Cooling pipeline supporting device, liquid cooling system and wind generating set

Abstract

The invention provides a cooling pipeline supporting device, a liquid cooling system and a wind generating set, the cooling pipeline supporting device comprises a fixed frame and a rotating frame, the fixed frame is used for being connected to a tower, and the fixed frame is provided with a supporting surface used for supporting a cooling pipeline; the rotating frame is used for being connected to a cabin, the rotating frame is rotatably arranged in the center of the fixing frame, and the rotating frame extends in the axis direction of the rotating frame and exceeds the supporting face by a preset distance, so that the cooling pipeline can be spirally arranged on the peripheral wall of the rotating frame. The rotating frame is rotatably connected to the fixing frame, and when the cabin rotates in a yawing mode relative to the tower, the cooling pipeline can be spirally arranged on the rotating frame or can be separated from the rotating frame, so that the cooling pipeline can adapt to the cabin to do yawing rotation relative to the tower, the cooling pipeline is prevented from being excessively twisted and even torn, and the cooling effect is improved. Therefore, faults of the cooling pipeline are avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of wind power generation, and in particular relates to a cooling pipeline support device, a liquid cooling system and a wind power generator set. Background Art

[0002] As the power of high-power wind turbines continues to increase, in order to ensure the normal operation of wind turbines, the cooling system of wind turbines has gradually attracted people's attention. During the operation of wind turbines, the nacelle will yaw with the wind. How to achieve the exchange of coolant between the nacelle and the tower during this process has become a technical difficulty. Summary of the invention

[0003] The main purpose of the present disclosure is to provide a cooling pipeline support device, a liquid cooling system and a wind turbine generator set, so that the cooling liquid in the nacelle and the tower can communicate with each other.

[0004] To achieve the above objectives, the present disclosure provides at least the following technical solutions:

[0005] In one aspect of the present disclosure, there is provided a cooling pipe support device, which is applicable to a wind turbine generator set, wherein the cooling pipe support device comprises a fixed frame and a rotating frame, wherein the fixed frame is used to be connected to a tower, and the fixed frame has a supporting surface for supporting the cooling pipe; the rotating frame is used to be connected to a nacelle, and the rotating frame is rotatably arranged at a central position of the fixed frame, and the rotating frame extends in an axial direction thereof and exceeds the supporting surface by a predetermined distance, so that the cooling pipe can be spirally arranged on the outer peripheral wall of the rotating frame.

[0006] According to an exemplary embodiment of the present disclosure, the cooling pipeline supporting device further comprises a guiding portion for guiding the cooling pipeline, and the guiding portion is spirally disposed on an outer peripheral wall of the rotating frame along an axial direction of the rotating frame.

[0007] According to an exemplary embodiment of the present disclosure, the support surface includes a first support surface, the fixed frame includes a frame outer ring and a first support member, the frame outer ring is spaced apart on the radial outside of the rotating frame, the first support member extends from the frame outer ring toward the rotating frame, and the first support surface is arranged on the first support member.

[0008] Specifically, the support surface also includes a second support surface, which is spaced apart from the first support surface in the axial direction. The fixed frame also includes a second support member, which extends from the outer ring of the frame body toward the rotating frame, and the second support surface is arranged on the second support member.

[0009] Optionally, the first support member includes a plurality of first support rods, the second support member includes a plurality of second support rods, and the first support rods and the second support rods are alternately arranged along the circumference of the rotating frame; or, the first support member includes a plurality of first support rods, the second support member includes a plurality of second support rods, and the first support rods and the second support rods are parallel and spaced apart along the axial direction of the fixed frame.

[0010] In another exemplary embodiment of the present disclosure, the first supporting surface is a first conical surface extending obliquely upward from the outer ring of the frame body toward the rotating frame, and / or the second supporting surface is a second conical surface extending obliquely upward from the outer ring of the frame body toward the rotating frame.

[0011] Specifically, the first supporting surface is a first conical surface extending obliquely upward from the outer ring of the frame body toward the rotating frame, and a first cone angle is provided between the first cone surface and the horizontal plane, and the first cone angle is any value between 10°-45°; and / or, the second supporting surface is a second conical surface extending obliquely upward from the outer ring of the frame body toward the rotating frame, and a second cone angle is provided between the second cone surface and the horizontal plane, and the second cone angle is any value between 10°-45°.

