Efficient three-dimensional dynamic waterwheel type solar interface distillation system

Abstract

The invention relates to the technical field of water resource utilization, and discloses an efficient three-dimensional dynamic waterwheel type solar interface distillation system which comprises an evaporation chamber, one side of the evaporation chamber is a light receiving side, the top end of the evaporation chamber is fixedly connected with a condensation wall, the top end of the condensation wall is provided with a circulating condensation device, and the outer wall of the evaporation chamber is fixedly connected with a distilled water collection pool. Distilled water on the condensing wall flows into the distilled water collecting tank; the evaporator is arranged in the evaporation chamber, external raw water is conveyed to the evaporator, water distribution of the evaporator is completed through a capillary material on the evaporator, and sunlight irradiates the evaporator through the light receiving side of the evaporation chamber to carry out photothermal conversion so as to realize evaporation of the raw water; the raw water circulation system is communicated with the evaporation chamber to form raw water circulation, and the evaporator is converted into dynamic rotation from static rotation through impact of raw water conveyed by the raw water circulation system. According to the invention, the solar energy utilization efficiency is obviously improved, the seawater desalination cost is reduced, and the problems of non-ideal evaporation effect and crystallized salt pollution of a two-dimensional static solar energy interface evaporation device are solved.

Description

Technical Field

[0001] The invention relates to the technical field of water resource utilization, in particular to a high-efficiency three-dimensional dynamic water-type solar interface distillation system. Background Art

[0002] Common desalination technologies such as reverse osmosis and multi-stage flash evaporation usually require high construction costs and consume a lot of energy. Using solar-driven distillation technology can significantly reduce the cost of desalination, especially in areas with abundant solar energy resources. However, in traditional solar distillation technology, solar energy is heated through water, which leads to serious heat loss, and the reflection of the water surface and the transmission of the water body will greatly lose the light efficiency.

[0003] In recent years, a new solar interface distillation technology has been proposed, which can significantly improve the evaporation efficiency by concentrating the water to be evaporated and the solar heat on the thin film interface for low heat loss evaporation. However, the existing solar interface distillation systems are all static, and the evaporation efficiency is still limited. At the same time, salt crystals contaminate the interface, affecting the continuous operation of evaporation.

[0004] Therefore, there is an urgent need for an efficient three-dimensional dynamic water-type solar interface distillation system to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a high-efficiency three-dimensional dynamic water-type solar interface distillation system to solve the problems existing in the above-mentioned prior art.

[0006] To achieve the above object, the present invention provides the following scheme: The present invention provides a high-efficiency three-dimensional dynamic water-type solar interface distillation system, comprising: an evaporation chamber, one side of which is a light-receiving side, a condensation wall fixedly connected to the top of the evaporation chamber, a circulating condensation device arranged on the top of the condensation wall, a distilled water collection pool fixedly connected to the outer wall of the evaporation chamber, and the distilled water on the condensation wall flows into the distilled water collection pool;

[0007] An evaporator is arranged in the evaporation chamber, and external raw water is transported to the evaporator and the water distribution of the evaporator is completed through the capillary material on the evaporator, and the sunlight irradiates the evaporator through the light-receiving side of the evaporation chamber to perform photothermal conversion to realize the evaporation of the raw water;

[0008] The raw water circulation system is connected with the evaporation chamber to form a raw water circulation. The raw water impact of the evaporator transported by the raw water circulation system is transformed from static to dynamic rotation.

[0009] According to a high-efficiency three-dimensional dynamic waterwheel type solar interface distillation system provided by the present invention, the evaporator includes a waterwheel base, the waterwheel base is fixedly connected to the bottom end of the evaporation chamber, a waterwheel frame is fixedly connected to the waterwheel base, a plurality of blades are fixedly connected to the waterwheel frame through bearings, and the plurality of blades are circumferentially distributed on the bearings at equal intervals.

[0010] According to a high-efficiency three-dimensional dynamic water-type solar interface distillation system provided by the present invention, the blades are bucket-shaped, and the capillary material is coated on the blades.

[0011] According to the present invention, a high-efficiency three-dimensional dynamic water-type solar interface distillation system is provided, wherein the raw water circulation system includes a raw water transfer tank, the bottom end of the raw water transfer tank is fixedly connected to one end of a water outlet pipe, the other end of the water outlet pipe extends into the evaporation chamber and is located above the blades, the top end of the raw water transfer tank is connected to one end of a circulation pipe, the other end of the circulation pipe is connected to the bottom of the evaporation chamber, and a raw water circulation pump is installed on the circulation pipe.

