An air-to-air cooler for photovoltaic power plants

Abstract

This invention relates to the field of cooler technology and discloses an air-to-air cooler for photovoltaic power plants. The cooler includes a housing, with a heat exchanger fixedly connected inside. An internal circulation air duct is located at the bottom of the heat exchanger, and an external circulation air duct is located inside the housing. Four rotating components are arranged inside the housing, with an adjustment component on one side of two of the rotating components, a moving component on one side of each adjustment component, and a cooling component on one side of each moving component. All the adjustment, moving, and cooling components are located inside the housing. When the external temperature rises, the telescopic air pipe can drive a lifting block to rise. Subsequently, through the cooperation of the adjustment and moving components, it can drive the flow of coolant inside the water pipe. Simultaneously, the flow rate of the coolant can change according to the external environment, thereby initially cooling the internal circulation air inlet and improving the cooling effect of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of coolers, and particularly to an air-to-air cooler for a photovoltaic power station. Background Art

[0002] With the continuous increase in the proportion of new energy sources such as wind power and photovoltaic power in the power system, the characteristics of intermittency, randomness, and volatility of new energy have put forward higher requirements for maintaining the stable operation of the power grid. Distributed coolers applied to the new energy power supply side have emerged as the times require;

[0003] This cooler is a heat dissipation device supporting the "fast dynamic reactive power compensation device - synchronous condenser". The synchronous condenser itself is a no-load running synchronous motor that specifically provides inductive reactive power or absorbs capacitive reactive power to the power system to maintain the stable operation of the power grid voltage. When the grid voltage drops, it can increase the reactive power output, and when the grid voltage rises, it can absorb reactive power. Through "two-way adjustment", it can effectively maintain the stable operation of the grid voltage and ensure the normal operation of the power grid and electrical equipment. Therefore, the air-to-air cooler for a photovoltaic power station is called the "safety guard" of the power grid;

[0004] However, in actual application, the heat dissipation of the air-to-air cooler cannot adjust the heat dissipation intensity according to the external environmental temperature. When the external temperature is relatively low, it still operates at a fixed power, resulting in energy waste. When the external temperature suddenly rises, it is difficult to synchronously improve the heat dissipation efficiency, leading to the accumulation of heat inside the equipment, affecting the cooling effect, and the noise control effect is not good. The noise generated by the airflow friction against the outer shell and the vibration conduction of the plates during the operation of the cooler is relatively large, which is likely to interfere with the surrounding environment and the staff. Summary of the Invention

[0005] The purpose of the present invention is to provide an air-to-air cooler for a photovoltaic power station, and solve the following technical problems: the heat dissipation cannot adjust the heat dissipation intensity according to the external environmental temperature, the noise control effect is not good, and it is easy to interfere with the surrounding environment and the staff.

[0006] The purpose of the present invention can be achieved by the following technical solutions: an air-to-air cooler for a photovoltaic power station, including an outer shell, an internal heat exchanger is fixedly connected inside the outer shell, an internal circulation air path is arranged at the bottom of the heat exchanger, an external circulation air path is arranged inside the outer shell, four rotating components are arranged inside the outer shell, adjusting components are arranged on one side of two of the rotating components, a moving component is arranged on one side of the adjusting component, a cooling component is arranged on one side of the moving component, and the adjusting component, the moving component, and the cooling component are all arranged inside the outer shell;

[0007] The rotating component is used to draw in cold outside air and remove the heat generated by the device. The regulating component is used to drive the moving component to operate, and the moving component can drive the cooling component to cool the air in the internal circulation.

[0008] As a preferred embodiment of the present invention: the rotating assembly includes a motor and rotating blades. The motor is fixedly connected to one side of the housing. The drive end of the motor is fixedly connected to a drive shaft. The outer wall of the drive shaft is rotatably connected to the inside of the housing. The drive shaft can drive the rotating blades to rotate by rotating, thereby driving the air in the external circulation air path to flow.

[0009] The cooling assembly includes a cooling tank and a water pipe. The cooling tank is fixedly connected inside the outer shell. One end of the water pipe is fixedly connected to one side of the cooling tank, and the other end of the water pipe is fixedly connected to the top of the cooling tank. A drive pump is provided on the outer wall of the water pipe. Two springs are fixedly connected inside the drive pump. A baffle is fixedly connected to the bottom end of the spring. The side of the baffle away from the spring abuts against the inside of the water pipe.

