REPLACEMENT APPARATUS OF A LIQUEFIED GAS STORAGE TANK USING NITROGEN

摘要

PURPOSE: A substitution device for a liquefied gas storage tank is provided to substitute for gas in a liquefied gas storage tank using nitrogen at the time of maintenance and repair of the liquefied gas storage tank installed inside a floating marine structure. CONSTITUTION: A substitution device for a liquefied gas storage tank comprises a nitrogen gas generator(20) and a nitrogen gas supply line(13). The nitrogen gas supply line connects the nitrogen gas generator to a liquefied gas storage tank(11) so that the nitrogen gas created in the nitrogen gas generator is supplied to the inside of the liquefied gas storage tank and removes the gas existing inside the liquefied gas storage tank.