Emergency Quench System

8/11/2019 Emergency Quench System

http://slidepdf.com/reader/full/emergency-quench-system 1/20

Southern Company Generation Gorgas Units 8, 9 & 10 Scrubbers

Technical Training Emergency Quench System

!"ance! #echanical $"er"ie% Stu!ent Gui!e

PLANT GORGAS UNITS 8, 9 & 10

FLUE GAS DESULFURIZATION SYSTEM

EMERGENCY QUENCH SYSTEM

ADVANCED MECHANICAL OVERVIEW

NOTE The 'ra%ings use! in this Stu!ent Gui!e are (or Training )urposes $nly* +hen

troubleshooting these systems in the (iel!, al%ays use the latest !ra%ing re"ision(rom the 'ocument Control System*

Confidential Information Page 1 of 19






Table of Contents

'-CE' #EC.-/C $E/E+ 21 S3ET4 C$-S/'ET/$-S 2

5 '+/-G E3EE-CES 6

2 )$CESS 'ESC/)T/$- 7

2*1 /-T$'UCT/$- 7

2*5 S4STE# C$#)$-E-TS 8

2*5*1 E#EGE-C4 QUE-C. $$STE )U#) -' #$T$ 8

2*5*5 E#EGE-C4 QUE-C. #EU) +TE C$-T$ E 10

2*5*2 E#EGE-C4 QUE-C. '/- C$-T$ E 11

2*5*6 E#EGE-C4 QUE-C. 3/E )$TECT/$- C$-T$ E 15

2*5*: E#EGE-C4 QUE-C. C$-T$ E )Q;<;:15: 12

2*5*= E#EGE-C4 QUE-C. C$-T$ E )Q;<;:15: 16

2*2 SU##/>E' C$-T$S 'ESC/)T/$- 1:

2*6 'ET/E' C$-T$S 'ESC/)T/$- 1=

6 )$CESS 3$+ 'ESC/)T/$- 17







ADVANCED MECHANICAL OVERVIEW

1 Safety Considerations

1. ll $perating Companies Sa(ety an! .ealth #anuals shall be (ollo%e! at all times*

2. The Southern Company Generation Clearance )roce!ure shall be (ollo%e! at alltimes*

3. thorough ?ob Sa(ety rie(ing @?SA shall be complete! be(ore beginning %orB*

4. Employees shoul! al%ays use the proper )ersonal )rotection Euipment @))EA (or thetasB they are per(orming*

5. )ersonnel must obser"e stan!ar! sa(ety precautions %hen %orBing aroun! or %ithhigh temperature piping systems*

6. )ersonnel must be a%are that components o( the Emergency Quench System aremaintaine! in an automatic mo!e o( operation* The euipment may start at any time%ithout %arning*

. )ersonnel shoul! remain clear o( all rotating machinery, %hether operating or instan!by, at all times !uring unit operation*

!. otating machinery must ne"er be place! in ser"ice %ithout the appropriate euipment

guar!s in place*

". -o attempt shoul! be ma!e to bypass or eliminate euipment sa(ety interlocBs* 'oingso coul! result in euipment !amage an! possible inDury to plant personnel*

1#. 3ollo% proper Con(ine! Space Entry )roce!ures %hen entering con(ine! spaces*

11. +hen employees are per(orming %orB on or associate! %ith epose! lines oreuipment energiFe! at :0 "olts or more, persons traine! in 3irst i! inclu!ingCar!iopulmonary esuscitation @C)A, shall be a"ailable %ithin 6 minutes per $S.1910*5=9 reuirements*







2 $ra%in& 'eferen(es

The Emergency Quench System is illustrate! on the (ollo%ing !ra%ings

Num!" S#!!$ R!% T$'!

P&ID(

';:606=: 1 5P&ID Fire Protection & Emergency QuenchSystems

';:606=8 1 5 P&ID Flue as Path System

';:6067: 1 5 !"sor"er Di#erter Dam$er & %ou#er Seal !irSids Pi$ing & Instrument Diagram

S)*'! L)! D+*"+m(

';:61602 1 1FD Pro'ect Single %ine Diagram FD ()*+S,- ./S ! !nd .

