Solar energy-based high-concentration brine evaporation desalination equipment

Abstract

The invention relates to the technical field of salt water evaporation and desalination, and discloses solar-based high-concentration salt water evaporation and desalination equipment which is powered on based on solar power generation and comprises an evaporation tank and a heating assembly arranged in the evaporation tank, the evaporation tank comprises an upper tank and a lower tank which are spliced through a flange, and the heating assembly is located in the lower tank. A mixing mechanism is arranged in the upper tank and the lower tank; the mixing mechanism comprises a gear motor arranged in the center of the outer tank top of the upper tank, the output end of the gear motor movably penetrates through the tank top of the upper tank and is provided with a double-shaft transmission frame, the double-shaft transmission frame is slidably sleeved with a transmission sleeve, and a cross-shaped splashing frame is arranged on the outer pipe wall of the transmission sleeve. According to the high-concentration brine evaporation desalting equipment based on solar energy, the overall heating uniformity and heating efficiency of high-concentration brine are improved, local overheating is prevented, and insoluble impurities and crystalline salt are prevented from being attached to the heating pipe.

Description

Technical Field

[0001] The invention relates to the technical field of brine evaporation desalination, and in particular to a high-concentration brine evaporation desalination device based on solar energy. Background Art

[0002] High-salt wastewater mostly comes from seawater, industrial production and saline domestic sewage. It is characterized by high concentrations of inorganic salt ions and a certain amount of organic matter. Its treatment cost is high and the environmental harm is great. The treatment of high-concentration salt water is a severe challenge currently faced. Currently, the commonly used methods for desalination of high-concentration salt water are: There are many ways to desalinate high-concentration salt water, mainly including the following methods:

[0003] Reverse osmosis: Use a semipermeable membrane to separate water. Salt cannot pass through the membrane, but water molecules can pass through, so that the salt in the salt water is removed.

[0004] Distillation method: Water is evaporated by heating, and the salt remains at the bottom as it is non-volatile. The steam is condensed and collected again to obtain clean water.

[0005] Electrodialysis: Use electric field to drive the movement of charged ions through selective membranes to separate salt ions, thereby achieving the effect of desalination.

[0006] Crystallization method: lower the water temperature or evaporate the water to cause salt crystals to precipitate, and then separate the crystals from the clean water.

[0007] Nanofiltration: Similar to reverse osmosis, but nanofiltration membranes have limited permeability to smaller salt ions and are suitable for removing some salts.

[0008] Biological desalination: using the natural action of certain microorganisms or plants to gradually remove salt from water.

[0009] Chemical treatment: Remove salt by adding chemicals to react with salt, but it needs to be handled with caution to avoid secondary contamination.

[0010] Solar energy can be converted into electrical energy to provide heat energy for the distillation method, thereby achieving energy conservation, environmental protection and reducing energy consumption.

[0011] However, when distilling high-concentration brine, the heating rod is located at the bottom of the heating tank to heat and distill the brine, which leads to the following problems:

[0012] Uneven heating: The heating rod is located directly at the bottom of the tank. The brine close to the heating rod will be heated first, while the part of the brine far away from the heating rod will be heated relatively slowly, which may cause uneven temperature distribution and affect the distillation efficiency.

[0013] Local overheating: The salt water near the heating rod will be locally overheated, resulting in rapid evaporation, and may even cause local crystallization of the salt, which will adhere to the heating rod or the container wall, increasing the difficulty of cleaning.

[0014] Scaling problem: Salt water contains insoluble impurities and dissolved salts. During long-term heating, these substances will be deposited on and around the heating rod to form scale, affecting heating efficiency and possibly damaging the heating element. Summary of the invention

[0015] In view of the above problems existing in the prior art, a high-concentration brine evaporation desalination device based on solar energy is proposed.

[0016] The present application provides a high-concentration salt water evaporation and desalination device based on solar energy, the purpose of which is to improve the mobility of salt water and increase the evaporation efficiency of salt water when evaporating and desalting high-concentration salt water, while preventing local overheating during the heating process and scaling of the heating rod.

[0017] The technical solution of the present invention is: a high-concentration salt water evaporation desalination device based on solar energy, which is powered by solar power generation, and includes an evaporation tank and a heating component arranged in the evaporation tank, wherein the evaporation tank includes an upper tank and a lower tank spliced ​​by a flange, the heating component is located in the lower tank, and a mixing mechanism is arranged in the upper tank and the lower tank;

[0018] The mixing mechanism includes a reduction motor arranged at the center of the outer tank top of the upper tank, the output end of the reduction motor movably passes through the tank top of the upper tank and is provided with a double-axis transmission frame, the sliding sleeve of the double-axis transmission frame is provided with a transmission sleeve, and a "cross"-shaped splash bracket is provided on the outer tube wall of the transmission sleeve, and a rolling ball is provided on the end of the splash bracket away from the transmission sleeve, and an elliptical directional groove is opened on the inner tank wall of the lower tank, the directional groove is inclined, and the rolling ball is rollingly arranged in the directional groove.

[0019] Furthermore, the transmission sleeve includes two sliding sleeves symmetrically sleeved on the dual-axis transmission frame, and a transmission sleeve fixedly sleeved on the sliding sleeves.

[0020] Furthermore, two arc-shaped supporting plates are symmetrically arranged on the splash guard.

[0021] Furthermore, a scraper ring is slidably arranged on the inner tank wall of the upper tank, a sealed bearing is arranged on the inner ring wall of the scraper ring, and a transmission rod is symmetrically arranged between the sealed bearing and the transmission sleeve about the double-axis transmission frame.

[0022] Furthermore, an annular heat-conducting cavity is provided on the inner tank wall of the upper tank, a disc-shaped heat-conducting air pipe is arranged in the heat-conducting cavity, and both ends of the heat-conducting air pipe pass through the tank wall of the upper tank, a pressure relief valve is arranged on the tank top of the upper tank, an air inlet pipe is arranged between the pressure relief valve and the air inlet end of the heat-conducting air pipe, an air outlet pipe is arranged at the air outlet end of the heat-conducting air pipe, and a heat exchanger is arranged at the other end of the air outlet pipe.

[0023] Furthermore, the heating assembly includes two support seats symmetrically arranged on the inner tank wall of the lower tank near the tank bottom, and a plurality of heating tubes are arranged between the two support seats.

[0024] Furthermore, two cleaning tubes are symmetrically and movably sleeved on the tube walls at both ends of the heating tube, and the cleaning tubes are rotatably arranged on the corresponding side walls of the support seat, a scraper is commonly arranged on the inner tube walls of the two cleaning tubes, and the other end of the scraper is slidably arranged on the tube wall of the heating tube, and a driving assembly is arranged at one end of the heating tube.

[0025] Furthermore, the driving assembly includes a driving tube movably mounted on the outer tube wall of the cleaning tube, a reset piece is commonly provided between the driving tube and the corresponding support seat, a driving pin is provided on the inner tube wall of the driving tube, a driving groove is provided on the outer tube wall of the cleaning tube, the driving groove is composed of a plurality of grooves connected end to end, the groove includes a connected horizontal section and an inclined section, and one end of the driving pin is movably inserted in the driving groove.

[0026] Furthermore, a push plate is commonly provided on the outer tube wall of multiple driving tubes located on the same side of the heating component, the upper end of the push plate is hinged with a transmission bar, the other ends of the two transmission bars are commonly hinged with a pressure ring, and the pressure ring is movably sleeved on the double-axis transmission frame.

[0027] Beneficial effects of the present invention:

[0028] 1. When evaporating and desalting the high-concentration brine in the evaporation tank, the splashing machine makes an elliptical motion in the high-concentration brine in the evaporation tank. When entering the high-concentration brine, the splashing machine hits the liquid surface of the high-concentration brine. When leaving the high-concentration brine, part of the high-concentration brine is splashed up, and through its own movement in the high-concentration brine, the overall heating uniformity and heating efficiency of the high-concentration brine are improved to prevent local overheating.

