CN107965769A - A kind of high-performance flexible flameholder - Google Patents
A kind of high-performance flexible flameholder Download PDFInfo
- Publication number
- CN107965769A CN107965769A CN201711177913.0A CN201711177913A CN107965769A CN 107965769 A CN107965769 A CN 107965769A CN 201711177913 A CN201711177913 A CN 201711177913A CN 107965769 A CN107965769 A CN 107965769A
- Authority
- CN
- China
- Prior art keywords
- flameholder
- inner ring
- expansion joint
- performance flexible
- trailing edge
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
- F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The present invention discloses a kind of high-performance flexible flameholder, including inner ring, outer shroud and flameholder；Inner ring circularizes passage with outer ring；Flameholder is arranged in circular passage；Expansion joint is arranged with flameholder inside groove trailing edge；Flameholder and inner ring and outer shroud are fixed together by rivet interlacement expansion joint.Technical scheme improves flame stabilization ability and passes flame ability, strengthens the ability of flameholder inside groove trailing edge resistance to deformation crackle.
Description
Technical field
The present invention relates to aeroengine thrust augmentation flame combustion chamber stabilizer technical field, more particularly to a kind of high-performance are soft
Property flameholder.
Background technology
Aero-engine course of work air velocity is high, and air-flow is after turbine, formation high speed swirling eddy, gas after turbine
Dynamic flow field check.After after-burner is located at turbine, in high-speed flow, flameholder is the weight for maintaining flame stabilization burning
Want component.Aeroengine thrust augmentation combustion chamber generally uses traditional V-groove structure at present, and traditional structure flame holding is poor,
Resistance to deformation crack performance is weak, influences engine Afterburning condition steady operation.
The content of the invention
In order to solve the above technical problems, the object of the present invention is to provide a kind of high-performance flexible flameholder, specific skill
Art scheme is as follows：
A kind of high-performance flexible flameholder, including inner ring, outer shroud and flameholder；
The inner ring circularizes passage with outer ring；
The flameholder is arranged in circular passage；
Expansion joint is arranged with the flameholder inside groove trailing edge；
Flameholder and inner ring and outer shroud are fixed together by rivet interlacement expansion joint.
A kind of high-performance flexible flameholder, its preferred solution are equipped with 36 for the expansion joint, uniformly divide
Cloth is on flameholder trailing edge.
A kind of high-performance flexible flameholder, its preferred solution are that the outer ring size is 650mm, inner ring ruler
Very little 600mm.
A kind of high-performance flexible flameholder, its preferred solution is the expansion joint and flameholder is punching
It is molded.
A kind of operation principle of high-performance flexible flameholder：Inner ring and outer shroud composition circular passage, flameholder
In circular passage, air-flow flows through flameholder head, air inflow increase, and inside groove circumferential weld average exit speed reduces, gas
Flow stability to improve, gas mixture is stablizing tank rear reflux low regime efficient burning.Flameholder trailing edge design 36
A symmetrical expansion joint of waveform, after making it heated can Free Transform, flameholder inside groove trailing edge can be avoided to produce moderate finite deformation
And crackle.
Beneficial effects of the present invention：It is low that technical scheme solves traditional V-groove flameholder stability, resists
The weak problem of anti-thread breakage ability is deformed, after-burner efficiency of combustion is improved, reduces test run oil consumption and Setup Cost, from design structure
Stablize burning in upper guarantee aeroengine thrust augmentation combustion chamber.Organization plan of the present invention is novel, and aerodynamic stability is high, resistance to deformation crackle
Ability is strong, can improve test run qualification rate using the aeroengine thrust augmentation combustion chamber of the organization plan, save test run adjustment link
Cost.Aeroengine thrust augmentation combustion chamber can be widely applied, is had a extensive future, there is huge economic benefit and society's effect
Benefit.
Brief description of the drawings
Fig. 1 is a kind of high-performance flexible flameholder structure diagram；
Fig. 2 is the flameholder inside groove trailing edge structures schematic diagram equipped with expansion joint；
Fig. 3 is a kind of high-performance flexible flameholder process chart.
In figure, 1- inner ring, 2- outer shrouds, 3- flameholders, 4- expansion joints, 5- flameholder inside grooves trailing edge, 6- rivets.
Embodiment
A kind of high-performance flexible flameholder as shown in Figure 1, including inner ring 1, outer shroud 2 and flameholder 3；
The inner ring 1 forms circular passage with outer shroud 2；
The flameholder 3 is arranged in circular passage；
Expansion joint 4 is arranged with the flameholder inside groove trailing edge 5；
Expansion joint 4 is connected by rivet 6 flameholder 3 and inner ring 1 and outer shroud 2 are fixed together.
The expansion joint 4 is equipped with 36, is evenly distributed on flameholder inside groove trailing edge 5.
