Cooling system of direct-driven wind driven generator and wind driven generator set

Abstract

The utility model discloses a cooling system of a direct-driven wind driven generator and a wind driven generator set, and relates to the field of wind driven generators, the cooling system comprises a platform fixed on the top of a cabin, the platform is provided with a plurality of cooling fans, and the cooling fans are electrically connected with a main controller of the wind driven generator set. The air outlet end of the cooling fan is communicated with the interior of the generator through a hose, the generator is further provided with an air outlet, and a bent pipe is arranged at the air outlet and deviates from the position where the platform is located. According to the utility model, the purpose of cooling heating components in the generator can be achieved.

Description

Technical Field

[0001] The utility model relates to the field of wind turbines, in particular to a cooling system of a direct-drive wind turbine and a wind turbine set. Background Art

[0002] A wind turbine is a system that converts the kinetic energy of wind into electrical energy. At present, the top of the nacelle of a certain type of 1.5MW wind turbine is directly surrounded by a cover, and there is no cooling system outside the nacelle. With the development of the technical transformation project of wind turbines, new generators need to be matched with corresponding cooling systems, so it is necessary to transform the 1.5MW wind turbine and the cooling system. After removing the redundant nacelle cover, the space on the platform on the top of the nacelle is used to redesign and install the cooling system to achieve the purpose of cooling the heat-generating components in the generator. Utility Model Content

[0003] The purpose of the utility model is to provide a cooling system for a direct-drive wind turbine generator and a wind turbine generator set in order to solve the above-mentioned problems, so as to achieve the purpose of cooling the heat-generating components in the generator.

[0004] The technical solution adopted by the utility model is as follows: a cooling system for a direct-drive wind turbine generator, comprising a platform fixed to the top of a nacelle, a plurality of cooling fans are arranged on the platform, the cooling fans are electrically connected to the main controller of the wind turbine generator set, the air outlet end of the cooling fan is connected to the inside of the generator through a hose, the generator also has an air outlet, a curved pipe is arranged at the air outlet, and the curved pipe is away from the position where the platform is located.

[0005] Furthermore, a filter is provided at the air inlet end of the cooling fan, and the filter is communicated with the air inlet end of the cooling fan.

[0006] Furthermore, a meteorological rack mounting bracket is also provided on the platform.

[0007] Furthermore, a mounting plate is provided on the top of the meteorological rack mounting bracket.

[0008] Furthermore, the weather rack mounting bracket has a cable threading hole, the cable inlet end of the cable threading hole is located at the top of the weather rack mounting bracket and inside the mounting plate, and the cable outlet end of the cable threading hole is located at the bottom of the weather rack mounting bracket.

[0009] Furthermore, the platform has a bottom plate, which is fixed to the top of the cabin; a skylight is provided on the bottom plate, and the position of the skylight is opposite to the manhole of the wind turbine generator set.

[0010] Furthermore, the skylight is rotatably connected to the base plate, and both end surfaces of the skylight are provided with handles.

[0011] Furthermore, the platform also has a fence, which surrounds the bottom plate.

[0012] Furthermore, a lifting ring is also provided on the platform.

[0013] A wind power generator set comprises the cooling system of the direct-drive wind power generator.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0015] 1. The utility model cools the inside of the generator by sending cold air (relative to the inside of the generator, the air temperature is lower) from the outside of the generator into the generator, absorbing the heat generated by the heating components in the generator and then flowing out of the generator, thereby achieving the purpose of cooling the heating components in the generator;

[0016] 2. In the present invention, the hot air flowing out of the generator flows away from the platform to avoid the accumulation of hot air on the platform, so that the cold air sent in by the cooling fan can be kept at a low temperature to ensure the cooling effect inside the generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 A mounting bracket for the meteorological rack disclosed in the utility model;

[0020] Markings in the figure: 1-generator; 2-platform; 21-bottom plate; 22-fence; 23-lifting ring; 3-cooling fan; 4-hose; 5-filter; 6-elbow; 7-meteorological rack mounting bracket; 71-mounting plate; 72-cable threading hole; 73-outlet terminal; 8-skylight; 81-handle. DETAILED DESCRIPTION

[0021] In the description of this specification, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or is the orientation or position relationship in which the product of this specification is usually placed when used. It is only for the convenience of describing this specification and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this specification.

