CN109470504A - A kind of phase shift device and method for electro-arc heater arc root rotation of strengthening communication - Google Patents
A kind of phase shift device and method for electro-arc heater arc root rotation of strengthening communication Download PDFInfo
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- CN109470504A CN109470504A CN201811522255.9A CN201811522255A CN109470504A CN 109470504 A CN109470504 A CN 109470504A CN 201811522255 A CN201811522255 A CN 201811522255A CN 109470504 A CN109470504 A CN 109470504A
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- arc
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- root rotation
- moving device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
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- General Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Discharge Heating (AREA)
- Plasma Technology (AREA)
Abstract
The present invention relates to a kind of phase shift device and methods of electro-arc heater arc root rotation of strengthening communication, and belong to electro-arc heater arc root rotation technique field of strengthening communication.The current direction of alternating current arc arc root is alternation, and the phase shift between arc current and magnetic field is adjusted by way of outer adduction self-excitation, reaches and extends electrode life, reduces the purpose that pollution is heated gas, to realize that the gas of Flow Field in Wind Tunnel is pure.Present invention is mainly applied to the three-phase electrodes of alternating current arc heater, realize AC plasma igniting, reinforce arc root rotation increase service life and reduce pollution etc..
Description
Technical field
The present invention relates to a kind of phase shift device and methods of electro-arc heater arc root rotation of strengthening communication, and belong to reinforcement and hand over
Flow electro-arc heater arc root rotation technique field.
Background technique
The phase moving device of electro-arc heater arc root of strengthening communication rotation is heated applied to space flight ground experiment alternating current arc
In the field coil design of device.In order to extend the service life and minimal pollution heated gas of electrode, it is necessary to make
The arc root high speed rotation being attached on electrode inner surface, other than the method for using cyclone, it is also necessary to use the side of externally-applied magnetic field
Method accelerates arc root to rotate by the direction of air-flow, and general electro-arc heater is direct current supply mode, and major advantage is that controllability is good, leads to
Cross change magnetic field size and Orientation, thus it is possible to vary the direction of arc root rotation and intensity.For direct-current arc heater, pass through
The permanent magnetic field of coil makes arc root, and (cyclone direction) rotation is easily done at same direction, but the electricity of alternating current arc arc root
Flowing direction is alternation, arc root can not be made to rotate at same direction using permanent magnetic field.Meanwhile the alternating magnetic field generated by coil
Induced current is generated on the electrode, and magnetic direction is contrary with coil magnetic field, so electrode interior magnetic field is less than coil magnetic
, while having phase shift between coil magnetic field, cause arc root by the direction phase in electromagnetic force direction and cyclone within certain time
Instead, the rotation of arc root is hindered.
Summary of the invention
Technology of the invention solves the problems, such as: overcome the deficiencies in the prior art, proposes that one kind is strengthened communication electro-arc heater
The phase shift device and method of arc root rotation, the device wind electrode using double cable, realize that magnetic rotation intensity is big, service life
Length facilitates adjusting, meets the needs of various exchange heater free jets of space flight, wind tunnel test.By adjusting coil winding and
Alternating voltage size of current makes electromagnetic force direction identical as cyclone direction, has important meaning to Arc-jet test is completed
Justice.
The technical solution of the invention is as follows:
A kind of phase moving device for electro-arc heater arc root rotation of strengthening communication, which includes three groups of cables, mixing chambers
With three polar arms；Every group of cable is double；
One end of cable is connected with one in three-phase in AC power supply system, the other end be wrapped on polar arm after with exchange
The common ground of power-supply system connects；
Polar arm is plugged on the side of mixing chamber；
The mixing chamber is hollow cylinder；
The cable is high pressure resistant cable；
Polar arm includes internal layer and outer layer, and internal layer and outer layer are hollow cylinder, and internal layer is to be process by red copper, and outer layer is
Stainless steel is process, and cavity is formed between internal layer and outer layer, and cavity has inlet and outlet, is contained with flowing in cavity
Water；
The central axis of three polar arms intersects at a point and the point of the intersection is located on the central axis of mixing chamber.
When polar arm internal diameter is 20mm, the coil winding circle number of every row's cable is 20；
A kind of phase shifting method for electro-arc heater arc root rotation of strengthening communication, the step of this method include:
(1) it is powered using AC power supply system；
(2) striking is carried out by argon gas in three polar arms, is then passed through air in three polar arms.
The winding direction of cable is identical as circle number；
The high-voltage alternating electric current applied in the double cable possesses certain threshold values, makes electromagnetic field and electromagnetic force phase shift
Promote enhancing within the same period.
It is subject to high-voltage alternating electric current in the double cable, alternating magnetic field caused by electric field can make electric arc in polar arm
It is identical as the direction of rotation of heater tangential admission.
The present invention compared with prior art the advantages of it is as follows:
(1) present invention realizes the starting the arc by ac power supply method, and due to being different from direct current starting the arc mode, positive and negative anodes are not present
Directionality problem is subject to sufficiently large electric current in non-wind tunnel test at polar arm three-phase electrode, and moment punctures in electrode
Air, under coil magnetic field and the in the same direction collective effect of rotation gas, electric arc high speed rotation on electrode wall.
