CN201242995Y - Plasma generator for sterilizing gas - Google Patents
Plasma generator for sterilizing gas Download PDFInfo
- Publication number
- CN201242995Y CN201242995Y CNU2008200680895U CN200820068089U CN201242995Y CN 201242995 Y CN201242995 Y CN 201242995Y CN U2008200680895 U CNU2008200680895 U CN U2008200680895U CN 200820068089 U CN200820068089 U CN 200820068089U CN 201242995 Y CN201242995 Y CN 201242995Y
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- CN
- China
- Prior art keywords
- plasma generator
- anode layer
- layer
- housing
- discharge
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- Expired - Fee Related
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- Apparatus For Disinfection Or Sterilisation (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The utility model relates to a plasma generator for gas depoisoning. The plasma generator is provided with a shell body, an air inlet and an air outlet are arranged on the shell body, a micro-discharge structure composed by the sequential overlapping of an anode layer, an insulating layer and a cathode layer from top to bottom is arranged in the shell body, a plurality of microholes with equal longitudinal and transversal distance and equal hole diameter are distributed on the surfaces of the anode layer and the insulating layer; electrodes corresponding to the microholes one by one are fixed at a position of 1-5cm above the anode layer. The plasma generator can carry out the depoisoning treatment on large-area and high-volume noxious gases, in particular on the volatile noxious gases such as methane, benzene and the like, thus obtaining clean gases. As the plasma generator can directly work in the air with atmospheric pressure or super-atmospheric pressure, the plasma generator is particularly suitable for the treatment of the industrial noxious gases.
Description
(1) technical field: the utility model belongs to environmental protection equipment, specifically is a kind of plasma generator that is used for gas depoisoning.
(2) background technology: at present, technology to gas disinfection comparative maturity mainly contains: disinfection by ultraviolet light, ozonization, anion sterilization etc., but also there is certain defective in they, the one, can produce certain harm to human body, the 2nd, should not carry out the jumbo gas depoisoning of large tracts of land.
(3) summary of the invention: the purpose of this utility model just provides a kind of plasma generator that is used for gas depoisoning; This plasma generator is the basis achievement in research of hyperbar gas discharge in recent years, in conjunction with the industrial demand growing to the toxic gas disinfection, the characteristic of utilizing the non-thermal plasma body source can produce the hyperbar discharge plasma of large volume designs, can the jumbo toxic gas disinfection of large tracts of land not constituted harm to human body simultaneously.
The utlity model has housing, housing is provided with air inlet and exhaust outlet, it is characterized in that: the micro discharge structure that is overlapped successively from top to bottom by anode layer, insulating barrier, cathode layer is housed in housing, is distributed with some micropores equidistant in length and breadth, that the aperture equates at described anode layer and surface of insulating layer; The 1-5cm place is fixed with and described micropore electrode of opposite one by one above described anode layer.
Described anode layer, insulating barrier, cathode layer are respectively molybdenum sheet, Al
2O
3Potsherd, molybdenum sheet.
The aperture of described micropore is 100 μ m-250 μ m.
Described electrode is the tungsten pin.
Be provided with insulator between described micro discharge structure cathode layer and the housing.
Design principle of the present utility model is: the single formed volume of plasma of micro discharge structure that is made of anode layer, insulating barrier, cathode layer is too little, needs the hyperbar glow discharge plasma of large volume during industrial the application; Therefore, the discharge type that analogy is similar, the utility model adopt a micro discharge structure and a third electrode (tungsten pin), and third electrode is placed on anode side in the micro discharge structure as the anode of whole discharge, from micro discharge, extract electronics out, and micro discharge is as the negative electrode of whole discharge.Utilize this structure generation scale in atmospheric air to reach the stable DC glow discharge plasma of centimetre magnitude, electron density reaches 10
14Cm
-3, and this discharging structure has positive differential resistance characteristic at whole region of discharge, and this discharging structure can carry out a large amount of parallel runnings without steady resistance, constitutes bigger discharge arrays.Therefore, constitute plasma generator, produce the discharge plasma of large volume by a large amount of glow discharge array parallel runnings of controlling oneself, can be to the disinfection of indusrial toxic gas.
The utility model is the stable glow discharge of a kind of hyperbar, and discharge air pressure can meet or exceed atmospheric pressure, and its main feature is: (1) has the nonthermal electron Energy distribution, and region of discharge forms high current density, and electron density is 10
13-10
16Cm
-3(direct-current discharge or pulse direct current discharge); (2) high power density is arranged in the discharge plasma.Because discharge plasma has high power density (generally greater than 10
3KW/cm
3), the high energy electron of very high-density is (generally greater than 10
13Cm
-3), high gas temperature (generally greater than 2000K), these make its decomposition gas effectively, can be used for volatility toxic gases such as methane and benzene are sterilized; (3) adopt the pulse direct current discharge mode, can make discharge power improve about 50%; (4) type of cooling that adopts gas flow to combine with the diffusion cooling, this mode can be taken away the big calorimetric of discharge generation fast, reduces power loss, improves the efficient of plasma generator.The flow velocity of control dusty gas can effectively cool off discharge, and the shell of whole discharge adopts the aluminium alloy of good heat dissipation effect to make in addition, to improve the effect of diffusion cooling; (5) because the discharge air pressure of the plasma generator of design can meet or exceed atmospheric pressure, so this plasma generator seal request is lower, has reduced the manufacture difficulty of chlorination equipment.
(4) description of drawings:
Fig. 1 is that the overall structure of the utility model embodiment is overlooked the direction schematic diagram;
Fig. 2 be among Fig. 1 A-A ' to the sectional structure schematic diagram;
Fig. 3 is single micro discharge basic structure schematic diagram;
Fig. 4 is by two micro discharges and two self-holding glow discharge parallel running structural representations that the tungsten pin electrode constitutes.
(5) embodiment:
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, among the figure, 1-housing, 2-air inlet, 3-gas outlet, 4-anode layer, 5-insulating barrier, 6-cathode layer, 7-micropore, 8-tungsten pin electrode, 9-hole, 10-insulator, 11-earthenware.
The utlity model has housing 1, housing is provided with air inlet 2 and exhaust outlet 3, and the setting of general porting is just passed plasma with its central axis and is advisable; Referring to Fig. 1, present embodiment adopts aluminum alloy materials to make housing, and carries out the oxygen polarization and handle; Housing is rectangular shape, in housing, is equipped with by anode layer 4, and the micro discharge structure that insulating barrier 5, cathode layer 6 splice successively from top to bottom and form, wherein cathode layer and anode layer all adopt the thick molybdenum sheet of 0.1-0.2mm, and middle insulating barrier adopts Al
2O
3Potsherd, thickness is generally 0.2-0.4mm, connects together with bonding way between cathode layer, insulating barrier and the anode layer.Be distributed with some micropores 7 equidistant in length and breadth, that the aperture equates at described anode layer and surface of insulating layer, micro-pore diameter is 200 microns, and the 1-5cm place is fixed with and above-mentioned micropore electrode of opposite 8 one by one above described anode layer 4, and this electrode generally uses the tungsten pin.In the present embodiment, directly on the housing above the anode layer, get hole 9, the tungsten pin electrode is placed in it.Also can be above anode layer suitable fixed distance one hanging deck, get the relative one by one hole of some and described micropore on the hanging deck, refill the tungsten pin electrode in the hole, also can reach the purpose of the utility model.As shown in Figure 2, be provided with insulator 10 between micro discharge structure cathode layer 6 and housing, all with the isolation of insulating of insulating ceramics pipe 11 and Al-alloy casing, cathode layer, anode layer and tungsten pin electrode are connected with corresponding power supply all electrodes respectively.
The utility model is placed in the process chamber, and toxic gas enters through air inlet, flows out from the gas outlet after treatment, and experiment shows that the removing to methane reaches 80%, and the removing of benzene is reached 90%.
Claims (5)
1. the plasma generator that is used for gas depoisoning, has housing, housing is provided with air inlet and exhaust outlet, it is characterized in that: the micro discharge structure that is overlapped successively from top to bottom by anode layer, insulating barrier, cathode layer is housed in housing, is distributed with some micropores equidistant in length and breadth, that the aperture equates at described anode layer and surface of insulating layer; The 1-5cm place is fixed with and described micropore electrode of opposite one by one above described anode layer.
2. the plasma generator that is used for gas depoisoning according to claim 1 is characterized in that: described anode layer, insulating barrier, cathode layer are respectively molybdenum sheet, Al
2O
3Potsherd, molybdenum sheet.
3. the plasma generator that is used for gas depoisoning according to claim 1 and 2 is characterized in that: the aperture of described micropore is 100 μ m-250 μ m.
4. the plasma generator that is used for gas depoisoning according to claim 1 is characterized in that: described electrode is the tungsten pin.
5. the plasma generator that is used for gas depoisoning according to claim 1 is characterized in that: be provided with insulator between described micro discharge structure cathode layer and the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200680895U CN201242995Y (en) | 2008-06-22 | 2008-06-22 | Plasma generator for sterilizing gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200680895U CN201242995Y (en) | 2008-06-22 | 2008-06-22 | Plasma generator for sterilizing gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201242995Y true CN201242995Y (en) | 2009-05-20 |
Family
ID=40716285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200680895U Expired - Fee Related CN201242995Y (en) | 2008-06-22 | 2008-06-22 | Plasma generator for sterilizing gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201242995Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011147595A1 (en) * | 2010-05-27 | 2011-12-01 | Arann Healthcare Ltd. | Method and apparatus for the sterilisation of articles |
| CN101922750B (en) * | 2009-12-31 | 2012-07-04 | 周云正 | Smoke exhaust ventilator provided with plasma for purification |
| CN103458601A (en) * | 2013-09-12 | 2013-12-18 | 大连民族学院 | Plasma generation device |
-
2008
- 2008-06-22 CN CNU2008200680895U patent/CN201242995Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922750B (en) * | 2009-12-31 | 2012-07-04 | 周云正 | Smoke exhaust ventilator provided with plasma for purification |
| WO2011147595A1 (en) * | 2010-05-27 | 2011-12-01 | Arann Healthcare Ltd. | Method and apparatus for the sterilisation of articles |
| CN103458601A (en) * | 2013-09-12 | 2013-12-18 | 大连民族学院 | Plasma generation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20100622 |