Solar seawater desalination device and method

Abstract

The present invention relates to the technical field of seawater desalination, and specifically to a solar seawater desalination device and method, comprising a water intake unit, a cooling unit, and a distillation unit. The cooling unit is fixedly arranged inside the water intake unit, and the distillation unit is fixedly arranged outside the water intake unit. Four support legs distributed in a circumferential array are fixedly installed at the bottom of the distillation unit. A convex lens collects sunlight to heat a heat-conducting copper core, causing the temperature inside the cylinder to rise, increasing the pressure inside the cylinder, pushing the magnetic piston and the ballast water column to move downward. The downward movement of the ballast water column drives the rubber plug to move, blocking the top of the water intake hole. As the ballast water column continues to move downward, it squeezes the seawater inside the water intake pipe, causing the seawater level inside the water intake pipe to rise. The seawater enters the water storage cylinder through the water guide hole, and is finally discharged from the drain port and falls on the top of the heating plate. The seawater is distilled and desalinated by the distillation unit, and there is no accumulation of seawater inside the distillation device.

Description

Technical Field

[0001] The present invention relates to the technical field of seawater desalination, and in particular to a solar seawater desalination device and method. Background Art

[0002] Desalination is the process of converting salty seawater into fresh water suitable for drinking or industrial use. This technology addresses the problem of freshwater shortages near the ocean. Desalination can be achieved through a variety of methods, including membrane technology and thermal methods. However, these processes typically require large amounts of energy. Therefore, in recent years, the technology of desalinating seawater using solar energy has developed rapidly.

[0003] According to a Chinese patent application with publication number 202411247598.4, a small solar desalination device is disclosed. The device scrapes the surface of the heat absorbing plate to clean the residue accumulated on the surface of the heat absorbing plate, maintains the stability of the heat absorbing plate in absorbing solar energy, and collects the residue to a position where it does not affect the heat absorbing plate's absorption of solar energy. This achieves the goal of collecting the residue while cleaning the heat absorbing plate. The above-mentioned seawater desalination device uses the action of waves to transport seawater to the top of the heat absorbing plate for heating and vaporization. If the frequency of waves is high, the seawater carrying capacity will increase, and a large amount of seawater will easily accumulate on the heat absorbing plate. In addition, when there are no waves, the above-mentioned seawater desalination device loses its desalination effect, which makes the overall use of the seawater desalination device more restricted. To this end, we propose a solar seawater desalination device and method to solve the above-mentioned technical problems. Summary of the Invention

[0004] The present invention provides the following technical solution: a solar seawater desalination device, comprising:

[0005] Water intake unit, used for desalination and absorption of seawater;

[0006] A cooling unit, fixedly arranged inside the water intake unit, is used for cooling the water intake unit;

[0007] The distillation unit is fixedly arranged outside the water intake unit and is used for distilling and desalinating seawater.

[0008] As a preferred solution of the present invention, the water intake unit includes:

[0009] A water intake pipe is fixedly arranged in the middle of the distillation unit, wherein the top of the water intake pipe is arranged in a funnel shape, and the diameter of the top is larger than the diameter of the bottom;

[0010] The water intake hole is provided at the center of the bottom of the water intake pipe;

[0011] A plurality of water guide holes are provided on the top of the water intake pipe, and the plurality of water guide holes are distributed in a circular array;

[0012] The water storage cylinder is fixedly installed on the top of the water intake pipe and is located outside the multiple water guide holes;

[0013] Drainage outlets are provided through the upper portion of the outer wall of the water storage cylinder, and the number of the drainage outlets is multiple, and the plurality of drainage outlets are distributed in an array around the circumference of the surface of the water storage cylinder, and the drainage outlets are arranged in multiple layers up and down;

[0014] The cylinder cover is fixedly installed on the top of the drain outlet;

[0015] The cylinder is fixedly installed inside the cylinder cover, and its bottom is fixedly connected to the top of the water intake pipe;

[0016] A magnetic piston is slidably mounted inside the cylinder;

[0017] The ballast water column is fixedly installed on the bottom of the magnetic piston and is cocentric with the magnetic piston. The bottom of the ballast water column movably extends to the inside of the water intake pipe.

[0018] As a preferred solution of the present invention, the water intake unit further includes:

[0019] The heat-conducting copper core is fixedly installed on the top of the cylinder and extends into the interior of the cylinder;

[0020] The convex lens is fixedly mounted on the top of the cylinder through a fixing bracket, and the focus of the convex lens is located at the center of the top of the heat-conducting copper core.

[0021] As a preferred solution of the present invention, the water intake unit further includes:

[0022] The telescopic sliding hole is opened at the bottom center of the ballast water column and extends to the inside of the telescopic sliding hole;

[0023] The telescopic slide rod is slidably installed inside the telescopic slide hole;

[0024] A rubber plug is fixedly installed at the bottom of the telescopic slide rod. The specifications of the rubber plug are adapted to the specifications of the water intake hole. A 20mm gap is set between the bottom of the rubber plug and the inner side surface of the bottom of the water intake pipe;

[0025] The spring is sleeved on the outer periphery of the telescopic slide rod and fixedly installed between the bottom of the ballast water column and the top of the rubber plug;

[0026] The filter head is fixedly installed at the bottom of the water intake pipe and is used to filter out debris.

[0027] As a preferred solution of the present invention, the cooling unit includes:

[0028] A water blocking sleeve is fixedly mounted on the bottom of the cylinder cover and is located between the water storage cylinder and the cylinder barrel, and the water blocking sleeve is located on the inner side of the multiple water guide holes;

[0029] The water-blocking sliding ring is slidably mounted on the lower part of the inner wall of the water-blocking sleeve;

[0030] Angle brackets are fixedly installed on the inner wall of the water retaining sliding ring at equal angles;

[0031] No. 1 magnetic ring, fixedly installed on the top of multiple angle brackets;

[0032] Push rods are fixedly mounted on the top of multiple corner brackets, and the tops of the push rods are bent at right angles;

[0033] A second magnetic ring is slidably mounted on the outer wall of the cylinder, and the second magnetic ring and the magnetic piston are magnetically attracted to each other;

[0034] The suspension rods are fixedly installed at the bottom of the second magnetic ring at equal angles;

[0035] The third magnetic ring is fixedly installed at the bottom of the plurality of suspension rods, and the bottom of the third magnetic ring has opposite magnetic properties to the top of the first magnetic ring.

[0036] As a preferred embodiment of the present invention, the distillation unit comprises:

[0037] The base is fixedly installed on the periphery of the water intake pipe;

[0038] The heating plate is fixedly installed on the top of the base and is located outside the water intake pipe;

[0039] Conical condensation hood, fixedly installed on the top of the base;

[0040] The heat dissipation wings are fixedly mounted on the outer wall of the conical condensation cover in a circumferential array;

[0041] The water collecting tank is fixedly installed on the upper part of the inner wall of the heat dissipation wing;

[0042] The water delivery pipe is fixedly installed on the outer surface of the conical condensation cover and has a height adapted to the water collecting tank. The interior of the water delivery pipe is communicated with the interior of the conical condensation cover.

[0043] As a preferred solution of the present invention, it also includes:

[0044] A photovoltaic panel is fixedly mounted on the outer wall of the conical condensation hood, and is used to supply power to the heating panel.

[0045] As a preferred solution of the present invention, it also includes:

[0046] A water receiving box is fixedly mounted on the outer wall of the water storage cylinder and is located at the bottom of the openings of the multiple drain ports;

[0047] The water distribution pipes are fixedly installed on the lower part of the outer wall of the water receiving box in a circumferential array distribution, and the interiors of the water distribution pipes are communicated with the interior of the water receiving box.

[0048] As a preferred solution of the present invention, it also includes:

[0049] There are four supporting legs, which are distributed in a circular array and fixedly installed on the bottom of the base.

[0050] A desalination method of a solar seawater desalination device comprises the following steps:

[0051] S1, the desalination device is supported in seawater by four supporting legs, and the water intake pipe is inserted into the seawater, while ensuring that the base is located at the top of the water surface, and seawater enters the water intake pipe through the water intake hole;

[0052] In step S2, sunlight shines on the top of the convex lens, which concentrates the sunlight and heats the heat-conducting copper core, causing the temperature inside the cylinder to rise. This increases the pressure inside the cylinder, pushing the magnetic piston and the ballast water column downward. The downward movement of the ballast water column drives the rubber plug to move, blocking the top of the water intake hole. As the ballast water column continues to move downward, it squeezes the seawater inside the water intake pipe, causing the seawater level inside the water intake pipe to rise. The seawater enters the water storage cylinder through the water guide hole and is finally discharged from the drain port and falls on the top of the heating plate.

[0053] In S3, sunlight shines on the photovoltaic panels to generate electricity to power the heating panels, which heat the seawater, causing it to evaporate and float upward. The water vapor is adsorbed on the inner wall of the conical condensation hood, which absorbs the heat of the water vapor, causing it to liquefy and then flow into the water collection tank along the inner wall of the conical condensation hood, and finally be discharged from the water pipe, completing the desalination of seawater.

[0054] Compared with the prior art, the present invention has the following beneficial effects:

[0055] 1. In the present invention, sunlight is concentrated by a convex lens to heat the heat-conducting copper core, causing the temperature inside the cylinder to rise, and the pressure inside the cylinder to increase, pushing the magnetic piston and the ballast water column downward. The downward movement of the ballast water column drives the rubber plug to move, blocking the top of the water intake hole. As the ballast water column continues to move downward, it squeezes the seawater inside the water intake pipe, causing the seawater level inside the water intake pipe to rise. The seawater enters the water storage cylinder through the water guide hole and is finally discharged from the drain port and falls on the top of the heating plate. It is then distilled and desalinated by the distillation unit, and there is no accumulation of seawater inside the distillation device.

