An open-type mother-tube incoming line cabinet capable of relieving pressure from adjacent cabinets

Abstract

The invention relates to an open-type mother-tube incoming line cabinet capable of relieving pressure from an adjacent cabinet, and is characterized in that it comprises a mother-tube incoming line cabinet, an adjacent pressure relief cabinet and a current transformer installation module; when an arcing fault occurs in the mother-tube incoming line cabinet, the arc burns and releases huge energy in a short time, and the pressure suddenly increases, so that a one-way pressure relief plate can be opened, and the mother-tube incoming line cabinet releases toxic gas into an adjacent pressure relief cabinet through a pressure relief outlet, and the pressure relief cover at the top of the adjacent pressure relief cabinet is opened, so that the high-pressure gas can be quickly released outside the cabinet; when an internal arcing fault occurs in the adjacent pressure relief cabinet, since a one-way pressure relief plate is arranged in a side plate of the adjacent pressure relief cabinet, it can be ensured that the mother-tube incoming line cabinet is not affected, thereby maintaining the safety and stability of the entire system.

Description

Technical Field

[0001] The invention relates to the technical field of electric power equipment, and in particular to an open-type mother tube incoming line cabinet capable of relieving pressure from adjacent cabinets. Background Art

[0002] The connection between the insulating tube mother and the high-voltage tube mother cabinet generally uses a current transformer, and the transformer is generally installed externally. When connecting the insulating tube mother and the high-voltage tube mother cabinet, it is necessary to first remove the transformer on the high-voltage tube mother cabinet and connect it to the insulating tube mother, and then reconnect the transformer connected to the insulating tube mother to the high-voltage tube mother cabinet through the mounting flange.

[0003] However, to remove the transformer from the high-voltage mother cabinet, it is necessary to remove the pressure relief top plate on the high-voltage mother cabinet first; and the connection between the mother adapter and the cabinet, and the installation of the transformer and the cabinet are limited by the operating space of the pressure relief room of the high-voltage mother cabinet; this space limitation makes disassembly and assembly operations inconvenient, and wastes a lot of time and manpower. Especially in the more compact prefabricated cabin, this shortcoming is more prominent, affecting work efficiency and construction progress. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an open-type mother tube incoming line cabinet with pressure relief in adjacent cabinets, so as to realize the quick and convenient installation and disassembly of the transformer of the mother tube incoming line cabinet in a limited space, and through the pressure relief structure of the adjacent cabinet, ensure that the pressure relief function can be realized quickly and effectively in the event of arcing, thereby ensuring the safe and stable operation of the power system and the maintainability of the equipment.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: an open-type mother pipe incoming line cabinet capable of pressure relief in adjacent cabinets, the innovation of which is that: it comprises a mother pipe incoming line cabinet body, an adjacent pressure relief cabinet body and a current transformer installation module; The tube mother incoming line cabinet comprises a front cabinet, an air box, a cable chamber and a rear cabinet; the air box is L-shaped and arranged above the cable chamber; the front cabinet and the rear cabinet are respectively arranged on the front and rear sides of the structure formed by the air box and the cable chamber; a pressure relief outlet is arranged on the side of the rear cabinet; The adjacent pressure relief cabinet is closely attached to the side of the pipe mother incoming line cabinet, and a pressure relief inlet is provided at the position corresponding to the pressure relief outlet on the side of the adjacent pressure relief cabinet, and a one-way pressure relief plate is provided at the pressure relief inlet; a pressure relief cover is provided at the top of the adjacent pressure relief cabinet, so that the gas in the pipe mother incoming line cabinet is discharged from the pressure relief outlet of the rear cabinet into the adjacent pressure relief cabinet, and then discharged from the pressure relief cover at the top of the adjacent pressure relief cabinet; The current transformer installation module includes a left support angle steel, a right support angle steel, a reinforcement plate, a CT bottom fixing plate and a CT top fixing plate; the side of the gas box is provided with welding studs and reinforcement rib welding nuts; the top edge of the gas box is provided with a gas box welding nut; the left support angle steel and the right support angle steel are respectively fixed with welding studs provided on the side of the gas box to achieve connection on the side of the gas box; the reinforcement plate is horizontally connected between the left support angle steel and the right support angle steel; the CT bottom fixing plate is installed on the upper surface of the integral structure formed by the left support angle steel, the right support angle steel and the reinforcement plate; the side of the CT bottom fixing plate is fixed with the reinforcement rib welding nut on the side of the gas box; the CT top fixing plate is fixed with the gas box welding nut; the CT bottom fixing plate and the CT top fixing plate are respectively provided with upper mounting holes and lower mounting holes, and a current transformer is provided between the CT bottom fixing plate and the CT top fixing plate, and the current transformer is installed on the side of the gas box by bolts matching the upper mounting holes and the lower mounting holes.

