CN104645766A - Air filter - Google Patents

Air filter Download PDF

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Publication number
CN104645766A
CN104645766A CN201510018062.XA CN201510018062A CN104645766A CN 104645766 A CN104645766 A CN 104645766A CN 201510018062 A CN201510018062 A CN 201510018062A CN 104645766 A CN104645766 A CN 104645766A
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particle
air
liquid
cylinder
filter
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CN201510018062.XA
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CN104645766B (en
Inventor
朱作霖
朱振吉
孙善庆
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Ningbo Yuchen Environmental Protection Technology Co Ltd
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Ningbo Yuchen Environmental Protection Technology Co Ltd
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Abstract

The invention discloses an air filter. The air filter consists of a cylinder body, and liquid and solid particles contained in the cylinder body, wherein an air inlet and an air outlet are formed in the cylinder body, and the solid particles have reducibility. The air filter disclosed by the invention has the beneficial effects that the air filter can filter and remove particles, ozone and nitrogen oxides in air simultaneously, existing filters all have solid moulds, and the air filter disclosed by the invention has a liquid mould. According to the air filter provided by the invention, the solid particles are effectively dispersed into the liquid, the particles in the air are effectively intercepted by utilizing a similar liquid mixed crystal system formed by solid and liquid, so as to achieve the purpose of filtering and removing the particles in the air. The air filter has a remarkable effect for removing the particles, the ozone and the nitrogen oxides, relatively low cost and a wide market application prospect.

