Document jmwvpqYnooVqa96QeZqQe4JMO

JBOILER ONE SHUTDOWN c SAFE WORK PROCEDURE j 1 POWER DEPARTMENT APPROVED SAFE WORK PROCEDURE BOILER #1 SHUTDOWN PROCEDURE CHECK LOAD SHF DDES TO INSURE THAT THERE ISN'T ANY TRIPS SET UP 0:1 BOILER 1 IF `I HERE IS A TRIPCS) SET UP ON THE BOILER, DISABLE "1 ! ILK! UN THE L CALS. REDDER PUT BOILER MASTER ON MANUAL AND START KILLING BURNERS KEEPING THE BURNER -,AS PRESSURE AT AFPROX 4'S PRESSURE CUT GAS PRESSURE i J *. IK TO 5 EACH TINE A BURNER IS KILLED. rC'NTINUE TO KILL BURNERS LOWERING LOAD DOWN TO AFPROX 70-75 M. PuT COMBUSTION CONTROLS ON MANUAL, EXCEPT ID FANS AND ADJUST FAN u ,taut io err, or rox Main tain in;, cl above 7%. J>! OCE 1C' STEAK TO HJCH PRESSURE HEATER r E!J Aur-LC NEATER '.`ENT APPROX. 1 TUF N 0 EN SUPER HEN' TL`F APPROX i Tjr-.N (.RACK TRICKLE FEEL ElOCK JALVE AND CHECK THE OPERATION OF THE MOTOR OPERATED FEEDWATER BYPASS AND AUTOMATIC BLOWDOWN VALVE. CHECK LOAD 5HEDDER AND MAKE SURE NO TRIPS ARE SET UP AND THEN TRIP BOILER. 10 SHUT OFF CHEMICAL FEED PUMPS. 11 CLOSE FEEDWATER SHUTOFF VALVE AND WATCH DRUM LEVEL. tE. CLOSE LEAD LINE MOTOR OPERATED VALVE ONCE PRESSURE GETS TO 1000#. .13. CLOSE NON-RETURN. / AD JUS BLOWDOWN AND TRICKLE FEED BLOCK VALVES TO MAINTAIN DRUM LEVEL IN WHEN DRUM PRESSURE REACHES 100#`5, OPEN DRUM VENTS/ MAINTAIN TRICfLE FEED UNTIL SUPERHEATER TUBE TEMPERATURE REACHES 300 DEGREES, THEN Yu., CAN STOP TRICKLE FEED. 16 cool boiler down according to boiler shutdown curve. 17. WAIT UNIIL BOILER STOPS STEAMING BEFORE YOU DRAIN IT. do 133108 CONFTDFNTTA BOILER 2 STARTUP FROM COLD CONDITION POWER DEPARTMENT APPROVED SAFE WORK PROCEDURES BOILER 2 LIGHT-OFF OF IGNITOR OR 3RN3. FROM COLD CONDITION BOILER CLOSE-UP AND PREPARATION PROCEDURE 1. INSURE ALL PERSONNEL APE OUT OF BOILER, YELL INTO EACH OPENING AND EXAMINE INTERIOR WITH FLASHLIGHT EEFORE CLOSING UP. ADVISE CRAFTSMEN SUPERVISOR OF THIS PROCEDURE AND THAT HE JS TO MAKE A HEAD COUNT OF HIS PEOPLE. POWER S .'"ER'.'I SCR IS TO DO THE SAKE FOP PQwER DEPARTMENT PERSONNEL . f-- I 1 1 TRIAS NT MAN TO MAKE SURE THAT ALL SNITCHES AND RELAYS ECHf-iT ED TO THIS BOILER ARE ENABLED IN THE MOD ICON. 3 FTP FT IN AT 1 DP o^ nij-f. in T ECT EACH ACCESS DOOR IN- HULLING ' - ' ' :a_l e" e'C'nt: HOF E SECTION, ACCESS TO H - F. *" -- E ' t-'v r- r i I ID"-;. P