JP2012117806A - 保炎抵抗を向上させる予混合器後流及び渦補填システム及び方法 - Google Patents
保炎抵抗を向上させる予混合器後流及び渦補填システム及び方法 Download PDFInfo
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- JP2012117806A JP2012117806A JP2011258401A JP2011258401A JP2012117806A JP 2012117806 A JP2012117806 A JP 2012117806A JP 2011258401 A JP2011258401 A JP 2011258401A JP 2011258401 A JP2011258401 A JP 2011258401A JP 2012117806 A JP2012117806 A JP 2012117806A
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- Prior art keywords
- premixer
- combustion system
- vortex
- air
- trailing edge
- Prior art date
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Links
- 238000000034 method Methods 0.000 title description 13
- 238000002485 combustion reaction Methods 0.000 claims abstract description 48
- 239000000446 fuel Substances 0.000 claims abstract description 38
- 230000004044 response Effects 0.000 claims abstract description 5
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 230000007246 mechanism Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 5
- 238000007493 shaping process Methods 0.000 claims description 5
- 206010016754 Flashback Diseases 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000007800 oxidant agent Substances 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000012552 review Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000000917 particle-image velocimetry Methods 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000013589 supplement Substances 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
- F23R3/02—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
-
- 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
-
- 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
- F23D—BURNERS
- F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
- F23D2900/14—Special features of gas burners
- F23D2900/14021—Premixing burners with swirling or vortices creating means for fuel or air
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
Abstract
【解決手段】燃焼システム予混合器10は、この予混合器10を通る空気に応じて、周囲高速空気の方向を燃焼システム燃料ノズル内の後流及び渦領域の少なくとも1つへ向けて受動的に変更するように構成される、1つ以上の縦渦発生器12、14を含む。縦渦発生器12、14は、乱流構造を最小限に抑えることにより、空気/燃料の混合を促進すると共に予混合器10内の保炎及び逆火抵抗を向上させるように作用する。
【選択図】図1
Description
自身を通過する空気に応じて、周囲の高速空気の方向を受動的に変更することで、燃料ノズル内の後流及び渦領域を補填するように構成された、1つ以上の縦渦発生器を含む。
予混合器の1つ以上の部分に1つ以上の縦渦発生器を設けるステップと、
少なくとも1つの予混合器縦渦発生器に空気を通すことにより、各縦渦発生器を通過する空気の方向が、対応する燃料ノズルの後流及び渦領域内に向けて受動的に変更されるようにするステップと、を含む。
1つ以上の噴射オリフィスを有し尚且つ1つ以上の縦渦発生器を有する少なくとも1つの後縁領域を含み、これらの1つ以上の縦渦発生器は、1つ以上の噴射オリフィスを介して後縁領域内に噴射される周囲高速空気又は燃料の方向を受動的に変更することにより、この方向変更された空気又は燃料が混ざり合って後縁領域よりも下流に発生する後流及び渦領域の少なくとも1つを解消するように構成される。
Claims (10)
- 自身を通過する空気に応じて燃焼システム燃料ノズル内の後流及び渦領域の少なくとも1つに向けて、周囲高速空気の方向を受動的に変更するように構成された、1つ以上の縦渦発生器(12、14)を含む、燃焼システム予混合器(10)。
- 少なくとも1つの縦渦発生器(12)が、スワラ機構(16)の後縁部(20)に配置される、請求項1に記載の燃焼システム予混合器(10)。
- 少なくとも1つの縦渦発生器(14)が、予混合器排気ノズル(18)の後縁部、内壁部、又は外壁部に配置される、請求項1に記載の燃焼システム予混合器(10)。
- 少なくとも1つの縦渦発生器(12、14)が、空気通路の内壁部又は外壁部に関連している、請求項1に記載の燃焼システム予混合器(10)。
- 少なくとも1つの縦渦発生器(12、14)が、ノッチ構造として構成される、請求項1に記載の燃焼システム予混合器(10)。
- 少なくとも1つの縦渦発生器(12、14)が、予混合器ベーン後縁部(20)上の整形溝、鋸歯状部、又は整形ローブとして構成される、請求項1に記載の燃焼システム予混合器(10)。
- 少なくとも1つの縦渦発生器(12、14)が、該予混合器(10)を通る空気に応じて渦を発生させることにより、前記渦が該予混合器(10)を通る前記空気に伴う後流領域を受動的に補填するように、尚且つ該予混合器(10)内における保炎抵抗が高まるように構成される、請求項1に記載の燃焼システム予混合器(10)。
- 少なくとも1つの縦渦発生器(12、14)が、該予混合器(10)を通る空気に応じて渦を発生させることにより、前記渦が該予混合器(10)を通る前記空気に伴う後流領域を受動的に補填するように、尚且つ該予混合器(10)内における逆火抵抗が高まるように構成される、請求項1に記載の燃焼システム予混合器(10)。
- 1つ以上の噴射オリフィスと、1つ以上の縦渦発生器(12、14)を含む少なくとも1つの後縁領域(20)とを有する燃焼システム予混合器(10)であって、前記1つ以上の縦渦発生器(12、14)が、前記1つ以上の噴射オリフィスを介して前記後縁領域(20)内に噴射される周囲高速空気又は燃料の方向を受動的に変更することにより、前記方向変更された空気又は燃料が混ざり合って前記後縁領域(20)よりも下流に発生する後流及び渦領域の少なくとも1つを解消するように構成される、燃焼システム予混合器(10)。
- 少なくとも1つの噴射オリフィスが、前記後縁領域(20)を通る空気流と実質的に整合しない、請求項9に記載の燃焼システム予混合器(10)。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/956,187 | 2010-11-30 | ||
US12/956,187 US9435537B2 (en) | 2010-11-30 | 2010-11-30 | System and method for premixer wake and vortex filling for enhanced flame-holding resistance |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2012117806A true JP2012117806A (ja) | 2012-06-21 |
JP6154573B2 JP6154573B2 (ja) | 2017-06-28 |
Family
ID=46049923
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011258401A Expired - Fee Related JP6154573B2 (ja) | 2010-11-30 | 2011-11-28 | 保炎抵抗を向上させる予混合器後流及び渦補填システム及び方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9435537B2 (ja) |
JP (1) | JP6154573B2 (ja) |
CN (1) | CN102486311B (ja) |
DE (1) | DE102011055827A1 (ja) |
FR (1) | FR2968064B1 (ja) |
Cited By (1)
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- 2011-11-29 DE DE102011055827A patent/DE102011055827A1/de not_active Ceased
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Also Published As
Publication number | Publication date |
---|---|
US20120131923A1 (en) | 2012-05-31 |
US9435537B2 (en) | 2016-09-06 |
CN102486311A (zh) | 2012-06-06 |
FR2968064B1 (fr) | 2019-01-25 |
DE102011055827A1 (de) | 2012-05-31 |
JP6154573B2 (ja) | 2017-06-28 |
FR2968064A1 (fr) | 2012-06-01 |
CN102486311B (zh) | 2017-03-01 |
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