ML19224B684
| ML19224B684 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 02/28/1977 |
| From: | Metropolitan Edison Co |
| To: | Mullinix W NRC/IE |
| References | |
| SD-4B, TM-0425, TM-425, NUDOCS 7906180104 | |
| Download: ML19224B684 (58) | |
Text
.
s TMI DOCUMENTS DOCUMENT NO:
' d
.31 COPY l'u\\DE ON OF DOCUMENT PROVIDED BY METROPOLITAN EDISON COMPANY.
Wilda P. Mullinix, NRC 226 286 llOGIBo ; og
Exhibit I PP-119 " Preliminary "
ATTACFJENT A p,/
aA a
p PT&O P CCUMEh"r APPROVAL RECCRD Condensate Polishing System SD 4B Title Document Number 1.
Written By:
A.
D.
Pullin 12/1/76 PT&O Engineer 2.
Preliminary Approval:
D.
T.
Enclish 12/1/76 PT&O Group Supervisor 3.
Transmitted for Technical Review 4.
Technically Approved by:
(Name)
(Signature)
(Date)
Mech.
R.
Schlosser 1/10/77 R.
Schlosser 1/10/77 Nuclear HVAC M.
Schubert 12/13/76 I&C L.
Diaz 1/12/77 L.
Diaz 1/12/77
- .l e c t.
Stress J.
Lucena 1/10/77 Civil S.
Chou 12/10/76 5.
Final Approval Pr&O h.
!77 A
/
i 226 287
4 FINAL _ __
SYSTD1 DESCRIPTION (Index No. 4B) 1NDENSATE POLISHING SYSTEM (B&R Dwg. No. 2006, Rev. 17)
JERSEY OENTRAL PCWER & LIGHT COMPANY THREE MILE ISLAND NUCLEAR STATION
_J;
' UNIT NO. 2
~ ~~
Issue Date February, 1977 Prepared by-A.
D.
Pullin Burns and Roe, Inc.
700 Kinderkamack Road
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O [{ j
- Oradell, N. J.
07649 I
e
t r,
,s TABLE OF CONTJNTS FOR CONDENSATE POLISHING SYSTEM Section Pace 1.0 INTRODirTION 1
1.1 System Functions 1
1.2 Summary Description of the System 2
1.3 System Design Requirements 5
2.0 DETAILED DESCRIPTICN OF SYSTEM 9
2.1 Components 9
2.2 Instruments, Controls, Alarms and 23 Protectiv3 Devices
_;y 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 29 226 289 i
t APPENDIX i
Title Table No.
e Influent Condensate Water Analysis 1
Effluent Condensate Water Quality 2
Condensate Polishing Tanks 3
Mixed Bed Rosin 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
- 4 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 Measuring Tanks 17 Ammonium Hydroxide and Hydrazine Feed Pumps 18 Ammonimm Hydroxide Mix Tank 19 Ammonium Hydroxide Mix Tank Pump 20 Panel-Mounted Annunciator Inputs 11 226 290
t CCNDENSATE POLISHING SYSTEM 1.0 INTRCDUCTION
~ l System 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 eliminate impurities 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 designed to treat the discharge of the condensate pumps before it enters the feedwater heaters and steam generators.
Polishing the condensate minimizes buildup cf scale on the heat transfer surfaces of the feedwater heaters and steam generator tubes which would reduce their heat transferability and result in a lower thermal efficiency of the power plant.
In addition, the Co_ndensate Polishing System provides. ammonium
- 3]
hydroxide and hydrazine feed to the Condensate and Feedwater System for maintaining f aedwater pH.and scavenging oxygen respectively.
The condensate Pc lishing 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.
Demineralized Service Water (Dwg. No. 2007) d.
Service Air (Dwg. No. 2014) e.
Secondary Plant Sampling (Dwg. No. 2015) f.
Circulating Water (Dwg. No. 2023) g.
Radwaste Disposal R.C. Liquid (Dwg. do. 2027) 226 29l ;
E e
h.
Radwas te Disposal Solid (Dwg. No. 2039) i.
Radwaste Miscellaneous Liquid (Dwg. No. 2045) j.
Eump Pump Discharge (Dwg. No. 2496) k.
Radiation Monitoring 1.2 Summary Descriotion of the Svstem (Refer to B&R Dwg. No. 2006, Rev. 13, and L*A Water Conditioning Co. Dwgs. No. D-4 519 D
& D - 4522F)
The Condensuce Polishing System normally processes and chemi-cally feeds the discharge flow ;? two out of three condensate pumps, except for tne flow to the crbine exhaus t hood sprays.
The condensate pumps discharge flow can bypass the condensate polishing tanks tnrough valve CO-V12 (reference S.D. No. 4A, Feedwatar anc Condensate, for description of condensate polish-a ing system bypass J-
~2; The condensate passes through seven polishing tanks operating in a parallel flow arrangement.
An eighth polishing tank is in standby to be used when the mixed 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, or when the conductivity of a polishing tank effluent exceeds a predetermined allowable level.
Each condensate polishing tank contains a mixed bed of cation and anion exchange resins.
Dissolved impurities in the water are in the form of positively charged ions called cations and negativcly charged ions called anions.
As these ions pass through the polishing tanks mbced bed resin, the cations are n/
,09 (L0 LL E
ionically bonded to tbe cation resin in exchange for an ammonium ion (NHg) which had been previously intentionally bonded to the cation resin during the ammoniation process in regenera tion.
The anions are ionicall, 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 are removed from the condensate.
The resin bead diameter is small, in the range of 20 (0.84 cat) to 40 (0.42 mm)7 mesh.
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. exhausted resin frcm the polishing tank is transferred to the gregen-eration tank and a spare resin bed is transferred frcm the
- 3g mixing and storage tank to the empty polishing tank.
Regeneration now begips by the induction of chemicals.
The exhaus ted resin is first cleaned with sodi.:m sulphite (Na2SO ) from the 3
sodium sulphite storage tank.
The purpose of chemically cleaning the resi.n 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 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 from the demineralized water storage tank is b? ended with the caustic for: dilution, The diluted caustic is than injected into the anion resin bed.
During anion regeneration, the negative,
impurity ions bonded to the anion resin during the polishing cycle are removed and replaced with hydroxide ions.
After re-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 demineralized water system is ble nded with the acid for' dilution.
