CN103512101A - Method and device for replacing and purifying indoor air - Google Patents
Method and device for replacing and purifying indoor air Download PDFInfo
- Publication number
- CN103512101A CN103512101A CN201210222956.7A CN201210222956A CN103512101A CN 103512101 A CN103512101 A CN 103512101A CN 201210222956 A CN201210222956 A CN 201210222956A CN 103512101 A CN103512101 A CN 103512101A
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- air
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- room
- sound
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000000746 purification Methods 0.000 claims abstract description 16
- 239000000126 substance Substances 0.000 claims description 30
- 230000000712 assembly Effects 0.000 claims description 15
- 238000000429 assembly Methods 0.000 claims description 15
- 229910001220 stainless steel Inorganic materials 0.000 claims description 15
- 239000010935 stainless steel Substances 0.000 claims description 15
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 12
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 11
- 230000009467 reduction Effects 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 10
- 239000004743 Polypropylene Substances 0.000 claims description 9
- 229910021645 metal ion Inorganic materials 0.000 claims description 9
- -1 polypropylene Polymers 0.000 claims description 9
- 229920001155 polypropylene Polymers 0.000 claims description 9
- 230000000505 pernicious effect Effects 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 239000000758 substrate Substances 0.000 claims description 7
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 6
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 6
- 239000012814 acoustic material Substances 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 229910052801 chlorine Inorganic materials 0.000 claims description 6
- 239000000460 chlorine Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 6
- 238000009413 insulation Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 5
- 229920000742 Cotton Polymers 0.000 claims description 4
- 239000011358 absorbing material Substances 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract 4
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000036541 health Effects 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 238000004887 air purification Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a method for replacing and purifying indoor air and a device for achieving the method. Outdoor air is absorbed into a case through an air inlet pipe and is primarily purified to remove suspended particles in the air; the primarily-purified air is secondarily purified to adsorb harmful gas in the air; then the secondarily-purified air is conveyed to the interior of a room, and original indoor contaminated air is exhausted out of the room through door and window seams or an air exhaust device. The device comprises the case in which a motor, the air inlet pipe, a filtering assembly, an exhaust pipe and a connecting piece are accommodated, wherein the motor is arranged on a motor support, and the motor support is movably connected with a bottom plate of the case; the filtering assembly is arranged in the case; the air inlet pipe is inserted into a hole of the bottom plate of the case and is connected with an inlet of the filtering assembly; one end of the exhaust pipe is connected with an outlet of the filtering assembly, and the other end of the exhaust pipe is connected with an air outlet in the lateral side of the case. Due to the utilization of the method and device, ventilating, purification and air exchanging can be achieved without opening a window, and the phenomenon that because the window is opened, outdoor noise and unclear air enter the room is avoided.
Description
Technical field
The invention belongs to air-conditioning technical field, relate to a kind of method that room air is changed, purified and device.
Background technology
Existing domestic air conditioning method and install varied, in general, mainly take realize temperature, humidity regulation is main target, the deficiency that these methods and device exist is: although the temperature of new delivery air, the demand that humidity can meet people, but because being all substantially carries out circular treatment to indoor intrinsic air, composition of air can not change because of such circular treatment substantially; When indoor people is many, someone smokes or have other air pollution source, it is more and more dirty that room air easily becomes, long-term in such environment learning, life, for health, is very disadvantageous.Innovate a kind of method and device that can make up the above deficiency of existing domestic air conditioning technology and become active demand objectively.
Summary of the invention
The object of the invention is to propose a kind of indoor air-changing the method purifying air and device, make up the deficiency that existing domestic air conditioning technology exists.
The object of the present invention is achieved like this:
Need not window and can realize ventilation, suspension particle in outdoor air and pernicious gas can be filtered, then send into indoor, to guarantee indoor air cleaning and there is no peculiar smell, guarantee indoor nature with fresh air, can not damage because of the pollution of outside atmosphere the health of indoor human body.
A method of changing and purifying the air of a room, sucks cabinet by air inlet pipe by outdoor air, first carries out preliminary purification, removes suspended particulate substance wherein;
Air through preliminary purification is carried out to double purification, absorption pernicious gas wherein;
Subsequently the air of double purification is sent into indoor, indoor original foul atmosphere stitches by door and window or air exhausting device discharge chamber outside.
