A seawater evaporation condensation device

Abstract

This invention relates to a seawater evaporation and condensation device, belonging to the technical field of seawater desalination. It includes a shell containing an evaporation cylinder with an evaporation chamber. A condensation chamber is formed between the evaporation cylinder and the shell, and the tops of the evaporation chamber and condensation chamber are connected. A condensation structure is provided in the condensation chamber. Seawater enters the evaporation chamber, and sunlight shines on the shell. After evaporation, the seawater escapes from the top of the evaporation chamber into the condensation chamber. The condensation structure lowers the temperature of the inner wall of the condensation chamber. Due to sunlight, the temperature at the top of the shell is higher than that of the inner wall of the condensation chamber, causing the steam to preferentially condense on the inner wall of the condensation chamber. This effectively reduces the amount of sunlight blocked by steam condensation at the top of the shell. The condensed steam forms fresh water. By utilizing sunlight to evaporate seawater and using the condensation structure to condense the evaporated seawater, no additional drive source is required, thus reducing the cost and improving the efficiency of seawater desalination collection.

Description

Technical Field

[0001] This invention application relates to the technical field of seawater evaporation and desalination, and in particular to a seawater evaporation and condensation device. Background Technology

[0002] With the continuous development and progress of society, the demand for freshwater resources from all walks of life is increasing day by day. Seawater desalination is a technology that uses seawater to produce freshwater. Seawater is collected and desalinated for production and daily life. Most common seawater desalination collection equipment is relatively large and complex in structure, requiring a lot of electricity or other energy support. When the equipment fails and needs maintenance, it takes a lot of time and money, thus increasing the cost of seawater desalination.

[0003] In related technologies, one can refer to Chinese invention patent with authorized application number CN202110039177.2, which discloses a marine freshwater collection device, including a freshwater condensation collection plate, a floating chassis, a wave-proof wall, a freshwater collection port, a freshwater collection bucket, a freshwater collection pipe, and a freshwater storage tank. On sunny days, the device uses the greenhouse effect of direct sunlight or concentrated sunlight to evaporate the seawater inside the device, and then collects it through the freshwater condensation collection plate to obtain freshwater. On rainy days, the device directly collects rainwater using a funnel-shaped freshwater condensation collection plate to obtain freshwater.

[0004] When sunlight shines directly on the freshwater condensation collection plate and the wave-breaking wall, the seawater inside the wave-breaking wall is heated, evaporates, and rises. The rising water vapor condenses upon contact with the freshwater condensation collection plate and slides down the inclined wall of the condensation collection plate into the freshwater collection tank. However, when sunlight shines on the freshwater condensation collection plate, the temperature of the plate also rises, thus reducing the condensation effect of the water vapor. Furthermore, there is a probability that the condensed freshwater will fall directly into the cavity between the wave-breaking wall and the freshwater collection tank. Although this reduces the cost of seawater desalination collection, it also reduces the efficiency of seawater desalination collection. Summary of the Invention

[0005] In order to save on seawater desalination collection costs and improve seawater desalination collection efficiency, this invention application provides a seawater evaporation and condensation device.

[0006] This application provides a seawater evaporation and condensation device, which adopts the following technical solution:

[0007] A seawater evaporation and condensation device includes a shell, an evaporation cylinder inside the shell, an evaporation chamber inside the evaporation cylinder, a water inlet at the bottom of the evaporation chamber for seawater to enter, a condensation chamber formed between the evaporation cylinder and the shell, the evaporation chamber and the condensation chamber being connected at their tops, a condensation structure being provided in the condensation chamber, and a collection component for collecting fresh water being provided inside the shell.

[0008] By adopting the above technical solution, seawater enters the evaporation chamber through the water supply port. Sunlight shines on the shell, causing the seawater in the evaporation chamber to evaporate. After evaporation, the seawater escapes from the top of the evaporation chamber to the condensation chamber. The condensation structure lowers the temperature of the inner wall of the condensation chamber. The evaporated seawater comes into contact with the inner wall of the condensation chamber, cools down, and condenses to form fresh water. The fresh water collects in the condensation chamber and is collected by a collection device, thereby realizing the desalination and collection of seawater. By using sunlight to evaporate the seawater and combining it with the condensation structure to condense the evaporated seawater, no additional drive source is required, thus reducing the cost of seawater desalination and collection and improving the efficiency of seawater desalination and collection.

