CN106669314A - Air filtration filter element and filter device - Google Patents
Air filtration filter element and filter device Download PDFInfo
- Publication number
- CN106669314A CN106669314A CN201710059193.1A CN201710059193A CN106669314A CN 106669314 A CN106669314 A CN 106669314A CN 201710059193 A CN201710059193 A CN 201710059193A CN 106669314 A CN106669314 A CN 106669314A
- Authority
- CN
- China
- Prior art keywords
- filter
- chimney
- air
- filter element
- filter core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/58—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Geometry (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to the technical field of air filtration technologies, and particularly relates to an air filtration filter element and a filter device. The air filtration filter element comprises a plurality of filter pipes which are arranged in parallel, wherein an opening part is arranged at one end of each filter pipe, and a sealing part is arranged at the other end; a plurality of mesh structures are arranged on the outer peripheral surface of each filter pipe; and each mesh structure communicates with a hollow cavity in the corresponding filter pipe. The air filtration filter element has the beneficial effects that the available filter screen area of a unit cross-sectional area is relatively large, so that the filter speed is improved. Meanwhile, the available filter screen area is relatively large, so that the contamination speed of the filter element can be reduced, and the frequency of changing the filter element is reduced. Finally, a flaky filter element can be manufactured and can be used for a flaky air filter.
Description
Technical field
The present invention relates to air filtration technical field, more particularly, to a kind of Air Filter Filter Core and filter plant.
Background technology
Current air filter unit is mainly used in car engine air admittance filtration, domestic air purification equipment, dustless car
Between etc..According to ultimate principle, air filtration can substantially be divided into following several types.The first principle is by filter by air
Net, such as micropore filter paper, HEPA filter membranes etc., air by when particulate matter be trapped because size is larger.Second is by applying
Plus electrostatic field so that the pollution particle charge in air, then it is adsorbed onto on wire netting in the presence of electrostatic force.The third is
The surface of moistening is blowed air over, particulate matter and deleterious molecular is adsorbed with water.4th kind is by activated carbon etc. by air
Grain thing, activated carbon can adsorb some particulate matters and deleterious molecular.This several ways has certain pluses and minuses, such as electrostatic is removed
Dirt can produce harmful substance ozone.Therefore air filter unit often uses multiple filter elements.Present invention is generally directed to the first species
The air filtration mode of type is improved.
In first type, the size of filter screen mesh determines that great particulate matter can be filtered.Mesh is less to be meaned
Less particulate matter can be filtered.However, less mesh often means that air circulation resistance is bigger.In order to solve this
Problem, mode main at present is repeatedly to fold up filter screen, then allows air to pass through the filter screen for folding.This method increases
Certain screen area, reduces to a certain extent air circulation resistance, but reduction degree is limited.Because if crossing
In increase folding times, or the thickness for excessively increasing filter screen after folding, then air meeting at the folding gap by filter screen
It is hindered, will be difficult to play a role away from the filter screen of inlet end.This method, can only limitedly improve unit cross-sectional area
The rate of filtration.
And, folding filter screen causes air filter unit to be made thin thin, have impact on market application.Such as, family
Fried batter in a thin layer shape with air purifier, can form it is graceful, save space, ultra-thin Household Air Purifier has preferable market
Effect.But folding filter screen cannot be made it is very thin.
The content of the invention
It is an object of the invention to provide a kind of Air Filter Filter Core and filter plant, to solve prior art in exist
Technical problem.
To solve above-mentioned technical problem, the present invention provides a kind of Air Filter Filter Core, and it includes many filters arranged in parallel
Pipe,
One end of the chimney filter has peristome, and the other end has sealing；
Multiple eyed structures are provided with the outer peripheral face of the chimney filter, each eyed structure with the chimney filter inside in
Cavity body is connected.
Further, the tube that the chimney filter is rolled into by the filter screen with eyed structure.
Further, the quantity of the filter screen is one layer or multilamellar.
Further, many chimney filters surround one in laminar filter element.
Further, the Air Filter Filter Core also includes：First metallic plate and the second metallic plate, on first metallic plate
Multiple through holes are provided with, installed in the peristome of the chimney filter, second metallic plate is corresponding to be installed on institute to correspondence in each through hole
State on the sealing of chimney filter.
Further, many chimney filters are arranged in two rows, and often row is 6 chimney filters.
Further, the chimney filter is a diameter of 2 millimeters.
