CN1031890A - Dune-shaped stationary-eddy flameholder - Google Patents
Dune-shaped stationary-eddy flameholder Download PDFInfo
- Publication number
- CN1031890A CN1031890A CN 85100305 CN85100305A CN1031890A CN 1031890 A CN1031890 A CN 1031890A CN 85100305 CN85100305 CN 85100305 CN 85100305 A CN85100305 A CN 85100305A CN 1031890 A CN1031890 A CN 1031890A
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- CN
- China
- Prior art keywords
- stabilizer
- flameholder
- dune
- burner
- eddy
- 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
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- Gas Burners (AREA)
Abstract
Be used to improve the dune-shaped stationary-eddy flameholder of burner performance, two curved surfaces that are similar to the natural crescent sand dune that forms in the desert by symmetrical shape up and down amalgamation are formed.Can constitute the stabilizer sub-assembly by a plurality of stabilizers, the present invention is littler than good stability, the resistance of the V-type groove stabilizer that uses at present, efficiency of combustion is high, be difficult for hugging.
Description
The present invention is used to improve the combustibility of burner.
The flameholder that is adopted in burner at present all has its intrinsic shortcoming.The V-type groove stabilizer that adopts at present of jet engine after-burner for example, its major defect is that aerodynamic drag is big, and stability range is narrow, and efficiency of combustion is low, and hugging takes place easily.
The purpose of this invention is to provide a kind of novel flameholder, overcome the shortcoming of V-type groove stabilizer, improve the performance of burner.
The technical solution of invention is the profile of stabilizer to be made the shape on the crescent sand dune of natural formation in the similar desert.The shape of stabilizer and structure are provided by Fig. 1 and Fig. 2.Dune-shaped stationary-eddy flameholder by symmetrical top-surface camber (1) and lower surface camber (2) up and down amalgamation constitute stabilizer body,
The crescent sand dune of natural formation in the similar desert of the shape of each curved surface.
Further specify the details of invention below in conjunction with accompanying drawing.
Fig. 1 is the stabilizer front view.
Fig. 2 is the stabilizer vertical view.
Fig. 3 is stabilizer application example in a kind of burner.
Fig. 4 is a stabilizer rescinded angle method of attachment schematic diagram.
Fig. 1 and Fig. 2 provide the characteristic size of stabilizer, and wherein H is the stabilizer maximum height, and B is the stabilizer Breadth Maximum, and Lo is that the stabilizer waist is long, and L is the stabilizer maximum length. Should satisfy following relational expression between the characteristic size:
During take H as benchmark
B＝1.6～3.0H
Lo＝0.6～1.6H
L＝1.5～3.5H
The place ahead supply or two kinds of methods of inner supply are arranged during to the dune-shaped stationary-eddy flameholder fuel supplying, also can use these two kinds of methods simultaneously.
During the place ahead fuel supplying, stabilizer is placed on appropriate location behind the fuel nozzle.
When adopting inner fuel supplying, connect fuel supply pipe (3), in the inner chamber that two curved surfaces surround fuel distribution plate (4) is arranged, fuel dispensing orifice (5) is arranged on the plate at stabilizer head or side.Dispensing orifice (5) ejection of fuel on pipe (3) and plate (4) forms the retention flame.
Dune-shaped stationary-eddy flameholder is compared with V-type groove stabilizer, and its advantage is:
The first, range of flame is wide and aerodynamic drag reduces on the contrary.THE BARCHAN DUNE VORTEX stabilizer and 60 ° of angle V-type groove stabilizers facing the wind during sectional area identical, and resistance reduces by 70%, and range of flame increases considerably.
The second, efficiency of combustion height.Originally the burner that used V-type groove stabilizer is changed the outfit behind the THE BARCHAN DUNE VORTEX stabilizer, can improve efficiency of combustion 6～12%.
Three, the periodicity of having eliminated the stabilizer trailing vortex comes off, and amplitude of pressure fluctuation when having reduced burning significantly helps the oscillation-damped burning.
Four, be used in the jet engine after-burner, need not take other measures, can improve 2～4% of the complete afterburning thrust of former machine, and can reduce oil consumption rate.
Dune-shaped stationary-eddy flameholder can be used separately in burner, also can be used in combination with a plurality of stabilizers.Fig. 3 provides the example that dune-shaped stationary-eddy flameholder is used in a kind of burner.Between burner inwall (8) and the centerbody (9) the stabilizer sub-assembly of being made up of single THE BARCHAN DUNE VORTEX stabilizer is housed, each stabilizer can also can be taked other method for arranging along evenly distributing with the concentric circumference of burner.The interval G of adjacent two stabilizers should satisfy O≤G≤1/2 B, should determine the number of used single stabilizer according to the burner actual space available.Can be circular or fusiform circumferential flame tube interconnector (6) connection with the cross section between adjacent two stabilizers, also can adopt rescinded angle method of attachment as shown in Figure 4, be about to directly weld with another stabilizer after a part is clipped at the meniscate tip of each stabilizer.The stabilizer sub-assembly is connected on the centerbody (9) by radially joining flame groove (7), also can be connected on the burner inwall (8).According to burner sectional area size, this stabilizer sub-assembly can be an individual pen, also can be multi-turn.
