ML19210D089
| ML19210D089 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 11/06/1979 |
| From: | FLORIDA POWER CORP. |
| To: | |
| Shared Package | |
| ML19210D080 | List: |
| References | |
| SP-429, NUDOCS 7911200512 | |
| Download: ML19210D089 (12) | |
Text
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Rev. O' 11/1/79
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- - -. _.,...._....-._..._..._ ___ J SURVEILLANCE PROCEDUPd SP-429 FLORIDA POWER CORPORATION CRYSTAL RIVER UNIT 3 WASTE GAS SYSTD1 LEAK RATE TEST REVIEWED BY:
Plant Review Coumittee (8.k Date
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Meeting No.
W-43 APPROVED BY: Nuclear Plant Manager 11) vafan 64 i
]/1 7911200
1.0 SURVEILLANCE REQUIREMENTS 1.1 The leak rate of the waste gas system shall be mea-sured at least once cach refueling interval. This test has been written to allow independent or simul-taneous testing of the waste gas system in three separate sections.
Section 6.6 deals with the vent header, Section 6.7 details procedures for testing the compressors and associated high pressure piping, and Section 6.8 covers the decay tanks and associated inlet and outlet manifolds.
- 1. 2 TECHNICAL SPECIFICATION REFERENCES Technical Sury. Req'd.
Mode Surv.
Freq.
Specification During !! odes Notes Freq.
Notes NUREG-0578 5 and 6 R
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(NRR lessons learned)
MODE NOTES: None SURVEILLANCE FREQUENCY:
R - At least once per 18 uonths.
FREQUENCY NOTES: None 2.0 ACCEPTANCE CRITERIA To be furnished at a later date.
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3.0 REFERENCES
NEEDED TO DO PROCEDURE 3.1 FPC Dwg. #FD-302-691 3.2 OP-412, Waste Gas Disposal System 4.0 c."ECIAL CONDITIONS OR REQUIRE!IENTS Initials 4.1 Any operation requiring the support of the waste gas system must be suspended during the performance of this test.
4.2 System pressures must be stabilized for a period of 15 min. prior to the start of leak collection data taking.
4.3 If at any time during the performance of this ttst Plant Operations requires unanticipated use of the
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waste gas system, the test shall be terminated and the system returned to normal operation per OP-412, Waste Gas Disposal System.
4.4 If at any time during the performance of this test a leak rate in excess of the acceptance criteria is observed, terminate the test and repair as necessary.
Af ter repairs have been. completed, restart the test.
4.5 Pressure in the vent header must not exceed 2 psig to prevent leakage through the loop seals.
4.6 Radiological control required during the per fo rmance of this test will be established by Radiation Work Pe rmit (RWP).
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4.7 The waste gas sample system shall remain in normal operation during the performance of this test.
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4.8 One waste gas decay tank is at a pressure of 80 psi or as high as possible and one of the remaining tanks is at a pressure sufficient to pressurize the system between WDV-397 and the compressor inlet to a pressure i
of 2 psig. The outlet piping of the compressors to e
l the inlet valves of the waste gas decay tanks will be pressurized to 80 psig by running the compressors only.
4.9 Threaded valves and nipples have been installed in the
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top of the sightglasses on each of the waste gas com-pressor seal separator tanks.
O 5.0 EQUIPMENT REQUIPdD 5.1 Soap bubble solution approved for use on stainless steel piping and components.
Nitrogen (N ) bottle with pressure regulator and flow 5.2 2
meter calibrated in "scfh".
5.3 Fittings and calibrated test gauges as required by (Figures 1, 2, and 3).
6.0 PROCEDURE Initials b.1 Verify that all special conditions or requirements as called foc by Section 4.0 of this procedure are
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complete.
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- 6. 2 Notify the Shif t Supervisor that the test is to begin and of the nature of the test.
6.3 Verify that the waste gas system and waste gas sampling system are configured for normal op. ration per Valve Check List I of OP-412, Waste Gas Disposal System.
- b. 4 Assemble the low pressure test rig (LPTR) and connect to WDV-479 per Figure 1 of Enclosure 1.
