CN108905623B - Membrane separation device - Google Patents
Membrane separation device Download PDFInfo
- Publication number
- CN108905623B CN108905623B CN201810990339.9A CN201810990339A CN108905623B CN 108905623 B CN108905623 B CN 108905623B CN 201810990339 A CN201810990339 A CN 201810990339A CN 108905623 B CN108905623 B CN 108905623B
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- Prior art keywords
- hole
- supporting plate
- discharging
- feeding
- plate
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- 239000012528 membrane Substances 0.000 title claims abstract description 73
- 238000000926 separation method Methods 0.000 title claims abstract description 58
- 238000007599 discharging Methods 0.000 claims abstract description 95
- 239000000463 material Substances 0.000 claims abstract description 37
- 239000011347 resin Substances 0.000 claims abstract description 24
- 229920005989 resin Polymers 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 4
- 125000006850 spacer group Chemical group 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 235000019198 oils Nutrition 0.000 claims description 15
- -1 polytetrafluoroethylene Polymers 0.000 claims description 9
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 9
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 9
- 238000009434 installation Methods 0.000 claims description 2
- 235000019476 oil-water mixture Nutrition 0.000 claims description 2
- 230000004927 fusion Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000011176 pooling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
- B01D63/08—Flat membrane modules
- B01D63/082—Flat membrane modules comprising a stack of flat membranes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Water Supply & Treatment (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides a membrane separation device. The device comprises: a front hold-down plate, a rear hold-down plate; a plurality of feeding side supporting plates, separating diaphragms and a plurality of discharging side supporting plates are sequentially arranged between the front compacting plate and the rear compacting plate; wherein the feeding side supporting plate and the discharging side supporting plate are arranged at intervals by taking the separation membrane as a spacer; the front compacting plate and the rear compacting plate compact the feeding side supporting plate, the separating diaphragm and the discharging side supporting plate to form a sealing cavity; the feeding side supporting plate and the discharging side supporting plate are sheet structures formed by locally fusing silk screens and resin materials. According to the invention, more separation membranes can be arranged under the same volume, and compared with a membrane separation device using columnar separation membranes, the device provided by the invention has the advantage that the equipment volume is effectively reduced.
Description
Technical Field
The invention relates to the field of physical separation, in particular to a membrane separation device.
Background
Membrane separation technology refers to technology that enables selective separation of a mixture of molecules of different particle sizes at the molecular level as they pass through a semipermeable membrane. In the conventional membrane separation apparatus, the separation membrane is generally formed into a cylindrical shape or a tubular shape. This causes a problem in that the area of the membrane to be mounted per unit volume is limited. If limited floor space is encountered, processing capacity is affected.
Disclosure of Invention
Accordingly, the present invention is directed to a membrane separation device, which solves the above-mentioned problems of the prior art.
The present invention provides a membrane separation device comprising:
a front hold-down plate, a rear hold-down plate;
a plurality of feeding side supporting plates, separating diaphragms and a plurality of discharging side supporting plates are sequentially arranged between the front compacting plate and the rear compacting plate; wherein the feeding side supporting plate and the discharging side supporting plate are arranged at intervals by taking the separation membrane as a spacer; the front compacting plate and the rear compacting plate compact the feeding side supporting plate, the separating diaphragm and the discharging side supporting plate to form a sealing cavity;
the feeding side supporting plate and the discharging side supporting plate are sheet structures formed by locally fusing silk screens and resin materials.
Optionally, a feeding hole and a discharging hole are formed in the feeding side supporting plate; the feeding hole and the discharging hole are respectively connected with an oil-water mixing feeding hole and a water discharging hole on the front compacting plate; a resin covering layer fused with the silk screen is arranged around the feeding hole and the discharging hole and around the plate frame of the feeding side supporting plate;
a part of the resin cover layer extends to one side of the feeding side supporting plate far from the front compacting plate, thereby forming a tortuous flow passage on the feeding side supporting plate, and after the feeding side supporting plate is clamped by the separating diaphragms at two sides of the feeding side supporting plate, a continuous closed flow passage space extending from the feeding hole to the discharging hole is formed;
a discharging side runner corresponding to the runner of the feeding side supporting plate is arranged on the discharging side supporting plate; the discharging side supporting plate is provided with a discharging side discharging hole at a position different from the discharging hole of the feeding side supporting plate; and a covering layer of fused resin material is arranged around the discharging side discharging hole.
