PIPE STRUCTURE AND LIQUEFIED NATURAL GAS STORAGE TANK HAVING THE SAME

摘要

PURPOSE: A pipe structure and a liquefied natural gas storage tank with the same are provided to minimize the overlap of spray ranges by arranging frame pipes having different diameters on a concentric axis. CONSTITUTION: A pipe structure(100) comprises feeding pipes(120), frame pipes(140), and multiple spray nozzles(160). The feeding pipes are installed in a gas passage to feed cooling fluid. The frame pipes are connected to the feeding pipes and are positioned in a ceiling part of a tank. The multiple spray nozzles are arranged in the frame pipes and spray the cooling fluid.