ML20206U761
| ML20206U761 | |
| Person / Time | |
|---|---|
| Site: | Three Mile Island  |
| Issue date: | 09/26/1986 |
| From: | GENERAL PUBLIC UTILITIES CORP. |
| To: | |
| Shared Package | |
| ML20206U755 | List: |
| References | |
| 1551B-LC, SD-3520-010, SD-3520-10, NUDOCS 8610080346 | |
| Download: ML20206U761 (28) | |
Text
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ENu21 ear s o 3s20 010 aEv 1 ISSUE DATE October 1,1986 O ITs O usn
@ NITS DIVISION SYSTEM DESCRIPTION FOR Processed Water Storage and Recycle System COG ENG 4% D PM DATE *1"'86 +
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ENuclear 3520-0101 Title Page 2 of Processed Water Storage and Recycle System
SUMMARY
OF CHANGE Approval Date R e.v .
1 Incorporated changes in the system description to reflect g,/,### 10/86 changes to P&ID 2-M74-PW-01. Changes include deletion of the connections to the demineralized service water system, containment decontamination water supply system, evapora-tor condensate test tanks, RC evaporator, and Unit I liqui d waste disposal system; and connections from the deminera-lized service water system, resin trap, waste transfer pumps, and EPICOR II transfer pump. Incorporated ECA 3524-85-259. Added Tables 4 and 5, Instrument and Valve Lists.
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SD 3520-010 TABLE OF CONTENTS 1.0 DESIGN DESCRIPTION .............................................
1.1 Summary ..................................................
1.2 References ...............................................
1.3 Detailed System Description ..............................
1.4 System Performance Characteristics .......................
1.5 System Arrangement ................................'.......
1.6 Instrumentation and Control ..............................
1.7 System Interfaces ........................................
2.0 SYSTEM LIMITATIONS, SET POINTS, AND PRECAUTIONS .......'.........
3.0 OPERATIONS ..............................................'....... >
3.1 Initial Fill .............................................
3.2 Startup ..................................................
3.3 Normal Operation ........................................
3.4 Shutdown .................................................
3.5 Draining .................................................
3.6 Refilling ................................................
3.7 Infrequent Operations ....................................
3.8 Transient Operations .....................................
4.0 CASUALTY EVENTS AND RECOVERY PROCEDURES ........................
4.1 Casualty Events ..........................................
4.2 Design Features to Mitigate Effects of Casualty Events ...
4.3 Recovery Procedures ......................................
5.0 MAINTENANCE ....................................................
5.1 Maintenance Approach ....................................
5.2 Corrective Maintenance .. ................................
5.3 Preventive Maintenance ...................................
6.0 ACCEPIANCE TESTING .......................................... ..
APPENDIX A ..........................................................
Table 1 Processed Water Storage Tanks Table 2 Processed Water Transfer Pump PW-P-1 Table 3 Processed Water Transfer Pump PH-P-2 Figure 1 Processed Water Transfer Pump PW-P-1 Performance Curve Figure 2 Processed Water Transfer Pump PW-P-2 Performance Curve Table 4 Instrument Index Table 5 Valve List Page 3 15518 LC
SD 3520-010 SYSTEM DESIGN DESCRIPTION 1.0 DESIGN DESCRIPTION 1.1
SUMMARY
The primary function of the processed water (PH) storage and recycle system is to collect processed water from the Auxillary Building Emergency Liquid Cleanup System (Epicor II). The system also functions to collect processed water from the Submerged Demineralizer System (SDS) feed and monitor tank system. Secondary system functions are as follows:
- a. Provide a source of processed water makeup for various tanks (e.g., BWST, WDL-T-9A/95, FTC, SFP "A", etc.)
- b. Provide a source of processed water inside the R.B. via penetration R-565.
Unless there is a component failure or inappropriate operator action, there is no direct liquid release pathway to the environment from the system.
Processed water system components include storage tanks, transfer pumps, and associated instrumentation, piping, and valves.
1.2 REFERENCES
1.2.1 Piping and Instrument Diagram (P&ID), Processed Water Storage and Recycle System, Drawing 2-M74-PW01.
1.2.2 General Arrangement / Area Piping, Processed Water Pump House, Drawing 2-P0C-9021.
1.2.3 Piping and Instrument Diagram (P&ID), SDS Feed and Monitor Tank System, Drawing 2-M74-SDS01.
1.2.4 Burns & Roe Flow Diagram, Auxiliary Building Emergency Liquid Cleanup System, Recovery Drawing M006.
1.2.5 Piping and Instrument Diagram (P&ID), Demineralized Service Water System, Drawing 2-M74-DW01.
, 1.2.6 Piping and Instrument Diagram (P&ID), Containment Decontamination Water Supply System, Drawing 2-M74-CDW01.
1.2.7 Burns & Roe Flow Diagram, Radwaste Disposal Reactor Coolant Liquid, Drawing 2027.
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SD 3520-010 1.2.8 Burns & Roe Flow Diagram, OTSG Chemical Cleaning System, Drawing 2606.
1.2.9 Piping Line Specifications, Standard 15737-2-P-001, 1.2.10 Piping Line Index, Standard 15737-2-P-002.
1.2.11 Master Valve Log (Burns & Roe).
1.2.12 Recovery Facilities Plan, Drawing 2-C0A-000).
1.2.13 Technical Specification for Field-Erected Processed Water Storage Tanks, Document 13587-2-C-141.
1.2.14 Division I System Design Description of the Processed Water Storage and Recycle System, Document 15737-2-M72-PH01.
1.2.15 Instruction Manual, Processed Water Transfer Pumps, 4 Document 13587-2-M-080C-00021-01.
1.2.16 Division II System Design Description of the SDS Feed and Monitor Tank System, Document 157372-M72-SDS01.
1.2.17 Preliminary System Description, Recovery Program.
Auxiliary Building Emergency Liquid Cleanup System.
