A GIS system busbar auxiliary installation device

Abstract

This utility model discloses an auxiliary installation device for busbars in a GIS system, comprising a main body, traveling wheels, and a retrieval rope. The main body is an arc-shaped plate structure with an inner arc side and an outer arc side. The inner arc side is used to support the busbar to be installed. At least three traveling wheels are arranged opposite each other and are all installed on the outer arc side. The retrieval rope is connected to the main body. Using this device to install busbars in a GIS system offers advantages such as convenient installation, reduced installation difficulty, improved installation efficiency, and reduced risk of damage to the inner wall insulation varnish of the sleeve due to collisions between the busbar and the sleeve during installation, thereby ensuring the safe operation of the GIS device.

Description

Technical Field

[0001] This utility model relates to the field of gas-insulated switchgear technology, and in particular to an auxiliary installation device for busbars in a GIS system. Background Technology

[0002] Gas-insulated switchgear (GIS) is widely used in high-voltage and ultra-high-voltage applications such as 110kV, 220kV, and 500kV. GIS consists of circuit breakers, disconnectors, grounding switches, current transformers, voltage transformers, surge arresters, busbars, connectors, and outgoing terminals. GIS assembles various functional units into a bay, mainly including incoming bays, outgoing bays, busbar junction bays, and metering and protection bays. These bays are electrically connected by busbars, which are made of copper and installed within busbar sleeves.

[0003] During the actual installation, first install the bay on one side, then fix the sleeve to the bay, then insert the three busbars into the sleeve in sequence and insert them into the busbar plug of the bay, and finally install the bay on the other side.

[0004] The sleeve is 0.6m-3m long and 0.5m-0.8m in diameter. The busbar is quite heavy, which can cause the busbar to shake up and down during the installation process, making it extremely difficult to insert the corresponding busbar plug. Furthermore, if the busbar hits the inside of the sleeve, it will damage the insulating varnish on the inside of the sleeve, resulting in a decrease in the sleeve's withstand voltage performance and a risk of short circuit after operation. Utility Model Content

[0005] To address the aforementioned issues, this application provides an auxiliary installation device for busbars in a GIS system.

[0006] This application provides an auxiliary installation device for busbars in a GIS system, including a main body, traveling wheels, and a retrieval rope. The main body is an arc-shaped plate structure with an inner arc side and an outer arc side. The inner arc side is used to support the busbar to be installed. At least three traveling wheels are arranged opposite each other and are all installed on the outer arc side. The retrieval rope is connected to the main body.

[0007] In some implementations, the GIS system busbar auxiliary installation device is equipped with three traveling wheels, which are distributed in a triangular pattern.

[0008] In some embodiments, the walking wheel includes a wheel portion and a connecting portion connected to the wheel portion. The connecting portion is connected to the main body on the outer arc side and has a height adjustment function.

[0009] In some embodiments, the connecting part includes a threaded rod and a handle connected to the top of the threaded rod. The threaded rod is threadedly connected to the main body and passes through the outer arc side of the main body. The end of the threaded rod away from the handle is connected to the wheel. The main body has an inner cavity, and the two ends of the main body in the axial direction are open. The inner cavity communicates with the open. The handle is located in the inner cavity.

[0010] In some embodiments, a nut is welded to the outer arc side of the main body, the inner hole of the nut penetrates the outer arc side, and the threaded rod is threadedly connected to the nut.

[0011] In some embodiments, the main body is further provided with a structural reinforcement located in the inner cavity, the structural reinforcement being connected between the outer arc side and the inner arc side.

[0012] In some implementations, one end of the recovery rope is connected to the outer arc side of the main body.

[0013] In some implementations, the wheel section is a caster wheel structure.

[0014] In some implementations, the wheel surface is made of nylon.

[0015] In some implementations, the length of the recovery rope is limited to a length not less than that of the sleeve through which the busbar passes.

[0016] The beneficial effects of this application are as follows: It provides an auxiliary installation device for busbars in a GIS system. With the sleeve already fixed to one side of the spacer, the device is placed inside the sleeve, allowing the wheels to travel along the inner wall of the sleeve. The busbar to be installed is placed on the inner arc side of the main body. Under the influence of gravity, there will be considerable static friction between the busbar and the inner arc side of the main body. The operator pushes the busbar, causing the device and the busbar to move together deeper into the sleeve until the busbar is close to the spacer connected to the sleeve. At this point, the device has fully lifted the busbar, and the operator... Pressing down one end of the busbar causes the end of the busbar located deep within the sleeve to tilt upwards, bringing it closer to the busbar plug. This facilitates manual insertion of the busbar into the plug. After installation, the operator pulls the device out of the sleeve using a retrieval rope. Using this device for busbar installation in GIS systems offers advantages such as ease of installation, reduced installation difficulty, increased efficiency, and reduced risk of damage to the sleeve's inner insulating varnish due to collisions between the busbar and the sleeve during installation, thus ensuring the safe operation of the GIS device. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model.

[0018] Figure 1 A schematic diagram showing the busbar being inserted into the sleeve and connected to the busbar plug;

[0019] Figure 2 This is a structural schematic diagram of an auxiliary installation device for a GIS system busbar, provided in this application.

[0020] Attached diagram labels: 100-Main body, 110-Inner arc side, 120-Outer arc side, 121-Nut, 130-Opening, 200-Walking wheel, 210-Wheel part, 220-Connecting part, 221-Threaded rod, 222-Handle, 300-Recovery rope, 21-Busline plug, 22-Sleeve, 23-Busline bar, 24-Gap. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity purposes and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials; however, those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0023] Please refer to Figure 1 , Figure 1 This diagram illustrates the insertion of the busbar 23 into the sleeve 22 and its connection with the busbar plug 21. During installation, first determine the interval 24 to be connected to one side of the sleeve 22, and then fix this interval 24. Figure 1 The busbar plug 21 is shown, and the plate containing the busbar plug 21 belongs to the bay 24. After the bay 24 is fixed, the sleeve 22 is fixed to the bay 24. The sleeve 22 and the bay 24 are connected by a flange. Then comes the installation process of the busbar 23, which is the subject of this application. The three busbars 23 need to be inserted into the sleeve 22 in sequence, and the three busbars 23 are respectively connected to the three busbar plugs 21.

[0024] Please refer to Figure 2This utility model discloses an auxiliary installation device for busbars in a GIS system, hereinafter referred to as "this device". The device includes a main body 100, wheels 200, and a recovery rope 300. The main body 100 is an arc-shaped plate structure with an inner arc side 110 and an outer arc side 120. At least three wheels 200 are arranged opposite each other, all mounted on the outer arc side 120. The recovery rope 300 is connected to the main body 100. The inner arc side 110 is used to support the busbar 23 to be installed.

[0025] Please refer to the reference. Figure 1 and Figure 2 With the sleeve 22 already fixed to one side spacer 24, the busbar 23 is installed using this device: First, the device is placed inside the sleeve 22, allowing the traveling wheel 200 to travel along the inner wall of the sleeve 22; then, the busbar 23 to be installed is placed on the inner arc side 110 of the main body 100. At this time, under the influence of gravity, there will be considerable static friction between the busbar 23 and the inner arc side 110 of the main body 100; next, the operator pushes the busbar 23 by hand, which will cause the device to... The busbar 23 is moved together with the sleeve 22 deeper until it is close to the position of the interval 24 connected to the sleeve 22. At this time, the device has fully lifted the busbar 23. The operator presses down one end of the busbar 23 so that the end of the busbar 23 located deep in the sleeve 22 is raised, so that the raised end of the busbar 23 can be closer to the bus plug 21, which is convenient for the next step of manually inserting the busbar 23 into the bus plug 21. Finally, the connection between the busbar 23 and the bus plug 21 is completed.

[0026] After each busbar 23 is installed, the operator pulls the device out from the depth of the sleeve 22 using the recovery rope 300.

[0027] The above describes the process of installing the busbar 23 of the GIS system using this device. This installation process has the advantages of being fast and convenient, reducing the installation difficulty of the busbar 23, improving the installation efficiency, and reducing the risk of damage to the inner wall insulation varnish of the sleeve 22 due to collision between the busbar 23 and the sleeve 22 during the installation process, thereby ensuring the safe operation of the GIS device.

[0028] It is understandable that when using this device to install the busbar 23, when the busbar 23 is naturally placed on the inner arc side 110 of the main body 100 of this device, the height of the busbar 23 is less than the height of the busbar plug 21 to be connected, and the busbar 23 is about 10mm lower than the busbar plug 21.

[0029] In some embodiments, the device is provided with three wheels 200, which are distributed in a triangular pattern. The stability of the triangle makes the device move stably and smoothly within the sleeve 22.

[0030] The above content mentions that: the device has fully raised the busbar 23, and the operator presses down one end of the busbar 23 so that the end of the busbar 23 located deep in the sleeve 22 tilts up, allowing the tilted end of the busbar 23 to be closer to the busbar plug 21. Since the height of the busbar plug 21 can vary, the traveling wheels 200 need further design to have a height adjustment function, thereby increasing the applicability of the device and enabling it to raise the busbar 23 to a position as close as possible to the current plug height during installation.

[0031] Regarding the height adjustment function of the 200-type wheels, please refer to the following for details. Figure 2 The traveling wheel 200 includes a wheel portion 210 and a connecting portion 220 connected to the wheel portion 210. The connecting portion 220 is connected to the main body 100 on the outer arc side 120. The connecting portion 220 has a height adjustment function. The connecting portion 220 can adjust its own height to adjust the distance between the wheel portion 210 and the outer arc side 120 of the main body 100, thereby adjusting the distance between the inner arc side 110 of the main body 100 and the sleeve 22, thereby adjusting the distance between the busbar 23 located on the inner arc side 110 and the sleeve 22.

[0032] The connecting part 220 has a height adjustment function, which can be achieved by means of an electrically controlled telescopic rod or the like. The inventor provides one possible implementation method, please refer to [reference needed]. Figure 2 The connecting part 220 includes a threaded rod 221 and a handle 222. The handle 222 is connected to the top end of the threaded rod 221, and the other end of the threaded rod 221 is connected to the wheel part 210. The threaded rod 221 is threadedly connected to the main body 100, and forms a form in which the threaded rod 221 passes through the outer arc side 120 of the main body 100. The main body 100 has an inner cavity, and the two ends of the main body 100 in the axial direction are open 130. The inner cavity is connected to the open 130. The handle 222 is located in the inner cavity. The operator can put his hand near the handle 222 and drive the threaded rod 221 to rotate relative to the main body 100 through the handle 222. This adjusts the length of the protruding part of the threaded rod 221 on the outer arc side 120 of the main body 100, thereby adjusting the distance between the wheel part 210 and the outer arc side 120 of the main body 100, and realizing the purpose of adjusting the distance between the busbar 23 and the sleeve 22 located on the inner arc side 110.

[0033] In some implementation methods, please refer to Figure 2 The main body 100 is welded with a nut 121 on the outer arc side 120. The inner hole of the nut 121 penetrates the outer arc side 120. The threaded rod 221 is threadedly connected to the nut 121, and the threaded connection between the threaded rod 221 and the main body 100 is achieved through the nut 121.

[0034] In some embodiments, the main body 100 is further provided with a number of structural reinforcement members, which are located in the inner cavity and connected between the outer arc side 120 and the inner arc side 110, thereby enhancing the structural stability of the device.

[0035] In some implementation methods, please refer to Figure 2 One end of the recovery rope 300 is connected to the outer arc side 120 of the main body 100. Based on this, the recovery rope 300 can be gathered into the inner cavity of the main body 100, which facilitates the storage and placement of the recovery rope 300 when it is not in use.

[0036] In some embodiments, the wheel 210 is a caster wheel structure, which makes the movement of the device along the sleeve 22 smoother.

[0037] In some embodiments, the wheel surface of the wheel portion 210 is made of nylon material, which can improve the adverse wear of the wheel portion 210 on the inside of the sleeve 22 and improve the protection effect on the insulating varnish located on the inner wall of the sleeve 22.

[0038] In some embodiments, the length of the recovery rope 300 is limited to not less than the length of the sleeve 22 through which the busbar 23 passes. In actual use, the inventors chose a scheme in which the recovery rope 300 is more than 50 mm longer than the sleeve 22.

[0039] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0040] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0041] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. An auxiliary installation device for busbars in a GIS system, characterized in that, include: The main body is an arc-shaped plate structure with an inner arc side and an outer arc side, wherein the inner arc side is used to support the busbar to be installed; The traveling wheels are provided with at least three opposite each other and are all mounted on the outer arc side; and The recovery rope is connected to the main body.

2. The GIS system busbar auxiliary installation device as described in claim 1, characterized in that, The GIS system busbar auxiliary installation device is equipped with three traveling wheels, which are distributed in a triangular pattern.

3. The GIS system busbar auxiliary installation device as described in claim 1, characterized in that, The walking wheel includes a wheel portion and a connecting portion connected to the wheel portion. The connecting portion is connected to the main body on the outer arc side and has a height adjustment function.

4. The GIS system busbar auxiliary installation device as described in claim 3, characterized in that, The connecting part includes a threaded rod and a handle connected to the top end of the threaded rod. The threaded rod is threadedly connected to the main body and passes through the outer arc side of the main body. The end of the threaded rod away from the handle is connected to the wheel. The main body has an inner cavity, and the two ends of the main body are open in the axial direction. The inner cavity is connected to the open, and the handle is located in the inner cavity.

5. The GIS system busbar auxiliary installation device as described in claim 4, characterized in that, The main body is welded with a nut on the outer arc side, the inner hole of the nut penetrates the outer arc side, and the threaded rod is threadedly connected to the nut.

6. The GIS system busbar auxiliary installation device as described in claim 4, characterized in that, The main body is also provided with a structural reinforcement member located in the inner cavity, the structural reinforcement member being connected between the outer arc side and the inner arc side.

7. The GIS system busbar auxiliary installation device as described in claim 4, characterized in that, One end of the recovery rope is connected to the outer arc side of the main body.

8. The GIS system busbar auxiliary installation device as described in any one of claims 3-7, characterized in that, The wheel section is a swivel wheel structure.

9. The GIS system busbar auxiliary installation device as described in any one of claims 3-7, characterized in that, The wheel surface is made of nylon.

10. The GIS system busbar auxiliary installation device as described in claim 1, characterized in that, The length of the recovery rope is limited to not less than the length of the sleeve through which the busbar passes.

Images