[0010] The adjustment assembly includes a telescopic air tube fixedly connected inside the housing. A lifting block is fixedly connected to the top of the telescopic air tube. A hinge is provided on one side of the lifting block. A moving block is provided on the side of the hinge away from the lifting block. A moving plate is fixedly connected to the side of the moving block away from the hinge. A rotating shaft is rotatably connected to the side of the moving plate away from the moving block. A driven helical gear is fixedly connected to the outer wall of the rotating shaft. A driven helical gear is fixedly connected to the outer wall of the rotating shaft. An active helical gear set is fixedly connected to the outer wall of the drive shaft. The active helical gear set meshes with the driven helical gear second and the active helical gear set meshes with the driven helical gear first.

[0011] The moving component includes a pulley rotatably connected inside the housing. The pulley is slidably connected to the outer wall of the rotating shaft. A belt is provided on the outer wall of the pulley. An eccentric wheel is provided inside the belt on the side away from the pulley. The eccentric wheel is rotatably connected inside the housing. An eccentric shaft is fixedly connected to one side of the eccentric wheel. A second moving plate is slidably connected to the outer wall of the eccentric shaft. A moving rod is fixedly connected to one side of the second moving plate. A piston is fixedly connected to the end of the moving rod away from the second moving plate. The outer wall of the piston is slidably connected to the inside of the drive pump. The outer wall of the moving rod is slidably connected to the inside of the drive pump.

[0012] As a preferred embodiment of the present invention: the internal circulation air path includes two internal circulation air inlets, the top of the internal circulation air inlets is fixedly connected to one side of the bottom of the heat exchanger, and the bottom of the heat exchanger is also fixedly connected to two internal circulation air outlets.

[0013] As a preferred embodiment of the present invention: the external circulation air path includes an external circulation air inlet opened inside the outer casing, and four external circulation air outlets are provided on the side of the outer casing away from the external circulation air inlet, and the rotating blades are rotatably connected inside the external circulation air outlets.

[0014] As a preferred embodiment of the present invention: a ladder is fixedly connected to the top side of the outer shell, and a plurality of evenly distributed support pads are fixedly connected to the bottom of the outer shell.

[0015] As a preferred embodiment of the present invention: the rotating assembly further includes a fixing plate, which is fixedly connected inside the housing. One side of the fixing plate is fixedly connected to one side of the rotating blade. A passive bevel gear is fixedly connected to the side of the rotating blade away from the fixing plate. An active bevel gear is fixedly connected to the end of the drive shaft away from the motor. The active bevel gear meshes with the passive bevel gear.

[0016] As a preferred embodiment of the present invention: the water pipe is sleeved on the outer wall of the internal circulation air inlet, and a fixing plate two is rotatably connected to one side of the baffle, and one side of the fixing plate two is fixedly connected to the inside of the drive pump.

[0017] As a preferred embodiment of the present invention: the top of one side of the hinge is rotatably connected to the inside of the outer shell, the top of the other side of the hinge is rotatably connected to one side of the moving block, the bottom of one side of the hinge is rotatably connected to one side of the lifting block, and a sliding plate is rotatably connected to the bottom of the other side of the hinge. Sliders are fixedly connected to both sides of the sliding plate. Two sliding grooves are opened inside the moving block. The outer wall of the slider is slidably connected to the inner sliding groove of the moving block. The outer wall of the moving block is slidably connected to the inside of the outer shell. The outer wall of the moving plate is slidably connected to the inside of the outer shell.

[0018] As a preferred embodiment of the present invention: sliding rods are slidably connected to both sides of the inner side of the movable plate two, the sliding rods are fixedly connected to the inside of the outer shell, a stabilizing block is slidably connected to the outer wall of the rotating shaft, and the outer wall of the stabilizing block is slidably connected to the inside of the pulley.

[0019] The beneficial effects of this invention are:

[0020] (1) The present invention uses a telescopic air pipe to drive the lifting block to rise when the external temperature rises. Then, through the cooperation of the adjustment component and the moving component, the coolant inside the water pipe can be driven to flow. At the same time, the flow speed of the coolant can be changed according to the external environment, thereby initially cooling the internal circulation air inlet and improving the cooling effect of the device. Through the reasonable layout of the internal and external circulation air paths and the external circulation air path, it is ensured that the hot air flows through the heat exchanger. The external circulation air path drives the airflow to flow efficiently with the help of the rotating component, which accelerates the heat exchange. In addition, the piston-type coolant circulation mechanism driven by the moving component can flexibly adjust the coolant flow rate according to the heat dissipation requirements, further improving the heat exchange efficiency. It can stably meet the heat dissipation requirements of the photovoltaic power station during high load operation and ensure the stable operation of the synchronous condenser and the power grid.

