JP6310635B2 - 空力的に改善された、放出を少なくするための予混合器のためのシステム - Google Patents
空力的に改善された、放出を少なくするための予混合器のためのシステム Download PDFInfo
- Publication number
- JP6310635B2 JP6310635B2 JP2012268912A JP2012268912A JP6310635B2 JP 6310635 B2 JP6310635 B2 JP 6310635B2 JP 2012268912 A JP2012268912 A JP 2012268912A JP 2012268912 A JP2012268912 A JP 2012268912A JP 6310635 B2 JP6310635 B2 JP 6310635B2
- Authority
- JP
- Japan
- Prior art keywords
- ring
- premixer
- combustor
- plane
- mixer
- 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.)
- Expired - Fee Related
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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
- F23R3/286—Continuous combustion chambers using liquid or gaseous fuel characterised by the fuel supply having fuel-air premixing devices
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Description
一般的な参考として、航空機ガスタービンエンジン段燃焼システムは、都市の光化学スモッグの問題に寄与している、とりわけ空港の近傍における窒素酸化物(NOx)、不燃炭化水素(HC)および一酸化炭素(CO)などの望ましくない燃焼生成物成分の生成を制限するために開発された。また、ガスタービンエンジンは、燃料効率が高くなり、かつ、運転コストが安価になるように設計されている。燃焼器の設計に影響を及ぼしている他の要因は、ガスタービンエンジンを効率的に、かつ、低コストで運転する使用者の要望、つまり、燃料消費を少なくし、その一方で、それと同時にエンジン出力を維持し、さらにはエンジン出力を大きくする必要性である。したがって航空機ガスタービンエンジン燃焼システムに対する重要な設計基準には、様々なエンジン運転条件の下で高い熱効率を提供するための高い燃焼温度の準備が含まれている。さらに、微粒子の放出、望ましくないガスの放出、また、光化学スモッグの形成の前兆である燃焼生成物の放出に寄与する望ましくない燃焼条件を最小化することも重要である。
11 燃料噴射器
12 燃料ノズルアセンブリ
14 圧縮機吐出空気
15 バイパスファン
16 燃焼器
18 燃焼ゾーン
20 半径方向に外側の環状ライナ(外部ライナ)
22 半径方向に内側の環状ライナ(内部ライナ)
23 圧縮機吐出空気の第1の部分
24 圧縮機吐出空気の第2の部分
25 圧縮機吐出空気の第3の部分
26 環状燃焼器外筒
30 フランジ
32 中空ステム
34 環状ドーム
36 燃焼ゾーンの上流側末端
37 弁ハウジング
40 混合器アセンブリ
52 エンジン中心線
54 環状パイロット入口
57 二重オリフィスパイロット燃料噴射器チップ
58 一次パイロット燃料ノズル
59 二次パイロット燃料ノズル
60 燃焼ガス
61 主燃料ノズル
62 ノズルスロット
65 燃料‐空気混合物
69 高圧圧縮機吐出出口
70 点火器
72 第1段タービンノズル
74 ノズル羽根
99 パイロットハウジング
100 環状二次出口
102 パイロット混合器
103 センタボディ
104 予混合器
104 主混合器
105、228 チャンバ(混合器空胴、チャンバの長さ)
120 パイロット混合器の中心線軸
200 第1のリング
202 第1の外側の点
204 第1の内側の点
205 第1の内部リングプラットフォーム
206 第1の内部肩
208 フット(第1の外部肩)
210 放射羽根
211 入口半径
212 円錐羽根
214 後方放射羽根
216 前方放射羽根
220 第2のリング
222 第2の外側の点
224 第2の内側の点
226 第2の内部肩
227 後部リップパージ流開口
230 パージスロット
232 半径角
234 円周角
236 平面
240 スプリッタ
242 波形
300 低圧圧縮機
400 高圧圧縮機
402 加圧圧縮機吐出空気
500 高圧タービン
600 低圧タービン
700 傾斜角
Claims (5)
- 空力的に改善された、放出を少なくするための予混合器を有する燃焼器であって、
概ね円筒状の形態の予混合器(104)であって、第1のリング(200)、第2のリング(220)と、1つまたは複数の放射羽根(210、214、216)との間の物理空間における関係によって画定される予混合器を備え、
前記第1および第2のリングが、それらの互いに対向している表面に沿ったすべての点で互いに概して等距離に位置し、前記放射羽根が前記第1のリングを前記第2のリングに接続し、
前記第1のリングが、主として単一の平面内に位置していると見なされ、前記第2のリングが占有する平面が、前記第1のリングの前記平面に対して概ね平行にならないように物理空間内でオフセットしており、
前記燃焼器は、中心軸線(120)を有するパイロット混合器(102)を更に備え、
前記第1のリングが前記予混合器内を流れる流体の上流側に位置し、前記第2のリングが前記予混合器内を流れる前記流体の下流側に位置し、
