CN215871944U - DBD discharging device with magnetic guide - Google Patents
DBD discharging device with magnetic guide Download PDFInfo
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- CN215871944U CN215871944U CN202121727069.6U CN202121727069U CN215871944U CN 215871944 U CN215871944 U CN 215871944U CN 202121727069 U CN202121727069 U CN 202121727069U CN 215871944 U CN215871944 U CN 215871944U
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- 238000007599 discharging Methods 0.000 title description 2
- 239000000919 ceramic Substances 0.000 claims description 17
- 230000005389 magnetism Effects 0.000 claims description 2
- 210000002381 plasma Anatomy 0.000 abstract description 26
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 230000006798 recombination Effects 0.000 abstract description 3
- 238000005215 recombination Methods 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 6
- 230000005684 electric field Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002147 killing effect Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model provides a DBD discharge device with magnetic guidance, which comprises a positive electrode and a negative electrode which are arranged in parallel, an insulating medium arranged between the positive electrode and the negative electrode, and a high-voltage power supply device connected between the two electrodes, and is characterized in that: the positive electrode or the negative electrode adopts a magnet electrode, the positive electrode, the negative electrode and the insulating medium are positioned in the magnetic field area range of the magnet electrode, when the positive electrode is the magnet electrode, the end face of the magnet electrode close to the insulating medium is an N pole, the end face far away from the insulating medium is an S pole, when the negative electrode is the magnet electrode, the end face of the magnet electrode close to the insulating medium is an S pole, and the end face far away from the insulating medium is an N pole. The utility model ensures that all plasmas are confined in the space between the positive electrode and the negative electrode, reduces the recombination rate of the plasmas, improves the number of the plasmas, and simultaneously has more uniform diffusion.
Description
Technical Field
The utility model belongs to the technical field of plasma generating devices, and relates to a magnetically guided DBD discharge device and a plasma generating device.
Background
DBD discharge, also called dielectric barrier discharge, is a gas discharge in which an insulating dielectric is inserted into a discharge space, the dielectric can be covered on an electrode or hung in the discharge space, so that when a sufficiently high ac voltage is applied to the discharge electrode, the gas between the electrodes is broken down to form a so-called dielectric barrier discharge even under a high voltage, in general, in a conventional DBD discharge device, two discharge electrodes, a positive electrode and a negative electrode, are made of metal, the dielectric is made of ceramic, the ceramic placed between the positive and negative electrodes generates micro-arc through a discharge process, thereby generating plasma, the positive and negative charges of the plasma generated by the two discharge electrodes are all present, and in a natural state, the plasmas in the positive and negative states have a part of mutual neutralization and thus lose activity, thereby reducing the number of plasmas, when it is necessary to use plasma for sterilization, the sterilization effect is reduced.
SUMMERY OF THE UTILITY MODEL
Based on the defects of the prior art, the utility model provides the DBD discharge device with the magnetic guide, which is used for changing the motion of plasma, increasing the number of the plasma, enabling the plasma to be diffused farther and improving the killing effect.
In order to achieve the above purpose, the utility model adopts the technical scheme that,
the utility model provides a DBD discharge device of area magnetism guide, includes parallel arrangement's positive electrode and negative electrode, still includes the insulating medium who sets up between positive electrode and negative electrode, still includes the high voltage power supply unit who connects between two electrodes, its characterized in that: the positive electrode or the negative electrode adopts a magnet electrode, the positive electrode, the negative electrode and the insulating medium are positioned in the magnetic field area range of the magnet electrode, when the positive electrode is the magnet electrode, the end face of the magnet electrode close to the insulating medium is an N pole, the end face far away from the insulating medium is an S pole, when the negative electrode is the magnet electrode, the end face of the magnet electrode close to the insulating medium is an S pole, and the end face far away from the insulating medium is an N pole.
Furthermore, the insulating medium is a ceramic medium, and the ceramic medium is suspended between the positive electrode and the negative electrode and is respectively arranged in parallel with the two electrodes.
Further, the ceramic dielectric is provided with micropores.
Further, the magnet electrode is a permanent magnet.
Further, the negative electrode is a mesh structure.
The utility model has the beneficial effects that: use magnet replacement electrode, apply a magnetic field in the plasma formation region, magnet circular telegram back, both can be when the electrode can produce magnetic field again, when magnetic field direction and electric field direction are parallel, then the ion can not the atress when the direction of motion of plasma is unanimous with magnetic field direction, can continue along original direction motion, once there is the component in the horizontal direction of ion direction of motion, the ion can receive the effect of lorentz's power and carry out the screw motion, and along the direction screw motion of magnetic force line, thereby offset the power of horizontal direction gradually, make all plasmas retrain the space between positive electrode and negative electrode, the recombination rate of plasma has been reduced, the plasma quantity has been improved, diffusion is also more even simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
In the figure, 1 is a positive electrode, 2 is a ceramic medium, and 3 is a negative electrode.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In particular, circuit connection modes, position relationships, component models and the like which are not mentioned in the embodiments of the present disclosure belong to technical means commonly used in the art, and the terminology used in the embodiments of the present disclosure is only for the purpose of describing the specific embodiments, and is not intended to limit the scope of the present disclosure.
