CN116655037B - Sea water desalination treatment system of small-sized mobile operation platform - Google Patents
Sea water desalination treatment system of small-sized mobile operation platform Download PDFInfo
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- CN116655037B CN116655037B CN202310935025.XA CN202310935025A CN116655037B CN 116655037 B CN116655037 B CN 116655037B CN 202310935025 A CN202310935025 A CN 202310935025A CN 116655037 B CN116655037 B CN 116655037B
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- 239000013535 sea water Substances 0.000 title claims abstract description 151
- 238000010612 desalination reaction Methods 0.000 title claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 150
- 238000001704 evaporation Methods 0.000 claims abstract description 74
- 230000008020 evaporation Effects 0.000 claims abstract description 74
- 239000013505 freshwater Substances 0.000 claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 238000005086 pumping Methods 0.000 claims abstract description 8
- 239000005357 flat glass Substances 0.000 claims description 14
- 238000007667 floating Methods 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 9
- 238000011033 desalting Methods 0.000 claims description 4
- 238000005338 heat storage Methods 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 15
- 239000011552 falling film Substances 0.000 description 11
- 230000009286 beneficial effect Effects 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000008602 contraction Effects 0.000 description 4
- 239000006059 cover glass Substances 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 208000034699 Vitreous floaters Diseases 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001223 reverse osmosis Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- 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
-
- 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, fuel cells
-
- 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
- Y02A20/212—Solar-powered wastewater sewage treatment, e.g. spray evaporation
Landscapes
- 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 application discloses a small-sized mobile operation platform sea water desalination treatment system in the sea water desalination treatment field, which comprises: the evaporation device comprises an evaporation box, and a plurality of heating plates are arranged in the evaporation box; a fresh water storage tank; the water supply device comprises a water suction pump and a seawater storage tank, a first conveying pipe is communicated between the seawater storage tank and the evaporation tank, a first one-way valve is arranged on the first conveying pipe, a second conveying pipe is communicated between the seawater storage tank and the water inlet pipe, and a second one-way valve is arranged on the second conveying pipe; the solar photovoltaic-thermoelectric system comprises a photovoltaic-thermal energy unit and a photovoltaic-electric energy unit, wherein the photovoltaic-thermal energy unit is used for providing heat energy for the evaporation device, and the photovoltaic-electric energy unit is used for providing electric energy for the water suction pump. The scheme is provided with the seawater storage tank, the seawater is extracted before desalinating the seawater for storage, and the seawater in the evaporation tank is supplied with water through the seawater storage tank after being distilled, so that the working times of the water pump are reduced, and the continuous working of the water pumping system is not needed.
Description
Technical Field
The application belongs to the field of sea water desalination treatment, and particularly relates to a sea water desalination treatment system of a small mobile operation platform.
Background
With the rapid development of the fields of global industry, traffic, energy and the like, a large amount of fossil fuels are combusted to release a large amount of carbon dioxide, methane and other room gases, so that the surface temperature of the earth is gradually increased, partial rivers are gradually dried, fresh water resources are in shortage, and in order to relieve the shortage of the fresh water resources, the countries actively develop or apply sea water desalination as a substitute water source to increase the quantity of autonomous water sources.
The seawater desalination is a technology for removing salt and impurities in seawater to obtain fresh water by a certain means, and can ensure stable water supply such as coastal resident drinking water, industrial boiler water supplementing and the like.
Through decades of development, the seawater desalination methods are various, including stage flash evaporation, thin film and the like, reverse osmosis, low-temperature multi-effect distillation and the like, and as disclosed in the patent with publication number CN103288157B, a seawater desalination device comprises a hot water treatment device, an evaporator (1), a self-excited shower transverse tube falling film evaporation-condenser (2) and a condenser (3); the evaporator (1) adopts a falling film device, and comprises a liquid distributor and a falling film pipe positioned below the liquid distributor; the hot water treatment device is connected with the falling film pipe through a connecting water pipe, and the falling film pipe, the connecting water pipe and the hot water treatment device form a closed hot water circulation channel; the evaporator (1) is connected with the self-excitation horizontal-spray-tube falling-film evaporation-condenser (2) through a steam pipeline and a seawater connecting water pipe respectively, and a pressure regulating device is arranged in the steam pipeline; the self-excitation cross-flow tube falling film evaporation-condenser (2) is connected with the condenser (3) through a fresh water pipeline; the pressure regulating device comprises a vacuum pump (10), a first valve (9) and a second valve (11); the steam pipeline for connecting the evaporator (1) and the self-excitation cross-flow tube falling film evaporation-condenser (2) comprises: a first steam pipe connected with the evaporator (1) and the vacuum pump (10), a second steam pipe connected with the self-excited horizontal pipe falling film evaporation-condenser (2) and the vacuum pump (10), and a third steam pipe connected with the self-excited horizontal pipe falling film evaporation-condenser (2) and the vacuum pump (10); the first valve (9) is positioned in the first steam pipe, the second valve (11) is positioned in the second steam pipe, and the third steam pipe is a continuous pipeline.
The device adopts a distillation method to desalinate seawater, and then adjusts the steam flow between an evaporator, self-excitation cross-flow tube falling film evaporation and a condenser through a vacuum pump to condense the seawater into fresh water. However, the device has more electric equipment, a pumping system is required to continuously work to convey the seawater to the evaporator when the seawater is desalinated, and the device has high energy consumption and is not suitable for a small-sized mobile operation platform, so the seawater desalination treatment system of the mobile operation platform is provided.
Disclosure of Invention
The application aims to provide a seawater desalination treatment system of a small mobile operation platform, which aims to solve the problems that in the prior art, more electrical equipment is needed, a pumping system is required to continuously work to convey seawater to an evaporator during seawater desalination, the energy consumption is high, and the system is not suitable for the use of the small mobile operation platform.
In order to achieve the above object, the technical scheme of the present application is as follows: a small-sized mobile operation platform sea water desalination treatment system comprises:
the evaporation device comprises an evaporation box for desalting seawater, wherein a plurality of heating plates are arranged in the evaporation box and are perpendicular to the bottom of the evaporation box;
the fresh water storage tank is used for storing fresh water after the sea water desalination treatment;
the water supply device comprises a water suction pump and a seawater storage tank:
the water pump is used for pumping seawater, the water outlet end of the water pump is communicated with the water inlet end of the evaporation tank through a water inlet pipe, the water outlet end of the evaporation tank is communicated with a water outlet pipe, the water outlet pipe comprises a straight pipe and a threaded pipe which are sequentially communicated, the threaded pipe is wound on the water inlet pipe, and the water outlet end of the threaded pipe is communicated with the fresh water storage tank;
the seawater storage tank is used for storing seawater and supplying water to the evaporation tank, a first conveying pipe is communicated between the seawater storage tank and the middle part of the side wall of the evaporation tank, a first one-way valve is arranged on the first conveying pipe, a through hole is arranged at the top of the seawater storage tank, a sliding rod is connected in the through hole in a sliding manner, the part of the sliding rod, which is positioned outside the seawater storage tank, is linked with a piston of the first one-way valve, a floating ball is connected to the part of the sliding rod, which is positioned in the seawater storage tank, the top of the floating ball is provided with a first magnetic sheet, a second magnetic sheet is arranged at the edge of the through hole, the first magnetic sheet is separated from the second magnetic sheet in an initial state, the first one-way valve is in an open state, a second conveying pipe is communicated between the seawater storage tank and a water inlet pipe, a second one-way valve is arranged on the second conveying pipe, a heat conducting ring is arranged on one side of the water inlet pipe, which is close to the evaporation tank, and is connected with a shrinkage spring, one end of the shrinkage spring, which is far away from the heat conducting ring, is linked with the piston of the second one-way valve, and the second one-way valve is in a closed state;
the solar photovoltaic-thermoelectric system is used for converting solar energy into electric energy and heat energy and comprises a photovoltaic-heat energy unit and a photovoltaic-electric energy unit, wherein the photovoltaic-heat energy unit is used for providing heat energy for the evaporation device, and the photovoltaic-electric energy unit is used for providing electric energy for the water suction pump as a power source.
The principle and beneficial effect of this scheme:
the solar energy and solar energy combined water heater is characterized in that the water inlet pipe and the water suction pump are placed in seawater, the photovoltaic-electric energy unit supplies electric energy to the water suction pump, the water suction pump pumps the seawater to the evaporation tank, the middle part of the side wall of the evaporation tank is communicated with the first conveying pipe, after the seawater in the evaporation tank exceeds a water level line of the first conveying pipe, the redundant seawater flows to the seawater storage tank through the first conveying pipe, when the seawater storage tank is gradually filled with the seawater, the floating ball floats upwards along the seawater water level line, the sliding rod slides upwards along the through hole, the piston in the first one-way valve is closed, the first one-way valve can be closed, the photovoltaic-heat energy unit starts to work, the seawater in the evaporation tank is heated and evaporated, the evaporated water vapor flows along the water outlet pipe, and the threaded pipe of the water outlet pipe is wound on the water inlet pipe, and the low-temperature seawater absorbs the heat of the water vapor in the threaded pipe, so that the water vapor is condensed into fresh water and is conveyed to the fresh water storage tank.
According to the scheme, the seawater storage tank is arranged, the seawater is extracted before the seawater is desalted, the seawater is stored after the seawater in the evaporation tank is distilled, the water is supplied through the seawater storage tank, the working times of the water pump are reduced, the continuous work of the water pumping system is not needed, the water outlet pipe is arranged to be wound on the water inlet pipe in a threaded mode, the heat exchange is carried out by utilizing the seawater in a low-temperature state and the evaporated vapor, a condensing device is not needed to be additionally arranged, the evaporated vapor can be condensed, the use of condensing equipment is reduced, the energy is effectively saved, the structure is simple, the volume is small, the device is more suitable for a small-sized mobile operation platform, the problems that the prior art electrical equipment is more, the water pumping system is required to continuously work to convey the seawater to the evaporator during the seawater desalination, the energy consumption is large, and the device is not suitable for the use of the small-sized mobile operation platform are solved, meanwhile, the seawater to be desalted can be preheated during the heat exchange, the vapor can be evaporated to reach the boiling point after the seawater enters the evaporation tank, and the seawater can be vaporized, and the seawater can be the boiling point of the seawater can be desalinated, and the seawater desalting efficiency.
In addition, the solar photovoltaic-thermoelectric system is utilized to convert solar energy into electric energy and heat energy, and the heat energy and the electric energy are respectively provided for the evaporation tank and the water suction pump, so that extra fuel combustion is not needed, the energy is saved, and the green desalination of sea water is realized.
Additionally, when the seawater storage tank stores water, the seawater storage tank is gradually filled with seawater, the floating ball floats upwards along with the seawater level line to drive the sliding rod to slide upwards along the through hole, so that the piston in the first one-way valve is closed, the first one-way valve can be closed to stop storing water, and the first magnetic sheet is adsorbed on the second magnetic sheet; when the evaporation tank is filled with seawater gradually, the heat in the evaporation tank continues to heat the seawater, the heat conduction ring does not have heat, the shrinkage spring restores to an initial state, the piston of the second one-way valve is closed, the first magnetic sheet is adsorbed on the second magnetic sheet after the water storage of the seawater storage tank is finished, the first one-way valve cannot be opened, and the water vapor in the evaporation tank cannot flow to the seawater storage tank through the first conveying pipe.
According to the scheme, the first one-way valve is closed by utilizing water pressure to stop storing seawater, and when the seawater needs to be stored again, the sliding rod is pushed downwards manually, so that the first magnetic sheet is separated from the second magnetic sheet, and the first one-way valve can be opened; the second check valve is opened and closed to control the water supply of the evaporation tank by utilizing the temperature difference, so that manual watching is not needed, and the control equipment is not needed to be additionally arranged, so that the sea water desalination can be independently performed, the equipment use is reduced, the energy is saved, the influence of the offshore operation environment is avoided, the structure is simple, the volume is small, the device is suitable for a small-sized mobile operation platform, and the use of the large-sized mobile operation platform can be met.
Further, a normally-closed power switch is arranged on the water suction pump, a normally-closed contact of the normally-closed power switch is connected to the portion, located outside the seawater storage tank, of the sliding rod, the sliding rod can be linked with the normally-closed power switch, and in an initial state, the normally-closed contact on the sliding rod is connected with the normally-closed power switch.
The beneficial effects are that: when the seawater storage tank needs to store water, a normally-closed contact on the sliding rod is connected with a normally-closed power switch, and a power supply is connected with a water pump to work; when the seawater storage tank finishes storing water, the floating ball floats upwards to drive the sliding rod to slide upwards, the first one-way valve is closed, meanwhile, the normally closed contact on the sliding rod is disconnected with the normally closed power switch, the water pump stops working, the water pump can be independently controlled to be closed without manual operation, the water pump can be closed in time through linkage of the sliding rod and the normally closed power switch, and energy sources are effectively saved.
Further, a U-shaped pipe is arranged between the threaded pipe of the water outlet pipe and the fresh water storage tank, and the U-shaped pipe is placed in the sea water.
The beneficial effects are that: the U-shaped pipe is placed in the seawater, and the low temperature of the seawater is utilized to further condense the vapor and the fresh water in the water outlet pipe, so that the vapor can be fully condensed when entering the fresh water storage tank, the waste of the vapor is avoided, and the fresh water yield is improved.
Further, the water inlet end of the water suction pump is rotationally connected with a circular ring, one side, away from the water suction pump, of the circular ring is fixedly connected with a protective cover, and the protective cover is elliptical.
The beneficial effects are that: when the water pump works, because of water flow impact, the circular ring and the protective cover rotate, so that floaters can move along with the diffused water flow direction, and the floaters are prevented from entering the water pump.
Further, a permeable membrane is bonded to the inner side of the protective cover.
The beneficial effects are that: the permeable membrane can carry out preliminary desalination to the sea water, improves sea water desalination treatment efficiency, and when the protection casing rotates, partial rivers rotate along with the protection casing, rise along with the rivers water level of direction of rotation, and the potential energy increases, can intermittently increase the impact of sea water to the permeable membrane, avoids the permeable membrane jam.
Further, the solar photovoltaic-thermoelectric system includes a solar photovoltaic panel and a thermal storage device:
the solar photovoltaic panel comprises a light splitting type cover plate glass layer, a first EVE layer, a storage battery piece, a second EVE layer and a back plate which are sequentially attached, and the storage battery piece is electrically connected with the normally closed power switch;
the heat storage device comprises a heat collector, one end of the heat collector is positioned between the light splitting type cover plate glass layer and the first EVE layer, the other end of the heat collector is communicated with a heat transfer pipe, and one end of the heat transfer pipe, which is far away from the heat collector, is connected with a heating plate.
The beneficial effects are that: according to the scheme, the light-splitting cover plate glass layer is used for decoupling photovoltaic and photo-thermal, a part of solar energy passes through the light-splitting cover plate glass layer and is subjected to photoelectric conversion with the first EVE layer, electric energy is stored in the storage battery, the rest solar energy is accumulated by the heat collector, the heat is transferred to the heating plate through the heat transfer pipe to heat the evaporation box, the simultaneous conversion of photovoltaic-thermal energy and photovoltaic-electric energy is realized, and the utilization rate of the solar energy is improved.
Further, the light splitting cover glass layer is concave, and the convex surface of the light splitting cover glass layer faces the first EVE layer.
The beneficial effects are that: the concave light splitting cover plate glass layer can better accumulate heat and improve the utilization rate of solar energy.
Further, an insulating layer is arranged outside the evaporation tank.
The beneficial effects are that: the heat preservation layer can avoid heat loss in the evaporation tank and influence desalination efficiency, and meanwhile, the second one-way valve is prevented from being opened by mistake due to the fact that the heat conduction ring absorbs heat when seawater is still in the evaporation tank.
Drawings
Fig. 1 is a front view of a seawater desalination treatment system according to an embodiment of the present application.
Fig. 2 is an enlarged view at a in fig. 1.
Fig. 3 is an enlarged view at B in fig. 1.
Fig. 4 is a cross-sectional view of a seawater storage tank of a seawater desalination treatment system according to an embodiment of the present application.
Fig. 5 is a cross-sectional view of an evaporation tank of a desalination treatment system according to an embodiment of the application.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: the solar energy water heater comprises a seawater storage tank 1, a second conveying pipe 2, a protective cover 3, a water suction pump 4, a water inlet pipe 5, a threaded pipe 6, a U-shaped pipe 7, a fresh water storage tank 8, a straight pipe 9, an evaporation tank 10, a solar energy photovoltaic panel 11, a heat transfer pipe 12, a first conveying pipe 13, a first one-way valve 14, a heat conducting ring 15, a contraction spring 16, a second one-way valve 17, a sliding rod 18, a floating ball 19 and a heating plate 20.
Example 1
An example is substantially as shown in figures 1 to 5 of the accompanying drawings: a small-sized mobile operation platform sea water desalination treatment system comprises:
the evaporation device comprises an evaporation tank 10 for desalting seawater, wherein a plurality of heating plates 20 are arranged in the evaporation tank 10, and the heating plates 20 are arranged perpendicular to the bottom of the evaporation tank 10;
a fresh water storage tank 8 for storing fresh water after the sea water desalination treatment;
the water supply device comprises a water suction pump 4 and a seawater storage tank 1:
the water pump 4 is used for pumping seawater, the water outlet end of the water pump 4 is communicated with the water inlet end of the evaporation tank 10 through the water inlet pipe 5, the water outlet end of the evaporation tank 10 is communicated with the water outlet pipe, the water outlet pipe comprises a straight pipe 9 and a threaded pipe 6 which are sequentially communicated, the threaded pipe 6 is wound on the water inlet pipe 5, and the water outlet end of the threaded pipe 6 is communicated with the fresh water storage tank 8;
the seawater storage tank 1 is used for storing seawater and supplying water to the evaporation tank 10, a first conveying pipe 13 is communicated between the seawater storage tank 1 and the middle part of the side wall of the evaporation tank 10, a first one-way valve 14 is arranged on the first conveying pipe 13, a through hole is formed in the top of the seawater storage tank 1, a sliding rod 18 is connected in the through hole in a sliding manner, the part of the sliding rod 18 positioned outside the seawater storage tank 1 is linked with a piston of the first one-way valve 14, a floating ball 19 is connected to the part of the sliding rod 18 positioned in the seawater storage tank 1, a first magnetic sheet is arranged at the top of the floating ball 19, a second magnetic sheet is arranged at the edge of the through hole, in an initial state, the first magnetic sheet is separated from the second magnetic sheet, the first one-way valve 14 is in an open state, a second conveying pipe 2 is communicated between the seawater storage tank 1 and the water inlet pipe 5, a second one-way valve 17 is arranged on the second conveying pipe 2, a heat conducting ring 15 is arranged on one side of the water inlet pipe 5 close to the evaporation tank 10, the heat conducting ring 15 is connected with a shrinkage spring 16, one end of the shrinkage spring 16 far away from the heat conducting ring 15 is linked with the piston of the second one-way valve 17, in the initial state, and the second one-way valve 17 is in a closed state;
the solar photovoltaic-thermoelectric system is used for converting solar energy into electric energy and heat energy, and comprises a photovoltaic-heat energy unit and a photovoltaic-electric energy unit, wherein the photovoltaic-heat energy unit is used for providing heat energy for the evaporation device, and the photovoltaic-electric energy unit is used for providing electric energy for the water suction pump 4 as a power source.
The specific implementation process is as follows:
the water inlet pipe 5 and the water suction pump 4 are placed in seawater, the photovoltaic-electric energy unit supplies electric energy to the water suction pump 4, the water suction pump 4 pumps the seawater to flow to the evaporation tank 10, the middle part of the side wall of the evaporation tank 10 is communicated with the first conveying pipe 13, after the seawater in the evaporation tank 10 exceeds the water level line of the first conveying pipe 13, the redundant seawater flows to the seawater storage tank 1 through the first conveying pipe 13, when the seawater storage tank 1 is gradually filled with the seawater, the floating ball 19 floats upwards along the seawater water level line, the sliding rod 18 slides upwards along the through hole, so that the piston in the first one-way valve 14 is closed to stop water storage, at the moment, the first magnetic sheet is adsorbed on the second magnetic sheet, the photovoltaic-heat energy unit starts to work, the evaporated seawater in the evaporation tank 10 is heated and evaporated, the evaporated water vapor flows along the water outlet pipe, and the threaded pipe 6 of the water outlet pipe is wound on the water inlet pipe 5, the low-temperature seawater absorbs the heat of the water vapor in the threaded pipe 6, and the water vapor is condensed into fresh water and is conveyed to the fresh water storage tank 8.
The solar photovoltaic-thermoelectric system is utilized to convert solar energy into electric energy and heat energy, and the heat energy and the electric energy are respectively provided for the evaporation tank 10 and the water suction pump 4, so that additional combustion fuel is not needed, the energy is saved, and the green desalination of sea water is realized.
When the evaporation of the seawater in the evaporation tank 10 is completed, the surplus heat in the evaporation tank 10 flows to the heat conducting ring 15, the heat conducting ring 15 and the contraction spring 16 absorb heat, the contraction spring 16 absorbs heat and contracts to apply a pulling force to the piston in the second one-way valve 17, the piston in the second one-way valve 17 is opened, the seawater stored in the seawater storage tank 1 enters the evaporation tank 10 along the second conveying pipe 2 and the water inlet pipe 5, the continuous heating of the seawater in the evaporation tank 10 is avoided, the service life of the evaporation tank 10 is not influenced, when the evaporation tank 10 is gradually filled with the seawater, the heat in the evaporation tank 10 continues to heat the seawater, the heat conducting ring 15 is not heated, the contraction spring 16 recovers to an initial state, the piston of the second one-way valve 17 is closed, and the first one-way valve 14 is not opened because the first magnetic sheet is adsorbed on the second magnetic sheet after the water storage of the seawater storage tank 1 is completed, and the water vapor in the evaporation tank 10 cannot flow to the seawater storage tank 1 through the first conveying pipe 13.
When the first check valve 14 is closed by water pressure to stop storing seawater, the first check valve 14 can be opened by manually pushing down the slide bar 18 to separate the first magnetic sheet from the second magnetic sheet when the seawater needs to be stored again; the second check valve 17 is used for controlling the water supply of the evaporation tank 10 by utilizing the temperature difference, manual watching is not needed, and the control equipment is not needed to be additionally arranged, so that the sea water desalination can be independently carried out, the equipment use is reduced, the energy is saved, the influence of the offshore operation environment is avoided, the structure is simple, the volume is small, the evaporation tank is suitable for a small-sized mobile operation platform, and the use of a large-sized mobile operation platform can be met.
Example 2
The difference from the above embodiment is that the water pump 4 is provided with a normally closed power switch, the part of the slide bar 18 located outside the seawater storage tank 1 is connected with a normally closed contact of the normally closed power switch, the slide bar 18 can be linked with the normally closed power switch, and in the initial state, the normally closed contact on the slide bar 18 is connected with the normally closed power switch.
The specific implementation process is as follows:
when the seawater storage tank 1 needs to store water, a normally-closed contact on the slide bar 18 is connected with a normally-closed power switch, and a power supply is connected with the water pump 4 to work; when the seawater storage tank 1 finishes storing water, the floating ball 19 floats upwards to drive the sliding rod 18 to slide upwards, the first one-way valve 14 is closed, meanwhile, the normally closed contact on the sliding rod 18 is disconnected with the normally closed power switch, the water pump 4 stops working, the closing of the water pump 4 can be independently controlled without manual operation, and the water pump 4 can be closed in time through the linkage of the sliding rod 18 and the normally closed power switch, so that energy sources are effectively saved.
Example 3
The difference with the embodiment is that a U-shaped pipe 7 is arranged between the threaded pipe 6 of the water outlet pipe and the fresh water storage tank 8, and the U-shaped pipe 7 is placed in the sea water.
The specific implementation process is as follows:
the U-shaped pipe 7 is placed in the seawater, and the low temperature of the seawater is utilized to further condense the vapor and the fresh water in the water outlet pipe, so that the vapor can be fully condensed when entering the fresh water storage tank 8, the waste of the vapor is avoided, and the fresh water yield is improved.
Example 4
The difference with the above embodiment is that the water inlet end of the water pump 4 is rotatably connected with a circular ring, one side of the circular ring away from the water pump 4 is fixedly connected with a protective cover 3, and the protective cover 3 is elliptical.
The specific implementation process is as follows:
when the water pump 4 works, due to water flow impact, the circular ring and the protective cover 3 rotate, so that floating objects can move along with the diffused water flow direction, and the floating objects are prevented from entering the water pump 4.
Example 5
The difference from the above embodiment is that the inside of the shield 3 is bonded with a permeable membrane.
The specific implementation process is as follows:
the permeable membrane can carry out preliminary desalination to the sea water, improves sea water desalination treatment efficiency, and when protection casing 3 rotates, partial rivers rotate along with protection casing 3, rise along with the rivers water level of direction of rotation, and the potential energy increases, can intermittently increase the impact of sea water to the permeable membrane, avoids the permeable membrane jam.
Example 6
The difference from the above-described embodiment is that the solar photovoltaic-thermoelectric system includes a solar photovoltaic panel 11 and a heat storage device:
the solar photovoltaic panel 11 comprises a light splitting cover plate glass layer, a first EVE layer, a storage battery piece, a second EVE layer and a back plate which are sequentially attached, and the storage battery piece is electrically connected with the normally closed power switch;
the heat accumulation device comprises a heat collector, one end of the heat collector is positioned between the light splitting cover plate glass layer and the first EVE layer, the other end of the heat collector is communicated with a heat transfer tube 12, and one end, far away from the heat collector, of the heat transfer tube 12 is connected with a heating plate 20.
The specific implementation process is as follows:
according to the scheme, the light-splitting cover plate glass layer is used for decoupling photovoltaic and photo-thermal, a part of solar energy passes through the light-splitting cover plate glass layer and is subjected to photoelectric conversion with the first EVE layer, electric energy is stored in the storage battery, the rest solar energy is accumulated by the heat collector, the heat is transferred to the heating plate 20 through the heat transfer pipe 12 to heat the evaporation tank 10, the simultaneous conversion of photovoltaic-thermal energy and photovoltaic-electric energy is realized, and the utilization rate of solar energy is improved.
Example 7
The difference from the above embodiment is that the spectroscopic cover glass layer is concave, and the convex surface of the spectroscopic cover glass layer faces the first EVE layer.
The specific implementation process is as follows:
the concave light splitting cover plate glass layer can better accumulate heat and improve the utilization rate of solar energy.
Example 8
The difference from the above embodiment is that an insulation layer is provided outside the evaporation tank 10.
The specific implementation process is as follows:
the heat preservation layer can avoid heat loss in the evaporation tank 10 and influence the desalination efficiency, and meanwhile, the heat conduction ring 15 can also avoid the situation that the second one-way valve 17 is opened by mistake due to the fact that heat is absorbed by the heat conduction ring 15 when the evaporation tank 10 is filled with seawater.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing is merely an embodiment of the present application, and a specific structure and characteristics of common knowledge in the art, which are well known in the scheme, are not described herein, so that a person of ordinary skill in the art knows all the prior art in the application date or before the priority date, can know all the prior art in the field, and has the capability of applying the conventional experimental means before the date, and a person of ordinary skill in the art can complete and implement the present embodiment in combination with his own capability in the light of the present application, and some typical known structures or known methods should not be an obstacle for a person of ordinary skill in the art to implement the present application. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application, which does not affect the effect of the implementation of the present application and the utility of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (8)
1. Small-size mobile operation platform sea water desalination processing system, its characterized in that: comprising the following steps:
the evaporation device comprises an evaporation box for desalting seawater, wherein a plurality of heating plates are arranged in the evaporation box and are perpendicular to the bottom of the evaporation box;
the fresh water storage tank is used for storing fresh water after the sea water desalination treatment;
the water supply device comprises a water suction pump and a seawater storage tank:
the water pump is used for pumping seawater, the water outlet end of the water pump is communicated with the water inlet end of the evaporation tank through a water inlet pipe, the water outlet end of the evaporation tank is communicated with a water outlet pipe, the water outlet pipe comprises a straight pipe and a threaded pipe which are sequentially communicated, the threaded pipe is wound on the water inlet pipe, and the water outlet end of the threaded pipe is communicated with the fresh water storage tank;
the device comprises a seawater storage tank, a first conveying pipe, a first one-way valve, a through hole, a sliding rod, a floating ball, a first magnetic sheet, a second conveying pipe, a second one-way valve, a heat conducting ring, a shrinkage spring, a piston, a sealing ring and a closing state, wherein the first conveying pipe is communicated between the seawater storage tank and the middle part of the side wall of the evaporation tank;
the solar photovoltaic-thermoelectric system is used for converting solar energy into electric energy and heat energy and comprises a photovoltaic-heat energy unit and a photovoltaic-electric energy unit, wherein the photovoltaic-heat energy unit is used for providing heat energy for the evaporation device, and the photovoltaic-electric energy unit is used for providing electric energy for the water suction pump as a power source.
2. The small mobile work platform seawater desalination treatment system of claim 1, wherein: the water pump is provided with a normally-closed power switch, the part of the slide bar outside the seawater storage tank is connected with a normally-closed contact of the normally-closed power switch, the slide bar can be linked with the normally-closed power switch, and in an initial state, the normally-closed contact on the slide bar is connected with the normally-closed power switch.
3. The small mobile work platform seawater desalination treatment system of claim 1, wherein: a U-shaped pipe is arranged between the threaded pipe of the water outlet pipe and the fresh water storage tank, and the U-shaped pipe is placed in the sea water.
4. The small mobile work platform seawater desalination treatment system of claim 1, wherein: the water inlet end of the water pump is rotationally connected with a circular ring, one side of the circular ring away from the water pump is fixedly connected with a protective cover, and the protective cover is elliptical.
5. The small mobile work platform seawater desalination treatment system of claim 4, wherein: the inner side of the protective cover is adhered with a permeable membrane.
6. The small mobile work platform seawater desalination treatment system of claim 1, wherein: the solar photovoltaic-thermoelectric system comprises a solar photovoltaic panel and a heat storage device:
the solar photovoltaic panel comprises a light splitting type cover plate glass layer, a first EVE layer, a storage battery piece, a second EVE layer and a back plate which are sequentially attached, and the storage battery piece is electrically connected with the normally closed power switch;
the heat storage device comprises a heat collector, one end of the heat collector is positioned between the light splitting type cover plate glass layer and the first EVE layer, the other end of the heat collector is communicated with a heat transfer pipe, and one end of the heat transfer pipe, which is far away from the heat collector, is connected with a heating plate.
7. The small mobile work platform seawater desalination treatment system of claim 6, wherein: the light splitting cover plate glass layer is concave, and the convex surface of the light splitting cover plate glass layer faces the first EVE layer.
8. The small mobile work platform seawater desalination treatment system of claim 1, wherein: an insulating layer is arranged outside the evaporation tank.
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| CN116655037A (en) | 2023-08-29 |
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