[0029] 2. The evaporator is placed in a constant high pressure environment. The excess steam heats up the upper tank and is then discharged to utilize the heat. The high-concentration brine splashed and slapped in the upper tank will disperse and splash, and the brine splashed onto the inner wall of the upper tank will absorb heat in the process of flowing downward, thus making full use of the heat of the steam.

[0030] 3. When the transmission sleeve moves in the vertical direction, the transmission rod and the sealed bearing drive the scraper ring to scrape the inner tank wall of the evaporator, and scrape off the salt particles on the inner wall of the evaporator located on the high-concentration brine liquid level.

[0031] 4. Every time the transmission sleeve makes a vertical rotation stroke, it presses down on the pressure ring, thereby pushing the two cleaning tubes on the heating tube to rotate, so that the scraper performs intermittent scraping and cleaning around the heating tube to prevent insoluble impurities and crystallized salts from adhering to the heating tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0033] Figure 2 is a cross-sectional view of the evaporation tank of the present invention;

[0034] Figure 3 It is a schematic diagram of the heat-conducting gas pipe of the present invention;

[0035] Figure 4 It is a schematic diagram of the three-dimensional structure of the mixing mechanism of the present invention;

[0036] Figure 5 The internal three-dimensional structure of the lower tank of the present invention is shown in FIG. Figure 1 ;

[0037] Figure 6 The internal three-dimensional structure of the lower tank of the present invention is shown in FIG. Figure 2 ;

[0038] Figure 7 It is a schematic diagram of the three-dimensional structure around the heating tube of the present invention;

[0039] Figure 8 for Figure 7 A cross-sectional view of

[0040] Fig. 9 The explosion of the surrounding structure of the heating pipe of the present invention Figure 1 ;

[0041] Fig.10 The explosion of the surrounding structure of the heating pipe of the present invention Figure 2 .

[0042] In the figure:

[0043] 1. Upper tank; 2. Lower tank; 3. Speed ​​reducer; 4. Double-axis transmission frame; 5. Transmission sleeve; 6. Splashing frame; 7. Rolling ball; 8. Directional groove; 9. Support plate; 10. Scraper ring; 11. Sealed bearing; 12. Transmission rod; 13. Heat transfer cavity; 14. Heat transfer air pipe; 15. Pressure relief valve; 16. Inlet pipe; 17. Outlet pipe; 18. Heat exchanger; 19. Support seat; 20. Heating pipe; 21. Cleaning pipe; 22. Scraper; 23. Drive pipe; 24. Reset member; 25. Drive pin; 26. Drive groove; 27. Push plate; 28. Transmission bar; 29. ​​Press ring. DETAILED DESCRIPTION

[0044] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0045] Example 1, reference Figure 1-2 , which is the first embodiment of the present invention, provides a high-concentration salt water evaporation desalination equipment based on solar energy, which is based on solar power generation and includes an evaporation tank and a heating component installed in the evaporation tank. The evaporation tank includes an upper tank 1 and a lower tank 2 spliced ​​by flanges. The upper tank 1 is connected with a feed inlet, and the high-concentration salt water is transported to the evaporation tank through the feed inlet. The bottom of the lower tank 2 is connected with a discharge pipe, which is connected to other equipment and is opened and closed by a valve body. The heating component is located in the lower tank 2, and a mixing mechanism is provided in the upper tank 1 and the lower tank 2; The combined mechanism includes a reduction motor 3 installed at the center of the outer tank top of the upper tank 1. After converting solar energy into electrical energy, the heating component and the reduction motor 3 are energized. The output end of the reduction motor 3 is movable through the tank top of the upper tank 1 and is connected to a double-axis transmission frame 4. The double-axis transmission frame 4 is slidably sleeved with a transmission sleeve 5. A "cross"-shaped splash bracket 6 is connected to the outer tube wall of the transmission sleeve 5. A rolling ball 7 is installed at the end of the splash bracket 6 away from the transmission sleeve 5. An elliptical directional groove 8 is opened on the inner tank wall of the lower tank 2. The directional groove 8 is inclined, and the rolling ball 7 is rollingly set in the directional groove 8.