[0012] According to a high-efficiency three-dimensional dynamic water-type solar interface distillation system provided by the present invention, the circulating condensing device includes a circulating condensing plate, the circulating condensing plate is fixedly connected to the top of the condensing wall, both sides of the top of the circulating condensing plate are connected to the condensing water transfer tank by connecting columns, and a condensing water circulation pump is installed on one of the connecting column pipelines.

[0013] According to a high-efficiency three-dimensional dynamic water-type solar interface distillation system provided by the present invention, a plurality of guide strips are axially provided at the bottom end of the condensation wall.

[0014] According to a high-efficiency three-dimensional dynamic water-type solar interface distillation system provided by the present invention, the condensation wall is arranged obliquely, and the distilled water collection pool is located at the lowest end of the condensation wall.

[0015] According to a high-efficiency three-dimensional dynamic water-type solar interface distillation system provided by the present invention, the distilled water collection pool is an inverted triangle structure, and the bottom end of the distilled water collection pool is connected to a discharge pipe.

[0016] According to the high-efficiency three-dimensional dynamic water-type solar interface distillation system provided by the present invention, a water trap is arranged on the discharge pipe.

[0017] According to a high-efficiency three-dimensional dynamic water-type solar interface distillation system provided by the present invention, the capillary material is one of a semiconductor material, a metal-based plasma material or a carbon-based inorganic material.

[0018] Compared with the prior art, the present invention has the following advantages and technical effects:

[0019] The present invention provides a high-efficiency three-dimensional dynamic water-type solar interface distillation system. The raw water circulation system transports raw water to the evaporator. The raw water impacts the evaporator through gravity, thereby driving the evaporator to change from static to dynamic and continuously rotate. When the evaporator rotates, the flow of surrounding air is accelerated, thereby improving the evaporation efficiency. Under the sunlight, the raw liquid of the evaporator is continuously heated. On the one hand, the liquid water is evaporated into water vapor and rises to the top of the evaporation chamber. Under the cooling of the condensation wall, small distilled water droplets are formed, which flow down along the condensation wall and are finally collected in the distilled water collection pool. On the other hand, during the evaporation of the raw liquid, the evaporator also achieves long-term stable evaporation performance by repeating the self-regenerating cycle of "evaporation-crystallization-dissolution", thereby overcoming the problem of slow diffusion of water vapor due to accumulation in traditional solar evaporators. The present application utilizes green solar energy as energy, drives the evaporator to operate by hydraulic power to make the surrounding air flow, expands the saturated vapor pressure difference of the evaporation interface, and thus accelerates evaporation. The evaporation chamber is a closed space, which reduces the dissipation of water vapor and can efficiently complete the seawater distillation and desalination water production process. The raw water circulation water supply method is adopted. The salt precipitated on the surface of the evaporator will gradually dissolve with the circulation of the raw water, which overcomes the problem that the crystal scaling of the traditional solar interface evaporator blocks the light-absorbing surface area and reduces the heat absorption efficiency, resulting in a gradual decrease in the water evaporation rate. Through the circulating condensation device, the water vapor generated by evaporation is effectively liquefied and collected in time, thereby reducing the vapor pressure in the evaporator, significantly accelerating the evaporation process, and overcoming the problem of slow diffusion and evaporation inhibition caused by water vapor accumulation in the traditional solar evaporator. With small water volume and high heat absorption efficiency as the basic principle of rapid evaporation, the evaporation efficiency is achieved 10 times that of the traditional solar distillation. At the same time, the device adopts a three-dimensional dynamic design, which increases its evaporation efficiency to three times that of the two-dimensional static evaporator. It has important application value in the field of seawater desalination and water production technology, significantly improves the efficiency of solar energy utilization, and reduces the cost of seawater desalination. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the distilled water collection pool of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the evaporator of the present invention;

[0024] Figure 4 This is a schematic diagram of the blade structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the condensation wall structure of the present invention;

[0026] Among them, 1. Evaporation chamber; 2. Distilled water collection tank; 3. Condensation wall; 4. Circulating condensation plate; 5. Raw water circulation system; 51. Raw water transfer tank; 52. Water outlet pipe; 53. Circulation pipe; 54. Raw water circulation pump; 6. Evaporator; 61. Waterwheel frame; 62. Waterwheel base; 63. Bearing; 64. Blade; 7. Connecting column; 8. Condensate transfer tank; 9. Condensate circulation pump; 10. Guide strip; 11. Discharge pipe; 12. Trap. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Reference Figure 1-Figure 5 The present invention provides a high-efficiency three-dimensional dynamic water-type solar interface distillation system, comprising:

