ML20129D401
| ML20129D401 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 04/17/1985 |
| From: | Quennoz S TOLEDO EDISON CO. |
| To: | |
| References | |
| SP-1106.27, NUDOCS 8507300014 | |
| Download: ML20129D401 (13) | |
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l SP 1106.27 Davis-Besse Nuclear Power Station j Unic No. 1 System Procedure SP 1106.27 Startup Feed Puc:p Operatin6 Procedure Record of Approval and Changes
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Prepared by, L. Bladel, J. Dennis , B. O'Connor. B. Zee.enski S h0/75 Date Submitted by 7e b "
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3, 1 SP 1106.27.5
- 1. PURPOSE To provide a procedure for the operation of the startup feedwater pump. The startup feed pump will be used to fill the steam generators
. and maintain steam generator level during plant startups and shutdowns.
Normally the startup feed pump will take a suction from the deaerator storage tanks and discharge to the feedwater system upstream of the No. 4 feedwater heaters. Suction can also be taken from the condensate storage tanks. This procedure will be used in conjunction with Plant Startup Procedure, PP 1102.02 and Plant Shutdown and Cooldown. PP 1102.10 to establish specific flow paths.
The specifications on the startup feed pump are:
Type - constant speed, horizontal, seven stage centrifugal, motor driven Flow - design: 360 gym minimum: 60 gpa
- Head - operating
- 2550-1800 ft. (1100 PSID-780 PSID Across pump) ,
design: 2350 ft shutoff: 2600 ft Temperature - operating: 40-220*F
(, design: 220*F Motor:
! Power Supply - non-essential 4.16 KV Bus 'D2 BKR AD 210 Full load amps - 44 amps, 350 H.P., 3600 RPM
- 2. LIMITATIONS AND PRECAUTIONS 2.1 NEVER THROT1'LE A SUCTION VALVE ON A PUMPt 5l 2.2 SUFP suction valve (FW 32 or FW 91) will always be opened slowly when filling pump.
, 2.3 NEVER START OR OPERATE A PUMP UNLESS YOU ARE SURE THAT THE PUMP MINIMUM FLOW REQUIREMENTS ARE ET! THIS CAN BE ACCOMPLISHED BY ENSURING TE PUMP MINIMUM RECIRC OR DISCHARGE FLOW PATH IS OPEN AND CAN PASS THE MINIMUM FLOW REQUIREMENTS! SUFP MINIMUM FLOW IS 60 GPMt 2.4 SUFP bearing lube oil temperatures should not exceed 180*F. If this condition occurs, the SUFP should be shutdown immediately.
If a lube oil temperature is approaching 180*F, reduce pump tiow to maintain <180*F.
2.5 SUFP motor maximum stator temperature is 266*F.
- - - - -~. e -
2 SP 1106.27.5 ,
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2.6 The following starting duty must not be exceeded: ,
2.6.1 2 starts in succession with motor initially at ambient temperature.
2.6.2 1 start in Juccession with motor initially at rated operating temperature.
2.6.3 Subsequent starts after 2.6.1:
- 1. Limited to 1/2 hour apart.
2.6.4 Subsequent starts after 2.6.2:
- 1. Limited to I hour apart.
2.7 Maximum Delta P.across SUFP suction strainer is 5 psid.
2.3 During a plant shutdown to prevent actuation of the Steam and Feed Rupture Control System, the SUFP sust be started before the last Main Feed Pump Turbine is shutdown. .
5 2.9 The SUFP piping located in the auxiliary feed pus, rooms must remain isolated except as required by EP 1202.01, RPS, SFAS, STRCS or SG Tube Rupture; or during plant startups and shutdowns.
An operator must remain in the SUFP/AFP room while the pump is operating in Modes 1, 2, or 3. In the event of a leak in the
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feedwater or cooling water piping, the operator will stop the SUFP or notify the control room to stop the SUFP and the operstor will isolate the feedwater and cooling water piping for the SUFP.
- 3. REFERENCES 3.1 Bechtel Drawings (P&ID) 3.1.1 M-006B, Feedwater System 3.1.2 M-007, Steam Generator Secondary 3.2 Technical Manuals J 3.2.1 Bingham Startup Feed Pump Manual for pump number P-15 3.3 USAR Section 10.4.7.2, and 3.6.2.7.2.12 5
3.4 operating License condition 2.C.(3)(t)
- 4. PREREQUISITES 5
4.1 The Feedwater Systies is filled, vanted, and in normal lineup as per SP 1106.07, W System Procedure.
51 -
,7s 3 SP 1106.27.5 4.2 Turbine Plant Cooling Water System is in service as per SP 1104.39 (Turbine Plant Cooling Water System Procedure).
5l 4.3 Valve Verification List A of this procedure has been completed.
