CN106014900B - A kind of gas distributor of hall thruster/anode integral structure - Google Patents
A kind of gas distributor of hall thruster/anode integral structure Download PDFInfo
- Publication number
- CN106014900B CN106014900B CN201610599709.7A CN201610599709A CN106014900B CN 106014900 B CN106014900 B CN 106014900B CN 201610599709 A CN201610599709 A CN 201610599709A CN 106014900 B CN106014900 B CN 106014900B
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- China
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- level
- anode
- chamber
- gas distributor
- hall thruster
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03H—PRODUCING A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03H1/00—Using plasma to produce a reactive propulsive thrust
- F03H1/0087—Electro-dynamic thrusters, e.g. pulsed plasma thrusters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03H—PRODUCING A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03H1/00—Using plasma to produce a reactive propulsive thrust
- F03H1/0006—Details applicable to different types of plasma thrusters
- F03H1/0012—Means for supplying the propellant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03H—PRODUCING A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03H1/00—Using plasma to produce a reactive propulsive thrust
- F03H1/0037—Electrostatic ion thrusters
- F03H1/0062—Electrostatic ion thrusters grid-less with an applied magnetic field
- F03H1/0075—Electrostatic ion thrusters grid-less with an applied magnetic field with an annular channel; Hall-effect thrusters with closed electron drift
Abstract
A kind of gas distributor of hall thruster/anode integral structure belongs to hall thruster field, and the present invention is solves the problems, such as that nearby neutral gas is unevenly distributed for hall thruster gas distributor venthole reaming and anode.The present invention includes anode and gas distributor, and gas distributor is two-stage cushion chamber, and the lower face of level 2 buffering chamber is coaxially fixed together with the upper surface of first-level buffer chamber by laser welding mode；Multiple radial direction ventholes are circumferentially evenly arranged on the outer circle side wall of level 2 buffering chamber；Radial direction venthole is concordant with the radial center position of hall thruster discharge channel；Venthole baffle plate setting is on the radially outwardly extending anchor ring of the upper surface of level 2 buffering chamber；Anode is the circular ring structure for the upper surface for being arranged on first-level buffer chamber, and anode and first-level buffer chamber are integrated structure；It is engraved structure in the middle part of the circular side wall of anode, and circumferential hollow out angle is more than the range of the half of whole circumference；It is arranged at the top of anode in zero field region of hall thruster.
Description
Technical field
The invention belongs to hall thruster fields.
Background technology
Hall thruster (Hall Effect Thruster, abbreviation HET) is that a kind of utilization crossed electric and magnetic field is ionized and added
Fast atom working medium, converts electrical energy into ion kinetic energy, obtains the electric thruster compared with high specific impulse.It has it is simple in structure, than leaping high,
The features such as efficient, long working life, power density be high, in-orbit active time is long, gesture stability suitable for all kinds of spacecrafts,
Orbital exponent, Orbit Transformation, power compensation, position keep, reposition, the processing that leaves the right or normal track, interplanetary probe and interplanetary flight etc. are appointed
Business is at present in the world using at most most ripe electric propulsion system.
Anode is important composition component in hall thruster ontology, is responsible for reception electronics, forms the important of discharge loop
Function.And gas distributor effect is evenly distributed to entering neutral gas working medium in thruster discharge channel, makes neutrality
Gas atom is full of discharge channel.For in the research of hall thruster, gas distributor outlet position, outlet speed are found,
Anode position etc. in magnetic field influences its performance apparent.In addition, it is long-term experimental studies have found that, hall thruster long-time work
After work, different degrees of reaming phenomenon can occur under electron bombardment in gas distributor venthole, this can be caused in its circumferential direction
Property gas atom is unevenly distributed, and is had an adverse effect to its discharge process.
Invention content
The invention aims to solve neutral gas near hall thruster gas distributor venthole reaming and anode
Be unevenly distributed problem, provide it is a kind of change gas distributor structure, and with the incorporated scheme of anode.
