CN218046928U - Partition plate for channel type filter - Google Patents
Partition plate for channel type filter Download PDFInfo
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- CN218046928U CN218046928U CN202220621101.0U CN202220621101U CN218046928U CN 218046928 U CN218046928 U CN 218046928U CN 202220621101 U CN202220621101 U CN 202220621101U CN 218046928 U CN218046928 U CN 218046928U
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Abstract
The utility model provides a baffle for channel filter, the baffle is the wave structural arrangement along longitudinal direction, the cross section of baffle reduces along transverse direction one end to the other end gradually, the baffle is equipped with opening part and bottom along transverse direction, the wave height of opening part wave structure is greater than the wave height of bottom wave structure. The bottom of the partition board is provided with a plurality of holes, and the edge of the bottom is provided with an arc angle structure. The wave number of the wave-shaped structure at the opening is the same as or different from that of the wave-shaped structure at the bottom. The utility model adopts the conical corrugated structure, the front and the back of the windward side and the air outlet side of the filter are matched, the limited space of the filter is distributed with the multilayer air inlet or outlet channel, the filter material area of the filter can be effectively increased, and the air flow is more uniform and smooth; the wave numbers and the distances between the waves at the opening and the bottom of the partition plate can be set to be the same or different to provide a ventilation effect and reduce wind resistance.
Description
Technical Field
The utility model relates to a filter technical field especially relates to a baffle for passageway formula filter.
Background
The air filter is a device for collecting dust from gas-solid two-phase flow and purifying gas by the action of porous filtering material, and its principle is that the dust particles in the air move with the air flow by means of inertial motion or random Brownian motion or under the action of some kind of field force, and when the particles move and collide with other objects, the van der Waals force between the objects makes the particles adhere to the surface of fibre.
Generally, the dust-proof material is used for dust prevention in clean workshops, clean plants, laboratories and clean rooms, or in electronic mechanical communication equipment and the like. At present, most of air filters comprise a partition plate, the partition plate is made of materials such as ceramics, aluminum foil or stainless steel, but the partition plate cannot be used in special environments, such as high-salt-content, acidic, alkaline or sulfur-containing gas. In addition, the conventional partition plate has a rectangular structure, so that when the filter material is inserted, a folded part of the filter material is easily punctured, and the air filter leaks.
In the conventional air filter in which a separator made of thick paper, plastic, aluminum, or the like folded in a wave shape having the same height and a filter paper having the same width as the separator are overlapped with each other, the flow rate of the fluid decreases from the filter inlet to the bottom, that is, the effective area of the filter decreases. Under the condition of ensuring that the whole size of the air filter is not changed, how to reduce the wind resistance at rated wind pressure or wind quantity and provide dust holding capacity needs to be solved.
In view of the above, there is a need for an improved air filter in the prior art to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to disclose a baffle for passageway formula filter, this baffle adopt the wave design of toper flute structure, and the opening part wave height of baffle is greater than the wave height of baffle bottom and makes air cleaner's air inflow partial area increase, therefore air flow resistance reduces, forms low loss, low windage.
In order to achieve the above object, the utility model provides a baffle for channel filter, the baffle is the wave structure along longitudinal direction and arranges, the cross section of baffle reduces gradually along transverse direction one end to the other end, the baffle is equipped with opening part and bottom along transverse direction, the wave height of opening part wave structure is greater than the wave height of bottom wave structure.
In some embodiments, the bottom of the partition board is provided with a plurality of holes, and the edge of the bottom is provided with a circular arc angle structure.
In some embodiments, the wavenumber of the waved structures at the opening is the same as the wavenumber of the waved structures at the bottom.
In some embodiments, the wave number of the wave-shaped structures at the opening is less than the wave number of the wave-shaped structures at the bottom, and the ratio of the spacing between the wave-shaped structures at the bottom to the spacing between the wave-shaped structures at the opening is 1.
In some embodiments, the ratio of the wave height of the bottom wavy structure to the wave height of the wavy structure at the opening is 1.
In some embodiments, the cross section of the partition plate is triangular, an angle α is formed between the opening and the bottom of the partition plate, and the value of α is 1-6 °.