';:61606 1 5FD ()*+ .alance 0f Plant otor Control Center

! Data Sheet

';:6160: 1 5FD ()*+ .alance 0f Plant otor Control Center . Data Sheet

E'!m!)$+" D+*"+m(

';:61:06 1 5Elementary Diagram Emergency Quench .oosterPum$

D($"u$-) P+)!'(

';:61615 1 1Distri"ution Panel FD .0P Electrical .ldg12*2*)+ !C Distr Panel !

';:61612 1 5Distri"ution Panel FD .0P Electrical .ldg12*2*)+ !C Distr Panel .

';:61655 1 1Distri"ution Panel ICS DCS Electrical .ldg 12*+Critical !C Panel !

';:61652 1 1Distri"ution Panel ICS DCS Electrical .ldg 12*+

Critical !C Panel .DCS I.O W")* D+*"+m(

';:61=25 2 1 ,iring Diagram DCS I0 Ca"inet 4o 5 -ear %eft

';:61=25 6 1 ,iring Diagram DCS I0 Ca"inet 4o 5 -ear -ight

';:61=25 = 1 ,iring Diagram DCS I0 Ca"inet 4o 5 -ear -ight

• ';:61=22 1 1 ,iring Diagram DCS I0 Ca"inet 4o ) -ear -ight

';:61=22 2 0 ,iring Diagram DCS I0 Ca"inet 4o ) -ear %eft

Confidential Information Page ( of 19







Num!" S#!!$ R!% T$'!I)($"um!)$ D+$+ S#!!$(

8/66100 1 0Instrumentation Data Sheet Flo6 IndicatingS6itch

• 8/61000 6 0Instrumentation Data Sheet Pressure7ransmitter

• 8/6600: 1 0Instrumentation Data Sheet agnetic Flo6eter

• 8/65100 2 0Instrumentation Data Sheet ,eld Cli$ Inlet

Duct 7hermocou$lesI)($+''+$-) D!$+'(

8/61058 1 0Installation Detail Pressure 7ransmitter PQ8PI78*:2

• 60796691;/;6001

@U=06171A 1 0Instrumentation 8 Installation Details;Su$$orts<

• 60796691;/;6002

@U=06175A 1 0 Instrumentation 8 Installation Details ;Conduit<

• 60796691;/;6006

@U=06172A 1 0 Instrumentation 8 Installation Details ;Conduit<

• 60796691;/;600:

@U=06176A 1 0 Instrumentation 8 Installation Details ;!ir<

• 60796691;/;600=

@U=0617:A 1 0 Instrumentation 8 Installation Details ;Process<

Confidential Information Page of 19







Num!" S#!!$ R!% T$'!V!)/-" O&M M+)u+'(

U=0=6=1 1 ,et Flue as Desul$huri=ation Pro'ect84o==le %oads > Emergency Quench .oosterPum$

• U=0:=97 1 ,et Flue as Desul$huri=ation Pro'ect >Emergency Quench otor Data Sheet &0utline ;31*(9:3(:9* & 31*5-*:((8*1<

• U=0=6:8 1 ,et Flue as Desul$huri=ation Pro'ect >eneral !rrangement > Emergency Quench

.ooster Pum$• U=0=88= 1

,et Flue as Desul$huri=ation Pro'ect >Quench Pum$ > eneral !rrangement

• U=2=::7 1 FD8Scru""er 8 ae8/$ ,ater !ndEmergency Quench I0 anual

Confidential Information Page : of 19






3 )ro(ess $es(ri*tion

3.1Introduction

The bsorber essel is protecte! (rom (ires an! o"erheating by the Emergency QuenchSystem* /( 3lue Gas temperature be(ore an! a(ter the absorber "essel ecee!s normallimitations, the Emergency Quench System is acti"ate!*