Optionally, the screens at the feed holes and the discharge holes are not fused with the resin material, and only feed channels and discharge channels supported by the screens are formed;
the wire mesh at the discharge side discharge hole is not fused with the resin material, and only a discharge side discharge duct supported by the wire mesh is formed.
Optionally, the wire mesh is a wire mesh; the resin material is polytetrafluoroethylene.
Optionally, the membrane separation device further comprises at least one positioning beam; the membrane positioning beam is embedded with a positioning groove on at least one end part of the separation membrane, the feeding side supporting plate and the discharging side supporting plate in the vertical direction.
Optionally, the rear compacting plate is provided with at least one separator leg.
Optionally, one end of the positioning beam is connected to the separator leg.
Optionally, the positioning beam is T-shaped.
Optionally, a through hole is further formed in the feeding side supporting plate, wherein the feeding hole and the discharging hole in the feeding side supporting plate are respectively connected with the oil-water mixture feeding hole and the water discharging hole in the front pressing plate, and the front pressing plate is further provided with an oil discharging hole; the discharge hole on the feeding side supporting plate is a water discharge hole, wherein the feeding hole and the water discharge hole are respectively provided with a pair of feeding side liquid collecting hole supporting plates, and a runner of the feeding side supporting plate is communicated with the feeding hole and the water discharge hole through the feeding side liquid collecting hole supporting plates; the discharging side supporting plate is also provided with two through holes, the positions of which correspond to the feeding holes and the discharging holes in the feeding side supporting plate respectively; the discharging side discharging hole is connected with an oil discharging hole on the front compacting plate; a pair of discharge side liquid collecting port supporting plates are arranged at the discharge side discharge holes; the discharging side discharging hole is an oil discharging hole; the runner of the discharge side supporting plate is communicated with the oil discharge hole through the discharge side liquid collecting port supporting plate; the position of the through hole on the feeding side supporting plate corresponds to the position of the discharging side discharging hole.
Optionally, the feeding side liquid collecting port supporting plate and the discharging side liquid collecting port supporting plate are annular and are provided with hole parts, and the diameters of the hole parts are consistent with the diameters of the corresponding feeding holes, the corresponding water discharging holes or the corresponding oil discharging holes; in the installation state of the feeding side liquid collecting port supporting plate and the discharging side liquid collecting port supporting plate, the hole-shaped part is aligned with the corresponding feeding hole, water discharging hole or oil discharging hole; 4 bosses which are symmetrical with the annular center and are equidistantly spaced are arranged on the surfaces of the feeding side liquid collecting port supporting plate and the discharging side liquid collecting port supporting plate; the feeding side liquid collecting port supporting plate and the discharging side liquid collecting port supporting plate are welded with the silk screen at the boss.
The invention has the beneficial effects that: the supporting plate is formed by fusing the silk screen and polytetrafluoroethylene or other resin materials, the thickness and manufacturing cost of the supporting plate are greatly reduced, the protruding points of the silk screen are used as supporting points for supporting the low-pressure side of the separation membrane, the number of the supporting points is large, and the weak membrane can bear higher pressure difference. Because the structure of the invention can adopt a very thin supporting plate (the thickness is less than 1 millimeter), more separating membranes can be arranged under the same volume, and compared with a membrane separating device using columnar separating membranes, the invention effectively reduces the volume of equipment. In addition, the separating membrane of the invention can be replaced independently, thereby reducing the operation cost of users.
Drawings
FIG. 1 is an exploded view of a membrane separation device according to the present invention;
FIG. 2 is a schematic view of a feed side support plate 5 in the membrane separation device of FIG. 1;
fig. 3 is a schematic view of another membrane separation device according to the present invention.
