CN105834175B - Hall thruster discharge channel polluted membrane method for self-cleaning - Google Patents
Hall thruster discharge channel polluted membrane method for self-cleaning Download PDFInfo
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- CN105834175B CN105834175B CN201610251732.7A CN201610251732A CN105834175B CN 105834175 B CN105834175 B CN 105834175B CN 201610251732 A CN201610251732 A CN 201610251732A CN 105834175 B CN105834175 B CN 105834175B
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- cleaning
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2209/00—Details of machines or methods for cleaning hollow articles
- B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
- B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- Plasma Technology (AREA)
Abstract
Hall thruster discharge channel polluted membrane method for self-cleaning is related to a kind of cleaning method of hall thruster discharge channel.In order to solve the problems, such as that existing hall thruster method for self-cleaning is poor for applicability.Including：First, under the action of self-cleaning power supply, the atom of electronics and the propellant injected from gas distributor that anode is moved to gas distributor collides, and generates ionization, generates self-cleaning ion；Then, it controls interior loop or exterior loop independent excitation forms magnetic field, the self-cleaning ion is under the magnetic fields formed by interior loop or exterior loop, bombard the outside wall surface or internal face of discharge channel, the polluted membrane for removing the outside wall surface or internal face that are attached to discharge channel, realizes the self-cleaning of discharge channel polluted membrane.The polluted membrane adhered in 9 internal face of discharge channel and outside wall surface is cleaned without disassembling thruster.
Description
Technical field
The present invention relates to a kind of cleaning method of hall thruster discharge channel, more particularly to a kind of hall thruster electric discharge
Channel polluted membrane method for self-cleaning.
Background technology
Hall thruster belongs to space flight electric propulsion scope, is the Typical Representative of electromagnetic type electric propulsion, has simple in structure, ratio
It leaps high, efficient feature.Its structure is mainly made of energized circuit, cathode, anode, gas distributor and discharge channel.Its
Operation principle is in its discharge channel under the Distribution of Magnetic Field of approximate radial, and the discharge plasma between anode and cathode is logical
The axial electric field being in harmony will be produced from road.Electronics makees circumferential Hall drift motion under electromagnetic field effect, and to anode movement；
Collide with the propellant working medium atom injected from gas distributor during to anode movement and make its ionization formed from
Son, ion, which is accelerated in channel under the action of axial electric field, sprays discharge channel, to form thrust.
Currently, the ground experiment of hall thruster carries out in the vacuum tank of high vacuum, found in experiment, Hall thrust
The ion stream (speed of about 20000m/s) that device exit high speed sprays, which is bombarded to vacuum tank wall surface, can sputter particle, particle meeting
In reflux to discharge channel, it is attached to discharge channel wall surface and anode surface, after hall thruster works hours up to a hundred, electric discharge
One layer of polluted membrane can be formed on channel wall.The polluted membrane of formation influence whether the physical processes such as the ionization of propellant, acceleration with
And the stability of plasma discharge.Therefore, for hall thruster before delivering flight, needing will be at discharge channel surface contamination film
Reason is fallen, but since part uses welding structure, can not disassemble discharge cleaning channel, according to modes such as wipings, when cleaning
Powder be easy to block the outlet aperture (small aperture is usually 0.3-1mm) of gas distributor, cause outlet uneven, influence to put
Electrical property.
In addition, by applicant's application, the patent of invention of Publication No. 102493937A《It can the pollution of self-cleaning discharge channel
The hall thruster and its method for self-cleaning of film》, describe under the action of electric field, the electronics in discharge channel occurs with gas
Collision generates self-cleaning ion, under the magnetic fields that are collectively formed of three coils of hall thruster, bombards discharge channel
Outside wall surface removes the polluted membrane of the outside wall surface or internal face that are attached to discharge channel, completes self-cleaning.And needle in the patent of invention
To specific hall thruster, the number of ampere turns ratio of three coils is adjusted out based on experience value, and then could realize that three coils are total
Diverging or focusing magnetic field are formed with excitation, realizes self-cleaning.So method needs the hall thruster for specific structure, make three
A coil coordinates jointly, if the number of ampere turns of three coils match it is bad if cannot form the magnetic field of special appearance, Jin Erwu
Method accurately controls ion bombardment internal face or outside wall surface, poor for applicability.
Invention content
The purpose of the present invention is to solve the problem that existing hall thruster method for self-cleaning is poor for applicability, the present invention
A kind of hall thruster discharge channel polluted membrane method for self-cleaning is provided.
