ML19262A516
| ML19262A516 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 02/28/1977 |
| From: | Pullin A BURNS & ROE CO. |
| To: | |
| References | |
| TASK-TF, TASK-TMR PROC-770228, NUDOCS 7911090546 | |
| Download: ML19262A516 (54) | |
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O r1Nat SYSTEM DESCRIPTION (Index No. 4B)
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CONDENSATE POLISHING SYSTEM (B&R Dwg. No. 2006, Rev. 17)
JERSEY CENTRAL POWER & LIGHT COMPANY THREE MILE ISIAND NUCLEAR STATION UN7.T NO. 2 Issue Date February, 1977 Prepared by-A.
D.
Pullin Burns and Roe, Inc.
.b 700 Kinderkamack Road
- k
- Oradell, F.
J.
Q 07649 7911090 id.
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Q TABLE OF CONTEh"2S FOR CONDENSATE POLISHING SYSTEM N,
Section Pace
1.0 INTRODUCTION
1 1.1 System Functions 1
1.2 Summary Description of the System 2
1.3 System Design Requirements 5
2.0 DETAILED DESCRIPTION OF SYSTEM 9
2.1 Components 9
2.2 Instruraents, Controls, Alarms and 23 Protective Devices
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3.0 PRINCIPAL MODES OF OPERATION 26 3.1 Startup 26 3.2 Normal Operation 27 3.3 Shutdown 28 3.4 Special or Infrequent Operation 28 3.5 Emergency 29 4.0 HAZARDS AND PRECAUTIONS 29 o
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APPENDIX
,. s, Title Table No.
Influent Condensate Water Analysis 1
Effluent Condensate Water Quality 2
Condensate Polishing Tanks 3
N.
Mixed ' Bed Resin 4
Regeneration Tank.
5 Mixing and Storage Tank 6
Hot Water Tank 7
Acid Storage Tank 8
Acid Polisher Pumps 9
Caustic Storage Tank 10 Caustic Polisher Pumps 11 Aqueous Ammonia Storage Tank 12 Aqueous Ammonia Pumps 13 Sodium Sulphite Feeder & Storage Tank 14 Sodium Sulphite Pumps 15 Condensate Polisher Regeneration Sump and Pumps 16 Ammonium Hydroxide & Hydrazine Feed and
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Measuring Tanks 17 Ammonium Hydroxide and Hydrazine Feed Pumps 18 Ammonium Hydroxide Mix Tank 19 Ammonium Hydroxide Mix Tank Pump 20 Pane 1-Moun.ted Annuncia tor Inputs 21 O
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ATE POLISHING SYS"]
s It"1RODUCTICN l'. 0
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{.1 Svntem Functions The primary function of the Condensate Polishing System is to reduce the level of suspended and dissolved impurities in the Feedwater and Condensate system to acceptable levels, and thereby climinate impuritier that could cause corrosion of steam generator tubes. In addition, the system can regenerate its exhausted resin beds in periodic stages and transfer the regeneration wastes for treatment and disposal.
The system is de, signed to treat the discharge of the condensate pumps befsre it enters the feedwater heaters and steam generators.
Polishing the condensate minimizes buildup of scale on the heat transfer surfaces of the feedwater heaters and steam generator tubes which wou19. reduce their heat transferability and result in a lower thermal efficiency of the power plant.
In addition, the Condensate Polishing System provides ammonium
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hydroxide and hydrazine feed to the Condensate and Feedwater System for maintaining feedwater pH and scavenging oxygen respectively.
The Condensate Polishing System has an interface with the following systems:
(Drawing numbers refer to Burns and Roe flow diagrams. )
a.
Feedwater and Condensate (Dwg. No. 2005) b.
Makeup water Treatment (Dwg. No. 2006) c.
Domineralized Service Water (Dwg. No. 2007) d.
Service Air (Dwg. No. 2014)
Secondary Plant Sampling (Dwg. No. 2015) e.
f.
Circulating Water (Dwg. No. 2023) g.
Radwaste Disposal R.C.
Liquid (Dwg. No. 2027)
G 0 - 9'
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h.
Radwaste Disposal Solid (Dwg. No. 2039) p, U
i.
Radwaste Miscellaneous Liquid (Dwg. No. 2045) j.
Sump Pump Discharge (Dwg. No. 2496) k.
Radiat. ion Monitoring 1.2 Summarv Description of the System *(Refer to B&R Dwg. No. 2006, Rev.13, and L*A Water Conditioning Co. Dwgs. No. D-4519 D
& D - 4522F)
The Condensate Polishing System normally processes and chemi-cally feeds the discharge flow of two out of three condensate pumps, except for the flow to the turbine exhaus t hood sprays.
The condensate pumps discharge flow can bypass the condensate polishing tanks through valve Co-V12 (reference S.D.
No. 4A, Feedwater and Condensate, for description of condensate polish-ing system bypass.)
O The condensate passes through seven polishing tqnks operating in a parallel flow arrangement.
An eighth polishing tank is in standby to be used when the mtKed bed resin in any of the other seven polishing tanks is exhausted.
A resin bed is exhausted when a predetermined measured total flow has passed through a polishing tank, a high pressure drop occurs across the system and/or resin trap, ' cur when the conductivity of a polishing tank effluent exceeds a predetanr.ined allowable level.
Each condensate polishing tank contains a mixed bed of cation and anion exchange resins.
Dissolved irgarities in the water are in the form of positively charged ions called cations and negatively charged ions en11 ed anions.
As th es e ions pass through t'he polishing tanks mbced bed resin, the cations are
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ionically bonded to the cation resin in exchange for an ammonium ion (NHj) which had been previously intentionally bonded
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to the cation resin during the ammoniation process in regeneration.
The anions are ionically bonded to the anion resin in exchange for a hydroxide ion (OH-) which had previously been intentionally bonded to the anion resin.
This ion exchange is the means by which the dissolved impurities N
are removed from the condensate.
The resin bead _ diameter is small, in the range of 20 (0.84 mm) to 40 (0.42 mm)imesh.
As water flows through the bed, suspended impurities are removed from the condensate by the resin acting as a filter.
For regeneration when a mixed bed resin is exhausted, the $xhausted re' sin frcm the polishing tank is transferred to the tregen-eration tank and a spare resin bed is transferred from the
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mixing and storage tank to the empty polishing tank.
Regeneration now legins by the induction of chemicals.
The exhausted resin is first cleaned with sodium sulphite (Na2SO ) fr m the 3
codium sulphite storage tank.
The purpose of chemically clcaning the resin with sodium sulphite is to remove from the resin iron impurities that had been removed from the conden -
sate.
The mixed resin bed is then backwashed to separate the cation and anion resins which are of different densities.
The
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anion resin bed is then regenerated by injecting the bed with diluted caustic (NaOH).
The caustic regeneration pump takes sodium hydroxide from the caustic storage tank and meters the caustic into a blending tee where a controlled flow of prembced hot water from the hot water tank and sluice water f
from the demineralized water storage tank is blended with the
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caustic for. dilution, The diluted caustic is then injected into the anion resin bed.
During anion regeneration, the negative
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1 impurity ions bonded to the anion resin during the polishing ions.
After re-cycle are removed and replaced with hydroxide
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generating the anion resin bed, the cation resin bed is regen-erated.
First the bed is injected with diluted sulphuric acid (H SO ).
The acid regeneration pump takes sulphuric acid from 2
4 the acid storage tank and meters acid into a blending tee where a controlled flow of sluice water from the domineralized water N
system is ble nded with the acid for-dilution.
The diluted acid is then injected into the cation resin bed.
During this re-generation step, the positively charged impurity ions, bonded to the ca tion resin during the polishing cycle, are removed and replaced the cation resin bed or the.cntird bed, with hydrogen ions.
- Next, is ammoniated by the injection of diluted aqueous ammonia (NH 0H).
4 The aqueous ammonia pump takes aqueous ammonia from the aqueous ammonia storage tank.and meters ammonia into a blend-())
ing tee where a controlled flow of sluice water is blended with the ammonia for dilution.
The diluted ammonia is then injected into the cation resin bed.
The ammonium ions (NH{} replace the hydrogen (H+) ions from the previous steps of regeneration.
The reason for ammoniating the cation resin is so that the cation resin will not remove ammonia from the condensate.
The condensate contains ammonia for the purpose of controlling the condensate pH.
The resins are next rinsed and transferred to the mixing and storage tank where the beds are intermixed.
The regeneration cycle is then completed and this spare mixed bed is ready to transfer to a polishing tank as required.
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The sluice water and chemical wastes are directed to a drain
'5 pot and then to the condensate polisher regeneration sump,
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to the neutralization tank, or to the miscellaneous waste holdup tank depending on chemical concentrations and/or radioactivity levels.
Blank tees are provided for resin removal or refill.
