CN2521868Y - Multiple micro-discharge cooperative intergrated discharging apparatus - Google Patents
Multiple micro-discharge cooperative intergrated discharging apparatus Download PDFInfo
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- CN2521868Y CN2521868Y CN 01270102 CN01270102U CN2521868Y CN 2521868 Y CN2521868 Y CN 2521868Y CN 01270102 CN01270102 CN 01270102 CN 01270102 U CN01270102 U CN 01270102U CN 2521868 Y CN2521868 Y CN 2521868Y
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Abstract
The utility model adopts an AC high-voltage circuit to provide energy for a reactor; a medium layer with even quality and depth which is accreted with a bar-type or planar electrode forms a reactor discharge air gap; the air gap produces medium barrier discharge and the utility model can also discharge on the surface of the medium layer which is accreted with the bar-type electrode, i.e. two discharges can be implemented in the same discharge zone. By adding the medium layer and changing the electrode arrangement and power connection, multi-center discharge air gaps can be formed in the reactor of the discharge device and every air gap can produce the consistent micro discharges and produce double discharge along the surface in the discharge zone. The medium layer can be a flat type or cylindrical one. The discharge device provided by the utility model can greatly promote the energy utilization rate and is characterized by a simple processing, small whole volume, easy cooling of reactor, easy parallel connection of a plurality of discharge circuits or easy magnification of reactor scale.
Description
The utility model relates to non-hot micro discharge plasma field, particularly the plasma generating device of the collaborative one of creeping discharge and dielectric barrier discharge.
As depicted in figs. 1 and 2, in general, creeping discharge or dielectric barrier discharge plasma source apparatus comprise an ac high voltage source 1, and this high voltage source is transformed into line voltage electric energy forms such as high-frequency and high-voltage or power frequency high voltage; Creeping discharge or dielectric barrier discharge reactor 2, by being added on the high-field electrode 4 of discharge reactor 2 from the high voltage electric energy that the high voltage source transmission comes by high-tension cable 3, space between high-field electrode 4 and ground electrode 5 produces micro discharge, concerning creeping discharge, produce micro discharge, handle the gas of this region of discharge of flowing through at dielectric surface with high-field electrode; A shell of reactor 6 is used for fixing the insulator 7 of tie cable 3 and high-field electrode 4; An earthing device 8, this earthing device play a part to the earth leakage current, prevent that earth potential from raising, protecting the person and instrument safety.
Discharge reactor is one of the Primary Component in creeping discharge or dielectric barrier discharge plasma source.As shown in Figure 3 and Figure 4, the creeping discharge reactor mainly contains two kinds of plate-type reactor and cartridge reactors.High voltage electric energy is added on the electrode 10 that sticks on thickness and the uniform dielectric layer of quality 9 surfaces by transmission line, and this sparking electrode is the palisade thin metal layer, and pasting the layer of metal thin layer at the another side of dielectric layer 9 is ground electrode 11.Palisade bonding jumper width is the millimeter magnitude, and the distance between the bonding jumper is that millimeter arrives centimetre magnitude, and thickness of dielectric layers is a millimeter magnitude.Under the alternation action of high voltage, micro discharge occurs in dielectric surface between the bonding jumper.Dielectric layer can be for dull and stereotyped or cylindric, for insulation is considered and can be covered another layer medium at ground electrode 11 skins.As shown in Figure 5 and Figure 6, the dielectric barrier discharge reactor also mainly contains two kinds of plate-type reactor and cartridge reactors.High voltage electric energy is added on the electrode 16 that sticks on thickness and the uniform dielectric layer of quality 15 surfaces by transmission line, this sparking electrode is dull and stereotyped or cylindric, decide on the dielectric layer shape, pasting the layer of metal thin layer on the surface of another dielectric layer is ground electrode 17, gap between two dielectric layers is the millimeter magnitude, in addition, also can the gap of millimeter magnitude will be constituted as the metal level of high-field electrode and the dielectric layer of band ground electrode.Micro discharge just occurs between above-mentioned two kinds of gaps.
