CN204006370U - A kind of new and effective indoor air auto-purifying device - Google Patents
A kind of new and effective indoor air auto-purifying device Download PDFInfo
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- CN204006370U CN204006370U CN201420322381.0U CN201420322381U CN204006370U CN 204006370 U CN204006370 U CN 204006370U CN 201420322381 U CN201420322381 U CN 201420322381U CN 204006370 U CN204006370 U CN 204006370U
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Abstract
The utility model discloses a kind of new and effective indoor air auto-purifying device, belong to environmental protection air purifying process field.This indoor air-purification device specifically comprises casing, circuit board, air guide device taking blower fan as power source, air deduster, negative ion generating device, ultraviolet sterilization apparatus, photocatalytic oxidation device, guidance panel, Digiplex, it collects anion technology, ultraviolet disinfection technology, photocatalysis oxidation technique, silver ion sterilization technology and filtration adsorption technology are in one, effectively solve existing air cleaning facility at sterilization, remove suspended particulate, volatile harmful gas, peculiar smell and ozone and other pernicious gas aspect function singleness or removal effect are not good enough, energy consumption is large, produce secondary pollution, the shortcoming such as the high and environmental-protecting performance of cost is poor.The utility model aims to provide that a kind of air purifying and sterilizing effect is comprehensive, simple in structure, efficiency is high, energy consumption is low, noise is little, maintenance cost is economized, the permanent new and effective indoor air auto-purifying device of working life, can be applied to the various indoor environments such as medical treatment, enterprises and institutions, public place, storehouse, workshop and family.
Description
Technical field
The utility model relates to a kind of new and effective indoor air auto-purifying device, belongs to environmental protection air purifying process field.
Background technology
The natural environment that the fast development of industry is depended on for existence to people has to a certain extent caused negative effect, and people's normal outdoor activities have not only been disturbed in the pollution of environment, and have increased the infection rate of the relevant diseases such as respiratory tract.Instantly air pollution has become people's the focus of attention, and the improvement that therefore how prior art is applied to indoor air environment quality becomes the important research topic of scientific and technological circle day by day.Indoor air pollutants mainly comprises that four large classes are airborne microorganism and virus, total volatile organism (TVOC, as formaldehyde, benzene etc.), suspended particulate substance, peculiar smell and ozone etc.In recent years, along with scientific and technical development, some new air purification methods gradate as product and put goods on the market, such as filtering absorption, electronics electrostatic depuration, biological cleaning, ozonization, disinfection by ultraviolet light, photochemical catalytic oxidation, condensation and plasma technique etc.Make a general survey of this series products, mostly exist the problems such as purification is single or thorough, life of product is short, energy consumption is large, noise is large, meeting generation secondary pollution, inadequate environmental protection.
In the prior art field relevant to the utility model, there is " a kind of indoor air cleaner " (application number: 201020125372.4), a kind of purifier is disclosed, it comprises the body with air inlet and air outlet, be arranged at the blower fan between body air inlet and air outlet, air inlet ecto-entad is disposed with style grid, prefiltering net, middle high efficiency particulate air and effectively composite Nano photochemical catalytic oxidation assembly, air outlet is disposed with anion generator and air outlet grate from inside to outside, because it only offers an air inlet and an air outlet, and just effect and middle high efficiency particulate air are prepended to the air inlet of blower fan front side, therefore in the time that rotation speed of fan is larger, air outlet wind speed also can be larger, the time of the residence time that causes air in casing and microorganism being accepted to UV-irradiation and photochemical catalytic oxidation shortens greatly, reduce to a certain extent clean-up effect, in addition, anion generator is placed in to gas outlet as a kind of end processing mode, its intermediate by-products because of electrion generation, as CO etc. can not oxidizedly directly enter room air, causes secondary pollution.
Utility model content
The purpose of this utility model is to provide a kind of new and effective indoor air auto-purifying device, made up the various defects that prior art exists, this new and effective indoor air auto-purifying device can effectively be eliminated airborne microorganism and virus, the various volatile organic matters of oxidation Decomposition, remove peculiar smell and absorption suspended particulate.
