CN114931819A - Gas filtering structure and device - Google Patents
Gas filtering structure and device Download PDFInfo
- Publication number
- CN114931819A CN114931819A CN202210470988.2A CN202210470988A CN114931819A CN 114931819 A CN114931819 A CN 114931819A CN 202210470988 A CN202210470988 A CN 202210470988A CN 114931819 A CN114931819 A CN 114931819A
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- Prior art keywords
- gas
- filtering
- filter
- anger
- floor
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- 238000001914 filtration Methods 0.000 title claims abstract description 122
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 abstract description 69
- 239000002737 fuel gas Substances 0.000 abstract description 24
- 239000011148 porous material Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 101100334009 Caenorhabditis elegans rib-2 gene Proteins 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000009991 scouring Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 229910000601 superalloy Inorganic materials 0.000 description 2
- 238000010146 3D printing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Physics & Mathematics (AREA)
- Geometry (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a fuel gas filtering structure and a device, wherein the fuel gas filtering structure comprises: give vent to anger and connect and a plurality of filtration floor, it is equipped with the venthole in the middle of connecting to give vent to anger, and is a plurality of it sets up to filter floor annular array on one section periphery that the joint of giving vent to anger, and every filter the floor all with it is formed with the cavity to give vent to anger to connect, the cavity with the venthole intercommunication, every filter and all be equipped with on the floor and correspond a plurality of first filtration pores of cavity intercommunication. According to the gas filtering structure, the plurality of filtering rib plates are arranged at one end of the gas outlet joint, each filtering rib plate and the gas outlet joint form a cavity, the cavities are communicated with the gas outlet holes, and each filtering rib plate is provided with the plurality of first filtering holes communicated with the corresponding cavities.
Description
Technical Field
The invention relates to the technical field of gas filtration, in particular to a gas filtration structure and a gas filtration device.
Background
The attitude control power system of the rocket is used as auxiliary power of the rocket, the required thrust is smaller, so that the jet pipe is also smaller, and the thrust is generally required to be adjusted by changing the throat diameter of the jet pipe. The gas generator provides a stable gas source for the attitude control power system, and the generated gas often has some residues, and if the residues of the gas directly enter the spray pipe, the throat of the spray pipe is likely to be blocked.
In the existing gas filtering structure, after gas passes through the gas filtering structure, the pressure drop is large, the energy loss is large, and the thrust of a posture control power system can be influenced. Based on this, provide a gas filtration of little pressure drop, filter tiny particle gas residue, reduce the gas pressure drop, can be high temperature resistant high pressure gas and erode, satisfy the work demand.
Disclosure of Invention
The embodiment of the invention provides a fuel gas filtering structure and a fuel gas filtering device, which are used for solving the technical problem that the pressure drop of the conventional fuel gas filtered by a filtering structure is large in the related art.
In a first aspect, a gas filter structure is provided, the gas filter structure comprising:
the middle of the air outlet joint is provided with an air outlet hole;
the filtering rib plates are arranged on one section of the periphery of the air outlet connector at intervals in an annular mode, a cavity is formed between each filtering rib plate and the air outlet connector, the cavity is communicated with the air outlet holes, and a plurality of first filtering holes communicated with the corresponding cavities are formed in each filtering rib plate.
In some embodiments, a gap with a predetermined width and a predetermined depth is left between two adjacent filter ribs.
In some embodiments, each of the filter rib plates has a droplet-shaped cross section, and includes an arc-shaped top, two straight-side portions connected to the arc-shaped top, and an arc-shaped bottom connected to each of the straight-side portions, and the two arc-shaped bottoms are further connected to the air outlet joint.
In some embodiments, the gas filtering structure further comprises:
the first end portion shrouding, the first end portion shrouding is located the joint one end of giving vent to anger, the first end portion shrouding is used for the capping the joint and a plurality of giving vent to anger the one end of filtering the floor.
In some embodiments, the first end sealing plate is provided with a plurality of second filtering holes.
In some embodiments, the gas filtering structure further comprises:
the second end portion shrouding, the second end portion shrouding is located a plurality ofly filter the other end of floor, the second end portion shrouding is used for the lid to seal a plurality ofly filter the other end of floor.
