CN107311377B - Double-stage solar seawater desalination device and desalination method - Google Patents
Double-stage solar seawater desalination device and desalination method Download PDFInfo
- Publication number
- CN107311377B CN107311377B CN201710699983.6A CN201710699983A CN107311377B CN 107311377 B CN107311377 B CN 107311377B CN 201710699983 A CN201710699983 A CN 201710699983A CN 107311377 B CN107311377 B CN 107311377B
- Authority
- CN
- China
- Prior art keywords
- water
- water tank
- condenser
- electromagnetic valve
- solar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
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
- C02F1/44—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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/003—Downstream control, i.e. outlet monitoring, e.g. to check the treating agents, such as halogens or ozone, leaving the process
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)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a two-stage solar seawater desalination device which comprises a primary water tank, wherein the primary water tank is connected with a condenser through a first electromagnetic valve, the condenser is connected with a photo-thermal water tank through a second electromagnetic valve, the photo-thermal water tank is connected with a photoelectric water tank through a first water pump, the photoelectric water tank is connected with the condenser through a second water pump, the condenser is connected with a fresh water cabinet, and the fresh water cabinet is connected with the photoelectric water tank through a third water pump; a heater is arranged below the photoelectric water tank, and the first electromagnetic valve, the second electromagnetic valve, the first water pump, the second water pump, the third water pump and the heater are connected with a controller; the controller, the first electromagnetic valve, the second electromagnetic valve, the first water pump, the second water pump, the third water pump, the heater and the ultraviolet lamp are connected with the solar power generation mechanism; the photo-thermal water tank is also connected with the solar heat collecting pipe. The invention also provides a double-stage solar seawater desalination method. The invention can reduce energy consumption and provide high-quality fresh water.
Description
Technical Field
The invention belongs to the technical field of green new energy utilization, and particularly relates to a double-stage solar seawater desalination device and a desalination method.
Background
On an island and a lifesaving device with deficient fresh water resources, the source of fresh water mainly depends on two modes of rainwater collection and seawater desalination. Due to uncertainty of time and water amount, fresh water collected by rainwater is difficult to ensure daily needs of residents. Although the seawater desalination can increase fresh water resources according to the demand, the energy consumption is large (because the island is mostly generated by traditional energy (coal and petroleum) and the seawater desalination consumes large electric energy, so the traditional energy (coal and petroleum) is large in consumption). In addition, the desalination effect of the existing seawater desalination device is not ideal, and the fresh water quality is not high. Therefore, there is a need for a seawater desalination apparatus and method that can reduce energy consumption and provide high-quality fresh water.
Disclosure of Invention
The invention aims to provide a double-stage solar seawater desalination device and a desalination method, which can reduce energy consumption and provide high-quality fresh water.
The technical scheme adopted by the invention is as follows:
a two-stage solar seawater desalination device comprises a primary water tank, a condenser, a photo-thermal water tank, a photoelectric water tank, a fresh water cabinet, a solar power generation mechanism and a controller, wherein the primary water tank is connected with the condenser through a first electromagnetic valve, the condenser is connected with the photo-thermal water tank through a second electromagnetic valve, the photo-thermal water tank is connected with the photoelectric water tank through a first water pump, the photoelectric water tank is connected with the condenser through a second water pump, the condenser is connected with the fresh water cabinet, and the fresh water cabinet is connected with the photoelectric water tank through a third water pump; a heater is arranged below the photoelectric water tank, and the first electromagnetic valve, the second electromagnetic valve, the first water pump, the second water pump, the third water pump and the heater are connected with a controller;
the photo-thermal water tank is also connected with the solar heat collecting pipe;
a first water level sensor is arranged in the primary water tank, a first temperature sensor and a second water level sensor are arranged in the photo-thermal water tank, a second temperature sensor and a third water level sensor are arranged in the photoelectric water tank, and an ultraviolet lamp and a salinity meter are arranged in the fresh water cabinet; the first water level sensor, the first temperature sensor, the second water level sensor, the second temperature sensor, the third water level sensor and the salinity meter are connected with the controller;
the controller, the first electromagnetic valve, the second electromagnetic valve, the first water pump, the second water pump, the third water pump, the heater and the ultraviolet lamp are connected with the solar power generation mechanism.
