CN109723554A - A kind of central distribution plasma pyrolysis activation recharging oil device and method - Google Patents
A kind of central distribution plasma pyrolysis activation recharging oil device and method Download PDFInfo
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- CN109723554A CN109723554A CN201811573561.5A CN201811573561A CN109723554A CN 109723554 A CN109723554 A CN 109723554A CN 201811573561 A CN201811573561 A CN 201811573561A CN 109723554 A CN109723554 A CN 109723554A
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Abstract
The present invention relates to a kind of central distribution plasma pyrolysis activation recharging oil device and methods, pre-burning cracking room including both ends port and the plasma controlling chamber for being connected to pre-burning cracking room one end, repairing spray mouth is provided in the pre-burning cracking room, the repairing spray mouth is connected to fueller, and the plasma controlling chamber central axis is provided with discharging structure.The small molecule fuel gas and active group reactivity with higher formed after pre-burning cracking and plasma body cooperative cracking, initiation energy can be significantly reduced when therefore these small molecule fuel and active group after cracking being passed through in rotation detonation engine, shortens the burst time, improve detonation frequency, achieve the purpose that realization liquid fuel-air detonation.
Description
Technical field
The present invention relates to the technical fields of aero-engine, activate more particularly, to a kind of central distribution plasma pyrolysis
Recharging oil device and method.
Background technique
With the high speed development of aerospace cause, high-performance is promoted and is increasingly increased with the demand of dynamical system, and
Promote the design parameter for being also related to aircraft with the performance indicator of dynamical system.In order to improve the performance of propulsion system, use
Efficient burning tissue and energy utilization mode become the important means in research.Conventional motive system, such as turbogenerator and fire
Arrow engine etc. is all by the way of isobaric combustion, and cycle efficieny is lower.Combustion system is in addition to detonation, and there are also the appearances such as approximation
Knocking combustion mode.Studies have shown that detonating combustion efficiency of thermal cycle is higher, energy density height is released, heat release rate is exceedingly fast.Based on this
Reason detonation engine has obtained more and more concerns, also achieves rapid progress, and be provided with work in aerospace field
Cheng Yingyong.
And kerosene-air detonation is always to rotate the core technology and international headache of detonation engine, kerosene-air mixing
The energy of object direct initiation is very big, is difficult to realize.
Summary of the invention
The first object of the present invention is to provide a kind of plasma-activated recharging oil device of central distribution have and coal can be achieved
The advantages of oil-air detonation.
Above-mentioned first purpose of the invention has the technical scheme that a kind of central distribution plasma
It activates recharging oil device, pre-burning cracking room including both ends port and is connected to pre-burning cracking room one end and is connected to pre-burning cracking room
Plasma controlling chamber, repairing spray mouth is provided in the pre-burning cracking room, the repairing spray mouth and fueller connect
It is logical, it is provided with discharging structure in the plasma controlling chamber, the discharging structure includes high-field electrode and low-field electrode, described
Low-field electrode includes the metal bump being arranged in plasma regulation chamber interior walls, and the high-field electrode includes being arranged in plasma
Body controlling chamber center and the conductive rod being axially arranged along plasma controlling chamber.
Through the above technical solutions, pre-burning cracking room one end is connected to combustion chamber tail end, it is quick-fried that the other end is connected to rotation
Engine charge front end is shaken, in use, first fuel is lighted in a combustion chamber, so that the high-temperature gas that combustion chamber sprays enters pre-burning
Cracking room sprays into kerosene into pre-burning cracking room by repairing spray mouth at this time, therefore in the effect of pre-burning cracking room high temperature
Lower to crack the kerosene sprayed into pre-burning cracking room, the product after making cracking later is regulated and controled by plasma
Room, the plasma in plasma controlling chamber and thermal cracking products further occurrence cracking reaction at this time, and split by pre-burning
The small molecule fuel gas and active group formed after solution and plasma body cooperative cracking can significantly improve fuel activity, therefore
Small molecule fuel and active group after these are cracked can significantly reduce initiation energy, contracting when being passed through in rotation detonation engine
The short burst time improves detonation frequency, achievees the purpose that realization kerosene-air detonation.In use, in metal bump and conductive rod
Between generate plasma.