[0056] 2. In the present invention, during the downward movement of the magnetic piston, the second magnetic ring on its periphery is also driven downward by the action of magnetic force. Therefore, the push-pull rod abutting the top of the second magnetic ring moves downward together under the action of gravity, and drives the water-blocking sliding ring to slide downward along the inner wall of the water-blocking sleeve through the first magnetic ring and the angle code, blocking the bottom of the water-blocking sliding ring. Therefore, the rising seawater level inside the water intake pipe will not enter between the water-blocking sleeve and the cylinder, avoiding contact between seawater and the inner wall of the cylinder. Therefore, the heat of the air inside the cylinder will not be absorbed by the seawater, ensuring that the interior of the cylinder has sufficient pressure, which is enough to continue to push the magnetic piston downward.

[0057] 3. In the present invention, when the magnetic piston moves down to the bottom dead center position, the No. 2 magnetic ring, which moves down with the magnetic piston, drives the No. 3 magnetic ring to move down to the top of the No. 1 magnetic ring through the suspension rod. The No. 1 magnetic ring moves upward under the magnetic attraction of the No. 3 magnetic ring. The No. 1 magnetic ring moves upward and drives the water-blocking sliding ring to slide upward along the inner wall of the water-blocking sleeve through the angle code, opening the bottom of the water-blocking sliding ring. At this time, the seawater between the water storage cylinder and the water-blocking sleeve enters the interior of the water-blocking sleeve through the channel between the bottom of the water-blocking sliding ring and the top of the water intake pipe. The seawater entering the water-blocking sleeve contacts the outer wall of the cylinder, continuously absorbs the temperature of the air inside the cylinder, causing the air temperature inside the cylinder to gradually drop, and the air pressure inside the cylinder to gradually recover. Therefore, the magnetic piston gradually resets upward.

[0058] 4. In the present invention, during the upward reset of the magnetic piston, the second magnetic ring is driven upward by the magnetic force. When the top of the second magnetic ring contacts the bottom of the bent part of the push rod, the push rod is lifted upward, and then the water-blocking sliding ring is driven to slide upward along the inner wall of the water-blocking sleeve through the angle code, causing the bottom of the water-blocking sleeve to open. The seawater inside the water-blocking sleeve then flows back to the water intake pipe through the water guide hole, which is beneficial to the storage of temperature inside the cylinder again and provides the next water intake demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] Figure 1 It is a structural schematic diagram of the present invention;

[0060] Figure 2 Schematic diagram of the side cross-section structure of the conical condensation hood of the present invention;

[0061] Figure 3 This is a schematic diagram of the cross-section structure of the water intake pipe in the present invention;

[0062] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged structure of part A;

[0063] Figure 5 For the present invention Figure 3 Schematic diagram of the enlarged structure of part B;

[0064] Figure 6 Schematic diagram of the side cross-section structure of the ballast water column in the present invention;

[0065] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of part C;

[0066] Figure 8 For the present invention Figure 6 Schematic diagram of the enlarged structure of part D;

[0067] Figure 9Schematic diagram of the detailed structure of the cooling unit in the present invention.

[0068] In the figure: 100, water intake unit; 101, water intake pipe; 1001, water guide hole; 102, water intake hole; 103, water storage cylinder; 104, drain outlet; 105, cylinder cover; 106, cylinder; 107, magnetic piston; 108, ballast water column; 109, thermal conductive copper core; 1010, convex lens; 1011, telescopic sliding hole; 1012, telescopic sliding rod; 1013, rubber plug; 1014, spring; 1015, filter head; 200, cooling unit ; 201, water-blocking sleeve; 202, water-blocking sliding ring; 203, angle code; 204, magnetic ring No. 1; 205, push rod; 206, magnetic ring No. 2; 207, suspension rod; 208, magnetic ring No. 3; 300, distillation unit; 301, base; 302, heating plate; 303, conical condensation cover; 304, heat dissipation wings; 305, water collecting trough; 306, water pipe; 400, photovoltaic panel; 500, water receiving box; 501, water distribution pipe; 600, support leg. DETAILED DESCRIPTION

[0069] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0070] See also Figures 1 to 9 The technical solution provided by the present invention specifically includes the following embodiments:

[0071] A solar seawater desalination device includes a water intake unit 100, a cooling unit 200 and a distillation unit 300. The water intake unit 100 is used for desalinating seawater. The cooling unit 200 is fixedly arranged inside the water intake unit 100 and is used for cooling the water intake unit 100. The distillation unit 300 is fixedly arranged outside the water intake unit 100 and is used for distilling and desalinating seawater. Four support legs 600 distributed in a circumferential array are fixedly installed at the bottom of the distillation unit 300.

[0072] For further details, please refer to Figures 3 to 7 As shown:

[0073] The water intake unit 100 includes a water intake pipe 101, a water guide hole 1001, a water intake hole 102, a water storage cylinder 103, a drain port 104, a cylinder cover 105, a cylinder 106, a magnetic piston 107, a ballast water column 108, a heat-conducting copper core 109 and a convex lens 1010. The water intake pipe 101 is fixedly arranged in the middle of the distillation unit 300. The top of the water intake pipe 101 is funnel-shaped, and its top diameter is larger than its bottom diameter. The water intake hole 102 is opened through the center of the bottom circle of the water intake pipe 101, and the water guide hole 1001 is opened through the top of the water intake pipe 101, and there are multiple water guide holes 1001. The multiple water guide holes 1001 are distributed in a circular array. The water storage cylinder 103 is fixedly installed on the top of the water intake pipe 101 and is located outside the multiple water guide holes 1001. The drain port 104 is opened through the upper part of the outer wall of the water storage cylinder 103 , and there are multiple drain ports 104 distributed in a circular array on the surface of the water storage cylinder 103, and the drain ports 104 are arranged in multiple layers up and down, the cylinder cover 105 is fixedly installed on the top of the drain port 104, the cylinder 106 is fixedly installed inside the cylinder cover 105, and its bottom is fixedly connected to the top of the water intake pipe 101, the magnetic piston 107 is slidably installed inside the cylinder 106, the ballast water column 108 is fixedly installed at the bottom of the magnetic piston 107, and is concentric with the magnetic piston 107, the bottom of the ballast water column 108 is movably extended to the inside of the water intake pipe 101, the thermal conductive copper core 109 is fixedly installed on the top of the cylinder 106 and extends to the inside of the cylinder 106, the convex lens 1010 is fixedly installed on the top of the cylinder 106 through a fixed bracket, and the focus of the convex lens 1010 is located at the center of the top of the thermal conductive copper core 109.

[0074] Specifically, first place the seawater desalination device in the seawater, and support and fix the device with four supporting legs 600 to ensure stability in use. At the same time, it is necessary to ensure that the water intake pipe 101 extends into the seawater and that the water surface is slightly lower than the bottom of the base 301. Seawater flows into the water intake pipe 101 through the water intake hole 102. After the sunlight shines on the top of the convex lens 1010, the convex lens 1010 focuses the sunlight and hits the top of the heat-conducting copper core 109, heating the heat-conducting copper core 109. The heated heat-conducting copper core 109 transfers heat to the air inside the cylinder 106, causing the cylinder 106 to be heated. 06's internal temperature rises, causing its internal pressure to gradually increase, thereby pushing the magnetic piston 107 downward. The downward movement of the magnetic piston 107 drives the ballast water column 108 downward together. Since the downward movement of the ballast water column 108 invades the internal space of the water intake pipe 101, the internal space of the water intake pipe 101 is gradually compressed. Therefore, the level of seawater flowing into the water intake pipe 101 continues to rise, and eventually enters the interior of the water storage cylinder 103 through the water guide hole 1001. When the seawater level rises to the position of the drain port 104, it is discharged through the drain port 104 and finally distilled and desalinated by the distillation unit 300.

[0075] For further details, please refer to Figure 8 As shown:

[0076] The water intake unit 100 also includes a telescopic sliding hole 1011, a telescopic slide rod 1012, a rubber plug 1013, a spring 1014 and a filter head 1015. The telescopic sliding hole 1011 is opened at the bottom center of the ballast water column 108 and extends to the inside of the telescopic sliding hole 1011. The telescopic slide rod 1012 is slidably installed inside the telescopic sliding hole 1011. The rubber plug 1013 is fixedly installed at the bottom of the telescopic slide rod 1012. The specifications of the rubber plug 1013 are compatible with the specifications of the water intake hole 102. A 20mm gap is set between the bottom of the rubber plug 1013 and the bottom inner side surface of the water intake pipe 101. The spring 1014 is sleeved on the outer periphery of the telescopic slide rod 1012 and fixedly installed between the bottom of the ballast water column 108 and the top of the rubber plug 1013. The filter head 1015 is fixedly installed at the bottom of the water intake pipe 101. The filter head 1015 is used to filter debris.

[0077] Specifically, the ballast water column 108 moves downward and further drives the telescopic slide rod 1012 and the rubber plug 1013 to move downward together under the connection action of the spring 1014, so that the rubber plug 1013 is blocked inside the water intake hole 102. After that, the ballast water column 108 continues to move downward, and is resisted by the rubber plug 1013 and the water intake hole 102, so the telescopic slide rod 1012 slides into the telescopic slide hole 1011, and the spring 1014 is compressed and accumulates force. Since the rubber plug 1013 blocks the water intake hole 102, the seawater inside the water intake pipe 101 will not be discharged through the water intake hole 102 after being squeezed by the ballast water column 108 moving downward, but the liquid level will gradually rise and eventually be discharged into the distillation unit 300 from the drain port 104.

