method for thermal insulation of coaxial tubes with a teilchenfu00f6rmigen insulating material, installation for the implementation of the procedure, element of coaxial pipes and pipe

摘要

The present invention relates to a process for thermal insulation of the annular space (4) of an element of an assembly (1) of two coaxial pipes (2, 3), with a thermal insulating material is porous (5), a process in which: a / is placed the pipes (1) is inclined, preferably by an angle α of 5 to 30°, the said annular space being closed at each end by a closing piece (13a, 13b), etb / are substantially fills all the annular space (4) of said insulating material (4) in the form of particles in bulk, etc. / preferably, the mixture is stirred at least intermittently said particles of insulating material as the filling of the annular space, in order to compact said insulating material.