1.2.18 Instrument Index (Bechtel), Document 15737-2-J16-001.
1 1.2.19 Logic Diagram, Processed Hater Storage Tanks Heaters, I Drawing 2-J77-PH01.
1.2.20 Logic Diagram, Processed Hater Storage Tanks High Level Alarms, Drawing 2-J77-PH02.
l 1.2.21 Logic Diagram, Processed Water Transfer Pumps, Drawing 2-J77-PH03. ;
1.3 DETAILED SYSTEM DESCRIPTION l
1.3.1 Process System Flowpaths (See Reference 1.2.1) l The PH storage tanks, PH-T-1 and PH-T-2, collect processed water from EPICOR II and the SDS feed and monitor tank system. Processed water is transferred from EPICOR II via EPICOR II transfer pump ALC-P-5. The pump discharge line is routed from the chemical cleaning building to a common crossover inlet line to the storage tanks in the PH pump house (see Section 1.5). Isolation valves PH-V003 and PH-V004 on the crossover line permit selection of either tank for filling. The PH/EPICOR II system interface is in the chemical cleaning building.
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SD 3520-010 The EPICOR II effluent line also functions as the flow path to recycle processed water to EPICOR II for further processing.
The SDS feed and monitor tank system transfer pumps, SDS-P-1A and SDS-P-1B, are used to deliver SDS processed water to the storage tanks. The PW system interfaces with the monitor tank transfer pump discharge header,at valve PW-V039 in the Unit 1/ Unit 2 corridor. From PW-V039, the effluent line is routed to a common crossover tank inlet line in the pump house, which contains isolation valves PW-V007 and PW-V008, to permit selection of either tank for filling.
4 Each of the storage tanks contains a drawoff sump to allow complete draining of each tank. Tank drain lines are double isolated and tee into the tank overflow lines. The common tank overflow line is routed to the chemical cleaning building sump.
Processed water transfer pumps PW-P-1 and PW-P-2 are used to transfer water from the PW storage tanks. Each transfer pump is provided with a separate suction line and startup strainer (PW-S-1 and PW-S-2). The suction lines are manifolded such that each tank may be used as a source of water for either transfer pump, excluding simultaneous pump operation when cross matching tanks and pumps (PW-T-1 and PW-P-2 and PW-T-2 to PW-P-1).
Connected to the manifold is a 6-inch line routed from the pump house to the Unit 1/ Unit 2 corridor where a valved / flanged connection is provided for future use.
Therecirculationlinehasadoubleisolatedsamplelinel connection which is directed to the sample sink in the pump house. The sample sink drain line discharge into the common overflow line from the storage tanks.
Transfer pump PW-P-2 is used primarily for tank recirculation. A restriction orifice, PW-U-2A, is provided in the tank recirculation to ensure the correct tank recirculation flow is obtained and to prevent pump runout. A portion of the line also functions as the minimum flow bypass line for pump PW-P-2. Valve PW-V076 is provided upstream of orifice PW-U-2A to direct flow through the minimum flow bypass line which contains orifices PW-U-28 and PW-U-2C in series. Transfer pump PH-P-1 is provided with a minimum flow bypass line with series arranged orifices PW-U-1A and PW-U-18. The l minimum flow line of transfer pump PW-P-1 and the minimum i flow / tank recirculation line of pump PW-P-2 tie in to a l tank inlet manifold. The inlet lines extend into the tanks and contain two mixing eductors per tank.
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SD 3520-010 The transfer pumps are provided with separate discharge lines and a common crossover line. The main processed water discharge header is routed from the pump house,-
through the yard, and into the Unit 1/ Unit 2 corridor.
The other pump discharge header ties in to the EPICOR II effluent line in the pump house between valves PN-V003 and PH-V004. The main header ties in to the 4-inch OTSG chemical cleaning system line in the Unit 1/ Unit 2 corridor. The OTSG line is modified with processed water (PH) system piping added to allow PH to be transferred through the primary containment piping penetration R-565.
1.3.2 Major System Components 1.3.2.1 Storage Tanks (See Appendix A, Table 1)
Two 500,000-gallon storage tanks (PH-T-1 and PH-T-2) are located in the yard (refer to Section 1.5). The tanks are atmospheric via open-ended 12-inch roof vents, and are non-Seismic Category I. Mixing of tne liquid within the tanks is accomplished by pump recirculation and an eductor system. The mixing system provides representative sampling capability by recirculating the equivalent of three tank volumes in approximately 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
Each tank contains two 3-inch Schutte and Koerting Co. Type 268 eductors and associated internal piping and supports. The eductors are fully submerged at elevation 309'-5". Tank wetted nozzles, internal piping, and eductors are constructed of stainless steel.
The tanks are provided with freeze protection.
The freeze protection consists of self-regulating heat tracing (Chemelex Auto heat Trace System, 10 PTV-2 heater type) which !
encloses the bottom circumference of each tank, except the portions housed in the pump house.
The heat tracing is covered by weatherproofed semirigid fiberglass insulation.
1.3.2.2 Transfer Pumps (See Appendix A, Tables 2 and 3) l Two transfer pumps (PH-P-1 and PH-P-2) are provided for processed water pumping operations. The pumps are the single-stage, end suction / top discharge horizontal centrifugal type with stainless steel construction. Each pump is provided with a drip pan to collect any minor stuffing box Page 7 15518 LC
SD 3520-010 leakage. Pump casing drains are valved and capped locally. Motors for the pumps are supplied with electrical service from motor
- control center 2-31H.
1.3.3 Process System Design Piping is designed, fabricated, and tested in accordance with ANSI B31.1, Power Piping Code. The portion of piping from the EPICOR II system tie-in up to and including isolation valve PH-V002 conforms to NRC Regulatory Guide 1.143, and is therefore classified as Important to Safety. System piping within the boundary of primary containment piping penetration R-565 is also Important to Safety. All other portions of the system are designated as Not Important to Safety.
System piping and valves are manufactured of austenitic stainless steel in accordance with Reference 1.2.9 for line specification HCD. Maximum operating and test ,
pressures for the system piping and valves are provided '
in Reference 1.2.10.