Further, the suspended particulate substance of removing after preliminary purification in outdoor air reaches more than 60%.
After double purification, remove diameter in outdoor air at more than 0.4 micron suspended particulate substance more than 98%.
Described pernicious gas comprises nitric oxide, nitrogen dioxide, sulfur dioxide, hydrogen sulfide, chlorine.
A device for above-mentioned replacing the method that purifies the air of a room, comprising:
The cabinet that holds motor, air inlet pipe, filter assemblies, blast pipe and connector;
Motor, is arranged on electric machine support, and electric machine support is connected by being actively coupled with the base plate of cabinet;
Filter assemblies is arranged in cabinet; Air inlet pipe is inserted and is connected with the entrance of filter assemblies by the hole of chassis backplane; One end of blast pipe be connected with the outlet of filter assemblies, the other end is connected with the air outlet that is arranged at cabinet side.
Also comprise: power panel, controller board, described power panel is arranged at the top of cabinet, and described controller board is arranged at the top of the lid of cabinet;
Described power panel is connected by fast plug-in unit with described controller board.
In cabinet inner side, be also provided with sound-insulating structure.
Described filter assemblies comprises inferior high efficiency filter, chemical filter and medium effeciency filter, and three part sealing stacks become filter assemblies integral body; Preferably, described chemical filter can adopt: active carbon filter; Chemosorbent filter; The filter of active carbon and chemosorbent use.
Described sound-insulating structure is comprised of acoustic material and sound-absorbing material, preferably, by composite metal ion deadening felt, adding polypropylene Sound-proof material forms, sticky to reach the effect of sound insulation after first sound-absorbing with two-sided gluing between cabinet and composite metal ion deadening felt and polypropylene acoustical cotton, cabinet inner side also arranges stainless steel noise reduction inner bag, in courage, by " Z " type stainless steel substrates and shutter type noise reduction stainless steel substrates, is welded to form;
Further preferred, described composite metal ion deadening felt employing 10mm type; Described polypropylene Sound-proof material adopts 20mm type; Described stainless steel noise reduction inner bag adopts 3mm type.
Between described power panel and controller board, with wire, connect; Or described air outlet is arranged at the top of cabinet; Or air outlet adopts louvered structure; Or along the flow direction of air inlet, described filter assemblies is sequentially arranged and forms by inferior high efficiency filter, chemical filter and medium effeciency filter three parts;
Preferably, adopt " U " type metal framework sealing and fixing to prevent that air from not leaking by filter between described inferior high efficiency filter and chemical filter, between chemical filter and medium effeciency filter, " U " type framework and housing are connected and fixed;
Further preferred, described " U " type metal framework employing 20mm type.
The present invention has following beneficial effect:
Need not window and can realize ventilation;
1, the dust in filtered air, can reach the rank of Industrial cleaning facility chamber;
2, the nitric oxide in can filtered air, nitrogen dioxide, sulfur dioxide, hydrogen sulfide, the gas molecule that chlorine etc. are harmful;
3, avoid windowing that it is indoor to cause outdoor noise to import into, simultaneously owing to having adopted suitable acoustic material, during the machine work, noise is discovered hardly.
Accompanying drawing explanation
Fig. 1 is the partial structurtes cutaway view that apparatus of the present invention are installed on Indoor environment.
Fig. 2 is the composition schematic diagram of the filter core that comprises in apparatus of the present invention shown in Fig. 1 embodiment.
The specific embodiment
Below in conjunction with accompanying drawing illustrated embodiment, the present invention is further illustrated.
Refer to Fig. 1, indoor air-changing of the present invention the device purifying air comprise:
Low efficient filter 9 is housed in the middle of electric machine support 8.
Filter assemblies, as filter core 5, is contained in cabinet middle part.Gas outlet is arranged on the top, side of cabinet 1.
In cabinet inner side, be provided with sound-insulating structure.
Between chassis lid 2 and cabinet, available active connects (as bolt) and is connected.
As a kind of preferred version, described power panel 3 is arranged on the top of cabinet 1, and described controller board 4 is contained in the top of chassis lid 2, and power panel 3 is connected with wire with in the middle of controller board 4.