Preferably, the quantity of the metal bump is circumferential direction of multiple and multiple metal bumps along plasma controlling chamber
Uniformly distributed, multiple metal bumps are identical as the distance between conductive rod.
Through the above technical solutions, make the arcing distance between conductive rod and metal bump identical so that wait from
The plasma generated in sub- controlling chamber is more uniform, and then can carry out better plasma to the product after Pintsch process
Cracking.
Preferably, fixed plate is connected on the conductive rod, the fixed plate is fixed on plasma controlling chamber away from pre-
One end of cracking room is fired, is provided with several through-holes in the fixed plate.
Conductive rod is fixed on plasma controlling chamber centre bit through the above technical solutions, can facilitate by fixed plate
It sets, makes distance of the conductive rod apart from metal bump top consistent everywhere, so that the electric discharge between conductive rod and metal bump is more
It can meet the requirements.
Preferably, the fixed plate is removably connected on plasma controlling chamber, and the plasma controlling chamber is removable
It unloads and is connected on pre-burning cracking room, between the fixed plate and plasma controlling chamber and plasma controlling chamber is split with pre-burning
Solution is provided with insulation spacer between room.
Through the above technical solutions, due to electric discharge when, fixed plate is high-field electrode, thus in order to avoid in fixed plate with
Electric discharge phenomena are generated between connecting flange is provided with insulation spacer between connecting flange and fixed plate, and conductive rod in use
It will discharge to metal bump, therefore will lead to plasma controlling chamber and also charge, and be split by plasma controlling chamber with pre-burning
Insulation spacer between solution room can be transferred on pre-burning cracking room to avoid electric current, so that pre-burning cracking room is not easily susceptible to put
The influence of electricity.
Preferably, the insulation spacer includes ceramic gasket.
Through the above technical solutions, ceramic gasket good insulating in use and long service life.
Preferably, plasma controlling chamber both ends are provided with the first connecting flange.
Plasma controlling chamber and pre-burning cracking room and rotation detonation engine are connected through the above technical solutions, facilitating
It connects.
Preferably, the pre-burning cracking room and plasma controlling chamber connecting pin are provided with the second connecting flange, and described the
One connecting flange is connect with the second connecting flange, and the insulation spacer is between the first connecting flange and the second connecting flange.
Plasma controlling chamber is connect with pre-burning cracking room through the above technical solutions, facilitating, while by insulation spacer
It is not easy to fall when being fixed between the first connecting flange and the second connecting flange, plasma controlling chamber and pre-burning cracking room rise
To preferable insulation effect.
Preferably, the fixed plate is fixed on the first connecting flange, and the insulation spacer is located at the first connecting flange
Between fixed plate.
Through the above technical solutions, fixed plate is not susceptible to fall off when fixed plate fixed by the first connecting flange, simultaneously
Fixed plate is not susceptible to shake in use.
The second object of the present invention is to provide a kind of cracking method method living, has and the excellent of kerosene-air detonation can be achieved
Point.
Above-mentioned second purpose of the invention has the technical scheme that a kind of cracking method method living, packet
Include following steps:
Step 1: hot environment is created in pre-burning cracking room；
Step 2: waiting temperature in pre-burning cracking room to spray into fuel in pre-burning cracking room after increasing, and carries out high anneal crack to fuel
Solution；
Step 3: the fuel after making Pintsch process is passed through plasma controlling chamber, will be to high temperature by discharging the plasma formed
Fuel after cracking is activated, and then is regulated and controled to the distribution of the fuel element after cracking.