前記第1のリングの前記平面が、前記パイロット混合器の半径方向に対して傾斜しており、
前記第1のリング内に形成された1つまたは複数のパージスロット(230)をさらに備え、
前記1つまたは複数のパージスロット(230)が、前記パイロット混合器の半径方向に対して0度より大きく45度未満の範囲内で傾斜する、燃焼器。 - 前記第1のリングの前記平面が、前記半径方向外側に向けて前記第2のリングの前記平面から離れるように傾斜する、請求項1記載の燃焼器。
- 前記第2のリングが第2の内部肩(226)をさらに備え、該第2のリングが、前記前記中心軸線に沿った断面で、該第2のリングの前記平面に対しほぼ直角に該第2の内肩部から該予混合器内を流れる前記流体の下流側に向けて延びる部分を有する、請求項1又は2記載の燃焼器。
- 前記第2のリング上に形成され、かつ、配置される1つまたは複数の後部リップパージ流開口(227)をさらに備える、請求項3記載の燃焼器。
- 前記放射羽根が、前記中心軸線に沿って隣り合う第1及び第2の放射羽根(214、216)からなり、該第1及び第2の放射羽根(214、216)間に、波形を有するスプリッタ(240)が設けられている、請求項1乃至4のいずれか1項に記載の燃焼器。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161569904P | 2011-12-13 | 2011-12-13 | |
US61/569,904 | 2011-12-13 | ||
US13/657,924 US11015808B2 (en) | 2011-12-13 | 2012-10-23 | Aerodynamically enhanced premixer with purge slots for reduced emissions |
US13/657,924 | 2012-10-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013124856A JP2013124856A (ja) | 2013-06-24 |
JP6310635B2 true JP6310635B2 (ja) | 2018-04-11 |
Family
ID=47561091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2012268912A Expired - Fee Related JP6310635B2 (ja) | 2011-12-13 | 2012-12-10 | 空力的に改善された、放出を少なくするための予混合器のためのシステム |
Country Status (6)
Country | Link |
---|---|
US (3) | US11015808B2 (ja) |
EP (1) | EP2604927B1 (ja) |
JP (1) | JP6310635B2 (ja) |
CN (1) | CN103162312B (ja) |
BR (1) | BR102012031676A2 (ja) |
CA (1) | CA2798309A1 (ja) |
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2012
- 2012-10-23 US US13/657,924 patent/US11015808B2/en active Active
- 2012-12-06 CA CA2798309A patent/CA2798309A1/en not_active Abandoned
- 2012-12-10 JP JP2012268912A patent/JP6310635B2/ja not_active Expired - Fee Related
- 2012-12-10 EP EP12196367.2A patent/EP2604927B1/en active Active
- 2012-12-12 BR BR102012031676-5A patent/BR102012031676A2/pt not_active Application Discontinuation
- 2012-12-13 CN CN201210536971.9A patent/CN103162312B/zh active Active
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2021
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US20130145765A1 (en) | 2013-06-13 |
CN103162312B (zh) | 2016-08-03 |
US11421885B2 (en) | 2022-08-23 |
BR102012031676A2 (pt) | 2015-01-20 |
JP2013124856A (ja) | 2013-06-24 |
US20210231307A1 (en) | 2021-07-29 |
US20210285642A1 (en) | 2021-09-16 |
US11421884B2 (en) | 2022-08-23 |
CA2798309A1 (en) | 2013-06-13 |
US11015808B2 (en) | 2021-05-25 |
EP2604927A3 (en) | 2013-07-31 |
EP2604927A2 (en) | 2013-06-19 |
CN103162312A (zh) | 2013-06-19 |
EP2604927B1 (en) | 2014-10-29 |
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