CN110180334A - Finned gas separation membrane module - Google Patents
Finned gas separation membrane module Download PDFInfo
- Publication number
- CN110180334A CN110180334A CN201910591630.3A CN201910591630A CN110180334A CN 110180334 A CN110180334 A CN 110180334A CN 201910591630 A CN201910591630 A CN 201910591630A CN 110180334 A CN110180334 A CN 110180334A
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- Prior art keywords
- film bag
- gas
- membrane module
- manifold trunk
- infiltration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000012528 membrane Substances 0.000 title claims abstract description 57
- 238000000926 separation method Methods 0.000 title claims abstract description 31
- 230000008595 infiltration Effects 0.000 claims abstract description 46
- 238000001764 infiltration Methods 0.000 claims abstract description 46
- 239000012466 permeate Substances 0.000 claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims abstract description 4
- 230000001070 adhesive effect Effects 0.000 claims abstract description 4
- 125000006850 spacer group Chemical group 0.000 claims abstract description 4
- 238000000605 extraction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 77
- 238000000034 method Methods 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/22—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by diffusion
- B01D2053/221—Devices
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention relates to membrane gas separation technology field more particularly to a kind of finned gas separation membrane modules.The present invention includes: that infiltration gas draws interface tube, film bag and infiltration gas manifold trunk；Permeating gas manifold trunk is hollow tubular structure, both ends open or open at one end, and open end oral area connection infiltration gas draws interface tube；It permeates and is uniformly provided with several elongated slits for being used to install film bag on the tube wall of gas manifold trunk；Film bag is that three bandings made of after two rectangular plate films or a rectangle diaphragm folding close sack assembling structure open on one side；Open side is inserted into slit, and film bag outside and inner slit walls adhesive closure are tight；Any spacer such as flow-guiding screen is not provided between each film bag.Technical solution of the present invention, which solves flow-guiding screen and demarcation plate itself in the prior art, can generate resistance to air-flow, and Membrane Gas Separation Processes are using film two sides partial pressure difference as motive force, the problem of circulating resistance will lead to operting differential pressure reduction, influence membrane separating effect.
Description
Technical field
The present invention relates to membrane gas separation technology field more particularly to a kind of finned gas separation membrane modules.
Background technique
Membrane gas isolation technics compared with traditional cryogenic rectification, PSA Technology have it is with low investment, high-efficient,
The advantages such as equipment size is small, easy to operate, room temperature works, operating cost is low, are more and more widely used in recent years.
Gas separation frequently with film point have plate membrane and hollow-fibre membrane by shape, plate membrane is compared to hollow-fibre membrane
Structure is simple, production cost is low, applies in fields such as air separation, petroleum vapor recovery, volatile organic matter (VOCs) recycling and administrations
Extensively.Frequently with plate film assembly structure have a rolling, stacked, three kinds of plate and frame, the membrane module of above structure have one it is common
The characteristics of be that diaphragm is made to film bag one by one, multiple film bags roll on central tube or are stacked in the central tube through film bag
On.Obstruction air-flow is fitted closely between diaphragm in order to prevent, flow-guiding screen or demarcation plate are equipped between film bag and in film bag, plays branch
Support effect and the effect of runner is provided for unstripped gas and permeating airflow are logical.Plate and frame module is since structure is complicated and unit volume
Interior filling membrane area is smaller and seldom uses.There is flow-guiding screen film bag and in film bag for rolled film, permeates gas in film bag
It is longer to import central tube runner；Although permeating airflow road is shorter in film bag for stacked film, demarcation plate is reduced between film bag
Effective membrane area.Flow-guiding screen and demarcation plate itself can generate resistance to air-flow, and Membrane Gas Separation Processes are with film two sides gas
Partial pressure difference is motive force, and circulating resistance will lead to operting differential pressure reduction, influence membrane separating effect.In addition, flow-guiding screen and separation
Plate is bonded position with diaphragm also and will cause the reduction of effective membrane area.Raw gas pressure it is lower or infiltration survey take out negative pressure operating condition
Under, above-mentioned factor is especially pronounced to the negative effect of membrane separating property.By taking embrane method oxygen enriching as an example, usual feed pressure is
10-50KPa, infiltration atmospheric pressure are negative pressure 90-30KPa, even if two sides respectively generate 10KPa resistance drop, oxygen penetrates pushing away for film
Power will will decline 15-50%, add effective film space wastage, will seriously affect membrane module oxygen-rich concentration and gas production.
For it is above-mentioned the problems of in the prior art, a kind of novel finned gas separation membrane group of researching and designing
Part, so that it is very necessary for overcoming the problems of in the prior art.