In conclusion the present invention having the beneficial effect that in contrast to the prior art
1, kerosene can be cracked and is passed through in rotation detonation engine and carry out detonating combustion, detonation energy can be significantly reduced
Amount shortens the burst time, improves detonation frequency, achievees the purpose that realization kerosene-air detonation；
2, by the synergistic effect of pre-burning combustion gas fuel factor and plasma chemistry effect, kerosene is cracked into the combustion of small molecule gaseous state
Material significantly reduces initiation energy.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the first cross-sectional view of embodiment one, the structure of main prominent metal bump and conductive rod；
Fig. 2 is the second cross-sectional view of embodiment one, the position of main prominent through-hole.
Appended drawing reference: 1, pre-burning cracking room；2, repairing spray mouth；3, plasma controlling chamber；4, metal bump；5, conductive
Stick；6, fixed plate；7, through-hole；8, the first connecting flange；9, the second connecting flange；10, insulation spacer；11, combustion chamber.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
As shown in Figure 1, 2, the plasma-activated recharging oil device of a kind of central distribution, the pre-burning cracking room including both ends port
1 be connected to the plasma controlling chamber 3 of 1 one end of pre-burning cracking room, repairing spray mouth 2 is provided in pre-burning cracking room 1,
Discharging structure is provided in plasma controlling chamber 3, wherein repairing spray mouth 2 is connected to fueller.
3 shape of plasma controlling chamber is the hollow cylindrical of both ends port, in the end positions of plasma controlling chamber 3
It is provided with the first connecting flange 8, the first connecting flange 8, which can facilitate, is connected to plasma controlling chamber 3 with other component.
As shown in Figure 1, 2, wherein pre-burning cracking room 1 is cylindrical tube shape, is arranged in the both ends passage port of pre-burning cracking room 1
Have with consistent second connecting flange 9 of 8 structure of the first connecting flange, by the second connecting flange 9 can facilitate pre-burning cracking room 1 with
Combustion chamber 11 and plasma controlling chamber 3 connect.The jet of repairing spray mouth 2 is located inside pre-burning cracking room 1, repairing spray
Nozzle 2 can be for one or multiple, more uniform its purpose is to spray into the oil in pre-burning cracking room 1.
Discharging structure includes high-field electrode and low-field electrode, and when electric discharge will generate etc. between high-field electrode and low-field electrode
Gas ions, distance of the discharge end of the present embodiment mesohigh electrode apart from low-field electrode are 3 ~ 5 millimeters.
As shown in Figure 1, 2, the present embodiment mesolow electrode includes that the metal that is arranged on 3 inner wall of plasma controlling chamber is convex
4 are played, high-field electrode includes the conductive rod 5 being arranged in plasma controlling chamber 3.Metal bump 4 is around plasma controlling chamber 3
Inner wall even distribution have multiple, conductive rod 5 is located at the center of plasma controlling chamber 3, and conductive rod 5 is by 4 ring of metal bump
Around, on conductive rod 5 be provided at 4 face of metal bump to 4 side of metal bump protrude convex block, it is convex with metal by convex block
It plays 4 cooperation to facilitate and discharge between high-field electrode and low-field electrode, distance of the convex block apart from each metal bump 4 is homogeneous
Together.
As shown in Figure 1, 2, wherein 5 one end of conductive rod is provided with fixed plate 6,6 material of fixed plate is metal and shape is
Plate, fixed plate 6 is fixed on plasma controlling chamber 3 on first connecting flange 8 of one end of pre-burning cracking room 1, the
It is provided with insulation spacer 10 between one connecting flange 8 and fixed plate 6, is made after being cracked in plasma controlling chamber 3 for convenience
Fuel enter rotation detonation engine in, several through-holes 7 are provided in fixed plate 6.Later period by the first connecting flange 8 with
Plasma controlling chamber 3 and pre-burning cracking room 1 are connected with each other by the second connecting flange 9, and are connected in the first connecting flange 8 and second
Insulation spacer 10 is also equipped between acting flange 9, while after connecting plasma controlling chamber 3 with rotation detonation engine,
Fixed plate 6 will be located between the first connecting flange 8 and rotation detonation engine, at this time in fixed plate 6 and rotation detonation engine
Between be also equipped with insulation spacer 10.
