CN210089019U - A nano-ion generating device with a filter screen - Google Patents

Abstract

The utility model relates to a nano-ion generating device with a filter screen, which mainly comprises a nano-ion generator, an opposite electrode plate, a filter screen and a high-voltage power supply module; the nano-ion generator comprises at least one ion generating head, which is used for discharging A large amount of nano-ions and ultraviolet light are generated to charge fine particles such as PM2.5 or aggregate into large particles, and activate the photocatalyst on the opposite electrode plate to decompose formaldehyde and VOC, sterilize, disinfect, etc.; the opposite electrode plate is used for Coarsely collect charged particulate matter and eliminate the charge of charged particulate matter in time; the filter screen composed of activated carbon or foam metal and other coarse-efficiency filters is used to efficiently collect charged particulate matter; high-voltage power supply module is a nano-ion generator and The opposite electrode plate provides the corresponding power supply. The device can not only efficiently purify PM2.5 and other fine particles, but also decompose formaldehyde, VOC, bacteria, viruses and other pollutants. It has no ozone, no consumables, small wind resistance, large dust holding capacity, efficient purification and simple structure Features.

Description

A nano-ion generating device with a filter screen

technical field

The utility model relates to a nano-ion generating device with a filter screen, belonging to the field of air purification, in particular to the field of a purifier with no ozone, no consumables, low resistance and high efficiency.

Background technique

As people pay more attention to air quality, air purifiers have received more and more attention. There are many types of air purifiers on the market, and the purification technologies used have their own characteristics. At present, the most commonly used and mature purification technology is to use HEPA high-efficiency filter, but HEPA filter is a consumable material, which is not only troublesome to replace, but also needs to be equipped with a fan due to its large resistance, resulting in high noise and high power consumption of the product.

Electrostatic dust removal technology can overcome the shortcomings of HEPA filters. Electrostatic precipitator is a dust collection method that uses an electrostatic field to ionize the gas so that the dust particles are charged and adsorbed on the electrode, and there are no consumables. However, it has many disadvantages such as easy to generate a large amount of ozone, bulky, and small dust holding capacity. A few days ago, based on electrostatic precipitator technology, some researchers proposed a method that uses an electric field to charge fine particles in the air and then set an electrostatic field to polarize the coarse filter. Technology for the purification of fine particulate matter. However, this technology adopts the method of corona discharge of multiple or multiple electrode needles, which still has disadvantages such as generating a large amount of ozone and decreasing the filtration efficiency after long-term use. Moreover, this purification technology can only remove fine particles such as PM2.5, but it is powerless to formaldehyde, VOC, bacteria, viruses, etc.

Utility model content

In order to make up for the deficiencies of the prior art, the utility model provides a nano-ion generating device with a filter screen.

The technical scheme adopted by the utility model is:

A nano-ion generating device with a filter screen, comprising a nano-ion generator, the nano-ion generator comprises at least one ion generating head and a hollow porous high-voltage electrode plate, the ion-generating head is fixedly arranged on the high-voltage electrode It also includes an opposite electrode plate and a filter screen, and the opposite electrode plate and the filter screen are arranged downstream of the nano-ion generator along the airflow direction.

Further, the ion generating head is fixed on the high voltage electrode plate in parallel.

Further, both the high-voltage electrode plate and the opposite electrode plate are electrically connected to the high-voltage power supply module.

Further, the opposing electrode plate is disposed upstream or downstream of the filter screen, or is embedded in the filter screen.

Further, it also includes a casing, the inner wall of the casing forms an air flow channel, the nano-ion generator, the opposite electrode plate and the filter screen are respectively fixed and arranged in the air flow channel, and the air flow channel is respectively connected with the air inlet. connected to the air outlet.

Further, the nano ion generator is loaded with negative high voltage or positive high voltage; the opposite electrode plate is grounded or loaded with high voltage opposite to the high voltage loaded by the nano ion generator.

Further, the opposite electrode plate is a circular ring or a hollowed-out porous conductor.

Further, the opposing electrode plate is covered with photocatalyst materials such as titanium dioxide.

Further, the ion generating head is composed of a plurality of corrosion-resistant conductors that can easily excite positive and negative ions.

Further, the filter screen is composed of a coarse filter screen such as activated carbon or foamed metal.