6.5 Pressurize N2 test rig to approximately 10 psig and assure zero leakage.
6.6 Perform the leak rate test on the vent header as follows:
6.6.1 Place the control switches for the waste gas
["I compressors (WDP-1A and IB) in the " Pull-to-Lock'*
position and close the suction valves (WDV-384 and 385).
6.6.2 Close nitrogen supply valves NGV-47, 44, and 174.
NOTE:
Tank level indication will be lost at this point.
6.b.3 Pressurize the vent header to 2 psig from one of the waste gas decay tanks by increasing the set points on pressure regulating valve RDV-397 and opening UDV-393, 394, or 395 on tank 3A, 3B, or 3C, respectively.
NOTE:
Instrument Technician may be required to perform this step.
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6.6.4 Set the LPTR co maintain 2 psig by venting a small amount of N2 gas while adjusting the pressure regulator.
6.6.5 Close the vent on the LPTR.
6.6.6 Close the instrument air supply to WDV-397 and* 396 and assure they "f ail closed".
6.6.7 Open WDV-479 and allow 15 min. for the header pressure to stabilize at 2 psig.
6.6.8 Record the initial data required by Data Sheet 1.
6.6.9 tiaintain the vent header pressure at 2 psig for a period of not less than I hr.
6.6.10 At the conclusion of the test, close WDV-479.
6.6.11 Record the final data required by Data Sheet 1.
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6.6.12 Determine the vent header leak rate as shown by Data Sehet 1.
6.6.12.1 If leakage is excessive, locate and repair as necessary.
6.6.13 Disconnect the LPTR and restore the vent header to normal operation as follows:
6.6.13.1 Open waste gas compressor suction valves WDV-384 and 385 and restore the compressor to normal operation.
6.6.13.2 Reset pressure reducing valve WDV-397 as required by Section 5.0 of OP-412, Waste Gas Disposal System.
6.6.13.3 Restore the instrument air supply to WDV-396 and 397.
6.6.13.4 Open NGV-47, 44, and 174 NOTE: Tank level indication will return to normal at
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this point.
Page 5 SP-429 Date 11/1/79 Rev. O
(j) 6.6.13.5 Verify normal system lineup per OP-412, Waste Gas Disposal System.
- b. 7 Perform the leak rate test on the waste gas compressors and discharge piping as follows:
6.7.1 Close waste gas decay tank inlet valves WDV-390, 391, and 392.
6.7.2 Place the control switches for the waste gas compressors (WDP-1A and IB) in the " Pull-to-Lock" position and close the suction valves (WDV-384 and 385).
- b. 7. 3 Assemble the high pressure test rig (HPTR) per Figure 2 of Enclosure 1.
b.7.4 Connect the HPTR to the fittings provided on the waste I"5 gas compressor seal separation tank sightglasses.
6.7.5 Pressurize the HPTR to approximtely 80 psig and assure zero leakage.
6.7.6 Adjust the pressure regulating valve on the HPTR to uaintain 80 psig while venting a small amount of N2 gas from the vent on the HPTR.
- 0. 7. 7 Close the vent on the HPTR.
6.7.8 Open the isolation valves on the HPTR attachment fittings at both waste gas seal separator tanks.
6.7.9 Allow 15 min. for system pressure to stabilize.
b.7.10 Record the initial data required by Data Sheet I.
6.7.11 thintain the waste gas compressor and discharge piping pressure at 80 psig foe a period of not less than 1 O
hr.
1371 196.
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6.7.12 At the conclusion of the test, close the isolation valves on the HPTR attachment fittings at both waste gas seal separator tanks.
6.7.13 Record the final data required by Data Sheet I.
b.7.14 Determine the waste gas compressor and discharge piping leak rate as shown on Data Sheet I.
6.7.14.1 If leakage is excessive, locate and repair as necessary.
6.7.15 Disconneut the llPTR and restore the waste gas com-pressors and discharge piping to normal operation as follows:
6.7.15.1 Open the inlet valve to the waste gas decay tank to be placed in service for waste gas collection, WDV-390, 391, or 392 for 3A, 3B, or 3C, respectively.
6.7.15.2 Open waste gas compressor suction valves WDV-384 and 385 and restore the compressors to normal operation.
b.7.15.3 Verify normal system lineup per OP-412, Waste Gas Disposal System.
- 6. 8 Perform the leak rate test on the waste gas decay tanks (3A, 3B, and 3C) and their associated inlet and outlet manifolds as follows.
NOTE:
These tanks should be tested when at their highest pressure (approximately 80 psi ) and d
in the decay mode of operation.
This will allow for testing at a time when the leak (b
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("5 rate will be the highest and N2 use will be the least to achieve test pressure of 80 psig.
6.8.1 Connect HPTR to the respective pressure transmitter piping drain valve as shown on Figure 3 of Enclosure 1.
6.8.2 Pressurize !!PTR to approximately 80 psig and assure zero leakage.
u.8.3 Adjust the pressure regulating valve on the liPTR to maintain 80 psig or tank pressure while venting a small amount of N2 gas from the vent on the llPTR.
6.8.4 Close the vent on the llPTR.
6.8.5 Open the isolation valve on the llPTR.
6.8.6 Allow 15 min. for system pressure to stabilize.
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6.8.7 Record the initial data required by Data Sheet I.
- 6. 8. 8 lbintain test pressure (approximately 80 psig) for a period of not less than I hr.
6.8.9 Record final data as required by Data Sheet I.
b.8.10 At the conclusion of the test, close the ilPTR isola-tien valves.
6.8.11 Determine leak rate of the waste gas decay tanks and associated manifolds as shown on Data Sheet I and record.
6.8.12 Disconnect ilPIR and assure normal system lineup per OP-412, Waste Gas Disposal System.
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- 6. 9 Sum the individual leak rates as determined by Step 6.6.14, 6.7.14, and 6.8.11 and record on Data Sheet I.
6.10 Notify the Shif t Supervisor of test coupletion and of the results of the test.
1.0 ENCLOSURES Figures 1, 2, and 3 Data Sheet I 1371 199 m
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ENCLOSURE 1
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Figure 1 (LPTR)
I Calibrated Test Gage h
Calibrated Test g (0-10)
Gage (0-3000)
Wp479 Bottle Press 7
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v yc x
Regulator Flow Meter (SCFM)
X tl Vent 2
Fiaure 2 (HPTR)
Calibrated Test Gage Calibrated Test e (0-100)
Gage (0-3000) y Bottle Pres J['
M Fittings to be provided U
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v on Waste Gas Coraprescor Regulator Flow Meter Seal Separator Tank (SCFM)
M
-Sight Glasses t
p Vent N2 Fiaure 3 (HPTR)
Calibrated Test Gage Calibrated Test Gage (0-3000) #
% (0-100)
Bottle Press k][
M Drain valves on press transmitter piping for Regulator Flow Meter (SCFM)
PT-16, PT-17, or PT-lf; g
for decay tanks 3A, 3B, or 3C, respectively.
g Vent
' tig om o
'g-S.
a w Ju o
Ju a
,!O i'
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OATA SI:EET I Total Systbr.
Initial Leak Rate Test Procedure Section 6.6 6.7 6.8 Tice Started g
Time Ended OO Press of 11 Supply at Start (P )
W 2
j Press of fl Supply at End (P )
2 2
E5'50 Regulato-Flow Reading at Start (Qj) b cd Regulator Flow Reading at End (Q )
2 W
Pressure of Section Being Tested Bottle Content in Std. Cu. Ft. (Vstd) b "a
prercure c' D:t'd Bottle Pressure When Full (Pstd)
Leak Rate
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v (1)
Determine bottle content (Vj) at beginning of test by.the following method:
V) = (Pstd)(Vstd)
P3 (2) Determine bottle content at end of test by the following method:
V2 = (Pstd)(Vstd)
P2 (3), Determine the volume of gas used by subtracting V2 from Vj.
Compare with Qj-Q2 to ensure x
no pross error exists in measurements.
D (4)
Cc+2rmine leak rate by dividing the volume used by the time of the test.
ke 3
V Ei D
Signature en
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Date Page 11 SP-429 Date 11/1/79 Rev. O