A seawater desalination device with automatic sampling function

Abstract

This invention discloses a seawater desalination device with automatic sampling function, belonging to the technical field of seawater desalination equipment. It includes a liquid supply system, a control system, and a desalination cylinder. An outlet pipe is located on the upper side of the desalination cylinder, a connecting pipe and an inlet pipe are located on the lower side, and a drain pipe is located at the bottom of the cylinder. The inlet pipe is connected to the liquid supply system. A partition is located in the middle of the desalination cylinder, and a drive motor is installed on the cylinder, with its output end connected to a transmission shaft. A cooling plate is installed above the partition, and a sleeve is located below the partition. A coil is embedded in the sleeve, and each turn of the coil is electrically connected to the control system via a wire. A first stirring plate and a second stirring plate are installed inside the sleeve. The first stirring plate stirs the seawater through its revolution and rotation, and simultaneously heats and distills the seawater through a metal material, making the seawater more uniformly mixed, reducing the heating time and energy required, and ensuring more even heating of the seawater, thus reducing energy waste.

Description

Technical Field

[0001] This invention relates to the field of seawater desalination equipment technology, specifically a seawater desalination device with automatic sampling function. Background Technology

[0002] Seawater desalination equipment is an integrated system that converts seawater into freshwater through physical or chemical methods. Its core technologies include two main categories: distillation and reverse osmosis. Distillation, as the mainstream thermal desalination technology, obtains freshwater by heating seawater until it vaporizes and then condensing the steam. It is particularly suitable for high-salinity seawater treatment and applications with low-grade heat sources.

[0003] The existing seawater desalination equipment has the following problems: (1) the seawater is heated unevenly, resulting in low desalination efficiency; (2) the desalination process is not cleaned after long-term desalination, resulting in blockage. Summary of the Invention

[0004] The purpose of this invention is to provide a seawater desalination device with automatic sampling function to solve the problems raised in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a seawater desalination device with automatic sampling function, comprising a liquid supply system and a control system, including a desalination cylinder, an outlet pipe provided on the upper side of the desalination cylinder, a connecting pipe and an inlet pipe provided on the lower side of the desalination cylinder, a sewage discharge pipe provided at the bottom of the desalination cylinder, the inlet pipe being connected to the liquid supply system, a partition provided in the middle of the desalination cylinder, a drive motor installed on the desalination cylinder, and a transmission shaft connected to the output end of the drive motor;

[0006] A cooling plate is installed above the partition, and a sleeve is provided on the lower side of the partition. A coil is embedded in the sleeve, and each turn of the coil is electrically connected to the control system through a wire. A first stirring plate and a second stirring plate are installed inside the sleeve.

[0007] After the drive shaft passes through the partition, several crossbars are provided. Each of the crossbars is fitted with a rotating cylinder. The rotating cylinders and the crossbars are rotatably connected. Several first stirring plates are provided. The several first stirring plates are respectively installed on the several rotating cylinders. A follower gear is installed at the end of the rotating cylinder away from the drive shaft.

[0008] The inner wall of the sleeve is provided with a first arc rack and a second arc rack. The first arc rack is located above one side of the second arc rack. The first arc rack and the second arc rack are provided with gear teeth on opposite sides. The follower gear alternately meshes with the gear teeth on the first arc rack and the second arc rack.

[0009] A plurality of fixed cylinders are provided on the lower side of the drive shaft. The plurality of fixed cylinders are located below a plurality of crossbars. A telescopic cylinder is slidably installed on the plurality of fixed cylinders. The telescopic cylinder slides axially on the fixed cylinders. A return spring is connected between the fixed cylinders and the telescopic cylinders. A cleaning ball is provided at one end of the telescopic cylinder. The cleaning ball is away from the drive shaft.

[0010] The cleaning ball is provided with a brush on the outside and an expansion ball is provided inside the cleaning ball. The expansion ball is made of elastic material. A cleaning fluid is provided between the cleaning ball and the expansion ball. The cleaning fluid is a conductive liquid. The cleaning ball has several spray holes. Each of the spray holes is equipped with a one-way valve. The spray holes are connected to the cleaning fluid.

[0011] The expansion sphere contains a heat-conducting medium and a metal plate. The metal plate is in contact with the heat-conducting medium, which is a material that expands when heated. The metal plate is located within the magnetic field of the coil.

[0012] The drive shaft is fitted with a first air slip ring and a second air slip ring at both ends, with the first air slip ring located above the second air slip ring. Both the first and second air slip rings are mounted on the desalination cylinder. The interiors of the fixed cylinder, the telescopic cylinder, and the drive shaft are interconnected. The upper end of the drive shaft is connected to the inlet of the first air slip ring via a pipe, and the outlet of the first air slip ring is connected to a pressure pump via a pipe. The pressure pump is mounted on the desalination cylinder.

[0013] The cleaning ball is connected to the inlet of the second air slip ring via a hose. The bottom of the desalination cylinder is provided with a filling port, and the outlet of the second air slip ring is connected to the filling port via a pipe.

[0014] Staff can add cleaning fluid through the filling port. The cleaning fluid enters the inlet of the second air slip ring from the filling port, and then is delivered to the cleaning ball from the outlet of the second air slip ring and the hose, thus replenishing the cleaning fluid.

[0015] A first electric ring is provided at the bottom of the desalination cylinder directly opposite the drive shaft. The first electric ring is located outside the filling port. A second electric ring is provided on the inner wall of the sleeve outside the first electric ring. Both the first and second electric rings are electrically connected to the control system.

[0016] The inner wall of the connecting pipe is provided with several high-temperature plates, the inner wall of the desalination cylinder above the partition is provided with several low-temperature plates, and the cooling plate is provided with several cooling plates. Each of the high-temperature plate, low-temperature plate, and cooling plate is provided with a connecting plate and two semiconductors of different materials. The connecting plate is made of metal. One end of each of the two semiconductors of different materials is connected to the connecting plate. The two semiconductors on the high-temperature plate and the two semiconductors on the low-temperature plate are connected by wires. One of the wires is connected to the control system. The two semiconductors on the cooling plate are electrically connected to the control system by wires.

[0017] Both the first and second stirring plates are made of spiral twisting. The first stirring plate contains a metal material, which is located within the magnetic field of the coil.

[0018] Solenoid valves and flow meters are installed in the inlet pipe, outlet pipe, connecting pipe and drain pipe, and the solenoid valves and flow meters are electrically connected to the control system.

[0019] A cooling chamber is formed between the upper side of the partition and the desalination cylinder, and a distillation chamber is formed between the lower side of the partition and the desalination cylinder. The connecting pipe connects the cooling chamber and the distillation chamber. The inlet pipe and the drain pipe are connected to the distillation chamber, and the outlet pipe is connected to the cooling chamber.

[0020] The desalination tank is equipped with a control panel, and the control system is located within the control panel.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. Seawater stirring and heating treatment improves seawater desalination efficiency. The first stirring plate stirs the seawater through revolution and rotation, while simultaneously heating and distilling the seawater through the metal material. This makes the seawater more evenly mixed, reducing the time and energy required for heating and ensuring more uniform heating, thus reducing energy waste. In addition, stirring can improve water quality. During the stirring process, the flow and mixing of seawater helps remove impurities and pollutants, resulting in purer freshwater. Stirring also promotes the uniform distribution of suspended and dissolved solids in the water, reducing the possibility of impurities accumulating in certain areas.

[0023] 2. Cleaning of the desalination cylinder for continued use. The metal plate inside the cleaning ball is located within the magnetic field of the coil. A drive motor rotates the cleaning ball, while brushes on the cleaning ball simultaneously clean the desalination cylinder. The cleaning ball drives the expansion ball and metal plate to rotate as well. The metal plate cuts magnetic lines of force within the coil's magnetic field, generating current and heat within the metal plate. This heat is conducted to the heat-conducting medium, causing it to expand and compress the expansion ball, gradually increasing its diameter. The pressure of the cleaning fluid between the expansion ball and the cleaning ball gradually increases. At this point, the cleaning fluid opens the one-way valve in the spray nozzle, spraying the cleaning fluid onto the bottom of the desalination cylinder. This, combined with the brushes on the cleaning ball, cleans the bottom of the desalination cylinder for continued use.