According to the scheme, the solar power generation mechanism comprises a solar photovoltaic array, a solar charging and discharging controller and a storage battery which are connected in sequence; the solar charging and discharging controller is connected with the controller, the first electromagnetic valve, the second electromagnetic valve, the first water pump, the second water pump, the third water pump, the heater and the ultraviolet lamp. The electric energy generated by the solar photovoltaic array is stored in the storage battery. When the electric energy output by the solar photovoltaic array is sufficient, the solar photovoltaic array directly supplies power to the heater, and when the electric energy is insufficient, the solar photovoltaic array supplies power to the heater through the storage battery; the mode does not need to consume other energy sources, and is energy-saving and environment-friendly.
According to the scheme, the solar power generation mechanism is connected with the first water level sensor, the first temperature sensor, the second water level sensor, the second temperature sensor, the third water level sensor and the salinity meter, the solar power generation mechanism supplies power for the first water level sensor, the first temperature sensor, the second water level sensor, the second temperature sensor, the third water level sensor and the salinity meter, other energy sources are not required to be consumed, and the solar power generation mechanism is energy-saving and environment-friendly.
According to above-mentioned scheme, be equipped with the pellicle in the primary water tank, the sea water that gets into the primary water tank flows into the condenser again after the pellicle filters to ensure the stability and the life of whole device, improve fresh water quality of water.
According to the scheme, the primary water tank is provided with the display, and the display is connected with the controller so as to facilitate real-time monitoring. The controller is also connected with the alarm so as to find problems in time and ensure the normal use of the whole equipment.
According to the scheme, the angles of the solar photovoltaic array and the solar heat collecting pipe are adjusted according to the solar radiation intensity, so that the highest solar utilization efficiency is obtained.
According to the scheme, a natural convection mode is adopted between the solar heat collection pipe and the photo-thermal water tank, a water pump is not used for water circulation, and photovoltaic electric energy is saved.
According to the scheme, the rotary capillary condenser pipe is arranged in the condenser, and the sponge is arranged in the capillary condenser pipe to prevent water vapor from directly seeping out. The vapor entering the capillary condenser is cooled and condensed into fresh water by the seawater outside the pipe, the heat absorption temperature of the seawater is increased to primarily heat the seawater, and the recycling of heat energy is realized.
According to the scheme, the first water pump, the second water pump and the third water pump are small centrifugal pumps. The heater is located the lower extreme of photoelectricity water tank, and the outer wall adopts ceramic material thermal-insulated, heats under photoelectricity water tank, can prevent that high concentration sea water from corroding the heater.
According to the scheme, a flow sensor is arranged on a pipeline between the photoelectric water tank and the second water pump.
According to the scheme, the installation height is as follows: the primary water tank is greater than the condenser and is greater than the photo-thermal water tank, namely the photoelectric water tank and is greater than the fresh water cabinet. The structure can ensure that the seawater can flow only by gravity without external force. When the primary heating cannot be carried out in severe weather, the seawater filtered by the primary water tank can directly enter the photoelectric water tank. The photo-thermal water tank has good heat preservation performance.
According to above-mentioned scheme, the controller includes arduino mega2560 circuit, temperature measurement circuit, water level measurement circuit, flow measurement circuit, motor control circuit, salinity test circuit, display circuit, arduino mega2560 circuit is connected with temperature measurement circuit, water level measurement circuit, flow measurement circuit, motor control circuit, salinity test circuit, display circuit.
The singlechip of the arduino mega2560 circuit is powered by 5V voltage. The heater was powered by 12V. The first temperature sensor and the second temperature sensor are LM35 temperature sensors, the external voltage of the first temperature sensor and the second temperature sensor is 5V, and the data output ports of the 2 temperature sensors are connected with the analog ports A0 and A1 of the single chip microcomputer in a one-to-one correspondence mode. The external voltage of the first water level sensor, the second water level sensor and the third water level sensor is 5V, and the data output ports of the three water level sensors are connected with the analog ports A2, A3 and A7 of the single chip microcomputer in a one-to-one correspondence mode. The external voltage of the salinity sensor of the salinity meter is 5V, and the data output port of the salinity sensor is connected with the digital port 53 of the single chip microcomputer. The external voltage of the flow sensor is 5V, and the data output port of the flow sensor is connected with the digital port 52 of the single chip microcomputer. The external voltage of the first electromagnetic valve and the second electromagnetic valve is 5V, and the first electromagnetic valve and the second electromagnetic valve are correspondingly connected with the digital ports 9 and 10 of the single chip microcomputer. The first water pump, the second water pump and the third water pump are powered by 12V voltage, the first water pump, the second water pump and the third water pump are connected with the three relays in a one-to-one correspondence mode, and normally closed ports of the three relays are connected with digital ports 11, 12 and 13 of the single chip microcomputer in a one-to-one correspondence mode. The display is powered by the singlechip and displays the measurement data of each sensor.
