CN109441636B - Axial oil-supplementing cracking device - Google Patents
Axial oil-supplementing cracking device Download PDFInfo
- Publication number
- CN109441636B CN109441636B CN201811574890.1A CN201811574890A CN109441636B CN 109441636 B CN109441636 B CN 109441636B CN 201811574890 A CN201811574890 A CN 201811574890A CN 109441636 B CN109441636 B CN 109441636B
- Authority
- CN
- China
- Prior art keywords
- oil
- cracking
- cracking chamber
- combustion
- supplementing
- 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.)
- Active
Links
Images
Classifications
-
- 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
- F02C3/00—Gas-turbine plants characterised by the use of combustion products as the working fluid
- F02C3/14—Gas-turbine plants characterised by the use of combustion products as the working fluid characterised by the arrangement of the combustion chamber in the plant
-
- 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
- F02C7/22—Fuel supply systems
Abstract
The invention relates to an axial oil-supplementing cracking device which comprises a pre-combustion cracking chamber with through holes at two ends, wherein an oil-supplementing injection nozzle is fixed inside the pre-combustion cracking chamber, the oil injection direction of the oil-supplementing injection nozzle is arranged along the central axial direction of the pre-combustion cracking chamber, and the oil-supplementing injection nozzle is communicated with an oil supply device. The kerosene is cracked through the pre-combustion cracking chamber, and the small molecular fuel and the active groups generated by cracking can be introduced into the rotary detonation engine, so that the detonation energy in the rotary detonation engine can be obviously reduced, the detonation time can be shortened, the detonation frequency can be improved, and the purpose of utilizing kerosene-air detonation can be achieved.
Description
Technical Field
The invention relates to the technical field of aero-engines, in particular to an axial oil supplementing cracking device.
Background
The thermal cycle efficiency of the rotary detonation engine is about 30% higher than that of the traditional gas turbine engine, is a research hotspot and frontier of international military aviation power, is expected to remarkably reduce the oil consumption rate, and is used for high-speed penetration prevention equipment in the adjacent space.
With the rapid development of aerospace industry, the demand for high-performance propulsion and power systems is increasing, and the performance indexes of the propulsion and power systems are also related to the design parameters of the aircraft. In order to improve the performance of the propulsion system, the adoption of efficient combustion organization and energy utilization mode become important means in research. The conventional power system, such as a turbine engine, a rocket engine and the like, adopts an isobaric combustion mode, and has low cycle efficiency. The combustion method includes a knocking combustion method of approximately equal volume in addition to knocking. Research shows that the detonation combustion has high thermodynamic cycle efficiency, high energy release density and extremely high heat release rate. For this reason detonation engines have gained increasing attention, have also made great progress and have been of engineering use in the aerospace field.
The kerosene-air detonation is always the core technology and the international problem of a rotary detonation engine, and the energy of direct detonation of kerosene-air mixture is very large and difficult to realize.
Disclosure of Invention
The invention aims to provide an axial oil-supplementing cracking device which has the advantage of realizing kerosene-air detonation.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides an axial oil supplementation cracker, includes the precombustion pyrolysis chamber of both ends opening, the inside of precombustion pyrolysis chamber is fixed with the oil supplementation and spouts the notes mouth, the oil spout direction of oil supplementation and spouts the central axial setting of notes mouth along precombustion pyrolysis chamber, oil supplementation and spout notes mouth and oil supply unit intercommunication.