Wherein, insulation spacer 10 includes ceramic gasket.
Fueller is fuel tank and oil pump in the present embodiment, and oil pump is connected to repairing spray mouth 2, in use, oil pump will be oily
Kerosene in case leads in repairing spray mouth 2, and then the kerosene in repairing spray mouth 2 will spray into pre-burning cracking room 1.
Combustion chamber 11 is existing apparatus, the device is all had in aero-engine, in use, the spray head in combustion chamber 11
Fuel, the ignited fuel that then igniter sprays spray head are sprayed, fuel will spray into pre- after burning in combustion chamber 11
It fires in cracking room 1, so that there is enough temperature coal supply oil-breakings in pre-burning cracking room 1.
In use, 1 one end of pre-burning cracking room is mounted on 11 tail end of combustion chamber, plasma controlling chamber 3 is connected to rotation
Turn on detonation engine, then first passes through combustion chamber 11 and generate high temperature in pre-burning cracking room 1, then into pre-burning cracking room 1
Spray into kerosene, kerosene will crack in pre-burning cracking room 1, the substance after cracking will enter in plasma controlling chamber 3 into
Row plasma pyrolysis cracks kerosene finally by the synergistic effect of pre-burning combustion gas fuel factor and plasma chemistry effect
At small molecule fuel gas, these small molecule fuel gas, which will enter in rotation detonation engine, carries out detonating combustion.
Due to being hot environment in pre-burning cracking room 1 and plasma controlling chamber 3, be located at pre-burning cracking room 1 with etc.
Component materials in gas ions controlling chamber 3 are heat-resisting material.
Embodiment two:
A kind of cracking method method living, it is characterised in that: the following steps are included:
Step 1: hot environment is created in pre-burning cracking room 1；
Step 2: waiting temperature in pre-burning cracking room 1 to spray into fuel in pre-burning cracking room 1 after increasing, and carries out high temperature to fuel
Cracking；
Step 3: the fuel after making Pintsch process is passed through plasma controlling chamber 3, will be to high temperature by discharging the plasma formed
Fuel after cracking is activated, and then is regulated and controled to the distribution of the fuel element after cracking.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (9)
1. a kind of plasma-activated recharging oil device of central distribution, it is characterised in that: the pre-burning cracking room (1) including both ends port
With the plasma controlling chamber (3) for being connected to pre-burning cracking room (1) one end and being connected to pre-burning cracking room (1), the pre-burning is split
It is provided with repairing spray mouth (2) in solution room (1), the repairing spray mouth (2) is connected to fueller, the plasma regulation
Discharging structure is provided in room (3), the discharging structure includes high-field electrode and low-field electrode, and the low-field electrode includes setting
Metal bump (4) on plasma controlling chamber (3) inner wall, the high-field electrode include being arranged in plasma controlling chamber
(3) center and the conductive rod (5) being axially arranged along plasma controlling chamber.
2. the plasma-activated recharging oil device of a kind of central distribution according to claim 1, it is characterised in that: the metal
The quantity of raised (4) is that multiple and multiple metal bumps (4) are uniformly distributed along the circumferential direction of plasma controlling chamber (3), multiple metals
Raised (4) are identical as the distance between conductive rod (5).
3. the plasma-activated recharging oil device of a kind of central distribution according to claim 1, it is characterised in that: the conduction
It is connected on stick (5) fixed plate (6), the fixed plate (6) is fixed on plasma controlling chamber (3) away from pre-burning cracking room (1)
One end, be provided with several through-holes (7) on the fixed plate (6).
