ML19308C026
| ML19308C026 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 03/03/1967 |
| From: | Carlton J BABCOCK & WILCOX CO. |
| To: | Taylor J BABCOCK & WILCOX CO. |
| References | |
| TASK-TF, TASK-TMR NUDOCS 8001170798 | |
| Download: ML19308C026 (3) | |
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- Ut rerence : Ik. : J. I:. T. : le" t e );. M. Steven.e, Fr:t r.;'rizer Tr:.r ;* nL. t qa rc.- er,ts, G10-0333-12G ? C;ted 2/9/;.*[.
i It recyacte J in iM ref :ct.c?
relt.tce t o pre:.wr rct*
ietter, the !"2110'.tinc inforutica ityn.icct recuf : 0~.ent:. :
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t.. ' c rit rein ! !. R ecribed
$ n y let '. a to L. L' L; ~.:.22: / of 11/.6/05 (scry etts.ch u a ).
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er tr. c..icn:h tur.:. h:.vc incienter:Recent dit:v,cicr.c rith Paul 1::'rr!c r fer tin 3nt, this tent;.
thet i.e inc!: criteria
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g' Initial conciderat3cno for quen;h tan!:
l aize were based on
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annucptjen of dicc*1arr.a of stcan voltore above noit:al unter level in preasurin:r (*,'00 f
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i Uc ni.te frco Conr.cctf ci.t Woheo T'f t r T.t,,n t 'ehat they ured e v(.lta.' b? c.:e n tW;a l 17: M.5 level r:4 the hi-b li l e.'c) trip (*.hi:: 10 :.hur f.03 ri.J Guensrce to c;uench
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I have exar:ined tho ova 13:.*b)e tran01ent t',r,te t o get t.n ntirate of cafety valve dit:cnarge cuantity.
Chia c!.our, the To11cuir:r,:
.i Mc La r e Volur.e
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Tranc!cnt 3
-its er Steen 1l l
He,d liit!:drcecl l
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' urbine Trf p i:ithout f.e.ne.cr CentPr.1 l
/.ctjen Ec.cctor Trip on Hidi Prenture 303 ft0 I
i Pwer Operated Heller Volvo Accur.ed 1
fcrnicekout' Trantient 270 ft3 s
hl I
I'f r,ures 1 tend 2 thew appo.tirate f.rercure end int. urge charecte-13ttec during 1 co withdrawn 3 rid turbine trit ellhout re ;ctor control
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'!o cctir.:te the r.ixhn blevdoun, it m. 3 c::cu:.c n that th<:
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tafety Myce D.:: ped sit W5] psiu and ror,cc ted :rt N0') pa to.
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Alco nf.soned preccuricer water icvel w o 200 ft?
4 Mater level.
over norrsl 1
i Steta diecher.yr was accured to occur free tir.e cafety valve j
prpped until precaurize:' incur ;c stepped.
r The otetn reic0Le due to v d ye blevdowr, was entirated by j
- siculsting equ111triv'4 pt-: curizer conditior.n r;t 24CO p013 and 2500 poi. ';he est$r :ted etcan rele:!e 10 e: tie ted to 4
be 1.5J ft A This Sc'inclu nd in the tetulation e.bove.
t 3.
Pig'me t 3 - 6 cttachea cho:, pressure distribution and ficu distritution crcuad the reactor tycten for:
i a)
All pumpn running.
i b)
J punpn r.nning.
c)
One fung ecch Icep running.
d)
'Ivo pur ps in one-loop nznning.
1 te that the precruce val *,es licted on the rigoNo include i
gravitaticM1 hced.
The f1cu distributien val ar. are race: t j
i 24074 (2:no Map). estimates and are baced ca 13tnghan curves 2 940 (U-Q) and J
i locked rctor at acro rps.Purp re ter:e flow values are based on l
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1 The ectireted naximun presuurizer oprey rote s c 7F, orn.
his f
cepacity is enti-Otec for riding threur.h 'bir4:cu*:' tran:1 cat without puer optrated prescurizer relf or ent! 'tithout higt j
scoure ceraf:.
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The preocure differentini availabic for pecccu.-tror upray and i
the approxicate spray rate ao related to punp coab2n!tions aro q
J.1 All pumps en
'7, 69.3 psi 750 cr:
j
.$.2 Three pu:.ps on a
j a)
Prescurizer in lo p A Purp 51 t o preccuri:ce
,e 27.8 pei 47ey cg n f ur.p va t o preocurizer 55.0 pai 673 O n i
Punp dj or 4 to proscuriter 47.0 psi 618 OP;!
i c.
1 b)
Preccurirer in loop B l
Punp (1 to t resourince 34.9 pai 532 O h'
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Purp v2 to J. ret ouricer 62.9 pai 714 0?M
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j Purep dj cr 4 to prescuriter 54.1 poi 66J GTM j
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!?..".0;I 3, 1957 43 M:o put:pa en - t::o 2n one lecp
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rrececr:rer in uon t.
l n!.* p J cr 2 to r.re:sturir P 1?.B pai J2? CM l
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- p.4 cr 4 tce pr: c:;9 ri m r 25.'J p:1 539 GIII 3'
b) l'recauriter 1. Loep B j
i Tt:':p 1 or 2 to prve. turi.a.or 22.4 751 420 UN i
Itnp 3 cr 4.to prennuri w r 45.4 p:1 607 GPM f
- .4 Two pucpa en - oca cach loop i
l l>rescurizer either Icop Pu m i-1 r>:* 4 to tr ar.uri::er 14.9 pri 938 GTM 1'
Punp //2 or.5 to preccuriser 49.8 pai 6;6 GTM For these enses the sprey ic cuffics:nt for rorcal nr.:.p load i
chen:cc (lo.$d de:reare::). i.c fa r a I kwr, criteric for i
cevere 3cr.d chantrec Mve r.ot heen eurtlf:hed for.encit,1cas t.htn there are na,jer G ulprmnt tu1(ute:tions.
i I UculG PNCO3e bettever, th: t tre nnint: sin atilitj-ccstditic::n frca three r urp operatic.1.to ride threcGh blackc:tt "
It tust be noted that the 750 OFM pr:ssurizer errey ficw requirencnt in based on prelisunary enulysic of the blackout I
ccnditicn free: full lord.
be obtained with power operated rel$ef valve (s) cet atPressurizer preature j
sprar (frca col *eup syntec;).Anether siternate uculd be to uce o cold
'j approxicately 2300 pai.
7ttic 6:0uld r Cute the cpray rate by a factor of d.5 to 0.
b g
Ur:e of po.fer op2rcted relief on the pressuriter uculd also I
i reduce e
.,00 GPM) prey '
uircts:nts by a factor of 2 5-2 (to cbout 250-
.I If you hcVe furthet estions, picaec cdvice.
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