Fixed bypass, assembly, fan foundation and floating fan

Abstract

The utility model provides a fixed bypass, an assembly, a fan foundation and a floating fan. The fixed bypass and the connecting joint are respectively arranged on the floating device or the connecting device, a filling cavity and at least one communicating port for communicating the filling cavity with the outside are formed in the fixed bypass, and a fixed part is further arranged on the inner peripheral wall of the filling cavity of the fixed bypass; the fixed part extends along the longitudinal direction of the fixed bypass and / or the circumferential direction of the fixed bypass; a clamping part is arranged on the peripheral wall of the connecting joint and extends in the longitudinal direction and / or the circumferential direction of the connecting joint. When the floating device and the connecting device are not assembled, the floating device and the connecting device are transported to a wharf in an on-land bulk transportation mode and then are connected and fixed through the fixing parts and the corresponding clamping parts, the filling cavities are filled with filling media through the communicating openings after fixing, and further reinforcement is achieved. According to the arrangement, the transportation efficiency is improved, the transportation cost is reduced, and meanwhile assembling is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power generation, and particularly relates to a fixed bypass, a component, a wind turbine foundation and a floating wind turbine. Background Art

[0002] At present, the mainstream designed floating wind turbine foundation generally includes a plurality of floating devices and connecting devices. The connecting devices are fixed between the floating devices by welding to form an overall structure of the surrounding floating wind turbine foundation, and then the wind turbine tower is fixed on the floating wind turbine foundation. However, with the large-scale development of the floating wind turbine foundation, due to the large amount of labor generated by manual welding, this welding process is generally operated by means of large-scale automated equipment in an automated welding factory area, and after welding and assembly, it is towed to the dock by wet towing or dry towing. However, whether wet towing or dry towing is used, generally only one floating wind turbine foundation can be towed at a time. This results in low transportation efficiency and high transportation costs in the case of batch setting of floating wind turbines in a specific wind farm. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the defects of low transportation efficiency and high transportation cost when transporting the welded and assembled floating wind turbine foundation to the dock in the prior art, and to provide a fixed bypass, a component, a wind turbine foundation and a floating wind turbine.

[0004] The utility model solves the above technical problem through the following technical solutions:

[0005] A fixed bypass is used to be arranged on a floating device or a connecting device. The inside of the fixed bypass has a filling cavity and at least one communication port communicating the filling cavity with the outside; a fixing part is further arranged on the inner peripheral wall of the filling cavity of the fixed bypass, and the fixing part extends along the longitudinal direction and / or the circumferential direction of the fixed bypass.

[0006] In this solution, when the floating device or the connecting device with the fixed bypass is not assembled, it can be first transported to the dock by means of overland bulk transportation. After being transported to the dock, the fixing part on the fixed bypass is used to connect and fix with the corresponding other devices, and after fixing, a filling medium can be filled into the filling cavity through the communication port to achieve further reinforcement; through this kind of setting, on the one hand, the transportation efficiency can be greatly improved, and the transportation cost is also reduced accordingly. On the other hand, compared with the welding connection method, this method can directly realize the connection and fixation between devices through the structural design of the fixed bypass, and the assembly is also simpler and more convenient.

[0007] A connecting joint is used to be arranged on a floating device or a connecting device. A clamping portion is arranged on the peripheral wall of the connecting joint, and the clamping portion extends along the longitudinal direction and / or the circumferential direction of the connecting joint.

[0008] In this solution, when the floating device or the connecting device with the connecting joint is not assembled, it can be first transported to the dock by land bulk transportation. After being transported to the dock, the clamping portion of the connecting joint can be used to connect and fix it with the corresponding other device. Through this setting, on the one hand, the transportation efficiency can be greatly improved, and the transportation cost is also reduced accordingly. On the other hand, compared with the welding connection method, this method can directly realize the connection and fixation between devices through the structural design of the connecting joint, and the assembly is also simpler and more convenient.

[0009] An assembly includes a fixed bypass and a connecting joint. The fixed bypass and the connecting joint are respectively arranged on a floating device and a connecting device; wherein,

[0010] The interior of the fixed bypass has a filling cavity and at least one communication port communicating the filling cavity with the outside. The fixed bypass is also provided with a fixing portion on the inner peripheral wall of the filling cavity, and the fixing portion extends along the longitudinal direction and / or the circumferential direction of the fixed bypass;

[0011] A clamping portion is arranged on the peripheral wall of the connecting joint, and the clamping portion extends along the longitudinal direction and / or the circumferential direction of the connecting joint;

[0012] The clamping portion of the connecting joint and the fixing portion of the fixed bypass are in mutual abutment in at least one direction of the longitudinal direction and / or the circumferential direction, and the position of the mutual abutment is inside the filling cavity and communicates with the outside through the communication port.

[0013] In this solution, the assembly includes a fixed bypass and a connecting joint. When the floating device and the connecting device with the fixed bypass and the connecting joint are not assembled, they can be first transported to the dock by land bulk transportation. After being transported to the dock, the cooperation between the fixing portion and the clamping portion can be used to make them abut against each other in at least one direction of the longitudinal direction and the axial direction to achieve preliminary fixation, and the position of the mutual abutment is inside the filling cavity and communicates with the outside through the communication port. Thus, a filling medium can be filled into the filling cavity through the communication port to achieve further reinforcement. Through this setting, the transportation efficiency of the floating device and the connecting device before assembly can be improved, and the transportation cost is also reduced accordingly. On the other hand, compared with the welding connection method, this method can realize the connection and fixation between the floating device and the connecting device, and the assembly is also simpler and more convenient.