[0012] In another exemplary embodiment of the present disclosure, the cooling pipeline supporting device further comprises a protective cover, wherein the protective cover is sleeved on the outside of the rotating frame, and the space between the protective cover and the rotating frame is configured as an accommodating cavity for accommodating the cooling pipeline.

[0013] Optionally, the protective cover is connected to one of the fixed frame and the rotating frame.

[0014] Specifically, a top through hole for the yaw twist cable to pass through is provided at the top of the protective cover, and the cooling pipeline is arranged on the outside of the top through hole along the radial interval of the rotating frame and / or a twist cable through hole for the yaw twist cable to pass through is provided at the top of the rotating frame, and the cooling pipeline is arranged on the outside of the twist cable through hole along the radial interval of the rotating frame.

[0015] On the other hand, the present disclosure provides a liquid cooling system, which includes a cooling pipeline and a cooling pipeline supporting device as described above, and the liquid cooling system is used to transport cooling liquid from the tower to the cabin, or from the cabin to the tower, and part of the cooling pipeline can be spirally arranged on the outer peripheral wall of the rotating frame and / or part of the cooling pipeline is spirally supported on the supporting surface of the fixed frame.

[0016] On the other hand, the present disclosure provides a wind turbine generator set, which includes a tower, a nacelle arranged on the top of the tower, and the liquid cooling system as described above, wherein the fixed frame is connected to the tower, the rotating frame is connected to the nacelle, and the liquid cooling system is used to transport cooling liquid from the tower to the nacelle, and / or from the nacelle to the tower.

[0017] According to an exemplary embodiment of the present disclosure, a top platform is provided on the top of the tower, and the rotating frame is rotatably connected to the top of the top platform via a bearing.

[0018] The cooling pipe support device, liquid cooling system and wind turbine generator set provided by the present invention have at least the following beneficial effects: the cooling pipe support device of the present invention is rotatably connected to the fixed frame through a rotating frame. When the cabin rotates relative to the tower in yaw, the rotating frame will rotate relative to the fixed frame driven by the cabin, so that the cooling pipe can be spirally set on the rotating frame or can be detached from the rotating frame, thereby enabling the cooling pipe to adapt to the yaw rotation of the cabin relative to the tower, avoiding excessive twisting or even tearing of the cooling pipe, thereby avoiding cooling pipe failure, allowing the cooling liquid in the cabin and the tower to communicate with each other, improving the reliability of the use of the cooling pipe, and thus improving the reliability of the operation of the wind turbine generator set. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or other objects and advantages of the present disclosure will become more apparent through the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0020] Figure 1 A structural diagram of a cooling pipe support device provided for an exemplary embodiment of the present disclosure.

[0021] Figure 2 for Figure 1 A longitudinal section of the cooling pipe support device in FIG.

[0022] Figure 3 for Figure 2 A longitudinal section of the cooling pipe support device with the protective cover removed.

[0023] Figure 4 for Figure 1 Structural diagram of the protective cover.

[0024] Figure 5 A structural diagram of a cooling pipe support device provided for another exemplary embodiment of the present disclosure.

[0025] Description of reference numerals:

[0026] 1. Rotating frame; 2. Fixed frame;

[0027] 3. Top platform; 4. Protective cover;

[0028] 5. Cooling pipeline; 6. Bearing;

[0029] 7. Guide part; 21. Outer ring of the frame;

[0030] 22. A first support member; 23. A second support member;

[0031] 41. Top through hole; 42. Cooling pipe through hole. DETAILED DESCRIPTION

[0032] Example embodiments will now be described more fully with reference to the accompanying drawings. However, it should not be understood that the implementation of the present disclosure is limited to the embodiments set forth herein. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted.

[0033] Reference Figures 1 to 3 In one aspect, the present disclosure provides a cooling pipeline support device, which is applicable to a wind turbine generator set. Specifically, the wind turbine generator set includes a tower, a nacelle connected to the top of the tower, and a liquid cooling system, wherein the liquid cooling system is used to transport cooling liquid from the tower to the nacelle, and / or from the nacelle to the tower, so as to cool the wind turbine generator set.

