CN102380274B - Air purifying equipment and purifying method thereof - Google Patents
Air purifying equipment and purifying method thereof Download PDFInfo
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- CN102380274B CN102380274B CN 201110236989 CN201110236989A CN102380274B CN 102380274 B CN102380274 B CN 102380274B CN 201110236989 CN201110236989 CN 201110236989 CN 201110236989 A CN201110236989 A CN 201110236989A CN 102380274 B CN102380274 B CN 102380274B
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- air
- screen pack
- filter screen
- conductive coating
- air cleaning
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Abstract
The invention relates to air purifying equipment and a purifying method thereof. The equipment comprises a fan, a hole-shaped filter screen and a high efficiency particulate air (HEPA) filter layer, wherein the fan is used for providing an air source to be purified, catalytic modified activated carbon are filled in meshes of the hole-shaped filter screen, one side of the hole-shaped filter screen is an air inlet, the other side of the hole-shaped filter screen is an air outlet, a windward surface is formed at the end surface of the air inlet of the filter screen, the HEPA filter layer is positioned at the lower air opening position of the hole-shaped filter screen, the surface of the windward surface of the filter screen is provided with a conductive coating, and the conductive coating is connected with a high-voltage power supply. The purifying method comprises the steps of high-voltage energization of the conductive coating, air supply by the fan and the like. Through the equipment, air passing filter holes is ionized, dust bacteria carry electric charges, and the whole catalytic activated carbon air passing part generates super oxygen for realizing the in-situ super oxygen synergistic catalytic decomposition. In addition, dust bacterium particles on the surface of the whole HEPA filter screen uniformly carry a large number of electric charges, and the effective adsorption purification is realized.
Description
Technical field
The present invention relates to the air purifying process field, be specifically related to a kind of air cleaning facility and adopt the air purification method of this equipment.
Background technology
Along with continuous quickening and industrialized big step of urbanization process advances, atmosphere pollution is serious day by day; The pollution level of room air is then even more serious.
In order to tackle the air-polluting present situation, the air purifying process that uses is both at home and abroad all improving constantly machine performance at present, reaching high cost performance, thereby improves the market competitiveness.Through domestic and international expert's years of researches, clearly through HEPA(high efficiency particle air filter High efficiency particulate air filter) allow static on the particle band can strengthen the adsorption function of filter screen greatly before; And high-pressure electrostatic produces a spot of ozone and can strengthen the adsorption function of photocatalytic active carbon PARA FORMALDEHYDE PRILLS(91,95), benzene series thing greatly and can effectively decompose, thereby strengthens entire machine equipment removing harmful substance.Main counte-rplan have following two kinds in the prior art:
A, at the dizzy silk of the preposition partial power on of a filter screen discharging structure;
B, add upper prong electrion or carbon brush electrion in the preposition part of filter screen.
More than B scheme in two schemes provide the charging particle that allows of " point " formula, the super oxygen of generation of some area, function is very limited, thereby the form of putting the super oxygen of area generation in addition may make superfluous being discharged in the air of fritter area catalytic activity carbon surface go, and then forms secondary pollution; And the A scheme can be described as the charging particle that allows of " line " formula, the super oxygen of the generation of line area, and its relative B scheme is to have improved every performance greatly, this structure relative complex but corona wire discharges, the cost height, occupation space is also big.The entire machine thickness that its above-mentioned characteristic will cause being provided by this scheme increases, and general cost can increase more than 30%, and thickness increases about 35MM, and same this scheme forms secondary pollution after also may causing local super oxygen excess.
Summary of the invention
Technical problem to be solved by this invention is at prior art and the existing deficiency of type and a kind of brand-new air cleaning facility that provides, this equipment can reduce equipment cost greatly under the situation that purifying property integral body promotes to some extent, its filter screen is evenly practical, can not produce new pollution.
Its technical problem to be solved can be implemented by the following technical programs.
A kind of air cleaning facility comprises:
Blower fan, described blower fan is used to provide source of the gas to be clean; With
Poroid screen pack is filled with the catalytic modification active carbon in the mesh of described poroid screen pack, a side of this poroid screen pack is air inlet, and opposite side is air outlet; Described screen pack air inlet end face forms a windward side; And
HEPA filter course, described HEPA filter course are positioned at the position, following air port of described poroid screen pack;
Wherein, the surface, windward side of described screen pack is provided with conductive coating, and described conductive coating is connected with high voltage source.