The dondensate and Feedwater chemical feed consists of two s
chemical solution tanks, two chemical solution measuring tanks, an ammonium hydroxide mix tank, two chemical hand pumps, and four chemical feed pumps.
Chemical addition of ammonia and hydrazine is injected as determined from stream samples of the feedwater for pH control and to remove dissolved oxygen in the feedwater.
The system is provided with the condensate Polishing control Panel No. 304 in the Turbine Building.
The control panel has a system flow diagram which gives a graphic representation of The action of all the active components of the the process.
system is indicated by lights on the panel to show the step of any cycle in progress.
The transfer of resin is initiated from the control panel.
The resin regeneration cycle can be manually or automatically controlled from the control panel.
The hydrazine and ammonium hydroxide feed is controlled automat-ically by the Recorder-Analyzer Panel 310 (refer to System De-scription for Secondary Plant Sampling, Index No. 12) and man-ually shutdown from Panel 305.
1.3 Svstem Desian Recuirements The condensate polishing system is designed to handle the con-to a densate discharge from two out of three condensate pumps max imt., flow rate of 17,400 gpm and maximum shutoff head of
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200 psig.
This maximum flow rate is to be distributed through seven g3 _
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. polishing tanks arranged in parallel flow with an eighth tank as standby to be put in operation when the resin in any of the seven operating polishing tanks is exhausted.
The flow rate to be handled by one polishing tank is 2,487 gpm which is 50 gpm per square foot of resin bed area in the direction of condensate flow.
The design temperature of the polishing tanks is 135 F.
The design pressure is 200 psig.
The maximum pressdre drop across a mixed resin bed is 50 psi.
Each polishing tank has an underdrain,. designed to withstand a differential pressure of 200 psi.
A resin trap is located in the outlet of each polishing tank to prevent resin from entering the feedwater system.
Based on influent conden-sate water analysis (Table 1), the condensate polishing sys-tem will deliver effluent condensate water quality as given in Table 2 for normal operation.
During initial and subse-quent startups, the polishers will reduce all suspended and dissolved solids to 50% of the influent concentration or
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60 ppb, whichever is greater.
During periods of condenser leakage (1 gpm), the polishers will reduce total dissolved solids to not more than 50 ppb and will reduce suspended matter to 10% of influent concentration or 25 ppb, which-ever is greater.
The minimum condensate volume treated by each continuous oper-ating cycle of a polishing tank during normal operation is at least 160,000 gallons per cubic foot of resin The capacity of a unit when handling normal condensate during extended operation is equivalent to approximately 30 days per polish-ing tank at 2500 gpm.
The expected capacity of a unit during startup, based on startup condensate water analysis (Table 1) before cleaning is required, will vary with influent quality
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but should average 32,000 gallons per cubic foot of resin
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24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of
- This will exhau c a mixed resin bed in abo Following periods of ex-continuous operation at 2500 gpm.
contamination of the de-tended shutdown, corrosion product mineralizers will be substantially greater, requiring more frequent sodium sulphite soaking and backwashing but not more A sodium sulphite soak and frequent chemical regeneration.
backwashing of each domineralizer will be required af ter pro-cessing at least 32,000 gallons per cubic foot of resin.
Such backwash requirements may extend for a period of up to a The cation and anion month following an extended shutdown.
Mechanical de-resins are stable under design requirements.
gradation of the resin will occur from transferring the resin and will require replacement of the resin at a future time.
A hydrogen regeneration cycle, consisting of sodium sulphite, acid, and caustic treatment, used during startup _akes approxi-An ammoniated regeneration cycle consist-mately 400 minutes.
O ing of a hydrogen cycle and ammoniation, used during normal The total amount operation, takes approximately 600 minutes.
of sluice water required for a hydrogen regeneration cycle is For an ammoniated regeneration approximately 20,000 gallons.
The cycle, the total amount is approximately 40,000 gallons.
peak rate demanded is 200 gpm.
The regeneration sluice water from the water treatment demineralizers or from pource comes the 1,000,000 gallon demineralized water storage tank.
is class The seismic design classification of the equ ipment Equipment is designed for Zone 1 loads.
II.
The condensate main influent and effluent headers and piping to each polishing tank are carbon steel.
Themainresinpipe
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is rubber-lined carbon steel.
The regeneration and mixing
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and storage tanks, the resin piping, sluice water piping, over-and drain-line branch. piping is rubber-lined'. carbon flow, }
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steel.
The dilute and strong acid piping Ys alloy 20.
The dilute r
and strong caustic piping is stainless s. teel.
The ammonium hy-droxide and hydracine chemical feed lines are carbon steel.
The piping is designed, fabricated, inspected, and crected in accord-ance with ANSI Standared Code for Pressure Piping B31.1.0.
Two positive-displacement, acid-metering pumps and tvs positive-displacement, caustic-metering pumps are furnished.
One acid and N
one c'austic pump are required to operate in _ regenerating cycle and the other acid and caustic pumps are stanHby pumps.
The acid system is specially designed to prevent backflow of dilution.
water into the strong acid line and vice versa.
This special design incorporates a program contact which opens the dilution valve starting flow of dilution water only.
When this dilution flow is esta
- blished 'to t~he proper ~ amount, the flos switch c6ntact makes, starting'
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the acid pump, and at the same time opens the two acid block valves and closes the acid line bleed valve.
The procedure is reversed during shutdown.
Bulk storage of 93% sulphuric acid (H SO ) and 2
4 50% sodium hydroxide (NaOH) is provided by two 6'00-gallon tanks.
4 Dilution of acid to 8% and caustic to 4% takes place in mixing tees, where the chemical and sluice water are blended.
The dilution water for the caustic is temperature regulated by blending sluice water and hot water from the hot water tank.
A SOOO-gallon capacity storage tank for 28% aqueous ammonia (NH 0H), and three metering 4
pumps are provided for the resin ammoniating regeneration cycle.
Two pumps are required to operate during the ammoniation cycle.
Dilution of the ammonia to 6% takes place in a blending tee.
A dzr sodium sulphite feeder;.with. solution charber,.provides liquid sodiumsuphite.(NajSg)..
There are two. sodium sulphite. centrifugal pumps.of which one'must be in operation during-the' regeneration' cycle.
Dilution of the sodium sulphite to.4% takes. place-in'a..
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blending tee.
Selector switches and indicating lights are provided for gg _
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Control pun.ps and valves controlled from the Condensate Polisher l'
be transferred Interlocks are provided to that resin cannot Panel.
O trom a polishins tanx to the resencratins tanx while a resin "ea is being regenerated. Another interlock prevents the initiation or terminates a resin regeneration cycle when the neutralizing The condensate and feedwater chemical addition tank level is high.
stem is designed to add ammonium solution to maintain the sub feedwater pH at 9.4 to 9.5 and to add hydrarine to maintain the feedwater oxygen level at 0.0 to 0.005 ppm maximum at B.7 million pounds per hour.
The hydrarine is effective at a temperature 0
range or 180 F to 400 F.
The air pressure requirements are 80 psig minumum and 125 psig The maximum air temperature is 150 F.
The scivice maximum.
air requirement per regeneration cycle is approximately 5,000 standard cubic feet with a peak flow rate of 180 standard cubic feet per minute.
The air lines are provided with pressure gages, The regulators, and filters for mixing and motive air supplies.
compressed air system provides a 250 cubic feet air receiver for process air to the Condensate Polishing System (reference S.D.
10 Instrument and Service Air).
No.
The Condensate Polishing System is designed to automatically divert radioactive regeneration wastes to the misec11aneous waste hold-up (refer to Radwaste Miscellaneous Liquid System Description, tank Index No. 45A).
The Condensate Polishers Regeneration Station, 10-Unit Cation Sample Columns, and the Regeneration Sump are shielded with a 12-inch thick concrete wall to the tcp of the Condensa.e Polishers to reduce the dose level to 0.5 mr/hr (max.)
in the Turbine Building when the radiation buildup in these compon-ents exceeds the allowable level from a primary to secondary system Area radiation ^
leakage of 10 gal, per day with 0.1% failed fuel.
monitors are provided within this shielded area to alarm abnormal O
redieeson 1 eve 1s.
2.0 DETAILED DESCRIPTION OF SYSTEM g\\h )
2.1 Comoonents
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2.1.1 Condensa te Polishine Tanks, CO-K-1A, 1B, 1C, 1D, lE, 1F, 1G, lH O
The eight Condensate Polishing Tanks (Table 3) are vertical, cylindrical tanks, skid mounted with four polishing tanks per skid, arranged.?r Parallel flow.
Each tank is designed for 2,487 gpm and a pressure of 200 psig.
Each tank material.is carbon steel-lined with 3/16 inch thick rubber and contains a mixed bed ta( resin (Table 4) which is used to remove dissolved and suspended impurities from the condensate.
Seven tanks are normally in service with a total flow capacity of 17,400 gpm.
One tank is held in standby to replace exhausted resin beds.