(2) present invention is wound by double cable, and commonly exchanges what the single cable of heater polar arm electrode was wound
Magnetic coil is compared, and the magnetic field that double cable coil is formed is stronger, more efficient to the phase shift for reinforcing the rotation of arc root, meanwhile,
When giving alternating current, threshold value setting is more wide in range, is easier to adjust existing phase shift between arc current and magnetic field.
(3) cable field coil is cooled down using high pressure water-cooling pattern in the present invention, is implemented to double cable sufficient
Water cooling reduces electrode erosion, and magnetic field cable coil is connected in series with major loop, saves additional power supply, efficiently utilizes power supply system.
(4) a kind of phase moving device for strengthening communication the rotation of electro-arc heater arc root includes: arc root, cable, electrode, mixing
Room, electric current and magnetic field relationship, in order to extend the service life and minimal pollution heated gas of electrode, it is necessary to make
The arc root high speed rotation being attached on electrode inner surface, other than the method for using cyclone, it is also necessary to use the side of externally-applied magnetic field
Method accelerates arc root to rotate by the direction of air-flow.The current direction of alternating current arc arc root is alternation, passes through the side of outer adduction self-excitation
Formula adjusts the phase shift between arc current and magnetic field, reaches and extends electrode life, reduces the purpose that pollution is heated gas, from
And realize that the gas of Flow Field in Wind Tunnel is pure.Present invention is mainly applied to the three-phase electrodes of alternating current arc heater, realize exchange etc.
Ion ignition reinforces the rotation of arc root and increases service life and reduction pollution etc..
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
As shown in Figure 1, the present invention is made of arc root 1, electric arc 2, double cable 3, mixing chamber 4 and polar arm 5, in three groups of polar arms
3 outer end of double cable on 5 is connected to a wherein phase for three-phase in AC power supply system, by winding after it is another termination by
The power-supply system common ground that mixing chamber 4 is drawn.Its structure is intraformational bed water cooling in polar arm 5, is process by red copper, side has
Tangential admission hole applies protective gas, promotes the rotation of arc root with the electromagnetic force collective effect that double cable 3 is formed.
As shown in Figure 1, double 3 coil of cable winding circle number need to be by calculating 5 internal diameter of polar arm, tangential gas flow amount, alternating current
The factors collective effects such as 4 cavity size of source output power and mixing chamber make the alternating magnetic field generated be no more than phase shift valve
Value guarantees that the phase shift between 2 electric current of electric arc and magnetic field wave crest, trough in same period are in the same direction, reaches electromagnetic force and promote always
Into arc root 1, electric arc 2 with tangential gas rotating Vortex purpose.
Embodiment
A kind of phase moving device for electro-arc heater arc root rotation of strengthening communication, which includes three groups of cables 3, mixing chambers
4 and three polar arms 5；Every group of cable 3 is double；
One end of cable 3 is connected with one in three-phase in AC power supply system, after the other end is wrapped on polar arm 5 and hands over
Flow the common ground connection of power-supply system；
Polar arm 5 is plugged on the side of mixing chamber 4；
The mixing chamber 4 is hollow cylinder；
The cable 3 is high pressure resistant cable；
Polar arm 5 includes internal layer and outer layer, and internal layer and outer layer are hollow cylinder, and internal layer is to be process by red copper, outer layer
It is process for stainless steel, forms cavity between internal layer and outer layer, cavity has inlet and outlet, is contained with stream in cavity
Dynamic water；
The central axis of three polar arms 5 intersects at a point and the point of the intersection is located on the central axis of mixing chamber 4.
When 5 internal diameter of polar arm is 20mm, the coil winding circle number of every row's cable 3 is 20；
A kind of phase shifting method for electro-arc heater arc root rotation of strengthening communication, the step of this method include:
(1) it is powered using AC power supply system；
(2) striking is carried out by argon gas in three polar arms 5, is then passed through air in three polar arms 5.
The winding direction of cable 3 is identical as circle number；
The high-voltage alternating electric current applied in the double cable 3 possesses certain threshold values, makes electromagnetic field and electromagnetic force phase
It moves and promotes enhancing within the same period.
It is subject to high-voltage alternating electric current in the double cable 3, alternating magnetic field caused by electric field can make electric arc 2 in polar arm
It is identical as the direction of rotation of heater tangential admission in 5.
Specific structure explanation of the invention and verification experimental verification all demonstrate the present invention and have the special feature that, are able to satisfy general exchange
The reinforcement requirement of electro-arc heater arc root rotation, in space flight exchange heater test field, tool has been widely used.
Claims (10)
1. a kind of phase moving device for electro-arc heater arc root rotation of strengthening communication, it is characterised in that: the device includes three groups of electricity
Cable (3), mixing chamber (4) and three polar arms (5)；
Three polar arms (5) are both connected to the side of mixing chamber (4)；
Three groups of cables (3) are respectively wound around on the outer surface of three polar arms (5).
2. a kind of phase moving device of electro-arc heater arc root rotation of strengthening communication according to claim 1, feature exist
In: every group of cable (3) is double.