Creeping discharge and dielectric barrier discharge have common characteristics, are exactly all to utilize power frequency or high-frequency ac high pressure that the discharge electric energy is provided; Utilize dielectric property to make gas gap or dielectric surface form transient high voltages and produce micro discharge.Voltage peak at several KV between tens KV, frequency at tens Hz to tens KHz even higher.By handling toxic and harmful to the gas effect in the micro discharge district that flows through; Come the purifying contaminated water body and food, air etc. are carried out processing such as sterilizing by synthetic ozone.Up to the present, these two kinds of discharges still are in conceptual phase to the direct processing of toxic and harmful, and the small utility product is only arranged; To the synthetic industrialized level that reached of ozone, but, owing to reason such as the ac high-voltage output characteristic needs optimization, reactor media loss, electrode structure is unreasonable and processing technology is not good enough, the electric energy ratio that is actually used in discharge is very little, and the discharge energy utilance is also far below theoretical value.
Document shows that the new development of non-thermal discharge plasma source technology is very limited, is developing the reactor of a kind of creeping discharge and barrier discharge combination recently, as shown in Figure 7.This discharge reactor can improve flash-over characteristic to a certain extent, improve the ozone combined coefficient.In addition, a kind of dielectric barrier discharge reactor of ultrashort air gap also occurs.This reactor has improved the discharge energy utilance significantly, and its discharge reactor structure is that its discharge air-gap is 0.05 millimeter to 0.1 millimeter with the difference of general dielectric barrier discharge reactor as shown in Figure 8.
The purpose of this utility model is to propose a kind of new electric discharge device, with existing micro discharge equal volume region of discharge in can inject high voltage electric energy at double, produce stronger more uniform micro discharge, significantly improve the capacity usage ratio that is used for micro discharge.
In the electric discharge device of the utility model design, in discharge reactor, inject high voltage electric energy by a power frequency or high-frequency ac high voltage source, creeping discharge and dielectric barrier discharge take place in discharge reactor simultaneously.The primary structure of this electric discharge device is such: two even dull and stereotyped medium configured in parallel, the upper surface of top dielectric and the lower surface of layer dielectric are respectively pasted a metal foil flat board, and the lower surface of top dielectric or the upper surface of layer dielectric are pasted a palisade thin metal layer; Palisade bonding jumper width is the millimeter magnitude, and the distance between the bonding jumper is that millimeter arrives centimetre magnitude, and thickness of dielectric layers is a millimeter magnitude, and the gap between two dielectric layers is no more than 1 centimetre more than or equal to the thickness and the maximum of palisade bonding jumper; Two metal foil flat boards all link to each other as ground electrode with power supply ground end, and the palisade thin metal layer connects the power supply high-pressure side as sparking electrode.The dull and stereotyped medium of this electric discharge device can be replaced into the cylinder type medium.At this moment, the difference of two medium cross section radiuses is no more than 1 centimetre more than or equal to the thickness and the maximum of palisade bonding jumper; An outer and concentric arrangement in two media one; The shape of each electrode and the cylinder type of medium are complementary.
Between two dielectric layers of aforementioned electric discharge device, can also increase one or more layers medium, and a thin metal layer is respectively pasted as electrode in (or inside and outside) surface about the dielectric layer that increases.Like this, the electric discharge device of single passage just has been modified into the multichannel electric discharge device.
Only with the power supply power supply of an output AC high pressure, the electric discharge device of the utility model design has realized that multiple sparking electrode produces creeping discharge and dielectric barrier discharge simultaneously in same region of discharge, and capacity usage ratio is largely increased.With respect to the ozoniferous electric discharge device of other all kinds, the utility model power supply is simple, need not the polyphase ac high voltage supply, and the reactor discharge electrode structure is changeable, and easily enlarges the reactor scale by simple multiple discharge air-gap structure and realize industrialization.
The electric discharge device of the utility model design has that processing is simple, overall volume is little, it is in parallel or enlarge advantages such as reactor scale to be easy to the reactor cooling and to be easy to the multichannel discharge channel.
Below further specify advantage of the present utility model by the synthetic contrast experiment of two groups of ozone.
