hrsg o&m
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750MW PAPALANTO COMBINED CYCLE POWER PLANT INIGERIA
DEPARTMENT HRSG
HRSG Operation &Maitenane Man!a"
Co#pi"e$% Yan '!e(en
)eri(ie$ S*an +*en
Appro,e$ Tai De*!n
-.t* Ma/ 10-0
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HRSG Operation In2tr!tion
-333333333333433-5
HRSG Maintenane In2tr!tion
-56344333333343333410.
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Chapter 1. 4
Article 1 Brief Introduction. 5
Article 2 Design Criterion of HRSG..
Article ! Boiler "rotection Set #alue. 2$
Chapter 2. 2!
Article 1 %" stea& and 'ater s(ste&.. 24
Article 2 H" stea& and 'ater s(ste&.. !5
Article ! Deaerator s(ste&.. 4)
Article 4 H" *(pass s(ste&.. 4+
Article 5 %" *(pass s(ste&.. )$
Article ) ,ater drain and stea& e-haust s(ste&.. $
Article Ser/ice 'ater s(ste&.. )
Article Inter&ittent *lo'do'n flash tan0 s(ste&.. Article + %ocal *oiler dru& le/el &eter 'ash. 1
Chapter !. 4
Article 1 Accidents disposal principles 5
Article 2 &ergenc( shutdo'n.
Article ! Accident shutdo'n.
Article 4 Accidents disposal +
Chapter 4. 1$+
Article 1 H(draulic *oiler set 11$
Article 2 Safet( /al/es floating. 12$
Article ! aintenance after shutdo'n. 12!
Chapter 5. 14$
Appendix 1: Sketch Map of HP and LP Drum Water Level Fixed Value 141
Appendix : Sketch Map of Deaerator Water Level Fixed Value 142
Appendix !: "he control #et value of HP Drum Po#itive Pre##ure $radient14!
Appendix %& 'heck Li#t of Steam Saturated "emperature. 144
Appendi- 5 Co&&on 3nit Con/ersion a*le. 14
Appendix ( )*uipment# Periodical "e#t# and Periodical "ran#ferrin+ "a,le 15$
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C*apter -
Brie( Intro$!tion an$ De2in Criterion o( HRSG
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Article 1 Brief Introduction
1. General Situations
Model: -$.P$/101).
"2pe: Dou,le.pre##ure3 no after,urnin+ and reheatin+3 #elf inte+rative vertical
natural circulation HS$
Manufacturer: Wuxi 4oiler Factor2
A##orted "ur,ine: P$/101)
Si5e: Hei+ht: /&(m 6/0&0(ft73 Width 1!&89m 6%&1ft7
"he elevation of HP #team drum center i# &/9m;
"he elevation of LP #team drum center i# &08m;
"he elevation of deaerator center i# !&8m;
"he elevation of ,oiler chimne2 i# %9 m 61%&9ft7 and the ,2pa## chimne2 elevation i#
%8m;
14 I""!#ination o( Boi"er Str!t!re
"he ,oiler i# dou,le.pre##ure3 no after,urnin+ and reheatin+3 outdoor #elf inte+rative
vertical natural circulation HS$3
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,2pa## outlet flue ductinlet flue duct of HS$& =n the inlet flue duct3 the flue flo< i#
chan+ed from hori5ontal to vertical3 up into ,oiler ,od2 to flu#h the !rdla2er module#3 nd
la2er module# and 1#tla2er module# and finall2 exhau#ted to the air throu+h the outlet flue
duct and chimne2&
!rdla2er module#: HP #uperheater 6SHP73 HP #uperheater# 1 6SHP17;
ndla2er module#: HP vapori5er 6VHP73 HP coal economi5er ! 6)HP!73 LP #uperheater
6SLP73 HP coal economi5er 6)HP7
1#tla2er module#: LP vapori5er 6VLP73 HP coal economi5er 1 6)HP173 preheater 6P)H7
4. Steam and water process
"he HS$ ha# three pre##ure #ta+e#; Accordin+ to the pre##ure3 it can ,e divided a# the
follo
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Article 2 Design Criterion of HRSG