[0078] For further details, please refer to Figure 9 As shown:

[0079] The cooling unit 200 includes a water-blocking sleeve 201, a water-blocking sliding ring 202, an angle code 203, a first magnetic ring 204, a push rod 205, a second magnetic ring 206, a suspension rod 207 and a third magnetic ring 208. The water-blocking sleeve 201 is fixedly mounted on the bottom of the cylinder cover 105 and is located between the water storage cylinder 103 and the cylinder 106. The water-blocking sleeve 201 is located on the inner side of the multiple water guide holes 1001. The water-blocking sliding ring 202 is slidably mounted on the lower part of the inner wall of the water-blocking sleeve 201. The angle code 203 is fixedly mounted on the inner wall of the water-blocking sliding ring 202 at equal angles. The No. 1 magnetic ring 204 is fixedly mounted on the top of multiple angle codes 203, and the push rods 205 are respectively fixedly mounted on the top of multiple angle codes 203. The top of the push rod 205 is bent at a right angle. The No. 2 magnetic ring 206 is slidably mounted on the outer wall of the cylinder 106. The No. 2 magnetic ring 206 and the magnetic piston 107 are magnetically attracted to each other. The suspension rods 207 are fixedly mounted at the bottom of the No. 2 magnetic ring 206 at equal angles. The No. 3 magnetic ring 208 is fixedly mounted on the bottom of multiple suspension rods 207. The magnetism of the bottom of the No. 3 magnetic ring 208 is opposite to that of the top of the No. 1 magnetic ring 204.

[0080] Specifically, during the downward movement of the magnetic piston 107, the second magnetic ring 206 on its periphery is also driven downward by the action of the magnetic force. Therefore, the push rod 205 abutting against the top of the second magnetic ring 206 moves downward together under the action of gravity, and drives the water-blocking sliding ring 202 to slide downward along the inner wall of the water-blocking sleeve 201 through the first magnetic ring 204 and the angle code 203, blocking the bottom of the water-blocking sliding ring 202. Therefore, the rising seawater level inside the water intake pipe 101 will not enter between the water-blocking sleeve 201 and the cylinder 106, avoiding contact between seawater and the inner wall of the cylinder 106. Therefore, the heat of the air inside the cylinder 106 will not be absorbed by the seawater. The first magnetic ring 204 is pulled upward by the magnetic attraction of the third magnetic ring 208, and the first magnetic ring 204 is pulled upward by the angle code 203 to drive the water retaining ring 202 to slide upward along the inner wall of the water blocking sleeve 201, opening the bottom of the water retaining ring 202. At this time, the seawater between the water storage cylinder 103 and the water blocking sleeve 201 is The seawater enters the water-blocking sleeve 201 through the channel between the bottom of the water-blocking sliding ring 202 and the top of the water-intake pipe 101. The seawater entering the water-blocking sleeve 201 contacts the outer wall of the cylinder 106, continuously absorbing the temperature of the air inside the cylinder 106, causing the air temperature inside the cylinder 106 to gradually drop, and the air pressure inside the cylinder 106 gradually recovers. Therefore, the magnetic piston 107 gradually returns to its original position, and the spring 1014 gradually rebounds, causing the telescopic slide rod 1012 to slide outward along the inner wall of the telescopic slide hole 1011 until the magnetic piston 107 returns to its original position, the rubber plug 1013 is removed from the water-intake hole 102, and the seawater passes through again. The water intake hole 102 flows into the interior of the water intake pipe 101. At the same time, when the magnetic piston 107 is reset upward, the second magnetic ring 206 is driven upward by the magnetic force. When the top of the second magnetic ring 206 contacts the bottom of the bent part of the push rod 205, the push rod 205 is lifted upward, and then the water retaining ring 202 is driven to slide upward along the inner wall of the water blocking sleeve 201 through the angle code 203, causing the bottom of the water blocking sleeve 201 to open, and the seawater inside the water blocking sleeve 201 flows back to the inside of the water intake pipe 101 through the water guide hole 1001, which is conducive to the storage of temperature inside the cylinder 106 again to provide the next water intake demand.

[0081] For further details, please refer to Figure 2 As shown:

[0082] The distillation unit 300 includes a base 301, a heating plate 302, a conical condensation hood 303, heat dissipation wings 304, a water collecting tank 305 and a water pipe 306. The base 301 is fixedly mounted on the periphery of the water intake pipe 101, the heating plate 302 is fixedly mounted on the top of the base 301 and is located on the periphery of the water intake pipe 101, the conical condensation hood 303 is fixedly mounted on the top of the base 301, the heat dissipation wings 304 are fixedly mounted on the outer wall of the conical condensation hood 303 in a circular array, the water collecting tank 305 is fixedly mounted on the upper part of the inner wall of the heat dissipation wings 304, the water pipe 306 is fixedly mounted on the outer surface of the conical condensation hood 303, and the height is adapted to the water collecting tank 305. The interior of the water pipe 306 is connected to the interior of the conical condensation hood 303, and a photovoltaic panel 400 is fixedly mounted on the outer wall of the conical condensation hood 303, and the photovoltaic panel 400 is used to power the heating plate 302.

