| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a vacuum insulation tube that makes it easy to connect and separate vacuum insulation tubes for piping to and from each other, that does not cause the increase of the outside diameter of tube-coupled portions, and that reduces heat radiation from a transported fluid and heat ingress into the transported fluid at a joint coupled portion. <P>SOLUTION: This vacuum insulation tube includes a joint nut or joint male nut that is fitted to the end of an outer tube. A vacuum layer is formed between the outer tube and an inner tube at one end with its hole inserted into a porous disk that is fitted to the inner tube and a portion between the border of the porous disk and the outer and inner tubes sealed. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