Further improvement as the technical program also comprises the primarily efficient filter layer, and described primarily efficient filter layer is positioned at the uptake position of described poroid screen pack.
Also as the further improvement of the technical program, described conductive coating is electrically conductive graphite layer, nickel-gold layer or aluminium powder layer.
Also as the further improvement of the technical program, described screen pack is the insulating materials net.
Preferably, the insulating materials that constitutes described screen pack is selected from PP, PBT, nylon, brown paper or insulation plastic cement.
As one of the preferred embodiments of the present invention, described screen pack is cellular.
In addition, the thickness of described conductive coating is not more than 0.2mm.
Another technical problem to be solved by this invention is to provide a kind of employing above-mentioned air cleaning facility air cleaning method.
In order to solve the problems of the technologies described above, the present invention adopts following method.
The aforementioned air cleaning facility air cleaning method of a kind of employing may further comprise the steps:
(1), windward side conductive coating high pressure energising;
(2), drive air to be clean flow through successively poroid screen pack and HEPA filter course through blower fan.
Adopt air cleaning facility and the purification method of technique scheme, blower fan is by wind elder generation process photocatalytic active carbon net and guarantee that conductive layer is the windward side, passes through the HEPA filter screen again; After whole filtration fraction reticulates logical upward high voltage source, the air of each filter bores of process will be ionized uniformly and effectively, and the dust bacterium is with electric charge, and whole photocatalytic active carbon is crossed each hole of wind part and evenly produced super oxygen to reach the super oxygen concerted catalysis decomposition of original position.Make the dust bacteria particles of the efficient screen surface of whole HEPA evenly be with electric charge in a large number equally, to reach more effective absorption.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention being done one describes in detail.
Fig. 1 is the structural representation of screen pack of the present invention;
Fig. 2 is vertical view of Fig. 1;
Fig. 3 is the enlarged diagram at B place among Fig. 2;
Fig. 4 is the mechanism of action sketch of air in filter bores;
Fig. 5 is the structural representation of the single filter bores of the present invention;
---filter bores 101---anion 102---super oxygen 103---conductive layer 104---photocatalytic active carbon 110---air inlet 120---air outlet 200---HEPA filter screen 300---screen pack among the figure: 100
The specific embodiment
Screen pack 300 has as shown in Figure 1 to Figure 3 constituted the critical piece of air cleaning facility among the present invention, whole screen pack 300 is made of the filter bores 100 of several cellular/poroid arrangements, is coated with in a side end face of filter bores 100 conductive layer 103(for example electrically conductive graphite, nickel gold or aluminium powder are housed).
As shown in Figure 5, illustrated the structure of one of them filter bores 100 in the thousands of filter bores in the whole screen pack 300, by PP, PBT, nylon, the poroid insulating substrate that brown paper or insulation plastic cement constitute (is filter bores 100, the shape of its mesopore is not only limited to hexagon) a side be air inlet 110, opposite side is air outlet 120, under the drive of blower fan, air to be clean is via this screen pack, wherein be filled with catalysis (modification) active carbon 104 in each hole of poroid insulating substrate, be coated with at the air intake surface of base material filter bores 100 aforesaid conductive layer 103 is housed, 101 and 102 of conductive layer 103 surfaces are respectively anion and the super oxygen (O that produces after the logical high voltage source of conductive layer
3); Photocatalytic active carbon filter screen (with reference to figure 1) the HEPA filter screen 200 afterwards that air after handling through filter screen 300 is further flowed through and placed air port under the screen pack and be made up of a plurality of holes that photocatalytic active carbon is housed as shown in Figure 5 is with the processing of further evolving.