[0083] Specifically, sunlight shines on the surface of the photovoltaic panel 400, causing the photovoltaic panel 400 to generate electricity and supply power to the heating plate 302, causing the heating plate 302 to heat the seawater on top of it. The heated seawater gradually evaporates into water vapor and floats upward, and is eventually intercepted by the conical condensation hood 303 and attached to the inner wall of the conical condensation hood 303. The water vapor is condensed by the conical condensation hood 303, and the condensed water droplets flow downward along the inner wall of the conical condensation hood 303, and finally enter the water collection tank 305 and are discharged through the water pipe 306.

[0084] For further details, please refer to Figure 3 As shown:

[0085] It also includes a water receiving box 500 and a water distribution pipe 501. The water receiving box 500 is fixedly installed on the outer wall of the water storage cylinder 103. The water receiving box 500 is located at the bottom of the openings of multiple drain outlets 104. The water distribution pipe 501 is fixedly installed on the lower part of the outer wall of the water receiving box 500 in a circular array. The interior of the water distribution pipe 501 is connected to the interior of the water receiving box 500.

[0086] Specifically, the seawater discharged from the drain port 104 is collected by the water receiving box 500 and then distributed to the top of the heating plate 302 through multiple water distribution pipes 501, so that the seawater on the top of the heating plate 302 is distributed more evenly and the distillation effect is better.

[0087] A desalination method of a solar seawater desalination device comprises the following steps:

[0088] S1, the desalination device is supported in seawater by four support legs 600, and the water intake pipe 101 is inserted into the seawater, while ensuring that the base 301 is at the top of the water surface, and seawater enters the water intake pipe 101 through the water intake hole 102;

[0089] In step S2, sunlight shines on the top of the convex lens 1010. The sunlight is concentrated by the convex lens 1010 and heats the heat-conducting copper core 109, causing the temperature inside the cylinder 106 to rise. The pressure inside the cylinder 106 increases, pushing the magnetic piston 107 and the ballast water column 108 downward. The downward movement of the ballast water column 108 drives the rubber plug 1013 to move and block the top of the water intake hole 102. As the ballast water column 108 continues to move downward, it squeezes the seawater inside the water intake pipe 101, causing the seawater level inside the water intake pipe 101 to rise. The seawater enters the water storage cylinder 103 through the water guide hole 1001 and is finally discharged from the drain port 104 and falls on the top of the heating plate 302.

[0090] S3, sunlight shines on the photovoltaic panel 400 to generate electricity to power the heating plate 302, which heats the seawater through the heating plate 302 to cause it to evaporate and float upward. The water vapor is adsorbed on the inner wall of the conical condensation hood 303, and the inner wall of the conical condensation hood 303 absorbs the heat of the water vapor, causing it to liquefy and then flow into the water collection tank 305 along the inner wall of the conical condensation hood 303, and finally discharged from the water pipe 306, completing the desalination of seawater.

[0091] When the solar desalination device of this solution is in operation, the device is first placed in seawater and supported and fixed by four support legs 600 to ensure stability during use. At the same time, it is necessary to ensure that the water intake pipe 101 extends into the seawater and that the water surface is slightly lower than the bottom of the base 301. Seawater flows into the water intake pipe 101 through the water intake hole 102.

[0092] The use process of this device is divided into seawater absorption and seawater distillation process:

[0093] During the seawater absorption process, after sunlight shines on the top of the convex lens 1010, the convex lens 1010 focuses the sunlight and hits the top of the heat-conducting copper core 109, heating the heat-conducting copper core 109. The heated heat-conducting copper core 109 transfers the heat to the air inside the cylinder 106, causing the temperature inside the cylinder 106 to rise, and the internal pressure to gradually increase, thereby pushing the magnetic piston 107 to move downward. During the downward movement of the magnetic piston 107, the second magnetic ring 206 on its periphery will also be driven downward by the action of the magnetic force. Therefore, the second magnetic ring 206 abutting against the second magnetic ring will be pushed downward. The push rod 205 on the top of the magnetic ring 206 moves downward together under the action of gravity, and drives the water-blocking sliding ring 202 to slide downward along the inner wall of the water-blocking sleeve 201 through the No. 1 magnetic ring 204 and the angle code 203, blocking the bottom of the water-blocking sliding ring 202. Therefore, the seawater level inside the water intake pipe 101 rises and does not enter between the water-blocking sleeve 201 and the cylinder 106, avoiding contact between the seawater and the inner wall of the cylinder 106. Therefore, the heat of the air inside the cylinder 106 will not be absorbed by the seawater, ensuring that the interior of the cylinder 106 has sufficient pressure to continue to push The magnetic piston 107 moves downward, and at the same time, the magnetic piston 107 moves downward, driving the ballast water column 108 to move downward together, and further driving the telescopic slide rod 1012 and the rubber plug 1013 to move downward together under the connecting action of the spring 1014, so that the rubber plug 1013 is blocked inside the water intake hole 102. After that, the ballast water column 108 continues to move downward, and is resisted by the rubber plug 1013 and the water intake hole 102, so that the telescopic slide rod 1012 slides into the telescopic slide hole 1011, and the spring 1014 will be compressed and stored. The downward movement of the ballast water column 108 invades the internal space of the water intake pipe 101, causing the internal space of the water intake pipe 101 to be gradually compressed. As a result, the level of seawater flowing into the water intake pipe 101 continues to rise, and eventually enters the interior of the water storage cylinder 103 and the external space of the water blocking sleeve 201 and the water retaining ring 202 through the water guide hole 1001. When the seawater level rises to the position of the drain port 104, it is discharged through the drain port 104, collected by the water receiving box 500, and then distributed to the top of the heating plate 302 through multiple water distribution pipes 501;

[0094] During the seawater distillation process, sunlight shines on the surface of the photovoltaic panel 400, causing the photovoltaic panel 400 to generate electricity, which in turn powers the heating plate 302, causing the heating plate 302 to heat the seawater on top of it. The heated seawater gradually evaporates into water vapor, which floats upward and is eventually intercepted by the conical condensation hood 303 and adheres to the inner wall of the conical condensation hood 303. The conical condensation hood 303 condenses the water vapor, and the condensed water droplets flow downward along the inner wall of the conical condensation hood 303, eventually entering the water collection tank 305 and then being discharged through the water pipe 306.

[0095] It should be noted that when the magnetic piston 107 moves down to the bottom dead center position, the No. 2 magnetic ring 206 that moves down with the magnetic piston 107 drives the No. 3 magnetic ring 208 down to the top of the No. 1 magnetic ring 204 through the suspension rod 207. The No. 1 magnetic ring 204 moves upward under the magnetic attraction of the No. 3 magnetic ring 208. The No. 1 magnetic ring 204 moves upward and drives the water retaining sliding ring 202 to slide upward along the inner wall of the water blocking sleeve 201 through the angle code 203, opening the bottom of the water retaining sliding ring 202. At this time, the seawater between the water storage cylinder 103 and the water blocking sleeve 201 enters the interior of the water blocking sleeve 201 through the channel between the bottom of the water retaining sliding ring 202 and the top of the water intake pipe 101. The seawater entering the water blocking sleeve 201 contacts the outer wall of the cylinder 106, continuously absorbing the temperature of the air inside the cylinder 106, causing the air temperature inside the cylinder 106 to gradually drop, and the air pressure inside the cylinder 106 gradually recovers. Therefore, the magnetic piston The water in the water blocking sleeve 201 flows back to the inside of the water intake pipe 101 through the water guide hole 1001, which is beneficial to the storage of temperature inside the cylinder 106 and the next water intake demand.

[0096] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A solar seawater desalination device, characterized by: include: The water intake unit (100) is used for desalination and absorption of seawater, and the water intake unit (100) comprises: A water intake pipe (101) is fixedly arranged in the middle of the distillation unit (300), wherein the top of the water intake pipe (101) is arranged in a funnel shape, and the diameter of the top is larger than the diameter of the bottom; A water intake hole (102) is provided through the center of the bottom of the water intake pipe (101); A plurality of water guide holes (1001) are provided through the top of the water intake pipe (101), and the plurality of water guide holes (1001) are distributed in a circular array; A water storage cylinder (103) is fixedly mounted on the top of the water intake pipe (101) and is located outside the plurality of water guide holes (1001); Drainage outlets (104) are provided through the upper portion of the outer wall of the water storage cylinder (103), and are in plurality. The plurality of drainage outlets (104) are distributed in a circular array about the surface of the water storage cylinder (103), and the drainage outlets (104) are arranged in multiple layers. A cylinder cover (105) is fixedly mounted on the top of the drain outlet (104); The cylinder (106) is fixedly mounted inside the cylinder cover (105), and its bottom is fixedly connected to the top of the water intake pipe (101); A magnetic piston (107) is slidably mounted inside the cylinder (106); A ballast water column (108) is fixedly mounted on the bottom of the magnetic piston (107) and is cocentric with the magnetic piston (107), and the bottom of the ballast water column (108) is movably extended to the inside of the water intake pipe (101); The water intake unit (100) further comprises: A heat-conducting copper core (109) is fixedly mounted on the top of the cylinder (106) and extends into the interior of the cylinder (106); A convex lens (1010) is fixedly mounted on the top of the cylinder (106) via a fixed bracket, wherein the focus of the convex lens (1010) is located at the center of the top of the heat-conducting copper core (109); The water intake unit (100) further comprises: The telescopic sliding hole (1011) is provided at the center of the bottom circle of the ballast water column (108) and extends to the interior of the ballast water column (108); A telescopic slide rod (1012) is slidably mounted inside the telescopic slide hole (1011); A rubber plug (1013) is fixedly mounted on the bottom of the telescopic slide rod (1012), the specifications of the rubber plug (1013) being compatible with the specifications of the water intake hole (102), and a gap of 20 mm is provided between the bottom of the rubber plug (1013) and the inner side surface of the bottom of the water intake pipe (101); The spring (1014) is sleeved on the outer periphery of the telescopic slide rod (1012) and fixedly installed between the bottom of the ballast water column (108) and the top of the rubber plug (1013); A filter head (1015) is fixedly mounted on the bottom of the water intake pipe (101), and the filter head (1015) is used to filter debris; A cooling unit (200) is fixedly arranged inside the water intake unit (100) and is used for cooling the water intake unit (100); The distillation unit (300) is fixedly arranged outside the water intake unit (100) and is used for distilling and desalinating seawater.

