| 摘要 |
<p>PURPOSE:To provide an intermediate fixing structure which has a simple structure and a small number of field joints. CONSTITUTION:An intermediate fixing structure for buried heat supply double pipes comprises discs 2a, 2b which are welded to the outer circumference of a main pipe 1 at a certain interval, a compression resistant heat insulating member 9 which is installed between the discs 2a and 2b and has a groove 9a on the outer circumference of the central part, a casing pipe joint collar 4 which is inserted into the groove 9a of the heat insulating member and has a lug piece 5 covered with an insulation coat 6 protruding from the central part.</p> |