2 size of outer shroud is 650mm, 1 size 600mm of inner ring.
The expansion joint 4 and flameholder 3 are punch forming.
A kind of operation principle of high-performance flexible flameholder：Inner ring 1 forms circular passage, flame stabilization with outer shroud 2
Device 3 is located in circular passage, and air-flow flows through 3 head of flameholder, air inflow increase, inside groove circumferential weld average exit speed drop
Low, airflow stability improves, and gas mixture is stablizing tank rear reflux low regime efficient burning.Flameholder trailing edge is set
Count the symmetrical expansion joint 4 of 36 waveforms, after making it heated can Free Transform, can avoid flameholder inside groove trailing edge 5 produce compared with
Large deformation and crackle.
Claims (4)
- A kind of 1. high-performance flexible flameholder, it is characterised in that：Including inner ring, outer shroud and flameholder；The inner ring circularizes passage with outer ring；The flameholder is arranged in circular passage；Expansion joint is arranged with the flameholder inside groove trailing edge；Flameholder and inner ring and outer shroud are fixed together by rivet interlacement expansion joint.
- A kind of 2. high-performance flexible flameholder as claimed in claim 1, it is characterised in that：The expansion joint is equipped with 36 It is a, it is evenly distributed on flameholder trailing edge.
- A kind of 3. high-performance flexible flameholder as claimed in claim 1, it is characterised in that：The outer ring size is 650mm, interior ring size 600mm.
- A kind of 4. high-performance flexible flameholder as claimed in claim 1, it is characterised in that：The expansion joint and flame are steady It is punch forming to determine device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711177913.0A CN107965769A (en) | 2017-11-23 | 2017-11-23 | A kind of high-performance flexible flameholder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711177913.0A CN107965769A (en) | 2017-11-23 | 2017-11-23 | A kind of high-performance flexible flameholder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107965769A true CN107965769A (en) | 2018-04-27 |
Family
ID=61999753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711177913.0A Pending CN107965769A (en) | 2017-11-23 | 2017-11-23 | A kind of high-performance flexible flameholder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107965769A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728584A (en) * | 2020-11-24 | 2021-04-30 | 南京航空航天大学 | Flame stabilizer, radial flame stabilizer and combustion chamber |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059398A (en) * | 1990-08-28 | 1992-03-11 | 通用电气公司 | Two stage v-gutter fuel injection mixer |
| CN101326138A (en) * | 2005-12-08 | 2008-12-17 | 斯奈克玛 | Metal part and brazed joint between of part produced from ceramic material |
| CN103277814A (en) * | 2013-05-10 | 2013-09-04 | 南京航空航天大学 | Low-emission trapped-vortex combustor with rich-burn/quick-quench/lean-burn combined with lean pre-mix pre-vaporization |
| CN203925751U (en) * | 2014-06-26 | 2014-11-05 | 中航商用航空发动机有限责任公司 | Diffuser and aeroengine |
| CN104439634A (en) * | 2014-11-07 | 2015-03-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Device for preventing welding deformation of annular V groove stabilizer and use method of device for preventing welding deformation of annular V groove stabilizer |
| CN104848256A (en) * | 2015-05-20 | 2015-08-19 | 北京航空航天大学 | Thin film evaporation type flame stabilizer without gas inlet ring |
-
2017
- 2017-11-23 CN CN201711177913.0A patent/CN107965769A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059398A (en) * | 1990-08-28 | 1992-03-11 | 通用电气公司 | Two stage v-gutter fuel injection mixer |
| CN101326138A (en) * | 2005-12-08 | 2008-12-17 | 斯奈克玛 | Metal part and brazed joint between of part produced from ceramic material |
| CN103277814A (en) * | 2013-05-10 | 2013-09-04 | 南京航空航天大学 | Low-emission trapped-vortex combustor with rich-burn/quick-quench/lean-burn combined with lean pre-mix pre-vaporization |
| CN203925751U (en) * | 2014-06-26 | 2014-11-05 | 中航商用航空发动机有限责任公司 | Diffuser and aeroengine |
| CN104439634A (en) * | 2014-11-07 | 2015-03-25 | 沈阳黎明航空发动机(集团)有限责任公司 | Device for preventing welding deformation of annular V groove stabilizer and use method of device for preventing welding deformation of annular V groove stabilizer |
| CN104848256A (en) * | 2015-05-20 | 2015-08-19 | 北京航空航天大学 | Thin film evaporation type flame stabilizer without gas inlet ring |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728584A (en) * | 2020-11-24 | 2021-04-30 | 南京航空航天大学 | Flame stabilizer, radial flame stabilizer and combustion chamber |
| CN112728584B (en) * | 2020-11-24 | 2021-12-07 | 南京航空航天大学 | Flame stabilizer, radial flame stabilizer and combustion chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180427 |