[0021] (2) When the lifting block of the present invention rises, it drives the moving block to move through the hinge. The moving block drives the moving plate to move, and the moving plate drives the rotating shaft to move, so that the passive helical gear 2 meshes with the active helical gear set. At this time, the drive shaft rotates and drives the rotating shaft to rotate. When the external temperature continues to rise, the rotating shaft continues to move through the above structure. After a certain degree, the passive helical gear 2 is disengaged from the active helical gear set, so that the passive helical gear 1 meshes with the active helical gear set, thereby increasing the rotation speed of the rotating shaft. The rotation of the rotating shaft drives the coolant in the water pipe to flow through the moving component. The flow of the water pipe is adjusted according to the external environment to improve the cooling efficiency. When the external temperature is low, the coolant stops flowing to reduce energy waste.

[0022] (3) In this invention, the rotating shaft rotates, the pulley rotates accordingly, and then drives the belt to rotate. When the belt rotates, it drives the eccentric wheel to rotate. The rotation of the eccentric wheel drives the eccentric shaft to rotate. During the rotation of the eccentric shaft, it pushes the second moving plate to move. The movement of the second moving plate then drives the moving rod to move. The movement of the moving rod finally drives the piston to reciprocate. The repeated movement of the piston causes the coolant inside the water pipe to circulate. Attached Figure Description

[0023] The invention will now be further described with reference to the accompanying drawings.

[0024] Figure 1 This is a perspective view of the present invention;

[0025] Figure 2 This is a schematic diagram of the outer casing in this invention;

[0026] Figure 3 This is a schematic diagram of the heat exchanger in this invention;

[0027] Figure 4 This is a schematic diagram of the rotating component in this invention;

[0028] Figure 5 For the present invention Figure 4 Enlarged view of point A in the middle;

[0029] Figure 6 This is a schematic diagram of the internal circulation air inlet and the internal circulation air outlet in this invention;

[0030] Figure 7 This is a schematic diagram of the cooling component in this invention;

[0031] Figure 8 This is a schematic diagram of the drive shaft in this invention;

[0032] Figure 9 This is a schematic diagram of the adjustment component in this invention;

[0033] Figure 10 This is a schematic diagram of the movable block in this invention;

[0034] Figure 11 This is a schematic diagram of the pulley and stabilizing block in this invention;

[0035] Figure 12 This is a schematic diagram of the moving component in this invention;

[0036] Figure 13 This is a schematic diagram of the piston and drive pump in this invention;

[0037] Figure 14 This is a schematic diagram of the spring and baffle in this invention.

[0038] Figure Descriptions: 1. Outer shell; 2. Rotating assembly; 3. Cooling assembly; 4. Adjustment assembly; 5. Moving assembly; 11. Heat exchanger; 12. Internal circulation air inlet; 13. Internal circulation air outlet; 14. External circulation air inlet; 15. External circulation air outlet; 16. Ladder; 17. Support pad; 21. Motor; 22. Drive shaft; 23. Driving bevel gear; 24. Driven bevel gear; 25. Rotating blade; 26. Fixed plate one; 31. Cooling box; 32. Water pipe; 33. Drive pump; 34. Spring; 35. Baffle; 36. Fixed plate two; 41. Telescopic air pipe; 42. Lifting block; 43. Hinge; 44. Moving block; 45. Moving plate one; 46. Rotating shaft; 47. Passive helical gear one; 48. Passive helical gear two; 49. Active helical gear set; 410. Slide plate; 411. Slider; 51. Leather wheel; 52. Belt; 53. Eccentric wheel; 54. Eccentric shaft; 55. Moving plate two; 56. Moving rod; 57. Piston; 58. Slide rod; 59. Stabilizing block. Detailed Implementation

[0039] 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.

[0040] Please see Figure 1 - Figure 14 As shown, the present invention is an air-cooled device for a photovoltaic power station, including a shell 1. A heat exchanger 11 is fixedly connected inside the shell 1. An internal circulation air passage is provided at the bottom of the heat exchanger 11. An external circulation air passage is provided inside the shell 1. Four rotating components 2 are provided inside the shell 1. An adjustment component 4 is provided on one side of two rotating components 2. A moving component 5 is provided on one side of the adjustment component 4. A cooling component 3 is provided on one side of the moving component 5. The adjustment component 4, the moving component 5 and the cooling component 3 are all located inside the shell 1.

[0041] The heat exchanger 11 uses 0.15-0.2mm epoxy aluminum foil heat dissipation fins. The interior of the outer shell 1 is treated with special sound-absorbing materials, and the overall noise level is less than 85dB(A). The special material is glass fiber cotton (high temperature resistant, one of the most commonly used "special materials"). Key parameters: made of alkali-free glass fiber, fiber diameter 3-6μm, density 24-48kg / m³, operating temperature -120~400℃ (meets the requirements of medium and high temperature heat exchangers), noise reduction 15-30dB(A). The special advantages of glass fiber cotton are: porosity of over 90%, which has a significant adsorption effect on airflow noise (noise transmitted by airflow friction between the outer shell and plate vibration) during the operation of heat exchanger 11; strong chemical stability, does not react with epoxy aluminum foil or outer shell metal, and does not age or pulverize after long-term use; flame retardant rating reaches GB8624A level, which meets industrial safety requirements.

[0042] Rotating component 2 is used to draw in cold outside air and remove the heat generated by the device. Adjusting component 4 is used to drive moving component 5 to operate. Moving component 5 can drive cooling component 3 to cool the internal circulating air.

[0043] The air cooler consists of an internal circulation air path and an external circulation air path. Hot air and cold air exchange energy through the heat-conducting plate of the heat exchanger 11. The internal and external circulation fans are controlled by the rotating component 2. The internal circulation air path of the cooler draws in hot air from the air inlet opened on the bottom frame of the outer shell 1 and into the heat exchanger 11. The hot air is blown into the heat exchanger 11 by the fan on the generator shaft and then dissipated through the heat exchanger 11. The cooled air enters the nacelle from the bottom. The external circulation air path draws in cold air from the outside. After heat exchange, the heated air is discharged from the cooling system from one side of the outer shell 1. The heat generated by the motor is carried away by the circulation flow. The cooled internal air circulates back into the cooler and carries away the internal heat to maintain the thermal balance in the nacelle. This cycle continues.

[0044] The rotating component 2 includes a motor 21 and a rotating blade 25. The motor 21 is fixedly connected to one side of the housing 1. The drive end of the motor 21 is fixedly connected to a drive shaft 22. The outer wall of the drive shaft 22 is rotatably connected to the inside of the housing 1. The drive shaft 22 can drive the rotating blade 25 to rotate by rotating, thereby driving the air in the external circulation air path to flow.

[0045] Motor 21 is a variable frequency motor with an energy efficiency rating of 2 (IE4). Starting motor 21 can drive drive shaft 22 to rotate. The rotation of drive shaft 22 can drive rotating blade 25 to rotate through rotating assembly 2. The rotation of rotating blade 25 can drive the air in the external circulation air path to flow, thereby completing heat exchange.

[0046] The cooling assembly 3 includes a cooling box 31 and a water pipe 32. The cooling box 31 is fixedly connected inside the outer shell 1. One end of the water pipe 32 is fixedly connected to one side of the cooling box 31, and the other end of the water pipe 32 is fixedly connected to the top of the cooling box 31. A drive pump 33 is provided on the outer wall of the water pipe 32. Two springs 34 are fixedly connected inside the drive pump 33. A baffle 35 is fixedly connected to the bottom end of the springs 34. The side of the baffle 35 away from the springs 34 abuts against the inside of the water pipe 32.

[0047] Cooling tank 31 is used to store coolant, water pipe 32 is used to fix the flow path of coolant, drive pump 33 is used to drive coolant to flow inside water pipe 32, spring 34 is used to fix baffle 35, and spring 34 and baffle 35 cooperate to play the role of preventing coolant backflow.

