| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a connection pipe for supplying gas having a structure easy in the attachment/detachment and capable of being exactly reused even under high heat atmosphere. SOLUTION: In this connection pipe for supplying the gas freely attachable/ detachable to/from a partially notch-shaped flange at the side where gas is supplied, a connection pipe main body is formed into a double pipe structure in which an inner pipe 5 and an outer pipe 6 are connected to each other with screws. A disk-like inner pipe flange 8 in surface-contact with the flange at the side where gas is supplied is provided in one end of the inner pipe 5 and a cross sectional U-shape type outer pipe flange 7 is provided in one side of the outer pipe 6 at the inner pipe flange 8 side. The flange at the side where gas is supplied is connected so as to be held with these inner pipe flange 8 and outer pipe flange 7 between.</p> |
