CN116173737B - Integral type roll-type separation membrane element - Google Patents
Integral type roll-type separation membrane element Download PDFInfo
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- CN116173737B CN116173737B CN202310167611.4A CN202310167611A CN116173737B CN 116173737 B CN116173737 B CN 116173737B CN 202310167611 A CN202310167611 A CN 202310167611A CN 116173737 B CN116173737 B CN 116173737B
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- 239000012528 membrane Substances 0.000 title claims abstract description 102
- 238000000926 separation method Methods 0.000 title claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 55
- 239000003292 glue Substances 0.000 claims description 12
- 238000003466 welding Methods 0.000 claims description 7
- 229920000457 chlorinated polyvinyl chloride Polymers 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 abstract description 21
- 238000001914 filtration Methods 0.000 abstract description 2
- 239000004698 Polyethylene Substances 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 4
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 4
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 4
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000012466 permeate Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 239000000706 filtrate Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000004801 Chlorinated PVC Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- B01D63/06—Tubular membrane modules
- B01D63/062—Tubular membrane modules with membranes on a surface of a support tube
- B01D63/065—Tubular membrane modules with membranes on a surface of a support tube on the outer surface thereof
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2313/00—Details relating to membrane modules or apparatus
- B01D2313/21—Specific headers, end caps
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses an integrated roll-type separation membrane element, which comprises a shell, a membrane core and two end covers, wherein the shell and the end covers are fixedly and hermetically connected into a whole, the end covers comprise a cover plate and a ring, a first interface and a second interface are arranged on the cover plate, a first end face supporting piece for separating an annular channel between the ring and the second interface is arranged between one end of the ring, which is close to the membrane core, and the second interface, the first end face supporting piece separates the first interface into two through holes which are respectively communicated with parts of the annular channel, which are positioned at two sides of the first end face supporting piece, a second end face supporting piece and a third end face supporting piece are arranged in the annular channel, and the second end face supporting piece and the third end face supporting piece are not separated from the annular channel. The invention has universal interfaces at two ends and better sealing performance and pressure bearing performance compared with the prior design. The end cover structure with special design can divide the liquid flow into two parts when entering, and the liquid flow meanders in the annular loop, so that the pressure protection film core and the dispersed liquid flow can be differentiated to improve the filtering efficiency.
Description
Technical Field
The invention relates to the technical field of water treatment, in particular to an integrated roll-type separation membrane element.
Background
The coiled membrane element consists of a membrane, a water inlet grid, a water producing central pipe, a membrane shell, a membrane end cover and the like, wherein the membrane, the water inlet grid and the water producing grid are coiled around the water producing central pipe and are packaged with the membrane end cover and the membrane shell to form the membrane element, and a unidirectional concentrated water sealing ring is arranged on one end of the membrane end cover. The membrane element cannot be directly used, and needs to be installed in the membrane shell to form a complete membrane assembly with the membrane shell. The membrane element central tube is sealed with the membrane shell end cover through a water production sealing ring, the membrane element shell is sealed with the inner wall of the membrane shell through a concentrated water sealing ring, and the membrane shell is sealed with the membrane shell end cover through an end cover sealing ring. The membrane component is fixed on the frame by using a strap and is connected with a pipeline through an interface to form a membrane separation device.
The common membrane element shell is formed by winding glass fiber reinforced plastic or adhesive tape, the membrane shell consists of a shell and end covers at two ends, and the shell and the end covers are connected in a fastening or screwing mode. The advantage of this form of construction is that the membrane element can be replaced after opening the membrane shell end cap, but has the following disadvantages: 1. the membrane shell end cover is provided with two sealing rings which are respectively used for sealing the shell and the membrane element central tube, so that the sealing rings are easy to damage and leak in the disassembly and assembly process; 2. the production cost is high, and the shell and the end cover of the membrane element can not provide a pressure environment and a pipeline interface, so that a glass fiber reinforced plastic or stainless steel membrane shell is needed, the cost of the membrane shell is increased, and the service life of the cheap membrane shell is lower than that of the membrane element; 3. the membrane element can only be used unidirectionally, and the empty gap between the membrane element and the membrane shell is sealed by using the concentrated water sealing ring to enable raw water to enter the membrane element to work, so that the membrane element needs to pay attention to the installation direction when being installed in the membrane shell, and once the concentrated water sealing ring is installed at the water outlet end, the concentrated water sealing ring is invalid, and the using effect of the membrane element is affected.