[0024] 3. Energy recovery is performed on the distilled seawater to reduce the energy consumption of the desalination equipment. The two semiconductors and connecting plates on the high-temperature plate are the hot end of the Seebeck effect, and the two semiconductors and connecting plates on the low-temperature plate are the cold end of the Seebeck effect. The temperature of the hot end is higher than that of the cold end. The hot end and the cold end generate current through the Seebeck effect and transmit it to the control system. The control system processes the current and uses it to cool the cooling end, thereby reducing the energy consumption of the desalination equipment. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a cross-sectional view of the entire invention;

[0027] Figure 3 yes Figure 2 A magnified view of a portion of region A in the middle;

[0028] Figure 4 yes Figure 2 A magnified view of a section in region B (the arrows indicate the direction of airflow);

[0029] Figure 5 This is a schematic diagram of the coil structure in this invention;

[0030] Figure 6 This is a schematic diagram of the cooling plate structure in this invention;

[0031] Figure 7 This is a schematic diagram of the structure of the first and second circular arc racks in this invention;

[0032] Figure 8 This is a schematic diagram of the structure of the first stirring plate and the second stirring plate in this invention;

[0033] Figure 9 This is a schematic diagram of the filling port structure in this invention.

[0034] In the diagram: 1. Control panel; 11. Desalination cylinder; 111. Outlet pipe; 112. Connecting pipe; 113. Inlet pipe; 114. Partition plate; 115. Sleeve; 116. Coil; 117. First arc rack; 118. Second arc rack; 119. Drain pipe; 2. Drive motor; 21. Drive shaft; 211. Crossbar; 212. Rotating cylinder; 213. Follower gear; 22. First stirring plate; 23. Cleaning ball; 231. Fixed cylinder; 232. Telescopic cylinder; 233. Expansion ball; 234. Metal plate; 235. Second stirring plate; 24. First electric ring; 241. Second electric ring; 25. High temperature plate; 251. Low temperature plate; 26. First air slip ring; 261. Second air slip ring; 262. Filling port; 3. Cooling plate; 31. Refrigeration plate. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example: Figures 1-9 As shown, the present invention provides a technical solution for a seawater desalination device with automatic sampling function, including a liquid supply system, a control system, and a desalination cylinder 11. An outlet pipe 111 is provided on the upper side of the desalination cylinder 11, a connecting pipe 112 and an inlet pipe 113 are provided on the lower side of the desalination cylinder 11, a drain pipe 119 is provided at the bottom of the desalination cylinder 11, the inlet pipe 113 is connected to the liquid supply system, a partition 114 is provided in the middle of the desalination cylinder 11, a drive motor 2 is installed on the desalination cylinder 11, and the output end of the drive motor 2 is connected to a transmission shaft 21; a drive shaft 21 is installed above the partition 114. The device is equipped with a cooling plate 3. A sleeve 115 is provided on the lower side of the partition plate 114. A coil 116 is embedded in the sleeve 115. Each coil 116 is electrically connected to the control system through a wire. A first stirring plate 22 and a second stirring plate 235 are installed in the sleeve 115. Both the first stirring plate 22 and the second stirring plate 235 are made of spiral twisting. The first stirring plate 22 is provided with metal material. The metal material in the first stirring plate 22 is in the magnetic field of the coil 116. A control panel 1 is provided on the desalination cylinder 11. The control system is located in the control panel 1.

[0037] After the drive shaft 21 passes through the partition 114, several crossbars 211 are provided. Each of the crossbars 211 is fitted with a rotating cylinder 212, and the rotating cylinder 212 and the crossbars 211 are rotatably connected. Several first stirring plates 22 are provided, and the several first stirring plates 22 are respectively installed on several rotating cylinders 212. A follower gear 213 is installed at the end of the rotating cylinder 212 away from the drive shaft 21. A first arc rack 117 and a second arc rack 118 are provided on the inner wall of the sleeve 115. The first arc rack 117 is located above one side of the second arc rack 118. The opposite sides of the first arc rack 117 and the second arc rack 118 are provided with gear teeth. The follower gear 213 alternately meshes with the gear teeth on the first arc rack 117 and the second arc rack 118.

