CN102380274A - Air purifying equipment and purifying method thereof - Google Patents

Air purifying equipment and purifying method thereof Download PDF

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Publication number
CN102380274A
CN102380274A CN2011102369892A CN201110236989A CN102380274A CN 102380274 A CN102380274 A CN 102380274A CN 2011102369892 A CN2011102369892 A CN 2011102369892A CN 201110236989 A CN201110236989 A CN 201110236989A CN 102380274 A CN102380274 A CN 102380274A
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air
screen pack
filter screen
air cleaning
conductive coating
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CN2011102369892A
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CN102380274B (en
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钟仕林
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Long Yat Environmental Protection Technology (shanghai) Co Ltd
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Long Yat Environmental Protection Technology (shanghai) Co Ltd
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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

Air cleaning facility and purification method thereof
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 the 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 at present all improving constantly machine performance, reaching high cost performance, thereby improves the market competitiveness.Through domestic and international expert's years of researches, clearly on letting the particle band before through HEPA (high efficiency particle air filter High efficiency particulate air filter) static can strengthen the adsorption function of filter screen greatly; 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 lets of " point " formula; The ultra oxygen of generation of some area; Function is very limited, thereby the form of putting the ultra 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 lets of " line " formula, the ultra oxygen of the generation of line area, and its relative B scheme is to have improved each item performance greatly, this structure relative complex but corona wire discharges, cost is high, and 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 possibly causing local ultra oxygen excess.
Summary of the invention
Technical problem to be solved by this invention is a kind of brand-new air cleaning facility that provides to prior art and the existing deficiency of type; 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 through following technical scheme.
A kind of air cleaning facility comprises:
Blower fan, said 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 said poroid screen pack, a side of this poroid screen pack is an air inlet, and opposite side is an air outlet; Said screen pack air inlet end face forms a windward side; And
HEPA filter course, said HEPA filter course are positioned at the position, following air port of said poroid screen pack;
Wherein, the surface, windward side of said screen pack is provided with conductive coating, and said conductive coating is connected with high voltage source.
Further improvement as the present technique scheme also comprises the primarily efficient filter layer, and said primarily efficient filter layer is positioned at the uptake position of said poroid screen pack.
Also as the further improvement of present technique scheme, said conductive coating is electrically conductive graphite layer, nickel-gold layer or aluminium powder layer.
Also as the further improvement of present technique scheme, said screen pack is the insulating materials net.
Preferably, the insulating materials that constitutes said screen pack is selected from PP, PBT, nylon, brown paper or insulation plastic cement.
As one of the preferred embodiments of the present invention, said screen pack is cellular.
In addition, the thickness of said 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 the 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, will be through the air of each filtering holes uniformly and effectively by ionization, the dust bacterium is with electric charge, and whole photocatalytic active carbon is crossed each hole of wind part and is evenly produced ultra oxygen to reach the ultra 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
Doing one below in conjunction with the accompanying drawing specific embodiments of the invention specifies.
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 filtering holes;
Fig. 5 is the structural representation of the single filtering holes of the present invention;
---------------------air inlet 120 sets out photocatalytic active carbon 110 conductive layer 104 ultra oxygen 103 anion 102 filtering holes 101 mouthful 200---HEPA filter screen a 300---screen pack among the figure: 100
The specific embodiment
Constituted the critical piece of air cleaning equipment of the present invention to screen pack 300 shown in Figure 3 like Fig. 1; Whole screen pack 300 is made up of the filtering holes 100 of several cellular/poroid arrangements, is coated with in a side end face of filtering holes 100 conductive layer 103 (for example electrically conductive graphite, nickel gold or aluminium powder) is housed.
As shown in Figure 5; Illustrated the structure of one of them filtering holes 100 in the thousands of filtering holes in the whole screen pack 300; The poroid insulating substrate that is made up of PP, PBT, nylon, brown paper or insulation plastic cement (is a filtering holes 100; The shape of its mesopore is not only limited to hexagon) a side be air inlet 110, opposite side is an air outlet 120, under the drive of blower fan; Air to be clean is via this screen pack; Wherein all 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 filtering holes 100 aforesaid conductive layer 103 is housed, 101 and 102 of conductive layer 103 surfaces are respectively conductive layer and lead to anion and the ultra oxygen (O3) that produces after the high voltage source; Photocatalytic active carbon filter screen (with reference to figure 1) the HEPA filter screen 200 afterwards that air after screen pack 300 is handled 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 through each, the conductive layer 103 of filtering holes windward side, ionized air under the effect of high pressure produces anion 101 and ultra oxygen (O 3) 102, and make electric charge on the particle bands such as dust.Particle with going up electric charge directly arrives HEPA filter screen 300 through filtering holes 100; Ultra oxygen then in the hole with active carbon on the ultra 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.Through 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 gets into screen pack 300, after HEPA filter screen 200, also can utilize other filter course further to filter 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.Main points that its technology is formed are to be equipped with the air intake surface application conductive layer (like electrically conductive graphite) of the poroid net of active carbon, cellular/poroid insulating substrate (like 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, on conductive layer, add high pressure, produce a large amount of anions and a spot of ultra oxygen with high pressure ionization air around each aperture, make electric charge on the dust band of via hole simultaneously.A spot of ultra oxygen can reach the ultra oxygen concerted catalysis of original position with the modification photocatalytic active carbon and decompose, and effectively decomposes benzene series thing and formaldehyde.More be prone to caught with the dust of going up electric charge simultaneously, thereby improve the efficient that HEPA nets by the HEPA high efficiency.
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 ultra 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 of 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 lets charging particle, whole filtering net surface produce ultra oxygen, because of the need performance can improve greatly, does not also cause the ultra 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 ultra oxygen of trace that high-pressure electrostatic produces is converted into active ultra oxygen at catalyst surface, under its effect, makes pollutant realize catalytic decomposition.Ozone is generated elemental oxygen (O) and peroxide (O2-) by the absorption of the active site of catalyst surface, and active group carries out selective paraffin oxidation at catalyst surface to organic matter and decomposes, and ultra simultaneously oxygen is eliminated by catalyst decomposes.Strengthening decomposition toluene with ultra oxygen is example, and its mechanism of action is following: ultra oxygen (O 3) under the effect of catalyst, resolve into oxygen molecule (O 2) and the free state oxonium ion (O ( 1D)); Oxonium ion (O ( 1D)) and airborne hydrone generate hydroxyl; Formaldehyde (C 7H 8) and the free state oxonium ion (O ( 1D)) reaction generates carbon dioxide and water, perhaps formaldehyde (C 7H 8) with hydroxyl reaction after become carbon dioxide and water.
Adopt the cleaning equipment of technique scheme, with the dust of going up electric charge, bacterium more should be blocked by the HEPA of activated carbon filter layer back and carry; 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 (8)

