CN213679908U - Photovoltaic and photothermal integrated seawater desalination system - Google Patents
Photovoltaic and photothermal integrated seawater desalination system Download PDFInfo
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- CN213679908U CN213679908U CN202022135095.1U CN202022135095U CN213679908U CN 213679908 U CN213679908 U CN 213679908U CN 202022135095 U CN202022135095 U CN 202022135095U CN 213679908 U CN213679908 U CN 213679908U
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- photovoltaic
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- seawater desalination
- desalination system
- heat
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
The utility model discloses a photovoltaic and photothermal integrated seawater desalination system, which comprises a photovoltaic waste heat recovery system, a solar heat collector, a seawater desalination system, a water pump, a water tank, a water tower and an inversion system; the utility model discloses a will be according to solar radiation intensity and temperature automatic control pipeline discharge to photovoltaic power generation has higher efficiency when guaranteeing that the hot user obtains the hot water and the fresh water of sufficient temperature. The system can simultaneously obtain domestic water, hot water and electric energy, can realize the purpose of efficiently and multistage utilization of solar energy, simultaneously does not need to input other energy except the solar energy in the whole process, and meets the requirements of energy conservation and emission reduction. The solar energy water heater is particularly suitable for being installed and used in rural areas without central heating or remote areas and areas such as islands with power and fresh water resource shortage.
Description
Technical Field
The utility model belongs to the solar energy comprehensive utilization field, particularly relate to a photovoltaic light and heat integration sea water desalination.
Background
With the continuous exhaustion of fossil fuels in the world and the serious damage problem of the environment caused by the unregulated emission of greenhouse gases, the development and utilization of pollution-free clean energy has attracted extensive attention. Common and important clean energy sources such as water energy, wind energy, solar energy, biomass energy, hydrogen energy and the like. Among them, solar energy is commonly used in various fields such as power generation, hot water supply, and various power devices, and its application is environmentally friendly and is currently widely regarded.
The solar energy resource of China is abundant, the development of high-efficiency solar energy utilization technology can effectively solve the problems of energy shortage and energy structure of China, and simultaneously, the problems of electricity utilization, heating and the like of remote areas can be effectively solved.
In order to solve the problem that the photoelectric conversion efficiency of a solar cell linearly decreases along with the temperature rise of a cell panel and simultaneously influences the service life of a photovoltaic system, related scholars propose a solar photovoltaic electric heating system, but in the current practical application effect, the service temperature of a heat user cannot be met when the hot water temperature obtained by the solar photovoltaic electric heating system is long. The solar seawater desalination can effectively solve the problems of fresh water shortage and environmental pollution.
SUMMERY OF THE UTILITY MODEL
Therefore, in order to solve the above insufficiency, the utility model provides a photovoltaic light and heat integration sea water desalination to solve the problem that efficiency reduces, photovoltaic waste heat is extravagant and solar photovoltaic/thermal system efficiency is not high under the solar cell panel high temperature, and fresh water resource shortage problem.
The utility model is realized in such a way, a photovoltaic and photothermal integrated seawater desalination system is constructed, which is characterized in that; the system comprises a photovoltaic waste heat recovery system, a solar heat collector, a seawater desalination system, a water pump, a water tank, a water tower and an inversion system;
the water tank comprises a heat-preservation water tank and a fresh water tank;
the photovoltaic waste heat recovery system is communicated with the solar heat collector, the output end of the solar heat collector is communicated with the heat-preservation water tank, the output end of the heat-preservation water tank is connected with the seawater desalination system, and the water tower is also communicated with the seawater desalination system;
the seawater desalination system is provided with a glass plate, an overflow plate, a heat absorption plate B, a hot water flow channel and a water containing groove; the glass plate corresponds to the upper part of the heat absorbing plate B, a hot water flow channel is arranged below the heat absorbing plate B, an overflow plate is arranged on the side surface of the heat absorbing plate B, the output end of the heat preservation water tank is connected with the hot water flow channel, and the output end of the hot water flow channel is connected with the photovoltaic waste heat recovery system and the solar heat collector in a return mode; the glass plate is correspondingly provided with a water containing groove which is communicated with a fresh water tank.
The photovoltaic and photothermal integrated seawater desalination system is characterized in that; the water inlet end of the water tower IS communicated with the IS type centrifugal pump.
The photovoltaic and photothermal integrated seawater desalination system is characterized in that; the solar thermal collector is provided with a heat absorbing plate A, a photovoltaic cell and a cooling channel, wherein the heat absorbing plate A is attached to the back face of the photovoltaic cell, the cooling channel is attached to the back of the heat absorbing plate A, the cooling channel is a semi-rectangular channel, a thermal insulation material is laid behind the semi-rectangular channel, and the heat absorbing plate A, the photovoltaic cell and the semi-rectangular channel are bonded by high-strength epoxy sealant.
The photovoltaic and photothermal integrated seawater desalination system is characterized in that; the solar heat collector preferably uses a flat plate type solar heat collector.
The photovoltaic and photothermal integrated seawater desalination system is characterized in that; the hot water runner is a rounded runner.
The photovoltaic and photothermal integrated seawater desalination system is characterized in that; the water pump includes an IRG type centrifugal pump and an IS type centrifugal pump.
The photovoltaic and photothermal integrated seawater desalination system is characterized in that; the output pipeline of the solar thermal collector adopts a hot dip galvanized steel pipe, the other water conveying pipelines adopt PPR pipes, and all the pipelines need to be laid with heat insulation materials.
The photovoltaic and photothermal integrated seawater desalination system is characterized in that; the output end of the photovoltaic waste heat recovery system is provided with a three-way valve, the three-way valve is arranged between the fresh water tank and the heat preservation water tank, and the outlet end of the water tower is provided with a flow regulating valve.
The photovoltaic and photothermal integrated seawater desalination system is characterized in that; the water tower is provided with a water level sensor, and the outlet of the solar heat collector and the heat-preservation water tank are internally provided with temperature sensors.
The photovoltaic and photothermal integrated seawater desalination system is characterized in that; the inverter system consists of a photovoltaic pumping inverter and a grid-connected inverter.
The utility model has the advantages of as follows: the patent of the utility model discloses a photovoltaic light and heat integration sea water desalination, this system includes: the system comprises a three-phase alternating-current water pump, a water tower, a water conveying pipeline, a solar thermal collector, a photovoltaic cell panel, a cooling channel, a heat insulation material, an inverter system, a seawater desalination system and pipeline accessories. The outer surface of the pipeline needs to be laid with heat insulation materials; the inverter system consists of a photovoltaic pumping inverter and a grid-connected inverter; the photovoltaic cell panel, the cooling channel and the heat insulation material form a photovoltaic and photothermal integrated system; the utility model discloses a will be according to solar radiation intensity and temperature automatic control pipeline discharge to photovoltaic power generation has higher efficiency when guaranteeing that the hot user obtains the hot water and the fresh water of sufficient temperature. The system can simultaneously obtain domestic water, hot water and electric energy, can realize the purpose of efficiently and multistage utilization of solar energy, simultaneously does not need to input other energy except the solar energy in the whole process, and meets the requirements of energy conservation and emission reduction. The solar energy water heater is particularly suitable for being installed and used in rural areas without central heating or remote areas and areas such as islands with power and fresh water resource shortage.
Drawings
Fig. 1 is a schematic view of an installation structure of the system of the present invention;
fig. 2 is a schematic diagram of the structure of the cooling channel in the present invention.
Wherein: 1-heat insulation material, 2-absorber plate A, 3-photovoltaic cell, 4-photovoltaic waste heat recovery system, 5-inverter, 6-solar collector, 7-heat insulation water tank, 8-fresh water tank, 9-IRG water pump, 10-glass plate, 11-overflow plate, 12-absorber plate B, 13-hot water flow channel, 14-water containing tank, 15-water tower, 16-IS type centrifugal pump, 17-high strength epoxy sealant, 18-semi-rectangular flow channel.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings 1-2, wherein the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model discloses an improvement provides a photovoltaic light and heat integration sea water desalination to solve the problem that efficiency reduces, photovoltaic waste heat and solar photovoltaic/thermal system efficiency is not high under the solar cell panel high temperature, and fresh water resource shortage problem here.
The utility model is implemented as follows; a photovoltaic and photothermal integrated seawater desalination system mainly comprises a photovoltaic waste heat recovery system, a solar heat collector 6, a seawater desalination system, a water pump, a water tank, a water tower 15, an inversion system 5 and pipeline accessories.
When the solar seawater desalination device is implemented, the solar battery 3 corresponding to the solar thermal collector 6 is sequentially bonded with the heat absorbing plate A2 and the semi-rectangular channel 18, water flows through the solar battery to absorb heat of the photovoltaic cell panel, then enters the solar thermal collector 6 to be heated again, enters the heat insulating water tank 7, the water in the heat insulating water tank 7 can be used as domestic hot water, and can also be used as hot water flow channels 13 of a seawater desalination system to heat seawater, the hot water in the heat insulating water tank 7 enters the seawater desalination system to transfer heat to the heat absorbing plate B12, the heat absorbing plate B12 absorbs hot water and solar radiation, the seawater is heated to evaporate the seawater, the seawater is condensed on the glass plate 10 to obtain fresh water, and the fresh water flows into the water containing tank 14 along the; the seawater flows out of the water tower 15, flows over the surface of the heat absorbing plate B12, passes through the multi-stage overflow plate 11, finally flows out of the seawater desalination system, and is conveyed into the water tower 15 by the pump again; the water after heating the seawater returns to the photovoltaic waste heat recovery system 4 and enters the next circulation.
During implementation, a three-way valve is arranged behind the photovoltaic waste heat recovery system 4, the three-way valve is arranged between the fresh water tank 8 and the heat preservation water tank 7, and a flow regulating valve is arranged at an outlet of the water tower 15.
During implementation, the inverter system 5 is composed of a photovoltaic pumping inverter and a grid-connected inverter, the solar pump frequency converter inverts direct current generated by the photovoltaic cell panel into three-phase alternating current to be supplied to the water pump, and the grid-connected inverter converts the direct current of the photovoltaic cell panel into alternating current with the same frequency and phase as those of a power grid to be supplied to other electric equipment for use.
During implementation, the water tower 15 is provided with a water level sensor, and the outlet of the solar heat collector 6 and the heat-preservation water tank 7 are internally provided with a temperature sensor. The water pump comprises an IRG type centrifugal pump 9 and an IS type centrifugal pump 16.
The utility model discloses in, the water pipe of 6 outputs of solar collector adopts the hot-galvanize steel pipe, and all the other water pipes adopt the PPR pipe, and all pipelines all need lay the heat preservation.
The utility model discloses among the photovoltaic power plant waste heat utilization system, cooling channel adopts half rectangular cross section's cooling channel, adopts the sealed glue 17 bonding of high strength epoxy between cooling channel and the absorber plate A2.
When the utility model is implemented; the IS type centrifugal pump 16 conveys the seawater into the water tower 15, and the seawater flows into the seawater desalination system from the water tower to be heated and evaporated; hot water in a flow channel 13 at the bottom of the heating plate comes from the photovoltaic waste heat recovery system 4 and the solar heat collector 6, and the hot water is returned to the photovoltaic waste heat recovery system 4 for continuous circulation after heating seawater; the distilled water obtained by evaporation can be directly used by a user, and can also enter a heat-preservation water tank to be used as water supplement or domestic hot water of a photovoltaic waste heat recovery system.
The utility model relates to a photovoltaic light and heat integration sea water desalination's benefit does: the waste heat generated during the power generation of the photovoltaic cell is recovered, the temperature of the photovoltaic cell is reduced, and the power generation efficiency and the solar energy utilization efficiency of the photovoltaic cell are improved; the electric energy generated by the photovoltaic cell is directly converted into the potential energy of water, so that the loss of the electric energy can be effectively avoided while domestic water is provided; the cooling water is reheated, so that hot water with higher temperature can be obtained for hot water supply users to use; fresh water is obtained by evaporating seawater by hot water. The system has simple structure and convenient installation, meets the requirement of the electricity utilization of the domestic water in the island areas with rich solar resources, and can realize more efficient utilization of solar energy.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A photovoltaic and photothermal integrated seawater desalination system is characterized in that; the system comprises a photovoltaic waste heat recovery system (4), a solar heat collector (6), a seawater desalination system, a water pump, a water tank, a water tower (15) and an inversion system (5);
the water tank comprises a heat-preservation water tank (7) and a fresh water tank (8);
the photovoltaic waste heat recovery system (4) is communicated with the solar heat collector (6), the output end of the solar heat collector (6) is communicated with the heat-preservation water tank (7), the output end of the heat-preservation water tank (7) is connected with the seawater desalination system, and the water tower (15) is also communicated with the seawater desalination system;
the seawater desalination system is provided with a glass plate (10), an overflow plate (11), a heat absorption plate B (12), a hot water flow channel (13) and a water containing tank (14); the glass plate (10) corresponds to the upper part of the heat absorbing plate B (12), a hot water flow channel (13) is arranged below the heat absorbing plate B (12), an overflow plate (11) is arranged on the side surface of the heat absorbing plate B (12), the output end of the heat preservation water tank (7) is connected with the hot water flow channel (13), and the output end of the hot water flow channel (13) is connected with the photovoltaic waste heat recovery system (4) and the solar heat collector (6) in a returning mode; the glass plate (10) is correspondingly provided with a water containing groove (14), and the water containing groove (14) is communicated with the fresh water tank (8).
2. The photovoltaic and photothermal integrated seawater desalination system according to claim 1, wherein; the water inlet end of the water tower (15) IS communicated with an IS type centrifugal pump (16).
3. The photovoltaic and photothermal integrated seawater desalination system according to claim 1, wherein; solar collector (6) have absorber plate A (2), photovoltaic cell (3) and cooling channel, have absorber plate A (2) at photovoltaic cell (3) back attached, have cooling channel behind absorber plate A (2), cooling channel is half rectangle channel (18), lay insulation material (1) behind half rectangle channel (18), adopt high strength epoxy to seal between absorber plate A (2), photovoltaic cell (3), half rectangle channel (18) and glue (17) and bond.
4. The photovoltaic and photothermal integrated seawater desalination system according to claim 1, wherein; the solar heat collector (6) preferably uses a flat plate type solar heat collector.
5. The photovoltaic and photothermal integrated seawater desalination system according to claim 1, wherein; the hot water flow passage (13) is a round-cornered flow passage.
6. The photovoltaic and photothermal integrated seawater desalination system according to claim 1, wherein; the water pump comprises an IRG type centrifugal pump (9) and an IS type centrifugal pump (16).
7. The photovoltaic and photothermal integrated seawater desalination system according to claim 1, wherein; the output pipeline of the solar heat collector (6) is a hot galvanized steel pipe, the other water pipelines are PPR pipes, and all the pipelines need to be laid with heat insulation materials (1).
8. The photovoltaic and photothermal integrated seawater desalination system according to claim 1, wherein; the output end of the photovoltaic waste heat recovery system (4) is provided with a three-way valve, the three-way valve is arranged between the fresh water tank (8) and the heat preservation water tank (7), and the outlet end of the water tower (15) is provided with a flow regulating valve.
9. The photovoltaic and photothermal integrated seawater desalination system according to claim 1, wherein; the water tower (15) is provided with a water level sensor, and the outlet of the solar heat collector (6) and the heat-preservation water tank (7) are internally provided with a temperature sensor.
10. The photovoltaic and photothermal integrated seawater desalination system according to claim 1, wherein; the inverter system (5) consists of a photovoltaic pumping inverter and a grid-connected inverter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022135095.1U CN213679908U (en) | 2020-09-25 | 2020-09-25 | Photovoltaic and photothermal integrated seawater desalination system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022135095.1U CN213679908U (en) | 2020-09-25 | 2020-09-25 | Photovoltaic and photothermal integrated seawater desalination system |
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| CN213679908U true CN213679908U (en) | 2021-07-13 |
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| CN202022135095.1U Active CN213679908U (en) | 2020-09-25 | 2020-09-25 | Photovoltaic and photothermal integrated seawater desalination system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114380349A (en) * | 2022-01-21 | 2022-04-22 | 海南大学 | S-shaped MoS2Preparation method of-Ti net photo-electric-thermal seawater desalination membrane |
| CN114604923A (en) * | 2022-05-16 | 2022-06-10 | 广东海洋大学 | Photothermal-photoelectric integrated heat collecting pipe seawater desalting device |
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2020
- 2020-09-25 CN CN202022135095.1U patent/CN213679908U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114380349A (en) * | 2022-01-21 | 2022-04-22 | 海南大学 | S-shaped MoS2Preparation method of-Ti net photo-electric-thermal seawater desalination membrane |
| CN114604923A (en) * | 2022-05-16 | 2022-06-10 | 广东海洋大学 | Photothermal-photoelectric integrated heat collecting pipe seawater desalting device |
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