Abstract: A steam generator tube support structure having three sets of mutually parallel strips each set extending in a different direction oriented sixty degrees from the other two. One set of strips is slotted at both edges. The other two sets of strips are slotted on one edge. The strips engage to form hexagonal cells for supporting and aligning a triangular array of tubes. Dimples in the strips provide point tube support.

Abstract: An improved centrifugal separator for vapor-liquid mixtures having a vertical upflow conduit closed at the top end and open at the bottom end. A plurality of curved arms similar in shape to a truncated torus of rectangular cross-section penetrate and extend within the conduit at its upper portion. A second plurality of curved arms are located immediately below the upper group and are contiguous thereto. The vertical upflow conduit has a lesser internal diameter in the lower portion, interconnected with a greater internal diameter portion in the upper portion by a frusto-conical section.

Abstract: An apparatus for removing particulate matter from a flue gas stream exiting a vapor generator and recirculating said gas back to the generator. The apparatus includes a back face, a bottom face and a recirculation duct. The recirculation duct is located in front of the apparatus, thereby increasing the access area in the vicinity of the generator burners and facilitating maintenance of said burners. The back face, bottom face and recirculation duct envelope ash hoppers and other internal components of the apparatus.

Abstract: A pair of parallel fluid flow connected steam-water drums and associated piping for natural or assisted circulation steam generators including downcomer pipes for receiving water from the drums and being disposed below and in equispaced relationship with the drums. A plurality of supply tubes for connecting the downcomer pipes with each drum, the supply tubes being equally divided between the drums; and a plurality of riser tubes for delivering a steam-water mixture to the drums, the riser tubes being equally divided between the drums.

Abstract: The present invention relates to a solar central receiver or steam generating and superheating unit (20) comprised of a first and a second series of circularly disposed tube panels (21) and (23), respectively. The first series (21) including steam superheating tube panels (12-12') and (14-14') and the second series including steam generating tube panels (16-16'). The steam generating tube panels (16-16') being interposed between at least some of the steam superheating panels (12-12') and (14-14') and the solar heat source.

Abstract: A support structure for pressure vessels including a plate member welded to the vessel and a sleeve passing through the member and engaged by a pin and clevis type support.

Abstract: In accordance with an embodiment of the invention, an array of apertured flat plates support the tubes in a heat exchanger. Each aperture has at least three bights that provide individual fluid passageways when the associated tube is lodged in place. At least three inwardly protruding members that separate the bights restrain tube movement. Each of these members define arcs of a circle that has a diameter which is only slightly larger than the outside diameter of the respective tube. During heat exchanger assembly, this slightly larger diameter of the circle defined by the inwardly protruding members accommodates departures in the tubing from a perfectly straight condition. In operation, the individual tubes will tend to lay against one or two of the members in each aperture in almost line contact to prevent "crevice corrosion.

Abstract: A grouping of straight tubes, bundled and packed for shipment, having the tube ends on one end of the bundle deformed for locating and supporting the tubes in a tube sheet, with the deformations located and produced in a manner resulting in a compact shipping package and improvements in handling at the job site and place of manufacture.

Abstract: A method of forming a tube by pushing it through a tilted die to form a bend or change circumferential variations in wall thickness.

Abstract: A method and apparatus of forming a tube by pushing it through a die to form high quality tubular fittings.

Abstract: A method of electroslag welding using a blanket of fiberized siliceous material on a stationary consumable guide in a narrow gap welding process.

Abstract: A low mass thixotropic alumina-silica refractory mix for producing kiln furniture having smooth surfaces combined with low weight and consequent low heat capacity.

Abstract: A method for inhibiting the deposition of porous solid products on the internal surface of fluid conducting tubes in a heat absorbing zone of a steam generating unit by the use of internally plated tubes.