Abstract: An apparatus for producing superheated steam with solar energy is provided. The apparatus has a heat-transfer medium circuit with a heat transfer medium for absorbing the solar energy in the form of heat and a water/stream circuit with water and/or steam for forming the superheated steam. The water and/or the steam may flow in one direction in the water/steam circuit. For producing the superheated steam, the heat-transfer medium circuit and the water-steam circuit are thermally coupled to each other by a heat exchanger of a reheater. In the water/steam circuit, a water separator is arranged upstream of the heat exchanger in direction of flow for separating water and steam from each other, so that substantially only steam enters the heat exchanger. The heat exchanger and the water separator are arranged in a common reheating pressure vessel.

Abstract: A device for mounting a conduit in an opening of a plate, especially for mounting a heat-exchanger tube in a support plate of a high-temperature heat exchanger. The tube is mounted in the opening of the support plate via the interposition of at least one sleeve-like wear-protection element, with the positioning of the tube being secured by welding. To guarantee a reliable connection between the plate and the tube that can be tested and can also be utilized at high temperatures, at least one build-up weld is provided on the tube. This build-up weld is in frictional and/or positive engagement with the inner surface of the at least two-part wear-protection element.