[0006] Furthermore, the one-way pressure relief plate is hinged at the pressure relief inlet, so that when an arc fault occurs in the mother pipe incoming line cabinet, the arc burning releases huge energy in a short time, the pressure suddenly increases, and the one-way pressure relief plate can be flushed open. The mother pipe incoming line cabinet releases toxic gas into the adjacent pressure relief cabinet through the pressure relief outlet. The pressure relief cover on the top of the adjacent pressure relief cabinet is opened to quickly release the high-pressure gas to the outside of the cabinet; when an internal arc fault occurs in the adjacent pressure relief cabinet, since the one-way pressure relief plate is provided in the side panel of the adjacent pressure relief cabinet, it can ensure that the mother pipe incoming line cabinet is not affected, thereby maintaining the safety and stability of the entire system.

[0007] The advantages of the present invention are: 1) When the insulating tube mother in the present invention is connected to the tube mother incoming line cabinet, the CT top fixing plate and the current transformer are first disassembled, and after the current transformer and the insulating tube mother are connected together, the current transformer connected with the insulating tube mother is placed on the CT top fixing plate; after the tube mother adapter is connected to the cabinet, the current transformer is re-fixed with the CT bottom fixing plate and the CT top fixing plate; the operating space is large, the installation process is more convenient and efficient, and time and labor are greatly saved.

[0008] 2) In the present invention, by setting the pressure relief of the adjacent cabinet, the upper pressure relief chamber structure of the mother pipe incoming cabinet is eliminated, the use of cabinet panels is reduced, and the production cost is reduced; space resources are used more effectively and the utilization rate of space is improved; the contact area between the gas box and the environment is increased, and the heat dissipation performance is improved; it is easy to transport and install, and the logistics cost and installation difficulty are reduced; in addition, when an arc fault occurs in the mother pipe incoming cabinet, the arc combustion releases huge energy in a short time, and the pressure increases suddenly, which can open the one-way pressure relief plate, and the mother pipe incoming cabinet releases toxic gas into the adjacent pressure relief cabinet through the pressure relief outlet. The pressure relief cover on the top of the adjacent pressure relief cabinet is opened, and the high-pressure gas can be quickly released to the outside of the cabinet; when an internal arc fault occurs in the adjacent pressure relief cabinet, since a one-way pressure relief plate is provided in the side panel of the adjacent pressure relief cabinet, it can ensure that the mother pipe incoming cabinet is not affected, thereby maintaining the safety and stability of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0010] Figure 1 This is a structural diagram of an open-type mother pipe incoming line cabinet capable of relieving pressure from adjacent cabinets according to the present invention.

[0011] Figure 2 This is a diagram of a tube mother incoming line cabinet body of an open tube mother incoming line cabinet capable of relieving pressure from adjacent cabinets according to the present invention.

[0012] Figure 3 This is a structural diagram of the air box of the tube mother incoming line cabinet of an open tube mother incoming line cabinet capable of relieving pressure from adjacent cabinets according to the present invention.

[0013] Figure 4 The exploded structural diagram of the tube mother incoming line cabinet body of an open tube mother incoming line cabinet capable of relieving pressure from adjacent cabinets according to the present invention.

[0014] Figure 5 This is a structural diagram of a one-way pressure relief plate of a tube mother incoming line cabinet body of an open tube mother incoming line cabinet capable of relieving pressure in adjacent cabinets according to the present invention.