The hall thruster discharge channel polluted membrane method for self-cleaning of the present invention, including：
First, under the action of self-cleaning power supply, the electronics that anode is moved to gas distributor is noted with from gas distributor
The atom of the propellant entered collides, and generates ionization, generates self-cleaning ion；
Then, it controls interior loop or exterior loop independent excitation forms magnetic field, the self-cleaning ion is by interior loop or outside
Under the magnetic fields that coil is formed, the outside wall surface or internal face of discharge channel are bombarded, removes the outside wall surface for being attached to discharge channel
Or the polluted membrane of internal face, realize the self-cleaning of discharge channel polluted membrane.
The self-cleaning ion is divergent magnetic field in the magnetic field formed by interior loop independent excitation.
In the outside wall surface polluted membrane in discharge cleaning channel, further include：
Discharge current size when adjusting the control cleaning of interior loop size of current, discharge current should be less than declared working condition when cleaning
Under discharge current.
The self-cleaning ion is focusing magnetic field in the magnetic field formed by exterior loop independent excitation.
In the internal face polluted membrane in discharge cleaning channel, further include：
Discharge current size when adjusting the control cleaning of exterior loop size of current, discharge current should be less than declared working condition when cleaning
Under discharge current.
The hall thruster includes gas distributor, anode, cathode, discharge power supply, exterior loop, interior loop, additional wire
Circle, discharge channel and self-cleaning power supply；
At the propellant jet mouth that the gas distributor is arranged in discharge channel, the gas entrance port of gas distributor
It is connected to propellant jet mouth；
The middle part in discharge channel is arranged in the anode, and anode connects the anode of discharge power supply；
In discharge channel exit, cathode connects the cathode of discharge power supply for the cathode setting；
The exterior loop and interior loop are symmetricly set on the both sides in discharge channel exit；
The interpole coil is laterally disposed in parallel in the side of interior loop；
Energized circuit is formed after exterior loop, interior loop and interpole coil energization excitation, forms magnetic field in discharge channel；
The anode connection gas distributor of the self-cleaning power supply, the cathode jointed anode of self-cleaning power supply；Gas distributes
Self-cleaning preionization electric field is formed between device and anode.
The beneficial effects of the present invention are the present invention only needs to utilize a coil：Interior loop or exterior loop clean outer wall
Face or internal face；The present invention need not specially regulating winding the number of turns, so that it may to realize self-cleaning, be suitble to any there is interior loop
Self-cleaning is carried out with the hall thruster of exterior loop, there is universality.Due to the influence without other coils, and in background technology
The method for self-cleaning for three coils of use mentioned is compared, outside wall surface or internal face clean range of the present invention to discharge channel 9
Bigger, and then cleaning performance is more preferable.
Description of the drawings
Fig. 1 is the principle schematic of the hall thruster of energy self-cleaning discharge channel polluted membrane in specific implementation mode；
Fig. 2 is the focusing magnetic field topographic diagram that exterior loop independent excitation is formed；
Fig. 3 is the divergent magnetic field topographic diagram that interior loop independent excitation is formed.
Specific implementation mode
Illustrate present embodiment in conjunction with Fig. 1 to Fig. 3, the hall thruster discharge channel polluted membrane described in present embodiment is certainly
Cleaning method, present embodiment is realized based on hall thruster, as shown in Figure 1, the hall thruster includes gas distribution
Device 1, anode 2, cathode 3, discharge power supply 4, exterior loop 5, interior loop 6, interpole coil 7, discharge channel 9 and self-cleaning power supply 8；
At the propellant A jet ports that the gas distributor 1 is arranged in discharge channel 9, the gas of gas distributor 1 enters
Loophole is connected to propellant A jet ports；
The middle part in discharge channel 9 is arranged in the anode 2, and anode 2 connects the anode of discharge power supply 4；
The setting of the cathode 3 connects the cathode of discharge power supply 4 in 9 exit of discharge channel, cathode 3；
The exterior loop 5 and interior loop 6 are symmetricly set on the both sides in 9 exit of discharge channel；
The interpole coil 7 is laterally disposed in parallel in the side of interior loop 6；
Energized circuit is formed after 7 energization excitation of exterior loop 5, interior loop 6 and interpole coil, magnetic is formed in discharge channel 9
；
The anode connection gas distributor 1 of the self-cleaning power supply 8, the cathode jointed anode 2 of self-cleaning power supply 8；Gas
Self-cleaning preionization electric field is formed between distributor 1 and anode 2.
