Document 7NDqz2zJDD5Re91n9kJJrzLg

FE WORK PROCEDURE "BLR~A3*` POWER DEPARTMENT APPROVED SAFE WGRK PROCEDURES BOILER 1 LIGHT-OFF FROM COLD CONDITION BOILER | PROCEDURE NO. Afl BOILER CLOSE-UP AND PREPARATION PROCEDURE 1. INSURE ALL PERSONNEL ARE OUT OF BOILER; YELL INTO EACH OPENING AND EXAMINE INTERIOR WITH FLASHLIGHT BEFORE CLOSING UP. ADVISE CRAFTSMEN SUPERVISOR OF THIS PROCE DURE AND 1 HAT HE IS TO MAKE A HEAD COUNT OF HIS PEOPLE. POWER SUPERVISOR IS TO DO THE SAME FOR POWER DEPARTMENT PERSO!JN[U,, 2 ASn AN INSTRUMENT MAN TO MAKE SURE THAT ALL SNITCHES AND RELAYS RELATED TO THIS BOILER ARE ENABLED IN THE MODICON. STARTING AT TOP OF BOILER, INSPECT EACH ACCESS DOOR I'NCLVDING TOP AND BACK OF ECONOMIZER SECTION. ACCESS !TO SUF'ERHEATFP SECTION PENTHOUSE. ETC. , FOR SCAFFOLDS, LADDERS, IDOLS. INSURE EVERYTHING IS REMOVED BEFORE BO ILER ACCESS DOORS ARE CLOSED INSURE ALL ACCESS DOORS IS CLOSED ANT IIOiHLY BOLTED INSURE "rH-/ T All RED TAGS HAVE BEEN PROPERLY RELEASED, C L F - f-D A N i ` A L ! 10 V L D ! A - E 1 v C ON 1 1 D:t k A r DK B D I T-UR 3 ABOVE PROCEDUF<rS COMPLETED. 2. ALWAYS TRICKLE FEED BOILER WHEN BRINGING IT UP. OVERHEATING THE ECONOMIZER FROM LACK OP FLOW COULD CAUSE A RUPTURE 3. ALWAYS USE IGNITORS FOR LIGHTING BURNERS NEVER TRY TO IGNITE PROM HOI BRICK WORK OR ADJACENT BURNERS. 4 OBSERVE FIRES CLOSELY DURING PRE5SURE RAISING. D HAKE SURE ALL GAGS ARE F\E MOVED FROM SAFETV VALVES. WEAL NDMEX SUIT WHEN LIGHTING GAS BURNERS. TRIP BOILER ANV time WATER LEVEL DROPS OUT OF GAU\jE Gl.A^L., . SIGHT IN DO 1,3310? CONFTDFNT 1 At Pk i UK 1'U 'LiGrlTUFF,' FILL BOILER TO TWO GREEN PORTS OR -2 ON ALLOWS FOR NATURAL SWELLING OF WATER ON lessen blowing down to hold water level HEATING. FILL WITH MAKE-UP, NOT DEMIN, WATER HAS A LOWER 02. EY'E-HYE. THIS HEATING AND WILL upon continued BECAUSE MAKE-UP OPEN THE FOLLOWING VALVES: ______ A. EYE-HYE WATER COLUMN AND DRAIN BLOCK VALVES (AT DRUM). ______ B. DRUM VENTS, ______ C. SUPERHEATER OUTLET VENT. ______ D. EAST & WEST SUPERHEATER DRAINS ON DRAIN MANIFOLD _____ E. DRUM PRESSURE GAUGE. ______ F. CONTINUOUS BLOWDOWN VALVES ( AT THE DRUM ) ______ G. CHEMICAL FEED VALVES. ______ H. FLOW AND PRESSURE TRANSMITTERS. ______ I. ECONOMIZER INLET. _____ J DRAIN ON BOILER SIDE OF MOV FOR BOILER STEAM LEAD LINE. _____ K FLASH TANK BY-PASS _____ L DRUM LEVEL TRANSMITTERS. _____ M ALL BLOWDOWN VALVES ____ N f.UlD