Description

A kind of air cleaner
Technical field
The invention belongs to technical field of air purification, be specifically related to a kind of can the air cleaner of particulate, ozone and oxynitrides simultaneously in filtering air.
Background technology
Local space purification of air is current antagonism air-polluting Main Means, because the time of the overwhelming majority of the mankind is in indoor, indoor air purification is the emphasis that everybody is concerned about, with outdoor air and industrial area air very different, indoor major air pollutants based on volatile organic matter, have a certain amount of microorganism (germ, virus, fungi, etc.) and a small amount of particulate (as PM2.5).Volatile organic matter derives from kitchen activity (as the coal gas of burning, the decomposition of food and intrinsic volatile component), the release of smoking, indoor hardware fitting and furniture and outside atmosphere to room Inner eycle etc.The result of study display in Lawrence Berkeley National laboratory (Lawrence Berkeley NationalLaboratory), indoor volatile organic matter, has kind more than 100 to exceed standard.Living environment indoor is in addition suitable for microbial growth, nutritious, proper temperature, so the content of microorganisms of indoor, in most of the cases, all higher than outdoor.The source of indoor generation particulate is less, and outdoor air is entering in indoor process the stop interception had repeatedly, so the particle number of indoor, in most cases, well below outdoor air.So for the purification of air of indoor, emphasis removes volatile organic matter, removes the particulate in microorganism and air simultaneously.
The method of the destruction volatile organic matter of current maturation, comprise high-temp combustion, ionization, UV activation and catalysis, ozone oxidation etc., destroy in the process of volatile organic matter and all produce these secondary pollutions larger to harm such as ozone, oxynitrides.Known oxynitrides absorption process, no matter be liquid phase scrubbing (ChemicalEngineering Science, roll up 60,2005, page 6462 – 6471) or traditional limewash oxidative absorption (Environment Protection Engineering, volume 37,, page 13-22 in 2011), need to absorb or adsorption material doses all very large, and there will be the problem of gas passage blocking, it is a challenge that these technological means are applied to Household Air Purifier.And (document is consulted: the EPA report in 2006 of Environmental Protection in America general administration, EPA/600/R-05/004aF-cF after the harm of scientific research result display ozone is greater than volatile organic matter; Ozone ' s impact on publichealth, 2006, Environmental Health Perpsectives, volume 114, page 1489-1496; Proceedingsof Healthy Buildings 2009, Paper 141; Etc.), and finding that although the ozone aerial half-life exists difference with the change of condition, the half-life of ozone all dozens of minutes, even several thousand minutes, and is not originally inferred, due to the strong oxidizing property of ozone, it can rapidly disappear under indoor environment.In addition, up-to-date result of study [Concentrations on the order of 10ppb can lead to significant health effects (Lawrence Berkeley National Laboratory, 2012, LBNL-5889E) inference of a lot of scientist] is confirmed, " because the oxidability of ozone is very strong; therefore, as long as Body contact is to ozone, will cause damage to health ".Therefore, the scientist of this area has carried out a large amount of experiments, manages the way finding suitable removing indoor ozone.But, up to now, do not find suitable sweep-out method.Existing heating, refrigeration and air-conditioning system is utilized to remove indoor ozone, found that, while ozone oxidation damages existing system, produce a large amount of volatile organic matters (as carbonyl organic matter, formic acid such as formaldehyde) and ultrafine dust (see document: Proceedings of Indoor Air ' 05, the 10th International Conference on Indoor Air Quality and Climate II, Beijing, China, page 1521 – 1525; With 2006, Atmospheric Environment, volume 40, page 315-325), be equivalent to the mutual conversion between volatile organic matter and ozone, consume energy, but do not work.Indoor ozone removed by the filter (Filters) using reducing substances to prepare, poly-(1 of such as silanization, 4-phenylene sulfide) [PFS:Silanized poly (Isosorbide-5-Nitrae-phenylene sulfide)], sodium sulfite (Na2SO3), sodium thiosulfate (Na 2s 2o 3), KI (KI) (consults: Environ Sci Technol.2001, volume 35, page 1458-62) and reproducibility activated carbon (consult: Am Ind Hyg Assoc J.1999 year, volume 60, page 589-600) etc., the solid due to these materials is fixed in filter for installation, only have these materials surface can and ozone reaction, and inside does not utilize owing to cannot touch ozone, so the amount of substance needed is very large.Such as, even if adopt very thin NACF, reproducibility active carbon and ozone reaction remove the ability of ozone, the highlyest can only reach 0.2 gram of ozone/gram active carbon (theoretical value should reach 2.67 grams of ozone/gram active carbon.Proceedings of the 8thInternational Conference on Indoor Air Quality and Climate,Indoor Air 99,Edinburgh,Scotland,Aug.8-13,1999,Vol.4,p.49-54)。In use catalyst degrade ozone field, usually need to use very expensive metallic catalyst, such as platinum (Pt), gold (Au) etc., and the activity decrease of catalyst (is consulted: Atmospheric Environment very soon, volume 6,1972, page 707 – 714).
For indoor air cleaner, need a kind of new filter system, while can filtering removal chamber particle, the ozone in air and oxynitrides can be removed.
Summary of the invention
The invention provides a kind of air cleaner, the technological deficiency to the larger secondary pollution of harm such as ozone, oxynitrides to be produced while prior art destroys volatile organic matter by high-temp combustion, ionization, UV activation and catalysis, Ozone oxidation method etc. to solve.
In order to solve above technical problem, the technical scheme that the present invention takes is:
A kind of air cleaner, described air cleaner by cylinder body, be contained in liquid in described cylinder body and solid particle is formed, described cylinder body is provided with air inlet and gas outlet, described solid particle possesses reproducibility.
Be preferably, described liquid is glycerine (Glycerin), vegetable oil (Vegetable oils), silicone oil (Siliconeoil), conduction oil and Liquid polymeric are as polyethylene glycol (PEG), chlorination-1-ethyl-3-methylimidazole (1-Ethyl-3-methyl imidazol ium chloride), 1-ethyl-3-methylimidazole dicyan amine salt (1-Ethyl-3-methylimidazolium dicyanamide), bromination-1-butyl-3, 5-lutidines (1-butyl-3, 5-dimethylpyridinium bromide), 1-butyl-3-methylimidazole tetrafluoride boron (1-butyl-3-methylimidazolium tetrafluoroborate) and N-methyl-N-butyl hexafluorophosphate (N-methyl-N-butylpyrrol idinium hexafluorophosphate).
Be preferably, described solid particle is poly-(1 of silanization, 4-phenylene sulfide) [PFS:Silanizedpoly (Isosorbide-5-Nitrae-phenylene sulfide)] particle, sodium sulfite (Na2SO3) particle, sodium thiosulfate (Na2S2O3) particle, KI (KI) particle, reproducibility active carbon particle, iron powder and manganese dioxide particle.
Be preferably, described solid particle is reproducibility active carbon particle, iron powder and manganese dioxide particle.
Be preferably, the size of described solid particle is 10-200 order.
Be preferably, the content of described solid particle in described liquid is 5%-20%.
After employing technique scheme, air cleaner provided by the invention (Filter) can cross the particulate, ozone and the oxynitrides that filter in air simultaneously, existing filter is all solid mold (Matrix), and filter of the present invention is liquid mold.Solid particle is effectively distributed in liquid by air cleaner provided by the invention, utilizes the similar liquids mixed crystal system that solid and liquid are formed, the particulate effectively in interception air, thus reaches the object of filtering and removing particulate in air.The Be very effective of particulate, ozone and oxynitrides removed by air cleaner, and cost is lower, has wide market application foreground.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the topology view of air cleaner embodiment 1 of the present invention;
Fig. 2 is the topology view of air cleaner embodiment 2 of the present invention;
Fig. 3 is the topology view of air cleaner embodiment 3 of the present invention.
Detailed description of the invention
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Air cleaner by cylinder body 1, be contained in liquid 2 in cylinder body 1 and solid particle 3 is formed, cylinder body 1 is provided with air inlet 11 and gas outlet 12, and cylinder body 1 is transparent material.
Liquid 2 is for higher boiling or do not have volatility, and liquid 2 is got along well, solid particle 3 reacts, and liquid 2 is that glycerine (Glycerin), vegetable oil (Vegetable oils), silicone oil (Silicone oil), conduction oil and Liquid polymeric are as polyethylene glycol (PEG).It is at room temperature liquid ionic liquid, such as chlorination-1-ethyl-3-methylimidazole (1-Ethyl-3-methylimidazolium chloride), 1-ethyl-3-methylimidazole dicyan amine salt (1-Ethyl-3-methyl imidazol ium dicyanamide), bromination-1-butyl-3, 5-lutidines (1-butyl-3, 5-dimethylpyridinium bromide), 1-butyl-3-methylimidazole tetrafluoride boron (1-butyl-3-methylimidazolium tetrafluoroborate) and N-methyl-N-butyl hexafluorophosphate (N-methyl-N-butylpyrrolidinium hexafluorophosphate).
Possess the filter of the ability removing ozone and oxynitrides, solid particle 3 possesses certain reproducibility, and owing to containing a large amount of oxygen and aqueous vapor in air, solid particle 3 again can with oxygen and water reaction.Solid particle 3 is poly-(1 of silanization, 4-phenylene sulfide) [PFS:Silanized poly (Isosorbide-5-Nitrae-phenylene sulfide)] particle, sodium sulfite (Na2SO3) particle, sodium thiosulfate (Na2S2O3) particle, KI (KI) particle, reproducibility active carbon particle, iron powder and manganese dioxide particle.Preferably select reproducibility active carbon particle, iron powder and manganese dioxide particle.
The size of solid particle 3 generally selects 10-200 order, and solid particle 3 is greater than 10 orders, corresponding surface area and the ratio of weight too little, cause that can to participate in reacting the solid weight percentage removing ozone fast too little, DeGrain.Solid particle 3 is greater than 200 orders, although the solid weight percentage that can participate in reacting removing ozone is fast large, but when this 200 object solid particles 3 that are greater than are distributed to after in liquid 2, the viscosity of filter medium is too large, the pressure reduction range of decrease in filter is too large, does not therefore generally select and is greater than 200 object solid particles 3.
Filter provided by the invention, the content of solid particle 3 in liquid 2, generally between 5%-20%, although proportion is less than 5% also effective, the ability that ozone removed by filter is lower, also not preferred; Proportion higher than 20% time filter medium viscosity too large, also not preferred.
Filter provided by the invention is similar to existing filter, equally also needs gas to be filtered to pass through filter.As long as it is all feasible that gas and filter can be allowed fully to contact.Generally, the gas be filtered enters from the bottom of filter, then leave from the top of filter, and the effect of filtering gas is best.
Embodiment 1:
As shown in Figure 1: filter by cylinder body 1, be contained in liquid 2 in cylinder body 1 and solid particle 3 is formed, cylinder body 1 is provided with air inlet 11 and gas outlet 12, and cylinder body 1 is transparent material, there are two both sides laying respectively at air inlet 11 gas outlet 12, and air inlet 11 and gas outlet 12 are all positioned at the top of cylinder body 1.
The first step: need filtered air pass through the to mediate air inlet 11 at position to enter in liquid 2, then enter liquid 2 bottom air inlet 11, thus gas enters from the bottom of filter; Second step: gas is filtered by liquid 2 and solid particle 3; 3rd step: the air after filtration, leaves filter by gas outlet 12.
Embodiment 2:
As shown in Figure 2: filter by cylinder body 1, be contained in liquid 2 in cylinder body 1 and solid particle 3 is formed, cylinder body 1 is provided with air inlet 11 and gas outlet 12, and cylinder body 1 is transparent material, there are two both sides laying respectively at air inlet 11 gas outlet 12, air inlet 11 is positioned at the below of cylinder body 1, and two gas outlets 12 are positioned at the top of cylinder body 1.
The first step: the air inlet 11 needing filtered air to pass through to be in cylinder body 1 middle part enters, then under the effect in air inlet 11 mozzle face, gas, by leaving bottom air inlet 11 and entering in liquid 2, completes gas and enters from the bottom of filter; Second step: gas is filtered by liquid 2 and solid particle 3; 3rd step: the air after filtering, leaves filter by gas outlet 12.
Embodiment 3:
As shown in Figure 3: filter by cylinder body 1, be contained in liquid 2 in cylinder body 1 and solid particle 3 is formed, cylinder body 1 is provided with air inlet 11 and gas outlet 12, and cylinder body 1 is transparent material, air inlet 11 and gas outlet 12 respectively have one, air inlet 11 is positioned at the left side of cylinder body 1, and gas outlet 12 is positioned at the right side of cylinder body 1.
The first step: the air inlet 11 needing filtered air to pass through to be in cylinder body 1 middle part enters, then under the effect in air inlet 11 mozzle face, gas, by leaving bottom air inlet 11 and entering in liquid 2, completes gas and enters from the bottom of filter; Second step: gas is filtered by liquid 2 and solid particle 3; 3rd step: the air after filtering, leaves filter by gas outlet 12.
The all data provided in experiment are all the mean value of at least three parallel test results.
Experiment one: remove particulate in air
Use the clear glass filter shown in accompanying drawing 3, be beneficial to viewing test process, cylinder body 1 is transparent material, and the height H of cylinder body 1 is 30 centimetres, the diameter D of cylinder body 1 is 20 centimetres, the diameter d of air inlet 11 is 8 centimetres, and the bottom of air inlet 11 is 3 centimetres from the distance from bottom of cylinder body 1.
In cylinder body 1, add solid particle 3 be 50 object iron powders and liquid 2 is edible soybean oil 6.5 liters.And air is passed in filter, air velocity is 1.5 meter per seconds, the particle number respectively in air inlet 11 place and gas outlet 12 place mensurated gas composition, and result is as follows:
Result shows: filter uses iron powder and do not use iron powder and compare, the particulate effect highly significant in use iron powder filtered air.
Liquid 2 selects silicone oil, conduction oil, liquid macrogol, glycerine, and effect and liquid 2 select the filter effect of soybean oil consistent.
Experiment two: remove ozone in air
Use the clear glass filter in embodiment 3.
In filter, add solid particle 3 be the active carbon 100 grams of different meshes and liquid 2 is edible soybean oil 6.5 liters.In the leakage test cabin of 30 cubic metres, use the air intake pump of 150 cubes ms/h to air intake in filter, maintain ozone concentration by the method adding ozone in leakage test cabin and stablize 100ppb (0.1ppm), until the ozone concentration in leakage test cabin no longer declines.Edible oil is not added relative in solid particle 3.The ozone amount that calculated activity charcoal absorbs, result is as follows:
Ozone Absorption amount
(gram ozone/gram active carbon)
Do not use liquid 100 order 0.17
35 order active carbons 0.89
50 order active carbons 1.12
100 order active carbons 1.33
200 order active carbons 1.28
400 order active carbons 1.33
Result shows: when using filter, and active carbon absorbs the ability of ozone far away higher than being used alone active carbon to reduce ozone.Do not use liquid 2, when activated carbon granule only has 100 order, the ability of the destruction ozone of active carbon only has 0.17 (gram ozone/gram active carbon); When having liquid 2 to exist, even very large activated carbon granule, as 35 object activated carbon granules, the ability of its degrade ozone improves more than 5 times.
Experiment three: remove ozone and oxynitrides in air
Use the new filter of clear glass in embodiment 3.
In filter, add solid particle 3 be 50 object iron powder 650 grams and liquid 2 is edible soybean oil 6.5 liters.
Use the air intake pump of 150 cubes ms/h, air is passed in filter, particle number, ozone concentration, oxynitride concentration respectively in air inlet 11 place and gas outlet 12 place mensurated gas composition, the particle number of air inlet is 180 micrograms/cubic meter, ozone concentration is 110ppb, oxynitride concentration is 335ppb, measure the change of gas port pollutant levels, and result is as follows:
Result shows, filter provided by the invention, and filter the ability removing air pollutants particulate, ozone, oxynitrides, highly stable, after 72 hours, filter effect does not decline.
Experiment four: remove ozone catalyst seed activity in air
Use the clear glass filter in embodiment 3.
In filter, add solid particle 3 is 50 object manganese oxide (MnO2) particle 650 grams, and contrast adding liquid 2 is the silicone oil of 6.5 liters and does not use the deozonize capacity variation of liquid 2.
Use the air intake pump of 150 cubes ms/h, air is passed in filter, particle number, ozone concentration, oxynitride concentration respectively in air inlet 11 place and gas outlet 12 place mensurated gas composition, the ozone concentration of air inlet 11 is 110ppb, measure the change of gas port pollutant levels, result is as follows:
Result shows, use the filter of liquid 2, for catalyst oxidation manganese, the ability of filter single degrade ozone is highly stable, after 72 hours, degradation effect does not decline, and when not using liquid 2, the ability of single degrade ozone lower than the situation having liquid 2, and presents progressively downward trend.
Air cleaner provided by the invention (Filter) can cross the particulate, ozone and the oxynitrides that filter in air simultaneously, and existing filter is all solid mold (Matrix), and filter of the present invention is liquid mold.Solid particle 3 is effectively distributed in liquid 2 by air cleaner provided by the invention, utilizes the similar liquids mixed crystal system that solid and liquid are formed, the particulate effectively in interception air, thus reaches the object of filtering and removing particulate in air.The Be very effective of particulate, ozone and oxynitrides removed by air cleaner, and cost is lower, has wide market application foreground.
Last it is noted that above embodiment only illustrates technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (6)

