CN105032151A - Air purification method and device - Google Patents

Abstract

The invention relates to an air purification method which purifies air by using a two-stage or multi-stage chemical agent solution absorption method. The two-stage or multi-stage chemical agent solution absorption method comprises: firstly absorbing vitiated air entering indoors to a first-stage absorption chamber; absorbing organic matter harmful gas by an acidic potassium permanganate solution and filtering the harmful gas; then introducing the gas to a second-stage absorption chamber by a fan; absorbing harmful gas with weak acidity output from the first-stage absorption chamber by using alkaline liquor, and filtering the harmful gas; and blowing the harmful gas indoors, wherein the acidic potassium permanganate solution in the first-stage absorption chamber is a mixed aqueous solution of potassium permanganate and diluted acid, and in the mixed aqueous solution, the potassium permanganate accounts for 0.5-3% by weight and the diluted acid accounts for 3-5% by weight; the alkaline liquor in the second-stage absorption chamber is an aqueous solution of sodium hydroxide or calcium hydroxide with the content of alkaline liquor being 2-5%.

Description

Air purification method and device

Technical field

The present invention relates to an air purification method and device, specifically the foul atmosphere entering indoor is carried out the toxic and harmful purifying to eliminate in air, avoid the method and apparatus that human body is damaged.

Technical background

Along with the mankind step into the process of industrialization and urbanization, a lot of regional industry gas pollutant has become the healthy hidden danger being difficult to eliminate, the sulfur dioxide that factory's burning coal discharges, ammonia nitrogen gaseous compound and carbon dioxide; The oxynitrides of motor vehicle exhaust emission, the benzene series organic gas, organochlorine, organophosphor etc. of Organic Chemical Plant's discharge, formaldehyde, benzene series solvent etc. that the furniture paint of sprucing up use is discharged slowly are damaging and are corroding the health of people, these several years, North China, East China, a lot of city, south China suffer the invasion and attack of haze in succession, and the health of common people is being subject to serious threat.Along with the aggravation all the more of environmental pollution, people more and more recognize healthy importance, so the research and production of air purifier starts to occur, domestic market starts to see a lot of air purifier, the world ten famous brand air purifier as report: German Ai Jisen air purifier; U.S.'s Amway air purifier; U.S. 3M air purifier; The green general air purifier of Sweden; U.S.'s youth's lattice difficult to understand air purifier; Holland's Philip air purifier; Japanese Sharp air purifier; U.S.'s Honeywell air purifier; U.S. Ai Aonike air purifier; PANASONIC air purifier.The several important brand of domestic market: millet air purifier; Gree air purifier; Yadu air purifier; Long-range air purifier; Beautiful air purifier etc. has become the outstanding person of air purifier.But regrettably they are all adopt dry agent filter screen mode to eliminate the particle suspensions in air, and namely employing physical filtering method eliminates the suspension in PM2.5, and really can not eliminate poisonous and hazardous material in air.Open source literature also reports some method and apparatus about purification of air, such as:

1, Chinese patent: a kind of have absorption and synergistic adsorbent of oxidation and its preparation method and application to indoor toluene, application number: CN201410468930.X, open (bulletin) number: CN104226241A, application (patent right) people: Shandong Qin Yu Environmental Protection Technology Co., Ltd, summary: this invention relates to Techniques for Indoor Air Purification field, disclose one and have absorption and the synergistic adsorbent of oxidation to indoor toluene, the load capacity of potassium permanganate on H-ZSM-5 molecular sieve is 0.05-1.This invention has good oxidation susceptibility, can directly by toluene to being oxidized to benzoic acid, adsorption effect is more excellent, solve indoor Low Concentration Toluene absorption vacancy technical problem.Also disclose this kind, to indoor toluene, there is absorption and the preparation method of the synergistic adsorbent of oxidation, using H-ZMS-5 as absorption carrier, by dipping, potassium permanganate is carried on absorption carrier, then dry through Nitrogen evaporator.Preparation method of the present invention is simple, consuming time short, cost is low, and meets " Green Chemistry " theory, have broad application prospects.Also relate to its application in process chamber in toluene.Process for indoor polluted gas provides an effective method, there is important using value in life security.

2, Chinese patent: a kind of material for air purification, its preparation method and using method removing formaldehyde in air, application number: CN201410348439.3, open (bulletin) number: CN104084034A, open (bulletin) day: 2014.10.08, application (patent right) people: Nanjing University, summary: this disclosure of the invention is a kind of removes the material for air purification of formaldehyde in air, its preparation method and using method, belongs to air purification field.Remove a material for air purification for formaldehyde in air, it comprises cleanser carrier, and described cleanser carrier is resin, and described resin is fixed with potassium permanganate; Described potassium permanganate and the mass ratio of resin are 1:(2-10), the liquor potassic permanganate concentration that impregnating resin uses is less than 50g/l; Described resin is D213 macroreticular resin, and skeleton structure is cross-linked acrylic acid, is the anion exchange resin with quaternary amine base-N (CH3) 3.This invention uses the immobilized potassium permanganate of D213 macroporous strong basic anion exchange resin, and have the advantage of high, the immobilized rear difficult drop-off of supported quantity, loss, the scavenging material of preparation can remove formaldehyde effectively.

3, Chinese patent: a kind of strong absorbent-type air purifying preparation and preparation method thereof, application number: CN201310366321.9, open (bulletin) number: CN103447004A, application (patent right) people: Suzhou Kanghua Purification System Engineering Co., Ltd., summary: this invention relates to a kind of strong absorbent-type air purifying preparation and preparation method thereof, this air purifying preparation in mass parts containing following composition: active carbon 15 ~ 30 parts, bentonite 5 ~ 15 parts, light magnesium oxide 8 ~ 20 parts, tea oil 5 ~ 15 parts, sodium hydrogensulfite 0.3 ~ 2 part, alkyl amine oxide 0.2 ~ 1 part, absolute ethyl alcohol 5 ~ 13 parts, acid potassium permanganate 3 ~ 8 parts.The air purifying preparation that this invention provides has very strong suction-operated to toxic gases such as the formaldehyde in air, toluene, dimethylbenzene; can also carbon dioxide in absorption chamber; have the effect of killing pathogenic bacteria simultaneously, effectively improve indoor environment, protection people's is healthy.

