Solar seawater desalination equipment and use method thereof

Abstract

The invention discloses solar seawater desalination equipment and a use method, and relates to the technical field of seawater desalines.The solar seawater desalination equipment comprises a bottom plate, a workbench is arranged on the upper surface of the bottom plate, a distillation mechanism is arranged on the upper surface of the workbench, and the distillation mechanism comprises a cylinder assembly and a heating assembly; the supporting stand column is arranged on the upper surface of the bottom plate, a water receiving frame is arranged on the upper surface of the supporting stand column, a sewer pipeline is arranged on the bottom face of the water receiving frame, a limiting ring frame is arranged on the upper surface of the workbench body, an opening is formed in the center of the limiting ring frame, and a thin-section cylinder is arranged in the opening. The bottom heating frame body is arranged on the upper surface of the working table body, the bottom heating frame body is filled with PCM phase change paraffin, and in the scheme, efficient and stable seawater desalination treatment is realized through the arrangement of the distillation mechanism and through a rotary accelerated evaporation and double heating mode.

Description

Technical Field

[0001] This invention relates to the field of seawater desalination technology, specifically to a solar-powered seawater desalination device and its usage method. Background Technology

[0002] Water is the source of life and an indispensable resource for human survival and development. However, global water resources are extremely unevenly distributed, and many regions face severe freshwater shortages. Among numerous seawater desalination technologies, solar-powered seawater desalination technology has attracted much attention due to its unique advantages. Solar energy, as an inexhaustible and clean energy source, has significant characteristics such as wide distribution, no pollution, and sustainability. Using solar energy for seawater desalination eliminates the need for traditional fossil fuels, effectively reducing negative environmental impacts and aligning with the concept of green development. Traditional seawater desalination methods, such as multi-stage flash evaporation and reverse osmosis, while technologically mature and capable of handling large volumes, often consume large amounts of energy and have high operating costs. Solar-powered seawater desalination equipment cleverly utilizes solar heat to heat seawater, causing it to evaporate, and then condenses the steam to obtain freshwater. The entire process relies primarily on solar energy, significantly reducing energy consumption and operating costs.

[0003] However, existing technologies still have many shortcomings. In the distillation stage, most traditional equipment uses static heating to evaporate seawater. In this mode, the contact area between seawater and the heating surface is greatly limited, confined to a limited area where seawater naturally covers the heating surface. This results in low heat transfer efficiency, slow evaporation rate, and consequently, a lengthy desalination process, making it difficult to improve overall desalination efficiency. More problematic is that, in a static state, the salt in the seawater cannot disperse in time and easily deposits and solidifies on the heating surface, eventually forming large salt blocks. These salt blocks act like an insulating layer, severely hindering the effective transfer of heat to the seawater and further reducing evaporation efficiency. Over time, the accumulation of salt can damage the internal structure of the equipment, affecting its normal operation and lifespan. In addition, traditional equipment relies excessively on a single solar heat source for heating. While the equipment can operate normally during the day when there is sufficient sunlight, it cannot continue to work due to insufficient heat supply, especially on cloudy days or in the evening, resulting in a significant drop in efficiency. Although some equipment attempts to introduce auxiliary heating devices to solve this problem, these devices are often complex in structure, which not only increases the manufacturing cost and maintenance difficulty of the equipment but also consumes a lot of energy, which runs counter to the original intention of energy conservation and environmental protection of solar desalination technology. Summary of the Invention

[0004] The purpose of this invention is to provide a solar-powered seawater desalination device and its usage method to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a solar-powered seawater desalination device and its usage method, comprising:

[0006] The base plate has a worktable on its upper surface and a distillation mechanism on its upper surface. The distillation mechanism includes a cylinder assembly and a heating assembly. The cylinder assembly includes a support column on the upper surface of the base plate, a water receiving frame on its upper surface, a drain pipe on the bottom surface of the water receiving frame, a limiting ring frame on the upper surface of the worktable, an opening at the center of the limiting ring frame, a thin cylinder inside the opening, one end of the drain pipe connected to one end of the thin cylinder, a wide cylinder at one end of the thin cylinder, and a thin cylinder at the other end of the wide cylinder.

