WO2019174365A1

WO2019174365A1 - Electrostatic catalytic device and air purifier

Info

Publication number: WO2019174365A1
Application number: PCT/CN2018/125337
Authority: WO
Inventors: 黄宇君
Original assignee: 广东美的环境电器制造有限公司; 美的集团股份有限公司
Priority date: 2018-03-12
Filing date: 2018-12-29
Publication date: 2019-09-19
Also published as: CN207756283U

Abstract

Disclosed are an electrostatic catalytic device and an air purifier, wherein the electrostatic catalytic device comprises an insulating frame and a plurality of electrostatic catalytic plates. A cavity, and an air inlet and an air outlet communicating the cavity and the outside of the insulating frame are formed in the insulating frame. The plurality of electrostatic catalytic plates are connected to the insulating frame, are located in the cavity, and are arranged at intervals; each of the electrostatic catalytic plates comprises an electrically conductive plate and a catalytic plate attached to the electrically conductive plate; and a first end face of each of the electrostatic catalytic plates faces the air inlet, and a second end face, facing away from the first end face, of each of the electrostatic catalytic plates faces the air outlet.

Description

Electrostatic catalytic device and air purifier

The present application claims priority to Chinese Patent Application No. 201820339070.3, filed on March 12, 2018, the entire disclosure of which is incorporated herein by reference. .

Technical field

The present application relates to the field of air purification, and in particular to an electrostatic catalytic device and an air purifier including the same.

Background technique

At present, with the deterioration of the environment and the increasing air pollution such as smog, indoor air environmental management has become a hot topic, especially air purification products have become the growth point of household appliances that have sprung up in recent years. The existing air purifier adopts the method of electrostatic dust removal, and usually uses a high-voltage electrostatic purification dust removal module, which uses tungsten wire as a medium, and the working principle is: electrically separated to make the dust-containing gas electrically separated when passing through a high-voltage electrostatic field. After the negative combination of the dust particles and the negative ions, the anode surface is discharged and deposited, thereby achieving electrostatic dust removal, but its dust removal and purification effect is poor.

In view of this, it is necessary to provide a novel electrostatic catalytic device to solve or at least alleviate the above technical drawbacks.

Application content

The main object of the present application is to provide an electrostatic catalytic device which aims to solve the technical problem of poor dust removal and purification effect of the high-voltage electrostatic cleaning and dust removing module in the prior art.

To achieve the above object, the present application provides an electrostatic catalytic device, wherein the electrostatic catalytic device comprises:

An insulating frame, the insulating frame is formed with a cavity and an air inlet and an air outlet connecting the cavity and the outside of the insulating frame;

a plurality of electrostatic catalytic plates connected to the insulating frame and located in the cavity, the plurality of electrostatic catalytic plates being spaced apart, the electrostatic catalytic plate comprising a conductive plate and abutting against the A catalytic plate of the conductive plate, one end surface of the electrostatic catalytic plate faces the air inlet, and the other end surface of the electrostatic catalytic plate facing the end surface faces the air outlet.

Optionally, the catalytic plate is a quartz glass piece loaded with a catalyst.

Optionally, the catalyst comprises a mixture of manganese dioxide and water, or the catalyst comprises a mixture of titanium dioxide P25 and water.

Optionally, a plurality of card slots for clamping the electrostatic catalytic plate are disposed in the insulating frame.

Optionally, the electrostatic catalytic plate comprises a first electrostatic catalytic plate and a second electrostatic catalytic plate, wherein the conductive plate in the first electrostatic catalytic plate protrudes from the first end of the insulating frame, the second electrostatic catalysis A conductive plate in the plate protrudes from the second end of the insulating frame, and a first end of the insulating frame is disposed opposite to the second end of the insulating frame.

Optionally, the conductive plate includes an electrode tip protruding from a first end of the insulating frame or a second end of the insulating frame.

Optionally, the first electrostatic catalytic plate and the second electrostatic catalytic plate are alternately disposed.

Optionally, the conductive plate and the catalytic plate are respectively connected to the insulating frame by a threaded fastener.

Optionally, two ends of the insulating body are respectively provided with a fixing plate, and the fixing plate is provided with a mounting hole.

Further, the present application provides an air purifier, wherein the air purifier further includes the above-described electrostatic catalytic device.