1. air cleaning facility comprises:
Blower fan, said 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 said poroid screen pack, a side of this poroid screen pack is an air inlet, and opposite side is an air outlet; Said screen pack air inlet end face forms a windward side; And
HEPA filter course, said HEPA filter course are positioned at the position, following air port of said poroid screen pack;
Wherein, the surface, windward side of said screen pack is provided with conductive coating, and said conductive coating is connected with high voltage source.
2. air cleaning facility according to claim 1 is characterized in that, also comprises the primarily efficient filter layer, and said primarily efficient filter layer is positioned at the uptake position of said poroid screen pack.
3. air cleaning facility according to claim 1 is characterized in that, said 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, said screen pack is the insulating materials net.
5. air cleaning facility according to claim 4 is characterized in that, the insulating materials that constitutes said 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 said screen pack is cellular.
7. according to the described air cleaning facility of arbitrary claim in the claim 1 to 5, it is characterized in that the thickness of said conductive coating is not more than 0.2mm.
8. one kind is adopted the said 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.
CN 201110236989 2011-08-18 2011-08-18 Air purifying equipment and purifying method thereof Expired - Fee Related CN102380274B (en)

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Application Number Priority Date Filing Date Title
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102705610A (en) * 2012-06-15 2012-10-03 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
CN103566752A (en) * 2012-07-31 2014-02-12 上海想乐平面设计有限公司 Electrochemical gas purification device based on porous molded active 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
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
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
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
CN116761665A (en) * 2020-12-18 2023-09-15 雷尼恩斯有限公司 Method and system for reducing negative ion pollution and emission

Citations (3)

* Cited by examiner, † Cited by third party
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

Patent Citations (3)

* Cited by examiner, † Cited by third party
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

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102705610A (en) * 2012-06-15 2012-10-03 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
CN103566752A (en) * 2012-07-31 2014-02-12 上海想乐平面设计有限公司 Electrochemical gas purification device based on porous molded active carbon
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
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
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
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
CN116761665A (en) * 2020-12-18 2023-09-15 雷尼恩斯有限公司 Method and system for reducing negative ion pollution and emission
CN116761665B (en) * 2020-12-18 2024-04-16 雷尼恩斯有限公司 Method and system for reducing negative ion pollution and emission

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