The diluted acid is then injected inte the cation resia bed.
During this re-generation step, the positively charged impurity ions, bonded to the ca=
tion resin during the poliching cycle, are removed and replaced with hydrogen ions.
Next, the cation resin bed or ther.entira bed, is ammoniated by the injection of diluted aqueous amonia (NH 0H).
4 The aqueous ammonia pump tak s aqueous ammonia from the aqueous ammonia storage tank and meters ammonia into a blend-32 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{)replacethe 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 m=nonia 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.
'L '-) (3 f) \\ t k
The sluice *,ater and chemical wastes are directed to a drain pot and then to the condensate polisher regeneration sump, to the neutralization tank, or to the miscellaneous waste holdup tank depending on chemical concentrations and/or radioaceivity le"els.
Blank tees are provided for resin removal or refill.
The Condensate and Feedwater chemical feed consists of two 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 rg; a system flow diagram which gives a graphic representation of the process.
The action of all the active components of the 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 parel.
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 Desicn Recuirements The condensate polishing system is designed to handle the con-densate discharge from two out of three condensate pumps to a maximum flow rate of 17,400 gpm and maximum shutoff head of 200 psig.
This maximum flow rate is to be distributed thrcugh seven n1 22[]
d'~- i
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 t. inks 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 bad area in the direction of condensate flow.
The design temperature of -he polishing tanks is 135 F.
The design pressure is 200 psig.
The maximum pressure drop across a mixed resin bed is 50 psi.
Each polish.ng tank has an underdrain, designad to withstand a differential pressure of 200 psi.
A re_.n 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
- a j dissolved solids to 50% of the influent concentration or 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 vill 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 but should average 32,000 gallons per t abic foot of resi 22
This will exhaust a mixed resin bed in about 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of continuous operation at 2500 gpm Following periods of ex-tended shutdown, corrosion product contamination of the de-mineralizers will be substantially greater, requiring more frequent sodium sulphite soaking and backwashing but not more frequent chemical regeneration.
A sodium sulphite soak and backwashing of each demineralizer 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 month following an extended shutdown.
The cation and anion resins are stable under design requirements.
Mechanical de-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 takes approxi-mately 400 minutes.' ~ An ammoniated regeneration cycle consist-ing of a hydrogen cycle and ammoniation, used during normal operation, takes approximately 600 minutes.
The total amount of sluice water required fer a hydrogen regeneration cycle is approximately 20,000 gallons.
For an ammoniated regeneration cycle, the total amount is approximately 40,000 gallons.
The peak rate demanded is 200 gpm.
The regeneration sluice water source comes from the water treatment demineralizers or from the 1,000,000 gallon demineralized watar storage tank.
The seismic design classification of the eg2ipment is Class II.
Equipment is designed for Zone 1 loads.
The condensate main influent and effluent headers and piping to each polishing tank are carbon steel.
The main resin pipe is rubber-lined carbon steel.
The regeneration and mixing and storage tan %s, the resin piping, sluice water piping, over-flow, and drain-line branch. piping is rubber-lined.carh 7
f i
steel.
The dilute and strong acid piping is alloy 20.
The dilute and strong caustic piping is stainless s. teel.
The ammonium hy-droxide and hydrazine chemical feed lines are carbon stee..
The piping is designed, fabricated, inspected, and erected in accord-ance with ANSI Standared Code for Pressure Piping B31.1.0.
Two posi+.ive-displacement, acid-metering pumps and two positive-displac ament, caustic-metering pumps are furnished.
Cne acid and cne caastic' pump are required to operate in a regenerating cycle and the other acid and caustic pumps are standby pumps.
The acid system is specially designed to prevent backflow of dilution.
water into the strong acid line and vice versa.
This special design incorporaten a program contact which opens the dilution valve starting flow of dilution water only.
When this dilution flow is esta
'blished to the~ proper amount, the ficw switch contact makes, starting
~
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
- 3}
during shutdown.
Bulk storage of 93% sulphuric acid (H SO ) and 2
4 50% sodium hydroxide (NaOH) is provided by two 6400-gallon tanks.
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 5000-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 feeders.with solution chamber,.provides liquid sodium suphite c.(Na Sgf.
There are two sodium. sulphite.. centrifugal 2
pumps..of which one'must be in operation during the! regeneration cycle.
Dilution of the sodium:sulphite to. 4% takes '; lace "in 'a..
blending tee.
Selector switches and indicating lignts are provided for 226 2963 i
pumps and valves controlled from the Condensate Polisher Control Panel.
Interlocks are provided to that resin cannot be transferred from a polishing tank to the regenerating tank while a resin bed is being regenerated. Another interlock prevents the initiation or terminates a resin regeneration cycle when the neutraliz:.ng tank level is high.
The condensate and feedwater chemical addition subsystem is designed to add ammonium solution to maintain the feedwater pH at 9.4 to 9.5 and to add hydrazine to maintain the feedwater oxygen level at 0.0 to 0.005 ppm maximum at 8.7 million pounds per hour.
The nydrarine is effective at a temperature 0
range of 180 F to 400 F.
The air pressure requirements are 80 psig minumum and 125 psig maximum.
The maximum air temperature is 150 F.
The service 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 pressura gages, regulators, and ' filters for mixing and motive air supplies.
The compressed air system provides a 250 cubic feet air receiver for process air to the Condensate Polishing System (reference S.D.
No.
10 Instrument and Service Air).
The Condensate Polishing System is designed to automatically divert radioactive regeneration wastes to the miscellaneous waste hold-up tank (refer to Radwaste Miscellaneous Liquid System Description, Index No. 45A).
The Condensate Pclishers Regeneration Station, 10-Unit Cation Sample Columns, and the Regeneration Sump are shielded with a 12-inch thick concrete wall to the top of the Condensate Polishers to reduce the dose level to 0.5 mr/hr (max.)
in the Turbine Building when the radiation buildup in these ccmpon-ents exceeds the allowable level from a primary to secondary system leakage of 10 gal. per day with 0.1% failed fuel.
Area radiation monitors are provided within this shielded area to alarm abnormal radiation levels.
2.0 DETAILED DESCRIPTION OF SYSTEM 2.1 Comocnents b
-~
1D, lE, lF, 1G, lH 2. 'l.1 Condensate Polishinc Ta nks, CO-K-1A, 1B, The eight Condensate Polishing Tanks (Table 3) are vertical, cylindrical tanks, skid mounted with four polishing tanks per skid, arranged for 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 of 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 gym.