Further, many chimney filters surround a cylindrical filter element.
Further, the filter screen is HEPA filter screens.
To solve above-mentioned technical problem, the present invention provides also a kind of filter plant, including housing and described air filtration
Filter element, the Air Filter Filter Core is fixed in the housing.
Using above-mentioned technical proposal, the present invention has the advantages that：
A kind of Air Filter Filter Core that the present invention is provided, it includes many chimney filters arranged in parallel, wherein, one end of chimney filter
With peristome, the other end has sealing；Multiple eyed structures are provided with the outer peripheral face of chimney filter, each eyed structure with
Hollow cavity inside chimney filter is connected.Compared with prior art, the invention has the beneficial effects as follows unit cross-sectional area it is available
Screen area is larger, therefore lifts the rate of filtration.Simultaneously because can be larger with screen area, the dirty speed of filter element can be reduced
Degree, reduces the frequency for changing filter element.The last present invention can make a kind of laminar filter element, can be used for laminar air
In filter.
Description of the drawings
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art, below will be to concrete
The accompanying drawing to be used needed for embodiment or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, can be with according to these other accompanying drawings of accompanying drawings acquisition.
Fig. 1 is the structural representation of the single chimney filter that the embodiment of the present invention one is provided；
Fig. 2 is the air-suction state schematic diagram of the single chimney filter shown in Fig. 1；
Fig. 3 is the structural representation of the laminar filter element that the embodiment of the present invention two is provided；
Fig. 4 is the structural representation of the cylindrical filter element that the embodiment of the present invention three is provided.
Reference：
1- sealings；2- chimney filters；3- peristomes.
Specific embodiment
Technical scheme is clearly and completely described below in conjunction with accompanying drawing, it is clear that described enforcement
Example is a part of embodiment of the invention, rather than the embodiment of whole.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outward " be based on orientation shown in the drawings or position relationship, merely to
Be easy to description the present invention and simplify description, rather than indicate or imply indication device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Company ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or be integrally connected；Can
Being to be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Below by specific embodiment and combine accompanying drawing the present invention is described in further detail.
Embodiment one
With reference to shown in Fig. 1 to Fig. 4, the present embodiment provides a kind of Air Filter Filter Core, and it includes many filters arranged in parallel
Pipe 2,
One end of the chimney filter 2 has peristome 3, and the other end has sealing 1；
Multiple eyed structures are provided with the outer peripheral face of the chimney filter 2, each eyed structure with the chimney filter 2 inside
Hollow cavity is connected.
Air Filter Filter Core air when filtering is entered from the peristome 3 of the one end of chimney filter 2 in the present embodiment, along chimney filter 2
Internal hollow cavity movement, is blocked when the sealing 1 of the other end of chimney filter 2 is reached, and so defines one in chimney filter 2
Malleation.Air has arrived the outside of chimney filter 2 in the presence of malleation by eyed structure, and pollutant are cut by eyed structure during this
Stay filtration.
It can be seen that, compared with prior art, the invention has the beneficial effects as follows the available screen area of unit cross-sectional area is larger,
Therefore the rate of filtration is lifted.Simultaneously because can be larger with screen area, the dirty speed of filter element can be reduced, reduce and change filter element
Frequency.
A kind of method of the manufacture Air Filter Filter Core is described below.
The tube that the chimney filter 2 is rolled into by the filter screen with eyed structure.And, the quantity of the filter screen be one layer or
Person's multilamellar.
More specifically, filter screen material is selected according to demand, such as HEPA filter screens made by melt-blown terylene non-woven fabric.Filter screen
It is generally soft, therefore easily molding, such as after winding two-layer on elongated metal tube, fixed with glue point.The two ends of chimney filter 2 and frame
Frame connect, one end open and other end blocks stuffiness.
What deserves to be explained is, the quantity of chimney filter 2 is not limited to certain particular form in this enforcement, can be according to actual needs
Flexibly arrange.Meanwhile, the length and eyed structure of chimney filter 2, can be according to operations nor strictly make excessive demands in certain size
Requirement is varied.Therefore, it is known that the present embodiment one it is claimed by the application chimney filter 2, (one end has peristome 3, the other end
With sealing 1) all filter elements for being constituted, either the filter element of which kind of shape belong to protection scope of the present invention.
Embodiment two
With reference to shown in Fig. 1 to Fig. 3, the present embodiment two is a kind of preferred implementation of above-described embodiment one.
