Metal plate type environment-friendly gas-insulated switchgear with pneumatic terminal

Abstract

The utility model discloses a metal plate type environment-friendly gas-insulated switchgear with pneumatic terminals, which belongs to the technical field of gas-insulated switchgears and comprises a cabinet body, the cabinet body comprises an instrument chamber, a mechanism chamber, a cable chamber and a gas-insulated chamber, reinforcing ribs are fixedly connected to the front surface, the back surface and the top of the cabinet body, the pneumatic terminals are arranged at the tops of the front surface and the back surface of the instrument chamber, and the gas-insulated chamber is arranged on the mechanism chamber. When the gas-insulated switchgear is used, the gas-insulated switchgear is simple and reasonable in structure, few in parts, high in precision, extremely small in deformation, good in corrosion resistance and environmental protection performance, high in degree of isolation from the outside and high in reliability, and the gas-insulated switchgear is formed by stamping and bending stainless steel plates and then welding the stainless steel plates into a whole through laser. The device can adapt to a severe operation environment, is low in maintenance rate, is long in service life, enables a product to reach the parameter indexes of an environment-friendly switch cabinet, is high in safety coefficient, reduces the manufacturing cost, and facilitates the improvement of the practicability of the device.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of inflation cabinet, more particularly to the sheet metal type environmental protection inflation cabinet with pneumatic terminal. BACKGROUND

[0002] The sheet metal type environmental protection inflation cabinet is a key device for electrical equipment protection and maintenance, and is particularly common in high-voltage protection of transformer substations, power distribution equipment and some industrial equipment. It mainly uses gas inflation to maintain a stable environment inside the equipment, thereby ensuring the safety and long-term stable operation of the equipment. The shell of the sheet metal type inflation cabinet is usually made of high-quality metal sheet material, such as steel plate or stainless steel, which is formed through processes such as precision machining, stamping, bending and welding.

[0003] However, the conventional inflation cabinet cannot adapt to different environments such as coastal areas, basin areas, high-cold areas and high-altitude areas, and has unstable operation, short service life, small safety distance of disconnecting switch and circuit breaker, easy production of corona discharge in contact box of traditional plug-in circuit breaker, low safety factor, easy damage, high maintenance cost and great difficulty. Therefore, the sheet metal type environmental protection inflation cabinet with pneumatic terminal is proposed to solve the above problems. SUMMARY

[0004] The utility model discloses a sheet metal type environmental protection inflation cabinet with pneumatic terminal to solve the problems of poor sealing performance of the existing environmental protection inflation cabinet, unstable operation, short service life, small safety distance of disconnecting switch and circuit breaker, easy production of corona discharge in contact box of traditional plug-in circuit breaker, low safety factor, easy damage, high maintenance cost and great difficulty.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] The sheet metal type environmental protection inflation cabinet with pneumatic terminal comprises a cabinet body, the cabinet body comprises an instrument room, a mechanism room, a cable room and an inflation chamber, the front, back and top of the cabinet body are fixedly connected with reinforcing ribs, the front and back of the instrument room are provided with pneumatic terminals on the top, the pneumatic terminals are composed of main female copper pieces and insulators, and the instrument room is arranged on one side of the top of the cabinet body.

[0007] As a further description of the above technical scheme, a connecting opening is arranged between the instrument room and the mechanism room, the mechanism room comprises a circuit breaker chamber and a disconnecting switch chamber, a three-position switch mechanism mounting piece is arranged on one side of the inside of the circuit breaker chamber, and a vacuum circuit breaker mechanism mounting piece is arranged on one side of the inside of the disconnecting switch chamber.

[0008] As a further description of the above technical scheme, the cable chamber comprises an outgoing line chamber and a pressure relief chamber, the outgoing line chamber is provided with an outgoing line port at the bottom of the inner cavity, the pressure relief chamber is provided with a pressure relief opening at the top of the inner cavity, and the pressure relief chamber is connected with the inflation chamber through the pressure relief opening.

[0009] As a further description of the above technical scheme, the inside bottom of the inflation chamber is fixedly provided with an insulator base, one end of the insulator base is fixedly connected with an outgoing line cone tube, the outgoing line cone tube extends to the inside of the outgoing line chamber, and the inside of the inflation chamber is provided with a three-position switch device mounting piece and a vacuum circuit breaker device mounting piece.

[0010] As a further description of the above technical scheme, the two sides of the top of the cabinet body are symmetrically fixedly connected with lifting ring ribs, the sides, close to each other, of the two lifting ring ribs are symmetrically fixedly connected with lifting ring reinforcing ribs, and the bottom of the lifting ring reinforcing rib is fixed to the top of the cabinet body.

