A vertical compensation support device for a GIL bus equipment

Abstract

A vertical compensation support device for GIL bus equipment, including lower base and upper base, including two parallel and apart support plates in the upper base, N guide compensation devices are vertically installed between the two support plates, the upper support plate can move up and down along the direction of the guide compensation device, the upper surface of the upper end support plate is provided with two symmetrical sliding devices, and the bus is placed on the two sliding devices. The utility model discloses a vertical compensation support device for GIL bus equipment, which has good stability, large installation adjustment margin, is not easy to wear and tear and has strong supporting capacity.

Description

Technical Field

[0001] This utility model relates to the field of high-voltage switchgear transmission equipment technology, specifically a vertical compensation support device for GIL busbar equipment. Background Technology

[0002] In power systems, gas-insulated metal-enclosed switchgear (GIL) is a crucial transmission equipment. Compared to overhead lines and cable systems, GIL offers lower energy loss, higher transmission power, and better economic benefits; it is not limited by bending radius, allowing for compact and flexible layout, achieving the shortest distance through direct burial, trenching, etc., reducing civil engineering and electromechanical costs; and its effective electromagnetic shielding well meets the electromagnetic compatibility requirements of various measurement and control equipment in power plants. GIL busbar equipment has diverse layout methods and complex temperature compensation; in addition to axial deformation displacement, some busbars also experience vertical displacement. Therefore, compensating supports capable of vertical compensation are essential.

[0003] GIL equipment busbar support devices are mainly divided into three types:

[0004] 1. Hydraulic disc springs are typically installed below the vertical shaft of the GIL busbar equipment. Their upper end is fixedly connected to the busbar equipment, and their lower end is fixed to the ground. They compensate for deformation caused by changes in the busbar's length due to thermal expansion and contraction. This type of support device can only compensate for deformation in the vertical direction, occupies a large area, and is cumbersome to inspect and maintain.

[0005] 2. The bolt-on sliding support structure uses a bolt strap fitted onto the busbar. A PTFE plate is placed between the bolt strap, the lower support plate, and the busbar. When the busbar length changes due to thermal expansion and contraction, the busbar can slide along its axial direction within the bolt strap clamp. In this support device, the slider and guide rail are made of steel against steel, resulting in a high coefficient of friction and wear on the sides of the slider and the guide rail. Furthermore, the device cannot compensate for vertical deformation of the busbar.

[0006] 3. Fixed support: The bracket is welded to the busbar tank, and the bracket is fixed to the rigid support frame. In GIL equipment, it serves as an anchoring point. This support only serves as a fixing point and cannot be compensated in any direction. Summary of the Invention

[0007] This utility model addresses the problems existing in the background art by providing a vertical compensation support device for GIL busbar equipment, thus solving the technical problems existing in the prior art.

[0008] This utility model is achieved through the following technical solution: a vertical compensation support device for GIL bus equipment, including a lower base and an upper base, the upper base including two parallel and separated support plates, N guide compensation devices are vertically installed between the two support plates, so that the upper support plate can move up and down along the direction of the guide compensation device, and two symmetrical sliding devices are installed on the upper surface of the upper support plate, and the bus is placed on the two sliding devices.

[0009] The upper part of the lower base is made of H-beams, and the lower part is made of steel plates. The upper H-beams are connected and installed to the bottom of the upper base.

[0010] A tie rod is also provided between the two support plates of the upper base, passing through the two support plates vertically; the tie rod has a nut structure on the upper and lower sides of the upper support plate for limiting the extreme position of the support plate movement.

[0011] The tie rods are located at the four corners of the two support plates.

[0012] The guiding compensation device includes an upper guide cylinder connected to an upper support plate and a lower guide cylinder connected to a lower support plate. The upper guide cylinder is fastened to the outside of the lower guide cylinder and is in clearance fit with the guide cylinder. A guide rod is provided on the axis of the lower guide cylinder. The upper end of the guide rod is connected to the upper guide cylinder, and the lower end of the guide rod passes through the lower guide cylinder and the lower support plate and protrudes out. A spring is provided outside the guide rod. The spring is set in the cavity formed by the upper guide cylinder and the lower guide cylinder. The upper part of the spring contacts the inner top surface of the upper guide cylinder, and the lower part contacts the inner bottom surface of the lower guide cylinder.

[0013] The sliding device includes a shaft and a support roller. The shaft passes through the support roller, one end of the shaft is connected to a right-angle support, and the other end of the shaft is connected to one end of an inclined plate. The other end of the inclined plate is connected to the top of a vertical plate, and the bottom of the vertical plate is connected to an upper support plate. The right-angle support faces upward and is connected to the upper support plate.

[0014] The support rollers are fitted to the outer circumference of the busbar to support the busbar.

[0015] The beneficial effects of this utility model are as follows: This utility model provides a compensation support device for GIL equipment through the above-described structure. The entire device has simple components, reasonable and simple structure, good stability, large installation and adjustment margin, bidirectional adjustment capability, resistance to wear, good friction performance, strong support capacity, and convenient installation. It is mainly used in power systems within corridors. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 yes Figure 1 A schematic diagram of the structure of the central guide compensation device.

[0018] Figure 3 yes Figure 1 A schematic diagram of the sliding device. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments. When the description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatuses consistent with some aspects of the present invention as detailed in the appended claims.

[0020] like Figure 1 As shown, a vertical compensation support device for GIL busbar equipment includes a lower base 1 and an upper base 2. The upper part of the lower base 1 is an H-beam, and the lower part is a steel plate. The upper H-beam is connected to the bottom of the upper base 2 and is the main support of the device, fixed to the ground below. The upper base 2 includes two parallel and separated support plates 2-1. A tie rod 2-2 is provided between the two support plates 2-1, passing through the two support plates 2-1 vertically. The tie rod 2-2 has a nut structure on the upper and lower sides of the upper support plate 2-1 for limiting the extreme positions of the support plate 2-1. The tie rod 2-2 is located at the four corners of the two support plates 2-1.

[0021] like Figure 2 As shown, N guide compensation devices 4 are vertically installed between the two support plates 2-1. Each guide compensation device 4 includes an upper guide cylinder 4-2 connected to the upper support plate 2-1 and a lower guide cylinder 4-3 connected to the lower support plate 2-1. The upper guide cylinder 4-2 is fastened to the outside of the lower guide cylinder 4-3 and is clearance-fitted with the guide cylinder 4-3. A guide rod 4-1 is provided on the axis of the lower guide cylinder 4-3. The upper end of the guide rod 4-1 is connected to the upper guide cylinder 4-2, and the lower end of the guide rod 4-1 is tapered, passing through the lower guide cylinder 4-3 and the lower support plate 2-1 and protruding out. A spring 4-4 ​​is provided outside the guide rod 4-1. The spring 4-4 ​​is set in the cavity formed by the upper guide cylinder 4-2 and the lower guide cylinder 4-3. The upper part of the spring 4-4 ​​contacts the inner top surface of the upper guide cylinder 4-2, and the lower part contacts the inner bottom surface of the lower guide cylinder 4-3. The upper guide cylinder 4-2 can move up and down along the direction of the guide rod 4-1, allowing the upper support plate 2-1 to move up and down along the direction of the guide compensation device 4. The guide compensation device 4 can adjust the required load as needed and flexibly compensate for the vertical deformation of the supporting equipment.

[0022] like Figure 3As shown, two symmetrical sliding devices 3 are installed on the upper surface of the upper support plate 2-1, and the busbar 5 is placed on the two sliding devices 3. The sliding device 3 includes a shaft 3-2 and a support roller 3-1. The shaft 3-2 passes through the support roller 3-1. One end of the shaft 3-2 is connected to the right-angle support 3-3, and the other end of the shaft 3-2 is connected to one end of the inclined plate 3-4. The other end of the inclined plate 3-4 is connected to the top of the vertical plate 3-5, and the bottom of the vertical plate 3-5 is connected to the upper support plate 2-1. The right-angle support 3-3 faces upward at a right angle and is connected to the upper support plate 2-1. The part of the support roller that contacts the busbar is made of plastic. The support roller 3-1 has a concave structure in the middle, so that the surface of the support roller 3-1 can better fit the outer circumference of the busbar 5.

Claims

1. A vertical compensation support device for GIL busbar equipment, comprising a lower base (1) and an upper base (2), characterized in that: The upper base (2) includes two parallel and separate support plates (2-1). N guide compensation devices (4) are vertically installed between the two support plates (2-1) so that the upper support plate (2-1) can move up and down along the direction of the guide compensation device (4). Two symmetrical sliding devices (3) are installed on the upper surface of the upper support plate (2-1), and the busbar (5) is placed on the two sliding devices (3).

2. A vertical compensation support device for GIL busbar equipment according to claim 1, characterized in that: The lower base (1) has an upper part of H-beams and a lower part of steel plates. The upper H-beams are connected to the bottom of the upper base (2).

3. A vertical compensation support device for GIL busbar equipment according to claim 1, characterized in that: The upper base (2) is also provided with a tie rod (2-2) between the two support plates (2-1), which passes through the two support plates (2-1) vertically; the tie rod (2-2) is provided with a nut structure for limiting the movement of the support plate (2-1) on the upper and lower sides of the upper support plate (2-1).

4. A vertical compensation support device for GIL busbar equipment according to claim 3, characterized in that: The tie rod (2-2) is located at the four corners of the two support plates (2-1).

5. A vertical compensation support device for GIL busbar equipment according to claim 1, characterized in that: The guiding compensation device (4) includes an upper guide cylinder (4-2) connected to the upper support plate (2-1) and a lower guide cylinder (4-3) connected to the lower support plate (2-1). The upper guide cylinder (4-2) is fastened to the outside of the lower guide cylinder (4-3) and is in clearance fit with the guide cylinder (4-3). A guide rod (4-1) is provided on the axis of the lower guide cylinder (4-3). The upper end of the guide rod (4-1) is connected to the upper guide cylinder (4-2), and the lower end of the guide rod (4-1) passes through the lower guide cylinder (4-3) and the lower support plate (2-1) and protrudes out. A spring (4-4) is provided on the outside of the guide rod (4-1). The spring (4-4) is set in the cavity formed by the upper guide cylinder (4-2) and the lower guide cylinder (4-3). The upper part of the spring (4-4) contacts the inner top surface of the upper guide cylinder (4-2), and the lower part contacts the inner bottom surface of the lower guide cylinder (4-3).

6. A vertical compensation support device for GIL busbar equipment according to claim 1, characterized in that: The sliding device (3) includes a shaft (3-2) and a support roller (3-1). The shaft (3-2) passes through the support roller (3-1). One end of the shaft (3-2) is connected to a right-angle support (3-3), and the other end of the shaft (3-2) is connected to one end of an inclined plate (3-4). The other end of the inclined plate (3-4) is connected to the top of a vertical plate (3-5), and the bottom of the vertical plate (3-5) is connected to the upper support plate (2-1). The right-angle support (3-3) faces upward at a right angle and is connected to the upper support plate (2-1).

7. A vertical compensation support device for GIL busbar equipment according to claim 6, characterized in that: The support roller (3-1) is in contact with the outer circumference of the busbar (5) to support the busbar (5).

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