BLOWDOWN BLOCK VALVES CLOSE 7 HE A F r r, E r- FOLLOWING VALVES EYE-HYE AND GAUGE GLASS WATER COLUMNS AND DRAINS ECONOMIZER DRAIN (AT DRAIN MANIFOLD). FEEDWATER MOTOR OPERATED SHUTOFF VALVE 0'-' MANUAL FEEDWATER BY-PASS VALVE. FEEDWATER MOTOR OPERATED BY-PASS VALVE. AUTO BLOWDOWN V-' _VE AND SHUT-OFF. T' FULL HALVE ON S m CUTLET H-ADEP. <'CN7 INUOUF f -.On DOWN GRADUATED VALVE ,7L a.SH TAN-* V AND STM IUV TO DEAERATORS Pl.-'CS SUPERHEATER DAMPER IN ICON FOSI' THF'l.". GH 7 HP FPIMATi S:.'P EP HE AT EF' > (ALL FLUE Pl'-.'E Air PREHEATER BY-'-'ASE DAMPERS IN OPEN POSITION OF ON ALL BURNER AIR REGISTERS. CLOSE ALL. BURNER GAS COCKS, PO CONF 7 0FN7 7 A S TURN ALL BURNER GAS SWITCHES AND IGNITOR SWITCHES OFF INSURE THAT OUTLET DAMPERS ON FD FANS ARE OPEN AND LOCKED IN POSIT JON. 10 INSURE THAT FLEXIBLE CONNECTOR IS REMOVED FROM S. H. OUTLET HEADER FILL VAL.VE AND PLUG IS INSTALLED IN GRALOCK FITTING PP I OF TO LIGHTING' OFF BOILER. j START EL'TA AND CORTKOl. PUMPS AND SET FOP NORMAL PROJECTED LOJlEF load 11 INSURE 7 Mu 7 INSTRUMENT AlF IS TURNED ON TO FAN VANE OPt ' 7 OR 0 CHECK OIL. LEVEL IN BEAMINGS ON INDUCED DRAFT AND FORCED DRAFT pans AMD START AN I D , THEN AN F. D ONE AT A PURGE CYCLE AND TRIP CHECKS 1. ESTABLISH NECESSARY AIR FLOW FOR PURGING (APPROX. 607.). 2. "VALVES CLOSED" LIGHT ON. THE FOLLOWING VALVE SHOULD BE CLOSED: IGNITOR SSO GAS SSO 3. DISABLE DRUM LEVEL TRIP SWITCH " LOW DRUM TRIP " LIGHTS SHOULD FLASH. 4. ESTABLISH AND MAINTAIN APPROX. 40# GAS PRESSURE ON GAS LINE. 5. SET MIN. GAS FLOW CONTROL VALVE AT 207. ON MANUAL. 6. "OPEN CV" LIGHT FLASHING. 7 Oi! CN GAS CONTROL VALVE S "OFEN SSO1 LIGHT FLASHING 9 OPEN GAS SSO VAL WC 10 "GAS SSO OF ON" LIGHT ON. 11 BURNER' HEADER PRESSURE >25#) MUST BE ESTABLISHED WITHIN 20 SECOND? THEN GAD SSO VALVE CLOSES AUTOMATICALLY 12 CLOSE GAS CONTROL VALVE- 12 "FORGE ON" LIGHT ON, HEAE'ER PRESSURE PROVING, AIR p,jr::r: o !!?'.-r SR PRESSURE MUST REMAIN ABOVE 10 PSIG TOP 5 I'll ILL'TPS TCi CONTJNVE 4 AFTER A E NIiTUTF DElAY, Or-EN SSD" LIGHT FLASHING ] 4 1 1 r i ' L, - : . > '', S. v i. If. "CAS SSO OFf/i-.l" LIGHT ON 17 BURNER HEADER WILL PURGE 2 MINUTES 18 "END PURGE" LIGHT ON. 19. ADJUST AIR FL.OW TO APPROX. 257.. IF AIR FLOW IS ALLOWED TO DROP BELOW 257. PRIOR TO LIGHT-OFF, BOILER WILL TRIP. 20. RESET ALARMS AND TRIPS. 21. OPEN IGNITOR SSO HEADER VALVE. 