JPS57169505A - Combustion with low nox in boiler - Google Patents

Combustion with low nox in boiler

Info

Publication number
JPS57169505A
JPS57169505A JP5419981A JP5419981A JPS57169505A JP S57169505 A JPS57169505 A JP S57169505A JP 5419981 A JP5419981 A JP 5419981A JP 5419981 A JP5419981 A JP 5419981A JP S57169505 A JPS57169505 A JP S57169505A
Authority
JP
Japan
Prior art keywords
combustion
air
combustion flame
boiler
flame
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.)
Pending
Application number
JP5419981A
Other languages
Japanese (ja)
Inventor
Yoshito Nakamura
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.)
Kawasaki Heavy Industries Ltd
Kawasaki Motors Ltd
Original Assignee
Kawasaki Heavy Industries Ltd
Kawasaki Jukogyo 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 Kawasaki Heavy Industries Ltd, Kawasaki Jukogyo KK filed Critical Kawasaki Heavy Industries Ltd
Priority to JP5419981A priority Critical patent/JPS57169505A/en
Publication of JPS57169505A publication Critical patent/JPS57169505A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C6/00—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion
    • F23C6/04—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection
    • F23C6/045—Combustion apparatus characterised by the combination of two or more combustion chambers or combustion zones, e.g. for staged combustion in series connection with staged combustion in a single enclosure

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)

Abstract

PURPOSE:To perform an efficient reduction of a content of NOx by a method wherein the air subsequent to the secondary step in multi-stage combustion boiler is introduced into the combustion flame as a plurality of flows directed thereinto and then a swirling flow of air is generated in the cross sectional part of the combustion flame. CONSTITUTION:A multi-stage combustion boiler is provided with a barner 1 at the front surface of a combustion chamber 2, then a central part of the burner 1 is provided with a burner gun 3. Then, the combustion air is distributed from a blower 13 into the primary and secondary airs 5 and 6, each of them is fed to the combustion chamber 2, respectively. For example, the secondary air 6 is divided into upper and lower two flows, and they are fed into the combustion flame from the circumference of the secondary combustion area 4b of the combustion flame injected from the burner gun 3 so as to generate a swirling flow in the cross section of the combustion flame. Thereby, the feed of the secondary air 6 is made uniformly, and the secondary air 6 is sufficiently fed into the incomplete combustion zone of the combustion flame so as to decrease a content of NOx.
JP5419981A 1981-04-09 1981-04-09 Combustion with low nox in boiler Pending JPS57169505A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5419981A JPS57169505A (en) 1981-04-09 1981-04-09 Combustion with low nox in boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5419981A JPS57169505A (en) 1981-04-09 1981-04-09 Combustion with low nox in boiler

Publications (1)

Publication Number Publication Date
JPS57169505A true JPS57169505A (en) 1982-10-19

Family

ID=12963863

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5419981A Pending JPS57169505A (en) 1981-04-09 1981-04-09 Combustion with low nox in boiler

Country Status (1)

Country Link
JP (1) JPS57169505A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2701540A1 (en) * 1993-02-16 1994-08-19 Babcock Entreprise Combustion chamber with burner on face and system for reducing the emissions of pollutant bodies, such as oxides of nitrogen
JP2010190500A (en) * 2009-02-19 2010-09-02 Mitsubishi Heavy Industries Environment & Chemical Engineering Co Ltd Carbide combustion device and method therefor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS515636B1 (en) * 1971-04-16 1976-02-21
JPS5253101A (en) * 1975-10-27 1977-04-28 Kawasaki Heavy Ind Ltd Boiler
JPS53141931A (en) * 1977-05-18 1978-12-11 Nippon Steel Corp Plural-rotation burner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS515636B1 (en) * 1971-04-16 1976-02-21
JPS5253101A (en) * 1975-10-27 1977-04-28 Kawasaki Heavy Ind Ltd Boiler
JPS53141931A (en) * 1977-05-18 1978-12-11 Nippon Steel Corp Plural-rotation burner

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2701540A1 (en) * 1993-02-16 1994-08-19 Babcock Entreprise Combustion chamber with burner on face and system for reducing the emissions of pollutant bodies, such as oxides of nitrogen
JP2010190500A (en) * 2009-02-19 2010-09-02 Mitsubishi Heavy Industries Environment & Chemical Engineering Co Ltd Carbide combustion device and method therefor

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