4, Chinese patent: a kind of indoor air purification agent and preparation method thereof and indoor air cleaner screen pack, application number: CN201410554377.1, the applying date: 2014.10.17, open (bulletin) number: CN104324686A, application (patent right) people: blue green technology (Beijing) Co., Ltd is moistened in middle section, summary: the invention provides a kind of indoor air purification agent and preparation method thereof and indoor air cleaner screen pack.Described air purifying preparation is for purifying gas fluorine, formaldehyde and the VOC in the room air in high fluoride pollution area, described method comprises: with porous material activated alumina or active zeolite for catalyst carrier, in the brown reaction vessel of sealing, liquor potassic permanganate is used to flood described catalyst carrier, potassium permanganate in described liquor potassic permanganate loads to surface and the inside of described catalyst carrier, remove unnecessary reactant liquor, obtain the active material of loaded potassium permanganate; To be placed in by described active material in vacuum drying chamber under 80 DEG C of conditions dry 2 hours, after cooling, taking-up obtains described indoor air purification agent naturally, and carries out sealing and keep in Dark Place; The gas fluorine of indoor air purification agent absorption 3-5mg described in every 1g.

5, Chinese patent: a kind of air purifying preparation application number: the CN201310646886.2 applying date: 2013.12.06 open (bulletin) number: CN103721526A application (patent right) people: middle kaempferia galamga moral bio tech ltd summary: the present invention relates to biological technical field, specifically for the air purifying preparation that indoor formaldehyde after house decoration absorbs, be made up of following raw materials according: Peracetic acid, ethanol, boric acid, potassium permanganate part, iron ammonium sulfate, ammonium phosphate, plant extraction liquid and water; Product of the present invention is sprayed on the absorption that indoor can realize indoor formaldehyde, reduce formaldehyde to the harm of human body, and this product be a kind of nontoxic, with the liquid substance of scent, can not secondary pollution be produced, a kind of Green Product, widely applicable, cost is low.

6, Chinese patent: a kind of material for air purification and preparation method thereof, application number: CN201310020731.8, open (bulletin) number: CN103041781A, application (patent right) people: Suzhou Industrial Park Anzewen Environment-protective Technology Co., Ltd, summary: a kind of material for air purification of this disclosure of the invention and preparation method thereof, by potassium permanganate, manganese acetate, NaOH in mass ratio 1:0.6 ~ 0.9:1.3 ~ 1.9 is configured to solution, after hybrid reaction, carry out press filtration, obtaining moisture content is the filter cake of 60wt% ~ 80wt%, then after filter cake and binding agent being mixed according to mass ratio 1:0.3 ~ 0.4, extrusion molding, dry, obtain material for air purification.The material for air purification that this invention provides has good formaldehyde absorbing effect, particularly still has good removal effect to the formaldehyde of low concentration, and it also has the effect removing preferably acetaldehyde in addition, easy to use and preparation technology simple, practical.

7, Chinese patent: biological enzyme absorbs nutrient solution, application number: CN201310010211.9, the applying date: 2013.01.11, open (bulletin) number: CN103058770A, open (bulletin) day: 2013.04.24, application (patent right) people: Cheng Tiezhu, summary: the invention provides a kind of biological enzyme and absorb nutrient solution, it is characterized in that comprising ammonium phosphate, iron ammonium sulfate, potassium dihydrogen phosphate, boric acid, potassium chloride, potassium permanganate, sodium hydrogen phosphate, plant extraction liquid and water; Described plant extraction liquid comprises extract solution from aloe, epipremnum aureum extract, bracketplant extract, peppermint extract and water.The present invention is nonpoisonous and tasteless, the specific microorganism of a class and formaldehyde dehydrogenase can be produced under the cultivation of this nutrient solution, bio-catalytical oxidation can be carried out to the formaldehyde in air and other indoor pollutants, and be converted into nutriment and the energy of microorganism self, can not cause secondary pollution to environment, be current a kind of desirable indoor air purification material.In addition, the present invention also can promote the growth of plant and fish.The present invention is applied widely, and cost is low, is Green Product.

8, Chinese patent: a kind of preparation method removing the filtering material of acidic gas in air, application number: CN200910143662.3, the applying date: 2009.06.01, open (bulletin) number: CN101564682A, open (bulletin) day: 2009.10.28, application (patent right) people: Li Longfeng, summary: a kind of preparation method removing the filtering material of acidic gas in air, step is the preparation of liquor potassic permanganate; Ball processed: raw aluminum hydroxide makes alumina powder after pulverizing rear (granularity 7 ~ 15 microns) upper dehydration furnace shower roasting, and go up nodulizer afterwards and add liquor potassic permanganate balling-up, the size of ball roughly controls at 3-5mm; Aquation: the steam of pellet 95-100 DEG C that makes carries out aquation, time 6-8 hour; Roasting finished product: carry out calcination for activation in the filtering material feeding electric heating rotary furnace that aquation completes, obtain finished-product material.The filtering material adopting present invention process method to make, reaches 16% to effective adsorption capacity of HS, adds the specific area of alumina adsorption, improve purification efficiency.By this materials application on air cleaning facility, can be widely used in petro chemical industry, the equipment control room of the industries such as papermaking is metallurgical, can effectively prevent HS to the sour corrosion of instrument and meter.

9, Chinese patent: a kind of PM2.5 adsorbent and preparation method thereof, application number: CN201410557868.1, the applying date: 2014.10.21, open (bulletin) number: CN104368318A, open (bulletin) day: 2015.02.25, application (patent right) people: Co., Ltd of Bei Si productivity promotion center of Fanchang County, summary: a kind of PM2.5 adsorbent, be made up of the raw material of following weight portion: active carbon 80-90, sodium metasilicate 3-4, potassium permanganate 0.2-0.3, siderite powder 3-4, shaddock peel powder 1.5-2, polyacrylate dispersion 1-2, nano zine oxide 2-3, lactic acid 1-2, strontium carbonate 1-2, bentonite 7-11, pore forming agent 1-2, 1Mol/L sodium hydroxide solution 130-150, 1Mol/L calcium chloride solution 140-160, water is appropriate, auxiliary agent 3-5, adsorbent of the present invention is good, good air purification effect, has good suction-operated to bacterium, formaldehyde, PM2.5 in air, by using nano zine oxide, can the harmful substance such as catalyze oxidation of formaldehyde, and can also sterilization.The application of the invention auxiliary agent, can prevent allergic, produce refreshing effect to the mind, and improves strainability.

10, Chinese patent: a kind of indoor air purification agent and preparation method thereof and indoor air cleaner screen pack, application number: CN201410554377.1, the applying date: 2014.10.17, open (bulletin) number: CN104324686A, open (bulletin) day: 2015.02.04, application (patent right) people: blue green technology (Beijing) Co., Ltd is moistened in middle section, summary: the invention provides a kind of indoor air purification agent and preparation method thereof and indoor air cleaner screen pack.Described air purifying preparation is for purifying gas fluorine, formaldehyde and the VOC in the room air in high fluoride pollution area, described method comprises: with porous material activated alumina or active zeolite for catalyst carrier, in the brown reaction vessel of sealing, liquor potassic permanganate is used to flood described catalyst carrier, potassium permanganate in described liquor potassic permanganate loads to surface and the inside of described catalyst carrier, remove unnecessary reactant liquor, obtain the active material of loaded potassium permanganate; To be placed in by described active material in vacuum drying chamber under 80 DEG C of conditions dry 2 hours, after cooling, taking-up obtains described indoor air purification agent naturally, and carries out sealing and keep in Dark Place; The gas fluorine of indoor air purification agent absorption 3-5mg described in every 1g.