As further preferred version, described filter core 5 is comprised of inferior high efficiency filter 51, chemical filter 52 and medium effeciency filter 53 from top to bottom.
The method that the present invention changes and purifies the air of a room: indoor air-purification device of the present invention, be arranged on indoor wall, by the air inlet pipe 10 on wall, under the drive of motor 7, outdoor air is sucked to cabinet, the suspended particulate substance (general diameter all can suspend at the particle below 15 microns) that air is first removed in outdoor air after low efficient filter 9 reaches more than 60%, air through preliminary purification carries out secondary filter purification by filter core 5, the diameter of removing in outdoor air reaches more than 98% at more than 0.4 micron suspended particulate substance, and nitric oxide in adsorption chamber outer air, nitrogen dioxide, sulfur dioxide, hydrogen sulfide, chlorine etc. pernicious gas, efficiency is more than 90%, finally pure air is blown into indoor, under indoor positive pressure effect, indoor original foul atmosphere stitches by door and window or air exhausting device etc. is discharged to outdoor, thereby reach the object of taking a breath and purifying air.
The air of preliminary purification first reaches more than 80% through the suspended particulate substance in low efficient filter 9 and medium effeciency filter 53 removal outdoor airs, then through chemical filter 52, remove nitric oxide in outdoor air, nitrogen dioxide, sulfur dioxide, hydrogen sulfide, chlorine etc. pernicious gas, efficiency, more than 90%, reaches more than 98% at more than 0.4 micron suspended particulate substance finally by the diameter of crossing in inferior high efficiency filter 51 removal outdoor airs.
Adopt the present invention to realize when changing and purifying the air of a room and but needn't window, avoided outdoor noise to import into indoor; On the other hand, because the present invention has adopted acoustic material, when the present invention works, self noise is discovered hardly.
By to airborne particle and nitric oxide, nitrogen dioxide, sulfur dioxide, hydrogen sulfide, the harmful gas molecule such as chlorine filters, and integral body can reach the rank of Industrial cleaning facility chamber.
Another embodiment of indoor air-purification device of the present invention, comprise cabinet 1, chassis lid 2, power panel 3, controller board 4, filter core 5 and air outlet 6, chassis lid 2 is positioned at cabinet 1 side and is connected by being actively coupled (as bolt) with cabinet 1, described filter core 5 is positioned at cabinet 1 inside, also comprise motor 7, electric machine support 8, low efficient filter 9 and air inlet pipe 10, motor 7 is arranged on electric machine support 8, electric machine support 8 is connected by being actively coupled (as bolt) with the base plate of cabinet 1, air inlet pipe 10 is inserted in the circular hole of cabinet 1 rear plate, low efficient filter 9 is contained in the middle of electric machine support 8.
As a kind of preferred version, power panel 3 can be contained in the top of cabinet 1, and controller board 4 is contained in the top of chassis lid 2, and power panel 3 is connected with wire with in the middle of controller board 4.
Preferably, filter core 5 is from top to bottom by inferior high efficiency filter 51, chemical filter 52 and medium effeciency filter 53 form, stack and sealing form successively, between inferior high efficiency filter 51 and chemical filter 52, between chemical filter 52 and medium effeciency filter 53, can adopt " U " type metal framework sealing of 20mm and fix, to prevent that air from not leaking by filter, with screw, two groups of " U " type frameworks and housing are fixed again, to prevent long-distance transport, produce loosening, this structure can make inferior high efficiency filter 51, chemical filter 52, medium effeciency filter 53 has maximum area to contact with air, make it bring into play following advantage:
1. windage is low.
2. air quantity is large.
3. filter efficiency is high.
4. change simple and convenient (due to the module forming a whole, can disposable whole taking-ups during replacing, simple and convenient).
5. non-secondary pollution in cabinet while changing (because can disposable whole taking-ups)
Preferably, described air outlet 6 can be arranged at the top of cabinet, and air outlet can be designed to louvered, can reduce noise.
As further preferred version, in cabinet, sound-insulating structure can also be set: in cabinet inner side, increase acoustic material, acoustic material can be composited by sound insulation and sound-absorbing material.For example, can add 20mm polypropylene Sound-proof material by 10mm composite metal ion deadening felt forms, sticky with 3M Environmental protection two-side gluing between cabinet and 10mm composite metal ion deadening felt and 20mm polypropylene acoustical cotton, to reach the effect of sound insulation after first sound-absorbing, cabinet inner side also can arrange 3mm stainless steel noise reduction inner bag, in courage, by " Z " type stainless steel substrates and shutter type noise reduction stainless steel substrates, be welded to form, this structure can be eliminated reflection and the resonance of sound.
