CN101058052A - Indoor air purifying device - Google Patents
Indoor air purifying device Download PDFInfo
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- CN101058052A CN101058052A CN 200710028239 CN200710028239A CN101058052A CN 101058052 A CN101058052 A CN 101058052A CN 200710028239 CN200710028239 CN 200710028239 CN 200710028239 A CN200710028239 A CN 200710028239A CN 101058052 A CN101058052 A CN 101058052A
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Abstract
The invention relates to an indoor air purification device that comprises the air inlet, shell, air blower, air exhauster, vacuum pump and volatile organic compound outlet, with hollow fiber inside the shell, epoxide resin roll end separating the hollow fiber into shell and tube, forming into a tubular heat exchanger, the said air inlet connected with one end of the shell, which connects with the vacuum pump, volatile organic compound outlet connected with the vacuum pump, the other end of the wind blower connected with the other end of the shell and connected to the wind blower, indoor volatile organic permeated into the tube and the shell under the drawing force of the vacuum pump, exhausting the said volatile organic compound through its outlet. It can effectively remove most of the volatile organic compound with efficiency over 80%. It is more efficient, energy economical and environmental protective.
Description
Technical field
The present invention relates to a kind of air purifying process, particularly a kind of technology and device that utilizes doughnut to purify the air of a room.
Background technology
Good indoor air environment is most important to health.Last century, the seventies energy crisis and building and development of technologies caused building resh air requirement minimizing in seal raising, operation energy consumption decline, the building; On the other hand, new decorative material for building is widely applied, the some of them discharge of noxious gases.Therefore the long-term people of live and work in modern architecture often show a series of stiff reactions: headache, sleepy, nauseating and have a running nose etc. is called as " Cure of Sick Building Syndrome ".It is reported that the direct economic loss that the U.S. causes because of indoor air quality is inferior every year is up to more than 40,000,000,000 dollars, the whole world has 2,400 ten thousand people's death relevant every year with indoor pollution; China reaches 110,000 more than by the death toll that room air pollution causes every year in recent years, about hundred billion RMB of economic loss that cause because of the indoor environmental pollution health risk every year, therefore, indoor air quality improvement and control become many national government, researcher and common people's question of common concern.
Causing the inferior main cause of indoor air quality is that binding agent, coating and the paint etc. that use in indoor building materials, furniture and the fitment process discharge a large amount of VOCs (VOCs).VOCs is the general name of the lower boiling organic compound of a class, usually all indoor organic gas materials is called VOCs.They can produce tangible harmful effect to people's respiratory system, the cardiovascular system nervous system of unifying, even also can be carcinogenic.Therefore, indoor VOCs concentration is too high to be to cause indoor air quality inferior, thereby causes the main cause of Cure of Sick Building Syndrome.Therefore how the interior airborne VOCs of decontamination chamber is the key that realizes indoor air quality control.
Air purifier is the equipment that separates and remove one or more pollutants from air.Using air purifier, is to improve IAQ, the healthy comfortable highly effective method of indoor environment of creation.Present air purification method mainly contains physisorphtion, method of chemical treatment, ionization method and photocatalytic method.Among these purification techniques, have only physical absorption law technology comparative maturity, other several method still is in the basic research stage of mechanism, and also there are many obstacles in the practicability aspect at present.
The physical absorption ratio juris is when the air flow stream that contains VOCs is crossed the porous solid absorbent, because the intermolecular model ylid bloom action power between adsorbent and the VOCs, the VOCs molecule is adsorbed in the micropore of solid absorbent, thereby airborne VOCs is removed.Its advantage is that the occasion that adsorption rate is fast, pollutant levels are high and low is all applicable, and principle and technology be comparative maturity also.But, needing regeneration after adsorbent is saturated, this need consume extra heat, will bring the huge waste of the energy during use.In addition, the frequent absorption/regeneration of adsorbent also can make adsorbent have the possibility of deterioration, the decay that brings detergent power.