When the direction of arrow among air such as Fig. 5 is equipped with the hole of photocatalytic active carbon by each, the conductive layer 103 of filter bores windward side, ionized air under the effect of high pressure produces anion 101 and super oxygen (O
3) 102, and make electric charge on the particle bands such as dust.Directly arrive HEPA filter screen 300 with the particle of going up electric charge through filter opening 100, super oxygen then in the hole with active carbon on the super oxygen concerted catalysis of catalyst generation original position decompose (with reference to figure 4), and then making the toluene that contains in the air, pernicious gases such as formaldehyde are broken down into water and carbon dioxide.By HEPA filter screen 200, because of its static electrification, carry, thereby improve complete machine CADR value and purification efficiency by easier being blocked by the HEPA filter screen under the effect of wind-force for charged particle.
Wherein, the air cleaning of this equipment can be filtered through the primarily efficient filter layer earlier before air enters screen pack 300, also can utilize other filter course further to filter after HEPA filter screen 200 equally.
The screen pack of active carbon is equipped with in utilization of the present invention and the filter screen of HEPA carries out air cleaning.The main points that its technology is formed are to be equipped with the air intake surface application conductive layer (as electrically conductive graphite) of the poroid net of active carbon, cellular/poroid insulating substrate (as insulation plastic cement, brown paper).Filter course is primarily efficient filter layer (can not have) successively in air cleaning facility, catalytic modification active carbon layer, HEPA high efficiency filter layer, other filter course (can not have).In purification process, add high pressure at conductive layer, produce a large amount of anions and a spot of super oxygen with high pressure ionization air around each aperture, make electric charge on the dust band of via hole simultaneously.A spot of super oxygen can reach the super oxygen concerted catalysis of original position with the modification photocatalytic active carbon and decompose, and effectively decomposes benzene series thing and formaldehyde.Caught by the HEPA high efficiency with the dust of going up electric charge is easier simultaneously, thereby improve the efficient that HEPA nets.
Equally, owing to the screen pack of this equipment is made up of a lot of apertures, and can both be evenly charged around each hole, produce a small amount of super oxygen.This scheme is direct application conductive layer on the base material of photocatalytic active carbon filter screen, does not increase cost basically, also need not increase space (because the thickness of coating generally is not more than 0.2MM, this thickness can be ignored) at thickness direction simultaneously.And the uniform array of a lot of apertures, " face " formula of regarding as that the high-pressure electrostatic region area can be similar to allows charging particle, whole filtering net surface produce super oxygen, because the need performance can improve greatly, does not also cause the super oxygen of small size too high.
With reference to Fig. 4, VOCs in the air-flow is adsorbed on the catalyst surface on the active carbon under the effect of active carbon, catalyst greatly reduces volatile organic matter catalytic degradation reaction temperature and reaction activity, the super oxygen of trace that high-pressure electrostatic produces is converted into active super oxygen at catalyst surface, makes pollutant realize catalytic decomposition under its effect.Ozone is generated elemental oxygen (O) and peroxide (O by the absorption of the active site of catalyst surface
2-), active group carries out selective paraffin oxidation at catalyst surface to organic matter and decomposes, and super oxygen is eliminated by catalyst decomposes simultaneously.Strengthening decomposition toluene with super oxygen is example, and its mechanism of action is as follows: super oxygen (O
3) under the effect of catalyst, resolve into oxygen molecule (O
2) and free state oxonium ion (O(
1D)); Oxonium ion (O(
1D)) and airborne hydrone generate hydroxyl; Formaldehyde (CH
2O) and free state oxonium ion (O(
1D)) reaction generates carbon dioxide and water, perhaps formaldehyde (CH
2O) with after the hydroxyl reaction become carbon dioxide and water.
Adopt the cleaning equipment of technique scheme, with the dust of going up electric charge, the more suitable HEPA by the activated carbon filter layer back of bacterium blocks and carries, reach dedusting, the purpose of deactivation bacterium, HEPA filter screen mainly can filter out the above particle of 0.3 μ m, make charging particle such as dust after, can improve the adsorption effect to the above particle of 0.3 μ m, the particle to 0.05 μ m---0.3 μ m has greater than the adsorption effect more than 90% simultaneously.
Cleaning equipment provided by the invention has better absorption and clean-up effect with respect to prior art, can effectively avoid the secondary pollution in the purification process simultaneously.
