CN211470980U

CN211470980U - Wide-runner reverse osmosis membrane

Info

Publication number: CN211470980U
Application number: CN201922024774.9U
Authority: CN
Inventors: 高升雷; 马天津; 王东振
Original assignee: Qingdao Jinhaishun Water Purifying Plant Co ltd
Current assignee: Qingdao Jinhaishun Water Purifying Plant Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-09-11
Anticipated expiration: 2029-11-21

Abstract

The utility model relates to a reverse osmosis membrane, in particular to a wide-flow-channel reverse osmosis membrane, which comprises an adhesive tape outer layer, a reverse osmosis membrane and a central core tube, wherein the adhesive tape outer layer is wrapped on the outer surface of the reverse osmosis membrane, the reverse osmosis membrane comprises a first dense layer and a second dense layer, a base membrane is arranged between the first dense layer and the second dense layer, a central core tube is arranged inside the reverse osmosis membrane in a penetrating way, a raw water diversion net is arranged between the central core tube and the reverse osmosis membrane, one side of the second dense layer close to the raw water diversion net is provided with a thick water wide flow channel, the wide flow channel comprises a first flow channel and a second flow channel, a plurality of groups of permeation holes are arranged on the central core tube, one end of the central core tube is fixedly provided with a sealing cover, one end of the central core tube close to the sealing cover is provided with a, the accumulation of pollutants on the membrane surface of the concentrated water side is slowed down, and the method has a certain popularization effect.

Description

Wide-runner reverse osmosis membrane

Technical Field

The utility model relates to a reverse osmosis membrane specifically is a wide runner reverse osmosis membrane.

Background

The reverse osmosis membrane treatment technology is widely applied to the domestic market at present as an industrial sewage treatment technology, compared with other traditional separation projects, the reverse osmosis separation process has the advantages of high purification efficiency, short construction period, simple operation, low operation cost and the like, although the reverse osmosis membrane process is widely applied to seawater desalination, feed water treatment and advanced treatment of sewage/wastewater at present, membrane pollution is always a bottleneck problem which hinders further popularization and application of the reverse osmosis membrane process, frequent chemical cleaning is usually accompanied during operation in order to ensure the operation performance and the quality of produced water, the frequent chemical cleaning not only can generate secondary pollution but also can shorten the service life of the membrane, and also in order to achieve the effect of reducing the membrane pollution, a complex pretreatment process is needed to meet the requirement of reverse osmosis inlet water quality, and a huge and complicated pretreatment system increases the occupied area of a device, the operation cost of the equipment is also increased, so that how to improve the anti-pollution performance of the reverse osmosis membrane system so that the reverse osmosis membrane system can still keep stable and good operation performance under wider water inlet conditions is a problem to be solved at present, and therefore a wide-flow-channel reverse osmosis membrane is needed to improve the problem.

Disclosure of Invention

An object of the utility model is to provide a wide runner reverse osmosis membrane to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a wide-flow-channel reverse osmosis membrane comprises an outer adhesive tape layer, a reverse osmosis membrane and a central core tube, wherein the outer surface of the reverse osmosis membrane is wrapped by the outer adhesive tape layer, the reverse osmosis membrane comprises a first dense layer and a second dense layer, a base film is arranged between the first dense layer and the second dense layer, the inner part of the reverse osmosis membrane is penetrated and provided with the central core tube, a raw water diversion net is arranged between the central core tube and the reverse osmosis membrane, one side, close to the raw water diversion net, of the second dense layer is provided with a thick water wide flow channel, the wide flow channel comprises a first flow channel and a second flow channel, a plurality of groups of permeation holes are formed in the central core tube, one end of the central core tube is fixedly provided with a sealing cover, one end, close to the sealing cover, of the central core tube is provided with a raw water, one end of the core tube close to the anti-seepage ring is provided with a concentrated water flow direction and a product water flow direction.

Preferably, the width of the concentrated water wide flow channel is set to be 30 mil.

Preferably, the inner wall of the core tube is provided with an activated carbon anion layer.

Preferably, a product water flow channel is arranged on one side, close to the base film, of the first dense layer.

Preferably, the sealing cover and the central pipe are in threaded connection, and a sealing ring is arranged between the sealing cover and the central pipe.

Preferably, the first dense layer, the second dense layer and the base film are respectively mainly made of aromatic polyamide and polysulfone, and the first dense layer, the second dense layer and the base film are all arranged at forty-five degrees.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, during the use, the wide runner of dense water through setting up shows lower flux attenuation after long-term operation, longer operating duration, higher flux recovery rate and the more extensive requirement of intaking after the low pressure is washed, and set up the wide runner of dense water into the improvement of 50mil further increase runner width to membrane antipollution, improve the flow field distribution of dense water side, slow down the pollutant in the accumulation of dense water side membrane face, and with the first compact layer, second compact layer and base film all are forty-five degrees settings and make the desalination rate and the rate of recovery of integrated device all increase substantially, can be to the further absorption that carries out the peculiar smell of the product water after the separation through the active carbon anion layer that sets up at the well core tube inner wall simultaneously, more be favorable to improving the play water quality of its product water.