[0046] Specifically, when the heating component evaporates and desalinates the high-concentration brine in the evaporation tank, the reduction motor 3 drives the dual-axis transmission frame 4 to rotate. When the dual-axis transmission frame 4 rotates, the rolling ball 7 on the splash frame 6 is driven to move in the directional groove 8 through the transmission sleeve 5. Affected by the direction of the directional groove 8, the splash frame 6 makes an elliptical motion in the high-concentration brine in the evaporation tank, and drives the transmission sleeve 5 to slide back and forth on the dual-axis transmission frame 4. When the splash frame 6 enters the high-concentration brine, it hits the liquid surface of the high-concentration brine. When it leaves the high-concentration brine, it splashes up part of the high-concentration brine, and through its own movement in the high-concentration brine, the overall heating uniformity and heating efficiency of the high-concentration brine are improved.

[0047] Reference Figure 1-2And 4, the transmission sleeve 5 includes two sliding sleeves symmetrically sleeved on the dual-axis transmission frame 4, and a transmission sleeve fixedly sleeved on the sliding sleeve. The splash frame 6 is connected to the transmission sleeve. When the dual-axis transmission frame 4 rotates, the transmission sleeve is driven to rotate synchronously through the sliding sleeve. When the splash frame 6 moves in the vertical direction, the transmission sleeve will slide on the dual-axis transmission frame 4 by driving the sliding sleeve.

[0048] Reference Figure 2 and 4 -5, two arc-shaped supporting plates 9 are symmetrically connected to the splashing frame 6, and the supporting plates 9 and the splashing frame 6 form a container with a gap at the bottom. When the splashing frame 6 rotates upward, more high-concentration brine can be carried and splashed out through the formed container, and when the reduction motor 3 stops rotating and the splashing frame 6 is located above the liquid surface, the remaining high-concentration brine in the container can flow out through the gap.

[0049] Example 2, reference Figure 2 and 4 -5 is the second embodiment of the present invention, which is different from the first embodiment in that a scraper ring 10 is slidably arranged on the inner tank wall of the upper tank 1, a sealing bearing 11 is connected to the inner ring wall of the scraper ring 10, and a transmission rod 12 is symmetrically arranged between the sealing bearing 11 and the transmission sleeve 5 about the dual-axis transmission frame 4.

[0050] Specifically, when the transmission sleeve 5 rotates, it only drives the transmission rod 12 to rotate, and does not drive the scraper ring 10 to rotate. When the transmission sleeve 5 moves in the vertical direction, the scraper ring 10 is pulled by the transmission of the transmission rod 12 and the sealing bearing 11 to scrape the inner tank wall of the evaporation tank, so as to scrape off the salt particles on the inner wall of the evaporation tank located on the liquid surface of the high-concentration brine.

[0051] Reference Figure 1-3 The inner tank wall of the upper tank 1 is provided with an annular heat-conducting cavity 13, and a disc-shaped heat-conducting air pipe 14 is arranged in the heat-conducting cavity 13. The heat-conducting cavity 13 can be filled with heat-conducting material, and the heat-conducting material wraps the heat-conducting air pipe 14. Both ends of the heat-conducting air pipe 14 pass through the tank wall of the upper tank 1. The tank top of the upper tank 1 is connected with a pressure relief valve 15. The pressure relief valve 15 and the air inlet end of the heat-conducting air pipe 14 are commonly connected with an air inlet pipe 16. The air outlet end of the heat-conducting air pipe 14 is connected with an air outlet pipe 17, and the other end of the air outlet pipe 17 is connected with a heat exchanger 18.