Through the technical scheme, one end of the pre-combustion cracking chamber is connected to the tail end of the combustion chamber, the other end of the pre-combustion cracking chamber is connected to the rotary detonation engine, when the rotary detonation engine is used, fuel is ignited in the combustion chamber firstly, so that high temperature sprayed out of the combustion chamber enters the pre-combustion cracking chamber, kerosene is sprayed into the pre-combustion cracking chamber along the direction of the central axis of the pre-combustion cracking chamber and towards the end of the combustion chamber through the oil supplementing injection nozzle at the moment, the kerosene sprayed into the pre-combustion cracking chamber is contacted with high-temperature gas sprayed into the pre-combustion cracking chamber in the combustion chamber at the moment, and as kerosene fuel molecules are subjected to a cracking process firstly before oxidative combustion, the kerosene sprayed into the pre-combustion cracking chamber is cracked under the action of high temperature in the pre-combustion cracking chamber, small molecular fuel and active groups are generated, and the initiation energy can be remarkably reduced, so that the initiation energy can be remarkably reduced when the cracked small molecular fuel and the active groups are introduced into the rotary The energy is exploded, the detonation time is shortened, the detonation frequency is improved, and the purpose of utilizing kerosene-air to detonate is achieved. Because the oil supplementing injection nozzle is positioned at the central position of the pre-combustion cracking chamber, the kerosene entering the pre-combustion cracking chamber through the oil supplementing injection nozzle is uniformly distributed in the pre-combustion cracking chamber, and the situation that more kerosene is arranged at one side of the pre-combustion cracking chamber and less kerosene is arranged at one side of the pre-combustion cracking chamber is not easy to occur.
Preferably, an adjusting rod is arranged in the pre-combustion cracking chamber, the axial direction of the adjusting rod is parallel to the central axial direction of the pre-combustion cracking chamber, the oil supplementing injection nozzle is connected to the adjusting rod in a sliding mode, and an adjusting device for adjusting the position of the oil supplementing injection nozzle in the pre-combustion cracking chamber is arranged on the pre-combustion cracking chamber.
Through the technical scheme, because the combustion chamber of different models produces the temperature difference in precombustion cracking chamber, and it is higher to be close to the temperature that the combustion chamber precombustion cracking chamber in more, consequently for making kerosene schizolysis effect better, need adjust the position of oil spout to precombustion cracking chamber according to the model of different combustion chambers, so that the kerosene of spouting into precombustion cracking chamber is in high-efficient cracked temperature section department, through spouting the oil nozzle with mending slip setting on adjusting the pole, the position of oil spout is mended in precombustion cracking chamber in the regulation of can being convenient.
Preferably, the oil supplementing injection nozzle is connected with a supporting disc, and the supporting disc is in sliding connection with the adjusting rod.
Through above-mentioned technical scheme, in order to make the oil supplementation spout the notes mouth and can stably slide, be fixed with the rim plate on the oil supplementation spouts notes mouth, with rim plate sliding connection during the use on adjusting the pole, then change the position of oil supplementation spout notes mouth through the relative motion of rim plate and regulation pole.
Preferably, the number of the adjusting rods is multiple, and the supporting disc is connected with the adjusting rods in a sliding mode.
Through above-mentioned technical scheme, in order to make the oil supplementation spout nozzle more stable when sliding, will adjust the pole and set up to many, a plurality of regulation poles and the branch dish sliding connection back branch dish will gliding more steady, the difficult condition that blocks that appears of branch dish when sliding simultaneously.
Preferably, both ends of the pre-combustion cracking chamber are provided with connecting flanges.
Through above-mentioned technical scheme, conveniently be connected precombustion cracking chamber and combustion chamber and rotatory detonation engine.
Preferably, the connecting flange is connected with a fixing ring through a bolt, and one end of the adjusting rod, which is far away from the pre-combustion cracking chamber, is connected with the fixing ring.
Through the technical scheme, the adjusting rod can be conveniently fixed in the pre-combustion cracking chamber through the fixing ring, the fixing ring is directly fixed on the flange plate during fixing, and the adjusting rod positioned on the fixing ring is fixed in the pre-combustion cracking chamber.
Preferably, the adjusting device comprises a rack arranged on the supporting disc and a gear which is rotatably arranged on the pre-combustion cracking chamber and is meshed with the rack, the length direction of the rack is parallel to the length direction of the adjusting rod, and a gear driving device is arranged outside the pre-combustion cracking chamber.
