Borsig Gmbh

Deutsche Babcock-borsig Aktiengesellschaft

Konrad Nassauer

Wolfgang Kehrer

Helmut Lachmann

Michael Fix

Rainer Gadow

Matthias Blach

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. A separator jacket is positioned between the inner and outer legs of the U-shaped pipes and is connected to the pipe supporting floor. The guide jacket is sealingly connected at one end with the central pipe and at its open end extends close to the pipe supporting floor. The exit connection which originates from the annular space between the guide jacket and the pressure jacket is positioned at the end of the heat exchanger which is remote from the open end of the guide jacket. The central pipe is provided at an inflow end with a valve chamber including a valve arrangement for controlling the flow of the heat exchange medium through the central pipe for adjustment of the temperature of the heat exchange medium flowing in the jacket.

Heat exchanger

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).

Heat exchanger for cooling synthesis gas generated in a

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). To improve the generic heat exchanger, part of the partition (16) has been removed and replaced with a rotating plate (19), the plate is attached to a rotating disk (21) that is perpendicular to the plate and has an opening (22) through it and a solid section on each side of the plate, the rotating disk faces a stationary disk (23) secured to the inner surface of the chamber (7) away from and parallel with the slab (5) and provided with openings (24) and solid sections that are similar to those in the rotating disk, and the side of the slab that faces away from the chamber rests on a thicker support (8).

Heat exchanger for cooling superheated steam

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.

Device for cooling gases deriving from ammonia synthesis

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.

Heat exchanger for cooling hot gases, especially those deriving from the

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.

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Berlin, Germany

Konrad Nassauer