The system design temperature range is 37 to 120 F based on the low set point of tank heat tracing and the maximum design temperature of the interfacing systems.
1.4 SYSTEM PERFORMANCE CHARACTERISTICS System design flow rates are as follows:
Modes of Operation Flow (qpm)
- a. Processed water delivery inside contain- 200 ment via a hose network from primary 3
containment piping penetration R-565
- b. SDS feed and monitor tank system 90 effluent delivery (transfer pumps SDS-P-1A and SDS-P-1B)
- c. EPICOR II (effluent - transfer pump ALC-P-5) 100 (recycle - transfer pump PW-P-1) 100
- d. Tank recirculation (transfer pump PW-P-2) 275 (total PWST mixing flow, including eductor induced flow) 1100
- e. Transfer pump PH-P-1 minimum flow 30 bypass
- f. Transfer pump PW-?-2 minimum flow 50 bypass Page 8 15518 LC
SD 3520-010 Fluid temperatures in the tanks are maintained above 37 F using the tank freeze protection described in Section 1.3.2.1.
1.5 SYSTEM ARRANGEMENT The storage tanks (PW-T-1 and PH-T-2) are located in the yard, outside the protected area and east of the Unit 2 power block, as shown on Reference 1.2.12. Located between the tanks is the PW pump house which houses the transfer pumps, sample sink, and tank isolation valves. The location of the components inside the pump house is shown on Reference 1.2.2.
1.6 INSTRUMENTATION AND CONTROL (See Reference 1.2.18) 1.6.1 Control Panels local control panel'PH-LCPI, located in the PW pump house, is equipped with the following panel-mounted devices:
- a. Indicators for liquid level and temperature in the storage tanks
- b. Hand switches and indicator lights for the transfer pumps
- c. Alarms for high tank level and pump thermal overload.
In addition to the local control panel (PW-LCP1), system devices are also mounted on panel 8 in the main control ,
room and on EPICOR II control panel ALC-PNL-1 in the TV '
monitor control building.
1 1.6.2 Level Transmitters i Level transmitters, PW-LT-2 and PW-LT-5, are provided to i measure the liquid level in the tanks. Their output is I transmitted to the level switches described in Sections i l 1.6.7 and 1.6.8, and the level indicators described in l Section 1.6.4. Their output signal is 4 to 20 mA dc for ;
a range of 0 to 500 inches H20.
1.6.3 Temperature Transmitters I Temperature transmitters, PW-TT-3 and PH-TT-6, are provideo to sense the 11guld temperature in the tanks. '
Their output is transmitted to the temperature indicators described in Section 1.6.5. Their output is 4 to 20 mA dc for a range of 0 to 150 F. The input to PH-TT-3 and PH-TT-6 is from resistance temperature detectors PH-TE-3 and PW-TE-6, respectively. The resistance for the range of 0 to 150 F is 93.03 to 125.37 ohms.
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SD 3520-010 1.6.4 Level Indicators Tank level indicators, PW-LI-2 and PW-LI-5, are provided on local control panel PW-LCPl. Their input signal and scale are 4 to 20 mA dc and 0 to 500 inches H 2 0, respectively.
Varec series 2500, model B mechanical type level indicators, PW-LI-I and PW-LI-4, are mounted on the side of the tanks, outside the pump house. Their range is 0 to 35 feet H 2C.
1.6.5 Temperature Indicators Tank 11guld temperature indicators, PW-TI-3 and PW-TI-5, are provided on local control panel PW-LCPl. Their input signal and scale are 4 to 20 mA dc and 0 to 150 F, respectively.
1.6.6 Pressure Gauges Pressure gauges, PW-PI-il and PW-PI-12, are provided on the discharge lines of transfer pumps PW-P-1 and PW-P-2, respectively. Their range is 0 to 300 psig.
1.6.7 High Level Switches Level switches, PH-LSH-2 and PW-LSH-5, are located in local centrol panel PW-LCPI and actuate alarms on main control room panel 8, EPICOR II control panel ALC-PNL-1, and local panel PW-LCPl.
1.6.8 High-High level Switches Level switches, PW-LSHH-2 anil PW-LSHH-5, are located in local panel PW-LCPi and actu6te alarms on main control panel 8 and EPICOR II panel ALC-PNL-1.
1.6.9 Low Temperature Switches Temperature swltches, PW-TSL-7 and PW-TSL-8, are provided to activate the tank heat tracing when the low set point is reached (set point given in Section.2.0). These switches are directly mounted on the tanks.
1.6.10 High Temperature Switches Temperature switches, PH-TSH-7 and PW-TSH-8, are provided to deactivate the tank heat tracing when the 1,igh set l point is reached (set point given in Section 2.0). These switches are directly mounted on the tanks. !
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SD 3520-010 1.6.11 Hand Indicating Switches Hand indicating switches PW-HIS-9, PW-HIS-10, PW-HIS-9A, PW-HIS-10A, PW-HIS-98, and PH-HIS-108 are provided for the transfer pumps. Switches PW-HIS-9 and PW-HIS-10 provide local start /stop control and are mounted on local control panel PW-LCPI. Switches PH-HIS-98 and PW-HIS-108 provide remote start /stop control and are mounted on panel 8 in the main control room. Switches PH-HIS-9A and PW-HIS-10A are also mounted on control room panel 8 and function to block pump control from the pump house.
1.6.12 Level Test Connections Each tank is equipped with a level test connection.
1.6.13 Pressure Test Connectio_n_s The suction line of each transfer pump is equipped with a pressure test connection to verify pump performance.
1.6.14 Flow Test Connections Minimum flow bypas: lines of the transfer pumps and the tank recirculation line are equipped with orifice flanges / plates with pressure tap openings. In the minimum flow bypass mode, the flow test connections provide a means of verifying that the minirr.um safe pump l bypass flow is obtained. In the tank recirculation mode, !
the flow test connection provides a means of determining tank recirculation flow rate.