At present, a small-size household rolled film element has a film shell integrated product, and the large-size industrial film element has a difference from a household film element structure and has higher operating pressure than the household rolled film element, so the film shell integrated product is not available. Chinese patent publication No. CN201543382U discloses an "integral roll-type membrane assembly", which uses an epoxy resin glue layer to fill the gap between the membrane element and the housing and adds anti-shrinking buffer pressure, but the membrane element and the end cover are still in a traditional connection mode, and complete integration is not realized, and the defects of difficult disassembly and assembly, easy breakage of sealing and high production cost still exist.
Disclosure of Invention
The invention aims to solve the technical problems that: the integrated roll-type separation membrane element has good sealing performance and is universal for raw water and concentrated water interfaces at two ends.
In order to solve the technical problems, the invention comprises a shell, a membrane core arranged in the shell and two end covers respectively arranged at two ends of the shell, wherein the membrane core comprises a central tube and a filter layer wound on the central tube, the two ends of the central tube are positioned outside the filter layer, the shell and the end covers are fixedly and hermetically connected into a whole, the end covers comprise a cover plate and a ring, the cover plate is fixed in the ring, a first interface and a second interface are arranged on the cover plate, a limiting structure is arranged on the inner wall of the second interface, the central tube is inserted in the second interface and is limited by the limiting structure, a first end face supporting sheet for isolating an annular channel between the ring and the second interface is arranged between one end of the ring, which is close to the membrane core, and the second interface, the first port support piece separates the first interface into two ports, the two ports are communicated with the annular channel at two sides of the first port support piece respectively, the annular channel is internally provided with a second port support piece and a third port support piece which are spaced apart, the second port support piece and the third port support piece do not separate the annular channel, the end faces of the filter layer are supported on the first port support piece, the second port support piece and the third port support piece of the corresponding end cover, the first ports of the two end covers are all through ports, and the second port of at least one end cover is a through port.
Preferably, the filter layer comprises a membrane, a water inlet grid and a water producing grid, and the membrane, the water inlet grid and the water producing grid are rolled around the central tube to form the filter layer.
Preferably, glue or sealing rubber strips are used for sealing between the film core and the shell.
Preferably, the shell and the end cover are made of PVC-U or ABS or PVC-C or PE or PP materials, and the fixed and non-detachable connection between the shell and the end cover is glue bonding or spin welding.
Preferably, the second end surface supporting piece is connected to the outer wall of the second interface close to one side of the film core, the third end surface supporting piece is connected to the inner wall of the ring close to one side of the film core, and the second end surface supporting piece and the third end surface supporting piece are alternately arranged in the annular channel between the ring and the second interface. This arrangement forms an S-shaped channel, which extends the path length of the fluid flow as much as possible in a limited space.
Preferably, the second interfaces of the two end covers are through interfaces, the second interfaces are secondary stepped holes, the large ends of the secondary stepped holes are connected with the central tube, the step surfaces of the secondary stepped holes form the limiting structure, and the central tube and the second interfaces are bonded together by glue or welded together by spin welding. During production, the misplacement relation can play a role in limiting the position of the membrane core, and the glue or spin welding mode can play a better sealing effect than the sealing ring used in the traditional connection.
Preferably, the second interfaces of the two end covers are through interfaces, the two ends of the second interfaces are eccentric holes, the joint of the eccentric holes at the two ends of the second interfaces forms the limiting structure, and the central pipe and the second interfaces are bonded together by using glue or welded together by spin welding.