In some embodiments, the gas filtering structure further comprises:
the reinforcing plates are arranged at intervals along the axial direction of the air outlet joint, and each reinforcing plate is connected with the plurality of filtering rib plates.
In some embodiments, the first filtering holes of each filtering rib are distributed in a space point shape.
In some embodiments, the periphery of one end of the air outlet joint, which is far away from the plurality of filtering rib plates, is provided with a connecting thread.
In a second aspect, a fuel gas filtering device is provided, which comprises the fuel gas filtering structure.
The technical scheme provided by the invention has the beneficial effects that:
the embodiment of the invention provides a gas filtering structure and a device, wherein a plurality of filtering rib plates are arranged on the periphery of one section of a gas outlet joint of the gas filtering structure, each filtering rib plate and the gas outlet joint form a cavity, the cavity is communicated with a gas outlet hole, a plurality of first filtering holes communicated with the corresponding cavity are arranged on each filtering rib plate, and in the overall view, the accumulation of all the first filtering holes can enable the filtering area of the gas filtering structure in the embodiment of the invention to be sufficiently large, the overall ventilation area is not influenced, the pressure drop is small, the energy loss of gas is reduced, and the influence on the gas flow fields of the upstream and the downstream is basically avoided.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a front view of a gas filtering structure according to an embodiment of the present invention;
FIG. 2 is a schematic view of the direction A-A of FIG. 1 according to an embodiment of the present invention;
FIG. 3 is an axial view of a gas filter arrangement according to an embodiment of the present invention;
FIG. 4 is a partial schematic view of a gas filter arrangement according to an embodiment of the present invention;
FIG. 5 is another axial view of a gas filter arrangement according to an embodiment of the present invention;
in the figure: 1. an air outlet joint; 11. an air outlet; 2. filtering the ribbed plate; 21. a cavity; 22. a first filtering hole; 23. a gap; 24. a circular arc top; 25. a straight side portion; 26. a circular arc-shaped bottom; 3. a first end closure plate; 31. a second filtering hole; 4. a second end closure plate; 5. a reinforcing plate.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
The embodiment of the invention provides a fuel gas filtering structure, which can solve the technical problem that the pressure drop of the conventional fuel gas is large after the fuel gas is filtered by a filtering structure.
Referring to fig. 1 and 2, an embodiment of the present invention provides a fuel gas filter structure, including: an air outlet connector 1 and a plurality of filtering ribs 2.
The middle of the air outlet joint 1 is provided with an air outlet hole 11, a plurality of filtering rib plates 2 are annularly arranged on one section of the periphery of the air outlet joint 1 at intervals, each filtering rib plate 2 is formed with a cavity 21 with the air outlet joint 1, the cavity 21 is communicated with the air outlet hole 11, and each filtering rib plate 2 is provided with a plurality of first filtering holes 22 communicated with the corresponding cavity 21, as shown in fig. 3. Preferably, the first filter openings 22 of each filter rib 2 are distributed in a spatially dotted manner.
In the gas filtering structure in the embodiment of the invention, a plurality of filtering rib plates 2 are arranged on one section of the periphery of the gas outlet joint 1, each filtering rib plate 2 and the gas outlet joint 1 form a cavity 21, the cavity 21 is communicated with the gas outlet 11, each filtering rib plate 2 is provided with a plurality of first filtering holes 22 communicated with the corresponding cavity 21, and in a whole view, the accumulation of all the first filtering holes 22 can ensure that the filtering area of the gas filtering structure in the embodiment of the invention is sufficiently large, the whole ventilation area is not influenced, the pressure drop is small, the energy loss of gas is reduced, and the influence on the upstream and downstream gas flow fields is basically avoided.
As an alternative embodiment, in an embodiment of the invention, as shown in fig. 2, a gap 23 of a predetermined width and a predetermined depth is left between two adjacent filter ribs 2. The gap 23 between two adjacent filter ribs 2 can filter out a part of gas residue with larger diameter. Referring to fig. 3 shows, under the effect of pressure, the residue in gap 23 can be pushed to the tip, filters great gas residue earlier, then filters less gas residue, and multiple filterable mode filters fully clean, prevents that the gas filtration is plugged up to major diameter residue, does not cause gas filtration to block up, does not influence the filter effect.
