System und Verfahren zum Sammeln und Reinigen von SF6 Gas

摘要

SF6 gas collected from the inside of a gas insulated machine (1) during maintenance and inspection is refined, and compositions of the refined SF6 gas are analysed and confirmed to be reused at the site. Acidic gases are neutralised and removed by a dry method using filters (4, 8, 9) and the refined SF6 gas is collected in a collecting tank (10). The composition of the collected SF6 gas after being refined is measured and confirmed by an analysis equipment (14) to quantitatively confirm whether or not the refined SF6 gas is reusable.