EP0902237A3 - Combustor swirler with twisted vanes - Google Patents

Combustor swirler with twisted vanes Download PDF

Info

Publication number
EP0902237A3
EP0902237A3 EP98116591A EP98116591A EP0902237A3 EP 0902237 A3 EP0902237 A3 EP 0902237A3 EP 98116591 A EP98116591 A EP 98116591A EP 98116591 A EP98116591 A EP 98116591A EP 0902237 A3 EP0902237 A3 EP 0902237A3
Authority
EP
European Patent Office
Prior art keywords
swirler
burning
angle
fuel
mixing
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
EP98116591A
Other languages
German (de)
French (fr)
Other versions
EP0902237A2 (en
EP0902237B1 (en
Inventor
Shigemi c/o Takasago R & D Center Mandai
Masataka c/o Takasago R & D Center Ohta
Mitsuru c/o Takasago Machinery Works Inada
Shinji c/o Takasago Machinery Works Akamatsu
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 Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of EP0902237A2 publication Critical patent/EP0902237A2/en
Publication of EP0902237A3 publication Critical patent/EP0902237A3/en
Application granted granted Critical
Publication of EP0902237B1 publication Critical patent/EP0902237B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23R—GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
    • F23R3/00—Continuous combustion chambers using liquid or gaseous fuel
    • F23R3/02—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration
    • F23R3/04—Air inlet arrangements
    • F23R3/10—Air inlet arrangements for primary air
    • F23R3/12—Air inlet arrangements for primary air inducing a vortex
    • F23R3/14—Air inlet arrangements for primary air inducing a vortex by using swirl vanes

Abstract

Pre-mixture forming swirler in gas turbine pre-mixed flame type low NOx combustor is improved so as to accelerate mixing of fuel and air and to prevent occurrence of flame stagnation and burning of component.
Three-dimensional swirler is constructed such that swirler vane (101a) is twisted from hub side thereof to tip side so that fitting angle (β) of the tip side relative to fuel nozzle (102) center axis (C) is larger than that (α) of the hub side. Thereby, while the angle (α) of the hub side is set smaller so that flame stagnation and burning of components resulted therefrom may be prevented from occurring, the angle (β) of the tip side may be selected so that shearing flow necessary for appropriate mixing of fuel (F) and air (A) is obtained, thus favorable pre-mixing is done, life deterioration due to the burning etc. is prevented and combustion efficiency is enhanced.
EP19980116591 1997-09-10 1998-09-02 Combustor comprising swirler with twisted vanes Expired - Lifetime EP0902237B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP245477/97 1997-09-10
JP24547797A JPH1183016A (en) 1997-09-10 1997-09-10 Three-dimensional swirler
JP24547797 1997-09-10

Publications (3)

Publication Number Publication Date
EP0902237A2 EP0902237A2 (en) 1999-03-17
EP0902237A3 true EP0902237A3 (en) 2000-09-20
EP0902237B1 EP0902237B1 (en) 2003-12-03

Family

ID=17134250

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980116591 Expired - Lifetime EP0902237B1 (en) 1997-09-10 1998-09-02 Combustor comprising swirler with twisted vanes

Country Status (4)

Country Link
EP (1) EP0902237B1 (en)
JP (1) JPH1183016A (en)
CA (1) CA2246219C (en)
DE (1) DE69820183T2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1242201C (en) 2001-07-10 2006-02-15 三菱重工业株式会社 Premixing nozzle, burner and gas turbine
EP1394471A1 (en) 2002-09-02 2004-03-03 Siemens Aktiengesellschaft Burner
JP4486549B2 (en) * 2005-06-06 2010-06-23 三菱重工業株式会社 Gas turbine combustor
JP4476176B2 (en) * 2005-06-06 2010-06-09 三菱重工業株式会社 Gas turbine premixed combustion burner
EP1985924A1 (en) * 2007-04-23 2008-10-29 Siemens Aktiengesellschaft Swirler
US20090139236A1 (en) * 2007-11-29 2009-06-04 General Electric Company Premixing device for enhanced flameholding and flash back resistance
US8925323B2 (en) * 2012-04-30 2015-01-06 General Electric Company Fuel/air premixing system for turbine engine
EP2728260A1 (en) * 2012-11-06 2014-05-07 Alstom Technology Ltd Axial swirler
KR101853442B1 (en) 2015-06-30 2018-04-30 두산중공업 주식회사 Gas turbine provided with a device for improved fuel flow distribution.
KR101857280B1 (en) 2015-06-30 2018-05-11 두산중공업 주식회사 Gas turbine provided with a device for improved fuel flow distribution.
KR102211258B1 (en) * 2016-07-26 2021-02-02 제이에프이 스틸 가부시키가이샤 Supporting Burner for Electric Furnace
WO2019230165A1 (en) 2018-06-01 2019-12-05 株式会社Ihi Liquid fuel injector
CN113776084A (en) * 2021-10-08 2021-12-10 浙江浙能技术研究院有限公司 Integrated low-pollution combustion chamber nozzle structure and method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1931692A (en) * 1930-02-15 1933-10-24 Elliott Co Centrifugal blowing apparatus
US2798661A (en) * 1954-03-05 1957-07-09 Westinghouse Electric Corp Gas turbine power plant apparatus
US4221558A (en) * 1978-02-21 1980-09-09 Selas Corporation Of America Burner for use with oil or gas
US4695225A (en) * 1983-08-30 1987-09-22 Bbc Brown, Boveri & Company, Limited Axial swirl body for generating rotary flows
WO1989006307A1 (en) * 1987-12-28 1989-07-13 Sundstrand Corporation Gas turbine with forced vortex fuel injection
EP0397046A2 (en) * 1989-05-11 1990-11-14 Mitsubishi Jukogyo Kabushiki Kaisha Burner apparatus
US5186607A (en) * 1990-12-03 1993-02-16 Industrial Technology Research Institute Swirl generator with axial vanes

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1931692A (en) * 1930-02-15 1933-10-24 Elliott Co Centrifugal blowing apparatus
US2798661A (en) * 1954-03-05 1957-07-09 Westinghouse Electric Corp Gas turbine power plant apparatus
US4221558A (en) * 1978-02-21 1980-09-09 Selas Corporation Of America Burner for use with oil or gas
US4695225A (en) * 1983-08-30 1987-09-22 Bbc Brown, Boveri & Company, Limited Axial swirl body for generating rotary flows
WO1989006307A1 (en) * 1987-12-28 1989-07-13 Sundstrand Corporation Gas turbine with forced vortex fuel injection
EP0397046A2 (en) * 1989-05-11 1990-11-14 Mitsubishi Jukogyo Kabushiki Kaisha Burner apparatus
US5186607A (en) * 1990-12-03 1993-02-16 Industrial Technology Research Institute Swirl generator with axial vanes

Also Published As

Publication number Publication date
DE69820183T2 (en) 2004-08-26
CA2246219C (en) 2002-11-19
EP0902237A2 (en) 1999-03-17
CA2246219A1 (en) 1999-03-10
DE69820183D1 (en) 2004-01-15
EP0902237B1 (en) 2003-12-03
JPH1183016A (en) 1999-03-26

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