阅读说明：本技术 正负离子浆发生器 (Positive and negative ion slurry generator ) 是由 陈定强 朱文欢 王英萍 李昊宇 陈晓航 于 2021-11-09 设计创作，主要内容包括：本发明提供了一种正负离子浆发生器,包括介质板,介质板上设置有多个单元介质阻挡放电组件；单元介质阻挡放电组件包括第一单元介质阻挡放电结构和第二单元介质阻挡放电结构；第一单元介质阻挡放电结构包括第一暴露电极和第一埋入电极,第二单元介质阻挡放电结构包括第二埋入电极和第二暴露电极；第一暴露电极、第一埋入电极、第二埋入电极以及第二暴露电极设置在介质板上；第一埋入电极和第二埋入电极位于介质板内部,第一暴露电极和第二暴露电极位于介质板的表面。本发明通过优化电极结构设计以及埋入电极与暴露电极之间的配合方式解决了放电发生器净化效率低的问题,通过选用合适的介质材料以及电极排布方式解决了臭氧浓度高的问题。(The invention provides a positive and negative ion slurry generator, which comprises a dielectric slab, wherein a plurality of unit dielectric barrier discharge assemblies are arranged on the dielectric slab; the unit dielectric barrier discharge assembly comprises a first unit dielectric barrier discharge structure and a second unit dielectric barrier discharge structure; the first unit dielectric barrier discharge structure comprises a first exposed electrode and a first embedded electrode, and the second unit dielectric barrier discharge structure comprises a second embedded electrode and a second exposed electrode; the first exposed electrode, the first embedded electrode, the second embedded electrode and the second exposed electrode are arranged on the dielectric plate; the first embedded electrode and the second embedded electrode are positioned in the dielectric plate, and the first exposed electrode and the second exposed electrode are positioned on the surface of the dielectric plate. The invention solves the problem of low purification efficiency of the discharge generator by optimizing the structural design of the electrode and the matching mode between the embedded electrode and the exposed electrode, and solves the problem of high ozone concentration by selecting a proper dielectric material and an electrode arrangement mode.)

1. The positive and negative ion slurry generator is characterized by comprising a dielectric plate (1), wherein a plurality of unit dielectric barrier discharge assemblies (2) are arranged on the dielectric plate (1);

the unit dielectric barrier discharge assembly (2) comprises a first unit dielectric barrier discharge structure (201) and a second unit dielectric barrier discharge structure (202);

the first unit dielectric barrier discharge structure (201) comprises a first exposed electrode (2011) and a first embedded electrode (2012), and the second unit dielectric barrier discharge structure (202) comprises a second embedded electrode (2021) and a second exposed electrode (2022);

the first exposed electrode (2011), the first embedded electrode (2012), the second embedded electrode (2021) and the second exposed electrode (2022) are sequentially arranged on the dielectric plate (1) from top to bottom;

the first embedded electrode (2012) and the second embedded electrode (2021) are positioned inside the dielectric plate (1), and the first exposed electrode (2011) and the second exposed electrode (2022) are positioned on the surface of the dielectric plate (1).

2. The positive and negative ion slurry generator according to claim 1, wherein a plurality of said unit dielectric barrier discharge assemblies (2) are connected in parallel and arrayed, said unit dielectric barrier discharge assemblies (2) being connected to an end point of one end of said dielectric plate (1).

3. The positive-negative ion slurry generator according to claim 1, wherein the dielectric plate (1) is a PCB plate or a glass plate.

4. The positive-negative ion slurry generator according to claim 1, wherein each of the first embedded electrode (2012) and the second embedded electrode (2021) is formed of an array electrode having a zigzag shape.

5. The positive-negative ion slurry generator according to claim 4, wherein the first exposed electrode (2011) and the second exposed electrode (2022) are each constituted by a metal straight line.

6. The positive-negative ion slurry generator according to claim 5, wherein the first embedded electrode (2012) and the second embedded electrode (2021) are axisymmetrically distributed;

the first exposed electrode (2011), the second exposed electrode (2022) are each parallel to an axis of symmetry of the first embedded electrode (2012) and the second embedded electrode (2021).

7. The positive-negative ion slurry generator according to claim 6, wherein the metal coverage areas of the first exposed electrode (2011), the first embedded electrode (2012), the second embedded electrode (2021) and the second exposed electrode (2022) are designed in a complementary fit.