Its principle that reduces noise is: " Z " type stainless steel substrates and shutter type stainless steel are welded to form noise reduction steel disc (avoiding sound reflection and acoustic resonance to play sound deadening) → 3mm stainless steel noise reduction inner bag (deadening) → 20mm polypropylene acoustical cotton (sound absorption) → 10mm composite metal ion deadening felt (deadening).By 4 noise reduction, sound-absorbing, sound insulation processes repeatedly, stop greatly and reduced the energy of sound, thereby obtained the effect that reduces noise, be characterized in:
1. sound-insulation successful.
2. take up room little.
3. reduce and prevented the generation (because there is stainless steel inner container, the maintain cleanliness of easily sterilizing, therefore reduce and prevented the generation of bacterium and mould, guarantees nature with fresh air, the health of protection indoor human body) of bacterium and mould.
In order to realize better effect,
The low efficient filter 9 adopting meets European standard EN779 or Chinese Industrial Standards (CIS) GB/T14295;
Inferior high efficiency filter 51 meets or European standard EN779 or Chinese Industrial Standards (CIS) GB/T14295;
Low efficient filter 9 and filter core 5 are used after 1 year replaceable.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.Person skilled in the art obviously can easily make various modifications to these embodiment, and General Principle described herein is applied in other embodiment and needn't passes through performing creative labour.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not departing from the improvement that category of the present invention makes and revise all should be within protection scope of the present invention.
Claims (10)
1. a method of changing and purifying the air of a room, is characterized in that: by air inlet pipe, outdoor air is sucked to cabinet, first carry out preliminary purification, remove suspended particulate substance wherein;
Air through preliminary purification is carried out to double purification, absorption pernicious gas wherein;
Subsequently the air of double purification is sent into indoor, indoor original foul atmosphere stitches by door and window or air exhausting device discharge chamber outside.
2. method according to claim 1, is characterized in that: the suspended particulate substance of removing after preliminary purification in outdoor air reaches more than 60%.
3. method according to claim 1, is characterized in that: after double purification, remove diameter in outdoor air at more than 0.4 micron suspended particulate substance more than 98%.
4. method according to claim 1, is characterized in that: described pernicious gas comprises nitric oxide, nitrogen dioxide, sulfur dioxide, hydrogen sulfide, chlorine.
5. a device for the method that realizes replacing claimed in claim 1 and purify the air of a room, is characterized in that: comprising:
The cabinet that holds motor, air inlet pipe, filter assemblies, blast pipe and connector;
Motor, is arranged on electric machine support, and electric machine support is connected by being actively coupled with the base plate of cabinet;
Filter assemblies is arranged in cabinet; Air inlet pipe is inserted and is connected with the entrance of filter assemblies by the hole of chassis backplane; One end of blast pipe be connected with the outlet of filter assemblies, the other end is connected with the air outlet that is arranged at cabinet side.
6. replacing according to claim 5 the device that purifies the air of a room, is characterized in that: also comprise: power panel, controller board, and described power panel is arranged at the top of cabinet, and described controller board is arranged at the top of the lid of cabinet;
Described power panel is connected by fast plug-in unit with described controller board.
7. replacing according to claim 5 the device that purifies the air of a room, is characterized in that: in cabinet inner side, be also provided with sound-insulating structure.
8. replacing according to claim 5 the device that purifies the air of a room, is characterized in that:
Described filter assemblies comprises inferior high efficiency filter, chemical filter and medium effeciency filter, and three part sealing stacks become filter assemblies integral body; Preferably, described chemical filter adopts the filter of active carbon filter, chemosorbent filter or active carbon and chemosorbent use.
