Drum Boiler (Natural/Forced Circulation)
Drum boilers are used for subcritical pressure steam conditions. Drum boiler is a proven technology and is suitable for middle to small capacity plant.
Mitsubishi drum boilers can adopt two kinds of circulation system, that is natural circulation and forced circulation (assisted circulation).
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| Natural Circulation | Forced Circulation |
Drum operation pressure up to 18.3 MPa (Natural Circulation) / 19.7 MPa (Forced Circulation) is realized by optimized circulation system design.
REFERENCE UNITS
China, Zuhai Thermal Power Station 1-2B
(2,290 t/h, 18.1 MPa 541/568)
(2,290 t/h, 18.1 MPa 541/568)
Kobe Steel, Kakogawa 7B (450 t/h, 16.7 MPa 566/538)
China Zuhai Thermal Power Station No.1-2
Specifications
| Type | : | Forced Circulation Reheat Boiler |
| Maximum Continuous | ||
| Evaporation Rate | : | 2,290t/h |
| Steam Conditions | ||
| Superheater Outlet | : | 541°C / 18.1MPa |
| Reheater Outlet | : | 568°C |
| Main Fuel | : | Coal |
| Commercial Operation | : | June 1998(No.1) |
| December 1998(No.2) | ||
Kobe Steel, Kakogawa Mill No. 7 Boiler
Specifications
| Type | : | Natural Circulation Reheat Boiler | ||||||
| Maximum Continuous Evaporation Rate | : | 450 t/h | ||||||
Steam Conditions
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| Main Fuel | : | Imported Coal / Gas | ||||||
| Commercial Operation | : | November 1996 | ||||||
Features
- High Pressure Natural Circulation
For better plant efficiency and maintainability. - Advanced Combustion System
CUF (Circular Ultra Firing), A-PM burner and MACT - The 1997 Excellent Energy Saving Equipment Award by The Japan Machinery Federation
Business Segment: Power Systems