[0007] The heating assembly includes: a bottom heating frame, which is disposed on the upper surface of the workbench, the upper surface of the bottom heating frame is in contact with the bottom surface of the wide section cylinder, the interior of the bottom heating frame is filled with PCM phase change paraffin, and a drying platform frame is disposed on one side surface of the bottom heating frame.

[0008] Furthermore, the outer surfaces of the two thin cylindrical sections are fitted with limiting rings, the bottom surface of the wide cylindrical section is provided with a discharge cover plate, an electric rotating shaft is provided at the connection between the discharge cover plate and the wide cylindrical section, the upper surface of the workbench is provided with a discharge port, the discharge port is located below the discharge cover plate, the bottom surface of the workbench is provided with a storage box, the discharge port is connected to the interior of the storage box, and the upper surface of the base plate is provided with a receiving interface that mates with the storage box.

[0009] Furthermore, a transfer pipe is provided at the end of the wide section of the cylinder that is not connected to the drain pipe. A vertical plate connected to the upper surface of the workbench is provided on the bottom surface of the transfer pipe. Restriction ring grooves are provided on the inner side surface of the transfer pipe and the side surface of the opening at the center of the restriction ring frame. The two restriction ring sleeves are respectively located inside the two restriction ring grooves. An upper air outlet is opened inside the transfer pipe. A steam conveying pipe is provided on the upper surface of the upper air outlet. A water receiving cylinder is provided on the upper surface of the bottom plate. The upper end of the steam conveying pipe communicates with the interior of the water receiving cylinder. A condensation arc plate is provided on the upper surface of the water receiving cylinder.

[0010] Furthermore, a limiting crossbar is provided on the upper surface of the drying platform frame, an upper magnetic plate is provided on the upper surface of the limiting crossbar, a lower magnetic plate is provided on the bottom surface of the limiting crossbar, a slope is provided on the inner bottom surface of the drying platform frame, a flip-up frame is provided on the upper surface of the slope, a shaft is provided at the connection between the flip-up frame and the slope, and a main magnetic plate that cooperates with the upper magnetic plate is provided on one side surface of the flip-up frame.

[0011] Furthermore, a secondary plate is provided on one side surface of the flipping frame, with multiple liquid outlet openings at the center of the secondary plate and a central slot at the center of the secondary plate. A secondary magnetic plate, cooperating with the lower magnetic plate, is also provided on the upper surface of the secondary plate. A telescopic motor is provided on the bottom surface of the bottom heating frame, with a connecting rod at the end of the output shaft of the telescopic motor. A limiting rod is provided on the upper surface of the connecting rod, with sliding wheels at its upper and lower ends. A limiting slide block, cooperating with the limiting rod, is provided on the side surface of the bottom heating frame. A connecting rod is provided on the side surface of the limiting rod, with a connecting torsion spring in the middle section of the connecting rod. A pushing rod is provided at one end of the connecting rod, located inside the bottom heating frame. Both sides of the pushing rod have side cutting blades facing the connecting torsion spring.

[0012] Furthermore, the distillation mechanism also includes a drive assembly, which includes: a protective housing disposed on the upper surface of the base plate, a solar panel disposed on the upper surface of the protective housing, a battery disposed on one side surface of the workbench, and a cable connecting the battery and the solar panel.

[0013] Furthermore, a drive seat is provided on the upper surface of the workbench, and a drive motor is provided on the upper surface of the drive seat. Power transmission cables are respectively provided between the battery and the drive motor and the telescopic motor. A rotating shaft is provided on the output end of the drive motor. Two fixed engagement rings are provided on the surface of the rotating shaft. A fixed engagement ring is also provided on the outer surface of the two thin cylindrical sections. An outer engagement ring is fitted on the outer surface of the fixed engagement ring. A transmission belt is provided between the two transverse outer engagement rings.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. In this solution, a heating component is installed, and PCM phase change paraffin is used as the energy storage medium. Utilizing the cooperative structure of the bottom heating frame and the basking platform frame, during the day, the solid PCM phase change paraffin is pushed to the basking platform frame to be exposed to sunlight and melt through the coordinated action of components such as the telescopic motor and the jacking rod. It then flows back to the bottom heating frame. At night, after the sun sets, the solidified PCM phase change paraffin in the bottom heating frame releases heat to continue heating the wide-section cylinder. This allows the equipment to continue working for a period of time even without sunlight, ensuring complete distillation of the internal seawater and preventing residual seawater from forming solidified salt blocks. This effectively improves the equipment's working efficiency and energy utilization rate, ensuring that the distillation effect of the residual seawater stored inside the equipment is not affected by the loss of the heat source generated by the sun.