Multiple chimney filters 2 are fixed together by framework, a filter element is formed.The shell of filter element should be perforate, such as
Netted, it is impossible to affect the air after purification to discharge.The thickness significantly less than collapsible filter screen can be accomplished due to the diameter of chimney filter 2
Degree, therefore, chimney filter 2 can be arranged in a thin plane, so as to form laminar filter element.
The present embodiment provides a kind of Air Filter Filter Core, and it includes many chimney filters 2 arranged in parallel,
One end of the chimney filter 2 has peristome 3, and the other end has sealing 1；
Multiple eyed structures are provided with the outer peripheral face of the chimney filter 2, each eyed structure with the chimney filter 2 inside
Hollow cavity is connected；
The many chimney filters 2 surround one in laminar filter element.
Specifically, the laminar filter element also includes：First metallic plate and the second metallic plate, on first metallic plate
Multiple through holes are provided with, installed in the peristome 3 of the chimney filter 2, second metallic plate is corresponding to be installed on correspondence in each through hole
On the sealing 1 of the chimney filter 2.
Preferably, in the present embodiment, 12 chimney filters 2 of totally 2 row of chimney filter 2.Preferably, 2 millimeters of 2 diameter of single chimney filter,
About 8 millimeters of filter element thickness (thickness of framework is also counted in), result in formation of a ultra-thin filter element.The air inlet of chimney filter 2
(peristome 3) is combined all on one side by one piece of first metallic plate, and such convenient filter is come using a blower fan
Air blast.Other end is then blocked by the second sheet-metal plates, forms sealing 1.Second metallic plate is played a supporting role simultaneously, is filtered
Air afterwards flows out from the side of chimney filter 2.Arrow indicates air-flow direction.
Air Filter Filter Core air when filtering is entered from the peristome 3 of the one end of chimney filter 2 in the present embodiment, along chimney filter 2
Internal hollow cavity movement, is blocked when the sealing 1 of the other end of chimney filter 2 is reached, and so defines one in chimney filter 2
Malleation.Air has arrived the outside of chimney filter 2 in the presence of malleation by eyed structure, and pollutant are cut by eyed structure during this
Stay filtration.
It can be seen that, compared with prior art, the invention has the beneficial effects as follows the available screen area of unit cross-sectional area is larger,
Therefore the rate of filtration is lifted.Simultaneously because can be larger with screen area, the dirty speed of filter element can be reduced, reduce and change filter element
Frequency.
It can be seen that, the technical scheme disclosed in the present embodiment two contains the technical scheme in embodiment one, therefore, embodiment
Technical characteristic disclosed in one falls within the protection domain of the present embodiment two, the manufacture method and institute with regard to single chimney filter 2
Material of filter screen of selection etc. is described in detail above, and here is omitted.
Embodiment three
With reference to shown in Fig. 1 to Fig. 4, the present embodiment three is a kind of preferred implementation existed side by side with embodiment two.
Multiple chimney filters 2 are fixed together by framework, a filter element is formed.The shell of filter element should be perforate, such as
Netted, it is impossible to affect the air after purification to discharge.Multiple chimney filters 2 constitute a kind of filter element of cylinder.
The present embodiment provides a kind of Air Filter Filter Core, and it includes many chimney filters 2 arranged in parallel,
One end of the chimney filter 2 has peristome 3, and the other end has sealing 1；
Multiple eyed structures are provided with the outer peripheral face of the chimney filter 2, each eyed structure with the chimney filter 2 inside
Hollow cavity is connected；
The many chimney filters 2 surround a cylindrical filter element.
Equally, specifically, the columned filter element also includes：Metallic plate and netted shell, many chimney filters 2 are surrounded
One columned filter element, is protected by netted shell, and the metallic plate correspondence is installed on the sealing 1 of the chimney filter 2.
Air Filter Filter Core air when filtering is entered from the peristome 3 of the one end of chimney filter 2 in the present embodiment, along chimney filter 2
Internal hollow cavity movement, is blocked when the sealing 1 of the other end of chimney filter 2 is reached, and so defines one in chimney filter 2
Malleation.Air has arrived the outside of chimney filter 2 in the presence of malleation by eyed structure, and pollutant are cut by eyed structure during this
Stay filtration.
