CN102175041A - Dividing wall type regenerative cooling air oxygen alcohol torch type igniter - Google Patents
Dividing wall type regenerative cooling air oxygen alcohol torch type igniter Download PDFInfo
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- CN102175041A CN102175041A CN 201010603619 CN201010603619A CN102175041A CN 102175041 A CN102175041 A CN 102175041A CN 201010603619 CN201010603619 CN 201010603619 CN 201010603619 A CN201010603619 A CN 201010603619A CN 102175041 A CN102175041 A CN 102175041A
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- oxidant
- nozzle
- fuel
- combustion chamber
- chamber
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- 238000001816 cooling Methods 0.000 title claims abstract description 36
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 title claims abstract description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 239000001301 oxygen Substances 0.000 title claims abstract description 15
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 15
- 230000001172 regenerating effect Effects 0.000 title claims abstract description 10
- 239000007800 oxidant agent Substances 0.000 claims abstract description 38
- 230000001590 oxidative effect Effects 0.000 claims abstract description 36
- 238000002485 combustion reaction Methods 0.000 claims abstract description 35
- 239000000446 fuel Substances 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 239000007921 spray Substances 0.000 claims description 16
- 230000008929 regeneration Effects 0.000 claims description 10
- 238000011069 regeneration method Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 claims description 9
- 238000007373 indentation Methods 0.000 claims description 9
- 238000005507 spraying Methods 0.000 abstract 1
- 239000003380 propellant Substances 0.000 description 11
- 238000003466 welding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 231100000252 nontoxic Toxicity 0.000 description 3
- 230000003000 nontoxic effect Effects 0.000 description 3
- 230000002269 spontaneous effect Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010892 electric spark Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 210000003027 ear inner Anatomy 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003721 gunpowder Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- VOITXYVAKOUIBA-UHFFFAOYSA-N triethylaluminium Chemical compound CC[Al](CC)CC VOITXYVAKOUIBA-UHFFFAOYSA-N 0.000 description 1
- LALRXNPLTWZJIJ-UHFFFAOYSA-N triethylborane Chemical group CCB(CC)CC LALRXNPLTWZJIJ-UHFFFAOYSA-N 0.000 description 1
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- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The invention discloses a dividing wall type regenerative cooling air oxygen alcohol torch type igniter which comprises an oxidant shell, a middle bottom, an inner bottom, a cooling jacket, a combustion chamber, a nozzle, a sparking plug, an oxidant inlet pipe mouth and a fuel inlet pipe mouth, wherein oxygen and alcohol are adopted as a propellent, and ignition is carried out by adopting the electric sparking plug. The nozzle comprises a straight-flow nozzle and an eccentric type nozzle, the straight-flow nozzle is an oxidant nozzle, the eccentric nozzle is a fuel nozzle, a cavity from the outlet of the straight-flow nozzle to the outlet of the eccentric nozzle is a reducing chamber; oxidant enters the reducing chamber from the straight-flow nozzle, fuel enters a fuel before-spraying liquid collecting cavity through a regenerating cooling chamber and then rotates through eccentric nozzle tangential holes and enters the reducing chamber, and the oxidant and the fuel are atomized and mixed in the reducing chamber and stably combusted at the outlets of the nozzles. High-temperature fuel is uniformly mixed in the combustion chamber and then sprayed through the throat part of the combustion chamber to form a stable torch. The invention ensures ignition and cooling reliability of an igniter and stable combustion of the torch at the outlet.
Description
Technical field
The present invention relates to a kind of torch igniter, specifically be a kind of dividing wall type regeneration cooling torch igniter that uses oxygen and alcohol as propellant, can be applicable to the ignition process of the igniting of ground burner and nonhypergolic propellant liquid-propellant rocket engine thrust chamber, generator.