For realizing the above object, the utility model is by the following technical solutions: a kind of new and effective indoor air auto-purifying device, it is characterized in that comprising casing, circuit board, air guide device taking blower fan as power source, air deduster, negative ion generating device, ultraviolet sterilization apparatus, photocatalytic oxidation device, guidance panel, Digiplex, it collects anion technology, ultraviolet disinfection technology, photocatalysis oxidation technique, silver ion sterilization technology and filtration adsorption technology are in one, effectively solve existing air cleaning facility at sterilization, remove suspended particulate, volatile harmful gas, peculiar smell and ozone and other pernicious gas aspect function singleness or removal effect are not good enough, energy consumption is large, produce secondary pollution, the shortcoming such as the high and environmental-protecting performance of cost is poor.
This efficient indoor air automatic purification device is realized sterilizing and the purification function of room air, can be applied to air quality to have the various indoor scenarios of requirement, its operation principle is summarized as follows: blower fan high speed rotating in " airtight " space produces negative pressure, air enters " airtight " space through air inlet, realize the pre-filtering of air in the primary efficient filter screen of air inlet setting, large-scale suspended particulate is tackled in outside; The air that enters " airtight " space is realized sterilization first under specific wavelength ultraviolet irradiation, and carbon fiber brush end is connected with negative direct current high voltage simultaneously, and air ionization is produced to a large amount of anions; The air that is mixed with anion is realized and is again sterilized and purify through photocatalyst surface, and the hydroxyl radical free radical of its surface attachment and active oxygen are oxidized organic matter and part inorganic matter, are decomposed into carbon dioxide and water; Finally, air is realized the purification of adsorption filtration again through the middle efficient integrated composite filter net of silver ion screen pack, activated charcoal strainer and HEPA & ULPA screen pack composition.So, just entered indoor environment with the pure air of a large amount of anions.
Described casing comprises shrouding, liner plate, upper cover plate, upper cover plate holder bar, display screen operation panel, base plate and roller, liner plate is arranged at casing front and back, below all offers air grid as air inlet, and top all offers air grid as air gas outlet; Shrouding is arranged at casing left and right sides, and bottom all offers air grid as air inlet; Roller is connected in base plate, on base plate plate face, also offers air intake grid; Holder bar is connected in liner plate top, and it can be realized and fastening with upper cover plate, and upper cover plate plate face offers uniform lattice using as gas outlet; Display screen operation panel is fixed on device front side, handled easily personnel's use; Casing feature is: after the each parts of casing connect, form one " sealing " space, effectively prevented the injury that ultraviolet ray leaks human body is caused; The negative pressure space of blower fan below all offers air intake grid in surrounding and bottom, has increased incoming air area; All air intake grids are all pasted with primary filter net, have reduced air intake resistance; The grid quantity of giving vent to anger is less than air intake grid, has increased and wind resistance, has extended the time of staying of air in " sealing " space, has improved bactericidal purifying effect and air-out speed; Shrouding and cover plate are quick detachable, have facilitated the replacing of device internal component.
Described circuit board is fixed on base plate by copper post and bolt, include EMC wave filter, rectification circuit, filter circuit, impulse generator, pulse transformer, input 220V alternating current, can be respectively carbon fiber brush end provides negative direct current high voltage and provides operating voltage for rectifier, quartz burner and blower fan.
The described air guide device taking blower fan as power source, guiding device is positioned at the below of ultraviolet ray and photochemical catalytic oxidation unit, formed by blower fan, fan shroud and blower bracket, blower fan is consolidated on base plate after being connected with its bearing, and before and after fan shroud is embedded in, liner plate is also divided into two " sealing " space centered by blower fan; Blower fan high speed rotating and produce negative pressure, impels air to enter " sealing " space by air inlet, then has gas outlet to discharge.
Described air deduster comprises primary efficient filter screen, middle efficient integrated composite filter net, primary efficient filter screen employing initial resistance is little, dust containing capacity is large, whippy primarily efficient filter wool, it has good filter effect to suspended particulates more than 5 μ m, and primary efficient filter screen is pasted on each air inlet; Middle high efficiency composition screen pack adopts the integral type composite filter net being made up of silver ion screen pack, activated charcoal strainer and HEPA & ULPA screen pack, it not only can bring into play good sterilizing antibacterial effect, and suspended particulate more than 0.1 μ m is had to good filter effect, between " sealing " space and gas outlet, be front side, rear side and top respectively arrange one independently in efficient integrated composite filter net; Just effect and middle efficient integrated screen pack all can be replaced easily.Because above-mentioned middle efficient integrated composite filter net has certain service life, not reusable edible, Given this, this device also can adopt electret capacitance Electrostatic Absorption screen pack, is not reducing under the prerequisite of efficiency of dust collection, has met the requirement of the economic feature of environmental protection.
