CN109779864A - A kind of hall thruster supply air line insulation system - Google Patents
A kind of hall thruster supply air line insulation system Download PDFInfo
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- CN109779864A CN109779864A CN201910181449.5A CN201910181449A CN109779864A CN 109779864 A CN109779864 A CN 109779864A CN 201910181449 A CN201910181449 A CN 201910181449A CN 109779864 A CN109779864 A CN 109779864A
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- pipeline
- insulator
- positioning section
- supply air
- air line
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Abstract
A kind of hall thruster supply air line insulation system, belongs to hall thruster technical field.The present invention solves existing hall thruster in the case where limited space, and supply air line and storage are limited for the connection between system, and easy the problem of failure of insulation occurs.It includes gas distributor pipeline, insulation subshell, insulator porcelain and storage for system pipeline, the L-shaped structure of the insulation subshell and its inside offer L shape inner cavity, the one end of gas distributor pipeline is affixed with the one end of insulation subshell and is connected to setting with its inner cavity, offer central through hole on the insulator porcelain, the storage is for affixed by the insulator porcelain between system pipeline and the other end for the subshell that insulate and be connected to.
Description
Technical field
The present invention relates to a kind of hall thruster supply air line insulation systems, belong to hall thruster technical field.
Background technique
Hall thruster has that structure is simple, thrust is bigger, efficiency and reliability is more high relative to other propulsion devices
Advantage, by the theoretical research and practical application of many decades, foreign countries are to hall thruster engineering chemistry database and design very
It is mature.Currently, China, which is in, greatly develops the electric propulsion technology stage, for research of the hall thruster in terms of engineer application
Work is still in infancy, and is guaranteed the safety of hall thruster electric insulation among these and then is guaranteed that its high reliability is extremely
An important step.Different with design from the expensive electrical equipment insulation research of the length to work under atmospheric environment, hall thruster is as one
The special electrical equipment of kind of work under high vacuum environment, plasma environment, very due to the mean free path charged in vacuum
Greatly, the research of electric insulation is also more becomed privileged with design.And in small-power hall thruster engineer application, thruster one
As be placed in above satellite, and supply and can only enter from side, therefore due to the limitation of real space, often do not have between pipeline
Sufficient space linearly connects, thus change pipeline space connection direction be also solve the problems, such as insufficient space method it
One, at the same time, there are many gas circuit and circuit that hall thruster needs to connect, if insulation is made not good enough, in plasma
Under environment facilitation, the failure of insulation of gas circuit and circuit is easier to occur.
Summary of the invention
The present invention is to solve existing hall thruster in the case where limited space, and supply air line and storage are for system
Between connection it is limited, and the problem of failure of insulation easily occurs, and then provide a kind of hall thruster supply air line insulation
Structure.
Used technical solution is the present invention to solve above-mentioned technical problem:
A kind of hall thruster supply air line insulation system, it includes gas distributor pipeline, insulation subshell, insulator
Ceramics and storage for system pipeline, the L-shaped structure of the insulation subshell and its inside offer L shape inner cavity, gas distributor
The one end of pipeline is affixed with the one end of insulation subshell and is connected to setting with its inner cavity, offers on the insulator porcelain
Central through hole, the storage is for and company affixed by the insulator porcelain between system pipeline and the other end for the subshell that insulate
It is logical.
Further, the material of the insulation subshell is ceramic sealing alloy.
Further, affixed by argon arc welding between the gas distributor pipeline and the insulation subshell.
Further, between the insulation subshell and the insulator porcelain, insulator porcelain and storage are for system pipeline
Between by be brazed it is affixed.
Further, the insulation subshell includes the first positioning section, the second positioning section and link block, first positioning
Section and second positioning section are cylindrical section, and the link block is cube structure, and L shape through-hole is offered in link block,
First positioning section and the second positioning section are respectively and fixedly connected on two sides adjacent on link block, and two with L shape through-hole respectively
End connection setting, gas distributor pipeline are connected to setting with the first positioning section, and storage, which is connected to for system pipeline with the second positioning section, to be set
It sets.
Further, the inside of the first positioning section and the inside of the second positioning section are shoulder hole structure, gas distributor
One end of pipeline and one end of insulator porcelain are plugged in respectively in two stepped holes on insulation subshell.
Further, the insulator porcelain is " convex " shape cylinder segment structure, and smaller diameter end is plugged in the second positioning section
Stepped hole in.
Further, the hole inside insulator porcelain is stepped hole, and the one end store for system pipeline is plugged in insulator
In the stepped hole of ceramics.
The present invention has the effect that compared with prior art
When there is space size limitation, using supply air line insulation system of the invention, allow pipeline in specified sky
Between lateral redundant space made full use of by the change direction of an angle of 90 degrees degree " L " type, reduce the problem that space restriction band is come to the greatest extent.
And by connecting insulator shell and insulator porcelain, it can also effectively prevent failure of insulation bring a series of problems.This
Apply for that structure is simple, manufacturing cost is low.
Detailed description of the invention
Fig. 1 is schematic perspective view of the invention；
Fig. 2 is main cross-sectional schematic diagram of the invention.
Specific embodiment
Specific embodiment 1: illustrating present embodiment, a kind of hall thruster supply air line insulation knot in conjunction with Fig. 1,2
Structure, it includes gas distributor pipeline 1, insulation subshell 2, insulator porcelain 3 and storage for system pipeline 4, the insulator
The L-shaped structure of shell 2 and its inside offer L shape inner cavity 5, the one of the one end of gas distributor pipeline 1 and insulation subshell 2
End is affixed and setting is connected to its inner cavity, central through hole 6 is offered on the insulator porcelain 3, the storage is for system pipeline 4
It is affixed and be connected to by the insulator porcelain 3 between the other end of insulation subshell 2.Gas distributor pipeline 1 is used for
The supply air line interface of high potential is connected, the supply air line interface for being used to connect low potential for 4 port of system pipeline is store.Do not having
When space limits, hall thruster pipeline and connection do not have to spatially be changed, straight line connection.When there is space
When size limits, using supply air line insulation system of the invention, pipeline is allowed to pass through an angle of 90 degrees degree " L " in designated space
The change direction of type makes full use of lateral redundant space, reduces the problem that space restriction band is come to the greatest extent.And pass through connection insulation
Subshell 2 and insulator porcelain 3 can also effectively prevent failure of insulation bring a series of problems.The application structure is simple, system
It makes at low cost.
The material of the insulation subshell 2 is ceramic sealing alloy.Ceramic sealing alloy and ceramics have identical heat expansion within 400 degree
Coefficient, can be by soldering connection, but gas distributor pipeline 1 is connect with hall thruster, and engine is in gas point
What orchestration pipeline 1 had just assembled before connecting with insulation subshell 2, therefore gas distributor pipeline 1 and insulation subshell 2
It cannot be brazed before, and gas distributor pipeline 1 is metal structure, so insulation subshell 2 is designed as metal structure, to realize
Welding in the case where not dismantling engine between gas distributor pipeline 1.The structure of L-type is " mountain " more in the prior art
For type structure, the argon arc welding be more convenient between metal and metal.
It is affixed by argon arc welding between the gas distributor pipeline 1 and the insulation subshell 2.
Between the insulation subshell 2 and the insulator porcelain 3, insulator porcelain 3 and storage between system pipeline 4
It is affixed by being brazed.
The insulation subshell 2 includes the first positioning section 7, the second positioning section 8 and link block 9, first positioning section 7 with
Second positioning section 8 is cylindrical section, and the link block 9 is cube structure, and L shape through-hole is offered in link block 9, the
One positioning section 7 and the second positioning section 8 are respectively and fixedly connected on two sides adjacent on link block 9, and two with L shape through-hole respectively
End connection setting, gas distributor pipeline 1 are connected to setting with the first positioning section 7, and storage connects for system pipeline 4 and the second positioning section 8
Logical setting.L shape inner cavity 5 on insulation subshell 2 is to be formed by inner cavity after two positioning sections are connected to L shape through-hole.It is square
The link block 9 of body structure is convenient for the fixation of hall thruster supply air line insulation system.