[0011] As a further description of the above technical scheme, the instrument chamber, the mechanism chamber, the cable chamber and the inflation chamber are integrally laser welded after being punched and bent from stainless steel plates.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] In use, the inflation cabinet has the advantages of simple and reasonable structure, few parts, high precision, small deformation, good corrosion resistance and environmental protection, high isolation degree from the outside world, low maintenance rate, long service life, reasonable space layout, maximized distance between metal parts, optimized isolation switch and vacuum circuit breaker metal parts, maximized three-phase conducting loop distance, product reaching the parameter index of environmental protection switch cabinet, high safety factor, reduced manufacturing cost, controlled gas in the inflation cabinet through the pneumatic terminal, such as pressure regulation, gas monitoring and leakage detection, effectively reduced human operation errors, improved automation and safety of the inflation cabinet, and improved practicability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is a whole structure schematic view of the utility model.

[0015] Fig. 2 It is an explosion structure schematic view of the main box body of the utility model.

[0016] Fig. 3 It is an internal structure schematic view of the main box body of the utility model.

[0017] Marked: 1, instrument room; 2, mechanism room; 21, circuit breaker room; 22, disconnecting switch room; 3, cable room; 31, outgoing line room; 32, pressure relief room; 4, inflation room; 5, insulator base; 6, pneumatic terminal; 7, lifting ring rib; 8, lifting ring reinforcing rib; 9, three-position switch device mounting; 10, vacuum circuit breaker device mounting; 11, reinforcing rib; 12, three-position switch mechanism mounting; 13, vacuum circuit breaker mechanism mounting; 14, outgoing line cone tube; 15, pressure relief opening; 16, outgoing line port. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings, which show several embodiments of the present application, but the present application can be realized in different forms and is not limited to the embodiments described in the text, on the contrary, these embodiments are provided to make the disclosed content of the present application more thorough and comprehensive.

[0019] The present application provides a sheet metal type environmental protection inflation cabinet with a pneumatic terminal, please refer to Figs. 1-3 As shown in the figure, it comprises a cabinet body, the cabinet body comprises an instrument room 1, a mechanism room 2, a cable room 3 and an inflation room 4, the instrument room 1, the mechanism room 2, the cable room 3 and the inflation room 4 are integrally laser welded after being punched and bent by a stainless steel plate, the front, back and top of the cabinet body are fixedly connected with reinforcing ribs 11, the front and back of the instrument room 1 are provided with pneumatic terminals 6 on the top, the pneumatic terminals 6 are composed of main female connecting copper pieces and cone insulators, and the instrument room 1 is arranged on one side of the top of the cabinet body.

[0020] In the embodiments of the present application, when in use, the instrument room 1 is arranged to facilitate the independent installation of each instrument, thereby facilitating the observation, the mechanism room 2 is divided into a circuit breaker room 21 and a disconnecting switch room 22, thereby facilitating the installation of the three-position switch mechanism and the vacuum circuit breaker mechanism, the space layout is reasonable, the safety factor is high, and the maintenance is facilitated, the pneumatic terminals 6 are arranged to realize the control of the gas in the inflation cabinet, such as pressure regulation, gas monitoring and leakage detection, which can effectively reduce the human operation errors and improve the automation and safety of the inflation cabinet, the three-position switch device mounting 9 and the vacuum circuit breaker device mounting 10 are arranged in the inflation room 4, thereby facilitating the installation of the three-position switch device and the vacuum circuit breaker device, the cable room 3 is arranged to facilitate the installation of the cable, and the reinforcing rib (11) is arranged to facilitate the improvement of the strength of the whole inflation cabinet, the inflation cabinet has a simple and reasonable structure, has few parts, is integrally laser welded after being punched and bent by a stainless steel plate, has high precision, has little deformation, has good corrosion resistance, has high isolation degree from the outside world, can adapt to harsh operating environments, has low maintenance rate and long service life.

[0021] Further, the instrument chamber 1 and the mechanism chamber 2 are provided with a connecting opening, the mechanism chamber 2 comprises a circuit breaker chamber 21 and a disconnecting chamber 22, the circuit breaker chamber 21 is internally provided with a three-position switch mechanism mounting piece 12, and the disconnecting chamber 22 is internally provided with a vacuum circuit breaker mechanism mounting piece 13; in use, the mechanism chamber 2 is divided into the circuit breaker chamber 21 and the disconnecting chamber 22, so that the three-position switch mechanism and the vacuum circuit breaker mechanism can be installed separately, the space layout is reasonable, the safety factor is high, and maintenance is facilitated.

[0022] Further, the cable chamber 3 comprises an outgoing line chamber 31 and a pressure relief chamber 32, the outgoing line chamber 31 is internally provided with an outgoing line port 16, the pressure relief chamber 32 is internally provided with a pressure relief opening 15, and the pressure relief chamber 32 is communicated with the inflation chamber 4 through the pressure relief opening 15; in use, the outgoing line chamber 31 is arranged, so that the cable can be installed; and the pressure relief chamber 32 is arranged, so that the inflation chamber 4 can be pressure relieved, and the safety factor is high.

