CN208694721U - A kind of wound membrane element - Google Patents
A kind of wound membrane element Download PDFInfo
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- CN208694721U CN208694721U CN201820789057.8U CN201820789057U CN208694721U CN 208694721 U CN208694721 U CN 208694721U CN 201820789057 U CN201820789057 U CN 201820789057U CN 208694721 U CN208694721 U CN 208694721U
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- water
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Abstract
The utility model discloses a kind of wound membrane elements, including center water producing pipe, and it is wrapped at least one set of water purification diaphragm group on the water producing pipe of center, the water purification diaphragm group includes a production water flow-guiding screen, two Separation membranes and a raw water flow-guiding screen, it is raw water runner between two Separation membrane inner surfaces, to produce water flow passage between the outer surface of two Separation membranes, the raw water flow-guiding screen is arranged in raw water runner, and the production water flow-guiding screen setting is in producing water flow passage.The more traditional wound membrane element of the utility model differs to the raw water flow-guiding screen in membrane component and produces water flow-guiding screen to carry out hydrophilic polymer coating modified, it increases raw water flow-guiding screen and produces the hydrophily of water flow-guiding screen, the effective water that improves is to the flushing effect of membrane surface and the water conservancy diversion speed of water purification, come reach improve membrane component salt rejection rate and flux, increase the purpose of the stain resistance of membrane component.
Description
Technical field
The utility model relates to a kind of membrane component, belong to filter technology field in purifier.
Background technique
The principle of film filtering is the process sieved using the pore size of film, is driving with the pressure difference of film two sides
Power, using film as filter medium, stoste flows through film surface under pressure, and the micropore of film surface only allows water and small molecule object
Matter is by becoming permeate, and the liquid feeding side that the substance that partial size is greater than film surface micropore in stoste is then trapped within film becomes dense
Contracting liquid realizes the separation and concentration of stoste.
Existing wound membrane element generallys use plastic wire as aquaporin filter is given, and the purpose is to provide one for water inlet
As close possible to the access of turbulent flow, make to be parallel to membrane component direction between rolling diaphragm into water and sufficiently flow, and is producing water flow
Using plastic wire as aquaporin is produced in road, water is produced along longitudinal circulation perpendicular to membrane component and flows into central tube.It is more in the market
Number wound membrane elements using produce water flow passage in production water perpendicular to the vertical wraparound one-way flow of membrane component by the way of, production water ring around
Membrane component to central tube flow and finally collect and be directed to the production water collection pipe outside membrane component by central tube, because
This, directly influences the flux magnitude of membrane component to aquaporin filter and the material for producing the production aquaporin in water flow passage.
With extensive utilization of the membrane component in industrial production and the water treatment procedure of daily life, people are for membrane component
Performance requirement be also constantly to improve, be contemplated for high throughput, equipment with high desalinization, low consumption and the strong membrane component of stain resistance.
And processing scheme conventional at present is so that membrane component is had equipment with high desalinization, low consumption and resistant by improving the performance of diaphragm
The advantages that metachromia is strong, but these processing modes act on more and more unobvious with the continuous promotion of diaphragm performance itself.
Utility model content
In view of the problems of the existing technology, the utility model proposes the rolling membrane elements that one kind can effectively improve permeant flux
Part.
The utility model solves the technical solution of the above technical problem: a kind of wound membrane element, including center water producing pipe, with
And it is wrapped at least one set of water purification diaphragm group on the water producing pipe of center；The water purification diaphragm group includes production water flow-guiding screen, two
Open Separation membrane and a raw water flow-guiding screen；It is raw water runner, two seperation films between two Separation membrane inner surfaces
It is production water flow passage between the outer surface of piece；The raw water flow-guiding screen is arranged in raw water runner；The production water flow-guiding screen setting
In producing water flow passage；The center water producing pipe is equipped with axial inner hole, and tube wall is equipped with multiple limbers for being connected to its inner hole；
The inner hole of the center water producing pipe is closed at one end, and the other end is equipped with water purification outlet, and it is close to be equipped with water purification outlet at the water purification outlet
Seal.