[0016] 2. In this design, a cylindrical assembly is incorporated, with a wide section of the cylindrical body connected to the narrow sections at both ends via limiting rings and grooves to achieve a dynamic sealing connection. This ensures the flexibility of the cylindrical assembly's overall rotation under the drive assembly, effectively preventing steam leakage. Furthermore, the rotation of the seawater generates centrifugal motion, increasing the contact area between the water flow and the inner surface of the wide section of the cylindrical body, thus accelerating water evaporation. Simultaneously, the flowing water prevents the formation of large, fixed salt deposits on the inner surface of the wide section of the cylindrical body, avoiding any impact on thermal conductivity, and automatically discharges the evaporated salt, improving the stability and continuity of equipment operation.

[0017] 3. In this solution, a drive assembly is installed. Solar energy is collected by solar panels on the protective shell and converted into electrical energy, which is stored in a battery to power the drive motor and the telescopic motor, achieving energy self-sufficiency. The drive motor drives the rotating shaft to rotate, and through the cooperation of the fixed engagement ring, the outer engagement ring and the transmission belt, the power is simultaneously transmitted to the two narrow sections of the cylinder, driving the wide section of the cylinder to rotate. This keeps the seawater inside in constant motion, which not only allows the seawater to contact the inner surface of the wide section of the cylinder with a larger area, accelerating evaporation, but also effectively prevents salt blocks from solidifying on the inner surface of the equipment, avoiding the problems of decreased thermal conductivity and slowed distillation speed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0020] Figure 3 This is a schematic diagram of the internal rear view structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the wide-section cylindrical body and the narrow-section cylindrical body structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the transfer pipe structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the drive component structure of the present invention;

[0024] Figure 7 This is a schematic diagram of the heating component structure of the present invention;

[0025] Figure 8 This is a schematic diagram of the connecting rod and the jacking rod structure of the present invention;

[0026] Figure 9 This is a schematic diagram of the flip frame and sub-plate structure of the present invention.

[0027] In the diagram: 1. Base plate; 2. Support column; 3. Water receiving frame; 4. Drain pipe; 5. Wide section cylinder; 6. Steam conveying pipe; 7. Condensation arc plate; 8. Water receiving cylinder; 9. Solar panel; 10. Protective outer shell; 11. Socket; 12. Restricting ring frame; 13. Workbench; 14. Bottom heating frame; 15. Rotating shaft; 16. Sun drying platform frame; 17. Transfer pipe; 18. Discharge port; 19. Battery; 20. Storage box; 21. Narrow section cylinder; 22. Restricting ring; 23. Electric rotating shaft; 24. Discharge cover plate; 25. Restricting ring groove; 26. Upper air outlet; 27. Drive motor; 28. Fixed engagement ring; 29. ​​Outer engagement ring; 30. Transmission belt; 31. Restricting crossbar; 32. Upper magnetic plate; 33. Flipping frame; 34. Pushing rod; 35. Restricting slide block; 36. Telescopic motor; 37. Side cutting blade; 38. Connecting rod; 39. Connecting torsion spring; 40. Restricting rod; 41. Sliding wheel; 42. Connecting support rod; 43. Main magnetic plate; 44. Secondary plate; 45. Secondary magnetic plate; 46. Center slot; 47. Liquid outlet. Detailed Implementation

[0028] 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.

