Extra-high pressure converter station SF6 continuous charging device in high and cold region and heating control method

Abstract

The invention provides an extra-high pressure converter station SF6 continuous charging device in a high and cold region and a heating control method for the extra-high pressure converter station SF6 continuous charging device. The problem that in the prior technical scheme, the gas charging efficiency of a single SF6 gas cylinder is low is solved. The extra-high pressure converter station SF6 continuous charging device comprises a trolley body provided with a multi-pass block, a placing part and a plurality of SF6 gas cylinders. The SF6 gas cylinders are arranged on the placing part. A gas channel is formed in the multi-pass block and comprises a gas outlet and a plurality of gas inlets connected with SF6 gas cylinder gas outlets through gas pipelines. The gas outlet is connected with a pressure reducing valve. The extra-high pressure converter station SF6 continuous charging device in the high and cold region and the heating control method has the beneficial technical effects that gas in the multiple SF6 gas cylinders can be gathered through the gas inlets of the multi-pass block, the gathered gas goes out through the gas outlet, the pressure of the gas at the gas outlet is reduced to the needed pressure through the pressure reducing valve, due to the fact that the extra-high pressure converter station SF6 continuous charging device uses the multiple SF6 gas cylinders, the total amount of SF6 gas is increased relative to that of a single SF6 gas cylinder, and then continuous charging is achieved. Similarly, after the total amount of the SF6 gas is increased, the pressure loss speed is lower than that of the single SF6 gas cylinder, and the gas charging efficiency is improved.

Description

technical field [0001] The invention relates to the field of electric power engineering construction, in particular to an SF6 continuous charging device for an ultra-high voltage converter station in an alpine region and a heating control method thereof. Background technique [0002] With the continuous advancement of my country's "West-to-East Power Transmission" and "North-to-South Power Transmission" power energy transmission and distribution strategies, the number of UHV converter stations installed in remote areas or even plateaus and alpine regions has increased year by year. The area where these UHV converter station projects are located has a 10-month heating period all year round. The winter is long, with an average temperature of more than 20 degrees Celsius below zero, and the extreme low temperature can reach minus 40 degrees Celsius. Moreover, the GIS inflation construction time itself is sensitive to temperature performance, and the high cold environmental fact...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to provide a SF6 heating trolley device connected to a water bath in an ultra-high voltage converter station in an alpine region to solve the problem of low inflation efficiency of a single SF6 cylinder in the prior art solution

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