Multidirectional adjustable reinforced tubular bus support over-current fitting suitable for strong wind area

Abstract

The utility model relates to the field of a direct current field of a converter station of an extra-high voltage direct current transmission project, in particular to a multidirectional adjustable reinforced tubular bus support over-current fitting suitable for a strong wind area. Comprising a base, a horizontal supporting assembly, an inclined supporting assembly and an overflowing assembly. The base is arranged on a flange plate at the top end of the post insulator; the base is connected with the horizontal supporting assembly. The horizontal supporting assembly is connected with the horizontal tubular bus; the base is connected with the inclined supporting assembly. The inclined support assembly is rotationally connected with the inclined tube bus; one end of the over-current assembly is connected with the horizontal tubular bus, and the other end is connected with the inclined tubular bus. The device not only meets the requirement of angle adjustment with errors between the actual installation position and the theoretical installation position of the inclined tube bus, but also meets the requirement of wind loads in different directions in a strong wind area; and meanwhile, the large-current conduction capability between the horizontal tubular bus bar and the inclined tubular bus bar is also ensured, and the risk of corona discharge can be effectively inhibited.

Description

Technical Field

[0001] This utility model relates to the DC field of converter stations in ultra-high voltage direct current transmission projects, and in particular to a multi-directional adjustable reinforced tube busbar support for overcurrent in windy areas. Background Technology

[0002] In ultra-high voltage direct current (UHVDC) converter stations, the DC field, as a crucial component connecting the DC transmission lines and the valve hall, plays a vital role in power conversion and distribution. Various high-voltage equipment, such as filters, surge arresters, and disconnectors, are housed within the DC field. These devices are typically electrically connected via flexible conductors or tubular busbars. Due to variations in equipment installation height, some tubular busbars cannot be arranged horizontally, necessitating a segmented connection of horizontal and inclined busbars to meet spatial requirements.

[0003] The actual installation position of the inclined tube busbar often deviates from its theoretical design position by an angle. Currently, the fixed tilt angle of the inclined clamp support structure cannot be adjusted, leading to repeated adjustments or forced matching during installation. This not only results in low construction efficiency but may also affect long-term operational reliability due to stress concentration. Furthermore, the fittings are constantly exposed to the outdoors, and some converter stations are located in areas prone to strong winds (such as coastal or canyon areas), where strong winds can act on the tube busbar system from any direction. While existing adjustable supports allow the inclined tube busbar to be adjusted vertically along the support axis, they lack multi-directional rotation capabilities and cannot dynamically adapt to wind loads from different directions, easily leading to localized structural overload or fatigue damage.

[0004] To address the aforementioned issues, there is an urgent need for a tube busbar support current-carrying fitting that combines multi-directional adjustability and high wind resistance stability to meet the stringent operational requirements of ultra-high voltage direct current converter stations. Utility Model Content

[0005] The purpose of this utility model is to solve the technical problems in the prior art and provide a multi-directional adjustable reinforced pipe busbar support for overcurrent fittings suitable for windy areas, which can adapt to the requirements of wind loads in different directions in windy areas.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This utility model provides a multi-directional adjustable reinforced tube busbar support current-carrying hardware suitable for high-wind areas, including a base, a horizontal support assembly, an inclined support assembly, and a current-carrying assembly; the base is mounted on the flange at the top of the post insulator; the base is connected to the horizontal support assembly; the horizontal support assembly is connected to the horizontal tube busbar; the base is connected to the inclined support assembly; the inclined support assembly is rotatably connected to the inclined tube busbar; one end of the current-carrying assembly is connected to the horizontal tube busbar, and the other end is connected to the inclined tube busbar.

[0008] Preferably, the base includes a cantilever portion extending along the outer side of the flange; the inclined support assembly is connected to the cantilever portion.

[0009] Preferably, the suspended portion is provided with stiffening plates.

[0010] Preferably, the suspended portion is provided with a support rod mounting hole; the support rod mounting hole and the inclined support assembly are connected by bolts.