[0038] A plurality of fixed cylinders 231 are arranged on the lower side of the drive shaft 21. The fixed cylinders 231 are located below a plurality of crossbars 211. Telescopic cylinders 232 are slidably mounted on the fixed cylinders 231. The telescopic cylinders 232 slide axially on the fixed cylinders 231. A return spring is connected between the fixed cylinders 231 and the telescopic cylinders 232. A cleaning ball 23 is provided at one end of the telescopic cylinder 23, away from the drive shaft 21. A brush is provided on the outside of the cleaning ball 23. An expansion ball 233 is provided, which is made of elastic material. A cleaning fluid, which is a conductive liquid, is placed between the cleaning ball 23 and the expansion ball 233. Several spray holes are opened on the cleaning ball 23, and a one-way valve is installed in each of the spray holes. The spray holes are connected to the cleaning fluid. A heat-conducting medium and a metal plate 234 are placed inside the expansion ball 233. The metal plate 234 is in contact with the heat-conducting medium, which is a material that expands when heated. The metal plate 234 is in the magnetic field of the coil 116.

[0039] The drive shaft 21 is fitted with a first air slip ring 26 and a second air slip ring 261 at both ends. The first air slip ring 26 is located above the second air slip ring 261. Both the first air slip ring 26 and the second air slip ring 261 are mounted on the desalination cylinder 11. The fixed cylinder 231, the telescopic cylinder 232 and the drive shaft 21 are internally interconnected. The upper end of the drive shaft 21 is connected to the inlet of the first air slip ring 26 through a pipe. The outlet of the first air slip ring 26 is connected to a pressure pump (not shown in the figure) through a pipe. The pressure pump is mounted on the desalination cylinder 11. The cleaning ball 23 is connected to the inlet of the second air slip ring 261 through a hose. The bottom of the desalination cylinder 11 is provided with a filling port 262. The outlet of the second air slip ring 261 is connected to the filling port 262 through a pipe.

[0040] The cleaning fluid can be added through the filling port 262. The cleaning fluid enters the inlet of the second air slip ring 261 from the filling port 262, and then is delivered to the cleaning ball 23 from the outlet of the second air slip ring 261 and the hose, thus replenishing the cleaning fluid.

[0041] A first electric ring 24 is provided at the bottom of the desalination cylinder 11 directly opposite the drive shaft 21. The first electric ring 24 is located outside the filling port 262. A second electric ring 241 is provided on the inner wall of the sleeve 115 outside the first electric ring 24. Both the first electric ring 24 and the second electric ring 241 are electrically connected to the control system.

[0042] Several high-temperature plates 25 are provided on the inner wall of the connecting pipe 112, several low-temperature plates 251 are provided on the inner wall of the desalination cylinder 11 above the partition 114, and several cooling plates 31 are provided on the cooling plate 3. Each of the high-temperature plate 25, low-temperature plate 251 and cooling plate 31 is provided with a connecting plate and two semiconductors of different materials. The connecting plate is made of metal, and one end of each of the two semiconductors of different materials is connected to the connecting plate. The two semiconductors on the high-temperature plate 25 and the two semiconductors on the low-temperature plate 251 are connected by wires. One of the wires is connected to the control system, and the two semiconductors on the cooling plate 31 are electrically connected to the control system by wires.

[0043] Solenoid valves and flow meters are installed in the inlet pipe 113, outlet pipe 111, connecting pipe 112, and drain pipe 119. The solenoid valves and flow meters are electrically connected to the control system. A cooling chamber is formed between the upper side of the partition 114 and the desalination cylinder 11, and a distillation chamber is formed between the lower side of the partition 114 and the desalination cylinder 11. The connecting pipe 112 connects the cooling chamber and the distillation chamber. The inlet pipe 113 and drain pipe 119 are connected to the distillation chamber, and the outlet pipe 111 is connected to the cooling chamber.

[0044] Working principle: Pressing the start button on the control panel 1 opens the solenoid valve in the inlet pipe 113 and delivers the seawater to be desalinated to the inlet pipe 113 through the liquid supply system. The seawater enters the distillation chamber through the inlet pipe 113. The liquid supply system feeds back the seawater flow data to the control system. The control system drives the drive shaft 21 to rotate through the drive motor 2 and energizes the coils 116 between several first stirring plates 22. This causes the metal material in several first stirring plates 22 to be located in the magnetic field of the coils 116, while the metal plate 234 in the cleaning ball 23 is not located in the magnetic field of the coils 116. The drive shaft 21 drives the crossbar 211 and the rotating cylinder 212 to revolve. The rotating cylinder 212 drives the follower gear 213 and the first stirring plates 22 to revolve. While revolving, the follower gear 213 alternately meshes with the first arc rack 117 and the second arc rack 118.

[0045] When the follower gear 213 meshes with the first arc rack 117, the follower gear 213 rotates in the forward direction, and the follower gear 213 drives the first stirring plate 22 to rotate in the forward direction through the rotating cylinder 212; when the follower gear 213 meshes with the second arc rack 118, the follower gear 213 rotates in the reverse direction, and the follower gear 213 drives the first stirring plate 22 to rotate in the reverse direction through the rotating cylinder 212.

[0046] By alternately meshing the follower gear 213 with the first circular arc rack 117 and the second circular arc rack 118, the first stirring plate 22 can revolve and rotate. The revolving and rotating first stirring plate 22 cuts magnetic field lines in the magnetic field of the coil 116. The metal material inside the first stirring plate 22 generates current and heats up. While the first stirring plate 22 stirs the seawater through its revolution and rotation, it also heats and distills the seawater through the metal material, making the seawater more uniformly mixed, reducing the time and energy required for heating, and making the seawater more evenly heated, thus reducing energy waste. In addition, stirring can also improve water quality. During the stirring process, the flow and mixing of seawater helps to remove impurities and pollutants, making the final freshwater purer. Stirring can promote the uniform distribution of suspended and dissolved substances in the water, reducing the possibility of impurities accumulating in certain areas.

[0047] While the first stirring plate 22 distills seawater, the drive motor 2 also drives the fixed cylinder 231 to revolve via the transmission shaft 21. The fixed cylinder 231 drives the telescopic cylinder 232, cleaning ball 23, and expansion ball 233 to revolve. The telescopic cylinder 232 drives the second stirring plate 235 to revolve. The encoder inside the drive motor 2 feeds data back to the control system. The control system pressurizes the external air through the pressurizing pump and delivers it to the inside of the transmission shaft 21 through the pipe and the first air slip ring 26. The pressurized air enters the inside of the fixed cylinder 231 and the telescopic cylinder 232 after passing through the inside of the transmission shaft 21. The pressurized air pushes the telescopic cylinder 232 to move away from the fixed cylinder 231. At the same time, the telescopic cylinder 232 stretches the return spring. The telescopic cylinder 232 drives the second stirring plate 235 to move away from the fixed cylinder 231, so that the distance between the second stirring plate 235 and the center of the transmission shaft 21 increases.

[0048] When the second stirring plate 235 moves to the outermost position, the pressurizing pump feeds back the air pressure signal to the control system. The control system reverses the operation of the pressurizing pump. At this time, the reset spring is released, and the reset spring pulls the telescopic cylinder 232 to move closer to the fixed cylinder 231. The air between the telescopic cylinder 232 and the fixed cylinder 231 is drawn into the atmosphere through the drive shaft 21, the first air slip ring 26 and the pressurizing pump. The telescopic cylinder 232 drives the second stirring plate 235 to move closer to the fixed cylinder 231, so that the distance between the center of the second stirring plate 235 and the drive shaft 21 becomes smaller.

[0049] By using the forward and reverse operation of the pressure pump, and in conjunction with the reset spring, the second stirring plate 235 reciprocates along the axial direction of the fixed cylinder 231, causing seawater at different positions at the bottom of the distillation chamber to move upward, so that seawater at different positions can contact the first stirring plate 22 for distillation treatment, thereby generating more water vapor and improving distillation efficiency and seawater desalination efficiency.

[0050] After distillation, the seawater produces water vapor, which is transported to the cooling chamber of the desalination cylinder 11 through the connecting pipe 112. The flow meter in the connecting pipe 112 feeds back the flow data of the water vapor to the control system. The high-temperature plate 25 in the connecting pipe 112 first comes into contact with the high-temperature steam. Then, the high-temperature steam comes into contact with the cooling plate 31 on the cooling plate 3. The control system connects the two semiconductors on the cooling plate 31 to the circuit. The two semiconductors on the cooling plate 31 and the connecting plate are the cooling end of the Peltier effect. The high-temperature steam is cooled down through the cooling end, so that the cooled water vapor becomes liquid and is discharged from the liquid outlet pipe 111. The staff automatically samples the desalinated seawater from the liquid outlet pipe 111.

[0051] When the flow meter in the connecting pipe 112 detects the flow of high-temperature water vapor, the two semiconductors and connecting plates on the high-temperature plate 25 are the hot end of the Seebeck effect, and the two semiconductors and connecting plates on the low-temperature plate 251 are the cold end of the Seebeck effect. The temperature of the hot end is higher than that of the cold end. The hot end and the cold end generate current through the Seebeck effect and transmit it to the control system. The control system processes the current and uses it to cool the cooling end.

[0052] After long-term distillation and cooling, a large amount of impurities (mainly scale) will accumulate at the bottom of the desalination cylinder 11. The inside of the desalination cylinder 11 needs to be cleaned for reuse. The control system connects the coil 116 on the outside of the fixed cylinder 231 to the circuit, placing the metal plate 234 inside the cleaning ball 23 within the magnetic field of the coil 116. This, in turn, drives the drive shaft 21 to rotate via the drive motor 2. The drive shaft 21 then rotates several fixed cylinders 231, which in turn rotate the telescopic cylinder 232. The telescopic cylinder 232 then rotates the cleaning ball 23, and the brushes on the cleaning ball 23 simultaneously clean the desalination cylinder 11. The cleaning ball 23 also drives the expansion ball 2... 33 and metal plate 234 rotate together, causing metal plate 234 to cut magnetic field lines within the magnetic field of coil 116. Meanwhile, the metal material in the first stirring plate 22 is not located within the magnetic field of coil 116. Current is generated and heat is generated within metal plate 234. Metal plate 234 conducts heat to the heat-conducting medium, which expands under heat. The heat-conducting medium compresses the expansion ball 233, causing the diameter of the expansion ball 233 to gradually increase. The pressure of the cleaning fluid between the expansion ball 233 and the cleaning ball 23 gradually increases. At this time, the cleaning fluid opens the one-way valve in the spray hole, and the cleaning fluid is sprayed from the spray hole onto the bottom of the desalination cylinder 11. It works in conjunction with the brush on the cleaning ball 23 to clean the bottom of the desalination cylinder 11.

[0053] After the desalination tank 11 is brushed and cleaned with cleaning solution, most of the impurities inside the tank are collected in the cleaning solution, while a small number of impurities that are difficult to clean will require further cleaning. The control system connects the first electric ring 24 and the second electric ring 241 to the positive and negative terminals of the power supply, respectively, so that current flows through the cleaning solution between the first electric ring 24 and the second electric ring 241. This causes the bicarbonate ions in the cleaning solution or impurities to react with the first electric ring 24 and the second electric ring 241, thereby dissolving the scale. Afterward, the control system opens the solenoid valve in the drain pipe 119, allowing the dissolved scale to be discharged from the drain pipe 119.

[0054] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A seawater desalination device with automatic sampling function, comprising a liquid supply system and a control system, characterized in that: The device includes a desalination cylinder (11), an outlet pipe (111) on the upper side of the desalination cylinder (11), a connecting pipe (112) and an inlet pipe (113) on the lower side of the desalination cylinder (11), a drain pipe (119) at the bottom of the desalination cylinder (11), the inlet pipe (113) being connected to the liquid supply system, a partition (114) in the middle of the desalination cylinder (11), a drive motor (2) mounted on the desalination cylinder (11), and a transmission shaft (21) connected to the output end of the drive motor (2). A cooling plate (3) is installed above the partition (114), and a sleeve (115) is provided on the lower side of the partition (114). A coil (116) is embedded in the sleeve (115). Each turn of the coil (116) is electrically connected to the control system through a wire. A first stirring plate (22) and a second stirring plate (235) are installed in the sleeve (115). After the drive shaft (21) passes through the partition (114), a number of crossbars (211) are provided. A rotating cylinder (212) is sleeved on each of the crossbars (211). A rotatable connection is formed between the rotating cylinder (212) and the crossbars (211). A number of first stirring plates (22) are provided. The number of first stirring plates (22) are respectively installed on the number of rotating cylinders (212). A follower gear (213) is installed at the end of the rotating cylinder (212) away from the drive shaft (21). The inner wall of the sleeve (115) is provided with a first arc rack (117) and a second arc rack (118). The first arc rack (117) is located above one side of the second arc rack (118). The first arc rack (117) and the second arc rack (118) are provided with gear teeth on opposite sides. The follower gear (213) alternately meshes with the gear teeth on the first arc rack (117) and the second arc rack (118). A plurality of fixed cylinders (231) are provided on the lower side of the drive shaft (21). The plurality of fixed cylinders (231) are located below a plurality of crossbars (211). Telescopic cylinders (232) are slidably installed on the plurality of fixed cylinders (231). The telescopic cylinders (232) slide in the axial direction of the fixed cylinders (231). A return spring is connected between the fixed cylinders (231) and the telescopic cylinders (232). A cleaning ball (23) is provided at one end of the telescopic cylinder (232). The cleaning ball (23) is away from the drive shaft (21). The cleaning ball (23) is provided with a brush on the outside and an expansion ball (233) is provided inside the cleaning ball (23). The expansion ball (233) is made of elastic material. A cleaning liquid is provided between the cleaning ball (23) and the expansion ball (233). The cleaning liquid is a conductive liquid. Several spray holes are opened on the cleaning ball (23). A one-way valve is installed in each of the spray holes. The spray holes are connected to the cleaning liquid. The expansion ball (233) is provided with a heat-conducting medium and a metal plate (234). The metal plate (234) is in contact with the heat-conducting medium, which is a material that expands when heated. The metal plate (234) is in the magnetic field of the coil (116).

2. The seawater desalination equipment with automatic sampling function according to claim 1, characterized in that: The drive shaft (21) is fitted with a first air slip ring (26) and a second air slip ring (261) at both ends. The first air slip ring (26) is located above the second air slip ring (261). The first air slip ring (26) and the second air slip ring (261) are both set on the desalination cylinder (11). The interiors of the fixed cylinder (231), the telescopic cylinder (232) and the drive shaft (21) are interconnected. The upper end of the drive shaft (21) is connected to the inlet of the first air slip ring (26) through a pipe. The outlet of the first air slip ring (26) is connected to the pressure pump through a pipe. The pressure pump is installed on the desalination cylinder (11). The cleaning ball (23) is connected to the inlet of the second air slip ring (261) via a hose. The desalination cylinder (11) is provided with a filling port (262) at the bottom. The outlet of the second air slip ring (261) is connected to the filling port (262) via a pipe.

3. A seawater desalination device with automatic sampling function according to claim 2, characterized in that: A first electric ring (24) is provided at the bottom of the desalination cylinder (11) directly opposite the drive shaft (21). The first electric ring (24) is located outside the filling port (262). A second electric ring (241) is provided on the inner wall of the sleeve (115) outside the first electric ring (24). Both the first electric ring (24) and the second electric ring (241) are electrically connected to the control system.

4. A seawater desalination device with automatic sampling function according to claim 3, characterized in that: The inner wall of the connecting pipe (112) is provided with several high-temperature plates (25), the inner wall of the desalination cylinder (11) above the partition (114) is provided with several low-temperature plates (251), the cooling plate (3) is provided with several cooling plates (31), the high-temperature plate (25), the low-temperature plate (251) and the cooling plate (31) are all provided with connecting plates and two kinds of semiconductors of different materials. The connecting plate is made of metal. One end of each of the two kinds of semiconductors is connected to the connecting plate. The two kinds of semiconductors on the high-temperature plate (25) and the two kinds of semiconductors on the low-temperature plate (251) are connected by wires. One of the wires is connected to the control system. The two kinds of semiconductors on the cooling plate (31) are electrically connected to the control system by wires.

5. A seawater desalination device with automatic sampling function according to claim 4, characterized in that: The first stirring plate (22) and the second stirring plate (235) are both made of spiral twisting. The first stirring plate (22) contains metal material, which is in the magnetic field of the coil (116).

6. A seawater desalination device with automatic sampling function according to claim 5, characterized in that: Solenoid valves and flow meters are installed in the inlet pipe (113), outlet pipe (111), connecting pipe (112) and drain pipe (119), and the solenoid valves and flow meters are electrically connected to the control system. A cooling chamber is formed between the upper side of the partition (114) and the desalination cylinder (11), and a distillation chamber is formed between the lower side of the partition (114) and the desalination cylinder (11). The connecting pipe (112) connects the cooling chamber and the distillation chamber. The liquid inlet pipe (113) and the sewage outlet pipe (119) are connected to the distillation chamber, and the liquid outlet pipe (111) is connected to the cooling chamber.

7. A seawater desalination device with automatic sampling function according to claim 6, characterized in that: The desalination cylinder (11) is equipped with a control panel (1), and the control system is located inside the control panel (1).

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