Efficient seawater desalination device

Abstract

An efficient seawater desalination device, used for converting seawater into fresh water and comprising a main body unit (31), an evaporation unit (32), a heat conduction unit (33), a water injection unit (34), and a water outlet unit (35). The heat conduction unit (33) conducts external heat to the evaporation unit (32), so that liquid water in seawater present on the evaporation unit (32) is evaporated into gaseous water, and the gaseous water is in contact with the main body unit (31) and is condensed into fresh water; the water injection unit (34) injects seawater into the evaporation unit (32) and can control the flow of injected seawater; and the water outlet unit (35) outputs fresh water outwards.

Description

High-efficiency seawater desalination equipment Technical Field

[0001] The present application relates to a seawater desalination device, and in particular to a high-efficiency seawater desalination device that improves the evaporation rate of liquid water. Background Art

[0002] Seawater can be distilled to produce distilled water, which is close to pure water and can be used as drinking water. See FIG. 1 , which is Taiwan Patent Certificate No. I499561, illustrating a portable solar heating device 11 for recycling wastewater or saltwater to produce desalinated water. The device is characterized by a liquid conduit 111 comprising a plurality of pipes or hoses connected to a wastewater supply port 112 and a desalinated water overflow port 113. The liquid conduit 111 is provided with a heating portion 114 that primarily faces sunlight to heat and evaporate wastewater, a vertical condensing portion 115 that condenses the freshwater and heated wastewater, a storage portion 116 disposed at the base of the portable solar heating device 111 to collect condensed freshwater, and a light energy collector 117 that focuses sunlight-generated heat energy onto an evaporation region within the heating portion 114.

[0003] Although prior art has disclosed a technology for using sunlight's thermal energy to desalinate salt water to obtain distilled water, it takes a considerable amount of time to heat room-temperature water to 100°C under sunlight. In particular, the amount of heat provided by sunlight is fixed. Therefore, for large amounts of salt water, a large amount of heat must be applied to raise the temperature. When the salt water's temperature rises slowly, the efficiency of seawater evaporation is reduced.

[0004] From the above description, we can understand that how to more efficiently utilize the energy of solar radiation to make salt water evaporate or boil more easily, thereby improving the collection efficiency of distilled water, is a goal that relevant technicians urgently need to work hard on.

[0005] Summary of the Invention

[0006] In view of this, the purpose of this application is to provide a high-efficiency seawater desalination device suitable for converting seawater into fresh water.

[0007] To achieve the above-mentioned purpose, the high-efficiency seawater desalination device includes a main unit, an evaporation unit, and a water injection unit.

[0008] The main body unit includes a first main body, a closed space surrounded and defined by the first main body, a fresh water tank arranged on the first main body and located in the closed space, and a condensation part arranged on the first main body and in contact with the closed space.

[0009] The evaporation unit includes a second main body arranged in the enclosed space, an evaporation tank surrounded and defined by the second main body, and a high-temperature portion arranged in the second main body and located at the bottom of the evaporation tank.

[0010] The water injection unit includes a water injection module connected to the first body, a flow control module connected to the water injection module, and a water injection port connected to the water injection module. The position of the water injection port corresponds to the evaporation unit. The water injection module outputs seawater and injects the seawater into the evaporation unit through the water injection port. The flow control module controls the flow of seawater injected into the high-temperature part.

[0011] Another technical means of the present application is that the above-mentioned high-efficiency seawater desalination device further includes an exhaust unit, which includes an exhaust module connected to the first main body, and the exhaust module is connected to the confined space to extract the air in the confined space and control the air pressure in the confined space.

[0012] Another technical means of the present application is that the above-mentioned high-efficiency seawater desalination device further includes an external condensation unit, which includes an external condensation body connected to the exhaust module. The exhaust module transfers the air in the enclosed space to the external condensation body, and the air condenses into fresh water when it contacts the external condensation body.

[0013] Another technical means of the present application is that the above-mentioned high-efficiency seawater desalination device further includes a water outlet unit, which includes a water outlet module connected to the first body, the water outlet module is connected to the fresh water tank, and the water outlet module outputs the fresh water in the fresh water tank to the outside.

[0014] Another technical means of the present application is that the above-mentioned high-efficiency seawater desalination device further includes a heat conduction unit, which includes a heat conductor that penetrates the first body and is connected to the second body. The heat conductor conducts external heat to the high-temperature portion on the second body, so that liquid water in the seawater present on the high-temperature portion evaporates into gaseous water. The gaseous water in the enclosed space condenses into fresh water when it contacts the condensation portion and falls into the fresh water tank.

[0015] Another technical means of the present application is that the above-mentioned heat conduction unit further includes a heating module connected to the heat conductor, the heat conduction unit further includes a heat conduction base connected to the heat conductor, and the water injection unit further includes a preheating module connected to the water injection module, and the preheating module heats the seawater of the water injection module to provide the water injection module output.

[0016] Another technical means of the present application is that the above-mentioned high-efficiency seawater desalination device further includes an external heating unit, which includes an external heating body spaced apart from the first body, a focusing surface with an arc set on the external heating body, and a heating setting part set on the external heating body. The second body can move between an external heating position and an internal fresh water position. When the second body is in the external heating position, it is set in the heating setting part, and the focusing surface focuses sunlight on the second body. When the second body is in the internal fresh water position, it is set in the enclosed space.

[0017] Another technical means of the present application is that the above-mentioned high-efficiency seawater desalination device further includes an external heating unit, which includes an external heating body arranged at a distance from the first main body, a focusing surface arranged on the external heating body and having a curvature, and a heating setting part arranged on the external heating body. The first main body structure is transparent and is arranged on the heating setting part, and the focusing surface focuses sunlight on the first main body.

[0018] Another technical means of the present application is that the external heating unit further includes a refractive focusing structure arranged on the first body, and the refractive focusing structure is provided with multiple refractive surfaces to refract and focus sunlight irradiated on the first body on the second body.

[0019] Another technical means of the present application is that the above-mentioned evaporation unit further includes an area expansion part connected to the high-temperature part, and the water injection module controls the amount of seawater injected into the high-temperature part so that the area occupied by seawater in the high-temperature part is smaller than the total area of ​​the high-temperature part.

[0020] The beneficial effect of the present application is that the high-efficiency seawater desalination device is installed on the ground, and sunlight generates geothermal heat underground. The heat conductor conducts the geothermal heat to the second main body, causing the temperature of the high-temperature part to rise. The water injection module controls the seawater to drip into the high-temperature part in a small flow rate, which can increase the evaporation rate of liquid water in the seawater, thereby further improving the speed of obtaining fresh water. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a perspective schematic diagram illustrating Taiwan Patent Certificate No. I499561, a portable solar heating device for recycling wastewater or salt water to produce desalinated water;

[0022] FIG2 is a side cross-sectional structural diagram of a first preferred embodiment of a high-efficiency seawater desalination device of the present application, illustrating a high-efficiency seawater desalination device having a water injection module and a water outlet module;

[0023] FIG3 is a side cross-sectional structural diagram of a second preferred embodiment of a high-efficiency seawater desalination device of the present application, illustrating a high-efficiency seawater desalination device having an exhaust module;

[0024] FIG4 is a side cross-sectional structural diagram of a third preferred embodiment of a high-efficiency seawater desalination device of the present application, illustrating a high-efficiency seawater desalination device using renewable energy;

[0025] FIG5 is a structural diagram of a fourth preferred embodiment of a high-efficiency seawater desalination device of the present application, illustrating a high-efficiency seawater desalination device using external heating;

[0026] FIG6 is a side cross-sectional structural diagram of a fifth preferred embodiment of a high-efficiency seawater desalination device of the present application, illustrating a high-efficiency seawater desalination device with reflective focusing;

[0027] FIG7 is a side cross-sectional structural diagram of a sixth preferred embodiment of a high-efficiency seawater desalination device of the present application, illustrating a high-efficiency seawater desalination device that first reflects and then refracts light to focus light;

[0028] FIG8 is a side cross-sectional structural diagram of a seventh preferred embodiment of a high-efficiency seawater desalination device of the present application, illustrating a structure for heating seawater using a heating block; and

[0029] FIG9 is a graph showing the vapor pressures of four liquids at different temperatures.

[0030] In the picture:

[0031] 31 Main unit; 311 First main body; 312 Enclosed space; 313 Fresh water retaining wall; 314 Fresh water tank; 315 Condensation part; 32 Evaporation unit; 321 Second main body; 322 Evaporation tank; 323 High temperature part; 324 Area expansion part; 325 Heating block; 33 Heat conduction unit; 331 Heat conductor; 332 Heating module; 333 Heat conduction base; 334 Renewable energy; 34 Water injection unit; 341 Water injection module; 342 Flow control module; 343 Water injection port; 344 Preheating module; 35 Water outlet unit; 351 Water outlet module; 36 Exhaust unit; 361 Exhaust module; 362 Check valve; 37 External condensation unit; 371 External condensation main body; 38 External heating unit; 381 External heating body; 382 Focusing surface; 383 Heating setting part; 384 Refraction focusing structure. DETAILED DESCRIPTION

[0032] The present application is further described below in conjunction with the accompanying drawings and seven specific embodiments so that those skilled in the art can better understand the present application and implement it, but the embodiments are not intended to limit the present application.

[0033] Please refer to Figure 2, which is a first preferred embodiment of a high-efficiency seawater desalination device of the present application. The high-efficiency seawater desalination device is suitable for converting seawater into fresh water. The high-efficiency seawater desalination device includes a main unit 31, an evaporation unit 32, a heat conduction unit 33, a water injection unit 34, and a water outlet unit 35.

[0034] The main unit 31 includes a first main body 311, a confined space 312 surrounded and defined by the first main body 311, a fresh water retaining wall 313 arranged on the first main body 311 and located at the bottom of the confined space 312, a fresh water tank 314 defined by the first main body 311 and the fresh water retaining wall 313, and a condensation portion 315 arranged on the first main body 311 and in contact with the confined space 312. The condensation portion 315 is the inner surface of the first main body 311. The temperature of the condensation portion 315 is lower than the temperature of the air in the confined space 312. Preferably, the temperature of the condensation portion 315 is controlled to be less than 30°C, but the present invention is not limited thereto. In addition, the main unit 31 may also be provided with the fresh water retaining wall 313.

[0035] The evaporation unit 32 includes a second body 321 disposed within the enclosed space 312, an evaporation tank 322 defined by the second body 321, and a high-temperature portion 323 disposed within the second body 321 and located at the bottom of the evaporation tank 322. The second body 321 is spaced apart from the freshwater retaining wall 313 to prevent the freshwater in the freshwater tank 314 from contacting the second body 321, thereby preventing heat from being absorbed or carried away by the freshwater. In the first preferred embodiment, the high-temperature portion 323 is the upper surface of the second body 321. The upper surface of the second body 321 is smooth and slightly curved downward, forming a shallow groove in the evaporation tank 322. This allows for easy removal of residual substances (salt) after evaporation of seawater in the evaporation tank 322. The second body 321 is made of a highly thermally conductive material.

[0036] The heat transfer unit 33 includes a heat conductor 331 extending through the first body 311 and connected to the second body 321. The heat conductor 331 primarily transfers external heat to the high-temperature portion 323 of the second body 321, raising the temperatures of the second body 321 and the high-temperature portion 323. This allows liquid water in the seawater on the surface of the high-temperature portion 323 to evaporate into vaporized water. The vaporized water in the enclosed space 312 condenses into fresh water upon contact with the condensation portion 315 and falls into the fresh water tank 314. In other words, this highly efficient seawater desalination device can extract fresh water from seawater. Preferably, the first body 311 is positioned on the ground, with the heat conductor 331 in contact with the ground. Since sunlight irradiating the ground increases the ground's heat, raising the ground's temperature, the heat conductor 331 transfers the ground's heat to the second body 321, thereby increasing the evaporation rate of liquid water in the seawater and, consequently, the amount of vaporized water in the air within the enclosed space 312.

[0037] The water injection unit 34 includes a water injection module 341 connected to the first body 311, a flow control module 342 connected to the water injection module 341, a water injection port 343 connected to the water injection module 341, and a preheating module 344 connected to the water injection module 341. The position of the water injection port 343 corresponds to the evaporation unit 32. The water injection module 341 outputs seawater and injects the seawater into the evaporation unit 32 through the water injection port 343. Preferably, the seawater output by the water injection module 341 is dripped into the high-temperature part 323 of the evaporation tank 322. The flow control module 342 controls the flow of the seawater injected into the high-temperature part 323. The flow control module 342 controls the water injection module 341. The water injection module 341 controls the flow of the seawater injected into the high-temperature part 323. The seawater in the part 323 is controlled so that the seawater dripped in per unit time can increase the contact area with the high-temperature part 323. For example, the water injection module 341 controls the speed of injecting seawater slowly and in small volume, so that the seawater drips into the high-temperature part 323 in a drop-by-drop manner. The area occupied by each drop of seawater in the high-temperature part 323 is smaller than the total area of ​​the high-temperature part 323 that can receive seawater. When the seawater drips and spreads, it can also increase the contact area with the high-temperature part 323, so that heat is quickly transferred and the temperature rises quickly. Because the temperature of the second body 321 itself is extremely high, the seawater dripping into the high-temperature part 323 can be immediately evaporated. According to the law of conservation of energy, a fixed amount of heat can heat a small amount of seawater, which can speed up the rate at which the seawater temperature rises. Among them, the water injection unit 34 can provide seawater in batches, which has a divide-and-conquer effect. The flow control module 342 can control the speed, amount and frequency of water supply of the water injection module 341, so as to

[0038] To obtain optimal evaporation parameters, preferably, the flow control module 342 has a temperature detector disposed on the second body 321 to control the flow of seawater injected into the high-temperature portion 323 according to the temperature of the second body 321 .

[0039] It's worth noting that the preheating module 344 can also directly heat the water injection unit 34. In other words, the preheating module 344 can be placed directly in the water storage tank to heat a large amount of seawater, allowing the seawater dripping onto the high-temperature portion 323 to evaporate more easily. The heating method of the preheating module 344 is not limited to electric heating; it can also utilize sunlight, fire, solar energy, and other heating methods. Once the seawater is heated by the preheating module 344, combined with air extraction technology, it can more easily evaporate the liquid water into gaseous water, thereby achieving a highly efficient seawater desalination device.

[0040] The preheating module 344 heats the seawater in the water injection module 341 to provide an output to the water injection module 341. The preheated seawater contacts the high-temperature portion 323 of the second body 321, facilitating evaporation, while other substances in the seawater (e.g., salt) remain in the evaporation tank 322. Alternatively, in actual implementation, the preheating module 344 may be omitted and the seawater to be injected may be preheated in the sun, for example, by placing the seawater storage tank directly in the sun. This also helps improve evaporation efficiency.

[0041] The water outlet unit 35 includes a water outlet module 351 connected to the first body 311. The water outlet module 351 is in communication with the freshwater tank 314 and discharges the freshwater from the tank 314. Preferably, the water outlet module 351 comprises a pump and a liquid level detector connected to the pump. The liquid level detector detects the level of the freshwater in the tank 314. When the liquid level detector detects that the freshwater in the tank 314 has reached a detection level, the pump is activated to pump the freshwater out. The pumped-out freshwater can be used as irrigation water. The water outlet module 351 also includes a check valve to prevent freshwater backflow and maintain the air pressure in the enclosed space 312.

[0042] It is worth mentioning that previous seawater desalination equipment requires the use of electricity, and the energy consumed by electricity will increase carbon emissions. Therefore, previous seawater desalination equipment is a carbon-increasing device. However, the main energy source of the high-efficiency seawater desalination device in this application comes from the sun, and is partially supplemented by renewable energy. It will not increase carbon emissions, and the fresh water produced is used for plant irrigation, which can also reduce carbon emissions. Many companies currently have to carry out "carbon management", and the cost of carbon is becoming more and more expensive. Therefore, the future direction of business operations must deploy "carbon rights". This application can provide very good carbon management, which is in line with the business direction of the company.

[0043] Please refer to Figure 3, which is a second preferred embodiment of a high-efficiency seawater desalination device of the present application. The second preferred embodiment is substantially the same as the first preferred embodiment, and the similarities are not described in detail here. The difference is that the high-efficiency seawater desalination device further includes an exhaust unit 36 ​​and an external condensation unit 37.

[0044] The exhaust unit 36 ​​includes an exhaust module 361 connected to the first body 311. The exhaust module 361 is connected to the enclosed space 312 for extracting air from the enclosed space 312 and controlling the air pressure in the enclosed space 312. The exhaust module 361 has a check valve 362 connected to the enclosed space 312 and an air pump connected to the check valve 362. These can prevent air from leaking back into the enclosed space 312 after the air pump of the exhaust module 361 is turned off, thereby maintaining the air pressure in the enclosed space 312. Preferably, the exhaust module 361 is an automatic exhaust motor that can detect the air pressure in the enclosed space 312. The exhaust module 361 maintains the air pressure in the enclosed space 312 at 0.1 Torr to 760 Torr, or other values, but is not limited thereto. In actual implementation, the exhaust module 361 can also be a manual vacuum pump or other equipment for extracting gas, but should not be limited thereto. The main purpose of the exhaust module 361 is to reduce the air pressure in the enclosed space 312, so as to reduce the boiling point of liquid water in seawater and further increase the evaporation rate of seawater on the second body 321. The exhaust module 361 can control the frequency of the exhaust and the amount of the exhaust to maintain the low-pressure environment of the enclosed space 312 and obtain the highest fresh water efficiency.

[0045] Please refer to Figure 9. The boiling point is defined as "the temperature at which the vapor pressure of a liquid equals the external atmospheric pressure." Figure 9 shows the vapor pressures of four liquids at different temperatures. The graph shows that water has a vapor pressure of 101.3 kPa (one atmosphere; the horizontal dashed line in the middle of the graph) at 100°C. In other words, when the external atmospheric pressure is one atmosphere, water's vapor pressure rises to 100°C, equaling one atmosphere. When the pressure drops to 0.1 atmosphere, water boils at approximately 50°C. For more information, please visit the following website: https: / / scigame.ntcu.edu.tw / water / water-019.html.

[0046] The external condensation unit 37 includes an external condensation body 371 connected to the air extraction module 361. The air extraction module 361 transfers air from the enclosed space 312 to the external condensation body 371. The air condenses into fresh water upon contact with the external condensation body 371. Preferably, the external condensation body 371 is a metal tube and is kept at a low temperature, below 30°C. Since the air extracted by the air extraction module 361 contains gaseous water, it condenses into fresh water upon contact with the external condensation body 371. In actual implementation, the external condensation body 371 may not be provided, and the present invention should not be limited thereto. In addition, during actual operation, the external condensation body 371 surrounds a closed space (not shown in the figure), and the external condensation body 371 is connected to a drainage module (not shown in the figure). A drainage control valve is provided between the drainage module and the external condensation body 371. The air in the closed space 312 extracted by the exhaust module 361 will enter the closed space of the external condensation body 371. Since the air containing gaseous water is continuously injected into the closed space of the external condensation body 371, the pressure in the closed space of the external condensation body 371 will rise. When the air pressure rises, the gaseous water naturally condenses into liquid water. The low temperature of the external condensation body 371 also helps the condensation speed. When the liquid water in the closed space of the external condensation body 371 reaches a set amount, the drainage control valve opens to discharge the liquid water outward. This should not be limited to the example of this preferred embodiment.

[0047] Please refer to FIG4 , which illustrates a third preferred embodiment of a high-efficiency seawater desalination device according to the present application. This third preferred embodiment is substantially similar to the first preferred embodiment, and the similarities are not further described here. The difference is that the evaporation unit 32 further includes an area-enhancing portion 324 connected to the high-temperature portion 323. Preferably, the area-enhancing portion 324 is gravel or sand placed in the evaporation tank 322. The primary purpose of the area-enhancing portion 324 is to increase the contact area between the seawater and the heat source, thereby accelerating the rise in seawater temperature. In actual implementation, the area-enhancing portion 324 can be a metal heat sink fin or other structure that increases the contact area between the seawater, but the invention is not limited thereto. In this third preferred embodiment, the upper surface of the second body 321 is recessed downwardly, giving the evaporation tank 322 a greater depth, further allowing the evaporation tank 322 to accommodate more area-enhancing portions 324. The high-temperature portion 323 is disposed on the second body 321 and located around the periphery of the evaporation tank 322.

[0048] The heat-conducting unit 33 further includes a heating module 332 connected to the heat conductor 331. The heat-conducting unit 33 further includes a heat-conducting base 333 connected to the heat conductor 331. Preferably, the heating module 332 is a heater that uses renewable energy 334 as electricity, which can heat the heat-conducting base 333. The renewable energy 334 used in this application is solar energy, and the heating electricity is obtained by solar power generation. In actual implementation, the heating module 332 can use other renewable energy 334, but should not be limited to this. The heat-conducting base 333 is a thick metal plate, but is not limited to this. The heat-conducting base 333 can transfer heat from the outside or the heating module 332 to the second body 321.

[0049] Please refer to Figure 5, which is a fourth preferred embodiment of a high-efficiency seawater desalination device of the present application. The fourth preferred embodiment is substantially the same as the first preferred embodiment, and the similarities are not described in detail here. The difference is that the high-efficiency seawater desalination device further includes an external heating unit 38.

[0050] The external heating unit 38 includes an external heating body 381 spaced apart from the first body 311, a curved light-collecting surface 382 disposed on the external heating body 381, and a heating portion 383 disposed on the external heating body 381. The second body 321 is movable between an external heating position and an internal freshwater position. When the second body 321 is in the external heating position, it is located on the heating portion 383, and the light-collecting surface 382 collects sunlight onto the second body 321 to heat it. When the second body 321 is in the internal freshwater position, it is located within the enclosed space 312. When the second body 321 is heated to a high temperature, the second body 321 is moved from the external heating position to the internal fresh water position. Preferably, the external heating unit 38 can heat the second body 321 to a high temperature of 50 to 80°C (or even higher) in a short time, and then move the second body 321 from the external heating position to the internal fresh water position. In actual implementation, the heating temperature of the second body 321 only needs to be above 50°C to move. In this state, the exhaust design of the second preferred embodiment can also be combined to reduce the ambient air pressure and make it easier for seawater to be converted into water vapor. However, in actual implementation, this should not be limited to this. The high-temperature second body 321 can also be directly used to increase the evaporation rate of seawater.

[0051] Please refer to Figure 6, which is a fifth preferred embodiment of a high-efficiency seawater desalination device of the present application. The fifth preferred embodiment is substantially the same as the first preferred embodiment, and the similarities are not described in detail here. The difference is that the high-efficiency seawater desalination device further includes an external heating unit 38.

[0052] The external heating unit 38 includes an external heating body 381 spaced apart from the first main body 311, a focusing surface 382 having an arc and provided on the external heating body 381, and a heating setting portion 383 provided on the external heating body 381. The first main body 311 is transparent in structure and is provided on the heating setting portion 383. The focusing surface 382 focuses sunlight on the first main body 311.

[0053] In the fifth preferred embodiment, the light-collecting surface 382 not only collects sunlight on the first body 311 , but also directly collects sunlight on the second body 321 , so as to increase the temperature of the second body 321 and thereby increase the evaporation rate of seawater.

[0054] Please refer to Figure 7, which is a sixth preferred embodiment of a high-efficiency seawater desalination device of the present application. The sixth preferred embodiment is substantially the same as the first preferred embodiment, and the similarities are not described in detail here. The difference is that the external heating unit 38 further includes a refractive focusing structure 384 disposed on the first body 311.

[0055] Preferably, the refractive focusing structure 384 is provided with a complex refractive surface, the structure of which corresponds to the position of the second body 321, so as to refract and focus the sunlight irradiated on the first body 311 on the second body 321, thereby increasing the temperature of the second body 321 and accelerating the evaporation rate of seawater in the evaporation tank 322.

[0056] It is worth mentioning that the high-efficiency seawater desalination device of the present application can be installed in a desert environment. Not only does it have strong sunlight, but it can also use local materials. Gravel or sand in the environment is placed in the evaporation tank 322 to form the area expansion part 324. As long as there is sunlight, clean fresh water can be obtained, and the obtained water can be guided to the plant area for irrigation.

[0057] Referring to Figure 8, a seventh preferred embodiment of a high-efficiency seawater desalination device of the present application is shown. The seventh preferred embodiment is substantially the same as the first preferred embodiment, and the similarities are not described in detail here. The difference is that the evaporation unit 32 further includes a heating block 325 connected to the second body 321, and the heating block 325 can transfer heat to the high-temperature portion 323.

[0058] In the seventh preferred embodiment, the heat conductor 331 is disposed in the enclosed space 312 of the first body 311, the second body 321 is placed on the heat conductor 331, the high-temperature portion 323 is in contact with the heat conductor 331, and the heating block 325 is in contact with the heat conductor 331. The heating block 325 can be heated on the outside of the first body 311 and then moved to be placed on the heat conductor 331. The heat of the heating block 325 can be transferred to the high-temperature portion 323 through the heat conductor 331. When seawater drips onto the upper surface of the high-temperature portion 323, it will immediately heat up and evaporate the seawater.

[0059] The applicant would like to emphasize that the heat of vaporization of water is 40.8 kJ / mole, equivalent to 2266 kJ / kg. Under standard conditions, the energy required to evaporate water from liquid to gas at its boiling point is five times the energy required to heat water from 0°C to 100°C. This application utilizes techniques such as controlling the amount of seawater injected, varying the pressure in the evaporation environment, and utilizing various external heating designs to supplement and direct external energy, to achieve faster seawater vaporization.

[0060] From the above description, it can be seen that the high-efficiency seawater desalination device of the present application does have the following effects:

[0061] 1. Accelerate the evaporation rate of water:

[0062] The heat conducting unit 33 can conduct external heat to the second body 321, and the temperature of the second body 321 can be increased. The external heating unit 38 can also further increase the temperature of the second body 321. The area expansion part 324 can increase the contact area between seawater and the heat source. The water injection unit 34 can control the amount of seawater in the evaporation tank 322, and even inject seawater in a dripping manner, so that the liquid water in the seawater can be quickly evaporated and other substances in the seawater can be retained in the evaporation tank 322.

[0063] 2. Lower the boiling point of water:

[0064] The main purpose of the air extraction unit 36 ​​is to reduce the air pressure in the enclosed space 312, thereby lowering the boiling point of the liquid water in the seawater. Therefore, when the temperature of the high-temperature portion 323 on the second body 321 rises, the liquid water in the seawater can be more easily vaporized into gaseous water. Therefore, the air extraction unit 36 ​​can indeed lower the boiling point of water.

[0065] 3. Improve the acquisition rate of fresh water:

[0066] Continuing from the above, since the present application can not only lower the boiling point of water to increase the evaporation rate of water, but also utilize the heat conduction unit 33 and the external heating unit 38 to increase the temperature of the second body 321, so that the temperature of the seawater rises rapidly and evaporates quickly, thereby increasing the content of gaseous water in the enclosed space 312. Finally, the condensation unit 315 is used to obtain gaseous water in the air and convert it into fresh water, thereby increasing the speed of fresh water collection.

[0067] 4. It helps plant trees and sequester carbon:

[0068] The high-efficiency seawater desalination device of this application can make good use of energy from the sun to obtain fresh water. Compared with the high-energy-consuming membrane seawater desalination technology, it is more environmentally friendly. In addition to being available for drinking by humans and livestock and for irrigating crops, the fresh water produced can also be used to plant forests, capture carbon dioxide in the air, and convert it into solid carbon, forming a long-term and stable "carbon sink" (carbon dioxide "warehouse"), which helps to reduce the concentration of carbon dioxide in the atmosphere and thus alleviate global warming. As the threat of extreme climate becomes increasingly severe, paying attention to ESG, doing a good job of "carbon management" and implementing carbon reduction commitments have now become "must-do questions" for business operations. Companies that ignore this link are likely to face the risk of losing orders directly. In this regard, this application helps to plant trees and fix carbon in arid environments, and can provide companies with a powerful "carbon management" tool. It can even be used to deploy the development of "carbon rights" and create new profit channels for companies.

[0069] This design combines multiple factors—high temperature, flow, and surface area—that contribute to improved evaporation efficiency within a single device. High temperature, in addition to utilizing a heat transfer unit to draw in ground heat, also allows for a variety of external heating designs to introduce more solar heat into the main unit, thereby increasing the total heat within the unit and significantly improving evaporation efficiency. Flow lowers the boiling point of seawater by extracting air, making it easier for liquid water in the seawater to evaporate or boil into vapor. Surface area reduces the amount of seawater injected, allowing the limited heat in the high-temperature section 323 to heat a small amount of seawater, resulting in rapid and complete evaporation. By combining these multiple approaches, maximum evaporation efficiency is achieved under specific circumstances (with or without sunlight, with or without additional electricity), resulting in maximum freshwater production.

