A wind turbine cooling system and a wind power plant

Abstract

A wind turbine cooling system and a wind power equipment, the wind turbine cooling system is used for cooling the wind turbine accommodated in a shell, the blade of the wind turbine is arranged outside the shell and at the front end position of the shell; comprising: air inlet, the air inlet is arranged at the bottom position of the shell, at least one air inlet is arranged close to the front end position of the shell; first air outlet, the first air outlet is arranged at the top position of the shell and / or the rear end of the shell; fan, the fan is arranged on the first air outlet, drives the air in the shell to be discharged through the first air outlet. By the above, by arranging the air inlet and the first air outlet on the shell, the cold air from the outside can enter the shell through the air inlet, and is discharged through the first air outlet after heat exchange with the wind turbine. Therefore, the air temperature in the shell can be reduced, and the heat dissipation efficiency of the wind turbine is improved.

Description

Technical Field

[0001] This utility model relates to the field of wind power generation equipment technology, and in particular to a wind turbine cooling system. Background Technology

[0002] Currently, most existing wind turbine units suffer from overheating, which accelerates the aging of internal equipment and electrical components, leading to overheating alarms and even shutdowns. Current upgrade solutions mainly involve simple modifications to water and oil cooling systems to reduce temperature, rarely considering the problem of heat generated by the heat source equipment accumulating inside the nacelle and not being quickly dissipated. This results in excessively high nacelle temperatures, impacting the wind turbine's heat dissipation efficiency. Therefore, there is an urgent need for a wind turbine cooling system and equipment that can effectively reduce the nacelle temperature and improve heat dissipation efficiency. Utility Model Content

[0003] In view of the above-mentioned problems of the prior art, this application provides a wind turbine cooling system and wind power equipment, which can effectively reduce the temperature inside the nacelle and improve the heat dissipation efficiency.

[0004] To achieve the above objectives, the first aspect of this application provides a wind turbine cooling system for dissipating heat from a wind turbine housed within a housing, wherein the blades of the wind turbine are disposed outside the housing at the front end of the housing; comprising: an air inlet disposed at the bottom of the housing, with at least one air inlet disposed near the front end of the housing; a first air outlet disposed at the top of the housing and / or the rear end of the housing; and a fan disposed on the first air outlet to drive air from inside the housing through the first air outlet for discharge.

[0005] As described above, by setting an air inlet and a first air outlet on the outer casing, cool outside air can easily enter the casing through the air inlet and be discharged through the first air outlet after exchanging heat with the wind turbine. This reduces the air temperature inside the casing, thereby improving the heat dissipation efficiency of the wind turbine.

[0006] Meanwhile, by placing the air inlet at the bottom of the casing and the first air outlet at the top and rear of the casing, the cold air entering the casing through the air inlet can flow upward and backward. This facilitates the passage of cold air through the area where the wind turbine is installed, thereby improving heat exchange between the cold air and the wind turbine and enhancing heat dissipation efficiency.

[0007] Furthermore, since heated air rises, placing the air inlet at the bottom of the casing and the first air outlet at the top and rear of the casing facilitates the rapid exhaust of the heated air through the first air outlet. This increases the air exchange rate within the casing, thereby improving heat exchange efficiency.

[0008] As one possible implementation of the first aspect, when viewed from the side of the housing, the first air outlet is located at the top center of the housing.

[0009] As described above, by placing the first air outlet at the top center of the casing, the cold air entering the casing can be moved backward to cool the heat-generating area of ​​the wind turbine located behind the middle stage inside the casing, thereby improving heat dissipation efficiency.

[0010] As one possible implementation of the first aspect, the wind turbine cooling system further includes: a first exhaust duct, the first exhaust duct being located outside the housing, one end of the first exhaust duct being connected to the first air outlet at the top of the housing, and the other end extending backward by bending.