-4 T*er#o$/na#i a"!"ation o( HRSG 8per(or#ane!arantee$ 9or:in on$ition;4
"he de#i+ned load&
Heat,alance at
flue +a##ide
unit SHP SHP1 VHP1 )HP! SLP1 )HP VLP1 )HP1 P)H
Flue +a#flo of rated flo< 6the 1#tcritical #peed of FDW pump #hould
,e 198> hi+her than the #peed corre#pondin+ to de#i+n
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Lift (8m
Speed /98r?min
ece##ar2 net po#itive #uctionhead %&m
Motor po
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&!&!'heck lu, oil pre##ure normal and oil return #mooth;
&!&%@pen air relief valve and o,#erve the oil #lin+er on ri+ht po#ition;
&!&9'heck the #uction valve# opened;
&!&(When condition# #ati#fied3 #tart the recirculation pump on D'S or in #ite and open the
reect valve# at once& "he reect valve# are not allo hori5ontal multi.#ta+e #u,.#ectional centrifu+al con#tant #peed LP FDW pump:
"he min& flo< for continuou# runnin+ ,ut not dama+in+ i# 9> of rated flo< 6the 1 #t
critical #peed of FDW pump #hould ,e 198> hi+her than the #peed corre#pondin+ to
de#i+n
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"he thermal re#i#tance adopt# Pt188 !.line #2#tem 6t
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'oolin+
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Min permi##ive #peed 1811rpm
. C$ec(s #efore &D' s*stem startup
!&1 'old #tartup check#:
!&1&1'onfirm the in#trument# air pre##ure normal3 all relative valve# verification *ualified and
the po
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%&&1@n LP FDW #2#tem di#pla23 #tart LP FDW pump and open the outlet;
%&&@n LP FDW #2#tem di#pla23 open LP FDW !.
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&9 "he parameter
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value
1Driven end ,earin+ temp& hi+h value
= of LP FWD pump189 Alarm
Driven end ,earin+ temp& hi+h value== of LP FWD pump
118 LP FDW pump trip
!Drivin+ end ,earin+ temp& hi+h
value = of LP FWD pump189 Alarm
%Drivin+ end ,earin+ temp& hi+h
value == of LP FWD pump118 LP FDW pump trip
9
Seal
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intermittent ,lo
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lo< of LP main #team #team drainin+ valve#
1 Preheater pre##ure hi+h 1( ,ar Alarm
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,earin+ ha# independent #urve2 point# 6#in+le Pt1887; the analo+ue #i+nal i# %8mA
D' 6the accepted analo+ue #i+nal ,2 ,u2er #hould have i#olation function#7; the
di#crete i# dr2 contact point
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'oolin+
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Min permi##ive #peed 1811rpm
C$ec(s #efore H &D' s*stem startup
!&1 'old #tartup check#:
!&1&1'onfirm the maintenance fini#hed3
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%&&9 @n HP FDW #2#tem di#pla23 #et the automatic adu#tment #ettin+ value of FDW at
#tartup value and on auto po#ition;
%&&(@n HP FDW #2#tem di#pla23 put the adu#tment valve from HP FDW pipe# to LP ,oiler
on auto po#ition;
%&&0'heck
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&9 "he parameter
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= of HP FDW pump motor
18!.pha#e
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i#olatin+ valve#
!