The gas distributor of a kind of hall thruster of the present invention/anode integral structure, including anode and gas point
Orchestration, the gas distributor buffer cavity configuration for two-stage, and gas distributor includes first-level buffer chamber and level 2 buffering chamber, level-one
Cushion chamber and level 2 buffering chamber are the circle ring chamber structure of longitudinal axis rectangular cross-section, the lower face of level 2 buffering chamber and level-one
The upper surface of cushion chamber is coaxially fixed together by laser welding mode, the internal diameter phase of first-level buffer chamber and level 2 buffering chamber
Outer diameter Deng, first-level buffer chamber is more than the outer diameter of level 2 buffering chamber；The lower face of first-level buffer chamber sets an axial admission hole,
The upper surface of first-level buffer chamber has been uniformly arranged in the circumferential direction multiple axial ventholes, and axial venthole enables first-level buffer chamber and two
Grade cushion chamber connection；Multiple radial direction ventholes are circumferentially evenly arranged on the outer circle side wall of level 2 buffering chamber；Radial direction venthole
It is concordant with the radial center position of hall thruster discharge channel；
Venthole baffle plate setting is on the radially outwardly extending anchor ring of the upper surface of level 2 buffering chamber；
Anode is the circular ring structure for the upper surface for being arranged on first-level buffer chamber, and anode and first-level buffer chamber are integrated knot
Structure；It is engraved structure in the middle part of the circular side wall of anode, and circumferential hollow out angle is more than the range of the half of whole circumference；Sun
It is arranged at the top of pole in zero field region of hall thruster.
Preferably scheme is：The lower face of first-level buffer chamber is fixed by several thread pillars and discharge channel bottom,
And axial admission hole is located in one of in thread pillar.
Preferably scheme is：Engraved structure in the middle part of the circular side wall of anode is multiple strips, circle, diamond shape or triangle
The pore structure of shape.
Preferably scheme is：The material of anode and gas distributor is metal molybdenum or magnetism-free stainless steel.
Advantages of the present invention：The present invention, which increases radial direction venthole top, increases baffle arrangement, can effectively reduce electronics pair
The bombardment of gas distributor venthole is corroded.Meanwhile anode combination is installed at the top of gas distributor, the two integration can be with
Simplify mounting structure, and its top is placed in zero field regions, experimental verification can effectively improve thruster ionization performance.Its middle-jiao yang, function of the spleen and stomach
The structure of large area hollow out is used in the middle part of polar ring, it is ensured that neutral gas atoms can be by engraved structure, in anode circular rector two
Side is uniformly distributed.Experiment effect proves that this structure effectively improves ionization performance, final to improve thruster overall performance.
Description of the drawings
Fig. 1 is that a kind of stereochemical structure of gas distributor/anode integral structure of hall thruster of the present invention is shown
It is intended to；
Fig. 2 is the longitudinal axis cross-sectional view of Fig. 1；
Fig. 3 is the dimensional structure diagram after Fig. 1 longitudinal axis is cut.
Specific embodiment
Specific embodiment one：Illustrate present embodiment, a kind of Hall described in present embodiment with reference to Fig. 1 to Fig. 3
The gas distributor of thruster/anode integral structure, including anode 1 and gas distributor, the gas distributor is two-stage
Cavity configuration is buffered, gas distributor includes first-level buffer chamber 2 and level 2 buffering chamber 3, and first-level buffer chamber 2 and level 2 buffering chamber 3 are equal
For the circle ring chamber structure of longitudinal axis rectangular cross-section, the lower face and the upper surface of first-level buffer chamber 2 of level 2 buffering chamber 3 pass through
Laser welding mode is coaxially fixed together, and first-level buffer chamber 2 is equal with the internal diameter of level 2 buffering chamber 3, outside first-level buffer chamber 2
Diameter is more than the outer diameter of level 2 buffering chamber 3；The lower face of first-level buffer chamber 2 sets an axial admission hole 2-1, first-level buffer chamber 2
Upper surface be uniformly arranged in the circumferential direction multiple axial venthole 2-2, and axial direction venthole 2-2 enables first-level buffer chamber 2 and two level
Cushion chamber 3 connects；Multiple radial direction venthole 3-1 are circumferentially evenly arranged on the outer circle side wall of level 2 buffering chamber 3；Radial direction outlet
Hole 3-1 is concordant with the radial center position of hall thruster discharge channel；
Venthole baffle 3-2 is arranged on the radially outwardly extending anchor ring of the upper surface of level 2 buffering chamber 3；
Anode 1 is the circular ring structure for the upper surface for being arranged on first-level buffer chamber 2, and anode 1 and first-level buffer chamber 2 are integrated
Part structure；It is engraved structure in the middle part of the circular side wall of anode 1, and circumferential hollow out angle is more than the model of the half of whole circumference
It encloses；The top of anode 1 is arranged in zero field region of hall thruster.
The lower face of first-level buffer chamber 2 is fixed by several thread pillars and discharge channel bottom, and axial admission hole
2-1 is located in one of in thread pillar.
