CN112610983B - Ignition and combustion stabilizing device of water-jet engine - Google Patents
Ignition and combustion stabilizing device of water-jet engine Download PDFInfo
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- CN112610983B CN112610983B CN202011414534.0A CN202011414534A CN112610983B CN 112610983 B CN112610983 B CN 112610983B CN 202011414534 A CN202011414534 A CN 202011414534A CN 112610983 B CN112610983 B CN 112610983B
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- ignition
- electromagnetic induction
- water
- heating coil
- induction heating
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- 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
- F23R3/16—Continuous combustion chambers using liquid or gaseous fuel characterised by the air-flow or gas-flow configuration with devices inside the flame tube or the combustion chamber to influence the air or gas flow
- F23R3/18—Flame stabilising means, e.g. flame holders for after-burners of jet-propulsion plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/26—Starting; Ignition
- F02C7/264—Ignition
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses an ignition and combustion stabilization device of a water-jet engine. The invention comprises an electromagnetic induction heating coil, a conical flame stabilizer and an ignition control system; the ignition control system is connected with the electromagnetic induction heating coil; the electromagnetic induction heating coil surrounds the conical flame stabilizer, and the conical flame stabilizer is heated by using alternating current generated by electromagnetic induction; the conical flame holder is fixed at the central axis of the combustion chamber and is located after the mixing point of the fuel and oxidant water, with the conical tip pointing towards the metal powder inlet. By using the device provided by the invention, the ignition of the water ramjet can be effectively controlled, and the effect of flame stable combustion can be achieved.
Description
Technical Field
The invention relates to the technical field of water-jet engine combustion chamber design, in particular to an ignition and combustion stabilization device of a water-jet engine.
Background
The water-jet engine generates thrust by utilizing the reaction of high-energy metal fuel and external seawater, has the characteristics of high energy density, large specific impulse, simple structure, high reliability and the like, and is an ideal choice for the current ultra-high-speed torpedo cruising propulsion system. According to the supply mode of metal fuel, the water-jet engine can be divided into a powder type and a powder type, wherein the powder type water-jet engine feeds metal powder carried by the water-jet engine into a combustion chamber through a powder supply device, external seawater also enters the engine through a pipeline, and under the action of an ignition heat source, metal particles and atomized water drops entering the combustion chamber realize stable combustion through a reasonable combustion organization form to release a large amount of heat.
The internal configuration of the combustion chamber has important effects on the flow of fluid and the mixed combustion of metal powder and water, and in order to achieve the purpose of stabilizing the flame, a proper flame stabilizing device is selected in the combustion chamber, so that a backflow motion of a part of burnt high-temperature combustion products is generated to be used as a continuous ignition source with an automatic compensation capability, and fresh unburnt combustible mixture is continuously ignited.
Disclosure of Invention
In view of this, the invention provides an ignition and combustion stabilization device for a water-jet engine, which can simultaneously achieve engine ignition and flame stabilization and has a simple and compact structure.
The invention relates to an ignition and combustion stabilization device of a water-jet engine, which comprises an electromagnetic induction heating coil, a conical flame stabilizer and an ignition control system; the ignition control system is connected with the electromagnetic induction heating coil; the electromagnetic induction heating coil surrounds the conical flame stabilizer, and the conical flame stabilizer is heated by using alternating current generated by electromagnetic induction; the conical flame holder is fixed at the central axis of the combustion chamber and is located after the mixing point of the fuel and oxidant water, with the conical tip pointing towards the metal powder inlet.
Preferably, the two poles of the electromagnetic induction heating coil are connected with wiring terminals arranged on the wall of the combustion chamber and then connected with an external ignition control system.
Preferably, the conical flame holder is made of an ablation-resistant material.
Preferably, the conical flame holder is a solid cone made of a ceramic material.
Further, the ignition control system adjusts the current of the electromagnetic induction heating coil according to the requirement so as to control the temperature of the conical flame stabilizer.
Has the advantages that:
by using the device provided by the invention, the ignition of the water ramjet can be effectively controlled, and the effect of flame stable combustion can be achieved.
Drawings
Fig. 1 is a schematic view of an ignition and combustion stabilization device of a water-jet engine.
