Transcript Document

660MW vs 500MW
PARAMETERS
UNIT
660 MW AT
BMCR
5000 MW AT
BMCR
T/HR
2225
1625
KG/CM2
256
178
SH STEAM TEMP
0C
540
540
RH STEAM FLOW
T/HR
1742
1397.4
RH STEAM TEMP
INLET
0C
DESCRIPTION
S/H STEAM FLOW
SH
STEAM PR
RH STEAM TEMP
OUTLET
RH STEAM PRESS
OUTLET
340
299
540
0C
568
41.9
KG/CM2
46.61
0C
289.64
255
PR. DROP IN SH SYSTEM
KG/CM2
49.2
17
PR. DROP IN RH SYSTEM
KG/CM2
1.69
2.1
FEED WATER TEMP
PHYSICAL
1. NO DRUM
2. ECONOMISER BANKS & O/L HEADER
3. TWO STAGES OF REHEATER
4. FINAL SUPER HEATER (COUNTER FLOW)
5. MAIN STEAM & HRH O/L HEADERS
6. SPIRAL WALL
7. VERTICAL BUCK STAYS
8. ELECTRO HYDRAULIC SAFETY VALVES
9. BA HOPPERS 6 NOS.
10. ESP PASSES 6 NOS.
11. AXIAL ID FANS
12. LDO & HFO SYSTEMS
13. BOILER FILLING ONLY THROUGH ECO FEED LINE
14. OXYGENATED WATER TREATMENT
MATERIALS
DESCRIPTION
500 MW
660 MW
ECONOMISER
SA210Gr A1
SA210Gr C
WATER WALL
SA210Gr C
SA213T22
DRUM/SEPERATOR
SA299
SA302C
LTSH
SA213T11
SA213T11,23,91
DIVISIONAL SH
SA213T11,22,91
FINAL SH
SA213 T22,91
and TP347H
SA213T11,23,91, 92
LTRH
SA213T11,22
SA210GrC, SA213T12, 23
FINAL RH
SA213 T22,91
and TP347H
SA213T23,91,
Super304H
SH OUTLET HEADER
SA335P22
SA335P91
RH OUTLET HEADER
SA335P22
SA335P23, P91
PRESSURE PARTS MATERIALS :
SECTION
MATERIAL
Economizer Tubes
SA210C
Evaporator
Tubes
Spiral
SA213T22
Vertical
SA213T22
Primary
SA213T23,
T91
Secondary
SA213T12,
T23, T91
Final
SA213T23,
T91, T92
Superheater
Tubes
Reheater
Tubes
Primary
Final
Separators
Headers
SA210C,
T12, T23
SA213T23,
T91,
SUPER304
H
SA302C
SH outlet
SA335P91
RH outlet
SA335P91
Material
Oxidation
Criteria ℃
SA-210C
454
SA-213T2
482
SA-213T12
552
SA-213T22
593
SA-213T23
593
SA-213T91
649
SA-T92
649
SUPER304H
760