C Nv c. P : ETC , FOR SCAFFOLDS, i c lh.l INSURE EVERYT -iINC- IS REMOVED BEFORE BOILER f , . L - L 1 l L .,r,s are Closed jnso <E ALL ACCESS DOORS ARE ;I: 7 J *LH TLV BOH ED J r : 7 f: r 7 ; h !, 1' ' ^ -j' H A V LL L-EEM PROPERLY RELEASED, ' s' - " l.L' *- ' F : ' , w! * _|pt : WE IDE' 01 !S BOWLER S'-U-V-UF AEOVE r-C IEDUF 03 COMPLETED 2 F-H.i-.tE REED L OILER WHEN BRINGING IT UP. OVERHR ATIUG THE ECONOMIZER FROM LACK OF FLOW COULD CAUSE A RUPTURL 3. ALWAYS USE IGNITORS FDR LIGHTING BURNERS. NEVER TRY TO IGNITE FROM HOT BRICK WORK OR ADJACENT BURNERS. 4 OBSERVE FIRES CLOSELY DURING PRESSURE RAISING. 5 MAKE SURE ALL GAGS ARE REMOVED FROM SAFETY VALVES. 6 WEAR NOMEX SUIT WHEN LIGHTING GAS OR OIL BURNERS. 7. TRIP BOILER ANY TIME WATER LEVEL DROPS OUT OF SIGHT IN GAUGE CLASS ;0 LIGHT OP i- 00 I 331 OP C'.ONFT OFNT 1 cv 3 FILl- BOILER TO TWO GREEN FORTS, OR -2 ON EYE-HYE. THIS ALLOWS FOR NATURAL SWELLING OF WATER ON HEATING AND WILL LESSEN BLOWING DOWN TO HOLD WATER LEVEL UPON CONTINUED HEATING (NOTE: FILL WITH MAKE-UP, NOT DEMIN BECAUSE MAKE-UP wa i'c.k HAd "ATTURER CH5 CTJuNlT OPEN THE FOLLOWING VALVES _____ A. EYE-HYE WATER COLUMN AND DRAIN* BLOCK VALVES. (AT THE DRUM ) _____ B. DRUM VENTS. _____ C. SUPERHEATER OUTLET VENT (1.5 TURNS OPEN. ) _____ D. EAST AND WEST S. H. DRAIN VALVES ON DRAIN MANIFOLD _____ E. DRUM PRESSURE GAUGE. _____ F. CONTINUOUS BLOWDOWN VALVE (AT DRUM) _____ G. CHEMICAL FEED VALVE5. _____ H. FLOW AND PRESSURE TRANSMITTERS. _____ I. ECONOMIZER INLET. _____ J. DRAIN ON BOILER SIDE OF MOV FOR BOILER STEAM LEAD LINE. _____ K. FLASH TANK 3Y-PASS. _____ L. DRUM LEVEL TRANSMITTERS. _____ M. ALL BOTTOM BLOWDOWN VALVES. _____ N. AUTO BLOWDOWN B. V. 'S 3. CLOSE THE FOLLOWING VALVES: _____ A EYE-HYE AND GAUGE GLASS DRAINS S- WATER COLUMNS ( AT DRAIN MANIFOLD ) ECONOMIZER DRAIN ( AT DRAIN MANIFOLD ) C FEEDWATER MOTOR OPERATED SHUTOFF VALVE. P 2" MANUAL FEEDWATER BY-PASS VALVE E. FEEDWATER MOTOR OPERATED BY-PASS VALVE. F AUTO BLOWDOWN VALVE AND SHUT OFF. 4" FILL VALVE ON S. H. OUTLET HEADER. H CONTINUOUS B/D GRADUATED VALVE I FLASH TANK B. V. AND STEAM E. V TO DEAERATORS 4 PLACE SUPERHEATER DAMPER IN 100% POSITION (ALL FLUE GAS THROUGH THE PRIMARY SUPERHEATER) ? PLACE AIR PREHEATER ET-RA5S DAMPERS IN OPEN POSITION A INSURE THAT ALL FUPPER AIR REGISTERS ARE CEN. INSURE THAT OUTLET DAMP EFT. DM F D FANS ARE OPEN AND EDI I'. ED IN POSITION E INSURE; THAT FLEXIBLE CONNECTOR IS' REMOVED FROM S. H. OUTLET HEADER FILL VALVE AND PLUG IS INSTALLED IN GRALCCK FITTING PRIOR TCI LIGHTING OFF BOILER. 9. INSURE THAT INSTRUMENT AIR IS TURNED ON TO FAN VANE OPERATORS. 10. STROKE FAN VANES BEFORE STARTING. 11. CHECK OIL LEVEL IN BEARINGS ON INDUCED DRAFT AND FORCED DRAFT FANS AND START AN I D., THEN AN F. D, ONE AT A TIME PURGE CYCLE AND TRIP CHECKS: 1 ESTABLISH NECESSARY AIR FLOW FOR PURGING (APPROX. 607.). READ ON AIR FLOW INDICATOR ON THE "E" FD FAN CONTROLLER 2 PUT IGNITER AND BURNER SWITCHES AT BURNER FRONT IN OFF POSITION. DO 133110 3 THE FOLLOWING VALVES SHOULD EL CLOSED: CONFTDFNTTAl ~~ G7Yb'~L<URMLK bST IGNITOR SSO GAS SSO IGNITOR SO 4. DI5ABLE DRUM LEVEL TRIP SWITCH " LOW DRUM TRIP " LIGHTS SHOULD PLASH. 5. ESTABLISH AND MAINTAIN AFPROX. 40# GAS PRESSURE ON GAS LINE. 6. "OPEN CV" LIGHT FLASHING. 7. OPEN GAS CONTROL VALVE AND MIN FLOW CONTROL VALVE- B. "OPEN SSO" LIGHT FLASHING. 9. OPEN GAS SSO VALVE. 10. "GAS SSO OPEN" LIGHT ON U BURNER HEADER PRESSURE (25#) MUST BE ESTABLISHED WITHIN 30 SECONDS THEN GAS SSO VAuVE CLOSES AUTOMATICALLY T1 1. o D F_ 0-`E Cnri7Rrn_ VALVE. I3 "PURGE ON" LIGHT ON. HEADER PRESSURE PROVING; AIR PURGE ON. GAS HEADER PRESSURE MUST REMAIN ABOVE 10 PSIG FOR 5 KJ MUTTS TO CONTINUE AR'lR a 5 mr-IUTL DE.LA1 . 'OPEN SSO" light FLASHING ,. \'L L N ^ : Hi-J VrP V'u j r o" r,, r r'" L TG-N f. N LOU Tu APF~0>. 2 I IF AIR FLOW I? ALLOWED L""'. T" LK-HT- OFF: BOILER W3lL TRIP. :H Ui AIFL.SW INDICATOR ON THE "B" FD FAN ~0 AT jHST Mir, FLOW CONTROL VALVE FOR LIGHT OFF. (107. OPEN) 21 RESET ALARMS AND TRIPS 22 OPEN IGNITOR SSO HEADER VALVE DO "L. 0 READY" LIGHT ON' AFE ""I TP IT CHECKS (ROUTINE- UEE MODI CON TRIP LIST. . 'li-.L'D : uiPN-ROUTINE ' L'i. . - i, t . ' F-LF " Ti-U'l-'ir REF I- "FUM AND OPE 10 BLOWDOWN VALVES r -EL DRY'-'1 ! EVEL DROPS VI -11 " GAS SCO VALVE SHOULD DO 13011) CONFIDENT 1 Al BURNER LIGHT-OFF 1 L.0 READY LIGHT ON 2. TURK IGNITER AND BURNER SNITCHES AT BURNER FRONT TO NEUTRAL POSITION 3. AIR FLOW SHDUL.D BE 25'/., AIR REGISTERS ON BURNERS NO. 4 AND NO 7 WILL BE OPEN. WHEN A BURNER IS LIT ON THE TOP ROW, THE NO 7 REGISTER WILL NO LONGER EE REQUIRED TO EE OPEN. (THE SAME IS TRUE FOR #4 REGISTER ON THE BOTTOM ROW. ) 4. ON BOILER BOARD, PUSH IGNITER BUTTON AND THE BUTTON FOR THE BURNER YOU WISH TO LIGHT A FLASHING BURNER LIGHT INDICATES IGNITER FLAME. IF IGNITOR FAILS TO LIGHT, TWO MINUTE PURGE IS REQUIRED AFTER TWO MINUTES, "L. O. READY" LIGHT IS ON AND IGNITOR IS READY TO BE TRIED AGAIN. ON THE FIRST IGNITOR ONLY, THE BOILER WILL TRIP AFTER UNSUCCESSFUL FLAME DETECTION ON THE SECOND TRY. THIS WILL REQUIRE RE-PURGING OF THE BOILER AFTER A FLAME IS ESTABLISHED, IGNITORS MAY BE TRIED OYER AND OVER WITH ONLY A TWO MINUTE DELAY BETWEEN TF ]_ . I. LIlL PEL-MU c: LONG AS IGNITOR FLAME IS R= C'-TN 1 iLL: -Y F,, IGNITERS wjLL EXTINGUISH THEMSELVES f.'TUHl jO'.llV AFTER 0 MINUTES ONCE METHANE BURNER IS LIT, THE I CM"; OR TRIPS WITHIN 5 SECS. EXTENDED FIRING OF ANY ICNITTP .U! D CY UCT SERIOUS DAMAGE TO THE BUPNEP THE 11 T " J AT I 7 'f-j or IGNITER LIGHTING WILL AUTOMATICALLY OPEN THE t-. ~ . I 1 l: AYR REGISTER AIR REGISTER MUST PROVE OPEN FOR EU'-NFL . LI YU;- REGISU-R IS OPEN WHEN HANDLES ARE CLOSEST ~ C IT Up IRON'!. I YE TO ID"' PH'N i: PR OVER FUFH THE METHANE BUTTON .. ' l . W!ir< TO LIGHT (WHICH r WIL CLOSE M J T h 4 SEC DS, J" FL t- MO IS ! RO'-.'EN- THE BURNER LIGHT WILL STOP FLASHING AND REMAIN OH THE IGNITER WILL EXTINGUISH ITSELF. AS ADDITIONAL BURNERS ARE LIT, ADJUST MIN FLOW CONTROLLER VALVE TO MAINTAIN 2-3 P3IG ON BURNER HEADER. AFTER LICUT P~F DO 13311? CONFIDENTIAL 1 FOLLOW THE CURRENTLY APPROVED PRESSURE RAISING CURVE BY THROTTL INI- THE SUPERHEATER VENT AND/OR ADJUSTING MINIMUM r T'LCR PR loupe regulator I'- PLY 7 `-'UYH.'.CF FI ELUENT1... * FOR PROPER COMBUSTION TRICKLE FEED BOILER WITH 1-1 ''O" EY-FAES AND CONTINUE R"OL BOILER IS ON THE LINE TO PREVENT WATER FLASHING IN THE FICuNOH i / I I" LYON DO;..' F'Rf'NT AND SILL HEADERS EVERY 20 MINUTES FOR FIRST 1, 11 HO1 IRS OF FIRING AND EVERY 30 MINUTES THEREi}' T ER UNTIL BOILER IS, ON THE LINE (OPEN AS FAST AS i ELr. fiNiY bLXi6ti~"AS FA*3 I AS' FUbbTlaLt I 5. AS EOILER STARTS TO STEAM, SNUG UF ON HANDHOLE AND MAN HOLE COVERS IF GASKETS HAVE EEEN REMOVED. RAISING STEAM PRESSURE; 1. SET EDTA PUMP STROKE AT MANUAL PROJECTED 30ILER LOAD AND START PUMP. 2 AT 25 F SI G, CLOSE DRUM VENTS AND THROTTLE SUPERHEATER VENTS 3. WHEN BOILER REACHES 500# AND AT 100# INTERVALS THEREAFTER CLOSE SUPERHEATER