[0011] Preferably, the inclined support assembly includes a support tube, a steering block, a support rod, a connecting frame, a nylon sleeve, and a clamp; the support rod mounting hole and the support rod are connected by bolts; the steering block has a support rod through hole and a threaded hole; the support rod is connected to the steering block through the support rod through hole; the support tube is coaxially sleeved on the outside of the support rod; one end of the support rod is provided with a limiting boss; one end of the steering block is connected to the top of the support tube, and the other end is connected to the limiting boss; the connecting frame is connected to the steering block by bolts through the threaded hole; one end of the connecting frame extends into the inclined tube nut along the axial direction; a nylon sleeve is slidably disposed on the connecting frame; the nylon sleeve is connected to the clamp; the clamp is sleeved on the outside of the inclined tube nut along the axial direction.

[0012] Preferably, the connecting frame includes a U-shaped head and a connecting rod; the two sides of the U-shaped head are connected by bolts and steering blocks through threaded holes; one end of the connecting rod is connected to the U-shaped head, and the other end extends into the inclined tube nut along the axial direction of the inclined tube nut.

[0013] Preferably, the clamp includes two symmetrically arranged clamping bodies; a clamping cavity is formed inside the two clamping bodies; the clamping cavity matches the outer contour of the inclined tube mother.

[0014] Preferably, the flow-through assembly includes a flow-through clamp and a flow-through line; both ends of the flow-through line are provided with flow-through clamps, and the flow-through clamps at both ends of the flow-through line are respectively connected to a horizontal duct and an inclined duct.

[0015] Preferably, the base is provided with insulator mounting holes; the flange is connected to the base by bolts passing through the insulator mounting holes.

[0016] Preferably, the flow line is arc-shaped and is located above the junction of the horizontal tube header and the inclined tube header.

[0017] Preferably, the base is provided with insulator mounting holes and horizontal support assembly mounting holes; the flange is connected to the base by bolts passing through the insulator mounting holes; the horizontal support assembly mounting holes and the horizontal support assembly are connected by bolts.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] This invention uses horizontal and diagonal support components to fix the horizontal and diagonal jacks respectively. When the jacks are subjected to large wind loads, this reduces the mutual influence between them, maintaining stability. The rotatable connection between the diagonal support components and the diagonal jacks allows for multi-directional adjustment, accommodating angle adjustments where there is a discrepancy between the actual and theoretical installation positions, as well as adapting to wind loads from different directions in high-wind areas. The overcurrent protection component ensures high current conduction capacity between the horizontal and diagonal jacks, effectively suppressing the risk of corona discharge.

[0020] Furthermore, the slidable connection between the nylon sleeve and the connecting rod allows the inclined tube nut to extend and retract along its axial direction, enhancing the adaptability of the support fitting to high wind environments.

[0021] Furthermore, the flow line is pre-bent into an arc shape, giving the flow assembly overall flexibility, allowing for appropriate expansion and contraction adjustments based on the actual installation location; at the same time, the flow line is positioned above the junction of the horizontal and inclined busbars, ensuring the electrical anti-corona requirements of the supporting flow fittings. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the support fitting for the flow of the present invention;

[0024] Figure 2 This is a top view of the base of this utility model;

[0025] Figure 3 This is a front view of the base of this utility model;

[0026] Figure 4 This is a schematic diagram of the diagonal support component of this utility model;

[0027] Figure 5 This is a schematic diagram of the steering block of this utility model;

[0028] Figure 6 This is a schematic diagram of the structure of the support rod of this utility model;

[0029] Figure 7 This is a front view of the connecting frame of this utility model;

[0030] Figure 8 for Figure 7 Side view;

[0031] Figure 9 These are three views of the clamp of this utility model;

[0032] Figure 10 This is a schematic diagram of the structure of the nylon sliding sleeve of this utility model;

[0033] Figure 11 This is a schematic diagram of the structure of the tube busbar overcurrent assembly of this utility model.

[0034] The components include: 1. Base; 11. Insulator mounting hole; 12. Horizontal support assembly mounting hole; 13. Rib plate; 14. Support rod mounting hole; 2. Horizontal support assembly; 3. Diagonal support assembly; 31. Support tube; 32. Steering block; 321. Support rod through hole; 322. Threaded hole; 33. Support rod; 34. Connecting frame; 341. U-shaped head; 342. Connecting rod; 35. Nylon sleeve; 351. Outer shaft surface; 352. Sliding hole; 36. Clamp; 361. Clamping cavity; 362. Sleeve mounting hole; 4. Current-passing assembly; 41. Current-passing clamp; 42. Current-passing line; 5. Horizontal tube nut; 6. Diagonal tube nut; 7. Flange. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0036] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0037] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0038] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0039] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0040] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] The present invention will now be described in further detail with reference to the accompanying drawings:

[0042] This utility model provides a multi-directional adjustable reinforced pipe busbar support for overcurrent fittings suitable for high-wind areas, such as... Figure 1As shown, the device includes a base 1, a horizontal support assembly 2, an inclined support assembly 3, and a current-carrying assembly 4. The base 1 is mounted on a flange 7 at the top of the post insulator. The base 1 is connected to the horizontal support assembly 2. The horizontal support assembly 2 is connected to a horizontal duct 5. The base 1 is connected to the inclined support assembly 3. The inclined support assembly 3 is rotatably connected to an inclined duct 6. One end of the current-carrying assembly 4 is connected to the horizontal duct 5, and the other end is connected to the inclined duct 6. This invention achieves stable fixation of the horizontal duct 5 and the inclined duct 6 through the independent design of the horizontal support assembly 2 and the inclined support assembly 3. When the duct is subjected to large wind loads, it reduces the mutual influence between the ducts, keeping them stable. The rotatable connection between the inclined support assembly 3 and the inclined duct 6 allows the inclined duct 6 to be adjusted in multiple directions, accommodating the need for angle adjustment due to errors between the actual and theoretical installation positions of the inclined duct 6, as well as the requirements of wind loads in different directions in high-wind areas. The current-carrying assembly 4 ensures the high-current conduction capacity between the horizontal duct 5 and the inclined duct 6, effectively suppressing the risk of corona discharge.

[0043] like Figure 2 and Figure 3 As shown, the base 1 is evenly provided with insulator mounting holes 11. The flange 7 is connected to the base 1 by bolts passing through the insulator mounting holes 11, so that the bolts are evenly stressed under multi-directional loads, improving shear resistance. The middle part of the base 1 is provided with horizontal support component mounting holes 12; the horizontal support component mounting holes 12 and the horizontal support component 2 are connected by bolts. The horizontal support component 2 is used to support the horizontal tube 5 upwards, including an upper clamp and a lower clamp. The upper clamp and the lower clamp fit together and clamp the horizontal tube 5. All loads borne by the horizontal tube 5 are transferred to the load-bearing equipment support insulator through the horizontal support component 2 and the base 1.

[0044] The base 1 includes a suspended portion extending along the outer side of the flange 7; the inclined support assembly 3 is connected to the suspended portion, and a stiffening plate 13 is provided on the suspended portion. The suspended portion is designed to be as short as possible while meeting installation space requirements, reducing the bending load on the extended portion. The stiffening plate 13 on the suspended portion further enhances the strength of the base 1, improving the overall structural stability and load-bearing capacity.

[0045] The suspended portion is provided with support rod mounting holes 14; the support rod mounting holes 14 and the inclined support assembly 3 are connected by bolts. One end of the inclined support assembly 3 is installed on the suspended portion, and the other end is used to clamp the inclined tube bus 6. The upper ends of the inclined support assembly 3 and the inclined tube bus 6 are connected to provide sliding support for the inclined tube bus 6. When the tube bus is subjected to strong wind loads, it can reduce stress concentration caused by the constraint of the fixed end. The lower end of the inclined tube bus 6 is a fixed support, and various loads on the inclined tube bus 6 are borne by the load-bearing device (post insulator) at the lower end.

[0046] For example, such as Figure 4 As shown, the inclined support assembly 3 includes a support tube 31, a steering block 32, a support rod 33, a connecting frame 34, a nylon sliding sleeve 35, and a clamp 36; the support rod mounting hole 14 and the support rod 33 are connected by bolts; as shown Figure 5 As shown, the steering block 32 has a support rod through hole 321 and a threaded hole 322, and the axis of the threaded hole 322 and the axis of the support rod through hole 321 are perpendicular to each other; the support rod 33 is connected to the steering block 32 by passing through the support rod through hole 321.

[0047] The support tube 31 is coaxially sleeved on the outside of the support rod 33; such as Figure 6 As shown, a limiting boss is provided at one end of the support rod 33; one end of the steering block 32 is connected to the top of the support tube 31, and the other end is connected to the limiting boss. The limiting boss and the support tube 31 lock the steering block 32, effectively preventing it from sliding in the up and down direction. At the same time, the steering block 32 can rotate flexibly around the axis of the support rod 33.

