| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide the easily treatable subject apparatus capable of reducing the decrease of the purity of collected SF6 gas, and further capable of reducing the amount of generated used adsorbent by mounting plural adsorption units capable of being used independently or by connecting to each other according to the impurity intermixed in the SF6, and regenerating the adsorption units by heating the adsorbent packed in the adsorption units to eliminate the adsorbed impurity. SOLUTION: SF6 gas is collected by operating a collecting unit 2 in a passage of electrical equipment 1→a degradation gas and reaction product-adsorbing unit 3→a carbon compound-adsorbing unit 4→a compressor block 2a→a bomb 2b to the extent of the gas pressure in the interior of the electric equipment 1 becoming about atmospheric pressure. The collecting unit 2 is stopped, and a compressor 4d is operated to recycle a remaining gas in a recycling passage of the electric equipment 1→the compressor 4d→the electric equipment 1 to allow the impurity in the SF6 gas remaining in the electric equipment 1 to be absorbed to the extent of the prescribed purity. The compressor 4d is stopped and the SF6 gas remaining in the interior of the electric equipment 1 is further collected through a pipe line 10d.</p> |