VENT FOR 15 SECONDS AND THEN OPEN WIDE FOR SURGING THE SUPERHEATER TUBES TO AID IN REMOVAL OF CONDENSATE. A BEGIN WARMING BOILER STEAM LEAD LIME FROM HEADER TO NON-RETURN/ THROUGH LEAD LINE WARM UP BY-PASS AND LEAD LINE VENT. PUT ALL BOILER METERING, ON CRT, IN SERVICE. ROTV-.TE GO. A AND ML BURNERS EVERY HALF HOUR TO CLEAR CONDENSATE IN SUPERHEATER TUBES BEING CAREFUL TO OCSDL OFF A."' DESCRIDEF IN SAFE WORK PRO- t.'HCN M'U OK STEAM EMITTING FROM LEAD LINE APPEARS TO BE Dr- iifv:- C V aD..U-:T VENT VALVE TO MINIMIZE Fi_CW ALLOWING lea; ; r.-r 0 PR! SE','fNE Lv r:~ eg.1::- c-ei mot op-operated valve on boiler lead line e-ETZk-TEF L'f'Nr OPEN LEAD LINE r,OV and stroke feedwater n ai 1i-,ms time r'-A-' _ .r- - ; '..GO A-r- F'FL'ESVRE REACHES IDCC pIG.. HALE LEAD LINE ;; r-c-ptj r,- r.- rL:q f.- ircEUPE ALL ., L - A CM CGi.IENP-.AE TUBE ME- TA,L TEmPERAURES L'CLL: tV'G-GG'C DECKELS ' " ' : -0 r E11 RODS-- T. N INCREASINC GAG GR CU FT IF- Q BACK. ' * V.Tf '.t: U r m: LB DTI LLP LCA N AT EG TO tr n /HR. r 1 ' r: ' ; 1 ij ! l' S a- A F HO CAC'T i HD A" .'INST C'CNCEMB A TE V l I N'T NO 2 *! SUPERHE - T [ r- TUBES THAT I'D NOT HAVE T HL RnOCOUFLL;, BOILER ON THE LINE DO 133113 CONFIDENT! A; 1 CLOSE DRAIN AND VENT VALVES CLOSE SUPERHEATER DRAINS, GO TO MAIN FEEDWATER REGULATOR AS SOON AS PRACTICAL. AND ENABLE DRUM LEVEL TRIP ADJUST SUPERHEATER DAMPER TO OBTAIN MAXIMUM OUTLET STEAM TEMFERAURE NOT TO EXCEED 950 DEGREES F. Cl.OFF AIR PREHEATER BY-PASS DAMPERS WHEN CUTLET FLUE GAS TCM.-ERATl'RE FROM THE PREHEATER REACHES 15 DECREES R. r-E ... - h_i- T. C. 'S INDICATE THAT THE SUPERHEATER ELEMENTS At e: clear of condensate- increase boiler load to 100M#/HR am; RUN AT THIS LOAD FOr- AT LEA.ST TWOf; HOURS EEFORE INLFEhEING l.OAD ih:;"'ect boiler thoroughly for leaks, signs of uneven exi AH.-: ; ON, FROG EG COill-vJDT ION, ETC. 7. AS SOON AS PRACTICAL, PUT COMBUSTION CONTROL ON AUTO. 8 INSURE THAT BLOCK VALVES IN FEEDWATER MOTOR-OPERATED BY-PASS LINE ARE. OPEN AND ALSO THAT STAND-BY GA5 REGULA TOR IS READY FOR SERVICE. =?. OPEN C. B. D. GRADUATED VALVE 2-3 TURNS. 10. OPEN BLOCK VALVE TO FLASH TANK AND CLOSE BY-PASS. | 11. REV 0W/04/SB 04/19/90 CLOSE IGNITOR SSO VALVE AS SOON AS ALL BURNERS ARE LIT, OR AT LEAST ONE IGNITOR IS NO LONGER REQUIRED. I ! l DO 133114 CONFIDENT T At