CN101767841A - Vacuum membrane distillation water-treatment plant utilizing solar energy - Google Patents
Vacuum membrane distillation water-treatment plant utilizing solar energy Download PDFInfo
- Publication number
- CN101767841A CN101767841A CN200910217112A CN200910217112A CN101767841A CN 101767841 A CN101767841 A CN 101767841A CN 200910217112 A CN200910217112 A CN 200910217112A CN 200910217112 A CN200910217112 A CN 200910217112A CN 101767841 A CN101767841 A CN 101767841A
- Authority
- CN
- China
- Prior art keywords
- water
- vacuum
- membrane
- cooling cylinder
- distillation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/138—Water desalination using renewable energy
- Y02A20/142—Solar thermal; Photovoltaics
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
- Y02A20/211—Solar-powered water purification
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
- Y02A20/208—Off-grid powered water treatment
- Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
-
- 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
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention provides a vacuum membrane distillation water-treatment plant utilizing solar energy or waste heat, which belongs to the field of water treatment. The vacuum membrane distillation water-treatment plant comprises a membrane module, a distillation box, a cooling cylinder, a vacuum pump, a control system and a circulating system. The invention uses a vacuum membrane distillation method which has the separation principle that hot raw water to be treated passes through one side of the separation membrane, and the other side is vacuumized so as to form transfer vapor pressure difference on the two sides of the membrane; and the vacuum side only generates water vapor, and the water vapor is condensed into drinking water, thereby separating and purifying the raw water. The invention utilizes cheap energy sources, such as solar energy, low-grade waste heat and afterheat, or the like, and can recycle latent heat of condensation, thereby reducing the energy consumption. The vacuum membrane distillation water-treatment plant has the advantages of simple structure, small occupied area, low cost, high desalination rate, large membrane flux and the like, and can be operated continuously and realize automatic control.
Description
Technical field
The invention belongs to the water treatment field of energy-conserving and environment-protective, particularly a kind of vacuum membrane distillation water-treatment plant that utilizes sun power.
Background technology
In areas such as some arids of China or islands, Freshwater resources are very poor, have the problem of power shortage simultaneously, and it is very difficult to cause tap water and domestic water to supply with.But these geographic solar energy resourceses are very abundant.And,, the drinking water source has been caused very big pollution because to the paying little attention to of environmental protection, the trade effluent blowdown flow rate increases in some industrial developments area rapidly.In addition, in some factories, as iron and steel, chemical enterprise etc., low-grade used heat, waste heat etc. fail to be fully used, and cause very big energy dissipation.
At present, industrialized method for desalting brackish water mainly contains: methods such as multistage flash evaporation, reverse osmosis, multi-effect distilling.Be generally big-and-middle-sized equipment, have problems such as cost of investment height, operation operation complexity, this has restricted the fast development of brackish water desalination industry greatly.
Summary of the invention
The objective of the invention is to utilize the vacuum membrane distillation water treatment of sun power or used heat, a kind of compact construction, water purifying plant simple to operate are provided.
Vacuum membrane distillation water-treatment plant of the present invention comprises the distillation case, membrane module, cooling cylinder, flange, communicating pipe, water circulating pump, vacuum pump, water level sensor, magnetic valve, PLC controller and connect the pipeline of each parts, this device upper end is the distillation case, is provided with the membrane module of vertical arrangement in the distillation case, and the lower end of membrane module is connected with former water distribution pipe by the membrane module pipe connecting, the upper end of membrane module connects former water manifold trunk by flange, the bottom of distillation case was connected with cooling cylinder through communicating pipe, was provided with prolong in the cooling cylinder, and the pipe connecting outlet of vacuum pump is connected to the top of cooling cylinder, the bottom of cooling cylinder is provided with the water purification pipe connecting, and the other end of water purification pipe connecting links to each other with clarified water pump through magnetic valve.Former water water inlet pipe, water circulating pump, former water distribution pipe, membrane module pipe connecting, membrane module, flange, former water manifold trunk, former water rising pipe constitute former water-flow circuit, the water inlet of prolong links to each other with former water rising pipe, be provided with the prolong dividing plate in the water outlet connection solar heat collector water tank cooling cylinder of prolong, the bottom of dividing plate is provided with the water hole.The bottom of cooling cylinder is provided with the water level sensor that connects the PLC controller.
The present invention adopts the vacuum membrane distillation method, and its separation principle is that pending pyrogen water passes through separatory membrane one side, and opposite side vacuumizes, thereby form the transmission steam pressure difference in the film both sides, produce single water vapor at inlet side, become tap water, to realize the isolation of purified of former water through condensation.The used film of membrane distillation is a hydrophobic microporous membrane, when the former water after the heating flows into membrane module, one side of film directly contacts with pyrogen water, opposite side is the distillation case, under the differential pressure action that vacuum pump forms, the water vapor of vaporizing in the former water passes fenestra and enters the distillation case, after storage is collected in the cooling cylinder condensation, is delivered to and respectively uses water spot again.Former water enters solar energy collector after coming out from membrane module under the effect of recycle pump, by the heating of solar energy collector, make the former water that enters membrane module maintain certain temperature levels all the time, thereby the membrane distillation process is carried out continuously.
The present invention utilizes the sun power or the cheap energy such as low-grade used heat, waste heat, and can reclaim condensation latent heat, reduces energy consumption.Vacuum membrane distillation is compared with other membrane distillation form, has the isolating technological merit of pervaporation and membrane distillation, need not solution is heated to boiling point, as long as suitable transmission steam pressure difference is kept in the film both sides, this process just can be carried out.Advantages such as that this device has is simple in structure, floor space is little, cost is low, energy-conserving and environment-protective, desalination rate height, and membrane flux is big, but operate continuously and realize automatization control.
Water treatment device of the present invention can be used in areas such as desert, island, handles seawater or brackish water and obtains required tap water and domestic water; Also can be used on low-grade exhaust heat, the more industrial enterprise of waste heat, be used for handling brine waste, reach the comprehensive utilization of waste water used heat; Also can be used to handle tap water, for office, enterprise, school, residential quarter provide purified drinking water.
Description of drawings
Accompanying drawing is the structural representation of apparatus of the present invention.
Wherein: 1 is former water water inlet pipe, and 2 is water circulating pump, and 3 is former water distribution pipe, and 4 is former water rising pipe, 5 is former water manifold trunk, and 6 is flange, and 7 are the distillation case, and 8 is membrane module, 9 is the membrane module pipe connecting, and 10 is communicating pipe, and 11 is cooling cylinder, and 12 is prolong, 13 is dividing plate, and 14 is water level sensor, and 15 is the water purification pipe connecting, 16 is vacuum pump, and 17 is magnetic valve, and 18 is the water purification water pump, 19 is the water purification rising pipe, and 20 is the vacuum pump pipe connecting, and 21 is the PLC controller.
Embodiment
Below in conjunction with the present embodiment synoptic diagram, describe its constructional feature and working process in detail.
The constructional feature of present embodiment is: former water water inlet pipe 1, water circulating pump 2, former water distribution pipe 3, membrane module pipe connecting 9, membrane module 8, flange 6, former water manifold trunk 5, former water rising pipe 4 constitute former water-flow circuit, former water water inlet pipe 1, former water rising pipe 4 connect the intake-outlet of solar energy collector respectively, former water distribution pipe 3, membrane module pipe connecting 9, membrane module 8, flange 6, former water manifold trunk 5 all are installed in the distillation case 7, the distillation tank shell is a bilayer structure, the centre is a lagging material, setting-in hydrophobic membrane in the membrane module 8.Communicating pipe 10 is communicated with distillation case 7 and cooling cylinder 11, and prolong 12 and dividing plate 13 are arranged in the cooling cylinder 11, and the bottom of dividing plate 13 has the water hole, and fresh water can flow freely.Vacuum pump pipe connecting 20 1 ends are connected to the top of cooling cylinder 11, and the other end connects vacuum pump 16.Water purification pipe connecting 15 1 ends are connected to the bottom of cooling cylinder 11, and the other end links to each other with water purification water pump 18 through magnetic valve 17.The operation of the signal control equipment that PLC controller 21 sends by water level sensor 14.
The working process of present embodiment is: former water is heated to certain temperature in solar energy collector, enter membrane module 8 through former water water inlet pipe 1, water circulating pump 2, former water distribution pipe 3, membrane module pipe connecting 9, portion of water in the former water enters distillation case 7 with steam condition by fenestra, and undistilled former water is got back to solar energy collector through flange 6, former water manifold trunk 5, former water rising pipe 4.Water vapor enters cooling cylinder 11 through communicating pipe 10 under the driving of vacuum pump 16, carry out heat exchange by prolong 12, and is condensed into purified liquid water, and the effect of dividing plate 13 is the flow directions that change air-flow, makes the abundant condensation of water vapor.After water level reach a certain height, water level sensor 14 sends signal to PLC controller 21, magnetic valve 17 is opened, water purification water pump 18 is started working, make the pure water in the cooling cylinder 11 carry fresh water to store for use to hold-up vessel by water purification pipe connecting 15 and water purification rising pipe 19, after the pure water water level in the cooling cylinder 11 was reduced to a certain degree, water level sensor 14 sent signal to PLC controller 21 once more, water purification water pump 18 quits work, and magnetic valve 17 cuts out.The former water that temperature is lower carries out heat exchange at prolong 12, enters the former water of solar energy collector supplement consumed, has reclaimed a large amount of condensation latent heat simultaneously, has reduced the scale of solar energy collector.
Claims (4)
1. vacuum membrane distillation water-treatment plant that utilizes sun power or used heat, comprise the distillation case, membrane module, cooling cylinder, flange, communicating pipe, water circulating pump, vacuum pump, water level sensor, magnetic valve, PLC controller and connect the pipeline of each parts is characterized in that this device upper end is the distillation case, be provided with the membrane module of vertical arrangement in the distillation case, the lower end of membrane module is connected with former water distribution pipe by the membrane module pipe connecting, and the upper end of membrane module connects former water manifold trunk by flange, and the bottom of distillation case was connected with cooling cylinder through communicating pipe, be provided with prolong in the cooling cylinder, the pipe connecting outlet of vacuum pump is connected to the top of cooling cylinder, and the bottom of cooling cylinder is provided with the water purification pipe connecting, and the other end of water purification pipe connecting links to each other with clarified water pump through magnetic valve.
2. a kind of vacuum membrane distillation water-treatment plant that utilizes sun power or used heat according to claim 1, it is characterized in that former water water inlet pipe, water circulating pump, former water distribution pipe, membrane module pipe connecting, membrane module, flange, former water manifold trunk, former water rising pipe constitute former water-flow circuit, the water inlet of prolong links to each other with former water rising pipe, and the water outlet of prolong connects the solar heat collector water tank
3. a kind of vacuum membrane distillation water-treatment plant that utilizes sun power or used heat according to claim 1 is characterized in that being provided with in the cooling cylinder prolong dividing plate, and the bottom of dividing plate is provided with the water hole.
4. a kind of vacuum membrane distillation water-treatment plant that utilizes sun power or used heat according to claim 1 is characterized in that the bottom of cooling cylinder is provided with the water level sensor that connects the PLC controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910217112A CN101767841A (en) | 2009-12-30 | 2009-12-30 | Vacuum membrane distillation water-treatment plant utilizing solar energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910217112A CN101767841A (en) | 2009-12-30 | 2009-12-30 | Vacuum membrane distillation water-treatment plant utilizing solar energy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101767841A true CN101767841A (en) | 2010-07-07 |
Family
ID=42500969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910217112A Pending CN101767841A (en) | 2009-12-30 | 2009-12-30 | Vacuum membrane distillation water-treatment plant utilizing solar energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101767841A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102190328A (en) * | 2010-12-23 | 2011-09-21 | 广西民族大学 | Method of using homogeneous solution to prepare zinc oxide |
| CN105858763A (en) * | 2016-04-08 | 2016-08-17 | 哈尔滨工业大学 | Purifying and heating integrated device |
| CN106115820A (en) * | 2016-06-24 | 2016-11-16 | 万子潜 | A kind of water treatment facilities and process technique thereof |
| CN107117759A (en) * | 2017-06-21 | 2017-09-01 | 海南大学 | Portable rescue at sea method for desalting seawater and device |
| WO2017202432A1 (en) * | 2016-05-23 | 2017-11-30 | Hsl Energy Holding Aps | An apparatus for production of steam from an aqueous liquid |
| CN107473481A (en) * | 2017-08-31 | 2017-12-15 | 河海大学 | The garbage percolation liquid treating system and method for ultrasonic stripping film distillation technology combination |
| CN107935119A (en) * | 2017-12-22 | 2018-04-20 | 北京中新国能环保科技有限公司 | Device, the system and method for photo-thermal method decompression multiple-effect membrane distillation processing desulfurization wastewater |
| CN108483539A (en) * | 2018-03-26 | 2018-09-04 | 宁夏大学 | The solar energy water processing unit of intelligent water level control |
-
2009
- 2009-12-30 CN CN200910217112A patent/CN101767841A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102190328A (en) * | 2010-12-23 | 2011-09-21 | 广西民族大学 | Method of using homogeneous solution to prepare zinc oxide |
| CN102190328B (en) * | 2010-12-23 | 2012-10-24 | 广西民族大学 | Method of using homogeneous solution to prepare zinc oxide |
| CN105858763A (en) * | 2016-04-08 | 2016-08-17 | 哈尔滨工业大学 | Purifying and heating integrated device |
| WO2017202432A1 (en) * | 2016-05-23 | 2017-11-30 | Hsl Energy Holding Aps | An apparatus for production of steam from an aqueous liquid |
| US10788202B2 (en) | 2016-05-23 | 2020-09-29 | Hsl Energy Holding Aps | Apparatus for production of steam from an aqueous liquid |
| CN106115820A (en) * | 2016-06-24 | 2016-11-16 | 万子潜 | A kind of water treatment facilities and process technique thereof |
| CN107117759A (en) * | 2017-06-21 | 2017-09-01 | 海南大学 | Portable rescue at sea method for desalting seawater and device |
| CN107473481A (en) * | 2017-08-31 | 2017-12-15 | 河海大学 | The garbage percolation liquid treating system and method for ultrasonic stripping film distillation technology combination |
| CN107935119A (en) * | 2017-12-22 | 2018-04-20 | 北京中新国能环保科技有限公司 | Device, the system and method for photo-thermal method decompression multiple-effect membrane distillation processing desulfurization wastewater |
| CN107935119B (en) * | 2017-12-22 | 2023-09-12 | 北京中新国能环保科技有限公司 | Device, system and method for treating desulfurization wastewater by photo-thermal decompression multi-effect membrane distillation |
| CN108483539A (en) * | 2018-03-26 | 2018-09-04 | 宁夏大学 | The solar energy water processing unit of intelligent water level control |
| CN108483539B (en) * | 2018-03-26 | 2023-09-22 | 宁夏大学 | Solar water treatment device with intelligent water level control function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Soliman et al. | Energy consumption and environmental impact assessment of desalination plants and brine disposal strategies | |
| CN101767841A (en) | Vacuum membrane distillation water-treatment plant utilizing solar energy | |
| CN105254106B (en) | A kind of high-salinity wastewater zero-emission and the processing method and processing device of salt separation | |
| Mezher et al. | Techno-economic assessment and environmental impacts of desalination technologies | |
| US20150175443A1 (en) | Leverage of waste product to provide clean water | |
| CN101659451B (en) | Method for treating high-salt water by air stripping type membrane distillation | |
| CN205088051U (en) | Processing apparatus of zero release of high salt waste water and salt separation | |
| CN102630216B (en) | Thermal distillation system and technique | |
| CN102139982B (en) | Water purification and regeneration device based on rotary spray evaporation and application of device | |
| CN201587871U (en) | Multi-stage vacuum distillation sea water desalinating device | |
| Zewdie et al. | Solar-assisted membrane technology for water purification: a review | |
| CN102329035B (en) | Fresh water collecting and supplying system | |
| CN1760136A (en) | A clean production method for industrial water system including circulating cooling water and boiler water supply | |
| CN204752255U (en) | Solar energy sea water desalination device | |
| CN201834781U (en) | Single-stage vacuum distillation seawater desalination device | |
| CN201660457U (en) | Novel multiple-effect distilled sea water desalination device | |
| CN103274546A (en) | Printing and dyeing wastewater pure-turbid separating and waste heat utilizing system | |
| US10414670B2 (en) | Systems and methods for distillation of water from seawater, brackish water, waste waters, and effluent waters | |
| CN201605177U (en) | Vacuum membrane distilled water treatment device utilizing solar energy | |
| CN111111451B (en) | Reduced pressure multi-effect membrane distillation method and device thereof | |
| CN207608448U (en) | Utilize the seawater desalination system of power station thermal energy production and living water | |
| CN201626849U (en) | Horizontal tube falling film evaporation device utilizing solar energy or waste heat | |
| CN206624679U (en) | Reverse osmosis unit | |
| CN101565250A (en) | Seawater desalination and chemical resource comprehensive extraction device and extraction method thereof | |
| Chen et al. | Desalination of seawater by thermal distillation and electrodialysis technologies |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100707 |