[0009] Optionally, the condensation structure includes a plurality of capillary channels arranged vertically on the shell, and the plurality of capillary channels are arranged sequentially along the circumference of the shell.

[0010] By employing the above technical solution, the shell is placed in a seawater environment. Seawater enters the evaporation chamber through the water inlet. The seawater in the capillary channels is transported from the bottom to the top of the capillary channels by capillary action. Sunlight shines on the shell, which is equipped with capillary channels all around its circumference. The seawater at the top of the capillary channels vaporizes and evaporates. The heat required for vaporization is supplied by the sensible heat released from the decrease in the water's own temperature and by the sunlight, causing the water to cool down. As the water temperature drops, a temperature difference appears between the water and the air. The air generates sensible heat due to this temperature difference, which is then transferred to the air. The water body continues to cool, releasing sensible heat to compensate for the insufficient heat from water vaporization. As a result, the water temperature continues to drop, causing thermal convection with the inner wall surface, which in turn lowers the temperature of the inner wall surface. No additional energy supply equipment is needed; the evaporated seawater can be condensed simply by combining sunlight with capillary channels. After evaporation, the seawater in the evaporation chamber rises and escapes into the condensation chamber, where it cools and condenses upon contact with the inner wall of the shell. The condensed freshwater is then collected by a collector, thus reducing the cost of seawater desalination and improving its efficiency.

[0011] Optionally, the housing includes a lower housing and an upper housing, the capillary channel is disposed on the outer surface of the lower housing, the evaporator is disposed inside the lower housing, and the upper housing is fastened to the top of the lower housing and located above the evaporator.

[0012] By adopting the above technical solution, when sunlight shines on the upper and lower shells, the temperature of the inner surface of the lower shell is lower than that of the inner surface of the upper shell because the capillary channel is located on the outer surface of the lower shell. After the seawater evaporates, the steam preferentially chooses the inner wall surface for condensation, thereby effectively reducing the probability that the seawater evaporation chamber cannot work continuously and reliably due to the condensation of steam at the top of the shell blocking sunlight. Therefore, the efficiency of seawater desalination and collection is improved.

[0013] Optionally, the lower shell is surrounded by an outer shell, and there is a condensation space between the outer shell and the lower shell. The bottom of the condensation space is provided with a water inlet channel for seawater to enter. The outer surface of the outer shell has multiple vertically arranged capillary channels, which are arranged sequentially along the circumference of the outer shell. The top of the outer shell is connected to the upper shell through a connecting shell. The outer shell is provided with a liquid collecting device for collecting fresh water.

[0014] By adopting the above technical solution, seawater located below the evaporation chamber enters the evaporation chamber through the water supply inlet. Seawater located between the outer shell and the lower shell enters the condensation space through the water inlet channel. Seawater located outside the outer shell is transported from the bottom to the top of the capillary channel. Sunlight shines on the connecting shell and the outer shell, causing the seawater at the top of the capillary channel to vaporize and evaporate. The heat of vaporization required is supplied by the sensible heat released by the decrease in the water's own temperature and by the sunlight, causing the water to cool down. After the water temperature drops, a temperature difference appears between the water and the air. The air generates sensible heat due to this temperature difference, which is transferred to the water. The water temperature continues to drop, releasing sensible heat to compensate for the insufficient heat from water vaporization. As a result, the water temperature continues to decrease, leading to thermal convection with the inner wall of the outer shell. This causes the inner wall temperature of the outer shell to decrease. Seawater in the condensation space is heated and vaporized, then cools and condenses upon encountering the inner wall of the outer shell. Simultaneously, seawater evaporating from the capillary channels on the outer surface of the lower shell also cools and condenses upon encountering the inner wall of the outer shell. The condensed freshwater is collected by the liquid collection device, thus achieving multi-stage recycling of seawater. This reduces the cost of seawater desalination collection while improving its efficiency.

[0015] Optionally, both the upper housing and the connecting housing are made of light-transmitting material.

[0016] By adopting the above technical solution, the light-transmitting material reduces the absorption of sunlight, thereby increasing the efficiency of seawater evaporation caused by sunlight and thus improving the efficiency of seawater desalination and collection.