[0011] As described above, when the wind power generation equipment is working, the front end of the casing faces the direction of the wind, meaning the wind outside the casing moves from front to back. By bending the other end of the first exhaust duct backward, the air discharged from the first exhaust duct can move backward with the wind outside the casing, preventing outside wind from entering the first exhaust duct and affecting its exhaust speed.

[0012] As one possible implementation of the first aspect, multiple air inlets are provided, located near the front end, the middle, and near the rear end of the housing, respectively.

[0013] As a result, the cold air entering the casing through the air inlet can be more evenly distributed, and the heat dissipation of heat-generating parts in different locations inside the casing can be more even, thereby improving heat dissipation efficiency.

[0014] As one possible implementation of the first aspect, a partition is provided inside the housing to divide the space inside the housing into front and rear sections; the wind turbine cooling system further includes a second air outlet, which is disposed on the partition.

[0015] As described above, by setting a second air outlet on the partition, air in the front space inside the casing can pass through the partition through the second air outlet and be discharged from the first air outlet at the rear of the casing. This facilitates the rearward movement and complete discharge of air inside the casing, preventing air near the partition from being trapped and affecting heat dissipation efficiency.

[0016] As one possible implementation of the first aspect, the wind turbine cooling system further includes a second exhaust duct, which connects the second air outlet to the first air outlet located at the rear end of the housing.

[0017] As described above, the second exhaust duct connects the second air outlet to the first air outlet, allowing air exhausted from the second air outlet to be easily discharged through the first air outlet. This improves the airflow from the second air outlet, thus enhancing heat dissipation efficiency.

[0018] As one possible implementation of the first aspect, the first air outlet located at the rear end of the housing is provided with multiple outlets, some of which are connected to the first air outlet through the second exhaust duct.

[0019] As one possible implementation of the first aspect, the fan is an axial flow fan.

[0020] This application also provides a wind power device, comprising: a tower, wherein an installation platform is provided on the top of the tower; a wind turbine, wherein the wind turbine is installed on the installation platform; a housing, wherein the housing is installed on the installation platform and the installation platform and the wind turbine are housed inside the housing; and a heat dissipation system, wherein the heat dissipation system is the wind turbine heat dissipation system described in any one of the first aspects.

[0021] As described above, by setting an air inlet and a first air outlet on the outer casing, cool outside air can easily enter the casing through the air inlet and be discharged through the first air outlet after exchanging heat with the wind turbine. This reduces the air temperature inside the casing, thereby improving the heat dissipation efficiency of the wind turbine.

[0022] Meanwhile, by placing the air inlet at the bottom of the casing and the first air outlet at the top and rear of the casing, the cold air entering the casing through the air inlet can flow upward and backward. This facilitates the passage of cold air through the area where the wind turbine is installed, thereby improving heat exchange between the cold air and the wind turbine and enhancing heat dissipation efficiency.

[0023] Furthermore, since heated air rises, placing the air inlet at the bottom of the casing and the first air outlet at the top and rear of the casing facilitates the rapid exhaust of the heated air through the first air outlet. This increases the air exchange rate within the casing, thereby improving heat exchange efficiency.

[0024] As one possible implementation of the second aspect, multiple air inlets are provided, with some of the air inlets arranged around the tower.

[0025] As mentioned above, since the outer casing needs to rotate with the installation platform, by setting multiple air inlets around the sleeve, the air inlets can be machined at the connection between the outer casing and the tower, thereby reducing the machining difficulty.

[0026] These and other aspects of this invention will become more apparent in the following description of several embodiments. Attached Figure Description

[0027] The various features of this utility model and the relationships between them are further explained below with reference to the accompanying drawings. The drawings are exemplary; some features are not shown to scale, and some drawings may omit conventional features in the field of this application that are not essential to this application, or additional features that are not essential to this application may be shown. The combination of features shown in the drawings is not intended to limit this application. Furthermore, throughout this specification, the same reference numerals refer to the same things. Specific descriptions of the drawings are as follows:

[0028] Figure 1 This is a schematic diagram of the wind power equipment in this application.