[0029] Example 1: Please refer to Figures 1 to 9 A solar-powered seawater desalination device and its usage method, comprising:

[0030] The base plate 1 has a workbench 13 on its upper surface, and a distillation mechanism on its upper surface. The distillation mechanism includes a cylinder assembly and a heating assembly. The cylinder assembly includes a support column 2, which is located on the upper surface of the base plate 1. A water receiving frame 3 is located on the upper surface of the support column 2, and a drain pipe 4 is located on the bottom surface of the water receiving frame 3. A limiting ring frame 12 is located on the upper surface of the workbench 13, with a central opening at the center of the limiting ring frame 12. It has an opening, inside which a narrow cylindrical section 21 is installed. One end of the drain pipe 4 is connected to one end of the narrow cylindrical section 21. A wide cylindrical section 5 is installed at one end of the narrow cylindrical section 21, and a narrow cylindrical section 21 is also installed at the other end of the wide cylindrical section 5. A limiting ring 22 is fitted on the outer surface of the two narrow cylindrical sections 21. A discharge cover plate 24 is installed on the bottom surface of the wide cylindrical section 5. An electric rotating shaft 23 is installed at the connection between the discharge cover plate 24 and the wide cylindrical section 5. The upper surface of the workbench 13... The workbench 13 has a discharge port 18 located below the discharge cover plate 24. The bottom surface of the workbench 13 has a storage box 20. The discharge port 18 is connected to the interior of the storage box 20. The upper surface of the bottom plate 1 has a receiving interface 11 that matches the storage box 20. The end of the wide section cylinder 5 that is not connected to the drain pipe 4 has a transfer pipe 17. The bottom surface of the transfer pipe 17 has a vertical plate that connects to the upper surface of the workbench 13. The inner side surface of the transfer pipe 17 and the side surface of the opening at the center of the limiting ring frame 12 are both provided with limiting ring grooves 25. Two limiting ring sleeves 22 are located inside the two limiting ring grooves 25 respectively. The interior of the transfer pipe 17 has an upper air outlet 26. The upper surface of the upper air outlet 26 has a steam conveying pipe 6. The upper surface of the bottom plate 1 has a water receiving cylinder 8. The upper end of the steam conveying pipe 6 is connected to the interior of the water receiving cylinder 8. The upper surface of the water receiving cylinder 8 has a condensation arc plate 7.

[0031] During use, seawater is pumped in using an external water pump and collected by the water receiving frame 3. It then flows through the drain pipe 4 into the narrow section cylinder 21, and then into the wide section cylinder 5 for evaporation and concentration. The two ends of the wide section cylinder 5 are dynamically sealed to the narrow section cylinders 21 via the engagement of limiting rings 22 and limiting ring grooves 25. This allows the cylinder assembly to rotate as a whole under the drive assembly while preventing steam leakage. The wide section cylinder 5 is made of a material with high thermal conductivity. During daily use, sunlight irradiates the surface of the wide section cylinder 5, causing it to heat up and evaporate the seawater inside. During this process, the drive motor 27 drives the narrow section cylinder 21 to rotate via the transmission belt 30, and simultaneously drives the wide section cylinder 5 to rotate synchronously. This creates centrifugal motion of the seawater inside, allowing the water to contact a larger area with the internal surface of the wide section cylinder 5, accelerating evaporation and preventing salt from accumulating on the internal surface of the wide section cylinder 5. Large, fixed salt blocks are formed on the surface, affecting the thermal conductivity. The generated steam enters the steam conveying pipe 6 through the upper outlet 26 of the transfer pipe 17. When the steam enters the water receiving cylinder 8, it first contacts the condensing arc plate 7 and condenses, eventually forming water droplets that enter the water receiving cylinder 8 for storage. At the same time, the evaporated salt is deposited at the bottom of the wide section cylinder 5 due to gravity. After the equipment has been used for a fixed period of time, it can be determined that the concentration of brine at the bottom of the wide section cylinder 5 is about to reach the threshold. At this time, the electric rotating shaft 23 automatically starts the machine, driving the discharge cover 24 to open. The concentrated brine at the bottom of the wide section cylinder 5 falls into the storage box 20 through the discharge port 18, realizing the automatic discharge of salt. After a period of use, the staff can open the cover at one end of the storage box 20 to discharge the concentrated brine inside into the receiving interface 11. At this time, the staff can clean the concentrated brine inside.

