VAPORIZING-BOOST SUPPLY METHOD AND ITS DEVICE OF LIQUEFIED GAS BY AIR TEMPERATURE-TYPE EVAPORATOR

摘要

PURPOSE:To enable a device to perform stable supply of gas, by forcing the vaporizing gas in the device to be attracted so as to decrease a boiling point temperature of th liquefied gas to the predetermined value when a temperature difference between the evaporating temperature of the liquefied gas and the atmospheric temperature is reduced. CONSTITUTION:A device connects a pressure detector 12 to a pipe line 2, connecting a storage tank 1 to an air temperature-type evaporator 5, while a liquid level detector 9 to a pipe line in an outlet side of the air temperature-type evaporator 5. Then the device, when a temperature difference between the evaporating temperature of liquefied gas and the atmospheric temperature decreases, forces vaporizing gas in the air temperature-type evaporator 5 to be attracted and decreases a boiling point of the liquefied gas to the predetermined value so as to increase the temperature difference by closing a bypass valve 8 simultaneously actuating a blower 7 by a signal from the detectors 12, 9. In this way, stable supply of the gas can be performed by enabling the temperature difference to be forcibly held.