Water evaporation type physical heat dissipation hydraulic pump station

Abstract

The invention discloses a water evaporation type physical heat dissipation hydraulic pump station, and relates to the technical field of hydraulic pump stations, the water evaporation type physical heat dissipation hydraulic pump station comprises an oil tank, a liquid storage tank is arranged at the bottom of the oil tank, external heat dissipation mechanisms are arranged on the two sides of the oil tank, and an internal heat dissipation mechanism is further arranged in the oil tank; the external heat dissipation mechanism comprises a first hollow plate and a second hollow plate which are arranged on the two edges of one side of the oil tank correspondingly, and a plurality of heat dissipation fins are rotationally arranged between the opposite sides of the first hollow plate and the second hollow plate at equal intervals. According to the water evaporation type physical heat dissipation hydraulic pump station, in the heat dissipation process, cooling liquid in the liquid storage tank wets the cotton swabs through the capillary action, further wets the sponge plate and the cotton cloth and is finally conducted to the heat dissipation fins. According to the design, the evaporation and capillary effects of the cooling liquid are utilized, and the heat dissipation capacity of the heat dissipation fins is effectively improved. By improving the heat dissipation effect of the heat dissipation fins, the overall cooling efficiency is improved, and it is ensured that the hydraulic system can still operate stably in the high-temperature environment.

Description

Technical Field

[0001] This invention relates to the field of hydraulic pump station technology, specifically a water evaporation-type physical cooling hydraulic pump station. Background Technology

[0002] Hydraulic pump stations, as the core power source of hydraulic systems, play a vital role in fields such as construction machinery, petrochemicals, and aerospace. Their main function is to convert mechanical energy into hydraulic energy through a hydraulic pump, driving various hydraulic actuators. During the operation of a hydraulic pump station, the high-speed flow and friction of the hydraulic oil generate a significant amount of heat. If heat dissipation is not timely and effective, excessively high oil temperatures can lead to a decline in hydraulic system performance and even equipment failure.

[0003] Traditional hydraulic pump station cooling primarily relies on a combination of heat dissipation fins and fans. The heat dissipation fins increase the surface area, utilizing air convection to remove heat, while the fan accelerates the cooling process through forced convection. This cooling method can meet the needs of ordinary operating conditions to a certain extent, but its cooling efficiency often falls short of ideal under high loads or high temperatures. Therefore, developing a more efficient and reliable cooling method has become an important direction for the development of hydraulic pump station technology. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a water evaporation-based physical cooling hydraulic pump station, which solves the problem that existing hydraulic pump stations have unsatisfactory heat dissipation effects, mainly relying on heat dissipation fins, and cannot meet the needs of high-performance hydraulic pump stations.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solution: a water evaporation type physical cooling hydraulic pump station, including an oil tank, a liquid storage tank at the bottom of the oil tank, external cooling mechanisms on both sides of the oil tank, and an internal cooling mechanism inside the oil tank.

[0006] The external heat dissipation mechanism includes a first hollow plate and a second hollow plate respectively disposed at the two edges of one side of the oil tank. A plurality of heat dissipation fins are rotatably disposed at equal intervals between the opposite sides of the first and second hollow plates. One side of the heat dissipation fins contacts the side of the oil tank. A conduit communicating with the interior of the second hollow plate is disposed at its bottom, with the other end of the conduit connected to one side of the liquid storage tank. A sponge plate is connected to the inner wall of the second hollow plate, and a cotton swab is connected to the bottom of the sponge plate. The cotton swab passes through the conduit and is located at the bottom of the liquid storage tank. A return pipe communicating with the interior of the first hollow plate is disposed at its bottom, with the other end of the return pipe located inside the liquid storage tank. A plurality of cotton cloths corresponding to each heat dissipation fin are equidistantly disposed on one side of the sponge plate. The cotton cloths pass through the second hollow plate and overlap the heat dissipation fins in a horizontal state. The external heat dissipation mechanism also includes a capillary control mechanism for squeezing the sponge plate and controlling its capillary speed.

[0007] Preferably, a liquid accumulation plate is provided on one side of the inside of the liquid storage tank at an upward angle, one end of the return pipe is located above the liquid accumulation plate, and a gap is left between the other side of the liquid accumulation plate and the other side of the inside of the liquid storage tank, so that the return coolant can accumulate on the liquid accumulation plate until it falls from the gap.

[0008] Preferably, the end of the cotton cloth away from the second hollow plate is disposed inside the first hollow plate, so that excess coolant can flow back into the storage tank, and when the heat dissipation fins rotate to a horizontal state, the upper part of the heat dissipation fins contacts the bottom of the cotton cloth.

[0009] Preferably, the capillary control mechanism includes an adjusting bolt rotatably disposed on one side of the second hollow plate. A matching nut sleeve is screwed onto the outside of the adjusting bolt. L-shaped rods are connected to both the upper and lower sides of the nut sleeve. The other ends of the two L-shaped rods slide laterally through one side of the second hollow plate and are located inside it. A pressure plate for squeezing the sponge plate is connected between the other ends of the two L-shaped rods.

[0010] Preferably, the liquid storage tank has two screws rotatably mounted inside, a drive motor for driving one of the screws is installed on one side of the outside of the liquid storage tank, and two transmission wheels are rotatably mounted on the other side of the outside of the liquid storage tank. The two transmission wheels are connected by a belt drive, and one end of each transmission wheel is connected to one end of the two screws. A movable plate is threadedly connected to the outside of the two screws. Pull ropes are connected to the bottom of both ends of the movable plate. A counterweight is connected to the lower end of the cotton swab, and the other end of the pull rope is connected to the counterweight.

[0011] Preferably, the liquid storage tank is filled with coolant, and the level of the coolant is lower than that of the moving plate.

[0012] Preferably, the internal heat dissipation mechanism includes a heat-conducting rod disposed at the center of the oil tank, a heat-conducting shell disposed on the outside of the heat-conducting rod, the bottom of the heat-conducting shell being connected to the bottom of the inner side of the oil tank by a support rod, and the heat-conducting shell being filled with paraffin filler. The heat-conducting rod has two symmetrically arranged cavities inside, and the inner sidewalls of the two cavities are connected with shape memory alloys. The other end of the shape memory alloy is connected to a piston block, one side of the piston block is connected to a piston rod, and the other end of the piston rod is connected to a connecting plate. One side of the connecting plate is horizontally connected to several movable rods corresponding to each heat dissipation fin. The other end of the movable rod slides laterally through the inner sidewall of the oil tank and is hinged to a connecting rod. The other end of the connecting rod is hinged to the bottom of the heat dissipation fin.

[0013] Preferably, the shape memory alloy undergoes a phase transition at both below 25 degrees Celsius and above 50 degrees Celsius. Above 50 degrees Celsius, the shape memory alloy is in a horizontal straight line shape, at which point the heat dissipation fins are in a horizontal state. Below 25 degrees Celsius, the shape memory alloy is in a spiral shape, at which point the heat dissipation fins are in a closed state.

[0014] This invention provides a water evaporation-based physical cooling hydraulic pump station, which has the following advantages compared with the prior art: 1. This water-evaporative physical cooling hydraulic pump station utilizes the evaporation of coolant to physically cool the heat dissipation process. During cooling, the coolant in the reservoir wets the cotton swabs through capillary action, further wetting the sponge plate and cotton cloth, and finally transferring the coolant to the heat dissipation fins. This design effectively enhances the heat dissipation capacity of the heat dissipation fins by leveraging the evaporation and capillary action of the coolant. By improving the heat dissipation effect of the heat dissipation fins, the overall cooling efficiency is improved, ensuring stable operation of the hydraulic system even in high-temperature environments. Furthermore, the speed of the capillary action can be controlled via a capillary control mechanism.

[0015] 2. This water-evaporative physical cooling hydraulic pump station effectively reduces oil temperature and prevents overheating by absorbing heat through the melting of paraffin filler. Simultaneously, the phase change characteristics of the shape memory alloy cause the cooling fins to automatically open for secondary heat dissipation. This design not only controls oil temperature in a timely manner but also ensures the stable operation of the hydraulic system, avoiding equipment failures caused by high temperatures.

[0016] 3. This water-evaporative physical cooling hydraulic pump station, when the pump station stops working, the temperature inside the oil tank drops, the paraffin filler gradually solidifies, the shape memory alloy returns to its spiral shape, and the cooling fins close. This design effectively prevents dust from entering the cooling fins when not in operation, keeping them clean. This improved dustproof effect helps enhance the long-term reliability and stability of the equipment. When the hydraulic pump station is working, the oil temperature inside the tank gradually rises.

[0017] 4. This water-evaporative physical cooling hydraulic pump station features a tilted condensate plate design. This design allows excess coolant to flow naturally and gradually cool as it passes over the plate. When the coolant flows down the cloth and through the return pipe into the condensate plate, the tilted plate causes it to accumulate instead of flowing down immediately. During this accumulation process, the coolant exchanges heat with the surrounding environment, gradually reducing its temperature. Once the coolant has accumulated to a certain level, it flows back to the bottom of the reservoir, mixing with the coolant already there to form a circulation system. This design not only effectively reduces coolant waste but also ensures proper temperature regulation, improving the overall cooling efficiency of the system.

[0018] 5. This water-evaporative physical cooling hydraulic pump station, when not in operation, uses a drive motor to move the screw and transmission wheel, shifting the moving plate and pulling the cotton swab away from the coolant. This design prevents coolant waste and evaporation in non-operating states, extending the coolant's lifespan. Simultaneously, it keeps the system dry and clean, preventing moisture or dirt accumulation from affecting equipment performance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the external heat dissipation mechanism of the present invention; Figure 3 This is a schematic diagram of the capillary control mechanism of the present invention; Figure 4 This is a schematic diagram of the internal structure of the liquid storage tank of the present invention; Figure 5 This is a cross-sectional view of the liquid storage tank structure of the present invention; Figure 6 This is a schematic diagram of the internal heat dissipation mechanism of the present invention.

[0020] In the diagram: 1. Oil tank; 2. Liquid reservoir; 21. Screw; 22. Drive motor; 23. Transmission wheel; 24. Belt; 25. Moving plate; 26. Pull rope; 27. Liquid collection plate; 3. External heat dissipation mechanism; 31. First hollow plate; 32. Second hollow plate; 33. Heat dissipation fins; 34. Conduit; 35. Sponge board; 36. Cotton swab; 361. Counterweight; 37. Cotton cloth; 38. Return pipe; 39. Capillary control mechanism; 391. Adjusting bolt; 392. Nut sleeve; 393. L-shaped rod; 394. Pressure plate; 4. Internal heat dissipation mechanism; 41. Heat-conducting rod; 42. Heat-conducting shell; 43. Paraffin wax filler; 44. Cavity; 45. Shape memory alloy; 46. Piston block; 47. Piston rod; 48. Connecting plate; 49. Moving rod; 410. Connecting rod; 411. Support rod. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-6 This invention provides five technical solutions: Example 1

[0023] Please see Figure 1 In this embodiment of the invention, a water evaporation type physical cooling hydraulic pump station includes an oil tank 1, a liquid storage tank 2 is provided at the bottom of the oil tank 1, and external cooling mechanisms 3 are provided on both sides of the oil tank 1. An internal cooling mechanism 4 is also provided inside the oil tank 1.

[0024] Please see Figures 1-3In this embodiment of the invention, the external heat dissipation mechanism 3 includes a first hollow plate 31 and a second hollow plate 32 respectively disposed at the two edges of one side of the oil tank 1. A plurality of heat dissipation fins 33 are rotatably disposed at equal intervals between opposite sides of the first hollow plate 31 and the second hollow plate 32. One side of the heat dissipation fins 33 contacts the side of the oil tank 1. A conduit 34 communicating with the interior of the second hollow plate 32 is disposed at the bottom of the second hollow plate 32. The other end of the conduit 34 is connected to one side of the liquid storage tank 2. A sponge plate 35 is connected to the inner wall of the second hollow plate 32, and the bottom of the sponge plate 35 is connected to... A cotton swab 36 is attached, which passes through the conduit 34 and is located at the bottom of the liquid storage tank 2. A return pipe 38 communicating with the interior of the first hollow plate 31 is provided at the bottom of the first hollow plate 31, and the other end of the return pipe 38 is located inside the liquid storage tank 2. Several cotton cloths 37 corresponding to each heat dissipation fin 33 are equidistantly arranged on one side of the sponge plate 35. The cotton cloths 37 pass through the second hollow plate 32 and overlap the heat dissipation fins 33 in a horizontal state. The external heat dissipation mechanism 3 also includes a capillary control mechanism 39, which is used to squeeze the sponge plate 35 and control its capillary speed.

[0025] In this embodiment, during heat dissipation, the coolant in the reservoir 2 wets the cotton swabs 36. Utilizing the capillary principle, the cotton swabs 36 wet the sponge plate 35 with coolant, which in turn wets each cotton cloth 37. The cotton cloths 37 then deliver the coolant to the surface of the heat dissipation fins 33, thereby cooling the heat dissipation fins 33 and improving their heat dissipation effect.

[0026] For further details, please refer to Figures 2-3 In this embodiment of the invention, the capillary control mechanism 39 includes an adjusting bolt 391 rotatably disposed on one side of the second hollow plate 32. A matching nut sleeve 392 is screwed onto the outside of the adjusting bolt 391. L-shaped rods 393 are connected to both the upper and lower sides of the nut sleeve 392. The other ends of the two L-shaped rods 393 slide laterally through one side of the second hollow plate 32 and are located inside it. A pressure plate 394 for squeezing the sponge plate 35 is connected between the other ends of the two L-shaped rods 393.

[0027] By rotating the adjusting bolt 391, the nut sleeve 392 is displaced. The nut sleeve 392 causes the L-shaped rod 393 to move the pressure plate 394, which then squeezes the sponge plate 35. By using different squeezing forces, the capillary speed of the sponge plate 35 can be controlled to prevent coolant leakage due to excessively fast capillary action.

[0028] Example 2 differs from Example 1 in that: Please see Figures 4-5 In this embodiment of the invention, a liquid accumulation plate 27 is inclined upward on one side of the inside of the liquid storage tank 2, one end of the return pipe 38 is located above the liquid accumulation plate 27, and a gap is left between the other side of the liquid accumulation plate 27 and the other side of the inside of the liquid storage tank 2, so that the return coolant can accumulate on the liquid accumulation plate 27 until it falls from the gap.

[0029] Please see Figure 2 In this embodiment of the invention, the end of the cotton cloth 37 away from the second hollow plate 32 is disposed inside the first hollow plate 31, so that excess coolant can flow back into the storage tank 2, and when the heat dissipation fins 33 rotate to a horizontal state, the upper part of the heat dissipation fins 33 contacts the bottom of the cotton cloth 37.

[0030] In this embodiment, when there is excess coolant on the cotton cloth 37, it flows into the first hollow plate 31 and then flows into the liquid accumulation plate 27 inside the liquid storage tank 2 through the return pipe 38. Since the liquid accumulation plate 27 is inclined upward, the coolant will accumulate on the liquid accumulation plate 27. The accumulated coolant will gradually increase, and the coolant will not immediately flow to the bottom of the liquid accumulation plate 27. In this way, the temperature of the coolant will gradually decrease. When the coolant accumulates above the liquid accumulation plate 27, the cooled coolant will return to the bottom of the liquid storage tank 2, thereby circulating the coolant.

[0031] Example 3 differs from Example 1 in that: Please see Figures 4-5 In this embodiment of the invention, two screws 21 are rotatably arranged inside the liquid storage tank 2. A drive motor 22 for driving one of the screws 21 to rotate is installed on one side of the outside of the liquid storage tank 2, and two transmission wheels 23 are rotatably arranged on the other side of the outside of the liquid storage tank 2. The two transmission wheels 23 are connected by a belt 24, and one end of the two transmission wheels 23 is connected to one end of the two screws 21 respectively. A movable plate 25 is screwed between the two screws 21. Pull ropes 26 are connected to the bottom of both ends of the movable plate 25. A counterweight 361 is connected to the lower end of the cotton swab 36, and the other end of the pull rope 26 is connected to the counterweight 361.

[0032] In this embodiment, when not in operation, the drive motor 22 drives the screw 21 to rotate, the screw 21 drives the transmission wheel 23 to rotate, the transmission wheel 23 causes the belt 24 to drive another transmission wheel 23 to rotate, the other transmission wheel 23 drives another screw 21 to rotate, thereby driving the moving plate 25 to move laterally. When the moving plate 25 moves away from the drive motor 22, the pull rope 26 on the moving plate 25 will pull the cotton swab 36, causing the cotton swab 36 to leave the coolant position in the reservoir 2. In this way, when not in operation, the coolant will not continue to wet the cotton swab 36. When in operation, the moving plate 25 moves closer to the drive motor 22, the pull rope 26 will gradually unwind, and under the gravity of the counterweight 361, the cotton swab 36 will return to the vertical state and contact the coolant in the reservoir 2.

[0033] For further details, please refer to Figures 4-5In this embodiment of the invention, the liquid storage tank 2 is filled with coolant, and the liquid level of the coolant is lower than that of the moving plate 25. When the cotton swab 36 is pulled up by the pull rope 26, the cotton swab 36 can be removed from the position of the coolant.

[0034] Example 4 differs from Example 1 in that: Please see Figure 6 In this embodiment of the invention, the internal heat dissipation mechanism 4 includes a heat-conducting rod 41 disposed at the center of the inside of the oil tank 1. A heat-conducting shell 42 is disposed outside the heat-conducting rod 41. The bottom of the heat-conducting shell 42 is connected to the bottom of the inner side of the oil tank 1 by a support rod 411. The heat-conducting shell 42 is filled with paraffin filler 43. Two symmetrical cavities 44 are disposed inside the heat-conducting rod 41. The inner sidewalls of the two cavities 44 are connected with shape memory alloy 45. The other end of the shape memory alloy 45 is connected to a piston block 46. One side of the piston block 46 is connected to a piston rod 47. The other end of the piston rod 47 is connected to a connecting plate 48. A plurality of movable rods 49 corresponding to each heat dissipation fin 33 are horizontally connected to one side of the connecting plate 48. The other end of the movable rod 49 slides laterally through the inner sidewall of the oil tank 1 and is hinged to a connecting rod 410. The other end of the connecting rod 410 is hinged to the bottom of the heat dissipation fin 33.

[0035] Please see Figure 6 In this embodiment of the invention, the shape memory alloy 45 undergoes a phase transition at both below 25 degrees and above 50 degrees. At above 50 degrees, the shape memory alloy 45 is in a horizontal straight line shape, and the heat dissipation fins 33 are in a horizontal state. At below 25 degrees, the shape memory alloy 45 is in a spiral shape, and the heat dissipation fins 33 are in a closed state.

[0036] It should be added that shape memory alloy 45 is made of nickel-titanium alloy. During phase transformation, nickel-titanium alloy has a large phase transformation force, which is sufficient to drive the opening of heat dissipation fins 33.

[0037] In this embodiment, during operation, the oil temperature in the oil tank 1 gradually increases, heating the paraffin filler 43 inside the heat-conducting shell 42, causing the paraffin filler 43 to melt and absorb heat, thus cooling the oil. After melting, it heats the heat-conducting rod 41, thereby heating the shape memory alloy 45 inside the cavity 44. When the shape memory alloy 45 is heated to above 50 degrees, the shape memory alloy 45 undergoes a phase change, and the shape memory alloy 45 gradually straightens from a spiral shape, thereby pushing the piston block 46 to slide in the cavity 44 on the heat-conducting rod 41. The piston block 46 causes the piston rod 47 to push the connecting plate 48 to move, and the connecting plate 48 pushes each moving rod 49 to move. The moving rod 49 causes the connecting rod 410 to drive the heat dissipation fins 33 to rotate, causing each heat dissipation fin 33 to open and contact the cotton cloth 37. After opening, the heat inside the oil tank 1 is conducted to the heat dissipation fins 33 and then dissipated, playing a secondary heat dissipation role. When the hydraulic pump station stops working, the temperature inside the oil tank 1 gradually decreases, causing the paraffin filler 43 to gradually solidify. The temperature of the shape memory alloy 45 also gradually decreases. When the temperature of the shape memory alloy 45 is below 25 degrees Celsius, the shape memory alloy 45 reaches the phase transition temperature again, and the shape memory alloy 45 returns to a spiral shape, thereby driving the piston block 46 to move back. This causes the connecting rod 410 at one end of the moving rod 49 to drive the heat dissipation fins 33 to rotate downwards, sealing the side of the heat dissipation fins 33 near the connecting rod 410. This can achieve a dustproof effect, preventing excessive dust on the heat dissipation fins 33 from affecting the heat dissipation quality.

[0038] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A water evaporation-type physical cooling hydraulic pump station, comprising an oil tank (1), characterized in that: The bottom of the oil tank (1) is provided with a liquid storage tank (2), and both sides of the oil tank (1) are provided with external heat dissipation mechanisms (3). The inside of the oil tank (1) is also provided with an internal heat dissipation mechanism (4). The external heat dissipation mechanism (3) includes a first hollow plate (31) and a second hollow plate (32) respectively disposed at the two edges of one side of the oil tank (1). A plurality of heat dissipation fins (33) are equidistantly rotatably disposed between the opposite sides of the first hollow plate (31) and the second hollow plate (32). One side of the heat dissipation fins (33) contacts the side of the oil tank (1). A conduit (34) communicating with the interior of the second hollow plate (32) is disposed at the bottom of the second hollow plate (32). The other end of the conduit (34) is connected to one side of the liquid storage tank (2). A sponge plate (35) is connected to the inner wall of the second hollow plate (32). A cotton swab is connected to the bottom of the sponge plate (35). 36), the cotton swab (36) passes through the conduit (34) and is located at the bottom of the liquid storage tank (2). The bottom of the first hollow plate (31) is provided with a return pipe (38) communicating with its interior. The other end of the return pipe (38) is located inside the liquid storage tank (2). A number of cotton cloths (37) corresponding to each heat dissipation fin (33) are equidistantly arranged on one side of the sponge plate (35). The cotton cloths (37) pass through the second hollow plate (32) and overlap on the heat dissipation fins (33) in a horizontal state. The external heat dissipation mechanism (3) also includes a capillary control mechanism (39) for squeezing the sponge plate (35) and controlling its capillary speed.

2. The water evaporation-type physical cooling hydraulic pump station according to claim 1, characterized in that: The liquid storage tank (2) has an upwardly inclined liquid accumulation plate (27) on one side inside. One end of the return pipe (38) is located above the liquid accumulation plate (27). There is a gap between the other side of the liquid accumulation plate (27) and the other side inside the liquid storage tank (2), so that the return coolant can accumulate on the liquid accumulation plate (27) until it falls from the gap.

3. The water evaporation-type physical cooling hydraulic pump station according to claim 1, characterized in that: The end of the cotton cloth (37) away from the second hollow plate (32) is located inside the first hollow plate (31), so that excess coolant can flow back into the storage tank (2), and when the heat dissipation fins (33) rotate to a horizontal state, the upper part of the heat dissipation fins (33) contacts the bottom of the cotton cloth (37).

4. The water evaporation-type physical cooling hydraulic pump station according to claim 1, characterized in that: The capillary control mechanism (39) includes an adjusting bolt (391) rotatably disposed on one side of the second hollow plate (32). A matching nut sleeve (392) is screwed onto the outside of the adjusting bolt (391). L-shaped rods (393) are connected to both the upper and lower sides of the nut sleeve (392). The other ends of the two L-shaped rods (393) slide laterally through one side of the second hollow plate (32) and are located inside it. A pressure plate (394) for squeezing the sponge plate (35) is connected between the other ends of the two L-shaped rods (393).

5. The water evaporation-type physical cooling hydraulic pump station according to claim 1, characterized in that: The liquid storage tank (2) has two screws (21) rotatably mounted inside. A drive motor (22) for driving one of the screws (21) is installed on one side of the liquid storage tank (2). Two transmission wheels (23) are rotatably mounted on the other side of the liquid storage tank (2). The two transmission wheels (23) are connected by a belt (24). One end of the two transmission wheels (23) is connected to one end of the two screws (21). A movable plate (25) is screwed between the two screws (21) by threads. Pull ropes (26) are connected to the bottom of both ends of the movable plate (25). A counterweight (361) is connected to the lower end of the cotton swab (36). The other end of the pull rope (26) is connected to the counterweight (361).

6. The water evaporation-type physical cooling hydraulic pump station according to claim 5, characterized in that: The liquid storage tank (2) is filled with coolant, and the level of the coolant is lower than that of the moving plate (25).

7. The water evaporation-type physical cooling hydraulic pump station according to claim 1, characterized in that: The internal heat dissipation mechanism (4) includes a heat-conducting rod (41) disposed at the center of the oil tank (1). A heat-conducting shell (42) is disposed outside the heat-conducting rod (41). The bottom of the heat-conducting shell (42) is connected to the bottom of the inner side of the oil tank (1) by a support rod (411). The heat-conducting shell (42) is filled with paraffin filler (43). Two symmetrical cavities (44) are disposed inside the heat-conducting rod (41). The inner walls of the two cavities (44) are connected with shape memory alloy (45). The other end of the memory alloy (45) is connected to a piston block (46), one side of the piston block (46) is connected to a piston rod (47), the other end of the piston rod (47) is connected to a connecting plate (48), one side of the connecting plate (48) is horizontally connected to several moving rods (49) corresponding to each heat dissipation fin (33), the other end of the moving rod (49) slides laterally through the inner wall of the oil tank (1) and is hinged to a connecting rod (410), the other end of the connecting rod (410) is hinged to the bottom of the heat dissipation fin (33).

8. A water evaporation-type physical cooling hydraulic pump station according to claim 7, characterized in that: The shape memory alloy (45) undergoes a phase transition at temperatures below 25 degrees Celsius and above 50 degrees Celsius. At temperatures above 50 degrees Celsius, the shape memory alloy (45) is in a horizontal straight line shape, and the heat dissipation fins (33) are in a horizontal state. At temperatures below 25 degrees Celsius, the shape memory alloy (45) is in a spiral shape, and the heat dissipation fins (33) are in a closed state.

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