Boiler Final (2)

7/21/2019 Boiler Final (2)

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WELCOME TOWELCOME TO

CGPL MUNDRA ,UMPPCGPL MUNDRA ,UMPP

PresentationPresentationOnOn

5 X 800 MW5 X 800 MWSUPERCRITICAL BOILER SUPERCRITICAL BOILER

ntroduction

“BOILER” MEANS ANY CLOSED VESSEL EXCEEDING 22.75 litres INCAPACITY !IC! IS "SED #OR GENERATING STEAM "NDER

PRESS"RE.

Industrial Boiler Industrial Boiler

Utility boilersUtility boilers

Utility Boilers may further Classified into two categoryUtility Boilers may further Classified into two category

Sub criticalSub critical

Super critical :- Above 22!2 bar " #$%!&Super critical :- Above 22!2 bar " #$%!&''CC

Difference between sub critical & supercritical

ifference between sub critical & supercritical

Sub(Critical Boiler Sub(Critical Boiler

+ e m p e r a t u r e , ' C

.ntropy /0 1 /g /

&*2 ')C

ENTROPY

7 0 1 K

g / c m 2

er c r i t i c al

S$% &riti&'lS$% &riti&'l

+his consist drums for+his consist drums for

separation of steam " water separation of steam " water

6ertical 7ater 7all!6ertical 7ater 7all!

8atural circulation or forced8atural circulation or forced

circulationcirculation

9ied pressure mode9ied pressure mode

S$(er Criti&'lS$(er Criti&'l

8o ;rum! Separators are here8o ;rum! Separators are here

for separation of steam " water!for separation of steam " water!

Spiral 7ater wall!Spiral 7ater wall!

Assisted circulation! <nce Assisted circulation! <nce

through!through!

Sliding pressure operationSliding pressure operation

SUPE RCR T CALTHERM AL CCLE AD!A"TA#ES

UPERCR T CALTHERM AL CCLE AD!A"TA#ES

Improvements in plant efficiency !Improvements in plant efficiency !

;ecrease in Coal Consumption;ecrease in Coal Consumption

=eduction in >reen ?ouse gases!=eduction in >reen ?ouse gases!

<verall reduction in Auiliary 4ower consumption!<verall reduction in Auiliary 4ower consumption!

$%%% M& UMPP MU"DRA 'oiler() $%%% M& UMPP MU"DRA 'oiler()

It is single reheat@ tangential fired@ balance draft@ once through coal firedIt is single reheat@ tangential fired@ balance draft@ once through coal fired

Boiler having a generation capacity of $' /g1Sec!Boiler having a generation capacity of $' /g1Sec!

'*ILER'*ILER SPECI+ICATI*"SPECI+ICATI*"

DescriptionDescription unitunit

S)! STEAM #LOS)! STEAM #LO T)!RT)!R 25252525

S! STEAM PRS! STEAM PR *G)CM*G)CM22 25+25+

S! STEAM TEMPS! STEAM TEMP ,,CC 5+-5+-

R! STEAM #LOR! STEAM #LO T)!RT)!R 7/27/2

R! STEAM TEMP O"TLETR! STEAM TEMP O"TLET ,,CC 5-05-0

#EED ATER TEMP#EED ATER TEMP

CC 2-52-5

'oiler Accessories 'oiler Accessories

4rimary Air 9an ,2 &' :- supplies primary air to 4ulverier 4rimary Air 9an ,2 &' :- supplies primary air to 4ulverier

9orced ;raft 9an ,2 &' :- supplies air for combustion9orced ;raft 9an ,2 &' :- supplies air for combustion

Induced ;raft 9an ,2 &' :- .tract flue gas from the system!Induced ;raft 9an ,2 &' :- .tract flue gas from the system!

Seal Air 9an , 2 '' :- provide sealing to coal mill!Seal Air 9an , 2 '' :- provide sealing to coal mill!

Scanner " cooling air 9an ,2 '' :- for cooling of pep holesScanner " cooling air 9an ,2 '' :- for cooling of pep holes

Burners ,* for coal@ for D;<1?9< common " 2 for ?9< at * elevationsBurners ,* for coal@ for D;<1?9< common " 2 for ?9< at * elevations

Boiler recirculation 4ump , for startup purposeBoiler recirculation 4ump , for startup purpose

9lash tanE :- one for collection of drains9lash tanE :- one for collection of drains

Soot blowers , #2 F' for eco " &2 for furnace-Soot blowers , #2 F' for eco " &2 for furnace-

Silencers:- to damper noise pollutionsSilencers:- to damper noise pollutions

Safety valves:- to protect overpressurising of system!Safety valves:- to protect overpressurising of system!

Bo i l e r L e f t B o

i l e r F

r o n t

Bo i l e r R i g ht

B o i l e

r R e a r

Boiler #-; ;iagram and Boiler 8omenclature

ATER ALL

O)L !EADER

INTERMEDIATE!EADER

BOTTOM RING

!EADER

I)L !EADER

ECONOMISER

O)L !EADER

ECONOMI1ER I)L !EADER

EXTENDED ATER ALL

O)L !EADER

BAC*PASS "PPER

SIDE !EADER

BAC*PASS LOER

RIG!T SIDE !EADER

EXTENDED

ATERALL

ROO# I)L

!EADER

ROO# O)L

!EADER

LTS! O)L

!EADER

BAC*PASS LOER

REAR !EADER

LTS! I)L !EADER3

BAC*PASSLOER

#RONT !EADER

S"PER!EATER

DES"PER!EATER

SPRAYSTAGE 3

S"PER!EATERI)L !EADER

DIVISIONAL

O)L !EADER

DIVISIONAL

I.)L !EADER

S"PER!EATER

O)L !EADERMAIN STEAM3

S"PER!EATER

DES"PER!EATER

SPRAYSTAGE 23

BOILER ATER #LO BLOC* DIAGRAM

#ROM B#P DISC!ARGE

A#TER !P!

