CN220968509U - Organic vapor membrane separation device - Google Patents
Organic vapor membrane separation device Download PDFInfo
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- CN220968509U CN220968509U CN202322164971.7U CN202322164971U CN220968509U CN 220968509 U CN220968509 U CN 220968509U CN 202322164971 U CN202322164971 U CN 202322164971U CN 220968509 U CN220968509 U CN 220968509U
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- fixedly connected
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- tank body
- separation membrane
- gas
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- 238000000926 separation method Methods 0.000 title claims abstract description 90
- 239000012528 membrane Substances 0.000 title claims abstract description 78
- 238000009826 distribution Methods 0.000 claims abstract description 21
- 230000008878 coupling Effects 0.000 claims abstract 6
- 238000010168 coupling process Methods 0.000 claims abstract 6
- 238000005859 coupling reaction Methods 0.000 claims abstract 6
- 238000009825 accumulation Methods 0.000 claims description 21
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract 4
- 235000017491 Bambusa tulda Nutrition 0.000 abstract 4
- 241001330002 Bambuseae Species 0.000 abstract 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract 4
- 239000011425 bamboo Substances 0.000 abstract 4
- 239000007789 gas Substances 0.000 description 44
- 238000005516 engineering process Methods 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- -1 polyethylene Polymers 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 231100000357 carcinogen Toxicity 0.000 description 1
- 239000003183 carcinogenic agent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000925 very toxic Toxicity 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Organic vapor membrane separator relates to filter equipment technical field, including the jar body of vertical setting, the inside coaxial rotation of jar body is equipped with the separation membrane section of thick bamboo, has the gas distribution pipe along vertical lift between the inner wall of separation membrane section of thick bamboo outer wall and jar body, along vertical rectangle fumarole of seting up towards the separation membrane section of thick bamboo on the tracheal lateral wall of gas distribution, vertical rigid coupling has the scraper on the inner wall of jar body, the scraper is with the outer wall friction contact of separation membrane section of thick bamboo, the slope of the interior bottom surface of jar body sets up, the bottom rigid coupling of jar body has the blowoff valve that is linked together with the interior bottom surface that is close to the below. The utility model solves the problems that the service life of the separation membrane is shortened and the separation efficiency of the separation membrane is reduced because the air inlet is used for air inlet to the fixed area of the separation membrane in the prior art, so that the area of the separation membrane is blocked first.
Description
Technical Field
The utility model relates to the technical field of filtering devices, in particular to an organic vapor membrane separation device.
Background
Many organic compounds are in the effluent gas of the petrochemical industry, which are very toxic and have been classified in part as carcinogens such as vinyl chloride, benzene, polycyclic aromatic hydrocarbons, and the like. The organic steam is inflammable and explosive, and the unsafe performance of the production enterprises is improved. In 2005, the annual production of China is 640 more than ten thousand tons of polyvinyl chloride, 530 more than ten thousand tons of polyethylene, 500 more than ten thousand tons of polypropylene, 1600 more than ten thousand tons of liquefied petroleum gas and 490 hundred million cubic meters of natural gas. The vapor permeation membrane technology is used for monomer recovery in polyethylene, polypropylene and polyvinyl chloride production, C3 and above in natural gas production and acid gas removal, and has particularly obvious advantages of liquefied gas recovery in liquefied gas production, and the like, and a plurality of sets of vapor permeation industrial devices are operated in China at present.
At present, a membrane separation technology is adopted for a treatment method of organic steam, the membrane separation technology is a novel chemical separation technology, and steam permeation is one of the membrane separation technologies. Compared with the traditional separation method, the invention has the remarkable advantages of low investment, low operation cost, high separation efficiency, easy scale, good expandability, convenient control and the like by using the membrane separation technology.
A patent with publication No. CN202605765U is disclosed in the prior art, and comprises a compressor, a cooler, a rubbery polymeric organic vapor membrane and a vacuum pump which are connected in sequence. The air-gasoline vapor mixture is compressed by a compressor, enters a cooler for cooling, then enters a rubber state polymerization organic vapor film for separation, after separation, a part of pollution-free waste vapor is directly discharged into the atmosphere, and the other part of permeation oil vapor is recycled by a vacuum pump.