Described negative ion generating device comprises the built-in rectification increasing apparatus of circuit board, wire, carbon fiber brush, hairbrush support and supports transverse slat, hairbrush bottom bracket, hairbrush support and support transverse slat are fixed on space, top " sealing ", it is 10 to 80mm narrow iron plate that the upper and lower symmetry of hairbrush support, every side are provided with 2 to 5 rows arranged side by side, spacing, each narrow iron plate comprises two ends, each end is equipped with chamfering and through hole, chamfering is convenient to the insertion of carbon fiber brush, and through hole is convenient to the locking of carbon fiber brush; Hairbrush bottom bracket is arranged on the base plate in space, bottom " sealing ", and it has two ends, each end carbon fiber brush being connected with wire that is connected; When work, casing is as negative electrode, and circuit board improves negative high voltage to it, and produces high corona and sustained release high-concentration anion by carbon fiber brush is most advanced and sophisticated.
Described ultraviolet sterilization apparatus comprises rectifier, quartz burner, and rectifier is fixed on the outside of hairbrush stent support transverse slat, and a rectifier can be that two tubes are powered simultaneously simultaneously; Quartz burner adopts two, respectively arrange one at the upper and lower sides of middle transverse slat, it is the quartz ozone free type processed hot cathode glow discharge low pressure mercury lamp of 254nm that quartz burner is selected wavelength, quartz material fluorescent tube has good ultraviolet (uv) transmission and heat insulating ability, the DNA of microorganism and nucleoprotein have good assimilation effect to 254nm length ultraviolet line, cause it because chain fracture is lethal or lose fertility; Sterilization rate depends on bacterial classification, wavelength and exposure dose, two tubes can provide to this device " sealing " space the illumination of sufficient intensity, the middle efficient integrated composite filter net that each gas outlet arranges increased windage, extended air in the residence time in " sealing " space when having reduced air flow property, ensured that microorganism can accept the ultraviolet light irradiation of sufficient dosage.
Described photocatalytic oxidation device comprises photocatalyst, interior lining panel and fixed head, photocatalyst adopts the aluminium sash screen pack of nano titanium oxide face coat or sintering, interior lining panel is connected and fixes with liner plate before and after casing with fixed head, the two is in both sides and space, formation interval, top, partition type photocatalyst is embedded in this space, the inner side of interior lining panel is " sealing " space, and the outside of interior lining panel is respectively arranged with three middle efficient integrated composite filter nets; In casing, the ultraviolet lamp of shrouding one side setting can expose to and be arranged at before and after casing " sealing " space and on the photocatalyst surface on top, it excites generation hole-duplet because absorbing luminous energy, photo-generated carrier migrates to surface and activates being adsorbed in surperficial oxygen and hydrone, produce active oxygen and active free hydroxy, because it has strong oxidizing property, can produce chain reaction and be degraded to free of contamination carbon dioxide and water in surperficial organic matter and part inorganic matter by catalytic adsorption; Similarly, the middle efficient integrated composite filter net that each gas outlet arranges has extended the time of pollutant generation catalytic oxidation when having increased windage, improved clean-up effect.
Described guidance panel is arranged at casing surface, and it has good human-computer interaction interface, can realize easily the switch control that on off control, quartz burner and the anion of switch control, the blower fan of power supply occur; Guidance panel inside is also provided with wireless remote control receiving device, can realize above-mentioned associative operation by Digiplex easily.
Our company entrusts microbiological analysis inspection center of Guangdong Province to carry out purifying property test to this product, result show its to the purification efficiency of PM2.5 suspended particulate, formaldehyde and TVOC general volatile pernicious gas respectively up to 99.70%, 99.4% and 99.2%, to the virus killing clean-up effect of microorganism, taking staphylococcus albus as tested object, in 2h, purification efficiency is higher than 99.90%; Built-in negative ion generating device, ultraviolet ray sterilizing device and the catalytic oxidizing equipment of clarifier all can produce drop ozone in the time of its function of performance, certain density ozone contributes to air cleaning harmful, and the ozone concentration test result producing when this device busy is 0.002mg/m
3, be 0.12mg/m far below the ozone concentration of regulation in China's air quality standard (GB3095-1996)
3primary standard, above-mentioned performance indications show, this kind of product that my company produces at sterilizing, remove superior performance aspect TVOC, suspended particulate, peculiar smell and ozone.