- 5. PROCEDURE 5
5.1.1 Send an operator to the startup feed pump to perform the SUFP checklist, Step 1-10.
5.1.2 Monitor, after starting the SUFP, the following computer points until pump conditions have stabilized:
Maximum
- a. SUFP DISCH PRESS P942 1200
- b. SUFP IN STRNR DP P940. 5 PSID
- e. SUFP NTR STATOR TEMP T916 266*F
- f. PUMP M/E BRG 0/T T913 180*F +
- g. PUMP 0/B BRG 0/T T917 180*F ,
l h. PUMP THR BRG M/T T918 180*F {
CAUTION: When the SUFP is started and supplying the
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feedvater system, flow will be controlled at s e' the S/U flow control valves SP 7A'and SP 7B.
If too much flow exists on the SUFP, it will be necessary to throttle back these valves!
5.1.3 Start the SUFP Dy turning control room switch EIS 579 to the " Start" position and release. The switch will spring return to normal.
, NOTE: SUFP discharge pressure should be greater l than 900 psig at all times and running l current should be less than 44 amps.
l 5.1.4 When the pump reaches rated speed, have the local operator verify Steps 10 and 11 of the Startup Feed Pump Checklist.
l Section 5.1 completed by Date 5.2 SUFP Shutdown Procedure 5.2.1 Stop the SUFP, turn HIS 579 to the "Stop" position and release. The switch will spring return to normal.
5l 5.2.2 Remove and DNO tag the close power fuses for AD 210 to prevent damage to the SUFP due to considerations in the following steps.
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4 SP 1106.27.5 m
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5.2.3 Close and DNG tag CW 196 and CW 197. ,j 5.2.4 Close and DNO tag Both W 91 suction from the CST's AND W 32 suction from the DST's.
5.2.5 Close and DNO tag W 106.
5l Section 5.2 completed by Date Y
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l 5 SP 1106.27.5 l m l
.- STARTUP FEED PUMP CHECKLIST 5 CAUTION: An operator MUST remain in the SUFP room once the pump is unisolated and the plant is in Modes 1, 2, or 3. IF the SUFP feedwater or cooling water piping develops a leak, THEN shutdown .
the startup feed pump locally (or notify the control room to stop the pump) AND CLOSE W 106, FW 32, W 91, CW 196 and CW 197. Isolate the leaking pipe first.
- 1. Lineup Turbine Plant Cooling Water to the SUFP Seal Water Cooler and the SUFP L.O. Cooler as fellows: '
5l Valve No. Position CW 106 Main inlet Iso to MFPT Lube Oil Coolers and SUFP Open Seal Water and L.O. Coolers CW 107 Main inlet Iso to MFPT Lube Oil Coolers and SUFP Open Located west Seal Water and L.O. Coolers of MFPT 1-1 5 CW 196 SUFP seal water /L.O. coolers inlet (Remove DNO Open CW 197 SUFP seal water /L.O. coolers outlet (Remove DNO) Open -
CW 132 SUFP seal water cooler inlet Open -
CW 134 SUFP seal water cooler outlet Open CW 133 SUFP L.O. cooler inlet '
Open CW 135 SUFP L.O. cooler outlet Open 5 2. Remove DNO tag and open W 91 from condensate storage tanks OR C;;,'/ W 32 from deaerator storage tank as directed by the Shift Supervisor.-
- 3. Remove DNO tag and open SUFP discharge valve to FW system, FW 106. The FW System will be pressurized to the startup control valves when the pump is started.
- 4. To warm and to flush.the normally stagnent pump suction line, open suction strainer drain FW83 and drain water to a floor drain.
NOTE: This floor drain goes to the Miscellaneous Waste Drain Tank.
- 5. Ensure SUFP seal water supoly valve, located beneath pump casing, is open.
- 6. Ensure oil level in pump oil reservoir is at the "high" mark on the sight glass.
- 7. Check to ensure both motor bearing oil levels are " normal" as indicated on the sight glasses.
5 8. Ensure SUFP minimum recirc valve FW93 is open.
- 9. Vent the SUFP casing by opening FW 77.
wi Sheet 1 of 2 l ..
6 SP 1106.27.5 m
5l 10. Remove the DNO tag and install the close power fuses fo: breaker }.
AD 210.
- 11. After the SUFP is started by the Control Room Operator, ensure
'the SUFP discharge pressure is greater than 900 psig and flow is less than 300 gpa (104" H 0).
2 Use PDI 2657 and Attachment 2 to determine flow.
NOTE: 900 psig and 300 gpa corresponds to a total flow of 22,000f/hr on FI SP3A and FI 3P38.
- 12. Monitor the following using the local indicators:
12.1 Thrust bearing plate metal temperature. TE499G (max 180*F) 12.2 SUFP seal water cooler out temperature as read on TI 2664. .
12.3 SUFP L.O. cooler out temperature as read on TI 673.
12.4 SUFP discharge pressure as read on PI 943.
12.5 SUFP flow PDI 2657 (design flow 360 GPM). .
- 13. Observe the SUFP for any unusual vibration.