Summary of the invention
The flow-guiding screen and demarcation plate itself proposed according to the above-mentioned prior art can generate resistance to air-flow, and gaseous jet simulation
Process is using film two sides partial pressure difference as motive force, and circulating resistance will lead to operting differential pressure reduction, influences membrane separating effect
The technical issues of, and a kind of finned gas separation membrane module is provided, unstripped gas is effectively reduced and permeating airflow leads to resistance, to the greatest extent may be used
It can be reduced film pressure at both sides differential loss to become estranged effective film space wastage, play membrane module performance to greatest extent.
The technological means that the present invention uses is as follows:
A kind of finned gas separation membrane module includes: that infiltration gas draws interface tube, film bag and infiltration gas manifold trunk；It is multiple
Film bag is uniformly loaded on the outside of infiltration gas manifold trunk, the both ends of infiltration gas manifold trunk be respectively provided with infiltration gas extraction interface tube or
It is only equipped with infiltration gas at one end and draws interface tube；Infiltration gas manifold trunk is hollow tubular structure, and both ends open or one end are spacious
It opens, open end oral area connection infiltration gas draws interface tube；It permeates on the tube wall of gas manifold trunk and is uniformly provided with several elongated use
In the slit of installation film bag；Film bag is that three bandings made of after two rectangular plate films or a rectangle diaphragm folding close one
The sack assembling structure of side opening；Open side is inserted into slit, and film bag outside and inner slit walls adhesive closure are tight；Each film bag
Between be not provided with any spacer such as flow-guiding screen, by film bag itself rigidly keep film bag between gap.
Further, the cross section for permeating gas manifold trunk is the hollow tubular structure of round, rectangle or other shapes.
Further, the seam of the length on film bag opening side and slit length is isometric.
Further, film bag is internally provided with flow-guiding screen.
Further, slit is linear or waveform gap.
Further, slit is arranged in parallel in the axial direction or spiral is arranged in the axial direction.
Compared with the prior art, the invention has the following advantages that
1, finned gas separation membrane module provided by the invention, membrane module structure is simple, reliable, convenient for production；
2, finned gas separation membrane module provided by the invention does not set flow-guiding screen between film bag, unstripped gas circulating resistance damage
Lose minimum, effective film space wastage minimum；
3, finned gas separation membrane module provided by the invention, film bag permeating airflow road is short, and can be set as needed,
Permeating airflow is led to resistance to be limited in tolerance band；
4, finned gas separation membrane module provided by the invention, infiltration gas manifold trunk can provide strength support for membrane module
And installation positions, the loading membrane separator shell that can be convenient in practical application uses, convenient for assembly and disassembly replacement；
5, finned gas separation membrane module provided by the invention, in the low pressure operative employee using blower as raw material aerodynamic force
Under condition, for finned membrane module compared with rolled membrane module, the former can be improved 15% or more at per membrane area processing capacity；With stacked
Film compares, and effective membrane area improves 10% or more；
6, finned gas separation membrane module provided by the invention hinders without flow-guiding screen between film bag, makes the powder in air
The particulate matters such as dirt are difficult to gather blocking, to mitigate fouling membrane, prolonging service lifetime of film
7, finned gas separation membrane module provided by the invention is not directly contacted between film bag, can effectively avoid between film bag
The breakage of film caused by friction or the lost of life；
8, finned gas separation membrane module provided by the invention, environmental suitability is strong, can be Celsius at -50 DEG C to 50 of temperature
It is worked normally under degree, humidity 0-100%, heavy fog haze environment.
To sum up, apply the technical scheme of the present invention solve the prior art proposition flow-guiding screen and demarcation plate itself to air-flow
Resistance can be generated, and Membrane Gas Separation Processes are using film two sides partial pressure difference as motive force, circulating resistance will lead to work
The problem of pressure difference reduces, and influences membrane separating effect.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to do simply to introduce, it should be apparent that, the accompanying drawings in the following description is this hair
Bright some embodiments for those of ordinary skill in the art without any creative labor, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the perspective view that infiltration gas manifold trunk of the invention is circular tube structure；
Fig. 2 is the main view of Fig. 1；
Fig. 3 is the A-A view of Fig. 2；
Fig. 4 is the portion the B enlarged view of Fig. 3；
Fig. 5 is round infiltration gas manifold trunk structural schematic diagram；
Fig. 6 is the perspective view that infiltration gas manifold trunk of the invention is square structure；
Fig. 7 is that slit is the upward infiltration gas manifold trunk structural schematic diagram of spiral inclination；
Fig. 8 is that slit is wavy infiltration gas manifold trunk structural schematic diagram.