[0022] In addition, if the terms "horizontal" or "vertical" appear in the description of this specification, it does not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0023] In the description of this specification, it should also be noted that, unless otherwise clearly stipulated and limited, the terms "set", "installed", "connected" and "connected" should be understood in a broad sense. For example, the connection can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be a connection between the internal parts of two elements.

[0024] Example 1

[0025] like Figure 1-Figure 2 As shown, a cooling system of a direct-drive wind turbine generator comprises a platform 2 fixed to the top, a plurality of cooling fans 3 are arranged on the platform 2, and the plurality of cooling fans 3 are arranged in a row to avoid mutual influence between the cooling fans 3; the cooling fans 3 are electrically connected to the main controller of the wind turbine generator set, that is, the power of the cooling fans 3 is obtained from the main controller, and the operation of the cooling fans 3 is controlled by the main controller; the air outlet of the cooling fans 3 is connected to the inside of the generator 1 through a hose 4, and the cooling fans 3 send external cold air into the generator 1 to absorb the heat generated by the heat-generating components in the generator 1; the generator 1 also has At the air outlet, the air sent into the generator 1 by the cooling fan 3 absorbs the heat generated by the heat-generating components and then flows out of the generator 1 from the air outlet, thereby taking away the heat in the generator 1 to control the temperature in the generator 1; a curved pipe 6 is provided at the air outlet, and the hot air (high-temperature air flowing out of the generator 1) flows out of the generator 1 through the curved pipe 6. The curved pipe 6 is away from the location of the platform 2 to prevent the hot air from flowing back to the location of the platform 2, that is, to prevent the cooling fan 3 from sending high-temperature air into the generator 1 again, thereby ensuring that the cold air sent in by the cooling fan 3 is at a lower temperature, thereby ensuring the cooling effect of the generator 1.

[0026] To sum up, in this embodiment, the cold air outside the generator 1 (the air temperature is lower than that inside the generator 1) is sent into the generator 1, and the heat generated by the heat-generating components in the generator 1 is absorbed and then flows out of the generator 1, so as to cool the inside of the generator 1 and achieve the purpose of cooling the heat-generating components in the generator 1; the flow direction of the hot air flowing out of the generator 1 is away from the location of the platform 2, so as to avoid the accumulation of hot air on the platform 2, so that the cold air sent in by the cooling fan 3 can be kept at a low temperature, thereby ensuring the cooling effect inside the generator 1.

[0027] Example 2

[0028] Based on Example 1, a feasible implementation method is further proposed.

[0029] In a feasible implementation manner, a filter 5 is provided at the air inlet end of the cooling fan 3, and the filter 5 is connected to the air inlet end of the cooling fan 3. The connection can be achieved through a hose 4, or the filter 5 can be directly installed on the air inlet end of the cooling fan 3 through a flange; the purpose of setting the filter 5 is to filter impurities (such as dust, etc.) in the external cold air to prevent impurities from entering the filter 5 and affecting the normal operation of the internal equipment of the generator 1.

[0030] A feasible implementation method is as follows: Figure 1-Figure 2 As shown, a meteorological rack mounting bracket 7 is also provided on the platform 2 for mounting a meteorological detection device.

[0031] Furthermore, a mounting plate 71 is provided on the top of the meteorological rack mounting bracket 7, and a through hole array is provided around the mounting plate 71 for bolts to pass through, that is, the structure of the mounting plate 71 is similar to a flange structure; the meteorological monitoring device can be installed on the meteorological rack mounting bracket 7 through the mounting plate 71.

[0032] A feasible implementation manner, the meteorological rack mounting bracket 7 has a cable threading hole 72, the inlet end of the cable threading hole 72 is located at the top of the meteorological rack mounting bracket 7 and is located in the mounting plate 71, and the outlet end 73 of the cable threading hole 72 is located at the bottom of the meteorological rack mounting bracket 7. After the meteorological monitoring device is installed, the inlet end of the cable threading hole 72 will be closed to prevent external rainwater from entering the cable threading hole 72, thereby reducing the possibility of corrosion of the cable and extending the life of the cable.