Compared with the prior art, the beneficial effects of the utility model are that: (1) The filter adopts a conical corrugated structure, the windward side and the air outlet side of the filter are matched front and back, and the limited space of the filter is distributed with a plurality of layers of air inlet or outlet channels, so that the area of filter materials of the filter can be effectively increased, and the air flow is more uniform and smoother; (2) The partition board adopts a porous design, so that the air flow of the filter can be ensured to be communicated and flow equalized in the using process, and the air flows are distributed in the channel chamber through the holes, so that the resistance and the air flow uniformity of the filter are reduced; (3) One end of the partition board is provided with an arc angle, so that the filter material is prevented from being punctured to cause filter leakage, and the yield of products is improved; (4) The wave numbers and the distances between the waves at the opening and the bottom of the partition plate can be set to be different to provide a ventilation effect and reduce wind resistance.
Drawings
Fig. 1 is a schematic structural view of the partition plate of the present invention;
FIG. 2 is a schematic view of the novel structure of the bending wave filter material;
FIG. 3 is a schematic view of the use of the partition board of the present invention;
FIG. 4 is a schematic view of the internal structure of the air filter of the present invention;
FIG. 5 is a schematic view of the baffle plate of the present invention;
FIG. 6 is a schematic view of a conventional separator structure;
FIG. 7 is a schematic view of a conventional corrugated filter;
FIG. 8 is a schematic view showing an internal structure of a conventional air filter;
FIG. 9 is a schematic view of the flow of a conventional baffle plate;
fig. 10 is a schematic structural view of another partition plate according to the present invention;
description of reference numerals: 1. a partition plate; 2. wave crest; 3. a trough of a wave; 4. is porous; 5. an arc angle structure; 6. a novel structure of a bending wave filter material; 7. a conventional separator plate; 8. a conventional structure of a bending wave filter material; 9. the waveform of the bottom wavy structure; 10. the wave shape of the wave-shaped structure at the opening.
Detailed Description
The present invention will be described in detail with reference to the embodiments shown in the drawings, but it should be understood that these embodiments are not intended to limit the present invention, and that the functional equivalents, methods, or structural equivalents thereof, or substitutions thereof by those skilled in the art are all within the scope of the present invention.
Example 1
As shown in fig. 1 to 9, a partition plate for a channel filter, the partition plate 1 is arranged in a wave-shaped structure along a longitudinal direction, a cross section of the partition plate 1 gradually decreases from one end to the other end along a transverse direction, the partition plate 1 is provided with an opening and a bottom along the transverse direction, and a wave height of the wave-shaped structure at the opening is greater than a wave height of the wave-shaped structure at the bottom.
A plurality of holes 4 are formed in the bottom of the partition board 1, and an arc angle structure 5 is arranged at the edge of the bottom. In this embodiment, the partition board 1 is provided with a row of round holes along the bottom edge, and the round holes are located at the wave crests or wave troughs.
In this embodiment, the wave number of the wave-shaped structure at the opening is the same as that of the wave-shaped structure at the bottom. The ratio of the wave height of the bottom wavy structure to the wave height of the wavy structure at the opening is 1.
As shown in fig. 4, the cross section of the partition board 1 is triangular or trapezoidal, an angle α is formed between the opening and the bottom of the partition board 1, and the angle α is 1 to 6 °, in this embodiment, the angle α is 2 °. The effective ventilation is ensured, and meanwhile, the filtering area is not reduced.
The partition board 1 is designed to be of a wave-shaped structure with a conical corrugated structure, the partition board 1 is arranged in a wave shape along the longitudinal direction of the partition board 1, and the distance between the wave crests 2 is the same as that between the wave troughs 3. The angle between the adjacent wave crests 2 is 40-60 degrees, and the preferred angle is 50 degrees in the embodiment.
The partition board 1 adopts a conical corrugated structure, is matched with the front and the back of the windward side and the air outlet side of the filter, and distributes a plurality of layers of air inlet or outlet channels in the limited space of the filter, so that the area of filter materials of the filter can be effectively increased, and meanwhile, the air flow is more uniform and smoother.
The partition board 1 is provided with the plurality of holes 4, so that the air flow of the filter in the using process can be ensured to be intercommunicated and flow equalized, and the air flow is distributed in the channel cavity of the air filter through the holes, so that the resistance of the filter can be reduced. The design of the arc angle structure 5 of the partition board 1 can avoid filter leakage caused by filter material puncture when the partition board 1 is inserted into the filter material 6, and the product yield is improved.