/( Temperature Elements !etect 3lue Gas temperature be(ore the absorber "esselecee!ing 2:0o3 or 3lue Gas temperature a(ter the absorber "essel ecee!ing 180 o3, 'CScontrolle! solenoi! "al"es open an! close to !irect maBe;up %ater an! (ire protection %aterto spray noFFles in the 3lue Gas 'uct to re!uce 3lue Gas !uct air temperature*

This seuence continues (or a set time limit* /( this time limit is ecee!e!, the EmergencyQuench )ump is acti"ate! (or a minimum o( 50 minutes* /( normal operating parametersare met, the pump %ill continue operating (or 50 minutes to protect the pump* +hen thetiming en!s, the pump %ill stop an! a !rain "al"e opens, !raining the Emergency QuenchSystem piping*

/( Temperature Elements 3G;TE;:097;3 ecee! 2:0 o3 an! the temperature continues torise, the Emergency Quench System continues operating* ypass 'amper 3G;<;:500mo"es to the absorber by;pass mo!e %ithin = minutes an! 3G' Scrubber /nlet /solationou"er 3G;<;:51: %ill close*

$nce the 8ypass 'amper an! 3G' Scrubber /nlet /solation ou"er are close! an! the

Emergency Quench Control al"e is open, the Emergency Quench System %ill trans(er topump only mo!e (or stacB liner protection*







3.2System Components

The Emergency Quench System consists o( Emergency Quench ooster )ump an! #otoran! "arious Emergency Quench Control al"es*

3.2.1Emergency Quench Booster Pump and Motor

Fu)$-)

The Emergency Quench ooster )ump is use! to a!! a!!itional cooling %ater i( the (luegas ehaust temperatures be(ore or a(ter the absorber "essel ecee! preset limits* TheEmergency Quench ooster )ump #otor is use! to turn the Emergency Quench ooster)ump*

D!("$-)

The Emergency Quench ooster )ump is use! to a!! a!!itional cooling %ater i( the (luegas ehaust temperatures be(ore or a(ter the absorber "essel ecee! preset limits* TheEmergency Quench ooster )ump, manu(acture! by +eir )umps, has a capacity o( 1:00gpm 190 Total 'ynamic .ea!* The Emergency Quench ooster )ump #otor is use! toturn the Emergency Quench ooster )ump* The Emergency Quench ooster )ump #otor,manu(acture! by TEC$ +estinghouse, is a 6 pole, =0.F, 2 phase, 6=0 C out!oorser"ice, /)+:: protecte! motor %ith a ser"ice !uty continuously rate! 100hp 1800 )#*Starting metho! is (ull "oltage !irect on line, bi;!irectional @counter;clocB%ise (acing the loa!

si!eA* The !ri"e metho! is belt !ri"e !irect coupling* Temperature operating en"ironment is(rom ;5:oC to 60oC, humi!ity H 90I, an! an altitu!e up to 1000 meters* The motor stator%iring is Class 3 insulate! an! the rotor is ma!e o( 1;!ie cast* Cooling metho! is by asur(ace cooling eternal (an ma!e o( con!ucti"e polypropylene %ith a (an co"er an! terminalbo ma!e o( cast iron* The Emergency Quench ooster )ump #otor has a space heater%hich is rate! at 100 %atts single phase 560 C* -oise le"el is 8: ! at 2 (eet*

Confidential Information Page ) of 19






3.2.1Emergency Quench Booster Pump and Motor







3.2.2Emergency Quench Makeup Water Control Valve

Fu)$-)

Emergency Quench Control al"e )Q;<;:0=1 controls #aBeup +ater !uring EmergencyQuench System $peration*

D!("$-)

