Fluid slip ring connecting assembly, fluid slip ring assembly and wind generating set

Abstract

The utility model provides a fluid slip ring connecting assembly, a fluid slip ring assembly and a wind generating set. The fluid slip ring connecting assembly comprises a first connecting support and a second connecting support, the first end of the first connecting support is used for being connected with a rotor component of a fluid slip ring, and the second end of the first connecting support is used for being connected with a rotating part of the wind generating set. The first end of the second connecting support is used for being connected with a rotor component of the fluid sliding ring, and the second end of the second connecting support is used for being connected with a rotating part of the wind generating set. According to the fluid slip ring connecting assembly, the connection reliability between the fluid slip ring and the rotating part of the wind generating set can be improved, and the running safety of the wind generating set is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wind power generation, and more particularly, to a fluid slip ring connecting assembly, a fluid slip ring assembly and a wind turbine generator system. BACKGROUND

[0002] With the continuous increase of single machine capacity of wind turbine generators, conventional air cooling has been difficult to meet the heat dissipation needs of the units. In the prior art, more and more units have adopted fluid cooling, and attempts have been made to use fluid slip rings to solve the fluid transmission problem at the connection between the fixed parts and the rotating parts (for example, the yaw position) of the wind turbine generator. However, how to realize the connection between the fluid slip ring and the rotating part of the wind turbine generator is still a technical problem. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the purpose of the present application is to provide a fluid slip ring connecting assembly and a wind turbine generator system to solve the connection problem between the fluid slip ring and the rotating part of the wind turbine generator.

[0004] According to an aspect of the present application, a fluid slip ring connecting assembly is provided, which comprises: a first connecting support, a first end of the first connecting support being used for connecting with a rotor part of a fluid slip ring, and a second end of the first connecting support being used for connecting with a rotating part of a wind turbine generator system; and a second connecting support, a first end of the second connecting support being used for connecting with the rotor part of the fluid slip ring, and a second end of the second connecting support being used for connecting with the rotating part of the wind turbine generator system.

[0005] According to an aspect of the present application, the first connecting support comprises a first horizontal connecting frame and a first vertical connecting frame, a first end of the first horizontal connecting frame being used for connecting with a first side of the rotor part of the fluid slip ring, and a first end of the first vertical connecting frame being connected with a second end of the first horizontal connecting frame, a second end of the first vertical connecting frame being used for connecting with the rotating part of the wind turbine generator system, the second connecting support comprises a second horizontal connecting frame and a second vertical connecting frame, a first end of the second horizontal connecting frame being used for connecting with a second side of the rotor part of the fluid slip ring, and a first end of the second vertical connecting frame being connected with a second end of the second horizontal connecting frame, a second end of the second vertical connecting frame being used for connecting with the rotating part of the wind turbine generator system.

[0006] According to an aspect of the present application, a lower end of the first vertical connecting frame is movably connected with the second end of the first horizontal connecting frame, and a lower end of the second vertical connecting frame is movably connected with the second end of the second horizontal connecting frame.

[0007] According to an aspect of the present application, the second end of the first transverse connecting frame is formed with a first insertion hole, the lower end of the first vertical connecting frame is inserted into the first insertion hole, the second end of the second transverse connecting frame is formed with a second insertion hole, the lower end of the second vertical connecting frame is inserted into the second insertion hole, and the first insertion hole and the second insertion hole are both waist-shaped holes extending along the radial direction of the fluid slip ring.

[0008] According to an aspect of the present application, the first transverse connecting frame and the second transverse connecting frame are capable of being connected on opposite sides of the fluid slip ring, so that the first connecting bracket and the second connecting bracket are capable of being symmetrically arranged about the fluid slip ring.

[0009] According to an aspect of the present application, the slip ring connecting assembly further comprises: a plurality of first medium conveying pipes, the first end of each of the first medium conveying pipes being used for being connected with the cooling medium outflow port of the fluid slip ring, and the second end of each of the first medium conveying pipes being connected to the first connecting bracket or being connected to the rotating part of the wind turbine generator system; and a plurality of second medium conveying pipes, the first end of each of the second medium conveying pipes being used for being connected with the cooling medium return port of the fluid slip ring, and the second end of each of the second medium conveying pipes being connected to the second connecting bracket or being connected to the rotating part of the wind turbine generator system.

