Compact environment-friendly gas insulation ring main unit

Abstract

The utility model provides a compact environment-friendly gas insulated ring main unit, which comprises a ring main unit shell provided with a sealing cavity and two parallel vertical side walls arranged at intervals, and the ring main unit shell is provided with a plurality of connecting holes communicated with the sealing cavity; the number of the connecting sleeves is multiple, the connecting sleeves are arranged on the connecting holes in a one-to-one mode, the end, located in the sealing cavity, of each connecting sleeve is provided with a connecting end, and each connecting end is located on the outer side of the corresponding connecting hole in the radial direction of the corresponding connecting hole and can rotate around the axis of the connecting hole. According to the compact type environment-friendly gas insulation ring main unit provided by the utility model, the ring main unit shell is arranged, the plurality of connecting sleeves are arranged in the ring main unit shell, the plurality of connecting sleeves can be arranged in one-to-one correspondence with the plurality of connecting holes in the ring main unit shell, and the connecting end of each connecting sleeve can rotate around the axis of the connecting hole, so that the ring main unit is more compact in structure. The connecting holes corresponding to the connecting ends are located on the outer sides of the connecting holes in the radial direction, so that the connecting ends can be far away from the two vertical side walls.

Description

TECHNICAL FIELD

[0001] The utility model belongs to compact installation technical field, and specifically relates to a compact environment-friendly gas insulation ring main unit. BACKGROUND

[0002] 10-35kV ring main unit is a kind of high-voltage switchgear, mostly SF6 (SF6, namely hexafluoride sulfur, is a kind of colorless, odorless, nontoxic and non-flammable stable gas, chemical formula is SF6) insulation or arc-extinguishing gas-filled switch, this switch will produce toxic gas pollution environment after arc extinguishing, and SF6 gas will produce greenhouse effect, in the environment of environmental protection and emission reduction, it will increase the popularization and application of SF6-free environment-friendly gas insulation ring main unit.The environment-friendly gas insulation ring main unit is a kind of power switchgear using environment-friendly gas as insulation medium, aiming at reducing greenhouse gas emission and environmental pollution.Ring main unit cabinet has two vertically arranged vertical side walls arranged in parallel in horizontal direction, and the current connecting hole is arranged in horizontal direction with interval, and the connecting structure at two ends is arranged close to the vertical side wall.

[0003] In the prior art, when carrying out pilot promotion, the width size of the two vertically arranged vertical side walls arranged in parallel in horizontal direction of the original ring main unit foundation is small, when replacing the environment-friendly gas insulation ring main unit, the width size of the two vertically arranged vertical side walls arranged in parallel in horizontal direction of the environment-friendly gas insulation ring main unit foundation is large, so it is necessary to modify the cabinet of the environment-friendly gas insulation ring main unit adaptively, but the distance between the two vertically arranged vertical side walls arranged in parallel in horizontal direction of the modified ring main unit cabinet and the high-voltage live body in the environment-friendly gas insulation ring main unit is close, and the environment-friendly gas insulation ring main unit after modifying the cabinet cannot meet the use conditions, and the adaptability and practicality are poor. UTILITY MODEL CONTENTS

[0004] The utility model embodiment provides a kind of compact environment-friendly gas insulation ring main unit, to solve the problem of poor adaptability and poor practicality when replacing the existing environment-friendly gas insulation ring main unit.

[0005] To achieve the above object, the technical scheme adopted by the utility model is as follows: provide a kind of compact environment-friendly gas insulation ring main unit, including ring main unit shell, the ring main unit shell has sealed cavity, and has two parallel and interval arranged vertical side walls;Its characterized in that, the ring main unit shell is equipped with multiple connecting holes being communicated with the sealed cavity, and each connecting hole is arranged with interval along the interval direction of two vertical side walls;

[0006] The compact environmentally-friendly gas insulated ring main unit further comprises a plurality of connecting sleeves, each of the connecting sleeves is arranged on each of the connecting holes, each of the connecting sleeves has a connecting end at an end of the sealing cavity, each of the connecting ends is radially located outside the connecting hole along the axis of the connecting hole and can rotate around the axis of the connecting hole.

[0007] In a possible implementation, each of the connecting sleeves comprises:

[0008] A serpentine sleeve having two parallel and spaced circular connecting surfaces, the axes of the two circular connecting surfaces being parallel and spaced;

[0009] A first connecting head arranged on one of the circular connecting surfaces, the first connecting head being electrically connected with the corresponding connecting hole;

[0010] A second connecting head arranged on the other circular connecting surface, the second connecting head being electrically connected with a high-voltage live conductor in the ring main unit shell, and the second connecting head being the connecting end.

[0011] In a possible implementation, each of the first connecting heads is rotationally connected with the corresponding serpentine sleeve, so as to drive the corresponding second connecting head away from the ring main unit shell when the serpentine sleeve rotates.

[0012] In a possible implementation, the two circular connecting surfaces are electrically connected.

[0013] In a possible implementation, the second connecting head is a conductive copper rod.

[0014] In a possible implementation, each of the first connecting heads is provided with a flange plate, and the flange plate is flange-connected with the ring main unit shell.

[0015] Compared with the prior art, in the present implementation, the ring main unit shell is provided, a plurality of connecting sleeves are arranged in the ring main unit shell, the plurality of connecting sleeves can be one-to-one correspondingly arranged with a plurality of connecting holes on the ring main unit shell, the connecting end of each of the connecting sleeves can rotate around the axis of the connecting hole, and the connecting end is radially located outside the connecting hole along the axis of the connecting hole, so that the connecting end can be away from the two vertical side walls, the situation of discharge in air can be avoided, and the compact environmentally-friendly gas insulated ring main unit has good adaptability and good practicability. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 An external connection structure schematic view of the compact environmentally-friendly gas insulated ring main unit provided in the present embodiment;

[0017] Figure 2The utility model provides a compact environmental protection gas insulation ring net cabinet's internal connection structure schematic diagram for the embodiment of the utility model,

[0018] Figure 3 The utility model provides a compact environmental protection gas insulation ring net cabinet connecting sleeve structure schematic diagram for the embodiment of the utility model,

[0019] Mark explanation:

[0020] 10, ring net cabinet shell, 20, connecting sleeve, 21, serpentine sleeve, 22, first connecting head, 221, flange, 23, second connecting head. Specific implementation

[0021] In order to make the technical problem, technical scheme and beneficial effect that the utility model wants to solve more clear and clear, the following combining with the drawing and embodiment, the utility model is further detailedly explained. It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0022] Please see Figures 1 to 3 Together, now the compact environmental protection gas insulation ring net cabinet provided by the utility model is described. The compact environmental protection gas insulation ring net cabinet includes ring net cabinet shell 10, and the ring net cabinet shell 10 has a sealed cavity and has two vertical side walls that are parallel and spaced apart. Its characterized in that the ring net cabinet shell 10 is provided with a plurality of connecting holes communicating with the sealed cavity, and each connecting hole is spaced apart along the spacing direction of the two vertical side walls. The compact environmental protection gas insulation ring net cabinet further includes a plurality of connecting sleeves 20, each connecting sleeve 20 is arranged on each connecting hole, and each connecting sleeve 20 has a connecting end at the end of the sealed cavity. Each connecting end is radially located outside the corresponding connecting hole along the connecting hole, and can rotate around the connecting hole axis.

[0023] The compact environmental protection gas insulation ring net cabinet provided by the embodiment is compared with prior art, and the ring net cabinet shell 10 is provided, a plurality of connecting sleeves 20 are arranged in the ring net cabinet shell 10, the plurality of connecting sleeves 20 can be arranged one by one corresponding to the plurality of connecting holes on the ring net cabinet shell 10, the connecting end of each connecting sleeve 20 can rotate around the connecting hole axis, and the connecting end is radially located outside the corresponding connecting hole. The connecting end can be away from the two vertical side walls, the situation of spaced discharge can be avoided, the adaptability is good, and the practicability is good.

[0024] In some embodiments, the connecting sleeve 20 described above can adopt the structure as shown in Figures 1 to 3 , referring to Figures 1 to 3Each connecting sleeve 20 comprises: a serpentine sleeve 21, a first connecting head 22, and a second connecting head 23. The serpentine sleeve 21 has two circular connecting surfaces arranged in parallel and spaced apart, and the axes of the two circular connecting surfaces are arranged in parallel and spaced apart. The first connecting head 22 is arranged on one of the circular connecting surfaces, and the first connecting head 22 is electrically connected with the corresponding connecting hole. The second connecting head 23 is arranged on the other circular connecting surface, and the second connecting head 23 is electrically connected with the high-voltage live conductor in the ring main unit shell 10. The second connecting head 23 is a connecting end.

[0025] The serpentine sleeve 21 can connect the first connecting head 22 and the second connecting head 23 through the two circular connecting surfaces arranged in parallel and spaced apart, so that the axis of the first connecting head 22 and the axis of the second connecting head 23 are arranged in parallel and spaced apart, so that the second connecting head 23 is away from the corresponding vertical side wall.

[0026] In some embodiments, the above-mentioned first connecting head 22 can adopt the structure as shown in Figures 1 to 3 . Referring to Figures 1 to 3 , each first connecting head 22 is rotationally connected with the corresponding serpentine sleeve 21, for driving the corresponding second connecting head 23 away from the ring main unit shell 10 when the serpentine sleeve 21 rotates.

[0027] The first connecting head 22 can be rotationally connected with the corresponding serpentine sleeve 21, so as to drive the corresponding second connecting head 23 away from the ring main unit shell 10 when the serpentine sleeve 21 rotates.

[0028] In some embodiments, the above-mentioned circular connecting surface can adopt the structure as shown in Figure 2 , Figure 3 . Referring to Figure 2 , Figure 3 , the two circular connecting surfaces are electrically connected.

[0029] Electrical connection refers to forming a stable circuit connection between two or more electrical elements in a certain way, so as to allow current to flow between them.

[0030] In some embodiments, the above-mentioned second connecting head 23 can adopt the structure as shown in Figure 2 , Figure 3 . Referring to Figure 2 , Figure 3 , the second connecting head 23 is a conductive copper rod.

[0031] The conductive copper rod is a metal rod specially used for electrical connection and conduction of current, usually made of high-purity copper material, has good electrical conductivity, can ensure smooth transmission of current and reduce energy loss. The conductive copper rod is a prior art, and will not be described in detail here.

[0032] In some embodiments, the first connecting head 22 can adopt the structure as shown in the drawings. Figures 1 to 3 Referring to the drawings, Figures 1 to 3 Each first connecting head 22 is provided with a flange plate 221, which is flange-connected with the ring main unit shell 10.

[0033] The flange plate 221 is a core component of the flange connection, which is usually a disc-shaped metal body with holes on the edge for fixing and connecting other devices.

[0034] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A compact environmentally friendly gas insulated ring main unit, comprising a ring main unit housing having a sealed cavity and having two vertically oriented side walls arranged in parallel and at a distance from each other; characterized in that, The ring net cabinet shell is provided with a plurality of connecting holes communicating with the sealed cavity, and each connecting hole is arranged along the interval direction of the two vertical side walls. The compact environmentally-friendly gas insulated ring net cabinet further comprises a plurality of connecting sleeves, each connecting sleeve is arranged on each connecting hole, each connecting sleeve has a connecting end at the end of the sealed cavity, each connecting end is radially located outside the corresponding connecting hole along the axis of the connecting hole and can rotate around the axis of the connecting hole.

2. The compact environmentally friendly gas insulated ring main unit according to claim 1, characterized in that, Each connecting sleeve comprises: A serpentine sleeve having two parallel and spaced circular connecting surfaces, the axes of the two circular connecting surfaces are parallel and spaced; A first connecting head arranged on one of the circular connecting surfaces, the first connecting head is electrically connected with the corresponding connecting hole; A second connecting head arranged on the other circular connecting surface, the second connecting head is electrically connected with the high-voltage live conductor in the ring net cabinet shell, and the second connecting head is the connecting end.

3. The compact environmentally friendly gas insulated ring main unit according to claim 2, characterized in that Each first connecting head is rotationally connected with the corresponding serpentine sleeve, so as to drive the corresponding second connecting head away from the ring net cabinet shell when the serpentine sleeve rotates.

4. The compact environmentally friendly gas insulated ring main unit of claim 2, wherein, The two circular connecting surfaces are electrically connected.

5. The compact environmentally friendly gas insulated ring main unit of claim 2, wherein, The second connecting head is a conductive copper rod.

6. The compact environmentally friendly gas insulated ring main unit of claim 2, wherein, Each first connecting head is provided with a flange plate, and the flange plate is flange-connected with the ring net cabinet shell.

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