FIG. 4 is an exploded view of a feed side support plate with a liquid collection port support plate at the feed port and water discharge port provided in accordance with some embodiments of the present invention;
FIG. 5 is an exploded view of a discharge side support plate with a liquid collection port support plate at an oil discharge port provided by the present invention;
fig. 6 is a front view of a liquid pooling port support plate provided by the present invention.
Detailed Description
The present invention is described in further detail below with reference to the drawings to enable those skilled in the art to practice the invention by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1, the membrane separation device provided by the invention is a square columnar device. The two ends of the plate-frame membrane separation device are provided with a front compacting plate 4 and a rear compacting plate 9. A plurality of feeding side supporting plates 5, separating membranes 6 and a plurality of discharging side supporting plates 7 are sequentially arranged between the front compacting plate 4 and the rear compacting plate 9. Wherein, the feeding side supporting plate 5 and the discharging side supporting plate 7 are arranged at intervals. The front compacting plate 4 and the rear compacting plate 9 compact the feeding side supporting plate 5, the separating membrane 6 and the discharging side supporting plate 7 and form a sealing cavity.
In some embodiments of the invention, the front and rear hold-down plates 4, 9 may be screw-tightened to hold down the feed-side support plate 5, the separation membrane 6 and the discharge-side support plate 7. Alternatively, other common connection structures may be used to connect the front and rear hold-down plates 4 and 9 to effect the hold-down of the feed side support plate 5, separation membrane 6, and discharge side support plate 7, which is not limited in this regard by the present invention.
In some embodiments of the present invention, the membrane separation device may be a column device with other shapes, for example, a polygonal column device, which is not limited in the present invention.
The feeding side supporting plate 5 is provided with a feeding hole 1 'and a discharging hole 2' (shown in fig. 2) which are respectively connected with the oil-water mixing feeding hole 1 and the water discharging hole 2 of the front compacting plate 4. The front compacting plate 4 is also provided with an oil discharge port 3, and the feeding side supporting plate 5 is also provided with a feeding side through hole 3'.
The feed side support plate 5 and the discharge side support plate 7 are sheet-like structures formed by locally fusing a wire mesh (wire mesh or non-wire mesh) with polytetrafluoroethylene or other resin material. The specific structure is as follows: and polytetrafluoroethylene or other resin material coating fused with the silk screen is arranged around the feeding hole 1' and the discharging hole 2' of the feeding side supporting plate 5, the feeding side through hole 3' and the plate frame. Such a cover layer extends partly to the inner side of the feed side support plate 5 (the side of the feed side support plate remote from the feed opening, the discharge opening), whereby a meandering flow channel is formed in the feed side support plate 5, so that after the feed side support plate 5 is clamped by the diaphragms on both sides thereof, a continuous closed flow channel space is formed, which extends from the feed opening 1' up to the discharge opening 2', the feed side through opening 3'. Because the screen mesh is formed in the middle of the flow channel, the screen mesh can promote the turbulence of the materials, and the materials which need to pass through the separation membrane can be favorably diffused to the surface of the membrane. In addition, the mesh at the feed port 1' and the discharge port 2', the feed-side through hole 3' is not fused with polytetrafluoroethylene or other resin material, and only the feed port and the discharge port supported by the mesh are formed.
The discharge-side support plates 7 adjacent to the feed-side support plates 5 have the same flow channel design, except that the discharge-side support plates 7 have no feed holes, but are provided with discharge-side discharge holes 3″ located at different positions than the discharge holes of the feed-side support plates 5. The discharge side discharge hole 3″ is connected with the oil discharge hole 3. The discharging side supporting plate 7 is also provided with two discharging side through holes which are respectively a discharging side through hole 1 'and a discharging side through hole 2'. The positions of the discharge-side through holes 1″ and the discharge-side through holes 2″ correspond to the positions of the feed-side feed holes 1 'and the feed-side discharge holes 2', respectively. While the position of the feed-side through hole 3' corresponds to the position of the discharge-side discharge opening 3″. A covering layer of fused polytetrafluoroethylene or other resin material is provided around the discharge-side discharge hole 3″. The silk screen of the discharging side supporting plate 7 is used for supporting the separating diaphragms on the left side and the right side of the discharging side supporting plate in work engineering, so that adjacent separating diaphragms are prevented from being stuck together due to the action of working pressure difference, and gaps can be formed between the adjacent separating diaphragms under the action of the pressure difference, so that materials separated by the separating diaphragms flow out from the discharging port of the discharging side supporting plate 7 along a designed flow channel.
The working principle of the membrane separation device provided by the invention is as follows: n feeding side backup pad and N ejection of compact side backup pad interval each other set up, are provided with the separation diaphragm between adjacent feeding side backup pad and the ejection of compact side backup pad. After the two sides of the membrane separation device are pressed by the pressing plates, N parallel and closed feeding side cavities and N parallel and closed discharging side cavities are formed. Under the action of the feed pressure, the material (A, B phase mixture material, assuming that the a phase material can pass through the separation membrane and the B phase material cannot pass through the separation membrane) enters the feed side cavity from the feed inlet and flows in the direction of the flow passage toward the discharge hole in the feed side support plate, from which the material flows out of the membrane separation device. And a discharge pressure regulating valve is arranged on a pipeline connected with the discharge hole of the discharge side supporting plate. The regulating valve can set and control the pressure of the discharge hole (A-phase material discharge hole) on the discharge side supporting plate to be smaller than the pressure of the discharge hole (B-phase material discharge hole) of the feed side supporting plate. Thus, under the action of pressure difference, the A-phase material can pass through the separation membrane, and flow out of the separation device from the discharge hole obtained from the discharge side support plate. At the same time, the concentration of phase a material in the material flowing in the feed side support plate will be lower and lower in the direction of flow, while the concentration of phase B material will be higher and higher. The membrane area of the separating device is selected according to the actual requirement, so that the flow velocity of the material in the flow channel is lower than the highest allowable value, and the material flowing out from the discharge hole on the feeding side supporting plate can only have phase B. The material flowing out of the discharge hole on the discharge side supporting plate is clean A-phase material when the set pressure of the pressure regulating valve at the downstream of the discharge hole of the discharge side supporting plate is smaller than the maximum allowable pressure.
The invention adopts the supporting plate formed by fusing the silk screen and polytetrafluoroethylene or other resins, has the advantages of greatly reducing the thickness and manufacturing cost of the supporting plate, and ensures that the silk screen is arranged on the low-pressure side of the separation membrane to serve as the supporting, the number of supporting points is large, and the weak membrane can bear higher pressure difference. Since the support plate is very thin (the thickness may be less than 1 mm). Therefore, more separation membranes can be installed under the same volume, and the volume of the device is effectively reduced. Compared with the columnar separation membrane, the support plate can be used for a long period, and the membrane can be independently replaced, so that the running cost of a user is greatly reduced.
In some embodiments of the invention, the membrane separation device further comprises a membrane positioning beam 8. The diaphragm positioning beam 8 is fitted with positioning grooves on at least one end portion in the vertical direction of the separation diaphragm 6, the feed side support plate 5, and the discharge side support plate 7 so that the positions of the separation diaphragm 6, the feed side support plate 5, and the discharge side support plate 7 are relatively fixed, in other words, the separation diaphragm 6, the feed side support plate 5, and the discharge side support plate 7 are not relatively offset from each other.
Alternatively, the membrane separation device may comprise a plurality of positioning beams 8. The separating membrane 6, the feeding side supporting plate 5 and the discharging side supporting plate 7 are provided with positioning grooves with the same number as the positioning beams 8. The positioning grooves may be provided on both ends of the separation membrane 6, the feeding side support plate 5, and the discharging side support plate 7 in the vertical direction, and the number of positioning grooves provided on each end is not limited.
The positioning beam 8 may have various shapes, for example, in the embodiment shown in fig. 1, the positioning beam 8 is "T" shaped, and the positioning beam 8 may also have a square shape, a circular shape, or the like, which is not limited by the present invention.
In some embodiments of the invention, the rear pinch plate 9 is provided with one or more separator legs 10 to support the membrane separation device in a vertical direction.
Alternatively, one end of the positioning beam 8 may be connected to the separator leg 10, whereby the relative positions among the separation membrane 6, the feed side support plate 5, and the discharge side support plate 7 may be further fixed.
Since the wire mesh in the vicinity of the feed and discharge holes is not fused with the resin material, no flow to the resin material can be formed. To overcome this problem, a liquid collecting port support plate is provided at the feed hole 1 'and the discharge hole 2', and the feed-side through hole 3', so that a flow path is formed at the feed hole 1' and the discharge hole 2', and the feed-side through hole 3'. The method comprises the following steps:
in some embodiments of the present invention, as shown in fig. 4, the feed hole 1 'and the water discharge hole 2' are provided with a pair of liquid collecting port support plates 11, respectively.
In some embodiments of the present invention, as shown in fig. 5, the discharge-side through hole 1″ and the discharge-side discharge hole 3″ are provided with a pair of liquid pooling port support plates 11, respectively.
As shown in fig. 6, the liquid collecting port support plate 11 has a ring shape and has a hole-like portion 12 whose inner diameter (diameter of the hole-like portion 12) coincides with the aperture of the feed hole 1', the discharge hole 2', and the feed-side through hole 3'. In the mounted state of the liquid collecting port support plate 11, the hole-like portion 12 is aligned with the feed hole 1', the discharge hole 2', and the feed-side through hole 3'.
As shown in fig. 6, 4 bosses 13 are symmetrically and equidistantly spaced around the center of the ring on the surface of the liquid collection port support plate 11. The liquid collection port support plate 11 is welded to the screen at the boss 13.
The supporting plate is formed by fusing the silk screen and polytetrafluoroethylene or other resin materials, the thickness and manufacturing cost of the supporting plate are greatly reduced, the protruding points of the silk screen are used as supporting points for supporting the low-pressure side of the separation membrane, the number of the supporting points is large, and the weak membrane can bear higher pressure difference. Because the structure of the invention can adopt a very thin supporting plate (the thickness is less than 1 millimeter), more separating membranes can be arranged under the same volume, and compared with a membrane separating device using columnar separating membranes, the invention effectively reduces the volume of equipment. In addition, the separating membrane of the invention can be replaced independently, thereby reducing the operation cost of users.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (8)
1. A membrane separation device, comprising:
a front hold-down plate, a rear hold-down plate;
a plurality of feeding side supporting plates, separating diaphragms and a plurality of discharging side supporting plates are sequentially arranged between the front compacting plate and the rear compacting plate; wherein the feeding side supporting plate and the discharging side supporting plate are arranged at intervals by taking the separation membrane as a spacer; the front compacting plate and the rear compacting plate compact the feeding side supporting plate, the separating diaphragm and the discharging side supporting plate to form a sealing cavity;
the feeding side supporting plate and the discharging side supporting plate are sheet structures formed by locally fusing silk screens and resin materials;
wherein, the feeding side supporting plate is provided with a feeding hole and a discharging hole; the feeding hole and the discharging hole are respectively connected with an oil-water mixing feeding hole and a water discharging hole on the front compacting plate; a resin covering layer fused with the silk screen is arranged around the feeding hole and the discharging hole and around the plate frame of the feeding side supporting plate;
a part of the resin cover layer extends to one side of the feeding side supporting plate far from the front compacting plate, thereby forming a tortuous flow passage on the feeding side supporting plate, and after the feeding side supporting plate is clamped by the separating diaphragms at two sides of the feeding side supporting plate, a continuous closed flow passage space extending from the feeding hole to the discharging hole is formed;
a discharging side runner corresponding to the runner of the feeding side supporting plate is arranged on the discharging side supporting plate; the discharging side supporting plate is provided with a discharging side discharging hole at a position different from the discharging hole of the feeding side supporting plate; a covering layer of fusion resin material is arranged around the discharging side discharging hole;
the silk screen at the feeding hole and the discharging hole is not fused with the resin material, and only a feeding hole channel and a discharging hole channel which are supported by the silk screen are formed;
the wire mesh at the discharge side discharge hole is not fused with the resin material, and only a discharge side discharge duct supported by the wire mesh is formed.
2. The membrane separation device of claim 1, wherein the wire mesh is a wire mesh; the resin material is polytetrafluoroethylene.
3. The membrane separation device of claim 1, further comprising at least one positioning beam; the membrane positioning beam is embedded with a positioning groove on at least one end part of the separation membrane, the feeding side supporting plate and the discharging side supporting plate in the vertical direction.
4. A membrane separation device according to claim 3, wherein the rear pinch plate is provided with at least one separator leg.
5. The membrane separation device of claim 4, wherein one end of the positioning beam is connected to the separator leg.
6. A membrane separation device according to claim 3 or 5, wherein the positioning beams are "T" -shaped.
7. The membrane separation device according to claim 1, wherein a through hole is further provided on the feed side support plate, wherein the feed hole and the discharge hole on the feed side support plate are respectively connected to the oil-water mixture feed hole and the water discharge hole on the front compacting plate, and the front compacting plate is further provided with an oil discharge hole; the discharge hole on the feeding side supporting plate is a water discharge hole, wherein the feeding hole and the water discharge hole are respectively provided with a pair of feeding side liquid collecting hole supporting plates, and a runner of the feeding side supporting plate is communicated with the feeding hole and the water discharge hole through the feeding side liquid collecting hole supporting plates; the discharging side supporting plate is also provided with two through holes, the positions of which correspond to the feeding holes and the discharging holes in the feeding side supporting plate respectively; the discharging side discharging hole is connected with an oil discharging hole on the front compacting plate; a pair of discharge side liquid collecting port supporting plates are arranged at the discharge side discharge holes; the discharging side discharging hole is an oil discharging hole; the runner of the discharge side supporting plate is communicated with the oil discharge hole through the discharge side liquid collecting port supporting plate; the position of the through hole on the feeding side supporting plate corresponds to the position of the discharging side discharging hole.
8. The membrane separation device according to claim 7, wherein the feed side liquid collection port support plate and the discharge side liquid collection port support plate are annular and have hole-shaped portions, and the diameters of the hole-shaped portions are consistent with the diameters of the corresponding feed holes, water discharge holes or oil discharge holes; in the installation state of the feeding side liquid collecting port supporting plate and the discharging side liquid collecting port supporting plate, the hole-shaped part is aligned with the corresponding feeding hole, water discharging hole or oil discharging hole; 4 bosses which are symmetrical with the annular center and are equidistantly spaced are arranged on the surfaces of the feeding side liquid collecting port supporting plate and the discharging side liquid collecting port supporting plate; the feeding side liquid collecting port supporting plate and the discharging side liquid collecting port supporting plate are welded with the silk screen at the boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810990339.9A CN108905623B (en) | 2018-08-28 | 2018-08-28 | Membrane separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810990339.9A CN108905623B (en) | 2018-08-28 | 2018-08-28 | Membrane separation device |
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| Publication Number | Publication Date |
|---|---|
| CN108905623A CN108905623A (en) | 2018-11-30 |
| CN108905623B true CN108905623B (en) | 2024-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810990339.9A Active CN108905623B (en) | 2018-08-28 | 2018-08-28 | Membrane separation device |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1254613A (en) * | 1999-12-17 | 2000-05-31 | 清华大学 | Plate frame type separator of permeable vaporizing membrane with heating plate |
| CN208990572U (en) * | 2018-08-28 | 2019-06-18 | 品孚罗特过滤设备（北京）有限公司 | Membrane separation device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6645380B2 (en) * | 2001-12-19 | 2003-11-11 | Petro Sep International Ltd. | Membrane separation apparatus |
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2018
- 2018-08-28 CN CN201810990339.9A patent/CN108905623B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1254613A (en) * | 1999-12-17 | 2000-05-31 | 清华大学 | Plate frame type separator of permeable vaporizing membrane with heating plate |
| CN208990572U (en) * | 2018-08-28 | 2019-06-18 | 品孚罗特过滤设备（北京）有限公司 | Membrane separation device |
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| CN108905623A (en) | 2018-11-30 |
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