Through above-mentioned technical scheme, drive gear rotates during the use, and the gear will drive the rack and slide along the axial of adjusting the pole this moment, because the rack is together fixed with the rim plate, consequently the rim plate will remove along with the rack, and then makes the benefit oil injection nozzle of fixing on the rim plate take place to remove, simple and convenient during the regulation.
Preferably, the gear driving device comprises a rotating motor, and an output shaft of the rotating motor penetrates through the pre-combustion cracking chamber and is connected with the gear.
Through above-mentioned technical scheme, when rotatory through rotating motor control gear, control is simple and convenient, can conveniently control gear pivoted angle etc. simultaneously for the oil supplementation nozzle precision is higher when removing.
In summary, compared with the prior art, the beneficial effects of the invention are as follows:
1. kerosene can be cracked and introduced into the rotary detonation engine for combustion, so that the detonation energy can be obviously reduced, the detonation time can be shortened, the detonation frequency can be improved, and the purpose of utilizing kerosene-air to detonate is achieved;
2. because the oil-supplementing injection nozzle is positioned at the central position of the pre-combustion cracking chamber, the purpose of uniformly injecting the kerosene into the pre-combustion cracking chamber can be achieved through one oil-supplementing injection nozzle.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment;
FIG. 2 is a cross-sectional view of the embodiment, mainly highlighting the location of the gears and racks;
fig. 3 shows the structure of the supporting disc and the adjusting lever according to the embodiment.
Reference numerals: 1. a precombustion cracking chamber; 2. an oil-supplementing injection nozzle; 3. adjusting a rod; 4. an adjustment device; 41. a rack; 42. a gear; 5. supporting a disc; 6. a connecting flange; 7. a fixing ring; 8. the motor is rotated.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, an axial oil-supplementing cracking device includes a pre-combustion cracking chamber 1 with two end ports, an oil-supplementing injection nozzle 2 is fixed inside the pre-combustion cracking chamber 1, the injection direction of the oil-supplementing injection nozzle 2 is along the central axial direction of the pre-combustion cracking chamber 1, and the oil-supplementing injection nozzle 2 is communicated with an oil supply device.
Wherein, precombustion cracking chamber 1 is the cylinder tube-shape in this embodiment, all is provided with flange 6 in precombustion cracking chamber 1's both ends through-hole department, and flange 6 can conveniently be connected precombustion cracking chamber 1 with other parts.
As shown in fig. 2 and 3, a fixing ring 7 is fixed on a connecting flange 6 through bolts, the fixing ring 7 is annular, a plurality of adjusting rods 3 are fixed on the fixing ring 7, the axial direction of each adjusting rod 3 is parallel to the central axial direction of the precombustion cracking chamber 1, each adjusting rod 3 is cylindrical, when the fixing ring 7 is fixed on the connecting flange 6, the adjusting rods 3 extend into the precombustion cracking chamber 1, the number of the adjusting rods 3 is four in the embodiment, supporting discs 5 are arranged on the four adjusting rods 3 in a sliding manner, the four adjusting rods 3 are located around the supporting discs 5, and the oil supplementing injection nozzles 2 are fixed at the central positions of the supporting discs 5.
As shown in fig. 1 and 2, a rack 41 is fixed on the supporting disc 5, the rack 41 is in a long strip shape, the length direction of the rack 41 is parallel to the axial direction of the adjusting rod 3, a gear 42 is rotatably arranged in the pre-combustion cracking chamber 1, the gear 42 is meshed with the rack 41, a rotating motor 8 for driving the gear 42 to rotate is arranged outside the pre-combustion cracking chamber 1, when the pre-combustion cracking chamber is used, the rack 41 can be driven to move back and forth by controlling the rotating motor 8 to rotate forward and backward, and then the position of the oil supplementing injection nozzle 2 in the pre-combustion cracking chamber 1 is changed.
In the embodiment, the oil supply device is an oil tank and an oil pump, the oil pump is communicated with the oil supplementing injection nozzle 2, when the device is used, the oil pump leads kerosene in the oil tank into the oil supplementing injection nozzle 2, and along with the increase of the pressure in the oil supplementing injection nozzle 2, oil in the oil supplementing injection nozzle 2 is injected into the pre-combustion cracking chamber 1. In order to lead external oil into the oil supplementing injection nozzle 2 in the pre-combustion cracking chamber 1, a communication pipeline between the oil pump and the oil supplementing injection nozzle 2 penetrates through the pre-combustion cracking chamber 1, and then the pipeline and the pre-combustion cracking chamber 1 are sealed.
The combustion chamber is the existing device, all has the device on aeroengine, and its theory of operation is a shower nozzle and adds an ignition, and during the use, the shower nozzle blowout fuel in the combustion chamber, then ignition will the fuel of shower nozzle blowout can, the fuel will spout in precombustion cracking chamber 1 after burning all the time for there is sufficient temperature confession in the precombustion cracking chamber 1 and not split.
During the use, will precombustion cracking chamber 1 deviates from solid fixed ring 7 end and installs on the combustion chamber, will precombustion cracking chamber 1 remaining solid fixed ring 7 stiff end install on combustion chamber tail end and rotatory detonation engine, then produce high temperature in precombustion cracking chamber 1 through the combustion chamber earlier, then spout kerosene into precombustion cracking chamber 1, the kerosene will carry out the schizolysis in precombustion cracking chamber 1, the material after the schizolysis will get into and burn in the rotatory detonation engine.
Because the pre-combustion cracking chamber 1 is in a high-temperature environment, the articles in the pre-combustion cracking chamber 1 are all made of high-temperature resistant materials.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (7)
1. The utility model provides an axial oil supplementing cracking device which characterized in that: precombustion cracking chamber (1) including both ends opening, the inside of precombustion cracking chamber (1) is fixed with oil supplementation injection nozzle (2), the oil spout direction of oil supplementation injection nozzle (2) sets up along the central axial of precombustion cracking chamber (1), oil supplementation injection nozzle (2) and oil supply unit intercommunication, the injection direction of oil supplementation injection nozzle (2) is towards the combustion chamber end, be provided with in precombustion cracking chamber (1) and adjust pole (3), the axial of adjusting pole (3) and the central axial of precombustion cracking chamber (1) are parallel, oil supplementation injection nozzle (2) sliding connection is on adjusting pole (3), be provided with on precombustion cracking chamber (1) and adjust adjusting device (4) of oil supplementation injection nozzle (2) position in precombustion cracking chamber (1).
2. The axial oil-supplementing cracking device according to claim 1, characterized in that: the oil supplementing injection nozzle (2) is connected with a supporting disc (5), and the supporting disc (5) is connected with the adjusting rod (3) in a sliding mode.
3. The axial oil-supplementing cracking device according to claim 2, characterized in that: the number of the adjusting rods (3) is multiple, and the supporting discs (5) are connected with the adjusting rods (3) in a sliding mode.
4. The axial oil-supplementing cracking device according to claim 3, characterized in that: and connecting flanges (6) are arranged at two ends of the pre-combustion cracking chamber (1).
5. The axial oil-supplementing cracking device according to claim 4, wherein: the connecting flange (6) is connected with a fixing ring (7) through a bolt, and one end of the adjusting rod (3) departing from the pre-combustion cracking chamber (1) is connected with the fixing ring (7).
6. The axial oil-supplementing cracking device according to claim 1, characterized in that: the adjusting device (4) comprises a rack (41) arranged on the supporting disc (5) and a gear (42) which is rotatably arranged on the pre-combustion cracking chamber (1) and meshed with the rack (41), the length direction of the rack (41) is parallel to the length direction of the adjusting rod (3), and a gear driving device is arranged outside the pre-combustion cracking chamber (1).