Self-cleaning power supply 8 uses constant voltage source in present embodiment；
The method for self-cleaning of present embodiment includes the following steps：
Step 1：Preionization generates self-cleaning ion：Under the action of self-cleaning power supply 8, the electrons in discharge channel 9
It is moved from anode 2 to gas distributor 1, and kinetic energy is obtained from self-cleaning preionization electric field；From anode 2 to gas distributor 1
The electrons of movement and the atom of the propellant A injected from gas distributor 1 collide, generate ionization, generate self-cleaning from
Son；
Step 2：Focusing magnetic field that the self-cleaning ion of generation is formed when by 6 independent excitation of exterior loop 5 or interior loop or
Under divergent magnetic field effect, the internal face or outside wall surface of discharge channel 9 are bombarded, removing is attached to 9 internal face of discharge channel or outer wall
The polluted membrane in face, discharge current size when adjusting exterior loop 5 or the control cleaning of 6 size of current of interior loop, discharge current when cleaning
The discharge current under declared working condition is should be less than, realizes the self-cleaning of 9 polluted membrane of discharge channel；
The operation principle of present embodiment：It is carried by the self-cleaning power supply 8 being connected between gas distributor 1 and anode 2
For a constant voltage source, a part of electronics in guiding discharge channel 9 is moved from anode 2 to gas distributor 1, in motion process
In the capacitation from self-cleaning preionization electric field, the high energy electron for obtaining energy can be with the propellant A's injected from gas distributor 1
Atom collides, and generates ionization, generates self-cleaning ion, and the self-cleaning ion of generation is formed by 5 independent excitation of exterior loop
Focusing magnetic field control under the internal face of discharge channel 9 can be bombarded, the focusing magnetic field of formation is as shown in Fig. 2, reach
The purpose of the polluted membrane on internal face is attached to cleaning, under the control of the divergent magnetic field formed by 6 independent excitation of interior loop
The outside wall surface of discharge channel 9 can be bombarded, the divergent magnetic field of formation is attached to outside wall surface as shown in figure 3, reaching cleaning
On polluted membrane purpose.
The pollution that the method for self-cleaning of present embodiment can adhere in 9 internal face of self-cleaning discharge channel and outside wall surface
Film is cleared up without disassembling thruster, so that experimental rig vacuum condition is consistent, is avoided and easily cause in disassembly process
Rigging error, prevents from ressembling and produces bigger effect；Present embodiment is based on the characteristics of magnetic line of force equipotential, i.e. ion acceleration
Direction is spent perpendicular to magnetic line of force direction, it is proposed that the method for self-cleaning discharge channel polluted membrane passes through preionization measure and adjusting
Exciting current changes magnetic field configuration control ionic fluid direction, the method to realize self-cleaning, and hall thruster structure is not necessarily to
It changes, by 6 independent excitation of exterior loop 5 or interior loop, is respectively formed focusing magnetic field and divergent magnetic field, realization is to internal face and outside
The bombardment and cleaning of wall surface.
The method for self-cleaning of present embodiment applies also for other hall thrusters with interior loop and exterior loop.
As shown in Figures 2 and 3, the focusing magnetic field topographic diagram and interior loop independent excitation that exterior loop independent excitation is formed are formed
Divergent magnetic field topographic diagram, compared with the invention disclosed patent mentioned in background technology forms magnetic field configuration figure, self-cleaning from
The outer inclined or interior inclined angle bigger of son, the then range cleaned are wider.
Claims (3)
1. a kind of hall thruster discharge channel polluted membrane method for self-cleaning, the method is realized based on hall thruster, method
Including：
First, under the action of self-cleaning power supply (8), the electronics that anode (2) is moved to gas distributor (1) is distributed with from gas
The atom of the propellant (A) of device (1) injection collides, and generates ionization, generates self-cleaning ion；
It is characterized in that, then, control interior loop (6) or exterior loop (5) independent excitation forms magnetic field, and the self-cleaning ion exists
Under the magnetic fields formed by interior loop (6) or exterior loop (5), the outside wall surface or internal face of bombardment discharge channel (9) are removed attached
The polluted membrane of the outside wall surface or internal face in discharge channel (9), realizes the self-cleaning of discharge channel (9) polluted membrane；
The self-cleaning ion is divergent magnetic field in the magnetic field formed by interior loop (6) independent excitation；
In the outside wall surface polluted membrane of discharge cleaning channel (9), further include：
Discharge current size when adjusting the control cleaning of interior loop (6) size of current, discharge current should be less than declared working condition when cleaning
Under discharge current；
The self-cleaning ion is focusing magnetic field in the magnetic field formed by exterior loop (5) independent excitation；
In the internal face polluted membrane of discharge cleaning channel (9), further include：
Discharge current size when adjusting the control cleaning of exterior loop (5) size of current, discharge current should be less than declared working condition when cleaning
Under discharge current.