Example 1: as shown in fig. 1, a DBD discharge device with magnetic guidance includes a positive electrode 1 and a negative electrode 2 arranged in parallel, a ceramic medium 3 arranged between the positive electrode and the negative electrode and respectively arranged in parallel with the two electrodes, and a high voltage power supply device connected between the two electrodes, where the high voltage power supply device is used to provide high voltage power for the DBD discharge device, and may be a high voltage power supply device commonly used by those skilled in the art or other high voltage power supply devices, and mainly can provide discharge voltage for the DBD discharge device, and can be selected according to actual situations, the positive electrode 1 is a magnet electrode, and the positive electrode 1, the negative electrode 2 and the ceramic medium 3 are located in a magnetic field area range of the magnet electrode, and the end surface of the magnet electrode adjacent to the ceramic medium 3 is an N pole, and the end surface far away from the ceramic medium 3 is an S pole, thus, the direction of the magnetic force lines in the area between the positive electrode 1 and the negative electrode 2 is from the positive electrode 1 to the negative electrode 2 or approximately from the positive electrode 1 to the negative electrode 2, and is parallel or approximately parallel to the electric field direction, the solid line part with an arrow in the figure is the magnetic force lines, the dotted line part is the electric field lines, the electrode is replaced by the magnet, after the magnet is electrified, the magnet can be used as the electrode and also can generate a magnetic field, when the magnetic field direction is parallel to the electric field direction, when the moving direction of the plasma is consistent with the magnetic field direction, the ions can not be stressed and can continue to move along the original direction, once the moving direction of the ions has a component in the horizontal direction, the ions can be subject to the action of Lorentz force to carry out spiral movement and spirally move along the direction of the magnetic force lines, thereby gradually offsetting the force in the horizontal direction, and ensuring that all the plasmas are restricted in the space between the positive electrode and the negative electrode, the recombination rate of the plasma is reduced, the number of the plasma is increased, the diffusion is more uniform, the plasma can be diffused farther, and when the plasma is used for killing, the killing effect is improved.
The magnet electrode is a permanent magnet.
In addition, the ceramic dielectric 3 is provided with micropores, so that discharge is more moderate.
The negative electrode 2 is of a mesh structure, so that plasma can be favorably diffused to the negative electrode, and the plasma can be diffused downwards through mesh holes in the electrode.
Example 2: as shown in fig. 2, the present embodiment is different from embodiment 1 in that: the negative electrode 2 is a magnet electrode, the positive electrode 1, the negative electrode 2 and the ceramic dielectric 3 are positioned in the magnetic field area range of the magnet electrode, the end face of the magnet electrode close to the ceramic dielectric 3 is an S pole, and the end face far away from the ceramic dielectric 3 is an N pole.
The rest of the structure and the beneficial effects are basically the same as those of embodiment 1, and are not described again.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (5)
1. The utility model provides a DBD discharge device of area magnetism guide, includes parallel arrangement's positive electrode and negative electrode, still includes the insulating medium who sets up between positive electrode and negative electrode, still includes the high voltage power supply unit who connects between two electrodes, its characterized in that: the positive electrode or the negative electrode adopts a magnet electrode, the positive electrode, the negative electrode and the insulating medium are positioned in the magnetic field area range of the magnet electrode, when the positive electrode is the magnet electrode, the end face of the magnet electrode close to the insulating medium is an N pole, the end face far away from the insulating medium is an S pole, when the negative electrode is the magnet electrode, the end face of the magnet electrode close to the insulating medium is an S pole, and the end face far away from the insulating medium is an N pole.
2. The magnetically guided DBD discharge device according to claim 1, wherein: the insulating medium is ceramic medium, and the ceramic medium is suspended between the positive electrode and the negative electrode and is respectively arranged in parallel with the two electrodes.
3. The DBD discharge device according to claim 2, wherein: the ceramic medium is provided with micropores.
4. The DBD discharge device according to any one of claims 1 to 3, wherein: the magnet electrode is a permanent magnet.
5. The DBD discharge device according to any one of claims 1 to 3, wherein: the negative electrode is a mesh structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121727069.6U CN215871944U (en) | 2021-07-27 | 2021-07-27 | DBD discharging device with magnetic guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121727069.6U CN215871944U (en) | 2021-07-27 | 2021-07-27 | DBD discharging device with magnetic guide |
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| Publication Number | Publication Date |
|---|---|
| CN215871944U true CN215871944U (en) | 2022-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121727069.6U Active CN215871944U (en) | 2021-07-27 | 2021-07-27 | DBD discharging device with magnetic guide |
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| CN (1) | CN215871944U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115072828A (en) * | 2022-05-30 | 2022-09-20 | 西安电子科技大学 | Plasma activation water mist jet system based on gas-liquid two-phase flow |
-
2021
- 2021-07-27 CN CN202121727069.6U patent/CN215871944U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115072828A (en) * | 2022-05-30 | 2022-09-20 | 西安电子科技大学 | Plasma activation water mist jet system based on gas-liquid two-phase flow |
| CN115072828B (en) * | 2022-05-30 | 2024-01-16 | 西安电子科技大学 | Plasma activated water mist jet system based on gas-liquid two-phase flow |
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Effective date of registration: 20220602 Address after: 710076 room 1801, 18 / F, unit 1, building 1, Greenland Central Plaza - territorial sea block AB, No. 1, Jinye Road, high tech Zone, Xi'an, Shaanxi Province Patentee after: Xi'an shijiusui Information Technology Co.,Ltd. Address before: 710000 Room 301, office building, No. 58, Gongye Second Road, national civil aerospace industry base, Xi'an, Shaanxi Province Patentee before: Xi'an Tiantong Digital Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20231010 Address after: Room 1801, Block A, Greenland Linghai Building, No. 6 Jinye Road, Yanta District, Xi'an City, Shaanxi Province, 710076 Patentee after: XI'AN FENGYU INFORMATION TECHNOLOGY Co.,Ltd. Address before: 710076 room 1801, 18 / F, unit 1, building 1, Greenland Central Plaza - territorial sea block AB, No. 1, Jinye Road, high tech Zone, Xi'an, Shaanxi Province Patentee before: Xi'an shijiusui Information Technology Co.,Ltd. |