Claims (7)
1. air cleaning facility comprises:
Blower fan, described blower fan is used to provide source of the gas to be clean; With
Poroid screen pack is filled with the catalytic modification active carbon in the mesh of described poroid screen pack, a side of this poroid screen pack is air inlet, and opposite side is air outlet; Described screen pack air inlet end face forms a windward side; And
HEPA filter course, described HEPA filter course are positioned at the position, following air port of described poroid screen pack;
Wherein, the surface, windward side of described screen pack is provided with conductive coating, and described conductive coating is connected with high voltage source;
The thickness of described conductive coating is not more than 0.2mm.
2. air cleaning facility according to claim 1 is characterized in that, also comprises the primarily efficient filter layer, and described primarily efficient filter layer is positioned at the uptake position of described poroid screen pack.
3. air cleaning facility according to claim 1 is characterized in that, described conductive coating is electrically conductive graphite layer, nickel-gold layer or aluminium powder layer.
4. air cleaning facility according to claim 1 is characterized in that, described screen pack is the insulating materials net.
5. air cleaning facility according to claim 4 is characterized in that, the insulating materials that constitutes described screen pack is selected from PP, PBT, nylon, brown paper or insulation plastic cement.
6. according to the described air cleaning facility of arbitrary claim in the claim 1 to 5, it is characterized in that described screen pack is cellular.
7. one kind is adopted the described air cleaning facility air cleaning method of arbitrary claim in the claim 1 to 5, may further comprise the steps:
(1), windward side conductive coating high pressure energising;
(2), drive air to be clean flow through successively poroid screen pack and HEPA filter course through blower fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110236989 CN102380274B (en) | 2011-08-18 | 2011-08-18 | Air purifying equipment and purifying method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110236989 CN102380274B (en) | 2011-08-18 | 2011-08-18 | Air purifying equipment and purifying method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102380274A CN102380274A (en) | 2012-03-21 |
| CN102380274B true CN102380274B (en) | 2013-08-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110236989 Expired - Fee Related CN102380274B (en) | 2011-08-18 | 2011-08-18 | Air purifying equipment and purifying method thereof |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705610B (en) * | 2012-06-15 | 2013-12-18 | 成都迈可森流体控制设备有限公司 | Integrated filtering connecting insulating joint with water-separating dehumidifying structure |
| CN103566752B (en) * | 2012-07-31 | 2016-08-24 | 碳谷美学（上海）科技有限公司 | A kind of electrochemical gas purifier based on porous, shaped activated carbon |
| CN103990332A (en) * | 2014-05-27 | 2014-08-20 | 芜湖市华泰实业有限公司 | Filter element |
| CN108261848A (en) * | 2017-01-03 | 2018-07-10 | 东丽纤维研究所（中国）有限公司 | A kind of filter core that high-cleanness air capacity is provided |
| CN110965347A (en) * | 2018-09-29 | 2020-04-07 | 宁波方太厨具有限公司 | Preparation method of conductive gel and HEPA filter screen |
| CN110964306A (en) * | 2018-09-29 | 2020-04-07 | 宁波方太厨具有限公司 | Preparation method of waterborne polyurethane conductive gel and air filter screen |
| CN110965337A (en) * | 2018-09-29 | 2020-04-07 | 宁波方太厨具有限公司 | Conductive gel and HEPA filter screen preparation method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101530716A (en) * | 2009-03-11 | 2009-09-16 | 中国科学院生态环境研究中心 | Method for purifying air |
| CN201335472Y (en) * | 2008-12-07 | 2009-10-28 | 南通恒嘉环保科技有限公司 | High-pressure corona high-efficiency air purifier |
| CN201628325U (en) * | 2010-01-04 | 2010-11-10 | 深圳市格瑞卫康环保科技有限公司 | Air purifier |
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2011
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201335472Y (en) * | 2008-12-07 | 2009-10-28 | 南通恒嘉环保科技有限公司 | High-pressure corona high-efficiency air purifier |
| CN101530716A (en) * | 2009-03-11 | 2009-09-16 | 中国科学院生态环境研究中心 | Method for purifying air |
| CN201628325U (en) * | 2010-01-04 | 2010-11-10 | 深圳市格瑞卫康环保科技有限公司 | Air purifier |
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| CN102380274A (en) | 2012-03-21 |
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