[0014] A wind turbine foundation includes a floating device and a connecting device, and a fixed bypass and a connecting joint are respectively arranged on the floating device and the connecting device; wherein,

[0015] The interior of the fixed bypass has a filling cavity and at least one communication port communicating the filling cavity with the outside. The fixed bypass is further provided with a fixing portion on the inner peripheral wall of the filling cavity, and the fixing portion extends along the longitudinal direction and / or the circumferential direction of the fixed bypass;

[0016] A clamping portion is arranged on the outer peripheral wall of the connecting joint, and the clamping portion extends along the longitudinal direction and / or the circumferential direction of the connecting joint;

[0017] The clamping portion of the connecting joint and the fixing portion of the fixed bypass are abutted against each other in at least one direction of the longitudinal direction and / or the circumferential direction, and the abutted position is inside the filling cavity and communicates with the outside through the communication port; a filling medium is filled into the filling cavity from the communication port and can be hardened inside the filling cavity to limit the relative movement between the connecting joint and the fixed bypass.

[0018] In this solution, a fixed bypass and a connecting joint are respectively arranged on the floating device and the connecting device. When the floating device and the connecting device are not assembled, they can be transported to the dock by land bulk transportation first. After being transported to the dock, the cooperation between the fixed bypass and the connecting joint is utilized first, so that the clamping portion and the fixing portion are abutted against each other in at least one direction of the longitudinal direction and the circumferential direction to achieve preliminary fixation; in addition, the abutted position of the clamping portion and the fixing portion is inside the filling cavity and communicates with the outside through the communication port, and the filling medium can be filled into the filling cavity from this communication port and hardened to limit the relative movement between the connecting joint and the fixed bypass. Through this setting, the transportation efficiency of the floating device and the connecting device before assembly can be improved, and the transportation cost is also reduced accordingly. On the other hand, compared with the welding connection method, this method can realize the connection and fixation between the floating device and the connecting device, and is also simpler and more convenient in assembly.

[0019] Further, the communication port of the fixed bypass is located at the end in its longitudinal direction, the clamping portion of the connecting joint is inserted into the filling cavity of the fixed bypass through the communication port, and abuts against the corresponding fixing portion in a rotating manner inside the filling cavity; the filling medium is filled into the gap between the fixed bypass and the connecting joint from the communication port.

[0020] In this solution, through this kind of setting, the clamping part of the connecting joint can be inserted and fitted into the filling cavity of the fixed bypass and rotated within the filling cavity, so as to abut against the corresponding fixing part, realizing the preliminary fixation between the fixed bypass and the connecting joint; and this kind of structural setting can make the filling cavity of the fixed bypass include the gap between the fixed bypass and the connecting joint, so that it is more convenient to directly fill the filling medium into this gap through the communication port to further fix the clamping part and the fixing part at the clamping position and meet the requirement of sufficient connection strength.

[0021] Furthermore, the fixing part includes a plurality of first longitudinal rib plates and a plurality of first circumferential rib plates connected correspondingly; the clamping part includes a plurality of second longitudinal rib plates and a plurality of second circumferential rib plates connected correspondingly;

[0022] During the rotation of the clamping part within the filling cavity with respect to the fixing part, the plurality of first circumferential rib plates are respectively driven to abut against the corresponding second longitudinal rib plates, and the plurality of second circumferential rib plates are respectively driven to abut against the corresponding first longitudinal rib plates.

[0023] In this solution, when the clamping part of the connecting joint rotates within the filling cavity of the fixed bypass, the abutment between the first circumferential rib plate and the corresponding second longitudinal rib plate, and the abutment between the second circumferential rib plate and the corresponding first longitudinal rib plate can be utilized to realize that the clamping part and the fixing part can abut against each other in at least one direction of the longitudinal and circumferential directions, thereby realizing the preliminary fixation between the floating device and the connecting device and preventing the two from separating; at the same time, the setting of the circumferential rib plates and the longitudinal rib plates can also better play a role in strengthening the support, and when filling the filling medium in the filling cavity, it can better play the performance of shear resistance and torsion resistance.

[0024] Furthermore, a plurality of the fixing parts are arranged on the inner peripheral wall of the filling cavity, and the plurality of fixing parts are arranged at intervals along the circumference of the fixed bypass; a plurality of the clamping parts corresponding to the plurality of fixing parts are arranged on the outer peripheral wall of the connecting joint, and the clamping parts are rotationally abutted against the corresponding fixing parts within the filling cavity.

[0025] In this solution, by respectively arranging a plurality of fixing parts and a plurality of clamping parts on the inner peripheral wall of the filling cavity and the outer peripheral wall of the connecting joint, during the rotation of the plurality of clamping parts of the connecting joint within the filling cavity, the plurality of clamping parts can be simultaneously clamped to the corresponding fixing parts, further increasing the stability of the mutual clamping between the connecting joint and the fixed bypass and enhancing its shear resistance and torsion resistance performance.

[0026] Furthermore, the filling medium is concrete or cement.

[0027] In this solution, the filling medium specifically uses concrete or cement, which has good hardening performance and good compressive performance after hardening, and can better meet the further fixation of the connecting device and the floating device.

[0028] Further, the connecting device includes multiple cross braces, connection joints are arranged at both end positions of each cross brace, multiple fixing bypasses are arranged on the floating device, and the connection joints located at both ends of the cross brace are respectively connected in cooperation with the fixing bypasses on two adjacent floating devices.

[0029] In this solution, the connecting device specifically includes multiple cross braces, making the overall connecting device simpler and lower in cost. At the same time, connection joints are arranged at the ends of the cross braces, and the clamping parts of the connection joints are used to cooperate and connect with the corresponding fixing bypasses on two adjacent floating devices, so as to fix the cross brace between two adjacent floating devices and support and fix the two adjacent floating devices; and through this structural and positional arrangement, it is also more convenient for the transportation of the connecting device and the assembly with the floating device, further improving the transportation efficiency and assembly efficiency.