Engraved structure in the middle part of the circular side wall of anode 1 is the pore structure of multiple strips, circle, diamond shape or triangle.
Anode 1 is anode ring, and the middle part large area of anode ring is hollow out, anode ring and gas distributor level 2 buffering chamber
3 are processed as one structure.Anode has engraved structure, ensures that gas can permeate into entire electric discharge from gas distributor ejiction opening and lead to
In road, the uniformity is improved.
Radial direction venthole 3-1 is located at channel central diameter, when radial direction venthole 3-1 is arranged on the outer circle side of level 2 buffering chamber 3
When on wall, outlet rushes at the outer shroud internal face of discharge channel, when radial direction venthole 3-1 is arranged on the inner circle side of level 2 buffering chamber 3
When on wall, outlet rushes at the inner ring internal face of discharge channel, and venthole baffle 3-2, mesh are set above radial direction venthole 3-1
Be in order to avoid electron bombardment aperture generates reaming effect, cause outlet uneven.
The present invention is in installing and using, and position cooperates with zero magnetic field position in magnetic field configuration and adjusts at the top of anode ring
It is whole, ensure that purpose in zero field region, is done so at the top of anode ring to be to improve the ionization performance of thruster.This structure is whole
By welding thread pillar in gas distributor bottom, discharge channel bottom is fixed on, that is, gas distributor bottom is put down when installing
Face is overlapped with discharge channel bottom plane.
The present embodiment by taking the gas distributor of 2.5kW Krypton working medium hall thrusters and anode integral structure as an example,
Isometric view is as shown in Figure 1, anode ring is located at gas distributor crown center position, internal diameter 83, outer diameter 87, thickness
2mm, height 12.5mm, hollow out position height are 3mm~7.5mm, circumferential symmetrical four positions of hollow out, single hole hollow out angle
It is 60 °, integral circumferential hollow out 2/3rds.Gas distributor inner and outer ring identity distance is from ceramic discharge channel inner and outer rings internal face
1mm.3 external venthole of level 2 buffering chamber radially, to discharge channel outer shroud internal face outlet, 3 internal diameter of level 2 buffering chamber and one
Grade cushion chamber 2 is consistent, and radial direction venthole 3-1 is maintained at discharge channel immediate vicinity, the height 5mm of level 2 buffering chamber 3.In Fig. 2
Venthole baffle 3-2 extends outwardly 2mm along the upper end of level 2 buffering chamber 3.
Claims (4)
1. a kind of gas distributor of hall thruster and anode integral structure, which is characterized in that including anode (1) and gas
Distributor, the gas distributor buffer cavity configuration for two-stage, and gas distributor includes first-level buffer chamber (2) and level 2 buffering chamber
(3), first-level buffer chamber (2) and level 2 buffering chamber (3) are the circle ring chamber structure of longitudinal axis rectangular cross-section, level 2 buffering chamber
(3) lower face and the upper surface of first-level buffer chamber (2) are coaxially fixed together by laser welding mode, first-level buffer chamber
(2) and the internal diameter of level 2 buffering chamber (3) is equal, and the outer diameter of first-level buffer chamber (2) is more than the outer diameter of level 2 buffering chamber (3)；Level-one
The lower face of cushion chamber (2) sets an axial admission hole (2-1), and the upper surface of first-level buffer chamber (2) is uniformly arranged in the circumferential direction
There are multiple axial ventholes (2-2), and axial venthole (2-2) enables first-level buffer chamber (2) be connected with level 2 buffering chamber (3)；Two
Multiple radial direction ventholes (3-1) are circumferentially evenly arranged on the outer circle side wall of grade cushion chamber (3)；Radial direction venthole (3-1) with
The radial center position of hall thruster discharge channel is concordant；
Venthole baffle (3-2) is arranged on the radially outwardly extending anchor ring of the upper surface of level 2 buffering chamber (3)；
Anode (1) is the circular ring structure for the upper surface for being arranged on level 2 buffering chamber (3), and anode (1) and level 2 buffering chamber (3) are
One piece configuration；Be engraved structure in the middle part of the circular side wall of anode (1), and circumferential hollow out angle be more than whole circumference two/
One range；It is arranged at the top of anode (1) in zero field region of hall thruster.
2. a kind of gas distributor of hall thruster and anode integral structure according to claim 1, which is characterized in that
The lower face of first-level buffer chamber (2) is fixed by several thread pillars and discharge channel bottom, and axial admission hole (2-1) position
In in one of thread pillar.