[0029] Explanation of reference numerals in the attached figures

[0030] 10 Wind power equipment; 100 Tower; 110 Mounting platform; 200 Wind turbine; 210 Blade; 220 Gearbox; 230 Generator; 240 Control cabinet; 250 Frequency converter cabinet; 300 Housing; 310 Partition; 400 Cooling system; 410 Air inlet; 420 First air outlet; 430 Fan; 440 First exhaust duct; 450 Second air outlet; 460 Second exhaust duct. Detailed Implementation

[0031] The terms "first," "second," "third," etc., used in the specification and claims are only used to distinguish similar objects and do not represent a specific ordering of objects. It is understood that, where permissible, a specific order or sequence may be interchanged so that the embodiments of this application described herein can be implemented in an order other than that illustrated or described herein.

[0032] The term "comprising" as used in the specification and claims should not be construed as limiting itself to what follows; it does not exclude other elements. Therefore, it should be interpreted as specifying the presence of the mentioned feature, integral, or component, but does not exclude the presence or addition of one or more other features, integrals, or components, or groups thereof. Thus, the statement "equipment comprising means A and B" should not be limited to an equipment consisting solely of components A and B.

[0033] The terms "an embodiment" or "an embodiment" as used in this specification mean that a particular feature, structure, or characteristic described in conjunction with that embodiment is included in at least one embodiment of the present invention. Therefore, the terms "in one embodiment" or "in an embodiment" appearing throughout this specification do not necessarily refer to the same embodiment, but may refer to the same embodiment. Furthermore, in one or more embodiments, the particular features, structures, or characteristics can be combined in any suitable manner, as will be apparent to those skilled in the art from this disclosure.

[0034] This application provides a heat dissipation system 400 for a wind turbine 200 housed within a housing 300. The specific structure of the heat dissipation system 400 for the wind turbine 200 is described below with reference to the accompanying drawings.

[0035] Figure 1 This is a structural schematic diagram of the wind turbine 10 in this application. Figure 1 As shown, the blades 210 of the wind turbine 200 are disposed outside the housing 300, at the front end of the housing 300. The cooling system 400 of the wind turbine 200 includes an air inlet 410, a first air outlet 420, and a fan 430. The air inlet 410 is located at the bottom of the housing 300, and at least one air inlet 410 is located near the front end of the housing 300. The first air outlet 420 is located at the top of the housing 300, and / or at the rear end of the housing 300. The fan 430 is mounted on the first air outlet 420 and drives the air inside the housing 300 to be discharged through the first air outlet 420.

[0036] As described above, by providing an air inlet 410 and a first air outlet 420 on the outer casing 300, cold outside air can easily enter the outer casing 300 through the air inlet 410 and be discharged through the first air outlet 420 after exchanging heat with the wind turbine 200. This reduces the air temperature inside the outer casing 300, thereby improving the heat dissipation efficiency of the wind turbine 200.

[0037] Meanwhile, by placing the air inlet 410 at the bottom of the housing 300 and the first air outlet 420 at the top and rear of the housing 300, the cold air entering the housing 300 through the air inlet 410 can flow upward and backward. This facilitates the passage of cold air through the area where the wind turbine 200 is installed, thereby facilitating heat exchange between the cold air and the wind turbine 200 and improving heat dissipation efficiency.

[0038] Furthermore, since heated air rises, by placing the air inlet 410 at the bottom of the outer casing 300 and the first air outlet 420 at the top and rear of the outer casing 300, the heated air can be quickly discharged through the first air outlet 420. This increases the air exchange rate within the outer casing 300, thereby improving heat exchange efficiency.

[0039] like Figure 1 As shown, in some embodiments, viewed from the side of the housing 300, the first air outlet 420 is located at the top center of the housing 300. Therefore, by positioning the first air outlet 420 at the top center of the housing 300, the cool air entering the housing 300 can be moved rearward to cool the heat-generating area of ​​the wind turbine 200 located behind the middle stage within the housing 300, thereby improving heat dissipation efficiency.