In the implementation, the partition board 1 is made of degradable plastics, is light and convenient, and can be suitable for various special environments, such as the environment containing high-salinity, acidic/alkaline or sulfur-containing gas.
Referring to fig. 2-8, the corrugated filter material 6 with the novel structure is matched with the partition board 1, the opening is large, the corrugated part is small, and the corrugated filter material 8 with the traditional structure is a rectangular structure. Fig. 4 and 8 are enlarged views of the internal structure of the air filter, respectively, and it can be seen that the partition board 1 of the present embodiment forms an air inlet larger than the conventional partition board 7, and therefore, the resistance is smaller for the same air volume. Fig. 5 and 9 are schematic views showing the flow of air under two kinds of separators, and it can be seen that the separator 1 of the present embodiment has almost little resistance to the flow of gas.
The porous 4 structure can ensure that the air flow in the air filter cavity is communicated and balanced, the pressure is uniformly distributed, and the diffusion is uniform. When power airflow enters the channel, the front side and the back side of the traditional clapboard 7 can naturally separate the airflow, a plurality of vortexes are formed inside, the airflow resistance cannot be smoothly output, and in addition, the traditional clapboard 7 can only separate the filter material into rectangles, convection is naturally formed during the output airflow channel, so that the resistance is increased.
Therefore, when the air filter medium is inserted alternately in order into the partition plates shown in the present embodiment, the area of the air inflow portion is increased, the fluid resistance is reduced, and a low-loss air filter can be formed. When in use, the partition board can be used under the condition of large air volume.
Example 2
As shown in fig. 1-9, a partition plate for a channel filter, wherein the partition plate 1 is arranged in a wave-shaped structure along a longitudinal direction, the cross section of the partition plate 1 gradually decreases from one end to the other end along a transverse direction, the partition plate 1 is provided with an opening and a bottom along the transverse direction, and the wave height of the wave-shaped structure at the opening is greater than that of the wave-shaped structure at the bottom.
A plurality of holes 4 are formed in the bottom of the partition board 1, and an arc angle structure 5 is arranged at the edge of the bottom. In this embodiment, the partition board 1 is provided with a row of round holes along the bottom edge, and the round holes are located at the wave crests or wave troughs.
In this embodiment, the wave number of the wave-shaped structure at the opening is the same as that of the wave-shaped structure at the bottom. The wave height ratio of the bottom wavy structure to the wave height ratio of the opening wavy structure is 1.
As shown in fig. 4, the cross section of the partition board 1 is triangular or trapezoidal, an angle α is formed between the opening and the bottom of the partition board 1, the angle value of α is 1 to 6 °, and the angle value of α in this embodiment is 4 °. The effective ventilation is ensured, and meanwhile, the filtering area is not reduced.
The partition board 1 adopts a wavy structure design of a conical corrugated structure, and is arranged in a wavy mode along the longitudinal direction of the partition board 1, and the distance between the wave crests 2 is the same as that between the wave troughs 3. The angle between the adjacent wave crests 2 is 40-60 degrees, and 40 degrees is preferred in the embodiment.
The baffle 1 adopts a conical corrugated structure, the windward side and the air outlet side of the filter are matched before and after being utilized, the limited space of the filter is distributed with a plurality of layers of air inlet or outlet channels, the filter material area of the filter can be effectively increased, and meanwhile, the air flow is more uniform and smoother.
The partition board 1 is provided with the plurality of holes 4, so that the air flow of the filter in the using process can be ensured to be intercommunicated and flow equalized, and the air flow is distributed in the channel cavity of the air filter through the holes, so that the resistance of the filter can be reduced. The design of the arc angle structure 5 of the partition board 1 can avoid filter leakage caused by filter material puncture when the partition board 1 is inserted into the filter material 6, and the product yield is improved.
In the implementation, the clapboard 1 is made of degradable plastics, is light and convenient, and can be suitable for various special environments, such as the environment containing high-salinity, acidic/alkaline or sulfur-containing gas.
Referring to fig. 2-8, the corrugated filter material 6 with the novel structure is matched with the partition board 1, the opening is large, the corrugated position is small, and the corrugated filter material 8 with the traditional structure is a rectangular structure. Fig. 4 and 8 are enlarged views of the internal structure of the air filter, respectively, and it can be seen that the partition board 1 of the present embodiment forms an air inlet larger than the conventional partition board 7, and therefore, the resistance is smaller for the same air volume. Fig. 5 and 9 are schematic views showing air flowing under two kinds of separators, and it can be seen that the separator 1 of the present embodiment has almost little resistance to the flow of gas.
The porous 4 structure can lead the air flow in the air filter cavity to be communicated and balanced, the pressure is uniformly distributed, and the diffusion is uniform. When power airflow enters the channel, the front side and the back side of the traditional partition plate 7 can naturally separate the airflow, multiple vortexes are formed inside the traditional partition plate, the airflow resistance cannot be increased on the contrary because the vortexes cannot be smoothly output, in addition, the traditional partition plate 7 can only separate filter materials into rectangles, convection is naturally formed during the airflow channel output, and the resistance is increased.
Therefore, when the air filter medium is inserted alternately in order and used, the area of the air inflow portion is increased and the fluid resistance is reduced, thereby forming a low-loss air filter. When in use, the partition board can be used under the condition of large air volume.
Example 3
As shown in fig. 1-9, a partition plate for a channel filter, wherein the partition plate 1 is arranged in a wave-shaped structure along a longitudinal direction, the cross section of the partition plate 1 gradually decreases from one end to the other end along a transverse direction, the partition plate 1 is provided with an opening and a bottom along the transverse direction, and the wave height of the wave-shaped structure at the opening is greater than that of the wave-shaped structure at the bottom.
A plurality of holes 4 are formed in the bottom of the partition board 1, and an arc angle structure 5 is arranged at the edge of the bottom. In this embodiment, the partition board 1 is provided with a row of round holes along the bottom edge, and the round holes are located at the wave crests or wave troughs.
In this embodiment, the wave number of the wave-shaped structure at the opening is the same as that of the wave-shaped structure at the bottom. The wave height ratio of the bottom wavy structure to the wave height ratio of the opening wavy structure is 2.
As shown in fig. 4, the cross section of the partition board 1 is triangular or trapezoidal, an angle α is formed between the opening and the bottom of the partition board 1, and the angle value of α is 1 to 6 °, in this embodiment, the angle value of α is 6 °. The effective ventilation is ensured, and meanwhile, the filtering area is not reduced.
The partition board 1 is designed to be of a wave-shaped structure with a conical corrugated structure, the partition board 1 is arranged in a wave shape along the longitudinal direction of the partition board 1, and the distance between the wave crests 2 is the same as that between the wave troughs 3. The angle between the adjacent wave crests 2 is 40-60 degrees, and 60 degrees is preferred in the embodiment.
The baffle 1 adopts a conical corrugated structure, the windward side and the air outlet side of the filter are matched before and after being utilized, the limited space of the filter is distributed with a plurality of layers of air inlet or outlet channels, the filter material area of the filter can be effectively increased, and meanwhile, the air flow is more uniform and smoother.
The partition board 1 is provided with the plurality of holes 4, so that the air flow of the filter in the using process can be ensured to be intercommunicated and flow equalized, and the air flow is distributed in the channel cavity of the air filter through the holes, so that the resistance of the filter can be reduced. The design of the arc angle structure 5 of the partition board 1 can avoid filter leakage caused by filter material puncture when the partition board 1 is inserted into the filter material 6, and the product yield is improved.
In this embodiment, the partition board 1 is made of degradable plastics or metal materials or paper materials, such as PP, copper foil, aluminum foil, stainless steel, and paper board.
The porous 4 structure can lead the air flow in the air filter cavity to be communicated and balanced, the pressure is uniformly distributed, and the diffusion is uniform. When power airflow enters the channel, the front side and the back side of the traditional clapboard 7 can naturally separate the airflow, a plurality of vortexes are formed inside, the airflow resistance cannot be smoothly output, and in addition, the traditional clapboard 7 can only separate the filter material into rectangles, convection is naturally formed during the output airflow channel, so that the resistance is increased.
Example 4
As shown in fig. 1-10, a partition plate for a channel filter, wherein the partition plate 1 is arranged in a wave-shaped structure along a longitudinal direction, the cross section of the partition plate 1 gradually decreases from one end to the other end along a transverse direction, the partition plate 1 is provided with an opening and a bottom along the transverse direction, and the wave height of the wave-shaped structure at the opening is greater than that of the wave-shaped structure at the bottom. A plurality of holes 4 are formed in the bottom of the partition board 1, and an arc angle structure 5 is arranged at the edge of the bottom.
As shown in fig. 10, in this embodiment, the wave number of the wave-shaped structure at the opening of the partition board 1 is less than that of the wave number of the wave-shaped structure at the bottom, the ratio of the distance between the wave-shaped structures 9 at the bottom to the distance between the wave-shaped structures 10 at the opening is 1.
The cross section of the partition board 1 is triangular or trapezoidal, an angle alpha is formed between the opening and the bottom of the partition board 1, the angle value of the alpha is 1-6 degrees, and the angle value of the alpha in the embodiment is 2 degrees. The effective ventilation is ensured, and meanwhile, the filtering area is not reduced.
The baffle 1 adopts a conical corrugated structure, the windward side and the air outlet side of the filter are matched before and after being utilized, the limited space of the filter is distributed with a plurality of layers of air inlet or outlet channels, the filter material area of the filter can be effectively increased, and meanwhile, the air flow is more uniform and smoother.
The partition board 1 is provided with the plurality of holes 4, so that the air flow of the filter in the using process can be ensured to be intercommunicated and flow equalized, and the air flow is distributed in the channel cavity of the air filter through the holes, so that the resistance of the filter can be reduced. The design of the arc angle structure 5 of the partition board 1 can avoid filter leakage caused by filter material puncture when the partition board 1 is inserted into the filter material 6, and the product yield is improved.
In the implementation, the clapboard 1 is made of degradable plastics, is light and convenient, and can be suitable for various special environments, such as the environment containing high-salinity, acidic/alkaline or sulfur-containing gas.
Referring to fig. 2-8, the corrugated filter material 6 with the novel structure is matched with the partition board 1, the opening is large, the corrugated part is small, and the corrugated filter material 8 with the traditional structure is a rectangular structure. Fig. 4 and 8 are enlarged views of the internal structure of the air filter, respectively, and it can be seen that the partition board 1 of the present embodiment forms an air inlet larger than the conventional partition board 7, and therefore, the resistance is smaller for the same air volume. Fig. 5 and 9 are schematic views showing the flow of air under two kinds of separators, and it can be seen that the separator 1 of the present embodiment has almost little resistance to the flow of gas.
The porous 4 structure can lead the air flow in the air filter cavity to be communicated and balanced, the pressure is uniformly distributed, and the diffusion is uniform. When power airflow enters the channel, the front side and the back side of the traditional clapboard 7 can naturally separate the airflow, a plurality of vortexes are formed inside, the airflow resistance cannot be smoothly output, and in addition, the traditional clapboard 7 can only separate the filter material into rectangles, convection is naturally formed during the output airflow channel, so that the resistance is increased.
Therefore, when the air filter medium is inserted alternately in order and used, the area of the air inflow portion is increased and the fluid resistance is reduced, thereby forming a low-loss air filter. When in use, the partition board can be used under the condition of large air volume.
Example 5
As shown in fig. 1 to 10, the partition board 1 is arranged in a wave-shaped structure along a longitudinal direction, a cross section of the partition board 1 gradually decreases from one end to the other end along a transverse direction, the partition board 1 is provided with an opening and a bottom along the transverse direction, and a wave height of the wave-shaped structure at the opening is greater than a wave height of the wave-shaped structure at the bottom. A plurality of holes 4 are formed in the bottom of the partition board 1, and an arc angle structure 5 is arranged at the edge of the bottom.
As shown in fig. 10, in this embodiment, the wave number of the wave-shaped structure at the opening of the partition board 1 is smaller than that of the wave number of the wave-shaped structure at the bottom, the ratio of the spacing between the wave-shaped structures 9 at the bottom to the spacing between the wave-shaped structures 10 at the opening is 1.
The cross section of the partition board 1 is triangular or trapezoidal, an angle alpha is formed between the opening and the bottom of the partition board 1, the angle value of the alpha is 1-6 degrees, and the angle value of the alpha in the embodiment is 6 degrees. The effective ventilation is ensured, and meanwhile, the filtering area is not reduced.
The baffle 1 adopts a conical corrugated structure, the windward side and the air outlet side of the filter are matched before and after being utilized, the limited space of the filter is distributed with a plurality of layers of air inlet or outlet channels, the filter material area of the filter can be effectively increased, and meanwhile, the air flow is more uniform and smoother.
The partition board 1 is provided with the plurality of holes 4, so that the air flow of the filter in the using process can be ensured to be intercommunicated and flow equalized, and the air flow is distributed in the channel cavity of the air filter through the holes, so that the resistance of the filter can be reduced. The design of the arc angle structure 5 of the partition board 1 can avoid filter leakage caused by filter material puncture when the partition board 1 is inserted into the filter material 6, and the product yield is improved.
In the implementation, the clapboard 1 is made of degradable plastics, is light and convenient, and can be suitable for various special environments, such as the environment containing high-salinity, acidic/alkaline or sulfur-containing gas.
Referring to fig. 2-8, the new structure of the corrugated filter material 6 is matched with the partition board 1, the opening is large, the corrugated part is small, and the corrugated filter material 9 of the traditional structure is rectangular. Fig. 4 and 8 are enlarged views of the internal structure of the air filter, respectively, and it can be seen that the partition board 1 of the present embodiment forms an air inlet larger than the conventional partition board 7, and therefore, the resistance is smaller for the same air volume. Fig. 5 and 9 are schematic views showing air flowing under two kinds of separators, and it can be seen that the separator 1 of the present embodiment has almost little resistance to the flow of gas.
The porous 4 structure can lead the air flow in the air filter cavity to be communicated and balanced, the pressure is uniformly distributed, and the diffusion is uniform. When power airflow enters the channel, the front side and the back side of the traditional clapboard 7 can naturally separate the airflow, a plurality of vortexes are formed inside, the airflow resistance cannot be smoothly output, and in addition, the traditional clapboard 7 can only separate the filter material into rectangles, convection is naturally formed during the output airflow channel, so that the resistance is increased.
Table 1-1 shows experimental data of initial resistance of air filters measured at different air volumes using the separators of examples 1-5 and conventional separators.
TABLE 1
TABLE 2
As can be seen from tables 1 to 2, the air filters using the partition plates shown in this example all measured initial resistances at the same air volume less than the air filters using the conventional partition plates. This is also better illustrated by the schematic gas flow diagrams of fig. 5 and 9.
The above list of detailed descriptions is only for the specific description of the feasible embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the technical spirit of the present invention should be included within the scope of the present invention.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (6)
1. The partition board for the channel type filter is characterized in that the partition board (1) is arranged in a wave-shaped structure along the longitudinal direction, the cross section of the partition board (1) is gradually reduced from one end to the other end along the transverse direction, an opening and a bottom are arranged on the partition board (1) along the transverse direction, and the wave height of the wave-shaped structure at the opening is larger than that of the wave-shaped structure at the bottom.
2. The partition plate for the channel-type filter according to claim 1, wherein the bottom of the partition plate (1) is provided with a plurality of holes (4), and the edge of the bottom is provided with a circular arc angle structure (5).
3. The membrane for a channel filter as claimed in claim 1, wherein the wavenumber of the waved structure at the opening is the same as the waved structure at the bottom.
4. Partition for a channel filter according to claim 1, characterized in that the wavenumber of the undulations at the openings is smaller than the wavenumber of the undulations at the bottom, and in that the ratio of the spacing between the undulations (9) of the bottom undulations to the spacing between the undulations (10) of the undulations at the openings is between 1 and 2 and 1.
5. The partition plate for a channel filter according to claim 3 or 4, wherein the ratio of the wave height of the bottom wavy structure to the wave height of the wavy structure at the opening is 1.
6. The partition for a channel filter according to claim 5, wherein the cross section of the partition (1) is triangular, an angle α is formed between the opening and the bottom of the partition (1), and the value of α is 1-6 °.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220054396 | 2022-01-11 | ||
| CN2022200543968 | 2022-01-11 |
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| Publication Number | Publication Date |
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| CN218046928U true CN218046928U (en) | 2022-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220621101.0U Active CN218046928U (en) | 2022-01-11 | 2022-03-22 | Partition plate for channel type filter |
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|---|---|
| CN (1) | CN218046928U (en) |
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- 2022-03-22 CN CN202220621101.0U patent/CN218046928U/en active Active
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Address after: 201401 Room 101, 1st floor, block B, No.1, Lane 123, Huancheng East Road, Fengxian District, Shanghai Patentee after: Feichao (Shanghai) New Materials Co.,Ltd. Address before: 201401 Room 101, 1st floor, block B, No.1, Lane 123, Huancheng East Road, Fengxian District, Shanghai Patentee before: Feichao (Shanghai) Environmental Technology Co.,Ltd. |
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