Upload
badrut-tamam
View
216
Download
0
Embed Size (px)
Citation preview
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 1/27
Copyright © 2011 IHI Corporation All Rights Reserved.
Advantage of USC&SC
over Sub-critical
EXCHANGE OF TECHNOLOGY
ON ADVANCED POWER GENERATION
2011.11.16
Power Plant Division
Yasuto Nara
IHI Hanoi Representative Office
2Copyright © 2011 IHI Corporation All Rights Reserved.
Session 2.
Advantage of USC&SC over Sub-critical
Part 1. General Features of USC&SC
Part 2. Advantage
Part 3. Constitution
Part 4. Material
Part 5. Operation & MaintenancePart 6. Conclusion, Q&A
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 2/27
3IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
2.1 General Feature of USC&SC
USC & SC Technology has below features…
- Advantage for reduction of CO2 emission & coal
consumption by High efficiency
- Once-through Steam Flow & Boi ler Constitution
- Optimum Material Selection
- Optimum Water Quality Control Requirement
- Operability Advantage
4Copyright © 2011 IHI Corporation All Rights Reserved.
Session 2.
Advantage of USC&SC over Sub-critical
Part 1. General Features of USC&SC
Part 2. Advantage
Part 3. Constitution
Part 4. Material
Part 5. Operation & MaintenancePart 6. Conclusion, Q&A
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 3/27
5IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
HighPlant
Availabi li ty
CO2 Emissions Reduction Effect
= “ High Availability x High Effic iency” of the Plant
CO2
Reduction
2.2 Advantage of USC&SC
HighPlant
Efficiency
6IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
Higher plant efficiency
(= Higher steam conditions)
Lower fuel consumption
To save operational cost &reduction of environmental pollution
2.2 Advantage of USC&SC
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 4/27
7IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
TYPE
Efficiency
100%L
50%L
Natural
Circulation
Super Critical Once-Through
Variable Pressure
Base
Base
+ 1.7% + 2.4% + 5.6%
+ 0.4% + 3.0% + 6.2%
Steam Condition
(Full load)
16.6MPa
538 / 538℃24.1MPa
538 / 538℃24.1MPa
538 / 566℃
= Steam Condition and Plant Efficiency =
2.2 Advantage – High Efficiency
27.2MPa
600 / 620℃
(Relative values)
Sub-Critical Super-Critical (SC)Ultra Super-
Critical (USC)
8IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
2.2 Advantage – High Efficiency
(from TEPCO Report)
From the theory of
thermodynamics,
thermal effic iency is
increased, if the red
area is increased.
USC&SC has larger area
than sub-critical.
Water-Steam Cycle
USC & SC can achieve
high efficiency
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 5/27
9Copyright © 2011 IHI Corporation All Rights Reserved.
Session 2. Advantage of USC&SC over Sub-critical
Part 1. General Features of USC&SC
Part 2. Advantage
Part 3. Constitution
Part 4. MaterialPart 5. Operation & Maintenance
Part 6. Conclusion, Q&A
10IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
Water
Water
& Steam
Steam
Critical
Point
(22.06MPa)
Super-critical
(& Ultra Super-crit ical)
One-phase flow(No boundary of
water & steam)
Sub-Critical
Two-phase flow
2.3 Constitution – Principle
Principle of Sub-critical vs. USC&SC
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 6/27
IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
2.3 Constitution – Principle
Principle of Sub-critical vs. USC&SC
(Dry Mode)
(from TEPCO Report)
12IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
2.3 Constitution – Boiler Furnace
BOILER 3D View & Photos
3D View of Boi ler Plant
3D View of Boi ler Furnace
Photos of Boiler Furnace
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 7/27
13IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
Economizer
Lower Furnace Pass
(Helical)
Upper Furnace Pass
(Vertical)
Nose
Feedwater Heater Outlet
Heat Recovery Area Wall
Roof
I.P. Turbine Inlet
Reheater
H.P. Turbine Outlet
H.P. Turbine Inlet
Final Super heater
Secondary Super heater
Primary Super heater
S e p a r a
t o r
/ D r a
i n T a n
k
A t t e m p e r a t i n g w a t e r
2.3 Constitution – Once-through Flow
14Copyright © 2011 IHI Corporation All Rights Reserved.
Session 2.
Advantage of USC&SC over Sub-critical
Part 1. General Features of USC&SC
Part 2. Advantage
Part 3. Constitution
Part 4. Material
Part 5. Operation & MaintenancePart 6. Conclusion, Q&A
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 8/27
15IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
Turbine Thrott le Steam Temperature (oC)
(25MPa)
(1,000F) (1,050F) (1,100F) (1,160F)
538 566 593 625
ECO
Furnace
Separator / Separator Drain Tank
Final SH (Heated Tubes)
Final SH (Unheated Tubes)
Final SH Outlet Header
Main Steam Pipe
Final RH (Vertical : Heated Tubes)
Final RH (Vertical : Unheated Tubes)
Final RH Outlet Header
Hot Reheat Pipe
Low-Cr Alloy (Ferritic steel) 9 Cr Alloy (Ferritic steel)
Austenitic steel
A178 C / A210 A1
A213 T2 / A213 T12
SBV62 (eqiv. A302 C)
A213 T91 Super304 A213 TP347H
A213 T91
A387-22 cl.2
Super304 A213 TP347H
A213 T91
A335 P22 A335 P91,P92
A335 P22 A335 P91,P92
A213 T22 A213 T91
A335 P91,P92
A387-22 cl.2 A335 P91,P92
Super-Critical
(SC)
Ultra Super-
Critical (USC)
2.4 Material
Material Selection
16IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
IHI Experience of SUPER 304
Field survey of coal ash corrosion resistance for Super 304
Super 304 shows excellent resistance to high temperature coal
ash corrosion.
Tachibanawan No.1COD : 2000
Inspection : 2004 ,
Design Metal temp. = 623oC,
Location : 4th SH Inlet.
Material : Super 304
2.4 Material
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 9/27
17Copyright © 2011 IHI Corporation All Rights Reserved.
Session 2. Advantage of USC&SC over Sub-critical
Part 1. General Features of USC&SC
Part 2. Advantage
Part 3. Constitution
Part 4. MaterialPart 5. Operation & Maintenance
Part 6. Conclusion, Q&A
18IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
Unit Start up Characteristics
2.5 Operabili ty – Start-up & Load Change
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 10/27
19IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
Unit Load Change Characteristics
2.5 Operabili ty – Start-up & Load Change
20IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
Water
Water
& Steam
Steam
Critical
Point
(22.06MPa)
Super-critical
(& Ultra Super-crit ical)
One-phase flow(No boundary of
water & steam)
Sub-Critical
Two-phase flow
Principle of Sub-critical vs. USC&SC
2.5 Operabili ty – Typ. Start-up Procedure
Once-throughMode
(Dry mode)
RecirculationMode
(Wet mode)
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 11/27
21IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
- “Wet Mode” Operation -
Flow Pattern – Start up (From Cold clean-up to Light-off)
Con.Polishing
P-ValveQ-Valve
Blowdown
2.5 Operabili ty – Typ. Start-up Procedure
Recirculation
Mode
(Wet mode)
22IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
- “Wet Mode” Operation -
Flow Pattern – Start up (Boiler warming and Hot clean-up)
Con. Polishing
2.5 Operabili ty – Typ. Start-up Procedure
Recirculation
Mode
(Wet mode)
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 12/27
23IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
- “Wet Mode” Operation -
Flow Pattern – Start up (Turbine rolling, Synchronization)
Con. Polishing
2.5 Operabili ty – Typ. Start-up Procedure
Recirculation
Mode
(Wet mode)
24IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
- “Wet Mode” Operation -
Flow Pattern – Start up (Wet Mode Operation)
Con. Polishing
2.5 Operabili ty – Typ. Start-up Procedure
Recirculation
Mode
(Wet mode)
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 13/27
25IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
- “Once-through” Operation -
Flow Pattern – Start up (Dry Mode Operation)
Con. Polishing
2.5 Operabili ty – Typ. Start-up Procedure
Once-through
Mode
(Dry mode)
26IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
Basic Control FeatureControl Item Drum Type Once-through Type (Dry Mode)
Unit Load Turbine GV Turbine GV
Main Steam Press. Fuel Flow Feed water Flow(FWF)& Fuel Flow
Main Steam Temp. SH Spray Water FlowMain: Ratio of FWF & Fuel Flow
Sub: SH Spray Water Flow
RH Steam Temp. Steam Temp. Control Gas Damper Steam Temp. Control Gas Damper Feed Water Flow Boiler Feed Pump Boiler Feed Pump
Drum Level Feed Water Flow
2.5 Operabili ty – Auto Control Feature
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 14/27
27IHI000001-003 Copyright © 2008 IHI Corporation All Rights Reserved.
Coal Adaptive control system for Power Station (CAPS)
Efficient used for many kinds of coal
Keeping the optimum performance by correcting the control
parameters automatically
(without select mode PB or parameter tuning by operator)
Change of coal
kind (Changeof coal
property)
Conventional Control(Modification of
various set point in
APC)
Finding optimum control
value by on-line
calculation of heatabsorption when coal
kind changed
CAPS
Boiler
2.5 Operabili ty – Technology for each coal
28
● Other Plants
Calorif ic value
(moist, mineral-matter free ; 1000Btu/Lb)
F i x e d C a r b o n
( D r y , m i n e r a l - m a t t e r f r e e
; % )
Sub-Bitu
Lignite
Bituminous
Anth racite
Classification of Coal Rank (ASTM D388-05)
Fixed
Carbon(Dry, mineral-
matter-
free; %)
Calorific Value(Moist,
Mineral-matter free;
kcal/kg)
Anthrac ite 92 - 98
Semianthracite 86 - 92
Bituminous - 96 6,387 -
Sub-bitu. A 5,832 – 6,387
Sub-bitu. B 5,276 – 5,832
Sub-bitu. C 4,610 – 5,276
Lignite A 3,500 – 4,610
Lignite B - 3,500
Copyright © 2011 IHI Corporation All Rights Reserved.
2.5 Consideration for Sub-Bitu. Coal
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 15/27
29
BlackThunder
(USA)
Adaro Kideco
Proximate Analysis
Moisture % 27.0 24.1 25.7
Ash % 6.1 0.7 1.7Volatile % 36.3 38.7 36.9
Sulfur % 0.5 0.1 0.1
Fixed Carbon % 38.9 36.5 35.7
High Cal. Value kcal/kg 4,942 5,192 4,887
Mineral Analysis of Ash% 34.7 32.2 27.4
% 14.9 27.0 11.0
% 1.2 1.2
% 4.7 21.2 22.7% 20.5 7.7 16.9
% 4.3 2.4 5.1
% 0.4 0.9 0.6
% 1.2 0.3 0.1
% 14.5 8.3 11.2
% 0.8 0.2 0.1
(Indonesia) (Indonesia)
Typ. Sub-bituminous Coal Specifications
•Higher Moisture Content
•Lower Heating Value
•Higher Slagging Potential
(Higher CaO & Fe2O3
contents in Ash
& Low Ash Deforming
Temperature)
Sub-Bitu. characteristics
(As Received)
SiO2
Al2O3
TiO2
Fe2O3CaO
MgO
K2O
Na2O
SO3
P2O5
Copyright © 2011 IHI Corporation All Rights Reserved.
High Cal. Value kcal/kg 5,624 5,600 5,100(moist, mineral-matter free )
2.5 Consideration for Sub-Bitu. Coal
30
Sub-Bitu. characteristics
•High CaO & Fe2O3
contents in Ash
(& Low Ash Deformation
Temperature)
Slagging & Fouling Potential of
Sub-Bitu. is higher than Bitu.
Furnace
・10 to 15% larger Furnace Size
・Optimum Heating Surface
Design
・Optimum SB Arrangement
(Water Cannon for furnace)
To
minimize
・Suitable Furnace Exit
Gas Temperature
Design Consideration
Copyright © 2011 IHI Corporation All Rights Reserved.
2.5 Consideration for Sub-Bitu. Coal
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 16/27
31
EC
O
EC
O
RH
RH
SH
SH
• Optimum Heating Surface Design
(Optimum Panel Pitch)
• Suitable Furnace Exit Gas Temp.
(Not Higher than Ash Fusion Temp.)
Furnace
• Optimum Sootblower, Water Cannon
for furnace
• Low Furnace Heat Release Rates
for slag control
Design Consideration
Copyright © 2011 IHI Corporation All Rights Reserved.
2.5 Consideration for Sub-Bitu. Coal
32
Pulverizer / PAF
20 to 30% larger Size of
Pulverizer and PAF
Sub-Bitu. characteristics
•Higher Moisture Content
•Lower Heating Value
Moisture content & Fuel Consumpt ion
of Sub-Bitu. is higher than Bitu.
Design Consideration
Copyright © 2011 IHI Corporation All Rights Reserved.
2.5 Consideration for Sub-Bitu. Coal
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 17/27
33
Plant Name OutputSub-bituminous coal
mixed fi ring rate (*1)Coal
Japanese Utilit y
(6 units)
600~
1000MW ~40% (*2)
Indonesian Sub-
Bituminous
SMK-1 (IPP) 500MW ~35% (*2,*3)Indonesian Sub-
Bituminous
Tangjung Bin / J imah 700MW ~30% (*4)Melawan
Arutmin
OPPD (USA) 660MW 100% US Sub-bitu. Coal
PPPP (USA) 660MW 100% US Sub-bitu. Coal
SCPP (USA) 998.5MW 100% US Sub-bitu. Coal
IHI’s Ref. List of Sub-bituminous Coal Fired Boiler
(*1) Weight basis mixed firing rate
(*2) Sub Bituminous Coal fir ing was not considered at the original boi ler design.
(*3) After GAH Modification
(*4) Sub Bituminous Coal fir ing was considered at the orig inal design stage.
Copyright © 2011 IHI Corporation All Rights Reserved.
2.5 Consideration for Sub-Bitu. Coal
34
OPPD Nebraska City No. 2 (USA)
- Plant: 1 x 660 MW (Net)
- Type: IHI Natural Circulation
Single Drum Reheat Type Indoor
- Client: Nebraska City Power Partners
(JV of Black&Veatch, Zachry & Kiewit)- Steam Conditions
Capacity: 2,155 t/h
Temp. : 569/567℃ (SH/RH outlet)
Press. : 18.0 MPa (SH out let)
Draft: Balanced Draft
- Completed: 2009
- BEST of the BEST -
IHI’s steam generator was praised as one of th e
six innovative top co al fired plants by “ POWER
MAGAZINE” and was featured on the October
cover.
Copyright © 2011 IHI Corporation All Rights Reserved.
2.5 Consideration for Sub-Bitu. Coal
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 18/27
35IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
2.5 Operabili ty – Water Quality Requirement
Water Quality Requirement
Sub-critical < USC&SC
(more stric t)
Water is vaporized in the tube, and the
impurity can become scaling. Scaling can
cause the clogging & overheating and
finally steam leaking
The impurity is concentrated in the drum,
and the water blow is possible during the
operation.
36IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
2.5 Operabili ty – Water Quality Requirement
AVT; Al l Volati le Treatment (*1) for early target o f s tar t up
CWT; Combined Water Treatment (Normal Operation)
Items UnitBoiler Filling
Allowed
Cold cleanup
Complete
Hot cleanup
Complete
Normal operation
AVT(for Start Up)
CWT(Normal Ope.)
Dea. out O2 ppb ≦ 50(10) N.A. N.A. N.A. N.A.
HPH out
Fe ppb ≦ 100
N.A. N.A. N.A. N.A.Cation conductivity μS/cm ≦ 1.0
pH - 9.0~9.6
ECO in
pH - 9.0~9.6 9.0~9.6 9.0~9.6 9.0~9.7 8.0~9.3
Cation conductivity μS/cm ≦ 1.0 ≦ 1.0 ≦ 1.0 ≦0.25(0.15) ≦0.2
Oxygen ppb ≦ 10 ≦ 10 ≦ 10 ≦ 7 20 to 200
Fe ppb ≦ 100 ≦ 100 ≦ 50 ≦ 10(7) ≦ 2
Cu ppb ≦ 20 ≦ 20 ≦ 10 ≦ 2 ≦ 2
N2H4 ppb ≧ 20 ≧ 20 ≧ 20 ≧ 10 N.A.
SiO2 ppb ≦ 30 ≦ 30 ≦ 30 ≦ 20 ≦ 20Na ppb - - - ≦ 3.0 ≦ 3.0
Cl ppb - - - ≦ 5.0 ≦ 5.0SO4 ppb ≦ 3.0 ≦ 3.0 ≦ 3.0 - -Total OrganicCarbon
ppb≦ 100 ≦ 100 ≦ 100 - -
Total Solid ppb - - - ≦ 50 ≦ 50
Ammonia ppm - - - - -.
Sep.out
Cation conductivity μS/cm ≦ 1.0 ≦ 1.0 ≦ 1.0 - -
Fe ppb ≦ 200≦ 200
(50)≦ 100
(50)- -
( ) shows target figure
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 19/27
37IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
2.5 Operabili ty – Water Quality Requirement
Water Quality Requirement for USC&SC
AVT : Al l Volati le Treatment
Pipe corrosion prevent method which the dissolution of Magnetite(Fe3O4), as a protect film for carbon
pipe, is restraint by pH is kept over 9.0 by volatile matter (NH3, N2H4) and no oxygen condition by N2H4and Deareator.
But, Magnetite(Fe3O4) has rough constitution and high growth speed. Therefore, it can be the cause of
clogging in valve of feed water line and increase of Boiler differential pressure. As for these
countermeasure, the chemical cleaning has been carried out normally.
CWT : Combined Water Treatment
Pipe corrosion prevent method which Hematite(Fe2O3) covers Magnetite(Fe3O4) by slight amount of
Oxygen addition to High Pure Water or High Pure Water with low concentration of NH3.
Hematite(Fe2O3) has close constitution and very small solubility to water. Therefore, it can restrain the
over growth of scale and increase of boiler differential pressure.
AVT CWT
Fe2O3 (upper) Fe3O4
(lower) Fe2O3
38IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
2.5 Operabili ty – Water Quality Requirement
Water Quality Requirement for USC&SC
AVT CWTChemical
Consumption
(at Normal
operation)
100%L
・NH3 :0.8 (l/min)
・N2H4:0.2 (l/min)
75%L
・NH3 :0.6 (l/min)・N2H4:0.15 (l/min)
100%L
・NH3: 0.31(l/min)
・O2 : 2.8(Nl/min)
75%L
・NH3 : 0.23(l/min)・O2 : 2.0(Nl/min)
Boiler Pressure
Drop Increase
Approx. 15kg/cm2 Slightly Increase
(No increase, if water control is
enough)
Chemical Cleaning Once per 4 years Longer Interval than AVT
Condensate Demineralizer
Operating method NH4-OH Type H-OH Type
Regeneration
Interval
1 time / 40 days / 1 line 1 time / 10 – 40 days / 1 line
Waste water volume 288 ton / 20days 288 ton / 5 - 20days
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 20/27
39IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
“ Refreshment & Renovation”
Refreshment : “ Recovering to the original function level”
・Preventive Maintenance
⇒ Decreasing and/or preventing of un-planned outage.
・Repair (Emergency Repair work for failure)
⇒ Quick recovering for operation.
Renovation : “ Modification for fulfi lling new function requirement”・Plant Management condition change
⇒ High Load exchange rate demand, Fuel cost saving, etc.
・Regulation change
⇒ New environmental restriction
2.5 Maintenance
Maintenance
Sub-critical ≒ USC&SC
40IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
Image of “ Refreshment & Renovation”
0
20
40
60
80
100
120
140
0 10 20 30 40 50
Operated years from CODCOD Retirement
Original Function Level
Deterioration
of Facility
Preventive Maintenance
Trouble
Repair
Changing of
Required Function level
Refreshment Renovation
New Function Level
F a c i l i t y F u n c t i o n
L e v e l ( R e l a t i v e )
Schematic of plant condit ion
2.5 Maintenance
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 21/27
41IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
RR Program Plant Name Location Capacity Year Main Contents of Refreshing/Renovation
Renovation of Incheon P.S. 3 / 4 B Korea 325MW 1986Fuel Conversion from Oil Firing to Gas firing.