Figure 12 is for using the general structure schematic diagram of the synthetic ozone of the utility model reactor embodiment illustrated in fig. 10.With the air is source of the gas, at first through voltage stabilizing with the certain flow reactor micro discharge air gap of flowing through, in the reactor discharge air-gap,, handle back gas is flowed out and measured with the ozone tester synthetic ozone by reactor outlet concentration through the synthetic ozone of dual surface discharge plasma chemical reaction.In process of the test, be reactor discharge energy supply with the adjustable positive high voltage burst pulse power supply of voltage peak adjustable frequency, the air-cooled planar ground electrode of two reactors up and down.For superiority more of the present utility model, under other condition same case, remove reactor one planar ground electrode, in the discharge air-gap only in a dielectric surface generation creeping discharge, as shown in figure 13.At this moment, similar with existing creeping discharge ozone synthetic technology.
The result of the test of above-mentioned two kinds of situations is compared, and its comparative result sees Table one and table two.By two groups of experimental datas as can be known, under identical voltage peak and the frequency, applicating example device Figure 12 of the present utility model compares the energy that injection doubles with device Figure 13 of conventional principles in identical discharge air-gap; The ozone concentration that the former produced is 4 times of the latter; The former ozone productive rate is 2 times of the latter.Observe in test the micro discharge intensity height in the air gap in the utility model device simultaneously, above-mentioned test obtains not increasing the weight of under the reactor cooling burden, with respect to conventional creeping discharge or dielectric barrier discharge, application of the present utility model makes the discharge energy that injects in the equal volume reactor at double, the ozone concentration that produces significantly improves, and the discharge energy utilance also significantly improves.
First group of comparative experiments of table one
Second group of comparative experiments of table two
| Discharge voltage peak value (KV) | 15 | ?19 | ?23 | ?27 | ?31 | ?35 | |
| Power injects (W) | Single | 6.4 | ?10.8 | ?16.7 | ?24.0 | ?35.1 | ?40.7 |
| Two-sided | 11.7 | ?22.1 | ?33.1 | ?45.6 | ?64.4 | ?107.6 | |
| Ozone concentration (ppm) | Single | 8 | ?157 | ?331 | ?722 | ?1094 | ?1484 |
| Two-sided | 226 | ?678 | ?1375 | ?2209 | ?3335 | ?4747 | |
| Ozone productive rate (g/kwh) | Single | 0.8 | ?9.4 | ?12.8 | ?19.3 | ?20.0 | ?23.4 |
| Two-sided | 12.4 | ?19.8 | ?26.7 | ?31.3 | ?33.3 | ?28.4 | |
| Discharge voltage peak value (KV) | 15 | ?19 | ?23 | ?27 | ?31 | ?35 | |
| Power injects (W) | Single | 6.1 | ?11 | ?16.7 | ?24.3 | ?32.2 | ?41.4 |
| Two-sided | 13.1 | ?21.2 | ?34.7 | ?45.9 | ?60.3 | ?101.3 | |
| Ozone concentration (ppm) | Single | 6 | ?316 | ?602 | ?1260 | ?1923 | ?2550 |
| Two-sided | 576 | ?1195 | ?2706 | ?3873 | ?5269 | ?7271 | |
| Ozone productive rate (g/kwh) | Single | 0.1 | ?11.1 | ?14.0 | ?20.0 | ?23.1 | ?23.8 |
| Two-sided | 17.0 | ?21.8 | ?30.1 | ?32.6 | ?33.7 | ?27.7 | |
Further describe the electric discharge device of the utility model design below in conjunction with the accompanying drawing illustrated embodiment.
Fig. 1 is the creeping discharge principle schematic.
Fig. 2 is the dielectric barrier discharge principle schematic.
Fig. 3 is conventional board-like creeping discharge reactor schematic diagram.
Fig. 4 is conventional cartridge type creeping discharge reactor schematic diagram.
Fig. 5 is conventional board-like dielectric barrier discharge reactor schematic diagram.
Fig. 6 is conventional cartridge type dielectric barrier discharge reactor schematic diagram.
Fig. 7 is the reactor schematic diagram of a kind of creeping discharge and dielectric barrier discharge combination.
Fig. 8 is ultrashort air gap dielectric barrier discharge ozone synthesizer schematic diagram.