[0048] like Figure 7 and Figure 8 As shown, the connecting frame 34 includes a U-shaped head 341 and a connecting rod 342; the two sides of the U-shaped head 341 are connected by bolts and a steering block 32 through threaded holes 322; one end of the connecting rod 342 is connected to the U-shaped head 341, and the other end extends into the inclined tube 6 along the axial direction; a nylon sleeve 35 is slidably disposed on the connecting rod 342; the nylon sleeve 35 is connected to a clamp 36; the clamp 36 is sleeved on the outside of the inclined tube 6 along the axial direction. Through the relative sliding between the nylon sleeve 35 and the connecting frame 34, the telescoping and adjusting of the inclined tube 6 along its axial direction is realized. Secondly, by the relative rotation of the axis of the threaded hole 322 of the connecting frame 34 and the axis of the steering block 32, and the relative rotation of the axis of the steering block 32 and the axis of the support rod 33, the rotation of the inclined tube 6 in multiple directions is adjustable. On the one hand, it can meet the adjustment requirements of different angles when the actual installation position and the theoretical installation position of the inclined tube 6 are inconsistent. On the other hand, it can make the force evenly distributed on each part, improve its overall load-bearing capacity, improve the stress state, reduce local overload, enhance stability, and adapt to the requirements of wind loads in different directions in high wind areas.

[0049] like Figure 9 As shown, the clamp 36 includes two symmetrically arranged clamping bodies; a clamping cavity 361 is formed inside the two clamping bodies; the clamping cavity 361 matches the outer contour of the inclined tube 6, and is used to fit into the end of the inclined tube 6, and the two clamps 36 are fastened with bolts to clamp the inclined tube 6; as shown Figure 10As shown, the end face of the clamp 36 is provided with a sleeve mounting hole 362 that matches the outer diameter of the outer shaft surface 351 of the nylon sleeve 35, which is used to lock onto the outer shaft surface 351 of the nylon sleeve 35. When the nylon sleeve 35 is fitted into the connecting rod 342 of the connecting frame 34 through its sliding hole 352, as the nylon sleeve 35 slides along the connecting rod 342, it carries the inclined tube 6 to slide freely along its axis.

[0050] like Figure 11 As shown, the current-carrying assembly 4 includes a current-carrying clamp 41 and a current-carrying line 42. Both ends of the current-carrying line 42 are provided with current-carrying clamps 41, and the current-carrying clamps 41 at both ends of the current-carrying line 42 are respectively connected to the horizontal duct 5 and the inclined duct 6. The current-carrying line 42 is pre-bent into an arc shape, so that the current-carrying assembly 4 has the overall flexibility and can be appropriately adjusted according to the actual installation position. On the other hand, it is set above the junction of the horizontal duct 5 and the inclined duct 6 to ensure the electrical anti-corona requirements of the current-carrying hardware.

[0051] The present invention discloses an installation method for a multi-directional adjustable reinforced pipe busbar support overcurrent fitting suitable for high-wind areas, as follows:

[0052] The base 1 is bolted to the flange 7 on the post insulator through the insulator mounting hole 11 to ensure that the load is evenly distributed; then the horizontal support assembly 2 is bolted to the horizontal support assembly mounting hole 12 of the base 1, and the upper and lower clamps of the horizontal support assembly 2 are adjusted to clamp the horizontal tube nut 5 to form a rigid support.

[0053] Pass the support rod 33 through the support rod through hole 321 to fit the steering block 32 onto the support rod 33, and then fit the support tube 31 onto the support rod 33; insert the support rod 33 into the support rod mounting hole 14 of the suspended part of the base 1, and tighten it with double nuts to prevent loosening; pass the bolt through the threaded hole 322, and connect both ends of the bolt to the U-shaped head 341; fit the nylon sleeve 35 onto the connecting rod 342 through the sliding hole 352, and fix the clamp 36 and the nylon sleeve 35 together; one end of the connecting rod 342 extends into the inclined tube 6 along the axis of the inclined tube 6, and clamps the inclined tube 6 with two clamps 36, and the clamps 36 are fixedly connected by bolts.

[0054] The two ends of the flow line 42 are welded to two flow clamps 41 respectively. One flow clamp 41 is installed on the horizontal pipe 5 and the other flow clamp 41 is installed on the inclined pipe 6. The flow line 42 is pre-bent into an arc shape and set above the junction of the horizontal pipe 5 and the inclined pipe 6.

[0055] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-directional adjustable reinforced pipe busbar support for overcurrent applications in windy areas, characterized in that, It includes a base (1), a horizontal support assembly (2), an inclined support assembly (3), and a current-carrying assembly (4); the base (1) is set on the flange (7) at the top of the post insulator; the base (1) is connected to the horizontal support assembly (2); the horizontal support assembly (2) is connected to the horizontal nut (5); the base (1) is connected to the inclined support assembly (3); the inclined support assembly (3) is rotatably connected to the inclined nut (6); one end of the current-carrying assembly (4) is connected to the horizontal nut (5), and the other end is connected to the inclined nut (6).

2. The multi-directional adjustable reinforced pipe busbar support for overcurrent protection in windy areas according to claim 1, characterized in that, The base (1) includes a cantilevered portion extending along the outside of the flange (7); the inclined support assembly (3) is connected to the cantilevered portion.

3. A multi-directional adjustable reinforced pipe busbar support for overcurrent protection suitable for high-wind areas according to claim 2, characterized in that, The suspended part is provided with stiffening plates (13).

4. A multi-directional adjustable reinforced pipe busbar support for overcurrent protection in windy areas according to claim 2, characterized in that, The suspended part is provided with a support rod mounting hole (14); the support rod mounting hole (14) and the inclined support assembly (3) are connected by bolts.

5. A multi-directional adjustable reinforced pipe busbar support for overcurrent protection in windy areas according to claim 4, characterized in that, The inclined support assembly (3) includes a support tube (31), a steering block (32), a support rod (33), a connecting frame (34), a nylon sliding sleeve (35), and a clamp (36); the support rod mounting hole (14) and the support rod (33) are connected by bolts; the steering block (32) has a support rod through hole (321) and a threaded hole (322); the support rod (33) is connected to the steering block (32) through the through hole (321); the support tube (31) is coaxially sleeved on the outside of the support rod (33); the support rod ( 33) A limiting boss is provided at one end; one end of the steering block (32) is connected to the top of the support tube (31), and the other end is connected to the limiting boss; the connecting frame (34) is connected to the steering block (32) by a bolt through the threaded hole (322); one end of the connecting frame (34) extends into the inclined tube mother (6) along the axial direction; a nylon sleeve (35) is slidably provided on the connecting frame (34); the nylon sleeve (35) is connected to the clamp (36); the clamp (36) is sleeved on the outside of the inclined tube mother (6) along the axial direction.

6. A multi-directional adjustable reinforced pipe busbar support for overcurrent protection in windy areas according to claim 5, characterized in that, The connecting frame (34) includes a U-shaped head (341) and a connecting rod (342); the two sides of the U-shaped head (341) are connected by bolts through threaded holes (322) and steering blocks (32); one end of the connecting rod (342) is connected to the U-shaped head (341), and the other end extends into the inclined tube nut (6) along the axial direction of the inclined tube nut (6).

7. A multi-directional adjustable reinforced pipe busbar support for overcurrent protection in high-wind areas according to claim 5, characterized in that, The clamp (36) includes two symmetrically arranged clamp bodies; a clamping cavity (361) is formed inside the two clamp bodies; the clamping cavity (361) matches the outer contour of the inclined tube mother (6).

8. A multi-directional adjustable reinforced pipe busbar support for overcurrent protection in windy areas according to claim 1, characterized in that, The flow-through assembly (4) includes a flow-through clamp (41) and a flow-through line (42); both ends of the flow-through line (42) are provided with flow-through clamps (41), and the flow-through clamps (41) at both ends of the flow-through line (42) are respectively connected to the horizontal duct (5) and the inclined duct (6).

9. A multi-directional adjustable reinforced pipe busbar support for overcurrent protection in windy areas according to claim 8, characterized in that, The flow line (42) is arc-shaped and is located above the junction of the horizontal tube (5) and the inclined tube (6).

10. A multi-directional adjustable reinforced pipe busbar support for high-wind areas according to claim 1, characterized in that, The base (1) is provided with an insulator mounting hole (11) and a horizontal support assembly mounting hole (12); the flange (7) is connected to the base (1) by bolts passing through the insulator mounting hole (11); the horizontal support assembly mounting hole (12) and the horizontal support assembly (2) are connected by bolts.

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