The invention also provides a method for desalinating seawater by adopting the double-stage solar seawater desalination device, which comprises the following steps:
1) after seawater enters the primary water tank, large-particle insoluble substances are filtered out through a semipermeable membrane, when the water level reaches a preset height, the first electromagnetic valve and the second electromagnetic valve are automatically opened, the seawater enters the condenser and then flows into the hot water tank; when the water level of the photo-thermal water tank and the water level in the condenser reach preset water levels, the first electromagnetic valve and the second electromagnetic valve are closed, and the seawater addition is stopped;
2) the solar heat collecting pipe primarily heats seawater in the hot water tank, generated saturated vapor enters the condenser through a pipeline and then flows into the fresh water cabinet, and an ultraviolet lamp in the fresh water cabinet is turned on; when the temperature of the photo-thermal water tank reaches a set temperature, the first water pump is started, and seawater enters the photoelectric water tank; when the water level of the photo-thermal water tank is lower than the set water level, the first water pump is turned off;
3) when the concentration of the water vapor in the photoelectric water tank is too low and the temperature reaches the boiling temperature of the seawater, starting a second water pump, pumping saturated water vapor generated by the photoelectric water tank into a condenser, and enabling fresh water flowing out of the condenser to flow into a fresh water cabinet;
4) the salinity meter in the fresh water cabinet tests the fresh water in the fresh water cabinet; when the test is qualified, the fresh water in the fresh water cabinet flows into the water storage tank for standby; when the test is unqualified, the third water pump is started, the fresh water in the fresh water cabinet enters the photoelectric water tank again for heating, and the display displays alarm information;
5) repeating the step 3) and the step 4) until the fresh water in the fresh water cabinet is qualified;
6) and repeating the steps 1) to 5) to continuously prepare the fresh water.
The principle is as follows: the solar heat collecting pipe is used for heating seawater for the first time, part of water vapor is generated by the first heating, and the heated residual seawater enters the photoelectric water tank; the solar power generation mechanism supplies power to the electric heating pipe, the electric heater heats water in the photoelectric water tank to vaporize the water, water vapor generated by first heating and water vapor generated by second heating both enter the condenser to exchange heat with low-temperature seawater, the water vapor in the condenser is condensed to obtain fresh water, the heat-absorbed seawater enters the light and heat water tank, and water in the light and heat water tank is heated by the solar heat collecting pipe.
The invention has the beneficial effects that:
the solar heat collecting pipe is adopted to heat the seawater for the first time, the heater is adopted to heat the seawater for the second time, saturated vapor generated by two-stage heating is cooled into liquid state by the low-temperature seawater in the condenser and then is led into the fresh water cabinet, and fresh water can be effectively collected;
the controller is adopted, so that the fresh water can be automatically collected, and the operation is very convenient;
the solar energy is adopted for power supply, other electric energy is not needed, and the energy is saved and the environment is protected;
the solar energy is comprehensively utilized, the efficiency is high, and the solar energy can be continuously operated;
the seawater desalination device can be repeatedly utilized, and the seawater desalination cost is saved;
simple structure, the installation is dismantled conveniently, and equipment construction, use, maintenance cost are low, and is clean pollution-free, and the photovoltaic utilization ratio is high.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic flow diagram of a two-stage solar desalination process;
FIG. 2 is a schematic structural diagram of a two-stage solar seawater desalination plant;
FIG. 3 is a schematic structural view of a solar power generation mechanism;
FIG. 4 is a schematic structural view of a condenser;
fig. 5 is a connection circuit diagram (one) of the single chip microcomputer and each component in the controller, which mainly comprises: the arduinomega2560 singlechip is connected with a circuit diagram part which is connected with temperature sensors (2), water level sensors (3), salinity and temperature sensors (1), flow sensors (1) and electric heater relays (1);
fig. 6 is a circuit diagram (ii) of the connection between the single chip and each component in the controller, which mainly includes: the arduinomega2560 singlechip is connected with the circuit diagram part of the electromagnetic valves (2), the circulating water pumps (3) and the display circuit (1).
Wherein: 1. the primary water tank, 2, a display screen, 3, a semipermeable membrane, 4, a first electromagnetic valve, 5, a condenser, 5.1, a capillary condenser pipe, 5.2, sponge, 6, a second water pump, 7, a second electromagnetic valve, 8, a photo-thermal water tank, 9, a first temperature sensor, 10, a second water level sensor, 11, a solar heat collecting pipe, 12, a first water pump, 13, a photoelectric water tank, 14, a second temperature sensor, 15, a third water level sensor, 16, a fresh water cabinet, 17, an ultraviolet lamp, 18, a salinity meter, 19, a solar photovoltaic array, 20, a solar charge-discharge controller, 21, a storage battery, 22, a first water level sensor, 23, a heater, 24, a flow sensor, 25 and a third water pump.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 2 to 6, a two-stage solar seawater desalination plant comprises a primary water tank 1, a condenser 5, a photo-thermal water tank 8, a photoelectric water tank 13, a fresh water tank 16, a solar power generation mechanism and a controller. The primary water tank 1 is connected with a condenser 5 through a first electromagnetic valve 4, the condenser 5 is connected with a photo-thermal water tank 8 through a second electromagnetic valve 7, the photo-thermal water tank 8 is connected with a photoelectric water tank 13 through a first water pump 12, the photoelectric water tank 13 is connected with the condenser 5 through a second water pump 6, the condenser 5 is connected with a fresh water cabinet 16, and the fresh water cabinet 16 is connected with the photoelectric water tank 13 through a third water pump 25; a heater 23 is arranged below the photoelectric water tank 13. A first water level sensor 22 is arranged in the primary water tank 1, a first temperature sensor 9 and a second water level sensor 10 are arranged in the photo-thermal water tank 8, a second temperature sensor 14 and a third water level sensor 15 are arranged in the photoelectric water tank 13, and an ultraviolet lamp 17 and a salinity meter 18 are arranged in the fresh water cabinet 16; the first electromagnetic valve 4, the second electromagnetic valve 7, the first water pump 12, the second water pump 6, the third water pump 25, the heater 23, the first water level sensor 22, the first temperature sensor 9, the second water level sensor 10, the second temperature sensor 14, the third water level sensor 15 and the salinity meter 18 are connected with the controller.
The photo-thermal water tank 8 is also connected with the solar heat collecting tube 11, and a natural convection mode is adopted between the solar heat collecting tube and the photo-thermal water tank to heat the seawater in the photo-thermal water tank 8. A flow sensor 24 is arranged on a pipeline between the photoelectric water tank 13 and the second water pump 6.
In the invention, the solar power generation mechanism comprises a solar photovoltaic array 19, a solar charge and discharge controller 20 and a storage battery 21 which are connected in sequence; the angles of the solar photovoltaic array 19 and the solar heat collecting pipe 11 can be adjusted according to the solar radiation intensity to obtain the highest solar energy utilization efficiency. The solar charging and discharging controller 20 is connected with the controller, the first electromagnetic valve 4, the second electromagnetic valve 7, the first water pump 12, the second water pump 6, the third water pump 25, the heater 23, the ultraviolet lamp 17, the first water level sensor 22, the first temperature sensor 9, the second water level sensor 10, the second temperature sensor 14, the third water level sensor 15, the flow sensor 24 and the salinity meter 18. When the electric energy output by the solar photovoltaic array 19 is sufficient, the electric energy is directly supplied to the electric equipment, and when the electric energy is insufficient, the electric energy is supplied by the storage battery; the mode does not need to consume other energy sources, and is energy-saving and environment-friendly.
According to the invention, the semipermeable membrane 3 is arranged in the primary water tank 1, and seawater entering the primary water tank 1 is filtered by the semipermeable membrane 3 and then flows into the condenser 5, so that the stability and the service life of the whole device are ensured, and the quality of fresh water is improved. The primary water tank 1 is provided with a display 2, the display 2 is connected with the controller, and the data collected by the first water level sensor 22, the first temperature sensor 9, the second water level sensor 10, the second temperature sensor 14, the third water level sensor 15, the salinity meter 18 and the flow sensor 24 are displayed in real time.
In the invention, a rotary capillary condenser tube 5.1 is arranged in the condenser 5, and a sponge 5.2 is arranged in the capillary condenser tube 5.1 to prevent water vapor from directly seeping out. The vapor entering the capillary condenser 5.1 is cooled and condensed into fresh water by seawater outside the pipe, the heat absorption temperature of the seawater is raised to carry out primary heating, and the recycling of heat energy is realized.
In the invention, for better energy conservation and emission reduction, the installation height of the primary water tank 1 is more than the installation height of the condenser 5 and more than the installation height of the photo-thermal water tank 8, namely the installation height of the photoelectric water tank 13 and more than the installation height of the fresh water tank 16.
Referring to fig. 5, the controller includes arduino mega2560 circuit, temperature measuring circuit, water level measuring circuit, flow measuring circuit, motor control circuit, salinity test circuit, display circuit, arduino mega2560 circuit is connected with temperature measuring circuit, water level measuring circuit, flow measuring circuit, motor control circuit, salinity test circuit, display circuit. The singlechip of the arduino mega2560 circuit is powered by 5V voltage. The heater was powered by 12V. The first temperature sensor and the second temperature sensor are LM35 temperature sensors, the external voltage of the first temperature sensor is 5V, the data output port of the first temperature sensor is connected with the single chip microcomputer simulation port A0, and the data output port of the second temperature sensor is connected with the single chip microcomputer simulation port A1. The external voltage of the first water level sensor, the second water level sensor and the third water level sensor is 5V, the data output port of the first water level sensor is connected with the analog port A2 of the single chip microcomputer, the data output port of the second water level sensor is connected with the analog port A3 of the single chip microcomputer, and the data output port of the third water level sensor is connected with the analog port A7 of the single chip microcomputer. The external voltage of the salinity sensor of the salinity meter is 5V, and the data output port of the salinity sensor is connected with the digital port 53 of the single chip microcomputer. The external voltage of the flow sensor is 5V, and the data output port of the flow sensor is connected with the digital port 52 of the single chip microcomputer. The external voltage of the first electromagnetic valve and the second electromagnetic valve is 5V, the first electromagnetic valve is connected with the digital port 9 of the single chip microcomputer, and the second electromagnetic valve is connected with the digital port 10 of the single chip microcomputer in a one-to-one correspondence mode. The first water pump, the second water pump and the third water pump are powered by 12V voltage, the first water pump is connected with the first relay, the second water pump is connected with the second relay, the third water pump is connected with the third relay, a normally closed port of the first relay is connected with an 11 digital port of the single chip microcomputer, a normally closed port of the second relay is connected with a 12 digital port of the single chip microcomputer, and a normally closed port of the third relay is connected with a 13 digital port of the single chip microcomputer. The display is powered by the singlechip and displays the measurement data of each sensor.
Referring to fig. 1, a method for desalinating seawater by using the above-mentioned two-stage solar seawater desalination apparatus includes the following steps:
1) after seawater enters the primary water tank, large-particle insoluble substances are filtered out through a semipermeable membrane, when the water level reaches a preset height, the first electromagnetic valve and the second electromagnetic valve are automatically opened, the seawater enters the condenser and then flows into the hot water tank; when the water level of the photo-thermal water tank and the water level in the condenser reach preset water levels, the first electromagnetic valve and the second electromagnetic valve are closed, and the seawater addition is stopped;
2) the solar heat collecting pipe primarily heats seawater in the hot water tank, generated saturated vapor enters the condenser through a pipeline and then flows into the fresh water cabinet, and an ultraviolet lamp in the fresh water cabinet is turned on; when the temperature of the photo-thermal water tank reaches a set temperature, the first water pump is started, and seawater enters the photoelectric water tank; when the water level of the photo-thermal water tank is lower than the set water level, the first water pump is turned off;
3) when the concentration of the water vapor in the photoelectric water tank is too low and the temperature reaches the boiling temperature of the seawater, starting a second water pump, pumping saturated water vapor generated by the photoelectric water tank into a condenser, and enabling fresh water flowing out of the condenser to flow into a fresh water cabinet;
4) the salinity meter in the fresh water cabinet tests the fresh water in the fresh water cabinet; when the test is qualified, the fresh water in the fresh water cabinet flows into the water storage tank for standby; when the test is unqualified, the third water pump is started, the fresh water in the fresh water cabinet enters the photoelectric water tank again for heating, and the display displays alarm information;
5) repeating the step 3) and the step 4) until the fresh water in the fresh water cabinet is qualified;
6) and repeating the steps 1) to 5) to continuously prepare the fresh water.
In the invention, when the temperature of the photo-thermal water tank rises abnormally, the No. 1 water pump is directly started, and seawater directly flows into the photo-thermal water tank.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (5)
1. The utility model provides a two-stage formula solar energy sea water desalination device which characterized in that: the solar energy fresh water supply system comprises a primary water tank, a condenser, a photo-thermal water tank, a photoelectric water tank, a fresh water cabinet, a solar power generation mechanism and a controller, wherein the primary water tank is connected with the condenser through a first electromagnetic valve, the condenser is connected with the photo-thermal water tank through a second electromagnetic valve, the photo-thermal water tank is connected with the photoelectric water tank through a first water pump, the photoelectric water tank is connected with the condenser through a second water pump, the condenser is connected with the fresh water cabinet, and the fresh water cabinet is connected with the photoelectric water tank through a third water pump; a heater is arranged below the photoelectric water tank, and the first electromagnetic valve, the second electromagnetic valve, the first water pump, the second water pump, the third water pump and the heater are connected with a controller;
the photo-thermal water tank is also connected with the solar heat collecting pipe;
a first water level sensor is arranged in the primary water tank, a first temperature sensor and a second water level sensor are arranged in the photo-thermal water tank, a second temperature sensor and a third water level sensor are arranged in the photoelectric water tank, and an ultraviolet lamp and a salinity meter are arranged in the fresh water cabinet; the first water level sensor, the first temperature sensor, the second water level sensor, the second temperature sensor, the third water level sensor and the salinity meter are connected with the controller;
the controller, the first electromagnetic valve, the second electromagnetic valve, the first water pump, the second water pump, the third water pump, the heater and the ultraviolet lamp are connected with the solar power generation mechanism;
a semipermeable membrane is arranged in the primary water tank, and seawater entering the primary water tank flows into the condenser after being filtered by the semipermeable membrane;
a rotary capillary condenser pipe is arranged in the condenser, and sponge is arranged in the capillary condenser pipe to prevent water vapor from directly seeping out;
according to the radiation intensity of the solar energy, the angles of the solar photovoltaic array and the solar heat collecting pipe are adjusted to obtain the highest efficiency.
2. The two-stage solar seawater desalination plant of claim 1, wherein: the solar power generation mechanism comprises a solar photovoltaic array, a solar charge-discharge controller and a storage battery which are connected in sequence; the solar charging and discharging controller is connected with the controller, the first electromagnetic valve, the second electromagnetic valve, the first water pump, the second water pump, the third water pump, the heater and the ultraviolet lamp.
3. The two-stage solar seawater desalination plant of claim 1, wherein: the solar power generation mechanism is connected with the first water level sensor, the first temperature sensor, the second water level sensor, the second temperature sensor, the third water level sensor and the salinity meter.
4. The two-stage solar seawater desalination plant of claim 1, wherein: and a display is arranged on the primary water tank and is connected with the controller.
5. A method for desalinating seawater by using the two-stage solar seawater desalination plant according to any one of claims 1 to 4, comprising the steps of:
1) after seawater enters the primary water tank, large-particle insoluble substances are filtered out through a semipermeable membrane, when the water level reaches a preset height, a first electromagnetic valve and a second electromagnetic valve are opened, the seawater enters a condenser and then flows into a hot water tank; when the water level of the photo-thermal water tank and the water level in the condenser reach preset water levels, the first electromagnetic valve and the second electromagnetic valve are closed, and the seawater addition is stopped;
2) the solar heat collecting pipe primarily heats seawater in the hot water tank, evaporated water flows into the fresh water tank after passing through the condenser, and an ultraviolet lamp in the fresh water tank is turned on; when the temperature of the photo-thermal water tank reaches a set temperature, the first water pump is started, and seawater enters the photoelectric water tank; when the water level of the photo-thermal water tank is lower than the set water level, the first water pump is turned off;
3) the seawater entering the photoelectric water tank is heated by the heater, when the concentration of the water vapor in the photoelectric water tank is too low and the temperature reaches the boiling temperature of the seawater, the second water pump is started to pump the water vapor in the photoelectric water tank into the condenser, and the fresh water flowing out of the condenser flows into the fresh water cabinet again;
4) the salinity meter in the fresh water cabinet tests the fresh water in the fresh water cabinet; when the test is qualified, the fresh water in the fresh water cabinet flows into the water storage tank for standby; when the test is unqualified, the third water pump is started, and the fresh water in the fresh water cabinet enters the photoelectric water tank again for heating;
5) and repeating the step 3) and the step 4) until the fresh water in the fresh water cabinet is qualified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710699983.6A CN107311377B (en) | 2017-08-16 | 2017-08-16 | Double-stage solar seawater desalination device and desalination method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710699983.6A CN107311377B (en) | 2017-08-16 | 2017-08-16 | Double-stage solar seawater desalination device and desalination method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107311377A CN107311377A (en) | 2017-11-03 |
| CN107311377B true CN107311377B (en) | 2020-02-18 |
Family
ID=60177264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710699983.6A Active CN107311377B (en) | 2017-08-16 | 2017-08-16 | Double-stage solar seawater desalination device and desalination method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107311377B (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107743795A (en) * | 2017-11-15 | 2018-03-02 | 宋宏婷 | A kind of seawater planting salt production greenhouse control system |
| CN107885262A (en) * | 2017-11-15 | 2018-04-06 | 宋宏婷 | A kind of warmhouse booth control system and method with seawater planting vegetables |
| CN107691035A (en) * | 2017-11-15 | 2018-02-16 | 宋宏婷 | A kind of vinyl house control system with seawater planting |
| CN107743794A (en) * | 2017-11-15 | 2018-03-02 | 宋宏婷 | A kind of control system of intelligent greenhouse with seawater planting |
| CN107691036A (en) * | 2017-11-15 | 2018-02-16 | 宋宏婷 | A kind of greenhouse control system and method with seawater planting crops |
| CN107750765A (en) * | 2017-11-15 | 2018-03-06 | 宋宏婷 | A kind of warmhouse booth with seawater planting vegetables |
| CN107758695A (en) * | 2017-11-15 | 2018-03-06 | 宋宏婷 | A kind of seawater planting salt production greenhouse |
| CN107750751A (en) * | 2017-11-15 | 2018-03-06 | 宋宏婷 | A kind of greenhouse with seawater planting crops |
| CN107820939A (en) * | 2017-11-15 | 2018-03-23 | 宋宏婷 | A kind of seawater planting salt production greenhouse control system and method |
| CN107750754A (en) * | 2017-11-15 | 2018-03-06 | 宋宏婷 | A kind of warmhouse booth control system with seawater planting |
| CN107736163A (en) * | 2017-11-15 | 2018-02-27 | 宋宏婷 | A kind of warmhouse booth with seawater planting |
| CN107711193A (en) * | 2017-11-15 | 2018-02-23 | 宋宏婷 | The control system and method for a kind of intelligent greenhouse with seawater planting |
| CN107711192A (en) * | 2017-11-15 | 2018-02-23 | 宋宏婷 | A kind of warmhouse booth control system and method with seawater planting |
| CN107820938A (en) * | 2017-11-15 | 2018-03-23 | 宋宏婷 | A kind of warmhouse booth control system with seawater planting vegetables |
| CN107750753A (en) * | 2017-11-15 | 2018-03-06 | 宋宏婷 | A kind of control system for the warmhouse booth planted with seawater |
| CN107750752A (en) * | 2017-11-15 | 2018-03-06 | 宋宏婷 | A kind of greenhouse control system with seawater planting crops |
| CN107711191A (en) * | 2017-11-15 | 2018-02-23 | 宋宏婷 | A kind of vinyl house with seawater planting |
| CN107801531A (en) * | 2017-11-15 | 2018-03-16 | 宋宏婷 | A kind of vinyl house control system and method with seawater planting |
| CN107743797A (en) * | 2017-11-15 | 2018-03-02 | 宋宏婷 | A kind of warmhouse booth planted with seawater |
| CN107743796A (en) * | 2017-11-15 | 2018-03-02 | 宋宏婷 | A kind of intelligent greenhouse with seawater planting |
| CN107966924A (en) * | 2017-11-15 | 2018-04-27 | 宋宏婷 | A kind of control system and method for the greenhouse planted with seawater |
| CN110272161A (en) * | 2019-07-31 | 2019-09-24 | 江西科技师范大学 | Bar shaped mirror surface collection thermoelectric energizes microwave heating desalination plant and desalination method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102190340A (en) * | 2010-03-02 | 2011-09-21 | 孙元新 | Multistage double effect distillation seawater desalination technology with heating seawater by solar energy |
| CN103130291A (en) * | 2013-01-31 | 2013-06-05 | 武汉理工大学 | Solar sea water desalination device applied to lifeboats |
| CN105700405A (en) * | 2016-04-11 | 2016-06-22 | 集美大学 | Full automatic control device and control method for wind-light complementary type seawater desalination system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20170189830A1 (en) * | 2016-01-06 | 2017-07-06 | John Markham Cody | System for desalinating saltwater |
-
2017
- 2017-08-16 CN CN201710699983.6A patent/CN107311377B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102190340A (en) * | 2010-03-02 | 2011-09-21 | 孙元新 | Multistage double effect distillation seawater desalination technology with heating seawater by solar energy |
| CN103130291A (en) * | 2013-01-31 | 2013-06-05 | 武汉理工大学 | Solar sea water desalination device applied to lifeboats |
| CN105700405A (en) * | 2016-04-11 | 2016-06-22 | 集美大学 | Full automatic control device and control method for wind-light complementary type seawater desalination system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107311377A (en) | 2017-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107311377B (en) | Double-stage solar seawater desalination device and desalination method | |
| CN101165432B (en) | Intelligentized light energy heat pump type cold-hot water energy-saving machine set and control method | |
| CN100410588C (en) | Water heating and heating system by comprehensive utilization of heat and electricity from solar energy and wind energy | |
| CN109059313B (en) | High-efficiency solar heat collection combined electric energy heating system | |
| CN106352387A (en) | Hybrid energy heating and refrigerating system | |
| CN209619470U (en) | A kind of water electrolysis hydrogen producing cooling-cycle apparatus | |
| CN203744198U (en) | Solar steam device | |
| CN201926135U (en) | Hot water supply system adopting solar energy as primary heat source | |
| CN108361999A (en) | The system that solar energy heating combination photovoltaic generation auxiliary air source heat pump obtains hot water | |
| CN201731641U (en) | Solar and air energy integrated thermal utilization system | |
| Soltani et al. | Design, fabrication and performance assessment of a novel portable solar-based poly-generation system | |
| CN203671913U (en) | Super energy-saving mode of air source heat pump water heater | |
| CN203687175U (en) | Solar energy and wind power comprehensive utilization water supply and air-conditioning energy saving system for high-rise buildings | |
| CN201795283U (en) | Solar high-temperature heat pump heating device for oil gathering and transportation | |
| CN108224537A (en) | Wind-solar complementary type intelligent heat supply electric power system | |
| CN204616798U (en) | Solar energy tortoise survives the winter culturing pool | |
| CN204187828U (en) | A kind of photovoltaic heat pump water heater | |
| CN202614544U (en) | Household solar energy hot water system energy efficiency testing device | |
| CN203413712U (en) | Multi-energy water heater for preparing life hot water in large-scale public building | |
| CN108954824A (en) | A kind of energy-saving type air energy heat pump | |
| CN204534772U (en) | A kind of geothermal heating system | |
| CN208920602U (en) | A kind of energy-saving type air energy heat pump | |
| CN208253975U (en) | The system of solar energy heating combination photovoltaic power generation auxiliary air source heat pump acquisition hot water | |
| CN207850120U (en) | A kind of cooling tower for central air-conditioning of intelligent frequency-conversion | |
| CN208025609U (en) | A kind of wind-powered electricity generation heat supply and electric boiler and machine heating plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |