Title:
BURNER FOR GAS FUEL
Document Type and Number:
Japanese Patent JP3272447
Kind Code:
B2
Abstract:
PURPOSE: To prevent a back-fire as well as a combustion vibration from being generated at an outlet port of a secondary air cylinder in a burner for a boiler using gas fuel.
CONSTITUTION: A seal air cylinder 101 is arranged from an inlet port of a flame mixture gas nozzle 15 within a secondary air cylinder 04 to an outlet port of the secondary air cylinder 04. A part of secondary air 23 is fed to a surface of a burner throat refractory material 10 as seal air 104 so as to prevent lean mixture gas pre-mixed gas 26 from directly contacted with the surface of the burner throat refractory material 10 of high temperature. A seal air flow rate adjusting damper 102 is arranged at the inlet port of the seal air cylinder 10.
Inventors:
Kimiyo Tokuda
Akiyasu Okamoto
Masaharu Ooguri
Akiyasu Okamoto
Masaharu Ooguri
Application Number:
JP4911393A
Publication Date:
April 08, 2002
Filing Date:
March 10, 1993
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
Choryo Engineering Co., Ltd.
Choryo Engineering Co., Ltd.
International Classes:
F23D14/22; F23D17/00; (IPC1-7): F23D17/00; F23D14/22
Domestic Patent References:
| JP52131229A | ||||
| JP574608U | ||||
| JP537842U | ||||
| JP61121321U |
Attorney, Agent or Firm:
Akasaka Saka (1 person outside)