App ling of Rifl e Tubes fo r Furn ace Tubes
Corner Firing Li ddel l P.S. 1,2,3& 4 B A ustral ia 600MW 1988 Rehabi li tat ion of Boi ler . Replacement of B MS
Boilers Vales Point P.S. 5 / 6 B Australia 600MW 1990 Rehabilitation of Boiler
Yeoungnam P.S. 2 B Korea 700 T/H 1986 Rehabilitation of Boiler Start Up System
B raskem Refi nery 1/3 B B razil 400 T/H 1997 Rehabil it ati on of B oil er Plant
SSAA II P.S. 4 B Malaysia 300MW 2004 Replacement of R.H. and Wide Range Burner
Rehabilitation SSAA II P.S. 3 / 4 B Malaysia 300MW 1992 Rehabilitation of Soot Blowing System
& Renovation Tuank Jaafar P.S. 1/ 2B Malaysia 60MW 1991Replacement Burner System & Modification of GAH
Ash uganj P.S. 3 / 4 / 5B Bangl adesh 500 T/HUnder
Con.Rehabilitation of Boiler
KRPC Refinery
1,2,3,4&5 BNigeria 120 T/H 2003
Replacement of all S.H. Tubes, Furnace WallTubes, Bank Tubes & Eco. Tubes
Kothagudem P.S.
1,2,3&4 BIndia 60 MW 1983 Rehabilitation of Boiler Plant
Lingzi Coal Mine 1 B China CFB 1998 Rehabilitation of Boiler
Tanjung Bin P.S. Malaysia 700MWUnder
Con.
Modific ation for Wide Range Burner
SSAA 3 P.S. 5B Malaysia 500MW 2009 Rehabilitation of Furnace Side Water Wall
Incheon P.S. 1 / 2 B Korea 250MW 1987 Fuel Conversion from Oil Firing to Gas firing.
Fuel Seoul P.S. 4B Korea 426 T/H 1981Fuel Conversion from Coal&Oil Firing to Gasfiring.
Conversion Gresick P.S. 3 / 4 B Indonesia 200MW 1991 Fuel Conversion from Oil Firing to Gas firing.
Seraya P.S. 1,2& 3 B Si ngapore 250MW 2006 Fuel Conver sion fr om Oi l Fi ri ng to Or im uls ion.
This P.S. : Non IHI’s Boiler
Experience in Overseas Modification
2.5 Maintenance
42
- Unit: No. 3, 4 Boiler
- Location: Gresik Power Station, Indonesia
- Client: PT PLN (Persero)
- Capacity: 2 x 200 MW
- Boiler OEM: IHI Corporation
- Fuel: Fuel Oil
Natural Gas (AFT Modif ication)
- Contract Type: Tern Key Base
- Work Scope
Burner System Modification
Pressure Parts Modification
Site Commissioning
- Completed: 1994
2.5 Maintenance – Project Summary
IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
GRESIK 3, 4B GAS FIRING MODIFICATION
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 22/27
43
- Unit: No. 1, 2, 3, 4 Boiler
- Location: CAMACARI BAHIA BRASIL
- Client: COPENE PETROQUIMICA DO NORDESTE S.A.