Pre##ure difference,et
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19HP main #team pre##ure
hi+h value ==0/ ,ar HS$ trip
1(HP main #team flo< over
min& value =!( t?h
Sin+le element controlto three element control
10HP main #team flo #team from
HS$ can ,e #upplied to conden#er directl2& Pre##ure control valve# of HP ,2pa## #team
#2#tem allo< HP #team into conden#er throu+h #team pipe# to adu#t the HS$ #team flo
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1&&&! Hot
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42pa## valve#Spra2
re+ulatin+valve#
Spra2i#olatin+valve#
emark#
Model '05(1.P9!0&0V "p0(%.%&8= "p0(%.%&8=
"2pe an+le
Drivin+ mode h2draulic h2draulic h2draulic
De#i+n pre##ure 0&0 % %
De#i+n temp& 9 (8 (8
"e#t pre##ure 11&( ( (
Valve# material# 1'r1MoV 19'rMo 19'rMo
o55le material# 8'r1i18"i
State after po
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&1&Drivin+ device# of HP ,2pa## device#
ame -nit
42pa## valve#3 #pra2 re+ulatin+ valve#3 #pra2i#olatin+ valve# #ervomotor#
42pa## valve#
#pra2
re+ulatin+valve#
#pra2 i#olatin+
valve#
Manufacturer Jinhua Hui2i Jinhua Hui2i Jinhua Hui2i
model $88 $(% $(%
@il pre##ure MPa 1( 1( 1(
diameter mm 88 (% (%
tran#ect #*uare mm 188 98 98
Workin+ force G !98 !( !(
#troke mm 189 %9 %9
eactin+
time ofcomplete
#troke
Fa#t@pen
S
Fa#tclo#e
Wei+ht G+ %88 11% 188
&1&!@il #tation e*uipment technolo+2 parameter
"he h2draulic actuator oil feedin+ device of each unit ,2pa## device are e*uipped
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'
"2pe'on#tant pre##ure
varia,le
t2& Set
ated oil pre##ure MPa 1(
ated flo< l?min %9
Speed r?min 1%98
Manufacturer Deni#on?Parker
@il tank
Model
t2& #et 1
Workin+ pre##ure MPa 8&1
Workin+ capacit2 L !98
Max oil #tora+e L %88
! filter
Model
Material# Fa,ric
Aperture m 18
Permi##ive
pre##ure difference
MPa 8&!9
Appearance Si5e mm 188X88
% @il pumpmotor
Model
t2& Set
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Po
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&1&%@il #tation oil *ualit2 parameter
@r+anic pho#phate fire re#i#tance oil i# the
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C$ec(s #efore startup
!&1 'heck# ,efore cold #tartup 6overhaul7:
!&1&1'onfirm all e*uipment# cleaned and la,el# re#i+ned;
!&1&'onfirm all in#trument#3 electric and D'S #2#tem normal;
!&1&!'onfirm oil pre##ure #2#tem normal;
!&1&%'onfirm u#er ,lo
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%&! When tur,ine HP c2linder loadin+ load3 if the tur,ine main control valve# are located
,efore inlet pre##ure control mode and the main control valve# open over /9>3 the #et
value of HP ,2pa## pre##ure re+ulatin+ valve# 3 D'S tran#fer# $" control
mode from #tre## control to inlet pre##ure control and the HP ,2pa## pre##ure re+ulatin+
valve# open at con#tant #peed;
%. B*pass s*stem actions during s$utdown
9&1 When D'S receive# #i+nal#:
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& HP ,2pa##
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Article % #*pass s*stem
1. General Introduction
LP ,2pa## #2#tem device i# made up of h2draulic LP ,2pa## valve# 6LP ,2pa## valve#
include de#uperheater73 h2draulic #pra2 re+ulatin+ valve#3 h2draulic #pra2 i#olatin+ valve#;
$" LP ,2pa## #2#tem i# de#i+ned that under all operatin+ condition#3 the 188> #team
from HS$ can ,e #upplied to conden#er directl2& Pre##ure control valve# of LP ,2pa##
#team #2#tem allo< LP #team into conden#er throu+h #team pipe# to adu#t the HS$
#team flo
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1&&& 'onden#er temp& hi+her than #et value;
1&&&! Hot
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)lectric #hut.off valve3
,2pa## valve
Spra2 adu#tin+valve
Spra2 i#olatin+valve
Model '05(!.P1&( "p0(%.%&8' "p0(%.%&8'
"2pe an+le Strai+ht Strai+ht
Drivin+ mode h2draulic h2draulic h2draulic
De#i+n pre##ure 8& % %
De#i+n temp& (&9 (8 (8
"e#t pre##ure 1& ( (
Valve# material# 8 8 8
o55le material# 8'r1i18"i
State after po
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&1&Drivin+ device# of LP ,2pa## device#
ame -nit
42pa## valve#3 #pra2 re+ulatin+ valve#3#pra2 i#olatin+ valve# #ervomotor#
42pa##
valve#
#pra2
re+ulatin+valve#
#pra2
i#olatin+valve#
Manufacturer Jinhua or
Hui2iJinhua or
Hui2iJinhua or
Hui2i
model $% $(% $(%
@il pre##ure MPa 1( 1( 1(
diameter mm % (% (%
tran#ect #*uare mm !%9898
98
Workin+ force G 99 !( !(
#troke mm 9 99 9
eactin+time of
complete#troke
Fa#t@pen
S
Fa#tclo#e
&1&!@il #tation e*uipment technolo+2 parameter
"he h2draulic actuator oil feedin+ device of each unit ,2pa## device are e*uipped
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M'
"2pe'on#tant pre##ure
varia,le
t2& Set
ated oilpre##ure
MPa 1(
ated flo< l?min %9
Speed r?min 1%98
Manufacturer Deni#on?Parker
@il tank
Model
t2& #et 1
Workin+pre##ure
MPa 8&1
Workin+capacit2 L !98
Max oil #tora+e L %88
! filter
Model
Material# Fa,ric
Aperture m 18
Permi##ivepre##uredifference
MPa 8&!9
AppearanceSi5e
mm 188X88
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%
@il pumpmotor
Model
t2& #et
Po
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0)lectricheater
t2& unit 1
Po
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1Mechanical impurit2
contentm+?l a#1!!; 'la##0
4 C*e:2
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%&! When LP ,2pa## pre##ure adu#tin+ valve #et value up to the value over max normal
operatin+ pre##ure3 LP ,2pa## pre##ure adu#tin+ valve i# on clo#e po#ition;
%. #*pass s*stem actions during s$utdown
9&1 When tur,ine #peed i# do3 LP ,2pa## pre##ure adu#tin+ valve #et
value
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1Drain tank level hi+h ,efore LP
#team ,2pa## valve@pen drain valve# 988 mm
Drain tank level lo< ,efore LP
#team ,2pa## valve'lo#e drain valve# 98 mm
! @pen of LP ,2pa## re+ulatin+valve# over certain value
HS$ LP #uperheaterdrain i#olatin+ valve clo#e
8>
%LP ,2pa## do
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control valve
18LP #team ,2pa## pre##ure tran#mitter i#olatin+
valve@pen
11 LP #team ,2pa## pre##ure tran#mitter i#olatin+valve @pen
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Article 'ater drain and steam e;$aust s*stem
1. General Introduction
"he function# of
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valve# and #uperheater outlet drain valve# on half or full open po#ition over !min at
lea#t3 clo#e them in turn 6HP pre##ure at 8&80MPa or #team flo< meet# re*uirement#3
#uperheater drain valve# can ,e clo#ed accordin+ to Han+5hou 4oiler document#7
&&When HP pipe drain valve# at HP ,2pa## HP valve inlet opened over !min at lea#t and
HP ,2pa## HP valve# open over 8>3 clo#e the valve#;
&&/When HP pipe# drain valve# at HP ,2pa## pre##ure re+ulatin+ valve# and tur,ine main
control valve# inlet opened !min at lea#t and HP pipe# drain valve# at #uperheater#
outlet3 HP #team flo< element inlet3 HP ,2pa## contact main #team flo< do
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&&10 After LPS outlet drain valve# and LP #team flo< element inlet drain valve# opened for
!min at lea#t and LP ,2pa## pre##ure re+ulatin+ valve# open at 8> at lea#t3 the2 are
allo
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Article 6 Ser5ice water s*stem
1. General Introductions
Service
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%&% 'heck openin+ 'W operation normal;
%&9 'heck +roundin+ +ood and motor# in#ulation *ualified;
%&( 'heck +roundin+ +ood and motor# in#ulation *ualified;
%&0 'heck pump outlet pre##ure and flo< normal;
% C$ec(s during ser5ice water in ser5ice
9&1 'heck the outlet pre##ure and flo< normal;
9& 'heck the pump vi,ration
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Article 7 Intermittent #lowdown flas$ tan( s*stem
1. General Introduction
'u,a+e: m!
"he fla#h tank i# u#ed to collect HP drum continuou# ,lo
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cu,a+e m!
Actionpre##ure of
#afet2 valve#MPa
Model ...
A5aila#ilit* of Intermittent #lowdown s*stem
!&1 'heck maintenance fini#hed3 e*uipment# +ood and #ite clean;
!& 'heck
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9&! 'heck the intermittent ,lo
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9&% 'lo#e local Lv& meter ' #econdar2 drain valve at #team #ide on HP drum [1 and open
local Lv& meter ' #econdar2 drain valve at
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C$apter
Accidents and &aults Disposal of HRSG
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Article 1 Accidents disposal principles
1 =f accident# happen3 the operator# #hould di#po#e the accident# a# #oon a# po##i,le
accordin+ to #hift en+ineer command;
After accident# happen3 take an2 method to prevent accident# expan#ion and to limitaccident# #cope or remove real cau#e#;
! =f an2 fault# not on re+ulation# happen3 the operator# #hould ud+e the fault# correctl2
accordin+ to meter# and in#trument# and e*uipment# reflection addin+ the operation
experience and then take #ome effective mea#ure# to di#po#e the fault# in time;
% Accordin+ to the characteri#tic# of com,ined +a#.#team c2cle unit3
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Article 2 9mergenc* s$utdown
=f an2 of the follo
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Article Accident s$utdown
=f an2 of the follo
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Article 4 Accidents disposal
1 85erfeed of water into #oiler
1&1 'au#e#:
1&1&1Auto re+ulatin+ device# of FDW unavaila,le or re+ulatin+ actuator# on fault3
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1&!&9 =f the
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!&1&4lo
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%&! Di#po#al:
%&!&1 =f
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o& fault# di#po#al
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o& fault# di#po#al
impeller# 6,7
1!
Proportion and vi#co#it2 of
tran#portin+ medium overre+ulation#
6,7
19 Speed too hi+h 6,76c7
1( Seal dama+ed 'han+e the #eal
10 Shaft #eal dama+edDecide
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o& fault# di#po#al
9 Lu, oil le## or not *ualifiededuce or increa#e lu, oil*uantit2 or improve lu, oil*ualit2
( 'oupler +ap not a# re+ulatede+ulate the coupler +ap a#erection re+ulation
0 Volta+e too lo<
Motor# runnin+ under pha#e# 'han+e fu#e; check circuit#;
/ 'onnectin+ ,olt# loo#ened "i+ht ,olt#; chan+e ne< plate#;
!8 otor not ,alanced'lean rotor; take d2namic,alancin+ on rotor
!1 4earin+ dama+ed 'han+e ne< ,earin+
! Flo< not #ufficient =ncrea#e min flo and the damper# po#ition mu#t
,e connected to D'S ,2 hard.