The above technical scheme has the following beneficial effects:

The utility model relates to a nano-ion generating device with a filter screen, comprising: a nano-ion generator, which comprises at least one ion generating head, and the ion generating head is composed of a plurality of corrosion-resistant conductors ( Such as carbon fiber, fullerene, graphene fiber, etc.), it is used to discharge a large number of nano-ions and ultraviolet light, so that fine particles such as PM2.5 are charged or aggregated into large particles, and the photocatalyst on the opposite electrode plate is activated. To decompose formaldehyde and VOC, sterilization, disinfection, etc.; at the same time, the opposite electrode plate is used to collect the charged particulate matter in a rough way, and eliminate the charge of the charged particulate matter in time; In order to collect the charged particles efficiently; the high-voltage power supply module provides the corresponding power supply for the nano-ion generator and the opposite electrode plate respectively. The nano-ion generator with filter screen can not only efficiently purify PM2.5 and other fine particles, but also decompose formaldehyde, VOC, bacteria, viruses and other pollutants. It has no ozone, no consumables, small wind resistance, and dust holding capacity. It has the characteristics of large, efficient purification and simple structure.

Description of drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only described in the present utility model. For some of the embodiments, those of ordinary skill in the art can also obtain other drawings according to these drawings.

1 is a schematic structural diagram of a nano-ion generating device with a filter screen in Embodiment 1;

Fig. 2 is the structural representation of a kind of nano-ion generating device with filter screen in the second embodiment;

3 is a schematic structural diagram of a nano-ion generating device with a filter screen in the third embodiment;

4 is a schematic structural diagram of a nano-ion generating device with a filter screen in the fourth embodiment;

5 is a schematic cross-sectional view of a single annular opposing electrode plate;

6 is a schematic cross-sectional view of a coaxial multi-ring type opposing electrode plate;

7 is a schematic cross-sectional view of a porous opposed electrode plate;

8 is a schematic cross-sectional view of the ion generating head.

In the figure: 1- shell; 2- air outlet; 3- filter screen; 4- opposite electrode plate; 41- electrode dust plate; 42- fixing part; 43- photocatalyst coating; 5- air flow channel; 6- Nano-ion generator; 61-ion generating head; 611-discharge part; 612-insulation fixing part; 613-connecting wire; 62-high voltage electrode plate; 7-air inlet; 8-high voltage wire; 9-high voltage power supply module; 10 - Conductive thread.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model more clear, the present utility model will be further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts of the present invention.

Example 1:

Referring to FIG. 1 , the present embodiment provides a nano-ion generating device with a filter screen, the main components of which include: a casing 1 , a nano-ion generator 6 , an opposite electrode plate 4 , a filter screen 3 and a high-voltage power supply module 9 .

Further, the nano-ion generator 6 includes at least one ion generating head 61 and a hollow and porous high-voltage electrode plate 62, and the ion generating head 61 is fixedly arranged on the high-voltage electrode plate 62; it also includes an opposite electrode plate 4 And the filter screen 3, the opposite electrode plate 4 and the filter screen 3 are arranged downstream of the nano-ion generator 6 along the airflow direction.

Further, the ion generating head 61 is fixed on the high voltage electrode plate 62 in parallel.

Further, the high-voltage electrode plate 62 and the opposite electrode plate 4 are both electrically connected to the high-voltage power supply module 9 .

Specifically, the high-voltage power module 9 is electrically connected to the nano-ion generator 6 through a high-voltage wire 8, and the high-voltage power module 9 is electrically connected to the opposite electrode plate 4 through a conductive wire 10 to provide the corresponding power supply.

Specifically, the nano-ion generator 6 is composed of at least one ion generating head 61 in parallel, so as to increase the generation amount of nano-ions (negative ions or positive ions) and ultraviolet light, so that fine particles such as PM2.5 can be charged or aggregated into Large particles, and activate the photocatalyst to decompose formaldehyde and VOC, sterilization, disinfection, etc., the nano-ion generator 6 is electrically connected to the high-voltage power module 9 through the hollowed-out porous high-voltage electrode plate 62 .