[0030] The evaporation chamber 1 has one side as the light receiving side, a condensation wall 3 is fixedly connected to the top of the evaporation chamber 1, a circulating condensation device is arranged on the top of the condensation wall 3, a distilled water collection pool 2 is fixedly connected to the outer wall of the evaporation chamber 1, and the distilled water on the condensation wall 3 flows into the distilled water collection pool 2;

[0031] The evaporator 6 is arranged in the evaporation chamber 1. The external raw water is transported to the evaporator 6 and the water distribution of the evaporator is completed through the capillary material on the evaporator 6. The sunlight irradiates the evaporator 6 through the light-receiving side of the evaporation chamber 1 to perform light-heat conversion to realize the evaporation of the raw water;

[0032] The raw water circulation system 5 is connected to the evaporation chamber 1 to form a raw water circulation. The raw water impact of the evaporator 6 delivered by the raw water circulation system 5 is transformed from static to dynamic rotation.

[0033] In one embodiment of the present invention, the raw water circulation system 5 transports raw water to the evaporator 6. The raw water impacts the evaporator 6 through gravity, thereby driving the evaporator 6 to change from static to dynamic and continuously rotate. When the evaporator 6 rotates, the flow of surrounding air is accelerated, thereby improving the evaporation efficiency. Under the sunlight, the raw liquid in the evaporator 6 is continuously heated. On the one hand, the liquid water is evaporated into water vapor and rises to the top of the evaporation chamber 1. Under the cooling of the condensation wall 3, small distilled water droplets are formed, which flow down along the condensation wall and are finally collected in the distilled water collection pool 2. On the other hand, during the evaporation of the raw liquid, the evaporator 6 also achieves long-term stable evaporation performance by repeating the self-regenerating cycle of "evaporation-crystallization-dissolution", overcoming the problem of slow diffusion of water vapor due to accumulation in traditional solar evaporators.

[0034] Specifically, the whole distillation device uses solar energy as energy, and drives the evaporator 6 to operate by hydraulic power, which can efficiently complete the seawater distillation and desalination water production process. The device has important application value in the field of seawater desalination and water production technology, significantly improves the efficiency of solar energy utilization, and reduces the cost of seawater desalination. The water that fails to evaporate in time and falls from the evaporator 6 also absorbs a certain amount of energy, and its internal energy increases. This part of water can be circulated back to the waterwheel for evaporation many times through the raw water circulation system, thereby improving the utilization rate of energy.

[0035] Specifically, the light-receiving side of the evaporation chamber 1 is preferably a quartz plate, which is made of almost pure SiO2. 2 The content reaches 99.99%, which has the effect of better light transmittance, not filtering out the ultraviolet light band, and improving evaporation efficiency.

[0036] Specifically, the raw water circulation system 5 can provide initial gravitational potential energy by replenishing water to the high-level water tank through a water pump, or can provide initial gravitational potential energy by replenishing water to the high-level water tank through natural energy such as seawater tides.

[0037] As an optional embodiment, the evaporator 6 includes a waterwheel base 62, which is fixedly connected to the bottom end of the evaporation chamber 1, and a waterwheel frame 61 is fixedly connected to the waterwheel base 62. A plurality of blades 64 are fixedly connected to the waterwheel frame 61 through bearings 63, and the plurality of blades 64 are circumferentially evenly distributed on the bearings 63.

[0038] In one embodiment of the present invention, when raw water is delivered to the blades 64, the overall rotation of the evaporator 6 is driven by hydraulic power without the need for external energy supply. Specifically, under sunlight, the raw liquid on the blades 64 is continuously heated. On the one hand, liquid water is evaporated into water vapor and rises to the top of the evaporation chamber 1. Under the cooling of the condensation wall 3, small distilled water droplets are formed, which flow down along the condensation wall and are finally collected in the distilled water collection pool 2. On the other hand, during the evaporation of the raw liquid, the blades 64 also repeat the self-regenerating cycle of "evaporation-crystallization-dissolution" to achieve long-term stable evaporation performance, thereby overcoming the problem of slow diffusion of water vapor due to accumulation in traditional solar evaporators.

[0039] As an optional implementation, the blade 64 is bucket-shaped, and the blade 64 is coated with a capillary material.

[0040] In one embodiment of the present invention, the bucket-shaped structure can effectively receive the water flow and convert its impact force into the rotational kinetic energy of the waterwheel, thereby ensuring its stable rotation. By providing capillary materials, the heat absorption efficiency is improved to achieve rapid evaporation.

