ML20086K269
| ML20086K269 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 02/03/1975 |
| From: | Lutz P PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | |
| Shared Package | |
| ML20086K267 | List: |
| References | |
| NUDOCS 8401260395 | |
| Download: ML20086K269 (14) | |
Text
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<> L,J HISTORICAL
SUMMARY
OF REACTOR KATER CHEMISTRY THROUGH 17/h PEACH E(7FTOM ATOMIC PC'.ER STATION UNITS //2 ed //3 PHILADELPHIA ELECTRIC COMPANY
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9 9 PEACH BOPETOM UNITS 2 ( 3 -
'. REACTOR WATER CHEMISTRY,SUMPARY
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'the first fill of >the hPV was on 6/5/7[with 700 ppm trisodium phosphate as PO4 .
Tho water chemistvor this fill and subsequent afulysis of water in the RPV indicate tha rcactor water to bo of a quality consistent ~with the requirements of Cleanliness Control of Piping and-Eqdpment, Spoc. 6280 - M-303, Technical Specifications, and .
Fus1 Warranty Documents. ' .s t" 1
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Reactor Water analydes 'c'ammaridd below cover the initial fill and subsequent -
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flushes for 1972. Rosults for 1973 jnd 197h aro plotted with plant actitities noted 3 \
on separato pages. From January tp June,1973, the dsta is presented as monthly ranges i for pH and as monthly maximums for conductivity and chloridos, with the frequency of ths analysis roted on a separate page. Also included is a page noting the hours in 197h that the reactor water was between 1 and 10 prhos. Fuel Warranty allows lh days in this range. , "",
1972 Chemistry - Reactor Uator (ungas othornise noted) ,
Notes and Related "
Cond. Chloridos, Date Plant Activity #* .r M pmhos ppb w ,
6/05/72 Ruactor Vessol Fill f 6.5 1.5 <10]
Flushing between reactor, ' torus, and C.S.T.
6/20/72 '
deactor vessol.1h0*F' 6/26/72 ,
7/01/72 Attempted Hydro. of Reactor Teesel ,
7 /10/72 . 9.35 20.5 300 7/13/72 , 6.3 1.2 <100 7/18/72 Additional flushing completed of HPCI, Core Spray RHR, and ROIC 8/0h/72 Filling Torus from RPV + CST ] 79 2.9 2.h CST Chemistry 7.5 -
8/06/72 CST Chemistry - 0.8 -
Torus Chemistry -
1.0 ' -
8/07//2 s 6.3 0.9 <10]
8/08/72 70 0.9 <10]
8 /09 /72 d L.. 6.3 07 103 s'
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8/15//2 General flushing continues -
8/29/72 Recirculating flushing completed -
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Reactor vessel drained for internal work ,
9 /26/72 Flushing reactor water C.U. .
.\ s 10/111/72 'y Flushing reactor water C.U. s 10/2h/72 Flushing reactor water C.U. and tosting w +
12/05//2 ./ CRD hydraulic system was operated for checkout "
, and filling of the RP7. R.W.C.U. system was \ '
placed in service to maintain vnter quality.
12/11'/7'2 ~
59 0.8 <100 12/19//2 (Pre-op testing - CRD and Core Spray ,. ,
12/27/72 * " '
' \ 5.7 1.2 <10D
.12/28/72 , $.6 1.0 <100 12/29 //2 5.5 1.1 <100 e .
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. Prepared by: P. E.'Lutz, February 3, 975
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PIANT EVENTS - 1973 PEACH BOTTOM f2 (Numbers correspond to those on plot.)
/ Date Plant Event T 1/2 RWCU operating to maintain RPV water quality 2 1/21 RPV hydro at 1020 psig 3 ' 2/13 1hcision to remove RPV head h 2/2h Vessel head re-installed and bolts tensioned '
5 2/27 RHR, Core Spray, RCIC, Reactor recirc., CRD Hydraulic System - initial dynamic flow testing essentially completed 6 3/1 RPV head removed 7 3/13 RPV and 7orus dowatered 8 3/27 RPV internal work completed 9- h/6 011 contamination discovered in hotwell 10 h/2h Oil contamination in hotweil cleaned up without affecting Condensate F/D 11 $/8 Fuel Inspection continues 12- 6/5 Discovered putty like material floating on surface of Torus water
'13 6/19 Clean up flushing program - RPV to Torus lh 7/3 Torus clean up completed - Flushing included: RPV -> RHR -> Torus CST -> Core Spray ---> Torus Torus
- Cond. F/D - > Torus 15 7/9 Water returned to RPV and Torus 16 8/9 10% AEC license received - start fuel loading -
17 8/26 Fuel loading completed 18 9/16 1st critical 19 9/2h RPV internals installed 20 10/h-10/6 RPV hydro completed 21 10/1h Reactor critical at 150 psig
, 22 10/22. Reactor at 550 psig 23 10/30 Feedwater first delivered to the reactor vessel via the reactor feed pumps. Reactor water chemistry necessitated' shutdown. Letter frc:n CRH to WrU, ll/lh/73 'on file.
2h 11/6 Turbine rolled -' generator stator core winding problem discovered 25 12/h Decision to interchange the 2 generator stators W9 9
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PEACH BOTTOM f2 REACTCR WATER CHEMISTRI Frequency of ar.alysis: January - June,1973 Month Days Tested in Month .
January 20 February lh March h April 10 May 15 June 6 OO o
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G O PIANT EVENTS - 197h PEACH BOTTOM f2 (Nu;bers to correspond to those on plot.)
J Date Plant Events 1 1/1h Turbine generator rolled to synchronous speed 2 1/29 Generator overheating 3 2/13 Hydro to test recire, punp seal h 2/15 Turbine - generator rolled 5 3/5-3A0 Shutdown - Misc. Maintenance 6 3/18 Scram - Main Steam Lines isolated resulting in Reactor blowdown to tarus.