MAIN STEAM O)L

ClicE 8ame to see 4hotograph of that particular Item

Intermediate

Header

54.42mtr

Economiser

I/L Header

49.62 mtr

Economiser Coils

Backpass

Lower ront

Header

L!"H I/L Header

#Backpass Lower $ear

Header%

Economiser &/L Header

"H I/L"H &/L

'aterwall

Header

L!"H &/L Header

$oo( &/L Header

$H I/L

$H &/L$oo( I/L

Header

irst )ass Lower Header

#Bottom $in* Header%

+., mtr

Backpass

Lower "ide

Header

Front Pass

Middle Pass

Back Pass

H Header

Economiser Inter -ediate Header

C Header

4osition of all headers in boiler

;ivisional S? I1D and <1D hedaer are not shown here

MAIN STEAM

FromBFPDischarge Boiler

Recirculation Pump

Boiler FeedPumpDischargeHeader

Economiser I/Header!"#$%mtr

Economiser &oils

TSH I/ Header

Bac'passo(er FrontHeader

IntermediateHeader)!#!%mtr

(Backpass Lower RearHeader)

Economiser */ Header

First Pass o(er Header +#, mtr

Di-isional SH I/

Di-isional SH*/ FSH I/

FSH */

Roo.I/Header+#0")mtr

1ater(all*/Header

Seperator 2Nos3!4

SeperatorStorage Tan' 2Nos304

DSH #1

DSH #2

Spiral Tu5es 2%6% 7%4 8!$!

9ertical tu5es2!$! 7 64826!+ 7 !4 806"%

TSH */ Header

Roo. */ Header

Bac'pass Roo.

Bac'pass e.t: RightSide1all

E;tended (ater(all

First and MiddlePass Roo.

Reheater

Boiler

Diagram

FASH TAN<

1R0$mtr

=R0$mtr

+6#6! mtr

MAIN STEAM

Di-isional SH I/

DSH #1

DSH #2

0# F>RNA&E 1A RISER PIPE 9ENT INE SEPERAT*R

%# F>RNA&E 1A RISER PIPE 9ENT INE SEPERAT*R

6# F>RNA&E 1A RISER PIPE 9ENT INE SEPERAT*R

!# F>RNA&E 1A RISER PIPE 9ENT INE SEPERAT*R

)# &*NNE&T*N PIPE 9ENT INE FR*M SEPERAT*R A?

,# S>PERHEATER DES>PERHEATER *>TET IN< 9EN

+# REHEATER INTERMEDIATE HEADER 9ENT INE

00# F>RNA&E R**F *>TET IN< 9ENT INE

"# S>PERHEATER FINISH INET IN< 9ENT NE

0# E&*N*MISER *>TET HEADER 9ENT INE

B B B B

& & & &

D D D D

A A A A

A B & D

$ ", + 0 00

0%# MAIN STEAM 9ENT INE Nos 3 %

06# EE&TR*M*TI9E REIEF INE 9ENT Nos 3 %2RI@HT

$# REHEATER *>TET HEADER 9ENT

0!# MAIN STEAM SAFET 9A9E Nos 3 %2RI@HT : EFT4

0)# MAIN STEAM SAFET 9A9E Nos 3 %2RI@HT : EFT4

0$# SEPERAT*R &*NNE&TI*N IN< SAFET 9A9E Nos

VENT HEADER

0,# FASH TAN< STEAM 9ENT INE

MAIN STEAMDi-isional SH I/

DSH #1

DSH #2

Reheater

FASH TAN<

0 % 6 ! ) $ ,

%#F>RNA&E FIRST PASS *1ER REAR AND FR*NT HEADER DRAIN

6#INTERMEDIATE HEADER DRAIN

!#F>RNA&E R**F INET HEADER DRAIN

)#BA&< PASS *1ER SIDE HEADER DRAIN

$#BA&<PASS *1ER REAR HEADER DRAIN

0#E&*N*MISER INET HEADER DRAIN

,#S>PERHEATER FINISH INET HEADER DRAIN

DRAIN HEADER

THA", *UHA", *U

!0))I1 &$

-II1 )IECEI B$) "3C!I&

B&ILE$ ILL )3-)DI"CH0$1E !& EC& I/L

&$ B&ILE$ ILLI1

!0))I1 &$

"/H ")$0

B$) DI"CH0$1E

EC& I/L HE0DE$

D$0I LIE

E$!IC0L !3BE"

")I$0L !3BE"

")I$0L !3BE !&

E$!IC0L !3BE

B3C7 "!0

$&- "E)E$0!&$

B0C7)0""

"IDE '0LL#LE!%

E!EDED '0!E$ '0LL

"IDE '0LL#LE!%

B0C7)0"" L&'E$ $I1H!

HE0DE$ D$0I

B0C7)0"" L&'E$ LE!

HE0DE$ D$0I

E!EDED '0!E$ '0LL

&/L HE0DE$ !&

B0C7)""

L&'E$ $&! HE0DE$

-0I "!0E- &/L

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