Further, flow direction of the raw water in water purification diaphragm group is parallel with the axis of center water producing pipe.
Further, the production water flow passage in every group of water purification diaphragm group is connected to the limbers on the water producing pipe of center.
Further, a part of abutting center for producing water flow-guiding screen or producing water flow passage of the water purification diaphragm group produces water
Pipe is in rectangle after the production water flow passage expansion, and the limbers of rectangle connection center water producing pipe keeps clear on one side, excess-three
It is closed by adhesive bond on side.
Further, two Separation membranes Yu center water producing pipe of every group of water purification diaphragm group are produced parallel and close to center
The side of water pipe passes through adhesive bond.
Further, the Separation membrane of the water purification diaphragm group is reverse osmosis membrane or nanofiltration membrane or ultrafiltration membrane.
Further, the lateral surface of the water purification diaphragm group is wound with sealant tape, and the outside of the sealant tape is equipped with Y
Type sealing collar.
Further, the raw water flow-guiding screen and production water flow-guiding screen are by the coating modified of water-soluble high-molecular material
's.Comprising the following steps:
S1: a certain amount of water-soluble high-molecular material is added to heating in quantitative ultrapure water and is made it dissolve, after dissolution
It is cooling；
S2: raw water flow-guiding screen and production water flow-guiding screen are dipped into aqueous solution made from S1 and are taken out after a certain period of time, and is put
Enter baking oven, is taken out after being heated under certain condition；
S3: soaking in certain density crosslinking agent and catalyst, heats under the conditions of certain temperature, obtains hydrophilic coating
By raw water flow-guiding screen and produce water flow-guiding screen.
Further, the water-soluble high-molecular material includes but is not limited to polyvinyl alcohol (PVA), polyethylene glycol (PEG),
Polyethylene pyrrole network alkanone (PVP), polyacrylic acid (PAA), polyethylene glycol oxide (PEO) etc..
Further, the water-soluble high-molecular material should have high temperature water-soluble, and room temperature is insoluble in water, crosslinkable
Property.
The utility model has the beneficial effects that the more traditional wound membrane element of the utility model is differed to membrane element
Raw water flow-guiding screen and production water flow-guiding screen in part carry out hydrophilic polymer coating and are modified, and increase raw water flow-guiding screen and produce water and lead
The water conservancy diversion speed of the hydrophily of drift net, the effective flushing effect for improving membrane surface water and water purification, to reach raising membrane element
The salt rejection rate and flux of part, increase the purpose of the stain resistance of membrane component.The utility model has carried out raw water flow-guiding screen hydrophilic
Property it is modified, adsorbed to reduce hydrophobic contaminant in the deposition of raw water net and film surface, increase raw water to film surface
Flushing effect reduces the concentration of the salt water on diaphragm surface layer, increases the salt rejection rate of membrane component, enhances stain resistance.Produce water
The increased hydrophilicity of flow-guiding screen can allow water purification to be easier to pass through, and be conducive to promote pure water flux.
Detailed description of the invention
In order to be easier to understand the technical solution of the utility model and beneficial technical effect, by referring to showing in the accompanying drawings
The present invention is described in detail in specific embodiment of the present utility model out.It is practical new that these attached drawings depict only this
The exemplary embodiment of type does not constitute the limitation to the protection scope of the utility model, in which:
Fig. 1 is the structure explanation of the utility model embodiment 1.
Fig. 2 is the appearance diagram of the utility model embodiment 1.
Fig. 3 is that the structure expansion of the embodiments of the present invention 1 and pure water flow to schematic diagram.
Fig. 4 is that the structure expansion of the embodiments of the present invention 1 and raw water flow to schematic diagram.
In Fig. 1~4: 1. center water producing pipes；2. water purification diaphragm group；3. Separation membrane；4. raw water flow-guiding screen；5. producing water water conservancy diversion
Net；6. limbers；7. binder；8. sealant tape；9.Y type sealing ring；10. water purification outlet sealing ring；11. producing water flow passage；12.
Water purification outlet；13. raw water runner.
Specific embodiment
Embodiment 1
As shown in Figures 1 to 4, the present embodiment provides a kind of wound membrane elements, including center water producing pipe 1, and are wrapped in
At least one set of water purification diaphragm group 2 on the water producing pipe of center；The water purification diaphragm group 2 includes production water flow-guiding screen 5, two separation
Diaphragm 3 and a raw water flow-guiding screen 4, the self-control diaphragm doubling that two Separation membranes 3 are long 1m wide 0.32m form；Described two
It is raw water runner 13 between 3 inner surface of Separation membrane, is to produce water flow passage 11 between the outer surface of two Separation membranes 3；Institute
It states raw water flow-guiding screen 4 to be arranged in raw water runner 13, with a thickness of 0.5mm, length 51cm, width 0.32m；The production water is led
The setting of drift net 5 is in producing water flow passage 11；The center water producing pipe 1 is equipped with axial inner hole, and tube wall is connected to it equipped with multiple
The limbers 6 of inner hole；The inner hole of the center water producing pipe 1 is closed at one end, and the other end is equipped with water purification outlet 12, the water purification outlet
Water purification outlet sealing ring 10 is equipped at 12.
Flow direction of the raw water in the water purification diaphragm group 2 is parallel with the axis of the center water producing pipe 1.Every group of water purification
Production water flow passage 11 in diaphragm group 2 is connected to the limbers 6 on center water producing pipe 1.The production water flow-guiding screen of the water purification diaphragm group 2
5 or produce a part of abutting center water producing pipe of water flow passage 11, the productions water flow passage 11 be unfolded after be in rectangle, during which is connected to
The limbers 6 of heart water producing pipe 1 keeps clear on one side, and excess-three side passes through the bonding closing of binder 7.Every group of water purification diaphragm
Two Separation membranes 3 of group 2 pass through binder 7 parallel and close to the side of center water producing pipe 1 with center water producing pipe 1 and bond.
The Separation membrane 3 of the water purification diaphragm group 2 is reverse osmosis membrane or nanofiltration membrane or ultrafiltration membrane.In this way, by water purification diaphragm described in five groups
Group 2 is wound into center water producing pipe 1, and outside is sealed with sealant tape 8, and the outside of the sealant tape 8 is equipped with Y type sealing collar 9.Institute
Stating raw water flow-guiding screen 4 and producing water flow-guiding screen 5 is by the coating modified of water-soluble high-molecular material.It specifically include following step
It is rapid:
S1: the polyvinyl alcohol (PVA) of 1kg alcoholysis degree 98% is measured, is added in the ultrapure water of 50KG and is heated to 100 DEG C simultaneously
It stirs to dissolve, it is cooling after dissolution；
S2: it will be taken out after 1h in the aqueous solution for the PVA that raw water flow-guiding screen and production water flow-guiding screen are dipped into preparation, and be put into baking
Case takes out after heating 1h under the conditions of 80 DEG C；
S3: after immersing 3% glutaraldehyde and 0.5% aqueous sulfuric acid 30s, 3min is heated under the conditions of 100 DEG C, obtains hydrophily
Coating by raw water flow-guiding screen and produce water flow-guiding screen.
The water-soluble high-molecular material includes but is not limited to polyvinyl alcohol (PVA), polyethylene glycol (PEG), polyethylene pyrrole
Network alkanone (PVP), polyacrylic acid (PAA), polyethylene glycol oxide (PEO).
The hydrophilic coating material should have high temperature water-soluble, and room temperature is insoluble in water, crosslinkable property.
The test situation of the wound membrane element of the present embodiment is as follows:
Use certain city municipal tap water straight as raw water the membrane component of the two panels 1812-50G rolled without coating treatment
Test is connect, the test result under the conditions of 0.41MPa pressure, 20% rate of recovery are as follows: when 25 DEG C of normal temperatures, water flux 165mL/
Min, salt rejection rate 98%；The membrane component water flux of the two panels 1812-50G rolled by coating treatment is 190mL/min, desalination
Rate 99%.After follow-on test 180 days as the result is shown: non-modified membrane component water flux decline 35%, salt rejection rate 95%；It applies
The modified membrane component water flux decline 5% of layer, salt rejection rate 98%.Show that raw water flow-guiding screen and production water flow-guiding screen change through hydrophilic coating
After property, water flux, salt rejection rate and the anti-pollution ability of film are improved in various degree.
