CN107298469B - Concentrating photovoltaic photo-thermal coupling seawater desalination system - Google Patents
Concentrating photovoltaic photo-thermal coupling seawater desalination system Download PDFInfo
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- CN107298469B CN107298469B CN201710504818.0A CN201710504818A CN107298469B CN 107298469 B CN107298469 B CN 107298469B CN 201710504818 A CN201710504818 A CN 201710504818A CN 107298469 B CN107298469 B CN 107298469B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/14—Treatment of water, waste water, or sewage by heating by distillation or evaporation using solar energy
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
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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
- 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
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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
- 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
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/133—Renewable energy sources, e.g. sunlight
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- Chemical & Material Sciences (AREA)
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- Organic Chemistry (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Sustainable Energy (AREA)
- Sustainable Development (AREA)
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention relates to a concentrating photovoltaic photo-thermal coupling seawater desalination system, which comprises a concentrator, a heating water pipe, a plurality of water pipe branch pipes and a water pipe main pipe, wherein a plurality of photovoltaic cells are laid on the upper surface of the heating water pipe, the output end of the heating water pipe is communicated with a brine collecting device, the output end of the water pipe main pipe is communicated with a condenser, the output end of the condenser is communicated with a water collector, the output end of the water collector is communicated with an electrolysis device, and the output end of the brine collecting device is sleeved outside the input end of the heating water pipe through a pipeline. The invention has the beneficial effects that: the solar energy is fully utilized to carry out multi-stage desalination on the seawater, the utilization rate of the solar energy is high, the fresh water yield is large, and the purity is high; fresh water is separated from brine, the operation is efficient, and hydrogen is produced by electrolyzing water, so that pollution-free new energy is obtained; the solar energy is utilized, the pollution to the environment is reduced, and the energy consumption is saved; the characteristic of low density of water vapor is utilized to realize the automation of condensation; the seawater is preheated by the residual heat of the brine.
Description
Technical Field
The invention belongs to the field of solar energy utilization, and relates to a concentrating photovoltaic photo-thermal coupling utilization seawater desalination system.
Background
Fresh water is a source of drinking water for humans, and reserves of fresh water account for only 2.53% of the total water worldwide. Desalination of sea water is always sought by human beings. In modern society, the demand for fresh water of human beings is sharply increased with the growth of population and the development of industry. Therefore, the development and utilization of seawater are matters which cannot be delayed, but the existing seawater desalination technology has the defects of complex process, large energy consumption, high cost, serious pollution and difficult wide application.
With the reduction of non-renewable energy sources, the energy problem becomes the bottleneck of various inventions, and solar energy is the primary choice of human as an energy source with abundant resources, cleanness, no pollution and low cost. Solar energy is now commonly utilized in various industries, and the greatest benefit of solar energy begins to be exploited. The photovoltaic power generation system is mature day by day and is effectively combined with solar energy to become a component of energy-saving products in part of daily life.
In the daily life of modern society, a plurality of products using solar energy appear, the concentrating photovoltaic photo-thermal coupling seawater desalination system converts solar energy into heat energy to heat seawater by utilizing the characteristic of high-concentration of a groove type condenser, so that resources are saved, and seawater desalination is realized. Under the condition of resource shortage nowadays, the solar energy is utilized to desalt the seawater, so that the solar energy has great prospect.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: based on the problems, the invention provides a concentrating photovoltaic photo-thermal coupling seawater desalination system.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a spotlight photovoltaic light and heat coupling utilizes sea water desalination, including the spotlight ware, install in the heating water pipe of spotlight ware top, a plurality of water pipes that make progress perpendicularly and communicate the heating water pipe side by side divide the pipe and divide the water pipe house steward that a plurality of water pipes all communicate the upper end, a plurality of photovoltaic cell have been laid to the heating water pipe upper surface, the output intercommunication of heating water pipe has the brine collection device, the output intercommunication of water pipe house steward has the condenser, the output intercommunication of condenser has the water collector, the output intercommunication of water collector has electrolytic device, the outside of the input of heating water pipe and the heating of the input outer wall to the heating water pipe are located through the pipe box to the output of brine collection device.
Furthermore, the condenser is a 180-degree inwards concave semicircular surface with an upward opening, and the heating water pipe is arranged right above the circle center of the condenser through a support frame.
Further, several photovoltaic cells are connected in series, with a current collector and an inverter connected to the photovoltaic cell line.
Further, the water pipe main pipe, the water pipe branch pipe and the heating water pipe are arranged in a ladder shape.
Furthermore, the electrolysis device comprises an electrolysis bath A, a rectifying device and a separation tank which are respectively communicated with the output end of the electrolysis bath A, and the output end of the separation tank is communicated with an electrolysis bath B.
Furthermore, a concentration sensor and a valve A are sequentially arranged on a pipeline between the heating water pipe and the brine collecting device, and a valve B is arranged on the water pipe header pipe.
The invention has the beneficial effects that: (1) The characteristics of combining concentrating photovoltaic and photo-thermal are utilized, solar energy is fully utilized to carry out multistage desalination on seawater, the utilization rate of the solar energy is high, the fresh water yield is high, and the purity is high; (2) Fresh water is separated from brine, the operation is efficient, and hydrogen is produced by electrolyzing water to obtain new pollution-free energy; (3) The solar energy is utilized, so that the pollution to the environment is reduced, and the energy consumption is saved; the characteristic of low density of water vapor is utilized to realize the automation of condensation; (4) The seawater is preheated by the residual heat of the brine, so that the utilization of energy is further realized.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a flow chart of seawater utilization;
wherein: 1. the system comprises a water pipe main pipe, 2 valves B,3 water pipe branch pipes, 4 water pumps, 5 condensers, 6 valves A,7 condensers, 8 heating water pipes, 9 water collectors, 10 brine collecting devices, 11 electrolysis baths A,12 separation tanks, 13 rectification equipment, 14 electrolysis baths B and 15 photovoltaic cells.
Detailed Description
The invention will now be further illustrated by reference to specific examples, which are intended to be illustrative of the invention and are not intended to be a further limitation of the invention.
As shown in fig. 1, 2 a sea water desalination system is utilized in spotlight photovoltaic light and heat coupling, including spotlight ware 7, install in the heating water pipe 8 of spotlight ware 7 top, upwards perpendicularly communicate side by side a plurality of water pipes of heating water pipe 8 and divide a plurality of water pipes to manage 3 upper ends all the water main 1 that communicates, a plurality of photovoltaic cell 15 have been laid to heating water pipe 8 upper surface, the output intercommunication of heating water pipe 8 has brine collection device 10, the output intercommunication of water main 1 has condenser 5, the output intercommunication of condenser 5 has water collector 9, the output intercommunication of water collector 9 has electrolytic device, the outside of the input of heating water pipe 8 and the heating of the input outer wall of heating water pipe 8 are located through the pipe box to brine collection device 10's output.
The condenser 7 is a 180-degree concave semicircular surface with an upward opening, and the heating water pipe 8 is arranged right above the circle center of the condenser 7 through a support frame.
Several photovoltaic cells 15 are connected in series, the photovoltaic cells 15 being wired with current collectors and inverters.
The water pipe main pipe 1, the water pipe branch pipes 3 and the heating water pipe 8 are arranged in a ladder shape.
The electrolysis device comprises an electrolysis bath A11, a rectification device 13 and a separation tank 12 which are respectively communicated with the output end of the electrolysis bath A11, and the output end of the separation tank 12 is communicated with an electrolysis bath B14.
Be equipped with concentration sensor and valve A6 on the pipeline in proper order between heating water pipe 8 and the brine collection device 10, be equipped with valve B2 on the water pipe house steward 1.
The heating water pipe 8 is horizontally arranged, and heat generated by high power generation through the condenser 7 is transferred to water in the heating water pipe 8. The photovoltaic cell 15 generates electricity on sunny days and is used for driving the water pump 4 and the condenser 5 at the input end of the heating water pipe 8. Connect a plurality of water pipe branch pipes 3 directly over heating water pipe 8, gather the water main 1 of upper end in, the condenser 5 and the water collector 9 of water main 1 output are connected in order, collect the water vapor liquefaction. During the process of heating the seawater, the photovoltaic cell 15 supplies power to start the operation of the water pump 4 and the condenser 5. At first, the valve A6 is closed, the water pump 4 sucks seawater to enable the heating water pipe 8 to be filled with seawater, the valve B2 is opened at the moment, the seawater in the heating water pipe 8 is heated through the condenser 7, part of water vapor is upwards diffused through the characteristic of low density of the water vapor, the water vapor flows into the condenser 5 through air flow, the water vapor is liquefied and collected into the water collector 9, the liquefied water is introduced into the electrolytic tank A11 to be electrolyzed for one time to prepare a small amount of hydrogen, then the hydrogen is introduced into the separation tank 12, and the hydrogen is introduced into the electrolytic tank B14 to be electrolyzed for the second time to prepare a large amount of hydrogen. Heating for a period of time, when the concentration sensor identifies the set concentration, opening the valve A6, and flowing the residual brine in the heating water pipe 8 into the brine collecting device 10. The output end pipeline of the brine collecting device 10 is communicated with the outer wall of the seawater inlet pipeline, and the seawater is preheated by using the residual heat of the brine. The rectifying device 13 regulates the shape of the air flow, water flow or electric current during the whole operation of the apparatus.
As shown in fig. 2, the concentrated photovoltaic photo-thermal coupling seawater desalination system of the present invention fully utilizes seawater, and is divided into two parts, wherein one part of brine is deeply processed to prepare crude salt, the other part of brine is distilled and condensed to obtain fresh water, one part of fresh water can be used as domestic water and industrial water, the other part of fresh water is further electrolyzed to obtain a small amount of hydrogen after the first electrolysis, the solution is continuously introduced into a separation tank to carry out secondary decomposition, and a large amount of hydrogen is obtained after the secondary decomposition.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. A concentrating photovoltaic photo-thermal coupling seawater desalination system is characterized in that: the solar water heater comprises a condenser, a heating water pipe arranged above the condenser, a plurality of water pipe branch pipes vertically communicated with the heating water pipe side by side upwards and a water pipe header pipe for communicating the upper ends of the water pipe branch pipes, wherein a plurality of photovoltaic cells are paved on the upper surface of the heating water pipe;
the water pipe main pipe, the water pipe branch pipes and the heating water pipe are arranged into a ladder shape;
the electrolysis device comprises an electrolysis bath A, a rectifying device and a separation tank, wherein the rectifying device and the separation tank are respectively communicated with the output end of the electrolysis bath A, and the output end of the separation tank is communicated with an electrolysis bath B.
2. The concentrated photovoltaic photo-thermal coupling seawater desalination system according to claim 1, which is characterized in that: the condenser is a 180-degree inwards concave semicircular surface with an upward opening, and the heating water pipe is arranged right above the circle center of the condenser through a support frame.
3. The concentrated photovoltaic photo-thermal coupling seawater desalination system according to claim 1, which is characterized in that: the photovoltaic cells are connected in series, and the photovoltaic cell lines are connected with current collectors and inverters.
4. The concentrated photovoltaic photo-thermal coupling seawater desalination system according to claim 1, which is characterized in that: the brine collecting device is characterized in that a concentration sensor and a valve A are sequentially arranged on a pipeline between the heating water pipe and the brine collecting device, and a valve B is arranged on the water pipe header pipe.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710504818.0A CN107298469B (en) | 2017-06-28 | 2017-06-28 | Concentrating photovoltaic photo-thermal coupling seawater desalination system |
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| CN201710504818.0A CN107298469B (en) | 2017-06-28 | 2017-06-28 | Concentrating photovoltaic photo-thermal coupling seawater desalination system |
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| CN107298469A CN107298469A (en) | 2017-10-27 |
| CN107298469B true CN107298469B (en) | 2023-01-17 |
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| ES2966705A1 (en) * | 2022-09-27 | 2024-04-23 | Centeno Manuel Fernandez | WATER DESALATION PLANT AND PROCEDURE FOR OBTAINING DESALINATED WATER THROUGH SOLAR ENERGY (Machine-translation by Google Translate, not legally binding) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202968177U (en) * | 2012-11-16 | 2013-06-05 | 山东天力干燥股份有限公司 | Solar device for high-concentrated photovoltaic type power generation/photo-thermal-driven type sea water desalination |
| CN103436906A (en) * | 2013-08-27 | 2013-12-11 | 北京航空航天大学 | Spectroscopic photovoltaic and photo-thermal joint hydrogen production system and use method thereof |
| CN203728601U (en) * | 2014-02-24 | 2014-07-23 | 华北电力大学（保定） | Solar seawater desalination and power generation device |
| CN105174576A (en) * | 2015-05-18 | 2015-12-23 | 曾庆福 | Novel seawater desalination system |
| CN207418326U (en) * | 2017-06-28 | 2018-05-29 | 常州大学 | A kind of concentrating photovoltaic photo-thermal coupling utilizes seawater desalination system |
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2017
- 2017-06-28 CN CN201710504818.0A patent/CN107298469B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202968177U (en) * | 2012-11-16 | 2013-06-05 | 山东天力干燥股份有限公司 | Solar device for high-concentrated photovoltaic type power generation/photo-thermal-driven type sea water desalination |
| CN103436906A (en) * | 2013-08-27 | 2013-12-11 | 北京航空航天大学 | Spectroscopic photovoltaic and photo-thermal joint hydrogen production system and use method thereof |
| CN203728601U (en) * | 2014-02-24 | 2014-07-23 | 华北电力大学（保定） | Solar seawater desalination and power generation device |
| CN105174576A (en) * | 2015-05-18 | 2015-12-23 | 曾庆福 | Novel seawater desalination system |
| CN207418326U (en) * | 2017-06-28 | 2018-05-29 | 常州大学 | A kind of concentrating photovoltaic photo-thermal coupling utilizes seawater desalination system |
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