| 摘要 |
The present invention relates to a dual pipe including a deformation compensation device and, more specifically, a dual pipe including a deformation compensation device, capable of improving durability and stability of a pipe and stably supporting an inner pipe by compensating expansion and contraction of the inner pipe in both a circumferential direction and a longitudinal direction. The dual pipe including the deformation compensation device in accordance with the present invention includes the inner pipe arranged in the center; an outer pipe having a space unit at a gap with the inner pipe; and the deformation compensation device which is installed on the circumference of the inner pipe and compensates the expansion and the contraction of the inner pipe. The deformation compensation device includes a support member installed in the inner pipe; a rolling member which is rolled by being attached to the inner circumference of the outer pipe and is installed in the support member to be able to rotate; and a pressing elastic member elastically supporting the rolling member in order to vertically move the rolling member. |
