ML20236X006
| ML20236X006 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 09/09/1987 |
| From: | NRC |
| To: | |
| Shared Package | |
| ML20236X002 | List: |
| References | |
| FOIA-87-759 NUDOCS 8712080365 | |
| Download: ML20236X006 (37) | |
Text
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n. ?3A?S Uf' 3 ?:?3 E3: ACE: M' ?30J3CT TODAY'S MEETING PURPOSB TO PROVIDE INFORMATION TO THE NRC STAFF CONCERNING TECHNICAL ISSUES ADDRESSED DURING THE PIPE REPLACEMENT PROJECT AT PEACH BOTTOM-ATOMIC POWER STATION UNIT 3 s
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AGEhTA TOP!C PRESENT0R PROJECT 0'ERVEN TONY BAZZAN! DECONTAMINATION. MARK MILLER ENGINEERING FRAT!K COOK L i___-_________. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _. _ _. _ _ _ _ _ _ _ _ _ _ _ _ _
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k 4 ~ ~ .PBAPS URT 3 ?IPE 3EPLACEMENT PROJECT DECONTAM;NATiOM REAGE;E QU.E'J CATION PEACH BOTTOM UN!i 3 P!PE SA!,iPLES, 304SS "A" LOOP SUCT!0M 4" BL!!!D FLA':GE 1" PLUG-SAMPLE FRO:.! REC:RCUI'!O': P:P!NG e-REAGENTS LOMI-NP-LO!f! @ 90*C LOMI-AP-LO!A @ 90*C CANDECON-AP-CANDECON @ 90*C CANDEC0!! @ 120*C PNS C!TROX-AP-CITROX @ 90*C 1 =
PBAPS U' NIT 3 PIPE. REPLACEMENT PROJECT-DECONTAMINATION REAGENT QUAUFICATIO t RESULTS HIGH CHROMlUM/ ZINC 0XIDE INDICATED THE NEED FOR ~ PRE-0XIDATION STEP - i ALL REAGENTS REMOVED AT LEAST 75% OF ACTMTY ON SAMPLES EXTREMELY LOW AND ACCEPTABLE CORROSION ON ALL OF THE SAMPLES i ___-m.m-. _ _ _ _ _ _ _. - _ _ _ _ _ _ - - _
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.N.; c1. ?3PS UN"'? :3L :31PE'RIPIAC: BIEN'.' :330JEC'? t { f DECONTAM!NAT!0N1 REAGENT SEl.ECT!01 l u ,i 1 q e l010-.AP-La%' SELECTEn d 7 3 COMPAT!BLE WTH0!/EUED MATER:ALS; (PER GE/EPR:: TEST PROGRAM) H'GH ACTMlY RE!.'0\\'AL (80 - 90.".) l SHORTEST APPL! CATION TIME-(ABOUT HALF THAT 07 OTHER COMMERClA!.LY AVAILAB.'.E SOLVE!C EXTENS!VE SUCCESSFUL PLANT EXPERENCE-4 3 (MONT! CELLO, DRESDEN 2 & 3,-QUAD CIT!ES 1 & 2, OYSTER CREEK) l l __________...m__. _ _ _ ___._.______.m. _a _-___m_m._
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.l.. D..._ 1 EXTE!,'S!',1~ SUCCESSFU!. PL4!T EXP..R....I .(L'.0NT!C..'.LO, DRESDEN 2 '& 3, QUAD. ~ s 1 &.', r OYSTER CREEK) ..- 6 o - a
1 w PBAPS; UNIT 3 PIPE' REPLACEMENT PROJECT GE COMPONENT MATER!AL REVIEW 0F LOMI-NP-LOMI Ai1 WETTED SURFACES REV!EWED:' PUMPS-4 PIP!NG .i VALVES' RWCU HEAT EXCHANGERS l CONCLUS!0N: i l NO DELETERIOUS EFFECTS RESULTING FROM L EXPOSURE TO LOMi-MP-LOMI ARE EXPECTED j 1l l