It can be seen that, compared with prior art, the invention has the beneficial effects as follows the available screen area of unit cross-sectional area is larger,
Therefore the rate of filtration is lifted.Simultaneously because can be larger with screen area, the dirty speed of filter element can be reduced, reduce and change filter element
Frequency.
It can be seen that, the technical scheme disclosed in the present embodiment three contains the technical scheme in embodiment one, therefore, embodiment
Technical characteristic disclosed in one falls within the protection domain of the present embodiment three, the manufacture method and institute with regard to single chimney filter 2
Material of filter screen of selection etc. is described in detail above, and here is omitted.
Example IV
With reference to shown in Fig. 1 to Fig. 4, the present embodiment four provides a kind of filter plant, including housing and embodiment one, embodiment
Two and embodiment three any one of Air Filter Filter Core, the Air Filter Filter Core is fixed in the housing.
The Air Filter Filter Core includes many chimney filters 2 arranged in parallel,
One end of the chimney filter 2 has peristome 3, and the other end has sealing 1；
Multiple eyed structures are provided with the outer peripheral face of the chimney filter 2, each eyed structure with the chimney filter 2 inside
Hollow cavity is connected.
Further, many chimney filters 2 surround one in laminar filter element.
Or, many chimney filters 2 surround a cylindrical filter element.
Air Filter Filter Core air when filtering is entered from the peristome 3 of the one end of chimney filter 2, along hollow inside chimney filter 2
Cavity is moved, and is blocked when the sealing 1 of the other end of chimney filter 2 is reached, and so defines a malleation in chimney filter 2.Air
The outside of chimney filter 2 is arrived by eyed structure in the presence of malleation, pollutant are filtered by eyed structure retention during this.
Referred to herein as filter plant can filter for car engine air admittance, domestic air purification equipment, dust-free workshop
Etc..Compared with prior art, the invention has the beneficial effects as follows the available screen area of unit cross-sectional area is larger, therefore lifted
The rate of filtration.Simultaneously because can be larger with screen area, the dirty speed of filter element can be reduced, reduce the frequency for changing filter element.
The last present invention can make a kind of laminar filter element, in can be used for laminar air filter.
Finally it should be noted that：Various embodiments above only to illustrate technical scheme, rather than a limitation；To the greatest extent
Pipe has been described in detail with reference to foregoing embodiments to the present invention, it will be understood by those within the art that：Its according to
So the technical scheme described in foregoing embodiments can be modified, either which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, do not make the essence disengaging various embodiments of the present invention technology of appropriate technical solution
The scope of scheme.
Claims (10)
1. a kind of Air Filter Filter Core, it is characterised in that including many chimney filters arranged in parallel,
One end of the chimney filter has peristome, and the other end has sealing；
Multiple eyed structures are provided with the outer peripheral face of the chimney filter, each eyed structure with the chimney filter inside middle cavity
Body phase is connected.
2. Air Filter Filter Core according to claim 1, it is characterised in that the chimney filter is by the filter screen with eyed structure
The tube being rolled into.
3. Air Filter Filter Core according to claim 2, it is characterised in that the quantity of the filter screen is a layer or many
Layer.
4. Air Filter Filter Core according to claim 1, it is characterised in that many chimney filters surround in laminar filter
Core.
5. Air Filter Filter Core according to claim 4, it is characterised in that also include：First metallic plate and the second metal
Plate, first metallic plate is provided with multiple through holes, the corresponding peristome installed in the chimney filter in each through hole, and described second
Metallic plate correspondence is installed on the sealing of the chimney filter.
6. Air Filter Filter Core according to claim 5, it is characterised in that many chimney filters are arranged in two rows, often row is 6
Chimney filter.
7. Air Filter Filter Core according to claim 5, it is characterised in that the chimney filter is a diameter of 2 millimeters.
8. Air Filter Filter Core according to claim 1, it is characterised in that many chimney filters surround a cylindrical filter
Core.