4. the plasma-activated recharging oil device of a kind of central distribution according to claim 3, it is characterised in that: the fixation
Plate (6) is removably connected on plasma controlling chamber (3), and the plasma controlling chamber (3) is removably connected to pre-burning and splits
It solves on room (1), between the fixed plate (6) and plasma controlling chamber (3) and plasma controlling chamber (3) is cracked with pre-burning
Insulation spacer (10) are provided between room (1).
5. the plasma-activated recharging oil device of a kind of central distribution according to claim 4, it is characterised in that: the insulation
Gasket (10) includes ceramic gasket.
6. the plasma-activated recharging oil device of a kind of central distribution according to claim 4, it is characterised in that: it is described it is equal from
Daughter controlling chamber (3) both ends are provided with the first connecting flange (8).
7. the plasma-activated recharging oil device of a kind of central distribution according to claim 4, it is characterised in that: the pre-burning
Cracking room (1) and plasma controlling chamber (3) connecting pin are provided with the second connecting flange (9), first connecting flange (8) with
Second connecting flange (9) connection, the insulation spacer (10) is between the first connecting flange (8) and the second connecting flange (9).
8. the plasma-activated recharging oil device of a kind of central distribution according to claim 6, it is characterised in that: the fixation
Plate (6) is fixed on the first connecting flange (8), and the insulation spacer (10) is located at the first connecting flange (8) and fixed plate (6)
Between.
9. a kind of cracking method method living, it is characterised in that: the following steps are included:
Step 1: hot environment is created in pre-burning cracking room (1)；
Step 2: it waits after temperature increases in pre-burning cracking room (1) and sprays into fuel in pre-burning cracking room (1), fuel is carried out
Pintsch process；
Step 3: the fuel after making Pintsch process is passed through plasma controlling chamber, will be to high temperature by discharging the plasma formed
Fuel after cracking is activated, and then is regulated and controled to the distribution of the fuel element after cracking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811573561.5A CN109723554B (en) | 2018-12-21 | 2018-12-21 | Central distribution plasma cracking activation oil supplementing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811573561.5A CN109723554B (en) | 2018-12-21 | 2018-12-21 | Central distribution plasma cracking activation oil supplementing device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109723554A true CN109723554A (en) | 2019-05-07 |
| CN109723554B CN109723554B (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811573561.5A Active CN109723554B (en) | 2018-12-21 | 2018-12-21 | Central distribution plasma cracking activation oil supplementing device and method |
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| CN (1) | CN109723554B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963273A (en) * | 2021-03-03 | 2021-06-15 | 中国人民解放军空军工程大学 | Self-air-entraining kerosene pre-combustion cracking activation device and method for concave cavity flame stabilizer |
| CN114001376A (en) * | 2021-11-23 | 2022-02-01 | 中国人民解放军空军工程大学 | Gas collection cavity plasma activation explosion-assisted rotary detonation combustion chamber |
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| CN101881238A (en) * | 2010-06-10 | 2010-11-10 | 西北工业大学 | Air-breathing pulse detonation engine and detonation method thereof |
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| CN101761940A (en) * | 2009-12-15 | 2010-06-30 | 上海中科清洁能源技术发展中心 | Non-equilibrium thermodynamics plasma igniting and combustion-supporting device |
| CN101881238A (en) * | 2010-06-10 | 2010-11-10 | 西北工业大学 | Air-breathing pulse detonation engine and detonation method thereof |
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Non-Patent Citations (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963273A (en) * | 2021-03-03 | 2021-06-15 | 中国人民解放军空军工程大学 | Self-air-entraining kerosene pre-combustion cracking activation device and method for concave cavity flame stabilizer |
| CN114001376A (en) * | 2021-11-23 | 2022-02-01 | 中国人民解放军空军工程大学 | Gas collection cavity plasma activation explosion-assisted rotary detonation combustion chamber |
| CN114001376B (en) * | 2021-11-23 | 2023-03-14 | 中国人民解放军空军工程大学 | Gas collection cavity plasma activation explosion-assisted rotary detonation combustion chamber |
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| CN109723554B (en) | 2020-07-31 |
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