[0017] Optionally, the collecting component is a liquid collecting plate, which is disposed inside the lower shell. The evaporation cylinder is fixed on the liquid collecting plate, and a liquid collecting cavity is formed between the liquid collecting plate and the lower shell. The liquid collecting cavity is located below the evaporation chamber and the condensation chamber. The liquid collecting plate is provided with a liquid guiding hole, which connects the condensation chamber and the liquid collecting cavity.

[0018] By adopting the above technical solution, the seawater in the evaporation chamber evaporates and escapes into the condensation chamber. After the steam comes into contact with the inner wall of the lower shell, it cools down and condenses into fresh water. The fresh water slides down the inner wall of the lower shell to the liquid collection plate and is collected on the liquid collection plate. The fresh water enters the liquid collection chamber through the liquid guide hole for collection, thereby realizing the collection of fresh water. All the condensed fresh water in the condensation chamber can drip onto the liquid collection plate, thereby improving the efficiency of seawater desalination collection.

[0019] Optionally, the liquid collecting plate includes a liquid collecting part, a vertical part, and a liquid guiding part integrally formed together. The liquid collecting part is fixed on the inner wall of the lower shell and extends horizontally inward. The vertical part is located at the end of the liquid collecting part away from the inner wall of the lower shell and extends upward. A liquid guiding groove is formed between the liquid collecting part and the vertical part and the lower shell. The liquid guiding hole is provided on the liquid collecting part and communicates with the liquid guiding groove and the liquid collecting cavity. The liquid guiding part is located at the end of the vertical part away from the liquid collecting part. The evaporation cylinder is provided on the liquid guiding part.

[0020] By adopting the above technical solution, the seawater in the evaporation chamber evaporates and escapes into the condensation chamber. Some of the steam condenses after contacting the inner wall of the upper shell and drips directly from the top wall of the upper shell onto the liquid guiding part. After flowing through the liquid guiding part and passing through the vertical part, it collects in the liquid guiding groove. The remaining steam condenses after contacting the inner wall of the lower shell and slides down the inner wall of the lower shell into the liquid guiding groove. Fresh water in the liquid guiding groove enters the collection chamber through the liquid guiding hole for collection. This achieves the collection of desalinated seawater. The fresh water collects in the liquid guiding groove to reduce the probability of fresh water accumulating on the liquid guiding part and causing cooling of the evaporation cylinder, thereby improving the efficiency of seawater evaporation and thus improving the efficiency of seawater desalination collection.

[0021] Optionally, the liquid guiding holes are multiple, and the multiple liquid guiding holes are spaced apart on the liquid collecting part.

[0022] By adopting the above technical solution, fresh water in the liquid guiding tank enters the liquid collection chamber through multiple liquid guiding holes, thereby improving the efficiency of fresh water collection.

[0023] Optionally, the liquid collecting component includes a water collecting plate and a water guiding plate. The water collecting plate is fixed on the inner wall of the outer shell and extends upward. A water collecting cavity is formed between the water collecting plate and the outer shell. The water guiding plate is disposed in the water collecting cavity and extends horizontally. The water guiding plate has a water guiding hole for guiding condensate into the water collecting cavity.

[0024] By adopting the above technical solution, the seawater in the condensation space evaporates and dissipates. Some of the steam condenses after contacting the inner wall of the connecting shell and drips onto the water guide plate. The remaining steam condenses after contacting the inner wall of the outer shell and slides down onto the water guide plate. The fresh water on the water guide plate enters the water collection chamber through the water guide hole, thereby realizing the collection of desalinated seawater in the condensation space and improving the efficiency of seawater desalination collection.

[0025] Optionally, a water supply pipe is provided at the bottom of the lower housing, which passes through the liquid collection chamber and the water supply port and communicates with the evaporation chamber.