All there is technological deficiency in above-mentioned disclosed air purifying process, they attempt the chemical property being changed harmful and noxious substance in air by the chemical reaction of medicine, to reach the object purified air, but what they adopted is that dry agent carrier containing chemicals is as filtering utensil, and these dry agent carrier roles in the middle of the application of reality containing chemicals are very micro-, the effect of generation is also inappreciable.Because there is the effect that chemical reaction produces between material, depend on the factor of many aspects, the wherein condition of comparatively importantly these two aspects, that is: be on the one hand there is chemical reaction material between contact whether abundant, if contact fully, there is the effect that chemical reaction produces between them all right, on the contrary just bad.Be on the other hand there is chemical reaction material between time of abundant contact whether enough long, if fully the time of contact enough long, then between them institute that the effect that chemical reaction produces occurs is all right, otherwise just bad.Current national specify the capacity of indoor air cleaner must not be less than 85 cubes/per hour, suppose when the discharge duct internal diameter of certain indoor air cleaner is 5cm, then in pipeline, speed air flow will for being not less than 12 meters per second, that is: 12 meter per seconds, it is of short duration that the gas that is not less than 12 meter per seconds containing the dry agent carrier of chemicals and flowing velocity in this air channel of justing think contacts, contact is also insufficient, the time that chemical reaction occurs between them is also inadequate, chemical reaction will be caused complete not, know that the effect that their generation chemical reactions produce also is imperfect therefrom.

Summary of the invention

The object of the invention is for prior art Problems existing, there is provided one can absorb ammonia nitrogen fast, have germ and the harmful poisonous gas such as various types of olefins, alkynes, formaldehyde, substituted benzene and sulfur dioxide, hydrogen sulfide, nitrogen dioxide, carbon dioxide, ensure to enter the pure air purification method of indoor air and device.

To achieve these goals, the technical solution used in the present invention is:

Air purification method of the present invention, use two-stage or multi-grade chemical drug solution absorption process to purify air, described two-stage or multi-grade chemical drug solution absorption process first suck first order absorption chamber by entering indoor foul atmosphere, acid permanganate soln is adopted to absorb organic matter pernicious gas, and filter, then by blower fan, gas is passed into second level absorption chamber, adopt the pernicious gas with slant acidity that alkali liquor absorption is exported by first order absorption chamber, and filter, then blow through air-introduced machine and enter indoor.

The acid permanganate soln of described first order absorption chamber is the mixed aqueous solution by potassium permanganate and diluted acid, and in mixed aqueous solution, the weight content of potassium permanganate is 0.5-3%, and the weight content of diluted acid is 3-5%.

The alkali lye of described second level absorption chamber is weight content is the NaOH of 2-5% or the aqueous solution of calcium hydroxide.

Described diluted acid is sulfuric acid, acetic acid, hydrochloric acid, propionic acid or ethanedioic acid.

The acid potassium permanganate mixed aqueous solution of described first order absorption chamber also adds the extract of soapberry fruit further, and the weight content of the extract of described soapberry fruit is 1-3%.

The extract of described soapberry fruit is that fresh or dry soapberry fruit is crushed to below 100 orders clear water lixiviate 2 times, each 2 hours, and per kilogram soapberry fruit adds water 3-5 kilogram, then filters the liquid obtained.

The equipment that described air purification method adopts is first order absorption chamber, second level absorption chamber and the blower fan that is attached thereto, wherein the air inlet of first order absorption chamber is front installs a high pressure positive blower, and after the gas outlet place of first order absorption chamber also connects a high pressure positive blower, connect the air inlet of second level absorption chamber again, air-introduced machine is installed in the gas outlet of second level absorption chamber, and the gas outlet of air-introduced machine connects room atmosphere.

The equipment that described air purification method adopts is first order absorption chamber, second level absorption chamber and the blower fan that is attached thereto, wherein the air inlet of first order absorption chamber is front installs a high pressure positive blower, high pressure positive blower air inlet also connects the filter with screen pack, after the gas outlet of first order absorption chamber connects foam separator and surge tank, connect the air inlet of second level absorption chamber again, air-introduced machine is installed in the gas outlet of second level absorption chamber, and the gas outlet of air-introduced machine connects room atmosphere.

The equipment that described air purification method adopts is first order absorption chamber, second level absorption chamber and the blower fan be attached thereto, high pressure positive blower is not installed before the air inlet of wherein first order absorption chamber, its air inlet is directly connected with outdoor air, just the gas outlet place of first order absorption chamber is connected high pressure positive blower with between absorption chamber air inlet place, the second level, air-introduced machine is installed at the gas outlet place of second level absorption chamber, and the gas outlet of air-introduced machine connects room atmosphere.

Described first order absorption chamber and the inside of second level absorption chamber are all provided with filter, and filter will be arranged on below liquid level.

The filter of described first order absorption chamber and the inside of second level absorption chamber is organic fiber net.

Above-mentioned connection is all connected by pipeline.

The classroom that described air purification method can be applicable to the more serious workshop of hospital infectious disease ward, laboratory, pollution, invade and harass by sudden pernicious gas or residential building aspect.

Described soapberry fruit is a Plants, soapberry (Classification system: SapindusmukorossiGaertn.), another name: son (Compendium of Materia Medica) suffered from by wood, oil is suffered from son (Sichuan) hardship and is suffered from tree (Hainan), yellow order tree, order wave tree (Taiwan), You Luoshu, fruit of washing one's hands.Soapberry pericarp, containing the triterpenoid saponin such as sapindoside, can manufacture abluent, for daily washing: tableware is clean, beauty treatment, hair washing, skin care.The fruit of natural plant Chinese soapberry tree, by the system of manually shining, peeling, the pure pericarp then obtained.Directly can be used for extracting its effective ingredient--saponin(e, manufactures natural nuisance-free cleaning supplies--soapberry soap breast Sapindus handmade soap etc.This class natural plants cleaning supplies, China is not owing to having soap in ancient times, so by the pericarp of soapberry, without processing, the cotton that is wrapped in from cover to cover is knitted in sack, and soaked stranding is squeezed, and makes it produce foam, is directly used in laundry, hair washing, ablution.