22 "L 0, READY" LIGHT ON. SAP' l7 Y TRIP CHECKS (ROUTINE'* USE MODI CON TRIP CHECK LIST SAFET- TRIP CHECKS (NON-ROUTINE) ^ ^33104 CONFTDFNTT Al LOW DRUM TRIP : 1. SHUT OFF TRICKLE FEED TO DRUM AND OPEN BLOWDOWN VALUES. WHEN DRUM LEVEL DROPS TO -10", GAS SSO VALVE SHOULD CLOSE. cn.. REPURGE. BURNER LIGHT-OFF: (TYPICAL FOR #1 IGNITOR) 1. AIR FLOW SHOULD BE 257.; CLOSE AIR REGISTERS ON BURNERS TO BE LIT. CL. . "L. 0. READY" LIGHT ON. 3. TURN IGNITOR SWITCH #1 TO ON POSITION A. WHEN IGNITOR LIGHTS, OPEN REGISTER TO ABOUT 107.. IF IG NITOR FAILS TO LIGHT, TWO MINUTE PURGE IS REQUIRED. AT- TER TWO MINUTES, "L 0 READY" LIGHT IS ON AND IGNITOR IS READY TO BE TRIED AGAIN ON THE FIRST IGNITOR ONLY, THE EQIi.ER WILL TRIP AFTER UNSUCCESSFUL FLAME DETECTION ON THE SECOND TRY THIS WILL REQUIRE RE-PURGING OF THE BOILER, ARTER A, FlAME IS ESTABLISHED, IGNITORS MAY BE TRIED C!TER AND OVER WITH ONLY A TWO MINUTE DELAY BETWEEN TRIES t: IGNITOR LIGHT WILL REMAIN ON AS LONG AS IGNITOR FLAME IS PF C GEN i'OILE'- L. K-f'T-O'H" C-AS BURNER ' (TYPICAL FOP #1 BURNER ) - i L =:: ejpe wind:-ox is wo h:cw:vi 1 ` - -, ,!">' ol'C-v; burner gun w r- fsi to minimize blow back TO"-1 A AO BURNER SPiUT-OPT SALVE SWITCH TO OPEN AND HOLD UNiiL 'vA.lVE ORWN" LIG:-,T COMES Ok'. THEN RELEASE SWITCH OPEL' GAD CfWr, ON #1 BURNER, WHILE ADJUSTING AIR REGI~ tof: IF FLAME FROM BURNER IS NOT PROVEN WITHIN 4 SECONDS, BURNER SSO VALVE WILL CLOSE. 4, "flame on" light if flame is proven; ignitor will shut DOWN (5 SECOND DELAY). IF NO IGNITORS ARE LIT, THE IG NITOR HEADER VENT WILL BE OPEN; THEREFORE, IT IS BEST TO EITHER HAVE AN IGNITOR LIT OR CLOSE THE IGNITOR SSO VALVE. 5. PUSH DIFFUSER IN UNTIL IT GLOWS, THEN BACK IT OUT UNTIL THE GLOWING STOPS. CLOSE ALL REGISTERS EXCEPT ON BURNER LIT AND THOSE DI RECTLY ABOUT AFTER FIRST BURNER JS LIT ADJUST MINIMUM PRESSURE FOR 2-3#. (T'C- l_ ,1.w..h1Ti . rO'^- ~r . )331 OS conftdfnttai FOLLOW THE CURRENTLY APPROVED PRESSURE RAISING CURVE BY THROTTLING THE SUPERHEATER VENT AND/OR ADJUSTING MINIMUM BURNER PRESURE REGULATOR INSPECT FURNACE FREQUENTLY FOR PROPER COMBUSTION. TRICKLE FEED BOILER WITH 1-1/2" BY-PASS AND CONTINUE UNTIL BOILER IS ON THE LINE TO PREVENT WATER FLASHING IN THE ECONOMIZER. BLOW DOWN FRONT AND SIDE HEADERS EVERY 20 MINUTES FOR FIRST TWO HOURS OF FIRING AND EVERY 30 MINUTES THER EAFTER UNTIL BOILER IS ON THE LINE. (OPEN AS FAST AS POSSIBLE AND CLOSE AS FAST AS POSSIBLE) AS BOILER