1.6.15 Annunciators l
High tank level alarms are provided and are mounted on their respective control panels noted below: l l
Alarms Control Panels !
PW-LAH-2 and PW-LAH-5 PW-LCPI PW-LAH-2A and PW-LAH-5A Main Control room panel 8 PW-LAH-2B and PH-LAH-5B ALC-PNL-1 Alarms PW-LAH-2A, PW-LAH-2B, PW-LAH-5A, and PW-LAH-5B also annunciate for high-high tank level on their respective panels. The PW transfer pump motors are provided with thermal overload protection with alarms FW-TAH-9 and PW-TAH-10 located on panel PW-LCPl. l l
1.7 SYSTEM INTERFACES l The PW storage and recycle system irterfaces with the following systems:
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SD 3520-010
- a. EPICOR II
- b. SDS feed and monitor tank system
- c. OTSG chemical cleaning system 1.7.1 The system is designed primarily to provide storage capacity for processed water transferred from EPICOR II,
< and to a lesser extent the SDS feed and monitor tank system. The system is also capable of recycling water to EPICOR Il for further processing.
l.7.2 The tie-in to the OTSG chemical cleaning system is provided to use a portion of the system as a processed water supply header in the Unit 1/ Unit 2 corridor and in the auxiliary building.
2.0 SYSTEM LIMITATIONS SET POINTS. AND PRECAUTIONS 2.1 The tanks are provided with high and high-high level alarms as described in Section 1.6.15. The high and high-high tank level set points are 405 and 411 inches, respectively, from the bottom of the tank. The liquid level in the tanks is monitored prior to and during pumping operations. Tank level indications are based on a zero reference at the bottom of the tanks. Level connections are located 24 inches above the bottom of the tanks.
! 2.2 The tanks are provided with low and high temperature switches
) (described in Sections 1.6.9 and 1.6.10, respectivC y) to limit i operation of the tank heat tracing. The low and high temperature set points are 37 and 42 F, respectively.
2.3 The contents of radioactivity stored in each tank are limited such that a tank failure would not result in greater than 10 CFR Part 20, Appendix B, Table II, Column 2 concentrations at i tne nearest drinking water intake for combined radionuclides as a l function of actual volume. This limit is quantified using the following formula, which is given in the Programmatic Environmental Impact Statement, Section 7.2.4.2:
Al < 6.4 x 106 (Ci/pC1.ml)
MPC) -
where:
At - tank activity prior to rupture (curies !
MPC) = maximum permissible concentration (10 CFR Part 20, Appendix B, Table II, Column 2 - pC1/ml)
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SD 3520-010 2.4 To ensure that only water of proper chemistry and isotopic concentration is delivered from the system, sampling is required prior to transferring processed water to an interfacing system and/or into the reactor building. However, sampling is not required after the initial sample if no additional water is transferred to the tanks.
2.5 System operators should be aware of the following:
- a. Storage tank water chemistry
- b. Valve alignments
- c. Transfer pump discharge pressure
- d. Radiation levels in the vicinity of the tanks following each transfer of water to the tanks
- e. Radionuclide concentrations of processed water to be transferred from the tanks.
3.0 OPERATIONS 3.1 INITIAL FILL Prior to filling the preselected tank, the proper valve lineup is selected on the influent lines and the tank level noted. The water chemistry and isotopic concentration of any effluent transferred to the storage tanks are determined prior to delivery.
The high point vent on the EPICOR II effluent line is opened prior to pumping operations via EPICOR II transfer pump ALC-P-5 to enable air trapped in the system piping to escape.
3.2 STARTUP Radiation levels in the vicinity of the tanks are monitored following each transfer of water to the tanks.
Prior to recirculating the contents of a preselected tank, the i proper valve lineup is selected on the pump suction' lines and on the tank recirculation / minimum flow bypass line of transfer pump PW-P-2. After the tank contents have been recirculated, the proper valve lineup is selected on the suction, minimum flow, and discharge lines of the preselected transfer pump. Process line high point vents are opened prior to pump operations to enable air trapped in the system piping to escape. J After initial system flushing, startup strainers PW-S-1 and PW-S-2 I should be removed.and spacer rings installed. l l
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1551B LC l
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SD 3520-010
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3.3 NORMAL OPERATION Normal operation of the system is on a batch mode basis. After one storage tank has received a batch, it is isolated and the contents
. recirculated, the associated sample line purged, and the fluid sampled (refer to Section 2.4). Based on the chemistry and radiological results of the sample, the tank contents are either transferred for use or routed to EPICOR II for further processing.
While the preselected tank is being recirculated, sampied, and
- transferred, the second tank is available to receive an effluent stream.
Automatic control of the system is used where necessary for safe .
system operation, such as preventing tank contents from freezing. !
Other operations are accomplished by manual and remote manual control, since operations of these types mainly involve intermittent batch type operations.
Under normal operation, the transfer pumps use the suction lines containing tank isolation valves PH-011 and PH-V012 when the water ,
level is above 47 inches from the bottom of the tanks. Below the 47-inch elevation, the tank drawoff sump drain lines are used.
Operation of the transfer pumps is in accordance with Reference 1.2.15. During normal modes of operation, each of the following i system requirements is satisfied by the noted transfer pump:
i Modes of Operation Transfer Pump j
- a. Tank recirculation *PH-P-2
- b. EPICOR II recycle PH-P-1
- c. Processed water delivery PH-P-1 or PH-P-2 !
inside containment via hose network from primary containment piping penetration R-565 l l
3.4 5HUTDOWN j i
Flow to a storage tank may be discontinued by shutting off the feed i pump in operation (EPICOR II transfer pump ALC-P-5, SDS monitor l tank transfer pumps SDS-P-1A or SDS-P-18, etc.) and isolating the i open flow path.
Operation of the PH transfer pumps may be discontinued by use of hand switches PH-HIS-98 or PH-HIS-10B, which are located in the main control room. Operation of the pumps may also be discontinued by use of hand switches PH-HIS-9 and PH-HIS-10, which are located in the PH pump house. Switches PH-HIS-9 and PH-HIS-10 may only be used if the related block switches in the main control room, PH-HIS-9A and PH-HIS-10A, are properly aligned.
I *Rostriction orifices are sized based on operation of this transfer pump Page 14 1551B LC
SD 3520-010 3.5 DRAINING Where required, process system lines are equipped with 1-inch low point drains to drain system piping.
Each storage tank is equipped with a drawoff sump ar.d an associated drain line (tank pump down line) to permit complete draining of each tank. Part of the tank contents may be gravity drained to the 4,000-gallon capacity chemical cleaning building sump via the common overflow / drain line. When pumping down the tanks. caution shall be used to prevent cavitation of the transfer pump in operation.
Transfer pumps are equipped with casing drains that are piped and capped locally in the pump house. Purp casings should be drained when required, with the containers disposed of in a suitable location.
3 . i5 REFILLING Prior to refilling a fully drained storage tank, the operations (described in Section 3.1) used for initial tank filling are executed.
3.7 INFREQUENT OPERATIONS Redundant transfer pumps are not provided. With one pump out of service, the other pump is not used unless an evaluation concludes that the operational pump may be used to satisfy the specific application. This is necessary due to the differential in design capacity and total head (refer to Appendix A, Tables 2 and 3).
3.8 TRANSIENT OPERATIONS If a loss of power transient in the PH pump house were to occur, operation of the transfer pumps would be discontinued and the high/high-high tank level alarms in the main control room and in l the TV monitor control building would annunciate. l l
4.0 CASUALTY EVENTS AND RECOVERY PROCEDURES i l
4.1 CASUALTY EVENTS The system does not impact on plant fire safety.
Possible system casualty events include the following: j
- a. System laakage
- b. High radiation level 4
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SD 3520-010
- c. Transfer out-of-specification water
. d. PH storage tank overfill 4.2 DESIGN FEATURES TO MITIGATE EFFECTS OF CASUALTY EVENTS 4.2.1 The pump house is designed to contain any minor leakage of processed water in the structure to prevent leakage to the environment.
4.2.2 The system is designed with the capability to recycle
- batches to EPICOR II if further processing is required.
Radiation levels in the vicinity of the tanks are monitored following each transfer of water to the tanks.
These levels are controlled such that the dose rate will not exceed 0.6 mrem /hr at the east edge of the access road to the west of the tanks. The contents of radioactivity stored in each tank are limited per
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Section 2.3.
4.2.3 Sampling capability exists in the system to prevent out-of-specification water from being discharged from the tanks.
4.2.4 Each PH tank is provided with an overflow line and a high/high-high level alarm.
4.3 RECOVERY PROCEDURES 4.3.1 Recovery from a system leakage casualty event involves isolation of the leak and collection of the spill.
, 4.3.2 Recovery from a high radiation casualty event entails l roping off an area around the tanks to alert personnel that radiation dosimetry is required to be worn to enter that area, and furthermore, transferring the effluent to EPICOR II for further processing.
4.3.3 Recovery from a casualty event in which out-of-specification water is discharged involves stopping the pump in operation, isolating the flow path i and source tank, and isolating the affected area or !
component. I 4.3.4 Recovery from a PH storage tank overfill condition ,
entails stopping the feed pump in operation, isolating j the ficw path, and using a PW transfer pump to partially l drain the overfilled tank.
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SD 3520-010 5.0 MAINTENANCE 5.1 MAINTENANCE APPROACH Hinimal maintenance is expected on the system. Maintenance requirements can be categorized into the following general areas:
- a. Tank maintenance
- b. Transfer pump maintenance
- c. Valve maintenance
- d. Instrument maintenance Existing plant maintenance procedures are used where possible along with vendor maintenance instructions.
5.2 CORRECTIVE MAINTENANCE If repair welding is done to any pressura retaining part or component of the system, it is to be done in accordance with the procedures used for initial construction. Upon completion, the specific part or component is leak tested per ANSI B31.1.
Transfer pump corrective maintenance is in accordance with Reference 1.2.15.
5.3 PREVENTIVE MAINTENANCE Transfer pump preventive maintenance is in accordance with Reference 1.2.15.
Active components, including pumps, valves, and motors, are routinely inspected to spot potential problem areas.
6.0 ACCEPTANCE TESTING The storage tanks are field hydrostatically tested in accordance with Reference 1.2.13.
The transfer pumps are shop hydrostatically tested in accordance with manufacturers' standard procedures.
System piping and valves are field hydrostatically tested to the test pressures noted in Reference 1.2.10.
Acceptance testing shall be in accordance with existing plant procedures.
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SD 3520-010 APPENDIX A TABLE l-PROCESSED HATER STORAGE TANKS Tank Detail Identification PH-T-1 and PH-T-2 Manufacturer Pittsburgh - Des Moines Steel Co.
Capacity (per tank), gallons 500,000 Installation Vertical Outside diameter, feet 50 Straight shell height, feet 36 Shell material ASME SA285, Grade C carbon steel Interior lining Epoxy-phenolic type Shell thickness, inches 3/8 Design temperature, F 40 - 120 Design pressure Atmospheric Corrision allowance, inches 1/16 (shell) and 1/8 (floor)
Design code API-650 Page A-1 15518 LC-t
SD 3520-010 APPENDIX A TABLE 2 PROCESSED WATER TRANFER PUMP PH-P-1 1 1
Pump Details (See Figure 1 for Pump Performance Curve)
Identification PH-P-1 Manufacturer Goulds Model No. 3196 ST Type Single stage horizontal centrifugal l Rated speed, rpm 3500 1 Rated capacity, gpm 160 i Rated total dynamic head, feet 255 Shutoff head, feet 280 Shaft seal Mechanical - single inside type (John Crane Type 1 with tungsten carbide seal faces)
Lubricant Oil Motor Details Manufacturer Reliance Type Induction Enclosure 00P Rated horsepower, hp 25 Speed, rpm 3600 Insulation class B !
Service Continuous duty Service factor 1.15 Lubricant / coolant Grease / air Power requirements 460 volts, 3 phase, 60 Hz l
i l
1 1
Page'A-2 1551B LC
\ j
SD 3520-010 APPENDIX A TABLE 3 PROCESSED WATER TRANFER PUMP PW-P-2 Pump Details (See Figure 2 for Pump Performance Curve)
Identification PW-P-2 Manufacturer Goulds Model No. 3196 ST Type Single stage horizontal centrifugal Rated speed, rpm 3550
- Rated capacity, gpm 250 Rated total dynamic head, feet 270 Shutoff head, feet 305 Shaft seal Mechanical - single inside type (John Crane Type I with tungsten carbide seal faces)
Lubricant Oil Motor Details Manufacturer Reliance Type Induction Enclosure 00P Rated horsepower, hp 30 Speed, rpm 3600 Insulation class B Service Continuous duty Service factor 1.15 Lubricant / coolant Grease / air Power requirements 460 volts, 3 phase, 60 Hz i
Page A-3 1 1551B LC i
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APPENDIX A - TABLE 4
- PROCESSED WATER .
INSTRUMENT INDEX
- TAG INPUT / SPAN NO. SERVICE LOCATION SUPPLIER MODEL NO. OUTPUT / SCALE SET POINT REMARKS PW-LI-1 PW-T-1 Level Yard VAREC 2500 FOD B 0-35' WC N/A Mechanical 0-35' WC PW-LAH-2 PW-T-1 Level Hi PW-LCPI RIS AN3100 N/A N/A PW-LAH-2A PW-T-1 Level Hi/Hi-Hi CR-PNL8 RIS N/A N/A PW-LAH-28 PW-T-1 Level Hi/Hi-Hi ALC-PNL-1 N/A N/A PW-LI-2 PW-T-1 Level PW-LCPI Sigma 1151VB420 4-20 HADC N/A 0-500" WC PW-LSH-2 PW-T-1 Level Hi PW-LCP1 foxboro 63U-8T-0]DR 4-20 MADC 405" WC (I)
N/A PW-LSHH-2 PW-T-1 Level Hi-Hi PW-LCPI Foxboro 63U-BT-0JDR 4-20 MADC 411" WC (I)
N/A PW-LT-2 PW-T-1 Level Local (FWPH) Foxboro E13DM0!SAH1 0-500" WC N/A 8-20 MADC l PW-TE-3 PW-T-1 Temperature Local (PWPH) Rosemount 78N21N0lN135 0-150 F N/A 93.03-125.37G PW-TI-3 PW-T-1 Temperature PW-LCPI Sigma 1151VB420 4-20 MADC N/A 0-150 F PW-TT-3 PW-T-1 Temperature Local (PWPH) Rosemount 444RL2UlAlNA 93.03-125.370 N/A 4-20 MADC PW-TW-3 PW-T-1 Temperature Local (PWPH) Pyco 16-5019-12" N/A N/A PW-LI-4' PW-T-2 Level Yard VAREC 2500 Mod B 0-35' WC N/A Mechanical 0-35' WC PW-LAH-5 PW-T-2 Level Hi PW-LCP1 ~RIS AN3100 N/A N/A PW-LAM-5A PW-T-2 Level Hi/Hi-Hi CR-PNL8 RIS N/A N/A
- PW-LAH-5B PW-T-2 Level Hi/Hi-Hi ALC-PNL-1 N/A N/A PW-LI-5 PW-T-2 Level PW-LCPI Sigma ll51V8420 4-20 MADC N/A 0-500" WC PW-LSH-5 PW-T-2 Level Hi PW-LCP1 foxboro 63U-BT-0JDR 4-20 MADC 405" WC (I)
N/A PW-LSHH-5 PW-T-2 Level Hi-Hi PW-LCPI foxboro 63U-BT-0JDR 4-20 MADC 411'" WC (I)
N/A 4
A-6 1552B LC
j APPENDIX A - TABLE 4 PROCESSED WATER 6 INSTRUMENT INDEX TAG INPUT / SPAN NO. SERVICE LOCATION SUPPLIER MODEL NO. OUTPUT / SCALE SET PDINT REMARKS PW-LT-5 PW-T-2 Level Local (PWPH) Foxboro E13DH-ISAH1 0-500* WC N/A 4-20 MADC PW-TE-6 PW-T-2 Temperature Local (PWPH) Rosemount 78N21N01135 0-150F N/A 93.03-125.370 N/A.
PW-TI-6 PW-T-2 Temperature PW-LCP1 Sigma 1151VB240 4-20 MADC N/A 1-150 F PW-TT-6 PW-T-2 Temperature Local (PWPH) Rosemount 442RL2UlAINA 93.03-125.37Q N.A 4-20 HADC 1
PW-TW-6 PW-T-2 Temperature Local (PWPH) Pyco 16-5018-12" N/A N/A-PW-TSH-7 PW-T-1 Heat Trace Yard (Local) Chemelex AMC-1B 40-120 F 42F (I)
Control N/A PW-TSL-7 PW-T-1 Heat Trace Yard (Local) Chemelex E334-US-277C 40-120 F 37F (D)
Control N/A PW-TSH-8 PW-T-2 Heat Trace Yard (Local) Chemelex AMC-13 40-120 F 42F (I)
Control N/A PW-TSL-8 PW-T-2 Heat Trace Yard (Local) Chemelex E334-US-277C 40-120 F 37F (D) i Control N/A J
PW-HIS-9 PW-P-1 PW-LCP1 C-H E30JF N/A N/A PW-TAH-9 PW-P-1 Motor Overload PW-LCP1 RIS AN3100 N/A N/A PW-HIS-9A PW-T-2 Local Block CR-PNL 8 C-H E30DH - N/A N/A PW-HIS-98 PW-T-2 i CR-ONL 8 C-H E30JF N/A N/A PW-HIS-10 PW-P-2 FW-LCP1 C-H E30]F N/A N/A 4 PW-TAH-10 PW-P-2 Hotor Over ioad PW-LCP1 RIS AN3100 N/A N/A
' PW-HIS-10A PW-P-2. Local Block CR-PNL 8 C-H E30DH N/A N/A PW-HIS-108 PW-P-2 CR-PNL 8 C-H E30DH N/A N/A PW-PI-11 PW-P-1 Disch. Press. Local (PWPH) Ashcroft 1010A 0-300 PSIG N/A 0-300 PSIG i
PW-PI-12 PW-P-2 Disch. Press. Local (PWPH) Ashcroft 1010A 0-300 PSIG N/A l
?
0-300 PSIG
.+
A-7 15528 LC
APPENDIX A - TABLE 5 PROCESSED WATER .
VALVE LIST MATERIAL E&LVE NO. SIZE (IN) DESCRIPTION TYPE. MANUFACTURER & MODEL NUMBER SPECIFICATION PW-V002 2 EPICOR II Effluent Globe-SW PW-V003 3 Tank Cross Connect Inlet. Isol. Gate-BW-300 # Kitz 300VMAM P-426A PW-V004 4 Tank Cross Connect Inlet Isol. Gate-BW-300 # Kitz 300VMAM P-426A PW-V005 4 Tank T-1 Nozzle Isol . Gate-BW-300 # Kitz 300UMAM P-426A PW-V006 4 Tank T-2 Nozzle Isol. Gate-BW-300 # Kitz 300VMAM P-426A i
PW-V007 2 1/2 Tank Cross Connect Inlet Isol. Gate-BW-300 # Kitz 300VMAM P-426A PW-V008 2 1/2 Tank Cro>s Connect Inlet Isol. Gate-BW-300 # Kitz 300UMAM P-426A PW-V009 3 Tank T-1 Nozzle Isol. Gate-BW-300 # Kitz 300UMAM P-426A PW-V010 3 Tank T-2 Nozzle Isol. Gate B'l-300 # Kitz 300UMAM P-426A
- PW-V011 10 Tank T-1 Nozzle Isol . Gate BW-300 # Kitz 300VMAM P-426A PW-V012 10 Tank T-2 Nozzle Isol. Gate BW-300 # Kitz 300UMAM P-426A PW-V013 4 Tank T-1 Nozzle Isol. Gate BW-300 # Kitz 300UMAM P-426A PW-V014 4 Tank T-2 Nozzle Isol . Gate BW-300 # Kitz 300UMAM P-426A PW-V015 6 Tank T-1 Nozzle Isol. Gate BW-300 # Kitz 300UMAM P-426A PW-V016 6 Tank T-2 Nozzle Isol. Gate BW-300 # Kitz 300UMAM P-426A PW-V017 1 Tank T-1 Level Test Conn. Isol. Globe-SW-800# DSI #4211 P-426A PW-V018 1 Tank T-2 Level Test Conn. Isol. Globe-SW-800# DSI #4211 P-426A PW-V019 1 Tank T-1 Level Test Conn. Isol . Globe SW-800# DSI #4211 P-426A
', PW-V020 1 Tank T-2 Level Test Conn. Isol. Globe SW-800# DSI #4211 P-426A PW-V021 1 Tank T-1 Level Xmit Isol. Globe SW-800# DSI #4211 P-426A PW-V022 1 Tank T-2 Level Xmit Isol. Globe SW-800# DSI #4211 P-426A PW-V035 6 Tank T-2 Nozzle Isol . Gate-BW-300# Kitz #300UMAM P-426A PW-V036 6 Tank T-1 Nozzle Isol. Gate-BW-300# Kitz #300UMAM P-426A PW-V037 10 Tank T-2 Nozzle Isol. Gate-BW-300# Kitz #300UMAM P-426A A-8 15538 LC
APPENDIX A - TABLE 5 PROCESSED WATER .
i VALVE LIST MATERIAL VALVE NO. SIZE (IN) DESCRIPTION TYPE. MANUFACTURER & MODEL NUMBER SPECIFICATION PW-V038 10 Tank T-1 Nozzle Isol. Gate-BW-300# Kitz #300UMAM P-426A PW-V039 2 1/2 SDS Effluent Line Isol. Gate-BW-300# Kitz #300UMAM P-426A PW-V040 3/4 EPICOR Effluent Line Vent Globe - SW ,
PW-V041 6 Tank T-1 Sump Isol. Gate-BW-300# Kitz #300VMAM P-4264 PW-V042 6 Tank T-2 Sump Isol. Gate-BW-300# Kitz #300UMAM P" 26A PW-V043 4 Tank T-1 Sump / Suction Isol. Gate-BW-300# Kitz #300UMAM P-426A PW-V044 4 Tank T-2 Sump / Suction Isol. Gate-BW-300# Kitz #300VMAM P-426A PW-V045 1 Pump Suction Process Line Drain Y-Globe-SW-1500* VSC/Conval #12G2-316SS P-426C PW-V046 6 Pump Suction Cross Connect Isol. Diaphram-BW-150# MON /ITT #2465-3-M P-426C PW-V047 6 Common Flanged Suction Diaphram-BW-150# MON /ITT #2465-3-M P-426C PW-V048 3/4 Pump Suction Line Vent Globe-SW-800# McJunkin Vogt #5W-12.501 P-426C PW-049 6 Pump Suction Cross Connect Isol. Diaphram-BW-150# MON /ITT #2465-3-M P-426C l PW-050 4 PW-P-l Suction Isol. Diaphram-BW-150# MON /ITT #2465-3-M P-426C PW-051 6 PW-P-2 Suction Isol. Diaphram-BW-150# MON /ITT #2465-3-M P-426C ,
1 FW-V052 3/4 PW-P-1 Px Isol. Diaphram-BW-150# MON /ITT #2465-3-M P-426C j
l PW-V053 3/4 PW-P-2 Px Isol. Diaphram-BW-150# MON /ITT #2465-3-M P-426C I
PW-V054 3/4 PW-PI-11 Px Isol. Diaphram-BW-150# MON /ITT #2465-3-M P-426C l
l 3/4 PW-PI-12 Px Isol. Diaphram-BW-150# MON /ITT #2465-3-M P-426C PW-V055 l
PW-V056 3 PW-P-1 Discharge Check-BW-150# McJunkin/Aloyco #377 P-426C PW-V057 4 PW-P-2 Discharge Check-BW-150# McJunkin/Aloyco #377 P-426C 3 PW-P-1 Discharge Diaphram-BW-150# MON /ITT #2465-3-H P-426C PW-V058 l
4 PW-P-2 Discharge Diaphram-BW-150# MON /ITT #2465-3-M P-426C PW-V059 3 PW-P-1 Discharge Isol. Diaphram-BW-150# MON /ITT #2465-3-M P-426C PW-V060 !
4 PW-P-2 Discharge Isol. Diaphram-BW-150# MON /ITT #2465-3-M P-426C PW-V061 l
l
~A-9 15538 LC +
APPENDIX A - TABLE 5 PROCESSED WATER -
VALVE LIST MATERIAL VALVE NO. SIZE (IN) DESCRIPTION TYPE. MANUFACTURER & MODEL NUMBER SPECIFICATION PW-V062 3 Pump Discharge Crossover Isol. Diaphram-BW-150# MON /ITT #2465-3-H P-426C PW-V063 3/4 Pump Suction Line Vent Globe-SW-800# McJunkin/Vogt #SW-12501 P-426C PW-V065 3/4 Sample Isol. Diaphram-SW-150# MON /ITT #2470-3-M P-426C PW-V066 1 1/2 PW-P-1 Min. Flow Bypass Isol . Diaphram-SW-150# MON /ITT #2470-3-H P-426C PW-V067 4 PW-P-2 Min. Flow Bypass Isol. Diaphram-BW-150# MON /ITT #2465-3-H P-426C PW-V068 3 Pump Discharge Spare Diaphram-SW-150# MON /ITT #2465-3-M P-426C PW-V069 3 Pene. R-565 Outboard Isol. Globe-BW-150# Aloyco N316 Special 44230 (1974)
PW-V076 4 PW-P-2 Reci rc. Isol . Diaphram-BW-150# MON /ITT #2465-3-M P-426C PW-V077 4 Min. Flow Recirc. Crossover Iso. Diaphram-BW-150# MON /ITT #2465-3-M P-426C PW-V078 3/4 EPICOR II Effluent Line Vent Globe-SW-800# DSI #4211 P-426A PW-V079 3 PW-T-1 Inlet Check-BW-150# McJunkin/Aloyco #377 P-426C PW-V080 3 PW-T-2 Inlet Check-BW-150# MON /ITT #2470-3-M P-426C PW-V081 1 1/2 Sample Sink Drain Isol. Diaphram-SW-150# MON /ITT 2465-3-H P-426C PW-V082 3 Pump Suction Flanged Conn. Diaphram-BW-150# MON /ITT 2465-3-M P-426C PW-V083 4 PW-P-2 Min. Flow Recirc. Check-BW-150# McJunkin/Aloyco #378 P-426C PW-V084 1 1/2 PW-P-1 Min. Flow Recirc. Check-BW-SW-150# McJunkin/Aloyco #374 P-426C PW-V066 3/4 Sample Line Isol . Diaphram-SW-150* MON.ITT #2470-3-H P-426C PW-V087 3/4 Common Pump Disch. Vent Globe-SW-800* McJunkin/Vogt SW-12501 P-426C PW-V088 1 Common Pump Disch. Drain Y-Globe-SW-1500# VSC/Conval #12G2-31655 P-426C PW-V090 1 PW-P-1 Casing Drain Globe-SW-1000# Dresser /Moncock 5500WIXMY9 PW-V091 1 PW-P-2 Casing Drain Globe-SW-1000# Dresser /Mancock 5500WIXMY9 PW-V093 1 Pump Min. Flow Recirc. Crossover Drain Y-Globe-SW-1500* VSC/Conval #12G2-31655 P-426C PW-V098 2 1/2 Pene. R565 Outboard Isol. Globe-BW-150# Aloyco N316 Special 44230 PW-V099 1 Pene. R565 Test Conn. Isol. Globe-SW-600# Dresser /Mancock 5500W 94711 A-10 15538 LC
APPENDIX A - TABLE 5 PROCESSED WATER .
VALVE LIST MATERIAL VALVE NO. SIZE (IN) DESCRIPTION TYPE. MANUFACTURER & MODEL NUMBER SPECIFICATIDN PW-V100 4 Supply to R565 Isol. Diaphram-BW-150# MON /ITT #2465-3-M P-426C PW-V101 1 Supply to RS65 Line Drain Y-Globe-SW-1500# VSC/Conval #12G2-31655 P-426C PW-V102 1 OTSG Line Drain Y-Globe-SW-1500# VSC/Conval #12G2-31655 P-426C PW-V103 1 Pene. R565 Test Conn. Isol. Globe-SW-600# Dresser /Hancock #5500W 94711 (1969)
PW-V104 3 Common Pump Disch, flarged Conn. Diaphram-BW-150# MON /ITT #2465-3-M P-426C ,
PW-V105 3 Supply to RS65 .are Diaphram-BW-150# MON.ITT #2d65-3-M P-426C PW-V106 3/4 OTSG Line Vent Globe-SW-800# McJunkin/Vogt #SW-12501 P-42bC
.PW-V107 2 1/2 SDS to PW-T's Gate-BW- Ladish #8276-0107-25A Field
- PW-V108 2 1/2 Supply to PW-T's Gate-BW- Ladish #8276-0107-25A Field PW-V109 3/8 Sample Throttle Needle-tube- Parker Cf! 6Z-V4LN-55 field i
A-11 15558 LC
_ _ _ _ _ _ - _ _ _ _ - _ _ _ _ __. . . - _ . .- . -. . . . - . . _