CN218216575U

CN218216575U - High-voltage tube bus telescopic hardware support

Info

Publication number: CN218216575U
Application number: CN202221959551.7U
Authority: CN
Inventors: 谌阳; 简翔浩; 李沛准; 郝为瀚; 谢颍河; 刘生; 姚会娟; 刘继权
Original assignee: China Energy Engineering Group Guangdong Electric Power Design Institute Co Ltd
Current assignee: China Energy Engineering Group Guangdong Electric Power Design Institute Co Ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2023-01-03
Anticipated expiration: 2032-07-26

Abstract

The utility model discloses a high-voltage tube bus telescopic hardware support, which comprises a base, a pillar, a support frame, a first tube bus clamp and a second tube bus clamp; a support is fixedly arranged on the base, a support frame is arranged on the support, and a first tube bus clamp and a second tube bus clamp are respectively arranged at two ends of the support frame; a first rolling shaft is fixedly arranged at the bottom of the first pipe bus clamp, and two ends of the first rolling shaft are in sliding penetration connection with the first sliding groove; a second roller is fixedly arranged at the bottom of the second pipe bus clamp, and two ends of the second roller are in sliding penetration connection with the second sliding groove; the bottom that the second pipe generating line pressed from both sides is equipped with the slider, and the bottom of slider slides with the surface friction of support frame, and the slider is connected with spring and baffle respectively along its moving direction's both sides, and the baffle sets firmly on the support frame, and the both ends of spring are connected with baffle and slider respectively. Adopt the utility model discloses, can guarantee fixed and the operation safety under the strong wind macroseism environment of tub generating line when the operation at ordinary times to can reduce the area of transformer substation.

Description

High-voltage tube bus telescopic hardware support

Technical Field

The utility model relates to the technical field of electrical equipment, especially, relate to a flexible gold utensil of high-voltage tube generating line supports.

Background

The investigation of the earthquake disaster of the current power system shows that the damage of the electrical equipment in the earthquake is mainly high-voltage equipment with voltage class of 500kV or below and containing large-scale porcelain bushings, and the damage condition of the line is relatively light. Therefore, the shock resistance of the transformer substation equipment is improved, and the overall reliability of the power supply system under the earthquake condition can be effectively improved. In the porcelain bushing equipment which is easy to be affected, if single electrical equipment such as a circuit breaker, a disconnecting switch and the like is damaged, the power supply of a loop where the single electrical equipment is located can be affected, but if a bus system is damaged, the total station can be stopped. In China, a central substation serving as a certain plot for power supply and distribution is usually a 110kV or 220kV substation, and a power grid system structure is usually radial, which means that if the central substation has a power failure, the power failure of the whole plot can be caused, so that not only can secondary damage be increased, but also great inconvenience is brought to production and life recovery after earthquake disaster.

At present, 110kV and 220kV transformer substations are mostly arranged in an open mode, and high-voltage buses mostly adopt a support type tubular bus mode. In order to improve the shock resistance, the tubular busbar is generally disconnected at each supporting point and is connected by adopting a tubular busbar telescopic hardware fitting so as to reduce the stress of the tubular busbar at the supporting point during the earthquake as much as possible. Because the expansion and contraction effect of the tubular bus bar needs to be considered, the support of the telescopic hardware fitting in the current engineering generally adopts a mode of combining a fixed type and a sliding type. However, under the earthquake condition, the fixed pivot and the post insulator are still in hard connection, so that large stress is easily generated at the end part of the post insulator, the insulator is damaged, a bus system of a transformer substation is damaged, and power failure of the whole station is further caused.

In addition, in coastal areas which are high earthquake intensity areas and strong wind areas, in order to avoid damaging the tubular bus and the post insulators during earthquake, at present, flexible conductors are mostly adopted as buses in substations in the areas. However, the flexible busbar fitting is easily broken due to severe sway of the conductor due to the influence of typhoon. In addition, considering that the windage yaw of the wires needs to increase the phase ground and the distance between phases, the occupied area of the transformer substation is correspondingly increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a flexible gold utensil of high-pressure tubular busbar supports to replace traditional fixed stay point, can improve the shock resistance of the flexible gold utensil of tubular busbar.

In order to realize the purpose, the utility model discloses a technical scheme be: a high-voltage tube bus telescopic hardware support comprises a base, a pillar, a support frame, a first tube bus clamp and a second tube bus clamp;

a support is fixedly arranged on the base, a support frame is arranged on the support, a first pipe bus clamp is arranged at one end of the support frame, and a second pipe bus clamp is arranged at the other end of the support frame; the supporting frame is provided with a first sliding groove and a second sliding groove which are parallel to each other and extend along the length direction of the supporting frame, and the first sliding groove and the second sliding groove are symmetrically arranged by taking the supporting column as a center;

a first rolling shaft is fixedly arranged at the bottom of the first pipe bus clamp, and two ends of the first rolling shaft are in sliding penetration connection with the first sliding groove; a second roller is fixedly arranged at the bottom of the second pipe bus clamp, and two ends of the second roller are in sliding connection with the second sliding groove; the bottom of the second pipe bus clamp is provided with a sliding block, the bottom of the sliding block slides in a friction mode with the surface of the support frame, two sides of the sliding block in the moving direction are respectively connected with a spring and a baffle, the baffle is fixedly arranged on the support frame, one end of the spring is connected with the baffle, and the other end of the spring is connected with the sliding block.

As a preferred scheme of the utility model, be equipped with the recess on the support frame, first sliding tray with the second sliding tray all can set up on the cell wall of recess.

As the preferred scheme of the utility model, the support frame with be equipped with post insulator between the pillar.

As the preferred scheme of the utility model, the support frame with between the post insulator and the post insulator with all through screw fixed connection between the pillar.

As an optimized scheme of the utility model, the both ends of second sliding tray are equipped with the shell fragment.

As the preferred scheme of the utility model, the shell fragment passes through screw fixed connection and is in the outside of support frame, the tip of second roller bearing stretches out the second sliding tray.

As the preferred scheme of the utility model, first tub of generating line presss from both sides with be equipped with at least one connecting strand between the second tub of generating line presss from both sides.

As the utility model discloses a preferred scheme, the bottom that the second pipe generating line pressed from both sides has set firmly connecting portion, connecting portion welded fastening is in on the slider, the second roller bearing is worn to establish on the connecting portion, the second roller bearing passes through the bolt to be fixed on the connecting portion.

Implement the utility model provides a pair of flexible gold utensil of high-voltage tube generating line supports, compares with prior art, and its beneficial effect lies in:

the high-voltage tubular bus telescopic hardware support of the utility model has the advantages that the support mode with the damping slider system is arranged to replace a fixed support mode, so that the fixation of the tubular bus in normal operation can be ensured, and the support insulator is prevented from being damaged under the strong wind and strong shock conditions; and the stress generated by the tubular bus to the end part of the post insulator can be limited within an allowable range, so that the operation safety of the tubular bus in a strong wind and strong earthquake environment is ensured, the floor area of a transformer substation is reduced, and further, the land resource is saved. In addition, through set up the shell fragment at the both ends of second sliding tray, can further play the effect of shock attenuation buffering.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.

Fig. 1 is a schematic structural diagram of a high-voltage tube bus telescopic hardware support according to an embodiment of the present invention;

fig. 2 is a schematic view of the first tube bus-bar clamp in connection with the first roller;

FIG. 3 is a schematic view of the second tube bus clamp in connection with the second roller;

FIG. 4 isbase:Sub>A cross-sectional view taken along line A-A in the configuration shown in FIG. 3;

fig. 5 is a cross-sectional view taken along line B-B in the structure shown in fig. 3.

The labels in the figure are:

a base 1; a pillar 2; a support frame 3; a first tube bus-bar clamp 4; a second tube bus-bar clamp 5; a first slide groove 6; a second slide groove 7; a first roller 8; a second roller 9; a slider 10; a spring 11; a baffle plate 12; a groove 13; a tubular bus bar 14; a post insulator 15; a spring plate 16; connecting a stranded wire 17; a connecting portion 18; a latch 19.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

As shown in fig. 1 to 5, the preferred embodiment of the present invention provides a high voltage tube bus bar telescopic hardware support, which comprises a base 1, a pillar 2, a support frame 3, a first tube bus bar clamp 4 and a second tube bus bar clamp 5. A support column 2 is fixedly arranged on the base 1, a support frame 3 is arranged on the support column 2, a first pipe bus clamp 4 is arranged at one end of the support frame 3, and a second pipe bus clamp 5 is arranged at the other end of the support frame 3; the support frame 3 is equipped with two and is parallel to each other and follows 3 length direction of support frame extends the first sliding tray 6 and the second sliding tray 7 that set up, first sliding tray 6 with second sliding tray 7 with pillar 2 sets up as central symmetry. The supporting frame 3 is provided with a groove 13, and both the first sliding groove 6 and the second sliding groove 7 can be arranged on the wall of the groove 13. During installation, the first pipe bus clamp 4 clamps the end of one pipe bus 14, and the second pipe bus clamp 5 clamps the end of the other pipe bus 14.

A first rolling shaft 8 is fixedly arranged at the bottom of the first pipe bus clamp 4, and two ends of the first rolling shaft 8 are in sliding penetration connection with the first sliding groove 6; a second roller 9 is fixedly arranged at the bottom of the second pipe bus clamp 5, and two ends of the second roller 9 are in sliding connection with the second sliding groove 7; the bottom of the second pipe bus clamp 5 is provided with a sliding block 10, the bottom of the sliding block 10 slides with the surface of the support frame 3 in a friction mode, two sides of the sliding block 10 in the moving direction are respectively connected with a spring 11 and a baffle 12, the baffle 12 is fixedly arranged on the support frame 3, one end of the spring 11 is connected with the baffle 12, and the other end of the spring 11 is connected with the sliding block 10.

It can be understood that, because the friction force of the sliding block 10 to the support frame 3 is large, when no earthquake occurs, the sliding block can be used as a fixed support point when the tubular busbar 14 runs. When an earthquake occurs and the intensity is high, the sliding block 10, the spring 11 and the tubular bus 14 form a damping system A, and the damping system A plays a role in damping and buffering; more specifically, the slider 10 starts to slide, converts kinetic energy into frictional heat energy and temporarily stores the energy in the spring 11, and dissipates the energy by frictional heat generation to reduce the maximum stress of the end of the post insulator 15; after the earthquake is over, the springs 11 at the two ends of the slider 10 can reset the slider 10 to the original position, so that the slider 10 has enough sliding space when the next earthquake occurs.

For example, a post insulator 15 is arranged between the support frame 3 and the post 2, and can resist the voltage of the electrical equipment; meanwhile, the tubular busbar can resist the deformation stress of the tubular busbar 14 caused by expansion with heat and contraction with cold and the inertia mass effect of the tubular busbar 14 in earthquake. More specifically, the support frame 3 and the post insulator 15 and the post 2 are all fixedly connected by screws. It can be understood that the first roller 8 slides in the first sliding groove 6, so that the deformation pressure generated by the change of the environmental temperature of the tubular bus 14 can be prevented from acting on the post insulator 15, and the post insulator 15 can be prevented from being broken; meanwhile, when an earthquake occurs, the inertial mass of the tubular bus 14 can be prevented from acting on the top of the post insulator 15, and the post insulator 15 is prevented from being broken.

Illustratively, the two ends of the second sliding groove 7 are provided with elastic pieces 16, which can further play a role of shock absorption and buffering. When the seismic energy is continuously applied to the damping system a at a frequency, the vibration frequency of the post insulator 15 may be close to the natural frequency of the damping system a, thereby forming a resonance phenomenon. Further, if the vibration frequency of the slider 10 is close to the natural frequency of the damping system a, the second roller 9 will form a new damping system B with the elastic sheet 16 when contacting the elastic sheet 16, thereby destroying the natural frequency of the original system, limiting the resonance within a small range, and achieving the effect of further damping and buffering; when the vibration amplitude of the slider 10 is large but not reaching the natural frequency of the damping system a, the elastic sheet 16 can also protect the second roller 9 from hard collision with the support frame 3.

Illustratively, the elastic sheet 16 is fixedly connected to the outside of the support frame 3 through a screw, and an end of the second roller 9 extends out of the second sliding groove 7. This ensures that the second roller 9 and the spring piece 16 can abut against each other.

Illustratively, at least one connecting stranded wire 17 is arranged between the first pipe bus-bar clamp 4 and the second pipe bus-bar clamp 5, and the connecting stranded wire 17 plays a role in guiding and shielding.

Illustratively, a connecting portion 18 is fixedly arranged at the bottom end of the second pipe bus-bar clamp 5, the connecting portion 18 is welded and fixed on the sliding block 10, the second roller 9 is arranged on the connecting portion 18 in a penetrating manner, and the second roller 9 is fixed on the connecting portion 18 through a pin 19. Therefore, the bolt 19 can limit the second roller 9 to ensure that the second roller 9 slides normally on the second sliding groove 7 and the second roller 9 and the slider 10 are linked normally when an earthquake occurs.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A high-voltage tube bus telescopic hardware support is characterized by comprising a base, a pillar, a support frame, a first tube bus clamp and a second tube bus clamp;

a first rolling shaft is fixedly arranged at the bottom of the first pipe bus clamp, and two ends of the first rolling shaft are in sliding penetration connection with the first sliding groove; a second roller is fixedly arranged at the bottom of the second pipe bus clamp, and two ends of the second roller are in sliding connection with the second sliding groove; the bottom of the second tube bus clamp is provided with a sliding block, the bottom of the sliding block slides in a friction manner with the surface of the support frame, two sides of the sliding block in the moving direction are respectively connected with a spring and a baffle plate, the baffle plate is fixedly arranged on the support frame, one end of the spring is connected with the baffle plate, and the other end of the spring is connected with the sliding block; and elastic pieces are arranged at two ends of the second sliding groove.

2. The telescopic hardware support for the high-voltage tubular busbar according to claim 1, wherein a groove is formed in the support frame, and both the first sliding groove and the second sliding groove can be formed in a groove wall of the groove.

3. The telescopic hardware support for the high-voltage tubular busbar according to claim 1, wherein a post insulator is arranged between the support frame and the post.

4. The telescopic hardware support for the high-voltage tubular busbar according to claim 3, wherein the support frame is fixedly connected with the post insulator and the post insulator is fixedly connected with the post through screws.

5. The high-voltage tube bus telescopic hardware support of claim 1, wherein the elastic sheet is fixedly connected to the outside of the support frame through screws, and the end of the second roller extends out of the second sliding groove.

6. The telescopic hardware support of the high-voltage tubular busbar according to claim 1, wherein at least one connecting stranded wire is arranged between the first tubular busbar clamp and the second tubular busbar clamp.

7. The high-voltage tube bus bar telescopic hardware support as claimed in claim 1, wherein a connecting portion is fixedly disposed at a bottom end of the second tube bus bar clamp, the connecting portion is welded and fixed to the slider, the second roller is disposed on the connecting portion in a penetrating manner, and the second roller is fixed to the connecting portion through a pin.