Abstract: A heat exchanger has an outer pressure jacket, which is provided with an entry connection for the supply of and an exit connection for the removal of a first heat exchange medium, the jacket surrounding U-shaped, bent pipes through which a second heat exchange medium flows. The pipes are mounted in a pipe supporting floor that is connected with the pressure jacket. The U-shaped pipes are surrounded by a guide jacket which is inwardly radially spaced from the inside wall of the pressure jacket and defines an intermediate annular space therewith. Inner and outer legs of the U-shaped pipes are respectively positioned on one of two concentrical partial circles. The inner pipe legs surround a central pipe which is oriented along the longitudinal axis of the heat exchanger, is connected with the entry connection, is open towards the interior of the heat exchanger, and extends from one end of the heat exchanger to the vicinity of the pipe supporting floor which is located at the other end of the heat exchanger.

Abstract: A heat exchanger for cooling synthesis gas generated in a coal-gasification plant has heat-transfer pipes (1) that the gas flows through, that are secured in two slabs (2 & 3) of piping, and that are enclosed in a jacket (4). The gas intake-end piping slab (2) is protected by a layer of ceramic flooring. The flooring consists of adjacent block-shaped sockets (12), each of which has an opening (15) that tapers together conically into a pipe section (14) that extends into one of the pipes (1).

Abstract: A heat exchanger for cooling superheated steam with water, yielding saturated steam. The heat exchanger consists of U-shaped pipes (4) that the superheated steam flows through. The pipes are accommodated in a jacket (1) provided with intakes (10 & 11) and outlets (12 & 13) for the evaporating water. The pipes have their ends secured in a slab of tubes. The slab demarcates a chamber that is separated by a partition into an intake compartment (17) with an intake (14) and an outlet compartment (18) with an outlet (15).

Abstract: Device for cooling gases deriving from ammonia synthesis. The device consists of pipes accommodated in an interior space. The space is subjected to a heat-absorption medium and surrounded by a cylindrical mantle. The pipes are secured in a pipe floor and communicate with a gas-intake chamber and a gas-outlet chamber. When an ammonia-production plant has several reactors, a single gas-cooling device has up to now been associated with each. The new device is intended to decrease the engineering expenses involved in cooling the gases in such plants. A gas-intake chamber and a gas-outlet chamber is positioned at each of the two opposite ends of the jacket. Straight pipes are associated with each chamber. The pipes are adjacent and the gas flows through them in opposite directions.

Abstract: A heat exchanger with two bundles of tubes is employed to cool the hot gases deriving from the synthesis of ammonia. The two bundles communicate directly at the incoming-gas end and through a reversing chamber positioned between them at the outgoing-gas end. The first bundle is surrounded by several chambers with separate media flowing through them. The second bundle is provided with still another separate medium flowthrough.

Abstract: A thermally loaded container is supported by way of support brackets on two bearings arranged at a spacing from each other. In order to permit a length change caused by temperature in horizontal direction and a raising in vertical direction, the brackets in one bearing are guided to be displaceable vertically and horizontally. The other bearing consists of hinged supports which are inclined relative to the longitudinal axis of the container and pivotable in direction of the longitudinal axis of the container.