[0041] As an optional embodiment, the raw water circulation system 5 includes a raw water transfer tank 51, the bottom end of which is fixedly connected to one end of a water outlet pipe 52, the other end of the water outlet pipe 52 extends into the evaporation chamber 1 and is located above the blades 64, the top of the raw water transfer tank 51 is connected to one end of a circulation pipe 53, the other end of the circulation pipe 53 is connected to the bottom of the evaporation chamber 1, and a raw water circulation pump 54 is installed on the circulation pipe 53.

[0042] In one embodiment of the present invention, a raw water circulation pump 54 is provided to realize the circulation of raw water. The raw water falls under the action of gravity and forms a columnar water flow through the water outlet pipe 52. The water flow impacts the blades 64, driving the evaporator 6 to rotate continuously, thereby further accelerating the flow of air around the evaporator 6 and improving the evaporation efficiency. The water outlet pipe 52 can also adjust the water outlet flow rate, thereby adjusting the rotation speed of the water-type evaporator 6. The generated water vapor contacts the condensation wall 3 through diffusion, and is liquefied to form distilled water due to condensation. The distilled water slides down the condensation wall 3 and finally enters the distilled water collection pool 2. The raw water that fails to evaporate in time falls to the bottom of the evaporation chamber 1 and the evaporation process is repeated through the raw water circulation pump 54.

[0043] As an optional embodiment, the circulating condensing device includes a circulating condensing plate 4, which is fixedly connected to the top of the condensing wall 3. Both sides of the top of the circulating condensing plate 4 are connected to the condensing water transfer tank 8 by connecting columns 7, and a condensing water circulation pump 9 is installed on one of the connecting columns 7 pipelines.

[0044] In one embodiment of the present invention, the condensation wall 3 maintains a low temperature through the circulating condensation plate 4, and the condensation wall 3 is closely attached to the circulating condensation plate 4. The upper and lower ends of the circulating condensation plate 4 are respectively provided with connecting columns 7, which are connected to the condensation water circulation pump 9 and the condensation water transfer tank 8 through water pipes to form a closed loop of continuous circulation, thereby continuously creating a low temperature environment.

[0045] Specifically, the circulating condensation plate 4 is made of a high reflectivity film material or is covered with a white coating, thereby effectively suppressing the temperature rise of the circulating cooling water due to light, and avoiding a decrease in condensation efficiency due to temperature rise.

[0046] As an optional implementation, a plurality of guide strips 10 are axially provided at the bottom end of the condensation wall 3 .

[0047] In one embodiment of the present invention, the guide bar 10 is used to direct the condensed distilled water into streams along the guide bar 10 and into the distilled water collection tank 2 .

[0048] As an optional implementation, the condensation wall 3 is arranged at an angle, and the distilled water collection pool 2 is located at the lowest end of the condensation wall 3 .

[0049] In one embodiment of the present invention, the condensation wall 3 is tilted to ensure that the condensed water flows stably into the distilled water collection tank 2 .

[0050] As an optional implementation, the distilled water collecting pool 2 is an inverted triangle structure, and the bottom end of the distilled water collecting pool 2 is connected to a discharge pipe 11 .

[0051] In one embodiment of the present invention, the distilled water collection pool 2 is an inverted triangle structure, so that the distilled water is collected at the bottom of the pool and discharged through the discharge pipe 11.

[0052] As an optional implementation, a water trap 12 is provided on the discharge pipe 11 .

[0053] In one embodiment of the present invention, a water trap 12 is provided to ensure the stability of the system and prevent the backflow of distilled water or gas escape during the discharge process.

[0054] As an optional implementation, the capillary material is a semiconductor material, a metal-based plasma material or a carbon-based inorganic material.

[0055] In one embodiment of the present invention, the light-receiving surface of the blade 64 is coated with a capillary material, which achieves rapid evaporation through a small amount of water and high heat absorption efficiency, and the evaporation efficiency is ten times that of traditional solar distillation technology.

[0056] In one embodiment of the present invention, the raw liquid to be evaporated is introduced into a space isolated from the raw liquid for local solar heating, so that light and heat are efficiently concentrated and the evaporation efficiency is greatly improved. The evaporation chamber 1 is a closed space. After absorbing the heat energy of sunlight, the temperature rises quickly and is not easy to lose. It is equipped with a condensation wall 3. The condensation wall 3 has a temperature significantly lower than that of the evaporation chamber 1 through the action of the circulating condensation plate 4, which has a condensing effect on water vapor. The water vapor heated by sunlight is condensed in time, thereby reducing the saturation of water vapor in the evaporation salting-out chamber. Although the space is relatively sealed, it does not affect the transformation process of water from liquid to gas.

