CN204490558U - A kind of filtering membrane - Google Patents
A kind of filtering membrane Download PDFInfo
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- CN204490558U CN204490558U CN201520090345.0U CN201520090345U CN204490558U CN 204490558 U CN204490558 U CN 204490558U CN 201520090345 U CN201520090345 U CN 201520090345U CN 204490558 U CN204490558 U CN 204490558U
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Abstract
The utility model discloses a kind of filtering membrane, comprise set gradually film upper epidermis, film middle level and film layer, the first filtering layer is filled with between described film upper epidermis and described film middle level, the second filtering layer is filled with between described film middle level and described film layer, wherein, described film upper epidermis, film middle level and film layer are respectively equipped with the first fenestra that aperture reduces successively, the second fenestra and tertiary membrane hole, and described film upper epidermis is provided with at least one lug boss between any two the first fenestras.It is high that the utility model has filtration efficiency, and purifying water effect is good, long service life, the advantage of easy cleaning.
Description
Technical field
The utility model relates to water-treatment technology field, is specifically related to a kind of filtering membrane.
Background technology
Along with the discharge of sanitary wastewater and trade effluent, water pollutions seriously causes the objectionable impurities affecting HUMAN HEALTH contained in tap water, underground water and well water also relatively to increase, and boils process, still its objectionable impurities all cannot be got rid of even if rely on.Filtering membrane is a kind of inorganic or macromolecular material with special selective separation function, and fluid partitioning can be become the part that two are not identical, make one or more material permeances wherein thus be isolated, at present, filtering membrane is widely used in wastewater treatment.
Traditional filtering membrane has multiple, as activated carbon filtration, filter pulp filtration etc., be generally single layer filter film, for the objectionable impurities or the impurity that filter differing molecular size, there is the shortcoming that poor filtration effect, filtering membrane easily blocked or cleared up difficulty, and single layer filter film compressive strength is poor, easily break in filtration procedure and cause filtration normally to carry out, the quantity increasing filtering membrane in filtration unit can reduce the probability filtering and cannot normally carry out to a certain extent, but add the head loss of filtration unit, energy consumption is high and filtration efficiency is low.
Utility model content
An object of the present utility model solves at least the problems referred to above and/or defect, and provide the advantage will illustrated at least below.
The utility model also has an object to be to provide a kind of filtering membrane, adopt bed filtration structure to improve filtration efficiency and purifying water effect, by arranging polytetrafluoroethylene floor and make filtering membrane be easy to cleaning along the mode that the fenestra of filtration path filtering membrane reduces gradually on filtering membrane, the protuberance energy stop portions impurity of the film upper epidermis setting of filtering membrane of the present utility model, adds the blocking surface of filtering membrane interception impurity.
In order to realize according to these objects of the present utility model and other advantage, provide a kind of filtering membrane, comprise set gradually film upper epidermis, film middle level and film layer, the first filtering layer is filled with between described film upper epidermis and described film middle level, the second filtering layer is filled with between described film middle level and described film layer, wherein, described film upper epidermis, film middle level and film layer are respectively equipped with the first fenestra that aperture reduces successively, the second fenestra and tertiary membrane hole, and described film upper epidermis is provided with at least one lug boss between any two the first fenestras.
Preferably, described filtering membrane, the upper surface of described film upper epidermis is coated with periostracum and polytetrafluoroethylene floor successively, and upper surface and the lower surface of described film middle level and described film layer are coated with polytetrafluoroethylene floor.
Preferably, described filtering membrane, the inside of described first filtering layer and/or described second filtering layer is provided with the many union yarns be crisscross arranged.
Preferably, described filtering membrane, the aperture of described first fenestra is 0.3-0.4um, and the aperture of the second fenestra is 0.15-0.25um, and the aperture in tertiary membrane hole is 0.05-0.1um.
Preferably, described filtering membrane, the interporal lacuna of described first fenestra is 50%-60%, and the interporal lacuna of the second fenestra is 60%-70%, and the interporal lacuna in tertiary membrane hole is 70%-80%.