[0026] By adopting the above technical solution, the shell is placed in a seawater environment, and seawater enters the evaporation chamber through the water supply pipe, so that the liquid level of the seawater in the evaporation chamber is the same as the liquid level of the external seawater environment. After the seawater evaporates, seawater continues to enter from the water supply pipe to achieve the supply of seawater, without the need for additional water supply equipment, thereby reducing the cost of seawater desalination and collection.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. Seawater enters the evaporation chamber through the water supply inlet. Sunlight shines on the shell, causing the seawater in the evaporation chamber to evaporate. After evaporation, the seawater escapes from the top of the evaporation chamber to the condensation chamber. The condensation structure lowers the temperature of the inner wall of the condensation chamber. The evaporated seawater comes into contact with the inner wall of the condensation chamber, cools down, and condenses to form fresh water. The fresh water collects in the condensation chamber and is collected by a collection device, thus realizing the desalination and collection of seawater. By utilizing sunlight to evaporate the seawater and combining it with the condensation structure to condense the evaporated seawater, no additional drive source is required, thereby reducing the cost of seawater desalination and collection and improving the efficiency of seawater desalination and collection.

[0029] 2. By placing the shell in a seawater environment, the sunlight causes the temperature of the top glass of the shell to be higher than that of the inner wall of the condensation chamber. Steam preferentially chooses the inner wall of the condensation chamber for condensation, thereby effectively reducing the amount of light blocked by the top glass due to steam condensation. This reduces the cost of seawater desalination collection and improves the efficiency of seawater desalination collection.

[0030] 3. Seawater located between the outer shell and the lower shell enters the condensation space through the inlet channel. Seawater outside the outer shell is transported from the bottom to the top of the capillary channel. Sunlight shines on the connecting shell and the outer shell, causing the seawater to evaporate and its temperature to drop continuously. This results in thermal convection with the inner wall of the outer shell, further reducing its temperature. Seawater in the condensation space, heated and vaporized, condenses upon encountering the inner wall of the outer shell. Simultaneously, seawater evaporating from the capillary channel on the outer surface of the lower shell also condenses upon encountering the inner wall of the outer shell. The condensed freshwater is collected by the liquid collection device, thus achieving multi-stage recycling of seawater. The multi-stage wall design effectively utilizes the phase change of seawater, recovering water vapor escaping from the lower outer wall through the higher inner wall, collecting it layer by layer to increase freshwater production. This reduces the cost of seawater desalination and improves its efficiency.

[0031] 4. The capillary channel design on the outer wall of the casing can reduce the need for a water pump. Utilizing capillary force, water can be easily drawn to a higher position, and water can be continuously transported to maintain the water level in the channel. The cooling effect of the wet-bulb temperature of the water can greatly reduce the cost of steam recovery. The design on the four walls can effectively utilize direct sunlight at different angles, so that the water in the channel can be continuously and efficiently cooled, avoiding unstable evaporation of the water in the channel due to different angles of sunlight.

[0032] 5. After the seawater in the evaporation chamber evaporates, it escapes into the condensation chamber. The steam comes into contact with the inner wall of the lower shell and cools down to condense into fresh water. The fresh water slides down the inner wall of the lower shell to the collection plate and collects on the collection plate. The fresh water enters the collection chamber through the liquid guide hole for collection, thus realizing the collection of fresh water. All the condensed fresh water in the condensation chamber can drip onto the collection plate, thereby improving the efficiency of seawater desalination collection.

[0033] 6. The device is simple and portable, occupies little space, has low requirements for the installation environment, and is inexpensive. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of this application;

[0035] Figure 2 This is a sectional view of the overall structure of this application;

[0036] Figure 3 This is a top view of the present application, in which the upper shell and the connecting shell are partially sectionally viewed;

[0037] Figure 4 yes Figure 2 Enlarged schematic diagram of part A in the middle.

[0038] Reference numerals: 1. Shell; 11. Lower shell; 12. Upper shell; 13. Insertion groove; 14. Water supply pipe; 2. Evaporation cylinder; 21. Evaporation chamber; 22. Water supply port; 3. Condensation chamber; 31. Condensation structure; 311. Capillary channel; 4. Liquid collecting plate; 41. Liquid collecting part; 411. Liquid guiding groove; 42. Vertical part; 43. Liquid guiding part; 44. Liquid guiding hole; 5. Liquid collecting cavity; 6. Outer shell; 61. Condensation space; 62. Water inlet channel; 63. Connecting shell; 7. Liquid collecting component; 71. Water collecting plate; 711. Horizontal part; 712. Vertical part; 72. Water guiding plate; 721. Water guiding hole; 73. Water collecting cavity; 74. Water guiding groove. Detailed Implementation

[0039] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0040] This application discloses a seawater evaporation and condensation device.

[0041] Reference Figure 1 and Figure 2 A seawater evaporation and condensation device includes a shell 1, an evaporation cylinder 2 inside the shell 1, an evaporation chamber 21 inside the evaporation cylinder 21, a water inlet 22 for seawater to enter at the bottom of the evaporation chamber 21, a condensation chamber 3 between the evaporation cylinder 2 and the shell 1, the top of the evaporation chamber 21 and the condensation chamber 3 are connected, a condensation structure 31 is provided at the condensation chamber 3, and a collection component for collecting fresh water is provided inside the shell 1.

[0042] Reference Figure 1 and Figure 2 The housing 1 includes a lower housing 11 and an upper housing 12. A condensation structure 31 is disposed on the outer surface of the lower housing 11. The condensation structure 31 includes a plurality of capillary channels 311 vertically disposed on the housing 1. The plurality of capillary channels 311 are arranged sequentially along the circumference of the lower housing 11. An evaporator 2 is disposed inside the lower housing 11. An insertion groove 13 is provided at the top of the lower housing 11. The insertion groove 13 extends around the top of the lower housing 11. The upper housing 12 is fastened in the insertion groove 13 at the top and is located above the evaporator 2. The upper housing 12 is made of a light-transmitting material. In this embodiment, glass is selected. In other embodiments, the upper housing 12 can be made of any light-transmitting material.

[0043] Reference Figure 1 and Figure 2 The lower shell 11 is surrounded by an outer shell 6, which surrounds the outer surface of the lower shell 11. The height of the outer shell 6 is less than the height of the lower shell 1, and there is a condensation space 61 between the inner wall of the outer shell 6 and the outer surface of the lower shell 1. The bottom of the condensation space 61 is provided with a water inlet channel 62 for seawater to enter. The outer surface of the outer shell 6 has a plurality of vertically arranged capillary channels 311, which are arranged sequentially along the circumference of the outer shell 6.

[0044] Reference Figure 1 and Figure 2 The top of the outer shell 6 is connected to the upper shell 12 via a connecting shell 63, and the top of the connecting shell 63 is flush with the top of the upper shell 12. The connection method between the outer shell 6 and the connecting shell 63 is the same as the connection method between the lower shell 11 and the upper shell 12, and will not be described again here. The connecting shell 63 is made of a light-transmitting material; in this embodiment, glass is used. In other embodiments, the connecting shell 63 can be made of any light-transmitting material. (Refer to...) Figure 2 and Figure 3The collecting component is located inside the lower housing 11. The collecting component is a liquid collecting plate 4. The liquid collecting plate 4 is located inside the lower housing 11 and includes a liquid collecting part 41, a vertical part 42 and a liquid guiding part 43 integrally formed together. The liquid collecting part 41 is fixed on the four inner walls of the lower housing 11 and extends horizontally inward. The vertical part 42 is located at the end of the liquid collecting part 41 away from the inner wall of the lower housing 11 and extends upward. A liquid guiding groove 411 is formed between the liquid collecting part 41 and the vertical part 42 in the lower housing 11. The liquid guiding part 43 is located at the end of the vertical part 42 away from the liquid collecting part 41, and the evaporation cylinder 2 is fixed on the upper surface of the liquid guiding part 43.

[0045] Reference Figure 2 and Figure 3 In this embodiment, the projections of the lower shell 11, upper shell 12, outer shell 6, and connecting shell 63 in the vertical direction are square, and the projection of the evaporator 2 in the vertical direction is circular. In other embodiments, the shapes of the upper shell 11, lower shell 12, outer shell 6, connecting shell 63, and evaporator 2 can be selected according to actual conditions, and this application does not impose any restrictions.

[0046] Reference Figure 2 and Figure 3 A liquid collecting chamber 5 is formed between the liquid collecting part 41, the vertical part 42 and the liquid guiding part 43 and the inner bottom wall of the lower shell 11. The liquid collecting chamber 5 is located below the evaporation chamber 21 and the condensation chamber 3. The liquid collecting plate 4 is provided with liquid guiding holes 44, which connect the condensation chamber 3 and the liquid collecting chamber 5. There are multiple liquid guiding holes 44, which are spaced apart on the liquid collecting part 41 and are used to connect the liquid guiding groove 411 and the liquid collecting chamber 5.

