ML20086S939

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Issue 1,Rev 1,to SI Accumulator Discharge Check Valves Full Stroke Test, Test Results Rept
ML20086S939
Person / Time
Site: Beaver Valley
Issue date: 12/13/1989
From: Cherry B, Jason West, Robert Williams
DUQUESNE LIGHT CO.
To:
Shared Package
ML20086S924 List:
References
1BVT-01.11.03, 1BVT-1.11.03, NUDOCS 9201060072
Download: ML20086S939 (12)
v • d • e


Text

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BEAVER VALLEY POVER STATION Unit N3. 1 Tcat R culto R:psrt

__ llH 01.11.03 Issue 1 Ert.1 Date Test Comnieted 12/09/89 TITLE SI Accumulator Discharge Check Valves Full Stroke Test TECH SPEC

REFERENCE:

4.0.5 t

PURPOSE:

The purpose of this test is to verify the full stroke capability of the Safety Injection Accumulator Discharge Check Valves, [SI 46. 49,Section XI, Subsec) tion IW 3520.50, 51, 52 and 53, in accordance with AS TEST RESULU

[)() Test Completed Satisfactory

[ } Unsatisfactory

[X) The following Problems were sucountered:

(See Attachment 1.)

[*] Correc';ive Action Taken :

(See Actachment 1.)

[X) Recommendations :

This test should be p.erformed at the berinnint of refueline outares in the future.

(See Attacht ent 1.)

[X) Attachments Prepared by:

m2er

/

4vj Date /J/ // / E7 REVIEW T&PP reviewer:

g h, Date \\Z /D. /99 k Procedure Properly Completed & Satisfactory d

( ] Comments APPROVAL 14 vel III:

g/

Date /JL / /3 /g

% Test Results Satisfactory & Approved N Comnents s+se w loNW Vr&$' n) LeuY1 h Wl> k' 8 b4se W

iY M /121

.1 ll

/

I Distribution

[ ] General Manager NOS (x) Unit 1 Ops. Superv.

(

Senior Engr,

[x] Ceneral Manager NO

[x] T&PP Superv. (3)

{

NED DCP File

[x) Tech. Serv. Manager

[x1 Principle Engr. (2)

DCP-lx) Director T&PP NED EQ Cord.

] Director Trng/Sim.

9201060072 911227 PDR ADOCK 05000334 p

PDR

L BVT 1.11.1 SI Accumulator Discharge Check Valves Full Stroke Test Test Results Report Att-7,nent 1 The S1 Accumulator discharge check valves were full stroke exercised per 1BVT 1.11.3 on November 18, 1989.

Prior to this axercising test the check valves were disassembled and inspected as recommended in NRC IE Notice 88-85 to determine the condition of the retaining block studs. The inspection revealed that the valves were in good physical condition and verified that the disks were free to move.

A leakage test was ther performed on the valves with satisfactory results.

1BVT 1.11.3 verifies full stroke by cosparing the actual accumulator pressure vs time curves for the accumulator blowdown to the pressure vs time curves calculated based on theoretical headless valuos.

If the condition of the check valves has deteriorated such that they are blocked shut or partially shut, the actual pressure vs time curves will be shifted l

to the ri ht.

The BVT also compares the actual flow rate obtained durin6 6

the blowdown to the calculated minimum flow required to full stroke open the check valves.

i On 11 18 89, the three SI Accumulators were blown down and the data gathered demonstrates the full stroke capability of the check valves:

1.

The actual pressure vs time curves are to the left and below the calculated curves.

2.

The actual flow rates are greater than the minimum flow required for full disk lift.

The flow peak rates calculated based on the change in Pressurizer level (Q(PZR)) and the pressure change in the Accumulators (Q(ACC)) for all three accumulators are summarized and compared with previous test j

results in the table below.

SI-TK 1A SI-TK-1B SI TK 1C Year Q(PZR)

Q(ACC)

Q(PZR)

Q(ACC)

Q(PZR)

Q(ACC) l (GPM)

(GPM) _ (GPM)

(CPM)

(CPM)

(GPM) am 15213 4200' p' 14113 7R 5040 13873 4440d.

10200 #14774 8400 N 16900 8160. 8 14275 6R 9300 nc% 11100 9230.,f%16880 4790 # 16560 SR 1

Although the flow rates based on pressurizer level change meet the acceptance crit '.ria,

they are much lower than the ones based on Accumulator presvre change.

This may be able to be attributed to the time in the outage that the test was performed. Usually the test is performed right after shutdown when the RCS is known to be completely filled.

During 7R this test was performed after refueling and the RCS may not have been completely filled, even though the normal precedure for filling and venting the RCS was followed.