Background technology
Present widely used igniter mainly contains cartridge, electric spark igniter, resonant mode igniter and spontaneous combustion torch igniter.The reliability of cartridge and hypergolic igniter is higher, but the reusability of the two is relatively poor, must load again after the each use of cartridge, and be easy to generate residue after the solid gunpowder burning, and the operation and maintenance process is extremely inconvenient.The propellant that hypergolic igniter uses is liquid state, does not generally have the problem of combustion residue, but the hypergolic propellants combination overwhelming majority has toxicity, as nitric acid and triethanolamine.This is comparatively inconvenience for the igniter that is repeatedly used.It is simple, convenient, workable that electric spark igniter uses, and have very big advantage for the ground experiment system, but this igniter ignition energy is less, is mainly used in the propellant combination igniting of less gas/gas of mass flow or gas/liquid form.Resonant mode igniter Recent study is more, but as a kind of emerging igniter, its key technology is still waiting further research.
Along with the development and progress of technology, higher requirement is proposed igniter.To guarantee that not only propellant and combustion product are nontoxic, pollution-free, ignition energy abundance, igniting reliability height; It is convenient also will to satisfy working service, the demand that reusability is strong.Domestic present high thrust liquid-propellant rocket engine such as oxygen kerosene engine use the mixture of triethyl aluminum and boron triethyl as igniting agent and since this igniting agent meet oxygen will spontaneous combustion, so its working service is more loaded down with trivial details, security is lower.The liquid oxygen hydrogen engine adopts the pyrophoric ignition device at present, and not only there is the problem of combustion residue in cartridge, will satisfy the repeatedly igniting of engine simultaneously a plurality of cartridges must be installed.And cartridge, spontaneous combustion torch igniter (propellant is poisonous) etc. are often adopted in the igniting of the big flow burner in ground, and this has brought adverse effect for the repeated use and the maintenance of ground installation.
In sum, domestic igniter at present commonly used all in various degree existence uses limitation, can't satisfy the igniting demand of various burners.Requirement such as guarantee that igniting is reliable, nontoxic pollution-free, ignition energy abundance, working service are convenient needs the novel igniter of research.
Summary of the invention
The object of the invention provides a kind of dividing wall type regeneration cold gas oxygen alcohol torch igniter, and it has solved existing igniter poor reliability, ignition energy is low, working service is inconvenient technical problem.
The advantage that the present invention had:
A kind of dividing wall type regeneration cold gas oxygen alcohol torch igniter, its special character is: comprise oxidant assembly, fuel assembly, the middle end 2, the interior end 3, spark plug 16, nozzle assembly 10 and combustion chamber 5; Described oxidant assembly comprises oxidant housing 1, the oxidant inlet ozzle 8 that communicates with oxidant housing 1, and described oxidant housing 1 constitutes oxidant cavity with the middle end 2; Described fuel assembly comprises and wraps in the outer cooling jacket 4 in combustion chamber 5, is arranged on the fuel inlet ozzle 9 on the cooling jacket, the other end at the end 2 and the interior end 3, constitute the preceding liquid collecting cavity 15 of fuel spray in described, described combustion chamber 5 and cooling jacket 4 constitute regenerative cooling channels 6, and described fuel inlet ozzle 9 is near the throat 7 of combustion chamber; Place, the ends 3 in described spark plug 16 is arranged on; Described nozzle assembly 10 is fixed at middle the end 2, it comprises smooth-bore tip 18, wraps in the rotarytype injector 11 in the outside of smooth-bore tip 18, one end of described smooth-bore tip communicates with oxidant housing 1 by direct current hole 12, the other end is opened in the rotarytype injector 11, one end of described rotarytype injector communicates with liquid collecting cavity 15 before the fuel spray by a plurality of tangential spray orifices 17 that are arranged on the sidewall, and the other end is opened on the interior end 3; Form indentation chamber 13 between the opening of the open end of described smooth-bore tip and rotarytype injector 11, form eddy flow chamber 20 between the lateral surface of described smooth-bore tip and the medial surface of rotarytype injector.
The center at the end 3 in the rotarytype injector of said nozzle assembly 10 is opened on.
The present invention's beneficial effect compared with prior art is:
1, torch igniter of the present invention has adopted dividing wall type regeneration cooling structure form, cooling jacket and combustion chamber form regenerative cooling channels, fuel enters regenerative cooling channels by alcohol inlet ozzle, the combustion chamber is entered liquid collecting cavity before the fuel spray after cooling off, can adapt to the erosion of high-temperature fuel gas in the combustion chamber, when satisfying the igniting demand of big flow burner, guaranteed igniter self cooling reliability effectively.
