CN201134972Y - AC plasma electric arc heater - Google Patents
AC plasma electric arc heater Download PDFInfo
- Publication number
- CN201134972Y CN201134972Y CNU2007201905073U CN200720190507U CN201134972Y CN 201134972 Y CN201134972 Y CN 201134972Y CN U2007201905073 U CNU2007201905073 U CN U2007201905073U CN 200720190507 U CN200720190507 U CN 200720190507U CN 201134972 Y CN201134972 Y CN 201134972Y
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Abstract
An alternating current plasma electro-arc heater comprises six poles, a magnetic field coil, air inlet rings and a mixing chamber, wherein the six poles are equally divided in space, mutually form 60 degrees, and are connected with the mixing chamber through flanges to form a star shape structure, the root portion of each pole is respectively left with an air inlet ring, the magnetic field coil is wound outside the poles, the six poles are divided into two groups, and are respectively connected with three phases A, B, C of an industrial frequency alternating current power supply to form six electro-arcs. The utility model adopts the three-phase alternating current power supply as a power source, increases the power utilization, and reduces cost. The star structure which is formed by the six poles is adopted to form two groups of star type loads which are formed by the six electro-arcs, thereby realizing the large power operation of the heater under smaller electro-arc current bearing on each pole, reducing the burning loss of the heater to the poles, overcoming the effect of air whirl to flow field parameters, and realizing the stable operation of the alternating current plasma electro-arc heater in large power, large flow, high voltage and low middle enthalpy and long time.
Description
Technical field
The utility model relates to a kind of plasma-arc heater, relates in particular to a kind of AC plasma electro-arc heater, can be applied to fields such as pneumatic hot ground simulation test of aircraft or chemical industry, smelting, electric power.
Background technology
The plasma-arc heater is to utilize the plasma-arc heated air to produce high temp jet or flow field, have that temperature range is wide, the advantage of concentration of energy, the temperature regulating range hundreds of is adjustable to up to ten thousand degrees centigrade, be mainly used in the pneumatic hot ground simulation test of aircraft, the elevated temperature heat environment that the simulated flight device flies and faced aloft.The plasma-arc heater claims plasma arc torch again, and its distinctive high-temperature behavior also is widely used in the boiler coal-ash igniting and reaches industrial circles such as steady combustion, extraordinary waste incineration, harmful waste processing, metal smelt cutting.
Both at home and abroad in the pneumatic thermal technology research field of aircraft, mainly be to utilize the direct current plasma electro-arc heater at present, the major technique form has tubular type, long segmented, the stacked and steady formula of magnetic.Be characterized in that its power supply all is a DC power supply, construction cost is higher, and is low to the utilance of power supply, generally can only reach about 50% the power utilization rate.In industrial application, homemade plasma arc torch mainly is a direct current hot cathode type.The AC plasma electro-arc heater is not used widely for a long time, mainly is that the multinomial technical barrier of high-power AC plasma electro-arc heater of stable operation need overcome.
The utility model content
Technology of the present utility model is dealt with problems and is: overcome the deficiencies in the prior art, a kind of AC plasma electro-arc heater is provided, adopt the three-phase alternating-current supply power supply, improved the power utilization rate, reduced cost;
The technical problem that the utility model further solves is: the star structure of being made up of six electrodes, realize the high-power operation of heater, reduced the scaling loss of heater to electrode, overcome the influence of cyclone stream field parameter, realized high-power, the big flow of AC plasma electro-arc heater, high pressure, in low enthalpy, long-time efficient stable operation.
The technical solution of the utility model is: a kind of AC plasma electro-arc heater comprises: six electrodes, field coil, air inlet ring and mixing chambers, six electrodes are mutually 60 ° at the locus five equilibrium, six electrodes and mixing chamber adopt flange to be connected to form star structure, six electrode roots respectively leave an air inlet ring, field coil is wrapped in the outside of six electrodes, and six electrodes connect two groups of three-phase alternating-current supplies and form six plasma-arcs.
Described six electrodes are tubulose, adopt inside and outside cover interlayer structure.
Described mixing chamber is a hollow circular, adopts inside and outside cover interlayer structure.
Described field coil adopts red copper lenticular wire or water-cooled copper tube.
Described three-phase alternating-current supply supply power voltage is 10KV.
Operation principle of the present utility model is: working gas through the air inlet ring cutting of electrode root to the inside that enters the plasma-arc heater, AC power is ionized into plasma with working gas, inner surface at electrode forms the swirling eddy that certain speed distributes, make plasma-arc be stable at the center of electrode, one end of plasma-arc is the inner surface that the arc root is attached to electrode, the other end of plasma-arc is under the responsive to axial force of swirling eddy, pull to the center of mixing chamber, form the star load loop.
The utility model advantage compared with prior art is as follows:
(1) the utility model adopts three-phase alternating-current supply as power supply, has improved the power utilization rate, has reduced cost.
