Abstract: A device for cleaning the heat-exchanging surface of a storage medium of a regenerative heat exchanger which has a rotatably driven hood. The device utilizes rinsing or cleaning fluid which is discharged from at least one spray nozzle essentially parallel to the planes of the heat-exchanging surfaces. The spray nozzles are movable relative to the storage medium. In order to provide a structurally simple, light-weight cleaning device which can be housed in a space-saving manner, the spray nozzle is disposed at the end of an at least two-part, telescopic nozzle holder which is mounted on the hood of the regenerative heat exchanger and is connected by a supply line with a transfer mechanism disposed in the center of rotation of the hood. The transfer mechanism includes a tubular piece which rotates with the hood, and a stationary housing which is sealed off relative to the tubular piece. The adjustment movement of the movable part of the nozzle holder can be derived from the rotational movement of the hood.

Abstract: A natural-draft cooling tower having a plurality of preferably roof-shaped heat exchange elements for condensing the turbine exhaust steam from a power plant. A portion of the heat exchange elements are connected to operate as condensers, and another portion of the heat exchange elements are connected to operate as dephlegmators, reflux condensers or fractionating columns, with the latter being disposed downstream, when viewed in the direction of flow of the steam, of the heat exchange elements that operate as condensers. In order to assure a complete condensation, and a residual condensation in the heat exchange elements that operate as reflux condensers, under all weather and load conditions, the heat exchange elements that operate as reflux condensers are each provided with a respective fan, the conveying capacity of which can be regulated.

Abstract: A regenerative heat exchanger having a heat-exchanging storage medium which is provided with a plurality of flow channels. At each end there is provided a respective hood, which divides the storage medium via radial sealing members into at least one portion which receives heat-emitting gases, and at least one portion which receives heat-absorbing gases, with said portions, as a result of a continual relative rotation between the storage medium and the hood, alternately receiving the two types of gases. Sealing members are also disposed along the periphery between the hoods and a housing which accommodates the storage medium. In order to simplify the construction, reduce the amount of space required, and to improve the efficiency and avoid periodic down times for cleaning and in particular the leading edges of the storage medium, the radial sealing members are embodied as sealing strips which rest yieldingly directly against the respective planar end face of the storage medium.

Abstract: A forced-air cooled condenser system having a plurality of heat exchange elements, preferably roof-shaped heat exchange elements with a steam distribution line which forms the ridge of the elements. Cooling air is supplied to the heat exchange elements via fans. The heat exchange elements are disposed directly next to a turbine housing, and are disposed parallel to one another. In order to prevent the danger of a recirculation of the warm air which emerges from the heat exchange elements, a concentrated air draft in the form of a sort of aerodynamic wall is blown out along at least that edge of the condenser system which extends parallel to the turbine housing. The velocity of flow of the air draft is greater than the exit velocity of the cooling air from those heat exchange elements which are disposed in the middle.

Abstract: A forced-air cooled condenser system having a plurality of roof-shaped heat exchange elements of finned tubes, to which cooling air is supplied via fans, and to which the steam which is to be condensed is supplied via a steam distribution line which forms the ridge of the elements. The heat exchange elements, which are located directly adjacent to the turbine housing, are disposed next to one another or side by side. The ridges of the heat exchange elements are disposed parallel to one another. In order to prevent the danger of a recirculation of the warm air which leaves the heat exchange elements, that heat exchange element which is spaced the furthest from the turbine housing is disposed higher than the heat exchange elements which are located therebetween. This is preferably accomplished via higher supports than exist for the heat exchange elements located therebetween.

Abstract: Apparatus for the mixing of different streams of air and particularly dry and moist streams of air, in a cooling tower. In order to obtain an effective low-loss mixing over a short flow path by simple means, eddy fields are produced by at least one cylindrical flow body arranged transversely to the direction of flow of one of the streams of air (the main air stream) in the cooling tower as a result of the burbling or separation of the flow on the sides of the body. The transverse components of the eddy fields produce an intensive mixing of the different streams of air.

Abstract: The present invention relates to a method and devices for mixing at least two individual streams having different variables. In order to produce a low-loss, effective mixing within a short flow section, at least one eddy impulse is produced in the cross section of flow of at least one individual stream, which impulse spreads out downstream transverse to the direction of flow to form a discrete eddy system whose components transverse to the main direction of flow overlap into the other flow cross section of the other individual stream. This eddy impulse can be produced either by at least one curved surface or by at least one edge of a surface or of a body. The eddy impulse is preferably produced by two burble (flow break-away) edges of a delta-shaped insert element which extend at an acute angle to each other.

Abstract: An apparatus invention relates to an apparatus for pulling transverse fins onto a plurality of pipes which are arranged fixed in position alongside of each other by means of carriers the ends of which are operatively supported on respective endless carrier-conveyor chains between a working position engaging the fin plates and a disengagement position releasing the fin plates, the carrier being provided with at least one support foot which holds the carrier in the working position. The support foot is supported on support members of a control device which holds the carriers in the working position on the transport path until release of the transverse fins and releases them for swinging depending on the fin spacing and the transverse fins which have already been pulled-on, the point of release moving in a direction opposite the direction of movement of the carrier conveyor chains.

Abstract: An apparatus for pulling transverse fins onto a plurality of pipes which are arranged fixed in position alongside of each other by means of carriers the two ends of which are swingably supported on respective endless carrier conveyor chains between a work position engaging the fin plates and a disengagement position releasing the fin plates, the carriers being provided with a support foot which holds the carriers in the work position. The support foot is supported on support members of an endless control chain which extend over the respective length of the pull-on region for the transverse fins and are moved by the control chain opposite the direction of movement of the carrier conveyor chains for the displacement of the point of release of the carriers corresponding to the transverse fins which have already been pulled on.

Abstract: An apparatus for damping the noise of water charged in a cooling tower onto the top of heat exchanger elements by a distributing device and dropping down from the bottom of the heat exchange elements into a collecting basin, by means of vertically inclined impact surfaces of rigid insert elements which are arranged above the collecting basin in the cooling tower. In order to avoid the direct impingement of drops of water onto the surface of the water without impairing access to the collecting basin even with a greatly varying level of water, the lower edge of the rigid impact surfaces is arranged above the maximum water level in the collecting basin and extended by a flexible guide tail which extends into the water of the collecting basin with a minimum water level. This guide tail can be pushed aside and held out of the way upon cleaning and continuously diverts the water film into the vertical direction so that a noisy separation of the water film is made impossible.

Abstract: A cooling tower with corrugated ripple plate for a substantially vertical assembly in wet cooling towers or combined wet-dry cooling towers in counter-flow or cross-flow construction, of which the portion at the upper end, the corrugation and the spacing relative to the respective adjacent equally-formed ripple plates are formed such that cooling water which is distributed from a distribution device above the ripple plate ripples running down on both surfaces of the ripple plates as substantially uniform thickness water films, the latter being collected in water collector channels arranged at the lower ends of the ripple plates and being fed to a cooling water circuit. One water collector channel is attached on the lower edge of the ripple plates on each side thereof for collecting the water adjacent the lower ends of the ripple plates, from which the collected water is fed back to the cooling water circuit to the distributor device.

Abstract: A regenerative air preheater with guide devices serving the supply and exhaust of flue gas as well as air to be heated from at least two separated partial streams and with a heat exchanger body, which heat exchanger body, by means of a relative movement between the guide devices and the heat exchanger body, alternately has passed through it heat emitting flue gas and air to be heated, whereby the temperature of the separated partial streams is regulatable. On the side of the flue gas outlet from the heat exchanger body between the dome-like guide devices for the air to be heated, a cover cap is arranged in the vicinity of one exhaust gas partial stream, which cover cap is provided with individual exhaust channels for transporting of the one exhaust gas partial stream into the other exhaust gas partial stream.

Abstract: A device for the cold rolling of narrow flat lands on the cylindrical surface of heat exchanger tubing, just prior to the winding onto the tubing of one or more metal strips for the production of finned tubing, the device having pressure rollers on pressure levers carried by a journalled supporting spindle which rotates with the tubing, and a control sleeve inside the hollow spindle which, under the action of a linear actuator, interrupts the rolling action as desired, while the winding operation continues.

Abstract: A safety device for sailing yachts with substantially flat and/or construction-free deck and with articulation points for the shrouds, which articulation points are located spaced from the ship's side. At both sides of the mast, respectively, one safety railing each is arranged. The safety railing extends arched substantially in the longitudinal direction of the ship as well as spaced from the ship's side and is secured on the shrouds.

Abstract: In a rotary regenerative air heater, an improved annular heat exchanger stack composed of several layers of heater lamellae packages and grate-like guide screen layers arranged on both ends of each lamellae package. The guide screen layers guide the flows of flue gas and air between stack layers and also serve to hold together the lamellae of each lamellae package with the aid of connecting tie rods.

Abstract: An apparatus for securing assembly plates in washing or spraying installations of heat exchangers, particularly cooling towers, with at least two layers of vertical assembly plates, with the layers being disposed one above the other and the assembly plates in each layer, respectively, being arranged parallel to one another, and from layer to layer at a predetermined spacing as well as at a predetermined angle with respect to each other. A spacer is arranged diagonally to the angularly crossing assembly plates, which spacer is provided with lower and upper guide slots under the circumstances oriented at half the crossing angle with respect to its longitudinal extent. The guide slots of each set run parallel to one another. The upper and lower guide slots respectively run in the crossing angle relative to each other and have contact surfaces respectively formed spaced apart corresponding to the predetermined spacing of the assembly plates of the layers which are disposed one above the other.

Abstract: A device for the metallic sealing of an intermediate partition on the smooth inner wall of a cylindrical vessel, particularly with large diameters, by means of a sealing ring which is variable with respect to its diameter, on which sealing ring, the intermediate partition is fastened. The sealing ring is divided into at least two parts, and is able to be expanded at the separation positions, respectively, by one wedge each.

Abstract: A tube wall made of tubes extending parallel to one another and horizontally to inclined, which are provided with opposite fins on the longitudinal edges of which adjacent tubes are welded gas-tight to one another. The fins are formed as a continuous band exceeding in width the outer diameter of the tube. The band is arranged tangentially on the outside of the tube and the bands, which are welded with each other, are suspendable on a supporting structure for assuming the forces resulting from the dead weight of the tube wall and from additional loads.

Abstract: An apparatus for the bending of large area construction units, particularly of tightly welded tube walls for boiler construction, with a supporting table for that part of the construction unit which is not to be deformed, which is held down at least in the vicinity of the bending zone by means of a moveable press. A pivot table is provided for bending the remaining part of the construction unit, which pivot table is equipped with a slide plate abutting the construction part to be bent. The slide plate is guided freely displaceable relative to the pivot table in the longitudinal direction of the same.

Abstract: An apparatus for suspension of a tube wall, particularly a combustion chamber wall, made for example of helical finned tubes which are welded gas-tight with one another extending horizontally or inclined, on an upper part of a steam generator made of vertical tubes, by means of vertically extending tie rods which are connected with the tube wall over welding bridges. Respectively pairs of tie rods which extend spaced by a small distance from one another are secured on the upper part of the steam generator by means of a common connection piece and are welded on their adjacent longitudinal edges over common welding bridges with the tube wall. The welding bridges are spaced from one another in the longitudinal direction of the tie rods.