2, torch igniter of the present invention adopts the coaxial DC rotarytype injector, by selecting suitable nozzle length and indentation length, has effectively realized gas-liquid blending, has improved igniter self igniting reliability, has suppressed the generation of combustion instability simultaneously.
3, torch igniter of the present invention adopts dividing wall type regeneration cooling structure, has avoided labyrinths such as traditional corrugated plating, groove milling, has reduced difficulty of processing.
4, torch igniter of the present invention is simple in structure, and intensity is reliable, and working service is convenient, possesses the repeated use ability.
5, the propellant of torch igniter of the present invention and combustion product are nontoxic, pollution-free, and working service is convenient.
Description of drawings
The structural representation of Fig. 1 torch igniter of the present invention;
The structural representation of the coaxial DC rotarytype injector that Fig. 2 the present invention adopts;
Wherein: 1-oxidant housing, the end among the 2-, the end in the 3-, the 4-cooling jacket, 5-combustion chamber, 6-regenerative cooling channels, 7-throat, 8-oxidant inlet ozzle, 9-fuel inlet ozzle, the 10-nozzle assembly, 11-rotarytype injector, 12-direct current hole, 13-indentation chamber, liquid collecting cavity before the spray of 15-fuel, 16-spark plug, the tangential spray orifice of 17-, 18-smooth-bore tip, 20-eddy flow chamber.
The specific embodiment
Dividing wall type regeneration cold gas oxygen alcohol torch igniter of the present invention comprises oxidant assembly, fuel assembly, the middle end 2, spark plug 16, nozzle assembly 10 and combustion chamber 5; The oxidant assembly comprises oxidant housing 1, the oxidant inlet ozzle 8 that communicates with oxidant housing 1, and oxidant housing 1 constitutes oxidant cavity with the middle end 2; Fuel assembly comprises and wraps in the outer cooling jacket 4 in combustion chamber 5, is arranged on the fuel inlet ozzle 9 on the cooling jacket, and the other end at the middle end 2 and the interior end constitute liquid collecting cavity 15 before the fuel spray.Oxidant housing 1 constitutes oxidant cavity with the middle ends 2 welding; Oxidant inlet ozzle and fuel inlet ozzle are welded on respectively on oxidant housing and the cooling jacket, form the inlet of propellant.Reliable cooling for the guarantee point firearm has designed cooling jacket.The gap that forms between cooling jacket and the combustion chamber constitutes regenerative cooling channels 6, and the clearance control between cooling jacket and the combustion chamber can improve the flow velocity of fuel in regenerative cooling channels effectively at 1mm, improves the regeneration cooling effect.Fuel inlet ozzle 9 is near the throat 7 of combustion chamber; Place, the ends 3 in spark plug 16 is arranged on; The middle end, the interior end, nozzle and the integral braze-welded formation head of spark plug pressure inlet, welding connection structure is taked in head and combustion chamber, satisfies a body bonding strength and air-tightness requirement.Nozzle assembly 10 is fixed at middle the end 2, it comprises smooth-bore tip 18, wraps in the rotarytype injector 11 in the outside of smooth-bore tip 18, the welding of smooth-bore tip and rotarytype injector, and between the opening of the open end of smooth-bore tip and rotarytype injector 11 formation indentation chamber 13.The indentation length that smooth-bore tip of the present invention and rotarytype injector form determines that according to test nozzle indentation length shown in Figure 2 is elected 6mm as.One end of smooth-bore tip communicates with oxidant housing 1 by direct current hole 12, the other end is opened in the rotarytype injector 11, one end of rotarytype injector communicates with liquid collecting cavity 15 before the fuel spray by a plurality of tangential spray orifices 17 that are arranged on the sidewall, and the other end is opened on the interior end; Form eddy flow chamber 20 between the lateral surface of smooth-bore tip and the medial surface of rotarytype injector.In order to make combustion gas more even, also in order to reduce the damage of combustion chamber inwall, the center at the end 3 in the rotarytype injector of nozzle assembly 10 preferably is opened on.
