JP5513756B2 - クラウン混合孔を備えた燃焼器キャップ - Google Patents
クラウン混合孔を備えた燃焼器キャップ Download PDFInfo
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- JP5513756B2 JP5513756B2 JP2009050176A JP2009050176A JP5513756B2 JP 5513756 B2 JP5513756 B2 JP 5513756B2 JP 2009050176 A JP2009050176 A JP 2009050176A JP 2009050176 A JP2009050176 A JP 2009050176A JP 5513756 B2 JP5513756 B2 JP 5513756B2
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- Prior art keywords
- cap
- fuel
- fuel nozzle
- combustor liner
- combustor
- 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.)
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- 239000000446 fuel Substances 0.000 claims description 68
- 238000002485 combustion reaction Methods 0.000 description 28
- 238000009792 diffusion process Methods 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000007789 gas Substances 0.000 description 6
- 238000011144 upstream manufacturing Methods 0.000 description 5
- 230000009467 reduction Effects 0.000 description 4
- 239000003085 diluting agent Substances 0.000 description 3
- 239000012897 dilution medium Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000002609 medium Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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
- F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
- F23R3/34—Feeding into different combustion zones
- F23R3/346—Feeding into different combustion zones for staged combustion
-
- 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
-
- 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
- F23R3/28—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply
-
- 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
- F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
- F23C2900/06042—Annular arrangement of burners in a furnace, e.g. in a gas turbine, operated in alternate lean-rich mode
-
- 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
- F23R2900/00—Special features of, or arrangements for continuous combustion chambers; Combustion processes therefor
- F23R2900/00002—Gas turbine combustors adapted for fuels having low heating value [LHV]
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Nozzles For Spraying Of Liquid Fuel (AREA)
Description
NOx及びCOの低減は、燃焼器のコア領域における不十分な酸素濃度によって制限される。従って、従来では、燃焼器は、これ迄のエミッション目標を満たすのに必要な多量の希釈媒体流量を操作しながら安定作動を達成するために、1(理論空燃比)近傍で作動させていた。この方式では、より挑戦的なエミッション標的を達成することは著しく困難であった。従って、本発明によると、新規の中央本体構造内において空気を分布させ直して、これ迄経験してきたエミッション及び運転性限界を解決している。従って、本発明は、キャップ中央本体クラウンに配向混合孔を付加することにより燃焼ライナ領域における燃料−空気混合を促進することによって、より低いエミッション及びより大きいエミッション運転窓を達成することができるマルチノズル拡散火焔式燃焼器を提供する。
14 ライナ
16 燃料ノズル
18 外壁
20 キャップ中央本体
112 キャップ
114 ライナ
116 ポート
120 キャップ中央本体
Claims (9)
- 燃焼器ライナキャップ(112)であって、
キャップ中央本体部分(120)と、
前記キャップ中央本体部分の周辺に形成された燃料ノズル部分と、を含み、
複数の燃料ノズルポート(116)が、前記燃料ノズル部分を貫通して形成され、
複数の空気ジェット孔(114)が、前記キャップ中央本体部分(120)を貫通して形成され、
各前記空気ジェット孔が、該ライナキャップの半径に沿ってそれぞれの前記燃料ノズルポートと整列しており、
前記キャップ中央本体(120)の周辺に形成された6個の燃料ノズルポート(116)と前記キャップ中央本体(120)の周りに形成された6個の空気ジェット孔(114)とが設けられ、