Above specific embodiment has carried out further in detail the purpose of this utility model, technical scheme and beneficial effects
It describes in detail bright, it should be understood that the above are only specific embodiments of the present invention, it is practical new to be not limited to this
Type, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done should be included in this
Within the protection scope of utility model.
Claims (4)
1. a kind of wound membrane element, which is characterized in that including center water producing pipe, and be wrapped on the water producing pipe of center at least one
Group water purification diaphragm group；The water purification diaphragm group includes a production water flow-guiding screen, two Separation membranes and a raw water flow-guiding screen；Institute
Stating is raw water runner between two Separation membrane inner surfaces, produces water flow passage between the outer surface of two Separation membranes；Institute
Raw water flow-guiding screen is stated to be arranged in raw water runner；The production water flow-guiding screen setting is in producing water flow passage；The center water producing pipe is set
There is axial inner hole, and tube wall is equipped with multiple limbers for being connected to its inner hole；The inner hole of the center water producing pipe is closed at one end,
The other end is equipped with water purification outlet, is equipped with water purification outlet sealing ring at the water purification outlet；
Flow direction of the raw water in water purification diaphragm group is parallel with the axis of center water producing pipe；
Production water flow passage in every group of water purification diaphragm group is connected to the limbers on the water producing pipe of center；
A part of abutting center water producing pipe for producing water flow-guiding screen or producing water flow passage of the water purification diaphragm group, the production water flow passage
It is in rectangle after expansion, the limbers of rectangle connection center water producing pipe keeps clear on one side, and excess-three side is viscous by binder
Close closing；
Two Separation membranes of every group of water purification diaphragm group are parallel with center water producing pipe, and equal close to the side of center water producing pipe
Pass through adhesive bond；
The Separation membrane of the water purification diaphragm group is reverse osmosis membrane or nanofiltration membrane or ultrafiltration membrane；
The lateral surface of the water purification diaphragm group is wound with sealant tape, and the outside of the sealant tape is equipped with Y type sealing collar；
Wherein, the production water flow-guiding screen in every group of Separation membrane group has carried out hydrophilic coating；Every group of Separation membrane group
In raw water flow-guiding screen carried out hydrophilic coating.
2. a kind of wound membrane element according to claim 1, which is characterized in that the raw water flow-guiding screen and produce water water conservancy diversion
Net carries out the coating modified of water-soluble high-molecular material.
3. a kind of wound membrane element according to claim 2, which is characterized in that the water-soluble high-molecular material is poly- second
Enol (PVA), polyethylene glycol (PEG), polyethylene pyrrole network alkanone (PVP), polyacrylic acid (PAA), in polyethylene glycol oxide (PEO)
It is a kind of.
4. a kind of wound membrane element according to claim 2, it is characterised in that: the water-soluble high-molecular material should have
High temperature is water-soluble, and room temperature is insoluble in water, crosslinkable property.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820789057.8U CN208694721U (en) | 2018-05-16 | 2018-05-16 | A kind of wound membrane element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820789057.8U CN208694721U (en) | 2018-05-16 | 2018-05-16 | A kind of wound membrane element |
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| Publication Number | Publication Date |
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| CN208694721U true CN208694721U (en) | 2019-04-05 |
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| CN201820789057.8U Active CN208694721U (en) | 2018-05-16 | 2018-05-16 | A kind of wound membrane element |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108744984A (en) * | 2018-05-16 | 2018-11-06 | 南京帝膜净水材料开发有限公司 | A kind of wound membrane element |
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2018
- 2018-05-16 CN CN201820789057.8U patent/CN208694721U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108744984A (en) * | 2018-05-16 | 2018-11-06 | 南京帝膜净水材料开发有限公司 | A kind of wound membrane element |
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