Fig. 9 is the structural representation of the utility model first embodiment electric discharge device primary clustering.
Figure 10 is the structural representation of the utility model second embodiment electric discharge device primary clustering.
Figure 11 is the structural representation of the utility model the 3rd embodiment electric discharge device primary clustering.
Figure 12 is a device schematic diagram of using the synthetic ozone of dual creeping discharge of the present utility model.
Figure 13 is the reactor schematic diagram of the synthetic ozone of conventional creeping discharge.
Accompanying drawing 9 to Figure 11 has provided 3 kinds of device schematic diagrames of the multiple discharge of the utility model creeping discharge and the collaborative one of dielectric barrier discharge.With ac high voltage source is the power supply of this electric discharge device, and the output voltage peak-to-peak value is that several kV are to tens kV.
In Fig. 9, the micro discharge air gap is made of two parallel even dull and stereotyped dielectric layers staggered relatively, and thickness of dielectric layers and air gap height are a millimeter magnitude.The upper surface of dull and stereotyped dielectric layer 19 is pasted metal foil flat board 18 as an electrode; The upper surface of another dull and stereotyped dielectric layer 22 is pasted gate-shaped electrode 20, and lower surface is pasted metal foil flat board 21 as an electrode.Each bonding jumper width of gate-shaped electrode 20 is the millimeter magnitude, and the spacing between the adjacent metal bar is that millimeter arrives centimetre magnitude, and bonding jumper thickness is less than 1 millimeter.Metal foil dull and stereotyped 18 all links to each other as ground electrode with power supply ground end with 21, and gate-shaped electrode 20 connects the power supply high-pressure side as sparking electrode.
Shorten the distance of two dull and stereotyped dielectric layers among Fig. 9, make the height of discharge air-gap equal the thickness of gate-shaped electrode, just obtain the second designed embodiment electric discharge device of the utility model, its structure as shown in figure 10, gate-shaped electrode 24 is clipped between dielectric layer 23 and the dielectric layer 25.
Figure 11 shows the 3rd embodiment of the present utility model.The micro discharge air gap is made of three parallel even dull and stereotyped dielectric layers staggered relatively, and thickness of dielectric layers and air gap height are a millimeter magnitude.The upper and lower surface of middle one deck medium is respectively with the consistent size of gate-shaped electrode 26 and gate-shaped electrode 27, two each bonding jumper of gate-shaped electrode, and width is the millimeter magnitude, and thickness is less than 1 millimeter, and the spacing between the adjacent metal bar is that millimeter is to centimetre magnitude.As shown in the figure, each bonding jumper center line of gate-shaped electrode 27 is divided the adjacent metal bar of the gate-shaped electrode 26 of another side respectively equally; Gate-shaped electrode 27 connects the high-pressure side of power supply with the plate electrode that sticks on the top dielectric upper surface, and gate-shaped electrode 26 connects the ground end of power supply as ground electrode with the plate electrode that sticks on the layer dielectric lower surface.
Except above-mentioned three embodiment that provide, the electric discharge device that the utility model provides can also be designed to cylinder type or more multichannel electric discharge device.
Claims (8)
1. the electric discharge device of the collaborative one of multiple micro discharge provides in the high voltage electric energy injecting reactor by an ac high voltage source, produces creeping discharge and dielectric barrier discharge in described reactor simultaneously, it is characterized in that:
Thickness is two even dull and stereotyped medium configured in parallel of millimeter magnitude, and the gap between two dielectric layers is the millimeter magnitude;
The upper surface of top dielectric and the lower surface of layer dielectric are respectively pasted a plate electrode, and the lower surface of top dielectric or the upper surface of layer dielectric are pasted a gate-shaped electrode;
Two plate electrodes all link to each other as ground electrode with power supply ground end, and gate-shaped electrode connects the power supply high-pressure side as sparking electrode.
2. electric discharge device according to claim 1 is characterized in that: the thickness of gate-shaped electrode and plate electrode is less than 1 millimeter, and each palisade bonding jumper width is the millimeter magnitude, and the distance between the adjacent metal bar is that millimeter is to centimetre magnitude.