The device comprises an electromagnetic induction heating coil 1, an ablation-resistant conical flame stabilizer 2, an ignition control system 3, an atomized water inlet 4, a metal powder fuel inlet 5 and an engine combustion chamber 6.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
The invention provides an ignition and combustion stabilization device of a water-jet engine, which comprises an electromagnetic induction heating coil 1, an ablation-resistant conical flame stabilizer 2 and an ignition control system 3, as shown in figure 1.
Wherein the conical flame holder 2 is fixed at the central axis of the combustion chamber 6 and is located at the position after the metal fuel and the water are mixed, and the top of the cone is directed to the metal powder inlet 5. The electromagnetic induction heating coil 1 surrounds the conical flame stabilizer 2, and two poles of the electromagnetic induction heating coil 1 are connected with a wiring terminal arranged on the wall of the combustion chamber 6 and then connected with an external ignition control system 3.
The conical flame stabilizer is surrounded by the electromagnetic induction heating coil, and after the conical flame stabilizer is electrified, the flame stabilizer is heated to high temperature by using alternating current generated by electromagnetic induction, and the temperature can be controlled by an ignition control system.
Preferably, the conical flame stabilizer is made of ablation-resistant materials, and in the embodiment, the conical flame stabilizer is a solid cone made of high-temperature-resistant ceramic materials.
In the working state of the water-flushed engine, firstly, metal fuel in a powder state enters a combustion chamber along with fluidizing gas, then atomized water is introduced through a nozzle to serve as an oxidant, meanwhile, an ignition control system 3 is started, and an alternating magnetic field is generated by an electromagnetic induction heating coil 1, so that alternating current is generated inside a conical flame stabilizer 2, and the conical flame stabilizer is rapidly heated. The metal fuel and the atomized water mixed in front of the conical flame stabilizer 2 start to rapidly burn and react when meeting high temperature, and the ignition of the water-thrust engine is finished. The combustion products and part of unburnt fuel and atomized water flow through the conical flame stabilizer 2 together, because the fluid velocity is fast and the passageway expands suddenly after flowing through the conical flame stabilizer 2, has formed the recirculation zone at the conical flame stabilizer 2 rear portion, and unburnt metal fuel particle can be absorbed by the entrainment and get into the recirculation zone and receive the high temperature effect to participate in the burning, forms recirculation zone flame, makes the aluminium water reaction can carry out more fully.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. An ignition and combustion stabilization device of a water-washed pressure engine is characterized by comprising an electromagnetic induction heating coil (1), a conical flame stabilizer (2) and an ignition control system (3); wherein the ignition control system (3) is connected with the electromagnetic induction heating coil (1); the electromagnetic induction heating coil (1) surrounds the conical flame stabilizer (2), and the conical flame stabilizer is heated by alternating current generated by electromagnetic induction; the conical flame holder (2) is fixed at the central axis of the combustion chamber (6) and is located after the mixing point of the fuel and oxidant water, the conical tip being directed towards the metal powder inlet.
2. The ignition and combustion stabilization device of the water hammer engine according to claim 1, wherein two poles of the electromagnetic induction heating coil (1) are connected with a binding post installed on the wall of the combustion chamber (6) and then connected with an external ignition control system (3).
3. The ignition and combustion stabilization device of the water hammer engine according to claim 1, wherein the conical flame stabilizer (2) is made of an ablation-resistant material.
4. A water hammer engine ignition combustion stabilizing device as claimed in claim 1 or 3, characterized in that the conical flame stabilizer (2) is a solid cone made of ceramic material.