This theory is supported by the 5R data.

SI-TK-1C was tested after refueling while the other two Accumulators were blown down right after shutdown during SR.

It 15 l

recommended that this test be performed right after shutdown in the future.

O

s.

The flow values using the Accumulator pressure change and the P V -P Y tt 22 relationship are comparable to the flows obtained in previous outages, especially when the lower initial Accumulator pressures of this 7R test are considered.

In summary, based on the pressure vs time curves and the calculated peak flow rates from this test, and supported by the disassembly of the valves during this outage the SI Accumulator Discharge check valves (SI 48, 49, 50, 51, 52 6 53) have been demonstrated cepable of full stroking.

l_ _ -... - -

X.

DATA SHEET 1 l

[SI TK-1A]

h Computer

__ Step No.

Description Value Point VII.A.2 tial Accumulator Pressure

/#d d PSIG PC(, IIA 1.,

PNV1 =

/3i.2 PSIA VII.A 3 Initial Accumulator Level 78 7T 7, L 06 /CA A

VII.A.4 Init RCS Pressure /ef 9)

/3.9d PSIG fod/7PA

+14.7 PNV2 = M. & 2 PSIA VII.A.5 Initial PZR Level b.7 *. indicated =

//.8 t, actual Lo ff8A VII.A.11 Time When [MOV SI-865A] NOT CLOSED

//JJo7 Time When [MOV-SI-865A] OPEN g e gy ej Time When [MOV-SI-865A] N0'" OPEN

/t. # VJ 7

Time When [MOV SI-865A] CLOSED

/0 5 / J7 MTC = Time From NOT CLOSED to NOT OPEN h

sec.

,k MOT = Time From NOT CLOSED to OPEN

,T Y sec.

g(y MCT = Time From NOT OPEN to CLOSED V

sec.

VII.A.14 Initial Accumulator Water Volume:

Accumulator Level 70,77 (Step 3) = 77]d gal for injec.

77Jh gal - 195 = "h M gal in accum.

8

+ 7.48 gal /ft WV1 = /884.OJf t8 VII.A.15 Nitrogen Volume in Accumulator Nddft VNV11 = 1451.2 - WV1 8

2 VII.A.16 Pressurizer Vater Volume

' Actual Pressurfter Level M (Step 5) = //d'O gat.

+ 7.48 WV2 =.Mo.cif t 8 VII.A.17 Nitrogen Volume in Pressurizer

//T7h/ ft VNVM = 1410.2 - WV2 8

=

Performed By -

/ / / -174'/

Verified By

/O-Le-89

. ISSUE 1 REVISION 1 l

1BVT 1.11.3 X.

LATASq[,U

[SI TX 1B)

Computer Step No.

Descriptien Value Posnt VII.B.2 Initial Ace.uto'ator Pressure

/'/(2_

PS10

['0/,P/4

+14.7 i

PV 1 =

/JY 7 PS!A l

VII.B.3 Initial Accumulator Level bMT%

ff t, #4 VII.B.4 Initial RCS Pressuro

/.', *k PS10 t'd 48?/

+14.7 TNV2 = rE#.7'!

PSIA VII.B.$

Initial PZR Level D

% indicated =

/C

% actual /.0 '8d4 V11.B.14 Time Vhan [MOV SI 86SB) NOT CLOSED ff/;p1,s?

Time When (MOV St 8658) OPEN

// c 1.N Time Vhen (MOV SI 86$8) NOT OPEN it, /v i i u Time Vhen [MOV St 86$8] CLOSED

// m J/

Mit = Time Prom NOT CLOSED to NOT OPEN M7 sec.

MOT = Time From NOT C14 SED to OPEN

/#

sec.

MCT = Time From NOT OPEN to CLOSED

/#'

sec.

Vll.B 17 Initial Accumulator Water Volumet Accumulator Level 7f,3F (Step 3) = $ [ gal for injec.

2AE_. sat 195 =.~12e *1 in aecu=.

t 7.48 gal /ft' WV1 = / 0/.7, D f ts VII.B.14 Nitrogen Volume in Accumulator VNV11 9 14$1.2 - VVV1

= Y.J7. 2 ft 8

VII.B.19 ial Pressuriser Vater Volume Actual Pressarizer Level _j l (Step $) = /// O gal.

+ 7.48 WV2 = / E7 /7tt' VII.B.20 Nitrogen Volume in Pressuriser VNV21 = 1410.2 WV2

/.'/J 43 f t'

=

Performed By d. /// /J.19 Verified By 1%/g M 28-ISSUE 1 REV!SION 1 H DLc6s acy

IBYT 1.11.3 X.

DATA SIIEET_3 (S! TX 1C)

Cotcput e r Step No.