[0070] In summary, the first body 311 can seal the enclosed space 312, and the air extraction unit 36 ​​can be used to reduce the air pressure in the enclosed space 312, thereby lowering the boiling point of water. The heat conduction unit 33 and the external heating unit 38 can increase the temperature of the second body 321, thereby increasing the evaporation rate of liquid water in the seawater. The water injection unit 34 injects a small amount of seawater into the evaporation tank 322, which can cause the seawater to evaporate immediately, thereby effectively achieving the purpose of this application.

[0071] The above-described embodiments are merely seven preferred embodiments for the purpose of fully illustrating the present application, and the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art based on the present application are within the scope of protection of the present application. The scope of protection of the present application shall be subject to the claims.

Claims

1. An efficient seawater desalination device, suitable for converting seawater into fresh water, comprising: A main body unit, comprising a first main body, a closed space surrounded and defined by the first main body, a fresh water tank disposed in the first main body and located in the closed space, and a condensation portion disposed in the first main body and in contact with the closed space; an evaporation unit, comprising a second body connected to the first body and disposed in the enclosed space, an evaporation tank defined by the second body, and a high-temperature portion disposed in the second body and connected to the evaporation tank; and A water injection unit includes a water injection module connected to the first body, a flow control module connected to the water injection module, and a water injection port connected to the water injection module, the position of the water injection port corresponds to the evaporation unit, the water injection module outputs seawater and injects the seawater into the evaporation unit through the water injection port, and the flow control module controls the flow of the seawater injected into the high temperature part.

2. The high-efficiency seawater desalination device as described in claim 1 further comprises an exhaust unit, which includes an exhaust module connected to the first body, and the exhaust module is connected to the enclosed space to extract the air in the enclosed space and control the air pressure in the enclosed space.

3. The efficient seawater desalination device as described in claim 2 further comprises an external condensation unit, which includes an external condensation body connected to the exhaust module, the exhaust module transmits the air in the enclosed space to the external condensation body, and the air condenses into fresh water when it contacts the external condensation body.

4. The high-efficiency seawater desalination device as described in claim 1 further comprises a water outlet unit, the water outlet unit comprises a water outlet module connected to the first body, the water outlet module is connected to the fresh water tank, and the water outlet module outputs the fresh water in the fresh water tank to the outside.

5. The high-efficiency seawater desalination device as described in claim 1 further comprises a heat conduction unit, which includes a heat conductor that penetrates the first body and is connected to the second body, and the heat conductor conducts external heat to the high-temperature portion on the second body, so that liquid water in the seawater on the high-temperature portion evaporates into gaseous water, and the gaseous water in the enclosed space contacts the condensation portion to condense into fresh water and fall into the fresh water tank.

6. The high-efficiency seawater desalination device according to claim 5, wherein: The heat conduction unit further includes a heating module connected to the heat conductor, the heat conduction unit further includes a heat conduction base connected to the heat conductor, and the water injection unit further includes a preheating module connected to the water injection module, the preheating module heats the seawater of the water injection module to provide the water injection module output.

7. The high-efficiency seawater desalination device as described in claim 1 further comprises an external heating unit, which includes an external heating body spaced apart from the first body, a focusing surface arranged on the external heating body and having an arc, and a heating setting part arranged on the external heating body, the second body can move between an external heating position and an internal fresh water position, when the second body is located at the external heating position, it is arranged at the heating setting part, and the focusing surface focuses sunlight on the second body, when the second body is located at the internal fresh water position, it is arranged in the enclosed space.

8. The high-efficiency seawater desalination device as described in claim 1 further comprises an external heating unit, which includes an external heating body spaced apart from the first main body, a focusing surface provided on the external heating body and having an arc, and a heating setting part provided on the external heating body, the first main body structure is transparent and is provided on the heating setting part, and the focusing surface focuses sunlight on the first main body.

9. The high-efficiency seawater desalination device according to claim 8, wherein: The external heating unit further comprises a refraction and light-collecting structure arranged on the first body, and a plurality of refraction curved surfaces are arranged on the refraction and light-collecting structure to refract and collect sunlight irradiated on the first body on the second body.

10. The high-efficiency seawater desalination device according to claim 1, wherein: The evaporation unit further includes an area enlargement portion connected to the high temperature portion, and the water injection module controls the amount of seawater injected into the high temperature portion so that the area occupied by the seawater in the high temperature portion is smaller than the total area of ​​the high temperature portion.

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