STARTS TO STEAM, SNUG UP ON HANDHOLE AND MAN HOLE COVERS IF GASKETS HAVE BEEN REMOVED. INSURE THAT CONTINUOUS SLOW-DOWN BLOCK VALVE AT FLASH TANK IS CLOSED AND BY-PASS IS OPEN. S'L... FREE SURE SET EDTA PUMP STROKE AT MANUAL PROJECTED BOILER LOAD ALL STA:-T PUMP hT 35 PS] CL CLOSE DRUM VENTS AND THROTTLE SUPERHEATER VENTS WHEN BOILER REACHES 500# AND AT 100# INTERVALS THEREAFTER CLOSE S.R-RRHEAT ER VENT FOR 1 5 SECONDS AND THEN OPEN WIDE rfA sor:-:?,c the superheater tubes to aid in removal of OBSERVE PROPER CEDURE C-l. #4, AND #5 BURNERS EVERY HALF HOUR TO IN SUPERHEATER TUBES BEING CAREFUL TO PROCEDURES AS DESCRIBED IN SAFE WORK PRO WHEN FLOW OF STEAM EMITTING FROM LEAD LINE APPEARS TO BE DR TING OUT, ADJUST VENT VALVE TO MINIMIZE FLOW ALLOWING LEAD LINE TO PRESSURE UP. PUT POWER ON MOTOR-OPERATED VALVE ON BOILER LEAD LINE AND FEEDWATER LINE. WHEN DRUM PRESSURE REACHES 1200 PSIG, HAVE LEAD LINE PRESSURED AND WARMED UP AND OPEN NON-RETURN. INSURE ALL TUBES APE Cl.BAR OF CONDENSATE TUBE METAL TEMPERAURES SHOULD NOT EVCETD 875-*00 DEGREES F. RAISE BOILER PRFSSURE B, INCREASING GAS OR CUTTING BACK ON SUPERHEATER VENT. HOLD BOILER LOAD AT 50 TO 60M/# HR FOP 35-30 MINUTES AS A PRECAUTION AGAINST CONDEN SATE REMAINING IN Su=ERHEATEP TUBES THAT DO NOT HAVE THERMOCOUPLES. 00 13 310 A CONFIDENT TAl BOILER ON THE LINE 1. CLOSE DRAIN AND VENT VALVES. CLOSE SUPERHEATER DRAINS. 2. GO TO MAIN FEEDWATER REGULATOR AS SOON AS PRACTICAL. 3. ADJUST SUPERHEATER DAMPER TO OBTAIN MAXIMUM OUTLET STEAM TEMpERAURE NOT TO EXCEED 950 DEGREES F. 4. CLOSE AIR PREHEATER BY-PASS DAMPERS WHEN CUTLET FLUE GAS TEMPERATURE PROM THE PREHEATER REACHES 212 DEGREES F. 5. AFTER ALL T. C. 'S INDICATE THAT THE SUPERHEATER ELEMENTS ARE CLEAR OF CONDENSATE - INCREASE BOILER LOAD TO 100M#/HR AND RUN AT THIS LOAD FOR AT LEAST TW0(2) HOURS BEFORE INCREASING LOAD. 6 INSPECT BOILER THOROUGHLY FOR LEAKS, SIGNS OF UNEVEN EX PANSION, PROPER COMBUST ION, ETC ~ A SOON /: PRACTICAL. PUT COMBUST ION CONTROL ON AUTO. ANT' E.NA, vT. Dr.-u:; eED.-'El TP I ' INI-' RE ~ RAT b,. C"..k Vf.Vr'E IN FEEDWATER MOTOR-OPERATED :;-r-EE L.'NE are op e A^I T that stand-bn gas regula- t op i r. r :n' tv rci e:t- . i : e i 1 . ,:Ll.. z T,-.. l. ! 0 i l.A,,-,h i ANi AUn CL. GTE Ev--FASS. .`..TEE K-MUT 'OT - I I. AT MTU , ,.Ll l . - N: R S ARE LIT, oh at leas i on;; ignit:..1 IE- '.j LONGER REG'j I RED DO 133107 CONFIDENTIAL