Preferably, the first interface and the second interface are threaded or buckled interfaces, the first interface is connected with a feeding pipeline and a concentrated solution pipeline, and the second interface penetrates the solution pipeline. The material liquid inlet and outlet interfaces can be interchanged at will, so that the use is extremely free, and the cleaning can be more thorough in the cleaning process. The fixed structure can be fixed with the frame by using a screw. When the membrane element is used, the membrane element can be fixed on the frame only through the fixing structures on the end surfaces of the two sides, and the membrane element is convenient to assemble and disassemble and easy to use.
Preferably, the two end covers are a first end cover and a second end cover, one end of the second interface of the second end cover, which is far away from the membrane core, is closed, one end of the second interface of the second end cover, which is adjacent to the membrane core, is open, one end of the second interface of the second end cover, which is open, is connected with the central tube, a multi-way tube is arranged in the ring of the second end cover, the tube orifices of the multi-way tube are all arranged on the side wall of the ring, and the first interface is communicated with all the tube orifices of the multi-way tube.
The beneficial effects of the invention are as follows: the end cover is fixedly connected with the shell, and the membrane element is not required to use sealing elements such as a sealing ring and the like due to the fact that the end cover is not required to be detached, so that the sealing performance is better, and meanwhile, the membrane element can bear larger pressure due to the fact that the membrane element is fixedly connected into an integral structure. The special structure of the end covers enables the first connector on each end cover to be used as a raw water gap or a concentrated water gap, and the function of the connector at two ends is realized. The end cover structure with special design can divide the liquid flow into two parts when entering, and the liquid flow meanders in the annular loop, so that the liquid flow is uniformly distributed, the retention time in the passage is prolonged, and the functions of differentiating the pressure protection film core and dispersing the liquid flow to improve the filtering efficiency are achieved. The functions of the membrane element and the membrane shell are combined into a whole, so that the overall investment is reduced.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present invention.
Fig. 2 is a schematic view of the inner side structures of the end caps on both sides of embodiment 1 and the upper end cap of embodiment 2 of the present invention.
Fig. 3 is a schematic view of the outer side structures of the end caps on both sides of embodiment 1 and the upper end cap of embodiment 2 of the present invention.
Fig. 4 is a schematic structural view of the connection between the shell, the membrane core and the end cover according to embodiment 1 of the present invention.
Fig. 5 is a schematic cross-sectional view of embodiment 2 of the present invention.
Fig. 6 is a schematic view showing the outer structure of the lower end cap of embodiment 2 of the present invention.
Fig. 7 is a schematic view showing the inner side structure of the lower end cap of embodiment 2 of the present invention.
Fig. 8 is a cross-sectional view of the lower end cap of embodiment 2 of the present invention.
Fig. 9 is a schematic structural view of embodiment 2 of the present invention.
In the figure, 1, a shell; 2. a membrane core; 3. an end cap; 4. a central tube; 5. a filter layer; 6. a cover plate; 7. a loop; 8. a first interface; 9. a second interface; 10. a first end face support sheet; 11. a second end surface support sheet; 12. a third end surface support sheet; 13. a fixed structure; 14. reinforcing ribs; 15. a central tube limit groove; 16. a three-way pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, in which all directional indications (such as up, down, left, right, front, and rear … …) are only used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
Example 1:
referring to fig. 1, an integrated roll-type separation membrane element includes a housing 1, a membrane core 2, and an end cap 3. The shell 1 accommodates the membrane core 2 and is sealed with the membrane core 2 through glue or a sealing ring, the two ends of the shell 1 are connected with the end covers 3 by using glue or spin welding, and compared with other connection modes, the connection mode can support the normal operation of the element under the condition of higher pressure and has better sealing performance. The shell 1 and the end cover 3 are made of PVC-U, PVC-C, PE, ABS or PP, the PVC-U is hard polyvinyl chloride, the PVC-C is chlorinated polyvinyl chloride, the PE is polyethylene, the ABS is acrylonitrile-butadiene-styrene copolymer, and the PP is polypropylene. The membrane core 2 comprises a central tube 4 and a filter layer 5, wherein a plurality of filter holes are formed in the central tube 4, and the filter layer 5 is formed by rolling a membrane, a water inlet grid and a water producing grid around the central tube 4.