The inside of first positioning section 7 and the inside of the second positioning section 8 are shoulder hole structure, gas distributor pipeline 1
One end and one end of insulator porcelain 3 are plugged in respectively in two stepped holes on insulation subshell 2.By the way that stepped hole is arranged,
Convenient for gas distributor pipeline 1 and storage for system pipeline 4 positioning and welding.Meanwhile the one end quilt of gas distributor pipeline 1
In L-shaped insulation subshell 2 is wrapped in by stepped hole, the charged particle in plasma space is reduced to high potential and high electric field
Insulator at intensity and then reduces the generation of " the exhausted edge flashing of vacuum " mechanism development process initiating electron along the bombardment in face,
Improve dielectric strength.
The insulator porcelain 3 is " convex " shape cylinder segment structure, and smaller diameter end is plugged in the stepped hole of the second positioning section 8
It is interior.
Central through hole 6 inside insulator porcelain 3 is stepped hole, and the one end store for system pipeline 4 is plugged in insulator
In the stepped hole of ceramics 3.Insulator porcelain 3 is connected with storage for 4 end of system pipeline by the way of " package ", so that high electric field
Intensity distribution concentrates on the metal supply air line marginal position in 3 outside of insulator dielectric ceramics, and insulator is finally effectively reduced
Inside electric-field intensity distribution, and then its dielectric strength is effectively increased for " low pressure breakdown " failure of insulation mechanism.
Claims (8)
1. a kind of hall thruster supply air line insulation system, it is characterised in that: it includes gas distributor pipeline (1), insulation
Subshell (2), insulator porcelain (3) and storage for system pipeline (4), the L-shaped structure of the insulation subshell (2) and its inside
Offer L shape inner cavity (5), the one end of gas distributor pipeline (1) and the one end of insulation subshell (2) it is affixed and in it
Chamber connection is arranged, and offers central through hole (6) on the insulator porcelain (3), described to store outside for system pipeline (4) and insulator
And connection affixed by the insulator porcelain (3) between the other end of shell (2).
2. a kind of hall thruster supply air line insulation system according to claim 1, it is characterised in that: the insulator
The material of shell (2) is ceramic sealing alloy.
3. a kind of hall thruster supply air line insulation system according to claim 2, it is characterised in that: the gas point
It is affixed by argon arc welding between orchestration pipeline (1) and the insulation subshell (2).
4. a kind of hall thruster supply air line insulation system according to claim 2 or 3, it is characterised in that: described exhausted
Between edge subshell (2) and the insulator porcelain (3), insulator porcelain (3) and storage for passing through pricker between system pipeline (4)
Solid welding connects.
5. a kind of hall thruster supply air line insulation system according to claim 4, it is characterised in that: the insulator
Shell (2) includes the first positioning section (7), the second positioning section (8) and link block (9), first positioning section (7) and described second
Positioning section (8) is cylindrical section, and the link block (9) is cube structure, and L shape through-hole is offered in link block (9), and first
Positioning section (7) and the second positioning section (8) are respectively and fixedly connected on two sides adjacent on link block (9), and respectively with L shape through-hole
Both ends be connected to setting, gas distributor pipeline (1) is connected to setting with the first positioning section (7), and storage is for system pipeline (4) and second
Positioning section (8) connection setting.
6. a kind of hall thruster supply air line insulation system according to claim 5, it is characterised in that: the first positioning section
(7) inside of inside and the second positioning section (8) is shoulder hole structure, one end of gas distributor pipeline (1) and insulator
The one end of ceramic (3) is plugged in respectively in two stepped holes in insulation subshell (2).
7. a kind of hall thruster supply air line insulation system according to claim 6, it is characterised in that: the insulator
Ceramic (3) are " convex " shape cylinder segment structure, and smaller diameter end is plugged in the stepped hole of the second positioning section (8).