2. A solar seawater desalination device according to claim 1, characterized in that: The cooling unit (200) comprises: A water-blocking sleeve (201) is fixedly mounted on the bottom of the cylinder cover (105) and is located between the water storage cylinder (103) and the cylinder barrel (106), wherein the water-blocking sleeve (201) is located inside the plurality of water guide holes (1001); A water-blocking sliding ring (202) is slidably mounted on the lower portion of the inner wall of the water-blocking sleeve (201); Angle brackets (203) are fixedly mounted on the inner wall of the water retaining sliding ring (202) at equal angles; A first magnetic ring (204) is fixedly mounted on the top of the plurality of angle codes (203); Push rods (205) are fixedly mounted on the tops of the plurality of corner brackets (203), and the tops of the push rods (205) are bent at right angles; A second magnetic ring (206) is slidably mounted on the outer wall of the cylinder (106), and the second magnetic ring (206) and the magnetic piston (107) are magnetically attracted to each other; The suspension rod (207) is fixedly mounted at the bottom of the second magnetic ring (206) at equal angles; The third magnetic ring (208) is fixedly mounted on the bottom of the plurality of suspension rods (207), and the bottom of the third magnetic ring (208) has opposite magnetic properties to the top of the first magnetic ring (204).

3. A solar seawater desalination device according to claim 2, characterized in that: The distillation unit (300) comprises: A base (301) is fixedly mounted on the periphery of the water intake pipe (101); A heating plate (302) is fixedly mounted on the top of the base (301) and is located outside the water intake pipe (101); A conical condensation cover (303) is fixedly mounted on the top of the base (301); Heat dissipation wings (304) are fixedly mounted on the outer wall of the conical condensation cover (303) in a circumferential array distribution; A water collecting tank (305) is fixedly mounted on the upper inner wall of the heat dissipation wing (304); The water delivery pipe (306) is fixedly mounted on the outer surface of the conical condensation cover (303) and has a height adapted to the water collecting tank (305). The interior of the water delivery pipe (306) is in communication with the interior of the conical condensation cover (303).

4. A solar seawater desalination device according to claim 3, characterized in that: Also includes: The photovoltaic panel (400) is fixedly mounted on the outer wall of the conical condensation cover (303), and the photovoltaic panel (400) is used to supply power to the heating panel (302).

5. A solar seawater desalination device according to claim 4, characterized in that: Also includes: A water receiving box (500) is fixedly mounted on the outer wall of the water storage cylinder (103), wherein the water receiving box (500) is located at the bottom of the openings of the plurality of drain ports (104); The water distribution pipes (501) are fixedly installed on the lower part of the outer wall of the water receiving box (500) in a circumferential array distribution, and the interior of the water distribution pipes (501) is connected to the interior of the water receiving box (500).

6. A solar seawater desalination device according to claim 5, characterized in that: Also includes: There are four supporting legs (600), which are fixedly mounted on the bottom of the base (301) in a circular array.

7. The desalination method of a solar seawater desalination device according to claim 6, characterized in that: The following steps are included: S1, the desalination device is supported in seawater by four supporting legs (600), and the water intake pipe (101) is inserted into the seawater, while ensuring that the base (301) is located on the top of the water surface, and seawater enters the water intake pipe (101) through the water intake hole (102); S2, sunlight irradiates the top of the convex lens (1010), and the convex lens (1010) gathers sunlight to heat the heat-conducting copper core (109), causing the temperature inside the cylinder (106) to rise, and the pressure inside the cylinder (106) to increase, pushing the magnetic piston (107) and the ballast water column (108) to move downward. The ballast water column (108) moves downward and drives the rubber plug (1013) to move, blocking the top of the water intake hole (102). As the ballast water column (108) continues to move downward, it squeezes the seawater inside the water intake pipe (101), causing the seawater level inside the water intake pipe (101) to rise, and enter the water storage cylinder (103) through the water guide hole (1001), and finally discharged from the drain port (104) and falls on the top of the heating plate (302); S3, sunlight irradiates the photovoltaic panel (400) to generate electricity to power the heating plate (302), and the heating plate (302) heats the seawater to cause it to evaporate and float upward, and the water vapor is adsorbed on the inner wall of the conical condensation cover (303). The inner wall of the conical condensation cover (303) absorbs the heat of the water vapor, causing it to liquefy and then be discharged into the water collection tank (305) along the inner wall of the conical condensation cover (303), and finally discharged from the water pipe (306), thereby completing the desalination of seawater.

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