High-sealing-performance SF6 ring main unit based on intelligent management

Abstract

The invention discloses a high-sealing-performance SF6 ring main unit based on intelligent management. The ring main unit comprises an outer cabinet body, a slope top plate is mounted at the top of the outer cabinet body, a bottom pipe is mounted at the top of the slope top plate, a gas storage box is mounted on the inner wall of one side of the outer cabinet body, and light energy boxes are mounted on the outer walls of the two sides of the outer cabinet body. Air outlet pipes are installed on the inner walls of the two sides of the outer cabinet body in a penetrating mode, connecting pieces are welded to the outer walls of the two sides of the outer cabinet body, a cabinet door is connected with the front face of the outer cabinet body through a rotating shaft, a sleeve frame is installed on the surface of the side, close to the SF6 inner cabinet, of the cabinet door, the sleeve frame is located above a temperature and humidity sensor, and a porous silica gel plate is connected into the sleeve frame in a sliding mode. By arranging a gas outlet pipe and a second connecting gas pipe, gas in the SF6 inner cabinet can be guided in time when thermal expansion happens to the gas in the SF6 inner cabinet, damage caused by expansion stress is reduced, and in addition, interference of an external heat source of the device can be reduced from the source due to the arrangement of the light energy boxes.

Description

technical field [0001] The invention relates to the technical field of SF6 ring network cabinets, in particular to a highly airtight SF6 ring network cabinet based on intelligent management. Background technique [0002] SF6 ring network cabinet is a kind of SF6 switch as the main switch and borrows the electrical insulation performance and excellent arc extinguishing performance of SF6, and the gas monitoring equipment can be installed inside the SF6 ring network cabinet to realize the SF6 ring network cabinet The purpose of gas monitoring inside the body has become the widely used electronic and electrical equipment piezoelectric combination equipment. With the sharp increase in the number of SF6 ring network cabinets installed, integrated intelligent management is required to achieve the minimum labor cost for maintenance. The normal operation of the SF6 ring network cabinet, so the SF6 ring network cabinet cluster usually has the same management terminal to assist it in ...

AI Technical Summary

Problems solved by technology

[0007] 4. The comparative document CN212323563U discloses a fast-inflating SF6 cabinet, "involving an inflatable cabinet, a protective electrical group is installed on the cabinet mechanism, a vacuum mechanism is installed on the outside of the cabinet mechanism, and the vacuum mechanism The upper part is connected with a fast inflation mechanism; a kind of fast inflation SF6 cabinet described in the utility model installs and fixes the protective electrical unit through the cabinet body mechanism, has high structural strength and long life, and reduces the vacuuming time of the vacuum pumping mechanism through the air bag , reduce energy consumption, control the refilling after vacuuming through the second control valve and the third control valve, save sulfur hexafluoride gas, reduce costs, accurately control the concentration of sulfur hexafluoride gas, simple structure and easy maintenance, the device When working, the airbag expansion is used to reduce the vacuuming time of the vacuum mechanism, but the gas inside the airbag is prone to suffocation due to the influence of temperature, which reduces the vacuum degree inside the device and is difficult to control. The concentration accuracy of sulfur hexafluoride gas , it is impossible to ensure a stable vacuum state inside the device through continuous vacuum exhaust measures

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