A seawater desalination device and its processing technology

Abstract

This application relates to a seawater desalination device and its processing technology, comprising a frame with an inclined support plate on the frame. A receiving cavity and a connecting groove are respectively formed on both sides of the inclined support plate. An inlet pipe extends to the top of the receiving cavity. Multiple sets of desalination devices are mounted on the support plate. Each device includes a heat collection tube, with both ends connected to the receiving cavity and the connecting groove. An inlet pipe is connected to the frame to guide seawater into the connecting groove. A reflector is mounted on the support plate near the heat collection tube, the reflector being arc-shaped and located outside the heat collection tube. A ventilation pipe is fixedly connected inside the heat collection tube, with one end extending out of the receiving cavity and the other end extending into the connecting groove, i.e., the ventilation pipe passes through the inside of the heat collection tube. A crystallization rope made of porous fiber is installed inside the heat collection tube. This application has the effect of reducing energy consumption and lowering costs in seawater desalination.

Description

Technical Field

[0001] This application relates to the field of seawater desalination technology, and in particular to a seawater desalination treatment device and its processing technology. Background Technology

[0002] With the continuous growth of the global population and the ongoing economic development, the demand for freshwater resources is increasing daily. However, freshwater resources account for only a very small proportion of the total water resources on Earth, and their distribution is extremely uneven, with many regions facing severe freshwater shortages. Meanwhile, oceans cover approximately 71% of the Earth's surface and contain extremely abundant seawater resources. Effectively converting seawater into usable freshwater would undoubtedly greatly alleviate the global freshwater supply shortage and is of vital importance for ensuring water supply for human life, industry, and agricultural irrigation.

[0003] Traditional multistage flash (MSF) technology is a widely used method in thermal seawater desalination. It involves heating seawater to a certain temperature and then rapidly evaporating it in multiple flash chambers with progressively decreasing pressures. The water vapor is then condensed to obtain fresh water. However, this technology has significant drawbacks. It requires a large amount of thermal energy to maintain the seawater heating process, typically using steam or electric heating. This not only results in high energy consumption and production costs but also fails to meet the requirements for low-energy production.

[0004] Therefore, designing a seawater desalination device that reduces energy consumption and costs is an urgent problem to be solved. Summary of the Invention

[0005] In order to design a seawater desalination device that reduces energy consumption and lowers costs, this application provides a seawater desalination device and its processing technology.

[0006] The seawater desalination process provided in this application adopts the following technical solution:

[0007] A seawater desalination device includes a frame with an inclined support plate. A receiving cavity and a connecting groove are respectively formed on both sides of the inclined support plate. An inlet pipe extends to the top of the receiving cavity. Multiple desalination devices are mounted on the support plate. Each device includes a heat collection tube, with both ends connected to the receiving cavity and the connecting groove. An inlet pipe is connected to the frame to guide seawater into the connecting groove. A reflector is mounted on the support plate near the heat collection tube, and the reflector is arc-shaped and located outside the heat collection tube. A ventilation pipe is fixedly connected inside the heat collection tube, with one end extending out of the receiving cavity and the other end extending into the connecting groove, meaning the ventilation pipe passes through the inside of the heat collection tube. A crystallized rope made of porous fibers is installed inside the heat collection tube.

[0008] By adopting the above technical solution, when the user operates the system, seawater is introduced into the heat collection tube. The reflector reflects and concentrates the scattered sunlight onto the heat collection tube, increasing the heat collection area. Simultaneously, it can adjust the direction of the light to further increase the heat collection area and improve the heat collection efficiency, causing the heat collection tube to heat up rapidly. This heats the seawater flowing through the tube. As the seawater heats, the water gradually evaporates. When the seawater is heated to its boiling point (approximately 100°C), the water gains sufficient kinetic energy to overcome surface tension, changing from a liquid to a gaseous state to form water vapor. The water vapor is then adsorbed onto the preheating tube. On the outer wall, air passes through the ventilation duct. Since the air temperature is much lower than that of the heated seawater, water vapor exchanges heat with the low-temperature medium, the air. When the steam temperature drops below the dew point, it re-liquefies to form fresh water. At the same time, the concentration of salts in the seawater continuously increases. When the salt concentration reaches a supersaturated state, the solute crystallizes out of the solution. The crystalline rope, made of porous material, is hydrophilic inside and hydrophobic on the surface. When immersed in salt water, water is adsorbed into the inside of the rope through capillary action. Then the water evaporates, leaving the salt, thus achieving large-scale desalination of seawater and separating fresh water from the seawater.