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The tank internals consist of stainless steel hr. Osr with lat-erals for the inlet, a stainless steel line for the resin inlet, and a steel header with stainless steel 50 mesh screening for the under-drain.
Lines are provided for condensate influent and sampl-ing, resin in, air in, venting, condensate effluent and sampl-Q ing, resin out, sluice water addition, and bypass to the con-denser.
A 12-inch diameter carbon steel strainer is provided in the discharge piping of each polishing tank rated for a differen-tial pressure of 200 psig.
The pressure drop across the strain-er is less than 5 psig when clean at a flow rate of 2,500 gpm.
Each tank is.also provided with local influent and effluent pressure gauges.
The condensate Polishing tanks are located in the Turbine Build-ing at elevation 281' - 6".
2.1.2 Regeneration Tank, CO-T-2 O
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The regeneration tank (Table 5) is a vertical, cylindrical tank, skid-mounted.
It is used to receive and regenerate'the exhaust-,
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ed mixed bed resin from a polishing tank.
The tank is designed for 100 psig and a temperature of 120 F.
The tank material is carbon steel-lined with 3/16 inch thick rubber and can regenerate one mixed bed at a time.
Lines are provided for resin in, air in, sluice water in, dilutad chemical addition, venting, draining and resin-out.
The tank contents can be sluiced to the mixing and stor-age Shnk.
The tank internals consist _of an alloy 20 header with
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laterals for chemical injection and an underdrain with stainless steel laterals dnd screens.
The tar.k is provided with two glass sight ports with lights and a blank tee for resin refill or removal on resin inlet piping.
The Regenera: ion Tank is located in the Turbine Building at elevation 281' - 6".
2 Mixina and Storace Tank, co-T-3 O.1.3 The mixing and storage tank (Table 6) is a vertical, cylindri-cal tank, skid-mounted.
It is used to receive regenerated resin, air mix it, rinse it, and store the resin.
The tank is designed for 100 psig.
The tank material is carbon s' eel-lined with 3/16 inch thick rubber and can accept one regenerated mix-ed bed at a time.
Lines are provided for resin in, air in, venting sluice water in, draining, and resin transfer.
A spare ninth mixed resin bed is stored in this tank to be sluiced to a pol-ishing tank as required.
The tank internals consist of an underdrain with stainless steel laterals and 50 mesh screens.
Th'e tank is provided with two glass sight parts with lights and a blank tee for resin removal on the resin transfer piping.
g The mixing and storage tank is located in the Turbine Building at eleva tion 281Y
'6".
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, l2.1.4'. ' Hot wa ter Tank, co-T-4
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The hot water tank (Table 7) is a vertical, cylindrical tank, skid-mounted.
It is used to heat sluice water for caustic clilu tion.
The tank capacity is approximately 900 gallons and is designed for a pressure of 100 psig.
The tank material is carbon The tank internals include a 480V, steelvgined with Apexior.
50KW elActric immersion heater used to heat the domineralized water from 40 F to 180 F.
Lines are provided for demineralized water inlet, heatIed water outlet, and relief.
The tank is pro-vided with local temperature indicator, level switch, and thermostat for temperature control.
The hot water tank is located in the Turbine Building at 6".
elevation 281' 1.5 Acid Storace Tank. WT-T-7 The acid storage tank (Table 8) is a horizontal, cylindrical tank used for storage of concentrated 93% sulphuric acid (H SO ).
The tank provides acid injection to both the makeup 2
4 water treatment system and the condensate polishing system.
The tank capacity is 6,400 gallons and is designed for atmos-pheric pressure.
The tank material is carbon steel-lined with 6 mils of Keysite #100.
Lines are provided for external fill-
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ing, breather with desiccating cylinder, vent with check valve, and suction plus relief return for each of four acid pumps.
A liquid level indicator with alarm switches is mounted on the tank with an air connection.
The acid storage tank is located in the coagulator Building.
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2.1.6 Acid Polisher Pump, WT-P-14 O
The acid polisher pump (Table 9) is a simplex diaphragm type pump with a capacity of 130 gph at a rated discharge pressure of 30 psi.
It is equipped with an external relief valve set at 40 psi, suction stra,iner, manual suction and discharge valves, The and 'g discharge tap with surge chamber and pressure gauge.
purpose of the pump is to transfer concentrated sulphuric acid from the acid stor. age tank either to the regeneration tank af ter passing through a mixing and dilution tee or to the neu-tralization tank.
A spare acid pump (WT-P-11) is provided for both the makeup water treatment system and condensate polishing system (refer to the Make-Up water Treatment System Description, Index No. 4C).
The pump is driven by a 1/2 hp motor.
Pump control and indica-The pump
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tion is from the Condensate Polisher Control Panel.
is powered from MCC 2-31D.. The pump is located in the Coagula-tor Building on top of the acid storage tank.
2.1.7 Caustic Storace Tank, WT-T-8 The caustic storage.
'. (Table 10) is horizontal, cylir.drical tank used for storage of 50% sodium hydroxide (NaOH).
The tank provides caustic injection to both the makeup water treatment system and the condensate polishing system.
The tank capacity The is 6,400 gallons and is designed for atmospheric pressure.
tank material is carbon steel lined with 12 mils of Keysite
- 740.
Lines are provided for external filling, vent, and suc-s The tion plus relief return for each of four caustic pumps.
tank internals have a SKW electric heater to maintain the O
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caustic solution heated to 75 F.
A liquid level indicator
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with alarm switch, a temperature indicator, and a temperature controller including a low level cutoff for heater control are mounted on the tank.
The caustic storage tank is located in the Coagulator Building.
2.1.8 Causeig ro1isher rumm, wT-r-13
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The caustic polisher pump (Table 11) is a simplex diaphragm type pump with a capacity of 160 gph at a rated discharge pressure of 30 psi.
It is equipped with an external relief valve set at 30 psig. suction and discharge isolation valves, and a discharge tap with surge chamber and pressure gauge.
The purpose of the pump is to transfer caustic from the caustic storage tank either to the regeneration tank after O
passing through a mixing and dilution tee or to the neutrali-zation tank.
A spare caustic pump (WT-P-12) is provided for l
both the make up water treatment system and condensate pol-f ishing system (refer to the Make-Up Water Treatment System I
Description, Index No. 4C).
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The pump is driven by a 1/2 hp motor.
Pump control and ind1-cation is from the Condensate Polisher Control Fanel.
The pump is powered from MCC 2-31D.
The pump is located in the Coagulator Building on top of the caustic storage tank.
2.1.9 Acueous Ammonia Storace Tank, AM-T-6 The aqueous ammonia storage tank (Table 12) is a horizontal, cylindrical tank used for storage of 28% aqueous ammonia.
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The tank provides ammonium injection for the condensate pol-
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ishing system regeneration cycle.
The tank capacity is 5,000 gallons and is designed for atmospheric pressure.
The tank material is unlined steel.
Lines are provided for filling, vent, and suction plus relief return for each of diree aqueous ammonia pumps.
A liguid level indicator with alarm switches is mounted on the tank with an air connection.
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The aqueous ammonin storage tank is located in the yard area on the south side of the Coagulator Building.
2.1.10 Acueous Ammonia Pumos, AM-P -4 A, 4B, and 4C The aqueous ammonia pumps (Table 13) are positive displacement type metering pumps with a capacity each of 159,gph at a rated discharge,. head-. of 40,f t'.
They are equipped with exter-([)
nal relief valves set at 50 psig., suction strainer, manual suc-tion and discharge isolation valves, and a discharge tap with surge chamber and pressure gauge.
The purpose of the pump is to transfer concentrated aqueous ammonia from the aqueous ammonia storage tank to the regenera-tion tank after passing through a mixing and dilution tee.
Two pumps are operated during the regeneration cycle with the third on standby.
The pumps are driven by 1/2 hp. motors.
Pump control and in-dication is from the Condensate Polisher Control Panel.
The pumps are powered from MCC 2-31D.
The pumps are located in the yard area on top of the aqueous ammonia storage tank
^
south of the coagulator Building.
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WT-M-1 and WT-T-ll 2.1.11 Sodium Sulohite Feeder and Storace Tank, O
The sodium sulphite feeder and storage tank (Table 14) in-a motor driven cludes a dry sodium sulphite storage hopper, dry feeder, and a solution chamber with mixer.
The dry sodium sulphlpe is mixed with demineralized water from the demineral-The sodium
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ized water storage tank into a saturated solution.
sulphite solution is used to remove iron impurities during the regeneration cycle.
The tank capacity is 50 gallons and is The tank is carbon steel.
designed for atmospheric pressure.
- overflow, Lines are provided for demineralized water addition, drain, and suction to the two sodium sulphite pumps.
The tank internals include a n.ake up water float valve and portable 1/4 hp motor driven mixer.
tank are located in the The sodium sulphite feeder and storage f-()
Coagulator Building.
