Environment-friendly multi-effect evaporator for seawater desalination

Abstract

The invention relates to the technical field of seawater desalination, in particular to an environment-friendly multi-effect evaporator for seawater desalination, which comprises a power storage station, a base and an evaporator, the evaporator is of a conical structure with the inner diameter gradually reduced from top to bottom, and the top of the evaporator is connected with an upper cover through a rotating assembly; the top of the upper cover is fixedly connected with a first water pipe in a penetrating mode, the end, away from the upper cover, of the first water pipe penetrates through the bottom of the evaporator from the outside of the evaporator, an auger mechanism is arranged in the evaporator, the upper end of the auger mechanism is provided with a discharging end, and the lower end of the auger mechanism is fixedly connected with a scraper. Salt scales are thrown to the auger mechanism through high-speed rotating seawater, the auger mechanism continuously rotates to convey and discharge the salt scales upwards, smoothness of the inner space of the evaporator is ensured, normal seawater evaporation is maintained, the auger mechanism drives the scraper to remove the salt scales on the inner wall of the evaporator, obstruction of the salt scales to the heat transfer process is reduced, and the heat transfer efficiency is improved. Therefore, the seawater can fully absorb heat energy, and the seawater desalination effect is obviously improved.

Description

Technical Field

[0001] The present invention relates to the technical field of seawater desalination, and particularly to an environment-friendly multi-effect evaporator for seawater desalination. Background Art

[0002] Seawater desalination can convert abundant seawater into utilizable fresh water, providing a stable water source supply for water-scarce areas and alleviating the water resource tension. An evaporator is a highly efficient technical device for seawater desalination driven by thermal energy. Through the processes of evaporation and condensation, the salts and impurities in seawater are separated to produce high-purity fresh water to meet the needs of domestic drinking, agricultural irrigation or industrial production.

[0003] Currently, in the process of seawater desalination in the prior art, there is a situation where scale continuously accumulates inside the evaporator, which not only blocks the internal space but also interferes with the continuity and stability of seawater evaporation, resulting in a significant decline in evaporation efficiency. At the same time, it is difficult to effectively remove the scale adhering to the inner wall of the evaporator, especially the stubborn scale deposited at the bottom of the inner wall. These deposits will form a heat-insulating layer, seriously hindering the heat transfer process, making the seawater unable to fully absorb thermal energy, and ultimately affecting the output and quality of the desalinated water. In addition, to solve the scale problem, it is often necessary to frequently stop the machine for mechanical cleaning or rely on chemical scale inhibitors, which not only increases the equipment maintenance cost but also affects the continuous operation efficiency of the system. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem of poor seawater desalination effect caused by scale accumulation on the inner wall of the evaporator in the prior art, and to propose an environment-friendly multi-effect evaporator for seawater desalination.

[0005] To achieve the above purpose, the present invention adopts the following technical scheme: An environment-friendly multi-effect evaporator for seawater desalination, including a power storage station, a base and an evaporator. A collector is fixedly installed on the top of the base. The evaporator is a conical structure with an inner diameter gradually decreasing from top to bottom. The top of the evaporator is connected to an upper cover through a rotating assembly. A condensation assembly is arranged on the top of the upper cover. A water pipe 1 penetrates and is fixedly connected to the top of the upper cover. One end of the water pipe 1 far from the upper cover penetrates the bottom of the evaporator from the outside, and both ends of the water pipe 1 are communicated with the inside of the evaporator. A water injection assembly is fixedly communicated with the top of the upper cover. A screw conveyor mechanism is arranged inside the evaporator. The upper end of the screw conveyor mechanism is provided with a discharge end, and the lower end is fixedly connected to a scraper.

[0006] Preferably, an aggregate box is fixedly installed at the center of the base. The evaporator is fixedly installed at the center of the aggregate box. The evaporator is made of stainless steel material, and its inner wall is provided with a graphene coating.

[0007] Preferably, the rotating assembly includes an upper support rotatably connected to the bottom of the upper cover. A second bearing is fixedly installed on the outer wall of the evaporator. The second bearing is fixedly connected to the upper support through a second connecting rod. A discharge port is provided between the upper support and the second bearing. The discharge end corresponds to the position of the discharge port and is located directly above the aggregate box.