2. In the utility model, when in use, the user gives appropriate pressure to the raw water required to be purified and separated, and the raw water flow direction is led in from one end of the integral device through the setting, and the raw water flow guide net is used for guiding the raw water, when the permeation reaches balance, the liquid level of the concentrated solution side is higher than the liquid level of the dilute solution by a certain height, namely, a pressure difference is formed, the pressure difference is osmotic pressure, if the pressure which is larger than the osmotic pressure is exerted on one side of the concentrated solution, the flowing direction of the solvent is opposite to the original permeating direction, the flow from the concentrated solution to one side of the dilute solution is started, so that the set reverse osmosis membrane effectively separates the raw water into the product water and the concentrated water, and the separated concentrated water flows through the set product water flow passage and the concentrated water flow passage respectively, and the separated concentrated water can be derived from the concentrated water flow direction along with the trend, and the product water can pass through the permeation hole through the product water channel to enter the core tube and is guided out through the product water flow direction, so that the raw water is purified and separated, and dissolved salts, colloids, microorganisms, organic matters and the like in the water can be effectively removed. The system has the advantages of good water quality, low energy consumption, no pollution, simple process, simple and convenient operation and the like, and the first dense layer, the second dense layer and the base membrane are respectively mainly made of aromatic polyamide and polysulfone, so that the reverse osmosis membrane has the characteristics of good desalting performance and high mechanical strength, is favorable for reducing dragging pressure, eliminates a transition zone, has good compression resistance and sealing performance, and has stable chemical performance, no toxicity and biological degradation resistance.

Drawings

FIG. 1 is a schematic view of the overall external structure of the present invention;

FIG. 2 is a schematic view of the overall internal structure of the present invention;

FIG. 3 is an enlarged schematic view of a second dense layer according to the present invention;

in the figure: 1-an adhesive tape outer layer, 2-a reverse osmosis membrane, 3-a first dense layer, 4-a base membrane, 5-a second dense layer, 6-a penetration hole, 7-a central core pipe, 8-a concentrated water flow direction, 9-a product water flow direction, 10-an anti-seepage ring, 11-a sealing cover, 12-a raw water flow direction, 13-a raw water sealing ring, 14-a concentrated water wide flow passage, 15-a first flow passage, 16-a second flow passage and 17-a raw water diversion net.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

the utility model provides a wide runner reverse osmosis membrane, includes the outer 1 of sticky tape, reverse osmosis membrane 2 and well core pipe 7, reverse osmosis membrane 2's surface parcel has the outer 1 of sticky tape, reverse osmosis membrane 2 includes first dense layer 3 and second dense layer 5, be provided with base film 4 between first dense layer 3 and the second dense layer 5, reverse osmosis membrane 2's inside is run through and is set up well core pipe 7, be provided with raw water diversion net 17 between well core pipe 7 and reverse osmosis membrane 2, second dense layer 5 is close to raw water diversion net 17 one side and is provided with dense water wide runner 14, and during the use, through dense water wide runner 14 that sets up show lower flux decay after long-term operation, longer operating time, higher flux recovery rate and the more extensive water requirement of intaking after the low pressure is washed to set up dense water wide runner 14 and further increase the improvement of runner width to membrane antipollution for 30 mils, the flow field distribution of the concentrated water side is improved, accumulation of pollutants on the membrane surface of the concentrated water side is slowed down, the first dense layer 3, the second dense layer 5 and the base membrane 4 are all arranged in a forty-five degree mode, so that the desalination rate and the recovery rate of the whole device are greatly improved, meanwhile, the active carbon anion layer arranged on the inner wall of the central tube 7 can further adsorb peculiar smell of separated product water, the improvement of the water outlet quality of the product water is facilitated, the wide flow channel 14 comprises a first flow channel 15 and a second flow channel 16, a plurality of groups of permeation holes 6 are formed in the central tube 7, a sealing cover 11 is fixedly arranged at one end of the central tube 7, the raw water flow direction 12 is arranged at one end of the central tube 7 close to the sealing cover 11, a raw water sealing ring 13 is sleeved at one end of the rubber belt outer layer 1 close to the sealing cover 11, two groups of anti-seepage rings 10 are sleeved at one end of, when the device is used, a user applies appropriate pressure to raw water to be purified and separated, the raw water is guided from one end of the integral device through the set raw water flow direction 12 and is guided through the set raw water guide net 17, when the permeation reaches balance, the liquid level of the concentrated solution side is higher than the liquid level of the dilute solution by a certain height, namely a pressure difference is formed, the pressure difference is osmotic pressure, if pressure larger than the osmotic pressure is applied to the concentrated solution side, the flowing direction of a solvent is opposite to the original permeating direction, the solvent starts to flow from the concentrated solution to the dilute solution side, so that the set reverse osmosis membrane 2 effectively separates the raw water from the concentrated water, and simultaneously flows through the set product water flow passage and the concentrated water wide flow passage 14 respectively, and the separated concentrated water flows through the concentrated water wide flow passage 14 and is guided out from the concentrated water flow to the 8, and the product water can pass through the permeation hole 6 through the product water channel to enter the central core pipe 7 and is guided out through the product water flow direction 9, so that the purification and separation of the raw water are completed, and the dissolved salts, colloids, microorganisms, organic matters and the like in the water can be effectively removed. The system has the advantages of good water quality, low energy consumption, no pollution, simple process, simple and convenient operation and the like, and the first dense layer 3, the second dense layer 5 and the base membrane 4 are respectively mainly made of aromatic polyamide and polysulfone, so that the reverse osmosis membrane has the characteristics of good desalination performance and high mechanical strength, is favorable for reducing dragging pressure, eliminates a transition zone, has good compression tightness, and has stable chemical performance, no toxicity and biological degradation resistance.

The utility model discloses the theory of operation: when in use, a user applies proper pressure to raw water to be purified and separated, the raw water is guided from one end of the integral device through the arranged raw water flow direction 12 and is guided through the arranged raw water guide net 17, when the osmosis reaches balance, the liquid level of the concentrated solution side is higher than the liquid level of the dilute solution by a certain height, namely, a pressure difference is formed, the pressure difference is osmotic pressure, if pressure which is higher than the osmotic pressure is applied to the concentrated solution side, the flowing direction of the solvent is opposite to the original osmosis direction, the solvent starts to flow from the concentrated solution to the dilute solution side, so that the arranged reverse osmosis membrane 2 effectively separates the raw water into product water and concentrated water, and simultaneously the product water and the concentrated water flow respectively flow through the arranged product water flow passage and the concentrated water wide flow passage 14, the separated concentrated water flows through the concentrated water wide flow passage 14 and is guided out from the concentrated water flow to the middle core pipe 7 through the product water passage and the permeation hole 6, the device has the advantages that the device is simple in structure, the width of a flow channel is further increased, the anti-pollution performance of the membrane is improved, the flow field distribution of the concentrated water side is improved, the accumulation of pollutants on the membrane surface of the concentrated water side is slowed down, and the device has certain popularization value.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a wide runner reverse osmosis membrane, includes sticky tape skin (1), reverse osmosis membrane (2) and well core pipe (7), its characterized in that: the outer surface of the reverse osmosis membrane (2) is wrapped by an adhesive tape layer (1), the reverse osmosis membrane (2) comprises a first dense layer (3) and a second dense layer (5), a base membrane (4) is arranged between the first dense layer (3) and the second dense layer (5), a middle core pipe (7) is arranged in the reverse osmosis membrane (2) in a penetrating mode, a raw water diversion net (17) is arranged between the middle core pipe (7) and the reverse osmosis membrane (2), a concentrated water wide flow channel (14) is arranged on one side, close to the raw water diversion net (17), of the second dense layer (5), the wide flow channel (14) comprises a first flow channel (15) and a second flow channel (16), a plurality of groups of permeation holes (6) are formed in the middle core pipe (7), a sealing cover (11) is fixedly mounted at one end of the middle core pipe (7), and a raw water flow direction (12) is arranged at one end, close to the middle core pipe (, sticky tape outer layer (1) is close to sealed lid (11) pot head and is equipped with raw water sealing washer (13), sealed lid (11) one of keeping away from is served in well core pipe (7) and is equipped with two sets of prevention of seepage rings (10) to the cover, the one end that well core pipe (7) are close to prevention of seepage rings (10) is provided with concentrated water flow to (8), product water flow to (9).

2. The wide flow channel reverse osmosis membrane of claim 1, wherein: the width of the concentrated water wide flow passage (14) is set to be 30 mil.

3. The wide flow channel reverse osmosis membrane of claim 1, wherein: the inner wall of the core tube (7) is provided with an active carbon anion layer.

4. The wide flow channel reverse osmosis membrane of claim 1, wherein: and a product water flow channel is arranged on one side of the first dense layer (3) close to the base film (4).

5. The wide flow channel reverse osmosis membrane of claim 1, wherein: the sealing cover (11) and the central core pipe (7) are in threaded and spiral connection, and a sealing ring is arranged between the sealing cover and the central core pipe.

6. The wide flow channel reverse osmosis membrane of claim 1, wherein: the first dense layer (3), the second dense layer (5) and the base film (4) are respectively mainly made of aromatic polyamide and polysulfone, and the first dense layer (3), the second dense layer (5) and the base film (4) are arranged at forty-five degrees.