Method for rapid quenching judging by liquefying gas judging device, liquefied gas storage tank, liquefied gas carrier and liquefied gas by liquefied gas

摘要

The controller 30 includes a first temperature detector 31 for detecting the temperature T1 of the tank body in which the liquefied gas is stored and a second temperature detector 32 for detecting the temperature T2 of the skirt supporting the tank body. (32). The control device 30 has a temperature difference acquiring section 32 for acquiring a temperature difference? T between the partition wall temperature T1 detected by the first temperature detecting section 31 and the temperature T2 of the skirt detected by the second temperature detecting section 32, (34) for judging whether or not the joining portion of the tank body and the skirt is liquefied by the liquefied gas based on the partition wall temperature (T1) and the temperature difference (? T).