2.1.12 Sodium Sulchite Pumos, WT-P-15A and 15B The sodium sulphite pumps (Table 15) are centrifugal type pumps with a capacity each of 6 gpm at a discharge pressure of 30 psig.
They are equipped with manual suction and discharge isolation discharge check valve and a discharge rotometer, rate
- valves, setter, and flow gauge.
The purpose of the pumps is to transfer sodium sulphite from the sodium sulphite storage tank to the regeneration tank af ter passing through a mixing and dilution tee.
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The pumps are driven by 3/4 hp motors.
Pump control and indi-The cation is from the Condensate Polisher Control Panel.
O pumps are powered from MCC 2-31D.
The pumps are located in the Coagulator Building.
WT-P-19A and B 2.1.13 Condensate Polisher Receneration Sumo and Pumps, condensate polishe~r regeneration sump is a stainless steel T
lined concrete vault used to receive the liquid wastes from either the Condensate Polisher System (if pH within limits) and/or from the Control Building Area and/or the Turbine Building floor The sump (if radioactivity in these sumps exceeds limits).
drains dimensions are 10 ' x 10 ' x 3 '-6" deep with a capacity of 2600 gallor The purpose of the sump is to route radioactive liquid wastes The two condensate to the Miscellaneous Waste Hold-Up Tank.
(Table 16) are vertical duplex polisher regeneration sump pumps typ e sump pumps.
Each pump is rated at 200gpm at a total dis-charge head of
,80 feet.
Each pump is driven by a 10 hp motor.
Control and indication is provided locally.
Pump WT-P-19A is powered from MCC 2-31A and pump WT-P-19B is powered from MCC2-71A.
2.1.14 Ammonium Hvdroxide and Evdrazine Feed and Measurina Tanks, AM-T-1, 2,
4, 6
The ammonium hydroxide and hydrazine feed and measuring tanks (Table 17) are vertical, cylindrical tanks, skid mounted.
The The feed tanks __,
tanks are used for feedwater chemical treatment.
have a capacity.'of 150 gallons each and the measuring tanks The tank material is 1/8 inch stainless approximately 6 gallons.
Lines are orovided for manual pump filling, chemical steel.
puap suction, relief return, venting, overflow, draining, measur-The ing tank interconnection and demineralized water addition.
ammon.ium hydroxide feed tank only has a chemical injection line.'
The tanks include local level gauge, and level. switches.
\\S1
.\\n\\9 7.
G O
The ammonium hydroxide and hydrazine feed and measuring tanks are located in the Turbine Building at e leva t ion 2 81 ' -6 ".'
O 2.1.3 5 Ammonium Hvdroxide and Hvdrazine Feed Pumos, AM-P-lA, 1B and 2 The ammonium hydroxide and hydrazine feed pumps (Table 18) are simpicx diaphragm, positive displacement type pumps of cast-iron and
.316 S.S. respectfully,with a capacity of 15 gph at 180 psig.
Each purhp is equipped with an external relief valve set at 250 psig, pneumatic stroke adjustor, suction strainer, manual suction and discharge valves.. The hydrazine feed pumps (AM-P-1A and 1B) supply hydra =ine to the Condensate and Feedwater System (refer to System Description, Index No. 7A) for oxygen control and the ammonium hydroxide feed pump (AM-P-2) supplies ammonium hydroxide for pH control by transferring these chemicals from their respective feed tanks to the feedwater at the effluent line of the condensate colishers.
~....
(])
The pumps are driven by 1/4 hp motors.
Pump controls are auto-matic from a Recorder Analyzer Panel 310 (refer,to Secondary Plant Sampling System, Index No. 12).
Manual shutdown control and indication is provided from the Control Panel 305.
The pumps are powered from MCC 2-31D.
The pumps are located in the Turbine Building on top of their respective feed tanks.
2.1.16 Ammonium Hydroxide Mix Tank, AM-T-7 The ammonium hydroxide mix tank (Table 19) is a vertical, cylin-drical tank used as a spare source of ammonium hydroxide for feedwater chemical treatment if the ammonium hydroxide feed tank (AM-T-1) and/or the ammonium hydroxide feed pump ( AM-P-2) are out of service.
The tank has a capacity of 60 gallons and is designed for atmospheric pressure.
The tank material is
.3 /16 inch stainless steel.
Linas are provided for aqueous ammonia injection, venting, draining, demineralized water for dilution, campling and cher'. cal discharge.
The talk is provided with local g )b '
9 9
...e
r~.
L)
O The ammonium hydroxide mix tank is located in the Turbine Build-(])
ing at elevation 281' ~
6".
2.1.17 Ammonium Hvdroxide Mix Tank Pumo, AM-P-3 The ammonium hydroxice mix tank pump (Table 20) is a simplex diaphragm, positive displacement type pump with a capacity of 1.0 gph'at 275 psig, The pump is equipped with manual suction and discharge valves and a discharge chock valve.
The purpose of the pump is to transfer ammonium hydroxide from the ammonium hydroxide mix tank to the condensate polishers effluent piping.
The pump is driven by a 1/6 hp moto.
Pump control and indica-tion is local,,
The pump is powered rrom MPT-1A.
A local "ON-OFF" control switch with overcurrent trip is provided.
The pump is located in the turbine Building at elevation 281'-6".
2.1.18 Major Svstem Valves Condensate Polishina Tanks Influent Valves M81 and M81BY thna uch Mll and MllBY for Tanks CO-K-1A throuch CO-KalH Each condensate polishing tank has a 150#ASA influent double acting air motor operated 12" butterfly valve and 1" bypass diaphrage operated ball valve.
The bypass valve is opened first to equalize the pressure acrops the larger valve.
These valves are con trolled locally from the Condensate Polisher Control Panel.
Air is
~-
supplied from the Service Air System.
The influent valves fail as-is on loss of.. power or air and the bypass valves fail open.
Condensate Polishina Tanks Effluent Valves M82 throuch M12
^
For Tanks CO-K-1A throuch CO-K-lH Each condensate polishing tank has a 150 #ASA effluent pneu-
{}
matic motor operated 12n butterfly valve with positione'r indication gggg 359 7"-
O O
These valves are controlled
'used to balance the condensate flow.
locally or from the Condensate Polisher Control Panel. Air is O
supplied from the Service Air System.
These valves fail as-is on loss of power or air.
M86 throuch M16 Condensate Polishina Tank Recyclina Valves, for. Tanks CO-K-1A throuch CO-K-lH and MC-Z 4
Each polishing tank has a 150 #ASA pneumatic motor operated 8" butterfly valve which is used,to recycle high conductivity condensate flow through the polishing tanks back to the condenser.
Additionally, a pneumatic motor operated 3" ball valve is provided to isolate the condensate polishing system from These valves are controlled locally or the "H"
condenser.
from the Condensate Polisher Control Panel.
Air is supplied from the Service Air System.
These valves fail as-is on loss of power or loss of air.
O Condensate Polishina Tank Resin Transfer Valves, M83, M84, M85, M88, hnd M89 throuch M13, M14, M15, M18, and M19 for Tank's CO-K-1A throuch CO-K-lH Each polishing tank has the -following pnetmatic ball valves to transfer resins to the regeneration tank '(CO-T-2) and receive resin from the mixir.g and storage tank (CO-T-3) :
' (Typical for Tank CO-K-1A) a.
Tank Vent
- M83, 2"
b.
Transfer air
- M84, 2"
c.
Resin in
- M85, 2 d.
Sluice Water
- M88, 2"
e.
Resin out
- M89, 2 Local and, Condensate Polisher Control Panel controls are provided for manual or automatic regeneration transfer cycle.
Air is sup-
{}
These valves fai1.as-is cn loss plied from the Service Air System.
of power or air.
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TEST TARGET (MT-3)
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MICROCOPY RESOLUTION TEST CHART 4 g!
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TEST TARGET (MT-3) 1.0 l9534EM 6 EB E E M lll2.2
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MICROCOPY RESOLUTION TEST CHART
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Receneration Tank Resin Receneration Valves, C1, C2, C3, C5, (f
C6, C7, C8, C9, C10, Cll, C14, C15, C16, and C17 The regeneration tank has Eb following 125# diaphragm double act-ing operator to transfer and regenerate resin:
a.
resin in
- Cl, 2h" b.
Sqsin return
- C15, 2 (from mixing and storage tank) c.
air in
- Cll, 1 and C6, 2 "
d.
sluice water
- C16, 1 C14, 3 ", and C5, 3",
C7, 2"
e.
ammonia injection
- C17, 1 and C2, 1 f.
dilute caustic in
- C9, 2"
g.
dilute acid in
- C3, 2"
h.
resin out
- C8, 2 i.
sodium sulphite in
- C10, 3"
O These valves are controlled from the Condensate' Polisher Con- _
trol Panel and can bc manually or automatic _ ally actuated for a regeneration cycle.