As an alternative embodiment, referring to fig. 2, in an embodiment of the present invention, each of the filter ribs 2 has a droplet-shaped cross section, and includes a circular arc top portion 24, two straight side portions 25 connected to the circular arc top portion, and a circular arc bottom portion 26 connected to each of the straight side portions 25, and the two circular arc bottom portions 26 are further connected to the air outlet connector 1. . The water drop-shaped filtering ribbed plates 2 are adopted, the surface area is effectively increased, the filtering ventilation area accumulated by the first filtering holes 22 is greatly increased, and the water drop-shaped filtering ribbed plates 2 are resistant to scouring and have good structural performance.
As an alternative implementation, in an embodiment of the invention, referring to fig. 1 and 3, the gas filtering structure further includes: first end shrouding 3, first end shrouding 3 is located give vent to anger and connect 1 one end, first end shrouding 3 is used for the cover to seal give vent to anger and connect 1 and a plurality of 2 one end of filtering rib plate.
As an alternative embodiment, referring to fig. 4, in an embodiment of the present invention, a plurality of second filtering holes 31 are formed in the first end sealing plate 3, and the plurality of second filtering holes 31 also have a certain filtering effect and increase a filtering area.
As an alternative implementation, in an embodiment of the invention, referring to fig. 1 and 3, the fuel gas filtering structure further includes: a second end closure plate 4, the second end closure plate 4 being located at a plurality of the other ends of the filter ribs 2, the second end closure plate 4 being configured to cover a plurality of the other ends of the filter ribs 2.
As an alternative implementation, in an embodiment of the invention, referring to fig. 5, the gas filtering structure further includes: a plurality of reinforcing plate 5, it is a plurality of reinforcing plate 5 is followed it connects 1 axial interval arrangement to give vent to anger, every reinforcing plate 5 all with a plurality of filter floor 2 is connected, improves a plurality ofly filter floor 2's intensity, resistant erodeing.
As an alternative, in an embodiment of the present invention, the air outlet joint 1 and the plurality of filtering ribs 2 are made of nickel-based superalloy. Optionally, a high-temperature-resistant material GH3536 can be adopted, so that the fuel gas filter has good oxidation resistance and corrosion resistance, can be used for a long time below 900 ℃, has a short-time working temperature of 1080 ℃, and is suitable for filtering high-temperature fuel gas for a long time.
As an optional implementation manner, in an embodiment of the present invention, a connection thread is provided on an outer periphery of one end of the air outlet joint 1 away from the plurality of filtering ribs 2, so as to facilitate connection of the air outlet joint 1 with an external structure.
The fuel gas generated by the fuel gas generator enters from the filter ribs 2 of the fuel gas filter structure in the embodiment of the invention, the gap 23 between two adjacent filter ribs 2 filters large-particle solid residues, then the large-particle solid residues enter the first filter holes 22 (small holes) on the filter ribs 2, the small-particle solid residues are filtered for the second time, and finally relatively pure fuel gas flows out from the gas outlet 11 of the gas outlet joint 1.
The gas filtering structure in the embodiment of the invention can be formed by 3D printing, has no welding seam, good integrity and high structural strength, and the inner wall surface holes formed by space lattice layout have complete structure and high quality and do not influence the gas passing.
The embodiment of the invention also provides a fuel gas filtering device which comprises the fuel gas filtering structure. The gas filtration includes: an air outlet connector 1 and a plurality of filtering ribs 2.
It is equipped with venthole 11 to give vent to anger in the middle of connecting 1, and is a plurality of 2 annular intervals of filtering floor are established it connects 1 one section periphery to give vent to anger on, and every filter floor 2 all with it is formed with cavity 21 to give vent to anger to connect 1, cavity 21 with venthole 11 intercommunication, every filter floor 2 is last all be equipped with corresponding a plurality of first filtration hole 22 of cavity 21 intercommunication, see fig. 3 and show. Preferably, the first filter openings 22 of each filter rib 2 are distributed in a spatially dotted manner.
In the gas filtering device in the embodiment of the invention, the plurality of filtering rib plates 2 are arranged on the periphery of one section of the gas outlet joint 1 of the gas filtering structure, each filtering rib plate 2 and the gas outlet joint 1 form a cavity 21, the cavity 21 is communicated with the gas outlet 11, each filtering rib plate 2 is provided with a plurality of first filtering holes 22 communicated with the corresponding cavity 21, and in the overall view, the accumulation of all the first filtering holes 22 can ensure that the filtering area of the gas filtering structure in the embodiment of the invention is sufficiently large, the integral ventilation area is not influenced, the pressure drop is small, the energy loss of gas is reduced, and the upstream and downstream gas flow fields are not influenced basically.