[0030] Further, the floating device includes a floating cabin and a heaving cabin, the heaving cabin is arranged at the bottom of the floating cabin, and the peripheral radial dimension of the heaving cabin is larger than the peripheral radial dimension of the floating cabin;

[0031] Fixing bypasses are arranged on both the floating cabin and the heaving cabin, and cross braces are connected between the floating cabins and between the heaving cabins of two adjacent floating devices.

[0032] In this solution, the floating device provides buoyancy by the floating cabin and improves the static inclination stability and wave resistance of the entire floating wind turbine foundation by the heaving cabin. The floating cabin is arranged on the heaving cabin, optimizing the vertical motion performance of the floating wind turbine foundation. The peripheral radial dimension of the heaving cabin is larger than the peripheral radial dimension of the floating cabin, making the floating wind turbine foundation change in a multi-stage stepped manner to increase the vertical motion damping of the floating wind turbine foundation. In addition, cross braces are connected between the floating cabins and between the heaving cabins of two adjacent floating devices to further improve the connection stability between two adjacent floating devices, and when the entire floating wind turbine foundation is installed at sea, the stability of the entire floating wind turbine foundation can be improved.

[0033] Further, the connecting device further includes multiple diagonal braces, the first end of each diagonal brace is arranged on the cross brace, the second end of the diagonal brace is provided with a connection joint, and the connection joint located at the second end of the diagonal brace is connected in cooperation with the corresponding fixing bypass on the floating device.

[0034] In this solution, through this kind of setting of the diagonal brace, a triangular support structure is formed between the diagonal brace and the corresponding cross brace and floating device, so as to further improve the stability of the entire floating wind turbine foundation. Moreover, the connection method between the diagonal brace and the floating device also adopts the way that the connection joint and the fixed bypass cooperate with each other for clamping and filling the filling medium, so as to meet the requirements of tightness and airtightness, and at the same time improve the assembly and transportation efficiency and reduce the transportation cost.

[0035] Further, the number of the cross braces is two. The two cross braces are respectively a top cross brace and a bottom cross brace. The top cross brace is arranged between the floating cabins of two adjacent floating devices, and the bottom cross brace is arranged between the heaving cabins of two adjacent floating devices;

[0036] The number of the diagonal braces is two. The first ends of the two diagonal braces are both arranged on the bottom cross brace, and the second ends of the two diagonal braces are respectively connected to the floating cabins of two adjacent floating devices in a matching manner.

[0037] In this solution, both the cross braces and the diagonal braces of the connection device are set to two, so that the floating cabins and the heaving cabins between two adjacent floating devices can be connected and supported by one cross brace respectively. At the same time, the first ends of the two diagonal braces are arranged on the bottom cross brace, and the second ends of the two cross braces are connected to the floating cabins of the floating device in a matching manner, so that the floating cabins of the floating device are connected with both the cross brace and the diagonal brace. This kind of setting makes the support between the floating cabins more stable, and further enables the floating cabins to more reliably support the wind turbine tower.

[0038] Further, the connection device further includes a pipe joint. The pipe joint is arranged at the connection position between the first end of the diagonal brace and the cross brace. The pipe joint has a plurality of connection ports, and the structure at the connection port position is the same as the structure of the fixed bypass;

[0039] The cross brace for connecting the diagonal brace includes two cross brace units. The ends of the two cross brace units and the first end of the diagonal brace are respectively connected to the connection ports of the pipe joint in a matching manner.

[0040] In this solution, the connection device also includes a pipe joint. The first ends of the diagonal braces and the ends of the cross brace units are connected by using the plurality of connection ports of the pipe joint, so that the diagonal braces and the cross braces can be disassembled from each other, which is more convenient for the transportation of the connection device, and further improves the transportation efficiency and reduces the transportation cost; at the same time, the structures at the connection port positions of the pipe joint are the same as the structure of the fixed bypass, so that the cross brace units and the diagonal braces can adopt the same connection method to be connected to the pipe joint, and the connection stability and airtightness can also be satisfied.

[0041] A floating wind turbine, the floating wind turbine includes:

[0042] The wind turbine foundation as described above;

[0043] A wind turbine tower, which is fixed on the wind turbine foundation.

[0044] In this solution, the floating wind turbine specifically includes the floating wind turbine foundation as described above and a wind turbine tower arranged on the floating wind turbine foundation, thereby meeting the fastening and airtightness requirements of the assembly of the floating wind turbine, and at the same time improving the assembly and transportation efficiency and reducing the transportation cost.

[0045] The positive and progressive effects of the present utility model are as follows:

[0046] Through the structural design of the fixed bypass and the connection joint, and the assembly formed by their mutual combination, the fixed bypass and the connection joint are further respectively arranged on the floating device and the connection device, and the floating state and the connection device are used to form a wind turbine foundation for carrying the wind turbine tower.

[0047] When the floating device and the connection device are not assembled, they can be transported to the dock by land bulk transportation first. After being transported to the dock, the cooperation between the fixed bypass and the connection joint is used to make the clamping part and the fixing part abut against each other in at least one direction of the longitudinal and circumferential directions to achieve preliminary fixation; in addition, the position where the clamping part and the fixing part abut against each other is communicated with the outside through a communication port in the filling cavity, and the filling medium can be filled into the filling cavity from the communication port and hardened to limit the relative movement between the connection joint and the fixed bypass. Through this setting, the transportation efficiency of the floating device and the connection device before assembly can be improved, and the transportation cost is also reduced accordingly. On the other hand, compared with the welding connection method, this method can realize the connection and fixation between the floating device and the connection device, and is also simpler and more convenient in assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1 It is a schematic diagram of the overall structure of a floating wind turbine in an embodiment of the present utility model.

[0049] Figure 2 It is a schematic diagram of the overall structure of a wind turbine foundation in an embodiment of the present utility model.

