ML20204H469

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Rev 14 to Procedure OI-20, Resin Transfer Cask & Resin Storage Tank - T112
ML20204H469
Person / Time
Site: Point Beach  NextEra Energy icon.png
Issue date: 06/26/1984
From:
WISCONSIN ELECTRIC POWER CO.
To:
Shared Package
ML20204H448 List:
References
OI-20, NUDOCS 8411120299
Download: ML20204H469 (20)
v • d • e


Text

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s Date OI-20 OPS Supervisor MINOR L OPS Office Records Revision 14 Updated 06-26-84 RESIN TRANSFER CASK & RESIN STORAGE TANK - T112 1.0 PURPOSE, The purpose of this operating instruction is to provide instructions to accomplish the following jobs related to the handling of spent resin:

1.1 Dewatering and disconnecting the resin storage tank T112 from resin transfer line.

1.2 Transfer of storage tank (T112) and cask from short line to transfer stand.

1.3 Transfer of resin from storage tank T112 to waste tank T110.

1.4 Transfer of storage tank (T112) and cask from transfer stand to the short line.

1.5 Connecting the resin storage tank T112 to resin transfer lines.

2.0 PRECAUTIONS & LIMITATIONS

'2.1 The resin storage tank til2 and transfer cask should be treated as highly radioactive and contaminated. Perform a health physics survey prior to any work to determine radiation and contamination levels.

2.2 The maximum design pressure of the resin storage tank T112 is 150 psig. Do no" exceed this pressure. Note that the code safety is set at 150 psig and relieves into the transfer cask.

2.3 Ensure cask liner pressure is reading zero psig prior to disconnecting flexible fill and vent connections.

2.4 Do not transport the resin transfer cask over the spent fuel pit.

Observe posted regulation.

2.5 Use only appropriate wire rope slings and shackles. Note the transfer cask weighs 21 ton and the storage tank full weighs approximately 3 ton for a total of 24 ton.

2.6 The storage tank outlet line protrudes from the bottom of the cask approximately six to eight inches. Exercise extreme caution when lifting off or setting down the cask to prevent damage. .

2.7 Ensure that the resin transfer duct fans are operable during freezing weather, and never leave water and/or a resin water mixture in the

( transfer line or dewater rinse line.

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01-20

<{ Page 2 3.0 INITIAL CONDITIONS Initials 3.1 Obtain a radiation work permit.

3.2 Obtain a red tag series in preparation for disconnecting the resin storage tank as follows: (Install as required)

WL-1680 Resin storage tank T112 fill . . . . . S WL-1681 RMW flushing water to resin storage tank T112 . ........... . S WL-1697 Resin storage tank T112 vent . .. . . S WL-1682 Service air te resin storage tank T112 inlet . . ....... ... . S 3.3 Indicate which demineralizers have been sluiced to the storage tank T112, since it was last transferred to T110 or a shipping liner.

Demineralizer Volume Transferred

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i 4.0 PROCEDURE COMPLETION SIGNOFFS l 4.1 Dewater and disconnect the spent resin cask per

! Attachment "A".

4.2 Move resin storage tank T112 with cask from short line (El. 8') to transfer stand (El. 67'), Attachment "B".

4.3 Transfer of resin from storage tank T112 to:

l 4.3.1 Atcor waste tank T110 per Attachment "C".

4.3.2 Truck shipping liner via Atcor bypass line per Attachment "F".

L l 4.4 Move resin storage tank T112 with cask from the transfer l stand (El. 67') to the short line (El. 8'),

Attachment "D".

4.5 Connecting the resin storage tank T112 to the demineralizers resin dump line, Attachment "E".

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OI-20 ,

Page 3 ATTACHMENT "A"

. DEWATERING & DISCONNECTING RESIN STORAGE TANK T112 4.1 PROCEDURE Initials 4.1.1 Shut and red tag resin storage fill valve WL-1680, and reactor makeup water flush valve WL-1681.

4.1.2 Check open resin storage tank vent valve WL-1697.

4.1.3 Check service air regulator isolated, then open service air valve WL-1682 and connect the air hose (located -

above the cask).

4.1.4 Open the service air regulator inlet and adjust the regulator setting to 25 psig, then open the regulator outlet valve. Watch the resin storage tank pressure gauge closely. (Relief set at 150 psig)

NOTE: UNDER NORMAL DEWATERING CONDITIONS PRESSURE WILL SLOWLY INCREASE UNTIL AIR PRESSURE IS SUFFICIENT TO START MOVING WATER FROM LINER TO WASTE HOLDUP

[ TANK WHICH AT THIS TIME A SMALL DROP IN PRESSURE

\ WILL BE NOTED AS THE CASKS STARTS DEWATERING. .

( AFTER AMPLE TIME, CHECK TO SEE IF DEWATERING ,IS COMPLETE BY SHUTTING AIR REGULATOR INLET VALVE AND OBSERVE LINER PRESSURE GO TO ZERO PSIG WITH-IN A FEW MINUTES. DEWATERING REMOVES WATER IN THE UPPER SECTION OF THE CASK ONLY, THE VENT RESIN RETENTION ELEMENT IS LOCATED APPROXIMATELY ONE FOOT FROM THE TOP OF THE TANK.

4.1.5 Once it has been determined that the liner has dewatered, shut the service air regulator isolation valves. Red tag shut service air valve WL-1682 and disconnect the air hose jumper at the connection near WL-1682 only.

4.1.6 When the liner pressure gauge indicates zero psig, shut and red tag liner vent valve WL-1697.

4.1.7 Disconnect the flexible fill and vent hoses. Install j

camlock male caps on the flexible hoses and female caps on the resin storage tank connections.

Date Operations Supervisor (Also Step 4.1, Page 2) ke

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OI-20 Page 5 ATTACHMENT "B" TRANSFER FROM SHORT LINE TO STAND 4.2 PROCEDURE Initials 4.2.1 Check the following items on the storage tank and cask prior to movement.

WS-34 Storage tank outlet valve Locked shut Storage tank oulet Capped and Locked Storage tank vent Capped Storage tank fill Capped Storage tank rinse Capped and Locked Main hoist upper limit switches are operating properly Crane controls are operating properly The sling and shackles have been visual inspected and are acceptable .

Crane operator and lift assistant have reviewed the safe load path for the resin cask movement Check all closure bolts installed and 8 ton shackles installed 4.2.2 Move short line trolley and cask to the lifting ~

location. .

4.2.3 Rig the 1" x 30' wire rope slings to the PAB large hook and cask shackles.

CAUTION: WATCH RIGGING CLOSELY, DO NOT CROSS SLINGS IN ANY FASHION.

4.2.4 Remove the north section of handrail of the transfer stand (El. 67').

4.2.5 Pick up the resin storage tank T112 and cask from the short line approximately one inch. Check for level.

If not level, set cask down and adjust the rigging.

CAUTION: THE TANK OUTLET LINE PROTRUDES FROM THE BOTTOM OF THE CASK, ENSURE THAT PROPER ALIGNMENTS ARE MADE WITH RIGGING PRIOR TO LIFTING OR SETTING DOWN.

4.2.6 Follow the designated safe load path, move the resin storage tank T112 and cask from the short line to the transfer stand.

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OI-20 Page 6 ,

Attaclunent "B", (Cont'd.] Initials 4.2.7 Set the resin storage tank T112 and cask on the transfer stand. Install one (1) bolt in the earth-quake restraints.

4.2.8 Install the north section of handrail of the transfer stand (El. 67').

Date Operations Supervisor (Also Step 4.2, Page 2) 1 T

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OI-20

, Page 7

. ATTACHMENT "C" RESIN TRANSFER FROM STORAGE TANK T112 TO WASTE TANK T110 4.3 PROCEDURE Initials 4.3.1 Energize the Atcor solidification system control panel (key switch on) and turn on the. resin transfer line duct fans, verify flow in the duct. (Allow at least 30 minutes for the duct to warm up.)

4.3.2 Ensure that the vaste tank T110 is empty by either of the following methods:

Open tank manvty and visually check the tank or check the remote level indication (LI-1101). Preferably use both methods if radiation levels in the tank compartment allow the visual inspection.

4.3.3 Check electrical controls as follows:

(Auto-Off-Manual) switch in Manual

( -

Interlock switch in Interlocks on All valves indicating Shut Waste tank low level alarm Energized All motor control center breakers Closed 4.3.4 Open WS-A0V-14 waste tank T110 resin inlet valve.

4.3.5 Shut the flush connection valve at WS-A0V-14. ,

! 4.3.6 Record waste tank (T110) room radiation level.

RI-1102 mR i

4.3.7 Survey the transfer cask openings and record radiation levels:

Fill connection mR

! Vent connection mR

, Rinse connection mR I

outlet connection mR 4.3.8 Unlock the storage tank (T112) outlet line camlock l . cap. Using a plastic bag, remove cap, carefully l collecting any liquid or resin. Monitor operation l

with rad-detector.

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OI-20

. Page 8 Attachment "C", (Cont'd.) Initials 4.3.9 Connect the tank outlet line to the flexible hose and lockwire the camlock connector in the attached position.

4.3.10 Remove camlock caps from the storage tank (T112) fill and vent connections.

CAUTION: RELEASE CAPS SLOWLY. STAY CLEAR ABOVE CAPS.

4.3.11 Connect the tank vent line to PI-1120 vent hose rig and lockwire the camlock connector in the attached l position (see Figure 1).

4.3.12 Connect the tank fill line to the reactor makeup water /

dewater hose rig and lockwire the camlock connector in the attached position (see Figure 1).

4.3.13 Connect service air jumper to PI-1120 vent hose rig (see Figure 1).

4.3.14 Shut the resin transfer line flush connection valve at WS-34.

4.3.15 Slowly pressurize the resin storage tank to full service air pressure (approximately 95-105 psig).

Check fittings on tank continuously, while pressurizing, for leaks.

t 4.3.16 Statien an operator at the Atcor panel to observe the

! changes in waste tank levels and radiation levels during the transfer and rinse operation. Use FM radio i communication if available.

l

! 4.3.17 When the storage tank (T112) is fully pressurized, shut WS-37.

4.3.18 Unlock and open the storage tank (T112) outlet . valve '

l WS-34. Observe PI-1120 pressure rapidly decreasing and waste tank T110 level increasing (LI-1101).

[ NOTE: THE TRANSFER SHOULD REQUIRE APPROXIMATELY

! 8-12 MINUTES. THE ATCOR PANEL OPERATOR SHOULD

! HEAR AIR VENTING IN THE WASTE TANK ROOM WHEN l THE TRANSFER IS COMPLETE.

l NOTE: APPROXIMATELY 1-2 CUBIC FEED OF RESIN WILL

REMAIN IN THE TANK FOLLOWING THE ABOVE STEP.

THE REMAINING RESIN IN THE TANK AND TRANSFER LINE WILL BE RINSED OUT.

l . -__.... _ - _ _ - _ - - . .- .

OI-20 Page 9 Attachment "C", (Cont'd.) Initials 4.3.19 Line up the waste feeder pump P141 to dewater the waste tank T110. Use this water to rinse the storage tank T112 and transfer line back to the waste tank T110 (closed loop). (Reference Atcor Dwg. 2175-D-01)

WS-A0V-2 Dewater valve . . . . . . . . .. O WS-A0V-3 Dewater valve . . . . . . . . . . O WS-A0V-4 Dewater valve . . . . . . . . .. O WS-AOV-5 Dewater valve . . . . . . . . . . O WS-AOV-6 P141 dewater suction . . . . . .. O WS-AOV-12 P141 dewater discharge . . . . .. O WS-A0V-8 Storage tank rinse . . . . . . .. O WS-36 Storage tank rinse . . . . . . .. 0

.WS-41 DI/RMW supply . . . . . . . . .. O WS-18 P142 discharge . . . . . . . . .. S WS-39 Dewater to floor drain . . . . .. S WS-35 RKW rinse . . . . . . . . . . .. S i Check PI-1121 pressure more than 20 psig. Seal water for P141 and record, check WS-41 open. psig j 4.3.20 Start P141 and observe PI-1118 pump discharge pressure

- V 15-30 psig. Check rinse hose at storage tank for flow noise, or throttle WS-36 to verify that flow has been established by observing P141 discharge pressure increase. Do not leave WS-36 throttled.