In absorbing liquid of the present invention, the present inventor finds that soapberry extract can absorb heavy metal ion, its reason is that sapindoside triterpenoid saponin contains bisdesmoside and three sugar chain saponin(es, on the sugar chain of saponin(e, also be connected with other groups by ester bond, these groups can with heavy metal ion, as lead, mercury, chromium, formation complex compound, enter solution from gas and no longer volatilize, reach the object of purification; Also find that soapberry extract is in first order absorption chamber, acid permanganate soln can be made to play synergistic effect, because in the absorption of acid permanganate soln PARA FORMALDEHYDE PRILLS(91,95), carbon dioxide may be formed, unreacted completely gas is entrained with the first absorption chamber, and affects assimilation effect, and adds soapberry fruit extract, the sugar chain of saponin(e or ester bond can be made to react further, ensure to absorb completely and stablize.

The chemical reaction mechanism of purification pot of the present invention is as follows:

1, the chemical reaction mechanism of organic matter pernicious gas is eliminated

Acid permanganate soln can with the unsaturated hydrocarbons such as alkene, alkynes, and substituted benzene, aldehyde, alcohol etc. organic matter generation oxidation reaction, substituted benzene is as toluene, dimethylbenzene, change former organic molecular structure, make it to become carboxylic acid, or water and carbon dioxide, thus change its original chemical property.Due to can be too many with the kind of the organic matter pernicious gas of acid permanganate soln generation oxidation reaction, can not enumerate out at this, below illustrate with three reactions:

(1) chemical reaction mechanism of formaldehyde and acid permanganate soln

In this chemical reaction, formaldehyde is first generated formic acid HCOOH by acid potassium permanganate oxidation, and also containing an aldehyde radical (COOH) in formic acid, continue oxidized generation carbonic acid, carbonic acid is unstable, decomposes and generates carbon dioxide and water.

Its chemical equation is: 5CH ₂o+4KM _no ₄+ 6H ₂sO ₄→ 2K ₂sO ₄+ 4M _nsO ₄+ 11H ₂o+5CO ₂↑

(2) chemical reaction mechanism of toluene and acid permanganate soln

Why the alkyl of toluene and substituted benzene is easily oxidized to carboxyl, because toluene and substituted benzene have side chain, and first carbon atom has hydrogen to side chain, so they are just easily oxidized by acid potassium permanganate, make it to become carboxyl, generate corresponding carboxylic acid, the carboxylic acid generated after reaction is then stayed in original solution, strengthen the acidity of original solution, thus strengthen the oxidisability of original solution, continue to participate in chemical reaction.

Its chemical equation is:

5C ₆H ₅-CH ₃+6KM _nO ₄+9H ₂SO ₄→5C ₆H ₅-COOH+6M _nSO ₄+3K ₂SO ₄+14H ₂O

(3) chemical reaction mechanism of ethene and acid permanganate soln

Ethylene gas passes in acid permanganate soln, and acid potassium permanganate is just interrupted the carbon-carbon bond of ethylene molecule intermediate ion key and C-H bond by oxidation reaction, makes it to become carbon dioxide and water.

Its chemical equation is:

5C ₂H ₄+12KM _nO ₄+18H ₂SO ₄→6K ₂SO ₄+12M _nSO ₄+28H ₂O+10CO ₂↑

2, the chemical reaction mechanism of inorganic matter pernicious gas is eliminated

Alkaline solution can with nitrogen dioxide, sulfur dioxide, carbon dioxide, hydrogen sulfide isogonic sour gas generation chemical reaction, make it to become corresponding hydrochlorate, thus change its original chemical property.Alkali lye can use NaOH as the solution of solute.The chemical equation of it and that several slant acidity gas above-mentioned is:

5CO ₂+9NaON→4Na ₂CO ₃+NaHCO ₃+4H ₂O

SO ₂+2NaOH→Na ₂SO ₃+H ₂O

NO ₂+2NaOH→Na ₂NO ₃+H ₂O

H ₂S+2NaOH→Na ₂S+2H ₂O

Compared with prior art, the outstanding substantive distinguishing features of air cleaning unit of anti-member's use of the present invention and progress are significantly:

1, two-stage chemicals solution absorption method is used to purify air, described two-stage chemicals solution absorption method is that first foul atmosphere is sucked first order absorption chamber, acid permanganate soln is adopted to absorb organic matter pernicious gas, and filter, then by blower fan, gas is blown into second level absorption chamber, the inorganic matter pernicious gas of the slant acidity adopting alkali liquor absorption first order absorption chamber to export, and filter, then enter mouth mask through air-introduced machine.Only having one-level to do agent compared with existing air purification method, to consider the Physical Absorption method effect of net absorbing and filtering far better, because after the first order absorbs, also a large amount of with sour gas such as nitrogen dioxide, sulfur dioxide, carbon dioxide, hydrogen sulfide in gas, endanger also can to artificial one-tenth greatly, the present invention increases alkaline solution absorption again after acid permanganate soln absorbs, the slant acidity inorganic matter noxious acidic gaseous generation chemical reaction exported is exported with first order absorption chamber, make it to become corresponding hydrochlorate, do not have the gas of any harm.

2, after two-stage chemicals solution absorbs, the air quality entering mouth mask improves greatly, and not only toxic and harmful is eliminated, and germ and particle are also purified; The unit that the present invention also can be applicable to the more serious workshop of hospital infectious disease ward, laboratory, pollution, invade and harass by sudden pernicious gas.

What 3, the present invention adopted is the method that two-stage chemicals solution absorbs washing and filtering, and all below liquid level, filter is installed in two-stage absorber, its effect is that both attenuating gas had entered the bubble that liquid internal formed, postpone again the speed that air-flow flows at liquid internal, to make the contact between the material of participation chemical reaction more abundant, the time that chemical reaction occurs is enough, and chemical reaction is more complete.Like this when the gas of one dirt is sucked by this air cleaning unit, acid permanganate soln in first order absorber is just central organic matter pernicious gas, after chemical reaction changes its chemical property, to reach the object that it is eliminated, alkali lye in the absorber of the second level is then the pernicious gas the inorganic matter containing slant acidity in the gas of discharging through first order absorber gas outlet, after chemical reaction, changes its chemical property, to reach the object that it is eliminated.In addition, when the dirty gas sucked by this air cleaning unit is passing through this two-stage absorber, due to the effect of wind speed and pressure, the gas be inhaled into can be blown the liquid in two-stage absorber roll and rise, when absorbing liquid blown roll rise when, on the one hand, be inhaled into organic matter in gas or inorganic matter toxic and harmful is eliminated with the chemical substance generation chemical reaction in two-stage absorbing liquid respectively, the remaining oxygen molecule useful to the mankind then with roll the hydrone of rising in liquid and produce severe friction, formed with negative electrical charge containing negative oxygen ion, air cleaning unit of the present invention is the clarifier of foul atmosphere, also be the generator containing negative oxygen ion, will be very good by the air cleaning unit of the present invention effect that purifies air.