[0050] Figure 3 It is a schematic diagram of the end face of the fixed bypass and the connection joint when they are inserted into each other and not rotated in an embodiment of the present utility model.

[0051] Figure 4 It is a schematic diagram of the end face of the fixed bypass and the connection joint when they are inserted into each other and rotated in an embodiment of the present utility model.

[0052] Figure 5 For Figure 4Schematic diagram after filling the filling medium in the filling cavity.

[0053] Figure 6 Schematic diagram of the connection between the pipe section member and the cross brace in an embodiment of the present utility model.

[0054] Figure 7 Schematic diagram of the connection after the rotation and clamping of the fixing part and the clamping part in an embodiment of the present utility model.

[0055] Description of the reference numerals:

[0056] Floating wind turbine 1

[0057] Wind turbine foundation 11

[0058] Wind turbine tower 12

[0059] Floating device 111

[0060] Connection device 112

[0061] Filling medium 113

[0062] Filling cavity 114

[0063] Floating cabin 1111

[0064] Heaving cabin 1112

[0065] Fixed bypass 1113

[0066] Fixing part 1114

[0067] First longitudinal rib plate 11141

[0068] First circumferential rib plate 11142

[0069] Cross brace 1121

[0070] Diagonal brace 1122

[0071] Pipe section member 1123

[0072] Connection port 11231

[0073] Connection joint 1124

[0074] Clamping part 1125

[0075] Second longitudinal rib plate 11251

[0076] Second circumferential rib plate 11252 Detailed implementation manner

[0077] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present utility model and should not be construed as limiting the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the scope of protection of the present utility model.

[0078] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the present utility model 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 thus should not be construed as limiting the present utility model.

[0079] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0080] This embodiment provides a floating wind turbine 1, as Figure 1 shown. The floating wind turbine 1 mainly includes a wind turbine foundation 11 and a wind turbine tower 12. The wind turbine tower 12 mainly includes wind turbine blades, a nacelle assembly, and a fixed tower. The bottom end of the fixed tower is fixed on the wind turbine foundation 11, the top end of the fixed tower is fixed with the nacelle assembly, and the wind turbine blades are arranged at the top end of the fixed tower through the nacelle assembly. The wind turbine blades can rotate under the action of wind force, thereby realizing the conversion of kinetic energy into electrical energy. Among them, the specific structure and working principle of the wind turbine tower 12 can both adopt relevant solutions existing in the prior art and will not be elaborated here.

[0081] Figure 2Reveals the overall structure of the wind turbine foundation 11 in this embodiment. The wind turbine foundation 11 includes three floating devices 111 and a connecting device 112. The connecting device 112 specifically adopts a structural form in which a cross brace 1121 and a diagonal brace 1122 are connected to each other. The wind turbine tower 12 is specifically arranged on the top of one of the floating devices 111, and its specific arrangement method can also adopt the solutions existing in the prior art, which will not be elaborated here. Among them, a connecting device 112 is arranged between the floating device 111 where the wind turbine tower 12 is arranged and the other two floating devices 111 to connect and fix the adjacent two floating devices 111, so that these floating devices 111 form a complete wind turbine foundation 11 under the connection and fixation of the connecting device 112.

[0082] It should be noted that in this embodiment, the number of floating devices 111 is set to three, and the three floating devices 111 can be arranged in a triangular manner through the connecting device 112 to improve the stability of the overall structure of the wind turbine foundation 11. However, in other alternative embodiments, the number of floating devices 111 can also be set to other numbers. For example, four floating devices 111 are arranged in a rectangular manner, and so on.

[0083] Furthermore, the wind turbine foundation 11 further includes a filling medium 113. As Figure 2 、 Figure 3 and Figure 4 shown, a fixed bypass 1113 and a connecting joint 1124 are respectively arranged on the floating device 111 and the connecting device 112. The fixed bypass 1113 has a filling cavity 114 inside and at least one communication port connecting the filling cavity 114 with the outside. The fixed bypass 1113 is also provided with a fixing portion 1114 on the inner peripheral wall of the filling cavity 114, and the fixing portion 1114 extends along the longitudinal and circumferential directions of the fixed bypass 1113. A clamping portion 1125 is arranged on the outer peripheral wall of the connecting joint 1124, and the clamping portion 1125 extends along the longitudinal and circumferential directions of the connecting joint 1124. The clamping portion 1125 of the connecting joint 1124 and the fixing portion 1114 of the fixed bypass 1113 are in mutual abutment in the longitudinal and circumferential directions, and the position of mutual abutment is inside the filling cavity 114 and communicates with the outside through the communication port.

[0084] As Figure 5 shown, a filling medium 113 is filled in the filling cavity 114. The initial state of the filling medium 113 is a fluid state and can be hardened and transformed into a solid state after being filled into the filling cavity 114 to limit the relative movement between the connecting joint 1124 and the fixed bypass 1113.

[0085] When the floating device 111 and the connecting device 112 are not assembled, they can be transported to the dock by land bulk transportation first. After being transported to the dock, the cooperation between the fixed bypass 1113 and the connecting joint 1124 is utilized first, so that the clamping portion 1125 and the fixing portion 1114 are abutted against each other in the longitudinal and circumferential directions to achieve preliminary fixation. In addition, the position where the clamping portion 1125 and the fixing portion 1114 are abutted against each other communicates with the outside through the communication port in the filling cavity 114. The filling medium 113 can be filled into the filling cavity 114 from the communication port and hardened to limit the relative movement between the connecting joint 1124 and the fixed bypass 1113. Through this setting, the transportation efficiency of the floating device 111 and the connecting device 112 before assembly can be improved, and the transportation cost is also reduced accordingly. On the other hand, this method of combining clamping and filling hardening can not only meet the fastening requirements similar to those of welded connections, but also satisfy the airtightness at the connection position and reduce the possibility of corrosion at the connection position.

[0086] It should be noted that in this embodiment, the fixed bypasses 1113 on the floating device 111 are individually processed and formed, and then the individually processed and formed fixed bypasses 1113 are fixed on the floating device 111 by fixing methods such as welding. However, in other alternative embodiments, the fixed bypasses 1113 provided on the floating device 111 can be integrally processed and formed with the floating device 111. In this embodiment, the connecting joint 1124 provided on the connecting device 112 is integrally processed and formed with the connecting device 112, that is, the connecting joint 1124 is integrally formed at the ends of the cross brace 1121 and the diagonal brace 1122. However, in other alternative embodiments, the connecting joint 1124 can also be individually processed and formed with the connecting device 112, and then the individually processed and formed connecting joint 1124 is fixed on the connecting device 112 by fixing methods such as welding. In addition, after the fixed bypass 1113 and the connecting joint 1124 are processed and formed and transported to the dock individually, the fixed bypass 1113 and the connecting joint 1124 can also be assembled and connected to form a combination first, and then the fixed bypass 1113 and the connecting joint 1124 on the combination are respectively installed on the floating device 111 and the connecting device 112, which can also achieve high transportation and assembly efficiency, low transportation cost, and meet the fastening and airtightness requirements of welded connections.

[0087] In this embodiment, the fixed bypass 1113 is arranged on the floating device 111, and the connection joint 1124 is arranged on the connecting device 112. The reason is that the connecting device 112 adopts a structural form in which the cross brace 1121 and the diagonal brace 1122 are connected to each other. Therefore, it is more convenient to arrange the connection joint 1124 at the ends of the cross brace 1121 and the diagonal brace 1122. However, in other alternative embodiments, the fixed bypass 1113 can also be arranged on the connecting device 112, and the connection joint 1124 can also be arranged on the floating device 111, without fixed restrictions.

[0088] Furthermore, as Figures 2 to 5 shown, one end of the fixed bypass 1113 along its longitudinal direction is arranged on the floating device 111, and a communication port is arranged at the other end along its longitudinal direction. The clamping portion 1125 of the connection joint 1124 is inserted into the filling cavity 114 of the fixed bypass 1113 through the communication port, and abuts against the corresponding fixing portion 1114 in a rotating manner within the filling cavity 114. The filling medium 113 is filled into the gap between the fixed bypass 1113 and the connection joint 1124 from the communication port. Through this kind of arrangement, the clamping portion 1125 of the connection joint 1124 can be inserted into the filling cavity 114 of the fixed bypass 1113 in cooperation and rotate within the filling cavity 114, so as to abut against the corresponding fixing portion 1114, realizing the preliminary fixation between the fixed bypass 1113 and the connection joint 1124; and this kind of structural arrangement can make the filling cavity 114 of the fixed bypass 1113 include the gap between the fixed bypass 1113 and the connection joint 1124, so that it can be more convenient to directly fill the filling medium 113 into this gap through the communication port to further fix the clamping portion 1125 and the fixing portion 1114 at the clamping position, meeting the requirement of sufficient connection strength.

[0089] However, in other alternative embodiments, the communication port of the fixed bypass 1113 may not be arranged at the end in the longitudinal direction, for example, arranged on the side wall in its circumferential direction, as long as it can satisfy that the communication port can communicate the filling cavity 114 with the outside.

[0090] As Figure 2As shown, the connecting device 112 between two floating devices 111 specifically includes two cross braces 1121. Each cross brace 1121 extends horizontally, and connection joints 1124 are provided at both ends of each cross brace 1121. A plurality of fixed bypasses 1113 are correspondingly provided on each floating device 111. The connection joints 1124 located at both ends of each cross brace 1121 are respectively connected in cooperation with the corresponding fixed bypasses 1113 on two adjacent floating devices 111. Through the structural design of the cross brace 1121, the connecting device 112 is made simpler and lower in cost as a whole. At the same time, connection joints 1124 are provided at the ends of the cross brace 1121 structure, and they are connected in cooperation with the corresponding fixed bypasses 1113 on two adjacent floating devices 111 to fix the cross brace 1121 between two adjacent floating devices 111 and support and fix the two adjacent floating devices 111. And through this kind of structure and position setting, it is also more convenient for the transportation of the connecting device 112 and the assembly with the floating device 111, further improving the transportation efficiency and assembly efficiency.

[0091] It should be noted that in this embodiment, the number of cross braces 1121 is set to two. However, in other alternative embodiments, the number of cross braces 1121 can be adjusted according to actual needs. When it is necessary to improve the connection stability between two floating devices 111, the number of cross braces 1121 between two adjacent floating devices 111 can be correspondingly increased, and there is no fixed limit. In addition, in this embodiment, the connecting device 112 adopts the structural design of the cross brace 1121 because the end of the cross brace 1121 can be directly used to set the connection joint 1124, so that the clamping part 1125 of the connection joint 1124 can be inserted into the filling cavity 114 of the fixed bypass 1113 and rotatably abutted against the fixing part 1114 in the filling cavity 114. However, in other alternative embodiments, the connecting device 112 may not adopt the structural design of the cross brace 1121. For example, the connecting device 112 can directly adopt a plate-like structure or other irregular structures, and connection joints 1124 are provided at the parts of the connecting device 112 used for clamping with the fixed bypass 1113.

[0092] On this basis, as Figure 2As shown, each floating device 111 includes a floating cabin 1111 and a heaving cabin 1112. The structures of both the floating cabin 1111 and the heaving cabin 1112 are cylindrical structures. However, in other alternative embodiments, the structures of the floating cabin 1111 and the heaving cabin 1112 can also adopt square structures or other irregular structures. Among them, the heaving cabin 1112 is arranged at the bottom of the floating cabin 1111, and the peripheral radial dimension of the heaving cabin 1112 is larger than the peripheral radial dimension of the floating cabin 1111. Through this setting, the floating device 111 utilizes the floating cabin 1111 to provide buoyancy and uses the heaving cabin 1112 to improve the static inclination stability and wave resistance of the entire wind turbine foundation 11. The floating cabin 1111 is arranged on the heaving cabin 1112, optimizing the vertical motion performance of the wind turbine foundation 11. The peripheral radial dimension of the heaving cabin 1112 is larger than the peripheral radial dimension of the floating cabin 1111, making the wind turbine foundation 11 change in a multi-level stepped manner to increase the vertical motion damping of the wind turbine foundation 11.

[0093] Furthermore, as Figure 2 shown, two fixed bypasses 1113 for connecting with two cross braces 1121 are arranged on the side wall of the floating cabin 1111, so that the two cross braces 1121 are connected between the floating cabins 1111 of adjacent floating devices 111. And between two adjacent floating devices 111, the two cross braces 1121 are respectively a top cross brace and a bottom cross brace to connect and fix the tops and bottoms of two adjacent floating devices 111, making the wind turbine foundation 11 more stable.

[0094] In other alternative embodiments, fixed bypasses 1113 can also be arranged on the outer peripheral walls of both the floating cabin 1111 and the heaving cabin 1112 of each floating device 111, and cross braces 1121 are arranged between the floating cabins 1111 and between the heaving cabins 1112 of two adjacent floating devices 111, that is, a top cross brace is arranged between the floating cabins 1111 of two adjacent floating devices 111, and a bottom cross brace is arranged between the heaving cabins 1112 of two adjacent floating devices 111 to further improve the connection stability between two adjacent floating devices 111. When the entire wind turbine foundation 11 is installed at sea, the stability of the entire wind turbine foundation 11 can be improved.

[0095] As Figure 2As shown, the connecting device 112 of the wind turbine foundation 11 further includes two diagonal braces 1122. Both of the two diagonal braces 1122 are rod-shaped structures like the cross brace 1121. The first ends of the two diagonal braces 1122 are both arranged on one of the cross braces 1121. Connecting joints 1124 are arranged at the second ends of the two diagonal braces 1122. And a fixed bypass 1113 corresponding to the second end of the diagonal brace 1122 is arranged on each floating device 111. The connecting joint 1124 at the second end of the diagonal brace 1122 is connected to the corresponding fixed bypass 1113 on the floating device 111 in a matching manner.

[0096] Through this setting of the diagonal brace 1122, a triangular support structure is formed between the diagonal brace 1122 and the corresponding cross brace 1121 and floating device 111, so as to further improve the stability of the entire wind turbine foundation 11. And the connection method between the diagonal brace 1122 and the floating device 111 also adopts the method of connecting the connecting joint 1124 and the fixed bypass 1113 in a matching manner and filling the filling medium 113, which can meet the requirements of tightness and airtightness, and at the same time improve the assembly and transportation efficiency and reduce the transportation cost.

[0097] Specifically, when a top cross brace is arranged between the floating cabins 1111 of two adjacent floating devices 111 and a bottom cross brace is arranged between the heaving cabins 1112 of two adjacent floating devices 111, the first ends of the two diagonal braces 1122 are both arranged on the bottom cross brace, and the second ends of the two diagonal braces 1122 are respectively clamped and connected to the floating cabins 1111 of two adjacent floating devices 111 in a matching manner. Through this setting, the floating cabins 1111 of the floating device 111 are simultaneously connected to the cross brace 1121 and the diagonal brace 1122, so that the support between the floating cabins 1111 is more stable, and the floating cabins 1111 can more reliably support the wind turbine tower 12. Of course, in other alternative embodiments, the first ends of the two diagonal braces 1122 can also be arranged on the top cross brace, and the second ends of the two diagonal braces 1122 are respectively clamped and connected to the heaving cabins 1112 of two adjacent floating devices 111 in a matching manner.

[0098] Such as Figure 2 and Figure 6As shown, the connecting device 112 of the fan foundation 11 further includes a pipe section member 1123. The pipe section member 1123 is arranged at the connection position between the first ends of two diagonal braces 1122 and the bottom cross brace, and the pipe section member 1123 has four connection ports 11231. The structure at each connection port 11231 is the same as that of the fixed bypass 1113. Among them, the cross brace 1121 for connecting the diagonal braces 1122 includes two cross brace units. The ends of the two cross brace units and the first ends of the diagonal braces 1122 are respectively fitted and clamped to the connection ports 11231 of the pipe section member 1123. By using the multiple connection ports 11231 of the pipe section member 1123 to connect the first ends of the diagonal braces 1122 and the ends of the cross brace units, the diagonal braces 1122 and the cross braces 1121 can be disassembled, which is more convenient for the transportation of the connecting device 112, thereby improving the transportation efficiency and reducing the transportation cost. At the same time, the structure at the connection ports 11231 of the pipe section member 1123 is the same as that of the fixed bypass 1113, so that the cross brace units and the diagonal braces 1122 can be connected to the pipe section member 1123 in the same connection manner, which can also meet the requirements of connection stability and airtightness.

[0099] In addition, as Figure 2 shown, the cross brace 1121, the diagonal brace 1122 of the connecting device 112, and the pipe section member 1123 connecting the two are all located in the same plane, and the central axes of the floating devices 111 connected to the connecting device 112 are all located in this plane. When the fan foundation 11 floats on the water surface, it may be subjected to forces from various directions. By arranging the cross brace 1121 and the diagonal brace 1122 of the connecting device 112 in the same plane, when the connecting device 112 is connected between two adjacent floating devices 111, the central axes of the two floating devices 111 are all located in this plane, so that the forces exerted by the connecting device 112 on the two floating devices 111 are all located in this plane, avoiding the occurrence of unstable individual connection points during long-term use.

[0100] Furthermore, as Figures 3 to 6 shown, in this embodiment, the fixing part 1114 inside the fixed bypass 1113 includes a plurality of first longitudinal rib plates 11141 and a plurality of first circumferential rib plates 11142 that are correspondingly connected. The plurality of first longitudinal rib plates 11141 are continuously arranged along the longitudinal direction of the fixed bypass 1113, and the plurality of first circumferential rib plates 11142 are arranged at intervals along the circumferential direction of the fixed bypass 1113. And the clamping part 1125 on the connection joint 1124 includes a plurality of second longitudinal rib plates 11251 and a plurality of second circumferential rib plates 11252 that are correspondingly connected. The plurality of second longitudinal rib plates 11251 are continuously arranged along the longitudinal direction of the connection joint 1124, and the plurality of second circumferential rib plates 11252 are arranged at intervals along the circumferential direction of the tubular member. Combining Figure 7As shown, when the clamping portion 1125 of the connecting device 112 rotates inside the sleeve structure, it can drive a plurality of first circumferential rib plates 11142 to abut against the corresponding second longitudinal rib plates 11251, and a plurality of second circumferential rib plates 11252 to abut against the corresponding first longitudinal rib plates 11141. Through this setting, the connection between the clamping portion 1125 of the connecting device 112 and the fixing portion 1114 of the fixed bypass 1113 is realized, and then the preliminary fixation between the connecting device 112 and the floating device 111 is realized, avoiding the separation of the two; at the same time, the setting of the circumferential rib plates and longitudinal rib plates can also play a role in strengthening the support. When the filling medium 113 is filled in the fitting gap, it can play the performance of shear resistance and torsion resistance, which can be used to make up for the disadvantage of poor torsion resistance caused by the hardening of the filling material.

[0101] It should be noted that in this embodiment, the fixed bypass 1113 is provided with both the first longitudinal rib plate 11141 and the first circumferential rib plate 11142 on the inner wall of its filling cavity 114, and both the second longitudinal rib plate 11251 and the second circumferential rib plate 11252 are provided on the outer peripheral wall of the connecting joint 1124 to realize the abutment between the fixed bypass 1113 and the connecting joint 1124 in both the longitudinal and circumferential directions, further improving the stability of the two. However, in other alternative embodiments, only longitudinal rib plates or only circumferential rib plates can be provided to realize the abutment between the fixed bypass 1113 and the connecting joint 1124 in the longitudinal or circumferential direction.

[0102] In addition, as Figure 3 shown, the fixed bypass 1113 is provided with four fixing portions 1114 on the inner peripheral wall of its filling cavity 114, and the four fixing portions 1114 are arranged at intervals along the circumferential direction of the fixed bypass 1113. Correspondingly, four clamping portions 1125 are provided on the outer peripheral wall of the connecting device 112. During the rotation of the connecting joint 1124 relative to the fixed bypass 1113, the four clamping portions 1125 are driven to simultaneously abut against the corresponding fixing portions 1114 to further increase the stability of the connection between the connecting device 112 and the fixed bypass 1113, and enhance its shear resistance and torsion resistance performance. Of course, in other alternative embodiments, the number of the fixing portions 1114 and the clamping portions 1125 can be adjusted according to needs, and there is no fixed limit.

[0103] It should be noted that as Figure 4 、 Figure 5 and Figure 7As shown, after the connection joint 1124 is rotated into place within the filling cavity 114 of the fixed bypass 1113, the connection joint 1124 and the fixed bypass 1113 cannot be separated from each other by pulling. They can only be separated by rotating in the opposite direction and in the direction opposite to the original insertion direction. Through the above method, the preliminary fixation of the connection device 112 and the floating device 111 is achieved. At this time, a mating gap is formed between the connection joint 1124 and the fixed bypass 1113. This mating gap is located within the filling cavity 114, so that the filling medium 113 can be directly filled into this mating gap, and the connection device 112 and the floating device 111 are fixed again by the hardening of the filling medium 113.

[0104] Furthermore, the filling medium 113 specifically uses concrete or cement, which are both in a fluid state in the initial state and can be filled into the mating gap. After hardening, they have good compressive properties and can preferably meet the further fixation of the connection device 112 and the floating device 111. However, in other alternative embodiments, the filling medium 113 can also use other substances existing in the prior art. For example, metal after being melted at high temperature can also meet the performance of filling and hardening. However, from the perspective of economic cost and operation, using concrete or cement is a more preferred choice.

[0105] As described above, in this embodiment, the floating wind turbine 1 includes the wind turbine foundation 11 and the wind turbine tower 12 as described above, and the wind turbine tower 12 is fixed on the wind turbine foundation 11 to achieve the tightness and airtightness of the assembly of the floating wind turbine 1, and at the same time improve the assembly and transportation efficiency and reduce the transportation cost. Further, as Figure 1 shown, in this embodiment, the wind turbine foundation 11 includes three floating devices 111, and the three floating devices 111 are arranged in a triangular distribution. On this basis, one of the three floating devices 111 serves as the load-bearing floating device 111, and the wind turbine tower 12 is specifically fixed on this load-bearing floating device 111. The connection device 112 is arranged between the load-bearing floating device 111 and the other two floating devices 111 to reduce the connection cost as much as possible while meeting the actual requirements. However, in other alternative embodiments, in order to improve the overall stability of the wind turbine foundation 11, connection devices 112 can also be arranged between all three floating devices 111, and there is no fixed limitation.

[0106] Although the specific embodiments of the present invention have been described above, those skilled in the art should understand that this is only for illustration. The protection scope of the present invention is defined by the appended claims. Without departing from the principles and essence of the present invention, those skilled in the art can make various changes or modifications to these embodiments, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A fixed bypass, used to be installed on a floating device or a connecting device, characterized in that: The interior of the fixed bypass has a filling cavity and at least one connecting port connecting the filling cavity with the outside; the fixed bypass is also provided with a fixing portion on the inner wall of the filling cavity, and the fixing portion extends along the longitudinal direction of the fixed bypass and / or the circumferential direction of the fixed bypass.

2. An assembly, characterized in that: The assembly comprises a fixed bypass and a connecting joint, wherein the fixed bypass and the connecting joint are respectively arranged on the floating device and the connecting device; wherein, The fixed bypass has a filling cavity and at least one communication port connecting the filling cavity with the outside, and the fixed bypass is further provided with a fixing portion on the inner peripheral wall of the filling cavity, and the fixing portion extends along the longitudinal direction of the fixed bypass and / or the circumferential direction of the fixed bypass; A clamping portion is provided on the peripheral wall of the connecting joint, and the clamping portion extends along the longitudinal direction of the connecting joint and / or the circumferential direction of the connecting joint; The clamping portion of the connecting joint and the fixing portion of the fixed bypass abut against each other in at least one direction of the longitudinal direction and / or the circumferential direction, and the abutting position is communicated with the outside through the communication port in the filling cavity.

3. A wind turbine foundation, comprising a floating device and a connecting device, characterized in that: The floating device and the connecting device are respectively provided with a fixed bypass and a connecting joint; wherein, The fixed bypass has a filling cavity and at least one communication port connecting the filling cavity with the outside, and the fixed bypass is further provided with a fixing portion on the inner peripheral wall of the filling cavity, and the fixing portion extends along the longitudinal direction of the fixed bypass and / or the circumferential direction of the fixed bypass; A clamping portion is provided on the peripheral wall of the connecting joint, and the clamping portion extends along the longitudinal direction of the connecting joint and / or the circumferential direction of the connecting joint; The clamping portion of the connecting joint and the fixing portion of the fixed bypass abut against each other in at least one direction of the longitudinal direction and / or the circumferential direction, and the abutting position is connected to the outside through the communication port in the filling cavity; The filling medium is filled into the filling cavity from the communication port and can be hardened in the filling cavity to limit the relative movement between the connecting joint and the fixed bypass.

4. The wind turbine foundation according to claim 3, characterized in that: The communication port of the fixed bypass is located at the end in the longitudinal direction thereof, and the clamping portion of the connecting joint is inserted into the filling cavity of the fixed bypass through the communication port, and is rotatably abutted against the corresponding fixed portion in the filling cavity; The filling medium is filled from the communication port into the gap between the fixed bypass and the connection joint.

5. The wind turbine foundation according to claim 4, characterized in that: The fixing portion includes a plurality of first longitudinal ribs and a plurality of first circumferential ribs connected in a corresponding manner, and the clamping portion includes a plurality of second longitudinal ribs and a plurality of second circumferential ribs connected in a corresponding manner; During the rotation of the clamping portion and the fixing portion inside the filling cavity, the plurality of first circumferential ribs are driven to abut against the corresponding second longitudinal ribs, and the plurality of second circumferential ribs are driven to abut against the corresponding first longitudinal ribs.

6. The wind turbine foundation according to claim 4, characterized in that: A plurality of the fixing parts are arranged on the inner peripheral wall of the filling cavity, and the plurality of the fixing parts are arranged at intervals along the circumference of the fixed bypass; a plurality of the clamping parts are arranged on the outer peripheral wall of the connecting joint corresponding to the plurality of the fixing parts, and the clamping parts are simultaneously abutted against the corresponding fixing parts in a rotational manner inside the filling cavity.

7. The wind turbine foundation according to claim 3, characterized in that: The filling medium is concrete or cement.

8. The wind turbine foundation according to any one of claims 3 to 7, characterized in that: The connecting device includes a plurality of cross braces, and the connecting joints are provided at both end positions of the cross braces. A plurality of fixed bypasses are provided on the floating device, and the connecting joints located at both ends of the cross braces are respectively cooperated and connected with the fixed bypasses on two adjacent floating devices.

9. The wind turbine foundation according to claim 8, characterized in that: The floating device comprises a floating tank and a heave tank, wherein the heave tank is arranged at the bottom of the floating tank, and the outer radial dimension of the heave tank is larger than the outer radial dimension of the floating tank; The fixed bypass is provided on both the floating tank and the heave tank, and the cross brace is connected between the floating tanks and the heave tanks of two adjacent floating devices.

10. The wind turbine foundation according to claim 9, characterized in that: The connecting device also includes a plurality of diagonal braces, the first ends of the diagonal braces are arranged on the transverse braces, the second ends of the diagonal braces are provided with the connecting joints, and the connecting joints located at the second ends of the diagonal braces are cooperatively connected with the corresponding fixed bypass on the floating device.

11. The wind turbine foundation according to claim 10, characterized in that: The number of the cross braces is two, and the two cross braces are respectively a top cross brace and a bottom cross brace. The top cross brace is arranged between the floating compartments of two adjacent floating devices, and the bottom cross brace is arranged between the heave compartments of two adjacent floating devices. The number of the diagonal braces is two, the first ends of the two diagonal braces are both arranged on the bottom cross brace, and the second ends of the two diagonal braces are respectively connected to the floating compartments of two adjacent floating devices.

12. The wind turbine foundation according to claim 10, characterized in that: The connecting device further comprises a pipe segment, which is arranged at the connection position between the first end of the diagonal brace and the transverse brace, and has a plurality of connection ports, and the structure at the connection port position is the same as the structure of the fixed bypass; The transverse brace used to connect the diagonal braces includes two sections of transverse brace units, and the ends of the two sections of transverse brace units and the first end of the diagonal brace are respectively matched and connected to the connecting port of the pipe segment.

13. A floating wind turbine, characterized in that: The floating wind turbine comprises: The wind turbine foundation according to any one of claims 3 to 12; A wind turbine tower is fixed on the wind turbine foundation.

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