3. a kind of gas distributor of hall thruster and anode integral structure according to claim 1, which is characterized in that
Engraved structure in the middle part of the circular side wall of anode (1) is the pore structure of multiple strips, circle, diamond shape or triangle.
4. a kind of gas distributor of hall thruster and anode integral structure according to claim 1, which is characterized in that
The material of anode (1) and gas distributor is metal molybdenum or magnetism-free stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610599709.7A CN106014900B (en) | 2016-07-27 | 2016-07-27 | A kind of gas distributor of hall thruster/anode integral structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610599709.7A CN106014900B (en) | 2016-07-27 | 2016-07-27 | A kind of gas distributor of hall thruster/anode integral structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106014900A CN106014900A (en) | 2016-10-12 |
| CN106014900B true CN106014900B (en) | 2018-07-06 |
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| CN201610599709.7A Active CN106014900B (en) | 2016-07-27 | 2016-07-27 | A kind of gas distributor of hall thruster/anode integral structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107165793A (en) * | 2017-06-12 | 2017-09-15 | 北京航空航天大学 | A kind of electric propulsion engine gas distributor |
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| CN106837722B (en) * | 2016-11-29 | 2019-01-08 | 上海空间推进研究所 | A kind of hall thruster using lightweight integration anode |
| CN108799032A (en) * | 2018-05-03 | 2018-11-13 | 兰州空间技术物理研究所 | Anode assemblies and preparation method thereof based on porous metal material |
| CN108953088A (en) * | 2018-08-07 | 2018-12-07 | 金群英 | A kind of novel hall thruster |
| CN109026580A (en) * | 2018-08-07 | 2018-12-18 | 柳盼 | A kind of delivery method of Hall thruster gaseous propellant |
| CN108953087A (en) * | 2018-08-07 | 2018-12-07 | 金群英 | A kind of Hall thruster including multiple air storage chambers |
| CN111219305B (en) * | 2019-03-21 | 2021-06-15 | 哈尔滨工业大学 | Hall thruster with buffer cavity |
| CN110566424B (en) * | 2019-05-24 | 2020-10-20 | 北京控制工程研究所 | Magnetic circuit of long-life hall thruster |
| CN110307132B (en) * | 2019-05-24 | 2020-09-18 | 北京控制工程研究所 | Hall thruster positioning structure for improving gas uniformity |
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| CN110439770B (en) * | 2019-07-24 | 2020-06-19 | 北京航空航天大学 | Anode layer Hall thruster of deep integrated hollow cathode |
| CN111900069B (en) * | 2020-06-09 | 2023-01-31 | 哈尔滨工业大学 | Ion source magnetic conduction anode gas supply device integrated structure |
| CN113438786B (en) * | 2021-05-17 | 2022-12-06 | 中国科学院国家空间科学中心 | Device for collecting space thermal plasma |
| CN114139304B (en) * | 2021-11-13 | 2024-04-05 | 国科大杭州高等研究院 | Design method of double-cavity anode gas supply ring structure of Hall thruster |
| CN114017274B (en) * | 2021-11-24 | 2022-08-05 | 哈尔滨工业大学 | Hall thruster outer magnetic pole protection cover plate |
| CN114412740B (en) * | 2022-02-25 | 2022-11-01 | 哈尔滨工业大学 | Axisymmetric air inlet structure of Hall thruster |
| CN115283867A (en) * | 2022-07-21 | 2022-11-04 | 上海蓝箭鸿擎科技有限公司 | Method for assembling an anode distributor for an electrically propelled gas |
| CN115163440A (en) * | 2022-08-03 | 2022-10-11 | 哈尔滨工业大学 | Hall thruster anode structure for solid working medium |
| CN115681055A (en) * | 2023-01-03 | 2023-02-03 | 国科大杭州高等研究院 | Compact gas distributor and Hall thruster |
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Cited By (2)
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| CN107165793B (en) * | 2017-06-12 | 2019-10-01 | 北京航空航天大学 | A kind of electric propulsion engine gas distributor |
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| Publication number | Publication date |
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| CN106014900A (en) | 2016-10-12 |
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Application publication date: 20161012 Assignee: Shanghai Lanjian Hongqing Technology Co., Ltd. Assignor: HARBIN INSTITUTE OF TECHNOLOGY Contract record no.: X2022230000063 Denomination of invention: A gas distributor/anode integrated structure of a Hall thruster Granted publication date: 20180706 License type: Exclusive License Record date: 20220729 |