4.3.21 Continue the closed loop dewater rinse cycle until the storage tank radiation levels stabilize.

i (Minimum 20 minutes). Record radiation levels.

Fill connection mR Vent connection mR

! Rinse connecticn mR Outlet connection mR 4.3.22 Secure P141.

4.3.23 This step will blowdown the water in the dewater rinse line and the resin transfer line.

WS-34 Storage tank T112 outlet . . . . . . S WS-AOV-11 P141 discharge flush . . . . . .. O WS-36 Storage tank rinse . . . . . . .. S i

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'/ Page 10 Attachment "C", (Cont'd.) Initials

- Pressurize the storage tank to approximately 15 psig using service air. When pressurized, open WS-36 and blowdown the dewater rinse line to the waste tank by back flowing through the devatering screens.

Shut WS-36.

Repressurize the storage tank to 15 psig and open WS-34, blowing down the resin transfer line and depressurizing the storage tank.

4.3.24 Disconnect the service air jumper hose used for pressurizing the storage tank and open WS-37 allowing the tank to totally vent to atmosphere.

4.3.25 Return all solidifcation system control valves to the shut position (green board at panel).

4.3.26 Shut and lock WS-34 storage tank ou,tlet valve. .

4.3.27 Using a plastic bag to collect any liquid or resin, disconnect the resin transfer line from the storage tank. Install the male camlock cap in the resin .

\ transfer line and the female camlock cap on the

' storage tank outlet line and lock this cap.

4.3.28 Check storage tank (T112) pressure at zero psig

' (PI-1120), then discor.nect the hose rigs from the fill and vent connections. Bag the hose connections and store on the handrail. Install the female camlock caps on the fill and vent connections. Shut WS-37.

4.3.29- Secure the resin transfer line duct fans.

Comunents:

Operations Supervisor (Also Step 4.3.1, Page 2)

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OI-20 Page 11 ATTACHMENT "D" MOVE STORAGE TANK & CASK FROM TRANSFER STAND TO THE SHORT LINE 4.4 PROCEDURE Initials 4.4.1 Check the fo~11owing items on the storage tank and cask prior to movement.

WS-34 Storage tank outlet valve Locked Shut

, Storage tank outlet Capped and Locked-

. Storage tank vent Capped Storage tank fill Capped Storage tank rinse Capped and Locked Main hoist upper limit swtiches are operating properly Crane controls are operating properly J The sling and shackles have been visual inspected and are acceptable Crane operator and lift assistant have reviewed the safe load path for the resin cask movement Check all closure bolts installed and 8- ton shackles available

\

Remove any bolts from the earthquake restraints.

4.4.2 Rig the 1" x 30' wire rope slings to the PAB large hook and the cask 8-\ ton shackles.

CAUTION: WATCH RIGGING CLOSELY. DO NOT CROSS SLINGS IN ANY FASHION.

4.4.3 Remove the north section of handrail of the transfer stand (El. 67').

4.4.4 Pick up the resin storage tank T112 and cask from the transfer stand approximately one inch. Check for level. If not level, set cask down and adjust the rigging.

CAUTION: THE TANK OUTLET LINE PROTRUDES FROM THE BOTTOM OF THE CASK. ENSURE THAT PROPER ALIGNMENTS ARE MADE WITH RIGGING PRIOR TO LIFTING OR SETTING DOWN.

OI-20 Page 12 Attachment "D", (Cont'd.) Initials 4.4.5 Follow the designated safe load path, move the resin storage tank Tll2 and cask from the transfer stand to the short line.

4.4.6 Install the north section of handrail of the transfer stand (El. 67').

4.4.7 Nove short line and cask to fill location. Check mark on track and southwest wheel aligned (green tape).

Date Operations Supervisor (Also Step 4.4, Page 2) 4 i

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OI-20 Page 13 ATTACHMENT "E" CONNECTING THE RESIN STORAGE TANK T112 TO THE DEMINERALIZERS RESIN DUMP LINE 4.5 PROCEDURE Initials 4.5.1 Check the short line in the normal hookup position.

4.5.2 Remove the female camlock caps from the storage tank fill and vent connection and the male camlock plugs from the fill and vent lines, being careful to ~

collect any liquid or resin in bags when removing these plugs.

4.5.3 Connect the flexible fill and vent hose to the tank and lockwire the camlock connectors in the attached position.

4.5.4 Clear the disconnected red tags and obtain the connected red tag series as follows:

WL-1697 S.torage tank vent . . . . . . . . O k WL-1681 RMUW flush . . . . . . . . . . . . S WL-1682 Service air to storage tank . . . S Rail trolley breaker . . . . . . . 0 4.5.5 Check shut WL-1680, spent resin to storage tank.

4.5.6 Check shut the service air regulator outlet valve.

, 4.5.6 Notify the Duty Shift Superintendent that connection is complete.

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OI-20

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OI-20

/ Page 15 ATTACHMENT "F" RESIN TRANSFER FROM STORAGE TANK T112 TO SHIPPING LINER ON TRUCK VIA ATCOR BYPASS LINE 4.6 PROCEDURE Initials CAUTION: THIS PROCEDURE CAN BE USED ONLY WITH AN OPEN TOPPED SHIPPING LINER.

4.6.1 Energize the Atcor solidification system control panel (key switch on) and turn on the resin transfer line duct fans, verify flow in the duct. (Allow at least 30 minutes for the duct to warm up.)

4.6.2 Check electrical controls as follows:

(Auto-Off-Manual) switch in Manual Interlock switch in Interlocks on All valves indicating Shut Waste tank low level alarm Energized All motor control center breakers Closed

(- 4.6.3 Check shut WS-A0V-14, WS-17, and flush connection valve at valve WS-A0V-14.

4.6.4 Remove spool piece downstream A0V-14 to the Atcor tank T110 and connect resin bypass-line to AOV-14 flange.

4.6.5 Connect resin dump hose (or insert into truck liner, tie down if necessary).

4.6.6 Connect dewater pump to truck liner dewater connection.

Use 1" noncollapsible hose and camlock fitting to ensure

,no air inleakage.

4.6.7 Place mirror / stand on cask to provide for viewing from low radiation area. (Mirror normally located in waste gas compressor room.)

[ 4.6.8 Connect the tank outlet line to the flexible hose and l lockwire the camlock connector in the attached position.

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OI-20 Page 16 Attachment "F", (Cont'd.) Initials 4.6.9 Remove camlock caps from transfer cask T112 vent and rinse lines.

CAUTION: RELEASE CAPS SLOWLY. STAY CLEAR FROM ABOVE CAPS WHEN LOOSENING CAPS.

4.6.10 Connect the tank vent line to PI-1120 vent hose rig and lockwire the camlock connector in the attached position (see Figure 2).

4.6.11 Connect tank rinse line to the reactor makeup water /

dewater hose rig and lockwire the camlock in the attached position (see Figure 2).

4.6.12 Connect service air jumper to PI-1120 vent hose rig (see Figure 2).

4.6.13 Shut the resin transfer line flush connection valve at WS-34.

4.6.14 Position personnel with FM radios at: ,

k a. Resin transfer cask T112, El. 66'

b. Atcor panel at WS-A0V-14 control switch
c. Auxiliary building truck access at truck liner.

4.6.15 Position Health Physics personnel for monitoring.

4.6.16 Slowly pressurize the resin storage tank to full service air pressure (approximately 95-105 psig).

Check fittings on tank continuously, while pressurizing,'for leaks.