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do
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preheater#
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re*uirement#3
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-4 Genera" Sit!ation
"he #tead2in+ of ,oiler runnin+ parameter# are clo#el2 related to external load chan+in+
and ,oiler inner factor# variet2& An2 of a,ove factor# chan+ed3 the ,oiler runnin+
#ta,ili5ation and #afet2
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!&1 "he indication# of local dou,le colored level meter# at ,oth #ide# #hould ,e the #ame& =f
not3 take
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#tartup and #hutdo
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(&1&("he +la## level meter# #hould ,e ,lo
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C*apter -0 HRSG Per(or#ane para#eter2
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"he de#i+n performance of thi# ,oiler
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C*apter -- HRSG S*!t$o9n operation2
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"he #hutdo
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&1 After '"$ #hutdo
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%& Di#po#al after #hutdo
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C*apter -1 HRSG #aintenane a(ter
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-4 Maintenane p!rpo2e
1&1 =f the interval# of unit #tartup i# lon+er 6over a
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. eduction: HQQe.NNRH 67
@Q%e.QH@NNR% @H. 6!7
When ferrum contact#
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Which maintenance mea#ure
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200/230
=f the #uccedent ,oiler commi##ionin+ take# place after (
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201/230
At h ,efore ,oiler unloadin+3 do#e H!
to en#ure ,oiler
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202/230
LP main #team i#olatin+ valve: 11L4A8AA881
FDW i#olatin+ valve# mu#t ,e clo#ed:
HP FDW pump outlet i#olatin+ valve#: 11LA411AA88!3 11LA41AA88!3 11LA41!AA88!
LP FDW pump outlet i#olatin+ valve#: 11LA4!1AA88!3 11LA4!AA88!3 11LA4!!AA88!
Drum# continuou# ,lo
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203/230
little ,it 618.98m,ar7;
%&1&(@peration durin+ ,oiler #hutdo
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204/230
%& Partial
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205/230
=n ,oiler control room3 operator# tran#fer ,oiler to #hutdo
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@pen HP drum nitro+en ,lanketin+ valve: 11HAH18 AA%9
@pen LP drum nitro+en ,lanketin+ valve: 11HAH!8 AA%9
@pen deaerator nitro+en ,lanketin+ valve: 11L'A/8 AA%9
@pen preheater nitro+en ,lanketin+ valve: 11L'A08 AA%9
@pen HP) nitro+en ,lanketin+ valve: 11LA48 AA88
With #team conden#ed and furnace pre##ure do
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HP main #team drain valve: 11L4A08 AA%8
HP main #team drain valve: 11L4A8 AA%8
%&%&Step# of dr2 nitro+en ,lanketin+ under cold #tate
When take dr2 nitro+en ,lanketin+ protection under cold #tate3 the follo
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208/230
C*apter - HRSG Dai"/ Maintenane
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209/230
Durin+ ,oiler runnin+3 the operator# #hould take check# at the #ame time; moreover3 in
order to en#ure unit #afe and normal runnin+ and extend the unit life3 the ,oiler #hutdo
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210/230
&!&9Shutdo
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211/230
&1! 'heck ,oiler all out#ide #urface3 pipe#3 electric and pneumatic line# and operation
panel#;
&1% epair and maintain a# relative check and maintenance in#truction mea#ure# re+ulated
or commended ,2 #upplier#;
&19 eplace in#pection door# #eal +a#ket# and clo#e the in#pection door#;
&1( After ,oiler final check fini#hed3 keep ,oiler on #pare #tate;
4 4 Proe22
!&1-#a+e of ca#in+ and in#pection door# and +a#ket# #eal;
!&1&1emove the door# to en#ure the2 are #afe;
!&1&'lean ,oth #ide# of old in#pection door# +a#ket#
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212/230
'heck
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213/230
"a,le !&1 !88mmC%88mm +a#ket#
Pre##ure
,ar+
Manhole# "2pe Hard
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214/230
!8%SS
8.8Mechanical
proce##in+ flat
Wrou+htmanhole#
cover#3 nut#3
,olt# andarticulation#
$raphite +a#ket#
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215/230
!&&All #eal connectin+ #hould ,e #ealed
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216/230
C*apter -6 HRSG #aintenane proe22
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217/230
-4 Genera" Intro$!tion
=n thi# chapter3
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!&% Annual maor in#pection
$enerall23 annual check#3 maintenance and unit #hutdo
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219/230
pre##ure
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220/230
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221/230
e*uipment# vi,rate;
An2 pro,lem# a,out in#trument# 6i&e&: indication# ,et
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222/230
&!&% @pen header pipe# i#olatin+ valve#;
&!&9 @pen po#itive pre##ure #ide inlet valve# #lo
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223/230
/&1&&( When clo#e manhole#3 u#e ne< +a#ket# and ,efore clo#e in#pection door# for
re#tartin+ ,oiler3 en#ure there i# no one and external e*uipment# in ,oiler;
-04 Pre,entati,e #aintenane o( (ra#e2 an$ 2!pport2
18&1 Dail2 maintenance
Durin+ HS$ normal runnin+3 periodicall2 check the pipe# #u#pender# ,et
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224/230
reducin+ a+ent . 1?#hift
'hloride 1?#hift 1?#hift
Pho#phate or chemical
additive#
. 1?#hift
Silicon Periodical Periodical
"otal #alt content Periodical Periodical
@il and lu,ricatin+ a+ent# Periodical Periodical
@r+anic matter# Periodical Periodical
-14 S*e$!"e o( HRSG #aintenane an$ *e:2
'ontent# "ime
Shift Da2 Week Month
Half a2ear
ear @ther# emark#
$eneral runnin+ data [
Look ,ack ,oiler and
auxiliarie# runnin+record# [
Heat exchan+er# [ [
"ake h2draulic #et
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225/230
record#
Superheater#metallur+2 detection
! 2ear#
Pipe#
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226/230
'heck electric heater# [
'heck ,earin+# 9888h
LP FDW1 [ [ [ [ [
Vi,ration record [ [
Lu,ricate ,earin+ [
'heck electric heater# [
'heck ,earin+# 9888h
LP FDW [ [ [ [ [
Vi,ration record [ [
Lu,ricate ,earin+ [
'heck electric heater# [
'heck ,earin+# 9888h
LP FDW! [ [ [ [ [
Vi,ration record [ [
Lu,ricate ,earin+ [
'heck electric heater# [
'heck ,earin+# 9888h
ecirculation pump ofP)H 1
[ [ [ [ [
Vi,ration record [ [
Lu,ricate ,earin+ [
'heck electric heater# [
'heck ,earin+# 9888h
ecirculation pump ofP)H
[ [ [ [ [
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Vi,ration record [ [
Lu,ricate ,earin+ [
'heck electric heater# [
'heck ,earin+# 9888h
@pen?clo#e valve# [ [ [
'heck leaka+e: linin+3flan+e3 +a#ket#3ti+htne##
[
e#eal packin+ ,oxe# [
Lu,ricate valve# handle [
unnin+ valve#3 full#troke
[
'heck ti+htne## [
e+ulatin+ valve#
'heck leaka+e: linin+3flan+e3 +a#ket#3ti+htne##
[
e#eal packin+ ,oxe# [
Lu,ricate valve# handle [
Full #troke runnin+valve#3 check po#itioncorrect
[
'heck re+ulatin+ valve#carefull23 then take
di#a##em,le
[
Actuator [ [
Lu,ricatin+ [
'heck po#ition #
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228/230
runnin+
'heck fire.re#i#tance [
Full #troke runnin+actuator
[
e.lu,ricate6open?clo#e valve#7
(.
2ear#
e.lu,ricate6open?clo#e valve#7
.!
2ear#
'ontinuou# ,lo
-
8/10/2019 HRSG O&M
229/230
Filter# [
'lean all filter #ieve [
=ntermittent andcontinuou# ,lo
-
8/10/2019 HRSG O&M
230/230
Heat pre#ervation [
Vi#ual determination [
"ran#mitter# [ [
'heck #urve2 accurac2 [
Drain pre##ure pipe#and refeed
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