VAPORIZATION DEVICE OF LIQUEFIED NATURAL GAS

摘要

A vaporizing apparatus of liquefied natural gas is provided to preheat LNG of ultrahigh temperature two times through a preheater heat exchanger and an ORV, thereby improving the vaporizing performance and durability of the ORV even in the winter time. A vaporizing apparatus of liquefied natural gas comprises a preheater heat exchanger(10) and an ORV(Open Rack Vaporizer,20). The preheater heat exchanger includes a preheating pipe(11). The ultrahigh temperature LNG(Liquefied Natural Gas) is heat-exchanged with seawater while passing through the preheating pipe and becomes low temperature LNG. The ORV is located above the preheater heat exchanger, including an inlet pipe(21) connected to the outlet of the preheating pipe, an outlet pipe(23), and connection pipes(25) connecting the inlet and outlet pipes. The low temperature LNG flowing in the inlet pipe is heat-exchanged with seawater and becomes NG(Natural Gas), and the NG is ejected through the outlet pipe.