4, the extract of soapberry fruit is added at first order absorption chamber, can with heavy metal ion, as lead, mercury, chromium, form complex compound, enter solution from gas and no longer volatilize, reach the object of purification, and the extract of soapberry fruit can make acid permanganate soln play synergistic effect, because in the absorption of acid permanganate soln PARA FORMALDEHYDE PRILLS(91,95), carbon dioxide may be formed, unreacted completely gas is entrained with first order absorption chamber, and affect assimilation effect, and add soapberry fruit extract, the sugar chain of saponin(e or ester bond can be made to react further, ensure to absorb completely with stable.

Accompanying drawing explanation

Fig. 1 is the schematic diagram of air cleaning unit embodiment 1 to 3 of the present invention;

Fig. 2 is the schematic diagram of air cleaning unit embodiment 4 to 6 of the present invention;

Fig. 3 is the schematic diagram of air cleaning unit embodiment 7 to 9 of the present invention;

In figure, component names and sequence number are:

No. I high pressure positive blower 1, first order absorption chamber 2, filter 3, second level absorption chamber 4, air-introduced machine 5, pipeline 6, II high pressure positive blower 7, filter 8, screen pack 9, foam separator 10, surge tank 11.

Detailed description of the invention

Introduce the present invention in order to more detailed, below in conjunction with embodiment and accompanying drawing, the present invention will be further described.

Embodiment 1

Air purification method of the present invention, use two-stage or multi-grade chemical drug solution absorption process to purify air, described two-stage or multi-grade chemical drug solution absorption process first suck first order absorption chamber 2 by entering indoor foul atmosphere, acid permanganate soln is adopted to absorb organic matter pernicious gas, and filter, then by blower fan, gas is passed into second level absorption chamber 4, adopt the pernicious gas with slant acidity that alkali liquor absorption is exported by first order absorption chamber 2, and filter, then blow through air-introduced machine 5 and enter indoor.

The acid permanganate soln of described first order absorption chamber 2 is the mixed aqueous solutions by potassium permanganate and diluted acid, and in mixed aqueous solution, the weight content of potassium permanganate is 0.5%, and the weight content of diluted acid is 3%.

The alkali lye of described second level absorption chamber 4 is weight contents is the NaOH of 2% or the aqueous solution of calcium hydroxide.

Described diluted acid is sulfuric acid or ethanedioic acid.

The acid potassium permanganate mixed aqueous solution of described first order absorption chamber 2 also adds the extract of soapberry fruit further, and the weight content of the extract of described soapberry fruit is 1%.

The extract of described soapberry fruit is that fresh or dry soapberry fruit is crushed to below 100 orders clear water lixiviate 2 times, each 2 hours, and per kilogram soapberry fruit adds water 3 kilograms, then filters the liquid obtained.

The equipment that described air purification method adopts is first order absorption chamber 2, second level absorption chamber 4 and the blower fan that is attached thereto, wherein the air inlet of first order absorption chamber 2 is front installs No. I high pressure positive blower 1, and after the gas outlet place of first order absorption chamber 2 connects II high pressure positive blower 7, connect the air inlet of second level absorption chamber 4 again, air-introduced machine 5 is installed in the gas outlet of second level absorption chamber 4, and the gas outlet of air-introduced machine 5 connects room atmosphere.

Described first order absorption chamber 2 and the inside of second level absorption chamber 4 are all provided with filter 3, and filter 3 will be arranged on below liquid level.

The filter 3 of described first order absorption chamber 2 and the inside of second level absorption chamber 4 is organic fiber nets.

Above-mentioned connection is all connected by pipeline 6.

The classroom that described air purification method can be applicable to the more serious workshop of hospital infectious disease ward, laboratory, pollution, invade and harass by sudden pernicious gas or residential building aspect.

Embodiment 2

Air purification method of the present invention, use two-stage or multi-grade chemical drug solution absorption process to purify air, described two-stage or multi-grade chemical drug solution absorption process first suck first order absorption chamber 2 by entering indoor foul atmosphere, acid permanganate soln is adopted to absorb organic matter pernicious gas, and filter, then by blower fan, gas is passed into second level absorption chamber 4, adopt the pernicious gas with slant acidity that alkali liquor absorption is exported by first order absorption chamber 2, and filter, then blow through air-introduced machine 5 and enter indoor.

The acid permanganate soln of described first order absorption chamber 2 is the mixed aqueous solutions by potassium permanganate and diluted acid, and in mixed aqueous solution, the weight content of potassium permanganate is 1.5%, and the weight content of diluted acid is 4%.

The alkali lye of described second level absorption chamber 4 is weight contents is the NaOH of 3.5% or the aqueous solution of calcium hydroxide.

Described diluted acid is hydrochloric acid, propionic acid or ethanedioic acid.

The acid potassium permanganate mixed aqueous solution of described first order absorption chamber 2 also adds the extract of soapberry fruit further, and the weight content of the extract of described soapberry fruit is 2%.

The extract of described soapberry fruit is that fresh or dry soapberry fruit is crushed to below 100 orders clear water lixiviate 2 times, each 2 hours, and per kilogram soapberry fruit adds water 4 kilograms, then filters the liquid obtained.

The equipment that described air purification method adopts is first order absorption chamber 2, second level absorption chamber 4 and the blower fan that is attached thereto, wherein the air inlet of first order absorption chamber 2 is front installs No. I high pressure positive blower 1, and after the gas outlet place of first order absorption chamber 2 connects II high pressure positive blower 7, connect the air inlet of second level absorption chamber 4 again, air-introduced machine 5 is installed in the gas outlet of second level absorption chamber 4, and the gas outlet of air-introduced machine 5 connects room atmosphere.

Described first order absorption chamber 2 and the inside of second level absorption chamber 4 are all provided with filter 3, and filter 3 will be arranged on below liquid level.

The filter 3 of described first order absorption chamber 2 and the inside of second level absorption chamber 4 is organic fiber nets.

Above-mentioned connection is all connected by pipeline 6.

The classroom that described air purification method can be applicable to the more serious workshop of hospital infectious disease ward, laboratory, pollution, invade and harass by sudden pernicious gas or residential building aspect.

Embodiment 3

Air purification method of the present invention, use two-stage or multi-grade chemical drug solution absorption process to purify air, described two-stage or multi-grade chemical drug solution absorption process first suck first order absorption chamber 2 by entering indoor foul atmosphere, acid permanganate soln is adopted to absorb organic matter pernicious gas, and filter, then by blower fan, gas is passed into second level absorption chamber 4, adopt the pernicious gas with slant acidity that alkali liquor absorption is exported by first order absorption chamber 2, and filter, then blow through air-introduced machine 5 and enter indoor.

The acid permanganate soln of described first order absorption chamber 2 is the mixed aqueous solutions by potassium permanganate and diluted acid, and in mixed aqueous solution, the weight content of potassium permanganate is 3%, and the weight content of diluted acid is 5%.

The alkali lye of described second level absorption chamber 4 is weight contents is the NaOH of 5% or the aqueous solution of calcium hydroxide.

