CN207562686U - Super strong type ultrafiltration membrane - Google Patents
Super strong type ultrafiltration membrane Download PDFInfo
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- CN207562686U CN207562686U CN201720973333.1U CN201720973333U CN207562686U CN 207562686 U CN207562686 U CN 207562686U CN 201720973333 U CN201720973333 U CN 201720973333U CN 207562686 U CN207562686 U CN 207562686U
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- ultrafiltration membrane
- super strong
- strong type
- filter layer
- type ultrafiltration
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Abstract
The utility model discloses a kind of super strong type ultrafiltration membrane, applied to the technical field of membrane separation in water process.Wherein super strong type ultrafiltration membrane includes at least filter layer, the filter layer micropore filtering film consistent for aperture specification, which is characterized in that at least side of the filter layer is equipped with doughnut supporting layer, and the doughnut supporting layer is bonded with the surface of filter layer.By increasing the doughnut supporting layer being bonded with filter layer, the operating pressure of super strong type ultrafiltration membrane is improved, micropore filtering film operation under higher pressure environment is made to be not easy to that breakage occurs.By increasing doughnut supporting layer, the working strength of ultrafiltration membrane is greatly improved, it is difficult that there is a situation where be broken, ensure that the stability of ultrafiltration membrane long-term work, eliminate the process for more renewing film, increase the economic benefit of enterprise to make ultrafiltration membrane.
Description
Technical field
The utility model is related to a kind of super strong type ultrafiltration membrane, applied to the technical field of membrane separation in water process.
Background technology
Ultrafiltration is mainly used in the preparation and drinking water treatment of pure water, high purity water, and China is then mainly used for industrial circle
Waste water recycling, as reverse osmosis pretreatment.Water and wastewater industry market at home, hyperfiltration technique is in works such as electric power, steel, chemical industry
Industry field of waste water treatment obtains more application.
Ultrafiltration is to filter the solution containing macromolecular or minuteness particle for the ultrafiltration membrane of 1 to 20 nm using aperture, is made big
The process that molecule or minuteness particle are detached from solution is referred to as ultrafiltration.It is using the pressure differential of film both sides as driving force, with ultrafiltration
Film is filter medium, under pressure, small molecule solute and solvent is made to pass through the ultrafiltration membrane of certain pore size, and makes macromolecular
Solute cannot penetrate, and stay in one side of film, so as to achieve the purpose that the purification of solution, separation, with concentrating.It is mainly used for the height that shuts off
Molecule solute.
Ultrafiltration membrane is to complete filter process by driving force of the pressure differential of film both sides, under grossflow filtration pattern, some
Particulate matter more than membrane aperture is accumulated in film surface, causes the congestion of ultrafiltration membrane, is that the resistance of filtering increases, thus film both ends
Pressure differential can also increase, and the deposit of this larger pressure differential and film surface can all bring damage or even be led to ultrafiltration membrane
The fracture distress of ultrafiltration membrane is caused, is allowed to lose the function of filtering.In general, ultrafiltration membrane is after the work of 3 years has been carried out, film
The situation that surface will produce fracture, and scheduled requirement is also not achieved in the pure water filtered out, at this moment just needs to consider more to renew
Ultrafiltration membrane.
Invention content
The technical problems to be solved in the utility model be solve the prior art ultrafiltration membrane compression strength is low, service life compared with
Short technological deficiency.
In order to solve the above-mentioned technical problem, the technical scheme that the utility model is provided is as follows：Super strong type ultrafiltration membrane, is at least wrapped
Filter layer is included, the filter layer micropore filtering film consistent for aperture specification, at least side of the filter layer is equipped with hollow fibre
Supporting layer is tieed up, the doughnut supporting layer is bonded with the surface of filter layer.
A kind of preferred embodiment, the hollow fibre including the two filter layers being oppositely arranged and between two filter layers
Tie up supporting layer.
A kind of preferred embodiment, the material of the filter layer is PVDF.
A kind of preferred embodiment, the doughnut supporting layer are woven by fiber thread rope.
A kind of preferred embodiment, the aperture of the micropore filtering film is 0.001-0.02 μm.
A kind of preferred embodiment, the structure type of the super strong type ultrafiltration membrane be selected from planar film, rolled film, tubular membrane or
Any one in hollow-fibre membrane.
The super strong type ultrafiltration membrane of the present embodiment by increasing the doughnut supporting layer being bonded with filter layer, improves super
The operating pressure of strong type ultrafiltration membrane makes micropore filtering film operation under higher pressure environment be not easy to that breakage occurs.It is logical
Increase doughnut supporting layer is crossed, makes the tensile strength of micropore filtering film more than 5kg is increased to by 300g, this point improvement is very
Considerable, the working strength of ultrafiltration membrane is greatly improved, it is difficult that there is a situation where be broken, ensure that ultrafiltration membrane is long to make ultrafiltration membrane
The stability of phase work, eliminates the process for more renewing film, increases the economic benefit of enterprise.
Description of the drawings
Fig. 1 is the lateral partial structurtes sectional view of the present embodiment super strong type ultrafiltration membrane；
Reference numeral：1- filter layers, 2- doughnut supporting layers.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figure 1, the super strong type ultrafiltration membrane of the present embodiment, is bonded including at least filter layer 1 and with the surface of filter layer 1
Doughnut supporting layer 2.Preferably, the super strong type ultrafiltration membrane includes the two filter layers 1 being oppositely arranged and set on two layers
Doughnut supporting layer 2 between filter layer.
In the present embodiment, the micropore filtering film consistent for aperture specification of filter layer 1, material PVDF（Kynoar）.
Doughnut supporting layer 2 is woven for the fiber thread rope of high-tenacity synthesis by knitting technology.Wherein filter layer 1 and hollow fibre
By epoxy technologies bond between dimension supporting layer 2, combine, micropore filtering film is made uniformly to wrap and is attached to doughnut supporting layer
On 2.It should be noted that the fiber thread rope of high-tenacity synthesis is specific existing for the ordinary skill in the art
Technology can be obtained by buying；Knitting technology and epoxy technologies are also existing technological means, therefore are not done herein specifically
It is bright.
Under normal conditions, the aperture of the micropore filtering film in the present embodiment is 0.001-0.02 μm.Super strong type ultrafiltration membrane
Structure type can make any one structure type in planar film, rolled film, tubular membrane or hollow-fibre membrane.
A kind of preferred embodiment, the structure type of super strong type ultrafiltration membrane are tubular membrane, the thickness of outer layer micropore filtering film
For 0.35 ㎜, aperture specification is 0.02 μm, and internal layer is doughnut supporting layer, and the internal diameter of tubular structure is 0.8 ㎜, and outer diameter is
1.5㎜。
Ultrafiltration membrane is filtered using the pressure differential of film both sides as power, and when flowing through stream entirely, pollutant largely accumulates, and causes
Ultrafiltration membrane blocks, therefore osmotic pressure increases, and the pressure of concentrated water side is also continuously increased, and larger pressure potential must cause ultrafiltration membrane
Damage, therefore adds enhancement layer in ultrafiltration membrane inner surface, solve the problems, such as more than.Doughnut supporting layer as enhancement layer,
Stretching resistance performance and anti-stress energy are provided for ultrafiltration membrane, makes ultrafiltration membrane that damaged fracture will not occur in operating environment, is ensured
The normal operation of ultrafiltration membrane.During concentrated water lateral pressure increase, the compression resistance advantage of super strong type ultrafiltration membrane makes its unaffected；Recoil
When washing, the substances such as colloid, crystal, bacterium of the bulky grain on ultrafiltration membrane are washed under high pressure, and super strong type ultrafiltration membrane relies on
Its excellent tensile property will not be damaged.
In short, the above is only the preferred embodiment of the utility model only, it is not intended to limit the utility model, it is all
All any modification, equivalent and improvement made within spirit of the present utility model and principle etc., should be included in this practicality
Within novel protection domain.
Claims (6)
1. super strong type ultrafiltration membrane, including at least filter layer, the filter layer micropore filtering film consistent for aperture specification, feature
It is, at least side of the filter layer is equipped with the surface of doughnut supporting layer, the doughnut supporting layer and filter layer
Fitting.
2. super strong type ultrafiltration membrane described in accordance with the claim 1, which is characterized in that including the two filter layers being oppositely arranged and set
Doughnut supporting layer between two filter layers.
3. according to the super strong type ultrafiltration membrane described in claims 1 or 2, which is characterized in that the material of the filter layer is PVDF.
4. super strong type ultrafiltration membrane described in accordance with the claim 3, which is characterized in that the doughnut supporting layer is by fiber thread rope
It weaves.
5. according to the super strong type ultrafiltration membrane described in claims 1 or 2 or 4, which is characterized in that the aperture of the micropore filtering film is
0.001-0.02μm。
6. according to the super strong type ultrafiltration membrane described in claims 1 or 2 or 4, which is characterized in that the structure of the super strong type ultrafiltration membrane
Any one of form in planar film, rolled film, tubular membrane or hollow-fibre membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720973333.1U CN207562686U (en) | 2017-08-07 | 2017-08-07 | Super strong type ultrafiltration membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720973333.1U CN207562686U (en) | 2017-08-07 | 2017-08-07 | Super strong type ultrafiltration membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207562686U true CN207562686U (en) | 2018-07-03 |
Family
ID=62697079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720973333.1U Active CN207562686U (en) | 2017-08-07 | 2017-08-07 | Super strong type ultrafiltration membrane |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114534495A (en) * | 2022-03-15 | 2022-05-27 | 湖州森诺氟材料科技有限公司 | Filter membrane for medicine separation and filter device thereof |
-
2017
- 2017-08-07 CN CN201720973333.1U patent/CN207562686U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114534495A (en) * | 2022-03-15 | 2022-05-27 | 湖州森诺氟材料科技有限公司 | Filter membrane for medicine separation and filter device thereof |
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