Referring to fig. 2 and 3, the end cover 3 includes a cover plate 6 and a ring 7, the cover plate 6 is fixed in the ring 7, a first interface 8 and a second interface 9 are provided on the cover plate 6, a fixing structure 13 and a reinforcing rib 14 are provided outside the ring 7, and the fixing structure is a fixing hole. A first end surface supporting sheet 10 for separating an annular channel between the annular ring 7 and the second interface 9 is arranged between one end of the annular ring 7, which is close to the membrane core 2, and the second interface 9, the first end surface supporting sheet 10 divides the first interface 8 into two through openings, and the two through openings are respectively communicated with the parts of the annular channel, which are positioned at two sides of the first end surface supporting sheet 10, so that the entering liquid flow is divided into two flows which respectively enter the channels at two sides of the first end surface supporting sheet 10; the annular channel is provided with a second end surface supporting plate 11 and a third end surface supporting plate 12 which are spaced apart, the annular channel is not partitioned by the second end surface supporting plate 11 and the third end surface supporting plate 12, the annular channel is alternately arranged to form an annular meandering channel, liquid flow flows in the channel in a bending way, and the three end surface supporting plates cooperatively control the liquid flow to enable raw water to be uniformly distributed before entering the membrane core 2. The first end face supporting piece 10, the second end face supporting piece 11 and the third end face supporting piece 12 are propped against the end face of the film core 2 together, and play a role in fixing and supporting the film core 2.
Referring to fig. 4, the second interface 9 is a second step hole, the large end of the second step hole is connected with the central tube 4, the step surface of the second step hole forms the limit structure, and the central tube 4 and the second interface 9 are bonded together by using glue or welded together by spin welding. In addition, the second interface 9 can also be provided as an eccentric hole, which can also play a limiting role.
Working principle: when the device is used, the screw rod penetrates through the fixing structure 13 to fix the element on the frame, the water inlet pipeline and the concentrated water pipeline are respectively connected to the first connectors 8 of the end covers 3 on the two sides, the permeate pipeline is connected to the second connector 9 on the end cover 3 on one side, and the permeate pipeline is sealed into the second connector 9 on the end cover 3 on the other side. When the roll-type separator works, raw water enters from a water inlet pipeline, enters into a filter layer 5 through a passage formed by three end face supporting sheets, liquid filtered by the filter layer 5 is filtered liquid, the filtered liquid enters into a central pipe 4 through a filter hole, then flows out from a filtrate pipeline, and unfiltered concentrated water flows out from a concentrated water interface at the other end.
When the roll separator needs to be cleaned, water can be injected from the water inlet interface during working, water can be injected from the concentrated water interface during working, and when the water is injected from the concentrated water interface, liquid flow is opposite to the liquid flow direction during working, and compared with a cleaning mode with the same flow direction, the roll separator can clean the elements more thoroughly.
Example 2:
embodiment 2 a separation membrane element is vertically arranged, and a lower end cap structure is shown in fig. 5 to 9, and embodiment 2 is different from embodiment 1 in that: the lower end cap structure differs from the end cap 3 of example 1: the end of the second interface 9 far away from the membrane core 2 in embodiment 2 is closed, and the end of the second interface 9 near the membrane core 2 is open, and a central tube limiting groove 15 is formed for connecting with the central tube 4. The ring 7 of the lower end cover is also provided with a three-way pipe 16, three pipe orifices of the three-way pipe 16 are all arranged on the side wall of the ring, and the first connector 8 is communicated with the three-way pipe 16, so that the first connector is communicated with the three pipe orifices of the three-way pipe 16, and in addition, the number of the three-way pipe 16 can be increased or decreased appropriately according to practical situations. The fixing structure 13 of the lower end cover is a fixing groove.