e-g. y w.< y o + + .~ 4. PBAPS UNIT!3 PIPE REPLACEMENT PROJECT ) m u (, VESSELiiNTERNAL MATERIAL REVIEW-g IEFFECTSf 0F LOMI-NP-LOMI LONl VESSEL INTE LOMI, EVEN WITHOUT. DILUTION, DEMONSTRATED NOT-TO HAVE DELETERIOUS EFFECTS ON-ANY. VESSEL-INTERNAL l MATERIAL-NP, EVEN WITHOUT DILUTION, DEMONSTRATED NOT 1T0;HAVE DELETERIOUS EFFECTS-ON ANY VESSEL INTERNAL MATERIAL EXCEPT SA-508 LOW ALLOY STEEL (VESSEL N0ZZLES) INSUFFICIENT TEST DATA'TO CONCLUDE EFFECTS - ON. SA-508 .NP NOT TO BE PERFORMED ON 28" RECIRC e n-SUCTION PlPING WHERE CONTACT WlTH l SA-508 POSSIBLE 1 1 . ll
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?3X3S X.L3 :3::P3 R3P:ACEMEN'.' :3R0;EC'.' 'mi .i JEC0bEAMINAT'ON US;hG SPRAY WANJS-i '/ERY, LOW RISK FOR GETTING REAGENT INT 01 VESSEL e-LEVEL CONTROL LESS CR!Tl CAL THAN FOR " FILL AND DRA!N" METHOD e APPUCAT!0N T!ME APPROX!MATELY HALFtTHAT OF " FILL AND DRA!N" METHOD GETS FRESH SOLUT.!ON TO RISERS AND SAFE ENDS /? l _ _ - _ _ _ - _ = _ _ _ - _ _ _ _ _ _ _ _ - _ _
= 2 'I + -- i 4 P PBAPS UNIT 13 PIPE REPLACEMENT PROJECT i DECONTAMINATION
SUMMARY
r i EXPERIENCED ORGANIZATION i PLAN TO USE LOMI-NP-LOMI WITH SPRAY WANDS
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CONSERVATIVE APPLICATION METHOD NO DELETERIOUS EFFECTS ON WETTED ' SURFACES / M o. NP NOT TO BE PERFORMED ON' SUCTION PIPING EXPECT AN AVERAGE OVERALL SYSTEM CONTACT DF 0F 7.0 WHICH WILL SAVE SIGNIFICANT MAN-REM
q I', ?3A?STUT.' 3 ?:?3 33?MC3NM.' ?30;3C'.' i s. BG NEalhG 7 SCOPE:0F REPLACEMJT DESIGN IMPROVEMENTS CODES AND STANDARDS NON-DESTRUCTIVE EXAM!NAT!0N ^ PRESERV!CE TESTING 10 CFR 50.59 EVALUATION TECHN! CAL SPECIFICATION CHANGES RESTORATION lij-VESSEL IN-SERVICE INSPECTION ___m_____ _m-__. _ _ _ _ _ _ _ = _ _ _ - _ _ _. - - _ _ _ - _ _. _ _ _ _ __.____._-..__.____________m.m__._____
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- 33APS.UE' L3 :31P3 3E: 3MCEET PROJECT l c' ll 3 SCOP'E107 E3 AC E E s-~
m, r L . REC!RC PIPING LOOPS A & B RHR SUPPLY AND RETURN PlPING' INCLUDING PENETRATIONS RWCU PENETRATION AND PlPING TO REGEN HX RPV DRAIN REROUTE AND SHIELDING N-1, N-2, N-5, AND N-8 SAFE ENDS l ~ REPLACE MIRROR WITH FIBERGLASS Bl.ANKET INSULATION l l 1 RHR AND CORE SPRAY TORUS STRAINERS l L
?3A?S X? 3 ?3 33?MC3Y3N'? ?R0;3CT i i REJSD COV 30VEN~~S I P!PE' SUPPORT HARDWARE r l l RECIRCULATION PUMPS AND VALVES 1 RHR VALVES RWCU CONTAINMENT ISOLATION VALVES l l j, h
q x ?3A?S UN7.'4 ?:?3 R3?:14CEMEN" :?R0;3C" t DE_ET ONS. e RHR HEAD.. SPRAY SYSTEM-L. l REClRCULAT!ON PUMP FLOW SPUTTERS-J e CROSS tie VALVES A!B PIPE WHIP RESTRAINTS l. l u