The prior art, including the above patents, has also gradually revealed the disadvantages of this technology with use, mainly in the following aspects:
first, current organic vapor membrane separation device is fixed in the device at the intake pipe in the use, and the air inlet advances air to the fixed region of separation membrane for this region of separation membrane is first blocked up, leads to separation membrane life reduction and has reduced the separation efficiency of separation membrane.
Second, when organic vapor such as petroleum is separated by the conventional organic vapor membrane separation apparatus, the liquid converted into a viscous state after the temperature of the separated organic vapor is lowered adheres to the surface of the separation membrane, which results in clogging of the surface of the separation membrane and a reduction in the separation effect of the separation membrane.
In summary, it is clear that the prior art has inconvenience and defects in practical use, so that improvement is needed.
Disclosure of utility model
Aiming at the defects in the prior art, the utility model solves the problems that the service life of the separation membrane is shortened and the separation efficiency of the separation membrane is reduced because the air inlet is used for air inlet to the fixed area of the separation membrane in the prior art, so that the area of the separation membrane is blocked first.
In order to solve the problems, the utility model provides the following technical scheme:
The organic vapor membrane separation device comprises a vertically arranged tank body, a separation membrane cylinder is coaxially arranged in the tank body in a rotating way, a gas distribution pipe is vertically lifted between the outer wall of the separation membrane cylinder and the inner wall of the tank body, a rectangular gas spraying hole facing the separation membrane cylinder is vertically formed in the side wall of the gas distribution pipe,
A scraper is vertically and fixedly connected on the inner wall of the tank body, the scraper is in friction contact with the outer wall of the separation membrane cylinder,
The inner bottom surface of the tank body is obliquely arranged, and the bottom of the tank body is fixedly connected with a drain valve communicated with the inner bottom surface close to the lower part.
As an optimized scheme, the bottom of the tank body is fixedly connected with a pressure compensator communicated with the inner cavity of the tank body.
As an optimized scheme, the pressure compensator comprises an accumulation tank, a piston is slidably arranged in the accumulation tank, a pressure spring is arranged between the piston and the bottom of the accumulation tank, and the upper end of the accumulation tank is communicated with the inner cavity of the tank body through a valve body.
As an optimized scheme, the valve body comprises a gas pipe fixedly connected to the pressure accumulation tank, a gas inlet pipeline communicated with the pressure accumulation tank is arranged on the opposite inner wall of the gas pipe, a gas outlet pipeline communicated with the tank is also arranged on the opposite inner wall of the gas pipe, and a valve plate for sealing the gas inlet pipeline and the gas outlet pipeline is arranged in the gas pipe in a reciprocating sliding manner.
As an optimized scheme, the two ends of the gas pipe are fixedly connected with connecting rods respectively, tension springs are fixedly connected to the connecting rods, and the other ends of the tension springs are fixedly connected with the opposite end faces of the valve plate respectively.
As an optimized scheme, the upper end part of the separation membrane cylinder is fixedly connected with a closed ring, the inner ring of the closed ring is fixedly connected with an air outlet cylinder, and the upper end part of the air outlet cylinder penetrates through the tank body to extend to the outside.
As an optimized scheme, the outer wall of the air outlet cylinder above the tank body is fixedly connected with a toothed ring, the top of the tank body is fixedly connected with a driving machine, and the output end of the driving machine is fixedly connected with a gear meshed with the toothed ring.
As an optimized scheme, the top of the tank body is fixedly connected with a hard air inlet pipe extending to the inner cavity of the tank body, the lower end part of the hard air inlet pipe is connected with the upper port of the air distribution pipe through a telescopic corrugated pipe, and the lower port of the air distribution pipe is sealed.
As an optimized scheme, a support is fixedly connected to the side wall of the gas distribution pipe, a movable frame is horizontally fixedly connected to the support, a rotary table is rotatably arranged on the inner wall of the tank body, a driving column constrained in the movable frame is fixedly connected to the eccentric position of the rotary table, and a driving motor for driving the rotary table to rotate is fixedly connected to the outer wall of the tank body.
As an optimized scheme, a guide groove which is arranged in a T shape is vertically formed in the inner wall of the tank body, and a guide block which is restrained in the guide groove is fixedly connected to the support.
As an optimized scheme, the bottom end part of the separation membrane cylinder is fixedly connected with a bottom plate, the inner bottom surface of the tank body is fixedly connected with a support, and the bottom plate is rotatably supported on the support.