Air is supplied from the Service Air System. These valves are air to open and close.
~
Mixina and Storace Tank Resin Transfer Valves, S1, S5, S7, S8 and S9 The mixing and storage tank has.the following 125e diaphragm double acting operator valves to rinse, mix and transfer resin:
a.
air in
- S 1, 1
, S7 2"
b.
sluice water in
- S S;, 3 ", S9, 1 c.
resin out
- S 8, 2%"
^
These valv'es are controlled from the Condensate Polisher Control
{g Panel and can be manually or automatically actuated for a final 1920 001.
O O
rinse cycle.
Air is supplied from the Service Air System.
O These valves fail closed on loss of power or air.
Chemical Iniection Valves, RlP throuch R12P The chemical injection lines teed to sluice water lines have 125# diaphragm double acting operator control valves either to S
dilute and route chemicals to the regeneration tank (Co-T-2 )
or to rcute concentrated chemicals to the acutralization tank (WT-T-9).
The following groups are associated with each chemi-cal injection:
a.
Acid injection, RlP thrc. ugh R4P b.
Caus tic injection, RKP through R8P Sodium sulphite injection, R9P through R10P c.
d.
Ammonia injection, RllP and R12P O
These valves are controlled from the condensate Polisher
~
Control Panel and can be manually or automatically actuated for a regeneration cycle.
Air is supplied from the Service These valves require air to open and close except Air System.
for R3P and R7P which are spring to open and air to close and RSP, R6P, and R8P, which are air to open and spring to close.
Licuid Waste Discharce Valv es, C4, C12, Cl3, S2, S4, S6, S10, X1, and X2 The regeneration liquid waste have the following 125# _ diaphragm doubic acting operator control valves to route these wastes to either the drain pot or to the high conductivity regeneration waste discharge line:
O
~
~
l920 002
O O
a.
air to drain pot
- C12, 2",and S2, 2"
b.
regeneration tank wastes
- C13, 3 " and C4, 3"
(])
c.
mixing and storage tank wastes
- S4, 3" and SG, 3"
d.
sluice water
- 510, 2"
e.
drain rot transfer valve
- X1, 3"
f.
regeneration waste transfer valve
- X2, 3"
N\\.
These valves are controlled from the Condensate Polisher Control Panel and can be manually or automatically actuated for a regeneration cycle.
Air is supplied from the Service Air System.
These valves require air to open and air to close.
Receneration Waste Ef fluent Valves WT-V-118 and WT-V-119 Two 3 inch, 150 lb ANSI, 200 F, diaphragm operated, two-posi-(
tion valves are used to route regeneration waste with high conductivity -
- 1 to the neutralization tank (WT-V-118) or
~
to the miscellaneous waste hold-up tanks (WT-V-119) if radio-activity level of the solution is high.
These valves are con-trolled by a radiation detector (WT-R-3894) which monitors the radioactivity level of the regeneration waste.
If the radioactivity exceeds the set point, the radiation monitor control will shut valve WT-V-118 and open valve WT-V-119.
A local control switch is provided to override the radia-tion monitor and open or shut either valve.
These valves fail closed on loss of power or air.
~ i920 003
O O
Recenerant Sumo Ef fluent valves WT-V-ll5 and WT-V-121 O
Two 4 inch, 150 lb ANSI, 200 F, diaphragm operated, two posi-tion valves are used to route the discharge from the Condon-sate Polisher Regeneration sump pumps either to the mechani-cal draft cooling tower (WT-V-115) or to the miscellaneous s
wastdshold-up tank (WT-V-121), if the radioactivity level of the solution is high.
These valves are controlled by a radia-tion detector (WT-R-389 5) which monitors the radioactivity level of the regenerati-sump pump discharge.
If the radio-activity exceeds the set point, the radiation monitor con-trol will shut valve WT-V-115 and open valve WT-V-121.
A local control switch is provided to override the radiati on monitor and open or shut either valve.
These valves fail closed on less of power or air.
O Miscellaneous valves Valve MC-1 is a 2 inch pneumatic actuated valve used to drain the condensate polishing tanks to the condensate polisher re-generation su.ap.
Valve BV-1 is a 2 inch pneumatic actuated valve controlled by thermostat (CS-TE) and used to regulate the sluice water temperature @ 120 F for dilution of concentrated caustic.
Valves PR-1 & 2 are 2 inch pneumatic pressure controlled valves used to regulate the air supply line header pressure
@ 15 psig to pass 140 SCFM to'the condensate polishers and regeneration station.
~
O 1920 004 -.
O O
Instruments, Controls, Alarms, and Protective Devices d.2 Instrumentation is provided locally and at the Condensate Polisher Control Panel for monitoring the operation of the system.
Full control of all functions in the condensate poli'shing system is possible from the Condensate Polisher Con-trol Panel, which also cc t ins process control instrumentation and a graphic representation of the process.
Each pump and pneumatic valve has indication and control from the control panel.
Condensate Polishina Tanks Instrumentation The condensate polishing tanks flow rate, pressure drop, and water quality influent and effluent conductivity is continuous-(])
ly monitored with the system in service.
Flow orifices (IH-FE and OH-FE), flow transmitters (IH-FT and OH-FT), and flow recorders (IH-FR and OH-FR) indicate and integrate the flow rate of the system.
The pressure drop is measured and recorded with instruments (H-DPT and H-DPR) and local indicator gauges (H-PIl and 2) provide influent and effluent pressures.
Sam-ples are obtained in the condensate influent and effluent pip-ing and routed to the cation column (CO-G-1) for conductivity measurement.
Each condensate polisher is equipped with a solenoid enclosure which is a local control panel for valve indication and control.
Each valve controlled from the panel has an "OPEN-AUTO-CLOSE" Control Switch.
This allows local control of each condensate polisher tank.
() 1920 005
U V
O A mixed bed resin bed, as previously mentioned, is exhausted when a predetermined measured total flow has passed through a polishing tank, a high pressure drop occurs across the sys-tem, or when the tank effluent conductivity exceeds a pre-determined allowable level.
Each condensate polishing tank has a% flow orifice, transmitter, and recorder point to mea-s ure, indicate, totalize, and record the flow rate of each tank.
Each tank'has a sample connection, routed to the cation column (CO-G-1), on its discharge line for conducti-vity measurement.
Additionally, each tank has local pres-sure gauges on influent and effluent piping and differential pressure gauges across the resin traps to monitor tank and trap pressure drop.
(/
Resin Transfer and Receneration Cvcle Control The mixing and motive air supply is provided with flow indi-cators (RS-FI 1&2) to pass 140 SCFM @ 80 psig, filters, plus local (RS-PI 1&2', and remote pressure gauges (RT-PI & - ST-PI).
The sluice water supply is provided with flow orifices and indicators to monitor locally the flow to the polishing tanks (RS-FI-6), locally the total flow for the regeneration cycle (RS-FI-3) remotely the flow for dilution of caustic (CS-FE, FT & FSIR), and remotely the flow for dilution of acid (AS-FE, FT, & FSIR).
Local indicators for caustic, acid, and sodium sulphite lines are provided to monitor flow.
(]k 1920 006
- - - ~ ~..
w. - ~.
.m-
n O
with thr6e points for vach pen,
... The two pen condudtivity recorder, On the Ccadensate Polisher Control Panel indicated the conductivity of chemical waste in the regeneration and mix and storage tanks.
An identical two pen recorder is provided for conductivity indication in the dilute acid and dilute caustic lines.
The regeneration waste conductivity instrument controls the diversion of chemical waste (high conductivity) to the neutralizer tank, and other b ste water (low conductivity) to the water treatment sump through the operation of two pneumatically operated valves.
The controls of the regenerating station of "ATC" Timers, relays and pneumatic solenoid valves.
The length of each step in the regeneration (which can be fully automatic except for resin exchange) is sequence determined by adjustable individual step timers.
At the end of the allotted time for an individual step, the timer energices the next timer for the following step.
Temperature control of caustic dilution water is maintained by a O
thermostat graced in the hoe water tanh and a temperature element (CS-TE) monitoring the dilute caustic and controlling the blend 0
valve which mixes the hot and cold water to maintain 120 F.
Condensate Polisher Sumo Pumos Control Level control of the sump pumps is provided by local "OFF-AUTO-START" control switches (spring return to AUTO).
In " AUTO", level switches (WT-LS-3884-1, 2 &3) monitor sump level and start a 'ead pump on high level.
A high high level starts the standby pump and alanns on Panel -
304.
Low sump level stops all running pumps.
Status of lead and stand-by pumps is automatically interchanged for every cycle of operation.
Condensate and Feedwater Chemical Feed Control The automatic controls for the ammonium hydroxide and hydrazine subsystem are provided from the Secondary Sampling System (Refer to O
S.o. zndex no. 12).
A pneumatic to e1eceric converter is 1920 007
-2s_
O U
provided in the Makeup Water Treatment Control Panel and a
" HAND-OFF-AUTO" control switch for pump controls except for A
s,/
ammonium hydroxide mix tank pump ( AM-P-3) which is locally controlled with an "ON-OFF" switch.
Radioactive Waste Discharce Control A radiation monitor is provided in the discharge waste line from N
the Chndensate Polishing Regene. ration Station to the Neutraliza-tion Tank (WTR-R-3894) and from the Condensate Polisher Regen-eration Sump discharge line to the Mechanical Draf t Cooling Tower Blowdown (WT-R-3895).
The radiation monitors provide input signals to the indicating controllers (WT-RI & FHS-3894
& 3895) to reposition control valves WT-V-ll8/119 & 115/121 to route the waste effluent to the Miscellaneous Waste Hold-Up Tank on exceeding their setpoints.
()
Alarms The alarms provided on the Condensate Polisher Control Panel are listed in Table 21. There is a common alarm " Condensate Polishing System Trouble" annunciated in the control room on
~
turbine auxiliaries monitoring Panel 17 that is annunciated by the actuation of any alarm on the Condensate Polisher Control
'.7anel.
Protective Devices The hot water tank is equipped with a 3/4" high pressure relief valve PSV-3 set O 100 psi.
A 2" high pressure relief valve ( PSV-1) set @ 100 psig is provided for the resin outlet.
from polishers line and for the resin inlet to polishers line.
The positive displacement chemical pumps are fitted with dis-()
charge rel'ief valves set at 40 psig.
-25a-1920 008 me_
O O
~
' Area radiation monitors adjacent to the polishers are provided as an early indication of a radioactive build-up in the pol-(
ishers due to primary to secondary leakage in the steam gener-ator tubes.
Radiation monitors monitor radioactivity levels in the regeneration wastes lines to the neutralization tank and from the condensate polisher regeneration sump discharge line.
N 3.0 PRINCIPAL MODES OF OPERATION 3.1 Startuo To start up the condensate polishing system, chemically charge the mixing bed resins.
The regeneration tank is filled with a resin bed and regenerated twice to bring the resin to full capacity.
Af ter all eight polishing tank resin beds and the spare resin bed in the mixing and storage tank have been ini-tially charged, line up the influent and effluent valves on seven polishing tanks for parallel flow from a condensate pump discharge to the outlet of the third stage feedwater heaters FW-S-6A/6B (reference Feedwater and Condensate System Description Index No. 4A) and recirculate back to the con-denser.
Initially, with the given startup influent condensate water analysis (Table 1) a polishing unit will average 32,000 gallons per cubic foot of resin before chemical cleaning will be re-quired.
The resin transfer will then be manually initiated to the regeneration tank and the spare resin bed is manually transferred to the empty polishing tank.
The automatic re-generation sequence may not be initiated for sodium sulphite addition, soak, rinse,and backwash.
At this point, an alarm annunciates con.pletion of this portion of the regeneration cycle.
The resin is now transferred to the mixing and storage tank for air mixing, rinsing, and storage as a spare I920 009 resin bed... -
U L
The condensate and feedwater chemical feed is started up by
' turning on a hydrazine and ammonium hydroxide pumps on AUTO.
(])
The chemical feed tanks are first filled including the measur-ing tanks.
The pumps are controlled from Recorder - Analyzer.
Panel 310 (refer to Secondary Plant Sampling System Description Index No. 12}.
3.2 Normhl Operation
~
~
N During normal op,eration, the condensate polishing system de-mineralizes the discharge ^ flow from two condensate pumps with seven polishing units in service.
The eighth polishing unit is in standby to replace an exhausted resin bed as required.
With the assumed normal influent condensate w ter analysis (Table 1) a polishing unit will average 160,000 gallons per cubic O
foot of resin before chemical cleaning and chemical regeneration will be required.
Manual traisfer of the resin and sodium sulphite soaking is performed as described in Section 3.1.
After completion of the sodium sulphite' portion of the regeneration cycle, automatic push button selection is available for caustic injection, rinse, acid injection, and displace-ment.
At this point, the operator may select partial or full bed ammonia. injection and displacement followed by resin transfer to the mixing and storage tank for air mixing, rinsing, and storage as a spare resin bed.
'~ The hydrogen regeneration cycle, consisting of sodium sulphite, acid and caustic treatment takes approximately 400 minutes.
An ammoniated regeneration cycle, consisting of a hydrogen cycle and ammoniation, takes approximately 600 minutes.
Either
^
regeneration cycle can be normally performed automatically as selected.
-;92000. ___
O O
The total amount of sluice water required for a hydrogen re-generation cycle is approximately 20,000 gallons; for an ammon-(])
iated regeneration cycle, the total amount is approximately 40,000 gallons.
The peak rate demanded is approximately 200 gpm.
The. condensate and feedwater chemical addition subsystem is norrqlly in-service with one of two hydrazine pumps on and the ammonium hydroxide feed pump on with-both controlled from the secondary plant sampling system.
A hydrazine and an ammonium hydroxide mix tank pump are available for manual backup.
3.3 Shutdown The condensate polishing units are in operation as long as a condensate pump is in operation.
When all condensate /Conden-sate booster pump pairs have been stopped, the influent and effluent valves to the condensate polishing tanks are closed.
O The tanks are drained including the regeneration and mixing and storage tanks plus the system piping.
The condensate and feedwater chemical addition subsystem is in operation as long as a condensate pump is in normal operation.
When all condensate / condensate booster pump pairs, have been stopped, the hydrazine and ammonium hydroxide chemical feed pumps are stopped.
3.4 Snecial or Infrecuent Ooeration _ _,
3.4.1 Resin Removal and Renlacement The demineralizing ability of the polisher resin diminishes through continuous use and through mechanical abrasion from transfer of the resin during regeneration.
When a resin bed is no longer capable of dcmineralizing the condensate efficiently, it is re-I) moved through a blank tee at the regeneration tank and disposed of via the TMI I solid radwaste disposal system.
A new resin
}g2Q Q bed is added through the same tee connection. ~S0_
O O ,' Emoraency If an underdrain screen breaks in a condensate polishing tank, O ene resin -111 ne t=arrea in-resin t=ar which grevenes the resin from getting into the feedwater and condensate system. An alarm for high differential pressure.across the resin trap wir und when sufficient resin has been carried into the trap. The polisher is to be taken out of service i=:nediately and the undebain screen must be repaired. 4.0 HAZARDS AND PRECAUTIONS When the conductivity of the effluent from a condensate polishing tank or from the condensate polishing system reaches a preset level, an alarm is actuated. The conductivity of the effluent of a conden-sate polisher, or of the condensate polishing system, must be reduced to an acceptable operating level immediately because the high conduc-tivity efflucnt will contaminate the Condensate and Feedwater System. Hazards associated with this system are those encountered with chemical solutions. Caution must be taken when working with caustic or acid. These chemicals cause burns with skin contact. Adequate protection must be provided and any bodily contact must be immediately flushed with fresh water and medically checked. The nominal heat tracing temperature for 50% caustic lines must remain below 100 F to preclude caustic stress corrosion cracking of piping. The maximum caustic concentration in the caustic Storage Tank (WT-T-
- 8) will be about 521 At such a concentration, caustic soda water sclution starts to crystallize at approximately 70 h'.
Precautions 0 should be taken so that the temperature of the tank and piping remains above 75 F and below 100 F. O 1920 012-
O O ABLE 1 O IITFLUENT CONDENSATE WATER AITALYSIS ErfE10ED NORMAL OPERATIO!T (nob) STARTUP (opb) Fe (Soluble) 5 40 Fe (Insol.) 20 1000 Cu (Soluble) 5 50 Cu (Insoluble) 10 500 Heavy Metals O O Cl 5 100 10 500 Si 02 PH 9.5 9.5 Conductivity (. tunhos ) 10 10 Total Solids 60 60-3000 (Normally 200) 6 O 1920 013 . - ~ -
O O (:) TABr2 2 EFFLUENT CONDENSATE' WATER QUALITY N Total dissolved Solids, ppb 25 Total Suspended Matter, ppb 25 Dissolved Silica, ppb 5 Total Chloride (As Cl), ppb 5 Total Iron (AS Fe) ppb 10 Total Copper (AS Cu), ppb 2 Total Heavy Metals, ppb O.0 Sodium, ppb 20 O s-l 1920 014
() (a') u-TABLE 3 f O CONDENSATE POLISHING TANKS e Identification CO-K-1A to CO-K-lH Number installed eight VenQor U*A Water Treatment Company N Desigd pressure, psig 200 Design temperature, F 200 Design flow rath, gpm 2,487 Size, diameter x height 8' x 5' Lining, rubber, in. 3/16 Material Carbon Steel Thickness, in. 11/16
- Manhole, I.D.,
in. 21 Design Code Section VIII, ASME Code for Unfired Pressure Vessels, 1971 O Code Stamp Yes STRAINER Number 8 Size shell, in. 18 inlet, in. 12 outlet, in. 12 Material Carbon Steel Screen size, mesh 50 Design Pressure, psig 200 Design Pressure Drop Clean, psig 5 Classification Code C Cleanliness B O 1920 015 Quality control 4 Seismic II _
O O O MIXED BED RESIN No. of Charges 9 Totakvolume/ Charge, ft 147 Cation Resin 200 C Amberlite Cation Volume, ft
- 81 Resin Size, mesh 40 Regenerr'ts H SO ; NH 2
4 4 Introduction Strength pg H SO4 ; M NH4 2 Anion Resin 900 C Amberlite Anion Volume, ft 66 Resin Size, mesh 40 Q Regenerants Na OHT NH4 Introduction Strength 4% NaOH; 6% NH 4 Temperature Max., F 140 Operating Temperature, F 135 Reducing Agent Na S0 2 3 Introduction Strength 4f Na SO 2 3 9 O 1920 016. -.. -. -.
O O O TPRLE S REGENERATION TAIM Identifica tion CO-T-2 g Numb c$" Installed - one Manufacturer Calif. Tank & Mfg. Corp. Design pressure,' psig 100 Design Temperature, F 120 Size, diameter x height 5'6" x 10'6" Lining, rubber, in. 3/16 Material Carbon Steel Thickness, in 5716
- Manhole, I.D.,
in., 18 Design Code Section VIII, ASME Code for unfired pressure vessels, 1971 Code Stamp Yes Classification Code C< Cleanliness B-Quality Control 4 Seismic II 9 9 P* 4 S. .= O 0 k920017 O - +.-
O O {} TABLE 6 MIXING AND STORAGE TANK n Identification Co-T-3 Nudbe'r Installed one "..anufacturer Calif. Tank & Mfg. Corp. Design Pressure,,psig 100 Size, diameter x height 5'-6" x 10'-9" Lining, Rubber, in. 3/16 Material Carbon Steel Thickness, in. 5/16 Manhole Size, I. D., in. 18 Design Code Section VIII, ASME code for unfired pressure vessels, 1971 []) Code Stamp Yes Classification Code C Cleanliness B Quality Control 4 Seismic II M. 3 . 1920 018
O O TABLE 7 O HOT WATER TANK Identification CO-T-4 Numbgg Installed one Manufacturer L*A Water Treatment Co. Capacity - gallons, 936 Outside diameter length 4'-6" x 7'-3" Shell Material Carbon Steel Lining Material Craphitic Carbon thickness, mils 3 Shell thickness, in. 1/4 Design Temperature, F 180 Design pressure, psi 100 Corrosion Allowance, in. '.012 Design Code ASME, Section VIII & IX, 1971 Code Stamp required Yes Heater Manufacturer Chromalox Type insertion Model No. 43-SST-854 Capacity, kw 5 Power Requirements 480V, 36, 60Hz~ Power Source MCC 2-31D Classification L al Code C Quality Control 4 Seismic II Cleanliness B 1920 019.
O O TABLE _8_ sJ ACID STORAGE TANK Identification WT-T-7 L*A Water Treatment Co. Vendor N. Capacity - gallons 6,400 One Installation Outside diameter length 8 ' -0 " x 15 ' -0 " Carbon Steel Shell Material Lining, Key site #100, mils 6 3/8 Shell Thickness, in. Design Temperature, F Design pressure, psig 10 Corrosion allowance, inc. Design code ASME, Sections VIII & IX, 197 [g Code Stamp required No Classification Level C Code 4 Quality Control Seismic II D Cleanliness P. (J' I920 020 -
O O TABLE 9 O ACID DOLISHER PUMP Pumo Details Identification WT-P-14 Numbeg Installed one Manufacturer Chemcon Model No. ll60-A20-135 Type S implex, diaphragm Rated Speed, strokes / min. 135 Rated Capacity, gph 130 Rated Discharge Pressure, psig 30 Design Pressure, casing, psig 50 () Design Temperature, F Lubricant / Coolant Oil / Fluid Min. Flow Requirements, gpm 0 Motor Details Manufacturer G.E. Type Induction Enclosure DP Rated Horsepower, hp 1 Speed, rpm 1,725 Lubricant / Coolant Oil / Air Power Requirements 480V,36, 60Hz, 3 amps (Full Load Current) Power Source MCC 2-31D () 1920 021 -o
O O TABLE 10 0 CAUSTIC STORAGE TANK Identification WT-T-8 Vendor L*.A Water Treatment Co. Capadsty - gallons 6,400 N Installation one Outside diameter x length 8'-0" x 15'-C" Shell Material Carbon Steel Thickness, in. 3/8 Lining, Keysite #740, mils 12 Shell Tcmperature, F Design pressure, psig 10 Corrosion tilowance, in', Design code ASME, Sections VIII & IX, 1973 (h Code Stamp r iquired No Heater Manufacturer Chromalox Type Immersion Model No. TM SS-3060SSLT Capacity, Kw 5 Power Requirements 480V, 3%, 60 Hz 1 Power Source MCC 2-31D Classification Level Code C 1920 022-Quality Control 4 Seismic II Cleanliness D ~ 0.
O O TABLE 11 O CAUSTIC POLISHER PUMP Pump Details Identification WT-P-13 4 Number' Installed 1 Manufacturer Chemcon Model No. ll60-316SS-135 Type Simplex diaphragm l ated 9 peed, strokes / min. 135 Rated Capacity, gph 160 Rated Discharge Pressure, 9sig 30 Design Pressurc, Casing, psig 50 Design Temperature, F {]) Lubricant / Coolant Oil / Fluid Min. Flow Requirements, gpm O Motor Details Manufacturer G.E. Type Induction Enclosure D.P. Rated Horsepower, hp 1/2 Speed, rpm 1,800 Lubricant / Coolant Oil / Air Power Requirements 480V, 35 60Hz, 3 Amps (Full load current) Power Source MCC 2-31D 1920 023 ^ O -
O O .~ TABLE 12 AOUEOUS AMMONIA STORAGE TANK Identification AM-T-6 ~% VendorN-L*A Water Treatment Co. Capacity - gallons 5,000 ~ Installation one Outside diameter & length 8'0" x 12'-0" Shell Material Carbon Steel Shell thickness, in. 3/8 Design temperature, F Design pressure, psig 15 Corrosion Allowance, in. Design Code ASME, Sections VIII & IX, 197: Code Stamp required No Classification Level Code C Quality Control 4 Seismig II Cleanliness D S. 1920 024 (]).