- Capacity: 4 x 400t/h
- Boiler OEM: IHI Corporation
- Fuel: Fuel Oil
- Contract Type: Supply + TA
- Work Scope
Pressure Parts Improvement
Non-Pressure Parts Replacement
Burners System Replacement
GAH Modification
Site Commissioning
- Completed: 2000
IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
2.5 Maintenance – Project Summary
COPENE BOILER RE-VAMP PROJECT
44
KRPC BOILER RE-TUBING
PROJECT
- Unit: No. 1, 2, 3, 4 Boiler
- Location: Kaduna Refinery, Nigeria
- Client: Nigerian National Petroleum Company
- Capacity: 4 x 150t/h
- Boiler OEM: IHI Corporation
- Fuel: Fuel Oil
- Contract Type: Turn Key Base
- Work Scope
Pressure Parts Replacement
Non-Pressure Parts Replacement
Burners & Auxiliaries Replacement
Site Commissioning
IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
2.5 Maintenance – Project Summary
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 23/27
45
- Unit: No. 1, 2, 3 Boiler for Stage-1
- Location: Jurong Island, Singapore- Client : POWERSERAYA
- Capacity: 3 x 250t/h
- Boiler OEM: Mitsui Riley
- Fuel: Fuel Oil
Orimulsion (AFT Modification)
- Contract Type: Full Tern Key Base
- Work Scope
・Package A
Orimusion Fuel Conversion of Boiler Upgrading of ESP and AHS
・Package B
Installation of FGD system with BOP
- Completed: 2006
IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
SERAYA STAGE-1 ORIMULSION
CONVERSION PROJECT
2.5 Maintenance – Project Summary
46
KAPAR GF-3 U5 FURNACE
WALL REPLACEMENT
- Unit: GF-3 Unit 6
- Location: SSAA Power Station, Malaysia
- Client: Kapar Energy Ventures Sdn Bhd
- Capacity: 500 MW
- Boiler OEM: IHI Corporation
- Fuel: Bituminous Coal
Fuel Oil
Natural Gas
- Contract Type: DDU at site + TA
- Work Scope
Supply of Furnace Wall Panel
Technical Advisor Service at si te
- Completed: 2008
IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
2.5 Maintenance – Project Summary
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 24/27
47
OVERHAULING OF
ASHUGANJI UNIT 4&5
- Unit: Unit 4, 5
- Location: Ashuganji Power Station
Bangladesh
- Client: Ashuganji Power Station Co. Ltd.,
- Capacity: 2 x 150 MW
- Boiler OEM: IHI Corporation
- Fuel: Gas
- Contract Type: Tern Key Base
- Work Scope
- Completed: Under Construction
IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
2.5 Maintenance – Project Summary
48
HUB POWER SH & RH MODIFICATION
- Unit: Unit 4 Boiler
- Location: HUB Power Station
Pakistan
- Client: HUB Power Company Ltd.
- Capacity: 1 x 323 MW
- Boiler OEM: IHI
- Fuel: OIL
- Contract Type: CIF KSA + TA
- Work Scope
Supply of SH Module
Acquis it ion of ASME Stamp
Technical Advisor Service at si te
- Completed: 2010 (Shipment)
IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
2.5 Maintenance – Project Summary
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 25/27
49
YANPET SH ASSEMBLY
REPLACEMENT
- Unit: Unit 4 Boiler
- Location: Yanbu Petrochemical Co.Kingdom of Saudi Arabia
- Client: Saudi Basic Industries Corporation
(SABIC)
- Capacity: 1 x 153 t/h
- Boiler OEM: IHI
- Fuel: OIL
- Contract Type: CIF KSA + TA
- Work Scope
Supply of SH Module Acquis ition of ASME Stamp
Technical Advisor Service at site
- Completed: 2010 (Shipment)
IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
2.5 Maintenance – Project Summary
50IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
IHI Japan PPED (Kansas)
Boiler Customer Support Network
IHI Engineering
Australia (IEA)
IHI Köln Office
CSC in KL (IPSM)
IHI Singapore
2.5 Maintenance
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 26/27
51Copyright © 2011 IHI Corporation All Rights Reserved.
Session 2. Advantage of USC&SC over Sub-critical
Part 1. General Features of USC&SC
Part 2. Advantage
Part 3. Constitution
Part 4. MaterialPart 5. Operability
Part 6. Conclusion, Q&A
52IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
2.6 Conclusion
USC&SC Boiler can be appl ied to your project
with IHI’s boiler and support/assistance !
- Proven & Highly Reliable Design
- High Efficiency & CO2 emission reduction
- Optimum Material Selection
- Operability Advantage
- Optimum Water Quality Control Requirement
7/29/2019 Session01 02 IHI-02. USC&SC vs Sub-Critical Rev.A
http://slidepdf.com/reader/full/session01-02-ihi-02-uscsc-vs-sub-critical-reva 27/27
53IHI000001-003 Copyright © 2011 IHI Corporation All Rights Reserved.
2.6 Q&A
….Please contact us anytime !
IHI Jakarta Representative OfficeK.Mizoshita [email protected]
IHI Hanoi Representative OfficeY.Nara [email protected]