[0048] The adjustment assembly 4 includes a telescopic air pipe 41, which is fixedly connected inside the outer casing 1. A lifting block 42 is fixedly connected to the top of the telescopic air pipe 41. A hinge 43 is provided on one side of the lifting block 42. A moving block 44 is provided on the side of the hinge 43 away from the lifting block 42. A moving plate 45 is fixedly connected to the side of the moving block 44 away from the hinge 43. A rotating shaft 46 is rotatably connected to the side of the moving plate 45 away from the moving block 44. A passive helical gear 47 is fixedly connected to the outer wall of the rotating shaft 46. A passive helical gear 48 is fixedly connected to the outer wall of the rotating shaft 46. An active helical gear set 49 is fixedly connected to the outer wall of the drive shaft 22. The active helical gear set 49 meshes with the passive helical gear 48, and the active helical gear set 49 meshes with the passive helical gear 47.

[0049] The telescopic air tube 41 is filled with natural latex (rubber), with its bottom exposed to the air. Natural latex has excellent elasticity (able to withstand 10%-20% volume expansion), strong sealing (natural rubber material has no obvious pores, air leakage is extremely slow), and high stability (it will not soften or deform, nor will it become brittle or crack). When the external temperature rises, it can cause the telescopic air tube 41 to expand, thereby causing the lifting block 42 to rise. After the lifting block 42 rises, it can drive the moving block 44 to move through the hinge 43. The moving block 44, in turn, can drive the moving plate 45 to move. The moving plate 45, in turn, can drive the rotating shaft 46 to move. The rotating shaft 46, in turn, can cause the passive helical gear 48 to mesh with the active helical gear set 49. When the passive helical gear 48 meshes with the active helical gear set 49, the drive shaft 2... 2. Rotation can drive the rotating shaft 46 to rotate. When the external temperature continues to rise, the expansion of the telescopic air pipe 41 due to heat will drive the lifting block 42 to rise. Then, through the cooperation of the hinge 43, the moving block 44 will move, which in turn will drive the moving plate 45 to move, thereby driving the rotating shaft 46 to move. When the rotating shaft 46 moves to a certain extent, it can disengage the passive helical gear 48 from the active helical gear set 49, and make the passive helical gear 47 mesh with the active helical gear set 49. After the passive helical gear 47 meshes with the active helical gear set 49, the rotation speed of the rotating shaft 46 can be increased. The rotation of the rotating shaft 46, through the cooperation of the moving component 5, can drive the coolant inside the water pipe 32 to flow. The flow of the water pipe 32 can be adjusted according to the external environment, thereby improving the cooling efficiency. When the external temperature is low, the coolant stops flowing, which can reduce energy waste.

[0050] The moving component 5 includes a pulley 51, which is rotatably connected to the inside of the housing 1. The inside of the pulley 51 is slidably connected to the outer wall of the rotating shaft 46. A belt 52 is provided on the outer wall of the pulley 51. An eccentric wheel 53 is provided on the side of the belt 52 away from the pulley 51. The eccentric wheel 53 is rotatably connected to the inside of the housing 1. An eccentric shaft 54 ​​is fixedly connected to one side of the eccentric wheel 53. A moving plate 55 is slidably connected to the outer wall of the eccentric shaft 54. A moving rod 56 is fixedly connected to one side of the moving plate 55. A piston 57 is fixedly connected to the end of the moving rod 56 away from the moving plate 55. The outer wall of the piston 57 is slidably connected to the inside of the drive pump 33. The outer wall of the moving rod 56 is slidably connected to the inside of the drive pump 33.

[0051] The rotating shaft 46 can drive the pulley 51 to rotate, the pulley 51 can drive the belt 52 to rotate, the belt 52 can drive the eccentric wheel 53 to rotate, the eccentric wheel 53 can drive the eccentric shaft 54 ​​to rotate, the eccentric shaft 54 ​​can drive the moving plate 2 55 to move, the moving plate 2 55 can drive the moving rod 56 to move, the moving rod 56 can drive the piston 57 to move, and the piston 57 can make the coolant inside the water pipe 32 flow by repeated movement.

[0052] The internal circulation air path includes two internal circulation air inlets 12. The top of the internal circulation air inlets 12 is fixedly connected to one side of the bottom of the heat exchanger 11. The bottom of the heat exchanger 11 is also fixedly connected to two internal circulation air outlets 13. The external circulation air path includes an external circulation air inlet 14 opened inside the outer shell 1. Four external circulation air outlets 15 are provided on the side of the outer shell 1 away from the external circulation air inlet 14. The rotating blades 25 are rotatably connected to the inside of the external circulation air outlets 15. A ladder 16 is fixedly connected to one side of the top of the outer shell 1. Multiple evenly distributed support pads 17 are fixedly connected to the bottom of the outer shell 1.

[0053] The internal circulation air inlet 12 is the air inlet of the internal circulation air path, used to transport hot air to the heat exchanger 11 for heat dissipation. The internal circulation air outlet 13 is the air outlet of the internal circulation air path, used to transport cold air from the heat exchanger 11 to the inside of the device. The external circulation air inlet 14 is equipped with a 1-inch, 18-mesh stainless steel filter screen with a resistance of <100Pa to prevent large foreign objects from being sucked into the device. The external circulation air inlet 14 is the air inlet of the external circulation air path, used to transport outside air to the heat exchanger 11 to complete heat exchange. The external circulation air outlet 15 is the air outlet of the external circulation air path, used to exhaust hot air from the inside of the outer casing 1. The ladder 16 facilitates maintenance. The support pad 17 is used to support the outer casing 1.

[0054] The rotating assembly 2 also includes a fixed plate 26, which is fixedly connected to the inside of the housing 1. One side of the fixed plate 26 is fixedly connected to one side of the rotating blade 25. A passive bevel gear 24 is fixedly connected to the side of the rotating blade 25 away from the fixed plate 26. An active bevel gear 23 is fixedly connected to the end of the drive shaft 22 away from the motor 21. The active bevel gear 23 meshes with the passive bevel gear 24.

[0055] The fixing plate 26 is used to fix the rotating blade 25. The drive shaft 22 can drive the active bevel gear 23 to rotate by rotating. The active bevel gear 23 can drive the passive bevel gear 24 to rotate by rotating. The passive bevel gear 24 can drive the rotating blade 25 to rotate by rotating.

[0056] Water pipe 32 is fitted on the outer wall of internal circulation air inlet 12. A fixing plate 36 is rotatably connected to one side of baffle 35. One side of fixing plate 36 is fixedly connected to the inside of drive pump 33. Fixing plate 36 is used to fix baffle 35.

[0057] The top of one side of hinge 43 is rotatably connected to the inside of housing 1, the top of the other side of hinge 43 is rotatably connected to one side of moving block 44, the bottom of one side of hinge 43 is rotatably connected to one side of lifting block 42, and the bottom of the other side of hinge 43 is rotatably connected to slide plate 410. Slider 411 is fixedly connected to both sides of slide plate 410. Two sliding grooves are opened inside moving block 44. The outer wall of slider 411 is slidably connected to the inner sliding groove of moving block 44. The outer wall of moving block 44 is slidably connected to the inside of housing 1. The outer wall of moving plate 45 is slidably connected to the inside of housing 1.

[0058] Both sides of the inner side of the movable plate 55 are slidably connected to slide rods 58, which are fixedly connected to the inside of the outer shell 1. The outer wall of the rotating shaft 46 is slidably connected to a stabilizing block 59, which is slidably connected to the inside of the pulley 51. The slide rods 58 are used to fix the moving path of the movable plate 55, and the stabilizing block 59 plays the role of strengthening the connection between the rotating shaft 46 and the pulley 51. This not only allows the pulley 51 to slide on the outer wall of the rotating shaft 46, but also drives the pulley 51 to rotate when the rotating shaft 46 rotates.

[0059] The working principle of this invention is as follows: First, the motor 21 drives the drive shaft 22 to rotate. A driving bevel gear 23 is fixed to the end of the drive shaft 22 furthest from the motor 21. The driving bevel gear 23 meshes with a driven bevel gear 24 on one side of the rotating blade 25. Simultaneously, the rotating blade 25 is fixed inside the outer casing 1 by a fixing plate 26. Therefore, the rotation of the drive shaft 22 drives the rotating blade 25 to rotate, thereby driving the external circulation airflow. Outside cold air enters the outer casing 1 through the external circulation air inlet 14, flows through the heat exchanger 11, absorbs the heat transferred by the heat exchanger 11, and becomes hot air. Finally, it is discharged through the four external circulation air outlets 15 on the other side of the outer casing 1, completing the external circulation heat dissipation. The internal circulation air path operates synchronously. Hot air enters the heat exchanger 11 through two internal circulation air inlets 12 on one side of the bottom of the heat exchanger 11. Under the action of the fan on the generator shaft, it fully contacts the heat exchanger 11. After the heat is transferred to the heat exchanger 11, the cooled air is discharged from the two internal circulation air outlets 13 at the bottom of the heat exchanger 11 and returns to the engine room to maintain the thermal balance of the engine room.

[0060] When the external temperature changes, the telescopic air tube 41 expands as the temperature rises, causing the lifting block 42 at the top to rise. The lifting block 42 pushes the moving block 44 to slide inside the outer shell 1 through the hinge 43. The sliders 411 on both sides of the slide plate 410 slide along the internal groove of the moving block 44 to ensure stable movement. The moving block 44 drives the moving plate 45 on one side to slide. The moving plate 45 drives the rotating shaft 46 to move, so that the passive helical gear 48 or the passive helical gear 47 on the rotating shaft 46 meshes with the active helical gear set 49 on the outer wall of the drive shaft 22 (the passive helical gear 48 meshes when the temperature is low, and the passive helical gear 47 meshes when the temperature rises to increase the rotation speed of the rotating shaft 46). When the shaft 46 rotates, the pulley 51, which is slidably connected to its outer wall, rotates synchronously with the shaft 46. The pulley 51 drives the eccentric wheel 53 to rotate inside the outer casing 1 via the belt 52. The eccentric shaft 54 ​​on one side of the eccentric wheel 53 rotates accordingly, pushing the movable plate 55, which is slidably connected to the outer wall, to move back and forth. The movable plate 55 drives the movable rod 56 on one side to move. The movable rod 56 pushes the piston 57 at one end to slide back and forth inside the drive pump 33. When the piston 57 slides back and forth, it drives the coolant in the cooling assembly 3 to flow. The coolant in the cooling tank 31 enters the drive pump 33 through the water pipe 32. The spring 34 inside the drive pump 33 cooperates with the baffle 35 to achieve a check valve, preventing the coolant from flowing back. Finally, the coolant flows back to the cooling tank 31 along the water pipe 32, forming a circulation, further cooling the air in the internal circulation air path and improving heat dissipation efficiency.

[0061] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. An air-to-air cooler for photovoltaic power plants, comprising a casing (1), characterized in that, The inside of the shell (1) is fixedly connected with a heat exchanger (11), the bottom of the heat exchanger (11) is provided with an internal circulation air duct, the inside of the shell (1) is provided with an external circulation air duct, the inside of the shell (1) is provided with four rotating assemblies (2), one side of two of the rotating assemblies (2) is provided with an adjusting assembly (4), one side of the adjusting assembly (4) is provided with a moving assembly (5), one side of the moving assembly (5) is provided with a cooling assembly (3), and the adjusting assembly (4), the moving assembly (5) and the cooling assembly (3) are all arranged in the inside of the shell (1); The rotating assembly (2) is used for sucking external cold air and taking away the heat generated by the device, the adjusting assembly (4) is used for driving the moving assembly (5) to operate, and the moving assembly (5) can drive the cooling assembly (3) to operate to cool the internal circulation air; The rotating assembly (2) comprises a motor (21) and rotating blades (25), one side of the motor (21) is fixedly connected with the shell (1), the driving end of the motor (21) is fixedly connected with a driving shaft (22), the outer wall of the driving shaft (22) is rotatably connected in the inside of the shell (1), and the driving shaft (22) can drive the rotating blades (25) to rotate through rotation, so that the air in the external circulation air duct flows. The cooling assembly (3) comprises a cooling box (31) and a water pipe (32), the cooling box (31) is fixedly connected in the inside of the shell (1), one end of the water pipe (32) is fixedly connected to one side of the cooling box (31), the other end of the water pipe (32) is fixedly connected to the top of the cooling box (31), the outer wall of the water pipe (32) is provided with a driving pump (33), the inside of the driving pump (33) is fixedly connected with two springs (34), the bottom end of the spring (34) is fixedly connected with a baffle (35), and one side, away from the spring (34), of the baffle (35) abuts against the inside of the water pipe (32); The adjusting assembly (4) comprises a telescopic air pipe (41), the telescopic air pipe (41) is fixedly connected in the inside of the shell (1), the top of the telescopic air pipe (41) is fixedly connected with a lifting block (42), one side of the lifting block (42) is provided with a hinge (43), one side, away from the lifting block (42), of the hinge (43) is provided with a moving block (44), one side, away from the hinge (43), of the moving block (44) is fixedly connected with a moving plate one (45), one side, away from the moving block (44), of the moving plate one (45) is rotatably connected with a rotating shaft (46), the outer wall of the rotating shaft (46) is fixedly connected with a driven bevel gear one (47), the outer wall of the rotating shaft (46) is fixedly connected with a driven bevel gear two (48), the outer wall of the driving shaft (22) is fixedly connected with a driving bevel gear set (49), the driving bevel gear set (49) is engaged with the driven bevel gear two (48), and the driving bevel gear set (49) is engaged with the driven bevel gear one (47). The moving assembly (5) comprises a friction wheel (51), which is rotationally connected in the inside of the shell (1), the inside of the friction wheel (51) is slidably connected to the outer wall of the rotating shaft (46), the outer wall of the friction wheel (51) is provided with a belt (52), the inside of the side away from the friction wheel (51) of the belt (52) is provided with an eccentric wheel (53), the eccentric wheel (53) is rotationally connected in the inside of the shell (1), one side of the eccentric wheel (53) is fixedly connected with an eccentric shaft (54), the outer wall of the eccentric shaft (54) is slidably connected with a moving plate two (55), one side of the moving plate two (55) is fixedly connected with a moving rod (56), one end of the moving rod (56) away from the moving plate two (55) is fixedly connected with a piston (57), the outer wall of the piston (57) is slidably connected in the inside of the drive pump (33), the outer wall of the moving rod (56) is slidably connected in the inside of the drive pump (33).

2. The air-to-air cooler for a photovoltaic power station according to claim 1, characterized in that, The inner circulation air path comprises two inner circulation air inlets (12), the top of the inner circulation air inlet (12) is fixedly connected to one side of the bottom of the heat exchanger (11), and the bottom of the heat exchanger (11) is also fixedly connected with two inner circulation air outlets (13).

3. The air-to-air cooler for a photovoltaic power station according to claim 1, characterized in that, The outer circulation air path comprises an outer circulation air inlet (14) formed in the inside of the shell (1), four outer circulation air outlets (15) are arranged on the side away from the outer circulation air inlet (14) of the shell (1), and the rotating blade (25) is rotationally connected in the inside of the outer circulation air outlet (15).

4. The air-to-air cooler of claim 1, wherein, The top side of the shell (1) is fixedly connected with an escalator (16), and the bottom of the shell (1) is fixedly connected with a plurality of uniformly distributed supporting pads (17).

5. The air-to-air cooler of claim 1, wherein, The rotating assembly (2) further comprises a fixed plate one (26), which is fixedly connected in the inside of the shell (1), one side of the fixed plate one (26) is fixedly connected to one side of the rotating blade (25), one side of the rotating blade (25) away from the fixed plate one (26) is fixedly connected with a driven bevel gear (24), one end of the driving shaft (22) away from the motor (21) is fixedly connected with a driving bevel gear (23), and the driving bevel gear (23) is engaged with the driven bevel gear (24).

6. The air-to-air cooler of claim 2, wherein, The water pipe (32) is sleeved on the outer wall of the inner circulation air inlet (12), one side of the baffle (35) is rotationally connected with a fixed plate two (36), and one side of the fixed plate two (36) is fixedly connected in the inside of the drive pump (33).

7. The air-to-air cooler of claim 1, wherein, One side top of the hinge (43) is rotatably connected to the inside of the shell (1), the other side top of the hinge (43) is rotatably connected to one side of the moving block (44), one side bottom of the hinge (43) is rotatably connected to one side of the lifting block (42), the other side bottom of the hinge (43) is rotatably connected with the sliding plate (410), both sides of the sliding plate (410) are fixedly connected with the sliding block (411), the inside of the moving block (44) is provided with two sliding grooves, the outer wall of the sliding block (411) is slidably connected in the inside sliding groove of the moving block (44), the outer wall of the moving block (44) is slidably connected to the inside of the shell (1), and the outer wall of the moving plate (45) is slidably connected to the inside of the shell (1).

8. The air-to-air cooler of claim 1, wherein, The inside of the moving plate two (55) is slidably connected with the slide rod (58) on both sides, the slide rod (58) is fixedly connected to the inside of the shell (1), the outer wall of the rotating shaft (46) is slidably connected with the stabilizing block (59), and the outer wall of the stabilizing block (59) is slidably connected to the inside of the rubber wheel (51).

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