[0047] Reference Figure 2 and Figure 3 The bottom of the lower shell 11 is provided with a water supply pipe 14, which passes through the liquid collection chamber 5 and the water supply port 22 and is connected to the evaporation chamber 21 to transport seawater.

[0048] Reference Figure 2 , Figure 3 and Figure 4 The outer shell 6 is provided with a liquid collecting component 7 for collecting fresh water. The liquid collecting component 7 includes a water collecting plate 71 and a water guiding plate 72. The water collecting plate 71 includes a horizontal part 711 and a vertical part 712 integrally formed. The horizontal part 711 is fixed on the four inner bottom walls of the outer shell 6 and extends horizontally inward. The vertical part 712 is located at the end of the horizontal part 711 near the lower shell 11 and extends vertically upward. A water collecting cavity 73 is formed between the inner wall of the outer shell 6, the horizontal part 711 and the vertical part 712.

[0049] Reference Figure 2 , Figure 3 and Figure 4The water guide plate 72 is fixed on the inner wall of the water collection cavity 73, and the opposite side walls of the water guide plate 72 are respectively fixed to the inner wall of the outer shell 6 and the vertical part 712. A water guide groove 74 is formed between the water guide plate 72, the vertical part 712 and the inner wall of the outer shell 6. The water guide groove 74 is located above the water collection cavity 73. The water guide plate 72 has multiple water guide holes 721 that guide condensate into the water collection cavity 73. The multiple water guide holes 721 are spaced apart on the water guide plate 72 and are used to connect the water guide groove 74 and the water collection cavity 73.

[0050] Reference Figure 2 and Figure 3 The upper shell 12 is fastened onto the lower shell 11, and the connecting shell 63 is fastened onto the outer shell 6. The lower shell 11 and the outer shell 6 are placed in a seawater environment. Some seawater enters the evaporation chamber 21 through the water supply pipe 14, and some seawater enters the condensation space 61 through the water inlet channel 62. The liquid level of the seawater entering the condensation space 61 is lower than the height of the vertical part 712. Sunlight shines through the top of the upper shell 12 and the connecting shell 62 onto the surface of the seawater located in the evaporation chamber 21 and the condensation space 61. The seawater is heated and evaporates. The steam in the evaporation chamber 21 rises and escapes from the evaporation chamber 21 into the condensation chamber 3. Some of the steam condenses into fresh water after contacting the inner top wall of the upper shell 12 and drips onto the liquid guiding part 43. Some of the steam in the condensation space 61 condenses into fresh water after contacting the inner top wall of the connecting shell 63 and drips onto the water guiding plate 72. Some of the steam escapes and condenses into fresh water after contacting the inner wall of the outer shell 6 and collects on the water guiding plate 72.

[0051] Reference Figure 2 and Figure 3 Seawater on the outer surface of the lower shell 11 enters the capillary channel 311 and moves from the bottom to the top of the capillary channel 311 under capillary action. Sunlight shines on the capillary channel 311, and the seawater at the top of the capillary channel 311 evaporates and vaporizes. The heat of vaporization required for vaporization is supplied by the sensible heat released by the decrease in the temperature of the water itself and the sunlight, causing the water to cool down. After the water temperature drops, a temperature difference appears between the water and the air. The air generates sensible heat due to this temperature difference and transfers it to the water. However, the water temperature continues to drop and releases sensible heat to compensate for the insufficient heat from the vaporization of water. Therefore, the water temperature continues to drop, resulting in thermal convection with the inner wall of the lower shell 11, which lowers the temperature of the inner wall. At the same time, under the sunlight, the temperature of the glass at the top of the upper shell 12 is higher than that of the inner wall of the condensation chamber 3. The steam preferentially chooses the inner wall of the condensation chamber 3 for condensation, thereby effectively reducing the amount of light blocked by the condensation of steam on the top glass. The steam condenses after contacting the inner wall of the lower shell 11. The evaporation principle on the outer shell 6 is the same, and will not be described in detail here.