As an alternative, in an embodiment of the invention, as shown in fig. 2, a gap 23 of a predetermined width and a predetermined depth is left between two adjacent filter ribs 2. The gap 23 between two adjacent filter ribs 2 can filter out a part of gas residue with larger diameter. Refer to fig. 3 and show, under the effect of pressure, the residue in the gap 23 can be pushed to the tip, filters great gas residue earlier, then filters less gas residue, and multiple filtration's mode filters fully totally, prevents that the gas filtration is plugged up to major diameter residue, does not cause the gas filtration to block up, does not influence the filter effect.
As an alternative embodiment, in an embodiment of the present invention, referring to fig. 2, each of the filter ribs 2 has a droplet-shaped cross section, and includes a circular arc top portion 24, two straight side portions 25 connected to the circular arc top portion, and a circular arc bottom portion 26 connected to each of the straight side portions 25, and the two circular arc bottom portions 26 are further connected to the air outlet connector 1. . The water drop-shaped filter rib plates 2 are adopted, the surface area is effectively increased, the filtering and ventilating area accumulated by the first filter holes 22 is greatly increased, and the water drop-shaped filter rib plates 2 are resistant to scouring and good in structural performance.
As an alternative implementation, in an embodiment of the invention, referring to fig. 1 and 3, the fuel gas filtering structure further includes: first end shrouding 3, first end shrouding 3 is located the joint 1 one end of giving vent to anger, first end shrouding 3 is used for the capping the joint 1 and a plurality of give vent to anger the one end of filtering rib plate 2.
As an alternative embodiment, referring to fig. 4, in an embodiment of the present invention, a plurality of second filtering holes 31 are formed in the first end sealing plate 3, and the plurality of second filtering holes 31 also have a certain filtering effect and increase a filtering area.
As an alternative implementation, in an embodiment of the invention, referring to fig. 1 and 3, the gas filtering structure further includes: a second end closure plate 4, the second end closure plate 4 being located at a plurality of the other ends of the filter ribs 2, the second end closure plate 4 being configured to cover a plurality of the other ends of the filter ribs 2.
As an alternative implementation, in an embodiment of the invention, referring to fig. 5, the fuel gas filtering structure further includes: a plurality of reinforcing plates 5, it is a plurality of reinforcing plates 5 are followed give vent to anger and connect 1 axial interval arrangement, every reinforcing plate 5 all with a plurality of filter rib plate 2 is connected, improves a plurality ofly filter rib plate 2's intensity, resistant erodeing.
As an alternative, in an embodiment of the present invention, the air outlet joint 1 and the plurality of filtering ribs 2 are made of nickel-based superalloy. Optionally, a high-temperature-resistant material GH3536 can be adopted, so that the fuel gas filter has good oxidation resistance and corrosion resistance, can be used for a long time below 900 ℃, has a short-time working temperature of 1080 ℃, and is suitable for filtering high-temperature fuel gas for a long time.
As an optional implementation manner, in an embodiment of the present invention, a connection thread is provided on an outer periphery of one end of the air outlet joint 1 away from the plurality of filtering ribs 2, so as to facilitate connection of the air outlet joint 1 with an external structure.
In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It is to be noted that, in the present invention, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely illustrative of particular embodiments of the invention that enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A gas filtration structure, comprising:
the gas outlet joint (1), the middle of the gas outlet joint (1) is provided with a gas outlet hole (11);
a plurality of filter floor (2), it is a plurality of filter floor (2) annular array sets up on one section periphery of giving vent to anger joint (1), and every filter floor (2) all with give vent to anger joint (1) and be formed with cavity (21), cavity (21) with venthole (11) intercommunication, every filter floor (2) are gone up all to be equipped with and correspond a plurality of first filtration hole (22) of cavity (21) intercommunication.
2. The gas fired filter structure of claim 1, wherein: a gap (23) with a preset width and a preset depth is reserved between every two adjacent filtering rib plates (2).