Description Value

Point, VII.C.2 Initial Accumulstor Pressure

,,L '*/ (

PSIG l'C d d

+14.7 PNV1 = _IN!El PSIA V!!.C.3 Initial Accumulator Level 7 'd %

ANW V11.C.4 Initial RCS Pressure

_z / F/

PSIG

/'o '/9yA l

+14.7 PNV2 = dd PS !!.

VII.C.5 Initial PZR 1m el O

  • indicated =

/t

% actual Z C'/fd VII.C.14 Time Vhen [MOV SI 865C) NOT CLOSED

// r ?C Time V1.en [MOV SI 865C) OPEN yj' 4-Time When [MOV SI 865C) NOT OPEN a>>

,5 Time Vhen (MOV S! 865C) CLOSED a fr O HTC = Time From NOT CLOSED to NOT OPEN

_ OY sec.

MOT = Time From NOT CLOSED to OPEN

/a' sec.

MCT = Time From NOT OPEN to CLOSED

/s sec.

VII.C.17 Initial Accumulator Vater Volumet Accumulator Level ? M "/

(Step 3) = M fgel for injec.

9 W gal - 195 = M gal in accum.

6 7.48 gal /fd VVV1 = 1R YOy it' VII.C.18 Nitrogen Volume in Accumulator 4kkft VNV11 = 1451.2 VWV1 8

=

VII.C.19 Initial Pressuriser Vater Volume Actual Pressurizer Level

/0 (Step 5) =

/44 0 gal, i

  • 7.48 WV2 = /$1/7 f t' VII.C.20 Nitrogen Volume in Pressurizer VNV21 = 1410.2 - WV2

= ;.'.3 LJft' Performed By 7//$ j M ff Verifind By

%bC. /Mt. 89 ISSUE 1 REVISION 1

{N L O $ $ t 5T% 'J

18Y? 1.11.3 X.

DATA ShtET 4 A.

Flow h ($1 TK 1A)

PZR PZR TIME INDICATED ACTL'AL VATER av LEVEL LEVEL VOLUME 10 M t3

7. D g

iyeo A I5 "

'A'~'

d:s 4.C$

7, 9

_y;f p 'yc

/t: # /3

/ f. (, _

Aff

/700 O II "* '

W' h

}

g J4l1

.?C. 7 I]

.z$0

~ I ' " *

  • fe*'

\\

a

/t Jtd3 J9.}

23. 5 aus b I ' "' ' #
,i

&Mdj

)]. I

.?l, $

.3 co'O

~~

I'"*'

f !?'NJ3
  • /'l. b 3 i.$

.3./f p

/0 JIJY Q'b.T M d' A

l " *

  • U*

34 %

/5 sec.

/5 sec.

/5 sec.

/5 sec.

/5 sec.

/5 sec.

/5 sec.

/5 sec.

/5 sec.

)

PEAK YdO T h gal /sec N**

=

kU T

Q=

7 gal /sec *60 sec/ min Q = #dk gal /stn Performed By"Ithd / //*/ f-f 7 Verified by R/il-la -8%

30-ISSUE 1 REVISION 1 I

18VT 3-11.3 X.

DATA SHEET 4 (Continued) 8.

Flcw for ($! TK 18)

PZR PZA TIME INDICATED ACTt'AL VATER Ay LEVEL LEVEL v0LtmE Il 69 33

~I.I iD

/4/D ll:C93]

f. k' t0 i#O a

JCC

/% sec. * * *i'"'

//.07 D Y, x, s

/ /, 0

/t. 0 0 gf'l

//.(,

//

/srfb f

_J 7 0 /5 sec.

1f^*

/ bel,$!

/i.9

/LO A750 3

300 /5 sec.

<1 0 0 '

ll:c941 at. 0 22 p;3 p

+

ll: ID:03 d?.b Af5 2%50

(

/l. /C :CY 39,0 AY 3/t0

/5 sec.

/5 sec.

l

/5 sec.

/5 sec.

l

~

I

/5 sec.

i

/5 sec.

/5 sec.

l

/5 sec.

i

/5 sec, p4 -

G70/fsec,=

PEAK 7

gal /sec Q=

7#'

gal /sec *60 sec/ min

/

Q = YkMO sal / min Performed By J/ b /N T 4 7

/

l l

Verified By M/M6 09 31-ISSUE 1 REVISION 1

ilVI' 1.11.5 X.

DATA SHEET 4 (Continued)

C.

Flow b (81+TK 10]

, PER.

PZR TIME I)fDICATED ACn!AL VATER AV LEVEL LEVEL VOLLHE If

}ll37 33

~ Eu 2

/0

/*/00

/5 sec.

