Gear box oil cooling heat dissipation device for wind driven generator

Abstract

The utility model discloses a gearbox oil cooling heat dissipation device for a wind driven generator, which relates to the technical field of wind power generation equipment and comprises an assembly bracket, a first heat dissipation mechanism is arranged at the upper end of the assembly bracket, a second heat dissipation mechanism is arranged at the upper end of the assembly bracket, and an air cooling mechanism is arranged below the first heat dissipation mechanism. The first heat dissipation mechanism comprises a heat dissipation block, a heat dissipation pipe is wound around the upper end of the heat dissipation block, pump bodies are installed at two ports of the heat dissipation pipe, and connecting pipes are fixedly installed at the other ends of the two pump bodies. Hot oil in the gear box flows in the heat dissipation pipe after being pumped out through one set of pump bodies, heat is transmitted to the heat dissipation block, cooling liquid in the heat dissipation block can absorb the heat, meanwhile, the two sets of fans on the assembly supporting frame conduct air cooling on the heat dissipation block and the heat dissipation pipe, the double heat dissipation mode that oil cooling and air cooling are combined is achieved, and the heat dissipation efficiency is improved. The heat dissipation efficiency is greatly improved, and the oil temperature in the gearbox can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation equipment technology, and in particular to an oil-cooled heat dissipation device for a gearbox of a wind turbine generator. Background Technology

[0002] Against the backdrop of the global energy structure accelerating its transition to clean energy, wind power has become an important pillar of the new energy sector due to its clean and renewable advantages. During the operation of a wind turbine, the gearbox, as the core transmission component connecting the wind turbine and the generator, undertakes the crucial task of converting the low-speed rotation of the wind turbine into the high-speed rotation of the generator. Its operational stability and reliability directly affect the overall performance of the wind power generation system.

[0003] However, in existing technologies, the common heat dissipation methods for wind turbine gearboxes are mainly divided into two categories: air cooling and simple oil cooling circulation systems. Air cooling mainly relies on natural ambient wind or a wind turbine installed outside the gearbox to remove heat from the gearbox surface through air convection. However, this heat dissipation method is significantly constrained by environmental factors. In areas with low wind speeds or during hot seasons, the air convection speed is slow and the heat dissipation capacity is insufficient, making it difficult to effectively reduce the gearbox temperature. Furthermore, long-term operation of the wind turbine can easily lead to dust accumulation, resulting in decreased heat dissipation efficiency and higher maintenance frequency. The simple oil cooling circulation system uses an oil pump to extract hot oil from the gearbox, cools it through a cooler, and then returns it to the gearbox. However, such coolers often use a single heat dissipation structure with limited heat dissipation area, and the heat exchange between the hot oil and the cooling medium is insufficient. For high-power, high-speed gearboxes, it is difficult to dissipate the generated heat in time, making it difficult to meet their heat dissipation requirements. Utility Model Content

[0004] The purpose of this utility model is to solve the problems existing in the prior art by proposing an oil-cooled heat dissipation device for a wind turbine gearbox.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an oil-cooled heat dissipation device for a gearbox of a wind turbine generator, comprising an assembly support frame, a first heat dissipation mechanism at the upper end of the assembly support frame, a second heat dissipation mechanism at the upper end of the assembly support frame, and an air-cooling mechanism below the first heat dissipation mechanism.

[0006] The first heat dissipation mechanism includes a heat dissipation block, with a heat dissipation pipe wrapped around the upper end of the heat dissipation block. A pump body is installed at both ends of the heat dissipation pipe, and a connecting pipe is fixedly installed at the other end of each of the two sets of pump bodies.

[0007] The air-cooling mechanism includes a square frame, inside which two sets of fans are fixedly installed, and inclined baffles are fixedly installed at the top of the frame and near the two side edges.

[0008] Preferably, two sets of diagonal bracing blocks are fixedly installed on the upper end of the assembly support frame, the lower end of the heat sink block is fixed to the two protrusions on the upper end of the assembly support frame, and the lower ends of the two sets of pump bodies are respectively fixed to the upper ends of the two sets of diagonal bracing blocks.

[0009] Preferably, the upper end of the assembly support has two sets of circular holes, and the lower end of the square frame is fixed to the upper end of the assembly support.