?3A?S X" 3 ??3 33?AC3NEN" ?30;3C" J S Gt MROV_g1TS SEAMLESS 316 NG PIPING REMOVE / CLAD ALLOY 182 BUTTER ] 1 USE OF BENT PlPE ELIMINATES 42 WELDS IMPROVED CONTROL OF WELD HEAT INPUT l 1 ELECTROPOLISHING AND PRE 0XlDATION 1 I L REPLACEMENT OF WELDED ATTACHMENTS 1 RWCU.PlPING REDESIGNED TO REDUCE PUMP LOADS RPV DRAIN REDESIGNED TO REDUCE RADIATION LEVELS I t
L - PBAPS UNIT 3 PIPE RE?lACEMENT PROJECT REDUCED WELDS-
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l PBAPS UNIT 3 PIPE REPLACEMENT PROJECT CODES AND STAN)ARDS RECIRC, RHR, CORE SPRAY AND RWCU INSIDE CONTAINMENT-e DESIGNED, FABRICATED, AND INSTALLED TO . ASME SECTION lli SUBSECTION NB RPV DRAIN AND RWCU PlPlNG OUTSIDE CONTAINMENT DESIGNED TO ANSI B31.1 FABRICATED AND INSTALLED TO ASME SECTION 111. N ~ AND ND RESPECTIVELY PIPE SUPPORTS NEW - ASME SECTION lil SUBSECTION NF REUSED - ANSI B31.1 e' -CONTAINMENT PENETRATIONS ASME SECTION lll SUBSECTION NB & NE n.-.--n_.
h L ?3A?S UT.' 3 ?I?3 :13?:lC3N3N" ?:10J3C'.' N0;\\-JES RUC VE.EXAMA"ON WELDS PER ASME Ill 80 EDITION W81 ADDENDA ASME XI PSI PER 80 EDITION W81 ADDENDA AS DEFINED BY PBAPS SECOND INTERVAL ISI PROGRAM USING IGSCC ACCEPTED TECHNIQUES AND EPRI QUALIFIED INSPECTORS ALLOY 182/82 BUTTER UT UTILlZING REFRACTED L-WAV I 1 ____.c______m-.m-W
L PBAPS UNIT 3 PIPE-REPLACEMENT PROJECT PRESERV!CE TESTING i RPV DRAIN, RECIRC, RHR AND RWCU INSIDE DRYWELL-OUTLTO THE OUTER C.I. VALVES WILL BE HYDR 0 TESTED WITH THE. REACTOR VESSEL PER. ASME XI R'NCU OUTSIDE DRYWELL HYDR 0 TESTED SEPARATELY PE o CONTA:NMENT ILRT TO TEST NEW PENETRATIONS
~ PBAPS UNIT 3. PIPE REPLACEMENT PROJECT l 10 CFR 50.59 O!ALUAT!0N ARBliRARY INTERMEDIATE BREAX (A!B) DELEil0N NRC GENER!C LETTER DAED 6/19/87 ALLOWED EUM!NAT 0F AIB RULES FOR OPERAT!NG PLANTS 1 RHR AND CORE SPRAY STRAlNERS NRC GENER!CALLY APPROVED !"SULA!!0N RG 1.82 TRANSPORT ANALYS:S LARGER STRAINER FLOW AREA FLOW SPLrITERS PURPOSE WAS TO REDUCE PUM? !NLET SWIRL GE AND BYRON JACKSON PERFORMED TESTS A.ND ANALYS! WH CH VERIF!D ACCEPTABL7Y OF DELET!0N UNTT 2 OPERAT!0N CONFIRMS ANALYSIS
o .' (N j - 2..... PBAPS UNIT.3 PIPE REPLACEMENT PROJECT 1 4 l-10LCFR 50.59 EVALUATION (CONTD.'. 1 BI-STABLE' FLOW - -(IEB'86-110) - EXACT CAUSE UNKNOWN BUT SEEMS TO CAUSED BY HIGH AP IN HEADER TEES COMPARED T0. TOTAL LOOP AP GE HA3 REVlBED PBAPS AND CONCLUDED PBAPS AP RATIO IS SMALL AND IS ACCEPTABLE-UTTLE DIFFERENCE FROM UN!T 2-FINAL VERIFICATION DURING PRE-0P TESTING y l = HYDRAUUC ANALYS!S T T l GE ANALYZED AND CONCLUDED THE CHANGES FROM UNIT 2-ARE VERY SMALL AND THERE WILL BE NEGUGIBLE FLOW DISTRIBUTION CHANGES