The 8J Emergency Quench #aBeup +ater Control al"e @)Q;<;:0=1A is a (our hun!re!poun!, 6;%ay (lo% gate "al"e, elan manu(acture!, energiFe! by =0;100 psig air pressureto the "al"e solenoi! to open an! close, @(ails in the last positionA* The solenoi! is mounte!an! pipe! %ith stainless steel tubing an! S%ageloB (ittings* 'CS signals initiate the openingan! closing o( this "al"e by routing compresse! air to the single acting air !iaphragm an!

o"ercoming spring tension to mo"e the "al"e* The Emergency Quench Control al"eSolenoi!, supplie! by either SC$ or SBinner, is po%ere! by 150 olt C %ith imitS%itches to be o( the Top%or Go le"erless type* The "al"e can sustain ser"ice con!itions(rom 0 to 1:00 gpm (lo% at an intaBe pressure o( 18: psig an! an output pressure o( 10psig, or a pressure !i((erential o( 17: psig, an! a maimum shuto(( pressure o( 520 psig 70o3* The maimum noise le"el an operator %ill eperience is 8: ! three (eet (rom the"al"e*

Confidential Information Page 1* of 19






3.2.3Emergency Quench Drain Control Valve

Fu)$-)

Emergency Quench 'rain Control al"e @)Q;<;:0=2A opens to !rain the EmergencyQuench System a(ter Emergency Quench System operations*

D!("$-)

The 8J Emergency Quench 'rain Control al"e @)Q;<;:0=2A is a three hun!re! an! (i(teenpoun!, 2;%ay (lo% gate "al"e, elan manu(acture!, energiFe! by =0;100 psig air pressureto the al"e Solenoi! to open an! close, @(ails to the close! positionA* The solenoi! ismounte! an! pipe! %ith stainless steel tubing an! S%ageloB (ittings* 'CS signals initiatethe opening an! closing o( this "al"e by routing compresse! air to the single acting air!iaphragm an! o"ercoming spring tension to mo"e the "al"e* The Emergency QuenchControl 'rain al"e Solenoi!, supplie! by either SC$ or SBinner, is po%ere! by 150 olt

C %ith imit S%itches to be o( the Top%or Go le"erless type* The "al"e can sustainser"ice con!itions (rom 0 to 1:0 gpm (lo% at an intaBe pressure o( 1:0 psig an! an outputpressure o( @0A psig, or a pressure !i((erential o( 1:0 psig, an! a maimum shuto(( pressureo( 17: psig 70o3* The maimum noise le"el an operator %ill eperience is 8: ! three(eet (rom the "al"e*







3.2.4Emergency Quench ire Protection Control Valve

Fu)$-)

Emergency Quench 3ire )rotection Control al"e, )Q;<;:070, allo%s (or (ire%ater to beuse! (or Emergency Quench operation an!, upon opening, initiates a 20 minute timer tostart Emergency Quench ooster )ump operation (or the Emergency Quench seuence*

D!("$-)

Emergency Quench Control al"e @)Q;<;:070A is a (our hun!re! poun!, 8J, 2;%ay (lo%gate "al"e, elan manu(acture!, energiFe! by =0;100 psig air pressure to the al"eSolenoi! to open an! close, @(ails to the open positionA* The solenoi! is mounte! an! pipe!

%ith stainless steel tubing an! S%ageloB (ittings* 'CS signals initiate the opening an!closing o( this "al"e by routing compresse! air to the single acting air !iaphragm an!o"ercoming spring tension to allo% "al"e mo"ement* The Emergency Quench Control al"eSolenoi!, supplie! by either SC$ or SBinner, is po%ere! by 150 olt C %ith imitS%itches to be o( the Top%or Go le"erless type* The "al"e can sustain ser"ice con!itions(rom 0 to 1:00 gpm (lo% at an intaBe pressure o( 18: psig an! an output pressure o( 10psig, or a pressure !i((erential o( 17: psig, an! a maimum shuto(( pressure o( 520 psig at70o3* The maimum noise le"el an operator %ill eperience is 8: ! three (eet (rom the"al"e*







3.2.5Emergency Quench Control Valve PQ!"V!#$%#&

Fu)$-)

Emergency Quench Control al"e )Q;<;:15: allo%s (or %ater (rom the EmergencyQuench ooster )ump to (lo% to the spray noFFles !uring Emergency Quench System$peration*

D!("$-)

Emergency Quench Control al"e @)Q;<;:15:A is a (our hun!re! poun!, 8J, 6;%ay (lo%gate "al"e, elan manu(acture!, energiFe! by =0;100 psig air pressure to the al"eSolenoi! to open an! close, @(ails in the last positionA* The solenoi! is mounte! an! pipe!

%ith stainless steel tubing an! S%ageloB (ittings* 'CS signals initiate the opening an!closing o( this "al"e by routing compresse! air to the single acting air !iaphragm an!o"ercoming spring tension to mo"e the "al"e* The Emergency Quench Control al"eSolenoi!, supplie! by either SC$ or SBinner, is po%ere! by 150 olt C %ith imitS%itches to be o( the Top%or Go le"erless type* The "al"e can sustain ser"ice con!itions(rom 0 to 1:00 gpm (lo% at an intaBe pressure o( 18: psig an! an output pressure o( 10psig, or a pressure !i((erential o( 17: psig, an! a maimum shuto(( pressure o( 520 psig at70o3* The maimum noise le"el an operator %ill eperience is 8: ! three (eet (rom the"al"e*







3.2.6Emergency Quench Control Valve PQ!"V!#$%#B

Fu)$-)

Emergency Quench Control al"e @)Q;<;:15:A allo%s (or #aBe;Up +ater to (lo% to thespray noFFles in the Emergency Quench System !uring the initial portion o( EmergencyQuench System $perations*

D!("$-)

Emergency Quench Control al"e @)Q;<;:15:A is a (our hun!re! poun!, 8J, 2;%ay (lo%gate "al"e, elan manu(acture!, energiFe! by =0;100 psig air pressure to the al"eSolenoi! to open an! close, @(ails to the open positionA* The solenoi! is mounte! an! pipe!

%ith stainless steel tubing an! S%ageloB (ittings* 'CS signals initiate the opening an!closing o( this "al"e by routing compresse! air to the single acting air !iaphragm an!o"ercoming spring tension to allo% "al"e mo"ement* The Emergency Quench Control al"eSolenoi!, supplie! by either SC$ or SBinner, is po%ere! by 150 olt C %ith imitS%itches to be o( the Top%or Go le"erless type* The "al"e can sustain ser"ice con!itions(rom 0 to 1:00 gpm (lo% at an intaBe pressure o( 18: psig an! an output pressure o( 10psig, or a pressure !i((erential o( 17: psig, an! a maimum shuto(( pressure o( 520 psig at70o3* The maimum noise le"el an operator %ill eperience is 8: ! three (eet (rom the"al"e*

Confidential Information Page 1( of 19






3.3Summari'ed Controls Description

+hen "al"e )Q;<;:070 opens, a 20 minute timer is acti"ate! (rom %ithin the 'CS an! %illsoun! an alarm upon itKs epiration* 'uring this perio!, uench %ater is supplie! (rom theplant (ire system* The maimum cooling supply (rom the (ire system is 65 minutes* $ncethe 20 minute time perio! has epire! or gas path temperature ecee!s 180 o3, the 'CSrealigns the system by isolating the plant (ire system supply, energiFing the EmergencyQuench )ump @)Q;)U;:15:A, an! aligning the pump suction to !ra% %ater (rom the#aBeup +ater System* /( the Emergency Quench )ump !ischarge pressure or (lo% isina!euate an! gas path temperature is still abo"e 1:0 o3, the 'CS %ill align the systembacB to the plant (ire system* $nce gas path temperature !rops to belo% 1:0 o3 (or greaterthan 10 minutes, the 'CS initiates a shut!o%n timer %hich %ill run the Emergency Quench)ump (or an a!!itional 50 minutes an! then %ill shut !o%n the Emergency Quench )ump,

ensure that the plant (ire system supply is isolate! i( it is aligne!, an! open a !rain "al"e to!rain the system (or 10 minutes*







3.4Detailed Controls Description

NOTE2 The (ollo%ing operational !escription can be (oun!on ';:606=:, Sheet 1, e"* 2, P&ID Fire Protection& Emergency Quench Systems*

al"e )Q;<;:070 shall start a timer upon opening, at 20 minutes an alarm %ill signalin!icating maimum usage is about to be ecee!e! an! pump )Q;)U;:15: must start,"al"e )Q;<;:15: must open, "al"e )Q;<;:15: must close, "al"e )Q;<;:0=1 mustopen, an! then "al"e )Q;<;:070 must close to continue system cooling* 3ire protectionsupply has a maimum use time o( 65 minutes %ithout compromising complete plant (ireprotection system integrity*

/( 3G;TE;:098;3 in!icates temperature ecee!ing 180o

3, "al"e )Q;<;:0=1 opens, "al"e)Q;<;:15: closes, pump )Q;)U;:15: starts, an! "al"e )Q;<;:15: opens* 3lo%meter )Q;3E;:0=0 %ill "eri(y system has (lo% an! )Q;)/T;:0=5 %ill in!icate necessarypressure has been reache! (or operation o( spray system* The system %ill run until 3G;TE;:098;3 in!icates 1:0 o3 or less (or a minimum o( 10 minutes, an! then "al"e )Q;<;:070%ill close* /( )Q;3E;:0=0 in!icates no (lo% or )Q;)/T;:0=5 in!icates pressure reuirementsnot met, pump )Q;)U;:15: stops, "al"e )Q;<;:15: closes, "al"e )Q;<;:15: opens,"al"e )Q;<;:070 opens, an! "al"e )Q;<;:0=1 %ill close* The pump %ill operate (or aminimum time !uration o( 50 minutes e"en i( other con!itions are met @(or protection o( thepumpA* t the en! o( the cycle, pump )Q;)U;:15: %ill stop, "al"es )Q;<;:0=1 an! )Q;<;:070 %ill be in the close! position, an! "al"e )Q;<;:0=2 %ill open (or 10 minutes to

!rain the system*

/( 3G;TE;:097;3 in!icates temperature ecee!ing 2:0 o3, "al"e )Q;<;:0=1 opens, "al"e)Q;<;:15: closes, pump )Q;)U;:15: starts, an! "al"e )Q;<;:15: opens* 3lo%meter )Q;3E;:0=0 %ill "eri(y system has (lo% an! )Q;)/T;:0=5 %ill in!icate necessarypressure has been reache! (or operation o( spray system* System %ill run until 3G;TE;:098;3 in!icates 200 o3 or less (or a minimum o( 10 minutes, an! then "al"e )Q;<;:070%ill close* /( )Q;3E;:0=0 in!icates no (lo% or )Q;)/T;:0=5 in!icates pressure reuirementsnot met, pump )Q;)U;:15: stops, "al"e )Q;<;:15: closes, "al"e )Q;<;:15: opens,"al"e )Q;<;:070 opens, an! "al"e )Q;<;:0=1 %ill close* )ump %ill operate (or aminimum !uration o( 50 minutes, e"en i( other con!itions are met @(or protection o( the

pumpA* t the en! o( the cycle, pump )Q;)U;:15: %ill stop, both "al"es )Q;<;:0=1 an!)Q;<;:070 %ill be in the close! position, an! "al"e )Q;<;:0=2 %ill open (or 10 minutesto !rain the system*

/( 3G;TE;:097;3 in!icates a temperature ecee!ing 2:0 o3 an! the temperature continuesto rise, the system %ill continue operating as !escribe!* 'i"erter !amper 3G;<;:500 %illstart to mo"e into the absorber bypass mo!e @= minutes to completeA an! inlet lou"er 3G;<;:51: %ill close* +hen the !amper an! lou"er changes ha"e been ma!e, i( )Q;<;:070is in the open position, the system %ill trans(er to the pump operation mo!e (or long termoperational usage @(or stacB liner protectionA*

Confidential Information Page 1: of 19






4 )ro(ess +lo% $es(ri*tion

Ste* 1.3lue Gas temperature in the 3lue Gas 'uct is monitore! by 15 temperature elements,@3E;TE;:098;3 an! 3E;TE;:097;3A, be(ore an! a(ter the absorber "essel* TheEmergency Quench System is acti"ate! i( 3lue Gas temperature at Temperature Elements3G;TE;:098;3 or Temperature Elements 3G;TE;:097;3 ecee! limitations* e(er to'ra%ing -o* ':606=8, Sheet 1, e"* 5, Flue as Path System Pi$ing & InstrumentDiagram*

Ste* 2.

+hen Temperature Elements 3G;TE;:098;3 or 3G;TE;:097;3 ecee! limitations, 8Jsolenoi! operate! ball "al"e @)Q;<;:070A %ill open an! start a 20 minute timer* +ater

(rom an eisting 8J un!ergroun! (ire protection piping (lo%s through 8J pipe, the open "al"e,an! (ee!s 8J manually operate! gate "al"e @)Q:5:A an! checB "al"e @)Q:56A* e(er to'ra%ing -o* ':606=:, Sheet 1, e"* 2, Flue as Path Desul$huri=ation Pro'ect P&ID FireProtection & Emergency Quench System*

Ste* 3.

+ater (lo%s to an 8J hea!er an! through 8J solenoi! operate! ball "al"e @)Q;<;:15:A*e(er to 'ra%ing -o* ':606=:, Sheet 1, e"* 2, Flue as Path Desul$huri=ation Pro'ectP&ID Fire Protection & Emergency Quench System*

Ste* 4.

+ater (lo% is !irecte! through 8J manually operate! gate "al"e @)Q:27A be(ore passingthrough a #agmeter, a %ater (lo% sensor @)Q;3/T;:0=0A, pressure transmitter @)Q;)/T;:0=5Aan! manually operate! gate "al"e @)Q:28A* e(er to 'ra%ing -o* ':606=:, Sheet 1, e"* 2,Flue as Path Desul$huri=ation Pro'ect P&ID Fire Protection & Emergency Quench System *

Ste* 5.

+ater (lo%s through the 8J emergency uench mani(ol! to ten 2J branch pipes, each branchpipe (ee!ing (our 2L8J spray noFFles @)Q=:10A in the bsorber ypass 'uct* e(er to'ra%ing -o* ':606=:, Sheet 1, e"* 2, Flue as Path Desul$huri=ation Pro'ect P&ID FireProtection & Emergency Quench System*

Ste* 6. pipe re!ucer changes each branch pipe (rom 2K to 5J an! (ee!s (i"e a!!itional 2L8J spraynoFFles @)Q=:10A in the bsorber ypass 'uct be(ore terminating* e(er to 'ra%ing -o*':606=:, Sheet 1, e"* 2, Flue as Path Desul$huri=ation Pro'ect P&ID Fire Protection &Emergency Quench System*








S$! 34/( Temperature Elements 3G;TE;:098;3 in!icate 1:0o3 or less (or more than ten minutesor Temperature Elements 3G;TE;:097;3 in!icate 200o3 or less (or more than ten minutes,8J solenoi! operate! ball "al"e @)Q;<;:070A %ill close an! emergency uenchingoperations cease* e(er to 'ra%ing -o* ':606=:, Sheet 1, e"* 2, Flue as PathDesul$huri=ation Pro'ect P&ID Fire Protection & Emergency Quench System*

Ste* !.

/( emergency uench con!itions continue (or more than 20 minutes, the plant (ire protectionsystem is nearing its reser"e* The 8J solenoi! operate! ball "al"e @)Q;);:0=1A opens,allo%ing maBeup %ater to pass through 8J manually operate! gate "al"e @)Q:02A an! 8JchecB "al"e @)Q:0:A* e(er to 'ra%ing -o* ':606=:, Sheet 1, e"* 2, Flue as PathDesul$huri=ation Pro'ect P&ID Fire Protection & Emergency Quench System*

Ste* ".

)ump @)Q;)U;:15:A starts, 8J solenoi! operate! ball "al"e @)Q;<;:15:A opens, 8Jsolenoi! operate! ball "al"es @)Q;<;:15:A closes to continue system cooling*Emergency Quench al"e @)Q;<;:070A then closes to conser"e 3ire )rotection %ater*e(er to 'ra%ing -o* ':606=:, Sheet 1, e"* 2, Flue as Path Desul$huri=ation Pro'ectP&ID Fire Protection & Emergency Quench System*

Ste* 1#.

#aBe Up +ater (lo%s thru 8J manually operate! gate "al"e @)Q:26A to an 8J to =J inchre!ucer to the emergency uench booster pump* Upon eiting the emergency uenchbooster pump, %ater passes a 6J to 8J pipe re!ucer, checB "al"e @)Q:2:A, an! 8J manuallyoperate! gate "al"e @)Q:2=A* e(er to 'ra%ing -o* ':606=:, Sheet 1, e"* 2, Flue asPath Desul$huri=ation Pro'ect P&ID Fire Protection & Emergency Quench System *

Ste* 11.

+ater (lo%s through no% open 8J solenoi! operate! ball "al"e @)Q;<;:15:A* e(er to'ra%ing -o* ':606=:, Sheet 1, e"* 2, Flue as Path Desul$huri=ation Pro'ect P&ID FireProtection & Emergency Quench System

Ste* 12.

+ater continues through 8J manually operate! gate "al"e @)Q:27A be(ore passing through a#agmeter, %ater (lo% sensor @)Q;3/T;=0=0A, a pressure transmitter @)Q;)/T;:0=5A, an! 8Jmanually operate! gate "al"e @)Q:28A* e(er to 'ra%ing -o* ':606=:, Sheet 1, e"* 2, Flueas Path Desul$huri=ation Pro'ect P&ID Fire Protection & Emergency Quench System *

Confidential Information Page 1) of 19







Ste* 13.+ater (lo%s through the 8J emergency uench mani(ol! to ten 2J branch pipes, each branchpipe (ee!ing (our 2L8J spray noFFles @)Q=:10A in the bsorber ypass 'uct* e(er to'ra%ing -o* ':606=:, Sheet 1, e"* 2, Flue as Path Desul$huri=ation Pro'ect P&ID FireProtection & Emergency Quench System*

Ste* 14.

pipe re!ucer changes each branch pipe (rom 2J to 5J an! (ee!s (i"e a!!itional 2L8J spraynoFFles @)Q=:10A in the bsorber ypass 'uct to termination* e(er to 'ra%ing -o*':606=:, Sheet 1, e"* 2, Flue as Path Desul$huri=ation Pro'ect P&ID Fire Protection &Emergency Quench System*

Ste* 15.

/( temperature Elements @3G;TE;:097;3A measures (lue gas temperatures o"er 2:0 o3 %ithno abatement, the 'i"erter 'amper an! /nlet lou"er %ill close* (ter 'amper an! ou"erposition changes are ma!e, an! Emergency Quench al"e @)Q;<;:070A is still open, theEmergency Quench System %ill trans(er to pump operation (or long term operational use toprotect the stacB* e(er to 'ra%ing -o* ':606=8, Sheet 1, e"* 2, Flue as PathDesul$huri=ation Pro'ect P&ID Fire Protection & Emergency Quench System*




P"-!/u"! R!%(-) Summ+"

R!%(-) D-um!)$ C#+)*!2

A /nitial !ra(t o( !ocument*

5

C

NOTE2 S!! R!%(-) 5+"( 6-" (!6 #+)*!( 7$#) /-um!)$4

Documents

Emergency Quench System