Preferably, described filtering membrane, is characterized in that, the material of described first filtering layer is medical stone nano powder core, and the material of described second filtering layer is chitin.
Preferably, described filtering membrane, is characterized in that, the material of described film upper epidermis, film middle level and film layer is silicon carbide ceramics.
The utility model at least comprises following beneficial effect:
The first, filtering membrane is provided with film upper epidermis that trilamellar membrane hole reduces gradually, film middle level and film layer, the impurity contributing to tackling layer by layer variable grain diameter passes through, simultaneously, fenestra reduces to cause hydraulic pressure slightly to increase gradually, purifying water effect is better, in addition, during filtering membrane to be cleaned, clear water is passed through with filtration reverse direction, then fenestra increases gradually, is easy to impurity to wash away, and is provided with at least one protuberance between any two the first fenestras of its film upper epidermis of filtering membrane of the present utility model, add the interception face to impurity in filtered fluid, improve filtration efficiency;
The second, the upper surface of film upper epidermis is coated with periostracum and polytetrafluoroethylene floor successively, periostracum has antibacterial effect, and the impurity that can intercept to a certain extent in filtered fluid, and tetrafluoroethylene has the effect of lubrication, coating is with on filtering membrane, filtering membrane is made to be convenient to clean, and film upper epidermis of the present utility model, film middle level, film layer above and the lower surface of film layer be coated with tetrafluoroethylene, during cleaning, frictional force is little, little to the surging force of filtering membrane, extend the work-ing life of filtering membrane to a certain extent;
Three, the inside of the first filtering layer and/or the second filtering layer is provided with the many union yarns be crisscross arranged, and enhances the resistance to pressure of the first filtering layer and the second filtering layer, extends the work-ing life of filtering membrane;
Four, the aperture of described first fenestra is 0.3-0.4um, can remove colloid, suspended particle and planktonic organism, carries out clarification and the filtration of general filtered fluid; The aperture of the second fenestra is 0.15-0.25um, under the pressure difference effect of film both sides, only allows the small molecules less than the second fenestra aperture and current to pass through, can remove the larger macromolecule organic of diameter, thalline etc.; The aperture in tertiary membrane hole is 0.05-0.1um, removing small organic molecule, thalline, further clarification filtration fluid;
Five, filtering membrane increases gradually along the interporal lacuna of its filtering direction, slow down the both sides differential pressure of membrane that membrane pore size reduces to cause gradually excessive, is convenient to filtered fluid and passes through, reduce the surging force to filtering membrane;
Six, medical stone is porous sponge shape structure, and to heavy metal ion in water with cause harmful toxin and have very strong adsorptive power, its adsorption rate is 20000 times of equal surface area activated carbon; And chitin high molecular weight material, adsorptive power is also very strong, with undersaturated cationic group in its molecular structure, has powerful adsorption to electronegative all kinds of material, microorganism can be suppressed preferably to stop it to pass through the second filtering layer;
Seven, silicon carbide ceramics has good oxidation-resistance, rotproofness and high wear resistance, and frictional coefficient is low, as filtering membrane, easy to clean, and long service life.
Part is embodied by explanation below by other advantage of the present utility model, target and feature, part also will by research and practice of the present utility model by those skilled in the art is understood.
Accompanying drawing explanation
Fig. 1 is the structural representation of filtering membrane described in the utility model;
Fig. 2 is the structural representation of union yarn in the first filtering layer described in the utility model or the second filtering layer.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, can implements according to this with reference to specification sheets word to make those skilled in the art.
Should be appreciated that used hereinly such as " to have ", other element one or more do not allotted in " comprising " and " comprising " term or the existence of its combination or interpolation.
Fig. 1 shows a kind of way of realization of the present utility model, a kind of filtering membrane, comprise the film upper epidermis 1 set gradually, film middle level 2 and film layer 3, the first filtering layer 4 is filled with between described film upper epidermis 1 and described film middle level 2, the second filtering layer 5 is filled with between described film middle level 2 and described film layer 3, wherein, described film upper epidermis 1, film middle level 2 and film layer 3 are respectively equipped with the first fenestra 11 that aperture reduces successively, second fenestra 21 and tertiary membrane hole 31, the impurity contributing to tackling layer by layer variable grain diameter passes through, simultaneously, fenestra reduces to cause hydraulic pressure slightly to increase gradually, purifying water effect is better, in addition, during filtering membrane to be cleaned, clear water is passed through with filtration reverse direction, then fenestra increases gradually, impurity is easy to wash away, and described film upper epidermis 1 is provided with at least one lug boss 12 between any two the first fenestras 11, add the interception face to impurity in filtered fluid, improve filtration efficiency.
In another embodiment, described filtering membrane, the upper surface of described film upper epidermis 1 is coated with periostracum and polytetrafluoroethylene floor successively, and upper surface and the lower surface of described film middle level 2 and described film layer 3 are coated with polytetrafluoroethylene floor.Periostracum has antibacterial effect, and can intercept the impurity in filtered fluid to a certain extent, and tetrafluoroethylene has the effect of lubrication, and during cleaning, frictional force is little, little to the surging force of filtering membrane, extends the work-ing life of filtering membrane to a certain extent.
In another embodiment, as shown in Figure 2, described filtering membrane, the inside of described first filtering layer 4 and/or described second filtering layer 5 is provided with the many union yarns be crisscross arranged 6, enhance the resistance to pressure of the first filtering layer and the second filtering layer, extend the work-ing life of filtering membrane.
In another embodiment, described filtering membrane, the aperture of described first fenestra 11 is 0.3-0.4um, can remove colloid, suspended particle and planktonic organism, carries out clarification and the filtration of general filtered fluid; The aperture of the second fenestra 21 is 0.15-0.25um, under the pressure difference effect of film both sides, only allows the small molecules less than the second fenestra aperture and current to pass through, can remove the larger macromolecule organic of diameter, thalline etc.; The aperture in tertiary membrane hole 31 is 0.05-0.1um, removing small organic molecule, thalline, further clarification filtration fluid.
In another embodiment, described filtering membrane, the interporal lacuna of described first fenestra 11 is 50%-60%, and the interporal lacuna of the second fenestra 21 is 60%-70%, and the interporal lacuna in tertiary membrane hole 31 is 70%-80%.Filtering membrane increases gradually along the interporal lacuna of its filtering direction, slow down the both sides differential pressure of membrane that membrane pore size reduces to cause gradually excessive, is convenient to filtered fluid and passes through, reduce the surging force to filtering membrane.
In another embodiment, described filtering membrane, the material of described first filtering layer 4 is medical stone nano powder core, and the material of described second filtering layer 5 is chitin.Medical stone is porous sponge shape structure, and to heavy metal ion in water with cause harmful toxin and have very strong adsorptive power, its adsorption rate is 20000 times of equal surface area activated carbon; And chitin high molecular weight material, adsorptive power is also very strong, with undersaturated cationic group in its molecular structure, has powerful adsorption to electronegative all kinds of material, microorganism can be suppressed preferably to stop it to pass through the second filtering layer.
In another embodiment, described filtering membrane, the material of described film upper epidermis 1, film middle level 2 and film layer 3 is silicon carbide ceramics.Silicon carbide ceramics has good oxidation-resistance, rotproofness and high wear resistance, and frictional coefficient is low, as filtering membrane, easy to clean, and long service life.
Although embodiment of the present utility model is open as above, but it is not restricted to listed in specification sheets and embodiment utilization, it can be applied to various applicable field of the present utility model completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the utility model is not limited to specific details and illustrates here and the legend described.
Claims (7)
1. a filtering membrane, it is characterized in that, comprise set gradually film upper epidermis, film middle level and film layer, the first filtering layer is filled with between described film upper epidermis and described film middle level, the second filtering layer is filled with between described film middle level and described film layer, wherein, described film upper epidermis, film middle level and film layer are respectively equipped with the first fenestra that aperture reduces successively, the second fenestra and tertiary membrane hole, and described film upper epidermis is provided with at least one lug boss between any two the first fenestras.
2. filtering membrane as claimed in claim 1, it is characterized in that, the upper surface of described film upper epidermis is coated with periostracum and polytetrafluoroethylene floor successively, and upper surface and the lower surface of described film middle level and described film layer are coated with polytetrafluoroethylene floor.
3. filtering membrane as claimed in claim 2, it is characterized in that, the inside of described first filtering layer and/or described second filtering layer is provided with the many union yarns be crisscross arranged.
4. filtering membrane as claimed in claim 3, it is characterized in that, the aperture of described first fenestra is 0.3-0.4um, and the aperture of the second fenestra is 0.15-0.25um, and the aperture in tertiary membrane hole is 0.05-0.1um.
5., as the filtering membrane as described in arbitrary in claim 1-4, it is characterized in that, the interporal lacuna of described first fenestra is 50%-60%, and the interporal lacuna of the second fenestra is 60%-70%, and the interporal lacuna in tertiary membrane hole is 70%-80%.
6. filtering membrane as claimed in claim 5, it is characterized in that, the material of described first filtering layer is medical stone nano powder core, and the material of described second filtering layer is chitin.
7. filtering membrane as claimed in claim 6, is characterized in that, the material of described film upper epidermis, film middle level and film layer is silicon carbide ceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520090345.0U CN204490558U (en) | 2015-02-09 | 2015-02-09 | A kind of filtering membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520090345.0U CN204490558U (en) | 2015-02-09 | 2015-02-09 | A kind of filtering membrane |
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| Publication Number | Publication Date |
|---|---|
| CN204490558U true CN204490558U (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520090345.0U Expired - Fee Related CN204490558U (en) | 2015-02-09 | 2015-02-09 | A kind of filtering membrane |
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| CN (1) | CN204490558U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334446A (en) * | 2016-08-30 | 2017-01-18 | 江苏嘉恒环境科技有限公司 | Sewage treatment membrane |
| CN107694350A (en) * | 2017-11-22 | 2018-02-16 | 奥王建筑材料科技有限公司 | A kind of wall facing mortar special filtering film |
| CN108862685A (en) * | 2018-08-10 | 2018-11-23 | 安徽原野滤材有限公司 | A kind of novel nano filter cloth |
| CN109205802A (en) * | 2018-11-22 | 2019-01-15 | 四川大学 | A kind of pair of tailing pollution of vanadium rainfall runoff collects the device and method repaired |
| CN112978987A (en) * | 2021-02-19 | 2021-06-18 | 北京九泉科技有限公司 | Novel water purification unit made of environment-friendly materials |
-
2015
- 2015-02-09 CN CN201520090345.0U patent/CN204490558U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106334446A (en) * | 2016-08-30 | 2017-01-18 | 江苏嘉恒环境科技有限公司 | Sewage treatment membrane |
| CN107694350A (en) * | 2017-11-22 | 2018-02-16 | 奥王建筑材料科技有限公司 | A kind of wall facing mortar special filtering film |
| CN108862685A (en) * | 2018-08-10 | 2018-11-23 | 安徽原野滤材有限公司 | A kind of novel nano filter cloth |
| CN109205802A (en) * | 2018-11-22 | 2019-01-15 | 四川大学 | A kind of pair of tailing pollution of vanadium rainfall runoff collects the device and method repaired |
| CN109205802B (en) * | 2018-11-22 | 2021-09-03 | 四川大学 | Device and method for collecting and restoring vanadium-polluted rainwater runoff |
| CN112978987A (en) * | 2021-02-19 | 2021-06-18 | 北京九泉科技有限公司 | Novel water purification unit made of environment-friendly materials |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20190209 |