[0032] The heating assembly includes: a bottom heating frame 14, which is disposed on the upper surface of the workbench 13. The upper surface of the bottom heating frame 14 is in contact with the bottom surface of the wide-section cylinder 5. The interior of the bottom heating frame 14 is filled with PCM phase change paraffin wax. A drying platform frame 16 is disposed on one side surface of the bottom heating frame 14. A limiting crossbar 31 is disposed on the upper surface of the drying platform frame 16. An upper magnetic plate 32 is disposed on the upper surface of the limiting crossbar 31. A lower magnetic plate is disposed on the bottom surface of the limiting crossbar 31. A ramp is disposed on the inner bottom surface of the drying platform frame 16. A flipping frame 33 is disposed on the upper surface of the ramp. A shaft is disposed at the connection between the flipping frame 33 and the ramp. A main magnetic plate 43 that cooperates with the upper magnetic plate 32 is disposed on one side surface of the flipping frame 33. A secondary plate 44 is disposed on one side surface of the flipping frame 33. Multiple openings are made at the center of the secondary plate 44. A liquid outlet 47 is provided. A central slot 46 is provided at the center of the sub-plate 44. A sub-magnetic plate 45 that cooperates with the lower magnet plate is also provided on the upper surface of the sub-plate 44. A telescopic motor 36 is provided on the bottom surface of the bottom heating frame 14. A connecting support rod 42 is provided at the end of the output shaft of the telescopic motor 36. A limiting rod 40 is provided on the upper surface of the connecting support rod 42. Sliding wheels 41 are provided at the upper and lower ends of the limiting rod 40. A limiting slide block 35 that cooperates with the limiting rod 40 is provided on the side surface of the bottom heating frame 14. A connecting rod 38 is provided on the side surface of the limiting rod 40. A connecting torsion spring 39 is provided in the middle section of the connecting rod 38. A pushing rod 34 is provided at one end of the connecting rod 38. The pushing rod 34 is located inside the bottom heating frame 14. Both sides of the pushing rod 34 are provided with side cutting blades 37 facing the connecting torsion spring 39.

[0033] The heating element allows the equipment to continue operating for a period of time after the sun's rays have faded, thus improving work efficiency. Under normal conditions, the PCM phase change paraffin wax remains fixed in a block shape inside the bottom heating frame 14. During daytime use, the telescopic motor 36 drives the limiting rod 40 to slide once inside the limiting slide block 35. This pushes the solid PCM phase change paraffin wax inside the bottom heating frame 14 through the jacking rod 34, allowing it to enter the sun deck frame 16 from inside the bottom heating frame 14. After reaching a certain distance, the connecting torsion spring 39 is pushed by the ramp. The rotating mechanism, triggered by the contact effect, bends the connecting rod 38, pushing the PCM phase change paraffin onto the slope. In its normal state, the sub-plate 44 on the side surface of the flipping frame 33 is in contact with the slope surface. After the pushing rod 34 pushes the PCM phase change paraffin a certain distance, the flipping frame 33 rotates 90 degrees with the shaft, changing its position so that it is in contact with the slope surface. At this time, the sub-magnetic plate 45 is attracted to the lower magnet plate of the limiting crossbar 31 for a certain degree of fixation. Subsequently, the telescopic motor 36 extends and resets, driving the pushing rod 34 out of the PCM phase change paraffin. During the retraction process, the pushing rod... The side cutting edges 37 on both sides of the rod 34 cut through the PCM phase change wax, allowing the jacking rod 34 to exit smoothly and be pulled back into the bottom heating frame 14 from the center slot 46 for resetting. At this point, only the PCM phase change wax remains inside the drying platform frame 16. During normal use, the solidified PCM phase change wax inside the drying platform frame 16 is exposed to sunlight and melts back into liquid, flowing down from the liquid outlet 47 on the surface of the sub-plate 44 and back into the bottom heating frame 14. This process continues until all the PCM phase change wax has turned into liquid and returned to the bottom heating frame 14. Because the secondary plate 44 is heavier than the flipping frame 33, the flipping frame 33 rotates again with the shaft to reset. At this time, the main magnetic plate 43 is attracted and fixed to the limiting crossbar 31. When the sun sets and the surface of the wide section cylinder 5 loses sunlight and cannot carry out distillation, the PCM phase change paraffin inside the bottom heating frame 14 gradually solidifies and releases heat, continuing to heat the wide section cylinder 5 for a period of time, so that the seawater inside that has not yet been distilled can be processed, so that there will be no residual seawater inside due to the loss of sunlight, thus causing solidified salt blocks to form inside the wide section cylinder 5.