[0010] According to an aspect of the present application, the slip ring connecting assembly further comprises a pipe shunt device, the pipe shunt device comprising a first pipe shunt device and a second pipe shunt device, the second end of each of the plurality of first medium conveying pipes being in communication with the first pipe shunt device, and the second end of each of the plurality of second medium conveying pipes being in communication with the second pipe shunt device.

[0011] According to an aspect of the present application, the first pipe shunt device comprises a first converging cavity, a plurality of first converging inlets in communication with the first converging cavity, and at least one first converging outlet in communication with the first converging cavity, each of the plurality of first medium conveying pipes being connected with a corresponding one of the plurality of first converging inlets, the second pipe shunt device comprises a second converging cavity, at least one second converging inlet in communication with the second converging cavity, and a plurality of second converging outlets in communication with the second converging cavity, each of the plurality of second medium conveying pipes being connected with a corresponding one of the plurality of second converging outlets.

[0012] According to an aspect of the present application, the first pipe shunt device and the second pipe shunt device are separately arranged, the first pipe shunt device being mounted on the first vertical connecting frame or being capable of being mounted on the rotating part of the wind turbine generator system, and the second pipe shunt device being mounted on the second vertical connecting frame or being capable of being mounted on the rotating part of the wind turbine generator system.

[0013] According to an aspect of the present application, the first collecting cavity is formed in a tubular shape, and the first collecting inlets are arranged on one side of the first collecting cavity, or are oppositely arranged on two sides of the first collecting cavity in the radial direction of the first collecting cavity, or the first collecting cavity is formed in an annular shape, and the first collecting inlets are arranged at intervals around the circumference of the first collecting cavity; the second collecting cavity is formed in a tubular shape, and the second collecting outlets are arranged on one side of the second collecting cavity, or are oppositely arranged on two sides of the second collecting cavity in the radial direction of the second collecting cavity, or the second collecting cavity is formed in an annular shape, and the second collecting outlets are arranged at intervals around the circumference of the second collecting cavity.

[0014] According to an aspect of the present application, the first pipe shunt device and the second pipe shunt device are integrated into an integral structure, the first collecting cavity and the second collecting cavity are fluidically separated and connected to each other to form an annular or circular shape, and the first collecting inlets and the second collecting outlets are oppositely distributed in the circumferential direction.

[0015] According to another aspect of the present application, a fluid slip ring assembly is provided, which comprises a fluid slip ring and a fluid slip ring connecting assembly as described above, and the fluid slip ring connecting assembly is connected to the rotor component of the fluid slip ring.

[0016] According to another aspect of the present application, the fluid slip ring is annular, and a cable passage is formed in the middle part, a cooling medium outlet and a cooling medium return port are formed on the rotor component of the fluid slip ring, the second end of the first medium conveying pipe is connected to the cooling medium outlet of the fluid slip ring, the second end of the second medium conveying pipe is connected to the cooling medium return port of the fluid slip ring, and the first medium conveying pipes and the second medium conveying pipes are symmetrically arranged around the fluid slip ring and avoid the cable passage.

[0017] According to another aspect of the present application, the fluid slip ring assembly further comprises a fixing support, which is fixedly connected to the stator component of the fluid slip ring, and is used for mounting the fluid slip ring on the fixed component of the wind turbine generator system.

[0018] According to still another aspect of the present application, a wind turbine generator system is provided, which comprises a tower, a nacelle mounted on the top of the tower, and a yaw device mounted on the bottom of the nacelle, and further comprises a fluid slip ring assembly as described above, the connecting support is fixedly connected to the yaw device, and the stator component of the fluid slip ring is fixedly mounted inside the tower.

[0019] The fluid slip ring connection assembly according to the embodiment of the present application can improve the connection reliability between the fluid slip ring and the rotating part of the wind turbine generator set.

[0020] Additional aspects and / or advantages of the present general inventive concept will be set forth in part in the description which follows, and in part will be obvious from the description, or can be learned by practice of the present general inventive concept. BRIEF DESCRIPTION OF DRAWINGS

[0021] The above and other objects and features of the present application will become more apparent from the following description of embodiments taken in conjunction with the accompanying drawings, in which:

[0022] Figure 1 is a front view of a fluid slip ring connection assembly according to an embodiment of the present application;

[0023] Figure 2 is a top view of a fluid slip ring connection assembly according to an embodiment of the present application;

[0024] Figure 3 is a perspective view of a pipe shunt device according to an embodiment of the present application;

[0025] Figure 4 is a perspective view of a pipe shunt device according to another embodiment of the present application;

[0026] Figure 5 is a perspective view of a pipe shunt device according to still another embodiment of the present application.