The principle of the invention is: direct current rotarytype injector of torch igniter header arrangement, and an electric plug is installed.Oxygen enters oxidant cavity by the oxidant inlet ozzle and enters the combustion chamber through smooth-bore tip, the flow velocity of oxidant in the direct current hole is not more than 0.3 Mach, alcohol enters the preceding liquid collecting cavity of fuel spray by the fuel inlet ozzle by regenerative cooling channels, again through the adherent rotation of tangential hole on the rotarytype injector by the spin chamber and enter the indentation chamber, alcohol atomizes, evaporates indoor beginning of indentation, and carries out entering the combustion chamber after the blending with oxygen.The mixture of oxygen and alcohol is ignited in the electric plug energising sparking discharge that is installed in the spark plug pressure inlet, the high-temperature fuel gas that produces is set up constant pressure in the combustion chamber after the blending of combustion chamber, form stable torch through throat and enter in the main burner that needs igniting, for burner provides sufficient ignition energy.
The material of each part of torch igniter of the present invention all adopts stainless steel, and each is zero, Welding Structure is all adopted in the connection of parts, has effectively guaranteed air-tightness and bonding strength.In order to reduce the loading time of the preceding liquid collecting cavity of fuel spray, the cooling reliability at the end in improving needs the distance at the interior end of control and the middle end.This structure helps reducing fuel spray ante-chamber volume, and improves the alcohol flow velocity in the fuel spray ante-chamber, improves the heat exchange effect.
Torch igniter of the present invention is through the examination of heat run repeatedly, and the functional reliability of torch igniter and working service characteristics have easily been verified in the test run examination.The torch igniter cooling performance is good, checks that through the igniter examination back of repeatedly heat run structure is intact.
Claims (2)
1. dividing wall type regeneration cold gas oxygen alcohol torch igniter is characterized in that: comprise oxidant assembly, fuel assembly, the middle end (2), the interior end (3), spark plug (16), nozzle assembly (10) and combustion chamber (5); Described oxidant assembly comprises oxidant housing (1), the oxidant inlet ozzle (8) that communicates with oxidant housing (1), and described oxidant housing (1) constitutes oxidant cavity with the middle end (2); Described fuel assembly comprises and wraps in the outer cooling jacket (4) in combustion chamber (5), is arranged on the fuel inlet ozzle (9) on the cooling jacket, the other end at the end (2) and the interior end (3) constitute the preceding liquid collecting cavity (15) of fuel spray in described, described combustion chamber (5) and cooling jacket (4) constitute regenerative cooling channels (6), and described fuel inlet ozzle (9) is near the throat (7) of combustion chamber; Described spark plug (16) is arranged on the interior end (3) and locates; Described nozzle assembly (10) is fixed at the middle end (2), it comprises smooth-bore tip (18), wraps in the rotarytype injector (11) in the outside of smooth-bore tip (18), one end of described smooth-bore tip communicates with oxidant housing (1) by direct current hole (12), the other end is opened in the rotarytype injector (11), one end of described rotarytype injector communicates with liquid collecting cavity (15) before the fuel spray by a plurality of tangential spray orifices (17) that are arranged on the sidewall, and the other end is opened on the interior end (3); Form indentation chamber (13) between the opening of the open end of described smooth-bore tip and rotarytype injector (11), form eddy flow chamber (20) between the lateral surface of described smooth-bore tip and the medial surface of rotarytype injector.