Compared with the prior art, the utility model has the beneficial effects that:
When the gas is filtered, a driving motor and a driving machine are started, the driving motor drives a turntable to rotate, the turntable drives a movable frame to drive a support to vertically reciprocate through a driving column, a movable plate drives a gas distribution pipe to vertically reciprocate, steam is uniformly sprayed to a separation membrane cylinder by utilizing rectangular gas spraying holes, the driving machine drives a gear and a toothed ring to rotate, the toothed ring drives an air outlet pipe and the separation membrane cylinder to rotate, and the gas is uniformly sprayed to the surface of the separation membrane cylinder, so that the service life of the separation membrane is prolonged;
When the separation membrane rotates, the scraper cleans viscous liquid attached to the surface of the separation membrane, and the cleaned liquid is discharged out of the device through the blow-down valve, so that the function of timely cleaning the liquid on the surface of the separation membrane and improving the separation efficiency of the separation membrane is realized;
When the internal atmospheric pressure of jar is great, the valve plate moves to the piston direction, in the device gas enters into the accumulator jar through the pipeline of admitting air, the valve plate moves to the bottom direction, in the gas enters into the accumulator jar, realize reducing jar internal atmospheric pressure, when the atmospheric pressure is less, the piston is under the reaction force of pressure spring, release the gas in the accumulator jar, the gaseous valve plate of promotion upwards moves, the gas enters into jar internal through the pipeline of giving vent to anger, the dynamic adjustment to jar internal atmospheric pressure has been realized, control is in suitable range, improve the separation speed and the function of separation effect of separation membrane.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic diagram of the structure of the present utility model;
fig. 2 is a schematic structural view of the pressure compensator of the present utility model.
In the figure: 1-a tank body; 2-separating a membrane cartridge; 3-air distribution pipes; 4-rectangular air injection holes; 5-a bracket; 6-a turntable; 7-moving the frame; 8-driving a column; 9-driving a motor; 10-a guide groove; 11-a bellows; 12-a hard air inlet pipe; 13-scraping plates; 14-a blow-down valve; 15-an accumulator tank; 16-gas delivery pipe; 17-a bottom plate; 18-supporting seats; 19-closing the ring; 20-an air outlet cylinder; 21-a toothed ring; 22-drive machine; 23-gear; 24-piston; 25-a compression spring; 26-an air inlet pipeline; 27-an outlet pipe; 28-connecting rods; 29-tension spring.
Detailed Description
Embodiments of the technical scheme of the present utility model will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and thus are merely examples, and are not intended to limit the scope of the present utility model.
As shown in fig. 1 and 2, the organic vapor membrane separation device comprises a tank body 1 which is vertically arranged, a separation membrane cylinder 2 is coaxially arranged in the tank body 1 in a rotating way, a gas distribution pipe 3 is vertically lifted between the outer wall of the separation membrane cylinder 2 and the inner wall of the tank body 1, a rectangular gas injection hole 4 facing the separation membrane cylinder 2 is vertically arranged on the side wall of the gas distribution pipe 3,
A scraper 13 is vertically and fixedly connected on the inner wall of the tank body 1, the scraper 13 is in friction contact with the outer wall of the separation membrane cylinder 2,
The inner bottom surface of the tank body 1 is obliquely arranged, and the bottom of the tank body 1 is fixedly connected with a blow-down valve 14 communicated with the inner bottom surface close to the lower part.
The bottom of the tank body 1 is fixedly connected with a pressure compensator communicated with the inner cavity of the tank body.
The pressure compensator comprises a pressure accumulation tank 15, a piston 24 is arranged in the pressure accumulation tank 15 in a sliding manner, a pressure spring 25 is arranged between the piston 24 and the bottom of the pressure accumulation tank 15, and the upper end part of the pressure accumulation tank 15 is communicated with the inner cavity of the tank body 1 through a valve body.
The valve body comprises a gas pipe 16 fixedly connected to the pressure accumulation tank 15, a gas inlet pipeline 26 communicated with the pressure accumulation tank 15 is arranged on the opposite inner wall of the gas pipe 16, a gas outlet pipeline 27 communicated with the tank body 1 is also arranged on the opposite inner wall of the gas pipe 16, and a valve plate for sealing the gas inlet pipeline 26 and the gas outlet pipeline 27 is arranged in the gas pipe 16 in a reciprocating sliding manner.