[0040] like Figure 1 As shown, in some embodiments, the cooling system 400 of the wind turbine 200 further includes a first exhaust duct 440. The first exhaust duct 440 is located outside the housing 300, with one end connected to a first air outlet 420 at the top of the housing 300, and the other end bent backward. Thus, when the wind power generation equipment is operating, the front end of the housing 300 faces the direction of the wind, meaning the wind outside the housing 300 moves from front to back. By bending the other end of the first exhaust duct 440 backward, the air discharged from the first exhaust duct 440 can move backward with the wind outside the housing 300, preventing external wind from entering the first exhaust duct 440 and affecting its exhaust speed.

[0041] like Figure 1 As shown, in some embodiments, multiple air inlets 410 are provided, located near the front end, middle, and rear end of the housing 300, respectively. This allows for more uniform distribution of cold air entering the housing 300 through the air inlets 410, resulting in more even heat dissipation from heat-generating components at different locations within the housing 300, thereby improving heat dissipation efficiency.

[0042] like Figure 1As shown, in some embodiments, a partition 310 is provided inside the housing 300, dividing the space inside the housing 300 into front and rear sections; the cooling system 400 of the wind turbine 200 also includes a second air outlet 450, which is disposed on the partition 310. Thus, by providing the second air outlet 450 on the partition 310, air in the front section of the housing 300 can pass through the partition 310 through the second air outlet 450 and be discharged from the first air outlet 420 at the rear end of the housing 300. This facilitates the rearward movement and complete discharge of air inside the housing 300, preventing air near the partition 310 from being trapped and affecting cooling efficiency.

[0043] like Figure 1 As shown, in some embodiments, the cooling system 400 of the wind turbine 200 further includes a second exhaust duct 460, which connects the second air outlet 450 to the first air outlet 420 located at the rear end of the housing 300. Thus, by connecting the second air outlet 450 and the first air outlet 420 through the second exhaust duct 460, air exhausted from the second air outlet 450 can be conveniently exhausted from the first air outlet 420. This allows for smoother airflow from the second air outlet 450, thereby improving cooling efficiency.

[0044] like Figure 1 As shown, in some embodiments, the fan 430 is also mounted on the second air outlet 450.

[0045] like Figure 1 As shown, in some embodiments, a plurality of first air outlets 420 located at the rear end of the housing 300 are provided, some of which are connected to the first air outlets 420 through a second exhaust duct 460.

[0046] In some embodiments, the fan 430 is an axial flow fan 430.

[0047] The above description provides an exemplary embodiment of the heat dissipation system 400 for the wind turbine generator 200 in this application. This application also provides a wind power device 10; below, with reference to the accompanying drawings, an exemplary embodiment of the wind power device 10 in this application will be described.

[0048] like Figure 1 As shown, the wind power equipment 10 in this application includes a tower 100, a wind turbine 200, a housing 300, and a heat dissipation system 400. The tower 100 has a mounting platform 110 at its top, and the wind turbine 200 is mounted on the mounting platform 110. The housing 300 is mounted on the mounting platform 110, housing the mounting platform 110 and the wind turbine 200 inside the housing 300. The heat dissipation system 400 can be any of the possible implementations of the wind turbine 200 heat dissipation system 400 described above, and will not be elaborated further here.

[0049] In some embodiments, multiple air inlets 410 are provided, with some air inlets 410 arranged around the tower 100. Since the outer casing 300 needs to rotate with the mounting platform 110 on the mounting platform 110, by providing multiple air inlets 410 around the sleeve, the air inlets 410 can be machined at the position where the outer casing 300 is connected to the tower 100, thereby reducing the machining difficulty.

[0050] In some embodiments, an air inlet 410 is annular and arranged around the tower 100.

[0051] The above description provides an exemplary description of possible embodiments of the heat dissipation system 400 of the wind turbine 200 and the wind power equipment 10. Below, with reference to the accompanying drawings, a detailed description of the specific structure of the wind power equipment 10 in this application will be given in a particular embodiment.