8. The positive-negative ion slurry generator according to claim 2, wherein the high-frequency AC voltage connected to the terminal has a frequency of 2 to 100kHz and a voltage of 1 to 10 kVAC.

9. The positive-negative ion slurry generator according to claim 1, wherein the coverage area of the first embedded electrode (2012) and the second embedded electrode (2021) is less than or equal to 10%, and the coverage area of the first exposed electrode (2011) and the second exposed electrode (2022) is greater than or equal to 70%.

10. The positive and negative ion slurry generator according to claim 1, wherein the ratio of the arrayed unit dielectric barrier discharge assemblies (2) is not less than 9.75/cm.

Technical Field

The invention relates to the technical field of air purification and environmental protection, in particular to a positive and negative ion slurry generator, and particularly relates to a normal-pressure high-frequency low-temperature multipole positive and negative ion slurry generator.

Background

Today, the rapid development of social and industrial levels brings about serious environmental pollution, among which air pollution is more serious. Air is used as a basic condition for living organisms, and the quality of the air directly determines the physical health of human beings. In order to effectively solve the problem of more and more serious air pollution, researchers in various countries develop a series of air purification technical means, which mainly comprise activated carbon adsorption, needle point and hairbrush discharge decomposition, however, the activated carbon adsorption can not fundamentally solve the pollution problem, and after the needle point and the hairbrush are used for many times, the tip is easily damaged, the service life is short, and the odor sample content is high.

Dielectric barrier discharge is a form of non-equilibrium gas discharge at normal temperature and pressure, and is typically constructed by separating two electrodes by at least one dielectric plate. Thus, when an alternating voltage of a certain frequency and amplitude is applied to the two electrodes, the air at the low voltage electrode will be broken down and ionized, thereby producing an ionic slurry. The ion slurry contains a large amount of high-energy electrons and substances with high reactivity, such as positive and negative ions, hydroxyl radicals, monatomic oxygen and the like, wherein, the high-energy electrons can physically collide with various molecules in the air to cause the breakage of intermolecular bonds, thereby achieving the purpose of removal, various free radicals have extremely strong chemical activity, so that a plurality of chemical reactions with high activation energy can be reacted to remove pollutants which are difficult to remove by the traditional means, however, the formation of discharges by strong ionization is often accompanied by the difficulty of solving, on the one hand, the discharge in the atmospheric air inevitably produces dozens or even hundreds of ppm of ozone, and as is known, the long-time exposure of human body to ozone with a certain concentration will cause great damage to the body, and the ozone concentration specified by the national standard can not exceed 0.1 mg/m.³(ii) a On the other hand, the strong ionization method has a limited effect of purifying air, and this is because the number of active particles and radicals generated by discharge is limited.

Patent document CN207835895U discloses a cathode of a plasma generator and a plasma generator, wherein the cathode of the plasma generator comprises: the base is hollow inside, and the first end of the base is used for being matched with the anode of the plasma generator; the first end of the heat conducting piece is arranged at the first end of the base and is used for being matched with the anode of the plasma generator, and the second end of the heat conducting piece is positioned in the base; at least one of the first end of the base and the first end of the heat conducting piece is provided with a buffer structure, and the buffer structure is used for being matched with the anode so as to reduce the instantaneous impact of a gas medium passing between the cathode and the anode on a plasma arc when the cathode is separated from the anode. However, this patent document still has a drawback that the purifying effect is limited and a large amount of ozone is generated.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a positive and negative ion slurry generator.

The positive and negative ion slurry generator provided by the invention comprises a dielectric plate, wherein a plurality of unit dielectric barrier discharge assemblies are arranged on the dielectric plate;

the unit dielectric barrier discharge assembly comprises a first unit dielectric barrier discharge structure and a second unit dielectric barrier discharge structure;

the first unit dielectric barrier discharge structure comprises a first exposed electrode and a first embedded electrode, and the second unit dielectric barrier discharge structure comprises a second embedded electrode and a second exposed electrode;

the first exposed electrode, the first embedded electrode, the second embedded electrode and the second exposed electrode are sequentially arranged on the dielectric plate from top to bottom;

the first embedded electrode and the second embedded electrode are positioned in the dielectric plate, and the first exposed electrode and the second exposed electrode are positioned on the surface of the dielectric plate.

