| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a piping freezing construction method capable of being inexpensively executed without selecting an executing place and without generating leakage of liquefied gas. <P>SOLUTION: In this piping freezing construction method, machining is performed for a heat insulating box 1 to form a pipe through part 2A according to the shape of a pipe 10, the heat insulating box 1 is made an upper part open type, the heat insulating box 1 is mounted in the pipe 10 so that the pipe 10 may pass through the pipe through part 2A, the portion 2 for which the machining is performed is sealed by a liquid packing 3, and subsequently the liquefied gas 4 is stored in the heat insulating box 1 to immerse the pipe 10 in the heat insulating box 1. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