[0015] Figure 6 The present invention is a schematic diagram of the pressure relief principle of a tube mother incoming line cabinet of an open tube mother incoming line cabinet capable of pressure relief in adjacent cabinets. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] like Figures 1 to 6 An open-type mother-tube incoming line cabinet capable of pressure relief in adjacent cabinets is shown, comprising a mother-tube incoming line cabinet body 1, an adjacent pressure relief cabinet body 2 and a current transformer installation module 3.

[0019] The mother tube incoming line cabinet 1 comprises a front cabinet 11, an air box 12, a cable chamber 13 and a rear cabinet 14; the air box 12 is L-shaped and is arranged above the cable chamber 13; the front cabinet 11 and the rear cabinet 14 are respectively arranged on the front and rear sides of the structure formed by the air box 12 and the cable chamber 13; a pressure relief outlet 15 is arranged on the side of the rear cabinet 14.

[0020] The adjacent pressure relief cabinet 2 is tightly attached to the side of the mother pipe incoming cabinet 1, and a pressure relief inlet 23 is provided at the position of the pressure relief outlet on the side of the adjacent pressure relief cabinet 2, and a one-way pressure relief plate 21 is provided at the pressure relief inlet 23; a pressure relief cover 22 is provided at the top of the adjacent pressure relief cabinet 21, so that the gas in the mother pipe incoming cabinet 1 is discharged from the pressure relief outlet of the rear cabinet 14 into the adjacent pressure relief cabinet 2, and then discharged from the pressure relief cover 22 at the top of the adjacent pressure relief cabinet 2.

[0021] The current transformer installation module 3 includes a left support angle steel 31, a right support angle steel 32, a reinforcement plate 33, a CT bottom fixing plate 34 and a CT top fixing plate 35; welding studs and reinforcement rib welding nuts are arranged on the side of the air box 12; an air box welding nut is arranged at the top edge of the air box 12; the left support angle steel 31 and the right support angle steel 32 are respectively fixed to the welding studs arranged on the side of the air box to realize connection on the side of the air box 12; the reinforcement plate 33 is horizontally connected between the left support angle steel 31 and the right support angle steel 32; the CT bottom fixing plate 34 is connected to the right support angle steel 32; the CT bottom fixing plate 35 is connected to the right support angle steel 31 and the left support angle steel 32; the CT bottom fixing plate 34 is connected to the right support angle steel 32; the CT bottom fixing plate 35 is connected to the right support angle steel 31 and the left support angle steel 32; the CT bottom fixing plate 34 is connected to the right support angle steel 32; the CT bottom fixing plate 35 is connected to the right support angle steel 31 and the right ...4 is connected to the right support angle steel 32; the CT bottom fixing plate 34 is connected to the right support angle steel 32; the CT bottom fixing plate 34 is connected to the right support angle steel 32 4 is installed on the upper surface of the integral structure formed by the left supporting angle steel 31, the right supporting angle steel 31 and the reinforcing plate 33; the side of the CT bottom fixing plate 34 is fixed to the reinforcing ribs on the side of the air box 12 by welding nuts; the CT top fixing plate 35 is fixed to the air box by welding nuts; the CT bottom fixing plate 34 and the CT top fixing plate 35 are respectively provided with upper mounting holes and lower mounting holes, and a current transformer is provided between the CT bottom fixing plate 34 and the CT top fixing plate 35, and the current transformer is installed on the side of the air box 12 by bolts matching the upper mounting holes and the lower mounting holes.

[0022] The one-way pressure relief plate 21 is hinged at the pressure relief inlet, so that when an arc fault occurs in the mother pipe incoming line cabinet 1, the arc combustion releases huge energy in a short time, and the pressure increases suddenly, which can open the one-way pressure relief plate 21, and the mother pipe incoming line cabinet 1 releases the toxic gas into the adjacent pressure relief cabinet 2 through the pressure relief outlet 15. The pressure relief cover 22 on the top of the adjacent pressure relief cabinet 2 is opened, and the high-pressure gas can be quickly released to the outside of the cabinet; when an internal arc fault occurs in the adjacent pressure relief cabinet 2, since the one-way pressure relief plate 21 is provided in the side panel of the adjacent pressure relief cabinet, it can ensure that the mother pipe incoming line cabinet 1 is not affected, thereby maintaining the safety and stability of the entire system.

