Downflow Patents (Class 122/258)
  • Publication number: 20150059659
    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.
    Type: Application
    Filed: December 26, 2012
    Publication date: March 5, 2015
    Applicants: KOREA INSTITUTE OF ENERGY RESEARCH, ES CO., LTD.
    Inventors: Seong-Ryong Park, Kyung-Soo Shin
  • Publication number: 20140352634
    Abstract: A ground supported single drum power boiler is described combining a refractory lined and insulated stepped floor; refractory lined and insulated combustion chamber; integrated fuel chutes configured to pre-dry wet solid fuel; internal chamber walls; configurable combustion air systems; a back pass with after-burner ports and cross flow superheaters; and a rear wall that acts as the downcomers feeding the other walls. A second embodiment is adaptable as a gasifier.
    Type: Application
    Filed: November 21, 2012
    Publication date: December 4, 2014
    Inventors: Eugene SULLIVAN, Daniel R. HIGGINS
  • Patent number: 7270086
    Abstract: A stream generator wherein a continuous evaporating heating surface is disposed in a heating gas duct through which a heating gas flows in an approximately horizontal manner. The continuous evaporating heating surface comprises a plurality of steam-generating pipes which are connected in a parallel manner enabling flowthrough of a flow medium, and is configured in such a manner that a steam-generating pipe which is heated more than another stream-generating pipe of the same continuous evaporating heating surface has a higher throughput of a flow medium compared to the other steam-generating pipe. An object is to produce a particularly low-cost steam generator exhibiting particularly high mechanical stability with different thermal loads.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: September 18, 2007
    Assignee: Siemens Aktiengesellschaft
    Inventors: Joachim Franke, Rudolf Kral
  • Patent number: 6868807
    Abstract: A steam generator has a continuous heating surface located in a fuel gas channel that can be traversed in an approximately horizontal fuel gas directions. The continuous heating surface has a plurality of steam generator pipes that are connected in parallel for the passage of a flow medium and is designed in such a way that a steam generator pipe, which is heated to a greater extent than another steam generator pipe of the same continuous heating surface, has a higher throughput of the flow medium than the other steam generator pipe. The aim is to produce a low-cost steam generator with a particularly high level of mechanical stability, even when subjected to different thermal stresses.
    Type: Grant
    Filed: May 27, 2002
    Date of Patent: March 22, 2005
    Assignee: Siemens Aktiengesellschaft
    Inventors: Joachim Franke, Rudolf Kral
  • Patent number: 5295457
    Abstract: A heat exchanger for use with a heat source for heating a vaporized liquid includes a housing composed of at least two essentially cuboid chambers that lie opposite one another and are connected to one another by at least one inclined pipe and has an arrangement for filling the housing with a vaporized liquid to an adjustable level. Preferably, a plurality of pipes are provided, which are arranged in vertically-extending planes, with the pipes of adjacent planes sloping in opposite directions.
    Type: Grant
    Filed: December 17, 1991
    Date of Patent: March 22, 1994
    Assignee: Rational Grosskuechentechnik Service GmbH
    Inventors: Gerd Gumienny, Jaroslav Klouda, Franz Koch
  • Patent number: 4643133
    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.
    Type: Grant
    Filed: March 14, 1985
    Date of Patent: February 17, 1987
    Inventor: Hector A. Dauvergne