17

(/l3 7. 0%

"OO

/0 l'll0 Joo /5 see. fvaa g,

ll:3 7:0

7. 9 t.3

/ 70 0

~

JdD /t sec.'fV'*

M'

//:37A{

j'l.2

/ 4. 0-dOSO _

300_ /5-sec. ON bf;37:53 21.5 .2 0 JMD \\ .3 0 0 /5 sec. n e VI //:37:S$ 27,4 22.11 RUD 4p //. 3T' U J). '/ ab%- A V50 ^ 500 /5 soc. ]AOO /5 sec. /5 sec. /5 sec. t /5 sec. /5 sec. /$ sec. /5 sec. /5 sec. /5 sec. /5 sec. PEAK

_70 sal /sec Q

' 70 ^3st/sec *60 sec/ min Q = M/o0__ sal /sta - Performed By M///47~I7 Verified By ?>W /lf-1%-Bk-32-ISSUE 1 REVISION 1 en b . +. - tMr. .-t----,,,e#- nm,..-.,-...-.: . -,,,,-+.,-,...,,..,-,,..,-..,,. _ m..w. mm.. .,.,_,,m.., .~m.+

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i. -

,g 77 ! p$ '! '!i:N l:ll f-is Pma r ,Ps.ic? i, j ..t (d . C 'il I' id il t!N> pl, !. N! l i i ,,a m Y y.,.,.,,, q l i ~ j i.

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,-, 9, ...I w. ? - *,

  • 1i l

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i.!I. j-l-y ,, ; i;; ~ -~ ...l ,ii, i its,. l 4 dE / i*, ( 1 . e 4 4..., (, m i . fin

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  1. 4 y,,,, --

.g. , 7, l -{' g j,, j,, p). g,- g-i I8e i; 4 i i i I pl 7, ,4 .i '.4 8 .+ 4 tl l s 3 g + e t ? .g_ M. _s. Id <y} e eI t/ t 4-i -- j i y,i i l y a 1 ,1 i-i i.. A g.: /, e l i e e ,l 8 .I I g/ 3 3 ..i : . g; p; e . t w gj y . i i 1,.-* &.!1 L. ;- DQ = c ,.,. r.,ll !,., a ..I 1 e .l' a-I j ..l o > cc ../ gel gl l. i n t 9 l j f $I $ 'l{. 88I 9 g . a m I i f - i

    • a
y. -.. - -g f2 t-

<.} <- --~~~ 4. 6 a c ** d g,,

3.,

l) .t e e l g a :s e L { +.4 I w e I I ji I e-m O [, { S. 9 e' I m eo r li l i.t j ]l, E. e i j i ei 4 r g t2== 0m f,, { * $. h he ~ g" } ~I .u

  • "* h l4 4

a s r i My s. l M = 8 l'I l m( . i t o, O .,,l-.,,,,., +, 1 I. f < t. i t*:+ --~' lLi' l' J 4 1 2 ..g l 4 - i --- 3 3 s....

"I W R 1.11.3 II. F f cf tar & 0 ^ j A 1- {- ._ _ _ _. ~ _ 1 y- -c e 4- -g --_ _++_ +- 3 ..._-_-,m mc w Actual and Calculated h.4.._ .. + .3._ -.m_ _ _ _. ACcumuletof blowdown = 31.TE lc -~ . ~_-~. ' " _ _ _ -. ~. - O Actual Initiale1$d +~ A. Calculated Date 1/ Mf79 m ..a o n. ., 3 ,m v ....._..e y _.w._.._ ,,, eq O _las -_. ~ - so b o ~ 1 y ~. \\\\ - 4 = . \\\\ _ _p_ 3 I r _. . gp d 1 i 1 i,'t_ r. y_ I .4 .i m._ 1 1 u 1 \\ a t \\- 1 _+ ]_\\ I 3 c ( 1-i L 6K i ~^ \\ t_ \\%' - _\\ ---t-+---- i i ( i .f _ \\ 1 .. _ - ~. e t. i

\\

.e.., 1 .\\ A ._. ~ g, . - pg [i _.Lv g; \\ l \\ S C t- - e 1 s dy! -\\ t ~~ Q \\- i p . x 1 m 2$ %* V \\ ~ w. y \\ - 3 \\ __ A_ - 1 g W i i y _4 _ P_ _ _ p- - - g =- 4._. 1 _.g m _..g. _ p. __ } q. y ~\\ _..+ _..p.- g ...r... ,.. r... ....M./M 7%y = -. -V.-ML -_.p 4.__ 1 y ... = -... 9 f0

34. e Time (6ec)

W 158tTE l u REY!81004 1 .}}

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