8. according to claim 1, a kind of hall thruster supply air line insulation system, feature described in 2,3,5,6 or 7 exist
In: the internal central through hole (6) of insulator porcelain (3) is stepped hole, and the one end store for system pipeline (4) is plugged in insulator
In the stepped hole of ceramic (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910181449.5A CN109779864B (en) | 2019-03-11 | 2019-03-11 | Hall thruster air supply pipeline insulation structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910181449.5A CN109779864B (en) | 2019-03-11 | 2019-03-11 | Hall thruster air supply pipeline insulation structure |
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| Publication Number | Publication Date |
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| CN109779864A true CN109779864A (en) | 2019-05-21 |
| CN109779864B CN109779864B (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910181449.5A Active CN109779864B (en) | 2019-03-11 | 2019-03-11 | Hall thruster air supply pipeline insulation structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357113A (en) * | 2021-07-02 | 2021-09-07 | 兰州空间技术物理研究所 | Air supply and insulation integrated structure of space electric thruster |
| CN114458565A (en) * | 2022-04-12 | 2022-05-10 | 国科大杭州高等研究院 | Air path partial pressure insulation method of Hall thruster air supply pipeline and application thereof |
| CN114458564A (en) * | 2022-04-12 | 2022-05-10 | 国科大杭州高等研究院 | Hall thruster ring type partial pressure gas path insulation structure |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88102177A (en) * | 1987-04-23 | 1988-11-02 | 休斯航空公司 | Spacecraft with thrust modulated electrostatic ion thrusters and related methods |
| DE102008015824A1 (en) * | 2008-03-27 | 2009-10-01 | Henri Dr. Wagner | Plasma accelerator i.e. pulsed gas-operating magneto-dynamic plasma accelerator, ignition method for space vehicle, involves utilizing radiation of radioactive substance for release of ignition, where radiation consists of emitted electrons |
| CN104114862A (en) * | 2011-12-29 | 2014-10-22 | 奥尼拉(国家宇航研究所) | Plasma thruster and method for generating a plasma propulsion thrust |
| CN105840444A (en) * | 2016-04-07 | 2016-08-10 | 哈尔滨工业大学 | Electrical insulation structure for Hall thruster air supply pipeline |
-
2019
- 2019-03-11 CN CN201910181449.5A patent/CN109779864B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88102177A (en) * | 1987-04-23 | 1988-11-02 | 休斯航空公司 | Spacecraft with thrust modulated electrostatic ion thrusters and related methods |
| DE102008015824A1 (en) * | 2008-03-27 | 2009-10-01 | Henri Dr. Wagner | Plasma accelerator i.e. pulsed gas-operating magneto-dynamic plasma accelerator, ignition method for space vehicle, involves utilizing radiation of radioactive substance for release of ignition, where radiation consists of emitted electrons |
| CN104114862A (en) * | 2011-12-29 | 2014-10-22 | 奥尼拉(国家宇航研究所) | Plasma thruster and method for generating a plasma propulsion thrust |
| CN105840444A (en) * | 2016-04-07 | 2016-08-10 | 哈尔滨工业大学 | Electrical insulation structure for Hall thruster air supply pipeline |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357113A (en) * | 2021-07-02 | 2021-09-07 | 兰州空间技术物理研究所 | Air supply and insulation integrated structure of space electric thruster |
| CN113357113B (en) * | 2021-07-02 | 2022-08-26 | 兰州空间技术物理研究所 | Air supply and insulation integrated structure of space electric thruster |
| CN114458565A (en) * | 2022-04-12 | 2022-05-10 | 国科大杭州高等研究院 | Air path partial pressure insulation method of Hall thruster air supply pipeline and application thereof |
| CN114458564A (en) * | 2022-04-12 | 2022-05-10 | 国科大杭州高等研究院 | Hall thruster ring type partial pressure gas path insulation structure |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN109779864B (en) | 2021-10-29 |
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