7. The axial oil-supplementing cracking device according to claim 6, wherein: the gear driving device comprises a rotating motor (8), and an output shaft of the rotating motor (8) penetrates through the pre-combustion cracking chamber (1) and is connected with a gear (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811574890.1A CN109441636B (en) | 2018-12-21 | 2018-12-21 | Axial oil-supplementing cracking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811574890.1A CN109441636B (en) | 2018-12-21 | 2018-12-21 | Axial oil-supplementing cracking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109441636A CN109441636A (en) | 2019-03-08 |
| CN109441636B true CN109441636B (en) | 2020-01-21 |
Family
ID=65534830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811574890.1A Active CN109441636B (en) | 2018-12-21 | 2018-12-21 | Axial oil-supplementing cracking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109441636B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881238B (en) * | 2010-06-10 | 2013-04-17 | 西北工业大学 | Air-breathing pulse detonation engine and detonation method thereof |
| CN204503643U (en) * | 2015-02-04 | 2015-07-29 | 绍兴中多控股有限公司 | Anilox roll cleaning device |
| CN107084071B (en) * | 2017-04-20 | 2018-06-05 | 中国人民解放军国防科学技术大学 | A kind of scramjet engine based on detonating combustion |
| CN107762661B (en) * | 2017-11-27 | 2019-05-10 | 西北工业大学 | A kind of pulse-knocking injection ultra-combustion ramjet combined engine |
| CN108708788B (en) * | 2018-05-29 | 2021-07-02 | 中国人民解放军国防科技大学 | Double-combustion-chamber ramjet engine and hypersonic aircraft |
| CN109030789A (en) * | 2018-08-01 | 2018-12-18 | 湖南云顶智能科技有限公司 | The heating of salt bath kerosene and cracking simulation experiment method |
-
2018
- 2018-12-21 CN CN201811574890.1A patent/CN109441636B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN109441636A (en) | 2019-03-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4741154A (en) | Rotary detonation engine | |
| RU2516769C2 (en) | Intermittent internal combustion gas turbine | |
| US8544280B2 (en) | Continuous detonation wave engine with quenching structure | |
| US9920689B2 (en) | Hybrid wave rotor propulsion system | |
| CN101338702B (en) | Pulse knock rotor spindle engine | |
| CN105156228A (en) | Ejector-assistant turbine-based combined cycle engine | |
| RU164690U1 (en) | PENDULUM-SLIDER DEVICE FOR REACTIVE DETONATION BURNING | |
| RU2013148636A (en) | ENGINE WITH A CLEARING DETONATION WAVE AND AIRCRAFT EQUIPPED WITH SUCH ENGINE | |
| US11674437B2 (en) | Gas turbine power generation device | |
| CN105972638B (en) | A kind of reverse-flow type pulse detonation combustor | |
| CN205047319U (en) | Draw and penetrate auxiliary type turbine punching press combination cycle dynamo | |
| CN109441636B (en) | Axial oil-supplementing cracking device | |
| CN109723578B (en) | Edge distribution plasma cracking activation oil supplementing device and method | |
| CN109695504B (en) | circumferential oil-supplementing cracking device | |
| CN104879238A (en) | Multi-mode pulse detonation engine | |
| RU2620736C1 (en) | Method of organising working process in turbojet engine with continuously-detonating combustion chamber and device for its implementation | |
| CN203730136U (en) | Turbopulse detonation engine | |
| CN104963774A (en) | Novel turbine | |
| CN109723554B (en) | Central distribution plasma cracking activation oil supplementing device and method | |
| CN101718236A (en) | Multitube pulse detonation combustion chamber communicated with jet deflector | |
| CN103726952A (en) | Divided-flow type gas turbine engine | |
| CN106438107A (en) | Blade propeller side jet type aeroengine | |
| Saracoglu et al. | The effects of multiple detonation waves in the RDE flow field | |
| CN2799873Y (en) | Combustion type engine | |
| CN208252231U (en) | A kind of double duct mixing exhaust fanjets of novel microminiature |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |