| 摘要 |
<p>PURPOSE:To get a gas insulating electric equipment which can evaporate liquefied gas with terrestrial heat without providing a heater requiring heating control, its operation, and maintenance and management. CONSTITUTION:A connection pipe 16, which communicates with the opening 15 provided at the bottom of a tank 2 charged with insulating gas 3, is extended and buried in the ground, and one end of this buried connection pipe 16 is shut to form a reservoir 17, and also in the reservoir 17, the tubular wall of the connection pipe 16 is constituted of a member favorable in heat conductivity, and liquefied gas 4, which is generated, being dewed by the inwall of the tank 2, and is standing in the reservoir 17, is evaporated being heated with terrestrial heat, and is returned into the tank 2 again as insulating gas 3. Thereby, even if the tank 2 dews in the rigoroud winter of a cold district, the liquefied gas 4 is evaporated effectively by terrestrial; heat, so the pressure drop of the insulating gas 3 inside the tank 2 can be improved.</p> |