Preferably, a plurality of the unit dielectric barrier discharge assemblies are connected in parallel and arranged in an array, and the unit dielectric barrier discharge assemblies are connected with an end point of one end of the dielectric plate.

Preferably, the dielectric plate is a PCB plate or a glass plate.

Preferably, the first embedded electrode and the second embedded electrode are each formed of an array electrode having a zigzag shape.

Preferably, the first exposed electrode and the second exposed electrode are each composed of a metal straight line.

Preferably, the first embedded electrode and the second embedded electrode are distributed in an axisymmetric manner;

the first exposed electrode and the second exposed electrode are parallel to the symmetry axis of the first embedded electrode and the second embedded electrode.

Preferably, the metal covering regions of the first exposed electrode, the first embedded electrode, the second embedded electrode and the second exposed electrode adopt complementary matching design.

Preferably, the frequency of the high-frequency alternating voltage connected with the end point is 2-100kHz, and the voltage is 1-10 kVAC.

Preferably, the coverage area ratio of the first embedded electrode to the second embedded electrode is less than or equal to 10%, and the coverage area ratio of the first exposed electrode to the second exposed electrode is greater than or equal to 70%.

Preferably, the occupation ratio of the arrayed unit dielectric barrier discharge assemblies is more than or equal to 9.75/cm.

Compared with the prior art, the invention has the following beneficial effects:

1. the invention solves the problem of low purification efficiency of the discharge generator by optimizing the structural design of the electrode and the matching mode between the embedded electrode and the exposed electrode;

2. the invention solves the problem of high ozone concentration by selecting proper dielectric materials and electrode arrangement modes;

3. the invention reduces the metal coverage area of the exposed electrode as much as possible and greatly improves the distribution range of active particles generated by discharge.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a block diagram of a positive and negative ion slurry generator of the present invention;

FIG. 2 is a schematic diagram of the positive and negative ion plasma generator of the present invention as a dielectric barrier discharge assembly for highlighting display units.

The figures show that:

first buried electrode 2012 of dielectric plate 1

Unit dielectric barrier discharge assembly 2 second unit dielectric barrier discharge structure 202

The first unit dielectric barrier discharge structure 201 and the second buried electrode 2021

First exposed electrode 2011 second exposed electrode 2022

Detailed Description

The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.

Example 1:

the embodiment provides a positive and negative ion slurry generator, which includes a dielectric slab 1, a plurality of unit dielectric barrier discharge assemblies 2 are arranged on the dielectric slab 1, each unit dielectric barrier discharge assembly 2 includes a first unit dielectric barrier discharge structure 201 and a second unit dielectric barrier discharge structure 202, each first unit dielectric barrier discharge structure 201 includes a first exposed electrode 2011 and a first embedded electrode 2012, each second unit dielectric barrier discharge structure 202 includes a second embedded electrode 2021 and a second exposed electrode 2022, each first exposed electrode 2011, each first embedded electrode 2012, each second embedded electrode 2021 and each second exposed electrode 2022 are sequentially arranged on the dielectric slab 1 under self-damage, each first embedded electrode 2012 and each second embedded electrode 2021 are located inside the dielectric slab 1, and each first exposed electrode 2011 and each second exposed electrode 2022 are located on the surface of the dielectric slab 1. The dielectric plate 1 is a PCB plate or a glass plate.

The plurality of unit dielectric barrier discharge assemblies 2 are connected in parallel and arranged in an array mode, the unit dielectric barrier discharge assemblies 2 are connected with an end point of one end of the dielectric plate 1, the frequency of high-frequency alternating voltage connected with the end point is 2-100kHz, and the voltage is 1-10 kVAC. The occupation ratio of the arrayed unit dielectric barrier discharge assemblies 2 is more than or equal to 9.75/cm.

Each of the first embedded electrode 2012 and the second embedded electrode 2021 is formed of an array electrode having a zigzag shape. The first exposed electrode 2011 and the second exposed electrode 2022 are each constituted by a metal straight line. The first embedded electrode 2012 and the second embedded electrode 2021 are axially symmetrically distributed, and the first exposed electrode 2011 and the second exposed electrode 2022 are both parallel to the symmetry axis of the first embedded electrode 2012 and the second embedded electrode 2021. The metal covering regions of the first exposed electrode 2011, the first embedded electrode 2012, the second embedded electrode 2021 and the second exposed electrode 2022 are designed to be complementary. The coverage area of the first embedded electrode 2012 and the second embedded electrode 2021 is less than or equal to 10%, and the coverage area of the first exposed electrode 2011 and the second exposed electrode 2022 is more than or equal to 70%.