In the above technical solution of the present application, since the plurality of electrostatic catalytic plates are arranged at intervals, the electrostatic catalytic plate comprises a conductive plate and a catalytic plate, so when the gas to be purified enters from the air inlet and flows out from the air outlet, it passes through the electrostatic catalytic plate. The intervening channels can be attached to the catalytic plate by the positive and negative charges of the conductive plates, and the pollution source attached to the catalytic plate can be washed, and the catalytic plate can be easily disassembled and easily recyclable. Moreover, the electrostatic positive and negative ions strike the catalytic plate to activate the catalytic performance, so that the electrocatalysis is superior to the electric purification, so that the capturing efficiency of the particulate matter can be effectively improved, and the gas (for example, cigarette gas) can be catalyzed, thereby removing the odor, and is particularly suitable for removing the odor of the cigarette. The electrostatic catalytic device has an efficient gas purification capability. In addition, a plurality of spaced-apart electrostatic catalytic plates simultaneously divide the electric field into a plurality of air passage regions, prolonging the length of the air flow path, thereby effectively improving the capturing efficiency of the particulate matter; in addition, the electrostatic catalytic device is compact in structure. The space layout is reasonable and suitable for wide promotion.

DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings to be used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present application, and those skilled in the art can obtain other drawings according to the structures shown in the drawings without any creative work.

1 is a front view of an electrostatic catalytic device according to an embodiment of the present application;

2 is a plan view of a conductive plate of an embodiment of the present application;

3 is a graph showing a particle removal rate test of an electrostatic catalytic device according to an embodiment of the present application when an AC voltage of 110 V is connected;

4 is a graph showing a particle removal rate test of an electrostatic catalytic device according to an embodiment of the present application when a 12 V DC voltage is applied.

Description of the reference numerals:

标号 Label	名称 Name	标号 Label	名称 Name
11	绝缘框架 Insulating frame	22	导电板 Conductive plate
33	催化板 Catalytic plate	44	第一静电催化板First electrostatic catalytic plate
55	第二静电催化板 Second electrostatic catalytic plate	66	固定板 Fixed plate
77	卡槽 Card slot	1111	出气口 Air outlet
21twenty one	电极端头 Electrode tip

The implementation, functional features and advantages of the present application will be further described with reference to the accompanying drawings.

detailed description

The technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the drawings in the embodiments of the present application. It is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without the inventive work are all within the scope of the present application.

It should be noted that all directional indications (such as up, down, ...) in the embodiments of the present application are only used to explain the relative positional relationship, the motion situation, and the like between the components in a certain posture (as shown in the drawing). If the particular pose changes, the directional indication also changes accordingly.

In addition, the descriptions of "first", "second", and the like in this application are used for descriptive purposes only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" or "second" may include at least one of the features, either explicitly or implicitly.

Moreover, the technical solutions between the various embodiments of the present application may be combined with each other, but must be based on the realization of those skilled in the art, and the combination of technical solutions should be considered when the combination of technical solutions is contradictory or impossible to implement. It does not exist and is not covered by the scope of protection required by this application.

Referring to FIG. 1 and FIG. 2, according to an aspect of the present application, an electrostatic catalytic device is provided, wherein the electrostatic catalytic device comprises an insulating frame 1 and a plurality of electrostatic catalytic plates, and the insulating frame 1 is formed with a cavity and a connecting cavity and insulation. An air inlet and an air outlet 11 outside the frame 1, a plurality of electrostatic catalytic plates are connected to the insulating frame 1 and located in the cavity, a plurality of electrostatic catalytic plates are spaced apart (preferably arranged in parallel), and each electrostatic catalytic plate comprises a conductive plate 2 and a catalytic plate 3 abutting against the conductive plate 2, one end surface of the electrostatic catalytic plate faces the air inlet, and the other end surface of the electrostatic catalytic plate facing away from the end surface faces the air outlet 11. The air inlet is opposite to the air outlet 11 . The conductive plate 2 is used to transfer a potential to form an electric field to sufficiently activate the catalytic plate 3, and the insulating frame 1 is used to increase the breakdown voltage to improve the purification efficiency.