One tank is held in standby to replace exhausted resin beds.
The tank internals co'nsist of stainless steel header 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-JJj 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 gym.
Each tank is also provided with local influent and eff luent pressure gauges.
The Condensate Polishing tanks are located in the Turbine Build-ing at elevation 281' - 6".
220](IS) 2.1.2 Receneration Tank, CO-T-2 The regeneration tank (Table 5) is a vertical, cylindrical tank, skid-mounted.
It is used to receive and regenerate the exhaust- _
.. ~. ~
.._.:..:.... u :..-
n,-.
c.
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,
_lu_ ice water _in, diluted. chemical addition, venting, draining and s
resin out.
The tank contents can be sluiced to the miring and stor-age tank.
The._ tank. internals consist,of an alloy 20 header with
~
laterals _ for cham _ical injection and an underdrain with stainless steel laterals and scre_ ens.
The tank is provided with two glass sight ports with lights and a blank tee for resin refill or removal on resin inlet piping.
The Regeneration Tank is located in the Turbine Building at elevation 281' - 6".
- .2 j 2.1.3 Mixine and S tora'ce' Tank,' CO-T-3 The mixing and storage tank (Table 5) 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 steel-lined with 3/16 inch thick rubber and can accept one regenerated mix-ed bed at a tima.
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.
The tank is provided with two glass sight ports with lights and a blank tee for resin removal on the resin transfer piping.
The mixing and storage tank is located in the Tu b ne Iding I
at elevation 281'J
'6".
3D I i
2.'l.4 Ho t Wa te r Ta nk, CO-T-4 The hot water tank (Table 7) is a vertical, cylindrical tank, skid-mounted.
It is used to heat sluice water for caustic dilution.
The tank capacity is approximately 900 gallons and is designed for a pressure of 100 psig.
The tank material is carbon steel-lined with Apexior.
The tank internals include a 48L 50KW electric t=mersicn heater used to heat the demineralized water from 40 F to 180 F.
Lines are provided for demineralized water inlet, heated 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 elevation 281' -
6".
- 3;
'.l.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 syatem 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-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 ccnnection.
The acid storage tank is located in the Coagulator Building.
2 2 6
- n;7s. _
c 2.1.6 Acid Polisher Pumo, WT-P-14 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 strainer, manual suction and discharge valves, and a discharge tap with surge chamber and pressure gauge.
The purpose of the pcmp is to transfer concentrated sulphuric acid from the acid storage tank either to the regeneration tank after 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-If}
tion is from the Condensate Polisher Control Panel.
The pump 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 Storage Tank, WT-T-8 The caustic storage tank (Table 10) is horizontal, cylindrical tank used for storage of 50% sodium hydroxide (NaOH).
The tank provides caus tic injection to both the makeup water treatment system and the condensate polishing system.
Thg tank capacity is 6,400 gallons and is designed for atmospheric pr' seure.
The e
tank material is carbon steel lined with 12 mils of Keysite
~
4740.
Lines are provided for external filling, vent, and suc-tion plus relief return for each of four caus tic pumps.
The tank internals have a SKN electric heater to maintain the 226 350i g7]$
o caustic solution haated to 75 F.
A liquid level indicator with alarm switch, a temperature indicator, and a temperature controller including a low level cu toff for heater control are mounted on the tank.
The caustic storage tank is located in the Coagulator Building.
2.1.8 Caustic Polisher Pumo, WT-P-13 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 af ter passing through a mixing and dilution tee or to the neutrali-sation tank.
A spare caus tic pump (WT-P-12) is provided for t
both the make up water treatment system and condensate pol-ishing system (refer to the Make-Up Wa ter Trea tment System Description, Index No. 4C).
The pump is driven by a 1/2 hp motor.
Pump control and indi-cation is from the Condensate Polisher Control Panel.
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.
226JEQsk [}D O
The tank provides ammonium injection for the condensate pol-inhing 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 sucti.
plus relief return for each of thre a aqueous ammonia pumps.
? liquid level indicator with alarm switches is mounted on the tank wit h an ai connection.
The aqueous memonia storage tank is located in the yard area on the south side of the Coagulator Building.
2.1.10 Acueous Ammonia Pumes, 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-i$$
nal relief valves set at 50 psig., suction strainer, manual suc-tion and discharge isolation valves, and a discharge tap with surge enamber 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 af ter 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 pwnps 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.
p5
~2
'['[ 6 i :
~
2.1.11 Sodium Sulchite Feeder and Storace Tank, WT-M-1 and WT-T-ll The sodium sulphite feedar and storage tank (Table 14) in-cludes a dry sodium sulphite-storage hopper, a motor driven dry feeder, and a solution chamber with mixer.
The dry sodium sulphite is mixed with demineralized water from the demineral-ized water storage tank into a saturated solution.
The sodium sulphite solution is used to remove iron impurities during the regeneration cycle.
The tank capacity is 50 gallons and is designed for atmospheric pressure.
The tank is carbon steel.
Lines are provided for de'.tineralized wat.
addition, overflow, drain, and suction to cne two sodium sulphite pumps.
The tank internals include a make up water float valve and portable 1/4 hp motor driven mixer.
- aj The sodium sulph'it'e feeder and storagh tank are located in the
~
Coagulator Building.
2.1.12 Sodium Sulchite Pumes, 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 valves, discharge check valve and a discharge rotometer, rate setter, and flow gau,e.
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.
30L 226$2Ei"
s The pumps are driven by 3/4 hp motors.
Dump control and indi-cation is from the Condensate Polisher Control Panel.
The pumps are powered from MCC 2-31D.
The pumps are located in the Coagulator Building.
2.1.13 Condensate Polisher Receneration Sumn and Pumos, WT-P-19A and n, The condensate polisher regeneration sump is a Ltainless steel lined concrete vault used to receive the liquid wastes from either the Condensate Polisher System (if pH vithin limits) and/or from the Control Building Area and/or the Turbine Building floor draint (if radioactivity in these sumps exceeds limits).
The sump dimensions are 10' x 10' x 3'-6" deep with a capacity of 2600 gallons.