Claims (4)
1, be used to improve the flameholder of burner performance, it is characterized in that it is made up of symmetrical top-surface camber (1) and the symmetrical amalgamation of lower surface camber (2), in the similar desert of the shape of single curved surface the crescent sand dune of natural formation.
2, flameholder according to claim 1, the relation between its characteristic size is: B=1.6～3.0H, Lo=0.6～1.6H, L=1.5～3.5H.
3, flameholder according to claim 2 is characterized in that head or sidewall have fuel supply pipe (3), in the inner chamber that two curved surfaces surround fuel distribution plate (4) is arranged, and fuel dispensing orifice (5) is arranged on the plate.
4, according to claim 1,2 or 3 described flameholders, it is characterized in that being interconnected to the stabilizer sub-assembly by single stabilizer, can be circular or fusiform flame tube interconnector (6) connection with the cross section between adjacent two stabilizers, also can rescinded angle connect; The stabilizer sub-assembly is connected on centerbody (9) or the burner inwall (8) by radially joining flame groove (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85100305 CN1031890A (en) | 1985-12-26 | 1985-12-26 | Dune-shaped stationary-eddy flameholder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 85100305 CN1031890A (en) | 1985-12-26 | 1985-12-26 | Dune-shaped stationary-eddy flameholder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1031890A true CN1031890A (en) | 1989-03-22 |
Family
ID=4791046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 85100305 Pending CN1031890A (en) | 1985-12-26 | 1985-12-26 | Dune-shaped stationary-eddy flameholder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1031890A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102213423A (en) * | 2010-03-15 | 2011-10-12 | 通用电气公司 | Aerodynamic flame stablizer |
| CN101776283B (en) * | 2009-01-13 | 2012-06-20 | 北京航空航天大学 | Flame stabilizer with jet injection |
| CN102538010A (en) * | 2012-02-12 | 2012-07-04 | 北京航空航天大学 | Afterburner integrated with stabilizer and worm wheel rear rectification support plate |
| CN104048324A (en) * | 2014-07-24 | 2014-09-17 | 南京航空航天大学 | Evaporation type flame stabilizer |
| CN104879782A (en) * | 2015-05-18 | 2015-09-02 | 西北工业大学 | Novel asymmetric flame stabilizer |
| CN106979517A (en) * | 2017-04-19 | 2017-07-25 | 安德森热能科技（苏州）有限责任公司 | Low emission dual combustion mode high-temperature burner and its control method |
| CN108426267A (en) * | 2018-05-11 | 2018-08-21 | 北京航空航天大学 | A kind of folding V-type bluff body eddy flameholder |
-
1985
- 1985-12-26 CN CN 85100305 patent/CN1031890A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776283B (en) * | 2009-01-13 | 2012-06-20 | 北京航空航天大学 | Flame stabilizer with jet injection |
| CN102213423A (en) * | 2010-03-15 | 2011-10-12 | 通用电气公司 | Aerodynamic flame stablizer |
| CN102538010A (en) * | 2012-02-12 | 2012-07-04 | 北京航空航天大学 | Afterburner integrated with stabilizer and worm wheel rear rectification support plate |
| CN102538010B (en) * | 2012-02-12 | 2014-03-05 | 北京航空航天大学 | Afterburner integrated with stabilizer and worm wheel rear rectification support plate |
| CN104048324A (en) * | 2014-07-24 | 2014-09-17 | 南京航空航天大学 | Evaporation type flame stabilizer |
| CN104879782A (en) * | 2015-05-18 | 2015-09-02 | 西北工业大学 | Novel asymmetric flame stabilizer |
| CN106979517A (en) * | 2017-04-19 | 2017-07-25 | 安德森热能科技（苏州）有限责任公司 | Low emission dual combustion mode high-temperature burner and its control method |
| CN108426267A (en) * | 2018-05-11 | 2018-08-21 | 北京航空航天大学 | A kind of folding V-type bluff body eddy flameholder |
| CN108426267B (en) * | 2018-05-11 | 2023-07-25 | 北京航空航天大学 | Folding V-shaped blunt body standing vortex flame stabilizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| DC01 | Secret patent status has been lifted | ||
| PB01 | Publication |