Described diluted acid is sulfuric acid, acetic acid or ethanedioic acid.

The acid potassium permanganate mixed aqueous solution of described first order absorption chamber 2 also adds the extract of soapberry fruit further, and the weight content of the extract of described soapberry fruit is 3%.

The extract of described soapberry fruit is that fresh or dry soapberry fruit is crushed to below 100 orders clear water lixiviate 2 times, each 2 hours, and per kilogram soapberry fruit adds water 5 kilograms, then filters the liquid obtained.

The equipment that described air purification method adopts is first order absorption chamber 2, second level absorption chamber 4 and the blower fan that is attached thereto, wherein the air inlet of first order absorption chamber 2 is front installs No. I high pressure positive blower 1, and after the gas outlet place of first order absorption chamber 2 connects II high pressure positive blower 7, connect the air inlet of second level absorption chamber 4 again, air-introduced machine 5 is installed in the gas outlet of second level absorption chamber 4, and the gas outlet of air-introduced machine 5 connects room atmosphere.

Described first order absorption chamber 2 and the inside of second level absorption chamber 4 are all provided with filter 3, and filter 3 will be arranged on below liquid level.

The filter 3 of described first order absorption chamber 2 and the inside of second level absorption chamber 4 is organic fiber nets.

Above-mentioned connection is all connected by pipeline 6.

The classroom that described air purification method can be applicable to the more serious workshop of hospital infectious disease ward, laboratory, pollution, invade and harass by sudden pernicious gas or residential building aspect.

Embodiment 4

Air purification method of the present invention, use two-stage or multi-grade chemical drug solution absorption process to purify air, described two-stage or multi-grade chemical drug solution absorption process first suck first order absorption chamber 2 by entering indoor foul atmosphere, acid permanganate soln is adopted to absorb organic matter pernicious gas, and filter, then by blower fan, gas is passed into second level absorption chamber 4, adopt the pernicious gas with slant acidity that alkali liquor absorption is exported by first order absorption chamber 2, and filter, then blow through air-introduced machine 5 and enter indoor.

The acid permanganate soln of described first order absorption chamber 2 is the mixed aqueous solutions by potassium permanganate and diluted acid, and in mixed aqueous solution, the weight content of potassium permanganate is 0.5%, and the weight content of diluted acid is 3%.

The alkali lye of described second level absorption chamber 4 is weight contents is the NaOH of 2% or the aqueous solution of calcium hydroxide.

Described diluted acid is sulfuric acid or ethanedioic acid.

The acid potassium permanganate mixed aqueous solution of described first order absorption chamber 2 also adds the extract of soapberry fruit further, and the weight content of the extract of described soapberry fruit is 1%.

The extract of described soapberry fruit is that fresh or dry soapberry fruit is crushed to below 100 orders clear water lixiviate 2 times, each 2 hours, and per kilogram soapberry fruit adds water 3 kilograms, then filters the liquid obtained.

The equipment that described air purification method adopts is first order absorption chamber 2, second level absorption chamber 4 and the blower fan that is attached thereto, wherein the air inlet of first order absorption chamber 2 is front installs No. I high pressure positive blower 1, the air inlet of No. I high pressure positive blower 1 also connects the filter 8 with screen pack 9, after the gas outlet of first order absorption chamber 2 connects foam separator 10 and surge tank 11, connect the air inlet of second level absorption chamber 4 again, air-introduced machine 5 is installed in the gas outlet of second level absorption chamber 4, and the gas outlet of air-introduced machine 5 connects room atmosphere.

Described first order absorption chamber 2 and the inside of second level absorption chamber 4 are all provided with filter 3, and filter 3 will be arranged on below liquid level.

The filter 3 of described first order absorption chamber 2 and the inside of second level absorption chamber 4 is organic fiber nets.

Above-mentioned connection is all connected by pipeline 6.

The classroom that described air purification method can be applicable to the more serious workshop of hospital infectious disease ward, laboratory, pollution, invade and harass by sudden pernicious gas or residential building aspect.

Embodiment 5

Air purification method of the present invention, use two-stage or multi-grade chemical drug solution absorption process to purify air, described two-stage or multi-grade chemical drug solution absorption process first suck first order absorption chamber 2 by entering indoor foul atmosphere, acid permanganate soln is adopted to absorb organic matter pernicious gas, and filter, then by blower fan, gas is passed into second level absorption chamber 4, adopt the pernicious gas with slant acidity that alkali liquor absorption is exported by first order absorption chamber 2, and filter, then blow through air-introduced machine 5 and enter indoor.

The acid permanganate soln of described first order absorption chamber 2 is the mixed aqueous solutions by potassium permanganate and diluted acid, and in mixed aqueous solution, the weight content of potassium permanganate is 1.5%, and the weight content of diluted acid is 4%.

The alkali lye of described second level absorption chamber 4 is weight contents is the NaOH of 3.5% or the aqueous solution of calcium hydroxide.

Described diluted acid is acetic acid or hydrochloric acid.

The acid potassium permanganate mixed aqueous solution of described first order absorption chamber 2 also adds the extract of soapberry fruit further, and the weight content of the extract of described soapberry fruit is 2%.

The extract of described soapberry fruit is that fresh or dry soapberry fruit is crushed to below 100 orders clear water lixiviate 2 times, each 2 hours, and per kilogram soapberry fruit adds water 4 kilograms, then filters the liquid obtained.

The equipment that described air purification method adopts is first order absorption chamber 2, second level absorption chamber 4 and the blower fan that is attached thereto, wherein the air inlet of first order absorption chamber 2 is front installs No. I high pressure positive blower 1, the air inlet of No. I high pressure positive blower 1 also connects the filter 8 with screen pack 9, after the gas outlet of first order absorption chamber 2 connects foam separator 10 and surge tank 11, connect the air inlet of second level absorption chamber 4 again, air-introduced machine 5 is installed in the gas outlet of second level absorption chamber 4, and the gas outlet of air-introduced machine 5 connects room atmosphere.

Described first order absorption chamber 2 and the inside of second level absorption chamber 4 are all provided with filter 3, and filter 3 will be arranged on below liquid level.

The filter 3 of described first order absorption chamber 2 and the inside of second level absorption chamber 4 is organic fiber nets.

Above-mentioned connection is all connected by pipeline 6.

The classroom that described air purification method can be applicable to the more serious workshop of hospital infectious disease ward, laboratory, pollution, invade and harass by sudden pernicious gas or residential building aspect.

Embodiment 6

Air purification method of the present invention, use two-stage or multi-grade chemical drug solution absorption process to purify air, described two-stage or multi-grade chemical drug solution absorption process first suck first order absorption chamber 2 by entering indoor foul atmosphere, acid permanganate soln is adopted to absorb organic matter pernicious gas, and filter, then by blower fan, gas is passed into second level absorption chamber 4, adopt the pernicious gas with slant acidity that alkali liquor absorption is exported by first order absorption chamber 2, and filter, then blow through air-introduced machine 5 and enter indoor.

The acid permanganate soln of described first order absorption chamber 2 is the mixed aqueous solutions by potassium permanganate and diluted acid, and in mixed aqueous solution, the weight content of potassium permanganate is 3%, and the weight content of diluted acid is 5%.

The alkali lye of described second level absorption chamber 4 is weight contents is the NaOH of 5% or the aqueous solution of calcium hydroxide.

Described diluted acid is sulfuric acid, acetic acid, hydrochloric acid, propionic acid or ethanedioic acid.

The acid potassium permanganate mixed aqueous solution of described first order absorption chamber 2 also adds the extract of soapberry fruit further, and the weight content of the extract of described soapberry fruit is 3%.

The extract of described soapberry fruit is that fresh or dry soapberry fruit is crushed to below 100 orders clear water lixiviate 2 times, each 2 hours, and per kilogram soapberry fruit adds water 5 kilograms, then filters the liquid obtained.

The equipment that described air purification method adopts is first order absorption chamber 2, second level absorption chamber 4 and the blower fan that is attached thereto, wherein the air inlet of first order absorption chamber 2 is front installs No. I high pressure positive blower 1, the air inlet of No. I high pressure positive blower 1 also connects the filter 8 with screen pack 9, after the gas outlet of first order absorption chamber 2 connects foam separator 10 and surge tank 11, connect the air inlet of second level absorption chamber 4 again, air-introduced machine 5 is installed in the gas outlet of second level absorption chamber 4, and the gas outlet of air-introduced machine 5 connects room atmosphere.

Described first order absorption chamber 2 and the inside of second level absorption chamber 4 are all provided with filter 3, and filter 3 will be arranged on below liquid level.

The filter 3 of described first order absorption chamber 2 and the inside of second level absorption chamber 4 is organic fiber nets.

Above-mentioned connection is all connected by pipeline 6.

The classroom that described air purification method can be applicable to the more serious workshop of hospital infectious disease ward, laboratory, pollution, invade and harass by sudden pernicious gas or residential building aspect.

Embodiment 7

Air purification method of the present invention, use two-stage or multi-grade chemical drug solution absorption process to purify air, described two-stage or multi-grade chemical drug solution absorption process first suck first order absorption chamber 2 by entering indoor foul atmosphere, acid permanganate soln is adopted to absorb organic matter pernicious gas, and filter, then by blower fan, gas is passed into second level absorption chamber 4, adopt the pernicious gas with slant acidity that alkali liquor absorption is exported by first order absorption chamber 2, and filter, then blow through air-introduced machine 5 and enter indoor.

The acid permanganate soln of described first order absorption chamber 2 is the mixed aqueous solutions by potassium permanganate and diluted acid, and in mixed aqueous solution, the weight content of potassium permanganate is 0.5%, and the weight content of diluted acid is 3%.

The alkali lye of described second level absorption chamber 4 is weight contents is the NaOH of 2% or the aqueous solution of calcium hydroxide.

Described diluted acid is sulfuric acid, propionic acid or ethanedioic acid.

The acid potassium permanganate mixed aqueous solution of described first order absorption chamber 2 also adds the extract of soapberry fruit further, and the weight content of the extract of described soapberry fruit is 1%.

The extract of described soapberry fruit is that fresh or dry soapberry fruit is crushed to below 100 orders clear water lixiviate 2 times, each 2 hours, and per kilogram soapberry fruit adds water 3 kilograms, then filters the liquid obtained.

The equipment that described air purification method adopts is first order absorption chamber 2, second level absorption chamber 5 and the blower fan be attached thereto, high pressure positive blower is not installed before the air inlet of wherein first order absorption chamber 2, its air inlet is directly connected with outdoor air, be be connected No. I high pressure positive blower 1 between the gas outlet place of first order absorption chamber 2 and the air inlet place of second level absorption chamber 4, air-introduced machine 5 is installed at the gas outlet place of second level absorption chamber 4, and the gas outlet of air-introduced machine 5 connects room atmosphere.

Described first order absorption chamber 2 and the inside of second level absorption chamber 4 are all provided with filter 3, and filter 3 will be arranged on below liquid level.

The filter 3 of described first order absorption chamber 2 and the inside of second level absorption chamber 4 is organic fiber nets.

Above-mentioned connection is all connected by pipeline 6.

The classroom that described air purification method can be applicable to the more serious workshop of hospital infectious disease ward, laboratory, pollution, invade and harass by sudden pernicious gas or residential building aspect.

Embodiment 8

Air purification method of the present invention, use two-stage or multi-grade chemical drug solution absorption process to purify air, described two-stage or multi-grade chemical drug solution absorption process first suck first order absorption chamber 2 by entering indoor foul atmosphere, acid permanganate soln is adopted to absorb organic matter pernicious gas, and filter, then by blower fan, gas is passed into second level absorption chamber 4, adopt the pernicious gas with slant acidity that alkali liquor absorption is exported by first order absorption chamber 2, and filter, then blow through air-introduced machine 5 and enter indoor.

The acid permanganate soln of described first order absorption chamber 2 is the mixed aqueous solutions by potassium permanganate and diluted acid, and in mixed aqueous solution, the weight content of potassium permanganate is 1.5%, and the weight content of diluted acid is 4%.

The alkali lye of described second level absorption chamber 4 is weight contents is the NaOH of 2-5% or the aqueous solution of calcium hydroxide.

Described diluted acid is sulfuric acid, acetic acid, hydrochloric acid, propionic acid or ethanedioic acid.

The acid potassium permanganate mixed aqueous solution of described first order absorption chamber 2 also adds the extract of soapberry fruit further, and the weight content of the extract of described soapberry fruit is 2%.

The extract of described soapberry fruit is that fresh or dry soapberry fruit is crushed to below 100 orders clear water lixiviate 2 times, each 2 hours, and per kilogram soapberry fruit adds water 4 kilograms, then filters the liquid obtained.

The equipment that described air purification method adopts is first order absorption chamber 2, second level absorption chamber 5 and the blower fan be attached thereto, high pressure positive blower is not installed before the air inlet of wherein first order absorption chamber 2, its air inlet is directly connected with outdoor air, be be connected No. I high pressure positive blower 1 between the gas outlet place of first order absorption chamber 2 and the air inlet place of second level absorption chamber 4, air-introduced machine 5 is installed at the gas outlet place of second level absorption chamber 4, and the gas outlet of air-introduced machine 5 connects room atmosphere.

Described first order absorption chamber 2 and the inside of second level absorption chamber 4 are all provided with filter 3, and filter 3 will be arranged on below liquid level.