[0034] During the operation of the wind turbine, the nacelle can yaw relative to the tower to adapt to the real-time changes in wind speed and direction. In order to prevent the cooling pipe 5 used to transport the coolant from being stretched and torn during the yaw of the nacelle relative to the tower, the length of the cooling pipe 5 is not less than the length required for the maximum yaw of the nacelle.

[0035] The wind turbine generator set disclosed in the present invention also includes a cooling pipeline support device for supporting the cooling pipeline 5 to prevent the cooling pipeline 5 from being entangled with the yaw twist cable of the wind turbine generator set, thereby improving the operating reliability of the yaw system and thus improving the operating reliability of the wind turbine generator set.

[0036] Specifically, the cooling pipeline support device includes a fixed frame 2 and a rotating frame 1, wherein the fixed frame 2 is used to be connected to the tower, and the fixed frame 2 has a supporting surface for supporting the cooling pipeline 5. The rotating frame 1 is used to be connected to the nacelle, and the rotating frame 1 is rotatably arranged at the central position of the fixed frame 2, and the rotating frame 1 extends in the axial direction thereof and exceeds the supporting surface by a predetermined distance, so that the cooling pipeline 5 can be spirally arranged on the outer peripheral wall of the rotating frame 1.

[0037] In order to prevent the cooling pipeline 5 from being entangled with the yaw twist cable, the cooling pipeline support device includes a rotating frame 1, and the cooling pipeline 5 can be spirally arranged on the outer peripheral wall of the rotating frame 1. Under normal circumstances, the number of turns of the cooling pipeline 5 spirally arranged on the rotating frame 1 is relatively small. When the rotating frame 1 rotates around the first direction, the number of turns of the cooling pipeline 5 spirally arranged on the rotating frame 1 gradually increases, that is, in this process, the cooling pipeline 5 is gradually further spirally arranged on the rotating frame 1. As the rotating frame 1 rotates, the number of turns of the cooling pipeline 5 spirally arranged on the rotating frame 1 increases, thereby preventing the cooling pipeline 5 from being excessively twisted or even torn, thereby avoiding cooling pipeline failure and improving the reliability of the cooling pipeline 5.

[0038] When the rotating frame 1 rotates in a second direction, which may be opposite to the first direction, part of the cooling pipeline 5 spirally arranged on the rotating frame 1 will gradually detach from the rotating frame 1, so that the number of turns of the cooling pipeline 5 spirally arranged on the rotating frame 1 gradually decreases.

[0039] In this way, the rotating frame 1 is rotatably connected to the fixed frame 2. When the cabin rotates in yaw relative to the tower, the rotating frame 1 will rotate relative to the fixed frame 2 driven by the cabin, so that the cooling pipeline 5 can be spirally set on the rotating frame 1 or can be detached from the rotating frame 1, so that the cooling pipeline 5 can adapt to the yaw rotation of the cabin relative to the tower, avoiding excessive twisting or even tearing of the cooling pipeline 5, thereby avoiding cooling pipeline failure, improving the reliability of the use of the cooling pipeline 5, and thus improving the reliability of the operation of the wind turbine generator set.

[0040] Reference Figures 1 to 3 A top platform 3 is provided on the top of the tower, and the top platform 3 is fixed to the inner cavity of the tower. The cooling pipe supporting device is connected to the top platform 3 to support part of the cooling pipe located above the top platform 3, especially for supporting the cooling pipe 5 at the connection between the tower and the cabin. Optionally, the fixing frame 2 is connected above the top platform 3, but not limited to this. The fixing frame 2 can also be connected to the side wall of the tower as needed (not shown in the figure).

[0041] During the operation of the wind turbine generator set, the nacelle can yaw to adapt to different wind speeds or wind directions. In order to prevent the cooling pipeline 5 from rotating or entangled and causing the cooling pipeline 5 to fail, in this embodiment, the cooling pipeline support device is arranged near the connection between the tower and the nacelle. During the yaw rotation of the nacelle, the cooling pipeline 5 can be spirally arranged on the cooling pipeline support device or detached from the cooling pipeline support device to prevent the cooling pipeline 5 from being entangled with the yaw twist cable, thereby causing the cooling pipeline 5 to be excessively twisted or even torn, thereby avoiding the failure of the cooling pipeline 5 and improving the reliability of the use of the cooling pipeline 5. In addition, during the yaw rotation of the nacelle, the cooling pipeline 5 can be supported on the cooling pipeline support device, so that the cooling pipeline can be in a natural stress state, avoiding stretching and tearing due to the cooling pipeline's own gravity, thereby improving the service life of the cooling pipeline.