5. The ignition and combustion stabilization device of the water hammer engine according to claim 1, wherein the ignition control system adjusts the current of the electromagnetic induction heating coil (1) according to the requirement so as to control the temperature of the conical flame stabilizer (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011414534.0A CN112610983B (en) | 2020-12-07 | 2020-12-07 | Ignition and combustion stabilizing device of water-jet engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011414534.0A CN112610983B (en) | 2020-12-07 | 2020-12-07 | Ignition and combustion stabilizing device of water-jet engine |
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| Publication Number | Publication Date |
|---|---|
| CN112610983A CN112610983A (en) | 2021-04-06 |
| CN112610983B true CN112610983B (en) | 2022-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011414534.0A Active CN112610983B (en) | 2020-12-07 | 2020-12-07 | Ignition and combustion stabilizing device of water-jet engine |
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| CN (1) | CN112610983B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114440259B (en) * | 2021-12-14 | 2023-01-17 | 西安航天动力研究所 | Spliced flame stabilizing device with multiple oil supply paths |
| CN114810426B (en) * | 2022-04-26 | 2023-06-27 | 中国人民解放军国防科技大学 | Two-stage water inlet cyclone combustion chamber and combustion organization method |
Citations (10)
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|---|---|---|---|---|
| JPH0579628A (en) * | 1991-08-19 | 1993-03-30 | Natl Aerospace Lab | Combustion machine for high-speed aeronautical engine |
| RU2006115303A (en) * | 2006-05-05 | 2007-11-10 | Федеральное государственное унитарное предпри тие"Центральный институт авиационного моторостроени имени П.И. Баранова" (RU) | METHOD FOR CUTTING OFF AND REGULATION OF DRAWERS OF RECTANGULAR AIR-REACTIVE ENGINES ON SOLID FUEL AND DEVICE FOR ITS IMPLEMENTATION |
| CN101334174A (en) * | 2008-06-19 | 2008-12-31 | 北京航空航天大学 | V -type cone flame holder for rotor engine |
| CN102607061A (en) * | 2012-03-26 | 2012-07-25 | 北京航空航天大学 | Geometrical variable flame stabilizing device |
| CN206130969U (en) * | 2016-09-30 | 2017-04-26 | 烟台龙源电力技术股份有限公司 | Coal burner and boiler |
| CN106884739A (en) * | 2017-05-05 | 2017-06-23 | 中国科学院力学研究所 | A kind of punching engine that thrust is lifted based on liquid fuel mixing energetic material powder |
| CN106949498A (en) * | 2017-05-05 | 2017-07-14 | 中国科学院力学研究所 | It is a kind of that the punching engine that energetic material powder lifts thrust is sprayed into based on combustion chamber |
| CN108916850A (en) * | 2018-06-15 | 2018-11-30 | 西南科技大学 | A kind of hydroreactive metal fuel eddy flow punching press steam generator |
| CN208846474U (en) * | 2018-05-11 | 2019-05-10 | 北京航空航天大学 | A kind of folding V-type bluff body eddy flameholder |
| CN109736965A (en) * | 2019-01-04 | 2019-05-10 | 中国人民解放军国防科技大学 | Pulse injection device, liquid fuel supply system and scramjet engine |
-
2020
- 2020-12-07 CN CN202011414534.0A patent/CN112610983B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0579628A (en) * | 1991-08-19 | 1993-03-30 | Natl Aerospace Lab | Combustion machine for high-speed aeronautical engine |
| RU2006115303A (en) * | 2006-05-05 | 2007-11-10 | Федеральное государственное унитарное предпри тие"Центральный институт авиационного моторостроени имени П.И. Баранова" (RU) | METHOD FOR CUTTING OFF AND REGULATION OF DRAWERS OF RECTANGULAR AIR-REACTIVE ENGINES ON SOLID FUEL AND DEVICE FOR ITS IMPLEMENTATION |
| CN101334174A (en) * | 2008-06-19 | 2008-12-31 | 北京航空航天大学 | V -type cone flame holder for rotor engine |
| CN102607061A (en) * | 2012-03-26 | 2012-07-25 | 北京航空航天大学 | Geometrical variable flame stabilizing device |
| CN206130969U (en) * | 2016-09-30 | 2017-04-26 | 烟台龙源电力技术股份有限公司 | Coal burner and boiler |
| CN106884739A (en) * | 2017-05-05 | 2017-06-23 | 中国科学院力学研究所 | A kind of punching engine that thrust is lifted based on liquid fuel mixing energetic material powder |
| CN106949498A (en) * | 2017-05-05 | 2017-07-14 | 中国科学院力学研究所 | It is a kind of that the punching engine that energetic material powder lifts thrust is sprayed into based on combustion chamber |
| CN208846474U (en) * | 2018-05-11 | 2019-05-10 | 北京航空航天大学 | A kind of folding V-type bluff body eddy flameholder |
| CN108916850A (en) * | 2018-06-15 | 2018-11-30 | 西南科技大学 | A kind of hydroreactive metal fuel eddy flow punching press steam generator |
| CN109736965A (en) * | 2019-01-04 | 2019-05-10 | 中国人民解放军国防科技大学 | Pulse injection device, liquid fuel supply system and scramjet engine |
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| 火焰稳定器综述;金莉等;《火箭推进》;20060228(第01期);全文 * |
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| CN112610983A (en) | 2021-04-06 |
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