Referring to FIG. 8 , further, the ion generating head 61 includes a discharge part 611 , an insulating fixing part 612 and a connecting wire 613 . The discharge portion 611 is fixed and electrically connected to the connecting wire 613 through the insulating fixing portion 612 . The connecting wires 613 are electrically connected to the hollow and porous high-voltage electrode plate 62 by welding or the like. The insulating fixing portion 612 is composed of insulating materials such as silica gel and Teflon, and is used to fix and connect the discharge portion 611 and the connecting wire 613, insulate one end of the discharge portion 611, and prevent it from accumulating dust.

Specifically, the discharge part 611 of the ion generating head 61 is composed of a plurality of corrosion-resistant conductors that are easy to excite positive and negative ions, so as to increase the generation of nano-ions (negative ions or positive ions) and ultraviolet light, and reduce ozone amount of occurrence.

Specifically, the discharge portion 611 is composed of a plurality of carbon fibers, fullerenes, graphene fibers, and the like.

Further, it also includes a casing 1, the inner wall of the casing 1 forms an air flow channel 5, the nano ion generator 6, the opposite electrode plate 4 and the filter screen 3 are respectively fixed and arranged in the air flow channel 5, and all the The airflow channel 5 is communicated with the air inlet 7 and the air outlet 2 respectively.

Specifically, the casing 1 can be opened to facilitate the disassembly and installation of the nano-ion generator 6 , the filter screen 3 and the opposite electrode plate 4 .

Further, the nano ion generator 6 is loaded with negative high voltage or positive high voltage; the opposite electrode plate 4 is grounded or loaded with a high voltage opposite to the high voltage loaded by the nano ion generator 6. .

Referring to FIG. 5 or 6 , further, the opposite electrode plate 4 is a circular conductor with an electrode dust depositing plate 41 arranged on the outer periphery thereof, and is fixed on the casing 1 by a fixing member 42 , or is directly clamped and fixed on the casing 1 . on the housing 1.

Referring to FIG. 7 , preferably, the opposite electrode plate 4 is a hollow and porous conductor.

Preferably, the opposing electrode plate 4 is covered with a photocatalyst coating 43 such as titanium dioxide, and a photocatalytic reaction occurs under the irradiation of ultraviolet light generated by the discharge of the ion generating head 61 to generate a large number of active substances such as hydroxyl radicals, hydrogen peroxide, and holes. , to oxidatively decompose formaldehyde and VOC, sterilization, disinfection, etc. At the same time, the generated ultraviolet light also has a good sterilization and disinfection effect.

Further, along the airflow direction, the filter screen 3 is composed of a coarse filter screen such as activated carbon or foamed metal, and is arranged downstream of the nano-ion generator 6 and the opposite electrode plate 4 .

Specifically, a high-voltage electric field is applied between the nano-ion generator 6 and the opposite electrode plate 4, and the filter screen 3 is polarized due to the action of the high-voltage electric field, so as to efficiently collect the charged particles.

Specifically, the opposing electrode plate 4 and the high-voltage electrode plate 62 both adopt a grid-like design, so that the air in the airflow channel 5 can circulate therefrom.

Preferably, the high-voltage electrode plate 62 can adopt the form of porous design, strip grille design, etc., so as to facilitate airflow and reduce wind resistance.

Preferably, a low-resistance, coarse-efficiency filter screen is arranged at the air inlet 7 to filter out hair, large particles of dust, etc., and protect the working stability of the nano-ion generator 6 .

Preferably, a fan can be arranged in the airflow channel 5 to increase the air supply pressure.

Embodiment 2:

Referring to FIG. 2 , on the basis of Embodiment 1, in this embodiment, the opposing electrode plate 4 is embedded in the filter screen 3 to strengthen the polarization of the filter screen 3 and efficiently eliminate charged particulate matter The charge keeps the filtration efficiency continuous and stable.

Embodiment three:

Referring to FIG. 3 , on the basis of Embodiment 1, in this embodiment, the opposite electrode plate 4 is placed downstream of the filter screen 3 along the airflow direction.

Embodiment 4:

Referring to FIG. 4 , on the basis of the first embodiment, in this embodiment, the filter screen 3 is made of a conductive coarse filter screen such as foam metal, which is directly electrically connected to the high-voltage power supply module 9 through the conductive wire 10 , at this time, the filter screen 3 also plays the role of the opposite electrode plate 4, and the independent opposite electrode plate 4 is no longer provided.