9. Air Filter Filter Core according to claim 2, it is characterised in that the filter screen is HEPA filter screens.
10. a kind of filter plant, including housing and the Air Filter Filter Core according to any one of claim 1-9, it is described
Air Filter Filter Core is fixed in the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710059193.1A CN106669314A (en) | 2017-01-23 | 2017-01-23 | Air filtration filter element and filter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710059193.1A CN106669314A (en) | 2017-01-23 | 2017-01-23 | Air filtration filter element and filter device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106669314A true CN106669314A (en) | 2017-05-17 |
Family
ID=58859639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710059193.1A Pending CN106669314A (en) | 2017-01-23 | 2017-01-23 | Air filtration filter element and filter device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106669314A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107983123A (en) * | 2017-12-29 | 2018-05-04 | 浙江省海洋水产养殖研究所 | Air filtering dust-removing laboratory |
| CN112619336A (en) * | 2020-10-29 | 2021-04-09 | 陈静 | Multilayer treatment formula atmosphere treatment equipment based on environment is administered and is used |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4935042A (en) * | 1987-12-01 | 1990-06-19 | Asahi Glass Company Ltd. | Exhaust gas treating device |
| US20080236119A1 (en) * | 2007-03-27 | 2008-10-02 | Boland Timothy J | Exhaust gas particulate filter for a machine and filter cartridge therefor |
| CN104147850A (en) * | 2014-07-25 | 2014-11-19 | 刘凯 | Porous diatom ooze composite ceramic filter element |
| CN105169838A (en) * | 2015-07-27 | 2015-12-23 | 时建华 | Air purifying apparatus provided with filter screen and capable of reducing noises |
| CN106457113A (en) * | 2013-11-13 | 2017-02-22 | 德克斯维特国际股份有限公司 | Synthetic injected hydrophilic filter system |
-
2017
- 2017-01-23 CN CN201710059193.1A patent/CN106669314A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4935042A (en) * | 1987-12-01 | 1990-06-19 | Asahi Glass Company Ltd. | Exhaust gas treating device |
| US20080236119A1 (en) * | 2007-03-27 | 2008-10-02 | Boland Timothy J | Exhaust gas particulate filter for a machine and filter cartridge therefor |
| CN106457113A (en) * | 2013-11-13 | 2017-02-22 | 德克斯维特国际股份有限公司 | Synthetic injected hydrophilic filter system |
| CN104147850A (en) * | 2014-07-25 | 2014-11-19 | 刘凯 | Porous diatom ooze composite ceramic filter element |
| CN105169838A (en) * | 2015-07-27 | 2015-12-23 | 时建华 | Air purifying apparatus provided with filter screen and capable of reducing noises |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107983123A (en) * | 2017-12-29 | 2018-05-04 | 浙江省海洋水产养殖研究所 | Air filtering dust-removing laboratory |
| CN107983123B (en) * | 2017-12-29 | 2023-06-30 | 浙江省海洋水产养殖研究所 | Air filtration dust removal laboratory |
| CN112619336A (en) * | 2020-10-29 | 2021-04-09 | 陈静 | Multilayer treatment formula atmosphere treatment equipment based on environment is administered and is used |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206207576U (en) | A kind of air purifier | |
| KR102138010B1 (en) | Composit filter of water purifier | |
| CN205208803U (en) | Multistage air purification device of box | |
| CN205199236U (en) | Assembled air filter that strains at beginning of two of module | |
| CN106669314A (en) | Air filtration filter element and filter device | |
| CN102240490A (en) | Folding air purification filter for heating and ventilating air conditioner | |
| CN205699885U (en) | Gas-filtering device and there is the air purifier of this gas-filtering device | |
| CN104368204B (en) | Water injector for air purifier | |
| CN204313430U (en) | A kind of highly effective air purification air structure | |
| CN109865357A (en) | Clarifier axis volume circulation filter element device and air purifier | |
| CN105797506A (en) | Sinter plate dust remover | |
| CN205461483U (en) | Filter core for wall -hanging air conditioner | |
| CN105664694B (en) | A kind of air cleaning unit | |
| EP3167949A1 (en) | Mobile cleaning device and method for cleaning room air and/or fresh air | |
| CN108722111A (en) | A kind of air-purification filter device of removal formaldehyde in air VOC | |
| CN108518770A (en) | A kind of Novel humidifying type air purifier | |
| CN205360844U (en) | Bucket formula air purification filter screen | |
| CN105674425A (en) | Air filtering screen assembly and air purifier | |
| CN202149580U (en) | Folded air purification filter for heating, ventilating and air conditioning | |
| CN207680211U (en) | Clarifier axis volume cycle filter element device and air purifier | |
| CN106390614A (en) | Anti-corrosion air cleaner | |
| CN202682941U (en) | Smog decontamination plant | |
| CN205939476U (en) | Milipore filter new trend system | |
| CN207342360U (en) | A kind of airstrainer | |
| CN205287896U (en) | Two filter vat structures |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |