CN102464363A - Filtering system - Google Patents
Filtering system Download PDFInfo
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- CN102464363A CN102464363A CN2010105566173A CN201010556617A CN102464363A CN 102464363 A CN102464363 A CN 102464363A CN 2010105566173 A CN2010105566173 A CN 2010105566173A CN 201010556617 A CN201010556617 A CN 201010556617A CN 102464363 A CN102464363 A CN 102464363A
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- filtering system
- solution
- filter substrate
- transfer line
- filtering
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Separation Using Semi-Permeable Membranes (AREA)
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Abstract
The invention provides a filtering system. The filtering system comprises a supply tank, a first transfer pipeline, a second transfer pipeline, multiple filtering boxes, multiple third transfer pipelines and multiple fourth transfer pipelines, wherein a first solution is transferred from the first transfer pipeline and the second transfer pipeline into the supply tank and output from the filtering system; the filtering boxes are accommodated in the supply tank and soaked into the first solution, each filtering box comprises at least one filtering substrate and at least one porous thin film, a runner structure is formed on the surface of each filtering substrate, and each porous thin film is attached on the surface of each filtering substrate and covers the runner structure; and the third transfer pipelines and the fourth transfer pipelines are communicated with the runner structures of the filtering boxes so that a second solution can be transferred into the runner structures through the third transfer pipelines and the fourth transfer pipelines and output to the filtering system.
Description
Technical field
The present invention relates to a kind of filtering system, the filtering system of particularly a kind of sea water desaltination or wastewater treatment.
Background technology
The water crisis is the situation that United Nations and other international organization have been used for making a general reference the relative human's demand of global water resources since 1970; Main crisis source is the scarcity and the water pollution of used water, and therefore how seeking available water resources and solving water pollution is one of various countries' problem of needing solution at present badly.
Prior art is to the problem of water crisis, and various countries are existing at present carries out to modes such as sea water desaltination and filtration trade effluents.Seawater is the maximum resource of quantity on the earth; Comprise inexhaustible, nexhaustible water resources; The development and utilization desalination technology is not only the vital task that modern marine is developed, and also is that the new water source of following exploitation solves one of important channel of global water resources crisis.At present, tellurian water about 97% is seawater, and fresh water has only 3%, and most fresh water is present in earth surface with forms such as glacial epoches, and human Freshwater resources on the face of land capable of using approximately only account for 0.26% of water globe total resources.According to the data that United Nations announces, water resources shortage area is lived in above 1,000,000,000 populations in the whole world at present.And by 2025, this numeral can be soaring to 1,800,000,000, and prior art is for effectively with sea water desaltination; Mostly be to utilize the mode of distillation method to carry out, the practice is after with heat energy the moisture in the seawater being vaporized into water vapour, with the mode of condensation water vapour is formed fresh water; Compile, though this kind technology energy utilization rate is high, the equipment volume of its use is quite huge again; Need very big place place apparatus, therefore, utilize this kind technology and method also to have many problems to be solved.
And on trade effluent, in the production process because of tradition or scientific and technological industry, can the say so lifeline of factory operation of water source is big with respect to the amount of water required; The discharge water yield after the wastewater treatment is also just considerable, and in process of production, understands organic solvent discharging usually; These a little solvents are no matter flow into the rivers and creeks or the ocean, and all therefore harm humans is healthy or influence natural, ecological, if can reclaim part waste water with appropriate means; Except that another stable resource of water supply can be provided, more can reduce total wastewater discharge, can implement effective utilization of water resources; And prior art is to this problem of wastewater treatment, be mostly to adopt membrane process, the practice be with the high pressure mode make water through semi-permeable membranes to obtain fresh water; Though the water outlet removal of impurity that right membrane process is obtained can reach more than 95%, required energy consumption is very big, causes cost also to improve relatively.
In view of this, need a kind of can the solution at present badly and take up an area of the wide technology that reaches the energy consumption problems of too, go to solve present water crisis, with efficient recovery and the utilization that reaches water resources.
Summary of the invention
In order to solve the desirable not to the utmost part of above-mentioned prior art, the present invention provides a kind of filtering system, includes filling tank, first transfer line, second transfer line, a plurality of filtration casket, a plurality of the 3rd transfer line and a plurality of the 4th transfer line.First transfer line is delivered to first solution in the filling tank; And first solution exports to outside the filtering system by second transfer line; The filtration casket is placed in the filling tank and soaks and be located in first solution; Each filters casket and includes at least one filter substrate and at least one porous film, and each filter substrate includes the surface that a flow passage structure is formed at each filter substrate at least, and each porous film is attached at the surface of each filter substrate; And covering flow passage structure; The 3rd transfer line is communicated with the flow passage structure that filters casket with the 4th transfer line, and the 3rd transfer line can be delivered to second solution in the flow passage structure by this, and second solution exports to outside the filtering system by the 4th transfer line again.
Therefore, primary and foremost purpose of the present invention provides a kind of filtering system, includes filling tank, first transfer line, second transfer line, a plurality of filtration casket, a plurality of the 3rd transfer line and a plurality of the 4th transfer line.Utilize the system of said structure combination, the size of filling tank and the quantity of filtering casket can be adjusted according to the place that actual desire is provided with this filtering system, and therefore, filtering system of the present invention can be according to the place being set or the place range size is carried out the design of optimization.
Secondary objective of the present invention provides a kind of filtering system, in carrying out filtering process, utilizes the low order energy such as sun power or any type of used heat as the required thermal source of filtering system.Because the energy that utilizes nature or reclaim again, therefore not only greatly reduce the consumption of the energy, further can reduce cost.
Description of drawings
Fig. 1 is first embodiment that proposes according to the present invention, is a kind of filtering system synoptic diagram.
Fig. 2 is first embodiment that proposes according to the present invention, is a filtration box structure synoptic diagram.
Fig. 3 is first embodiment that proposes according to the present invention, is the runner synoptic diagram in the filter substrate.
[primary clustering nomenclature]
Filling tank 11
First transfer line 12
Second transfer line 13
Filter casket 14
Filter substrate 141
Flow passage structure 1411
Porous film 142
The 3rd transfer line 15
The 4th transfer line 16
Heating unit 17
First solution 21
Second solution 22
Embodiment
Owing to the invention discloses a kind of filtering system, wherein utilized through the film of hydrophobization and hydrophilization in solution, the principle of function capable of using has been that those of ordinary skills can understand, so with hereinafter explanation, no longer do complete description.Simultaneously,, be intended to express the implication of the structure relevant, also do not need, formerly statement according to the complete drafting of physical size with characteristic of the present invention with the accompanying drawing that is hereinafter contrasted.
At first; Please refer to Fig. 1; Be according to preferred embodiment proposed by the invention, be a kind of filtering system 10, filtering system 10 includes filling tank 11, first transfer line 12, second transfer line 13, a plurality of filtration casket 14, a plurality of the 3rd transfer line 15 and a plurality of the 4th transfer lines 16.Wherein first transfer line 12 is delivered to first solution 21 in the filling tank 11; And first solution 21 exports to outside the filtering system 10 by second transfer line 13, and wherein first solution 21 can need further carry out filtering solution for seawater, trade effluent or people's livelihood waste water or other.Filter casket 14 and be placed in the filling tank 11, and what will specify is that the casket 14 that respectively filters in the filling tank 11 needs whole being immersed into fully in first solution 21.Again, filling tank 11 and filtration casket 14 can go to make the size and the adjustment of filtering casket 14 quantity of filling tank 11 according to actual demand.Filtering casket 14, to put into the mode of filling tank 11 also unrestricted, can parallel placement or uprightly put, and wherein preferable with axial disposing way again.In addition; What specify is; First solution 21 constantly circulating filtration uses or filters from first new solution 21 to the filling tank 11 of first transfer line, 12 inputs; And then export to outside the filtering system 10 by second transfer line 12, can actual state and determine that wherein the temperature of first solution 21 can be 10 ℃ to 100 ℃ surely.
Then, please continue, filter casket 14 and include at least one filter substrate 141 and at least one porous film 142 with reference to figure 2.Wherein the area of filter substrate 141, color or shape are unrestricted, in addition, porous film 142 can be the complex body of plain macromolecular material of the plain macromolecular material of fluorine, porousness macromolecular material or fluorine and porousness macromolecular material etc. any.Be that polytetrafluoroethylene film (PTFE) is for preferable wherein with the plain macromolecular material of fluorine.The characteristics such as heat-resisting except possessing, the anti-combustion of this kind polytetrafluoroethylene film, acid and alkali-resistance, weather-proof, drying; The structure that can also make the inner fiber of film produce physics frame lock is held node up and down; Make the phenomenon of this kind polytetrafluoroethylene film generation creep (creep) reduce; And as when the manufacturing of polytetrafluoroethylene film, sneak into activated carbon or other active substance, more can extraly reach the function that purifies water.Seawater that the pore size of porous film 142 changes and porosity can will be handled according to institute or wastewater quality difference and do variation; Is preferable at porous film 142 of the present invention with polytetrafluoroethylene film, wherein the aperture of polytetrafluoroethylene film between between 0.01 μ m to the 15 μ m, the pore fill-in ratio is between 5%～99%, thickness between 1 μ m to 1000 μ m for preferable.
Come again; Please continue with reference to figure 2 and Fig. 3; Filter substrate 141 includes a flow passage structure 1411 at least, and flow passage structure 1411 can be formed at a surface of filter substrate 141 with Any shape, and porous film 142 is attached at the surface of filter substrate 141 and covers flow passage structure 1411.Wherein the juncture of filter substrate 141 and porous film 142 can be to paste mode, hot melting way or high frequency mode etc. any pastes mode, can use according to actual state.The 3rd transfer line 15 is communicated with the flow passage structure 1411 that filters casket 14 with the 4th transfer line 16, and the 3rd transfer line 15 inputs to second solution 22 in the flow passage structure 1411, and second solution 22 exports to outside the filtering system 10 by the 4th transfer line 16.What give special heed to is; Second solution 22 must be attached at the pressure of filter substrate 141 less than porous film 142 from the pressure of filtering system 10 outputs; Can guarantee that just porous film 142 is attached on the filter substrate 141 securely, therefore first solution 21 just can not enter in the filter substrate 141.Wherein second solution 22 is preferable with water of condensation, and second solution 22 constantly circulating filtration uses or imports in the flow passage structure 1411 of second new solution 22 to the filter substrate 141 from the 3rd transfer line 15.Natch, the flow direction of second solution 22 is not limit, and importantly, the temperature of second solution 22 need be lower than the temperature of first solution 21.
What need pay special attention in addition is, porous film 142 can carry out chemical modification to be handled and makes it become wetting ability or hydrophobicity, and the one side that porous film 142 contacts with first solution 21 is for only can being the hydrophobicity top layer.Because the characteristic on hydrophobicity top layer is solution and can't penetrates only have water vapour to penetrate.The wetting ability top layer then is that solution and water vapour are all penetrable.
Filtering system 10 of the present invention is during actually operating, when filtration casket 14 soaks first solution of being located in the filling tank 11 21; Because of first solution 21 only contacts with the hydrophobicity top layer of the porous film 142 that filters casket 14 surfaces, first solution 21 can't not filter within the casket 14 and can not get into through the hydrophobicity top layer of porous film 142; First solution 21 is only arranged because of having the water vapour that temperature produces, can penetrate the hydrophobicity top layer and arrive filter in the flow passage structure of filter substrate 14 of casket 14 1411, at this moment; Because the temperature of second solution 22 is less than the temperature of first solution 21; Therefore, water vapour runs into second solution 22 can condense into water droplet, therefore; Can mix with second solution 22, exporting filtering system 10 outer perhaps second solution 22 to by the 4th transfer line 16 together can constantly recycle.Wherein the thickness occupation rate on wetting ability top layer is less than 95%; Because the thickness on wetting ability top layer can have influence on the water preventing ability on hydrophobicity top layer; Blocked up and hydrophobicity top layer, wetting ability top layer is crossed when thin; Can can't effectively stop first solution 21, and let first solution 21 directly penetrate film and can't distill, so the thickness of hydrophilic layer must be defined in the scope.
Importantly; The present invention obtains through experiment one; Situation one: if the one side that porous film 142 engages with filter substrate 141 is the hydrophobicity top layer; Need to wait for that the water vapour after 21 evaporations of first solution penetrated another side hydrophobicity top layer once more, could by second solution 22 with behind the water vapor condensation by flow passage structure 1411 and the 4th transfer line 16 with fresh water output and compile.Situation two: if the one side that porous film 142 engages with filter substrate 141 is the wetting ability top layer; Then when the vapor transmission after 21 evaporations of first solution is crossed arrival wetting ability top layer, hydrophobicity top layer; Because second solution 22 can touch the water vapour after 21 evaporations of first solution sooner; Therefore; Under identical first solution, 21 temperature conditionss, the porous film 142 of service condition two is in filtering system 10 of the present invention, and the mixing solutions amount that second solution 22 of every meter square hour institute (L/hr/M2) generation and first solution 21 are condensed into water can be more.About the experimental data of above-mentioned two kinds of situation shown in following table one:
Table one
In addition, can find out also from last table one that first solution, 21 temperature are high more, filter effect is good more, because can make the solution 21 of winning produce water vapour more fast.Therefore, filtering system 10 of the present invention can further have a heating unit 17, can be installed in the filtering system 10 or be connected with filtering system 10 (as shown in Figure 1).In addition, in order to save the energy, heating unit 17 can utilize sun power, used heat or electric heating etc., with the energy that utilizes nature or reclaim, can greatly reduce the consumption of the energy, further more can reduce the cost of cost.
Again, the present invention is through experiment two and experiment three, obtains seawater, trade effluent or people's livelihood waste water and is able to desalinate or obtain fresh water by filtering system proposed by the invention 10.The content of its metals ion of seawater that experiment two be a seawater after desalination is distinguished as follows: sodium ion less than 0.8mg/L, potassium ion less than 1.7mg/L, calcium ion less than 0.6mg/L, mg ion less than 1.4mg/L.The experiment three be after the Industrial Wastewater Treatment related data shown in following table two:
Table two
The porous film 142 strut member (not shown) of can further fitting; Purpose is used for supporting porous film 142; Make the porous film 142 can be because of not too soft and can't act on, and can increase anchorage force and pressurize tolerances; Strut member can be selected macromolecular material for use, for example: resin materials such as vibrin, polyvinyl resin or aromatic polyamide resin.And the form of strut member can be weave cotton cloth, tNonwovens, fine-structure mesh (mesh), net (net), sponge, bubble silk floss or porous insert.
Be noted that in addition the flow passage structure 1411 of the filter substrate 141 in the filtering system 10 further can have the microstructure (not shown) that height rises and falls, for example: salient point or irregular structure.Because the microstructure that height rises and falls in the flow passage structure 1411 can directly touch; With that porous film 142 of filter substrate 141 applyings, therefore, when vapor transmission gets into the hydrophobicity top layer; Can bump out the microstructure that height rises and falls in the flow passage structure 1411; So can let water vapour pass through the distance shrinkage on hydrophobicity top layer, increase surface-area, and then increase the output of fresh water with condensation effect.
The above is merely preferred embodiment of the present invention, is not in order to limit the right of applying for a patent of the present invention; Simultaneously above description should be understood and implemented for those of ordinary skills, so other does not break away from the equivalence of being accomplished under the disclosed spirit and change or modification, all should be included in the scope of claim.
Claims (10)
1. a filtering system includes a filling tank (11), one first transfer line (12), one second transfer line (13), a plurality of filtration casket (14), a plurality of the 3rd transfer line (15) and a plurality of the 4th transfer lines (16), it is characterized in that:
This first transfer line (12) is delivered to one first solution (21) in this filling tank (11), and this first solution exports to outside this filtering system (10) by this second transfer line (12);
These a plurality of filtration caskets (14) are placed in this filling tank (11) and soak and be located in this first solution (21); Each filters casket (14) and includes at least one filter substrate (141) and at least one porous film (142); Each filter substrate (141) includes the surface that a runner structure (1411) is formed at each filter substrate at least; Each porous film (142) is attached at this surface of each filter substrate (141), and covers this flow passage structure (1411);
These a plurality of the 3rd transfer lines (15) are communicated with (1411) with these a plurality of the 4th transfer lines (16) with this at least one flow passage structure of these a plurality of filtration caskets (14); These a plurality of the 3rd transfer lines (15) are delivered to one second solution (22) in this at least one flow passage structure (1411) by this, and this second solution (22) exports to outside this filtering system (10) by these a plurality of the 4th transfer lines (16).
2. filtering system according to claim 1 is characterized in that: this at least one porous film (142) is selected from the group that complex body constituted by the plain macromolecular material of fluorine, porousness macromolecular material and plain macromolecular material of fluorine and porousness macromolecular material.
3. filtering system according to claim 2; It is characterized in that: the plain macromolecular material of this fluorine is polytetrafluoroethylene film (PTFE); The aperture of this polytetrafluoroethylene film is between 0.01 μ m to 15 μ m, and the pore fill-in ratio is between 5%～99%, and thickness is between 1 μ m to 1000 μ m.
4. filtering system according to claim 3 is characterized in that: this polytetrafluoroethylene film can be wetting ability top layer or hydrophobicity top layer with the one side that this at least one filter substrate (141) engages.
5. filtering system according to claim 4 is characterized in that: the thickness occupation rate on this wetting ability top layer is less than 95%.
6. filtering system according to claim 5 is characterized in that: this polytetrafluoroethylene film is the hydrophobicity top layer with the one side that this first solution (21) contacts.
7. filtering system according to claim 1 is characterized in that: this at least one flow passage structure (1411) of this at least one filter substrate (141) further has the microstructure that height rises and falls.
8. filtering system according to claim 1 is characterized in that: this at least one filter substrate (141) is selected from by pasting the group that mode, hot melting way and high frequency mode are constituted with the juncture of this at least one porous film (142).
9. filtering system according to claim 1 is characterized in that: this first solution (21) is to be seawater, trade effluent or people's livelihood waste water, and this second solution (22) is water of condensation.
10. filtering system according to claim 1 is characterized in that: further have a heating unit (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105566173A CN102464363A (en) | 2010-11-19 | 2010-11-19 | Filtering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105566173A CN102464363A (en) | 2010-11-19 | 2010-11-19 | Filtering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102464363A true CN102464363A (en) | 2012-05-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105566173A Pending CN102464363A (en) | 2010-11-19 | 2010-11-19 | Filtering system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0224249A (en) * | 1988-07-12 | 1990-01-26 | Suzuki Motor Co Ltd | Defroster nozzle for automobile |
| JPH0924249A (en) * | 1995-07-14 | 1997-01-28 | Hitachi Ltd | Membrane evaporator and membrane distillation method |
| WO2004101444A1 (en) * | 2003-05-12 | 2004-11-25 | Clean Water Gesellschaft Für Wasseraufbereitungs- Technik Mbh | Method and device for the purification, especially desalination, of water |
| CN1760137A (en) * | 2004-10-15 | 2006-04-19 | 中国科学院生态环境研究中心 | A kind of cleaning method for maufacturing system of recirculated cooling water |
| CN101259971A (en) * | 2007-03-05 | 2008-09-10 | 华东理工大学 | Method for treating membrane distillation water |
| CN101600492A (en) * | 2006-10-31 | 2009-12-09 | 荷兰应用自然科学研究组织 | The membrane distillation method that is used for decontaminating liquid |
-
2010
- 2010-11-19 CN CN2010105566173A patent/CN102464363A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0224249A (en) * | 1988-07-12 | 1990-01-26 | Suzuki Motor Co Ltd | Defroster nozzle for automobile |
| JPH0924249A (en) * | 1995-07-14 | 1997-01-28 | Hitachi Ltd | Membrane evaporator and membrane distillation method |
| WO2004101444A1 (en) * | 2003-05-12 | 2004-11-25 | Clean Water Gesellschaft Für Wasseraufbereitungs- Technik Mbh | Method and device for the purification, especially desalination, of water |
| CN1760137A (en) * | 2004-10-15 | 2006-04-19 | 中国科学院生态环境研究中心 | A kind of cleaning method for maufacturing system of recirculated cooling water |
| CN101600492A (en) * | 2006-10-31 | 2009-12-09 | 荷兰应用自然科学研究组织 | The membrane distillation method that is used for decontaminating liquid |
| CN101259971A (en) * | 2007-03-05 | 2008-09-10 | 华东理工大学 | Method for treating membrane distillation water |
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Application publication date: 20120523 |