[0009] Optionally, a preheating pipe is fixedly connected inside the heat collection pipe. One end of the preheating pipe extends to the top of the frame and communicates with the water inlet pipe, while the other end extends into the connecting groove. The preheating pipe is located near the top wall of the heat collection pipe.

[0010] By adopting the above technical solution, when the user uses the heat from the side wall of the heat collection tube, the heat heats the seawater flowing through the preheating tube, increasing the temperature of the seawater entering the heating tube, which further facilitates the heating and evaporation of the seawater for desalination, thus improving the efficiency of seawater desalination. In addition, the large amount of water vapor evaporated by heating is adsorbed on the outer wall of the preheating tube. Due to the temperature difference between the seawater and water vapor in the preheating tube, the water vapor on the side wall of the preheating tube condenses into fresh water, realizing the separation of fresh water from seawater, increasing the adhesion surface of water vapor, and further improving the efficiency of seawater desalination.

[0011] Optionally, the frame is fixedly connected to the top of the connecting trough with a feed box for carrying activated carbon particles. The bottom of the feed box is fixedly connected to a discharge pipe that extends to the connecting trough near the connecting pipe.

[0012] By adopting the above technical solution, when the user uses the system, the activated carbon particles enter the collector tube along with the seawater. On the one hand, the main function of the activated carbon particles is to adsorb suspended particles, organic matter, pigments, and odors in the water, thereby improving water quality. Through its porous structure and strong adsorption capacity, the activated carbon particles can effectively remove these impurities from the water, making the water clear and transparent. On the other hand, the activated carbon particles and water mix and flow along the collector tube. The activated carbon particles play a stirring role in the seawater, which facilitates the precipitation of salt from the seawater.

[0013] Optionally, a take-up roller is rotatably connected inside the receiving cavity, and the crystallizing rope is wound around the take-up roller. Two tension rollers are rotatably connected on the side of the frame near the connecting hole. The crystallizing rope is arranged along the length of the frame from the take-up roller and passes around the two tension rollers in sequence. A through hole is opened on the heat collection tube for the crystallizing rope to pass through. After passing around the tension roller, the crystallizing rope passes through the heat collection tube and is tensioned between the take-up roller and the tension roller.

[0014] By adopting the above technical solution, when the user uses the crystallization rope, it is tensioned between the take-up roller and the tension roller. The rotation of the take-up roller can drive the crystallization rope to slide. The crystallization rope passes through the heat collection tube, and the crystals precipitated in the seawater are adsorbed onto the crystallization rope. The crystallization rope is woven from porous fibers. This rope is hydrophilic inside and hydrophobic on the surface. When immersed in salt water, water will be adsorbed into the interior of the rope through capillary action. Then the water evaporates, leaving salt. As the water continues to evaporate, the salt concentration gradually increases, and eventually salt crystals are formed on the rope.

[0015] Optionally, a receiving box is fixedly connected inside the receiving cavity. The receiving box is located below the heat collection tube and is used to collect seawater and activated carbon particles. A collection box is fixedly connected inside the receiving cavity. The collection box has a through hole for the crystallization rope to pass through. Multiple scrapers are fixedly connected inside the collection box. The scrapers have holes for the crystallization rope to pass through.

[0016] By adopting the above technical solution, when the user uses the device, the receiving box is located below the heat collection tube. The receiving box is used to collect the seawater and activated carbon particles flowing out of the heat collection tube, the scraper is used to scrape the salt off the crystallization rope, and the receiving box collects the salt.

[0017] Optionally, the frame is provided with a collecting pipe inside the receiving cavity. A water collecting plate is fixedly connected to the side of the heat collecting pipe near the receiving cavity. The water collecting plate is located below the ventilation pipe and is arc-shaped. The two sides of the water collecting plate are inclined downwards. The two sides of the water collecting plate are fixedly connected to the side wall of the heat collecting pipe. Two water guide pipes are fixedly connected to the side wall of the frame. The water guide pipes extend into the heat collecting pipe and extend to the two sides of the water collecting plate.