In the above technical solution of the present application, since the plurality of electrostatic catalytic plates are spaced apart, the electrostatic catalytic plate includes the conductive plate 2 and the catalytic plate 3, so that when the gas to be purified enters from the air inlet and flows out from the air outlet 11, the static electricity passes through The channels between the catalytic plates can be attached to the catalytic plate 3 by the positive and negative charges of the conductive plates 2, and the pollution source attached to the catalytic plate 3 can be washed, and the catalytic plate 3 is easy. The disassembly and assembly can be reused, and the electrostatic positive and negative ions strike the catalytic plate 3 to activate the catalytic performance, so that the electrocatalysis is superior to the electric purification, so that the capturing efficiency of the particulate matter can be effectively improved, and the gas (for example, cigarette gas) can be catalyzed, thereby removing The odor is especially suitable for removing the odor of cigarettes, so that the electrostatic catalytic device has an efficient gas purifying ability. In addition, a plurality of spaced-apart electrostatic catalytic plates simultaneously divide the electric field into a plurality of air passage regions, prolonging the length of the air flow path, thereby effectively improving the capturing efficiency of the particulate matter; in addition, the electrostatic catalytic device is compact in structure. The space layout is reasonable and suitable for wide promotion.

The insulating frame 1 may be an insulating material with a CTI exceeding 600 (CTI indicates a tracking index compared to a tracking resistance), such as an unsaturated polyester fiberglass cloth molding plate, etc., and the conductive plate 2 may be aluminum, copper or the like. A metal or carbon layer with excellent electrical conductivity.

According to a specific embodiment of the present application, the catalytic plate 3 is a quartz glass piece loaded with a catalyst. However, the present application is not limited thereto, and if other ordinary glass or other materials are used instead of the quartz glass sheet, the desired effect can be achieved, and it will fall within the scope of protection of the present application. The catalyst may comprise a mixture of manganese dioxide and water or a mixture of titanium dioxide P25 and water. Among them, titanium dioxide P25 is a nano-scale white powder, the surface of the hydroxyl group makes it hydrophilic, and the product does not have any pigment characteristics. P refers to the Particle Size, which is the particle size. P25 is titanium dioxide having an anatase crystal and a rutile crystal mixed phase having an average particle diameter of 25 nm. In the specific operation, 3g of manganese dioxide or P25 and other catalytic components can be poured into 1000ml of pure water to prepare a solution, then the quartz glass piece is placed in the solution and stirred for about 4h, and then the quartz glass piece soaked by the solution is taken out. It was placed in a high temperature vacuum oven at 100 ° C for about 12 h of baking, and finally prepared into a catalytic plate 3 (catalytic block). Of course, it can be understood that this is only a specific example of preparing the catalytic plate 3. In the case where the prepared catalytic plate 3 can satisfy the catalytic demand, the parameters of the above materials, the soaking time and the baking temperature can be appropriately adjusted. Changes, modified solutions will also fall within the scope of this application.

According to a preferred embodiment of the present application, a plurality of card slots 7 for holding the electrostatic catalytic plates are disposed in the insulating frame 1, which can improve the stability of the insulating frame 1 to fix the conductive plates 2 and the catalytic plates 3. The conductive plate 2 and the catalytic plate 3 may be connected to the insulating frame 1 by screw fasteners, respectively, or may be fixed by a similar fastening structure such as a rivet or the like. Alternatively, the conductive plate 2, the catalytic plate 3 and the insulating frame 1 may be combined into a single integral, inseparable integral part by a certain process, which may be an in-mold insert molding or other similar process.

In addition, the electrostatic catalytic plate includes a first electrostatic catalytic plate 4 and a second electrostatic catalytic plate 5, the first electrostatic catalytic plate 4 includes a conductive plate 2 and a catalytic plate 3, and the second electrostatic catalytic plate 5 also includes a conductive plate 2 and a catalytic The plate 3, the conductive plate 2 in the first electrostatic catalytic plate 4 protrudes from the first end (for example, the upper end) of the insulating frame 1 and can be used for positive charge, and the conductive plate 2 in the second electrostatic catalytic plate 5 protrudes from the insulating frame 1 The second end (for example, the lower end) may be used to receive a negative charge, or the conductive plate 2 in the first electrostatic catalytic plate 4 may protrude from the first end (for example, the upper end) of the insulating frame 1 to be used for negative charge, and second The conductive plate 2 in the electrostatic catalytic plate 5 protrudes from the second end (for example, the lower end) of the insulating frame 1 and can be used for positive charging. The first end of the insulating frame 1 is disposed opposite to the second end of the insulating frame. Alternatively, the conductive plate 2 includes an electrode tip 21 that protrudes from a first end (for example, an upper end) of the insulating frame 1 or a second end (for example, a lower end) of the insulating frame 1. The first electrostatic catalytic plate 4 and the second electrostatic catalytic plate 5 may be alternately disposed.

