CN110272161A - Bar shaped mirror surface collection thermoelectric energizes microwave heating desalination plant and desalination method - Google Patents

Abstract

The present disclosure proposes bar shaped mirror surface collection thermoelectric energy supply microwave heating desalination plant and desalination method, power supply device, control device, microwave heating steam and pressure stabilizing energy storage device, steam drive seawater boost device, reverse osmosis seawater desalting and pressure energy recyclable devices；Using fixed bar shaped mirror surface condensation photovoltaic/photo-thermal alliance, photovoltaic power generation passes through inverter, transformer and controller, microwave generator and microwave heating chamber are to superheated steam reheating, strengthen and stablize high temperature steam pressure, enter reverse osmosis desalination device after directly driving pressurization using piston in multiple groups gas-liquid combination cylinder, discharge steam waste heat utilizes heat pipe, driving humidification dehumidification sea water desalination, condensate water circulatory forms closed type circulator to solar concentrating collector.

Description

Microwave heating seawater desalination device and method

technical field

The present disclosure relates to the technical field of new energy utilization, in particular to a strip-shaped mirror concentrating thermoelectric power supply microwave heating seawater desalination device and desalination method.

Background technique

With the rapid development of today's society, the demand for energy and fresh water in industry, agriculture and civil life is increasing. The situation of energy structure is becoming more and more serious, facing unprecedented challenges, climate change is becoming more and more obvious, environmental pollution and water pollution are becoming more and more serious, energy conservation and emission reduction are urgently needed, and there is an urgent need to develop new energy and more fresh water resources. The use and promotion of sustainable energy is a necessary way to solve the problems of increasing energy consumption demand, irrational energy consumption structure, and the energy pressure and environmental pollution problems that we are currently facing. And the long development period has become the largest energy source available for development. The solar concentrated photovoltaic/photothermal integrated system can effectively use the waste heat of the system while obtaining electricity from the solar energy, which improves the comprehensive utilization efficiency of the solar energy of the system and saves land use resources. In addition, the rapidity, uniformity, stability and controllability of microwave heating can effectively improve the performance of the system, and effectively improve the adaptability and application value of the system.

The recovery of energy, water and salt in the seawater desalination process, the enhancement of heat and mass transfer process, the scaling characteristics of components, the improvement of energy utilization efficiency and water production rate are the focus of research, and the solar energy conversion and utilization link is mainly medium and low temperature Solar collectors, combined with distillation, flash evaporation, pressure steam distillation and other processes and various heat and mass transfer processes.

my country's solar desalination field is generally lacking in systematization, and the research on the main technologies and processes is not deep enough, especially in the performance of some representative devices. There is a gap with the international level. The seawater desalination process based on solar thermal power supply and microwave heating coupling is still the focus of research. Many links such as energy recovery, salt recovery and water recovery need to be further optimized, and the manufacturing process needs to be further improved.

Contents of the invention

The purpose of the embodiment of this specification is to provide a bar-shaped mirror-surface concentrating thermoelectric energy-powered microwave heating seawater desalination device, to solve the problem of solar energy concentrating thermoelectric energy-powered microwave heating enhancement, to carry out the application of seawater (brackish water) desalination, and to reduce system production costs. Improve energy efficiency and system economy.

The implementation mode of this specification provides a strip-shaped mirror surface concentrating thermoelectric power supply microwave heating seawater desalination device, which is realized through the following technical solutions:

Including: energy supply device, control device, microwave heating steam and stable pressure energy storage device, steam-driven seawater pressurization device, reverse osmosis seawater desalination and pressure energy recovery device;

The energy supply device includes several strip mirrors and cogeneration absorbers, and the several strip mirrors reflect concentrated light to the cogeneration absorber for power generation and transmit the power generation to the control device;

The control device controls photovoltaic power generation and grid power supply to complement each other;

The microwave heating steam and the pressure-stabilizing energy storage device heat the superheated steam heated by the energy supply device to increase the temperature and pressure to enter the gas storage tank to stabilize the pressure and store energy. Osmotic pressure and transfer of steam to a steam-driven seawater pressurization unit;

When the steam drives the seawater supercharging device, when the steam reaches a certain pressure, the steam pushes the gas-driven liquid piston to compress the seawater, and the pressurized seawater enters the reverse osmosis seawater desalination and pressure energy recovery device to generate fresh water and concentrated brine and perform pressure energy recovery. Recycle.

A further technical solution also includes a heat pipe heat exchange steam condensing device and a humidification and dehumidification seawater desalination device. The heat pipe heat exchange steam condensing device condenses into water and enters the combined heat and power absorber to be concentrated and heated into steam again to realize circulation heating;

The humidifying and dehumidifying seawater desalination device rapidly evaporates and humidifies the seawater, and the wet steam is condensed into fresh water to be discharged; the discharged concentrated brine is preheated to the seawater through the waste heat recovery device.

In a further technical solution, the plurality of strip-shaped mirrors are placed side by side, and the cogeneration absorber is composed of two parts, with concentrating cells on both sides and a strip-shaped plate absorber in the middle.

In a further technical solution, the control device includes an inverter, a transformer, a controller, and a grid power switch; the electric energy obtained by the concentrator battery is boosted by the inverter and the transformer to reach microwave heating steam and a voltage-stabilizing energy storage device The rated voltage of the microwave generator is medium, and the controller adjusts and controls the photovoltaic power generation and the grid power supply to complement each other by controlling the grid power switch.

In a further technical solution, the microwave heating steam and pressure-stabilizing energy storage device includes a microwave heating chamber, a microwave generator, and a pressure-stabilizing gas storage tank. There are one-way pressure control valves at the front and back of the tank;

The microwave heating chamber heats and raises the temperature and pressure of the steam, enters the gas storage tank to stabilize the pressure and store energy, and adjusts the reverse osmosis pressure required for seawater with different salinities through the control valve.

In a further technical solution, the steam-driven seawater pressurization device includes a plurality of gas-driven liquid booster cylinders connected in sequence, and the upper part of the gas-driven liquid booster cylinder is provided with a one-way air inlet and outlet control valve, and the gas-driven liquid There is an air-driven liquid piston in the pressurized cylinder, and a one-way control valve for liquid inlet and outlet is installed at the lower part of the cylinder body of the air-driven liquid booster cylinder;

The microwave heating steam and the steam from the pressure stabilizing energy storage device enter the gas-displacement liquid booster cylinder, expand and do work to push the piston, and when the steam reaches a certain pressure, the steam pushes the gas-displacement liquid piston to compress seawater.

In a further technical solution, the heat pipe steam condensation device includes an evaporation humidification chamber and a steam condensation chamber, the evaporation humidification chamber and the steam condensation chamber are connected by a heat pipe heat exchanger, and a steam trap is arranged below the steam condensation chamber to control , the upper air inlet is connected with the outlet pipe of the gas-driven liquid pressurized cylinder, and connected with the one-way valve through the pipe; an ultrasonic atomizing nozzle is arranged above the evaporation humidification chamber, and the nozzle is connected with the condenser coil.

In a further technical solution, the humidification and dehumidification seawater desalination device includes a condensation dehumidification chamber and an evaporation humidification chamber connected to each other, the upper part of the condensation dehumidification chamber and the evaporation humidification chamber communicate with the lower part, and an axial flow fan is arranged below.

In a further technical solution, the reverse osmosis seawater desalination and pressure energy recovery device includes a reverse osmosis device and a pressure transducer; Brine and seawater are imported and exported, and each inlet and outlet pipe is provided with a one-way control valve.

The implementation mode of this specification provides a method for desalination of seawater heated by microwave heating with strip-shaped mirror surface concentrating heat and electricity, which is realized through the following technical solutions:

Several strip-shaped mirror reflectors reflect the concentrated light to the combined heat and power absorber for photovoltaic power generation;

Photovoltaic power generation reaches the operating voltage of microwave heating steam and voltage stabilizing energy storage device after inversion and boosting, and provides electric energy;

In the process of photovoltaic power generation, the thermal energy generated by the combined heat and power absorber heats the pure water into superheated steam;

The superheated steam heats up the steam through the microwave heating steam and the pressure-stabilizing energy storage device, and then enters the gas storage tank to stabilize the pressure and store energy, and adjust the reverse osmosis pressure suitable for seawater with different salinities through the control valve;

When the steam drives the steam in the seawater supercharging device to reach a certain pressure, the steam pushes the gas-driven liquid piston to compress the seawater, and the pressurized seawater enters the reverse osmosis seawater desalination and pressure energy recovery device to generate fresh water and concentrated brine and carry out pressure energy Recycle.

Compared with the prior art, the beneficial effects of the present disclosure are:

This disclosure adopts a fixed strip-shaped reflective mirror surface concentrating photovoltaic/photothermal cogeneration, and photovoltaic power generation passes through inverters, transformers and controllers, microwave generators and microwave heating chambers to reheat superheated steam to strengthen and stabilize medium and high temperature steam pressure , using multiple groups of gas-liquid combination cylinders to directly drive the piston to pressurize and then enter the reverse osmosis seawater desalination device, exhaust the waste heat of the steam and use the heat pipe heat exchange device to drive the humidification and dehumidification of the seawater desalination, and the condensed water is circulated to the solar collector to form Closed loop device.

The disclosure has the advantages of fixing the reflecting mirror surface, absorber tracking the sun's concentrated heat and microwave secondary heating steam, directly driving seawater for reverse osmosis seawater desalination, and reusing its latent heat for humidifying and dehumidifying seawater desalination.

The device of the present disclosure is convenient to manufacture, and the cost and operation are relatively stable. Especially in coastal areas with strong winds and brackish water areas, solar energy concentrating thermoelectric energy, microwave heating and high-temperature seawater desalination integrated utilization, fixed strip mirror reflectors are more efficient and rapid than other concentrating devices. And stable and effective controllability, the gas-driven liquid booster cylinder directly generates pressure to drive reverse osmosis seawater desalination, and the solar seawater desalination device that reuses latent heat has more advantages than other devices.

Description of drawings

The accompanying drawings constituting a part of the present disclosure are used to provide a further understanding of the present disclosure, and the exemplary embodiments and descriptions of the present disclosure are used to explain the present disclosure, and do not constitute improper limitations to the present disclosure.

Figure 1 is a structural diagram of a bar-shaped mirror concentrating thermoelectric power supply microwave heating seawater desalination system;

Among them: 1. Strip mirror reflector, 2. Cogeneration absorber, 3. Inverter, 4. Transformer, 5. Controller, 6. Microwave generator, 7. Microwave heating chamber, 8. Stable voltage storage Gas tank, 9. Pressure control valve, 10. Grid power switch, 11. Condensation and dehumidification chamber, 12. Evaporation and humidification chamber, 13. Ultrasonic atomizing nozzle, 14. Steam condensation chamber, 15. Heat pipe heat exchanger, 16. Pressure transducing device, 17. Gas-driven liquid booster cylinder, 18. Reverse osmosis device, 19. One-way control valve, 20. Intake control valve, 21. Exhaust pressure relief control valve, 22. Water outlet control valve . Axial flow fan, 31, steam trap, 32, water outlet control valve, 33, fresh water storage tank, 34, waste heat recovery device, 35, brine pump;

Fig. 2 is a schematic diagram of the bar-shaped specular reflective concentrating photovoltaic/photothermal cogeneration absorber of the present invention;

2-1. Concentrating heat collecting plate, 2-2. Concentrating photovoltaic cooling plate, 2-3. Insulation layer, 2-4. Concentrating battery, 2-5. Projective glass cover plate, 2-6. Metal shell.

Detailed ways

It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.

It should be noted that the terminology used herein is only for describing specific embodiments, and is not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and/or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and/or combinations thereof.

Implementation example one

This embodiment discloses a microwave-heated seawater desalination device with strip-shaped mirror-surface concentrating thermoelectric energy supply, including a fixed strip-shaped mirror-surface reflective concentrating thermoelectric energy supply device, microwave heating steam and voltage-stabilizing energy storage device, and multi-cylinder steam-driven seawater pressurization device, heat pipe heat exchange steam condensing device, humidification and dehumidification seawater desalination device, reverse osmosis seawater desalination and pressure energy recovery device; It can control two or more steam-driven seawater supercharging devices, steam waste heat heat pipe heat exchange and condensation devices and humidification and dehumidification seawater desalination devices through pipeline connections and valves; the high-pressure steam-driven seawater supercharging is connected to reverse osmosis seawater desalination Device; the steam condensing device is controlled by pipelines and valves, and is connected to the absorber of the fixed strip mirror reflection concentrating device for circulating heating.

The fixed strip mirror reflection concentrating thermoelectric energy supply device includes several strip mirror reflectors 1 and cogeneration absorbers 2 . Described several bar-shaped specular reflectors are placed side by side, and the cogeneration absorber as shown in Figure 2 is made up of two parts, and both sides are concentrating cells 2-4, and the middle is concentrating heat-collecting plate 2-1, for Strip absorber. It can also be a circular absorber with a circular groove for secondary reflection and concentrating light. The concentrating heat collecting plate absorbs the secondary reflection concentrating and heating steam, and a concentrating cell with a cooling device. The concentrating cell absorbs a part of the concentrating light, and the solar energy is converted into electricity , the concentrating photovoltaic cooling plate 2-2 with a cooler on the back cools the concentrating cells, and after preheating, the water enters the concentrating heat collecting plate 2-1 again to be heated into superheated steam.

The concentrating heat collecting plate, the concentrating photovoltaic cooling plate and the concentrating cells are placed in the metal casing, and one side of the metal casing is a projection glass cover plate 2-5, between the concentrating heat collecting plate, the concentrating photovoltaic cooling plate and the metal casing The cavity is filled with insulation layers 2-3.

The absorber is divided into two parts, the concentrating photovoltaic cooling plate 2-2 behind the concentrating cell and the concentrating heat collecting plate 2-1 in the middle. First, the water enters the concentrating photovoltaic cooling plate 2-2 for preheating and then comes out into the concentrating heat collecting plate. Plate 2-1 was returned to reheat.

In a specific implementation example, the control device includes an inverter 3 , a transformer 5 , a controller 5 , and a grid power switch 10 . The microwave heating steam and voltage stabilizing energy storage device is composed of a microwave generator 6, a microwave heating chamber 7 and a stabilizing gas storage tank 8, the stabilizing gas storage tank 8 is provided with a pressure control valve 9, the microwave heating chamber and the stabilizing pressure A one-way control valve 19 is provided at the front and rear of the gas storage pipe tank 8 .

The microwave generator 6 is for generating microwaves, the microwave heating chamber 7 is a place for heating steam by a microwave field, and the pressure-stabilized gas storage tank 8 is used to stably control the steam to be heated at a certain pressure (required pressure).

The high-pressure steam-driven seawater supercharging device includes a plurality of gas-driven liquid booster cylinders 17 connected in sequence, and a one-way air intake control valve 20 and an exhaust pressure relief control valve 21 are arranged on the upper part of the cylinder body. A gas-driven liquid piston is arranged inside, and the piston and the cylinder body are composed of non-heat-conducting materials. The lower part of the cylinder body is provided with a water inlet control valve 23 and a water outlet control valve 22 .

The heat pipe steam condensation device includes an evaporation humidification chamber 12 and a steam condensation chamber 14, the evaporation humidification chamber 12 and the steam condensation chamber 14 are connected by a heat pipe heat exchanger 15, and a steam trap 31 is arranged below the steam condensation chamber for control, The upper air inlet is connected to the outlet pipe of the gas-driven liquid pressurized cylinder, and is connected to the exhaust pressure relief control valve 21 through the pipe; the ultrasonic atomizing nozzle 13 is arranged above the evaporation humidification chamber, and the nozzle is connected to the condenser coil .

In this implementation example, the medium-high temperature pressure steam from the gas-displacement liquid pressurization cylinder enters the steam condensation chamber 14, and the heat is transferred to the evaporation humidification chamber 12 through the heat pipe. ) to drain the condensed water. The water mist coming out of the ultrasonic atomizing nozzle 13 of the evaporative humidification chamber 12 absorbs the heat conducted by the heat pipe heat exchanger 15, and is vaporized into steam, and the humidity increases.

The humidification and dehumidification seawater desalination device includes a condensation dehumidification chamber 11 and an evaporative humidification chamber 12 connected to each other. The upper part and the lower part of the condensation dehumidification chamber 11 and the evaporative humidification chamber 12 are connected, and an axial flow fan 30 is provided to force convection.

The mist water droplets coming out of the ultrasonic atomizing nozzle 13 meet the heat pipe to absorb heat and vaporize into water vapor, then enter the condensation and dehumidification chamber 11 from the upper end through the axial flow fan, and meet the condensation coil (low temperature cooling water in the pipe) to release heat and condense into pure water (freshwater). Uncondensed gas returns to the evaporation chamber 12 from the lower end, and so on.

The reverse osmosis seawater desalination and pressure energy recovery device is connected by the concentrated brine outlet of the reverse osmosis device 18 and the pressure transducer 16. The two ends of the pressure transducer 16 have the inlet and outlet of concentrated brine and seawater, and each inlet and outlet pipe is equipped with One-way control valve.

The high-pressure water from the water outlet control valve 22 passes through the reverse osmosis device 18, and the pure water produced is discharged and collected through the fresh water outlet valve 27. The other concentrated brine has a certain pressure, and the pressure energy is converted and transmitted to the seawater through the pressure transducer device 16, and is controlled by the water inlet. The valve 23 enters the pressurized cylinder 17 of the gas-driven liquid for pressurization. That is, the indirect transducer, the pressure energy of the concentrated brine can be converted into the pressure energy of the imported seawater, the energy can be recovered, and the utilization rate of energy can be improved.

There are one-way control valves and pressure gauges on the steam outlet of the thermoelectric energy supply device, the microwave heating inlet and outlet, and the connecting pipes with multiple steam-driven seawater booster devices; the one-way control valve and pressure gauge are used to adjust the inlet steam pressure;

A one-way valve 32 , a fresh water storage tank 33 and a circulating water pump 29 are arranged in sequence on the connecting pipe between the steam condensation chamber 14 and the cogeneration absorber 2 .

The high-pressure steam from the microwave heating chamber and multiple steam-driven seawater booster devices ensure the continuous and stable operation of the system. When a part of the gas-driven liquid booster cylinder is inflated, the other gas-driven liquid booster cylinder is deflated to ensure that the high-pressure steam can pass through. Continuously generate high-pressure water after the gas-driven liquid booster cylinder.

The steam-driven seawater pressurization device, the reverse osmosis device 18 and the connecting pipe of the pressure transducing device 16 are provided with a pressure gauge.

Specifically, the steam-driven seawater supercharging device is to convert the pressure of the steam into high-pressure seawater through the gas-driven liquid supercharging cylinder 17. It is also an indirect transducer. The steam pipeline and the seawater pipeline are separated. The steam comes out of the microwave heating chamber and enters the steam-driven gas-driven liquid pressurization cylinder 17. After going out, it enters the steam condensation chamber 14. The seawater enters the booster cylinder from the water inlet control valve 23. After pressure, the water outlet control valve 22 discharges.

The control valves in this implementation example all use electric regulating valves and are connected to the controller. The number of heat pipe heat exchangers is determined according to the amount of heat exchange. A steam trap is installed below the steam condensation chamber. The pistons in the gas-displacement liquid booster cylinders are provided with insulation layers.

Implementation Example 2

The specific working steps of the desalination method adopted by the above-mentioned bar-shaped mirror concentrating thermoelectric power supply microwave heating seawater desalination device are as follows:

Step 1: Before starting, fill the fresh water storage tank 33 and the pipeline with fresh water and discharge the gas, and fill the pressure transducer 16 and the gas-drive liquid booster cylinder 17 with seawater;

Step 2: The bar-shaped mirror reflects the concentrated light to the photovoltaic/photothermal cogeneration absorber, that is, the combined heat and power absorber 2, and the power generated by the concentrator battery is boosted by the inverter 3 and the transformer 4 to reach the rated voltage of the microwave generator , the controller 5 allocates and controls the photovoltaic power generation and the grid power supply to complement each other. The fresh water cools the photovoltaic panels that are concentrated by solar rays, and the temperature of the absorbed heat rises. After preheating, it enters the intermediate concentrating absorber to be heated into superheated steam, and then heats up the steam through the microwave heating chamber 7 to increase the temperature and pressure, and then enters the stable voltage. The gas storage tank 8 is used to stabilize the pressure and store energy, and adjust the reverse osmosis pressure suitable for different salinity seawater through the control valve;

Here, the term of cooling means that the concentrating cell cools down due to heat release, and the temperature decreases. Preheating refers to the temperature rise after fresh water absorbs the cooling heat of photovoltaic cells, which is called preheating;

Step 3: Open a one-way intake control valve 20 of a steam-driven seawater supercharging device, close the one-way exhaust pressure relief control valve 21 and water inlet control valve 23 of the steam-driven seawater supercharging device, and steam enters the The steam drives the gas-driven liquid booster cylinder 17 of the seawater booster device, and the expansion works to push the piston, and the gas-driven liquid booster cylinder has a boost ratio of 20-30:1; Compress seawater, and pressurized seawater enters the reverse osmosis seawater desalination device 18 to produce fresh water and concentrated brine; when the hydraulic piston of the steam-driven seawater booster moves to the bottom of the cylinder, the one-way valve of the steam-driven seawater booster is closed. The air intake control valve 20 of the steam-driven seawater pressurization device opens the exhaust pressure relief control valve 21 and the water intake control valve 23, the steam condensation chamber 14 condenses into water through the heat pipe heat exchanger 15, and the seawater passes through the reverse osmosis device 18 After the concentrated brine outlet pressure is converted into seawater, it is easy to reversely fill the gas-driven liquid booster cylinder; when the gas-driven liquid booster cylinder is filled, another steam-driven seawater booster starts to work, and another steam drives seawater The working method of the supercharging device is the same as that of the above-mentioned steam-driven seawater supercharging device, so that the cycle is alternated; for the stability of operation, a multi-cylinder configuration can be used.

Step 4: The steam discharged from the gas-driven liquid booster cylinder 17 through the exhaust pressure relief control valve 21 passes through the heat pipe heat exchanger 15 between the steam condensation chamber 14 and the heat pipe heating humidification chamber 12, condenses into water, and passes through the steam trap 31 The one-way valve on the rear pipeline enters the fresh water storage tank 33, and the water in the fresh water storage tank 33 enters the absorber 2 through the circulating water pump 29 and is heated by concentrated light to become steam again; Heat exchange, atomization by the ultrasonic atomizing nozzle 13 and suction by the axial flow fan 30 make the atomized fine liquid droplets from the ultrasonic atomizing nozzle 13 quickly evaporate and humidify, and the wet steam enters the condensing and dehumidifying chamber 11 to condense into fresh water and discharge; the heat pipe The concentrated brine discharged from the heated humidification chamber 12 is used to preheat the seawater through the waste heat recovery device 34 .

The heat pipe heat exchanger condenses the exhausted steam in the condensing chamber to generate negative pressure, and the pressure seawater passing through the concentrated brine pressure transducer automatically replenishes the pressurized cylinder, and the seawater in the evaporation chamber is atomized by the ultrasonic nozzle and then absorbs heat and evaporates into wet steam ; The axial flow fan generates a vacuum degree for the gas ejection in the evaporation chamber, so as to speed up the evaporation.

Because the absorber is powered by thermoelectricity, microwave heating is strengthened, and steam heating is rapid, uniform and stable, the utilization efficiency of the system is improved. In addition, direct expansion is used to work to obtain high-pressure reverse osmosis seawater desalination, and the discharged steam is recycled. Utilization, energy level cascade and coupling utilization improve the available energy efficiency of energy. Especially for brackish water and seawater with different concentrations, the system can automatically adjust the required reverse osmosis pressure and steam temperature, which has great development and utilization advantages for brackish water and seawater desalination in coastal and desert areas with strong wind.

It can be understood that, in the description of this specification, references to the terms "an embodiment", "another embodiment", "other embodiments", or "the first embodiment to the Nth embodiment" mean that A specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, and characteristics of materials may be combined in any suitable manner in any one or more embodiments or examples.

The above descriptions are only preferred embodiments of the present disclosure, and are not intended to limit the present disclosure. For those skilled in the art, the present disclosure may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present disclosure shall be included within the protection scope of the present disclosure.

Claims (10)

1. Strip-shaped mirror concentrating thermoelectric energy supply microwave heating seawater desalination device, which is characterized in that it includes: energy supply device, control device, microwave heating steam and stable voltage energy storage device, steam-driven seawater booster device, reverse osmosis seawater desalination And pressure energy recovery device; The energy supply device includes several strip mirrors and cogeneration absorbers, and the several strip mirrors reflect concentrated light to the cogeneration absorber for power generation and transmit the power generation to the control device; The control device controls photovoltaic power generation and grid power supply to complement each other; The microwave heating steam and the pressure-stabilizing energy storage device heat the superheated steam heated by the energy supply device to increase the temperature and pressure to enter the gas storage tank to stabilize the pressure and store energy. Osmotic pressure and transfer of steam to a steam-driven seawater pressurization unit; When the steam drives the seawater supercharging device, when the steam reaches a certain pressure, the steam pushes the gas-driven liquid piston to compress the seawater, and the pressurized seawater enters the reverse osmosis seawater desalination and pressure energy recovery device to generate fresh water and concentrated brine and perform pressure energy recovery. Recycle. 2. The device for desalination of seawater heated by microwaves heated by strip-shaped mirror surface concentrating heat and electricity as claimed in claim 1, further comprising a heat pipe heat exchange steam condensing device and a humidification and dehumidification seawater desalination device, the heat pipe heat exchange The steam condensing device condenses into water and enters the combined heat and power absorber to be concentrated and heated into steam again to realize cyclic heating; The humidifying and dehumidifying seawater desalination device rapidly evaporates and humidifies the seawater, and the wet steam is condensed into fresh water to be discharged; the discharged concentrated brine is preheated to the seawater through the waste heat recovery device. 3. The device for desalination of seawater heated by microwave heating with strip-shaped mirror surface concentrating heat and electricity as claimed in claim 1, wherein said several strip-shaped mirror surface reflectors are placed side by side, and said cogeneration absorber consists of two parts It consists of concentrating cells on both sides and a strip absorber in the middle. 4. The bar-shaped mirror surface concentrating thermoelectric power supply microwave heating seawater desalination device as claimed in claim 1 is characterized in that, the control device includes an inverter, a transformer, a controller and a grid power switch; the concentrating battery The obtained electric energy is boosted by the inverter and transformer to reach the rated voltage of the microwave generator in the microwave heating steam and voltage stabilizing energy storage device. The controller controls the complementarity of the photovoltaic power generation and the grid power supply by controlling the switching switch of the grid power supply. 5. The microwave-heated seawater desalination device with strip-shaped mirror-surface concentrating thermoelectric power supply as claimed in claim 1, characterized in that, the microwave heating steam and voltage-stabilizing energy storage device comprises a microwave heating chamber, a microwave generator, and a voltage-stabilizing storage device. The gas tank and the regulated gas storage tank are equipped with pressure control valves, and the microwave heating chamber and the regulated gas storage tank are equipped with one-way pressure control valves before and after; The microwave heating chamber heats and raises the temperature and pressure of the steam, enters the gas storage tank to stabilize the pressure and store energy, and adjusts the reverse osmosis pressure required for seawater with different salinities through the control valve. 6. The device for desalination of seawater heated by microwaves heated by strip-shaped mirror surface concentrating heat and electricity as claimed in claim 1, wherein the steam-driven seawater pressurization device comprises a plurality of gas-displacement liquid pressurization cylinders connected in sequence, The upper part of the liquid-displacing booster cylinder is provided with a one-way gas-inlet and outlet control valve, the air-displacement liquid booster cylinder is equipped with an air-displacement piston, and the lower part of the air-displacement liquid booster cylinder is equipped with a liquid inlet and outlet unit. to the control valve; The microwave heating steam and the steam from the pressure stabilizing energy storage device enter the gas-displacement liquid booster cylinder, expand and do work to push the piston, and when the steam reaches a certain pressure, the steam pushes the gas-displacement liquid piston to compress seawater. 7. The device for desalination of seawater heated by microwaves heated by strip-shaped mirror surface concentrating heat and electricity as claimed in claim 2, wherein the heat pipe steam condensation device comprises an evaporation humidification chamber and a steam condensation chamber, and the evaporation humidification chamber It is connected with the steam condensing chamber through a heat pipe heat exchanger, the steam condensing chamber is equipped with a steam trap for control, and the upper air inlet is connected with the outlet pipe of the gas drive liquid pressurized cylinder, and is connected with the check valve through the pipe; the evaporation booster There is an ultrasonic atomizing nozzle above the wet chamber, and the nozzle above is connected with the condenser coil. 8. The device for desalination of seawater heated by microwaves heated by strip-shaped mirror surface concentrating heat and electricity as claimed in claim 2, wherein the desalination device for humidifying and dehumidifying seawater comprises a condensation dehumidification chamber and an evaporative humidification chamber connected to each other, The upper part of the condensation dehumidification chamber and the evaporation humidification chamber communicate with the lower part, and an axial flow fan is arranged below. 9. The device for desalination of seawater heated by microwaves heated by strip-shaped mirror surfaces as claimed in claim 1, wherein said reverse osmosis seawater desalination and pressure energy recovery device comprises a reverse osmosis device and a pressure transducer; The concentrated brine outlet of the reverse osmosis device is connected to the pressure transducer. Both ends of the pressure transducer have a brine and seawater inlet and outlet, and each inlet and outlet pipe is provided with a one-way control valve. 10. The desalination method based on the strip-shaped mirror surface concentrating thermoelectric power supply microwave heating seawater desalination device according to claim 1, characterized in that it comprises: Several strip-shaped mirror reflectors reflect the concentrated light to the combined heat and power absorber for photovoltaic power generation; Photovoltaic power generation reaches the operating voltage of microwave heating steam and voltage stabilizing energy storage device after inversion and boosting, and provides electric energy; In the process of photovoltaic power generation, the thermal energy generated by the combined heat and power absorber heats the pure water into superheated steam; The superheated steam heats up the steam through the microwave heating steam and the pressure-stabilizing energy storage device, and then enters the gas storage tank to stabilize the pressure and store energy, and adjust the reverse osmosis pressure suitable for seawater with different salinities through the control valve; When the steam drives the steam in the seawater supercharging device to reach a certain pressure, the steam pushes the gas-driven liquid piston to compress the seawater, and the pressurized seawater enters the reverse osmosis seawater desalination and pressure energy recovery device to generate fresh water and concentrated brine and carry out pressure energy Recycle.