Abstract: There is provided a suspended combustion type power steam generator capable of rapid and high-temperature pyrolysis using FRDF for extending residence time of high-temperature gas, and particularly the present invention improves the heating conditions of fluid in an arch water pipe, a heating water pipe and a down pipe by extending the residence time of high-temperature gas inside a combustion chamber. The present invention is an improvement of a power steam generator using fine refuse derived fuel (FRDF) which is an alternative energy source, and a flameless combustion device using fossil fuel capable of structuring a new additional facility so as to address the possibility of irregular raw material supply in the ethyl alcohol fuel operation for new renewable energy, that is, FRDF.

Abstract: A very high efficiency steam producing heater and boiler is disclosed wherein an outer vault encases an inner casing with a small exhaust passage there between. The walls of the casing contain a series of capillary tubes through which water flows. A combustion chamber in the lower portion of the casing provides a source of heat for the water which flows from the casing into a series of water drums located near the combustion chamber. From the water tubes, the heated water then passes through a serpentine series of steam tubes and then upward into one or more steam drums. Steam passes through the steam drums out of the casing and vault for commercial or residential usage.

Abstract: A natural circulation water tube package boiler is assembled in a factory in two self-contained steam generating units. The first unit has a combustion chamber, but no convection tubes. The second unit has convection tubes, but no combustion chamber. Each unit has a mud drum, a steam drum, and tubes connecting the drums. Each steam generating unit is transported separately by truck or railcar to the operating site, where the rear end of the first unit is connected to the front end of the second unit by a large connecting duct; the mud drums of the respective units are connected to each other by water piping; the steam drums of the respective units are connected to each other by water piping and steam piping located above and below the waterline respectively; and the steam drum of the second unit is connected to the water drum of the first unit by water piping.

Abstract: The present document describes a boiler for heating a cold fluid with a hot fluid.

Abstract: An evaporator including a lower drum, an upper drum, and at least one tube extending between the lower drum and the upper drum. The plurality of tubes have fluid passageways therein extending from the lower drum to the upper drum. A duct is provided having a heating gas passageway provided therein. The at least one tube extends through the heating gas passageway. The fluid passageways define an overall flow path from the lower drum to the upper drum extending in a direction substantially counter-current to an overall flow path defined by the heating gas passageway extending from a gas inlet of the heating gas passageway to a gas outlet thereof.

Abstract: A package water tube boiler has offset upper and lower steam and water drums located adjacent its opposite side walls, with a generally square combustion chamber between the drums. Connecting the drums are generally L-shaped riser and downcomer tubes including convection tubes and radiant tubes extending in vertical and horizontal runs along the sides, top, and bottom of the combustion chamber. The tubes, especially the inboard radiant tubes, are configured, and their entrances and exits to and from the drums are located, so as to permit increased efficiency and steam generation capacity without increasing the package boiler's outside dimensions, to shield the drums from thermal radiation emanating from the combustion chamber, to locate the boiler's center of gravity equidistant from its side walls, and to fix the upper drum to and support it by the boiler's end walls.

Abstract: A cartridge boiler designed for use in multiples in a furnace, each cartridge boiler having a vertically oriented cylindrical drum top and bottom with hemispherical end caps, with a plurality of free-expansion boiler tubes having internal feed water supply tubes depending in a cluster through the bottom end cap. The supply tubes are gravity fed by an open feed water pan within the drum, the feed water supply being controlled by a boiler level monitoring device. The boilers are used in multiples to generate the steam required, the relative small size of individual cartridge boiler being designed to minimize fabrication costs by minimizing drum diameters, and maximize system performance by allowing select cartridge replacement without system shutdown.