[0052] Specifically, the pressure relief valve 15 is used to make the evaporator in a certain constant high pressure environment, and the excess steam will enter the heat-conducting air pipe 14 through the pressure relief valve 15 and the air inlet pipe 16. When the steam moves in the heat-conducting air pipe 14, the heat is transferred to the heat-conducting cavity 13, thereby heating the upper tank 1 and utilizing the heat. The high-concentration salt water splashed and beaten by the fighting machine 6 will absorb heat in the process of being dispersed and splashed in the upper tank 1 and splashed onto the inner tank wall of the upper tank 1 and flowing downward, so that the heat of the steam is fully utilized. The steam in the heat-conducting air pipe 14 then enters the heat exchanger 18 through the air outlet pipe 17, and the residual heat in the steam is processed and the steam is cooled.

[0053] The remaining structures are the same as those of Example 1.

[0054] Example 3, reference Figure 1-8 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the heating assembly includes two support seats 19 symmetrically connected to the inner tank wall of the lower tank 2 near the tank bottom, and a plurality of heating tubes 20 are arranged and installed between the two support seats 19. The heating tubes 20 heat the high-concentration brine in the evaporation tank.

[0055] Reference Figure 2 and 5 -10, two cleaning tubes 21 are symmetrically and movably sleeved on the tube walls at both ends of the heating tube 20, and the cleaning tubes 21 are rotatably connected to the side walls of the corresponding support seat 19, a scraper 22 is commonly connected to the inner tube walls of the two cleaning tubes 21, and the other end of the scraper 22 is slidably set on the tube wall of the heating tube 20, and a driving assembly is installed at one end of the heating tube 20, the driving assembly includes a driving tube 23 movably sleeved on the outer tube wall of the cleaning tube 21, a reset member 24 is commonly connected between the driving tube 23 and the corresponding support seat 19, the reset member 24 is a spring, a driving pin 25 is connected to the inner tube wall of the driving tube 23, and a driving groove 26 is opened on the outer tube wall of the cleaning tube 21, the driving groove 26 is composed of a plurality of grooves connected end to end, the groove includes a connected horizontal section and an inclined section, and one end of the driving pin 25 is movably inserted in the driving groove 26.

[0056] Reference Figure 7-8 A push plate 27 is commonly connected to the outer tube wall of multiple driving tubes 23 located on the same side of the heating component. A transmission bar 28 is hinged on the upper end of the push plate 27. The other ends of the two transmission bars 28 are commonly hinged with a pressure ring 29, and the pressure ring 29 is movably mounted on the dual-axis transmission frame 4.

[0057] Specifically, when the transmission sleeve 5 rotates downward and is about to reach the lowest movement point, the transmission sleeve 5 applies downward pressure to the pressure ring 29. After the pressure ring 29 is stressed, it pushes the two push plates 27 to move in opposite directions through the hinged transmission bar 28. When the push plates 27 move, they pull the respectively connected driving tubes 23 to compress the corresponding reset members 24 to move accordingly. While compressing the reset members 24, the driving tube 23 pushes the driving pin 25 to slide in the inclined section of the driving groove 26, thereby pushing the two cleaning tubes 21 on the heating tube 20 to deflect a certain angle. When the cleaning tube 21 rotates, it drives the scraper 22 to scrape the tube wall of the heating tube 20 to prevent insoluble impurities and crystallized salts from adhering to the heating tube 20; until the transmission sleeve 5 moves upward, the transmission sleeve 5 no longer applies downward pressure to the pressure ring 29, and the driving tube 23 is reset through the reset force of the reset member 24, and the driving pin 25 is pulled to move to the horizontal section of the driving groove 26.

[0058] The remaining structure is the same as that of Example 2.