3. a kind of phase moving device of electro-arc heater arc root rotation of strengthening communication according to claim 1, feature exist
In: one end of cable (3) is connected with one in three-phase in AC power supply system, after the other end is wrapped on polar arm (5) and hands over
Flow the common ground connection of power-supply system.
4. a kind of phase moving device of electro-arc heater arc root rotation of strengthening communication according to claim 1, feature exist
In: the mixing chamber (4) is hollow cylinder.
5. a kind of phase moving device of electro-arc heater arc root rotation of strengthening communication according to claim 1, feature exist
In: the cable (3) is high pressure resistant cable, and the winding direction of three groups of cables (3) and circle number are all the same.
6. a kind of phase moving device of electro-arc heater arc root rotation of strengthening communication according to claim 1, feature exist
In: polar arm (5) includes internal layer and outer layer, and internal layer and outer layer are hollow cylinder.
7. a kind of phase moving device of electro-arc heater arc root rotation of strengthening communication according to claim 6, feature exist
In: the internal layer of polar arm (5) is to be process by red copper, and outer layer is process for stainless steel, and cavity is formed between internal layer and outer layer,
Cavity has inlet and outlet, is contained with circulating water in cavity.
8. a kind of phase moving device of electro-arc heater arc root rotation of strengthening communication according to claim 1, feature exist
In: the central axis of three polar arms (5) intersects at a point and the point of the intersection is located on the central axis of mixing chamber (4).
9. a kind of phase moving device of electro-arc heater arc root rotation of strengthening communication according to claim 1, feature exist
In: polar arm (5) internal diameter is 20mm, and the coil winding circle number of every row's cable (3) is 20.
10. a kind of phase shifting method for electro-arc heater arc root rotation of strengthening communication, it is characterised in that the step of this method includes:
(1) it is powered using AC power supply system；
(2) striking is carried out by argon gas in three polar arms (5), is then passed through air in three polar arms (5).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811522255.9A CN109470504A (en) | 2018-12-13 | 2018-12-13 | A kind of phase shift device and method for electro-arc heater arc root rotation of strengthening communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811522255.9A CN109470504A (en) | 2018-12-13 | 2018-12-13 | A kind of phase shift device and method for electro-arc heater arc root rotation of strengthening communication |
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| CN109470504A true CN109470504A (en) | 2019-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811522255.9A Pending CN109470504A (en) | 2018-12-13 | 2018-12-13 | A kind of phase shift device and method for electro-arc heater arc root rotation of strengthening communication |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115683538A (en) * | 2022-11-25 | 2023-02-03 | 中国空气动力研究与发展中心低速空气动力研究所 | Wind tunnel dust environment simulation device and method based on plasma excitation |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6507444A (en) * | 1964-06-11 | 1965-12-13 | ||
| DE2107834A1 (en) * | 1970-03-02 | 1971-09-30 | Westinghouse Electric Corp | Arc heater |
| JPS462239A (en) * | 1970-03-02 | 1971-10-12 | ||
| US4219726A (en) * | 1979-03-29 | 1980-08-26 | Westinghouse Electric Corp. | Arc heater construction with total alternating current usage |
| CA1133588A (en) * | 1977-12-19 | 1982-10-12 | Wallace C. Rudd | Methods and apparatus for heating metal parts with magnetically driven travelling electric arc |
| CN1834614A (en) * | 2006-03-10 | 2006-09-20 | 哈尔滨工业大学 | Artificial ablation testing machine for heat isolating material floor |
| CN201134972Y (en) * | 2007-11-30 | 2008-10-15 | 中国航天空气动力技术研究院 | AC plasma electric arc heater |
| CN101363115A (en) * | 2008-03-21 | 2009-02-11 | 中国科学院金属研究所 | Arc source of rotary magnetron arc ion plating |
-
2018
- 2018-12-13 CN CN201811522255.9A patent/CN109470504A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6507444A (en) * | 1964-06-11 | 1965-12-13 | ||
| DE2107834A1 (en) * | 1970-03-02 | 1971-09-30 | Westinghouse Electric Corp | Arc heater |
| JPS462239A (en) * | 1970-03-02 | 1971-10-12 | ||
| CA1133588A (en) * | 1977-12-19 | 1982-10-12 | Wallace C. Rudd | Methods and apparatus for heating metal parts with magnetically driven travelling electric arc |
| US4219726A (en) * | 1979-03-29 | 1980-08-26 | Westinghouse Electric Corp. | Arc heater construction with total alternating current usage |
| CN1834614A (en) * | 2006-03-10 | 2006-09-20 | 哈尔滨工业大学 | Artificial ablation testing machine for heat isolating material floor |
| CN201134972Y (en) * | 2007-11-30 | 2008-10-15 | 中国航天空气动力技术研究院 | AC plasma electric arc heater |
| CN101363115A (en) * | 2008-03-21 | 2009-02-11 | 中国科学院金属研究所 | Arc source of rotary magnetron arc ion plating |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115683538A (en) * | 2022-11-25 | 2023-02-03 | 中国空气动力研究与发展中心低速空气动力研究所 | Wind tunnel dust environment simulation device and method based on plasma excitation |
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