CN208694726U - A kind of wound membrane element - Google Patents
A kind of wound membrane element Download PDFInfo
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- CN208694726U CN208694726U CN201820789058.2U CN201820789058U CN208694726U CN 208694726 U CN208694726 U CN 208694726U CN 201820789058 U CN201820789058 U CN 201820789058U CN 208694726 U CN208694726 U CN 208694726U
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- water flow
- guiding screen
- membrane
- separation membrane
- raw water
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Abstract
The utility model discloses a kind of wound membrane elements, including center water producing pipe, and at least one set of Separation membrane group being wrapped on the water producing pipe of center；The Separation membrane group includes producing water flow-guiding screen, Separation membrane and raw water flow-guiding screen；The raw water flow-guiding screen is handled by sulfonation, hydrophilic sulfonic acid group in grafting.The utility model has the advantage of, raw water flow-guiding screen by sulfonation processing has good hydrophily, is conducive to passing through for raw water, reduces the concentration and concentration polarization of membrane surface salt water, the anti-fouling performance of membrane component is enhanced, the service life of membrane component is extended.
Description
Technical field
The utility model relates to a kind of wound membrane element, belong to filter technology field in purifier.
Background technique
Wound membrane element is existing market using one of extensive film application form, and with loading, density is big, installs operation
Effective membrane area is larger in easy, compact-sized, unit volume, manufacture craft is relatively easy.Currently, common wound membrane element
It is for seperation film common in fluid separation field, including reverse osmosis membrane, nanofiltration membrane, ultrafiltration membrane, microfiltration membranes etc., Ta Menli
The stalling characteristic having with Separation membrane itself removes certain in fluid or many kinds of substance, reaches the mesh such as purification, concentration, purification
's.
Existing wound membrane element is that plate membrane rolls, including Separation membrane, raw water flow-guiding screen, produce water flow-guiding screen,
Center water producing pipe, adhesive etc..Wound membrane element is different from traditional filtering stream direction to water flowing, and water supply is from membrane component end
Portion introduces, and water supply is flowed along the parallel direction of film surface, is perpendicular to film surface by isolated product water, through in film entrance
Heart water producing pipe, in this way, forming a vertical, lateral cross one another flow direction.The Separation membrane of traditional wound membrane element is flat
Plate shape, so intake tunnel and production aquaporin by raw water flow-guiding screen and produce the offer of water flow-guiding screen respectively, entire membrane component
It is poor to accommodate performance, raw water during by entire membrane component, accumulate in membrane component by pollutant, leads to the stifled of membrane component
Plug shortens the service life of film, increases use cost.
In order to reduce the pollution of membrane component, increase membrane component service life, people attempt that various methods is selected to carry out process film
Element such as improves hydrophily, charged group, the degree of roughness of membrane surface to achieve the purpose that increase membrane component stain resistance
Deng the mode including changing wound membrane.Concentration polarization in membrane component is reduced as changed wound membrane mode in patent CN101708433A, from
And improve the anti-fouling performance of membrane component.
Utility model content
In view of the problems of the existing technology, the utility model proposes a kind of wound membrane elements, by the raw water in membrane component
Flow-guiding screen carries out sulfonation processing, increases the hydrophily of raw water net, is conducive to raw water and passes through, and reduces the brine strength on film surface layer, increases
The anti-pollution ability of blooming element, prolongs the service life.
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 Separation membrane group on the water producing pipe of center；The Separation membrane group includes producing water flow-guiding screen, seperation film
Piece and raw water flow-guiding screen；The raw water flow-guiding screen is handled by sulfonation, in surface grafting sulfonic acid group；The Separation membrane is through rolling over
Raw water runner is formed between poststack inner surface, is formed between outer surface and is produced water flow passage；The raw water flow-guiding screen is arranged in original
In water flow passage, the production water flow-guiding screen setting is in producing water flow passage.
The raw water flow-guiding screen carries out sulfonation processing by the chloroform soln of 0.1-10% (w/w) chlorosulfonic acid.
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；It is described
The inner hole of center water producing pipe is closed at one end, and the other end is equipped with water purification outlet.
A part of abutting center water producing pipe of the production water flow-guiding screen of the Separation membrane group, the productions water flow passage be unfolded after be in
Rectangle, the rectangle are connected to keeping clear on one side for the limbers of the center water producing pipe, and excess-three side is sealed by adhesive bond
It closes.
The lateral surface of the Separation membrane group is wound with sealant tape, and the outside of the sealant tape is equipped with Y type sealing collar.
The Separation membrane of the Separation membrane group is reverse osmosis membrane or nanofiltration membrane or ultrafiltration membrane.
The utility model has the beneficial effects that the utility model is to carry out sulfonation modifying to raw water flow-guiding screen, led in raw water
The surface grafting sulfonic acid group of drift net has good hydrophily by the processed raw water net of sulfonation, used in membrane component
It can be conducive to passing through for raw water in journey；The brine strength on film surface layer is reduced simultaneously, so that the influent density of membrane surface is reduced,
The anti-fouling performance of membrane component is improved, membrane component service life is extended.
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 utility model is described in detail in specific embodiment of the present utility model out.These attached drawings depict only this reality
With novel exemplary embodiment, the limitation to the protection scope of the utility model is not constituted, in which:
Fig. 1 is the structure explanation of the utility model embodiment.
Fig. 2 is the appearance diagram of the utility model embodiment
In figure: 1. center water producing pipes；2. Separation membrane group；3. Separation membrane；4. raw water flow-guiding screen；5. producing water flow-guiding screen；
6. limbers；7. binder；8. sealant tape；9.Y type sealing ring.
Specific embodiment
Embodiment
As shown in Fig. 1 to 2, 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 Separation membrane group 2 on heart water producing pipe 1；The Separation membrane group 2 includes production water flow-guiding screen 5, two separation
Diaphragm 3 and a raw water flow-guiding screen 4, two Separation membranes 3 are that the self-control diaphragm doubling of long 1m, width 0.27m form.
The raw water flow-guiding screen 4 is placed in advance in sulfonation reactor, and three chloromethanes of 1% chlorosulfonic acid are added into reactor
Alkane solution carries out sulfonating reaction 1h at normal temperature under normal pressure, net taking-up is put into 1% sodium hydroxide solution and is neutralized, then with clearly
Water washing is clean, is put into the water of heating, drying net surface in baking oven, and the processed raw water flow-guiding screen of sulfonation is made.
Raw water runner is formed between two Separation membranes, 3 inner surface, between the outer surface of two Separation membranes 3
It is formed and produces water flow passage；The raw water flow-guiding screen 4 is arranged in raw water runner, and the length of raw water flow-guiding screen 4 is 51cm, and width is
0.27m, with a thickness of 0.5mm；In producing water flow passage, the length for producing water flow-guiding screen 5 is 50cm, wide for the setting of production water flow-guiding screen 5
0.27m is spent, with a thickness of 0.3mm；The center water producing pipe 1 is equipped with axial inner hole, and tube wall is equipped with multiple its inner hole of connection
Limbers 6, the inner hole of the center water producing pipe 1 is closed at one end, the other end be equipped with water purification outlet.
Flow direction of the raw water in separated diaphragm group 2 is parallel with the axis of the center water producing pipe 1.Every group of seperation film
Production water flow passage in piece group 2 is connected to the limbers 6 on center water producing pipe 1.The production water flow-guiding screen 5 of the Separation membrane group 2 or
A part of abutting center water producing pipe 1 of water flow passage is produced, is in rectangle after the production water flow passage expansion, which is connected to center water producing pipe
1 limbers 6 keeps clear on one side, and excess-three side passes through the bonding closing of binder 7.In this way, by Separation membrane described in two 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.
Reference examples
Reference examples method for coiling is same as Example 1, the difference is that: raw water flow-guiding screen does not carry out sulfonation in reference examples
Processing.
Technical effect experiment: using Nanjing municipal tap water directly to test as raw water, in the test pressure of 0.41MPa,
It is tested under the conditions of 20% rate of recovery, standard water flux is that water when being corrected to normal temperature (25 DEG C) through temperature coefficient is logical
Amount.The experimental result of the wound membrane element of the present embodiment is as follows:
It can be seen from the results above that the membrane component that the utility model rolls, under the same testing conditions, salt rejection rate are protected
Hold it is basicly stable, flux rate of descent be lower than conventional roll membrane component.
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 (6)
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 Separation membrane group；The Separation membrane group includes producing water flow-guiding screen, Separation membrane and raw water flow-guiding screen；The raw water flow-guiding screen
It is handled by sulfonation, in surface grafting sulfonic acid group；The Separation membrane forms raw water runner after folding between inner surface,
It is formed between outer surface and produces water flow passage；The raw water flow-guiding screen is arranged in raw water runner, and the production water flow-guiding screen setting exists
It produces in water flow passage.
2. a kind of wound membrane element according to claim 1, which is characterized in that the raw water flow-guiding screen by 0.1~
The chloroform soln of 10% (w/w) chlorosulfonic acid carries out sulfonation processing.
3. a kind of wound membrane element according to claim 1, which is characterized in that the center water producing pipe is equipped with the interior of axial direction
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.
4. a kind of wound membrane element according to claim 1, which is characterized in that the production water flow-guiding screen of the Separation membrane group
A part of abutting center water producing pipe, be in rectangle after production water flow passage expansion, which is connected to the logical of the center water producing pipe
Water hole keeps clear on one side, and excess-three side is closed by adhesive bond.
5. a kind of wound membrane element according to claim 1, which is characterized in that the lateral surface of the Separation membrane group is wound
There is sealant tape, the outside of the sealant tape is equipped with Y type sealing collar.
6. a kind of wound membrane element according to claim 1, feature is being with, the Separation membrane of the Separation membrane group
Reverse osmosis membrane or nanofiltration membrane or ultrafiltration membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820789058.2U CN208694726U (en) | 2018-05-16 | 2018-05-16 | A kind of wound membrane element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820789058.2U CN208694726U (en) | 2018-05-16 | 2018-05-16 | A kind of wound membrane element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208694726U true CN208694726U (en) | 2019-04-05 |
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ID=65935583
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820789058.2U Active CN208694726U (en) | 2018-05-16 | 2018-05-16 | A kind of wound membrane element |
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| Country | Link |
|---|---|
| CN (1) | CN208694726U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113526617A (en) * | 2020-04-17 | 2021-10-22 | 韩国商东丽先端素材股份有限公司 | Spiral filtering component |
-
2018
- 2018-05-16 CN CN201820789058.2U patent/CN208694726U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113526617A (en) * | 2020-04-17 | 2021-10-22 | 韩国商东丽先端素材股份有限公司 | Spiral filtering component |
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