[0052] like Figure 1 As shown, the wind power equipment 10 includes a tower 100, a wind turbine 200, a casing 300, and a cooling system 400. The tower 100 is cylindrical and vertically arranged. A mounting platform 110 is located at the top of the tower 100, and the mounting platform 110 can rotate horizontally on the tower 100. The wind turbine 200 is mounted on the mounting platform 110 and rotates with the mounting platform 110 to face a suitable wind direction, thus generating electricity. The casing 300 is mounted on the mounting platform 110, housing the mounting platform 110 and the wind turbine 200 inside the casing 300. The cooling system 400 is mounted on the casing 300 and is used to dissipate heat from the wind turbine 200.

[0053] like Figure 1 As shown, the wind turbine generator set 200 includes blades 210, a gearbox 220, a generator 230, a control cabinet 240, and a frequency converter cabinet 250. The blades 210 are located outside the housing 300, at the front end, and can rotate under wind power. The gearbox 220, generator 230, control cabinet 240, and frequency converter cabinet 250 are located inside the housing 300, in the middle position. The blades 210 are connected to the generator 230 via the gearbox 220. When the blades 210 rotate, the rotational power is transmitted to the generator 230 through the gearbox 220, driving the generator 230 to generate electricity. The control cabinet 240 and frequency converter cabinet 250 are electrically connected to the generator 230 and are used to control the wind power equipment 10 and transmit the power generated by the generator 230.

[0054] like Figure 1As shown, the outer casing 300 is a horizontally arranged columnar component. A partition 310 is provided inside the outer casing 300, dividing the outer casing 300 into front and rear sections. The partition 310 is located near the rear end of the outer casing 300, resulting in a larger front section and a smaller rear section. The gearbox 220, generator 230, control cabinet 240, and frequency converter cabinet 250 are located in the front section of the outer casing 300.

[0055] like Figure 1 As shown, the cooling system 400 of the wind turbine 200 includes an air inlet 410, a first air outlet 420, and a wind turbine 430. Three air inlets 410 are provided: one is located at the bottom of the outer casing 300 near the front end, connected to the front end of the outer casing 300 on one side and the tower 100 on the other; another is located at the middle of the bottom of the outer casing 300, connected to the tower 100 on one side; and the third is located at the bottom of the outer casing 300 near the rear end, in the middle of the rear section of the outer casing 300. Thus, cool outside air can enter the outer casing 300 through the three air inlets 410 from the bottom near the front end, the rear end, and the middle of the outer casing 300, thereby uniformly cooling the wind turbine 200.

[0056] like Figure 1 As shown, there are three first air outlets 420. One first air outlet 420 is located at the top center of the housing 300, one first air outlet 420 is located at the rear end of the housing 300 near the top, and another first air outlet 420 is located at the rear end of the housing 300 near the center.

[0057] like Figure 1 As shown, the cooling system 400 of the wind turbine 200 also includes a first exhaust duct 440. A fan 430 is fixedly installed on a first air outlet 420 located at the top center of the housing 300. The first exhaust duct 440 is located on the outside of the housing 300. One end of the first exhaust duct 440 is connected to the fan 430 on the first air outlet 420 at the top of the housing 300, and the other end is bent 90° and faces rearward. When the wind turbine 10 is operating, the front end of the housing 300 faces the direction of the wind, meaning the wind outside the housing 300 moves from front to back. By bending the other end of the first exhaust duct 440 backward, the air discharged from the first exhaust duct 440 can move backward with the wind outside the housing 300, preventing outside wind from entering the first exhaust duct 440 and affecting its exhaust speed.

[0058] like Figure 1As shown, the air inlet 410 at the front of the gearbox 220 passes through the first air outlet 420 at the top of the housing 300, and the air inlet 410 at the middle position also passes through the first air outlet 420 at the top of the housing 300. Therefore, air entering the housing 300 through the front air inlet 410 can pass through the gearbox 220 during its flow towards the first air outlet 420 at the top of the housing 300, and after heat exchange with the gearbox 220, it is discharged through the first air outlet 420.