[0008] Preferably, a lower support is rotatably connected to the bottom of the inner wall of the evaporator through a first bearing. The lower support is fixedly connected to the upper support through a plurality of radially distributed first connecting rods. A blade is fixedly connected to one side of each first connecting rod close to the axis of the evaporator. The auger mechanism is disposed around the plurality of first connecting rods and is fixedly connected to the first connecting rods.

[0009] Preferably, the water injection assembly includes a water pump fixedly installed at the bottom of the base. The water pump is fixedly connected to a second water pipe and a third water pipe. The side wall of the second water pipe is fixedly connected to a water inlet pipe through a first three-way valve. The ends of the second water pipe and the third water pipe away from the water pump both penetrate the upper cover. The second water pipe is fixedly connected to the side wall of the first water pipe through a second three-way valve. The third water pipe communicates with the inside of the evaporator.

[0010] Preferably, a hydraulic generator is fixedly installed at the end of the first water pipe.

[0011] Preferably, a capacitance level gauge is fixedly installed on the inner wall of the evaporator.

[0012] Preferably, the condensation assembly includes a gas collection chamber provided at the center of the top of the upper cover. The gas collection chamber communicates with the inside of the evaporator. A refrigeration sheet is fixedly installed on the inner wall of the gas collection chamber. A water collection chamber is fixedly installed on the top of the upper cover. The refrigeration sheet penetrates into the water collection chamber, and the end of the refrigeration sheet close to the water collection chamber is inclined downward. The water collection chamber is fixedly connected to a water outlet pipe.

[0013] Preferably, an arc-shaped guide rail is fixedly installed on the top of the base. The arc-shaped guide rail is located outside the evaporator. The arc-shaped guide rail is slidably connected to a frame. The side wall of the frame is fixedly connected to the heat collector through an adjusting frame.

[0014] Preferably, a plurality of photovoltaic panels are uniformly and fixedly installed on the top of the frame. A photosensitive sensor is fixedly installed on the top of the heat collector.

[0015] Compared with the existing technology, the advantages of the present invention are as follows:

[0016] 1. In the process of seawater evaporation, the present invention utilizes high-speed rotating seawater to throw salt scale toward the auger mechanism. The auger mechanism continuously rotates and advances, and can continuously transport the salt scale upward and discharge it from the evaporator, effectively avoiding the accumulation of salt scale in the evaporator, ensuring the smooth flow of the internal space of the evaporator, maintaining the normal evaporation of seawater, and ensuring the evaporation efficiency. The auger mechanism can scrape off the salt scale on the inner wall of the evaporator during the rotation process, and the scraper at the lower end thereof can also specifically scrape off the salt scale deposited on the bottom of the inner wall of the evaporator, ensuring the cleanliness of the inner wall and bottom of the evaporator, reducing the hindrance of the salt scale to the heat transfer process, and allowing the seawater to absorb heat energy more fully, thereby improving the quality and output of seawater desalination.

[0017] 2. In the present invention, the water pipe 1 realizes the extraction of seawater from the bottom of the evaporator and the reinjection of seawater from the top through the siphon effect, without the need for additional power consumption, thereby realizing the continuous circulation of seawater and reducing energy consumption. The circulating convection makes the seawater heated more evenly, accelerates the evaporation rate, and effectively improves the efficiency of seawater desalination. At the same time, it helps to prevent local overheating of seawater, avoids the premature precipitation and deposition of salt substances at the bottom of the evaporator due to local high temperature, and reduces the formation of salt scale. In addition, the conical evaporator is designed in coordination with the high-speed circulating water flow to promote the formation of a unidirectional vortex in the seawater. The vortex helps to enhance the mixing effect of the seawater, makes the seawater more evenly distributed in the evaporator, and increases the contact area between the seawater and the internal components of the evaporator, thereby improving the heat exchange efficiency in the seawater desalination process.

[0018] 3. The present invention realizes real-time tracking of the sun's position by the collector by setting up devices such as photosensitive sensors, adjustment racks and racks, which can maximize the concentration and reflection of sunlight to the evaporator for heating, thereby improving the utilization efficiency of solar energy, ensuring that the evaporator can obtain a stable heat supply, and thus increasing the evaporation rate of seawater. In addition, the conical upper cover design is conducive to guiding water vapor to converge to the gas collecting chamber, reducing the retention and reflux of water vapor in the evaporator, further improving the water vapor collection efficiency, and ensuring the output of desalinated water.

[0019] 4. The present invention utilizes high-speed rotating seawater to impact blades to drive the auger mechanism to rotate, converting the kinetic energy of seawater into power for the rotation of the auger mechanism, reducing the use of additional power devices, avoiding the energy consumed by equipping the auger mechanism with a separate power source, and reducing the energy consumption of the equipment. In addition, the auger mechanism is fixedly connected to a radially distributed connecting rod, so that the auger mechanism has a higher structural strength, can effectively resist the centrifugal force generated during high-speed rotation, and the external force caused by the impact of seawater and salt scale, prevent the auger mechanism from deformation, and ensure the stability of the equipment during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of an environmentally friendly multi-effect evaporator for seawater desalination proposed by the present invention;

[0021] Figure 2 For Figure 1 Schematic enlarged view of the structure of X in

[0022] Figure 3 Axonometric view from below of a multi-effect evaporator for environmentally friendly seawater desalination proposed by the present invention;

[0023] Figure 4 Half-section axonometric view of a multi-effect evaporator for environmentally friendly seawater desalination proposed by the present invention;

[0024] Figure 5 For Figure 4 Schematic enlarged view of the structure of Y in

[0025] Figure 6 For Figure 4 Schematic enlarged view of the structure of Z in

[0026] Figure 7 Partial-section axonometric view of a multi-effect evaporator for environmentally friendly seawater desalination proposed by the present invention;

[0027] Figure 8 For Figure 7 Schematic enlarged view of the structure of N in

[0028] Figure 9 Schematic diagram of the base and aggregate box structure of a multi-effect evaporator for environmentally friendly seawater desalination proposed by the present invention;

[0029] Figure 10 For Figure 9 Schematic enlarged view of the structure of M in

[0030] In the figure: 1 power storage station, 2 collector, 3 base, 4 evaporator 4, 5 aggregate box, 6 water pump, 21 adjustment frame, 22 frame, 23 photovoltaic panel, 24 photosensitive sensor, 31 arc-shaped guide rail, 41 water inlet pipe, 42 water outlet pipe, 43 water pipe 1, 44 water pipe 2, 45 water pipe 3, 46 three-way valve 1, 47 capacitance liquid level gauge, 48 auger mechanism, 49 bearing 1, 410 lower support, 411 connecting rod 1, 412 blade, 413 three-way valve 2, 414 hydraulic generator, 415 upper cover, 416 air collection chamber, 417 refrigeration sheet, 418 water collection chamber, 419 scraper, 420 discharge end, 421 bearing 2, 422 upper support, 423 connecting rod 2. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0032] Refer to Figures 1 to 10, An environment-friendly multi-effect evaporator for seawater desalination, including a power storage station 1 and a base 3. A collection box 5 is fixedly installed at the center of the base 3, and an evaporator 4 is fixedly installed at the center of the collection box 5. The evaporator 4 and its connecting pipelines are all made of stainless steel material, and a graphene coating is provided on the surface. On the one hand, it reduces the adhesion of salt scale, lowers the maintenance cost and difficulty. On the other hand, it improves the photothermal transfer efficiency, reduces the energy loss during the transfer process, and enhances the energy utilization efficiency. The evaporator 4 is a conical structure with a gradually decreasing inner diameter from top to bottom. A top cover 415 is provided at the top of the evaporator 4, and a water pipe 43 is fixedly connected through the top of the top cover 415. One end of the water pipe 43 away from the top cover 415 penetrates through the bottom of the evaporator 4 from the outside. Both ends of the water pipe 43 are communicated with the inside of the evaporator 4. A water pump 6 is fixedly installed at the bottom of the base 3. The water pump 6 is fixedly communicated with a water pipe 44 and a water pipe 45. The side wall of the water pipe 44 is fixedly connected with a water inlet pipe 41 through a three-way valve 46. One ends of the water pipe 44 and the water pipe 45 away from the water pump 6 both penetrate through the top cover 415, and the water pipe 44 is fixedly connected with the side wall of the water pipe 43 through a three-way valve 413. The water pipe 45 is communicated with the inside of the evaporator 4. When injecting seawater into the evaporator 4, the connection between the water inlet pipe 41 and the lower half of the water pipe 44 is controlled through the three-way valve 46. Under the power supply of the power storage station 1, the water pump 6 injects seawater into the evaporator 4 through the water pipe 45. A capacitance level gauge 47 is fixedly installed on the inner wall of the evaporator 4. When the capacitance level gauge 47 detects that the water level reaches the set value and remains stable, the three-way valve 413 connects the water pipe 43 and the water pipe 44, and at the same time closes the water outlet end of the water pipe 43. The three-way valve 46 cuts off the connection between the water inlet pipe 41 and the water pipe 44. Under the action of the water pump 6, the water pipe 43 pumps out the seawater at the bottom of the evaporator 4, and injects it back into the top through the water pipe 44 and the water pipe 45, forming a closed cycle. After a period of time, the water pump 6 stops working, and at the same time, through valve switching, both the water pipe 44 and the water pipe 45 stop working. The water pipe 43 continuously pumps out the seawater at the bottom of the evaporator 4 and injects it back into the top under the siphon effect, without additional power consumption, realizing the continuous circulation of seawater, reducing the energy consumption. A hydraulic generator 414 is fixedly installed at the end of the water pipe 43, and the hydraulic generator 414 is located below the three-way valve 413. The continuously flowing water drives the hydraulic generator 414 to generate electricity, and the electric energy is stored in the power storage station 1, converting the kinetic energy during the seawater circulation process into electric energy, realizing the recycling of energy, improving the energy utilization efficiency of the entire system, reducing the dependence on external power sources, and conforming to the environmental protection concept. The electric energy stored in the power storage station 1 can be used for the operation of equipment such as the water pump 6, enabling the evaporator 4 to achieve a certain degree of energy self-sufficiency to a certain extent, reducing the operating cost. The conical structure of the evaporator 4 combined with the high-speed circulating water flow can promote the formation of a one-way vortex in the seawater. This vortex helps to enhance the mixing effect of the seawater, making the seawater more evenly distributed inside the evaporator 4, and increasing the contact area between the seawater and each component inside the evaporator 4.Thereby improving the heat exchange efficiency in the desalination process, under the action of the vortex, some impurities in the seawater will move outward due to the centrifugal force, and will be easier to be separated in the subsequent treatment, reducing the damage to the internal structure of the evaporator 4 and extending the service life of the evaporator 4.

[0033] The top of the upper cover 415 is provided with an air collecting chamber 416, which is located at the center of the upper cover 415. The air collecting chamber 416 is connected to the inside of the evaporator 4. A cooling fin 417 is fixedly installed on the inner wall of the air collecting chamber 416. A water collecting chamber 418 is fixedly installed on the top of the upper cover 415. The cooling fin 417 extends through the water collecting chamber 418. One end of the cooling fin 417 close to the water collecting chamber 418 is tilted downward. The water collecting chamber 418 is fixedly connected with a water outlet pipe 42. The top of the base 3 is fixedly installed with an arc guide rail 31, which is located at the periphery of the evaporator 4. The arc guide rail 31 is slidably connected to the frame 22, and the side wall of the frame 22 is fixedly connected to the collector 2 through the adjustment frame 21. A plurality of photovoltaic panels 23 are evenly fixedly installed on the top of the frame 22. The photovoltaic panels 23 can convert solar energy into electrical energy and store it in the storage station 1. A photosensitive sensor 24 is fixedly installed on the top of the collector 2. The photosensitive sensor 24 monitors the position of the sun in real time and feeds back a signal. The adjustment frame 21 drives the collector 2 to pitch and rotate to achieve angle adjustment. At the same time, the frame 22 is controlled to drive the collector 2 to move along the arc guide rail 31 to maximize the concentration and reflection of sunlight to the evaporator 4 for heating. This automatic tracking sun design improves the utilization efficiency of solar energy, enhances the adaptability to different time periods and weather conditions, ensures that the evaporator 4 can obtain a stable heat supply, and increases the evaporation rate of seawater. The seawater in the evaporator 4 is continuously stirred and evaporated quickly under the action of circulating convection. On the one hand, the circulating convection makes the seawater heated more evenly, accelerates the evaporation rate, and improves the efficiency of seawater desalination; on the other hand, the stirring effect helps to prevent local overheating of seawater and reduce the precipitation of salt scale at the bottom of the evaporator 4. The water vapor generated rises and enters the air collecting chamber 416 through the upper cover 415. Under the power supply of the power station 1, the temperature of the lower surface of the refrigeration plate 417 is maintained at about 5°C. When the water vapor contacts the low-temperature surface of the refrigeration plate 417, it condenses into droplets and slides along the inclined surface to the water collecting chamber 418. The upper cover 415 has a conical structure, and its inner diameter gradually decreases from top to bottom, which is conducive to guiding the water vapor to flow upward and concentrate into the air collecting chamber 416, reducing the retention and reflux of water vapor in the evaporator 4, and improving the collection efficiency of water vapor.

[0034] A lower support 422 is rotatably connected to the bottom of the upper cover 415. A second bearing 421 is fixedly installed on the outer wall of the evaporator 4. The second bearing 421 is fixedly connected to the lower support 422 through a second connecting rod 423. The lower support 422 can perform circular motion around the axis of the evaporator 4 under the support of the second bearing 421. The bottom of the inner wall of the evaporator 4 is rotatably connected to an upper support 410 through a first bearing 49. The upper support 410 is fixedly connected to the lower support 422 through a plurality of radially distributed first connecting rods 411. One side of each first connecting rod 411 close to the axis of the evaporator 4 is fixedly connected to a blade 412. A screw conveyor mechanism 48 is arranged in the evaporator 4. The screw conveyor mechanism 48 is located outside the plurality of first connecting rods 411 and is fixedly connected to the first connecting rods 411, so that the screw conveyor mechanism 48 has high structural strength and can effectively prevent deformation when rotating at high speed and bearing the impact of seawater and salt scale, ensuring the stable operation of the equipment. The kinetic energy of the seawater is used to drive the screw conveyor mechanism 48 to rotate by impacting the blade 412 with the high-speed swirling seawater, converting the kinetic energy of the seawater into the power for the rotation of the screw conveyor mechanism 48, reducing the use of additional power devices, lowering the energy consumption, meeting the requirements of an environment-friendly equipment, improving the energy utilization efficiency. The lower end of the screw conveyor mechanism 48 is fixedly connected to a scraper 419, and the upper end is provided with a discharge end 420. A discharge port is formed between the upper support 422 and the second bearing 421. The discharge end 420 corresponds to the position of the discharge port and is located directly above the aggregate box 5. During the evaporation process of seawater, salts are continuously precipitated to form salt scale. The high-speed swirling seawater throws the salt scale towards the screw conveyor mechanism 48. The screw conveyor mechanism 48 conveys the salt scale upwards to the discharge end 420 through rotation and discharges it into the aggregate box 5 through the discharge end 420, avoiding the accumulation of salt scale in the evaporator 4 and affecting the evaporation efficiency. The screw conveyor mechanism 48 can scrape the salt scale on the inner wall of the evaporator 4 during rotation. The scraper 419 can scrape the salt scale deposited on the bottom of the inner wall of the evaporator 4, ensuring the cleanliness of the inner wall and the bottom of the evaporator 4, reducing the obstruction of the salt scale to the heat transfer process, enabling the seawater to evaporate more fully, thereby improving the quality and output of seawater desalination, ensuring the stable operation of the seawater desalination system, and at the same time reducing the corrosion and wear of the salt scale on the evaporator 4 and prolonging the service life of the equipment.

[0035] When the present invention is in use, the three-way valve I 46 and the three-way valve II 413 switch the water circuit to connect the water inlet pipe 41 with the lower half of the water pipe II 44. Under the power supply of the power storage station 1, the water pump 6 conveys seawater into the water pipe III 45 through the water inlet pipe 41 and finally flows into the evaporator 4. When the water level reaches the set level of the capacitance liquid level gauge 47 for a certain period of time, the three-way valve I 46 and the three-way valve II 413 switch the water circuit to connect the water pipe I 43 with the water pipe II 44. The water pump 6 pumps out the seawater at the bottom of the evaporator 4 through the water pipe I 43 and then sends it into the evaporator 4 through the water pipe III 45. After a certain period of time, the water pump 6 stops working. The three-way valve I 46 and the three-way valve II 413 switch the water circuit simultaneously to disconnect the connection between the water pipe I 43 and the water pipe II 44. Due to the siphon effect, the seawater at the bottom of the evaporator 4 is continuously pumped away by the water pipe I 43 and then injected from its top. The hydraulic generator 414 continuously generates electricity under the action of continuous water flow, and the electric energy is stored in the power storage station 1. The seawater in the evaporator 4 continuously circulates and generates a vortex in the conical evaporator 4, causing the seawater in the evaporator 4 to rotate at a high speed in one direction.

[0036] The collector 2 can move along the arc-shaped guide rail 31. The photosensitive sensor 24 identifies the position of the sun and feeds back a signal. According to the sun position signal, the position of the collector 2 is adjusted, and the pitch angle of the collector 2 is adjusted through the adjusting frame 21 to ensure that the sunlight is concentrated and reflected onto the evaporator 4 to the greatest extent for heating. The seawater in the evaporator 4 quickly evaporates under the action of circulating convection and stirring. The evaporated water vapor floats up and enters the gas collecting chamber 416 along the upper cover 415. The refrigeration sheet 417 works under the power supply of the power storage station 1, and the temperature of its lower surface is about 5°C. When the water vapor contacts the lower surface of the refrigeration sheet 417, it quickly liquefies and condenses into droplets and adheres to the lower surface of the refrigeration sheet 417. The inclined refrigeration sheet 417 causes the droplets to continuously slide into the water collecting chamber 418 and finally be discharged to the subsequent collection and treatment section through the water outlet pipe 42.

[0037] When the sea water level in the evaporator 4 drops to the set threshold of the capacitance level gauge 47 due to continuous evaporation, the working states of the first three-way valve 46 and the second three-way valve 413 are switched to convert the water path, and the water pump 6 is started. Sea water is replenished into the evaporator 4 through the water inlet pipe 41 and the third water pipe 45. After reaching the preset upper liquid level limit, the water pump 6 automatically stops, ensuring that there is enough sea water in the evaporator 4 to generate evaporation, siphon and vortex. As the sea water continues to evaporate, the precipitated salt forms scale under the action of high-speed swirling and is thrown towards the inner wall of the evaporator 4 by centrifugal force. The auger mechanism 48 catches the scale, and the high-speed swirling sea water drives the auger mechanism 48 to rotate by impacting the blades 412. The rotation direction of the auger mechanism 48 is opposite to the swirling direction of the sea water. Under the continuous swirling and advancing of the auger mechanism 48, the scale continuously rises and finally reaches the discharge end 420. Under the action of centrifugal force, the scale is thrown out and finally falls into the aggregate box 5. The auger mechanism 48 scrapes the scale adhering to the inner wall of the evaporator 4 during swirling, and the scraper 419 scrapes the scale sinking to the bottom of the evaporator 4 and then conveys it away by the auger mechanism 48.

[0038] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An environmentally friendly multi-effect evaporator for seawater desalination, comprising a storage station (1), a base (3) and an evaporator (4), wherein a collector (2) is fixedly mounted on the top of the base (3), characterized in that: The evaporator (4) is a conical structure whose inner diameter gradually decreases from top to bottom. The top of the evaporator (4) is connected to an upper cover (415) through a rotating assembly. A condensation assembly is arranged on the top of the upper cover (415). A water pipe (43) is fixedly connected to the top of the upper cover (415). The end of the water pipe (43) away from the upper cover (415) passes through the bottom of the evaporator (4) from the outside, and both ends of the water pipe (43) are connected to the inside of the evaporator (4). The top of the upper cover (415) is fixedly connected to a water injection assembly. An auger mechanism (48) is arranged inside the evaporator (4). A discharge end (420) is arranged at the upper end of the auger mechanism (48), and a scraper (419) is fixedly connected to the lower end.

2. The environmentally friendly multi-effect evaporator for seawater desalination according to claim 1, characterized in that: A material collecting box (5) is fixedly mounted at the center of the base (3), and the evaporator (4) is fixedly mounted at the center of the material collecting box (5). The evaporator (4) is made of stainless steel, and a graphene coating is provided on its inner wall.

3. The environmentally friendly multi-effect evaporator for seawater desalination according to claim 2, characterized in that: The rotating assembly comprises an upper support (422) rotatably connected to the bottom of the upper cover (415); a second bearing (421) is fixedly mounted on the outer wall of the evaporator (4); the second bearing (421) is fixedly connected to the upper support (422) via a second connecting rod (423); a discharge port is provided between the upper support (422) and the second bearing (421); the discharge end (420) corresponds to the position of the discharge port and is located directly above the collecting box (5).

4. The environmentally friendly multi-effect evaporator for seawater desalination according to claim 3, characterized in that: The bottom of the inner wall of the evaporator (4) is rotatably connected to a lower support (410) via a bearing (49); the lower support (410) is fixedly connected to an upper support (422) via a plurality of radially distributed connecting rods (411); and each connecting rod (411) is fixedly connected to a blade (412) on one side close to the axis of the evaporator (4); the auger mechanism (48) is arranged around the periphery of the plurality of connecting rods (411) and is fixedly connected to the connecting rods (411).

5. The environmentally friendly multi-effect evaporator for seawater desalination according to claim 1, characterized in that: The water injection assembly comprises a water pump (6) fixedly mounted on the bottom of the base (3); the water pump (6) is fixedly connected to a second water pipe (44) and a third water pipe (45); the side wall of the second water pipe (44) is fixedly connected to a water inlet pipe (41) via a first three-way valve (46); the ends of the second water pipe (44) and the third water pipe (45) away from the water pump (6) both pass through an upper cover (415); the second water pipe (44) is fixedly connected to the side wall of the first water pipe (43) via a second three-way valve (413); and the third water pipe (45) is connected to the interior of the evaporator (4).

6. The environmentally friendly multi-effect evaporator for seawater desalination according to claim 5, characterized in that: A hydroelectric generator (414) is fixedly mounted on the end of the water pipe 1 (43).

7. The environmentally friendly multi-effect evaporator for seawater desalination according to claim 1, characterized in that: A capacitance liquid level meter (47) is fixedly mounted on the inner wall of the evaporator (4).

8. The environmentally friendly multi-effect evaporator for seawater desalination according to claim 1, characterized in that: The condensing assembly includes an air collecting chamber (416) arranged at the top center of the upper cover (415), and the air collecting chamber (416) is connected to the inside of the evaporator (4), a cooling fin (417) is fixedly installed on the inner wall of the air collecting chamber (416), and a water collecting chamber (418) is fixedly installed on the top of the upper cover (415), the cooling fin (417) extends through the water collecting chamber (418), and one end of the cooling fin (417) close to the water collecting chamber (418) is inclined downward, and the water collecting chamber (418) is fixedly connected to a water outlet pipe (42).

9. The environmentally friendly multi-effect evaporator for seawater desalination according to claim 1, characterized in that: An arc-shaped guide rail (31) is fixedly mounted on the top of the base (3), the arc-shaped guide rail (31) is located at the periphery of the evaporator (4), the arc-shaped guide rail (31) is slidably connected to a frame (22), and the side wall of the frame (22) is fixedly connected to the collector (2) via an adjustment frame (21).

10. The environmentally friendly multi-effect evaporator for seawater desalination according to claim 9, characterized in that: A plurality of photovoltaic panels (23) are evenly and fixedly mounted on the top of the frame (22), and a photosensitive sensor (24) is fixedly mounted on the top of the heat collector (2).

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