The filter 3 of described first order absorption chamber 2 and the inside of second level absorption chamber 4 is organic fiber nets.

Above-mentioned connection is all connected by pipeline 6.

The classroom that described air purification method can be applicable to the more serious workshop of hospital infectious disease ward, laboratory, pollution, invade and harass by sudden pernicious gas or residential building aspect.

Embodiment 9

Air purification method of the present invention, use two-stage or multi-grade chemical drug solution absorption process to purify air, described two-stage or multi-grade chemical drug solution absorption process first suck first order absorption chamber 2 by entering indoor foul atmosphere, acid permanganate soln is adopted to absorb organic matter pernicious gas, and filter, then by blower fan, gas is passed into second level absorption chamber 4, adopt the pernicious gas with slant acidity that alkali liquor absorption is exported by first order absorption chamber 2, and filter, then blow through air-introduced machine 5 and enter indoor.

The acid permanganate soln of described first order absorption chamber 2 is the mixed aqueous solutions by potassium permanganate and diluted acid, and in mixed aqueous solution, the weight content of potassium permanganate is 3%, and the weight content of diluted acid is 5%.

The alkali lye of described second level absorption chamber 4 is weight contents is the NaOH of 5% or the aqueous solution of calcium hydroxide.

Described diluted acid is sulfuric acid, acetic acid, hydrochloric acid, propionic acid or ethanedioic acid.

The acid potassium permanganate mixed aqueous solution of described first order absorption chamber 2 also adds the extract of soapberry fruit further, and the weight content of the extract of described soapberry fruit is 3%.

The extract of described soapberry fruit is that fresh or dry soapberry fruit is crushed to below 100 orders clear water lixiviate 2 times, each 2 hours, and per kilogram soapberry fruit adds water 5 kilograms, then filters the liquid obtained.

The equipment that described air purification method adopts is first order absorption chamber 2, second level absorption chamber 5 and the blower fan be attached thereto, high pressure positive blower is not installed before the air inlet of wherein first order absorption chamber 2, its air inlet is directly connected with outdoor air, be be connected No. I high pressure positive blower 1 between the gas outlet place of first order absorption chamber 2 and the air inlet place of second level absorption chamber 4, air-introduced machine 5 is installed at the gas outlet place of second level absorption chamber 4, and the gas outlet of air-introduced machine 5 connects room atmosphere.

Described first order absorption chamber 2 and the inside of second level absorption chamber 4 are all provided with filter 3, and filter 3 will be arranged on below liquid level.

The filter 3 of described first order absorption chamber 2 and the inside of second level absorption chamber 4 is organic fiber nets.

Above-mentioned connection is all connected by pipeline 6.

The classroom that described air purification method can be applicable to the more serious workshop of hospital infectious disease ward, laboratory, pollution, invade and harass by sudden pernicious gas or residential building aspect.

Above-mentioned explanation is not limitation of the present invention, and the present invention is also not limited to above-mentioned example, those skilled in the art, and in essential scope of the present invention, the change made, remodeling, interpolation or replacement, all should belong to protection scope of the present invention.

Claims (10)

1. an air purification method, it is characterized in that: described air purification method purifies air for using two-stage or multi-grade chemical drug solution absorption process, described two-stage or multi-grade chemical drug solution absorption process first suck first order absorption chamber by entering indoor foul atmosphere, acid permanganate soln is adopted to absorb organic matter pernicious gas, and filter, then by blower fan, gas is passed into second level absorption chamber, adopt the pernicious gas with slant acidity that alkali liquor absorption is exported by first order absorption chamber, and filter, then blow through air-introduced machine and enter indoor;

The acid permanganate soln of described first order absorption chamber is the mixed aqueous solution by potassium permanganate and diluted acid, and in mixed aqueous solution, the weight content of potassium permanganate is 0.5-3%, and the weight content of diluted acid is 3-5%;

The alkali lye of described second level absorption chamber is weight content is the NaOH of 2-5% or the aqueous solution of calcium hydroxide.

2. air purification method according to claim 1, is characterized in that: described diluted acid is sulfuric acid, acetic acid, hydrochloric acid, propionic acid or ethanedioic acid.

3. air purification method according to claim 1, is characterized in that: the acid potassium permanganate mixed aqueous solution of described first order absorption chamber also adds the extract of soapberry fruit further, and the weight content of the extract of described soapberry fruit is 1-3%; The extract of described soapberry fruit is that fresh or dry soapberry fruit is crushed to below 100 orders clear water lixiviate 2 times, each 2 hours, and per kilogram soapberry fruit adds water 3-5 kilogram, then filters the liquid obtained.

4. air purification method according to claim 1, is characterized in that: described multistage chemicals solution absorption method is two acid permanganate soln absorption chambers of simultaneously connecting; Or two-stage absorption chamber is connected an air purifying room later.

5. air purification method according to claim 1, it is characterized in that: the equipment that described air purification method adopts is first order absorption chamber, second level absorption chamber and the blower fan that is attached thereto, wherein the air inlet of first order absorption chamber is front installs a high pressure positive blower, and after the gas outlet place of first order absorption chamber also connects a high pressure positive blower, connect the air inlet of second level absorption chamber again, air-introduced machine is installed in the gas outlet of second level absorption chamber, and the gas outlet of air-introduced machine connects room atmosphere.

6. air purification method according to claim 1, it is characterized in that: the equipment that described air purification method adopts is first order absorption chamber, second level absorption chamber and the blower fan that is attached thereto, wherein the air inlet of first order absorption chamber is front installs a high pressure positive blower, high pressure positive blower air inlet also connects filter, after the gas outlet of first order absorption chamber connects foam separator and surge tank, connect the air inlet of second level absorption chamber again, air-introduced machine is installed in the gas outlet of second level absorption chamber, and the gas outlet of air-introduced machine leads to indoor.

7. air purification method according to claim 1, it is characterized in that: the equipment that described air purification method adopts is first order absorption chamber, second level absorption chamber and the blower fan be attached thereto, high pressure positive blower is not installed before the air inlet of wherein first order absorption chamber, its air inlet is directly connected with outdoor air, high pressure positive blower is connected between the gas outlet place of first order absorption chamber with absorption chamber air inlet place, the second level, air-introduced machine is installed at the gas outlet place of second level absorption chamber, and the gas outlet of air-introduced machine leads to indoor.

8. the air purification method according to any one of claim 5,6 and 7, is characterized in that: described first order absorption chamber and the inside of second level absorption chamber are all provided with filter, and filter will be arranged on below liquid level.

9. the air purification method according to any one of claim 5,6 and 7, is characterized in that: the filter of described first order absorption chamber and the inside of second level absorption chamber is organic fiber net.

10. the application of air purification method according to claim 1 in the more serious workshop of hospital infectious disease ward, laboratory, pollution, the classroom invaded and harassed by sudden pernicious gas or residential building.