CN113429049B - Clean energy power generation and seawater desalination system - Google Patents
Clean energy power generation and seawater desalination system Download PDFInfo
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- CN113429049B CN113429049B CN202110704533.8A CN202110704533A CN113429049B CN 113429049 B CN113429049 B CN 113429049B CN 202110704533 A CN202110704533 A CN 202110704533A CN 113429049 B CN113429049 B CN 113429049B
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- 239000013535 sea water Substances 0.000 title claims abstract description 166
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 42
- 238000010248 power generation Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 163
- 238000003860 storage Methods 0.000 claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims abstract description 35
- 239000013505 freshwater Substances 0.000 claims abstract description 32
- 238000001704 evaporation Methods 0.000 claims abstract description 26
- 230000008020 evaporation Effects 0.000 claims abstract description 26
- 238000009833 condensation Methods 0.000 claims abstract description 14
- 230000005494 condensation Effects 0.000 claims abstract description 14
- 238000007872 degassing Methods 0.000 claims abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000002994 raw material Substances 0.000 abstract description 3
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- 238000000034 method Methods 0.000 description 10
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- 238000006243 chemical reaction Methods 0.000 description 7
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
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- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
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- 230000005574 cross-species transmission Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005338 heat storage Methods 0.000 description 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
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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
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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
- C02F1/043—Details
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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
- C02F1/06—Flash evaporation
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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
- 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
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N11/00—Generators or motors not provided for elsewhere; Alleged perpetua mobilia obtained by electric or magnetic means
- H02N11/002—Generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
- H02S10/10—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power including a supplementary source of electric power, e.g. hybrid diesel-PV energy systems
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/009—Apparatus with independent power supply, e.g. solar cells, windpower or fuel cells
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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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention discloses a clean energy power generation and seawater desalination system which comprises a seawater heat treatment tank, wherein the seawater heat treatment tank is connected with a solar seawater desalination system and a second hot water storage tank, the solar seawater desalination system is connected with the second hot water storage tank, a cold seawater tank, a fresh water tank and a first hot water storage tank, the first hot water storage tank is connected with a degassing chamber, the degassing chamber is sequentially connected with a flash evaporation chamber, an evaporation chamber and the fresh water tank, the evaporation chamber, a third solar heat collection pipe and a condensation chamber form a circulation loop, and the condensation chamber is connected with the cold seawater tank and the second hot water storage tank. The invention combines solar energy, temperature difference energy sea water desalination and power generation technologies, utilizes high-temperature sea water generated by solar energy sea water desalination as a temperature difference energy power generation raw material, improves the power generation efficiency of the structure, and overcomes the defect of high sea island energy and fresh water transportation cost because the system supplies power generated by the solar panel assembly as the initial energy of the system.
Description
Technical Field
The invention relates to a seawater desalination system, in particular to a clean energy power generation and seawater desalination system.
Background
The sea island is not only a main target and a carrier for people to develop oceans, but also has important strategic positions in the aspects of territorial delimitation, national defense safety and ecological safety. China has a coastline of over 18000km and nearly 300 km 2 The area of the sea area is vast and there are many islands. The sea island has rich natural resources and beautiful environmental conditions, and gradually becomes a key area for economic development in coastal areas in recent years, particularly the development of sea island tourism resources becomes a new economic growth point in coastal areas.
The problem of energy supply is always the key problem in the development and utilization process of islands. Island areas are mostly far away from the continent, and land power grids cannot cover offshore islands, so that the power supply of the remote islands usually adopts a diesel power generation mode. However, diesel power generation not only consumes non-renewable traditional energy, but also more importantly, noise and emission problems of the diesel generator have adverse effects on the development of the island environment, so that the search for clean and zero-emission novel energy is one of the primary problems in solving the development of the island and protecting the island environment. The renewable energy has the characteristics of being distributed, being capable of being continuously utilized and having little influence on the environment, is very suitable for application and popularization in island regions, and is an important way for optimizing the supply mode of island energy and promoting the sustainable development of islands.
Among various ocean energies, ocean thermal energy is ocean thermal energy, and the energy is mainly derived from solar radiation energy accumulated in the ocean. The ocean temperature difference energy has the characteristics of huge reserves and relative stability along with time change, so that large-scale and stable electric power is hopefully provided for some regions by utilizing the ocean temperature difference energy.
Solar-driven water evaporation is applied as photo-thermal conversion, and due to the fact that photo-thermal conversion efficiency is high and the industrial potential of clean water production is achieved, people attract attention. In recent years, solar-powered evaporation systems have been used as an alternative to conventional volumetric heating evaporation systems to direct the conversion of solar energy to thermal energy at the air/liquid interface, since it can reduce heat loss and improve energy conversion efficiency.
A large amount of ocean temperature difference energy and solar energy around the island are to be developed and utilized, and the method is clean, pollution-free, long in development process and mature in technology, and provides possibility for utilization of two energy sources; in addition, the solar seawater desalination technology can generate high-heat seawater which is used as a temperature difference energy power generation raw material, so that the power generation is more efficient.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a clean energy power generation and seawater desalination system to improve the power generation efficiency.
The technical scheme is as follows: the solar seawater desalination system is connected with the second hot water storage tank, the cold seawater pool, the fresh water pool and the first hot water storage tank, the first hot water storage tank is connected with a degassing chamber, the degassing chamber is sequentially connected with a flash chamber, an evaporation chamber and the fresh water pool, the evaporation chamber, a third solar heat collection pipe and a condensation chamber form a circulation loop, and the condensation chamber is connected with the cold seawater pool and the second hot water storage tank.
The device also comprises a controller, wherein the controller is connected with the pump and the electromagnetic ball valve on each connecting pipeline.
The seawater heat treatment tank is internally provided with a first water level sensor and a second water level sensor, the inlet of the seawater heat treatment tank is respectively connected with a warm seawater inlet pump and a second hot water storage tank, and the water outlet of the seawater heat treatment tank is connected with a solar seawater desalination system.
And solar heat collecting pipes are arranged on connecting pipelines of the seawater heat treatment pool, the second heat water storage tank and the solar seawater desalination system, wherein electromagnetic ball valves are also arranged on the connecting pipelines of the seawater heat treatment pool and the second heat water storage tank.
The solar seawater desalination system is internally provided with an evaporation tank and a cold water pipe, the evaporation tank is connected with a hot water replenishing pipe, and the cold water pipe is connected with a cold water replenishing pipe.
The hot water replenishing pipe is connected with the seawater heat treatment pool, and the cold water replenishing pipe is connected with the cold seawater pool.
The solar seawater desalination system is connected with the fresh water pool through a fresh water outlet and connected with the second hot water storage tank through a cold water outlet pipe.
And a second solar heat collecting pipe is arranged on a connecting pipeline between the solar seawater desalination system and the first heat water storage tank.
And a working medium pump is arranged on a connecting pipeline between the evaporation chamber and the condensation chamber.
The solar heat collecting pipe is sequentially connected with the generator and the power storage station, and the power storage station is connected with the solar photovoltaic power generation assembly.
Has the advantages that: the invention combines the solar energy, the temperature difference energy seawater desalination and the power generation technology, and utilizes the high-temperature seawater generated by the solar seawater desalination as the temperature difference energy power generation raw material, thereby improving the power generation efficiency of the structure; the system takes the electric power generated by the solar panel assembly as the initial energy supply of the system, and the defects of high sea island energy and fresh water transportation cost are overcome; the solar heat energy is obtained by adopting a multi-stage heating mode, the difference value of the temperature difference is improved, the power generation efficiency of the whole structure is high, and the output of electric power and fresh water is stable; the system adopts various hot water and cold water accumulation modes, greatly reduces the influence of environmental factors on the system work, and ensures that the system work is more stable; the intelligent control system water circulation, the heat treatment and the cold treatment process of water reduce the constraint of the environment to the system.
Drawings
FIG. 1 is a diagram of the system components of the present invention;
FIG. 2 is a schematic cross-sectional view of a seawater heat treatment basin according to the present invention;
FIG. 3 is a schematic structural diagram of a solar seawater desalination system according to the present invention;
FIG. 4 is a schematic cross-sectional view of a hot water storage tank of the present invention;
FIG. 5 is a schematic cross-sectional view of a cold treatment tank of the present invention;
FIG. 6 is a schematic view of a water circulation control system of the present invention;
FIG. 7 is a flow chart of the operation of the water circulation control system of the present invention.
Detailed Description
The invention will be further explained with reference to the drawings.
As shown in fig. 1, the present invention includes a warm seawater inlet pump 1, a seawater heat treatment tank 2, a hot seawater outlet pump 3, a first solar heat collecting pipe 4, a solar seawater desalination system 5, a second solar heat collecting pipe 6, a first hot water storage tank 7, a hot water pump 8, a degassing chamber 9, a flash chamber 10, an evaporation chamber 11, a working medium pump 12, a third solar heat collecting pipe 13, an air turbine generator 14, a condensation chamber 15, a cold seawater inlet pump 16, a cold seawater tank 17, a first cold seawater outlet pump 18, a second cold seawater outlet pump 19, a second hot water storage tank 20, a fourth solar heat collecting pipe 21, a fresh water tank 22, a water filtering tank 23, a fresh water pump 24, a water tower 25, an electromagnetic ball valve 26, a solar photovoltaic power generation assembly 27, a power storage station 28, a controller 29, flange connectors, screw valves, water pipes, and a plurality of signal lines.
When the system works and operates, all the screw valves are in an open state, warm seawater enters the water pump 1 to pump warm seawater on the surface layer of the ocean and is stored in the seawater heat treatment pond 2 to further absorb heat and improve the water temperature; the heated hot seawater is pumped to a solar seawater desalination system 5 by a hot seawater outlet pump 3, and is further heated by a first solar heat collecting pipe 4 in the pumping process, so that the solar seawater desalination system 5 can perform a better evaporation and condensation effect; the high-temperature hot seawater pumped to the solar seawater desalination system 5 and the cold seawater pumped from the cold seawater pool 17 by the second cold seawater outlet pump 19 are subjected to steam condensation to generate fresh water; fresh water generated in the solar seawater desalination system 5 flows into the fresh water pool 22; the seawater which absorbs heat after the steam condensation action is finished flows into the second hot water storage tank 20 to be stored, and the seawater flows into the seawater heat treatment pool 2 through the fourth solar heat collecting pipe 21 after being heated for recycling, so that the pumping cost is saved, and the energy conversion efficiency is improved; hot water overflowing from the solar seawater desalination system 5 further absorbs solar energy through the second solar heat collecting pipe 6, the temperature is raised, and the hot water enters the first hot water storage tank 7 for storage for subsequent use; high-temperature hot water in the first hot water storage tank 7 is pumped into a degassing chamber 9 by a hot water pump 8 and is degassed, and then enters a flash evaporation chamber 10 to form high-temperature water vapor, and further fully contacts with working medium liquid in the flash evaporation chamber 10, and the working medium liquid adopts an inert low-boiling-point liquefied substance such as hydrogen fluoride liquid, but not limited to the above, on one hand, the working medium liquid is evaporated into high-temperature gas, and on the other hand, the high-temperature water vapor is condensed into fresh water; the condensed fresh water flows into the fresh water basin 22.
The working medium liquid is pumped to the evaporation chamber 11 by the working medium pump 12; the high-temperature working medium gas flows through the third solar heat collecting pipe 13, further rises in temperature and expands, and the gas turbine generator 14 is better pushed to rotate to generate power; the gas turbine generator 14 generates electrical energy that is distributed to the electrical storage station 28 for use; after the high-temperature working medium liquid pushes the gas turbine generator 14 to generate electricity, the high-temperature working medium liquid is recycled and flows into the condensation chamber 15, acts on cold seawater pumped by the first cold seawater outlet pump 18 from the cold seawater pool 17 in the condensation chamber 15, is condensed into working medium liquid, and is pumped to the evaporation chamber by the working medium pump 12 to be recycled.
The cold seawater which is condensed and absorbs heat flows into the second hot water storage tank 20 to be accumulated, and then flows into the seawater heat treatment pool 2 through the fourth solar heat collecting pipe 21 after being heated for recycling, so that the pumping cost is saved, and the energy conversion efficiency is improved; the working medium liquid is recycled, and loss can be replenished periodically; the cold seawater in the cold seawater pool 17 is pumped from the deep sea area by a cold seawater inlet pump 16; the electric energy generated by the solar photovoltaic power generation module 27 is distributed to the electric power storage station 28 as initial electric power and auxiliary electric power; fresh water accumulated in the fresh water tank 22 flows into the water filtering tank 23 to be further filtered into edible fresh water, and the edible fresh water is pumped into a water tower 25 by a fresh water pump 24 for use; the controller 29 is a central component of the water circulation control system to regulate and control the water circulation process of the whole system.
The system can be cleaned regularly to ensure normal work. Before the cleaning work is started, the hot seawater outlet pump 3, the first cold seawater outlet pump 18 and the second cold seawater outlet pump 19 are closed to cut off the water supply of the system. The cleaning process of the first hot water storage tank 7 and the second hot water storage tank 20 is as follows: closing the lower screwing valve, opening the lower square flange connecting piece, opening the lower screwing valve, and taking away system impurities by utilizing water flow backflow impact force; the cleaning process of the solar seawater desalination system 5 comprises the following steps: closing the lower screwing valve, opening the lower square flange connecting piece, opening the lower screwing valve, and taking away system impurities by utilizing water flow backflow impact force; the cleaning process of the seawater heat treatment tank 2 comprises the following steps: closing the lower screwing valve, opening the lower square flange connecting piece, opening the lower screwing valve, and taking away system impurities by utilizing water flow backflow impact force; the cleaning process of the cold sea water pool 17 comprises the following steps: and closing the lower screwing valve, opening the lower square flange connecting piece, opening the lower screwing valve, and taking away system impurities by utilizing the water flow backflow impact force.
As shown in fig. 2, the seawater heat treatment pool 2 includes an electric pulley 21, a cable 22, an outer wall 23 (a waterproof protective layer, a heat insulating layer, and a heat insulating layer made of tin foil), a first water level sensor 24, a second water level sensor 25, a main water inlet 26, a third water outlet 27, and a secondary water inlet 28. Two top plates are arranged above the heat treatment pool 2 and are respectively connected with the electric pulley 21 through a cable 22, when sunlight is sufficient in daytime, the electric pulley 21 lifts the two top plates through the cable 22 to receive solar heat, the top plates are erected to prevent sea wind from taking away heat, when sunlight is insufficient at night, the top plates are closed, and the whole heat treatment pool 2 is a heat preservation system; the outer wall 23 is composed of a heat-insulating layer 232, a first waterproof protective layer 233 and a tin foil paper heat-insulating layer 231, and forms a system for receiving heat to enter and preventing heat from dissipating; first water level detector 24 is located the sea water thermal treatment pond top and slightly is below, and second water level detector 25 is located main water inlet and slightly is above (the particular case is decided with engineering reality), and first water level detector 24, second water level detector 25 and controller 29, warm sea water intake pump 1, hot sea water outlet pump 3, the cooperation of electromagnetism ball valve 26 guarantee that the system has sufficient water yield on the one hand, and on the other hand prevents that the too much rivers of pump water from overflowing, extravagant.
As shown in fig. 3, the solar seawater desalination system 5 comprises a hot water replenishing pipe 51, a U-shaped evaporation tank 52, a hot water overflow 53, a cold water replenishing pipe 54, a cold water outlet pipe 55, an annular cold water pipe 56, and a fresh water outlet 57; hot water further absorbing heat through the first solar heat collecting pipe 4 enters the U-shaped evaporation tank 52 through the hot water replenishing pipe 51, and when the water level of the hot water is higher than the hot water overflow port 53, the hot water further absorbs heat through the second solar heat collecting pipe 6 and enters the first heat storage tank 7; the second cold seawater outlet pump 19 pumps cold seawater from the cold seawater pool 17, the cold seawater enters the annular cold water pipe 56 through the cold water replenishing pipe 54, and the cold seawater flows into the second hot water storage tank 20 through the cold water outlet pipe 55 after absorbing heat for recycling, so that the pumping cost is saved, and the energy conversion efficiency is improved; the hot water vapor in the U-shaped evaporation tank 52 rises and is liquefied into fresh water after encountering the annular cold water pipe 56, and the fresh water flows down through the pipe wall of the annular cold water pipe 56 and flows into the fresh water tank 22 through the fresh water outlet 57, so that the seawater desalination treatment is completed.
As shown in fig. 4, the first hot water storage tank 7 comprises an outer shell 71, a glass layer 72 containing a tin foil paper coating, a second glass layer 73, a vacuum layer 74, a second water inlet 75 and a fourth water outlet 76; the outer shell 71 plays a protective role to protect the inner layer structure, and the glass layer 72 containing the tin foil paper coating and the second glass layer 73 form a vacuum layer 74 to reduce heat loss forms such as heat transfer, heat radiation and the like and reduce heat loss of hot water; the water inlet 76 and the water outlet 77 are used for communicating the rest of the system.
As shown in fig. 5, the cold treatment tank 17 is composed of a tinfoil paper layer 171, a heat insulation layer 172, a second waterproof protection layer 173, a first water level detector 174, a second water level detector 175, a first water inlet 176, a first water outlet 177, and a second water outlet 178; the cold treatment tank 17 is arranged underground to reduce the absorption of heat, the tin foil paper layer 171 is positioned on the outer wall of the cold treatment tank to reduce the radiation of external heat, the heat insulation layer 172 is filled on the side wall of the cold treatment tank to reduce the inward transmission of external heat, and the second waterproof protection layer 173 plays a role of protection to prolong the service life of the water tank; first water level detector 174 is located the little below in cold sea pond top, and second water level detector 175 is located the water inlet and slightly above (the particular case is decided with the engineering reality), and first water level detector 174, second water level detector 175 and controller 29, cold sea water intake pump 16, first cold sea water outlet pump 18, the cooperation of second cold sea water outlet pump 19 guarantee that the system has sufficient water yield on the one hand, and on the other hand prevents that the pump water is too much rivers to spill over, extravagant.
As shown in fig. 6, the water circulation control system mainly comprises a controller 29, a warm seawater inlet pump 1, a hot seawater outlet pump 3, an electromagnetic ball valve 26, a cold seawater inlet pump 16, a first cold seawater outlet pump 18, a second cold seawater outlet pump 19, and the like.
As shown in fig. 7, the control flow of the water circulation control system is that when the system starts to operate, the warm seawater inlet pump 1 and the cold seawater inlet pump 16 are turned on, the hot seawater outlet pump 3, the electromagnetic ball valve 26, the first cold seawater outlet pump 18 and the second cold seawater outlet pump 19 are turned off, the water level detectors in the seawater heat treatment tank 2 and the cold seawater tank 17 are turned on, whether the water level detectors in the seawater heat treatment tank 2 and the second cold seawater tank 17 detect water flow is detected, if the water flow is not detected, each part of the system is kept in an initial working state, if the water flow is detected, the warm seawater outlet pump 3, the electromagnetic ball valve 26, the first cold seawater outlet pump 18 and the second cold seawater outlet pump 19 are turned on, the system enters a trial-run state (enters a formal operation when fresh water and current are produced), and after the system enters the formal operation, the warm seawater inlet pump 1, the cold seawater inlet pump 16 and the hot seawater outlet pump 3, The electromagnetic ball valve 26, the first cold seawater outlet pump 18 and the second cold seawater outlet pump switch 19 are all started, the water level detectors in the seawater heat treatment tank 2 and the cold seawater pool 17 are all started to work, and the subsequent circulation control of hot water and cold water is separately carried out.
The hot seawater circulation control is to determine whether the second water level sensor 25 of the seawater heat treatment tank 2 detects water flow, and if not, all system components keep formal operation working state; if water flow is detected, the warm seawater inlet pump 1 and the electromagnetic ball valve 26 are closed, the hot seawater outlet pump 3 works normally, and the water level detector continues to work; whether a first water level sensor 24 of the seawater heat treatment pool 2 detects water flow or not, if not, the warm seawater inlet pump 1 and the electromagnetic ball valve 26 are closed, the hot seawater outlet pump 3 normally works, and the water level detector continues to work; if the water flow is detected, the warm seawater inlet pump 1, the electromagnetic ball valve 26 and the hot seawater outlet pump 3 are all started to work normally.
The cold seawater circulation control is to determine whether the first water level detector 174 in the cold seawater pool 17 detects water flow, and if not, each system component keeps a formal operation state; if the water flow is detected, the cold seawater inlet pump 16 is closed, the first cold seawater outlet pump 18 and the second cold seawater outlet pump 19 work normally, and the water level detector continues to work; whether the second water level detector 175 of the cold sea pool detects water flow; if not, the cold seawater inlet pump 16 is closed, the first cold seawater outlet pump 18 and the second cold seawater outlet pump 19 work normally, the water level detector continues working, and if water flow is detected, the cold seawater inlet pump 16, the first cold seawater outlet pump 18 and the second cold seawater outlet pump 19 are all opened to work normally.
Claims (5)
1. The clean energy power generation and seawater desalination system is characterized by comprising a seawater heat treatment pool (2), wherein the seawater heat treatment pool (2) is connected with a solar seawater desalination system (5) and a second hot water storage tank (20), the solar seawater desalination system (5) is connected with the second hot water storage tank (20), a cold seawater pool (17), a fresh water pool (22) and a first hot water storage tank (7), the first hot water storage tank (7) is connected with a degassing chamber (9), the degassing chamber (9) is sequentially connected with a flash evaporation chamber (10), an evaporation chamber (11) and the fresh water pool (22), the evaporation chamber (11) forms a circulation loop with a third solar heat collection pipe (13) and a condensation chamber (15), and the condensation chamber (15) is connected with the cold seawater pool (17) and the second hot water storage tank (20);
the seawater heat treatment pool comprises an electric pulley, a cable, an outer wall, a first water level sensor, a second water level sensor, a main water inlet, a third water outlet and a secondary water inlet, wherein two top plates are arranged above the heat treatment pool and are respectively connected with the electric pulley through the cable;
an evaporation tank and a cold water pipe are arranged in the solar seawater desalination system (5), the evaporation tank is connected with a hot water replenishing pipe (51), the cold water pipe is connected with a cold water replenishing pipe (54), the hot water replenishing pipe (51) is connected with a seawater heat treatment pool (2), the cold water replenishing pipe (54) is connected with a cold seawater pool (17), the solar seawater desalination system (5) is connected with a fresh water pool (22) through a fresh water outlet (57) and is connected with a second hot water storage tank (20) through a cold water outlet pipe (55), and a second solar heat collection pipe (6) is arranged on a connecting pipeline of the solar seawater desalination system (5) and the first hot water storage tank (7);
the seawater desalination device is characterized by further comprising a water circulation control system, wherein the water circulation control system comprises a controller, a warm seawater inlet pump, a hot seawater outlet pump, an electromagnetic ball valve, a cold seawater inlet pump, a first cold seawater outlet pump and a second cold seawater outlet pump, and the controller (29) is connected with the pumps on the connecting pipelines and the electromagnetic ball valve (26).
2. The clean energy power generation and seawater desalination system as claimed in claim 1, wherein a first water level sensor (24) and a second water level sensor (25) are arranged in the seawater heat treatment tank (2), the inlet of the seawater heat treatment tank (2) is connected with the warm seawater inlet pump (1) and the second hot water storage tank (20) respectively, and the outlet is connected with the solar seawater desalination system (5).
3. The clean energy power generation and seawater desalination system according to claim 1 or 2, wherein the connecting pipeline between the seawater heat treatment pond (2) and the second hot water storage tank (20) and the connecting pipeline between the seawater heat treatment pond (2) and the solar seawater desalination system (5) are respectively provided with a solar heat collecting pipe, and the connecting pipeline between the seawater heat treatment pond (2) and the second hot water storage tank (20) is also provided with an electromagnetic ball valve (26).
4. The clean energy power generation and seawater desalination system as claimed in claim 1, wherein the connection pipeline between the evaporation chamber (11) and the condensation chamber (15) is provided with a working medium pump (12).
5. The clean energy power generation and seawater desalination system as claimed in claim 1, wherein the third solar heat collection pipe (13) is connected with the gas turbine generator (14) and the power storage station (28) in sequence, and the power storage station (28) is connected with the solar photovoltaic power generation assembly (27).
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| CN115215497A (en) * | 2022-07-19 | 2022-10-21 | 上海毅亚德科技有限公司 | Photo-thermal power generation and seawater desalination co-production system with convex lens array energy gathering module |
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| CN103758712A (en) * | 2014-01-03 | 2014-04-30 | 西安交通大学 | Seawater desalination system driven by combination of solar energy and ocean thermal energy |
| CN106949002A (en) * | 2017-04-06 | 2017-07-14 | 华北电力大学 | A kind of new water-electricity cogeneration ocean energy utilization system |
| CN112093837B (en) * | 2020-09-21 | 2021-11-23 | 扬州市杭集创意设计园有限公司 | Seawater desalination treatment method based on clean energy |
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