The Chinese invention patent of application number 200510077239.X, open day is on 01 04th, 2006, it discloses a kind of film separating air purifier, comprises blast device and air-separating plant.It is characterized in that, described air-separating plant includes the diffusion barrier of the densely covered micropore of membranous wall, described diffusion barrier is more than 1 layer or 2 layers, employing has selects the diffusion barrier of the ability that sees through to do separating medium, air flows to diffusion barrier under the effect of blast device, molecule less than the gas of membranous wall micropore by membranous wall for leaching gas, and molecule dams greater than the separated film of the gas of membranous wall micropore, thereby reaches the purpose that gas separates.This air purifying process adopts microporous barrier to separate, and separating mechanism is the molecule screening, and a kind of VOCs gas can only be separated in a kind of aperture, and separating effect is very poor, adds that the flat sheet membrane loading density is little, and mass-transfer efficiency is low, and air purification effect is not good.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, a kind of energy-conservation, indoor air-purification device efficiently is provided.
Indoor air-purification device of the present invention comprises air inlet, housing, blower fan, exhaust outlet, vavuum pump and VOC (VOCs, down together) outlet; Be provided with doughnut in the described housing, the epoxy resin end socket becomes shell side and tube side with the doughnut packing, forms the structure of similar shell-and-tube heat exchanger; Described air inlet links to each other with housing one end, and housing links to each other with vavuum pump, and the VOC outlet links to each other with vavuum pump; Described blower fan links to each other with the housing other end, and links to each other with exhaust outlet; VOC in the room air penetrates into the tube side or the shell side of doughnut under the vavuum pump swabbing action, described VOC is discharged through the VOC outlet by vavuum pump.
As preferred version, described doughnut constitutes by two layers, and one deck is the porous supporting layer, and another layer is the dense non-porous cortex, and described dense non-porous cortex is positioned at the doughnut outside or inboard.Doughnut external diameter 1.0-10.0mm, wall thickness 100-200 μ m.
Described porous supporting layer is made by Kynoar, polyetherimide glue, polyacrylonitrile, polypropylene or polysulfones, and its aperture is 0.4-2.0 μ m, and thickness is 100-200 μ m; Described dense layer surface is made by dimethyl silicone polymer or polyether block amide, and its thickness is 0.2-5 μ m, atresia.
Establish a cold-trap between described housing and vavuum pump, housing links to each other with cold-trap, and cold-trap links to each other with vavuum pump; Described cold-trap inside is provided with the cryogen coil pipe; Described VOC is carried out condensation by cold-trap reclaim, uncooled part is discharged to outdoor again.
The present invention adopts the doughnut with selective permeation function to serve as the air cleaning media, because this fiber has only VOCs to see through, under the effect of doughnut external and internal pressure difference, VOCs separates from air, reaches purification.The cortex of described doughnut adopts the material of dense non-porous, it is a kind of special material, as dimethyl silicone polymer (PDMS) and polyether block amide (PEBA), described VOCs at first dissolves in this dense material, is diffused into shell side then, because nearly all VOCs can be dissolved in this dense material, it can realize the wide spectrum removal of VOCs, no matter i.e. pollutant pore size is so long as VOCs can both be removed.
The relative prior art of the present invention has following advantage and effect:
(1) utilize the doughnut with dense layer surface to carry out indoor air purification as the air cleaning media, can realize that air cleaning efficient more than 80%, does not need thermal regeneration, energy consumption is extremely low;
(2) utilize this device to carry out air cleaning, can remove most VOCs in the air, comprise hundreds of indoor common VOCs such as formaldehyde, ethane, acetone, methyl acetic acid, methane-siliconic acid;
(3) adopt the doughnut structure, transmission area is big, mass-transfer efficiency height, equipment compact.
Description of drawings
Fig. 1 is the structure chart of indoor air-purification device of the present invention;
Fig. 2 is a doughnut structural representation among Fig. 1;
Fig. 3 is another structural representation of doughnut among Fig. 1;
Fig. 4 is the another kind of structure chart of indoor air-purification device of the present invention;
Fig. 5 is the embodiment of the invention 5 structure charts;
Fig. 6 is the embodiment of the invention 6 structure charts.
The specific embodiment
Indoor air-purification device of the present invention as shown in Figure 1, this device comprises air inlet 1, housing 2, epoxy resin end socket 3, blower fan 4, exhaust outlet 5, VOCs outlet 6, vavuum pump 7, doughnut 8.Described air inlet 1 links to each other with housing 2 one ends, and housing 2 links to each other with vavuum pump 7, and VOC outlet 6 links to each other with vavuum pump 7; Described blower fan 4 links to each other with housing 2 other ends, and links to each other with exhaust outlet 5; Epoxy resin end socket 3 becomes shell side and tube side with doughnut 8 packings, and sealing, air tight also seals air tight between doughnut 8 and the end socket 3 between end socket 3 and the housing 2; Room air is under the driving of blower fan 4, enter housing 2 by air inlet 1 and flow through in the hollow fiber conduit, the wall that VOCs wherein sees through doughnut enters shell side, and the cleaned air that removes behind the VOCs flows out air outlet 5, loop back indoorly, reach the purpose of air cleaning.The VOCs that infiltrates in the hollow fiber conduit in the shell side then is discharged to outdoor by vavuum pump 7 through VOCs floss holes 6.
The concrete processing step that utilizes this air cleaning unit to carry out air cleaning is: open blower fan 4 and vavuum pump 7, drive new wind and enter housing, in housing under the end socket plugging action, room air is along the doughnut internal flow, VOCs wherein is the wall by doughnut under the effect of doughnut external vacuum, penetrate into housing, under the vavuum pump suction, be discharged to outdoor again through VOCs floss hole 6.
Doughnut concrete structure of the present invention as shown in Figure 2, dense layer surface 9 is positioned at the doughnut outside, porous supporting layer 10 is positioned at the doughnut inboard.As seen from Figure 2, described room air is walked pipe interior 11, the porous supporting layer 10 of described doughnut is the thick porous supporting body of 100-200 μ m, comprise Kynoar (PVDF), polyetherimide glue (PEI), any of polyacrylonitrile (PAN), polypropylene (PP), polysulfones (PSU) etc., its aperture 0.4-2.0 μ m; Described dense layer surface 9 thickness are 0.2-5 μ m, atresia, and its material comprises dimethyl silicone polymer (PDMS), polyether block amide (PEBA) etc. any.
Another structure of doughnut of the present invention as shown in Figure 3, dense layer surface 9 is positioned at the doughnut inboard, porous supporting layer 10 is positioned at the doughnut outside.As seen from Figure 3, described room air is walked pipe interior 11, the porous supporting layer 10 of described doughnut is the thick porous supporting body of 100-200 μ m, comprise Kynoar (PVDF), polyetherimide glue (PEI), any of polyacrylonitrile (PAN), polypropylene (PP), polysulfones (PSU) etc., its aperture 0.4-2.0 μ m; Described dense layer surface 9 thickness are 0.2-5 μ m, atresia, and its material comprises dimethyl silicone polymer (PDMS), polyether block amide (PEBA) etc. any.
Of the present invention another has VOCs and collects the air cleaning unit that reclaims function, as shown in Figure 4, this air cleaning unit comprises air inlet 1, housing 2, epoxy resin end socket 3, blower fan 4, exhaust outlet 5, VOCs outlet 6, vavuum pump 7, doughnut 8, cold-trap 12, and cryogen coil pipe 13 is established in described cold-trap 12 inside; Room air is under the driving of blower fan 4, enter housing 2 by air inlet 1, room air enters tube side in housing, under driving, blower fan 4 flows through in the hollow fiber conduit, the wall that VOCs wherein sees through doughnut enters shell side, the cleaned air that removes behind the VOCs flows out air outlet 5, loops back indoorly, reaches the purpose of air cleaning.Housing 2 links to each other with vavuum pump 7 with cold-trap 12, and the VOCs that infiltrates in the hollow fiber conduit in the shell side flows through cold- trap 12, and 13 cooling effects of cryogen coil pipe issue raw food and coagulate in cold-trap 12, become liquid, collect in cold-trap 12 bottoms, collect and take away after a certain amount of, for recycling; Logical liquid nitrogen, cold-producing medium or cold water in the cryogen coil pipe 13, liquid nitrogen, cold-producing medium or cold water enter from cryogen import 14, flow out from cryogen outlet 15, reach the effect of cooling condensation VOcs.
The concrete processing step that utilizes this air cleaning unit to carry out air cleaning is: open blower fan 4 and vavuum pump 7, drive new wind and enter housing, in housing under the end socket shutoff, room air is along the doughnut internal flow, VOCs wherein is the wall by doughnut under the effect of doughnut external vacuum, penetrate into housing, under the vavuum pump suction, pass through cold-trap 12 again, condensation liquefaction takes place in VOCs wherein, be pooled to cold-trap 12 bottoms, be provided with the back and recycle, and incoagulable VOCs of part and incoagulable gas are discharged to outdoor through floss hole 6.
Another structure chart of air cleaning unit embodiment of the present invention, as shown in Figure 5, room air is walked shell side, and VOCs walks tube side, and isolated VOCs does not reclaim, and directly is discharged to outdoor.As seen from Figure 5, this air cleaning unit comprises air inlet 1, housing 2, epoxy resin end socket 3, blower fan 4, exhaust outlet 5, VOCs outlet 6, vavuum pump 7, doughnut 8; Room air enters housing 2 by air inlet 1 under the driving of blower fan 4, end socket 3 becomes shell side and tube side with the doughnut packing, room air is walked shell side in housing, promptly from the doughnut outside, interbank flowing through, under blower fan 4 drives, flow out air outlet 5, in the inlet chamber.The wall that VOCs in the room air sees through doughnut enters the tube side of doughnut, discharges outdoor through VOCs floss hole 6 under vavuum pump 7 swabbing actions.
The concrete processing step that utilizes this air cleaning unit to carry out air cleaning is: open blower fan 4 and vavuum pump 7, drive new wind and enter housing, in housing under the end socket shutoff, room air flows in doughnut exterior tube interfascicular, the wall by doughnut under the vacuum action in hollow fiber conduit of VOCs wherein, penetrate in the pipe, under the vavuum pump suction, be discharged to outdoor again through VOCs floss hole 6.
Another embodiment of air cleaning unit of the present invention as shown in Figure 6, room air is walked shell side, VOCs walks tube side, the VOCs of discharge reclaims.As seen from Figure 6, this air cleaning unit comprises air inlet 1, housing 2, epoxy resin end socket 3, blower fan 4, exhaust outlet 5, VOCs outlet 6, vavuum pump 7, doughnut 8, cold-trap 12.Wherein cryogen coil pipe 13 is established in cold-trap 12 inside.Room air enters housing 2 by air inlet 1 under the driving of blower fan 4, end socket 3 becomes shell side and tube side with the doughnut packing.Room air is walked shell side in housing, promptly from the doughnut outside, interbank flowing through, under blower fan 4 drives, flow out air outlet 5, in the inlet chamber.VOCs in the room air enters the tube side of doughnut through the wall of doughnut, under vavuum pump 7 swabbing actions, pass through cold-trap 12, the cooling effect of VOCs cryogen coil pipe 13 in cold-trap 12 issues raw food and coagulates, become liquid, collect in cold-trap 12 bottoms, collect and take away after a certain amount of, for recycling.Logical liquid nitrogen, cold-producing medium or cold water in the cryogen coil pipe 13, liquid nitrogen, cold-producing medium or cold water enter from cryogen import 14, flow out from cryogen outlet 15, play cooling condensation VOCs.Uncooled part of V OCs and air are discharged outdoor through floss hole 6.
The concrete processing step that utilizes this air cleaning unit to carry out air cleaning is: open blower fan 4 and vavuum pump 7, drive new wind and enter housing, in housing under the end socket shutoff, room air flows in doughnut exterior tube interfascicular, VOCs wherein in hollow fiber conduit under the vacuum action by the wall of doughnut, penetrate in the pipe, under the vavuum pump suction, pass through cold-trap 12 again, condensation takes place, be pooled to cold-trap 12 bottoms for recycling, uncooled VOCs is discharged to outdoor through floss hole 6.Liquid nitrogen, cold-producing medium or cold water enter from cryogen import 14, flow out from cryogen outlet 15, play cooling condensation VOCs.
Claims (4)
1, a kind of indoor air-purification device is characterized in that, this device comprises air inlet, housing, blower fan, exhaust outlet, vavuum pump and VOC outlet; Be provided with doughnut in the described housing, the epoxy resin end socket becomes shell side and tube side with the doughnut packing, forms the structure of similar shell-and-tube heat exchanger; Described air inlet links to each other with housing one end, and housing links to each other with vavuum pump, and the VOC outlet links to each other with vavuum pump; Described blower fan links to each other with the housing other end, and links to each other with exhaust outlet; VOC in the room air penetrates into the tube side or the shell side of doughnut under the vavuum pump swabbing action, described VOC is discharged through the VOC outlet by vavuum pump.
2, indoor air-purification device according to claim 1 is characterized in that, described doughnut constitutes by two layers, and one deck is the porous supporting layer, and another layer is the dense non-porous cortex, and described dense non-porous cortex is positioned at the doughnut outside or inboard.
3, indoor air-purification device according to claim 2 is characterized in that, described porous supporting layer is made by Kynoar, polyetherimide glue, polyacrylonitrile, polypropylene or polysulfones, and its aperture is 0.4-2.0 μ m, and thickness is 100-200 μ m; Described dense layer surface is made by dimethyl silicone polymer or polyether block amide, and its thickness is 0.2-5 μ m, atresia.
4, indoor air-purification device according to claim 3 is characterized in that, establishes a cold-trap between described housing and vavuum pump, and housing links to each other with cold-trap, and cold-trap links to each other with vavuum pump; Described cold-trap inside is provided with the cryogen coil pipe; Described VOC is carried out condensation by cold-trap to be reclaimed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710028239XA CN100500262C (en) | 2007-05-25 | 2007-05-25 | Indoor air purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200710028239XA CN100500262C (en) | 2007-05-25 | 2007-05-25 | Indoor air purifying device |
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| Publication Number | Publication Date |
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| CN101058052A true CN101058052A (en) | 2007-10-24 |
| CN100500262C CN100500262C (en) | 2009-06-17 |
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| CNB200710028239XA Expired - Fee Related CN100500262C (en) | 2007-05-25 | 2007-05-25 | Indoor air purifying device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362044B (en) * | 2008-09-08 | 2011-01-26 | 江南大学 | Formaldehyde exhaust-gas efficient film absorption technique |
| CN102260931A (en) * | 2010-05-31 | 2011-11-30 | 天津膜科力科技有限公司 | Composite hollow fiber for heat exchanger and preparation method thereof |
| CN104437012A (en) * | 2013-09-18 | 2015-03-25 | 热映光电股份有限公司 | Air filtering device and air filter |
| CN106512636A (en) * | 2016-10-19 | 2017-03-22 | 华南师范大学 | Method for purifying organic exhaust gas |
| CN107349707A (en) * | 2017-07-31 | 2017-11-17 | 贵州大学 | A kind of dedusting and purifying air system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1237475A (en) * | 1998-05-29 | 1999-12-08 | 中国科学院大连化学物理研究所 | Prepartion of composite gas separation membrane its application |
| JP2004232954A (en) * | 2003-01-30 | 2004-08-19 | Kurimoto Ltd | Air cleaner |
| CN2667387Y (en) * | 2003-10-21 | 2004-12-29 | 深州市净化设备器材厂 | Air purifying sterilizer |
| CN201040106Y (en) * | 2007-05-25 | 2008-03-26 | 华南理工大学 | Indoor air cleaning device |
-
2007
- 2007-05-25 CN CNB200710028239XA patent/CN100500262C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101362044B (en) * | 2008-09-08 | 2011-01-26 | 江南大学 | Formaldehyde exhaust-gas efficient film absorption technique |
| CN102260931A (en) * | 2010-05-31 | 2011-11-30 | 天津膜科力科技有限公司 | Composite hollow fiber for heat exchanger and preparation method thereof |
| CN104437012A (en) * | 2013-09-18 | 2015-03-25 | 热映光电股份有限公司 | Air filtering device and air filter |
| CN106512636A (en) * | 2016-10-19 | 2017-03-22 | 华南师范大学 | Method for purifying organic exhaust gas |
| CN107349707A (en) * | 2017-07-31 | 2017-11-17 | 贵州大学 | A kind of dedusting and purifying air system |
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| Publication number | Publication date |
|---|---|
| CN100500262C (en) | 2009-06-17 |
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Granted publication date: 20090617 Termination date: 20120525 |