Brief description of the drawings
Accompanying drawing 1 is the front view of a kind of new and effective indoor air auto-purifying device of the utility model.This figure is simultaneously also as Figure of abstract.
Accompanying drawing 2 is axis side views such as grade of a kind of new and effective indoor air auto-purifying device of the utility model.
Accompanying drawing 3 is structural representations within a kind of new and effective indoor air auto-purifying device of the utility model.
Accompanying drawing 4 is carbon fiber brush support schematic diagrames of a kind of new and effective indoor air auto-purifying device of the utility model.
In accompanying drawing 1,2, the 1st, upper cover plate, the 2nd, upper cover plate holder bar, the 3rd, display screen guidance panel, the 4th, right side shrouding, the 5th, left side shrouding, the 6th, front liner plate.In accompanying drawing 3,4, the 7th, rear lining plate, the 8th, base plate, the 9th, roller, the 10th, circuit board, the 11st, hairbrush bottom bracket, the 12nd, ultraviolet lamp pipe holder, the 13rd, ultraviolet lamp, the 14th, hairbrush support transverse slat, the 15th, hairbrush support, the 16th, middle efficient integrated composite filter net, the 17th, photocatalyst interior lining panel, the 18th, photocatalyst, the 19th, photocatalyst fixed head, the 20th, blower fan cover plate, the 21st, blower fan, the 22nd, blower bracket, the 23rd, carbon fiber brush.
Detailed description of the invention
Referring to figs. 1 through Fig. 4, the utility model is a kind of new and effective indoor air auto-purifying device, comprises casing, circuit board 10, air guide device, air deduster, negative ion generating device, ultraviolet sterilization apparatus, photocatalytic oxidation device, silver ion bactericidal unit, guidance panel 3 and Digiplex taking blower fan as power source.
Described casing comprises upper cover plate 1, upper cover plate holder bar 2, display screen operation panel 3, right side shrouding 4, left side shrouding 5, front liner plate 6, rear lining plate 7, base plate 8 and roller 9, and shrouding 3 and 4 is in casing left and right sides, and bottom all offers grid as air inlet; Liner plate 6 and 7 is arranged at casing front and back, and its below all offers grid as air inlet, and top all offers air grid as air gas outlet; Roller 9 is connected in base plate 8, on base plate 8 plate faces, also offers air intake grid; Holder bar 2 is connected in liner plate 6 and 7 tops, and it can be realized and fastening with upper cover plate 1, and upper cover plate 1 plate face offers uniform lattice using as gas outlet; Display screen operation panel 3 is fixed on device front side, handled easily personnel's use.
Described circuit board 10 is fixed on base plate 8 by copper post and bolt, include EMC wave filter, rectification circuit, filter circuit, impulse generator, pulse transformer, input 220V alternating current, can be respectively carbon fiber brush 23 provides negative direct current high voltage and provides operating voltage for quartz burner 13, rectifier and blower fan.
The described air guide device taking blower fan as power source, guiding device is positioned at the below of ultraviolet ray and photochemical catalytic oxidation unit, formed by fan shroud 20, blower fan 21 and blower bracket 22, blower fan 21 is consolidated on base plate 8 after being connected with its bearing 22, before and after fan shroud 20 is embedded in, liner plate 6 and 7 is also divided into two " sealing " space centered by fan shroud 20, the two is connected by sleeve, is provided with blower fan 21 in sleeve; Blower fan 21 high speed rotating and produce negative pressure, impel air to enter " sealing " space by air inlet, then discharge through gas outlet.
Described air deduster comprises primary efficient filter screen, middle efficient integrated composite filter net 16, and primary efficient filter screen employing initial resistance is little, dust containing capacity is large, whippy primarily efficient filter wool, and primary efficient filter screen is pasted on each air inlet; Middle efficient integrated composite filter net 16 adopts the integral type composite filter net being made up of silver ion sterilising filtration net, activated charcoal strainer and HEPA & ULPA screen pack, between " sealing " space and gas outlet, be front side, rear side and top respectively arrange one independently in efficient integrated composite filter net; Just effect and middle efficient integrated screen pack 16 all can be replaced easily.Because above-mentioned middle efficient integrated composite filter net 16 has certain service life, not reusable edible, Given this, this device also can adopt electret capacitance electrostatic precipitation screen pack, is not reducing under the prerequisite of efficiency of dust collection, has met the requirement of the economic feature of environmental protection.