[0034] The distillation mechanism also includes a drive assembly, which includes: a protective housing 10, which is disposed on the upper surface of the base plate 1, and a solar panel 9 is disposed on the upper surface of the protective housing 10; a storage battery 19 is disposed on one side surface of the workbench 13, and a cable is connected between the storage battery 19 and the solar panel 9; a drive seat is also disposed on the upper surface of the workbench 13, and a drive motor 27 is disposed on the upper surface of the drive seat; power transmission cables are respectively disposed between the storage battery 19, the drive motor 27, and the telescopic motor 36; a rotating shaft 15 is disposed on the output end of the drive motor 27; two fixed engagement rings 28 are disposed on the surface of the rotating shaft 15; a fixed engagement ring 28 is also disposed on the outer surface of the two thin cylindrical bodies 21; an outer engagement ring 29 is sleeved on the outer surface of the fixed engagement ring 28; and a transmission belt 30 is disposed between the two outer engagement rings 29 in the transverse direction.

[0035] The drive assembly is used to rotate the wide-section cylinder 5, ensuring that the seawater inside remains in motion during distillation. This allows the seawater to contact the inner surface of the wide-section cylinder 5 with a larger surface area, enabling faster evaporation. The constant movement of the seawater effectively prevents salt from solidifying on the inner surface of the equipment, thus preventing a decrease in thermal conductivity and a slowdown in distillation speed. During operation, the drive motor 27 is powered by electricity converted from solar panels 9 via the battery 19, which in turn drives the rotating shaft 15. The rotation of the shaft 15 causes the fixed engagement ring 28 on its surface to rotate synchronously, and also causes the outer engagement ring 29 on its outer surface to rotate. Power is transmitted via the transmission belt 30 to the fixed engagement rings 28 on the outer surfaces of the two narrow-section cylinders 21, allowing the wide-section cylinder 5 to rotate. This ensures more even heat distribution from the sun and the heating components, thereby improving the distillation efficiency of the equipment.

[0036] The working principle of this invention is:

[0037] In use, the cylinder assembly, heating assembly, and drive assembly work together to achieve efficient distillation and automatic salt separation. During operation, an external water pump injects seawater into the receiving frame 3, which flows into the narrow cylinder 21 through the drain pipe 4, and then into the wide cylinder 5. The two ends of the wide cylinder 5 are connected to the narrow cylinder 21 by the cooperation of the limiting ring sleeve 22 and the limiting ring groove 25, which allows the whole to rotate while preventing steam leakage. After the drive motor 27 is started, it drives the surface fixed engagement ring 28 to rotate through the rotating shaft 15, which in turn drives the outer engagement ring 29 to be linked with the transmission belt 30, so that the two narrow cylinders 21 rotate synchronously, and finally drive the wide cylinder 5 to rotate. Under the centrifugal force, the seawater forms a thin layer of water flow, which increases the contact area with the inner wall of the wide cylinder 5, accelerates evaporation, and at the same time prevents the salt from solidifying into lumps and affecting heat conduction.

[0038] The steam generated by evaporation enters the steam delivery pipe 6 through the upper air outlet 26 of the transfer pipe 17, and condenses upon contact with the condensing arc plate 7 inside the water receiving cylinder 8 to form fresh water storage. The salt is deposited at the bottom of the wide section cylinder 5 due to gravity. When the concentration reaches the threshold, the electric rotating shaft 23 drives the discharge cover 24 to open, and the brine falls into the storage box 20 through the discharge port 18. It can be cleaned periodically.

