Title:
BOILER DEVICE
Document Type and Number:
Japanese Patent JP2002267154
Kind Code:
A
Abstract:
To reduce unburnt matters in ash and achieve a highly efficient operation by more raising the temperature of combustion air of a boiler.
A boiler device having a heater 6 relatively little in temperature change due to heat absorption is provided with an air duct evaporator 9 connected in parallel with the heater 6. The temperature of the combustion air supplied from an air preheater 2 is raised through the air duct evaporator 9 to supply the combustion air to a boiler wind box 3. The air duct evaporator 9 has its inlet/outlet connected to the heater 6 by communicating pipes 8. Flow rate is adjusted by valves 10 disposed in the communicating pipes.
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Inventors:
MARUISHI KAZUYUKI
Application Number:
JP2001062186A
Publication Date:
September 18, 2002
Filing Date:
March 06, 2001
Export Citation:
Assignee:
BABCOCK HITACHI KK
International Classes:
F23L15/04; F22B31/08; (IPC1-7): F23L15/04; F22B31/08
Attorney, Agent or Firm:
Kenjiro Take