[0052] Reference Figure 2 , Figure 3 and Figure 4Seawater evaporates and escapes into the condensation space 61 after entering the capillary channel 311 on the outer surface of the lower shell 11, where it is condensed. Fresh water in the condensation chamber 3 drips into the liquid guide groove 411 and collects. Fresh water on the liquid guide part 43 slides into the liquid guide groove 411. Fresh water in the liquid guide groove 411 collects into the liquid collection chamber 5 after passing through the liquid guide hole 44. Fresh water in the condensation space 61 collects into the water collection chamber 73 through the water guide hole 721. Finally, the fresh water in the liquid collection chamber 5 and the water collection chamber 73 can be drawn out through an external water pipe (not shown in the figure).

[0053] Reference Figure 2 and Figure 3 No additional power supply equipment is required. The seawater evaporated can be condensed by sunlight and capillary channel 311. After evaporation, the seawater in the evaporation chamber 21 rises and escapes into the condensation chamber 3. After contacting the inner wall of the shell 1, it cools down and condenses. The condensed fresh water is collected by the collection chamber 5. Therefore, the cost of seawater desalination collection is reduced and the efficiency of seawater desalination collection is improved.

[0054] Reference Figure 2 and Figure 3 The capillary channels 311 on the outer walls of the lower shell 11 and the outer shell 6 can reduce the need for a water pump. By utilizing capillary force, water can be easily drawn to a higher position and water can be continuously transported to maintain the water level in the channel. The four walls can effectively utilize direct sunlight at different angles, so that the water in the channel can be continuously and efficiently cooled, avoiding unstable evaporation of the water in the channel due to different angles of sunlight.

[0055] Reference Figure 2 and Figure 3 Meanwhile, since the capillary channel 311 is located on the outer surface of the lower shell 11 and the outer shell 6, the temperature of the inner surface of the lower shell 11 is lower than that of the inner surface of the upper shell 12. After the seawater evaporates, the steam preferentially chooses the inner wall surface for condensation, thereby effectively reducing the probability that the seawater evaporation chamber cannot work continuously and reliably due to the condensation of steam on the inner top wall of the upper shell 12 blocking sunlight. Therefore, the efficiency of seawater desalination and collection is improved.

[0056] In other embodiments, the seawater evaporation and condensation device may have a multi-layer shell, that is, a shell with capillary channels may be added to the outer periphery of the outer shell 6. The relationship between the multi-layer shells is consistent with the relationship between the lower shell 11 and the outer shell 6 in this embodiment. That is, as long as the temperature of the steam coming out from the outer wall of the inner layer is higher than the temperature of the inner wall of the outer layer, there is a temperature difference between the two, and the structure can be further added to meet the actual needs.

[0057] The working principle of this application embodiment is as follows:

[0058] Some seawater enters the evaporation chamber 21 through the water supply pipe 14, and some seawater enters the condensation space 61 through the water inlet channel 62. The liquid level of the seawater entering the condensation space 61 is lower than the height of the vertical part 712. Sunlight shines through the top of the upper shell 12 and the connecting shell 63 onto the surface of the seawater located in the evaporation chamber 21 and the condensation space 61. The seawater is heated and evaporates. The steam in the evaporation chamber 21 rises and escapes from the evaporation chamber 21 into the condensation chamber 3. Some of the steam condenses after contacting the inner top wall of the upper shell 12 and drips onto the liquid guiding part 43. Some of the steam in the condensation space 61 condenses after contacting the inner top wall of the connecting shell 63 and drips onto the water guiding plate 72. Some of the steam escapes and condenses after contacting the inner wall of the outer shell 6 and collects on the water guiding plate 72.

[0059] Seawater on the outer surface of the lower shell 11 enters the capillary channel 311 and moves from the bottom to the top of the capillary channel 311 under capillary action. When the sun shines on the capillary channel 311, the seawater at the top of the capillary channel 311 evaporates and vaporizes, which lowers the temperature of the inner wall surface. The vapor condenses after contacting the inner wall surface of the lower shell 11. The seawater in the capillary channel 311 on the outer surface of the lower shell 11 evaporates and escapes into the condensation space 61 for condensation. Fresh water in the condensation chamber 3 drips into the liquid guide groove 411 and collects. Fresh water on the liquid guide part 43 slides into the liquid guide groove 411. The fresh water in the liquid guide groove 411 collects in the liquid collection chamber 5 after passing through the liquid guide hole 44. The fresh water in the condensation space 61 collects in the water collection chamber 73 through the water guide hole 721.