(2) star structure of the utility model by adopting six electrodes to form, two groups of " star formula " loads that formation is made up of six electric arcs, bearing on each electrode under the situation of small arc electric current, realize the high-power operation of heater, reduced the scaling loss of heater to electrode, overcome the influence of cyclone stream field parameter, realized high-power, the big flow of AC plasma electro-arc heater, high pressure, in low enthalpy, long-time efficient stable operation.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the utility model 40MW alternating current arc heater enthalpy-pressure performance diagram.
Embodiment
Below in conjunction with accompanying drawing and the concrete example of implementing the utility model is described in detail:
A kind of high-power AC plasma electro-arc heater comprises six electrodes, field coil, air inlet ring and mixing chamber, six electrodes are mutually 60 ° at the locus five equilibrium and adopt flange to be connected to form star structure with mixing chamber, six electrodes adopt identical structure, root at each electrode respectively leaves an air inlet ring, field coil is wrapped in the outside of each electrode, connects two groups of three-phase alternating-current supplies during six electrode work.During the work of AC plasma electro-arc heater, working gas through the air inlet ring cutting of each electrode root to the inside that enters the AC plasma electro-arc heater, three-phase alternating-current supply is ionized into plasma with working gas, inner surface at each electrode forms the swirling eddy that certain speed distributes, make plasma-arc be stable at the center of electrode, one end of plasma-arc is the inner surface that the arc root is attached to electrode, the other end of plasma is under the responsive to axial force of swirling eddy, pull to the center of mixing chamber, form the star load loop, field coil is used for quickening the arc root and rotates by airflow direction, reduced the scaling loss of arc root, made the AC plasma electro-arc heater can long-time steady operation electrode.
Each electrode design is a tubulose, bore and length of tube are mainly determined according to the size of arc current and gas flow, length is 200-800mm, and diameter is 20-55mm, and thickness of pipe wall is 5-8mm, electrode adopts inside and outside cover interlayer structure to be used for Forced water cooling, the neglecting mixing chamber pressure size greatly of hydraulic pressure and decide, generally cooling water pressure will be higher than about mixing chamber pressure 0.2MPa to 0.5MPa, and inside and outside cover thickness of interlayer is 1-3mm, interior cover adopts the red copper material, and overcoat adopts stainless steel material; Mixing chamber is a hollow circular, adopt inside and outside cover interlayer structure to be used for Forced water cooling, the neglecting mixing chamber pressure size greatly of hydraulic pressure and deciding, general cooling water pressure will be higher than about mixing chamber pressure 0.2MPa to 0.5MPa, inside and outside cover thickness of interlayer is 1-3mm, interior cover adopts the red copper material, and overcoat adopts stainless steel material; Field coil adopts red copper lenticular wire or water-cooled copper tube; The voltage of three-phase alternating-current supply is 10kV.
Implement example
As shown in Figure 1, a kind of AC plasma electro-arc heater comprises six electrodes 1, field coil 2, air inlet ring 4 and mixing chamber 5, each electrode length of six electrodes 1 is 800mm, diameter is 55mm, thickness of pipe wall is 6mm, curb pins cover thickness of interlayer is 2mm, and interior cover adopts the red copper material, and overcoat adopts stainless steel material; Mixing chamber 5 is a hollow circular, and inside and outside cover thickness of interlayer is 2mm, and interior cover adopts the red copper material, and overcoat adopts stainless steel material.Six electrodes 1 arrange evenly that in the locus being mutually 60 ° adopts flanges to be connected to form star structure with mixing chamber 5, the electrode root respectively leaves an air inlet ring 4, field coil 2 is wrapped in the outside of six electrodes 1, six electrodes 1 connect two groups of three-phase alternating-current supplies respectively and form six plasma-arcs 3, the voltage of three-phase alternating-current supply is 10KV, the maximum arc power of the AC plasma electro-arc heater of this kind structure is about 40MW, the maximum arc current of each electrode is 1500A, the highest arc chamber pressure is 10MPa, and concrete enthalpy-pressure characteristic is seen Fig. 2.
Claims (8)
1, a kind of AC plasma electro-arc heater, it is characterized in that: comprise six electrodes (1), field coil (2), air inlet ring (4) and mixing chamber (5), six electrodes (1) are in 60 ° at the locus five equilibrium and adopt flange to be connected to form star structure with mixing chamber (5), six electrodes (1) root respectively leaves an air inlet ring (4), field coil (2) is wrapped in the outside of six electrodes (1), and six electrodes (1) connect two groups of three-phase alternating-current supplies respectively and form six plasma-arcs (3).
2, a kind of AC plasma electro-arc heater according to claim 1 is characterized in that: described six electrodes (1) are tubulose, inside and outside cover interlayer structure.
3, a kind of AC plasma electro-arc heater according to claim 2 is characterized in that: the interior cover of described six electrodes (1) adopts the red copper material, and overcoat adopts stainless steel material, and thickness of interlayer is 1-3mm.
4, a kind of AC plasma electro-arc heater according to claim 1 and 2 is characterized in that: its length of described six electrodes (1) is 200-800mm, and diameter is 20-55mm, and thickness of pipe wall is 5-8mm.
5, a kind of AC plasma electro-arc heater according to claim 1 is characterized in that: described mixing chamber (5) is a hollow circular, inside and outside cover interlayer structure.