[0042] Furthermore, the cooling pipeline support device further includes a guide portion 7 for guiding the cooling pipeline 5 to be spirally arranged on the rotating frame 1 from the fixed frame 2, and the guide portion 7 is spirally arranged on the outer peripheral wall of the rotating frame 1 along the axial direction of the rotating frame 1. In this embodiment, the guide portion 7 is used to guide the cooling pipeline 5 to be regularly spirally arranged on the rotating frame 1, so as to avoid the cooling pipeline 5 being spirally arranged in multiple layers along the radial direction of the rotating frame 1, and to avoid the cooling pipeline 5 being unsmooth when being separated from the rotating frame 1, thereby further improving the reliability of the cooling pipeline support device.

[0043] As an example, in this embodiment, the guide portion 7 is arranged along the axial direction of the rotating frame 1 close to the supporting surface of the fixed frame 1, so that the cooling pipeline 5 on the supporting surface can be transitioned through the guide portion 7 and spirally arranged on the rotating frame 1, or the cooling pipeline 5 on the rotating frame 1 is transitioned through the guide portion 7 and separated from the rotating frame 1 and then piled on the supporting surface of the fixed frame 2, thereby avoiding excessive stretching of the cooling pipeline 5 when moving from the rotating frame 1 to the fixed frame 2, or from the fixed frame 2 to the rotating frame 1, thereby improving the reliability of the cooling pipeline 5.

[0044] Furthermore, the guide portion 7 is spirally arranged on the rotating frame 1 for one circle, so as to reserve a large space above the guide portion 7 for winding the rotating frame 1. As an example, the guide portion 7 is generally in the form of a spiral ring extending radially outward along the radial direction of the rotating frame 1, and the inner ring edge of the spiral ring is connected to the rotating frame 1, but the invention is not limited thereto. In this embodiment, the inner ring edge of the spiral ring is fixed to the rotating frame 1 by a welding process, but the invention is not limited thereto. As required, the guide portion 7 can also be a groove (not shown) arranged on the rotating frame 1 and extending spirally along the axial direction of the rotating frame 1.

[0045] As an example, the rotating frame 1 is rotatably connected to the tower, for example but not limited to, the rotating frame 1 is rotatably connected to the top platform 3. Specifically, the top platform 3 is provided with a bearing 6, and the rotating frame 1 is rotatably connected to the top platform 3 through the bearing 6, but not limited to this. In order to reduce the weight of the cooling pipeline support device, the rotating frame 1 in this embodiment is a cylindrical shell, but not limited to this.

[0046] Continue to refer to Figures 1 to 3 The fixed frame 1 is used to support the cooling pipeline 5 to overcome the gravity of the cooling pipeline 5 and the gravity of the coolant in the cooling pipeline 5. The cooling pipeline 5 detached from the rotating frame 1 can fall on the supporting surface of the fixed frame 1, so that the cooling pipeline 5 can be in a natural stress state, avoiding stretching and tearing due to the gravity of the cooling pipeline 5 itself and the gravity of the coolant in the cooling pipeline 5, thereby improving the service life of the cooling pipeline 5.

[0047] Specifically, in this embodiment, the projection area of ​​the fixed frame 2 on the top platform 3 is larger than the projection area of ​​the rotating frame 1 on the top platform 3, and the rotating frame 1 is arranged at the central position of the fixed frame 2, so that the cooling pipes 5 detached from the rotating frame 1 in all directions can be stacked on the fixed frame 2, thereby further improving the reliability of the cooling pipe support device.

[0048] Continue to refer to Figure 2 and Figure 3 The support surface includes a first support surface, the fixed frame 2 includes a frame outer ring 21 and a first support member 22, the frame outer ring 21 is arranged outside the rotating frame 1 along the radial interval of the rotating frame 1, the first support member 22 extends from the frame outer ring 21 toward the rotating frame 1, and the first support surface is arranged on the first support member 22.

[0049] As an example, in this embodiment, the first support member 22 includes a first support rod, and a plurality of first support rods are arranged along the circumference of the frame body outer ring 21, and the first support surface is arranged on the plurality of first support rods. Optionally, the plurality of first support rods are arranged at equal angles along the circumference of the frame body outer ring 21, but the present invention is not limited thereto.

[0050] In this embodiment, the first support member 22 includes multiple first support rods, which reduce the material used for the fixed frame 2 compared to the circular disc-shaped structure that continuously extends from the outer ring 21 of the frame body to the rotating frame 1, thereby reducing the weight of the fixed frame 2. However, this is not limited to the above. The first support member 22 can also include a circular disc-shaped structure (not shown in the figure), and the outer edge of the circular disc-shaped structure is connected to the outer ring 21 of the frame body.

[0051] In order to enable the cooling pipeline 5 to move smoothly on the first support surface, the first support surface is a first conical surface extending obliquely upward from the outer ring 21 of the frame body toward the rotating frame 1, so that the cooling pipeline 5 arranged on the first support surface can move toward the outer ring 21 of the frame body under the action of its own gravity, avoiding the cooling pipeline 5 from being piled up at the same position, thereby further improving the reliability of the fixed frame 2. As an example, there is a first cone angle between the first cone surface and the horizontal plane, and the first cone angle is any value between 10°-45°, but is not limited thereto. In this embodiment, the first cone angle of 10° is used as an example for explanation, but is not limited thereto.

[0052] Continuing to refer to the drawings, the cooling pipeline 5 includes a first pipeline and a second pipeline, the cooling liquid in the first pipeline flows from the tower to the cabin, and the cooling liquid in the second pipeline flows from the cabin to the tower, wherein the first pipeline and the second pipeline are connected, one of the first pipeline and the second pipeline is used as a liquid supply pipeline, and the other is used as a return pipeline, so that the cooling liquid in the liquid cooling system circulates, but is not limited to this.

[0053] In order to prevent the first pipeline and the second pipeline from crossing and stacking and affecting the smoothness of the movement of the cooling pipeline 5, in this embodiment, the support surface further includes a second support surface, which is spaced apart from the first support surface in the axial direction, and the fixed frame 2 further includes a second support member 23, which extends from the outer ring 21 of the frame body toward the rotating frame 1, and the second support surface is arranged on the second support member 23. As an example, one of the first pipeline and the second pipeline can be placed on the first support surface, and the other can be placed on the second support surface, but it is not limited thereto.

[0054] In order to enable the cooling pipeline 5 to move smoothly on the second support surface, the second support surface is a second conical surface extending obliquely upward from the outer ring 21 of the frame body toward the rotating frame 1. In this way, the cooling pipeline 5 arranged on the second support surface can move toward the outer ring 21 of the frame body under the action of its own gravity, avoiding the cooling pipeline 5 from stacking at the same position, thereby further improving the reliability of the fixed frame 2. As an example, there is a second cone angle between the second cone surface and the horizontal plane, and the second cone angle is any value between 10°-45°, but is not limited to this. In this embodiment, the second cone angle of 10° is used as an example for explanation, but is not limited to this.

[0055] As an example, the second support member 23 includes a second support rod, and a plurality of second support rods are arranged along the circumference of the frame outer ring 21, and the second support surface is arranged on the plurality of second support rods. Optionally, the plurality of second support rods are arranged at equal angles along the circumference of the frame outer ring 21, but this is not limited thereto.

[0056] In order to further improve the load balance of the fixing frame 2, the first support rods and the second support rods are alternately arranged along the circumference of the frame outer ring 21. As an example, the angles between adjacent first support rods and second support rods are equal, but not limited thereto.

[0057] In order to improve the safety of the cooling pipeline support device, the cooling pipeline support device also includes a protective cover 4, which is sleeved on the outside of the rotating frame 1, and the space between the protective cover 4 and the rotating frame 1 is configured as an accommodating cavity for accommodating the cooling pipeline 5.

[0058] As an example, in this embodiment, the protective cover 4 is a shell structure, and the shell structure cover is arranged outside the rotating frame 1 to prevent foreign objects from contacting the rotating frame 1 and being entangled on the rotating frame 1, thereby improving the safety of the cooling pipeline support device. Optionally, the protective cover 4 is connected to the fixed frame 2. During the operation of the wind turbine generator set, the protective cover 4 remains stationary relative to the fixed frame 2, and the rotating frame 1, the cooling pipeline 5, the guide part 7 and other moving parts can be covered in the protective cover 4 to prevent operators or foreign objects from accidentally contacting the above-mentioned moving parts, thereby improving the safety of the cooling pipeline support device. However, this is not limited to this. As needed, the protective cover 4 can also be connected to the rotating frame 1 to rotate with the rotating frame 1.

[0059] In this embodiment, a top through hole 41 for the yaw twist cable to pass through is provided at the top of the protective cover 4, the yaw twist cable extends from the tower to the nacelle, and the cooling pipeline 5 is arranged at intervals on the outside of the top through hole 41 along the radial direction of the rotating frame 1, but the present invention is not limited thereto. Such an arrangement allows the yaw twist cable and the cooling pipeline 5 to be arranged at intervals, thereby preventing the yaw twist cable and the cooling pipeline 5 from being entangled during the yaw rotation of the nacelle.

[0060] Specifically, a twist cable through hole for the yaw twist cable to pass through is provided at the top of the turret 1, and the yaw twist cable extends from the tower to the nacelle through the twist cable through hole, and when the turret 1 rotates with the nacelle, the yaw twist cable may not rotate with the turret 1. Optionally, the center line of the twist cable through hole coincides with the center axis of the turret 1, but is not limited thereto.

[0061] The cooling pipeline 5 is arranged at intervals along the radial direction of the rotating frame 1 outside the twist cable through hole, so that the cooling pipeline 5 and the yaw twist cable are arranged at intervals along the radial direction of the rotating frame 1, thereby preventing the cooling pipeline 5 and the yaw twist cable from being entangled.

[0062] Further, refer to Figure 4 The top of the protective cover 4 is provided with a top through hole 41 for the yaw twist cable to pass through, and the yaw twist cable extends from the tower to the nacelle through the top through hole 41. Optionally, the top through hole 41 and the twist cable through hole are arranged in an axial direction of the rotating frame 1, but the present invention is not limited thereto. In this embodiment, the rotating frame 1 is passed through the top through hole 41, but the present invention is not limited thereto.

[0063] A cooling pipe through hole 42 is also provided on the top of the protective cover 4 for the cooling pipe 5 to pass through. The cooling pipe through holes 42 are arranged at intervals on the outside of the top through hole 41 along the radial direction of the rotating frame 1. Figure 4 shown.

[0064] In order to reduce the material used for the protective cover 4, thereby reducing the manufacturing cost of the cooling pipeline support device and reducing the weight of the cooling pipeline support device, the protective cover 4 can also be made of a frame structure. Figure 5 Give a detailed description in.

[0065] Reference Figure 5 ,and Figure 1 The difference between the cooling pipe support device and the cooling pipe support device is that in order to prevent the cooling pipes 5 stacked on the fixed frame 2 from scattering outside the fixed frame 2, the outer ring 21 of the frame body in this embodiment extends along the axial direction of the rotating frame 1 and exceeds the first support member 22 by a predetermined distance, so that the outer ring 21 of the frame body can be used as an edge guard for the fixed frame 2, but it is not limited to this.

[0066] In this embodiment, the frame outer ring 21 is a circular ring frame, the first support rod and the second support rod are spaced apart and arranged in parallel along the axial direction of the rotating frame 1, but the present invention is not limited thereto.

[0067] In addition, in this embodiment, the protective cover 4 is composed of a frame structure to reduce the weight of the cooling pipeline support device, and the protective cover 4 is fixed to the fixed frame 2. Specifically, the two ends of the first support member 22 are respectively connected to the outer ring 21 of the frame body and the protective cover 4 by fasteners or welding processes, for example but not limited to. The two ends of the second support member 23 are respectively connected to the outer ring 21 of the frame body and the protective cover 4 by fasteners or welding processes, for example but not limited to. Optionally, in this embodiment, the first support member 22 is arranged in parallel above the second support member 23, but is not limited to this.

[0068] The cooling pipeline support device disclosed in the present invention includes a rotating frame 1 and a fixed frame 2. The rotating frame 1 can rotate relative to the fixed frame 2, so that the cooling pipeline 5 can be spirally arranged on the outer peripheral wall of the rotating frame 1. As the rotating frame 1 rotates, when the rotating frame 1 rotates around a first direction, the number of turns of the cooling pipeline 5 spirally arranged on the rotating frame 1 increases, avoiding excessive twisting or even tearing of the cooling pipeline 5, thereby avoiding cooling pipeline failure and improving the reliability of the use of the cooling pipeline 5. When the rotating frame 1 rotates around a second direction, the first direction and the second direction are opposite, and the number of turns of the cooling pipeline 5 spirally arranged on the rotating frame 1 gradually decreases. The cooling pipeline 5 detached from the rotating frame 1 is piled on the supporting surface of the fixed frame 2 under the action of gravity, so that the cooling pipeline 5 can be in a natural stress state, avoiding stretching and tearing caused by the weight of the cooling pipeline 5 itself and the gravity of the coolant in the cooling pipeline 5, thereby improving the service life of the cooling pipeline 5. The support surface is set as a conical surface. When the rotating frame 1 rotates and the cooling pipeline 5 is separated from the rotating frame 1, the cooling pipeline 5 will move toward the outer ring 21 of the frame under the action of its own weight and the weight of the coolant in the cooling pipeline 5, so as to prevent the cooling pipeline 5 from being concentrated and falling. The outer ring 21 of the frame extends along the axial direction of the rotating frame 1 and exceeds the first support surface of the first support member 22 by a predetermined distance, so as to prevent the cooling pipeline 5 from being scattered outside the outer ring 21 of the frame, and further improve the reliability of the cooling pipeline support device. The protective cover 4 is sleeved on the outside of the rotating frame 1 to prevent foreign debris from contacting the rotating frame 1 and being entangled on the rotating frame 1, thereby improving the safety of the cooling pipeline support device.

[0069] On the other hand, the present disclosure provides a liquid cooling system, which includes a cooling pipeline 5 and a cooling pipeline supporting device as described above, and the liquid cooling system is used to transport the cooling liquid from the tower to the cabin, and / or from the cabin to the tower, and part of the cooling pipeline 5 can be spirally arranged on the outer peripheral wall of the rotating frame 1 and / or part of the cooling pipeline 5 is supported on the supporting surface of the fixed frame 2.

[0070] On the other hand, the present disclosure provides a wind turbine generator set, which includes a tower, a nacelle arranged on the top of the tower, and a liquid cooling system as described above, wherein a fixed frame 2 is connected to the tower, a rotating frame 1 is connected to the nacelle, and the liquid cooling system is used to transport the cooling liquid from the tower to the nacelle, and / or from the nacelle to the tower.

[0071] In the description of the present disclosure, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do 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 should not be understood as a limitation on the present disclosure.

[0072] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present disclosure, unless otherwise specified, "plurality" means two or more.

[0073] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0074] The features, structures or characteristics described in the present disclosure may be combined in one or more embodiments in any suitable manner. In the above description, many specific details are provided to provide a full understanding of the embodiments of the present disclosure. However, those skilled in the art will appreciate that the technical solutions of the present disclosure may be practiced without one or more of the specific details, or other methods, components, materials, etc. may be adopted. In other cases, known structures, materials or operations are not shown or described in detail to avoid blurring the various aspects of the present disclosure.

Claims

1. A cooling pipe support device, characterized in that: Applicable to wind turbine generator sets, the cooling pipeline support device comprises: A fixing frame (2) for being connected to a tower frame, wherein the fixing frame (2) has a supporting surface for supporting a cooling pipeline (5); A rotating frame (1) is used to be connected to a cabin, the rotating frame (1) is rotatably arranged at the central position of the fixed frame (2), and the rotating frame (1) extends in the axial direction thereof and exceeds the supporting surface by a predetermined distance, so that the cooling pipeline (5) can be spirally arranged on the outer peripheral wall of the rotating frame (1).

2. The cooling pipe support device according to claim 1, characterized in that: The cooling pipeline support device also includes a guide portion (7) for guiding the cooling pipeline (5) to be spirally arranged from the fixed frame (2) to the rotating frame (1), and the guide portion (7) is spirally arranged on the outer peripheral wall of the rotating frame (1) along the axial direction of the rotating frame (1).

3. The cooling pipe support device according to claim 1, characterized in that: The support surface comprises a first support surface, the fixed frame (2) comprises a frame body outer ring (21) and a first support member (22), the frame body outer ring (21) is arranged at intervals on the radial outside of the rotating frame (1), the first support member (22) extends from the frame body outer ring (21) toward the rotating frame (1), and the first support surface is arranged on the first support member (22).

4. The cooling pipe support device according to claim 3, characterized in that: The support surface also includes a second support surface, the second support surface is spaced apart from the first support surface in the axial direction, the fixed frame (2) also includes a second support member (23), the second support member (23) extends from the frame body outer ring (21) toward the rotating frame (1), and the second support surface is arranged on the second support member (23).

5. The cooling pipe support device according to claim 4, characterized in that: The first support member (22) comprises a plurality of first support rods, the second support member comprises a plurality of second support rods, and the first support rods and the second support rods are alternately arranged along the circumference of the rotating frame (1); or, The first support member (22) comprises a plurality of first support rods, the second support member comprises a plurality of second support rods, the first support rods are spaced apart from the second support rods along the axial direction of the rotating frame (1), and the first support rods and the second support rods are arranged in parallel.

6. The cooling pipe support device according to claim 4, characterized in that: The first supporting surface is a first conical surface extending obliquely upward from the outer ring (21) of the frame body toward the rotating frame (1), and / or The second supporting surface is a second conical surface extending obliquely upward from the frame body outer ring (21) toward the rotating frame (1).

7. The cooling pipe support device according to claim 4, characterized in that: The first supporting surface is a first conical surface extending obliquely upward from the outer ring (21) of the frame body toward the rotating frame (1), and a first conical angle is formed between the first conical surface and the horizontal plane, and the first conical angle is any value between 10° and 45°; and / or, The second supporting surface is a second conical surface extending obliquely upward from the frame body outer ring (21) toward the rotating frame (1), and a second conical angle is formed between the second conical surface and the horizontal plane, and the second conical angle is any value between 10° and 45°.

8. The cooling pipe support device according to any one of claims 1 to 7, characterized in that: The cooling pipeline support device further comprises a protective cover (4), the protective cover (4) being sleeved on the outside of the rotating frame (1), and the space between the protective cover (4) and the rotating frame (1) being configured as a receiving chamber for receiving the cooling pipeline (5).

9. The cooling pipe support device according to claim 8, characterized in that: The protective cover (4) is connected to one of the fixed frame (2) and the rotating frame (1).

10. The cooling pipe support device according to claim 8, characterized in that: A top through hole (41) for the yaw twist cable to pass through is provided at the top of the protective cover (4), and the cooling pipeline (5) is arranged at intervals on the outside of the top through hole (41) along the radial direction of the rotating frame (1); and / or, The top of the rotating frame (1) is provided with a twist cable through hole for the yaw twist cable to pass through, and the cooling pipeline (5) is arranged at intervals on the outside of the twist cable through hole along the radial direction of the rotating frame (1).

11. A liquid cooling system, characterized in that: The liquid cooling system comprises a cooling pipeline (5) and a cooling pipeline supporting device as described in any one of claims 1 to 10, wherein the liquid cooling system is used to transport cooling liquid from the tower to the nacelle, and / or from the nacelle to the tower, and part of the cooling pipeline (5) can be spirally arranged on the outer peripheral wall of the rotating frame (1) and / or part of the cooling pipeline (5) is spirally supported on the supporting surface of the fixed frame (2).

12. A wind turbine generator set, characterized in that: The wind turbine generator set comprises a tower, a nacelle arranged on the top of the tower, and a liquid cooling system as claimed in claim 11, wherein the fixed frame (2) is connected to the tower, the rotating frame (1) is connected to the nacelle, and the liquid cooling system is used to transport cooling liquid from the tower to the nacelle, and / or from the nacelle to the tower.

13. The wind turbine generator set according to claim 12, characterized in that: A top platform (3) is provided on the top of the tower, and the rotating frame (1) is rotatably connected to the top platform (3) via a bearing (6).

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