.x PBAPS UNIT.31 PIPE REPLACEMENT PROJECT a v J0. CFR 50.59 Ei'Al UATION. (CONTD...) 1 i HEAD SPRAY i y j NO CREDIT TAKEN IN UFSAR FOR. SAFETY FUNCTION. a ' LORIGlNAL PURPOSE IS ONLY:TO REDUCE HEAD [ . COOL DOWN TIME. N0:!MPACT ON HEAD VENT li DELEED BY. OTHER PLANTS CROSS TlE NO CREDIT TAKEN FOR ECCS OPERATION EQUAL FLOW DISTR!BUT!0N FROM ONE LOOP UNNECESSARY l 1 CURRENTLY LOCKED CLOSED L l l; I
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( n . TECHNICAL SPECIFICATION CHANGESL SEC. 4.6.E.2 - CROSS TIE VALVES
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TABLEL4.2 -DELETE HEAD! SPRAY LOGIC FUNCTION T 4 TABLE 3.7.1 - DELETE HEAD. SPRAY ISOLATION VALVES & 3.7.4 l 1 1 1 n -1 L i L p _---___zu-___------..1--------__ - - - - ^ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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- r; PBAPS UNIT 3 PIPE REPLACEMENT PROJECT-RESTORATION MAIN ATTEMPT IS TO REINSTALL IN ORIGINAL CONFIGURATION CHANGES WILL BE EVALUATED ON CASE BY CASE BASIS
' ALL MODS WILL BE PERFORMED IN ACCORDANCE WITH ASME XI 1: L_
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SUMMARY
~* 1 MATERIAL; UPGRADE FOR RECIRC, RHR, RWCU, & RPV DRAIN! SAFE END. REPLACEMENT & BUTTER INSPECTION 7 ASME Ill 80 EDITION WINTER 81 ADDENDA
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. DESIGN IMPROVEMENTS EXPERIENCED PERSONNEL UTILIZATION OF LATEST TECHNOLOGY AND INDUSTRY EXPERIENCE l 'l COMPREHENSIVE IN-VESSEL INSPECTION PROGRAM L l1 r .a
n p p LPBAPS UNIT 3 PIPE REPLACEMENT PROJECT + p n-L IN-VESSEL INSPECTIONS (CONTD...) y INSPECTION. MITIGATION -COMPONENT PLAN PLAN' JET PUMP SENSING'UNES . DAMAGE REPAIR N/A- -. REPAIR . VlBRATION RESONANCE TEST - CLAMPS'AS REQUIRED SHROUD HEAD BOLTS N/A - REPLACE L "Il JET PUMP HOLD DOWN N/A - REPLACE-BEAMS DRY TUBES VISUAL - REPLACE AS REQUIRED STEAM DRYER VISUAL - REPAlR AS REQUIRED CONTROL BLADES VISUAL - BUFFER MAINTENANCE - MODIFIED BLADES
y, 7 ~, L N i.' % '.;'m k l,._ "U' j l };;e.. 1 . PBAPS UNIT 3 PIPE REPLACEMENT PROJECT-1 IN-VESSE!. !NSPECTIONS. i 1 INSPECTION MmGATION COMPONENT PLAN PLAN ACCESS HOLE COVER UT- - - 00hTNGENCY CLAM?~ - HWC. \\;." TOPLGU!DE - lH -- REPATR AS' REQUIRED . ;I. r 7 4 ' CORE SPRAY SPARGER V!SUAL - CONT!NGENCY CLAMP ' CORE' SPRAY lhT.RNAL MSUAL - C0hTNGENCY MATERIA'. P!?E 'l \\ \\ w & 4,*.e,*ce. .e-
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