2. hall thruster discharge channel polluted membrane method for self-cleaning according to claim 1, which is characterized in that it is described suddenly
You include gas distributor (1), anode (2), cathode (3), discharge power supply (4), exterior loop (5), interior loop (6), put thruster
Electric channel (9) and self-cleaning power supply (8)；
At propellant (A) jet port that the gas distributor (1) is arranged in discharge channel (9), the gas of gas distributor (1)
Body entrance port is connected to propellant (A) jet port；
The middle part that the anode (2) is arranged in discharge channel (9), anode (2) connect the anode of discharge power supply (4)；
In discharge channel (9) exit, cathode (3) connects the cathode of discharge power supply (4) for cathode (3) setting；
The exterior loop (5) and interior loop (6) are symmetricly set on the both sides in discharge channel (9) exit；
Energized circuit is formed after exterior loop (5) and interior loop (6) energization excitation, forms magnetic field in discharge channel (9)；
The anode connection gas distributor (1) of the self-cleaning power supply (8), the cathode jointed anode (2) of self-cleaning power supply (8)；
Self-cleaning preionization electric field is formed between gas distributor (1) and anode (2).
3. hall thruster discharge channel polluted membrane method for self-cleaning according to claim 2, which is characterized in that it is described suddenly
Your thruster further includes interpole coil (7), and the interpole coil (7) is laterally disposed in parallel in the side of interior loop (6), exterior loop
(5), energized circuit is formed after interior loop (6) and interpole coil (7) energization excitation, forms magnetic field in discharge channel (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610251732.7A CN105834175B (en) | 2016-04-21 | 2016-04-21 | Hall thruster discharge channel polluted membrane method for self-cleaning |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610251732.7A CN105834175B (en) | 2016-04-21 | 2016-04-21 | Hall thruster discharge channel polluted membrane method for self-cleaning |
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| Publication Number | Publication Date |
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| CN105834175A CN105834175A (en) | 2016-08-10 |
| CN105834175B true CN105834175B (en) | 2018-09-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105889005B (en) * | 2016-04-19 | 2018-09-07 | 哈尔滨工业大学 | The compression fit method of magnetic focusing type hall thruster and the thruster with buffering cavity configuration |
| CN113357109B (en) * | 2021-06-30 | 2022-07-15 | 哈尔滨工业大学 | Ignition device of radio frequency ion thruster |
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| US6919672B2 (en) * | 2002-04-10 | 2005-07-19 | Applied Process Technologies, Inc. | Closed drift ion source |
| CN201217686Y (en) * | 2008-06-03 | 2009-04-08 | 西安工业大学 | Ionic beam emission source capable of emitting singular ion energy |
| CN102345101A (en) * | 2010-08-04 | 2012-02-08 | 中国科学院金属研究所 | Method for plating inner surface of long tube through arc ion plating with magnetic field and electric field enhancement |
| CN102493937A (en) * | 2011-12-15 | 2012-06-13 | 哈尔滨工业大学 | Hall thrustor capable of realizing self cleaning of polluted membrane of discharge channel and self cleaning method of Hall thrustor |
| CN102493936A (en) * | 2011-12-15 | 2012-06-13 | 哈尔滨工业大学 | Hall thrustor based on magnetic focusing |
| CN102953035A (en) * | 2012-11-02 | 2013-03-06 | 温州职业技术学院 | Multi-mode atternation coupling magnetic field assisted electrical arc ion plating deposition arc source apparatus |
-
2016
- 2016-04-21 CN CN201610251732.7A patent/CN105834175B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6919672B2 (en) * | 2002-04-10 | 2005-07-19 | Applied Process Technologies, Inc. | Closed drift ion source |
| CN201217686Y (en) * | 2008-06-03 | 2009-04-08 | 西安工业大学 | Ionic beam emission source capable of emitting singular ion energy |
| CN102345101A (en) * | 2010-08-04 | 2012-02-08 | 中国科学院金属研究所 | Method for plating inner surface of long tube through arc ion plating with magnetic field and electric field enhancement |
| CN102493937A (en) * | 2011-12-15 | 2012-06-13 | 哈尔滨工业大学 | Hall thrustor capable of realizing self cleaning of polluted membrane of discharge channel and self cleaning method of Hall thrustor |
| CN102493936A (en) * | 2011-12-15 | 2012-06-13 | 哈尔滨工业大学 | Hall thrustor based on magnetic focusing |
| CN102953035A (en) * | 2012-11-02 | 2013-03-06 | 温州职业技术学院 | Multi-mode atternation coupling magnetic field assisted electrical arc ion plating deposition arc source apparatus |
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