[0033] In a feasible implementation manner, the platform 2 has a bottom plate 21, which is fixed to the top of the cabin; a skylight 8 is provided on the bottom plate 21, and the position of the skylight 8 is opposite to the manhole of the wind turbine generator set, so that maintenance personnel can enter the platform 2 conveniently, that is, the maintenance personnel can enter the platform 2 through the inherent manhole and skylight 8 of the wind turbine generator set.

[0034] In a feasible implementation manner, the skylight 8 is rotatably connected to the base plate 21 to ensure that the skylight 8 can be opened and closed; both end surfaces of the skylight 8 have handles 81 to facilitate maintenance personnel to open or close the skylight 8 through the handles 81.

[0035] In a feasible implementation manner, the platform 2 further has a fence 22 , which surrounds the bottom plate 21 , and the fence 22 plays a protective role.

[0036] In a feasible implementation manner, a lifting ring 23 is further provided on the platform 2 , and the platform 2 can be lifted by the lifting ring 23 , so as to facilitate the installation of the platform 2 .

[0037] Example 3

[0038] A wind turbine generator set includes a cooling system for a direct-drive wind turbine generator as described in any one of embodiments 1-2, which can effectively cool the heat-generating components in the generator.

[0039] The present invention is not limited to the above-mentioned specific implementation modes, but extends to any new features or any new combination disclosed in this specification, as well as any new method or process steps or any new combination disclosed.

Claims

1. A cooling system for a direct-drive wind turbine generator, characterized in that: The invention comprises a platform (2) fixed to the top of a nacelle, wherein a plurality of cooling fans (3) are arranged on the platform (2), and the cooling fans (3) are electrically connected to a main controller of a wind turbine generator set, and an air outlet of the cooling fans (3) is connected to the inside of a generator (1) via a hose (4), and the generator (1) also has an air outlet, and a curved pipe (6) is arranged at the air outlet, and the curved pipe (6) is away from the position where the platform (2) is located.

2. A cooling system for a direct-drive wind turbine according to claim 1, characterized in that: The air inlet end of the cooling fan (3) is provided with a filter (5), and the filter (5) is in communication with the air inlet end of the cooling fan (3).

3. A cooling system for a direct-drive wind turbine according to claim 1, characterized in that: A meteorological rack mounting bracket (7) is also provided on the platform (2).

4. A cooling system for a direct-drive wind turbine according to claim 3, characterized in that: A mounting plate (71) is provided on the top of the meteorological rack mounting bracket (7).

5. A cooling system for a direct-drive wind turbine according to claim 4, characterized in that: The weather rack mounting bracket (7) has a cable threading hole (72), an inlet end of the cable threading hole (72) is located at the top of the weather rack mounting bracket (7) and inside the mounting plate (71), and an outlet end (73) of the cable threading hole (72) is located at the bottom of the weather rack mounting bracket (7).

6. A cooling system for a direct-drive wind turbine according to any one of claims 1 to 5, characterized in that: The platform (2) has a bottom plate (21), and the bottom plate (21) is fixed to the top of the cabin; a skylight (8) is provided on the bottom plate (21), and the position of the skylight (8) is opposite to the manhole of the wind turbine generator set.

7. A cooling system for a direct-drive wind turbine according to claim 6, characterized in that: The skylight (8) is rotatably connected to the bottom plate (21), and both end surfaces of the skylight (8) are provided with handles (81).

8. A cooling system for a direct-drive wind turbine according to claim 6, characterized in that: The platform (2) further comprises a fence (22) which surrounds the base plate (21).

9. A cooling system for a direct-drive wind turbine according to any one of claims 1 to 5, characterized in that: The platform (2) is also provided with a lifting ring (23).

10. A wind turbine generator set, characterized in that: A cooling system for a direct-drive wind turbine generator comprising the cooling system of any one of claims 1 to 9.

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