[0010] Preferably, the second heat dissipation mechanism includes a water pump and a storage tank. Cooling pipes are fixedly installed inside the heat dissipation block, a long pipe is fixedly installed at the water inlet of the water pump, a heat conversion component is fixedly installed at the water inlet of the storage tank, and a special-shaped pipe is fixedly installed at the water outlet of the storage tank.

[0011] Preferably, a support frame is fixedly installed at the upper end of the assembly support frame, and the other end of the long pipe is fixed to one end of the cooling pipe.

[0012] Preferably, the other end of the shaped tube is fixed to the other end of the cooling pipe, and the lower end of the heat conversion component is fixed to the upper end of the support frame.

[0013] Preferably, one side of the water pump is fixed to one side of the heat conversion component, and the outlet of the water pump is connected to the inlet of the heat conversion component.

[0014] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0015] 1. In this utility model, by setting up a heat sink and a heat pipe, the hot oil in the gearbox is drawn out by one of the pump bodies and flows in the heat pipe, and the heat is transferred to the heat sink. The coolant in the heat sink can absorb the heat. At the same time, the two sets of fans on the assembly support frame provide air cooling for the heat sink and the heat pipe, realizing a dual heat dissipation method that combines oil cooling and air cooling, which greatly improves the heat dissipation efficiency and can effectively reduce the oil temperature in the gearbox.

[0016] 2. In this utility model, by setting up a second heat dissipation mechanism, with the cooperation of cooling pipes, water pumps, long pipes, storage tanks and heat conversion components, the coolant inside the cooling pipes can absorb the heat from the heat sink. The operation of the water pump can draw away the coolant inside the cooling pipes, cool it through the heat conversion components, store it in the storage tank, and then flow into the cooling pipes through the special-shaped pipes to form a complete circulation system. This system can circulate heat to the heat sink, thereby accelerating the heat dissipation of the heat sink and improving the heat dissipation efficiency. Attached Figure Description

[0017] Figure 1 This utility model provides a three-dimensional structural schematic diagram of an oil-cooled heat dissipation device for a gearbox of a wind turbine generator;

[0018] Figure 2This utility model provides a perspective view of the first heat dissipation mechanism and the heat dissipation mechanism of an oil-cooled heat dissipation device for a gearbox of a wind turbine generator.

[0019] Figure 3 A perspective view of the first heat dissipation mechanism of an oil-cooled heat dissipation device for a gearbox of a wind turbine generator is provided for this utility model.

[0020] Figure 4 This utility model provides a top view of the heat dissipation mechanism and the air cooling mechanism of an oil-cooled heat dissipation device for a wind turbine gearbox.

[0021] Legend: 1. Assembly support frame; 2. Heat dissipation mechanism 1; 21. Heat dissipation block; 22. Heat dissipation pipe; 23. Diagonal brace block; 24. Pump body; 25. Connecting pipe; 3. Heat dissipation mechanism 2; 31. Cooling pipe; 32. Water pump; 33. Long pipe; 34. Storage tank; 35. Irregularly shaped pipe; 36. Support frame; 37. Heat conversion component; 4. Air cooling mechanism; 41. Square frame; 42. Fan; 43. Round hole; 44. Diagonal baffle. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] Example 1: As Figure 1-4 As shown, this utility model provides an oil-cooled heat dissipation device for a gearbox of a wind turbine generator, including an assembly support frame 1, a first heat dissipation mechanism 2 is provided at the upper end of the assembly support frame 1, a second heat dissipation mechanism 3 is provided at the upper end of the assembly support frame 1, and an air-cooling mechanism 4 is provided below the first heat dissipation mechanism 2.

[0025] The first heat dissipation mechanism 2 includes a heat dissipation block 21, with a heat dissipation pipe 22 wound around the upper end of the heat dissipation block 21. Pump bodies 24 are installed at both ends of the heat dissipation pipe 22. Connecting pipes 25 are fixedly installed at the other ends of the two sets of pump bodies 24. Two sets of inclined support blocks 23 are fixedly installed at the upper end of the assembly support frame 1. The lower end of the heat dissipation block 21 is fixed to the two protrusions at the upper end of the assembly support frame 1. The lower ends of the two sets of pump bodies 24 are respectively fixed to the upper ends of the two sets of inclined support blocks 23.

[0026] The air-cooling mechanism 4 includes a square frame 41, inside which two sets of fans 42 are fixedly installed. Slanted baffles 44 are fixedly installed at the upper end of the square frame 41 and near the two side edges. Two sets of round holes 43 are opened through the upper end of the assembly support 1. The lower end of the square frame 41 is fixed to the upper end of the assembly support 1.

[0027] The specific settings and functions of this embodiment are described below. A heat sink 21 is installed on the upper end of the assembly support 1. A heat sink 22 is wrapped around the outer wall of the heat sink 21. Two sets of inclined support blocks 23 are installed on the upper end of the assembly support 1. Pump bodies 24 are installed at both ends of the heat sink 22. The other ends of the two sets of pump bodies 24 are fixedly connected to connecting pipes 25. The other ends of the two sets of connecting pipes 25 are respectively connected to the oil inlet and oil outlet of the gearbox. By controlling the operation of the two sets of pump bodies 24, one set of pump bodies 24 draws the oil inside the gearbox through one set of connecting pipes 25 and introduces it into the heat sink 22. During the flow, the heat sink 21 will absorb the heat on the heat sink 22. The other set of pump bodies 24 will draw the oil inside the heat sink 22 and introduce it into the gearbox through the other set of connecting pipes 25. This can replace the oil inside the gearbox and prevent the heat inside the gearbox from accumulating and affecting the normal operation of the gearbox.

[0028] By installing a square frame 41 on the upper end of the assembly support 1, and installing two sets of fans 42 inside the square frame 41, and opening two sets of round holes 43 through the upper end of the assembly support 1, with the two sets of round holes 43 located below the two sets of fans 42, and fixing two sets of inclined baffles 44 at the upper end of the square frame 41 and near the two side edges, by running the two sets of fans 42, the air generated by the two sets of fans 42 flows upward and blows on the heat sink 21 and heat pipe 22 above, which can cool the heat sink 21 and heat pipe 22 by air, and further improve the heat dissipation efficiency of the heat sink 21 and heat pipe 22.

[0029] The two sets of round holes 43 facilitate the stable operation of the two sets of fans 42, while the two sets of inclined baffles 44 can guide the airflow so that it can be accurately blown onto the heat sink 21, thereby accelerating the heat dissipation of the heat sink 21 and the heat pipe 22.

[0030] Example 2: Figure 1 , Figure 2 and Figure 4As shown, the second heat dissipation mechanism 3 includes a water pump 32 and a storage tank 34. A cooling pipe 31 is fixedly installed inside the heat dissipation block 21. A long pipe 33 is fixedly installed at the inlet of the water pump 32. A heat conversion component 37 is fixedly installed at the inlet of the storage tank 34. A special-shaped pipe 35 is fixedly installed at the outlet of the storage tank 34. A support frame 36 is fixedly installed at the upper end of the assembly support frame 1. The other end of the long pipe 33 is fixed to one end of the cooling pipe 31. The other end of the special-shaped pipe 35 is fixed to the other end of the cooling pipe 31. The lower end of the heat conversion component 37 is fixed to the upper end of the support frame 36. One side of the water pump 32 is fixed to one side of the heat conversion component 37, and the outlet of the water pump 32 is connected to the inlet of the heat conversion component 37.

[0031] The overall effect of this embodiment is as follows: a cooling pipe 31 is installed inside the heat sink 21; a storage tank 34 and a support frame 36 are installed on the upper end of the assembly support frame 1; a heat conversion component 37 is installed on the upper end of the support frame 36; the outlet of the heat conversion component 37 is connected to the inlet pipe of the storage tank 34; a water pump 32 is installed on one side of the heat conversion component 37; a long pipe 33 is installed at the inlet of the water pump 32, and the outlet of the water pump 32 is connected to the inlet of the heat conversion component 37; the other end of the long pipe 33 is fixedly connected to the outlet of the cooling pipe 31; a special-shaped pipe 35 is installed at the outlet of the storage tank 34, and the other end of the special-shaped pipe 35 is connected to the inlet of the cooling pipe 31. With the water inlet fixedly connected, the coolant inside the cooling pipe 31 absorbs the heat from the heat sink 21, thus dissipating heat from the heat sink 21, accelerating heat dissipation, and improving heat dissipation for the processing tank. Then, the water pump 32 is started, and the water pump 32 draws the coolant from the cooling pipe 31 through the long pipe 33 and flows into the heat conversion component 37 to convert the heat of the coolant, thus cooling the coolant. The coolant then flows into the storage tank 34 and then into the cooling pipe 31 through the special-shaped pipe 35, forming a cycle that can continuously dissipate heat from the heat sink 21, improving the heat dissipation efficiency of the gearbox and ensuring its normal operation.

[0032] The usage and working principle of this device are as follows: First, install the assembly support 1 in a suitable position, and connect one end of each of the two sets of connecting pipes 25 to the oil inlet and outlet of the gearbox, respectively. When the gearbox needs to be cooled, the two sets of pumps 24 are operated synchronously. One set of pumps 24 draws the hot oil inside the gearbox through one set of connecting pipes 25 and transfers it into the heat sink 22, allowing the hot oil to flow inside. The heat sink 21 then draws away the heat from the heat sink 22. Meanwhile, the other set of pumps 24 transfers the oil inside the heat sink 22 into the gearbox through the other set of connecting pipes 25, forming a cycle to facilitate the normal operation of the gearbox. During this time, the two sets of fans 42 operate synchronously to provide air cooling for the heat sink 21 and the heat sink 22, thereby accelerating the heat dissipation efficiency of the heat sink 21 and the heat sink 22.

[0033] Finally, the water pump 32 is started. The water pump 32 draws the coolant from inside the cooling pipe 31 through the long pipe 33 and flows into the heat conversion component 37 to convert the coolant into heat, thereby cooling the coolant. The coolant then flows into the storage tank 34 and then into the cooling pipe 31 through the special-shaped pipe 35, forming a cycle. This allows for continuous heat dissipation of the heat sink 21, improving the heat dissipation efficiency of the gearbox and ensuring its normal operation.

[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the technical solution of this utility model shall still fall within the protection scope of this utility model.

Claims

1. A gearbox oil-cooled heat dissipation device for wind turbine generators, comprising an assembly support frame (1), characterized in that: The upper end of the assembly support (1) is provided with a first heat dissipation mechanism (2), the upper end of the assembly support (1) is provided with a second heat dissipation mechanism (3), and the lower end of the first heat dissipation mechanism (2) is provided with a wind-cooling mechanism (4). The first heat dissipation mechanism (2) includes a heat dissipation block (21), the upper end of which is wrapped with a heat dissipation pipe (22), and pump bodies (24) are installed at both ends of the heat dissipation pipe (22). Connecting pipes (25) are fixedly installed at the other ends of the two sets of pump bodies (24). The air-cooling mechanism (4) includes a frame (41), inside which two sets of fans (42) are fixedly installed, and inclined baffles (44) are fixedly installed at the top of the frame (41) and near the two side edges.

2. The gearbox oil-cooled heat dissipation device for a wind turbine generator according to claim 1, characterized in that: Two sets of inclined bracing blocks (23) are fixedly installed on the upper end of the assembly support (1). The lower end of the heat sink (21) is fixed to the two protrusions on the upper end of the assembly support (1). The lower ends of the two sets of pump bodies (24) are respectively fixed to the upper ends of the two sets of inclined bracing blocks (23).

3. The gearbox oil-cooled heat dissipation device for wind turbine generators according to claim 1, characterized in that: The upper end of the assembly support (1) is provided with two sets of round holes (43), and the lower end of the square frame (41) is fixed to the upper end of the assembly support (1).

4. The gearbox oil-cooled heat dissipation device for wind turbine generators according to claim 1, characterized in that: The second heat dissipation mechanism (3) includes a water pump (32) and a storage tank (34). A cooling pipe (31) is fixedly installed inside the heat dissipation block (21). A long pipe (33) is fixedly installed at the inlet of the water pump (32). A heat conversion component (37) is fixedly installed at the inlet of the storage tank (34). A special-shaped pipe (35) is fixedly installed at the outlet of the storage tank (34).

5. The gearbox oil-cooled heat dissipation device for a wind turbine generator according to claim 4, characterized in that: A support frame (36) is fixedly installed on the upper end of the assembly support frame (1), and the other end of the long pipe (33) is fixed to one end of the cooling pipe (31).

6. The gearbox oil-cooled heat dissipation device for a wind turbine generator according to claim 5, characterized in that: The other end of the shaped tube (35) is fixed to the other end of the cooling pipe (31), and the lower end of the heat conversion assembly (37) is fixed to the upper end of the support frame (36).

7. The gearbox oil-cooled heat dissipation device for a wind turbine generator according to claim 6, characterized in that: One side of the water pump (32) is fixed to one side of the heat conversion assembly (37), and the outlet of the water pump (32) is connected to the inlet of the heat conversion assembly (37).

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