CN219838810U - Double-layer membrane separation device - Google Patents
Double-layer membrane separation device Download PDFInfo
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- CN219838810U CN219838810U CN202320229563.2U CN202320229563U CN219838810U CN 219838810 U CN219838810 U CN 219838810U CN 202320229563 U CN202320229563 U CN 202320229563U CN 219838810 U CN219838810 U CN 219838810U
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- rotating member
- material belt
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- positioning
- membrane separation
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- 238000000926 separation method Methods 0.000 title claims abstract description 30
- 239000012528 membrane Substances 0.000 title claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 115
- 230000007246 mechanism Effects 0.000 claims abstract description 34
- 230000002093 peripheral effect Effects 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 12
- 230000008569 process Effects 0.000 claims abstract description 11
- 238000003825 pressing Methods 0.000 claims description 34
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000004378 air conditioning Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000009825 accumulation Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 10
- 210000004027 cell Anatomy 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003012 bilayer membrane Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 229920002799 BoPET Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000007723 transport mechanism Effects 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model relates to a double-layer membrane separation device, wherein a fixed-length conveying mechanism comprises a driving assembly and a rotating piece, a plurality of positioning pins extending along the radial direction of the rotating piece are arranged on the peripheral surface of the rotating piece, and the positioning pins are arranged at equal intervals along the circumferential direction of the rotating piece. The material belt to be separated is provided with a plurality of positioning holes at equal intervals in the extending direction in advance, and the distance between two adjacent positioning holes is equal to the distance between two adjacent positioning pins in the circumferential direction of the rotating piece. When the fixed-length conveying is carried out on the material belt, the material belt is firstly wound around the rotating piece, the positioning hole is sleeved on the positioning pin, and then the driving assembly drives the rotating piece to rotate. Along with the rotation of the rotating piece, a plurality of locating pins can be sequentially inserted into the locating holes of the material belt. It can be seen that the material belt conveying process is positioned in real time by the cooperation of the positioning holes and the positioning pins. Therefore, the double-layer membrane separation device can not cause error accumulation in the operation process, so that the error can be remarkably reduced.
Description
Technical Field
The utility model relates to the technical field of fuel cells, in particular to a double-layer membrane separation device.
Background
In the manufacture of fuel cell membrane electrodes, separation of the bilayer membrane is often involved. For example, the frame with the carrier film and the five-in-one material tape all need to be torn off before entering the next working procedure. Based on the characteristics of the membrane electrode manufacturing process, various material belts are conveyed in a stepping mode in the conveying process, namely, the fixed length is conveyed each time.
At present, fixed-length conveying is generally realized on a material belt by adopting modes such as clamping roller clamping conveying and the like, and the length of each conveying of the material belt is determined by the rotation angle of the clamping roller. However, errors are difficult to avoid in the conveying process, and accumulated errors generated after long-time operation are large. The accumulated error will affect the precision of the material belt conveying, so that the position of the material belt is deviated, and the subsequent processing is adversely affected.
Disclosure of Invention
In view of the above, it is necessary to provide a double-layer membrane separation device capable of significantly reducing errors in the above-described problems.
A double membrane separation device comprising:
the fixed-length conveying mechanism comprises a driving assembly and a rotating piece, wherein the driving assembly is in transmission connection with the rotating piece and can drive the rotating piece to rotate around the axis of the rotating piece, a plurality of positioning pins extending along the radial direction of the rotating piece are arranged on the peripheral surface of the rotating piece, and the positioning pins are arranged at equal intervals along the circumferential direction of the rotating piece; a kind of electronic device with high-pressure air-conditioning system
The separating mechanism comprises a stripping roller arranged at the downstream of the fixed-length conveying mechanism;
wherein the rotating member rotates to drive the material belt which winds the rotating member to be conveyed along a preset direction, a plurality of positioning pins are sequentially inserted into the positioning holes which are arranged at equal intervals along the extending direction of the material belt, in the process that the material belt conveyed along the preset direction is conveyed to the other direction by the stripping roller in a winding way, the first material film and the second material film of the material belt are separated at the stripping roller.