Working principle: when the device is used, the separation membrane element is vertically placed and fixed by penetrating through the fixing structure 13 through the screw, the lower end cover is directly contacted with the ground or the supporting frame, the whole separation membrane element is not suspended, and the bearing capacity of the fixing structure 13 can be shared. When connecting the pipelines, the permeate pipeline is connected to the second connector 9 of the upper end cover, so that the water inlet pipeline can be connected to any pipe orifice of the three-way pipe 16 of the lower end cover, the other two pipe orifices are sealed, and the concentrated water pipeline is connected to the first connector 8 of the upper end cover; the water inlet pipeline can be connected to the first connector 8 of the upper end cover, the concentrated water pipeline is connected to any pipe orifice of the three-way pipe 16 of the lower end cover, and the other two pipe orifices are sealed. When the roll-type separator works, raw water enters from a water inlet pipeline, enters into a filter layer 5 through a passage formed by three end face supporting sheets, liquid filtered by the filter layer 5 is filtered liquid, the filtered liquid enters into a central pipe 4 through a filter hole, then flows out from a filtrate pipeline, and unfiltered concentrated water flows out from a concentrated water interface at the other end.
When the roll separator needs to be cleaned, water can be injected from the water inlet interface during working, water can be injected from the concentrated water interface during working, and when the water is injected from the concentrated water interface, liquid flow is opposite to the liquid flow direction during working, and compared with a cleaning mode with the same flow direction, the roll separator can clean the elements more thoroughly.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides an integral type roll-up separation membrane element, includes casing (1), sets up membrane core (2) in casing (1) and sets up two end covers (3) at casing (1) both ends respectively, and membrane core (2) include center tube (4) and winding filter layer (5) on center tube (4), and center tube (4) both ends are located outside filter layer (5), its characterized in that: the shell (1) and the end cover (3) are fixedly and hermetically connected into a whole, the end cover (3) comprises a cover plate (6) and a ring (7), the cover plate (6) is fixed in the ring (7), a first interface (8) and a second interface (9) are arranged on the cover plate (6), a limiting structure is arranged on the inner wall of the second interface (9), the central tube (4) is inserted in the second interface (9) and limited by the limiting structure, a first end face supporting piece (10) for isolating an annular channel between the ring (7) and the second interface (9) is arranged between one end of the ring (7) close to the membrane core (2) and the second interface (9), the first end face supporting piece (10) is used for isolating the first interface (8) into two through openings, the two through openings are respectively communicated with parts of the annular channel, which are positioned at two sides of the first end face supporting piece (10), a second end face supporting piece (11) and a third end face supporting piece (12) which are spaced apart are arranged in the annular channel, the second end face supporting piece (11) and the third end face supporting piece (12) are not communicated with the corresponding end face supporting piece (3) of the first end face supporting piece (3), the second interface (9) of at least one end cap (3) is a through interface.
2. The integrated roll-type separation membrane element of claim 1, wherein: the filter layer (5) comprises a membrane, a water inlet grid and a water producing grid, and the membrane, the water inlet grid and the water producing grid are coiled around the central tube (4) to form the filter layer (5).
3. The integrated roll-type separation membrane element of claim 1, wherein: the membrane core (2) and the shell (1) are sealed by glue or sealing rubber strips.
4. The integrated roll-type separation membrane element of claim 1, wherein: the shell (1) and the end cover (3) are made of PVC-U, PVC-C, PE, ABS or PP materials, and the shell (1) and the end cover (3) are bonded by glue or welded by spin welding.
5. The integrated roll-type separation membrane element of claim 1, wherein: the second end face supporting piece (11) is connected to the outer wall of one side, close to the membrane core (2), of the second interface (9), the third end face supporting piece (12) is connected to the inner wall of one side, close to the membrane core (2), of the annular ring (7), and the second end face supporting piece (11) and the third end face supporting piece (12) are alternately arranged in the annular channel between the annular ring (7) and the second interface (9).
6. The integrated roll-to-roll separation membrane element of any one of claims 1-5, wherein: the second interfaces (9) of the two end covers (3) are all through interfaces, the second interfaces (9) are secondary stepped holes, the large ends of the secondary stepped holes are connected with the central tube (4), the step surfaces of the secondary stepped holes form the limiting structures, and the central tube (4) and the second interfaces (9) are bonded or welded together by using glue.
7. The integrated roll-to-roll separation membrane element of any one of claims 1-5, wherein: the second interfaces (9) of the two end covers (3) are through interfaces, the two ends of the second interfaces (9) are eccentric holes, the connecting parts of the eccentric holes at the two ends of the second interfaces (9) form the limiting structure, and the central pipe (4) and the second interfaces (9) are bonded or welded together by using glue.
8. The integrated roll-type separation membrane element of claim 1, wherein: the first interface (8) and the second interface (9) are threaded or buckle interfaces.
9. The integrated roll-type separation membrane element of claim 1, wherein: one end of the ring (7) far away from the membrane core (2) is provided with a fixing structure (13), and one end of the ring (7) far away from the membrane core (2) is provided with a plurality of reinforcing ribs (14) which are connected with the second interface (9).
10. The integrated roll-type separation membrane element of claim 1, wherein: the two end covers (3) are a first end cover and a second end cover, one end, far away from the membrane core (2), of a second connector (9) of the second end cover is closed, one end, close to the membrane core (2), of the second connector (9) of the second end cover is open, one end, open to the second connector, of the second end cover is connected with the central tube (4), a communicating tube is arranged in a ring (7) of the second end cover, the communicating tube is provided with at least two tube orifices, one tube orifice of the communicating tube is communicated with the first connector (8), and other tube orifices of the communicating tube are all arranged on the side wall of the ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310167611.4A CN116173737B (en) | 2023-02-27 | 2023-02-27 | Integral type roll-type separation membrane element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310167611.4A CN116173737B (en) | 2023-02-27 | 2023-02-27 | Integral type roll-type separation membrane element |
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| Publication Number | Publication Date |
|---|---|
| CN116173737A CN116173737A (en) | 2023-05-30 |
| CN116173737B true CN116173737B (en) | 2023-11-03 |
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| CN202310167611.4A Active CN116173737B (en) | 2023-02-27 | 2023-02-27 | Integral type roll-type separation membrane element |
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| CN (1) | CN116173737B (en) |
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| CN207085688U (en) * | 2017-07-25 | 2018-03-13 | 佛山市顺德区美的饮水机制造有限公司 | Reverse-osmosis membrane element and water purifier |
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| CN215138681U (en) * | 2021-03-22 | 2021-12-14 | 万华化学集团股份有限公司 | End cover for fixing roll type membrane element |
| CN215413284U (en) * | 2021-07-01 | 2022-01-04 | 天津市永安换热装备有限公司 | High-temperature tube type heat exchanger |
| CN216260060U (en) * | 2021-11-09 | 2022-04-12 | 天津创源碧凯环境工程有限公司 | Reverse osmosis membrane assembly |
| CN115010211A (en) * | 2022-02-09 | 2022-09-06 | 甘肃农业大学 | Drinking water purification mechanism and rural drinking water machine |
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| CN206652393U (en) * | 2017-04-21 | 2017-11-21 | 江苏坤奕环境工程有限公司 | The open runner network pipe type high pressure reverse osmosis membrane assemblies of 90bar |
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| CN215413284U (en) * | 2021-07-01 | 2022-01-04 | 天津市永安换热装备有限公司 | High-temperature tube type heat exchanger |
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| CN115010211A (en) * | 2022-02-09 | 2022-09-06 | 甘肃农业大学 | Drinking water purification mechanism and rural drinking water machine |
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|---|---|
| CN116173737A (en) | 2023-05-30 |
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