JPS5634005A - Combustion device for low nox - Google Patents

Combustion device for low nox

Info

Publication number
JPS5634005A
JPS5634005A JP10729179A JP10729179A JPS5634005A JP S5634005 A JPS5634005 A JP S5634005A JP 10729179 A JP10729179 A JP 10729179A JP 10729179 A JP10729179 A JP 10729179A JP S5634005 A JPS5634005 A JP S5634005A
Authority
JP
Japan
Prior art keywords
combustion
flames
burners
main
afterburners
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP10729179A
Other languages
Japanese (ja)
Other versions
JPH0122522B2 (en
Inventor
Akira Baba
Manabu Orimoto
Kunio Okiura
Toshiharu Kikuchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Power Ltd
Original Assignee
Babcock Hitachi KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Babcock Hitachi KK filed Critical Babcock Hitachi KK
Priority to JP10729179A priority Critical patent/JPS5634005A/en
Publication of JPS5634005A publication Critical patent/JPS5634005A/en
Publication of JPH0122522B2 publication Critical patent/JPH0122522B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To reduce the quantity of NOx in exhaust gas without providing any special device outside the combustion device such as a bolier by completely stabilizing flames which become unstable due to the combustion in the reducing atmosphere.
CONSTITUTION: When the combustion is made in the main burners 1 and 1a under the condition of the presence of somewhat excessive fuel, the partial pressure of oxygen in the flames given by the main burners 1 and 1a and in the neighborhood of flames lowers and the generation of NOx is held down. Moreover, in auxiliary burners 2 and 2a arranged in the neighborhood of the main burners 1 and 1a, the combustion is made with F/A value of about 1.3W1.6. Next, so as to maintain the stability of these flames and to burn completely unburnt carbon, etc. left behind the above combustion, afterburners 3 are employed. The capacity of these afterburners 3 is set to be about 2/10W3/10 of the capacity of the main burmers 1 and 1a, and the combustion is made therein under the condition of the presence of the excessive air.
COPYRIGHT: (C)1981,JPO&Japio
JP10729179A 1979-08-24 1979-08-24 Combustion device for low nox Granted JPS5634005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10729179A JPS5634005A (en) 1979-08-24 1979-08-24 Combustion device for low nox

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10729179A JPS5634005A (en) 1979-08-24 1979-08-24 Combustion device for low nox

Publications (2)

Publication Number Publication Date
JPS5634005A true JPS5634005A (en) 1981-04-06
JPH0122522B2 JPH0122522B2 (en) 1989-04-26

Family

ID=14455366

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10729179A Granted JPS5634005A (en) 1979-08-24 1979-08-24 Combustion device for low nox

Country Status (1)

Country Link
JP (1) JPS5634005A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59196964A (en) * 1983-04-21 1984-11-08 Hitachi Zosen Corp Combustion under supplying different kinds of fuels in two steps
JPH02272207A (en) * 1988-09-10 1990-11-07 Kansai Electric Power Co Inc:The Water tube boiler and burning method therefor
JPH0321603U (en) * 1989-06-30 1991-03-05

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5270432A (en) * 1975-12-08 1977-06-11 Hitachi Zosen Corp Method of two-stage burning for suppressing generation of nitrogen oxi des
JPS52107634A (en) * 1976-03-06 1977-09-09 Mitsubishi Heavy Ind Ltd Low-nox combustion method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5270432A (en) * 1975-12-08 1977-06-11 Hitachi Zosen Corp Method of two-stage burning for suppressing generation of nitrogen oxi des
JPS52107634A (en) * 1976-03-06 1977-09-09 Mitsubishi Heavy Ind Ltd Low-nox combustion method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59196964A (en) * 1983-04-21 1984-11-08 Hitachi Zosen Corp Combustion under supplying different kinds of fuels in two steps
JPH0128845B2 (en) * 1983-04-21 1989-06-06 Hitachi Shipbuilding Eng Co
JPH02272207A (en) * 1988-09-10 1990-11-07 Kansai Electric Power Co Inc:The Water tube boiler and burning method therefor
JPH0470523B2 (en) * 1988-09-10 1992-11-11 Kansai Denryoku Kk
JPH0321603U (en) * 1989-06-30 1991-03-05
JPH0711283Y2 (en) * 1989-06-30 1995-03-15 三浦工業株式会社 Square multi-tube once-through boiler

Also Published As

Publication number Publication date
JPH0122522B2 (en) 1989-04-26

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