The two ends of the gas pipe 16 are fixedly connected with connecting rods 28 respectively, the connecting rods 28 are fixedly connected with tension springs 29, and the other ends of the tension springs 29 are fixedly connected with the opposite end surfaces of the valve plates respectively.
The upper end part of the separation membrane cylinder 2 is fixedly connected with a closed ring 19, the inner ring of the closed ring 19 is fixedly connected with an air outlet cylinder 20, and the upper end part of the air outlet cylinder 20 penetrates through the tank body 1 to extend to the outside.
The outer wall of the air outlet cylinder 20 above the tank body 1 is fixedly connected with a toothed ring 21, the top of the tank body 1 is fixedly connected with a driving machine 22, and the output end of the driving machine 22 is fixedly connected with a gear 23 meshed with the toothed ring 21.
The top of the tank body 1 is fixedly connected with a hard air inlet pipe 12 extending to the inner cavity of the tank body, the lower end part of the hard air inlet pipe 12 is connected with the upper port of the air distribution pipe 3 through a telescopic corrugated pipe 11, and the lower port of the air distribution pipe 3 is sealed.
The side wall of the gas distribution pipe 3 is fixedly connected with a support 5, the support 5 is horizontally fixedly connected with a movable frame 7, a rotary table 6 is rotatably arranged on the inner wall of the tank body 1, a driving column 8 constrained in the movable frame 7 is fixedly connected on the eccentric position of the rotary table 6, and a driving motor 9 for driving the rotary table 6 to rotate is fixedly connected on the outer wall of the tank body 1.
The inner wall of the tank body 1 is vertically provided with a guide groove 10 which is arranged in a T shape, and the bracket 5 is fixedly connected with a guide block which is restrained in the guide groove 10.
The bottom plate 17 is fixedly connected with the lower end part of the separation membrane cylinder 2, the support 18 is fixedly connected with the inner bottom surface of the tank body 1, and the bottom plate 17 is rotatably supported on the support 18.
The working principle of the device is as follows:
When the gas is filtered, the driving motor 9 and the driving machine 22 are started, the driving motor 9 drives the turntable 6 to rotate, the turntable 6 drives the movable frame 7 to drive the bracket 5 to vertically reciprocate through the driving column 8, the movable plate drives the gas distribution pipe 3 to vertically reciprocate, the rectangular gas spraying holes 4 are utilized to uniformly spray the steam to the separation membrane cylinder 2, the driving machine 22 drives the gear 23 and the toothed ring 21 to rotate, the toothed ring 21 drives the gas outlet pipe and the separation membrane cylinder 2 to rotate, the uniform spraying of the gas to the surface of the separation membrane cylinder 2 is realized, and the service life of the separation membrane is prolonged;
When the separation membrane rotates, the scraper 13 cleans viscous liquid attached to the surface of the separation membrane, and the cleaned liquid is discharged out of the device through the blow-down valve 14, so that the function of timely cleaning the liquid on the surface of the separation membrane and improving the separation efficiency of the separation membrane is realized;
When the air pressure in the tank body 1 is large, the valve plate moves towards the direction of the piston 24, air in the device enters the pressure accumulation tank 15 through the air inlet pipeline 26, the valve plate moves towards the bottom direction, the air enters the pressure accumulation tank 15, the air pressure in the tank body 1 is reduced, when the air pressure is small, the piston 24 pushes out the air in the pressure accumulation tank 15 under the reaction force of the pressure spring 25, the air pushes the valve plate to move upwards, the air enters the tank body 1 through the air outlet pipeline 27, the dynamic adjustment of the air pressure in the tank body 1 is realized, the control is in a proper range, and the separation speed and the separation effect of the separation membrane are improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model, and are intended to be included within the scope of the appended claims and description.
