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The Company has its own proprietary technology for drum type boilers based on the natural circulation design.
Drum type boilers with natural circulation system can be used up to a pressure of 200 bar(g).
Available drum type designs:
TPI (two pass integral)
- Sub-critical conditions
- Suitable for gas and oil firing
- Compact design with one gas pass parallel to the furnace
- Membrane wall construction
- S/H and economiser fully drainable
Box
- Sub-critical conditions
- Suitable for gas and oil firing
- Compact design with two gas passes above the furnace
- Membrane wall construction , with ribbed tubes when required
- S/H, R/H and economiser fully drainable
- R/H temperature control by means of gas recirculation
Two-pass (type “H” and “C”)
- Sub-critical conditions
- Suitable for coal, gas and oil firing
- Downflow convection backpass, which minimizes overall steam generator height, allowing maximum freedom in the choice of gas velocities to match the fuel characteristics (oil, gas or coal).
- Membrane wall construction , with ribbed tubes when required.
- S/H1, R/H1 and economiser fully drainable
- R/H temperature control by means of gas recirculation or gas biasing dampers
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