In addition, two ends (for example, upper and lower ends) of the insulating body are respectively provided with a fixing plate 6, and the fixing plate 6 is provided with a mounting hole to facilitate mounting the electrostatic catalytic device to a related device (for example, an air purifier).

The electrostatic catalytic device provided by the present application is tested as follows:

(1) Referring to Figure 3, the simulation test is carried out using a 30m3 cabin. The electrostatic catalytic device is installed at the edge of the air outlet of the cabin to access the 110V AC voltage for dust removal and purification test. The particle removal rate can reach 88%.

(2) Referring to Figure 4, a 30m3 cabin is used for the simulation test. The electrostatic catalytic loading is applied to the edge of the air outlet of the cabin to access the 12V DC voltage for dust removal and purification test. The particle removal rate can reach 98%.

Moreover, after testing and testing, the electrostatic catalytic device can remove various chemical substances in cigarettes, and has high safety and purification effect.

According to another aspect of the present application, there is also provided an air purifier, wherein the air purifier further comprises the above-described electrostatic catalytic device. Since the present air purifier adopts all the technical solutions of the electrostatic catalytic device of all the above embodiments, the present air purifier has at least all the effects brought about by the electrostatic catalytic device of the technical solution of the above embodiment, and is no longer one by one. Narration.

The above is only a preferred embodiment of the present application, and is not intended to limit the scope of the patents of the present application, and the equivalent structural transformations made by the present application and the contents of the drawings, or directly/indirectly The relevant technical fields are all included in the patent protection scope of the present application.

Claims

An electrostatic catalytic device, wherein the electrostatic catalytic device comprises:

An insulating frame, the insulating frame is formed with a cavity and an air inlet and an air outlet connecting the cavity and the outside of the insulating frame;

a plurality of electrostatic catalytic plates connected to the insulating frame and located in the cavity, the plurality of electrostatic catalytic plates being spaced apart, the electrostatic catalytic plate comprising a conductive plate and abutting against the The catalytic plate of the conductive plate, the first end surface of the electrostatic catalytic plate faces the air inlet, and the second end surface of the electrostatic catalytic plate facing the first end surface faces the air outlet.
The electrostatic catalytic device according to claim 1, wherein the catalytic plate is a quartz glass plate loaded with a catalyst.
The electrostatic catalytic device according to claim 2, wherein the catalyst comprises a mixture of manganese dioxide and water, or the catalyst comprises a mixture of titanium dioxide P25 and water.
The electrostatic catalytic device according to any one of claims 1 to 3, wherein a plurality of chucks for holding the electrostatic catalytic plates are disposed in the insulating frame.
The electrostatic catalytic device according to any one of claims 1 to 3, wherein the electrostatic catalytic plate comprises a first electrostatic catalytic plate and a second electrostatic catalytic plate, and a conductive plate in the first electrostatic catalytic plate protrudes from a first end of the insulating frame, a conductive plate in the second electrostatic catalytic plate protrudes from a second end of the insulating frame, and a first end of the insulating frame is opposite to a second end of the insulating frame .
The electrostatic catalytic device according to claim 5, wherein the conductive plate comprises an electrode tip protruding from a first end of the insulating frame or a second end of the insulating frame.
The electrostatic catalytic device according to claim 5, wherein the first electrostatic catalytic plate and the second electrostatic catalytic plate are alternately disposed.
The electrostatic catalytic device according to any one of claims 1 to 3, wherein the conductive plate and the catalytic plate are respectively connected to the insulating frame by a threaded fastener.
The electrostatic catalytic device according to any one of claims 1 to 3, wherein two ends of the insulating body are respectively provided with fixing plates, and the fixing plates are provided with mounting holes.
An air purifier, wherein the air purifier is provided with the electrostatic catalytic device according to any one of claims 1-9.