[0059] Based on Examples 1-3, the working principle of the present invention is as follows:

[0060] When the heating tube 20 evaporates and desalinates the high-concentration brine in the evaporation tank, the reduction motor 3 drives the dual-axis transmission frame 4 to rotate. When the dual-axis transmission frame 4 rotates, the rolling ball 7 on the splash frame 6 is driven to move in the directional groove 8 through the transmission sleeve 5. Affected by the direction of the directional groove 8, the splash frame 6 makes an elliptical motion in the high-concentration brine in the evaporation tank, and drives the transmission sleeve 5 to slide back and forth on the dual-axis transmission frame 4. When the splash frame 6 enters the high-concentration brine, it hits the liquid surface of the high-concentration brine. When it leaves the high-concentration brine, it splashes up part of the high-concentration brine, and through its own movement in the high-concentration brine, the overall heating uniformity and heating efficiency of the high-concentration brine are improved.

[0061] The water vapor generated by the early evaporation is retained in the evaporation tank under the influence of the pressure relief valve 15, so that the evaporation tank is in a certain constant high pressure environment. As the pressure continues to increase, the excess steam will enter the heat-conducting air pipe 14 through the pressure relief valve 15 and the air inlet pipe 16. When the steam moves in the heat-conducting air pipe 14, the heat is transferred to the heat-conducting cavity 13, thereby heating the upper tank 1 and utilizing the heat of the steam. When the high-concentration salt water splashed and beaten by the fighting 6 is dispersed and splashed in the upper tank 1, and is splashed on the inner tank wall of the upper tank 1 and flows downward, it absorbs heat, and fully utilizes the heat of the steam. The steam in the heat-conducting air pipe 14 then enters the heat exchanger 18 through the air outlet pipe 17, and the residual heat in the steam is processed and the steam is cooled.

[0062] While the high-concentration brine is evaporating, the transmission sleeve 5 continues to rotate in the vertical direction. The transmission sleeve 5 drives the scraper ring 10 to scrape the inner tank wall of the evaporator through the transmission rod 12 and the sealed bearing 11, so as to scrape off the salt particles on the inner wall of the evaporator above the liquid level of the high-concentration brine, thereby preventing the crystallized salt from adhering to the inner wall of the evaporator.

[0063] When the transmission sleeve 5 rotates downward and is about to reach the lowest movement point, the transmission sleeve 5 applies downward pressure to the pressure ring 29. After the pressure ring 29 is stressed, it pushes the two push plates 27 to move in opposite directions through the hinged transmission bar 28. When the push plates 27 move, they pull the driving tubes 23 connected to each other to compress the corresponding reset members 24 to move accordingly. While compressing the reset members 24, the driving tube 23 pushes the driving pin 25 to slide in the inclined section of the driving groove 26, thereby pushing the two cleaning tubes 21 on the heating tube 20 to deflect a certain angle. When the cleaning tube 21 rotates, it drives the scraper 22 to scrape the tube wall of the heating tube 20 to prevent insoluble impurities and crystallized salts from adhering to the heating tube 20; until the transmission sleeve 5 moves upward, the transmission sleeve 5 no longer applies downward pressure to the pressure ring 29, and the driving tube 23 is reset through the reset force of the reset member 24, and the driving pin 25 is pulled to move to the horizontal section of the driving groove 26.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A high-concentration salt water evaporation desalination device based on solar energy, which is powered by solar power generation, comprises an evaporation tank and a heating component arranged in the evaporation tank, characterized in that: The evaporation tank comprises an upper tank (1) and a lower tank (2) connected by flanges, the heating component is located in the lower tank (2), and a mixing mechanism is provided in both the upper tank (1) and the lower tank (2); The mixing mechanism comprises a reduction motor (3) arranged at the center of the outer tank top of the upper tank (1); the output end of the reduction motor (3) movably penetrates the tank top of the upper tank (1) and is provided with a double-axis transmission frame (4); the double-axis transmission frame (4) is provided with a transmission sleeve (5) on a sliding sleeve; a "cross"-shaped splash bracket (6) is provided on the outer tube wall of the transmission sleeve (5); a rolling ball (7) is provided at one end of the splash bracket (6) away from the transmission sleeve (5); an elliptical orientation groove (8) is opened on the inner tank wall of the lower tank (2); the orientation groove (8) is inclined, and the rolling ball (7) is rollingly arranged in the orientation groove (8).

2. The high-concentration salt water evaporation desalination equipment based on solar energy according to claim 1 is characterized in that: The transmission sleeve (5) comprises two sliding sleeves symmetrically sleeved on the double-axis transmission frame (4), and a transmission sleeve fixedly sleeved on the sliding sleeves.

3. The high-concentration salt water evaporation desalination equipment based on solar energy according to claim 1 is characterized in that: Two arc-shaped supporting plates (9) are symmetrically arranged on the splashing frame (6).

4. The high-concentration salt water evaporation desalination equipment based on solar energy according to claim 1 is characterized in that: A scraper ring (10) is slidably arranged on the inner tank wall of the upper tank (1), a sealing bearing (11) is arranged on the inner ring wall of the scraper ring (10), and a transmission rod (12) is symmetrically arranged between the sealing bearing (11) and the transmission sleeve (5) with respect to the double-axis transmission frame (4).

5. The high-concentration salt water evaporation desalination equipment based on solar energy according to claim 1 is characterized in that: The inner tank wall of the upper tank (1) is provided with an annular heat-conducting cavity (13), a disc-shaped heat-conducting air pipe (14) is arranged in the heat-conducting cavity (13), and both ends of the heat-conducting air pipe (14) penetrate the tank wall of the upper tank (1), a pressure relief valve (15) is arranged on the tank top of the upper tank (1), an air intake pipe (16) is arranged between the pressure relief valve (15) and the air intake end of the heat-conducting air pipe (14), an air outlet pipe (17) is arranged at the air outlet end of the heat-conducting air pipe (14), and a heat exchanger (18) is arranged at the other end of the air outlet pipe (17).

6. The high-concentration salt water evaporation desalination equipment based on solar energy according to claim 1 is characterized in that: The heating assembly comprises two support seats (19) symmetrically arranged on the inner tank wall of the lower tank (2) near the tank bottom, and a plurality of heating tubes (20) are arranged between the two support seats (19).

7. The high-concentration salt water evaporation desalination equipment based on solar energy according to claim 6 is characterized by: Two cleaning tubes (21) are symmetrically and movably sleeved on the tube walls at both ends of the heating tube (20), and the cleaning tubes (21) are rotatably arranged on the side walls of the corresponding support seat (19). A scraper (22) is commonly arranged on the inner tube walls of the two cleaning tubes (21), and the other end of the scraper (22) is slidably arranged on the tube wall of the heating tube (20). A driving component is arranged at one end of the heating tube (20).

8. The high-concentration salt water evaporation desalination equipment based on solar energy according to claim 7 is characterized in that: The driving assembly comprises a driving tube (23) movably sleeved on the outer tube wall of the cleaning tube (21); a reset member (24) is commonly provided between the driving tube (23) and the corresponding support seat (19); a driving pin (25) is provided on the inner tube wall of the driving tube (23); a driving groove (26) is provided on the outer tube wall of the cleaning tube (21); the driving groove (26) is composed of a plurality of grooves connected end to end; the groove comprises a horizontal section and an inclined section connected to each other; one end of the driving pin (25) is movably inserted into the driving groove (26).

9. The high-concentration salt water evaporation desalination equipment based on solar energy according to claim 8 is characterized in that: A push plate (27) is commonly provided on the outer tube wall of a plurality of driving tubes (23) located on the same side of the heating assembly, a transmission bar (28) is hingedly connected to the upper end of the push plate (27), and a pressure ring (29) is commonly hingedly connected to the other ends of the two transmission bars (28), and the pressure ring (29) is movably sleeved on the double-axis transmission frame (4).

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