Example 2:

those skilled in the art will understand this embodiment as a more specific description of embodiment 1.

The embodiment provides a normal-pressure high-frequency low-temperature multipolar positive and negative ion slurry generator which comprises an insulating dielectric plate with a certain thickness, wherein the dielectric plate comprises two pairs of dielectric barrier discharge pairs consisting of four layers of electrodes, namely an exposed electrode, an embedded electrode and an exposed electrode from top to bottom, and the electrodes in each layer are separated by a medium with a certain thickness. The dielectric plate can be a PCB plate and a glass plate, wherein the PCB plate is generally a multilayer plate, the electrode metal wire can be selected by a gilding process, and the glass plate generator can directly obtain the electrode by adopting a method of carrying out patterning on the surface of the glass according to requirements.

The four-layer electrode comprises two embedded poles and two exposed poles, the embedded poles of the two pairs of dielectric barrier discharge structures are positioned in the dielectric plate, and the exposed poles are positioned on the surface of the dielectric plate. The embedded electrode is composed of an array electrode with a saw-tooth shape, and is axially and symmetrically distributed in each unit interval, and the exposed electrode is composed of a metal straight line and is parallel to an axis in each unit interval corresponding to the embedded electrode. Wherein, the metal covering regions of the embedded electrode and the exposed electrode in each unit adopt complementary matching design. The coverage area of the embedded electrode is less than or equal to 10 percent, and the coverage area of the exposed electrode is more than or equal to 70 percent. The proportion of the arrayed units is more than or equal to 9.75/cm.

In the cell discharge, in order to increase the contact area (discharge area) between the dielectric surface and the air, the coverage area of the buried electrode is increased as much as possible, and the coverage area of the exposed electrode is decreased. The embedded electrode and the exposed electrode in each unit form a pair of unit dielectric barrier discharge structures, and a plurality of groups of units on the dielectric plate form an arrayed dielectric barrier discharge structure, and the arrayed unit structures are connected in parallel and connected with an end point at one end of the dielectric plate. When a high-frequency high-voltage alternating-current power supply is connected to the terminal, air in a region on one side of the exposed electrode above the embedded electrode in each cell on the dielectric plate is ionized to generate a large amount of energetic electrons and highly reactive substances (positive and negative ions, hydroxyl radicals, monatomic oxygen, etc.). The frequency of the high-frequency alternating voltage is 2-100kHz, and the voltage is 1-10 kVAC.

Example 3:

those skilled in the art will understand this embodiment as a more specific description of embodiment 1.

The embodiment provides a low-temperature multipolar positive and negative ion slurry generator, four layers of electrode patterns with characteristic shapes and matching modes are drawn on a PCB with a multi-layer circuit function, the whole discharge generator is formed in an arrayed unit discharge mode, large-area and uniform discharge is facilitated to be formed, through the complementary design between an embedded electrode and an exposed electrode, the metal coverage area of the embedded electrode in the unit is increased as much as possible, the metal coverage area of the exposed electrode is reduced as much as possible, the distribution range of active particles generated by discharge is greatly improved, and gold plating operation is carried out on metal on four electrode layers.

Further, by constructing the buried electrode with tip arraying, the field intensity of the tip is greatly increased, which is beneficial to the generation of the discharge form of strong ionized air.

Finally, the generation quantity of positive and negative oxygen ions in the whole strong ionization generator is increased, and the proportion of the positive and negative oxygen ions can reach 1: 1-1: 4.

in addition, no odor sample generation was detected on the surface of the generator by the ozone tester in the operating state.

The above results demonstrate that the ion slurry generator has excellent air purification performance and perfectly solves the problems of the previous generators.

The invention solves the problem of low purification efficiency of the discharge generator by optimizing the structural design of the electrode and the matching mode between the embedded electrode and the exposed electrode, and solves the problem of high ozone concentration by selecting a proper dielectric material and an electrode arrangement mode.

In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.