9. replacing according to claim 7 the device that purifies the air of a room, is characterized in that:
Described sound-insulating structure is comprised of acoustic material and sound-absorbing material, preferably, by composite metal ion deadening felt, adding polypropylene Sound-proof material forms, sticky to reach the effect of sound insulation after first sound-absorbing with two-sided gluing between cabinet and composite metal ion deadening felt and polypropylene acoustical cotton, cabinet inner side also arranges stainless steel noise reduction inner bag, in courage, by " Z " type stainless steel substrates and shutter type noise reduction stainless steel substrates, is welded to form;
Further preferred, described composite metal ion deadening felt employing 10mm type; Described polypropylene Sound-proof material adopts 20mm type; Described stainless steel noise reduction inner bag adopts 3mm type.
10. according to the replacing described in claim 5 or 6 device that purifies the air of a room, it is characterized in that:
Between described power panel and controller board, with wire, connect; Or described air outlet is arranged at the top of cabinet; Or air outlet adopts louvered structure; Or along the flow direction of air inlet, described filter assemblies is sequentially arranged and forms by inferior high efficiency filter, chemical filter and medium effeciency filter three parts;
Preferably, adopt " U " type metal framework sealing and fixing to prevent that air from not leaking by filter between described inferior high efficiency filter and chemical filter, between chemical filter and medium effeciency filter, " U " type framework and housing are connected and fixed;
Further preferred, described " U " type metal framework employing 20mm type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210222956.7A CN103512101A (en) | 2012-06-29 | 2012-06-29 | Method and device for replacing and purifying indoor air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210222956.7A CN103512101A (en) | 2012-06-29 | 2012-06-29 | Method and device for replacing and purifying indoor air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103512101A true CN103512101A (en) | 2014-01-15 |
Family
ID=49895241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210222956.7A Pending CN103512101A (en) | 2012-06-29 | 2012-06-29 | Method and device for replacing and purifying indoor air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103512101A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791936A (en) * | 2015-04-26 | 2015-07-22 | 罗鸿章 | Indoor air exchange device used for exhausting indoor air and filtering outdoor inlet air and dust haze |
| CN110478989A (en) * | 2019-09-03 | 2019-11-22 | 苏州爱力想电子科技有限公司 | Mobile abdomen cleans the air exchange system for changing liquid room thoroughly |
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| CN2632361Y (en) * | 2003-08-06 | 2004-08-11 | 王茂林 | Fan of health building |
| JP2006132842A (en) * | 2004-11-05 | 2006-05-25 | Max Co Ltd | Ventilator, ventilating system, and house structure |
| CN201192610Y (en) * | 2008-04-24 | 2009-02-11 | 张晓军 | Fresh air cleaning machine |
| CN201558623U (en) * | 2009-05-18 | 2010-08-25 | 北京埃森恒业科技有限公司 | Combined type filtering device |
| CN202038253U (en) * | 2010-11-08 | 2011-11-16 | 浙江吉利汽车研究院有限公司 | Automobile front wall sound-isolation pad |
| CN202183682U (en) * | 2011-08-10 | 2012-04-04 | 南阳防爆集团股份有限公司 | Sound-proofing shield used for noise reduction of motor |
-
2012
- 2012-06-29 CN CN201210222956.7A patent/CN103512101A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2632361Y (en) * | 2003-08-06 | 2004-08-11 | 王茂林 | Fan of health building |
| JP2006132842A (en) * | 2004-11-05 | 2006-05-25 | Max Co Ltd | Ventilator, ventilating system, and house structure |
| CN201192610Y (en) * | 2008-04-24 | 2009-02-11 | 张晓军 | Fresh air cleaning machine |
| CN201558623U (en) * | 2009-05-18 | 2010-08-25 | 北京埃森恒业科技有限公司 | Combined type filtering device |
| CN202038253U (en) * | 2010-11-08 | 2011-11-16 | 浙江吉利汽车研究院有限公司 | Automobile front wall sound-isolation pad |
| CN202183682U (en) * | 2011-08-10 | 2012-04-04 | 南阳防爆集团股份有限公司 | Sound-proofing shield used for noise reduction of motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791936A (en) * | 2015-04-26 | 2015-07-22 | 罗鸿章 | Indoor air exchange device used for exhausting indoor air and filtering outdoor inlet air and dust haze |
| CN110478989A (en) * | 2019-09-03 | 2019-11-22 | 苏州爱力想电子科技有限公司 | Mobile abdomen cleans the air exchange system for changing liquid room thoroughly |
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Application publication date: 20140115 |
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