4.6.17 When the storage tank (T112) is fully pressurized, shut WS-37.

4.6.18 Open WS-AOV-14.

CAUTION: SHOULD ANY PROBLEMS BE ENCOUNTERED DURING TRANSFER, IMMEDIATELY SHUT WS-AOV-14 AND WS-34 AS SHOWN ON FIGURE 2. EMERGENCY FLUSH CONNECTIONS ARE FROVIDED. FLUSH THE HOSE FREE OF RESIN USING THE FLUSH CONNECTION DOWNSTREAM OF WS-A0V-14 IMMEDIATELY UPON CESSATION OF ANY RESIN TRANSFER.

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OI-20

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Page 17 Attachment "F", (Cont'd.) Initials 4.6.19 Unlock and open the storage tank (T112) outlet valve WS-34. Observe PI-1120 pressure rapidly decreasing .

and level in shipping liner increasing.

NOTE: THE TRANFER SHOULD REQUIRE APPROXIMATELY 8-12 MINUTES. THE OPERATOR SHOULD HEAR AIR VENTING IN THE SHIPPING LINER WHEN THE TRANSFER IS COMPLETE.

NOTE: MONITOR THE TRANSFER OF RESIN. IT MAY BE NECESSARY TO MAINTAIN OR INCREASE THE PRESSURE IN T112 TO KEEP A GOOD FLOW GOING OR A RESIN PLUG UP MAY RESULT.

HOWEVER, AIR ADDITION SHOULD BE KEPT TO A MINIMUM TO LIMIT THE AMOUNT TO BE VENTED.

NOTE: APPROXIMATELY 1-2 CUBIC FEET OF RESIN WILL REMAIN IN THE TANK FOLLOWING THE ABOVE STEP. THE REMAINING

, RESIN IN THE TANK AND TRANSFER LINE WILL BE RINSED OUT.

4.6.20 As water / resin slurry fills liner, dewater as necessary to maintain enough water and keep the resin from ctacking.

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NOTE: SHOULD LEVEL RISE TOO HIGH IN LINER WITH RESIN STILL TO BE TRANSFERRED, START DEWATER PUMP.

! SECURE TRANSFER PER CAUTION STEP 4.6.17 IF NECESSARY UNTIL EXCESS WATER LEVEL CAN BE REMOVED.

i 4.6.21 When T112 indicates empty as evidenced by air venting l from the resin transfer hose, shut WS-34 immediately to j trap any remaining air pressure in the tank.

4.6.22 Open WS-35 for approximately two minutes to flush the resin storage tank and then repressurize the tank to approximately 5 psig.

4.6.23 Open WS-34 and transfer the residual water resin mixture

!~ to the shipping liner. Ensure the transfer line has been blown clear with air pressure.

4.6.24 Allow pressure to decay to zero.

l l

O OI-20 Page 18 Attachment "F", (Cont'd.) Initials 4.6.25 Check the radiation levels on the resin dump line below T112. If there is indication of resin still in the line, shut WS-34 and repeat Steps 4.6.22 through 4.6.24 as many times as necessary to flush the dump line clear.

4.6.26 Shut WS-A0V-14. Remove resin dump line from truck liner.

4.6.27 Dewater the truck liner as necessary per Chem & HP requirements.

4.6.28 When dewater is completed, disconnect dewater camlock.

CAUTION: THIS WILL BE A HIGH RADIATION AREA.

4.6.29 Cap the liner for shipment.

4.6.30 Disconnect the service air jumper hose used for pressurizig the storage tank and open WS-37 allowing the tank to totally vent to atmosphere.

4.6.31 Return all solidification system control valves to the shut position (green board at panel).

4.6.32 Shut and lock WS-34 storage tank outlet valve.

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4.6.33 Using a plastic bag to collect any liquid or resin, disconnect the resin transfer line from the storage tank. Install the male camlock cap in the resin transfer i

line and the female camlock cap on the storage tank l outlet line and lock this cap.

l l 4.6.34 Check storage tank (T112) pressure at zero psig (PI-1120),

i then disconnect the hose rigs from the fill and vent connections. Bag the hose connections and store on the handrail. Install the female camlock caps on the fill and vent connections. Shut WS-37.

4.6.35 Secure the resin transfer line duct fans.

Comments:

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