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9 SP 1106.27.5
- c. Sheet No. I~
of _2_ VALVE VERIFICATION LIST A Startup Feed Pump Startup and Normal Operations Verifi;.ation List Only - Consult Shift Supervisor Prior to Repositioning Valve P&ID No. VALVE VALVE VERIFY VALVE DESCRIPTION Coord. NUMBER POSITION BY 5l M-006B Deaer Storage Tk 1-2 Out Iso Valve C-10 FW 2 Open M-006B Deser Storage Tk 1-1 Out Iso Valve C-3 FW 1 Open M-006B Deaer Storage Tk Outlet Cross Connect G-10 FW 423 Open M-006B Demer Storage Tk Outlet Cross Connect Iso D-3 FW 84 Open M-006B Locked Deaer Storage Tk to AFP & SUFP H-7 FW 85 Closed
- 5 M-006B Closed &
SUFP Suction from Deaer Stg Tks J-5 FW 32 DNO Tagged ,
M-006B Closed &l SUFP Suction J-5 FW 91 DNO Tagged 1 M-006A CD 167 AFP Suction from Condensate Stg Tk C-12 CD 168 Open
<- M-006B Locked AFP Suction from Condensate Stg Tk
( '. Startup Feed Pump Seal Water Cooler H-7 M-009 CD 170 Open*
1-1 Inlet Isolation H-2 CW 132 Open Startup Feed Pump Seal Water Cooler M-009 1-1 Outlet Isolation J-2 CW 134 Open Startup Feed Pump Lube Oil Cooler M-009 Inlet Isolation J-2 CW 133 Open Startup Feed Pump Lube Cooler 1-1 M-009 Outlet Isolation K-2 CW 135 Open SUFP Seal Water Cooler /L.O. Cooler M-009 Closed &
Inlet Header Isolation H-2 CW 196 DNO Tagged SUFP Seal Water Cooler /L.O. Cooler M-009 Closed &l Outlet Header Isolation J-3 CW 197 DNO Tagged Inlet Isol to MFPT Lo Coolers and SUFP M-009 Seal Water and Lo Coolers H-2 CW 106 Open Outlet Isol to MFPT Lo Coolers and SUFP M-009 Seal Water and Lo Coolers H-2 CW 107 Open M-006B SUFP Min Recire Isolation to Deaer 1-1 B-4 FW 96 Open M-006B SUFP Min Recire Isolation to Deaer 1-2 B-4 FW 97 Open M-006B MFP 1-1 Min Recire Outlet Isolation C-4 FW 34 Open
- Controlled per AD 1839.02 5l
10 SP 1106.27.5 of 2 VALVE VERIFICATION LIST A Startup Feed Pump Startup and Normal Operations Verification List Only - Consult Shift Supervisor Prior to Repositioning Valve P&ID No. VALVE VALVE VERIFY VI.LVE DESCRIPTION Coord. NUMBER POSITION BY M-006B MFP 1-2 Min Recire Outlet Isolation C-9 FW 35 Open MTP Min Flow Line X-Conn Between M-006 Deserators 1-1 and 1-2 B-4 FW 98 Closed 5 M-006B Closed &
SUFP Disch to FW System F-7 FW 106 DNO Tagged M-006B SUFP 1-1 Suction Strainer Drain K-5 FW 83 Closed M-006B SUFP 1-1 Suction Diff Press Switch Source J-5 FW 500A Open M-006B SUFP 1-1 Suction Diff Press Switch Source J-5 FW 500B Open M-006B In SUFP 1-1 Suction Diff Press Switch J-5 PDSH 500 Se rvice M-006B SUFP 1-1 Suction Line Drain Valve J-4 FW 92 Closed M-006B SUFP 1-1 Vent Valve J-4 FW 77 Closed M-006B SUFP 1-1 Drain Valve -
K-4 FW 78 Closed M-006B SUFP 1-1 Discharge Press Indication Source K-3 FW 495 Open M-006B PI 495 b In SUFP 1-1 Discharge Press Transmitter K-3 PT 495 Se rvice M-006B In SUFP 1-1 Discharge Press Indication K-3 PI 943 Se rvice M-006B SUFP 1-1 Minimum Recirculation Valve J-2 FW 93 Open M-006B SUFP 1-1 Discharge Valve J-2 FW 100 Open M-006B SUFP 1-1 Discharge Line Drain Valve J-2 FW 101 Closed M-006B In SUFP 1-1 Discharge Diff Press Indication J-2 PDI 2657 Se rvice M-006 SUFP Disch Diff Press Indicator Source J-2 FW 2657A Open M-006 SUFP Disch Diff Press Indicator Source J-2 4 FW 2657B Open Reviewed by Date 5 Shift Supervisor or Assistant Shift Supervisor M
e e