Title:
BURNER, COMBUSTION APPARATUS, AND CONTROL METHOD OF BOILER AND THE BURNER
Document Type and Number:
Japanese Patent JP2017003216
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a burner, a combustion apparatus, and a control method of a boiler and the burner capable of stabilizing ignition and frame holding in an internal flame holding area with simple configuration.SOLUTION: A burner comprises: an inner gas nozzle extending along an axis line while surrounding the axis line and capable of supplying oxygen-containing gas for inner combustion to a furnace; a fuel supply nozzle surrounding the inner gas nozzle when viewed in a direction along the axis line and capable of supplying fluid mixture of solid powder fuel and gas for transportation to the furnace; an outer gas nozzle surrounding the fuel supply nozzle when viewed in a direction along the axis line and capable of supplying oxygen-containing gas for outer combustion to the furnace; and a flow speed ratio adjusting mechanism adjustable the relative flow speed ratio of the jet velocity of the oxygen-containing gas for inner combustion and the jet velocity of the oxygen-containing gas for outer combustion, in which the burner is configured so that flame holding areas are respectively formed downstream of an outlet of the fuel supply nozzle and on the jet flow side of the oxygen-containing gas for inner combustion of the fluid mixture jet flow; and on the jet flow side of the oxygen-containing gas for outer combustion.SELECTED DRAWING: Figure 2
Inventors:
KIYAMA KENJI
ICHINOSE TOSHIMITSU
SHIMOGOORI MIKI
MINE SATOHIKO
YAMAMOTO KENJI
TANAKA RYUICHIRO
BABA AKIRA
KURAMASU KIMIHARU
FUJIMURA KOTARO
MATSUMOTO KEIGO
ICHINOSE TOSHIMITSU
SHIMOGOORI MIKI
MINE SATOHIKO
YAMAMOTO KENJI
TANAKA RYUICHIRO
BABA AKIRA
KURAMASU KIMIHARU
FUJIMURA KOTARO
MATSUMOTO KEIGO
Application Number:
JP2015119311A
Publication Date:
January 05, 2017
Filing Date:
June 12, 2015
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS
International Classes:
F23D1/00
Domestic Patent References:
| JPH11148610A | 1999-06-02 | |||
| JPS6071810U | 1985-05-21 | |||
| JPH09250709A | 1997-09-22 | |||
| JPS588908A | 1983-01-19 | |||
| JP2002048306A | 2002-02-15 | |||
| JPS59210205A | 1984-11-28 | |||
| JP2010038519A | 2010-02-18 | |||
| JP2011252625A | 2011-12-15 | |||
| JP2002228109A | 2002-08-14 | |||
| JP2013019666A | 2013-01-31 | |||
| JP2014122743A | 2014-07-03 | |||
| JPH09280212A | 1997-10-28 |
Foreign References:
| WO2009130857A1 | 2009-10-29 |
Attorney, Agent or Firm:
Seishin ip patent business corporation
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