In one embodiment, the fixed-length conveying mechanism is provided with two rotating parts, the two rotating parts are coaxial and are arranged at intervals along the axial direction, a plurality of positioning pins are arranged on the peripheral surface of each rotating part, the material belt can pass through the two rotating parts, and the positioning pins on the two rotating parts can be respectively inserted into the positioning holes on the two side edges of the material belt.
In one embodiment, the rotating member is provided with two rows of positioning pins, the two rows of positioning pins are arranged at intervals along the axial direction of the rotating member, and the two rows of positioning pins can be respectively inserted into the positioning holes at the edges of two sides of the material belt.
In one embodiment, the drive assembly includes a drive motor.
In one embodiment, the fixed-length conveying mechanism further comprises a first pressing plate, the first pressing plate is arranged opposite to the outer peripheral surface of the rotating member, and the material belt which winds around the rotating member passes through between the first pressing plate and the outer peripheral surface of the rotating member.
In one embodiment, the first pressing plate is curved in a direction toward the outer circumferential surface of the rotating member.
In one embodiment, a clearance groove for forming clearance for the positioning pin is formed in the surface of the first pressing plate.
In one embodiment, the separating mechanism further comprises a roller, the second material film separated at the stripping roller can bypass the rotating member after being reversed by the roller, and the positioning hole on the second material film is sleeved on the positioning pin.
In one embodiment, the fixed-length conveying mechanism further comprises a second pressing plate, the second pressing plate is arranged opposite to the outer peripheral surface of the rotating piece, and the second material film which bypasses the rotating piece passes through the space between the second pressing plate and the outer peripheral surface of the rotating piece.
In one embodiment, the second pressing plate is curved in a direction toward the outer circumferential surface of the rotating member.
Above-mentioned bilayer membrane separator, the material area that waits to separate sets up a plurality of locating holes in advance in the equi-spaced in extending direction, and the distance between two adjacent locating holes equals with two adjacent locating pins in the distance of rotating piece circumference. When the fixed-length conveying is carried out on the material belt, the material belt is firstly wound around the rotating piece, the positioning hole is sleeved on the positioning pin, and then the driving assembly drives the rotating piece to rotate. Along with the rotation of the rotating piece, a plurality of locating pins can be sequentially inserted into the locating holes of the material belt. It can be seen that the material belt conveying process is positioned in real time by the cooperation of the positioning holes and the positioning pins. Therefore, the double-layer membrane separation device can not cause error accumulation in the material belt separation process, so that the error can be remarkably reduced.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a double membrane separation device in accordance with one embodiment of the present utility model;
FIG. 2 is a top view of the double membrane separation device of FIG. 1;
FIG. 3 is a top view of a web of material in one embodiment of the utility model;
fig. 4 is a front view of the web shown in fig. 3.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Referring to fig. 1, a double-layer membrane separation device 10 according to an embodiment of the present utility model includes a fixed-length conveying mechanism 100 and a separating mechanism 200.
The double-layer membrane separation device 10 is used for separating the material belt 20 shown in fig. 3 and 4, and the material belt 20 has a double-layer structure. Specifically, the tape 20 includes a second material film 22 and a first material film 21. For positioning, a plurality of positioning holes 201 are formed at equal intervals along the extending direction of the material belt 20 on both side edges in the width direction of the material belt 20, and the positioning holes 201 penetrate through the second material film 22 and the first material film 21. The second material film 22 may be a PET film, a plastic film, etc., and the first material film 21 may be a frame, a five-in-one component, etc. required for manufacturing the fuel cell. Note that the first material film 21 is not limited to a single-layer film, and may be a multilayer film.
The separating mechanism 200 is disposed downstream of the fixed-length conveying mechanism 100, and the fixed-length conveying mechanism 100 is configured to convey the material strips 20 to be separated toward the separating mechanism 200 along a preset direction, and convey the material strips 20 with a set length each time, i.e., fixed-length conveying. Thus, the separating mechanism 200 can separate the first material film 21 with a set length from the material belt 20 each time for preparing the fuel cell battery cell.
Of course, in other embodiments, the fixed-length conveying mechanism 100 may be used to convey the single-layer material belt 20 having the positioning hole 201 at a fixed length.
In this embodiment, the double-layer membrane separation device 10 further includes a mounting bracket 300, and the fixed-length conveying mechanism 100 and the separation mechanism 200 are both disposed on the mounting bracket 300.
Further, the fixed length delivery mechanism 100 according to an embodiment of the present utility model includes a driving assembly 110 and a rotating member 120. The driving assembly 110 is in transmission connection with the rotating member 120, and can drive the rotating member 120 to rotate around the axis of the rotating member. A plurality of positioning pins 121 extending in the radial direction of the rotary member 120 are provided on the outer circumferential surface of the rotary member 120, and the plurality of positioning pins 121 are provided at equal intervals in the circumferential direction of the rotary member 120.
The rotor 120 may have a disk shape, a roll shaft shape, or a wheel shape, and may rotate around its own rotation axis. Specifically, the rotating member 120 may be rotatably mounted on the mounting bracket 300 through a rotation shaft. The distance between the adjacent two positioning pins 121 in the circumferential direction of the rotating member 120 is equal to the distance between the adjacent two positioning holes 201 on the material tape 20 to be separated. The fixed-length conveying mechanism 100 is used for conveying the material belt 20 at a fixed length, and the material belt 20 can pass through the rotating member 120. The positioning hole 201 on the tape 20 can be sleeved on the positioning pin 121. The rotating member 120 rotates to drive the positioning pins 121 to sequentially insert into the positioning holes 201 of the material belt 20, and drive the material belt 20 to be conveyed along a preset direction.
The positioning pin 121 on the rotating member 120 is meshed with the positioning hole 201 on the material belt 20, and the rotating member 120 is in transmission connection with the material belt 20, so that the material belt 20 can be conveyed downstream under the driving of the rotating member 120 along with the rotation of the rotating member 120. The driving assembly 110 drives the rotating member 120 to rotate in a stepping rather than continuous manner, and the length of the material belt 20 can be controlled by controlling the angle or the number of turns of each rotation of the rotating member 120, so as to realize fixed-length conveying.
In particular, in this embodiment, the drive assembly 110 includes a drive motor. The rotation angle and the number of turns of the driving motor are conveniently detected, and the stopping position is judged through the origin of the driving motor when each rotation is performed, so that the rotation angle or the number of turns of the rotating member 120 can be conveniently and accurately controlled.
During downstream transport of the material web 20, the positioning pins 121 on the rotating member 120 can be kept engaged with the positioning holes 201 on the material web 20, i.e. the material web 20 can be positioned in real time during transport by the cooperation of the positioning holes 201 and the positioning pins 121. Even if one or a plurality of positioning holes 201 cannot be smoothly sleeved with the positioning pins 121, the adjustment can be quickly performed. Therefore, the fixed-length transport mechanism 100 does not cause accumulation of errors during operation, and errors can be significantly reduced.
Referring to fig. 2, in the embodiment, the fixed-length conveying mechanism 100 is provided with two rotating members 120, the two rotating members 120 are coaxially and axially spaced apart, a plurality of positioning pins 121 are disposed on the outer peripheral surface of each rotating member 120, the material belt can pass through the two rotating members 120, and the positioning pins 121 on the two rotating members 120 can be respectively inserted into the positioning holes 201 on two side edges of the material belt.
The two rotating members 120 can be connected through a rotating shaft, so that synchronous rotation is realized. The two rotating members 120 are formed with two rows of positioning pins 121, and the two rows of positioning pins 121 can be engaged with positioning holes 201 at both side edges in the width direction of the material tape 20, respectively. Therefore, when the rotating member 120 drives the belt 20 to be conveyed downstream, the force applied to the belt 20 is more balanced, so that the conveying process of the belt 20 is smoother and more stable. At this time, the rotator 120 can be formed in a disk shape having a small thickness, and has advantages of light weight and low cost.
In addition, in another embodiment, two rows of positioning pins 121 are disposed on the rotating member 120, the two rows of positioning pins 121 are disposed at intervals along the axial direction of the rotating member 120, and the two rows of positioning pins 121 can be respectively inserted into the positioning holes 201 at two side edges of the material belt. At this time, the rotator 120 may be provided in a roll shaft shape having a certain length.
In this embodiment, the fixed-length conveying mechanism 100 further includes a first pressing plate 130, where the first pressing plate 130 is disposed opposite to the outer peripheral surface of the rotating member 120, and the material belt 20 that passes around the rotating member 120 passes between the first pressing plate 130 and the outer peripheral surface of the rotating member 120. The first pressing plate 130 can perform a limiting and guiding function on the material belt 20, and the positioning hole 201 of the material belt 20 wound around the rotating member 120 can be reliably sleeved on the positioning pin 121 and is not easy to fall out under the action of the first pressing plate 130.
Further, in the present embodiment, the first pressing plate 130 is curved in a direction toward the outer circumferential surface of the rotary member 120. Therefore, the shape of the first pressing plate 130 is more matched with the shape of the outer peripheral surface of the rotating member 120, so that the limiting and guiding effects on the material belt 20 are better.
Further, in the present embodiment, a avoidance groove 131 for forming avoidance for the positioning pin 121 is formed on the surface of the first pressing plate 130. In order to better limit the material belt 20, the interval between the first pressing plate 130 and the outer circumferential surface of the rotating member 120 is smaller. The arrangement of the clearance groove 131 can prevent the positioning pin 121 from rubbing against the first pressing plate 130 during the rotation of the rotator 120, thereby protecting the positioning pin 121.
Referring again to fig. 1, the separating mechanism 200 includes a peeling roller 210 disposed downstream of the fixed-length conveying mechanism 100, and the first material film 21 and the second material film 22 of the material tape 20 are separated at the peeling roller 210 during the process that the material tape 20 conveyed along the preset direction is conveyed in the other direction by the peeling roller 210.
When the material strip 20 is introduced into the separating mechanism 200, the material film 22 at the leading end of the material strip 20 may be manually separated from the second material film 22. The separated first material film 21 continues to be conveyed along a preset direction to be rolled or enter the next process, and the separated second material film 22 is received by a receiving component (not shown), and the receiving component can adopt a receiving roller.
The stripper roll 210 provides support to the web 20 and the stripper roll 210 is typically of a smaller diameter. The web 20 can be significantly bent as it passes around the stripping roller 210, thereby forming a large stripping angle. Under the traction of the material receiving assembly, the second material film 22 and the first material film 21 can be automatically separated.
In this embodiment, the separating mechanism 200 further includes a passing roller 220, the second material film 22 separated at the peeling roller 210 can pass through the rotating member 120 after being reversed by the roller 220, and the positioning hole 201 on the second material film 22 is sleeved on the positioning pin 121.
The second material film 22 separated from the first material film 21 is also provided with a positioning hole 201, and by engaging the positioning hole 201 of the second material film 22 with the positioning pin 121 of the rotating member 120, the second material film 22 can be conveyed downstream by the driving of the rotating member 120, thereby preventing the second material film 22 from scattering. At this time, the driving force of the second material film 22 to the material receiving assembly is provided by the driving assembly 110, and the conveying speed of the second material film 22 and the material belt 20 can be kept consistent, so that the tension in the separation process of the material belt 20 can be conveniently controlled.
In addition, in the present embodiment, the fixed-length conveying mechanism 100 further includes a second pressing plate 140, where the second pressing plate 140 is disposed opposite to the outer peripheral surface of the rotating member 120, and the second material film 22 that passes around the rotating member 120 passes between the second pressing plate 140 and the outer peripheral surface of the rotating member 120. In this way, the second pressing plate 140 can perform a limiting and guiding function on the second material film 22, so that the positioning hole 201 of the second material film 22 passing through the rotating member 120 is reliably sleeved on the positioning pin 121 and is not easy to be separated.
Further, in the present embodiment, the second pressing plate 140 is curved in a direction toward the outer circumferential surface of the rotary member 120. Therefore, the shape of the second pressing plate 140 is more matched with the shape of the outer peripheral surface of the rotating member 120, so that the limiting and guiding effects on the second material film 22 are better.
In the above-described double-layer membrane separation device 10, the material strips 20 to be separated are provided with the plurality of positioning holes 201 at equal intervals in the extending direction in advance, and the distance between the adjacent two positioning holes 201 is equal to the distance between the adjacent two positioning pins 121 in the circumferential direction of the rotating member 120. When the material belt 20 is conveyed in a fixed length, the material belt 20 is firstly wound around the rotating member 120, the positioning hole 201 is sleeved on the positioning pin 121, and then the driving assembly 110 drives the rotating member 120 to rotate. As the rotator 120 rotates, the plurality of positioning pins 121 can be sequentially inserted into the positioning holes 201 of the material tape 20. It can be seen that the feeding process of the material strip 20 is to be performed by the positioning holes 201 and the positioning pins 121 in real time. Therefore, the above-described double-layer membrane separation device 10 does not cause accumulation of errors during operation, so that errors can be significantly reduced.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (10)
1. A double membrane separation device, comprising:
the fixed-length conveying mechanism comprises a driving assembly and a rotating piece, wherein the driving assembly is in transmission connection with the rotating piece and can drive the rotating piece to rotate around the axis of the rotating piece, a plurality of positioning pins extending along the radial direction of the rotating piece are arranged on the peripheral surface of the rotating piece, and the positioning pins are arranged at equal intervals along the circumferential direction of the rotating piece; a kind of electronic device with high-pressure air-conditioning system
The separating mechanism comprises a stripping roller arranged at the downstream of the fixed-length conveying mechanism;
wherein the rotating member rotates to drive the material belt which winds the rotating member to be conveyed along a preset direction, a plurality of positioning pins are sequentially inserted into the positioning holes which are arranged at equal intervals along the extending direction of the material belt, in the process that the material belt conveyed along the preset direction is conveyed to the other direction by the stripping roller in a winding way, the first material film and the second material film of the material belt are separated at the stripping roller.
2. The double-layer membrane separation device according to claim 1, wherein the fixed-length conveying mechanism is provided with two rotating members, the two rotating members are coaxial and are arranged at intervals along the axial direction, a plurality of positioning pins are arranged on the outer peripheral surface of each rotating member, the material belt can pass through the two rotating members, and the positioning pins on the two rotating members can be respectively inserted into the positioning holes on the two side edges of the material belt.
3. The double-layer membrane separation device according to claim 1, wherein two rows of positioning pins are arranged on the rotating member, the two rows of positioning pins are arranged at intervals along the axial direction of the rotating member, and the two rows of positioning pins can be respectively inserted into the positioning holes at two side edges of the material belt.
4. The double membrane separation device of claim 1, wherein the drive assembly comprises a drive motor.
5. The double-layer membrane separation device according to claim 1, wherein the fixed-length conveying mechanism further comprises a first pressing plate, the first pressing plate is disposed opposite to the outer peripheral surface of the rotating member, and the material belt passing around the rotating member passes between the first pressing plate and the outer peripheral surface of the rotating member.
6. The double-layered membrane separation apparatus according to claim 5, wherein the first pressing plate is curved in a direction toward an outer peripheral surface of the rotating member.
7. The double-layer membrane separation device according to claim 5, wherein a clearance groove for forming clearance for the positioning pin is formed in a surface of the first pressing plate.
8. The double-layer membrane separation device according to claim 1, wherein the separation mechanism further comprises a passing roller, the second material membrane separated at the peeling roller can pass through the rotating member after being reversed by the passing roller, and the positioning hole on the second material membrane is sleeved on the positioning pin.
9. The double-layer membrane separation device according to claim 8, wherein the fixed-length conveying mechanism further comprises a second pressing plate, the second pressing plate is disposed opposite to the outer peripheral surface of the rotating member, and the second material membrane passing around the rotating member passes between the second pressing plate and the outer peripheral surface of the rotating member.
10. The double-layered membrane separation apparatus according to claim 9, wherein the second pressing plate is curved in a direction toward the outer peripheral surface of the rotating member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320229563.2U CN219838810U (en) | 2023-02-14 | 2023-02-14 | Double-layer membrane separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320229563.2U CN219838810U (en) | 2023-02-14 | 2023-02-14 | Double-layer membrane separation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219838810U true CN219838810U (en) | 2023-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320229563.2U Active CN219838810U (en) | 2023-02-14 | 2023-02-14 | Double-layer membrane separation device |
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| Country | Link |
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| CN (1) | CN219838810U (en) |
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2023
- 2023-02-14 CN CN202320229563.2U patent/CN219838810U/en active Active
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