O O Q TABLE 13 AOUEOUS AMMONIA PUMPS Pumo Details Ident?fication AM-P-4A, 4B, and 4C \\ Number installed 3 Manufacturer Chemcon Model No. Il60-CI-135 Type positive displacement Rated Speed, strokes / min. 135 Rated Capacity, gph 159 Rated Total Dynamic Head, ft. 40 Design Pressure, casing, psig 50 Design Temperature, F ( Lubricant / Coolant Oil / fluid Min. Flow Requirements, gpm 0 Motor Details Manufacturer Type Induction Enclosure TEFC Rated Horsepower, hp h Speed, rpm 1,725 Lubricant / Coolant Oil / Air Power Requirements 480V, 37, 60Hz Power Source MCC 2-31D () ~ 1920 025 - .ms m
O O TABLE 14 O S ODIU'4 SULPHITE FEEDER AND STORAGE TANK Identification WT-M-1 & WT-T-ll Number installed one Manufacturer Wallace & Tiernon N Model\\ A-728 r.pacity, gallons / tank 50 cubic, feet / feeder 13 Size, diameter x height 3'-O" x 3'-0" & 2'-6" x 2'-0" x 3'-8" Feed rate, cu. ft./hr. 18.1 Mixer Type Induction Rated Horsepower, hp 1/4 ()h Enclosure DP Power Requirements 110V, 15, 60 Hz Feeder Motor Type Induction Rated Horsepower, hp 1/4 Enclosure D.P. Power Requirements 110V, 15, 60 Hz Speed, rpm 1,725 Clnusificati;n Code C Cleanliness Class D Quality control level 4 ^ Seismic Class II 11)20 026
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(]) TABLE 15 SODIUM SULPHITE PUMPS Pumo Details Ident1?ication WT-P-15A, WT-P-15B Number Installed 2 Manufacturer Worthington Model No. 3/4 CN-4 Type Centrifugal Rated Speed, rpm 3500 Rated Capacity, gpm 6 Rated Discharge Pressure, psig 30 (]) Design Pressure, casing, psig Design Temperature, F Lubricant / Coolant oil / Fluid Min. Flow Requirements, gpm Motor Details Manufacturer Induction Type i Enclosure DP Rated Horsepower, hp 3/4 Speed, rpm 3500 Lubricant / Coolant Oil / Air Power Requirements 480V,39, 60Hz Power Source MCC 2-31D ^ ~ O l9'20 027
TABLE 16 CONDENSATE POLISHER REGENERATION SUMP PUMPS (]) Pume Details Identification WT-P-19A & B Number Installed Two Manufacturer Crane - Deming Model No. 3 MD Type Sg vertical, duplex Rated speed, rpm 1745 Rated Capacity, gpm, 200 Rated Total Dynamic Head, ft. 80 Design Pressure, Casing, psig 225 Design Temperature, F 250 Lubricant / coolant Oil / fluid Minimum Flow Requirements, gpm 40 Motor Details Manufacturer Westinghouse Type Induction Enclosure DP Rated Horsepower 10 Speed, rpm 1800 Lubricant / Coolant Oil / Air Power requirements Power source 480V, 35, 60 Hz, 13.Sa-F.L.C. 2-31A/41A Classification Level Code C Quality control 4 Seismic II Cleanliness D 4 ~ O 1920 028 -4 5-i
O o TABLE 17_ HYDRAZINE FEED IsND MEASURING TANKS Feed Measurina dentification AM-T-4 AM-T-1 - Ammonium Hydroxide AM-T-2 AM-T-5 - Hydrazine L*A Water Cond. Co L*A Water cond. Co Vendor Two Two Jo. Installed 6 150 Capacity, gallon $ Vertical Vertical Installation 2'-6" x 4'-3" 12" x 12" ~ outside diameter & Length 304S.S. 304 S.S Shell material 1/8 1/8 Shell thickness, in. 200 230 Design temperature, F Atomspheric Design prensure, psig ASME Design Code No Code Stamp required O Level Classification C Code 4 Quality control II Seismic D Cleanliness m ~ O 1920 029
0 O =c is M1MONIUM HYDROXIDE AND HYDRI,ZINE FEED PUMPS I ..n o Details HYDRAZINE AMMONIUM HYDROXIDE Identification AM-P-1A, B AM-P-2 Number Installed Two One Manufacturer Chemcon. Model No, ll30-316SS-90 1130-CI-90 ,'\\ Type Simplex Rated Speed, strokes / min 90 Rated Capacity, gph 15 Rated Total Discharge Pressure, psic 180 Design Pressure, casing, psig 250 Design Tcm pera ture, OF 200 Lubricant / Coolant _ Oil / Fluid P Flow Requirements, gpm 0 Motor Details Manufacturer Reliance Type induction Enclosure TE Rated Horsepower 1/4 Speed, rpm 1725 Lubricant / Coolant Oil / Air Power Requirements ~ ~
- Power Source Panel 305 9.
O e 97-1920 030 e = w s e .m
O O TABLt 19 O. nnnon1on nyoRox1or x1x TAux AM-T-7 Identification B&W endor Jumber Installed One 60 Capacity Installation 's Vertical 24"x30" Outside diameter and length .~ ' Type 304 S.S. Shell material 3/16 Shell thickness, in. Buffalo Tank Manufacturer
- r 150 Design Temperature Design pressure, psig.
Atmospheric Design Code Non Code no e Stamp Required Level Classification C Code 4 Quality Control II Seismic D Cleanliness 9 e a. ~ O ~ 1920 031. .,w- .m ..--e e m-. .e o
O 0 T m t 20 A?O10NIUM HYDROXIDE MIX TANK PUMP QamoDetails Identification AM-P-3 Number Installed One 'endor - B&W Manufacturer Lapp N Model No. \\ . LS-5 Type - Positive displacement Rated Speed, strokes / min.
- 44 Ruted Capacity, gpm
_ l.0 Rated Discharge Press., psig 275 Design Pressure, casing, psig 500 Design Temperature, F ,70-120 Lubricant / Coolant Oil / Fluid Min. Flow Requirement, gpm 3 Motor Details Baldor Electric Co. Manufacturer Type Induction Enclosure TEFC Rated horsepower , 1/6 Speed, rpm 1725 Lubricant / Coolant Oil / Air Power Requirements 120V. 1 g, 60 Hz, F.L.C.-4.4a .MPT - 1A Power source ~ O 1920 032 ,n .n. w
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O O O I + TABLE 21 'D PANEL-MOUNTED ANNUNCIATOR INPUTS NOTE: All Alarms are annunciated on the Condensate Polisher Control Panel No. 304 and a common alarm annunciates f in the Control Room " Condensate Polishing System / Trouble" on Turbine Auxiliaries Panel 17. Alarm Input Variable () Window Measured Variable, Units Se*,oints Source Range 1-1 Influent High Conductivity Field Set CO-G-1 0 - 5MM /cm j 1-2 2A-Polisher High Conductivity, Micromhos 0.12-0.15 CO-6-1 0 - 5MM /cm l-3 2A Polisher High Pressure Drop Resin Trap, 5+ DPI -WC 0-150 psi { psig i 1-4 2B-Polisher High Conductivity 0.12-0.15 CO-G-1 0-5MM/cm l-5 2B-Polisher High Pressure Drop Resin Trap,psig 5+ DPI-WC 0-150 psi l-6 2C-Polisher High Conductivity 0.12-0.15 CO-6-1 0-SMM/cm 1-7 2C-Polisher High Pressure Drop Resin Trap,psig 5+ DPI-WC 0-150 psi 1-8 2D-Polisher High Conductivity 0.12-0 15 CO-G-1 0-5MM/xm 1-9 2D-Polisher High Pressure Drop Rosin Trap,psig 5+ DPI-WC 0-150 psi 1-10 Receiving Tank High Conductivity, Micromhos 40 CR-WC 0-10(X 100) MM/cm. 1-11 Acid Concentration Fault 6%1o-10%hi FRl-WC 0-10% (H SO ) 2 4 1-12 2E-Polisher High Conductivity, Micromhos 0.12-0.15 CO-G-1 0-5MM/cm. (]) 1-13 2E-Polisher High Pressure Drop Resin Trap,psig 5+ DPI-WC 0-150 psi 1-14 2F-Polisher High Conductivity, Micrombos 0.12-0.75 CO-G-1 0-5MM/cm. 1-15 2F-Polisher High Pressure Drop Rosin Trap,psig 5+ DPI-WC 0-150 psi l-16 2G-Polisher High Conductivity, Micrombos 0.12-0.15 CO-G-1 0-5MM/cm. 2G-Polisher High Pressure Drop Resin Trap,psig 5+ UPI-WC 0-150 psi l-17 [(3 2H-Polisher High Conductivity, Micrombos 0.12-0.15 CO-G-1 0-5MM/cm 1-18 2H-Polisher High Pressure Drop Resin Trap,psig 5+ DPI-WC 0-150 psi j 1-19 c7 1-20 Effluent High Conductivity Field Set CO-G-1 0-5MM/cm CD LN LN ) l
O O O s.. TABLE 21 (CONT ' D. ) [N* l' Alarm Input Variable Window Measured Variable, Units Setpoints Source Range l t' 2-1 High Dif ferential Pressure, psi 45 DPR-WC 0-100 psi 2-2 '2A-Polisher Low Flow, gpm Field set FRl-WC 0-30 (X100) gpm 2-3 2A-Polisher Exhausted FT-WC 0-960 counts FRl-WC G-30(X100)gpm 2-4 2B-Polisher Low Flow, gpm 2-5 2B-Polisher Exhausted FT,-WC 0-960 counts (~} '~ FRl-WC 0-30(X100)gpm 2-6 2C-Polisher Low Flow, gpm 2-7 2C-Polisher Exhausted FT WC 0-960 counts FRl-WC 0-30 (X 100) gpm 2-8 2D-Polisher Low Flow, gpm 2-9 2D-Polisher Exhausted FT-WC 0-960 counts 2-10 Mix & Storage Tank High Conductivity, 1.0 CR-WC 0 - 5FL'4/cm Micromhos 2-11 Caustic Concentration Fault 4% lo-6% hiFRl-WC 0-10%(NaOH) field set FRl-WC 0-30(XIOO)gpm 2-12 2E-Polisher Low Flow, gpm i 2-13 2E-Polisher Exhausted F T<-WC 0-960 counts FR1-WC 0-30 (X100) g pm 2-14 2F-Polisher Low Flow, gpm 2-15 2F-Polisher Exhausted FT -WC 0-960 counts 2-16 2G-Polisher Low Flow,gpm FRl-WC 0-30(X10D)gpm 2-17 2G-Polisher Exhausted FT-WC 0-960 counts FRl-WC 0-30(X100)gpm 2-18 2H-Polisher Low Flow,gpm 2-19 2IT onlicher Exhausted FT-WC 0-960 counts 2-20 Condensate Polisher Sump Level lHigh, in.(from 16 Wr-LS -3 884 top 6f sump) 0-31" Reference L*A Water Conditioning Co. flow diagrams D4519 and D4522. NO N CD CD LN 4s .}}