[0023] The working principle of the present invention is that when the insulating tube mother is connected to the tube mother incoming line cabinet, the CT top fixing plate and the current transformer are first disassembled, and after the current transformer and the insulating tube mother are connected together, the current transformer connected with the insulating tube mother is placed on the CT top fixing plate; after the tube mother adapter is connected to the cabinet, the current transformer and the CT bottom fixing plate and the CT top fixing plate are re-fixed; the operating space is large, the installation process is more convenient and efficient, and time and labor are greatly saved.

[0024] By setting up the pressure relief method of the adjacent cabinet, the upper pressure relief chamber structure of the mother pipe incoming cabinet is eliminated, the use of cabinet panels is reduced, and the production cost is reduced; space resources are used more effectively and the utilization rate of space is improved; the contact area between the air box and the environment is increased, and the heat dissipation performance is improved; it is easy to transport and install, reducing the logistics cost and installation difficulty.

[0025] Those skilled in the art should understand that the present invention is not limited to the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and improvements, and these changes and improvements shall all fall within the scope of the present invention claimed for protection.

Claims

1. An open-type mother-tube incoming line cabinet capable of pressure relief in adjacent cabinets, characterized in that: It includes the tube mother incoming line cabinet, adjacent pressure relief cabinet and current transformer installation module; The tube mother incoming line cabinet comprises a front cabinet, an air box, a cable chamber and a rear cabinet; the air box is L-shaped and arranged above the cable chamber; the front cabinet and the rear cabinet are respectively arranged on the front and rear sides of the structure formed by the air box and the cable chamber; a pressure relief outlet is arranged on the side of the rear cabinet; The adjacent pressure relief cabinet is closely attached to the side of the pipe mother incoming line cabinet, and a pressure relief inlet is provided at the position corresponding to the pressure relief outlet on the side of the adjacent pressure relief cabinet, and a one-way pressure relief plate is provided at the pressure relief inlet; a pressure relief cover is provided at the top of the adjacent pressure relief cabinet, so that the gas in the pipe mother incoming line cabinet is discharged from the pressure relief outlet of the rear cabinet into the adjacent pressure relief cabinet, and then discharged from the pressure relief cover at the top of the adjacent pressure relief cabinet; The current transformer installation module includes a left support angle steel, a right support angle steel, a reinforcement plate, a CT bottom fixing plate and a CT top fixing plate; the side of the gas box is provided with welding studs and reinforcement rib welding nuts; the top edge of the gas box is provided with a gas box welding nut; the left support angle steel and the right support angle steel are respectively fixed with welding studs provided on the side of the gas box to achieve connection on the side of the gas box; the reinforcement plate is horizontally connected between the left support angle steel and the right support angle steel; the CT bottom fixing plate is installed on the upper surface of the integral structure formed by the left support angle steel, the right support angle steel and the reinforcement plate; the side of the CT bottom fixing plate is fixed with the reinforcement rib welding nut on the side of the gas box; the CT top fixing plate is fixed with the gas box welding nut; the CT bottom fixing plate and the CT top fixing plate are respectively provided with upper mounting holes and lower mounting holes, and a current transformer is provided between the CT bottom fixing plate and the CT top fixing plate, and the current transformer is installed on the side of the gas box by bolts matching the upper mounting holes and the lower mounting holes.

2. The open-type mother-tube incoming line cabinet capable of pressure relief in adjacent cabinets according to claim 1 is characterized in that: The one-way pressure relief plate is hinged at the pressure relief inlet, so that when an arc fault occurs in the mother pipe incoming line cabinet, the arc combustion releases huge energy in a short time, the pressure increases suddenly, and the one-way pressure relief plate can be flushed open, and the mother pipe incoming line cabinet releases toxic gas into the adjacent pressure relief cabinet through the pressure relief outlet. The pressure relief cover on the top of the adjacent pressure relief cabinet is opened, and the high-pressure gas can be quickly released to the outside of the cabinet; when an internal arc fault occurs in the adjacent pressure relief cabinet, since the one-way pressure relief plate is arranged in the side panel of the adjacent pressure relief cabinet, it can ensure that the mother pipe incoming line cabinet is not affected, thereby maintaining the safety and stability of the entire system.

Images