6, a kind of AC plasma electro-arc heater according to claim 5 is characterized in that: the interior cover of described mixing chamber (5) adopts the red copper material, and overcoat adopts stainless steel material, and thickness of interlayer is 1-3mm.
7, a kind of AC plasma electro-arc heater according to claim 1 is characterized in that: described field coil (2) adopts red copper lenticular wire or water-cooled copper tube.
8, a kind of AC plasma electro-arc heater according to claim 1, it is characterized in that: described three-phase alternating-current supply supply power voltage is 10KV.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201905073U CN201134972Y (en) | 2007-11-30 | 2007-11-30 | AC plasma electric arc heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201905073U CN201134972Y (en) | 2007-11-30 | 2007-11-30 | AC plasma electric arc heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201134972Y true CN201134972Y (en) | 2008-10-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201905073U Expired - Lifetime CN201134972Y (en) | 2007-11-30 | 2007-11-30 | AC plasma electric arc heater |
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| CN (1) | CN201134972Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104661349A (en) * | 2014-12-11 | 2015-05-27 | 中国航天空气动力技术研究院 | High-voltage low-erosion tube type electrode |
| CN104703376A (en) * | 2013-12-04 | 2015-06-10 | 新疆天业（集团）有限公司 | Large-power V-shaped plasma torch |
| CN105517312A (en) * | 2015-12-25 | 2016-04-20 | 中国航天空气动力技术研究院 | Super-high-enthalpy arc heater anode |
| CN105597583A (en) * | 2015-12-25 | 2016-05-25 | 中国航天空气动力技术研究院 | Multi-interface electric arc heating gas unwinding mixing chamber |
| CN106851888A (en) * | 2017-02-06 | 2017-06-13 | 中国航天空气动力技术研究院 | A kind of double circuit power supply circuit of 50MW alternating current arcs heater |
| CN109470504A (en) * | 2018-12-13 | 2019-03-15 | 中国航天空气动力技术研究院 | A kind of phase shift device and method for electro-arc heater arc root rotation of strengthening communication |
| CN110213874A (en) * | 2019-06-26 | 2019-09-06 | 中国航天空气动力技术研究院 | A kind of three-phase alternating current arc-plasma spray gun device |
| CN110730524A (en) * | 2019-10-28 | 2020-01-24 | 中国航天空气动力技术研究院 | High-temperature and high-pressure resistant four-way mixing chamber |
| CN110881239A (en) * | 2019-12-04 | 2020-03-13 | 中国科学院合肥物质科学研究院 | Multi-arc plasma reactor introducing external magnetic field and operation method |
| CN111263480A (en) * | 2020-01-19 | 2020-06-09 | 中国空气动力研究与发展中心超高速空气动力研究所 | Low burning loss electrode of electric arc heater |
| CN112312604A (en) * | 2020-11-23 | 2021-02-02 | 中国航天空气动力技术研究院 | Excitation coil |
-
2007
- 2007-11-30 CN CNU2007201905073U patent/CN201134972Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104703376A (en) * | 2013-12-04 | 2015-06-10 | 新疆天业（集团）有限公司 | Large-power V-shaped plasma torch |
| CN104661349A (en) * | 2014-12-11 | 2015-05-27 | 中国航天空气动力技术研究院 | High-voltage low-erosion tube type electrode |
| CN105517312A (en) * | 2015-12-25 | 2016-04-20 | 中国航天空气动力技术研究院 | Super-high-enthalpy arc heater anode |
| CN105597583A (en) * | 2015-12-25 | 2016-05-25 | 中国航天空气动力技术研究院 | Multi-interface electric arc heating gas unwinding mixing chamber |
| CN106851888A (en) * | 2017-02-06 | 2017-06-13 | 中国航天空气动力技术研究院 | A kind of double circuit power supply circuit of 50MW alternating current arcs heater |
| CN109470504A (en) * | 2018-12-13 | 2019-03-15 | 中国航天空气动力技术研究院 | A kind of phase shift device and method for electro-arc heater arc root rotation of strengthening communication |
| CN110213874A (en) * | 2019-06-26 | 2019-09-06 | 中国航天空气动力技术研究院 | A kind of three-phase alternating current arc-plasma spray gun device |
| CN110213874B (en) * | 2019-06-26 | 2024-03-15 | 中国航天空气动力技术研究院 | Three-phase alternating current arc plasma spray gun device |
| CN110730524A (en) * | 2019-10-28 | 2020-01-24 | 中国航天空气动力技术研究院 | High-temperature and high-pressure resistant four-way mixing chamber |
| CN110881239A (en) * | 2019-12-04 | 2020-03-13 | 中国科学院合肥物质科学研究院 | Multi-arc plasma reactor introducing external magnetic field and operation method |
| CN111263480A (en) * | 2020-01-19 | 2020-06-09 | 中国空气动力研究与发展中心超高速空气动力研究所 | Low burning loss electrode of electric arc heater |
| CN112312604A (en) * | 2020-11-23 | 2021-02-02 | 中国航天空气动力技术研究院 | Excitation coil |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081015 |