Plurality of insulating elements, and equipment elements isolated by this plurality

plurality of elements (1) Insulating thermally, each member being of rectangular section which are assembled to each other to form a single set of equipment around to isolate and contiguous with the wall of the equipment (17) the length and width of each element being less than the perimeter of the cylindrical equipment divided by 3 and to the longest dimension of the cuboidal equipment divided by three.