The purpose of the sump is to route radioactive liquid wastes to the Miscellaneous Was te Hold-Up Tank.
The two condensate polisher regeneration sump pumps (Table 16) are vertical duplex 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 2-3LA and pump WT-P-19B is powered from MCC2-71A.
2.1.14 Ammonium Hvdroxide and Hvdrazine Feed and Measuring 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 tanks are used for feedwatar chemical treatment.
The feed tanks have a capacity of 150 gallons each and the measuring tanks approximately 6 gallons.
The tank material is 1/8 inch stainless steel.
Linas are provided for manual pump filling, chemical pump suction, relief return, venting, overflow, draining, measur-ing tank interconnection and demineralized water addition.
The ammonium hydroxide feed tank only has a chemical injection line.
The tanks include local level gauge, and level switches.
226 @K 3 C)] i
The ammonium hydroxide and hydrazine feed and measuring tanks located in the Turbine Building at elevation 281'-6".'
are 2.1.15 Ammonium Hydroxide and Hydrazine Feed Pcmos, AM-P-LA, 1B and 2 The ammonium hydroxide and hydrazine feed pumps (Table 18) are simplex diaphragm, positive displacement type pumps of cas t-tron and
.316 S.S. respectfully; with a capacity of 15 gph at 180 psig.
Each pump is equipped with an external relief valve set at 250 psig,
~
pneumatic s troke adjustor, suction strainer, manual sucti.cn and discharge valves.
The hydrazine feed pumps (AM-P-1A and 1B) supply hydrazine to the Condensate cnd Feedwater System (refer to System Description, Index No. 7A)
?r oxygen control and the ammonium hydroxide feed pump ( AM-P-2) supplies ammonium hydroxide for pH control by transferring there c emicals from their respective feed tanks to the feedwater at the effluent line of the condensate polisr.ers.
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 Hvdroxide Mix Tank, AM-T-7 The ammonium hydroxide mix tank (Table 19) is a vertical, cylin-drical tank used as a spare source of ammoni n hydroxide for feedwater chemical treatment if the ammonium hydroxide feed tank ( AM-T-1) and/or the acr.. onium 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.
Lire s. are provided. for aqueous ammonia injection, venting, draining, demineralized water for dilution, sampling and chemical discharge.
The tm k is provided with local level gauge.
1 3D'd
1.
-.c.
The ammcnium hydroxide mix tank is located in the Turbine Build-ing at elevation 281' - 6".
2.1.17 Ammonium Hydroxide Mix Tank Pt$mp, AM-P-3 The u::monium hydroxice mix tank pump (Table 20) is a simplex diaphragm, positive displacement type pump with a capacity of.I. 0 gph at 275 ps ig. The pump is equipped with manual suction and, discharge valves and a discharge check valve.
The purpose of the pump is to transfer ammonium hydroxide from the ammonium hydroxide mix tank to the condensate polishers ef fluent piping.
The pump is driven by a 1/6 hp mctor.
Pump control and indica-tion is local.,
The pump is powered f rom MPT-1A.
A local "ON-OFF" control switch with overcurrent trip is provided.
The ptmp is located in the turbine Building at elevation 281'-6".
2.1.18 Maior System Valves
- ai Condensate Polishina Tanks Influent Valves M81 and M81BY throuch All and MllBY for Tanks CO-K-1A throuch CO-K-lH 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 across 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 operat-d 12a butterfly valve with positioner indication
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, 7
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- v s
4 used to balance the condensate flow.
These valves are controlled locally or from the Condensate Polisher Control Panel. Air is supplied from the Service Air Syctem.
These valves fail as-is on loss of power or air-Condensate Polishina Tank Reevclina Valves, M86 throuch M16 for Tanks CO-K-LA throuch CO-K-lH and MC-Z 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 condent er.
Additionally, a pneumatic moto_ operated 3" ball valve is provided to isolate the condensate polishing system from the "H condenser.
These valves are controlled locally or 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 _cf air..
Ja i m.
Condensate Polishinc Tank Resin Transfer Valves, M83, M84, M85, M88, hnd M89 throuch M13, M14, M15, M18, and M19 for Tanks CO-K-LA throuch CO-K-lH Each polishing tank has the-following pneumatic ball valves to transfer resins to the regeneration tank -(CO-T-2) and receive resin from the mixing 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 autcmatic regeneration transfer cycle.
Air is sup-plied from the Service Air System.
Thesevalve,20 !?li z>
s faib as-is on loss
?f of power or air. i
. -.,~.,T:s{.., m -.-
.1 3 -g ca v_;
Receneration Tank Resin Regeneration Valves, C1, C2, C3, C 5, C6, C7, C8, C9, C10, Cll, C14, C15, C16, and C17 The regeneration tanl-has tha following 1254 diaphragm doubre act-ing operator to transfe.r and regenerate resin:
a.
resin in
~ ' - Cl, 2 b.
resin return
-.. - CI 5, 2
.(from mixing and -storage tank) c.
air in
- Cll, 1",
and C6, 2"
d.
sluice water
- C16, 1
- C14, 3",
and CS, 3",
C7, 2"
e.
ammonia injection
- C17, 1",
and C2, 1 f.
dilute caus tic in
- C9, 2"
g.
dilute acid in
- C3, 2"
h.
resin out
- C8, 2 i.
sodium sulphite in
- C10, 3"
- .q These valves are controlled from the Condensate Polisher Con-trol Panel and can be~ manually or automatically 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, SS, S7, S8 and S9 The mixing and st tage tank has,the following 125# diaphragm double acting operator valves to rinsa, mix and transfer recin:
a.
air in
- S1, 14 -'
37.
2" b.
sluice water in
- 55, 3 ", S9, lh" c.
resin out
- S8, 2 These valves are controlled from the Condensate Polisher Control Panel and can be manually or automatically actuated for a final 311 _
.~
~
rinse cycle.
Air is supplied from the Service Air System.
These valves fail closed on loss of power or air.
Chemical Injection Valves, RlP_throuch R12P The chemical infection lines teed to sluice water lines have 125# diaphragm double acting operator controi valves either to dilute and~ route chemicals to the regeneration tank (CO-T-2) or to route concentrated chemicals to the neutralization tank (WT-T-9).
The following groups are associated with each chemi-cal injection:
a.
Acid injection, RlP through R4P b.
Caus tic injection, R5P through R8P c.