Preferably, carbon fiber bundles (12K) are selected for the discharge part 611 in the present invention, the voltage loaded by the high-voltage electrode is -5KV (or +5KV), the opposite electrode plate 4 is coated with photocatalyst material titanium dioxide, and the air volume in the airflow channel 5 is is 15m ³ /h, the filter screen 3 is an activated carbon coarse filter screen or a foam metal coarse filter screen, and the ozone concentration in the experimental environment is 30ppb.

The specific experimental data are shown in Table 1:

Specifically, the data in the comparative documents in the background art are also reflected in Table 1.

Table 1. Experimental data table of different types of screen-type nano-ion generators

Note: One-pass efficiency is the removal rate = (concentration at the inlet - concentration at the outlet)/concentration at the inlet

From Table 1, the following conclusions can be drawn:

(1) In the present embodiment 1-4, under the same high voltage loading, the purification effect of the filter screen 3 using the activated carbon coarse filter screen is better than that of the foam metal.

(2) Under the circumstance that the ozone concentration in the surrounding atmospheric environment is about 30ppb, the device described in this embodiment 1-4 basically does not generate ozone, while the ozone concentration at the outlet of the device described in the reference document is this embodiment 1-4 Compared with the devices described in the comparative documents, the one-pass efficiency of PM2.5 of the devices described in Examples 1-4 increased by 28.6%-47.6%, and the one-pass efficiency of formaldehyde was increased by 28.6%-47.6%. Efficiency increased by 164%-196%. The devices described in Embodiments 1-4 can not only efficiently purify PM2.5 and other fine particles, but also effectively decompose formaldehyde and other pollutants, and basically do not generate ozone. The device described in the comparison document produces a large amount of ozone. Although it has a certain purification effect on PM2.5, it basically does not work on formaldehyde and other pollution. Removal.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inside", The orientation or positional relationship indicated by "outside" is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation , are constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made on the basis of the present invention in order to solve basically the same technical problems and achieve basically the same technical effects are all included in the protection scope of the present invention.

Claims (10)

1. A nanometer ion generating device with filter screen, includes nanometer ion generator (6), its characterized in that: the nanometer ion generator (6) comprises at least one ion generating head (61) and a hollow porous high-voltage electrode plate (62), wherein the ion generating head (61) is fixedly arranged on the high-voltage electrode plate (62); the nano ion generator is characterized by further comprising a counter electrode plate (4) and a filter screen (3), wherein the counter electrode plate (4) and the filter screen (3) are arranged at the downstream of the nano ion generator (6) along the airflow direction.

2. The nano-ion generation device with the filter screen according to claim 1, wherein: the ion generating heads (61) are fixed on the high-voltage electrode plate (62) in parallel.

3. The nano-ion generation device with the filter screen according to claim 1, wherein: the high-voltage electrode plate (62) and the opposite electrode plate (4) are electrically connected with the high-voltage power supply module (9).

4. The nano-ion generation device with the filter screen according to claim 1, wherein: the counter electrode plate (4) is arranged upstream or downstream of the screen (3) or embedded in the screen (3).

5. The nano-ion generation device with the filter screen according to claim 4, wherein: still include casing (1), casing (1) inner wall forms airflow channel (5), nanometer ion generator (6), opposition electrode board (4) and filter screen (3) fixed respectively set up in airflow channel (5), just airflow channel (5) are linked together with air inlet (7) and air outlet (2) respectively.

6. The nano-ion generation device with the filter screen according to any one of claims 1 to 5, wherein: the nanometer ion generator (6) loads negative high voltage electricity or positive high voltage electricity; the opposite electrode plate (4) is grounded or loaded with high-voltage electricity opposite to the high-voltage electricity loaded by the nano ion generator (6).

7. The nano-ion generation device with the filter screen according to claim 6, wherein: the opposite electrode plate (4) is a circular or hollow porous conductor.

8. The nano-ion generation device with the filter screen according to claim 7, wherein: the opposite electrode plate (4) is coated with photocatalyst materials such as titanium dioxide.

9. The nano-ion generation device with the filter screen according to claim 1, wherein: the ion generating head (61) is composed of a plurality of corrosion-resistant conductors which are easy to excite positive ions and negative ions.

10. The nano-ion generation device with the filter screen according to claim 1, wherein: the filter screen (3) is composed of coarse filter screens such as activated carbon or foam metal.

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