Abstract: A regenerative heat exchanger for gas streams in heat exchange with one another, the heat exchange occurring via a buffer continuously immersed in all participating gas streams, which is cleanable by a pivotable blowing arm carrying spray nozzles on its free end, a bearing axis of the blowing arm being situated axially parallel to the flow direction of the gas streams in the area of the buffer and its imaginary extension penetrating the buffer, the buffer forming an axis of symmetry for two blowing arms, lying in a mirror image opposite to one another, each having at least one nozzle each for compressed air and for pressurized water.

Abstract: The invention relates to a regenerative heat exchanger for the heat exchange of gaseous media with a substantially cylindrical heat storage body. The invention further relates to a radial seal for use in a regenerative heat exchanger and a method for separating gaseous media in a regenerative heat exchanger. The heat storage body of the regenerative heat exchanger comprises a plurality of radially extending sector walls which subdivide the heat storage body into sectors. At least two heat storage chambers which are arranged behind one another in the radial direction are provided within a sector, which heat storage chambers are arranged for the through-flow of gaseous media.

Abstract: Air filters comprising thin-walled textile filter bodies have to be cleaned periodically. According to a method known to this purpose, the filtered material is loosened using pressure pulses in a flushing air flow. According to the invention, for generating the pressure pulses a plurality of small, quick-acting valves are in each case briefly opened, the opening moments being adapted to one another in such a way that partial pulses released thereby arrive simultaneously at the inlet of a flushing line common thereto.

Abstract: The invention concerns a heat exchanger with a large number of U-shaped tubes (3), preferably brought together to form at least one tubular bundle and arranged in a housing 2, and several partitions (4) subdividing the housing (2) into separate sections (5). For the formation of a heat exchanger which has a comparatively high efficiency even with increasing operation time, a heat exchanger is proposed in the invention that is characterized by at least one venting tube (6) that preferably extends through all sections (5) of the housing (2) and that has a number of venting holes (15) formed transversely to the longitudinal extension (14) of the tube.

Abstract: The invention concerns a heat exchanger for industrial installations, in particular for power plants, with at least one distributor for a fluid medium and at least one heat exchanger element attached to the distributor. The heat exchanger is composed of a sandwich-like configuration of distributors and heat exchanger elements consisting of metal sponges. The distributors are constructed as pipes or at least as semi-pipes connected with each other. Adjacent pipes or semi-pipes are connected with each other through the metal sponge. The sandwich profile of the invention may easily be manufactured in the required dimensions for industrial installations. Herein, particularly the low weight of such a heat exchanger module and the connection between shell and metal sponge, which may simply be made by means of soldering or welding, proves to be particularly advantageous. The metal foam may also be cast onto the shells.

Abstract: The invention concerns a hydraulic expansion process for tubes. With this process it is possible to increase the number of hydraulic tube expansions that can be implemented using an expansion device. The hydraulic expansion process in accordance with the invention is highly optimized with regard to control times, pressures and flows. In this process, pressure is produced in the pressure medium with hydraulic oil via a medium separator and a pressure intensifier. In addition, the invention specifies a device for implementing the expansion process and a process for determining the maximum number of hydraulic tube expansions that can be performed with a probe. Finally, the maximum number of expansions is determined taking into account the deformations of the expanded tubes.

Abstract: The invention relates to a gas supply for an electrostatic filter and an electrostatic filter arrangement which has an electrostatic filter and a gas supply. Here, the gas supply has an incoming flow channel of constant cross-sectional area, a gas inlet hood with cross-sectional area expanding in the direction of the electrostatic filter, and an admixture arrangement for a conditioning means, wherein at least one flow distributor is arranged in the expanded cross-sectional region of the gas inlet hood. Characterizing features include a first vortex arrangement generating a leading-edge vortex arranged in the incoming flow channel, a second vortex arrangement generating a leading-edge vortex arranged in the gas inlet hood before the flow divider in the gas flow direction, and the admixture arrangement arranged in the region of one of the two vortex arrangements.

Abstract: A mixer for mixing at least two flows of gas or other Newtonian liquids is provided herein. The mixer includes a main flow channel through which a first flow of gas passes, with an incorporated surface that is arranged therein and which affects the flow. This incorporated surface has leading edges that are orientated against the flow and about which the flow can move freely; the leading edges include a component that acts in the direction of the main flow of the gas flow as well as a component that acts transversely thereto. In order to ensure that an additional gas or liquid component is mixed in rapidly, provision is made such that the incorporated structure surface has a chamber into which a separate flow channel for a second gas flow leads and the chamber has outlet openings into the first gas flow on a rear side of the incorporated surface that faces away from the first gas flow.

Abstract: A device for moving transverse beams and workpieces suspended therefrom along a support rail in the longitudinal direction of the support rail. Each one of the transverse beams is connected by lifting devices, for lowering and lifting the workpieces connected to the transverse beam into and out of the zinc bath, to transport carriages riding on the support rail. The transverse beams have a vertically movable doctor blade arrangement at the leading end for removing contaminants from the surface of the zinc bath.