[0039] The heating component utilizes the energy storage characteristics of PCM phase change paraffin to extend the working time: During the day, the telescopic motor 36 pushes the top rod 34 to push the solid PCM paraffin into the drying platform frame 16. After melting under the sun, it flows back to the bottom heating frame 14. At night, the solid PCM paraffin releases the stored heat to continuously heat the wide-section cylinder 5, ensuring that the distillation process is uninterrupted. The solar panel 9 converts light energy into electrical energy and stores it in the battery 19 to power the drive motor 27 and the telescopic motor 36, achieving energy self-sufficiency. This equipment significantly improves the efficiency and stability of seawater desalination through rotational centrifugation, dynamic sealing, and phase change energy storage technology.

[0040] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A solar sea water desalination apparatus, characterized by, Include: The upper surface of the bottom plate is also provided with a workbench body, and the upper surface of the workbench body is also provided with a distillation mechanism, and the distillation mechanism comprises a cylinder assembly and a heating assembly, and the cylinder assembly comprises: a supporting column, which is arranged on the upper surface of the bottom plate, and the upper surface of the supporting column is provided with a water receiving frame, and the bottom surface of the water receiving frame is provided with a drain pipe, and the upper surface of the workbench body is provided with a limiting ring holder, and the center of the limiting ring holder is provided with an opening, and the inside of the opening is provided with a thin section cylinder, and one end of the drain pipe is connected with one end of the thin section cylinder, and one end of the thin section cylinder is provided with a wide section cylinder, and the other end of the wide section cylinder is also provided with a thin section cylinder; The heating assembly comprises: a bottom heating frame, which is arranged on the upper surface of the workbench body, and the upper surface of the bottom heating frame is attached to the bottom surface of the wide section cylinder, and the inside of the bottom heating frame is filled with PCM phase change paraffin, and one side surface of the bottom heating frame is provided with a sunning table frame.

2. A solar sea water desalination apparatus as claimed in claim 1, wherein: The outer surface of the two thin section cylinders is sleeved with a limiting ring sleeve, the bottom surface of the wide section cylinder is provided with a discharge cover plate, the connection between the discharge cover plate and the wide section cylinder is provided with an electric rotating shaft, the upper surface of the workbench body is provided with a discharge port, the discharge port is located below the discharge cover plate, the bottom surface of the workbench body is provided with a storage box body, the discharge port is in communication with the inside of the storage box body, and the upper surface of the bottom plate is provided with a receiving port matched with the storage box body.

3. A solar seawater desalination apparatus according to claim 2, characterised in that: The end of the wide section cylinder not connected with the drain pipe is provided with an adapter pipe, the bottom surface of the adapter pipe is provided with a vertical plate connected with the upper surface of the workbench body, the inside side surface of the adapter pipe and the side surface of the opening in the center of the limiting ring holder are both provided with a limiting ring groove, the two limiting ring sleeves are respectively located in the inside of the two limiting ring grooves, the inside of the adapter pipe is provided with an upper air outlet, the upper surface of the upper air outlet is provided with a steam conveying pipe, the upper surface of the bottom plate is provided with a water receiving cylinder, the upper end of the steam conveying pipe is in communication with the inside of the water receiving cylinder, and the upper surface of the water receiving cylinder is provided with a condensing arc plate.

4. A solar sea water desalination apparatus as claimed in claim 1, wherein: The upper surface of the sunning table frame is provided with a limiting cross bar, the upper surface of the limiting cross bar is provided with an upper magnetic plate, the bottom surface of the limiting cross bar is provided with a lower magnetic plate, the inside bottom surface of the sunning table frame is provided with an inclined slope, the upper surface of the inclined slope is provided with a turnover frame, the connection between the turnover frame and the inclined slope is provided with a shaft body, and one side surface of the turnover frame is provided with a main magnetic plate matched with the upper magnetic plate.

5. A solar seawater desalination apparatus as claimed in claim 4, wherein: The side surface of the turnover frame body is provided with a secondary plate body, a plurality of liquid outlet openings are formed in the center of the secondary plate body, a center slot is arranged in the center of the secondary plate body, and a secondary magnetic plate matched with the lower magnetic plate is arranged on the upper surface of the secondary plate body; the bottom surface of the bottom heating frame body is provided with a telescopic motor, the output shaft end of the telescopic motor is provided with a connecting strut, the upper surface of the connecting strut is provided with a limiting rod body, and the upper and lower ends of the limiting rod body are respectively provided with sliding wheels; the side surface of the bottom heating frame body is provided with a limiting sliding block matched with the limiting rod body, the side surface of the limiting rod body is provided with a connecting rod body, the middle section of the connecting rod body is provided with a connecting torsion spring, and one end of the connecting rod body is provided with a jacking rod body; the jacking rod body is located in the inside of the bottom heating frame body, and the two side surfaces of the jacking rod body are both provided with side cutting edges facing the connecting torsion spring.

6. A solar sea water desalination apparatus as claimed in claim 1, wherein: The distillation mechanism further comprises a driving assembly, which comprises a protective shell arranged on the upper surface of the bottom plate, and a solar panel arranged on the upper surface of the protective shell; one side surface of the workbench body is provided with a storage battery, and a cable is connected between the storage battery and the solar panel.

7. A solar seawater desalination apparatus as claimed in claim 6, characterized in that: The upper surface of the workbench body is further provided with a driving seat, and the upper surface of the driving seat is provided with a driving motor; the storage battery is respectively connected with the driving motor and the telescopic motor through power transmission cables; the output end of the driving motor is provided with a rotating shaft body, and the surface of the rotating shaft body is provided with two fixed engagement rings; the outer surfaces of the two thin section cylinders are also respectively provided with a fixed engagement ring; the outer surfaces of the fixed engagement rings are sleeved with outer sleeve engagement rings, and a transmission belt is arranged between the two transverse outer sleeve engagement rings.

8. A method of using a solar seawater desalination apparatus for the solar seawater desalination apparatus of any one of claims 1-7, wherein, The method comprises the following steps: S1: seawater is pumped into the water receiving frame by an external water pump, and the seawater flows into the thin section cylinder through the water outlet pipeline, and then enters the wide section cylinder for evaporation and concentration; S2: the driving motor is started, the fixed engagement ring is driven to rotate through the rotating shaft body, the outer sleeve engagement ring is driven to move in linkage with the transmission belt, the two thin section cylinders are driven to rotate synchronously, and finally the wide section cylinder is driven to rotate; in this process, the seawater forms a thin layer of water flow under the action of centrifugal force, increases the contact area with the inner wall of the wide section cylinder, and accelerates evaporation; at the same time, the flowing seawater prevents the salt from solidifying into blocks on the inner surface of the wide section cylinder, affecting the heat conduction performance; S3: when the sunlight is sufficient during the day, the solar panel converts light energy into electrical energy and stores it in the storage battery to supply power to the driving motor and the telescopic motor; at the same time, the telescopic motor pushes the jacking rod body to push the solid PCM phase change paraffin into the sunning frame body, and after melting under the sun, it flows back to the bottom heating frame body for use at night or when the light is insufficient; S4: the steam generated by evaporation enters the steam conveying pipe through the upper gas outlet of the adapter pipeline, and is condensed by the condensing arc plate in the water receiving cylinder to form fresh water and store it in the water receiving cylinder; at the same time, the salt deposits at the bottom of the wide section cylinder due to gravity. S5: When the concentration of the salt water at the bottom of the wide-section cylinder reaches the preset threshold, the electric rotating shaft drives the discharge cover plate to open, and the salt water falls into the storage box through the discharge port, realizing the automatic discharge of salt, and the workers regularly clean the concentrated salt water in the storage box; S6: At night or when the light is insufficient, the solid PCM phase change paraffin in the bottom heating frame releases the stored heat, continuously heating the wide-section cylinder, ensuring that the distillation process is uninterrupted until the internal seawater is completely distilled.

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