Abstract:
An arrangement is provided for a helically corrugated pipe made of metal, which has an end face extending along a turn of the thread of its corrugation and a connecting element to be fastened to the pipe. The connecting element includes a pipe piece which has a helically extending inner surface corresponding to the turn of the thread of the corrugation of the pipe. The pipe piece is mounted on the pipe in the corrugation of the pipe. A metal ring is arranged on the pipe piece, where the pipe piece has sections with different inner diameters arranged one behind the other in the axial direction.
Abstract:
A line pipe for the transport of deep-frozen media, consisting of at least two corrugated metal pipes (2, 4) arranged concentrically and at a distance from one another, an insulation layer (3) being arranged in the annular gap between the two metal pipes (2, 4), the annular gap being evacuated, and a closing valve (10) provided in the outer metal pipe (4) being connectable to a vacuum pump, the closing valve being welded, vacuum-tight, into a smooth-walled metal pipe (9) welded, vacuum-tight, to the exterior of the metal pipes (4). The valve body (10) of the closing valve projects into the interior of the smooth-walled metal pipe (9) and is flush with the outer surface area of the smooth-walled metal pipe (9).
Abstract:
A termination for a superconductive cable (1) is provided, consisting of a pressure-tight metal inner container (2) in which there is a liquid refrigerant and into which the cable protrudes, and a metal outer container (3) which is separated from the inner container by an intermediate space (4) in which vacuum insulation is applied. A first rupture diaphragm (6) is applied in the wall of the inner container (2) and a second rupture diaphragm (7) is applied in the wall of the outer container (3) level with the first rupture diaphragm (6). An evacuated relief space (8), which contains superinsulation and is sealed from the intermediate space (4) with the vacuum insulation by a pressure-tight wall (9), is provided between the two rupture diaphragms (6, 7).
Abstract:
A double-wall tank for storing and shipping cryogenic media, which consists of an inner tank that contains the medium, an outer casing spaced some distance from the inner tank, and an evacuated space located between the inner tank and the outer casing, such that at least one permanent magnet is installed in the evacuated space and is arranged opposite a high-temperature superconductor, so that the inner tank is supported in the casing without contact, has the following features: the high-temperature superconductor (8) is located in the evacuated space (5), both the inner tank (1) and the casing (2) have a neck (3, 4), and the necks (3, 4) are arranged concentrically to each other, the neck (3) of the inner tank (1) is a spirally corrugated metal tube (3), whose outer end is attached to the neck (4) of the casing (2).
Abstract:
A magnetic bearing of a rotor shaft relative to a stator is described, which has the following features: (a) the rotor shaft (1) contains an arrangement of permanent-magnet elements (2) arranged side by side in the region of the stator (3); (b) the stator (3) has a structure (6a) with high-Tc superconductor material with grains; (c) the high-Tc superconductor material is located in/on the surface of a heat sink (6) that is arranged coaxially with the rotor shaft (1); (d) the heat sink (1) either has a cooling channel (8), which is also arranged coaxially with the rotor shaft (1), or is formed as a solid piece and is in contact with a cold head; and (e) the heat sink (6) is located inside an evacuated housing (5).
Abstract:
A conduit for the transport of cryogenic media, in particular a superconducting cable, includes at least two metal pipes arranged concentrically and spaced apart from one another, an insulation layer being situated in the annular gap between the metal pipes and the annular gap being evacuated. The exterior of the metal pipe (4) is separated at predetermined intervals and above each opening a pump connector (10) is welded vacuum-tight to the outer metal pipe (4).
Abstract:
Two concentric corrugated metal tubes have a space therebetween in which there is arranged a superinsulation layer. Between the inner tube and the superinsulation layer there is located a helical spacer to ensure an annular channel to facilitate the evacuation of the space between the corrugated tubes. The spacer is formed of interlaced strands to reduce heat conduction therethrough.