[0018] By adopting the above technical solution, when the user uses the device, the distilled water collected on the side wall of the ventilation pipe and the side wall of the preheating pipe flows into the water collection plate, and the distilled water flows into the collection pipe through the water guide pipe and is collected.

[0019] Optionally, a filter box is fixedly connected to the water inlet pipe, and a filter screen is installed inside the filter box.

[0020] By adopting the above technical solution, when users use the filter, it is used to initially filter seawater and remove some suspended solids, silt and other large impurities from the seawater.

[0021] A processing technology for a seawater desalination device includes the following steps:

[0022] S1. Filtration: The inlet pipe introduces seawater into the filter box, which is equipped with a filter screen. The filter screen is used for preliminary filtration of seawater to remove some suspended solids, silt and other large impurities.

[0023] S2. Preheating: Seawater enters the preheating pipe through the inlet pipe, and the heat from the top of the collector pipe heats the seawater, raising its temperature.

[0024] S3. Purification: The activated carbon particles in the feed box enter the collector tube along with the seawater. The main function of the activated carbon particles is to adsorb suspended particles, organic matter, pigments and odors in the water, thereby improving the water quality. Through its porous structure and strong adsorption capacity, the activated carbon particles can effectively remove these impurities in the water, making the water clear and transparent.

[0025] S4. Heating and evaporating water vapor: The reflector reflects and concentrates the scattered sunlight onto the heat collection tube, causing the heat collection tube to heat up rapidly. This heats the seawater flowing through the heat collection tube, causing the water in the seawater to gradually evaporate, while the concentration of salts continuously increases.

[0026] S5. Condensation of Fresh Water: Seawater is heated to a liquid state and then turns into a gaseous state to form water vapor. The water vapor is adsorbed on the outer wall of the preheating pipe and the outer wall of the ventilation pipe. Air passes through the ventilation pipe. Since the temperature of the air is much lower than that of the heated seawater, the water vapor exchanges heat with the low-temperature medium air. When the temperature of the steam drops below the dew point, it re-liquefies to form fresh water. The fresh water flows down along the ventilation pipe. Similarly, a temperature difference is formed between the seawater temperature and the water vapor in the preheating pipe, causing the water vapor on the side wall of the preheating pipe to condense into fresh water, thus achieving the separation of fresh water from seawater. Then, the distilled water collected on the side wall of the ventilation pipe and the side wall of the preheating pipe flows into the water collection plate and is collected in the collection pipe through the water guide pipe.

[0027] S6. Crystal precipitation: The crystallization rope passes through the heat collection tube and is tensioned between the take-up roller and the tension roller. The rotation of the take-up roller causes the crystallization rope to slide and pass through the heat collection tube. Crystals precipitated in the seawater are adsorbed onto the crystallization rope. As the water evaporates, the salt concentration gradually increases, eventually forming salt crystals on the rope. After a period of time, the take-up roller is rotated, and the crystallization rope passes through the scraper. The scraper scrapes the salt off the crystallization rope, and the receiving box collects the salt. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0029] Figure 2 This is a cross-sectional view of an embodiment of this application;

[0030] Figure 3 This is a sectional view made in this application to highlight the positional relationship between the connecting pipe, the feeding pipe, and the connecting groove;

[0031] Figure 4 yes Figure 3 Enlarged view of part A;

[0032] Figure 5 This is a sectional view created to highlight the positional relationship between the water guide pipe and the water collecting plate.

[0033] Explanation of reference numerals in the attached drawings: 1. Frame; 11. Support plate; 12. Water inlet pipe; 13. Filter box; 14. Receiving cavity; 15. Connecting groove; 2. Processing device; 21. Heat collection pipe; 211. Through hole; 22. Preheating pipe; 23. Connecting pipe; 24. Reflector; 25. Feed box; 251. Discharge pipe; 26. Ventilation pipe; 261. Air guide plate; 27. Collection pipe; 271. Water guide pipe; 272. Water collection plate; 28. Rewinding roller; 281. Crystallizing rope; 282. Tensioning roller; 283. Receiving box; 29. ​​Collection box; 291. Scraper. Detailed Implementation

[0034] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0035] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0037] Example 1:

[0038] This application discloses a seawater desalination device, referring to... Figure 1 The system includes a frame 1, on which a support plate 11 is mounted. The support plate 11 is mounted at an incline on the frame 1 and is mounted at an incline upward. Multiple sets of desalination devices 2 are mounted on the support plate 11. The desalination devices 2 are evenly distributed along the length of the support plate 11, and each desalination device 2 is mounted along the incline of the support plate 11.

[0039] Reference Figure 2 A water inlet pipe 12 is provided at the bottom of the support plate 11, and the water inlet pipe 12 is arranged along the length direction of the support plate 11. A filter box 13 is fixedly connected to the water inlet pipe 12. A filter screen is provided inside the filter box 13. The filter screen is used to perform preliminary filtration of seawater to remove some suspended solids, silt and other large impurities from the seawater. A receiving cavity 14 and a connecting groove 15 are respectively opened on the inclined sides of the support plate 11. The water inlet pipe 12 extends to the top of the receiving cavity 14 and is arranged along the length direction of the receiving cavity 14.

[0040] The processing device 2 includes a solar collector tube 21, which is arranged along the inclined direction of the support plate 11. The solar collector tube 21 is used to absorb solar energy. The outer wall of the solar collector tube 21 is coated with a heat-absorbing coating, which can efficiently absorb solar radiation energy and convert it into heat energy. A preheating tube 22 is fixedly connected inside the solar collector tube 21. One end of the preheating tube 22 extends to the top of the frame 1 and is fixedly connected to the water inlet pipe 12, and the preheating tube 22 communicates with the water inlet pipe 12. The other end extends into the connecting groove 15. Heat pipe 22 is located near the top wall of heat collector pipe 21. The heat from the side wall of heat collector pipe 21 heats the seawater flowing through preheating pipe 22, raising the seawater temperature. A connecting pipe 23 is fixedly connected inside the connecting groove 15, which connects and fixes the connecting groove 15 and heat collector pipe 21. Seawater enters the preheating pipe 22 through inlet pipe 12 for heating. The heated seawater flows into the connecting groove 15, and the preheated seawater in the connecting groove 15 flows into heat collector pipe 21 through connecting pipe 23.

[0041] A reflector 24 is installed on the side of the support plate 11 near the collector tube 21. The reflector 24 is arc-shaped and located outside the collector tube 21. It reflects and concentrates scattered sunlight onto the collector tube 21, increasing the heat collection area and adjusting the direction of light to improve its efficiency. This allows the collector tube 21 to heat up rapidly, heating the seawater flowing through it. As the seawater heats up, the water gradually evaporates, while the salt concentration increases. When the salt concentration reaches supersaturation, the solute crystallizes out of the solution. The reflector 24 is coated with a silver mirror layer with extremely high reflectivity, maximizing the reflection of sunlight. In the solar energy collection system, this high-reflectivity silver mirror layer ensures that more sunlight is reflected onto the collector tube 21, thereby improving the photoelectric conversion efficiency and the heating efficiency of the collector tube 21.

[0042] Reference Figure 3 and Figure 4 To purify seawater, a feed box 25 is fixedly connected to the top of the connecting trough 15 of the frame 1. The feed box 25 is used to carry activated carbon particles, and a discharge pipe 251 is fixedly connected to the bottom of the feed box 25. The discharge pipe 251 extends into the connecting trough 15, and the bottom of the discharge pipe 251 is located in the connecting trough 15 near the connecting pipe 23, so that the activated carbon particles and seawater enter the collector tube 21 together. On the one hand, the main function of activated carbon particles includes adsorbing suspended particles, organic matter, pigments and odors in the water, thereby improving water quality. Activated carbon particles can effectively remove these impurities in the water through their porous structure and strong adsorption capacity, making the water clear and transparent. On the other hand, the activated carbon particles and water mix and flow along the collector tube 21. The activated carbon particles play a stirring role in the seawater, which facilitates the precipitation of salt in the seawater.

[0043] A ventilation pipe 26 is fixedly connected inside the heat collection tube 21. One end of the ventilation pipe 26 extends out of the receiving cavity 14, and the other end extends out of the connecting groove 15. That is, the ventilation pipe 26 passes through the inside of the heat collection tube 21 and is located between the preheating tube 22 and the inner wall of the heat collection tube 21. When the seawater is heated to the boiling point of water (about 100°C), the water gains enough kinetic energy to overcome the surface tension and changes from liquid to gas to form water vapor. The water vapor is adsorbed on the outer wall of the preheating tube 22 and the outer wall of the ventilation pipe 26. Air passes through the ventilation pipe 26. Since the temperature of the air is much lower than that of the heated seawater, the water vapor exchanges heat with the low-temperature medium air. When the temperature of the steam drops below the dew point, it re-liquefies to form fresh water. The fresh water flows down along the ventilation pipe 26. Similarly, a temperature difference is formed between the seawater temperature and the water vapor in the preheating tube 22, causing the water vapor on the side wall of the preheating tube 22 to condense into fresh water, thus realizing the separation of fresh water from seawater. The frame 1 is provided with two air guide plates 261 on the side wall of the receiving cavity 14. The air guide plates 261 are inclined outward. The guide plates can guide the air into the ventilation duct 26, which can increase the air flow in the ventilation duct 26 and improve the condensation effect of water vapor outside the ventilation duct 26.

[0044] Reference Figure 3 and Figure 5 The frame 1 is located inside the receiving cavity 14 and is equipped with a collection pipe 27. A water collection plate 272 is fixedly connected to the side of the heat collection pipe 21 near the receiving cavity 14. The water collection plate 272 is located below the ventilation pipe 26. The two sides of the water collection plate 272 are fixedly connected to the side wall of the heat collection pipe 21. Two water guide pipes 271 are fixedly connected to the side wall of the frame 1. The water guide pipes 271 extend into the heat collection pipe 21. The water collection plate 272 is arc-shaped and the two sides of the water collection plate 272 are inclined downward. The water guide pipes 271 extend to the two sides of the water collection plate 272. The distilled water collected on the side wall of the ventilation pipe 26 and the side wall of the preheating pipe 22 flows into the water collection plate 272 and is collected in the collection pipe 27 through the water guide pipes 271.

[0045] To facilitate the collection of salt precipitated from seawater, a take-up roller 28 is rotatably connected inside the receiving cavity 14. Multiple crystallization ropes 281 are wound on the take-up roller 28. Two tension rollers 282 are rotatably connected to the side of the frame 1 near the connecting hole 211. The crystallization ropes 281 are arranged along the length of the frame 1 from the take-up roller 28, and sequentially pass over the two tension rollers 282. A through hole 211 is provided on the heat collection tube 21 for the crystallization ropes 281 to pass through. After passing through the collector tube 21, the crystallizing rope 281 is tensioned between the take-up roller 28 and the tension roller 282. The rotation of the take-up roller 28 causes the crystallizing rope 281 to slide, passing through the collector tube 21. Crystals precipitated from the seawater are adsorbed onto the crystallizing rope 281. The crystallizing rope 281 is woven from porous fibers. This type of rope is hydrophilic inside and hydrophobic on the surface. When immersed in salt water, water is adsorbed into the interior of the rope through capillary action. Then, the water evaporates, leaving salt. As the water continues to evaporate, the salt concentration gradually increases, eventually forming salt crystals on the rope.

[0046] A receiving box 283 is fixedly connected inside the receiving cavity 14. The receiving box 283 is located below the heat collection tube 21. The collecting box 29 is used to collect seawater and activated carbon particles flowing out of the heat collection tube 21. The collecting box 29 has a through hole for the crystallization rope 281 to pass through. Multiple scrapers 291 are fixedly connected inside the collecting box 29. The scrapers 291 have holes for the crystallization rope 281 to pass through. The scrapers 291 scrape the salt off the crystallization rope 281, and the receiving box 283 collects the salt.

[0047] Example 2:

[0048] The processing technology of the seawater desalination device according to Embodiment 2 of this application, which applies the seawater desalination device of Embodiment 1, includes the following steps:

[0049] S1. Filtration: The inlet pipe 12 introduces seawater into the filter box 13. The filter box 13 is equipped with a filter screen, which is used to perform preliminary filtration of the seawater and remove some suspended solids, silt and other large impurities from the seawater.

[0050] S2. Preheating: Seawater enters the preheating pipe 22 through the inlet pipe 12. The heat from the top of the heat collection pipe 21 heats the seawater and increases its temperature.

[0051] S3. Purification: The activated carbon particles in the feed box 25 enter the heat collection tube 21 along with the seawater. The main function of the activated carbon particles is to adsorb suspended particles, organic matter, pigments and odors in the water, thereby improving the water quality. Through its porous structure and strong adsorption capacity, the activated carbon particles can effectively remove these impurities from the water, making the water clear and transparent.

[0052] S4. Heating and evaporating water vapor: The reflector 24 reflects and concentrates the scattered sunlight onto the heat collection tube 21, causing the heat collection tube 21 to heat up rapidly and heat the seawater flowing through the heat collection tube 21. By heating the seawater, the water in the seawater gradually evaporates, while the concentration of salts continuously increases.

[0053] S5. Condensation of Fresh Water: Seawater is heated to a liquid state and then turns into a gaseous state to form water vapor. The water vapor is adsorbed on the outer wall of the preheating pipe 22 and the outer wall of the ventilation pipe 26. Air passes through the ventilation pipe 26. Since the temperature of the air is much lower than that of the heated seawater, the water vapor exchanges heat with the low-temperature medium air. When the temperature of the steam drops below the dew point, it re-liquefies to form fresh water. The fresh water flows down along the ventilation pipe 26. Similarly, a temperature difference is formed between the seawater temperature and the water vapor in the preheating pipe 22, causing the water vapor on the side wall of the preheating pipe 22 to condense into fresh water, thus achieving the separation of fresh water from the seawater. Then, the distilled water collected on the side wall of the ventilation pipe 26 and the side wall of the preheating pipe 22 flows into the water collection plate 272. The distilled water flows into the collection pipe 27 through the water guide pipe 271 and is collected.

[0054] S6. Crystal precipitation: The crystallization rope 281 passes through the heat collection tube 21 and is tensioned between the take-up roller 28 and the tension roller 282. The rotation of the take-up roller 28 can drive the crystallization rope 281 to slide. The crystallization rope 281 passes through the heat collection tube 21, and the crystals precipitated in the seawater are adsorbed on the crystallization rope 281. As the water evaporates continuously, the salt concentration gradually increases, and eventually salt crystals are formed on the rope. After a period of time, the take-up roller 28 is rotated, and the crystallization rope 281 passes through the scraper 291. The scraper 291 scrapes the salt off the crystallization rope 281, and the receiving box 283 collects the salt.

[0055] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sea water desalination treatment apparatus, characterized by: The utility model provides a kind of seawater desalination device, including rack (1), rack (1) is provided with support plate (11) of inclined arrangement, support plate (11) is inclined and is separately provided with accommodating cavity (14) and communication groove (15) in two sides, water inlet pipe (12) extends to the top of accommodating cavity (14), support plate (11) is provided with multiple groups of processing device (2) for carrying out desalination treatment to seawater;The processing device (2) includes heat collector pipe (21), both ends of heat collector pipe (21) are communicated with accommodating cavity (14) and communication groove (15) respectively, rack (1) is connected with water inlet pipe (12) for guiding seawater into communication groove (15), support plate (11) is provided with reflector (24) on the side of support plate (11) close to heat collector pipe (21), reflector (24) is arranged in arc, reflector (24) is located outside heat collector pipe (21), heat collector pipe (21) is fixedly connected with a ventilation pipe (26) in, ventilation pipe (26) one end extends out accommodating cavity (14), the other end extends out communication groove (15), i. The ventilation pipe (26) passes through from the inside of heat collector pipe (21), heat collector pipe (21) is provided with crystalline rope (281) woven by porous fiber; Accommodating cavity (14) is rotatably connected with a winding roller (28) in, crystalline rope (281) is wound on winding roller (28), rack (1) is rotatably connected with two tensioning rollers (282) on the side close to communication hole (211), crystalline rope (281) is arranged along the length direction of rack (1) from winding roller (28), crystalline rope (281) passes two tensioning rollers (282) in turn, heat collector pipe (21) is provided with through hole (211) for passing through crystalline rope (281), crystalline rope (281) passes through heat collector pipe (21) after passing through two tensioning rollers (282), crystalline rope (281) is tensioned between winding roller (28) and tensioning roller (282); 2. A device for desalination of seawater according to claim 1, characterized in that: Accommodating cavity (14) is fixedly connected with receiving box (283) in, receiving box (283) is located below heat collector pipe (21), receiving box (283) is used for collecting seawater and activated carbon particles, accommodating cavity (14) is fixedly connected with collecting box (29) in, collecting box (29) is provided with through hole for passing through crystalline rope (281), collecting box (29) is fixedly connected with multiple scrapers (291) in, scraper (291) is provided with hole for passing through crystalline rope (281).

3. A device for desalination of seawater according to claim 2, characterized in that: Heat collector pipe (21) is fixedly connected with preheating pipe (22) in, preheating pipe (22) one end extends to the top of rack (1) and is communicated with water inlet pipe (12) in, the other end extends into communication groove (15), preheating pipe (22) is located at the position of heat collector pipe (21) close to top wall. Rack (1) is fixedly connected with feeding box (25) on the top of communication groove (15), feeding box (25) is used for carrying activated carbon particles, the bottom of feeding box (25) is fixedly connected with discharge pipe (251), discharge pipe (251) extends to the position of communication groove (15) close to connecting pipe (23).

4. A device for desalination of sea water as claimed in claim 3 wherein: The rack (1) is provided with a collecting pipe (27) in the containing cavity (14), the heat collecting pipe (21) is fixedly connected with a water collecting plate (272) near one side of the containing cavity (14), the water collecting plate (272) is below the ventilation pipe (26), the water collecting plate (272) is arranged in an arc shape, the two sides of the water collecting plate (272) are inclined downward, the two sides of the water collecting plate (272) and the side wall of the heat collecting pipe (21) are fixedly connected, the side wall of the rack (1) is fixedly connected with two water guide pipes (271), one end of the water guide pipe (271) is fixedly connected with the collecting pipe (27), and the other end extends into the heat collecting pipe (21) to the two sides of the water collecting plate (272).

5. A device for desalination of sea water as claimed in claim 4 wherein: The water inlet pipe (12) is fixedly connected with a filter box (13), and the filter box (13) is provided with a filter screen.

6. A processing technology of a seawater desalination treatment device, applied to the seawater desalination treatment device of claim 5, characterized in that: The method comprises the following steps: S1, filtering: the water inlet pipe (12) guides seawater into the filter box (13), the filter box (13) is provided with a filter screen, the filter screen is used for preliminarily filtering seawater, and removes some suspended matters and large impurities in the seawater; S2, preheating: the seawater enters the preheating pipe (22) through the water inlet pipe (12), and the heat at the top of the heat collecting pipe (21) heats the seawater, so that the temperature of the seawater is increased; S3, purification: activated carbon particles in the feed box (25) with seawater into the heat pipe (21), the main role of activated carbon particles include adsorption of suspended particles in water, organic matter, color and odor pollutants, so as to improve water quality, activated carbon particles through its porous structure and strong adsorption capacity, can effectively remove these impurities in water, so that the water becomes clear and transparent; S4, heating and evaporation of water vapor: the reflecting plate (24) reflects and concentrates the scattered sunlight on the heat pipe (21), so that the heat pipe (21) is rapidly heated, and the seawater flowing through the heat pipe (21) is heated. By heating the seawater, the water in the seawater gradually evaporates, and the concentration of salt increases; S5, condensation of fresh water: seawater is heated to liquid to form water vapor, water vapor is adsorbed on the outer wall of the preheating pipe (22) and the outer wall of the ventilation pipe (26), air passes through the ventilation pipe (26), because the temperature of the air is much lower than that of the heated seawater, the water vapor exchanges heat with the low temperature medium air, when the steam temperature drops below the dew point, the fresh water is formed, the fresh water flows out along the ventilation pipe (26), and the fresh water is collected on the water collecting plate (272), the distilled water flows into the collection pipe (27) through the water guide pipe (271); S6, crystal separation: the crystallization rope (281) passes through the heat pipe (21), the crystallization rope (281) is tensioned between the winding roller (28) and the tensioning roller (282), the winding roller (28) rotates to drive the crystallization rope (281) to slide, the crystallization rope (281) passes through the heat pipe (21), the crystals separated from the seawater are adsorbed on the crystallization rope (281), as the water evaporates, the concentration of salt gradually increases, and finally the salt crystals are formed on the rope; after a period of time, the winding roller (28) is rotated, the crystallization rope (281) passes through the scraper (291), the salt on the crystallization rope (281) is scraped off by the scraper (291), and the salt is collected by the receiving box (283).

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