Described negative ion generating device comprises the built-in rectification increasing apparatus of circuit board 10, wire, carbon fiber brush 23, hairbrush support 15 and supports transverse slat 14, hairbrush bottom bracket 11, hairbrush support 15 and support transverse slat 14 are fixed on space, top " sealing ", hairbrush support Shang Xia 15 symmetry, every side to be provided with 2 to 5 rows arranged side by side, spacing be 10 to 80mm narrow iron plate, each narrow iron plate comprises two ends, each end is equipped with chamfering and through hole, chamfering is convenient to the insertion of carbon fiber brush 23, and through hole is convenient to the locking of carbon fiber brush 23; Hairbrush bottom bracket 11 is arranged on the base plate in space, bottom " sealing ", and it has two ends, each end carbon fiber brush being connected with wire 23 that is connected; When work, casing is as negative electrode, and circuit board improves negative high voltage to it, and produces high corona and sustained release high-concentration anion by carbon fiber brush is most advanced and sophisticated.
Described ultraviolet sterilization apparatus comprises rectifier, quartz burner 13, and rectifier is fixed on the outside of hairbrush stent support transverse slat 14, and a rectifier can be that two tubes are powered simultaneously simultaneously; Quartz burner 13 adopts two, respectively arranges one at the upper and lower sides of middle transverse slat 14.
Described photocatalytic oxidation device comprises interior lining panel 17, photocatalyst 18 and fixed head 19, photocatalyst 18 adopts the aluminium sash screen pack of nano titanium oxide face coat or sintering, interior lining panel 17 is connected with 7 and fixes with liner plate 6 before and after casing with fixed head 19, the two is in both sides and space, formation interval, top, partition type photocatalyst 18 is embedded in this space, the inner side of interior lining panel 17 is " sealing " space, and the outside of fixed head 19 is respectively arranged with three middle efficient integrated composite filter nets 16; In casing the ultraviolet lamp 13 of shrouding one side setting can expose to be arranged at before and after casing " sealing " space and photocatalyst 18 surfaces on top upper, the degraded that produces oxidation reaction and realize organic matter and part inorganic matter because of catalysis.
Described guidance panel 3 is arranged at casing surface, and it has good human-computer interaction interface, can realize easily the switch control that on off control, quartz burner 13 and the anion of switch control, the blower fan of power supply occur; Guidance panel 3 inside are also provided with wireless remote control receiving device, can realize above-mentioned associative operation by Digiplex easily.
Claims (10)
1. a new and effective indoor air auto-purifying device, it is characterized in that comprising casing, air guide device taking blower fan as power source, air deduster, negative ion generating device, ultraviolet sterilization apparatus, photocatalytic oxidation device, guidance panel and wireless remote controller, it collects anion technology, ultraviolet disinfection technology, photocatalysis oxidation technique and filtration adsorption technology are in one, air is realized by pre-filtering, anion fine-purification, ultraviolet sterilization, five layers of filtration environment that photocatalyst catalytic oxidation and composite web are filtered, thereby reach the object effectively purifying air.
2. the new and effective indoor air auto-purifying device of one according to claim 1, is characterized in that casing is made up of left and right shrouding, front and back liner plate, holder bar, upper cover plate, base plate and roller, assembles said elements just to form one " sealing " space.
3. the new and effective indoor air auto-purifying device of one according to claim 2, it is characterized in that the upper and lower relevant position that shrouding bottom offers air intake grid and liner plate all offers air-out grid and air intake grid, the surface of base plate and upper cover plate also offers respectively air intake grid and air-out grid, so " sealing " space has front, rear, left and right and bottom has four air intake channels, and forward and backward and three, top air outlet, and air intake grid surface area is slightly larger than air-out grid surface area.
4. the new and effective indoor air auto-purifying device of one according to claim 2, is characterized in that each air intake grid is all pasted with primary efficient filter screen to realize pre-filtering, and primary efficient filter screen adopts primarily efficient filter wool; The inner side of each air-out grid is provided with middle high efficiency composition screen pack, and it adopts the integral type composite filter net being made up of silver ion screen pack, activated charcoal strainer and HEPA & ULPA high efficiency particulate air.
5. the new and effective indoor air auto-purifying device of one according to claim 4, it is characterized in that high efficiency particulate air is also customizable as high efficiency filter material in electret capacitance electrostatic precipitation screen pack and other environment-friendly type can be recycled, and primary efficient filter screen and middle high efficiency particulate air all can be replaced easily.
6. the new and effective indoor air auto-purifying device of one according to claim 1, it is characterized in that the air guide device taking blower fan as power source can select centrifugal fan, axial fan and mixed flow fan, blower fan is fixed on bearing, and bearing is connected on base plate; Fan shroud is divided into two " sealing " space, and intermediate sleeve will be communicated with up and down, and blower fan is positioned at sleeve.
7. the new and effective indoor air auto-purifying device of one according to claim 1, it is characterized in that negative ion generating device adopts the circuit board that includes rectification increasing apparatus that negative direct current high voltage is provided, the lower bracket in " sealing " space is provided with two carbon fiber brush, it is 10 to 80mm narrow iron plate that the upper and lower symmetry of hairbrush support on top, every side are provided with 2 to 5 rows arranged side by side, spacing, each narrow iron plate comprises two ends, each end is equipped with chamfering and through hole, chamfering is convenient to the insertion of carbon fiber brush, and through hole is convenient to the locking of carbon fiber brush; When work, casing is negative pole, realizes high corona produce high-concentration anion by carbon fiber brush tip.
8. the new and effective indoor air auto-purifying device of one according to claim 1, it is characterized in that ultraviolet sterilization apparatus adopts a rectifier simultaneously to two quartz burner power supplies, quartz burner is arranged in " sealing " space near shrouding side, centered by middle transverse slat, be arranged symmetrically with, the quartz ozone free type processed hot cathode glow discharge low pressure mercury lamp that the wavelength that quartz burner selects microorganism DNA and nucleoprotein easily to absorb is 254nm, ultraviolet can radiation whole " sealing " space.
9. the new and effective indoor air auto-purifying device of one according to claim 1, it is characterized in that fixed head, photocatalyst filtering net and interior lining panel in photocatalytic oxidation device are arranged on the outgassing direction of top, " sealing " space successively, three partition type photocatalyst filtering nets are embedded in the space between interior lining panel and fixed head successively, and photocatalyst filtering net is selected Nano titanium dioxide material uniform fold in the extraordinary activated carbon surface of micron order the honeycomb fashion paper substrate photocatalyst airstrainer that is mixed and processed with long fibered pulp.
10. the new and effective indoor air auto-purifying device of one according to claim 1, it is characterized in that guidance panel is arranged at casing surface, it has good human-computer interaction interface, can realize easily the control to power supply, anion and ultraviolet lamp switch together with wireless remote controller.
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| CN104006458A (en) * | 2014-06-17 | 2014-08-27 | 深圳中元宏康科技有限公司 | Novel efficient automatic indoor air purification device |
| CN104984600A (en) * | 2015-06-18 | 2015-10-21 | 宁波高新区卓尔化工科技有限公司 | Multi-layer composite filtering net for HEPA filter |
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| CN104006458A (en) * | 2014-06-17 | 2014-08-27 | 深圳中元宏康科技有限公司 | Novel efficient automatic indoor air purification device |
| CN104006458B (en) * | 2014-06-17 | 2016-08-31 | 深圳橙果医疗科技有限公司 | A kind of new and effective indoor air auto-purifying device |
| CN104984600A (en) * | 2015-06-18 | 2015-10-21 | 宁波高新区卓尔化工科技有限公司 | Multi-layer composite filtering net for HEPA filter |
| CN108700314A (en) * | 2015-10-14 | 2018-10-23 | 真毅环境科技有限公司 | Air purification method and device |
| CN105363344A (en) * | 2015-11-14 | 2016-03-02 | 华玉叶 | Method for purifying indoor air by domestic radiator |
| CN105597523A (en) * | 2015-11-14 | 2016-05-25 | 华玉叶 | Household coal stove flue gas purification method |
| CN105251290A (en) * | 2015-11-14 | 2016-01-20 | 华玉叶 | Method for purifying indoor air by means of domestic heating radiator |
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| CN105457412A (en) * | 2015-11-14 | 2016-04-06 | 华玉叶 | Household stove flue gas purification method |
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