Sodium sulphite injection, R9P through R10P d.
Ammonia injection, RllP and R12P 2
These valves are controlled from the Condensate Polisher Control Panel and can be man tally or au*.c.natically actuated for a regeneration cycle.
Air is supplied from the Service Air System.
These valves require air to open and close except 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 Was te Discharge Valv es, C4, C12, Cl3, S2, S4, S6, S10, X1, and X2 The regeneration liquid wast have the following 1254 diaphragm double acting operator control valves to route these wastes to either the drain pot or to the high conductivity regeneration waste discharge line:
226 "3S5E
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- ~... *
~
_..: :. : '- 3 y'v 4-L 3.'-
s a.
air to drain pot
- C12, 2" and S2, 2"
b.
regeneration tank wastes
- Cl3. 3 " and C4, 3"
~
c.
mixing and storage tank wastes
- S4, 3 " and S6, 3"
d.
sluice water
- 'SIO, 2"
e.. drain pot' transfer valve
- X1, 3" f.
regeneration waste transfer valve - X2, 3"
These valves are controlled fram 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-E-
tion valves are used to route regeneracion waste with high conductivity to the neutralization tank (WT-V-118) or to the miscellan'eous 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-1-18 and open valve WT-V-119.
A local control switch i s provided to override the radia-tion monitor and open or shut either valve.
These valves fail closed on loss of power or air.
9-)f
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~
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~
s Regenerant Surno Ef fluent valves WT-V.-lL5 and WT-V-121
~
Two 4 inch, 150 Ib ANSI, 200 F, diaphragm operated, two posi-tion valves -are used to coute the discharge from the Conden-sate Polisher Regeneration sump pumps either to the mechani-cal d af t cooling tower (WT-V-115) or.to the miscellaneous waste hold-up tank (WT-7-121), if the radioactivity level of the solution is hign.
These valves are controlled by a radia-tion detector (WT-R-389 5) which monitors the radioactivity level of the regeneration sump pump discharge.
If the radio-activity exceeds the set point, the radiation monitor con-trol will shut valve WT-V-13 5 and open valve WT-V-121.
A local control switch is provided to override the radia ti on monitor and open or shut either valve.
These valves fail closed on loss of power or air.
- r. ;
~.
Miscellaneous Valves Valve MC-1 As a 2 inch pneumatic actuated valve used to drain the condensate polishing tanks to the condensate polisher re-generation sump.
Valve BV-1 is a 2 inch pneumatic actuated valve controlled by thermostat (CS-TE) and used to regula te 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 reyeneration station.
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2.2 Instrwments, Controls, Ala ms, and Protective Devices LInstrumentation is provided locally ancI at the condensate Polisher. Control Panel for' monitoring the operation.of the
~
A system.
Full control'of all functions in the condensate polishing system is-possfble fran the Condensate Polisher Con-trol Panel, '_which =also contains process cont'rol ins trumenta tion and a graphic representat.on 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 ir. fluent and effluent conductivity is continuous-
- j
f ly monitored with the system in seLvice.
Flow orifices (IH-FE and OH-FE), flJw. transmit ters (IH-FT and OH-FT), and flow recorders IIH-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.
226 3355 jg[~ :
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A mixed bed res2.n bed,.as previously mentioned, is exhausted '...
when.a predetermined' measured' total flow has passed through
- a. polishinchitank, a high preNsure drop occurs across the sys-tem, or when the tank. effluent conductivity exceeds a pre-determined allowahle level.
Each condensate polishing tanE
_c_
has a ficw orifice, transmitter, and recorder point to mea ~
sure, 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 redin traps to monitor tank and trap pressure drop.
. ~
~
'Li Resin Transfer and Receneration Cvele 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 (RJ-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.
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The two pen.ce6ducti.. rity recobder, with three points for each pen',~.. f;
.on the. Condensate Polisher Control Panal Indicated the conductivity
~
of chemicaJ.. waste in the regeneration and. mix and storage tanks.
.An identica1.I.two pen-reenranr is" provided. for. conductivity indicatica i
~
in..the dilute a'cid. and ' dilute caustic. lines 4,
e3
..c q 7
e The regeneratica waste ccnductivity instrument centrois the diversion
- of chemical. ' waste (higd ccaductivityJ' ~ to - the neutralizer t ank,. ancL
' other _ waste ~ watar (low conductivityT to the water treatment sump through the operatica of two pneumatically operated valves.
The controls of the regenerating st ation of "ATC" Timers, relays and pneumatic solenoid valves.
The 1ergth of each step in the regeneration sequence (which can be fully auto.natic except for resin exchange) is determined by adjustable individual step timers.
At the end of the allotted time for an 1.ndividual step, the timer energizes the next timer for the following step.
Temperature control,of caustic dilution water is maintained by a d
thermostat placed in che hot water tank and a temperature element (CS-TE) monitoring the dilate caustic and controlling the blend valve which mixes the hot and cold water to maintain 12O F.
O C_ondensate Polisher Sumo Pumos Control Level control of the sump pumps is provided by local "OFF-AUTO-START" control switches (spring return to AUTC).
In " AUTO", level switches (WT-LS-3884-1, 2 &3) monitor sump level and start a lead pump on high level.
A high high level starts the standby pump and ala ms 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.
C_ondensate and Feedwater Chemical FE.ed Control The automatic controls for the ammonium hydroxide and hydrazine subsystem are provided from the Secondary Sampling System (Refer tc S.D. Index No. 12).
A pneumatic to electric converter is 9)0 h-uw
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9 q-
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provided in. the Make' p' Water. Trea.tment Control Panel and a
~
u contr' r switch for; pump controls except for
" HAND-OFF-AUTO" o
ammonium hydroxide mix!. tank pump. (AM.-P-3 }- which is locally con.troIIed wi~th an "ON P b swl'tek. ~_
~
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.e 5,
Radioactive Waste Discharge Control c-A radiation monf' tor-is' pro'vided"in the discharge waste line i mm the Condensate Polishing Regeneration Station to the Neutraliza-tion Tank (WTR-R-3894) and from the Condensate Polisher Regen-eration Sump discharge line to the Mechanical Draft Cooling Tower Blowdown (WT-R-3 89 5).
