VAPOURIZATION OF LOW TEMPERATURE LIQUEFIED GAS AND ITS DEVICE

PURPOSE:To make a sea water drawing pump and its power needless and to reduce cost by introducing low temperature liquefied gas into a heat exchanger in a carburetor, decompressing the inside of the carburetor by way of condensing vaporized heat source steam with this cold and introducing heat source water into the carburetor by differential pressure with atmospheric pressure. CONSTITUTION:When LNG is let in a heat exchanger 13 from an LNG introduction pipe 14, sea water steam partly vaporized in a carburetor 10 is cooled down by this cold and condensed, the inside of the carburetor 10 is decompressed and sea water is introduced to the inside of the carburetor 10 due to differential pressure with the sea water 12 side. The sea water condensed in the carburetor 10 and the sea water not vaporized and remained enter an atmospheric air release bit 20 from a drain bit 18 and drained by a drain pump 22 to a drainage 23. Additionally, uncondensed gas in the sea water vaporized in the carburetor 10 is extracted from an air bleed line 16. Meanwhile, LNG introduced in the heat exchanger 13 in the carburetor 10 is vaporized by giving condensation latent heat to the sea water steam as mentioned above and sent out to the consumption side from an LNG introduction line 15.