1. an air cleaner, is characterized in that, described air cleaner by cylinder body, be contained in liquid in described cylinder body and solid particle is formed, described cylinder body is provided with air inlet and gas outlet, described solid particle possesses reproducibility.
2. air cleaner according to claim 1, it is characterized in that, described liquid is glycerine (Glycerin), vegetable oil (Vegetable oils), silicone oil (Silicone oil), conduction oil and Liquid polymeric are as polyethylene glycol (PEG), chlorination-1-ethyl-3-methylimidazole (1-Ethyl-3-methylimidazolium chloride), 1-ethyl-3-methylimidazole dicyan amine salt (1-Ethyl-3-methylimidazolium dicyanamide), bromination-1-butyl-3, 5-lutidines (1-butyl-3, 5-dimethylpyridinium bromide), 1-butyl-3-methylimidazole tetrafluoride boron (1-butyl-3-methylimidazolium tetrafluoroborate) and N-methyl-N-butyl hexafluorophosphate (N-methyl-N-butylpyrrolidinium hexafluorophosphate).
3. air cleaner according to claim 1, it is characterized in that, described solid particle is poly-(1 of silanization, 4-phenylene sulfide) [PFS:Silanized poly (Isosorbide-5-Nitrae-phenylene sulfide)] particle, sodium sulfite (Na2SO3) particle, sodium thiosulfate (Na2S2O3) particle, KI (KI) particle, reproducibility active carbon particle, iron powder and manganese dioxide particle.
4. air cleaner according to claim 3, is characterized in that, described solid particle is reproducibility active carbon particle, iron powder and manganese dioxide particle.
5. air cleaner according to claim 4, is characterized in that, the size of described solid particle is 10-200 order.
6. air cleaner according to claim 1, is characterized in that, the content of described solid particle in described liquid is 5%-20%.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105903307A (en) * 2016-04-06 2016-08-31 山东宝梵环保科技有限公司 Air purifying composition and preparation method and application method thereof, and formation method for elliptical granules of air purifying composition

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002074419A1 (en) * 2001-03-19 2002-09-26 Hmi Industries, Inc. Filter system
CN101584956A (en) * 2008-05-23 2009-11-25 东莞市龙记环保工程有限公司 Triphen waste gas treatment device of porous medium material
CN201578965U (en) * 2009-05-11 2010-09-15 陈功平 Air purifier
CN102101050A (en) * 2009-12-16 2011-06-22 李弘基 Method for preparing catalyst for quickly decomposing ozone in air and application
CN203777863U (en) * 2013-12-18 2014-08-20 宁波市雨辰环保科技有限公司 Air purifier

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002074419A1 (en) * 2001-03-19 2002-09-26 Hmi Industries, Inc. Filter system
CN101584956A (en) * 2008-05-23 2009-11-25 东莞市龙记环保工程有限公司 Triphen waste gas treatment device of porous medium material
CN201578965U (en) * 2009-05-11 2010-09-15 陈功平 Air purifier
CN102101050A (en) * 2009-12-16 2011-06-22 李弘基 Method for preparing catalyst for quickly decomposing ozone in air and application
CN203777863U (en) * 2013-12-18 2014-08-20 宁波市雨辰环保科技有限公司 Air purifier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105903307A (en) * 2016-04-06 2016-08-31 山东宝梵环保科技有限公司 Air purifying composition and preparation method and application method thereof, and formation method for elliptical granules of air purifying composition

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