[0057] In one embodiment of the present invention, when the system is running at night, it can still achieve an evaporation efficiency comparable to that of a conventional static evaporator during the day, and can remove the salt crystals accumulated during the day at night, thereby realizing the day and night alternating operation of the process and self-cleaning of salt fouling. In addition to its application in solar desalination, the developed dynamic evaporator also has great potential in water vapor production and industrial salt recovery.

[0058] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0059] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An efficient three-dimensional dynamic water-type solar interface distillation system, characterized in that: include: An evaporation chamber (1) has one side as a light receiving side, a condensation wall (3) is fixedly connected to the top of the evaporation chamber (1), a circulating condensation device is arranged on the top of the condensation wall (3), a distilled water collection pool (2) is fixedly connected to the outer wall of the evaporation chamber (1), and the distilled water on the condensation wall (3) flows into the distilled water collection pool (2); An evaporator (6) is arranged in the evaporation chamber (1), and external raw water is transported to the evaporator (6) and the water distribution of the evaporator is completed through the capillary material on the evaporator (6), and sunlight irradiates the evaporator (6) through the light-receiving side of the evaporation chamber (1) to perform photothermal conversion to realize evaporation of the raw water; The raw water circulation system (5) is connected to the evaporation chamber (1) to form a raw water circulation, and the raw water impact of the evaporator (6) transported by the raw water circulation system (5) is transformed from static to dynamic rotation.

2. According to claim 1, a high-efficiency three-dimensional dynamic water-type solar interface distillation system is characterized by: The evaporator (6) comprises a waterwheel base (62), the waterwheel base (62) being fixedly connected to the bottom end of the evaporation chamber (1), a waterwheel frame (61) being fixedly connected to the waterwheel base (62), a plurality of blades (64) being fixedly connected to the waterwheel frame (61) via a bearing (63), and the plurality of blades (64) being distributed on the bearing (63) at equal intervals in the circumferential direction.

3. The high-efficiency three-dimensional dynamic water-type solar interface distillation system according to claim 2 is characterized by: The blade (64) is bucket-shaped, and the capillary material is coated on the blade (64).

4. The high-efficiency three-dimensional dynamic water-type solar interface distillation system according to claim 2 is characterized by: The raw water circulation system (5) comprises a raw water transfer tank (51), one end of a water outlet pipe (52) is fixedly connected to the bottom of the raw water transfer tank (51), the other end of the water outlet pipe (52) extends into the evaporation chamber (1) and is located above the blade (64), the top of the raw water transfer tank (51) is connected to one end of a circulation pipe (53), the other end of the circulation pipe (53) is connected to the bottom of the evaporation chamber (1), and a raw water circulation pump (54) is installed on the circulation pipe (53).

5. The high-efficiency three-dimensional dynamic water-type solar interface distillation system according to claim 1 is characterized by: The circulating condensing device comprises a circulating condensing plate (4), wherein the circulating condensing plate (4) is fixedly connected to the top of the condensing wall (3), and both sides of the top of the circulating condensing plate (4) are connected to connecting columns (7) connected to the condensed water transfer tank (8), and a condensed water circulating pump (9) is installed on one of the connecting columns (7) pipelines.

6. The high-efficiency three-dimensional dynamic water-type solar interface distillation system according to claim 1 is characterized by: A plurality of guide strips (10) are axially provided at the bottom end of the condensation wall (3).

7. The high-efficiency three-dimensional dynamic water-type solar interface distillation system according to claim 1 is characterized by: The condensation wall (3) is arranged at an angle, and the distilled water collection pool (2) is located at the lowest end of the condensation wall (3).

8. The high-efficiency three-dimensional dynamic water-type solar interface distillation system according to claim 7 is characterized by: The distilled water collection pool (2) is an inverted triangle structure, and the bottom end of the distilled water collection pool (2) is connected to a discharge pipe (11).

9. The high-efficiency three-dimensional dynamic water-type solar interface distillation system according to claim 8, characterized in that: The discharge pipe (11) is provided with a water trap (12).

10. The high-efficiency three-dimensional dynamic water-type solar interface distillation system according to claim 3 is characterized by: The capillary material is one of a semiconductor material, a metal-based plasma material or a carbon-based inorganic material.

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