SUPPORTING STRUCTURE OF CRYOGENIC PIPING

PROBLEM TO BE SOLVED: To reduce production cost by reducing the size of a supporting structure arresting and supporting a cryogenic piping for transporting cold fluid such as LNG and to secure heat insulating performance. SOLUTION: In this frame 2 of the supporting structure supporting the invar cryogenic piping 3, first heat insulating materials 21a, 21b, 22a, and 22b having a lower outer shell 4 and an upper outer shell 13 of semi-circular shape in cross section and installed in a first arresting mechanism 20 for arresting an axial force generated in the piping 3 and a force in a direction orthogonal to that of the axial force by the frame, and second heat insulating materials 34a, 34b, 35a, and 35b installed in a second arresting mechanism 30 for arresting an axial rotating force generated in the piping 3 by the frame are formed of a high strength laminated heat insulating material having a compressive strength of approx. 100 MPa or higher in both a laminated direction and a direction orthogonal to the laminated direction. The supporting structure comprises a first foam heat insulating material 41 for cold insulation filled in a plurality of space parts between the piping 3 and the upper and lower outer shells 13 and 14 and a second foam heat insulating material 42 for cold insulation covering the outer peripheral surfaces of the upper and lower outer shells 13 and 14. COPYRIGHT: (C)2004,JPO&NCIPI