3. The gas fired filter structure of claim 1, wherein:
the cross section of each filtering rib plate (2) is in a drop shape and comprises an arc-shaped top (24), two straight side parts (25) connected with the arc-shaped top and an arc-shaped bottom (26) connected with each straight side part (25), and the two arc-shaped bottoms (26) are further connected with the air outlet connector (1).
4. The gas filter structure of claim 1, further comprising:
first end shrouding (3), first end shrouding (3) are located give vent to anger and connect (1) one end, first end shrouding (3) are used for the capping give vent to anger and connect (1) and a plurality of the one end of filtering floor (2).
5. The gas fired filter structure of claim 4, wherein: the first end sealing plate (3) is provided with a plurality of second filtering holes (31).
6. A gas filtration structure as recited in claim 1, further comprising:
a plurality of second end shrouding (4) are located to second end shrouding (4) filter rib plate (2)'s the other end, second end shrouding (4) are used for covering a plurality of filter rib plate (2)'s the other end.
7. A gas filtration structure as recited in claim 1, further comprising:
a plurality of reinforcing plate (5), a plurality of reinforcing plate (5) are followed it connects (1) axial interval arrangement to give vent to anger, every reinforcing plate (5) all with a plurality of filter floor (2) are connected.
8. The gas fired filter structure of claim 1, wherein: the first filtering holes (22) of each filtering rib plate (2) are distributed in a space point shape.
9. The gas fired filter structure of claim 1, wherein:
the periphery of one end, far away from the plurality of filtering rib plates (2), of the air outlet connector (1) is provided with connecting threads.
10. A gas filter arrangement comprising a gas filter structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210470988.2A CN114931819A (en) | 2022-04-28 | 2022-04-28 | Gas filtering structure and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210470988.2A CN114931819A (en) | 2022-04-28 | 2022-04-28 | Gas filtering structure and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114931819A true CN114931819A (en) | 2022-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210470988.2A Pending CN114931819A (en) | 2022-04-28 | 2022-04-28 | Gas filtering structure and device |
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| Country | Link |
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| CN (1) | CN114931819A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0441045A2 (en) * | 1990-02-05 | 1991-08-14 | Goblin Limited | Cartridge-type filter |
| CN203750354U (en) * | 2013-12-31 | 2014-08-06 | 佛山市高明燃气有限公司 | Gas filter device |
| CN105903235A (en) * | 2015-02-25 | 2016-08-31 | 雅玛信过滤器株式会社 | Filter element |
| CN207892738U (en) * | 2018-02-01 | 2018-09-21 | 上海弗列加滤清器有限公司 | A kind of filter core, air cleaner and automobile |
| CN208448877U (en) * | 2018-05-02 | 2019-02-01 | 新乡市艾洁净化科技有限公司 | A kind of combustion gas filter |
| CN209630802U (en) * | 2019-02-02 | 2019-11-15 | 中国环境科学研究院 | A kind of high efficiency particulate air filter |
| CN210699272U (en) * | 2019-06-27 | 2020-06-09 | 新乡市玉泉滤业有限公司 | Filter element of ultrahigh pressure filter |
-
2022
- 2022-04-28 CN CN202210470988.2A patent/CN114931819A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0441045A2 (en) * | 1990-02-05 | 1991-08-14 | Goblin Limited | Cartridge-type filter |
| CN203750354U (en) * | 2013-12-31 | 2014-08-06 | 佛山市高明燃气有限公司 | Gas filter device |
| CN105903235A (en) * | 2015-02-25 | 2016-08-31 | 雅玛信过滤器株式会社 | Filter element |
| CN207892738U (en) * | 2018-02-01 | 2018-09-21 | 上海弗列加滤清器有限公司 | A kind of filter core, air cleaner and automobile |
| CN208448877U (en) * | 2018-05-02 | 2019-02-01 | 新乡市艾洁净化科技有限公司 | A kind of combustion gas filter |
| CN209630802U (en) * | 2019-02-02 | 2019-11-15 | 中国环境科学研究院 | A kind of high efficiency particulate air filter |
| CN210699272U (en) * | 2019-06-27 | 2020-06-09 | 新乡市玉泉滤业有限公司 | Filter element of ultrahigh pressure filter |
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Application publication date: 20220823 |