The radiation monitors provide input signals to the indicating controllers (WT -RI & FHS-3894
~
& 3895) to reposition control valves wr-V-118/119 & 115/121 to route the waste effluent to the Miscellaneous Waste Hold-Up Tank on exceeding their setpoints.
ni Alarms The alarms provided on the Condensate Polisher Con trol Panel are listed in Table
- 21. There is a common a?. arm " 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 Panel.
Protective Devices The hot water tank is equipped with a 3/4" high pressure
. relief valve PSV-3 set @ 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 di.splacement chemical pumps are fi.tted with dis-ch.irge relief valves set at 40 psig.
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' o Ehe polishers are provided Area radiation monitors > adjacent t
as an early indication of a radioactive build-up in the pol-iahers: due to primary to secondary leakage in:the steam gener-
.hadiat[on honitors monitor radioactivity levels ator tubes.
in
~
the ~ reseneratiori wasteE 5.i es to the neutraliration tank ar.d
~ -
7,.
from the condensate polisher regeneration sump discharge line.
- e..
~
3.0 PRINCIPAL MODES OF OPERATICN 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 perallel 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 t.'e con-denser.
Initially, with the given startup influent condensate water analysir (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 taak.
The automatic re-generation sequence may not be initiated for sodium sulphite addition, soak, rinse.and backwash.
At this point, an alarm annunciates completion of this portion of the regeneration vycle.
The resin is now transferred to the mixing and storage tank for air mixing, rinsing, and storage as a spare
} ') [3 resin bed.
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. /t The condensate and,feedwater chemical feed i.s started up by turning on a hydrazi.ne and ammonium hydroxide pumps on AUTO.
The-chemical feed tanks are fi.rst fi.lled i.ncluding t_ne measur-
~
ing tanks. 'The pops-are controlled from Recorder L Analyscr-I d Panel 310t. (refer ta4 Secondary -Plant-Sampling System Description Index No. 121.
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~
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-- x 3.2 ^
Normal Ooera tion
~
~ ' " ~ ~ '
' ~ '
During normal operation, 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 water analysis (Table 1) a polishing unit will average 160,000 gallons per cubic foot of re'si'n before chemical cleaning and chemical
~
regeneration will be required.
Manual trm sfer of the resin and sodium sulphite soaking is performed as described in Section 3.1.
Af ter completion of the sodium sulphitC portion of the regeneration cycle, automatic push button selection is available for caustic injection, rinse, acid injection, and displace-aent.
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 us a spare resin bed.
[The hydbogen regene~ ration 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 he normally peiformed automaticalJ1.y as N
27/0 M
selected.
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The total amount of sluice water ' required for a hydrogen re-
' generation-cycle i.s approximately 20,000 gallons; for an ammon-iated regeneration cycle,. the total amount is approximately
~
40,000 gallons.
The jxiak rate c emanded is approximatelv
~
~
.200 gpm..
..J n r.
~
The condensate and. fee.dwater chemical addition subsystem is nornially.2 n-service--with[one of two hy-irazine pumps on. and the
~~
ammonium hydroxide feed pump on wrth both controlled from the secondary plant sampling system.
A hydrazine and an ammonium hydroxide mix tank pump are available for nanual backup.
3.2 Shutdown The condensate polishing units are in operation as long as a condensate pump is in operation.
When all condensate /Conden-sate booster pung pairs have been stopped, the influent and effluent valves - to the condensate polishing tanks are closed.
The t anks 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 condencste/ condensate bcoster pump pairs, have been stopped, the hydrazine and ammonium hydroxide chemical feed pumps are stopped.
3.4 Soecial or Infrecuent Oceration 3.4.1 Resin Removal and Recl2cem-The demineralizing ability of the polisher resin diminishes through continuous use and t.hrough mechanical abrasion from transfer of the res.. during regeneration.
When a resin bed is no longe _
capable of demineralizing the conden. sate efficiently,.. t is re-moved through a blank tee at the regeneration tank and disposed of via the TMI I solid radwaste disposal system.
A new resin bed is added through the same tee connection.
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If an undercL'.ain. screen breaks in a condensate polishing tan.c.
ther resin wit 1 ~,be trapped in a resin trap which prevents the
~
resin' from getting-intoi-tlia'feedwater and condensate systers.
' E
- ~
An, alar:z for.high, differenM a ? pressure across the resin trap
_~
- wil.1 sound whc.x sufPie icnt resin has 'been carried into the trap.
~
'Tha polisher is'to;be taken out of service immeMately -and. the.
t underdrain screen must Tse-repaired.'.
~
~
c 4.0 HAZARDS AND PRECAL7IONSL 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 cperating level immediately because the high conduc-tivity effluent wi.l.1 contaminate the Condensate and Feedwater System.
n, 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 ltncs 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 525 At such a concentration, caustic soda water solution starts to crystallize at approximately 70 F.
Precautions 0
should be taken so that the temperature of the tank and piping 0
0 rena ms above 75 F and below 100 F.
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. TABIE I D7 FLUENT CONDENSATE WATER ANALYSIS
?
~-
a.
.2... - -,
41-
~.
EXTENDED NCRMAL ' OPERATICN'- (cob)
Fe (Soluble)
~~
~~ S 40
'Fe (Insol.)
20 1000 Cu (Soluble) 5 50 Cu (Insoluble) 10 500 Heavy Metals 0
0 Cl 5
100 10 500 Si 02 pH 9.5 9.5 Conductivity (. unhos )~
10.
10
~~
Total Solids 60 60-3000 (Normally 200) e g
'as s
~
W
s a
- +
w, 1
r t
g.
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1 r-EFFLUENT CONDENSAh' WATER QUALTI"E
.s
~
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 Tota 1 Copper (AS Cu), ppb 2
Total Heavy Metals, ppb 0.0 Sod ium, ppb 20
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CONnFNSATH POLISHING TANKS
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2
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IdentiMrntica ' -
CO-K-IA to CO-K-lH
_...I Number inntalled eight
~
Vend.or L*A Water Treat =ent Company
- - ~
Design pressure,. psig--
~
'~20 0
~
Design temperature, P
200 Design flow rate, gpm 2,487 Size, diameter x height 8'
x 5' L ining, rubber, in.
3/16 Material Carbon Steel Thickness, in, 11/16
- Manhole, I.D.,
in.
21 Design Code Section VIII, ASME Code for Unfired i Presrure vessels, 1971 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, bsig 200
~
Desig:r Pressure -Drop.
~
Clean, psig-'
5.
[
- C la ss i.ficatiort r
Code-
~~
~
-)?$"_
C u v. -
Cleanliness a.
Quality Control 4
Seismic II :s a
t,
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. MIXED MT1 RESLN
~,,.
-No. or Charges'.
9
~~
~-
y-
- '
- 'otal. Volume /Ciargeg.ft..,..
147
.~
. Cation. Resin 200 C Amberlite
~~
Cation volume, ft 8 '.
Resin Size, mesh 40 Regenerants H S O.,+ ; NH 2
4 Introduction Strength 8% H.,50, ; -6% NH4 n
Anion Resin 900 C Amberlite Anion Volume, ft 66 Resin Size, mesh 40 Regenerants Na CH NH,,
Introduction Strength 4% NaOH; 6% NH 4 Temperature Max.,
F 140 Operating Temperature, F 135 Reducing Agent Na SO 2
3 Introduction Strength 4% Na SO 2
3
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. 's REGENERATIOZI TANK.
w_,
. -; v 2
.s Idantifitation
'~
^
CO-T-Z-2.
., -e..'
..' g. _ -
t Number - Insta l l ed 1 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
---4 Design Code Section VIII, ASME Code for unfired pressure vessels, 1971 Code Stamp Yes Classification Code C-Cleanliness B
Quality Control 4
Seismic II 4
e.
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i TABLE 6 MIXING AND STORAGE TANK Identification CO-T-3 Nun aer Installed one Manufacturer 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, 117h Code Stamp Yes Classification Code C
Cleanliness B
Quality Cer. trol 4
Seicnic II qqf rc+r_
(. _ U
'P=2 3R1 :
TABLE 7 HOT WATER TANK Identification Co-T-4 Number 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, 37, 60Hz' Power Source MCC 2-31D Classification Level Code C
Quality Control 4
7/
s--
Seismic II O M, M3 Cleanliness B E
TABLE 8 ACID STORAGE TANK Identification WT-T-7 Vendor L*A Water Treatment Co.
Capacity - gallons 6,400 Installation One Outside diameter length 8'-0" x 15'-0" Shell Material Carbon Steel Lining, Key site #100, mils 6
Shell Thickness, ia.
3/8 U
Design Temperature, F
Design pressure, psig lo Corrosion allowance, inc.
Design code ASME, Sections VIII & IX, 1971 Code Stamp required No Classification Level C ode C
Ouality Control 4
Seismic II Cleanliness D
., ~
33o TABLE 9 ACID POLISHER PUMP Pcmo Details Identification WT-P-14 Number Installed one Manufacturer Chemcen Model No.
Il60-A20-135 Type S implex, diaphragm Rated Speed, stroke. / min.
135 Rated Capacity, cph 130 Rated Discharge Pressure, psig 30 Design Pressure, casing, psig 50
5 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,35, 60Hz, 3 amps (Full Load Current)
Power Source MCC 2-31D 6 33/
TABLE 10 CAUSTIC STCRAGE TANK Identification WT-T-8 Vendor L*A Water Treatiaent Co.
Capacity - gallons 6,400 Installation one Outside diameter x length 8 ' -0 " x 15 ' -0 "
Shell Material Carbon Steel Thickness, in.
3/8 Lining, Keysite #740, m.'. i s 12 Shell Temperature, F
Design pressure, psig 10 Corrosion allowance, lu, Design code ASME, Sections VIII & IX, 157)
Code Stamp required No Heater Manufacturer Chromalox Type Immersion Model No.
TM SS-3060SSLT Capacity, Kw 5
Power Requirements 480V, 3d, 60 Hz Power Source MCC 2-31D Classification Level Code C
Qualit'r Control 4
2?{ 33 1 Seismic II u
Cleanliness D E
TABLE 11 CAUSTIC POLISHER P U'4P Pumo Details Identification WT-P-13 Number Installed 1
Manufacturer Chemcon Mcdel No.
1160-316SS-135 Type Simplex diaphragm Rated Speed, strokes / min.
135 Rated Capacity, gph 160 Rated Discharge Pressure, psig 30 Design Pressure, Casing, psig 50 Design Temperature, F
- .q Lubricant / Coolant Oil / Fluid Min. Flow Requirements, gpm 0
Motor Details Manufacturer G.E.
Type Induction Enclosure D.F.
Rated Hcrsepower, hp 1/2 Speed, rpm 1,800 Lubricant / Coolant Oil / Air Pouer Requirements 480V, 30 6C:;2, 3 Amps (Full load current)
Power Source MCC 2-31D 5
33
TABLE 12 AQUEOUS AmtCNIA STCRAGE TANK Identification AM m-6 Vendor' 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 U
Design temperature, F
Design pressure, psig 10 Corrosion Allowance, in.
,c; Design Code ASME, Sections VIII & IX, 197 Code Stamp required No Classification Level Code Q
Quality Control 4
Seismic II Cleanliness D
'~d 33
_el_
TABLE 13 AQUEOUS A14MONIA PUMPS Pumo Details Identification AM-P-4A, 4B, and 4C Number installed 3
Manufacturer Chemcon Moder 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; oF Lubricant /C oolant Oil / fluid
- in. Flow Requirements, gpm 0
Motor Details Manufacturer Type.
Induction Encic sure TEFC Rated Horsepower, hp Speed, rpm 1,725 Lubricant / Coolant Oil / Air Power Requirements 480V, 35, 60Hz Pcwer Source MCC 2-31D W
e i
TABLE 14
, SODIUM SULPHITE FEEDER AND STCRAGE TANK Identification WT-M-1 & WT-T-ll Number installed one Manufacturer Wallace & Tiernon Model A-728 Capacity, gallons / tank 50 cubic feet / feeder 13 Size, diameter x height 3 ' -0 " x 3 ' -0 " & 2'-6" x
2'-0" x 3'-8" Feed rate, cu. ft./hr.
18.1 Mi::er Type Induction Rated Horsepower, hp 1/4
'i '
Enclosure D P 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 Elassification Cod 2 C
Cleanliness Class D Quality Control level 4
( ).
' 'O Seismic Class II
{g,.
[ABLE 15 SCDIUM SULPHITE PUMPS Pumo Details Identification 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
Cated Discharge Pressure, psig 30
- ~-
.L.
Dest;n Pressure, casing, psig o
Design Temperature, F
Lubricant / Coolant Oil / Fluid Min. Flow Requirements, gpm Motor Details Manufacturer Type Induction Enclosure DP Rated Horsepower, hp 3/4 Speed, rpm 3500 Lubricant / Coolant oii/gir Power Requirements 480V,36, 60Hn Power Source MCC 2-31D
.[' )..
337 :
TABLE 16 CONDENSATE POLISHER REGENERATION SUMP PUMPS Pumo Details Identification WT-P-19A & B Number Installed Two Manufacturer Crane - Deming Model No.
3 MD Type Vertical, duplex Rated speed, rpm 1745 Rated Capacity, gpm 200 Rated Total Dynamic Head, ft.
80 Design Pressure, Casing, psig 225 o
Design Temperature, F
25G Lubricant / coolant Oil / fluid Minimum Flow Requirements, gpm 40 Motor Details Manufacturer Westinghouse Type Induction Enclosure D'
Rated Horsepower 10 Speed, rpm 1800 Lubricant / Coolant Oil / Air Power requirements 480V, 35, 60 Hz, 13.Sa-F.L.C Power source 2-31A/41A Classification Level Code C
Quality Control 4
Seismic II Clean?fness D
r*
\\U
-4 5 -
TABLE HYDPAZINE FEED AND MEASURING TANKS _
Measurina Feed Iden ti fica tion AM-T-4 AM-T-1
- Ammonium Hydroxide AM-T-5 AM-T-2
- Hydrazine L*A Water Cond. Co L*A Water Cond. Co Vendor Two Two No. Installed 6
150 Capacity, gallons 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 Design temperature, F
200 o
Atemspheric Design pressure, psig ASME Design Ccde No Code Stamp required Level classification Code 4
Quality c.ontrol II Seismic D
Cleanliness 0
4 h, i
TABLE 18 AMMONIUM INDROXIDE AND HYDRAZINE FEED PUMPS F -ino Details HYDRAZINE AMMONIUM HYDROXIDE Identification AM-P-1A, B AM-P-2 Nunber Installed
- Two, One Manufacturer Chemcon-Model No, 1130-316SS-90 ll30-CI-90 Type Simplex Rated Speed, strokes / min 90 Rated Capacity, gph 15 Rated Total Discharge Pressure, psig 180 Design Pressure, casing, psig 250 Design Ten perature, OF 200 Lubricant / Coolant
~
O_il/ Fluid
~
M4n. Flow Requirements, gpm 0
Motor Details Manufacturer Reliance Type induction Enclosure TE Rated Horsepower 1/4 Speed, rpm 1725 Lubricant
.n t
. O.iJ./ Air Power Requ ir..aents
' * * ~ *'
Power Sourct:
Panel 305 2QO_
226 gp
-4 7 -
F TABLE 19 AMMONIUM HYDROXIDE MIX TANK AM-T-7
- dentification B&W
/endor One iumber Installed 60 Jrnacity Vertical Installation 24"x30" Dutside diameter and length Type 304 S.S.
Shell material 3/16 Shell thickness, in.
Buffalo Tank Manufacturer 150 Design Temperature Atmospheric Design pressure, psig.
Non Code Design Code C-ie Stamp Required
~
... no J{;
Level Classification C
Code 4
Quality Control II Seismic D
Cleanliness 34/
226 a ;
TABLE 20 AMMONIUM HYDROXIDE MIX TANK PUMP
.amo Details Identification
- AM-P-3 Number Installed Cne Vendor
- B&W Manufacturer Lapp Model No.
_ LS-5 Type
, Positive displacement Rated Speed, strokes / min.
44 Rs red Capacity, gpm
__ l.0 R ited -Discharge Press.~, psig 275 Design Pressure, casing, psig 500 Design Temperature, F
_70-120 Lubricant / Coolant Oil / Fluid Min. Flow Requirement, gym _
3 J;jj Motor Details Manufacturer Baldor Electric Co.
Type Induction Enclosure TEFC Rated horsepower
, 1/6 Speed, rpm 1725 Lubricant / Coolant
, Oil / Air F m'er Requirements 120V.. I f, 60 Hz, F.L.C.-4.4a 1
=r source
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TABLE 21 (CONT'O.)
' i, Alarm Input Variable Windcu Measured Variable, Units Setpoints Source Range 2-1 Iligh Di.fferential Prescure, psi 45 DPR-UC 0-100 psi 2~
2A-Poli.Wer Low Flow, gpm Field set FRl-WC 0-30(X100)gpm 2-3 2A-Polisher Exhausted FT-WC 0-960 counts 2-4 28-Polinher Low Flow, gpm Fill-WC 0-30 (X100) g pm 2-5 2B-Polisher Evhausted FT-WC 0-960 counts 2-6 2C-Polisher Low ? low, gpm FRl-WC ~ 0-30(X100)gpm 2-7 2C-Polisher Exhausted FT-WC 0-960 counts 2-8 2D-Polisher Low Flow, gpm FRl-WC 0-30(X100)gpm 2-9 2D-Polisher Exhausted FT-WC 0-960 counts 2-10 Mix & Storage Tank Iligh Conductivity, l.0 CR-WC 0-SMM/cm Micrombos 2-11 Caustic Concentration Fault 4% 10-6% hiFRl-WC 0-10%(NaOll) t 2-12 2E-Polisher Low Flow, gpm field set FR1-WC 0-30 (X100) g pm 8
2-l' 2E-Polisher Exhausted FT-WC 0-960 counts 2-14 2F-Polisher Low Flow, gpm F'1-WC 0-30 (X100) g pm 2-15 2F-Polisher Exhausted FT-WC 0-960 counts 2-16 2G-Polisher Low Flow,gpm FRl-b, 0-30 (X10))) g pm 2-17 2G-Polisher Exhausted FT-WC 0-960 counts 2-18 211-Polisher Low Flow,gpm FRl-WC 0-30(X]OO)gpm 2-19
')ll Dolisher Exhausted FT-WC 0-960 counts 2-20 Condensate Polisher Sump Level :lligh, in.(from 16 WT-LS-3884 top 6f sump) 0-31" Reference L*A Water Conditioning Co. flow diagrams D4519 and D4522.
N N
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.