2. dividing wall type regeneration cold gas oxygen alcohol torch igniter according to claim 1, it is characterized in that: the rotarytype injector of described nozzle assembly (10) is opened on the center of the interior end (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106036193A CN102175041B (en) | 2010-12-23 | 2010-12-23 | Dividing wall type regenerative cooling air oxygen alcohol torch type igniter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106036193A CN102175041B (en) | 2010-12-23 | 2010-12-23 | Dividing wall type regenerative cooling air oxygen alcohol torch type igniter |
Publications (2)
| Publication Number | Publication Date |
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| CN102175041A true CN102175041A (en) | 2011-09-07 |
| CN102175041B CN102175041B (en) | 2012-06-27 |
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| CN2010106036193A Expired - Fee Related CN102175041B (en) | 2010-12-23 | 2010-12-23 | Dividing wall type regenerative cooling air oxygen alcohol torch type igniter |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108915898A (en) * | 2018-07-11 | 2018-11-30 | 苏州频聿精密机械有限公司 | A kind of rocket engine reducing fuel consumption |
| CN109386400A (en) * | 2018-12-07 | 2019-02-26 | 上海空间推进研究所 | A kind of laser torch lighter for liquid oxygen/methane engine |
| CN109416001A (en) * | 2016-07-19 | 2019-03-01 | 航天喷气发动机洛克达因股份有限公司 | Injector elements for rocket engine |
| CN109653903A (en) * | 2019-02-20 | 2019-04-19 | 中国科学院力学研究所 | A kind of repeatable igniter for solid-liquid rocket |
| CN110925094A (en) * | 2019-11-28 | 2020-03-27 | 四川泛华航空仪表电器有限公司 | Cooling structure of ignition device |
| CN115289497A (en) * | 2022-09-22 | 2022-11-04 | 中国空气动力研究与发展中心空天技术研究所 | Pneumatic resonance ignition device for combustion heater |
| CN116164307A (en) * | 2023-03-09 | 2023-05-26 | 中国空气动力研究与发展中心空天技术研究所 | Gas spiral-flow type air-hydrogen torch igniter |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016363B (en) * | 2016-05-17 | 2017-03-15 | 中国人民解放军63820部队吸气式高超声速技术研究中心 | A kind of lighter |
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| US4078377A (en) * | 1974-01-28 | 1978-03-14 | Ford Motor Company | Internally vaporizing low emission combustor |
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| US5309710A (en) * | 1992-11-20 | 1994-05-10 | General Electric Company | Gas turbine combustor having poppet valves for air distribution control |
| GB2405197A (en) * | 2003-08-16 | 2005-02-23 | Rolls Royce Plc | A variable geometry premixing fuel injector |
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2010
- 2010-12-23 CN CN2010106036193A patent/CN102175041B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2865174A (en) * | 1956-05-16 | 1958-12-23 | United Aircraft Corp | Screech reduction in combustion chambers |
| US4078377A (en) * | 1974-01-28 | 1978-03-14 | Ford Motor Company | Internally vaporizing low emission combustor |
| CN1056563A (en) * | 1990-05-03 | 1991-11-27 | 通用电气公司 | The transpiration cooled throat section of low NOx combustor and relevant technological method |
| US5309710A (en) * | 1992-11-20 | 1994-05-10 | General Electric Company | Gas turbine combustor having poppet valves for air distribution control |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109416001A (en) * | 2016-07-19 | 2019-03-01 | 航天喷气发动机洛克达因股份有限公司 | Injector elements for rocket engine |
| CN108915898A (en) * | 2018-07-11 | 2018-11-30 | 苏州频聿精密机械有限公司 | A kind of rocket engine reducing fuel consumption |
| CN109386400A (en) * | 2018-12-07 | 2019-02-26 | 上海空间推进研究所 | A kind of laser torch lighter for liquid oxygen/methane engine |
| CN109386400B (en) * | 2018-12-07 | 2021-01-12 | 上海空间推进研究所 | Laser torch igniter for liquid oxygen/methane engine |
| CN109653903A (en) * | 2019-02-20 | 2019-04-19 | 中国科学院力学研究所 | A kind of repeatable igniter for solid-liquid rocket |
| CN110925094A (en) * | 2019-11-28 | 2020-03-27 | 四川泛华航空仪表电器有限公司 | Cooling structure of ignition device |
| CN110925094B (en) * | 2019-11-28 | 2021-10-22 | 四川泛华航空仪表电器有限公司 | Cooling structure of ignition device |
| CN115289497A (en) * | 2022-09-22 | 2022-11-04 | 中国空气动力研究与发展中心空天技术研究所 | Pneumatic resonance ignition device for combustion heater |
| CN116164307A (en) * | 2023-03-09 | 2023-05-26 | 中国空气动力研究与发展中心空天技术研究所 | Gas spiral-flow type air-hydrogen torch igniter |
| CN116164307B (en) * | 2023-03-09 | 2024-04-19 | 中国空气动力研究与发展中心空天技术研究所 | Gas spiral-flow type air-hydrogen torch igniter |
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| Publication number | Publication date |
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| CN102175041B (en) | 2012-06-27 |
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