3. electric discharge device according to claim 1 and 2 is characterized in that: two dielectric layers are clamped gate-shaped electrode, and the distance between two dielectric layers equals the thickness of palisade bonding jumper.
4. electric discharge device according to claim 1 is characterized in that:
Cancellation sticks on the gate-shaped electrode of the upper surface of the lower surface of top dielectric or layer dielectric; In the middle of two dielectric layers, increase one deck medium, and paste a gate-shaped electrode respectively in the upper and lower surface of this layer medium;
Three layers of medium configured in parallel, the gap between the adjacent dielectric are the millimeter magnitude;
The plate electrode that sticks on the top dielectric upper surface connects an output of AC power with the gate-shaped electrode that sticks on middle level medium lower surface; The plate electrode that sticks on the layer dielectric lower surface connects another output of AC power with the gate-shaped electrode that sticks on middle level medium upper surface.
5. electric discharge device according to claim 4, it is characterized in that: stick on the two gate-shaped electrodes dislocation configuration of middle level medium upper and lower surface, promptly each bonding jumper of gate-shaped electrode of medium one side is divided the adjacent metal bar of the gate-shaped electrode of medium opposite side respectively equally at the correspondence position of opposite side.
6. according to claim 4 or 5 described electric discharge devices, it is characterized in that: the thickness of gate-shaped electrode peace plate is less than 1 millimeter, and each palisade bonding jumper width is the millimeter magnitude, and the distance between the adjacent metal bar is that millimeter is to centimetre magnitude.
7. according to claim 1,2,4 or 5 described electric discharge devices, it is characterized in that: each electrode and dielectric layer are cylinder type, inside and outside dielectric layer concentric arrangement.
8. electric discharge device according to claim 7 is characterized in that: the thickness of gate-shaped electrode and plate electrode is less than 1 millimeter, and each palisade bonding jumper width is the millimeter magnitude, and the distance between the adjacent metal bar is that millimeter is to centimetre magnitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01270102 CN2521868Y (en) | 2001-11-02 | 2001-11-02 | Multiple micro-discharge cooperative intergrated discharging apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01270102 CN2521868Y (en) | 2001-11-02 | 2001-11-02 | Multiple micro-discharge cooperative intergrated discharging apparatus |
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| CN2521868Y true CN2521868Y (en) | 2002-11-20 |
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| CN 01270102 Expired - Fee Related CN2521868Y (en) | 2001-11-02 | 2001-11-02 | Multiple micro-discharge cooperative intergrated discharging apparatus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101128964B (en) * | 2005-03-28 | 2012-05-09 | 三菱电机株式会社 | Silent discharge type plasma device |
| CN103442509A (en) * | 2013-08-24 | 2013-12-11 | 大连海事大学 | Reciprocating type multi-ionization-cavity atmospheric-pressure unbalance plasma reactor |
| CN106888544A (en) * | 2017-04-20 | 2017-06-23 | 大连海事大学 | A kind of blending agent discharge-blocking device |
| CN107244708A (en) * | 2017-07-28 | 2017-10-13 | 罗璐 | The water treatment facilities of water supply network terminal based on S VDBD |
| CN111432543A (en) * | 2020-03-23 | 2020-07-17 | 河北大学 | Device and method for generating large-area stable controllable plasma |
-
2001
- 2001-11-02 CN CN 01270102 patent/CN2521868Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101128964B (en) * | 2005-03-28 | 2012-05-09 | 三菱电机株式会社 | Silent discharge type plasma device |
| CN103442509A (en) * | 2013-08-24 | 2013-12-11 | 大连海事大学 | Reciprocating type multi-ionization-cavity atmospheric-pressure unbalance plasma reactor |
| CN106888544A (en) * | 2017-04-20 | 2017-06-23 | 大连海事大学 | A kind of blending agent discharge-blocking device |
| CN107244708A (en) * | 2017-07-28 | 2017-10-13 | 罗璐 | The water treatment facilities of water supply network terminal based on S VDBD |
| CN111432543A (en) * | 2020-03-23 | 2020-07-17 | 河北大学 | Device and method for generating large-area stable controllable plasma |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |