CN216450948U

CN216450948U - Built-in high tension switchgear who has arrester

Info

Publication number: CN216450948U
Application number: CN202122865155.XU
Authority: CN
Inventors: 史卫平; 史梦云; 孙丽萍
Original assignee: Zhenjiang Suheng Power Automation Co ltd
Current assignee: Zhenjiang Suheng Power Automation Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-05-06
Anticipated expiration: 2031-11-22

Abstract

The utility model discloses a high-voltage switch cabinet with a built-in arrester, which is technically characterized by comprising a lightning protection assembly and an explosion-proof assembly, wherein the lightning protection assembly and the explosion-proof assembly are both built in the high-voltage switch cabinet; the lightning protection assembly comprises a lightning rod, a first shell and a second shell are wrapped on the surface of the lightning rod, and the first shell and the second shell are combined to form the protection assembly for preventing high-voltage dangerous current from inrush. The utility model discloses a, utilize a plurality of connecting blocks to be provided with a plurality of explosion-proof structure, can be in inside when having the explosion of starting a fire, after the fracture between first casing and connecting bolt, a plurality of second buffering rings not only can play the effect of a buffering location with first buffering ring, can also utilize second buffering ring when being reopened, drive fire-retardant structure and adjacent felting needle puncture release inert gas, play flame retardant efficiency, prevent that overall structure from starting a fire and leading to the cubical switchboard to be burnt out, good guard action has been played, maximize reduction loss.

Description

Built-in high tension switchgear who has arrester

Technical Field

The utility model relates to a high-voltage switch cabinet with a built-in lightning arrester.

Background

The high-voltage switch cabinet is used for power generation, power transmission, power distribution, electric energy conversion and consumption of an electric power system and plays roles of on-off, control or protection and the like. The high-voltage switch cabinet is used as an electric appliance product with the voltage grade of 3.6 kV-550 kV, a high-voltage isolating switch, a grounding switch, a high-voltage load switch, a high-voltage automatic reclosing and sectionalizing device, a high-voltage operating mechanism, a high-voltage explosion-proof power distribution device, a high-voltage switch cabinet and the like.

In a high-voltage switch cabinet, a structure playing a key role in protecting components from surge and other high-voltage hazards is a lightning arrester, and the lightning arrester is an electrical appliance used for protecting electrical equipment from high transient overvoltage hazards and limiting follow current time and normally limiting follow current amplitude.

However, when the instantaneous pressure is too high and is higher than the maximum threshold value that the arrester can bear, phenomena such as explosion or fire may occur, the explosion can directly cause the arrester housing to rush out and damage the internal elements of the switch cabinet, and then the fire can affect the whole high-voltage switch cabinet.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-voltage switch cabinet with a built-in lightning arrester, which aims to solve the problem that the whole switch cabinet is damaged greatly when the lightning arrester is flushed away by airflow or is on fire due to overhigh pressure in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: a high-voltage switch cabinet with a built-in arrester comprises a lightning-arrest component and an explosion-proof component, wherein the lightning-arrest component and the explosion-proof component are both built in the high-voltage switch cabinet;

the lightning protection assembly comprises a lightning rod, the surface of the lightning rod is coated with a first shell and a second shell, and the first shell and the second shell are combined to form a protection assembly for preventing high-voltage dangerous current from inrush;

protection component's inner wall fixedly connected with multiunit connecting block, multiunit explosion-proof component from the top down arranges in proper order on protection component's inner wall surface, and protection component and adjacent connecting block sliding connection, protection component includes that quantity is two threaded rods, two the equidistance all overlaps on the threaded rod and is equipped with two sets of first buffering rings, two sets of second buffering rings and two sets of fire-retardant structures, two one side that the threaded rod is adjacent is provided with four connecting plates, two in the outside the connecting plate is with adjacent first buffering ring fixed connection, inboard two the connecting plate is with adjacent second buffering ring fixed connection, two in the outside one side that the connecting plate is relative is provided with two felting needles, inboard two the inside of connecting plate all is provided with two fire-retardant structures.

Preferably, the surface of the protection component is coated with an insulating flame-retardant coating adhesive, and the insulating flame-retardant coating adhesive is made of an insulating flame-retardant material.

Preferably, one side of the first shell opposite to the second shell is provided with a plurality of groups of connecting bolts, and the first shell is fixedly connected with the second shell through the plurality of groups of connecting bolts.

Preferably, the distance between two adjacent connecting plates is greater than 5 cm.

Preferably, two the threaded rod all is provided with a plurality of screw threads of being connected with first buffering ring and fire-retardant structure, and the length of every group screw thread is three the thickness of first buffering ring, first buffering ring equals with the thickness of fire-retardant structure.

Preferably, the flame-retardant structure comprises a flame-retardant soft shell, the surface of the flame-retardant soft shell is fixedly connected with a positioning ring, the flame-retardant soft shell is connected with the adjacent inner wall of the connecting plate in a clamping manner through the positioning ring, and the inner wall of the flame-retardant soft shell is filled with inert gas.

Preferably, the inside of fire-retardant soft shell is provided with the hinge bar, and the top and the bottom of hinge bar all articulate with the inner wall of fire-retardant soft shell.

Preferably, the wall thickness of the inner walls at two ends of the flame-retardant soft shell is thinner than that of the side walls.

Compared with the prior art, the utility model has the beneficial effects that: the device integrally arranges a first shell and a second shell outside a lightning rod to provide anti-shock protection for the lightning rod, and is matched with insulating flame-retardant coating glue to prevent high-voltage current from flowing into the interior of a switch cabinet, so as to prevent damages to components of the switch cabinet and operators who may open the cabinet door, and a plurality of anti-explosion structures are arranged between the first shell and the second shell to prevent the second shell and the first shell from being directly flushed away to cause damages to the interior of the switch cabinet by sparks or high-voltage explosion generated by high-voltage current breakdown, and when fire and explosion occur in the interior, after the first shell and the connecting bolts are broken, a plurality of second buffer rings and the first buffer rings not only can play a role of buffering and positioning, when the second buffer ring is reopened, the flame-retardant structure and the adjacent pricking pins are driven to puncture and release inert gas, so that the flame-retardant effect is achieved, the switch cabinet is prevented from being burnt due to the fact that the whole structure is on fire, a good protection effect is achieved, and loss is reduced to the greatest extent.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of an explosion proof construction of the present invention;

FIG. 3 is a top deck view of the present invention;

FIG. 4 is an elevational, cross-sectional view of a flame-retardant construction of the utility model;

fig. 5 is an enlarged view of the utility model at a in fig. 3.

In the figure: 1. a lightning protection assembly; 101. a first housing; 102. a second housing; 103. a lightning rod; 104. insulating flame-retardant coating; 105. a connecting bolt; 2. a flame retardant structure; 201. a flame-retardant soft shell; 202. a positioning ring; 203. a hinged lever; 204. an inert gas; 3. connecting blocks; 4. a threaded rod; 5. a connecting plate; 6. a first buffer ring; 7. a second buffer ring; 8. a needle.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a high voltage switch cabinet with a built-in arrester, which includes a lightning protection assembly 1 and an explosion-proof assembly, wherein the lightning protection assembly 1 and the explosion-proof assembly are both built in the high voltage switch cabinet;

the lightning protection assembly 1 comprises a lightning rod 103, wherein the surface of the lightning rod 103 is coated with a first shell 101 and a second shell 102, and the first shell 101 and the second shell 102 are combined to form a protection assembly for preventing high-voltage dangerous current from inrush;

protection component's inner wall fixedly connected with multiunit connecting block 3, multiunit explosion-proof subassembly from the top down arranges the inner wall surface at protection component in proper order, and protection component and 3 sliding connection of adjacent connecting block, protection component includes quantity threaded rod 4 that is two, the equidistance all overlaps on two threaded rod 4 is equipped with two sets of first buffering ring 6, two sets of second buffering ring 7 and two sets of fire-retardant structure 2, two threaded rod 4 adjacent one side is provided with four connecting plates 5, two connecting plates 5 and adjacent first buffering ring 6 fixed connection in the outside, two inboard connecting plates 5 and adjacent second buffering ring 7 fixed connection, two connecting plates 5 relative one side in the outside are provided with two felting needles 8, the inside of two inboard connecting plates 5 all is provided with two fire-retardant structure 2.

In this embodiment, it is preferred, the surface cladding of protection component has insulating fire-retardant coating glue 104, and insulating fire-retardant coating glue 104 makes for insulating fire-retardant material, and the cladding has insulating fire-retardant coating glue 104 and can prevent that high voltage current surge from getting into the inside damage that causes other components and parts of cubical switchboard to also protected inside lightning rod 103 can be because the emergence of the outside structure heavy current breakdown condition.

In this embodiment, preferably, a plurality of sets of connecting bolts 105 are disposed on a side of the first casing 101 opposite to the second casing 102, the first casing 101 and the second casing 102 are fixedly connected by the plurality of sets of connecting bolts 105, and the connecting bolts 105 are disposed to establish connection between the first casing 101 and the second casing 102.

In this embodiment, preferably, the distance between two adjacent connecting plates 5 is greater than 5 centimeters, so that a certain buffer distance can be provided when the first buffer ring 6 and the flame-retardant structure 2 are opened by explosion generated inside, the plurality of groups of connecting plates 5 are prevented from being opened by explosion, and the explosion-proof effect is improved.

In this embodiment, preferably, two threaded rods 4 are all provided with a plurality of threads connected with first buffer ring 6 and flame-retardant structure 2, and the length of each group of threads is the thickness of three first buffer ring 6, and first buffer ring 6 equals with flame-retardant structure 2's thickness, sets up the screw thread but does not set up the screw thread with threaded rod 4's surface entirely, can reduce threaded rod 4 pivoted number of times just can embolia first buffer ring 6 and flame-retardant structure 2.

In this embodiment, preferably, the flame-retardant structure 2 includes a flame-retardant soft shell 201, a positioning ring 202 is fixedly connected to the surface of the flame-retardant soft shell 201, the flame-retardant soft shell 201 is connected to the inner wall of the adjacent connecting plate 5 through the positioning ring 202 in a clamping manner, and the inner wall of the flame-retardant soft shell 201 is filled with an inert gas 204, the inert gas 204 is provided to fill the flame-retardant inert gas, when the flame-retardant soft shell 201 is punctured, the gas is rapidly released, and the positioning ring 202 is matched to provide a flame-retardant effect.

In this embodiment, it is preferable that the inside of the flame-retardant soft shell 201 is provided with a hinge rod 203, the top and the bottom of the hinge rod 203 are both hinged to the inner wall of the flame-retardant soft shell 201, the hinge rod 203 is provided, and the positioning ring 202 is matched to ensure that the flame-retardant soft shell 201 is stably fixed in the inner wall of the connecting plate 5 and does not deviate up and down when contacting the puncture needle 8.

In this embodiment, it is preferable that the inner wall thickness of the flame-retardant soft shell 201 is thinner than that of the side walls, so that the arrangement can be matched with the puncture needle 8 more quickly when the flame-retardant soft shell 201 needs to release the inert gas 204.

Further, the lightning protection effect component installed inside the lightning rod 103 is a zinc oxide varistor used in the existing lightning protection technology, and other connection structures are not introduced too much because of the main technical points of the lightning rod 103 in the present case.

Furthermore, the 203 can only be needed and rotated when the whole flame-retardant soft shell 201 is punctured and deformed, and plays a supporting role when not in operation.

The working principle and the using process of the utility model are as follows: the device integrally arranges a first shell 101 and a second shell 102 outside a lightning rod 103 to provide shock-resistant protection for the lightning rod 103, and is matched with an insulating flame-retardant coating adhesive 104 to prevent high-voltage current from flowing into the interior of a switch cabinet, for the damage caused by components of the switch cabinet and operators which may open the cabinet door, a connecting bolt 105 which provides conventional connection for the first shell 101 and the second shell 102 is arranged between the first shell 101 and the second shell 102, and in order to prevent the damage caused by directly flushing the second shell 102 and the first shell 101 to the interior of the switch cabinet by sparks or high-voltage explosion generated by high-voltage current breakdown, a plurality of explosion-proof structures are arranged by utilizing a plurality of connecting blocks 3, when fire and explosion occur in the interior, after the first shell 101 and the connecting bolt 105 are broken, a plurality of second buffer rings 7 and the first buffer ring 6 can not only play a role of buffering and positioning, when the second buffer ring 7 is turned on again, the flame-retardant structure 2 and the adjacent pricker 8 are driven to puncture to release inert gas, so that the flame-retardant effect is achieved, the switch cabinet is prevented from being burnt due to the fire of the whole structure, a good protection effect is achieved, and the loss is reduced to the greatest extent.

Claims

1. The utility model provides an it has high tension switchgear of arrester which characterized in that to embed: the anti-explosion high-voltage switch cabinet comprises a lightning protection assembly (1) and an anti-explosion assembly, wherein the lightning protection assembly (1) and the anti-explosion assembly are both arranged in the high-voltage switch cabinet;

the lightning protection assembly (1) comprises a lightning rod (103), the surface of the lightning rod (103) is coated with a first shell (101) and a second shell (102), and the first shell (101) and the second shell (102) are combined to form a protection assembly for preventing high-voltage dangerous current from inrush;

the inner wall of the protection component is fixedly connected with a plurality of groups of connecting blocks (3), a plurality of groups of the explosion-proof components are sequentially arranged on the surface of the inner wall of the protection component from top to bottom, and the protection component is adjacent connecting block (3) sliding connection, the protection component includes quantity threaded rod (4) two, two threaded rod (4) are gone up the equidistance and all are equipped with two sets of first buffering ring (6), two sets of second buffering ring (7) and two sets of fire-retardant structure (2), two one side that threaded rod (4) are adjacent is provided with four connecting plate (5), and the outside is two connecting plate (5) and adjacent first buffering ring (6) fixed connection, inboard two connecting plate (5) and adjacent second buffering ring (7) fixed connection, the outside is two one side that connecting plate (5) are relative is provided with two felting needles (8), and inboard two the inside of connecting plate (5) all is provided with two fire-retardant structure (2).

2. The high voltage switch cabinet with built-in arrester as claimed in claim 1, wherein: the surface of the protection component is coated with insulating flame-retardant coating adhesive (104), and the insulating flame-retardant coating adhesive (104) is made of insulating flame-retardant materials.

3. The high voltage switch cabinet with built-in arrester as claimed in claim 1, wherein: a plurality of groups of connecting bolts (105) are arranged on one side of the first shell (101) opposite to the second shell (102), and the first shell (101) is fixedly connected with the second shell (102) through the plurality of groups of connecting bolts (105).

4. The high voltage switch cabinet with built-in arrester as claimed in claim 1, wherein: the distance between two adjacent connecting plates (5) is larger than 5 cm.

5. The high voltage switch cabinet with built-in arrester as claimed in claim 1, wherein: two threaded rod (4) all are provided with a plurality of screw threads of being connected with first buffering ring (6) and fire-retardant structure (2), and the length of every group screw thread is three the thickness of first buffering ring (6), first buffering ring (6) equals with the thickness of fire-retardant structure (2).

6. The high voltage switch cabinet with built-in arrester as claimed in claim 1, wherein: the flame-retardant structure (2) comprises a flame-retardant soft shell (201), a positioning ring (202) is fixedly connected to the surface of the flame-retardant soft shell (201), the flame-retardant soft shell (201) is connected with the adjacent inner wall of the connecting plate (5) in a clamping mode through the positioning ring (202), and inert gas (204) is filled in the inner wall of the flame-retardant soft shell (201).

7. The high voltage switch cabinet with built-in arrester as claimed in claim 6, wherein: the inside of fire-retardant soft shell (201) is provided with articulated rod (203), and the top and the bottom of articulated rod (203) all articulate with the inner wall of fire-retardant soft shell (201).

8. The high voltage switch cabinet with built-in arrester as claimed in claim 6, wherein: the wall thickness of the inner walls at two ends of the flame-retardant soft shell (201) is thinner than that of the side walls.