Multifunctional full-automatic gas charging device of SF6 equipment

Abstract

The invention discloses a multifunctional full-automatic gas charging device of SF6 equipment and relates to the technical field of devices for charging compressed gas. The device comprises an SF6 gas cylinder and an electric control cabinet. The electric control cabinet comprises a cabinet body. The cabinet body is provided with a gas inlet and a gas outlet. A gas outlet of the SF6 gas cylinder is connected with the gas inlet of the cabinet body. The gas inlet of the cabinet body is connected with the gas outlet of the cabinet body through a pipe. An electric control panel is further arranged in the cabinet body. The electric control panel comprises a microprocessor, a gas cylinder side temperature and pressure intensity sending module, an equipment side temperature and pressure intensity sensing module, a proportional solenoid valve, an environmental information sensing module, a man-computer interaction module, a prompt module and a power module. The device can automatically complete gas charging of the SF6 equipment, the working efficiency is improved, gas charging is controllable, and precision is high.

Description

technical field [0001] The invention relates to the technical field of devices for filling compressed gas, in particular to a multifunctional fully automatic gas filling device for SF6 equipment. Background technique [0002] SF running in power system 6 More and more equipment, to SF 6 Equipment gas replenishment is one of the common tasks in substation maintenance work. According to the statistics of the State Grid Hebei Electric Power Company, from 2009 to 2012, the average number of gas supplements per year was more than 300, and it showed an increasing trend year by year, as shown in Table 1. [0003] Table 1 Statistical table of the number of gas supplements from 2009 to 2012 [0004] years 2009 2010 2011 2012 Average number of breaths 278 293 322 353 [0005] At present, the operation requires three people, one to operate the SF6 gas cylinder, one to observe the gas pressure, and one to monitor. [0006] Using manual...

AI Technical Summary

Problems solved by technology

In these links, due to human and environmental reasons, the pipeline seal is not tight, the hose flushing time is not sufficient, and the ambient humidity is high, which will cause moisture to enter and pose a potential hazard to the safe operation of the equipment.

[0009] 2. Pipeline freezing

[0012] Because observing the gas pressure and operating the gas cylinder are two people, there is a certain delay in the process of cooperation between the two people, and this delay will make it difficult to control the inflation accuracy

When the first inflation is lower than the predetermined value, personnel are required to cooperate with refilling the gas; if it exceeds the predetermined value, it will be released, causing environmental pollution, and if it is too much, it will continue to replenish

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