[0059] like Figure 1 As shown, the cooling system 400 of the wind turbine 200 also includes a second air outlet 450 and a second exhaust duct 460. The second air outlet 450 is mounted on the partition 310, located near the top of the partition 310. The second exhaust duct 460 connects the second air outlet 450 to a first air outlet 420 located above the rear end of the housing 300. A fan 430 is mounted on the front side of the second air outlet 450 to drive air through the second air outlet 450, through the second exhaust duct 460, and out through the first air outlet 420. The generator 230, control cabinet 240, and frequency converter cabinet 250 are located at the point where the line connecting the air inlet 410 and the second air outlet 450 passes. Therefore, the air entering the housing 300 through the air inlet 410 in the middle position can pass through the generator 230, control cabinet 240 and frequency converter cabinet 250 during the flow toward the second air outlet 450. After heat exchange with the generator 230, control cabinet 240 and frequency converter cabinet 250, it is discharged from the second exhaust outlet.

[0060] like Figure 1 As shown, a fan 430 is also provided on the first air outlet 420 located in the middle of the rear end of the housing 300. Air can enter the rear space inside the housing 300 through the air inlet 410 located near the rear end of the housing 300, and after heat exchange is completed in the space, it is discharged from the first air outlet 420 under the drive of the fan 430.

[0061] Furthermore, fan 430 is an axial flow fan 430.

[0062] Note that the above are merely preferred embodiments and the technical principles employed in this application. Those skilled in the art will understand that this utility model is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of this utility model. Therefore, although this application has been described in detail through the above embodiments, this utility model is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of this utility model, all of which fall within the protection scope of this utility model.

Claims

1. A wind turbine cooling system, characterized in that, Used for heat dissipation of a wind turbine unit housed within a casing, wherein the blades of the wind turbine unit are disposed outside the casing and located at the front end of the casing; comprising: An air inlet is provided at the bottom of the housing, and at least one of the air inlets is provided near the front end of the housing. The first air outlet is located at the top of the housing and / or the rear end of the housing; A fan is installed at the first air outlet to drive the air inside the housing to be discharged through the first air outlet.

2. The wind turbine cooling system according to claim 1, characterized in that, Viewed from the side of the housing, the first air outlet is located at the top center of the housing.

3. The wind turbine cooling system according to claim 1, characterized in that, Also includes: The first exhaust duct is located on the outside of the housing. One end of the first exhaust duct is connected to the first air outlet at the top of the housing, and the other end bends backward and extends.

4. The wind turbine cooling system according to claim 1, characterized in that, The air inlets are provided in multiple locations, which are located near the front end, the middle, and the rear end of the outer casing.

5. The wind turbine cooling system according to claim 1, characterized in that, The outer casing is provided with a partition, dividing the space inside the outer casing into front and rear sections; it also includes: The second air outlet is located on the partition.

6. The wind turbine cooling system according to claim 5, characterized in that, Also includes: The second exhaust duct connects the second air outlet to the first air outlet located at the rear end of the housing.

7. The wind turbine cooling system according to claim 6, characterized in that, The first air outlet located at the rear end of the housing is provided with multiple outlets, some of which are connected to the first air outlet through the second exhaust duct.

8. The wind turbine cooling system according to claim 1, characterized in that, The fan is an axial flow fan.

9. A wind power device, characterized in that, include: A tower, the top of which is provided with an installation platform; Wind turbine generator set, wherein the wind turbine generator set is mounted on the mounting platform; An outer casing, which is mounted on the mounting platform and houses the mounting platform and the wind turbine unit inside the outer casing; The heat dissipation system is the wind turbine heat dissipation system according to any one of claims 1-8.

10. The wind power equipment according to claim 9, characterized in that, The air inlets are provided in multiple ways, and some of the air inlets are arranged around the tower.

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