[0023] Further, the inflation chamber 4 is internally provided with an insulator base 5, one end of the insulator base 5 is fixedly connected with an outgoing line cone tube 14, the outgoing line cone tube 14 extends into the outgoing line chamber 31, and the inflation chamber 4 is internally provided with a three-position switch device mounting piece 9 and a vacuum circuit breaker device mounting piece 10; in use, the outgoing line cone tube 14 is arranged, so that the cable threading operation can be facilitated.

[0024] Further, the cabinet top is symmetrically fixedly connected with two lifting ring ribs 7, and the two lifting ring ribs 7 are symmetrically fixedly connected with lifting ring reinforcing ribs 8 on the side close to each other, and the lifting ring reinforcing ribs 8 are fixedly arranged at the cabinet top; in use, the lifting ring ribs 7 are arranged, so that the inflation cabinet can be conveniently transported.

[0025] The working principle of the utility model is as follows: in use, the instrument chamber 1 is arranged, so that various instruments can be independently installed and viewed; the mechanism chamber 2 is divided into the circuit breaker chamber 21 and the disconnecting chamber 22, so that the three-position switch mechanism and the vacuum circuit breaker mechanism can be installed separately, the space layout is reasonable, the safety factor is high, and maintenance is facilitated; the pneumatic terminal 6 is arranged, so that the inflation cabinet gas can be controlled, such as pressure regulation, gas monitoring and leakage detection, human operation errors can be effectively reduced, the automation and safety of the inflation cabinet are improved, the three-position switch device mounting piece 9 and the vacuum circuit breaker device mounting piece 10 are arranged in the inflation chamber 4, so that the three-position switch device and the vacuum circuit breaker device can be installed, the cable chamber 3 is arranged, so that the cable can be installed, the inflation cabinet is simple and reasonable in structure, has few parts, is integrally formed by laser welding after stamping and bending of a stainless steel plate, has high precision, little deformation, good corrosion resistance, high isolation degree from the outside world, can adapt to a harsh operating environment, has low maintenance rate and long service life.

[0026] The utility model has carried out the exemplary description to the utility model in the above-mentioned combination drawing, obviously the utility model concrete realization is not limited by above-mentioned mode, only if the method conception and technical scheme of the utility model have been used to carry out this kind of non-essential improvement, or the conception and technical scheme of the utility model are directly applied to other occasions without improvement, all are within the protection scope of the utility model.

Claims

1. A sheet metal-type environmentally friendly inflatable cabinet with pneumatic terminals, comprising a cabinet body, characterized in that: The cabinet includes an instrument room (1), a mechanism room (2), a cable room (3) and an air chamber (4). The instrument room (1) is provided with pneumatic terminals (6) on the front and back top. The pneumatic terminals (6) are composed of a main female connecting copper part and a cone insulator. The instrument room (1) is located on one side of the top of the cabinet.

2. The sheet metal-type environmentally friendly gas-filled cabinet with pneumatic terminals according to claim 1, characterized in that: A connection port is provided between the instrument room (1) and the mechanism room (2). The mechanism room (2) includes a circuit breaker room (21) and a disconnector room (22). A three-position switch mechanism mounting component (12) is provided on one side inside the circuit breaker room (21), and a vacuum circuit breaker mechanism mounting component (13) is provided on one side inside the disconnector room (22).

3. The sheet metal-type environmentally friendly gas-filled cabinet with pneumatic terminals according to claim 1, characterized in that: The cable chamber (3) includes a cable outlet chamber (31) and a pressure relief chamber (32). The cable outlet chamber (31) has a cable outlet port (16) at the bottom of its inner cavity, and the pressure relief chamber (32) has a pressure relief port (15) at the top of its inner cavity. The pressure relief chamber (32) is connected to the air filling chamber (4) through the pressure relief port (15).

4. The sheet metal-type environmentally friendly gas-filled cabinet with pneumatic terminals according to claim 3, characterized in that: An insulator base (5) is fixedly installed on the bottom of one side of the air chamber (4). One end of the insulator base (5) is fixedly connected to a lead-out cone tube (14). The lead-out cone tube (14) extends into the interior of the lead-out chamber (31). A three-position switch device mounting component (9) and a vacuum circuit breaker device mounting component (10) are provided on one side of the air chamber (4).

5. The sheet metal-type environmentally friendly gas-filled cabinet with pneumatic terminals according to claim 1, characterized in that: The top of the cabinet is symmetrically fixed with lifting rings (7) on both sides, and the two lifting rings (7) are symmetrically fixed with lifting ring reinforcing ribs (8) on the side that is close to each other. The bottom of the lifting ring reinforcing ribs (8) is fixed to the top of the cabinet.

6. The sheet metal-type environmentally friendly gas-filled cabinet with pneumatic terminals according to claim 1, characterized in that: The instrument room (1), mechanism room (2), cable room (3) and air filling room (4) are all made of stainless steel plates that are stamped, bent and then laser welded together.

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