Title:
METHOD FOR BURNING FUEL IN EXHAUST GAS BOILER
Document Type and Number:
Japanese Patent JP2534426
Kind Code:
B2
Abstract:
PURPOSE: To control the flame length and suppress the emission of NOx by using the exhaust gas containing oxygen as a source for oxygen for the combustion of fuel.
CONSTITUTION: To the fuel 26 injected into a precombustion chamber 21 from a burner gun 23 the total amount of the oxygen contained in the exhaust gas 09 supplied to a primary exhaust gas supply hole 34 and a secondary exhaust gas supply hole 34b is made to have a proportion in the range of 0.4 to 0.8 in terms of air ratio. The total amount of the oxygen contained in the exhaust gas 09 supplied to the primary exhaust gas supply hole 34a, the secondary exhaust gas supply hole 34b, and a tertiary exhaust gas supply hole 34c is made to be less than the theoretical amount of oxygen required for the combustion of the fuel 24. The combustion is made to be complete by the oxygen in the air supplied to a secondary air supply hole 36b. This method makes it possible to control the flame length and suppress the emission of NOx.
Inventors:
SAKAI MASAYASU
TOKUDA KIMYO
OOGURI MASAHARU
MURAKAMI NOBUAKI
KOBAYASHI TSUNEO
TOKUDA KIMYO
OOGURI MASAHARU
MURAKAMI NOBUAKI
KOBAYASHI TSUNEO
Application Number:
JP22281992A
Publication Date:
September 18, 1996
Filing Date:
August 21, 1992
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD
International Classes:
F22B1/18; F22B31/00; F23C99/00; (IPC1-7): F23C11/00; F23C11/00
Domestic Patent References:
| JP5896905A | ||||
| JP5182434A | ||||
| JP6043832U |
Attorney, Agent or Firm:
Akasaka Saka (2 people outside)