In figure: 1, permeating gas and draw interface tube 2, film bag 3, infiltration gas manifold trunk 4, slit 5, flow-guiding screen.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
It is only a part of the embodiment of the present invention, instead of all the embodiments.It is real to the description of at least one exemplary embodiment below
It is merely illustrative on border, never as to the present invention and its application or any restrictions used.Based on the reality in the present invention
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to
In the scope of protection of the invention.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to exemplary embodiments of the present invention.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be clear that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.Technology known for person of ordinary skill in the relevant, side
Method and equipment may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as authorizing explanation
A part of book.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, and
Not by way of limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label
Similar terms are indicated in following attached drawing with letter, therefore, once it is defined in a certain Xiang Yi attached drawing, then subsequent attached
It does not need that it is further discussed in figure.
In the description of the present invention, it is to be understood that, the noun of locality such as " front, rear, top, and bottom, left and right ", " it is laterally, vertical,
Vertically, orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes
System, is merely for convenience of description of the present invention and simplification of the description, in the absence of explanation to the contrary, these nouns of locality do not indicate that
It must have a particular orientation or be constructed and operated in a specific orientation with the device or element for implying signified, therefore cannot manage
Solution is limiting the scope of the invention: the noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under its device or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
The limitation of invention protection scope.
As shown, the present invention provides a kind of finned gas separation membrane module include: infiltration gas draw interface tube 1,
Film bag 2 and infiltration gas manifold trunk 3；The uniformly distributed outside loaded on infiltration gas manifold trunk 3 of multiple film bags 2, permeates the both ends of gas manifold trunk 3
An infiltration gas is respectively provided with to draw interface tube or be only equipped with infiltration gas extraction interface tube 1 at one end；It is hollow for permeating gas manifold trunk 3
Tubular structure, both ends open or open at one end, open end oral area connection infiltration gas draws interface tube 1；Permeate gas manifold trunk 3
Tube wall on be uniformly provided with several it is elongated for installing the slits 4 of film bag 2；Film bag 2 is by two rectangular plate films or one
Three bandings made of opening after rectangle diaphragm folds close sack assembling structure open on one side；Open side is inserted into slit 4, film bag 2
It is external tight with 4 inner wall adhesive closure of slit；Any spacer such as flow-guiding screen is not provided between each film bag 2, by film bag
Itself rigidly keeps gap between film bag.
The cross section for permeating gas manifold trunk 3 is the hollow tubular structure of round, rectangle or other shapes.
The length on the open side of film bag 2 and the seam length of slit 4 are isometric.
Film bag 2 is internally provided with flow-guiding screen 5.
Slit 4 is linear or waveform gap.
Slit 4 is arranged in parallel in the axial direction or spiral is arranged in the axial direction.
Embodiment 1
It as shown in Figs. 1-5, is round tube the present invention provides a kind of infiltration gas manifold trunk 3, tube wall is provided with several flat with axis
The equally distributed straight slit of row, film bag is as the fin that slit stretches out from tube wall is with radial arrangement.Unstripped gas is through blower
(or compressor, air pump), which is pushed, flows through membrane module, unstripped gas from film bag 2 and 2 gap of film bag along infiltration 3 axis direction of gas manifold trunk
(outside film bag) pressure is higher than pressure in film bag, and using pressure difference inside and outside film bag as motive force, gas is to low-pressure side (in film bag)
Infiltration, the gas for penetrating film enter in each film bag, collect into infiltration gas manifold trunk, and infiltration gas fairlead 1 connects vacuum
Pump draws infiltration gas, and the gas for not penetrating film is drained from the film bag other end, and the faster gas of infiltration rate converges in infiltration gas
Collector enrichment, the slower gas of infiltration rate are enriched in feed side outlet.By taking air as an example, the faster oxygen of infiltration rate exists
The enrichment of gas manifold trunk is permeated, the slower nitrogen of infiltration rate is enriched in feed side outlet.Infiltration gas fairlead 1 can permeate
3 both ends of gas manifold trunk are respectively provided with, and can also be only arranged at one end, can be drawn, can also be drawn from side wall along axis.
Embodiment 2
As shown in fig. 6, (on the basis of embodiment 1) is square tube the present invention also provides a kind of infiltration gas manifold trunk 3,
One side wall of square tube (or two opposite sides are symmetric) is provided with several be uniformly distributed and mutually along its length
Parallel straight slit, film bag is such as the fin parallelly distribute on that slit stretches out from tube wall.Concrete operating principle is the same as embodiment 1.
Embodiment 3
As shown in fig. 7, (on the basis of embodiment 1), membrane module structure is similar to Example 1, but permeates gas manifold trunk
Slit is not parallel with axis, but along tube wall helically line, and corresponding film bag also helically fin makes unstripped gas form turbulent flow
To improve air flow method situation of the flow of feed gas through component when, membrane separating property is more fully played, while film bag can be improved
Rigidity.
Embodiment 4
As shown in figure 8, (on the basis of embodiment 1) membrane module structure is similar to Example 2, but permeate gas manifold trunk
Slit not instead of straight line is in wave along tube wall length direction, and corresponding film bag is also in wave fin, forms unstripped gas
Turbulent flow more fully plays membrane separating property, can be improved simultaneously to improve air flow method situation of the flow of feed gas through component when
Film bag rigidity.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (6)
1. a kind of finned gas separation membrane module, which is characterized in that the finned gas separation membrane module includes: infiltration
Gas draws interface tube (1), film bag (2) and infiltration gas manifold trunk (3)；Uniformly distributed be loaded on of multiple film bags (2) permeates gas manifold trunk (3)
Outside, the both ends of infiltration gas manifold trunk (3) are respectively provided with an infiltration gas and draw interface tube or be only equipped with infiltration gas extraction at one end
Interface tube (1)；
The infiltration gas manifold trunk (3) is hollow tubular structure, both ends open or open at one end, the connection of open end oral area
It permeates gas and draws interface tube (1)；Permeate on the tube wall of gas manifold trunk (3) be uniformly provided with several it is elongated for installing film bag
(2) slit (4)；
The film bag (2) be after being folded two rectangular plate films or rectangle diaphragm made of three bandings close and open on one side
The sack assembling structure of mouth；Open side is inserted into slit (4), and film bag (2) is external tight with slit (4) inner wall adhesive closure；
It is not provided with any spacer such as flow-guiding screen between each film bag (2), gap between film bag is rigidly kept by film bag itself.
2. finned gas separation membrane module according to claim 1, which is characterized in that the infiltration gas manifold trunk
(3) cross section is the hollow tubular structure of round, rectangle or other shapes.
3. finned gas separation membrane module according to claim 1, which is characterized in that the open side of the film bag (2)
Length and slit (4) seam length it is isometric.
4. finned gas separation membrane module according to claim 3, which is characterized in that the inside of the film bag (2)
It is provided with flow-guiding screen (5).
5. finned gas separation membrane module according to claim 3, which is characterized in that the slit (4) is straight line
Shape or waveform gap.
6. finned gas separation membrane module according to claim 5, which is characterized in that the slit (4) is along axis
Direction is arranged in parallel or spiral is arranged in the axial direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910591630.3A CN110180334A (en) | 2019-07-02 | 2019-07-02 | Finned gas separation membrane module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910591630.3A CN110180334A (en) | 2019-07-02 | 2019-07-02 | Finned gas separation membrane module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110180334A true CN110180334A (en) | 2019-08-30 |
Family
ID=67724710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910591630.3A Pending CN110180334A (en) | 2019-07-02 | 2019-07-02 | Finned gas separation membrane module |
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| CN (1) | CN110180334A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112870924A (en) * | 2021-01-22 | 2021-06-01 | 丁雅蓉 | Organic gas membrane separation equipment for laboratory |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5460720A (en) * | 1993-08-12 | 1995-10-24 | Schneider; Burnett M. | Pleated membrane crossflow fluid separation device |
| CN205659545U (en) * | 2016-06-02 | 2016-10-26 | 四川励精科技有限公司 | Oxygen can be made and clean air's portable rest cabin is provided |
| CN207237724U (en) * | 2017-09-08 | 2018-04-17 | 大连迈泰克科技开发有限公司 | Efficient collapsible membrane separator internals |
| CN210495828U (en) * | 2019-07-02 | 2020-05-12 | 深圳市群峰科技开发有限公司 | Fin type gas separation membrane assembly |
-
2019
- 2019-07-02 CN CN201910591630.3A patent/CN110180334A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5460720A (en) * | 1993-08-12 | 1995-10-24 | Schneider; Burnett M. | Pleated membrane crossflow fluid separation device |
| CN205659545U (en) * | 2016-06-02 | 2016-10-26 | 四川励精科技有限公司 | Oxygen can be made and clean air's portable rest cabin is provided |
| CN207237724U (en) * | 2017-09-08 | 2018-04-17 | 大连迈泰克科技开发有限公司 | Efficient collapsible membrane separator internals |
| CN210495828U (en) * | 2019-07-02 | 2020-05-12 | 深圳市群峰科技开发有限公司 | Fin type gas separation membrane assembly |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112870924A (en) * | 2021-01-22 | 2021-06-01 | 丁雅蓉 | Organic gas membrane separation equipment for laboratory |
| CN112870924B (en) * | 2021-01-22 | 2022-10-25 | 广州市朔康医疗科技有限公司 | Organic gas membrane separation equipment for laboratory |
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