Evaporative cooling system and water-turbine generator set

Abstract

The invention relates to the technical field of heat dissipation, particularly provides an evaporative cooling system and a water-turbine generator set, and aims to solve the problem of how to perform online water removal on a cooling working medium in the operation process of the water-turbine generator set. In order to achieve the purpose, the evaporative cooling system comprises a condenser, the condenser is provided with a liquid return pipeline and an exhaust pipeline in a communicating mode, the liquid return pipeline and the exhaust pipeline are used for being connected with a heating body, and the condenser is internally provided with a first space communicating with the air inlet end of the condenser and a second space communicating with the liquid discharging end of the condenser; the gas-liquid separation device is located between the gas inlet end of the condenser and the second space; the adsorption structure is located below the second space and can separate the gas-liquid mixture entering the condenser into a gas part and a liquid part, the gas part enters the second space to be condensed, and the liquid part downwards flows through the adsorption structure so that the adsorption structure can absorb moisture in the liquid part. According to the invention, on-line water removal of the working medium in the evaporative cooling system can be realized.

Description

Technical Field

[0001] The present application relates to the field of heat dissipation technology, and specifically provides an evaporative cooling system and a hydro-turbine generator set. Background Art

[0002] The heat dissipation problem during the operation of the hydro-turbine generator set directly affects its working efficiency and operating stability. At present, the evaporative cooling technology using phase change materials as the cooling medium is gradually being used in hydro-turbine generator sets because of its advantages over water cooling, air cooling, etc., such as high cooling efficiency, good insulation performance, and low operating pressure of the self-circulation system.

[0003] During the long-term operation of the hydro-turbine generator set, the water content in the cooling medium will continue to increase due to various factors such as condensation on the condenser and the introduction of external air during the condenser exhaust inspection. The increase in water content in the system not only affects the cooling efficiency, but also causes changes in the insulation performance of the medium, which may affect the internal circuit of the generator set. In some related technologies, the water is usually removed from the medium by regularly shutting down the hydro-turbine generator set for inspection. However, this offline inspection method is a fixed-cycle inspection mode, and it is impossible to remove the water from the medium in time during the operation of the generator set. In addition, the discharge and injection of the medium will inevitably cause loss, which will result in certain economic losses.

[0004] Accordingly, the art needs a new technical solution to solve the above problems. Summary of the invention

[0005] The present application aims to solve the above technical problem, that is, to solve the problem of how to remove water from the cooling medium online during the operation of the hydro-generator set.

[0006] In a first aspect, the present application provides an evaporative cooling system comprising:

[0007] A condenser, which is connected with a liquid return pipeline and an exhaust pipeline respectively, the liquid return pipeline and the exhaust pipeline are used to be connected to the heating element, and the condenser has a first space connected to the air inlet end of the condenser and a second space connected to the liquid discharge end of the condenser;

[0008] a gas-liquid separation device, located between the gas inlet end of the condenser and the second space;

[0009] The adsorption structure is located below the second space. The gas-liquid separation device can separate the gas-liquid mixture entering the condenser into a gas part and a liquid part. The gas part enters the second space for condensation, and the liquid part flows downward through the adsorption structure so that the adsorption structure absorbs the moisture in the liquid part.

[0010] In one technical solution of the above evaporative cooling system, the gas-liquid separation device comprises:

[0011] The first guide plate has a guide surface facing the air inlet end of the condenser. When the gas-liquid mixture flows through the first guide plate, the liquid part can adhere to the guide surface and flow downward along the guide surface, and the gas part can rise along the guide surface to achieve gas-liquid separation.

[0012] In a technical solution of the above evaporative cooling system, a plurality of the first guide plates are provided, and the plurality of the first guide plates are arranged at intervals along the target direction;

[0013] The target direction is set at an angle with both the horizontal direction and the vertical direction.

[0014] In a technical solution of the above evaporative cooling system, a plurality of through holes are formed on the first guide plate.

[0015] In a technical solution of the above evaporative cooling system, a perforated plate structure is provided at a position of the second space close to the gas-liquid separation device.

[0016] In a technical solution of the above-mentioned evaporative cooling system, the first space includes a first area and a second area, the first area corresponds to the second space in the horizontal direction, the gas-liquid separation device is located in the first area, the second area corresponds to the second space in the vertical direction, and the adsorption structure is located in the second area.

[0017] In a technical solution of the above evaporative cooling system, the evaporative cooling system further comprises:

[0018] The second guide plate is arranged in the first area and is located below the gas-liquid separation device. The liquid part can flow along the second guide plate to the adsorption structure.

[0019] In a technical solution of the above evaporative cooling system, the evaporative cooling system further comprises:

[0020] A sealed joint is arranged on the side wall of the condenser, and the adsorption structure is installed or removed in the first space through the sealed joint.

[0021] In a technical solution of the above evaporative cooling system, the evaporative cooling system comprises:

[0022] A first cooling pipeline, which is located in the second space;

[0023] A second cooling pipeline is located in the first space, and the second cooling pipeline is located below the adsorption structure;

[0024] The liquid discharge end includes a first liquid discharge end communicating with the second space and a second liquid discharge end communicating with the first space, and both the first liquid discharge end and the second liquid discharge end are communicated with the liquid return pipeline.

[0025] In a second aspect, the present application provides a hydro-turbine generator set, comprising the evaporative cooling system described in any one of the first aspects, wherein the heating element is a stator, and the liquid return pipeline and the exhaust pipeline are connected to the wire rods in the stator to form a circulation loop.

[0026] As mentioned above, according to the difference in boiling points between the phase change working fluid and water, the present application separates the gas-liquid mixture entering the condenser into a gas part and a liquid part during the self-circulating evaporative cooling process. The gas part contains only gas phase working fluid, which is condensed and liquefied after entering the second space and continues to participate in the circulation, while the water in the liquid part is absorbed by the adsorption structure, thereby realizing online water removal of the working fluid based on the above-mentioned "distillation method" principle during the operation of the evaporative cooling system.

[0027] Compared with the traditional offline processing method, the present application adopts the above technical solution for online water removal. First, there is no need to shut down the power equipment such as the turbine generator set to be cooled, so as to ensure the engineering efficiency, and also save the discharge and injection process of the phase change working fluid, thereby reducing the workload and reducing the working fluid loss. Secondly, the online water removal method can process the water in the system in real time to ensure the timeliness and efficiency of water removal, thereby reducing the potential safety hazards such as circuit short circuit caused by excessive water content in the system, and improving the safety of equipment operation. Finally, the present application sets the water removal process in the condenser, and the condenser is the end of the entire self-circulation system. At the same time, based on the "gas-liquid separation", the circulating working fluid is divided into a gas part and a liquid part. The gas part directly participates in the circulation, and the liquid part is dehydrated through the adsorption structure, which can minimize the circulation resistance of the working fluid and ensure that the self-circulation process of the working fluid is basically unaffected. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings, in which:

[0029] Figure 1 is a schematic diagram of an evaporative cooling system according to an embodiment of the present application;

[0030] In the figures, the reference numerals refer to the following:

[0031] 100. Condenser; 110. Gas-liquid separation device; 120. Adsorption structure; 130. First space; 131. First region; 132. Second region; 140. Second space; 141. Orifice plate structure; 150. First cooling pipeline; 160. Second cooling pipeline; 200. Liquid return pipeline; 210. First liquid discharge end; 220. Second liquid discharge end; 230. Liquid collecting pipe; 300. Exhaust pipeline; 310. Gas collecting pipe; 400. Heater; 500. Second guide plate; 600. Sealed joint. DETAILED DESCRIPTION

[0032] The preferred embodiments of the present application are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present application and are not used to limit the scope of protection of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0033] It should be noted that in the description of this application, the terms "upper", "lower", "left", "right", "inner", "outer", etc., which indicate directions or positional relationships, are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the relevant devices or components must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on this application. In addition, the ordinal numbers "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0035] When the operating turbine generator sets use the evaporative cooling system for heat dissipation, leakage of the condenser secondary cooling water pipeline, introduction of external air into the condenser due to exhaust maintenance, or condensation on the condenser surface will cause the water content in the evaporative cooling system to increase. The water content in the phase change working fluid directly affects its cooling efficiency and insulation performance. When the water content is too high, it affects the purity of the phase change working fluid, resulting in a decrease in its cooling efficiency. More importantly, when the water content in the working fluid increases, its insulation performance is affected. Once the working fluid leaks, a short circuit may occur in the circuit of the turbine generator set, causing a safety hazard.

[0036] Therefore, in some related technologies, the working fluid is dehydrated by regular inspection of the evaporative cooling system. However, this method requires the shutdown of the hydro-generator set, and online dehydration cannot be achieved, which will affect the actual project progress. Moreover, the processing cycle of this offline dehydration method is generally fixed and long. Therefore, when the evaporative cooling system leaks water due to an unexpected situation at a certain time, causing the water content of the working fluid to exceed the standard, this method cannot be processed in time, which may cause safety hazards. On the other hand, the above-mentioned offline processing method requires that all the working fluids in the evaporative cooling system be discharged for dehydration and then refilled into the system. In the process of discharging and filling the working fluid, it is inevitable that the working fluid will be lost, resulting in economic losses. At the same time, the discharge and filling operations of the working fluid also have certain on-site operation and maintenance difficulties, which invisibly increases the workload of the staff.

[0037] It can be seen that the above-mentioned off-line water removal method has great disadvantages.

[0038] Reference Figure 1 , is an evaporative cooling system according to an embodiment of the present application, which includes a condenser 100, a liquid return pipeline 200, an exhaust pipeline 300, and a gas-liquid separation device 110 and an adsorption structure 120 arranged in the condenser 100.

[0039] The condenser 100 has an air inlet end and a liquid discharge end, a liquid return line 200 is connected to the air inlet end of the condenser 100, an exhaust line 300 is connected to the liquid discharge end of the condenser 100, and a heating element 400 is also connected between the liquid return line 200 and the exhaust line 300. It should be noted that, for a hydroelectric generator set, the heating element 400 may be a stator of the generator set. For example, in one implementation, the liquid return line 200 and the exhaust line 300 are both connected to the channel in the stator wire rod, so that the condenser 100, the liquid return line 200, the exhaust line 300 and the heating element 400 form a circulation loop. Of course, the above method is only an exemplary scenario provided by the present application. In some other application scenarios of the evaporative cooling system, the heating element 400 may also be a radiator in a structural form such as a coolant box. The radiator contains a phase change medium, and the return liquid pipeline 200 and the exhaust pipeline 300 are connected to the radiator to form a loop. The above-mentioned adaptive adjustments made based on different application scenarios of the evaporative cooling system should all be within the protection scope of the present application.

[0040] The condenser 100 has a first space 130 and a second space 140, the first space 130 is connected to the air inlet end of the condenser 100, and the second space 140 is connected to the liquid discharge end of the condenser 100. The second space 140 and the gas-liquid separation device 110 are both located at the upper part of the condenser 100, and the gas-liquid separation device 110 is located between the air inlet end of the condenser 100 and the second space 140, so that the gas-liquid mixture from the exhaust pipeline 300 enters the condenser 100 and first passes through the gas-liquid separation device 110, and the gas-liquid separation device 110 separates the gas-liquid mixture into a gas part and a liquid part, and the gas part moves forward along the gas path to the second space 140, and is condensed into a liquid state in the second space 140 and then flows back downward through the liquid return pipeline 200. The adsorption structure 120 is located below the second space 140, so that the above-mentioned liquid part flows downward to the adsorption structure 120 under the action of gravity, and the adsorption structure 120 absorbs the moisture in the liquid part. It should be noted that the adsorption structure 120 can only absorb moisture but not liquid phase working fluid. The specific composition of the adsorption structure 120 can be 3A molecular sieve, a high molecular polymer with a three-dimensional network structure, a reverse osmosis membrane and other membrane materials, etc., which can absorb moisture in the liquid part and allow liquid working fluid to pass through.

[0041] It should be understood that due to the different boiling points of the phase change working fluid and water (the boiling point of the phase change working fluid used in the evaporative cooling system is generally around 50°C, for example, the boiling point of some fluorocarbon compounds is generally 53°C-55°C, while the boiling point of water is 100°C), the phase change working fluid in the system will often carry part of the water up with it during the vaporization and boiling process, but the water in the gas-liquid mixture that enters the first space 130 does not reach the boiling point. Therefore, the gas part of the gas-liquid mixture is only the gas phase working fluid, and the water must only exist in the liquid part. In this way, the working fluid and the water are separated.

[0042] As described above, the present application separates the gas-liquid mixture entering the condenser 100 into a gas part and a liquid part according to the difference in boiling points between the phase change working fluid and water during the self-circulating evaporative cooling process. The gas part contains only gas phase working fluid, which is condensed and liquefied after entering the second space 140 and continues to participate in the circulation, while the moisture in the liquid part is absorbed by the adsorption structure 120, thereby realizing online dehydration of the working fluid based on the above-mentioned "distillation method" principle during the operation of the evaporative cooling system.

[0043] Compared with the traditional offline processing method, the present application adopts the above technical solution for online water removal. First, there is no need to shut down the power equipment such as the turbine generator set to be cooled, so as to ensure the engineering efficiency, and also save the discharge and injection process of the phase change working fluid, thereby reducing the workload and reducing the working fluid loss. Secondly, the online water removal method can process the water in the system in real time, ensure the timeliness and efficiency of water removal, thereby reducing the potential safety hazards such as circuit short circuit caused by excessive water content in the system, and improve the safety of equipment operation. Finally, the present application sets the water removal process in the condenser 100, and the condenser 100 is the end of the entire self-circulation system. At the same time, based on the "gas-liquid separation", the circulating working fluid is divided into a gas part and a liquid part. The gas part directly participates in the circulation, and the liquid part is dehydrated through the adsorption structure 120, which can minimize the circulation resistance of the working fluid and ensure that the self-circulation process of the working fluid is basically unaffected.

[0044] Reference Figure 1 As an implementation method of the present application, a first cooling pipeline 150 and a second cooling pipeline 160 are provided in the condenser 100. The first cooling pipeline 150 is located in the second space 140. The first cooling pipeline 150 is used to condense the gas portion entering the second space 140, take away the heat in the gas portion, and quickly liquefy the gas portion. Accordingly, a first liquid discharge end 210 connected to the bottom of the second space 140 is provided on the side wall of the condenser 100. The first liquid discharge end 210 is connected to the liquid return pipeline 200 so that the liquid working medium at the bottom of the second space 140 enters the liquid return pipeline 200. The second cooling pipeline 160 is located in the first space 130 and below the adsorption structure 120. The second cooling pipeline 160 is used to liquefy the residual gas-phase working medium below the first space 130. Accordingly, a second liquid discharge end 220 connected to the bottom of the first space 130 is provided on the side wall of the condenser 100. The second liquid discharge end 220 is connected to the return liquid pipeline 200 so that the liquid-phase working medium at the bottom of the first space 130 enters the return liquid pipeline 200.

[0045] It should be understood that, although most of the gas phase working medium separated by the gas-liquid separation device 110 enters the second space 140, some gas phase working medium will inevitably exist in the first space 130. After sinking to the bottom of the adsorption structure 120, the second cooling pipeline 160 condenses the gas phase working medium into a liquid phase working medium. In addition, in the process of the gas-liquid mixture entering the first space 130 in contact with the gas-liquid separation device 110, part of the gas phase working medium will also be liquefied and pass downward through the adsorption structure 120. Therefore, a part of the liquid phase working medium will also be formed at the bottom of the first space 130, and the liquid phase working medium and the liquid phase working medium in the second space 140 will flow through the return liquid pipeline 200 for circulation.

[0046] Reference Figure 1 The return liquid pipeline 200 is also connected to a liquid collecting pipe 230, which is used to uniformly recover the liquid phase working medium so that the liquid phase working medium enters the heating element 400 through the liquid collecting pipe 230. The exhaust pipeline 300 is also connected to a gas collecting pipe 310, which is used to uniformly collect the gas phase working medium so that the gas phase working medium enters the condenser 100 after passing through the gas collecting pipe 310.

[0047] As an implementation method of this application, refer to Figure 1 , the first space 130 includes a first area 131 and a second area 132, wherein the first area 131 is close to the air inlet end of the condenser 100 and corresponds to the second space 140 in the horizontal direction, and the second area 132 corresponds to the second space 140 in the vertical direction. The gas-liquid separation device 110 is located in the first area 131, and the adsorption structure 120 and the second cooling pipeline 160 are located in the second area 132. As mentioned above, in the internal space layout of the condenser 100, the second area 132 is located obliquely below the first area 131. Such a setting can reduce the space of the second area 132, which is not only conducive to the unified collection of the liquid part to facilitate the targeted moisture absorption of the adsorption structure 120, but also can make the condenser 100 more compact in structure and reduce its occupied space.

[0048] In one embodiment of the present application, the gas-liquid separation device 110 includes a plurality of first guide plates, each of which has a guide surface facing the air inlet end of the condenser 100, and the guide surface may be a curved surface or an inclined surface, for example, Figure 1 In the implementation shown, the first guide plate is an arc-shaped surface, the guide surface is an arc surface, and the concave portion of the arc surface faces the air inlet end of the condenser 100. In this way, when the gas-liquid mixture contacts the first guide plate, the liquid part of the gas-liquid mixture will adhere to the guide surface and flow downward along the guide surface under the action of gravity, while the gas part will rise along the guide surface to the upper space of the first area 131 under the guidance of the guide surface, and then enter the second space 140.

[0049] Optionally, in order to reduce the flow resistance of the gas part, a plurality of through holes can be opened on the first guide plate, and the plurality of through holes can be arranged in an array along the guide surface of the first guide plate. In this way, after the gas part is separated from the liquid part, the gas part can directly pass through the first guide plate and move in the direction of the second space 140.

[0050] In one implementation, a plurality of first guide plates are arranged at intervals along a target direction in the first region 131. The target direction is a direction inclined downward, that is, the target direction is set at an angle with both the horizontal direction and the vertical direction, so that adjacent first guide plates overlap in the horizontal direction and are staggered in the vertical direction. In this way, along the movement path of the gas-liquid mixture, the plurality of first guide plates separate the gas part and the liquid part in the gas-liquid mixture respectively, and the plurality of first guide plates are staggered in the vertical direction, which can increase the occupied area of ​​the gas-liquid separation device 110 in the longitudinal cross section of the first region 131, and fully separate the gas-liquid mixture passing through the first region 131 as much as possible.

[0051] Optionally, a perforated plate structure 141 is further provided in the second space 140 near the gas-liquid separation device 110. The perforated plate structure 141 serves as the last barrier for entering the second space 140. The perforated plate structure 141 can perform gas-liquid separation again on the gas portion entering the second space 140, filter the liquid that may be entrained in the gas portion, and allow the filtered liquid to flow downward along the perforated plate structure 141 to the second area 132.

[0052] Furthermore, a second guide plate 500 is also provided in the first area 131. The second guide plate 500 is located below the gas-liquid separation device 110. The second guide plate 500 may be an arc-shaped plate or a straight plate inclined toward the second area 132. After the liquid portion separated by the gas-liquid separation device 110 falls on the surface of the second guide plate 500 under the action of gravity, it can flow toward the second area 132 under the guidance of the second guide plate 500, thereby avoiding accumulation of the liquid portion in the second area 132.

[0053] Reference Figure 1 In one implementation, a sealing joint 600 is further provided on the side wall of the condenser 100, and the sealing joint 600 passes through the side wall of the condenser 100, and the adsorption structure 120 can be installed or removed in the second area 132 through the sealing joint 600. The function of the sealing joint 600 is to achieve isolation between the inside of the condenser 100 and the outside through the sealing switch in the sealing joint 600 during the process of installing or removing the adsorption structure 120. That is, when the adsorption structure 120 is in an installed state, the adsorption structure 120 passes through the sealing joint 600, the end of the adsorption structure 120 is located outside the condenser 100, and the sealing switch in the sealing joint 600 is in an open state, at which time the adsorption structure 120 itself blocks the sealing joint 600 to achieve sealing; when the adsorption structure 120 is removed, the adsorption structure 120 is pulled outward, and in this process, the sealing switch in the sealing joint 600 is automatically closed to achieve sealing.

[0054] In this way, during the operation of the evaporative cooling system, when the moisture in the adsorption structure 120 is saturated, the adsorption structure 120 can be plugged in and out online through the sealed joint 600 without affecting the sealing of the system, which is conducive to the replacement of the adsorption structure 120 at any time.

[0055] It should be noted that, although in the above embodiments of the present application, the first space 130 includes the first area 131 and the second area 132, and the second area 132 is located obliquely below the first area 131, it is only an optional method of the present application. In some other implementations, the projection of the second area 132 in the horizontal plane can also cover the first area 131, and the present application does not limit their relative positions. Alternatively, in other implementations, the overall cross-section of the first space 130 can also be an irregular structure such as an oblique channel or an arc-shaped channel, and the adjustments made to the specific structural forms of the first space 130 and the second space 140 should all be within the scope of protection of the present application.

[0056] The present application also discloses a hydro-turbine generator set, which includes the evaporative cooling system in any of the above-mentioned embodiments. Specifically, when the evaporative cooling system is applied in the hydro-turbine generator set, the heating element 400 can be a stator. At this time, the return liquid pipeline 200 and the exhaust pipeline 300 are connected to the wire rods in the stator to form a circulation loop.

[0057] So far, the technical solutions of the present application have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present application is obviously not limited to these specific embodiments. Without departing from the principles of the present application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present application.

Claims

1. An evaporative cooling system, characterized in that: include: A condenser (100) is provided with a liquid return pipeline (200) and an exhaust pipeline (300) respectively in communication with each other, the liquid return pipeline (200) and the exhaust pipeline (300) being used to be connected to a heating element (400), and the condenser (100) has a first space (130) in communication with an air inlet end of the condenser (100) and a second space (140) in communication with a liquid discharge end of the condenser (100); A gas-liquid separation device (110) located between the gas inlet end of the condenser (100) and the second space (140); The adsorption structure (120) is located below the second space (140), and the gas-liquid separation device (110) is capable of separating the gas-liquid mixture entering the condenser (100) into a gas portion and a liquid portion, wherein the gas portion enters the second space (140) for condensation, and the liquid portion flows downward through the adsorption structure (120) so that the adsorption structure (120) absorbs moisture in the liquid portion.

2. The evaporative cooling system according to claim 1, characterized in that: The gas-liquid separation device (110) comprises: A first guide plate has a guide surface facing the air inlet end of the condenser (100); when the gas-liquid mixture flows through the first guide plate, the liquid portion can adhere to the guide surface and flow downward along the guide surface, and the gas portion can rise along the guide surface to achieve gas-liquid separation.

3. The evaporative cooling system according to claim 2, characterized in that: A plurality of the first guide plates are provided, and the plurality of the first guide plates are arranged at intervals along the target direction; The target direction is set at an angle with both the horizontal direction and the vertical direction.

4. The evaporative cooling system according to claim 2, characterized in that: The first guide plate is provided with a plurality of through holes.

5. The evaporative cooling system according to claim 1, characterized in that A perforated plate structure (141) is provided in the second space (140) at a position close to the gas-liquid separation device (110).

6. The evaporative cooling system according to claim 1, characterized in that The first space (130) includes a first area (131) and a second area (132), the first area (131) corresponds to the second space (140) in the horizontal direction, the gas-liquid separation device (110) is located in the first area (131), the second area (132) corresponds to the second space (140) in the vertical direction, and the adsorption structure (120) is located in the second area (132).

7. The evaporative cooling system according to claim 6, characterized in that The evaporative cooling system further comprises: A second guide plate (500) is arranged in the first area (131) and is located below the gas-liquid separation device (110), and the liquid portion can flow along the second guide plate (500) to the adsorption structure (120).

8. The evaporative cooling system according to claim 1, characterized in that The evaporative cooling system further comprises: A sealed joint (600) is arranged on the side wall of the condenser (100), and the adsorption structure (120) is installed or removed in the first space (130) through the sealed joint (600).

9. The evaporative cooling system according to any one of claims 1 to 8, characterized in that: The evaporative cooling system comprises: A first cooling pipeline (150) located in the second space (140); A second cooling pipeline (160), which is located in the first space (130), and the second cooling pipeline (160) is located below the adsorption structure (120); The liquid discharge end comprises a first liquid discharge end (210) connected to the second space (140) and a second liquid discharge end (220) connected to the first space (130); the first liquid discharge end (210) and the second liquid discharge end (220) are both connected to the liquid return pipeline (200).

10. A hydro-generator set, characterized in that: The evaporative cooling system comprises any one of claims 1 to 9, wherein the heating element (400) is a stator, and the liquid return pipeline (200) and the exhaust pipeline (300) are connected to the wire rods in the stator to form a circulation loop.

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