Claims (10)
1. An organic vapor film separation device characterized in that: comprises a tank body (1) which is vertically arranged, a separation membrane cylinder (2) is coaxially arranged in the tank body (1) in a rotating way, a gas distribution pipe (3) is vertically lifted between the outer wall of the separation membrane cylinder (2) and the inner wall of the tank body (1), a rectangular gas injection hole (4) which faces the separation membrane cylinder (2) is vertically formed in the side wall of the gas distribution pipe (3),
A scraper (13) is vertically and fixedly connected on the inner wall of the tank body (1), the scraper (13) is in friction contact with the outer wall of the separation membrane cylinder (2),
The inner bottom surface of the tank body (1) is obliquely arranged, and a drain valve (14) communicated with the inner bottom surface close to the lower part is fixedly connected to the bottom of the tank body (1).
2. The organic vapor membrane separation device according to claim 1, wherein: the bottom of the tank body (1) is fixedly connected with a pressure compensator communicated with the inner cavity of the tank body.
3. The organic vapor membrane separation device according to claim 2, wherein: the pressure compensator comprises a pressure accumulation tank (15), a piston (24) is arranged in the pressure accumulation tank (15) in a sliding mode, a pressure spring (25) is arranged between the piston (24) and the bottom of the pressure accumulation tank (15), and the upper end portion of the pressure accumulation tank (15) is communicated with the inner cavity of the tank body (1) through a valve body.
4. An organic vapor membrane separation device according to claim 3, wherein: the valve body comprises a gas pipe (16) fixedly connected to the pressure accumulation tank (15), a gas inlet pipeline (26) communicated with the pressure accumulation tank (15) is arranged on the opposite inner wall of the gas pipe (16), a gas outlet pipeline (27) communicated with the tank body (1) is also arranged on the opposite inner wall of the gas pipe (16), and a valve plate for sealing the gas inlet pipeline (26) and the gas outlet pipeline (27) is arranged in the gas pipe (16) in a reciprocating sliding manner.
5. The organic vapor membrane separation device according to claim 4, wherein: the two ends of the gas pipe (16) are fixedly connected with connecting rods (28) respectively, the connecting rods (28) are fixedly connected with tension springs (29), and the other ends of the tension springs (29) are fixedly connected with the opposite end faces of the valve plates respectively.
6. The organic vapor membrane separation device according to claim 5, wherein: the upper end part of the separation membrane cylinder (2) is fixedly connected with a closed ring (19), the inner ring of the closed ring (19) is fixedly connected with an air outlet cylinder (20), and the upper end part of the air outlet cylinder (20) penetrates through the tank body (1) to extend to the outside.
7. The organic vapor membrane separation device according to claim 6, wherein: the gas outlet cylinder (20) is positioned on the outer wall above the tank body (1) and fixedly connected with a toothed ring (21), the top of the tank body (1) is fixedly connected with a driving machine (22), and the output end of the driving machine (22) is fixedly connected with a gear (23) meshed with the toothed ring (21).
8. The organic vapor membrane separation device according to claim 7, wherein: the top rigid coupling of jar body (1) has stereoplasm intake pipe (12) that extend to its inner chamber, the lower tip of stereoplasm intake pipe (12) is through flexible bellows (11) connection the last port of gas distribution pipe (3), the lower port seal setting of gas distribution pipe (3).
9. The organic vapor membrane separation device according to claim 8, wherein: the utility model discloses a jar, including jar body (1), gas distribution pipe (3), support (5) are fixedly connected with on the lateral wall of gas distribution pipe (3), horizontal rigid coupling has movable frame (7) on support (5), rotate on the inner wall of jar body (1) and be equipped with carousel (6), the rigid coupling has restraint in on the eccentric position of carousel (6) drive post (8) in movable frame (7), rigid coupling has drive carousel (6) pivoted driving motor (9) on the outer wall of jar body (1).
10. The organic vapor membrane separation device according to claim 9, wherein: guide grooves (10) which are arranged in a T shape are vertically formed in the inner wall of the tank body (1), and guide blocks which are restrained in the guide grooves (10) are fixedly connected to the support (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322164971.7U CN220968509U (en) | 2023-08-12 | 2023-08-12 | Organic vapor membrane separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322164971.7U CN220968509U (en) | 2023-08-12 | 2023-08-12 | Organic vapor membrane separation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220968509U true CN220968509U (en) | 2024-05-17 |
Family
ID=91062924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322164971.7U Active CN220968509U (en) | 2023-08-12 | 2023-08-12 | Organic vapor membrane separation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220968509U (en) |
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2023
- 2023-08-12 CN CN202322164971.7U patent/CN220968509U/en active Active
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