CN102764592A - Poly tetra fluoro ethylene (PTFE) cylinder type plate membrane distiller - Google Patents
Poly tetra fluoro ethylene (PTFE) cylinder type plate membrane distiller Download PDFInfo
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- CN102764592A CN102764592A CN2012102817681A CN201210281768A CN102764592A CN 102764592 A CN102764592 A CN 102764592A CN 2012102817681 A CN2012102817681 A CN 2012102817681A CN 201210281768 A CN201210281768 A CN 201210281768A CN 102764592 A CN102764592 A CN 102764592A
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- ptfe
- membrane
- polytetrafluoroethylene
- flat sheet
- cartridge type
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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
Abstract
The invention provides a PTFE cylinder type plate membrane distiller. The plate membrane distiller comprises a chlorinated poly vinyl chloride (CPVC) membrane cylinder and combined filter elements. The combined filter elements are placed in the CPVC membrane cylinder and two ends of central air suction pipes of the combined filter elements penetrate through the CPVC membrane cylinder. Multiple groups of high-porosity PTFE hydrophobic membranes and polyethylene terephthalate (PET) fiber woven flat screens are combined to form circular plate vacuum membrane components. Each of the circular plate vacuum membrane components is connected in series by one of the central air suction pipes to form one of the combined filter element. A liquid inlet is arranged at the lower end of the CPVC membrane cylinder, and a liquid outlet is arranged at the upper end. Processed liquid materials are fed through the liquid inlet, submerge the combined filter element completely when penetrating through the circular plate vacuum membrane components, and are discharged through the liquid outlet to form circulation flow. Vapor of the PED fiber woven flat screens is suctioned out through holes in the central air suction pipes and subsequently condensed to form product water. The PTFE cylinder type plate membrane distiller is simple in manufacturing process and beneficial for mass production.
Description
Technical field
The present invention relates to the water treatment facilities technical field, particularly a kind of polytetrafluoroethylene (PTFE) cartridge type flat sheet membrane distiller.
Background technology
The film distillation is a kind of employing dewatering microporous film, is the film separation process of mass transfer driving force with film both sides steam pressure difference.Under the driving of the steam pressure difference of microporous hydrophobic membrane both sides, water vapour is condensed into liquid separation process again after heated former water one side is passed hydrophobic membrane.Because the hydrophobicity of film; Have only water vapour can see through fenestra; Former water and the non-volatile solute that is dissolved in wherein can't pass fenestra, so the film still-process in theory can removing ion, big molecule, colloid, cell and other non-volatile matter realization 100%.Microporous hydrophobic membrane plays the support shielding action between two phases in the film still-process.In the process of film distillation, two kinds of processes of heat and mass transfer take place simultaneously, temperature difference polarization also can produce with temperature difference polarization phenomena simultaneously, thereby the process of film distillation is produced adverse influence.The operating temperature of film still-process is lower than traditional still-process, and operating pressure is lower than traditional film separation process; Mechanical performance to film requires lower; Compare with traditional still-process, the vapor space significantly reduces.The assembly of film distillation can be designed to latent heat and reclaim form, and has with the flexibility of small-sized membrane module formation large-scale production system efficiently.This process can the high fortified aqueous of concentration of treatment; If solute is the material of easy and crystalline; Can realize film distillation crystallization to solution concentration to hypersaturated state, be present unique can be from solution direct separation go out the membrane process of crystallized product, and as long as the suitable temperature difference is kept in the film both sides; This process just can be carried out, and can utilize solar energy, underground heat, hot spring, waste heat of plant and the warm cheap energy such as industrial wastewater.It is low that film distillation technology has an operating pressure, and salt rejection rate that can obtain 99. 99 % and the water flux that under the excellent operation condition, is higher than counter-infiltration are arranged, and shown its substituting (extensive pure water preparation) or replenishing technology as reverse osmosis technology.
Present film distiller mainly contains board-like flat sheet membrane distiller, cartridge type film silk group distiller, submerged film silk group distiller.And board-like flat sheet membrane distiller needs shaper; The big Heavy Weight of volume; Structure is difficult to satisfy the industrialization utilization for folded formula inconvenience repair and replacement, and cartridge type film silk group distiller requires very high to used hydrophobic membrane silk flux; Can only accomplish now that the too little and film silk of 50% aperture rate flux is made is difficult for volume production, and there is such problem too in submerged film silk group distiller.
Summary of the invention
The present invention proposes a kind of polytetrafluoroethylene (PTFE) cartridge type flat sheet membrane distiller, and manufacture craft is simple, helps large-scale production.The technical scheme that the present invention adopted specifically is achieved in that
The invention provides a kind of polytetrafluoroethylene (PTFE) cartridge type flat sheet membrane distiller; It comprises: CPVC film tube (1) and Combination filter element (6); Said Combination filter element (6) is positioned at central suction pipe (8) two ends of said CPVC film tube (1) and said Combination filter element (6) and passes said CPVC film tube (1); The PTFE hydrophobic membrane (3) of the high aperture of many groups rate and PET fibrage plain net (4) the circular planar vacuum membrane module that is composited; Each said circular planar vacuum membrane module is connected into said Combination filter element (6) by a said central suction pipe (8), and said CPVC film tube (1) lower end is provided with inlet (2), and the upper end is provided with liquid outlet (7); The liquid material that is processed gets into from said inlet (2); Flood said Combination filter element (6) fully through (5) between circular planar vacuum membrane module, the liquid material that is processed is discharged from said liquid outlet (7), and formation circulates; Aperture (9) on the said central suction pipe (8) is the steam sucking-off of said PET fibrage plain net (4), and subsequent condensation becomes product water.
Preferably; Said circular planar vacuum membrane module is to adopt said PET fibrage plain net (4) as support substrate; Go up application of adhesive at said PET fibrage plain net (4), said PTFE hydrophobic membrane (3) is compounded on the said PET fibrage plain net (4) dries.
Preferably, the temperature of said oven dry is 90-130 ℃, and the time is 15s.
Preferably, said adhesive comprises that mass fraction is that 75% terpolymer first and mass fraction are 25% terpolymer second.
Preferably, the said terpolymer first thermoplasticity terpolymer that is difluoroethylene, tetrafluoroethene and hexafluoropropene.
Preferably, said terpolymer second is the cruel terpolymer of methyl propenoic acid glycidyl vinegar, ethene and acrylic acid.
Preferably, said PET fibrage plain net (4) mesh wire diameter is 0.5mm.
Preferably, the aperture of said PTFE hydrophobic membrane is O. 2 μ m, and porosity is 90%, and thickness is O. 2 mm.
Polytetrafluoroethylene (PTFE) cartridge type flat sheet membrane distiller of the present invention; Developed the big and little advantage of cartridge type film silk group distiller volume of board-like flat sheet membrane distiller flux; Improved the flaw of submerged film silk group film distillation mode part simultaneously, realized that the volume primary flux is big, manufacture craft is simple; Help large-scale production, for new opening a little started in the industrialization utilization.
Description of drawings
Fig. 1 is the structural representation of the polytetrafluoroethylene (PTFE) cartridge type flat sheet membrane distiller of the embodiment of the invention;
Fig. 2 is the side view of the polytetrafluoroethylene (PTFE) cartridge type flat sheet membrane distiller of the embodiment of the invention.
The specific embodiment
For make above-mentioned purpose of the present invention, feature and advantage can be more obviously understandable, does detailed explanation below in conjunction with the accompanying drawing specific embodiments of the invention, it will be more clear making above-mentioned and other purpose, characteristic and advantage of the present invention.Reference numeral identical in whole accompanying drawings is indicated identical part.Painstakingly do not draw accompanying drawing in proportion, focus on illustrating purport of the present invention.
Below in conjunction with accompanying drawing polytetrafluoroethylene (PTFE) cartridge type flat sheet membrane distiller specific embodiment of the present invention is elaborated.
Fig. 1 is the overall structure sketch map of the polytetrafluoroethylene (PTFE) cartridge type flat sheet membrane distiller of the embodiment of the invention, and Fig. 2 is the side view of the polytetrafluoroethylene (PTFE) cartridge type flat sheet membrane distiller of the embodiment of the invention, and is as depicted in figs. 1 and 2; The polytetrafluoroethylene (PTFE) cartridge type flat sheet membrane distiller of the embodiment of the invention; It comprises: CPVC (Chlorinated poly vinyl chloride, chliorinated polyvinyl chloride) film tube 1 and Combination filter element 6, and wherein Combination filter element 6 can have many groups as required; CPVC film tube 1 also can be made all size as required; Combination filter element 6 is positioned at central suction pipe 8 two ends of CPVC film tube 1 and Combination filter element 6 and passes CPVC film tube 1, organizes PTFE (Poly tetra fluoro ethylene ptfe, the polytetrafluoroethylene (PTFE)) hydrophobic membrane 3 and PET (polyethylene terephthalate of high aperture rate more; PETG) the fibrage plain net 4 circular planar vacuum membrane module that is composited; Each circular planar vacuum membrane module is connected into Combination filter element 6 by a central suction pipe 8, and CPVC film tube 1 lower end is provided with inlet 2, and the upper end is provided with liquid outlet 7; The liquid material that is processed gets into from inlet 2; Through 5 flooding Combination filter element 6 fully between circular planar vacuum membrane module, the liquid material that is processed is discharged from liquid outlet 7, and formation circulates; Aperture 9 on the central suction pipe 8 is the steam sucking-off of PET fibrage plain net 4, and subsequent condensation becomes product water.
Among the present invention, circular planar vacuum membrane module is to adopt PET fibrage plain net 4 as support substrate, application of adhesive on PET fibrage plain net 4; PTFE hydrophobic membrane 3 is compounded on the PET fibrage plain net 4 dries; The temperature of oven dry is 90-130 ℃, and the time is 15s, simultaneously; Adhesive comprises that mass fraction is that 75% terpolymer first and mass fraction are 25% terpolymer second; The terpolymer first is the thermoplasticity terpolymer of difluoroethylene, tetrafluoroethene and hexafluoropropene, and terpolymer second is the cruel terpolymer of methyl propenoic acid glycidyl vinegar, ethene and acrylic acid, and this adhesive is a kind of of the embodiment of the invention; But be not limited to this a kind of adhesive, the present invention also can use other adhesives.
The polytetrafluoroethylene (PTFE) cartridge type flat sheet membrane distiller of the embodiment of the invention, PET fibrage plain net (4) mesh wire diameter is 0.5mm, and the aperture of PTFE hydrophobic membrane is O. 2 μ m, and porosity is 90%, and thickness is O. 2 mm.
Polytetrafluoroethylene (PTFE) cartridge type flat sheet membrane distiller of the present invention; Developed the big and little advantage of cartridge type film silk group distiller volume of board-like flat sheet membrane distiller flux; Improved the flaw of submerged film silk group film distillation mode part simultaneously, realized that the volume primary flux is big, manufacture craft is simple; Help large-scale production, for new opening a little started in the industrialization utilization.
In above description, a lot of details have been set forth so that make much of the present invention.But above description only is preferred embodiment of the present invention, and the present invention can implement much to be different from alternate manner described here, so the present invention does not receive the restriction of top disclosed practical implementation.Any skilled personnel are not breaking away under the technical scheme scope situation of the present invention simultaneously; All the method for above-mentioned announcement capable of using and technology contents are made many possible changes and modification to technical scheme of the present invention, or are revised as the equivalent embodiment of equivalent variations.Every content that does not break away from technical scheme of the present invention, all still belongs in the scope of technical scheme protection of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (8)
1. polytetrafluoroethylene (PTFE) cartridge type flat sheet membrane distiller; It is characterized in that; It comprises: CPVC film tube (1) and Combination filter element (6); Said Combination filter element (6) is positioned at central suction pipe (8) two ends of said CPVC film tube (1) and said Combination filter element (6) and passes said CPVC film tube (1), the PTFE hydrophobic membrane (3) of organizing high aperture rate and PET fibrage plain net (4) the circular planar vacuum membrane module that is composited more, and each said circular planar vacuum membrane module is connected into said Combination filter element (6) by a said central suction pipe (8); Said CPVC film tube (1) lower end is provided with inlet (2); The upper end is provided with liquid outlet (7), and the liquid material that is processed gets into from said inlet (2), floods said Combination filter element (6) fully through (5) between circular planar vacuum membrane module; The liquid material that is processed is discharged from said liquid outlet (7); Formation circulates, and the aperture (9) on the said central suction pipe (8) is the steam sucking-off of said PET fibrage plain net (4), and subsequent condensation becomes product water.
2. polytetrafluoroethylene (PTFE) cartridge type flat sheet membrane distiller according to claim 1; It is characterized in that; Said circular planar vacuum membrane module is to adopt said PET fibrage plain net (4) as support substrate; Go up application of adhesive at said PET fibrage plain net (4), said PTFE hydrophobic membrane (3) is compounded on the said PET fibrage plain net (4) dries.
3. polytetrafluoroethylene (PTFE) cartridge type flat sheet membrane distiller according to claim 2 is characterized in that the temperature of said oven dry is 90-130 ℃, and the time is 15s.
4. polytetrafluoroethylene (PTFE) cartridge type flat sheet membrane distiller according to claim 2 is characterized in that, said adhesive comprises that mass fraction is that 75% terpolymer first and mass fraction are 25% terpolymer second.
5. polytetrafluoroethylene (PTFE) cartridge type flat sheet membrane distiller according to claim 4 is characterized in that the thermoplasticity terpolymer that said terpolymer first is difluoroethylene, tetrafluoroethene and hexafluoropropene.
6. polytetrafluoroethylene (PTFE) cartridge type flat sheet membrane distiller according to claim 4 is characterized in that said terpolymer second is the cruel terpolymer of methyl propenoic acid glycidyl vinegar, ethene and acrylic acid.
7. polytetrafluoroethylene (PTFE) cartridge type flat sheet membrane distiller according to claim 1 is characterized in that said PET fibrage plain net (4) mesh wire diameter is 0.5mm.
8. the polytetrafluoroethylene (PTFE) cartridge type flat sheet membrane distiller of stating according to claim 1 is characterized in that the aperture of said PTFE hydrophobic membrane is O. 2 μ m, and porosity is 90%, and thickness is O. 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210281768.1A CN102764592B (en) | 2012-08-09 | 2012-08-09 | Polytetrafluoroethylene (PTFE) cartridge type Flat Membrane distiller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210281768.1A CN102764592B (en) | 2012-08-09 | 2012-08-09 | Polytetrafluoroethylene (PTFE) cartridge type Flat Membrane distiller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102764592A true CN102764592A (en) | 2012-11-07 |
| CN102764592B CN102764592B (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210281768.1A Expired - Fee Related CN102764592B (en) | 2012-08-09 | 2012-08-09 | Polytetrafluoroethylene (PTFE) cartridge type Flat Membrane distiller |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004051671A1 (en) * | 2004-10-22 | 2006-04-27 | Microdyn-Nadir Gmbh | Device for filtering substances from liquids |
| CN201578994U (en) * | 2010-01-22 | 2010-09-15 | 苏州膜华材料科技有限公司 | Immersed flat panel membrane separator |
| CN102125806A (en) * | 2010-01-20 | 2011-07-20 | 中国科学院生态环境研究中心 | Method for applying spiral membrane assembly to vacuum membrane distillation |
| CN102284251A (en) * | 2011-08-01 | 2011-12-21 | 浙江东大环境工程有限公司 | Method for manufacturing polytetrafluoroethylene hollow fibrous membrane |
| CN202803119U (en) * | 2012-08-09 | 2013-03-20 | 正仁环保科技股份有限公司 | Polytetrafluoroethylene (PTFE) cylinder type plate membrane distiller |
-
2012
- 2012-08-09 CN CN201210281768.1A patent/CN102764592B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004051671A1 (en) * | 2004-10-22 | 2006-04-27 | Microdyn-Nadir Gmbh | Device for filtering substances from liquids |
| CN102125806A (en) * | 2010-01-20 | 2011-07-20 | 中国科学院生态环境研究中心 | Method for applying spiral membrane assembly to vacuum membrane distillation |
| CN201578994U (en) * | 2010-01-22 | 2010-09-15 | 苏州膜华材料科技有限公司 | Immersed flat panel membrane separator |
| CN102284251A (en) * | 2011-08-01 | 2011-12-21 | 浙江东大环境工程有限公司 | Method for manufacturing polytetrafluoroethylene hollow fibrous membrane |
| CN202803119U (en) * | 2012-08-09 | 2013-03-20 | 正仁环保科技股份有限公司 | Polytetrafluoroethylene (PTFE) cylinder type plate membrane distiller |
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| CN102764592B (en) | 2015-08-05 |
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