[0060] No additional power supply equipment is required. The evaporated seawater can be condensed simply by using sunlight in conjunction with the capillary channel 311. The two layers of capillary channels 311 enable multi-stage recycling of seawater, which reduces the cost of seawater desalination and improves the efficiency of seawater desalination.

[0061] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A seawater evaporation and condensation device, characterized in that: The device includes a shell (1), an evaporator (2) inside the shell (1), an evaporator chamber (21) inside the evaporator (2), a water inlet (22) for seawater to enter at the bottom of the evaporator chamber (21), a condensation chamber (3) between the evaporator (2) and the shell (1), the top of the evaporator chamber (21) and the condensation chamber (3) are connected, a condensation structure (31) is provided at the condensation chamber (3), and a collection device for collecting fresh water is provided inside the shell (1). The condensation structure (31) includes multiple capillary channels arranged vertically on the shell (1), and the multiple capillary channels are arranged sequentially along the circumference of the shell (1); the shell (1) includes a lower shell (11) and an upper shell (12), the capillary channels are located on the outer surface of the lower shell (11), the evaporator (2) is located inside the lower shell (11), and the upper shell (12) is fastened to the top of the lower shell (11) and located above the evaporator (2); The lower shell (11) is surrounded by an outer shell (6), and there is a condensation space (61) between the outer shell (6) and the lower shell (11). The bottom end of the condensation space (61) is provided with a water inlet channel (62) for seawater to enter. The outer surface of the outer shell (6) has a plurality of vertically arranged capillary channels II, which are arranged sequentially along the circumference of the outer shell (6). The top end of the outer shell (6) is connected to the upper shell (12) through a connecting shell (63). The outer shell (6) is provided with a liquid collecting device (7) for collecting fresh water. The collecting component is a liquid collecting plate (4), which is located inside the lower shell (11). The evaporation cylinder (2) is fixed on the liquid collecting plate (4). A liquid collecting cavity (5) is formed between the liquid collecting plate (4) and the lower shell (11). The liquid collecting cavity (5) is located below the evaporation chamber (21) and the condensation chamber (3). The liquid collecting plate (4) is provided with a liquid guiding hole (44), which connects the condensation chamber (3) and the liquid collecting cavity (5).

2. The seawater evaporation and condensation device according to claim 1, characterized in that: Both the upper housing (12) and the connecting housing (63) are made of light-transmitting material.

3. The seawater evaporation and condensation device according to claim 1, characterized in that: The liquid collecting plate (4) includes a liquid collecting part (41), a vertical part (42) and a liquid guiding part (43) integrally formed. The liquid collecting part (41) is fixed on the inner wall of the lower shell (11) and extends horizontally inward. The vertical part (42) is located at the end of the liquid collecting part (41) away from the inner wall of the lower shell (11) and extends upward. A liquid guiding groove (411) is formed between the liquid collecting part (41) and the vertical part (42) and the lower shell (11). The liquid guiding hole (44) is provided on the liquid collecting part (41) and connects the liquid guiding groove (411) and the liquid collecting chamber (5). The liquid guiding part (43) is located at the end of the vertical part (42) away from the liquid collecting part (41). The evaporation cylinder (2) is provided on the liquid guiding part (43).

4. The seawater evaporation and condensation device according to claim 3, characterized in that: The liquid guiding holes (44) are multiple, and the multiple liquid guiding holes (44) are spaced apart on the liquid collecting part (41).

5. A seawater evaporation and condensation device according to claim 1, characterized in that: The liquid collecting component (7) includes a water collecting plate (71) and a water guiding plate (72). The water collecting plate (71) is fixed on the inner wall of the outer shell (6) and extends upward. A water collecting cavity (73) is formed between the water collecting plate (71) and the outer shell (6). The water guiding plate (72) is disposed in the water collecting cavity (73) and extends horizontally. The water guiding plate (72) has a water guiding hole (721) for guiding condensate into the water collecting cavity (73).

6. The seawater evaporation and condensation device according to claim 1, characterized in that: The bottom of the lower shell (11) is provided with a water supply pipe (14), which passes through the liquid collection chamber (5) and the water supply port (22) and is connected to the evaporation chamber (21).

Images