Abstract:
The invention relates to a segment designed to be fitted by screw-fastening for implementing a fluid transport pipe for transporting a fluid, which pipe comprises an inner wall and an outer wall, the segment comprising an inner tube and an outer tube that define an annular space between them, the segment comprising in particular one heating duct placed in its annular space and opening out at either end of its annular space, said annular space being designed to be closed hermetically in order to enable it to be brought to a reduced pressure. The invention relates further to a method of manufacturing said segment and a method of implementing said fluid transport pipe.
Abstract:
The invention relates to a heated pipe for the transportation of a fluid comprising: a fluid transportation casing, one or several electric heating cables each arranged along the transportation casing, each cable comprising an electrically conductive core arranged in an electrically insulating and thermally conductive sheath, a thermally insulating material applied onto said heating cable or cables and onto the transportation casing, an external casing arranged around the thermally insulating material and made integral with the transportation casing in a sealed manner so as to define at least one annular space enabling its pressure to be reduced, the pipe additionally comprises means to reduce partial electrical discharges between said heating cable or cables and the transportation casing.