[0027] BRIEF DESCRIPTION OF DRAWINGS

[0028] 100 - first connection support; 110 - first horizontal connection bracket; 120 - first vertical connection bracket;

[0029] 2101 - first insertion hole; 2101 - second insertion hole; 200 - second connection support;

[0030] 210 - second horizontal connection bracket; 220 - second vertical connection bracket; 300 - fluid slip ring;

[0031] 310 - rotor part; 320 - stator part; 330 - cooling medium outlet;

[0032] 340 - cooling medium return port; 400 - rotating part; 510 - first medium conveying pipe;

[0033] 520 - second medium conveying pipe; 610 - first pipe shunt device; 611 - first converging cavity;

[0034] 612 - first converging inlet; 613 - first converging outlet; 620 - second pipe shunt device;

[0035] 621 - second collecting cavity; 622 - second collecting outlet; 623 - second collecting inlet. DETAILED DESCRIPTION

[0036] The following detailed description is presented to aid in understanding the method, apparatus and / or system described herein. It is not intended to limit the method, apparatus and / or system described herein to the details described. Rather, it is intended to cover any modifications, variations, and equivalents that are within the scope of the present disclosure, as it is defined by the claims. For instance, the order of the operations described herein is merely an example and not limiting, and the operations can be changed, except for operations that must occur in a specific order, as will be evident to one of skill in the art upon review of the present disclosure. Furthermore, the description of features can be omitted for the sake of clarity and brevity.

[0037] The features described herein can be implemented in different forms and should not be construed as limited to the examples described herein. Rather, these examples are provided as a non-exhaustive list of a few of the many possible implementations of the method, apparatus and / or system described herein, as will be evident to one of skill in the art upon review of the present disclosure.

[0038] As used herein, the term “and / or” includes any one of the associated listed items, as well as any combination of any two or more of the associated listed items.

[0039] Although terms such as “first,” “second,” and “third” can be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, the element, component, region, layer or section referred to as the first element, the first component, the first region, the first layer or the first section in the examples described herein can also be referred to as the second element, the second component, the second region, the second layer or the second section without departing from the teachings of the examples.

[0040] In the description, when an element such as a layer, a region, or a substrate is referred to as being “on” another element, “connected to” or “coupled to” another element, it can be directly on the other element, directly connected to or coupled to the other element, or one or more other elements can be interposed therebetween. In contrast, when an element is referred to as being “directly on” another element, “directly connected to” or “directly coupled to” another element, there are no other elements interposed therebetween.

[0041] The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "includes," "including" and "has," "having" as used herein, are specifically intended to be construed as open-ended terms, i.e., the terms do not exclude additional elements or steps. The terms "multiple" and "plurality" mean any number, including two and more.

[0042] The orientation terms "upper", "lower", "top", "bottom", etc. used in the present application are defined based on the orientation of the product in the normal use state, unless otherwise specified.

[0043] Unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs when read in light of the present application. Unless otherwise expressly defined herein, terms such as, for example, "in" and "on" are to be construed as in their normal and customary sense, and are not to be construed as ideal or overly formalistic.

[0044] In the case of using a liquid cooling device to cool a wind turbine generator set, a large fluid flow is required, the fluid slip ring has a large volume and weight, the fluid slip ring has a large number of inlet and outlet interfaces, and the corresponding cooling medium conveying pipe road also has a large number of interfaces, and needs to be accurately installed between the rotating part and the fixed part of the wind turbine generator set, which has a large installation difficulty. If the connection structure of the cooling medium conveying pipe road and the fluid slip ring is unreliable, the fluid slip ring is prone to leakage during operation, which affects the safe operation of the wind turbine generator set.

[0045] Therefore, the present application provides a fluid slip ring connection assembly to realize reliable connection between the fluid slip ring and the rotating part of the wind turbine generator set.

[0046] Figure 1 is a front view of the fluid slip ring connection assembly according to the embodiment of the present application. Figure 2 is a top view of the fluid slip ring connection assembly according to the embodiment of the present application.

[0047] As Figure 1 and Figure 2As shown, the fluid slip ring connection assembly according to the embodiment of the present application comprises a first connection bracket 100 and a second connection bracket 200, a first end of the first connection bracket 100 is used to connect with a rotor component 310 of a fluid slip ring 300, a second end of the first connection bracket 100 is used to connect with a rotating part 400 of a wind turbine generator system, a first end of the second connection bracket 200 is used to connect with the rotor component 310 of the fluid slip ring 300, and a second end of the second connection bracket 200 is used to connect with the rotating part 400 of the wind turbine generator system.

[0048] According to the embodiment of the present application, the rotor component 310 of the fluid slip ring 300 is connected with the rotating part 400 of the wind turbine generator system through the first connection bracket 100 and the second connection bracket 200 respectively, so that the connection of the fluid slip ring 300 with the rotating part of the wind turbine generator system is more stable, and when one of the connection brackets fails (for example, breaks), the other connection bracket can still continue to work, ensuring the operation reliability of the cooling system.

[0049] According to one embodiment of the present application, the first connection bracket 100 and the second connection bracket 200 can be connected on opposite sides of the fluid slip ring 300 respectively, and the rotor component 310 of the fluid slip ring 300 is driven in a substantially symmetrical manner, so that the rotor component 310 is more symmetrically balanced in stress and the rotational motion is more stable.

[0050] According to one embodiment of the present application, the first connection bracket 100 comprises a first horizontal connecting frame 110 and a first vertical connecting frame 120, a first end of the first horizontal connecting frame 110 is used to connect with the rotor component 310 of the fluid slip ring 300, a first end of the first vertical connecting frame 120 is connected with a second end of the first horizontal connecting frame 110, and a second end of the first vertical connecting frame 120 is used to connect with the rotating part 400 of the wind turbine generator system. The second connection bracket 200 comprises a second horizontal connecting frame 210 and a second vertical connecting frame 220, a first end of the second horizontal connecting frame 210 is used to connect with the rotor component 310 of the fluid slip ring 300, a first end of the second vertical connecting frame 220 is connected with a second end of the second horizontal connecting frame 210, and a second end of the second vertical connecting frame 220 is used to connect with the rotating part 400 of the wind turbine generator system.

[0051] According to the embodiment of the present application, the lower end of the first vertical connecting frame 120 and the first horizontal connecting frame 110 can be fixedly connected or movably connected, and the lower end of the second vertical connecting frame 220 and the second horizontal connecting frame 210 can be fixedly connected or movably connected, so as to make the rotor component 310 of the fluid slip ring 300 rotate with the rotating part 400 of the wind turbine generator system.

[0052] Because the fluid slip ring 300 has a large volume, and there are many connecting components and pipelines, it is easy to cause the installation components to be misaligned or not centered with the rotating center of the rotating part of the wind turbine generator set. Therefore, during the rotation of the fluid slip ring 300, the connecting bracket connected between the fluid slip ring 300 and the rotating part 400 of the wind turbine generator set is prone to breakage. However, in an embodiment of the present application, the lower end of the first vertical connecting bracket 120 is movably connected to the first horizontal connecting bracket 110, and the lower end of the second vertical connecting bracket 220 is movably connected to the second horizontal connecting bracket 210, for example, by being hingedly connected, or by being inserted, etc., so that the vertical connecting bracket and the horizontal connecting bracket can be prevented from being damaged due to unbalanced local force, thereby preventing breakage, while transmitting the rotational driving force.

[0053] According to an embodiment of the present application, the second end of the first horizontal connecting bracket 110 is formed with a first insertion hole 1101, the lower end of the first vertical connecting bracket 120 is inserted into the first insertion hole 1101, the second end of the second horizontal connecting bracket 210 is formed with a second insertion hole 2101, and the lower end of the second vertical connecting bracket 220 is inserted into the second insertion hole 2101. The first insertion hole 1101 and the second insertion hole 2101 can be formed as a waist-shaped hole extending along the radial direction of the fluid slip ring 300. By inserting the lower end of the vertical connecting bracket into the insertion hole of the horizontal connecting bracket, the vertical connecting bracket has a certain range of movement, which prevents the connecting bracket from being damaged due to asynchronous rotation or misalignment of the structure, while ensuring that the rotational driving force can be transmitted.

[0054] According to an embodiment of the present application, the fluid slip ring connecting assembly further comprises a plurality of first medium conveying pipelines 510 and a plurality of second medium conveying pipelines 520 to realize the circulating flow of the cooling medium. A plurality of cooling medium outlet ports 330 and a plurality of cooling medium return ports 340 are formed on the rotor component 310, the first end of the first medium conveying pipeline 510 is used to connect with the cooling medium outlet port 330 of the fluid slip ring 300, the second end of the first medium conveying pipeline 510 is fixed on the first connecting bracket 100 or fixedly connected to the rotating part 400 of the wind turbine generator set and connected with the cooling pipeline inside the wind turbine generator set, for supplying the cooling medium into the wind turbine generator set. The first end of the second medium conveying pipeline 520 is used to connect with the cooling medium return port 340 of the fluid slip ring 300, and the second end of the second medium conveying pipeline 520 can be fixed on the second connecting bracket 200 or fixedly connected to the rotating part 400 of the wind turbine generator set and connected with the cooling pipeline inside the wind turbine generator set, for conveying the cooling medium cooled by the wind turbine generator set into the fluid slip ring 300.

[0055] According to the embodiment of the application, the stator part 320 of the fluid slip ring 300 is arranged outside the rotor part 310, and annular flow channels are formed between the radially inner side of the rotor part 310 and the radially inner side of the stator part 320, including a first annular flow channel and a second annular flow channel, which are separated from each other in the axial direction of the fluid slip ring and are not communicated with each other. The first annular flow channel serves as a liquid supply channel, and the second annular flow channel serves as a liquid return channel. The low-temperature cooling medium can be supplied into the first annular flow channel to cool the wind turbine generator set, and the cooling medium heated after cooling the wind turbine generator set can be returned to the second annular flow channel.

[0056] The first annular flow channel is communicated with the cooling medium outlet 330 and communicated with the first medium conveying pipe 510 through the cooling medium outlet 330, for supplying the low-temperature cooling medium in the first annular flow channel to the wind turbine generator set. The second annular flow channel is communicated with the cooling medium return port 340 and communicated with the second medium conveying pipe 520 through the cooling medium return port 340, for conveying the heated cooling medium to the heat sink. The cooling medium cooled in the heat sink can enter the first annular flow channel again under the action of the pump to perform the next cooling cycle.

[0057] As shown in Figure 2 , the plurality of cooling medium outlets 330 and the plurality of cooling medium return ports 340 are arranged at intervals in the circumferential direction of the rotor part 310. In order to avoid interference between the pipes, the plurality of cooling medium outlets 330 and the plurality of cooling medium return ports 340 are arranged on opposite sides of the fluid slip ring 300, respectively. Alternatively, the cooling medium outlets 330 and the cooling medium return ports 340 are the same in size and number, so that the flow rates of the media on both sides of the fluid slip ring 300 are uniform, the fluid slip ring 300 is balanced in force, and the rotation is stable.

[0058] In addition, fluid conveying interfaces can be arranged on the outer wall of the stator part 320 of the fluid slip ring 300 at positions corresponding to the first annular flow channel and the second annular flow channel, and are connected with the third fluid conveying pipe and the fourth fluid conveying pipe, respectively, to convey the low-temperature cooling medium to the first annular flow channel and convey the high-temperature cooling medium in the second annular flow channel to the heat sink, which will not be described in detail here.

[0059] As shown in Figure 1 and Figure 2As shown, the first lateral connecting frame 110 and the second lateral connecting frame 210 are connected at opposite sides of the fluid slip ring 300, so that the first connecting bracket 100 and the second connecting bracket 200 can be symmetrically arranged with respect to the fluid slip ring 300. In addition, through the first lateral connecting frame 110 and the second lateral connecting frame 210, the force arm length of the rotational moment exerted on the fluid slip ring 300 by the first vertical connecting frame 120 and the second vertical connecting frame 220 can be lengthened, so that the rotating part 400 of the wind turbine generator set is more easily rotated to drive the rotor component 310 of the fluid slip ring 300, avoiding the first connecting bracket 100 and the second connecting bracket 200 from being broken due to large force.

[0060] According to an embodiment of the present application, the fluid slip ring connecting assembly according to the embodiment of the present application further comprises a pipeline shunt device, the pipeline shunt device comprising a first pipeline shunt device 610 and a second pipeline shunt device 620, the second ends of the plurality of first medium conveying pipes 510 being in communication with the first pipeline shunt device 610, and the second ends of the plurality of second medium conveying pipes 520 being in communication with the second pipeline shunt device 620.

[0061] As shown in Figure 3 , Figure 4 , Figure 5 the first pipeline shunt device 610 comprises a first converging cavity 611, a plurality of first converging inlets 612 in communication with the first converging cavity 611, and at least one first converging outlet 613 in communication with the first converging cavity 612, the second ends of the plurality of first medium conveying pipes 510 being respectively connected to the plurality of first converging inlets 612, for converging the medium supplied from the plurality of first medium conveying pipes 510, and then conveying the medium to the wind turbine generator set through the first converging outlet 613.

[0062] As shown in Figure 3 , Figure 4 , Figure 5 the second pipeline shunt device 620 comprises a second converging cavity 621, at least one second converging inlet 623 in communication with the second converging cavity 621, and a plurality of second converging outlets 622 in communication with the second converging cavity 621, the second converging inlet 623 being in communication with the cooling pipe inside the wind turbine generator set, for receiving the warmed cooling medium. The second ends of the plurality of second medium conveying pipes 520 are respectively connected to the plurality of second converging outlets 622, for shunting the cooling medium flowing back from the wind turbine generator set to the plurality of second medium conveying pipes 520, so as to return the cooling medium to the second annular flow channel.

[0063] According to one embodiment of the present application, the first pipe shunt device 610 and the second pipe shunt device 620 can be provided in a split structure and mounted on the first connecting bracket 100 and the second connecting bracket 200 respectively, or directly mounted on the rotating part 400 (for example, the bridge of the yaw device) of the wind turbine generator.

[0064] The first pipe shunt device 610 can adopt various structures. As shown in Figure 3 , a plurality of first flow-in ports 612 are arranged on the same side of the first flow-in cavity 611, for example, all arranged on the lower side of the first flow-in cavity 611, to facilitate connection with the first medium conveying pipe 510. As shown in Figure 4 , a plurality of first flow-in ports 612 can be arranged on opposite sides of the first flow-in cavity 611. In addition, the first pipe shunt device can also adopt a circular structure, the first flow-in cavity 611 is formed as a circular cavity, a plurality of first flow-in ports 612 are located at one axial end of the circular cavity, and a first flow-out port 613 is located at the other axial end of the circular cavity. The structure of the first pipe shunt device 610 is not limited to this, as long as it can form N-in-1-out to realize the flow of cooling medium.

[0065] The second pipe shunt device 620 can also be configured as Figure 3 or Figure 4 structure. For example, as shown in Figure 3 , a plurality of second flow-out ports 622 are arranged on the same side of the second flow-in cavity 621, or as shown in Figure 4 , a plurality of second flow-out ports 622 are arranged on opposite sides of the second flow-in cavity 621. Similar to the first pipe shunt device 610, the second pipe shunt device can also adopt a circular structure, the second flow-in cavity 621 is formed as a circular cavity, a plurality of second flow-out ports 622 are located at one axial end of the circular cavity, and a second flow-in port 623 is located at the other axial end of the circular cavity. The structure of the second pipe shunt device 620 is not limited to this, as long as it can form 1-in-N-out to realize the flow and shunt of cooling medium, where N is the same as the number of cooling medium return ports of the fluid slip ring.

[0066] In accordance with one embodiment of the present application, the first pipe shunt device 610 and the second pipe shunt device 620 can be provided in an integrated structure. As shown in Figure 5As shown, the first pipe shunt device 610 and the second pipe shunt device 620 are integrated into one structure, the first and second flow converging cavities 611 and 621 are fluidically separated and connected to form a ring-shaped or circular flow converging cavity, the plurality of first flow converging inlets 612 and the plurality of second flow converging outlets 622 are located on one axial side of the flow converging cavity and oppositely distributed in the circumferential direction. The first flow converging outlet 613 and the second flow converging inlet 623 are located on the other axial side of the flow converging cavity and are separated from each other.

[0067] Although various structural examples of the pipe shunt device are described in combination with Figure 3 , Figure 4 and Figure 5 , the pipe shunt device of the embodiments of the present application is not limited thereto, and those skilled in the art can adjust the structure of the pipe shunt device according to the arrangement requirements and space size of the pipe.

[0068] According to another embodiment of the present application, a fluid slip ring assembly is provided, which comprises the fluid slip ring described above and the fluid slip ring connecting assembly described above, and the fluid slip ring connecting assembly is connected with the rotor component of the fluid slip ring.

[0069] According to one embodiment of the present application, the fluid slip ring 300 is ring-shaped, and a cable passage is formed in the middle part, and the plurality of first medium conveying pipes 510 and the plurality of second medium conveying pipes 520 are symmetrically arranged around the fluid slip ring 300 and avoid the cable passage.

[0070] According to one embodiment of the present application, the fluid slip ring assembly further comprises a fixing support, which is fixedly connected with the stator component 320 of the fluid slip ring 300, and is used for mounting the fluid slip ring 300 on a fixed component in the wind turbine generator system.

[0071] According to the embodiments of the present application, a wind turbine generator system is also provided, which comprises a tower, a nacelle mounted on the top of the tower, and a yaw device mounted on the bottom of the nacelle, and further comprises the fluid slip ring assembly described above.

[0072] According to the embodiments of the present application, the upper end of the first connecting support 100 and the upper end of the second connecting support 200 are fixedly connected with the yaw device, and the stator component of the fluid slip ring 300 is fixedly mounted inside the tower. A cable is also arranged inside the tower, which passes through the cable passage in the middle part of the fluid slip ring 300 and is connected with the electrical elements of the wind turbine generator system. The first medium conveying pipe 510 and the second medium conveying pipe 520 are arranged on both sides of the cable passage, respectively, and can avoid interference with the cable in the case of conveying a large amount of fluid at the yaw position of the wind turbine generator system.

[0073] Although the specific details of the embodiments of the present application have been described with reference to the accompanying drawings, the scope of protection of the present application is not limited by the description, and those skilled in the art can make corresponding modifications and variations without departing from the principles of the present application, and these modifications and variations will fall within the scope of protection of the present application.

Claims

1. A fluid slip ring connection assembly, characterized in that, The fluid slip ring connection assembly includes: A first connecting bracket (100) is provided, the first end of which is used to connect to the rotor component (310) of the fluid slip ring (300), and the second end of which is used to connect to the rotating part (400) of the wind turbine generator set. The second connecting bracket (200) has a first end for connecting to the rotor component (310) of the fluid slip ring (300) and a second end for connecting to the rotating part (400) of the wind turbine generator set.

2. The fluid slip ring connection assembly according to claim 1, characterized in that, The first connecting bracket (100) includes a first horizontal connecting bracket (110) and a first vertical connecting bracket (120). A first end of the first horizontal connecting bracket (110) is used to connect to a first side of the rotor component (310) of the fluid slip ring (300). A first end of the first vertical connecting bracket (120) is connected to a second end of the first horizontal connecting bracket (110). The second end of the first vertical connecting bracket (120) is used to connect to the rotating part (400) of the wind turbine generator set. The second connecting bracket (200) includes a second horizontal connecting bracket (210) and a second vertical connecting bracket (220). The first end of the second horizontal connecting bracket (210) is used to connect to the second side of the rotor component (310) of the fluid slip ring (300). The first end of the second vertical connecting bracket (220) is connected to the second end of the second horizontal connecting bracket (210). The second end of the second vertical connecting bracket (220) is used to connect to the rotating part (400) of the wind turbine generator set.

3. The fluid slip ring connection assembly according to claim 2, characterized in that, The lower end of the first vertical connecting frame (120) is movably connected to the second end of the first horizontal connecting frame (110), and the lower end of the second vertical connecting frame (220) is movably connected to the second end of the second horizontal connecting frame (210); and / or, The first transverse connecting bracket (110) and the second transverse connecting bracket (210) can be connected to opposite sides of the fluid slip ring (300), so that the first connecting bracket (100) and the second connecting bracket (200) can be symmetrically arranged about the fluid slip ring (300).

4. The fluid slip ring connection assembly according to claim 3, characterized in that, The second end of the first transverse connecting bracket (110) is formed with a first insertion hole (1101), and the lower end of the first vertical connecting bracket (120) is inserted into the first insertion hole (1101). The second end of the second transverse connecting bracket (210) is formed with a second insertion hole (2101), and the lower end of the second vertical connecting bracket (220) is inserted into the second insertion hole (2101). The first insertion hole (1101) and the second insertion hole (2101) are waist-shaped holes that extend radially along the fluid slip ring (300).

5. The fluid slip ring connection assembly according to any one of claims 2 to 4, characterized in that, The slip ring connection assembly further includes: Multiple first medium delivery pipes (510), the first end of the first medium delivery pipe (510) is used to connect to the cooling medium outlet (330) of the fluid slip ring (300), and the second end of the first medium delivery pipe (510) is connected to the first connecting bracket (100) or can be connected to the rotating part (400) of the wind turbine generator set; Multiple second medium delivery pipes (520), the first end of which is used to connect to the cooling medium return port (340) of the fluid slip ring (300), and the second end of which is connected to the second connecting bracket (200) or can be connected to the rotating part (400) of the wind turbine generator set.

6. The fluid slip ring connection assembly according to claim 5, characterized in that, The fluid slip ring connection assembly further includes a first pipeline diversion device (610) and a second pipeline diversion device (620). The second ends of a plurality of first medium conveying pipelines (510) are connected to the first pipeline diversion device (610), and the second ends of a plurality of second medium conveying pipelines (520) are connected to the second pipeline diversion device (620).

7. The fluid slip ring connection assembly according to claim 6, characterized in that, The first pipeline diversion device (610) includes a first manifold (611), a plurality of first manifold inlets (612) communicating with the first manifold (611), and at least one first manifold outlet (613) communicating with the first manifold (611). A plurality of the first medium conveying pipelines (510) are respectively connected to the plurality of first manifold inlets (612). The second pipeline diversion device (620) includes a second manifold (621), at least one second manifold inlet (623) communicating with the second manifold (621), and a plurality of second manifold outlets (622) communicating with the second manifold (621). A plurality of second medium conveying pipelines (520) are respectively connected to the plurality of second manifold outlets (622).

8. The fluid slip ring connection assembly according to claim 7, characterized in that, The first pipeline diversion device (610) and the second pipeline diversion device (620) are separately installed. The first pipeline diversion device (610) is installed on the first vertical connecting frame (120) or can be installed on the rotating part (400) of the wind turbine generator set. The second pipeline diversion device (620) is installed on the second vertical connecting frame (220) or can be installed on the rotating part (400) of the wind turbine generator set.

9. The fluid slip ring connection assembly according to claim 8, characterized in that, The first manifold (611) is formed in a tubular shape, and a plurality of first manifold inlets (612) are located on one side of the first manifold (611), or are arranged opposite to each other on both sides of the first manifold (611) in the radial direction, or the first manifold (611) is formed in an annular shape, and a plurality of first manifold inlets (612) are arranged circumferentially around the first manifold (611); The second manifold (621) is formed in a tubular shape, and a plurality of second manifold outlets (622) are located on one side of the second manifold (621), or the plurality of second manifold outlets (622) are arranged opposite each other on both sides of the second manifold (621) in the radial direction, or the second manifold (621) is formed in an annular shape, and a plurality of second manifold outlets (622) are arranged circumferentially around the second manifold (621).

10. The fluid slip ring connection assembly according to claim 7, characterized in that, The first pipeline diversion device (610) and the second pipeline diversion device (620) are integrated into a single structure. The first junction cavity (611) and the second junction cavity (621) are fluid-separated and interconnected to form an annular or circular cavity. A plurality of first junction inlets (612) and a plurality of second junction outlets (622) are distributed relative to each other in the circumferential direction.

11. A fluid slip ring assembly, characterized in that, The fluid slip ring assembly includes a fluid slip ring (300) and a fluid slip ring connection assembly as claimed in any one of claims 1-10, wherein the fluid slip ring (300) includes a rotor component (310) and a stator component (320) nested together, and the fluid slip ring connection assembly is connected to the rotor component (310).

12. A wind turbine generator set, characterized in that, The wind turbine generator set includes a tower, a nacelle installed on top of the tower, and a yaw device installed at the bottom of the nacelle. The wind turbine generator set also includes a fluid slip ring assembly as described in claim 11. The first connecting bracket (100) and the second connecting bracket (200) are fixedly connected to the yaw device, and the stator component (320) of the fluid slip ring (300) is fixedly installed inside the tower.

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