7 $/29 Shutdown to start pre-commercial mintenance outage 8 6/1h Condenser leak B-1 Water Box 9 7/1 Condenser leak B and A-2 Water boxes, small leak still in B-1.
10 7/$ !2 Commercial 11 7/26 Found substantial condenser leak in A water box.
12 8/2 Condenser leak repaired ,
13 8/5 Condenser leak repaired B Fater box lh 8/18 Small condenser leak indicated - appears too small to find 15 9/8 Condenser leak - C water box 16 9/13 Shutdown to repair condenser leak 17 9/16 Found condenser leak - Condensate pump shaft sheared 18 10/1 Condenser leak - A Water box (200 gpm flow of torus water to Reacter) 19 10/$ Condenser leaks repaired - A B-2 Water boxes,18 tubes in each box plugged 20 10/21 Condenser leak repaired, A-2 Water box 21 ll/h Scram - relief valve 22 11/5 Condenser tubes staked over weekend 23 11/16 900 stakes placed in condenser between tube support bundles; 2-3 leaks A-1, C-2 Fater boxes repaired additional leak C-2 Water box indicatcl.
2h ll/2h Condanser leak C-1 Water box indicated water box 0.0.S. remainder of week 25 12/2 Condenser leak A-2 water box indicated 26 12/3 Condenser leak indicated and repaired 27 12/16 Condenser leak indicated and repaired 28 12/19 and 12/22 Power reductions required for several condenser leaks - 229 tubes plugged A-1 12/21 and 12/22 Upper two rous of tubes - all water-boxes (1000 tubes plugged)
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O O PEACH BOTTOM f2 - 197h REACTOR WATER CONDUCTIVITY 11 a 110 Date Hours July 2 6 3 2h Sept. 9 13 10 21.8 29 6.6 Oct. 1 2h 2 3.5 19 6.5 20 h.6 Nov. 15 13 Dec. 15 13 5 16 6 139.2$ hours total =or 5.8 days O
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The first fill of the RPV was on 10/21/73 with 900 ppm trisodium phosphate as PO4 .
Nhils there were no reactor water analysis found per se during the initial fills and flurhes,analyscs for the water sources were available and are summarized below for 1973.
All the analyses are acceptable and conform to the Cleanliness Spec. requirements.
R: cults for 197h are plotted with plant activities noted on a separate page. Chemistry was within Tech. Spec. and Fuel Warranty during the operating period including January, 1975.
1973 Chemistry Notes and Related Cond. Chlorides, Date Plant _ Activity pH mhos p;,b
[ 9/26/73 Water in SLC Tank for RHft hydro 6.1 2.2 <10 10/19/73 Fill water - Demin. Storage Tank 7.5 1.0 <10 Fill water - Cond. Storage Tank 72 1.h 320 10/21/73 TSP Fill of Reactor 10/22/73 Fill Water - Demin. Storage Tank 72 0.5 <10
- 10/30/73 Refill of RPV after various systems were backflushed from reactor Cor.d. Storage Tank 73 0.8h <1000 10/31/73' RPV after refill 0.3 - 0.7 11/02/73 Backflushing completed 11/17/73 RPV Hydro 11/20/73 ~ Reactor Vessel recirculation flush started 12/0h/73 Recire. flushing - Condenser - Reactor -
Min. Steam leads - Condenser, Cond. Demin. being used to clean up inventories on a routine basis 12/18/73 Flushing program essentially complete except
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_f PIA!!T EVENTS,197h PEACH BU' TOM f3 (Numbers to correspo"id to those on plot.)
J Date Plant Events
-1 1/2 Reactor vessel internals.being installed 2; 1/J $ Condenser manually cleaned 3 1/29 Torus drained, manually cleaned and refilled. Two hydrostatic tests completed on reactor h 3/12 ~ Pre-operation testing continues 5 3/28 Recirculation flush of HPCI and RCIC completed. Plant flushing program completed.
6 h/5-h/8 Operational hydrostatic test to 1000 psig 7 5/7 Completed testing of RHR, core spray and recirculating systems 8 5/21 0.E. work completed on feedwater spargers on inside of vessel 9 '6/18 Fuel inspection completed 10' 7/5 Start fuel loading' 11 7/31 Fuel loading completed 12 -8/7 Critical at h:30 a.m. Shutdown 5:50 a.m. Operational tests completed 13 8/13 Vessel head on. ~ Bolt tensiohing completed
-1h 8/15 Reactor vessel hydrostatic test completed
.15 8/26- 2% power l -
16 8/27 21 WP testing 9/3 Turbine synchronized at 9%. Tested to 18%.
18 _9/6 Reactor at pressure 19 9/23 Tripped due to MSIV malfunction.
20 10/16 Unit at rated pressure 21 11/15 100% power testing 22 -11/21 B-1 condenser leak. Reactor chemistry necessitates shutdown.
23 11/22 One tube plugged in B-1 water box 2h 12/9 - Outage 25 ~12 /12 C-1 condenser' leak 26 12/16 Staking of condenser 27 '12/19 82 tubes plugged in B-2 condenser 28_ 12/23 Unit placed in con:norcial service
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YEACH' BOTTOM WITS 2 + 3 .actorWatsrChemistrySummaryO Nota: There are many pages of deminerali::ed water analysis used for various ' systems on file at Peach Bottom. It can be stated that any fill water used for a' Class A
- rystem as defined by the Cleanliness Spec. -conformed to the requirements of that epsc ie. pH 5 6 - 8.0, conductivity 3 0, chlorides <l.o ppm.
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