前記燃料ノズルポート及び空気ジェット孔が、該ライナキャップの共通半径上に中心を有しかつそれぞれの前記空気ジェット孔が、該キャップの周りで互いに60度離れて配置されるようになっており、
前記燃焼器ライナキャップ(112)を通る燃料の流れは、前記燃料ノズルポート(116)の流れに限定されている、
燃焼器ライナキャップ。 - 各前記空気ジェット孔(114)が、約1.27〜3.81cmの直径を有する、請求項1に記載の燃焼器ライナキャップ。
- 各前記空気ジェット孔(114)が、それを通って流れる空気がそれぞれの前記燃料ノズルポート(116)からの燃料と衝突し、それによって燃料及び空気噴流の衝突が、それに対して該キャップを取付けた燃焼器ライナのコア領域において混合を促進するようになる、請求項1に記載の燃焼器ライナキャップ。
- 前記空気ジェット孔(114)を通る空気流が、それぞれの前記燃料ノズルポート(116)からの燃料噴流に対して交差している、請求項3に記載の燃焼器ライナキャップ。
- 前記空気ジェット孔(114)を通る空気流が、それぞれの前記燃料ノズルポート(116)からの燃料噴流に対して約35度の角度で交差している、請求項4に記載の燃焼器ライナキャップ。
- 前記空気ジェット孔(114)が、前記キャップ中央本体(120)の周囲に均等に間隔を置いて配置される、請求項1に記載の燃焼器ライナキャップ。
- 各前記燃料ノズルポート(116)が、約5.08〜10.16cmの直径を有する、請求項1に記載の燃焼器ライナキャップ。
- 前記燃料ノズルポート(116)が、該燃料ノズルポートの中心が約26.67cmの直径を有する仮想円上で整列するように、前記燃料ノズル部分の周りに配置される、請求項1に記載の燃焼器ライナキャップ。
- 燃焼器ライナ(114)と、
前記燃焼器ライナ(114)の1つの軸方向端部に取付けられた、請求項1に記載したような燃焼器ライナキャップ(112)と、
を含む、燃焼器。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/073,407 US20090223227A1 (en) | 2008-03-05 | 2008-03-05 | Combustion cap with crown mixing holes |
US12/073,407 | 2008-03-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009210260A JP2009210260A (ja) | 2009-09-17 |
JP5513756B2 true JP5513756B2 (ja) | 2014-06-04 |
Family
ID=40936474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009050176A Active JP5513756B2 (ja) | 2008-03-05 | 2009-03-04 | クラウン混合孔を備えた燃焼器キャップ |
Country Status (5)
Country | Link |
---|---|
US (1) | US20090223227A1 (ja) |
JP (1) | JP5513756B2 (ja) |
CN (1) | CN101526227B (ja) |
CH (1) | CH698634B1 (ja) |
DE (1) | DE102009003572A1 (ja) |
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DE10217913B4 (de) * | 2002-04-23 | 2004-10-07 | WS Wärmeprozesstechnik GmbH | Gasturbine mit Brennkammer zur flammenlosen Oxidation |
US6672073B2 (en) * | 2002-05-22 | 2004-01-06 | Siemens Westinghouse Power Corporation | System and method for supporting fuel nozzles in a gas turbine combustor utilizing a support plate |
US6840048B2 (en) * | 2002-09-26 | 2005-01-11 | General Electric Company | Dynamically uncoupled can combustor |
US7185494B2 (en) * | 2004-04-12 | 2007-03-06 | General Electric Company | Reduced center burner in multi-burner combustor and method for operating the combustor |
US20060130486A1 (en) * | 2004-12-17 | 2006-06-22 | Danis Allen M | Method and apparatus for assembling gas turbine engine combustors |
-
2008
- 2008-03-05 US US12/073,407 patent/US20090223227A1/en not_active Abandoned
-
2009
- 2009-03-02 CH CH00309/09A patent/CH698634B1/de not_active IP Right Cessation
- 2009-03-04 JP JP2009050176A patent/JP5513756B2/ja active Active
- 2009-03-05 DE DE102009003572A patent/DE102009003572A1/de not_active Ceased
- 2009-03-05 CN CN2009101266980A patent/CN101526227B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
CH698634B1 (de) | 2013-05-15 |
DE102009003572A1 (de) | 2009-09-10 |
CN101526227B (zh) | 2013-01-16 |
CN101526227A (zh) | 2009-09-09 |
US20090223227A1 (en) | 2009-09-10 |
JP2009210260A (ja) | 2009-09-17 |
CH698634A2 (de) | 2009-09-15 |
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