Patents Assigned to Alstom (Schweiz) AG
  • Patent number: 6702574
    Abstract: A burner for operating a heat generator, includes a swirl generator (100) for a combustion air flow (115) means for injecting at least one fuel into the combustion air flow. A mixing section is arranged downstream of this swirl generator, which mixing section has, within a first section in the flow direction, a number of ducts in a transition piece (200) for the transfer of a flow formed in the swirl generator into a mixing tube (20) connected downstream of this transition piece. A combustion space (30) is arranged downstream of this mixing tube. The swirl generator (100) is integrated into an inlet flow cross section (10) which is essentially closed by the swirl generator, and is subjected to the combustion air flow (115).
    Type: Grant
    Filed: June 25, 2001
    Date of Patent: March 9, 2004
    Assignee: Alstom (Schweiz) AG
    Inventor: Klaus Döbbeling
  • Patent number: 6531104
    Abstract: A flue gas mixture containing sulfur oxides is scrubbed in a countercurrent spray tower absorber with a spray of ammonium sulfate liquor and the scrubbed gas stream containing ammonia aerosols, sulfur trioxide aerosols and ammonia slip is passed to a wet electrostatic precipitator for the removal of the aerosols and slip. The ammonium sulfate liquor in the absorber system is passed into a separate reaction tank where ammonia and air are injected. The ammonia and sulfur oxides react in the separate reaction tank to form ammonium sulfite which is oxidized to the sulfate by the air. The gases and vapors from the separate reaction tank are separately scrubbed and the gases then returned to the absorber.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: March 11, 2003
    Assignee: Alstom (Schweiz) AG
    Inventors: Donald C. Borio, David J. Muraskin, Phillip C. Rader, Mark A. Walters
  • Publication number: 20020132203
    Abstract: A gas pipe ignitor 10 is provided which is operable to ignite a non-premixed air and fuel mixture and includes an air supply conduit 20 which has an axis ASL, a supply end 22, and a flame end 24 axially spaced from the supply end 22. The gas pipe ignitor also includes a fuel supply conduit 26 extending axially interiorly within at least a portion of the air supply conduit 20 and having an entrance end 28 and an exit end 30. The gas pipe ignitor further includes two branch passages 32 each communicated with the fuel supply conduit 26. The gas pipe ignitor also includes a deflector body 38 disposed in the air supply conduit 20 and is configured relative to the air supply conduit 20 such that air flowing in the air supply conduit 20 flows along a pass through passage PTP from upstream of the upstream most surface 40 of the deflector body 38 to downstream of the deflector body 38.
    Type: Application
    Filed: March 19, 2001
    Publication date: September 19, 2002
    Applicant: ALSTOM (Schweiz) AG
    Inventors: Carl D. Edberg, Raymond D. MacWhinnie, David J. Matteson, Raymond W. Cournoyer
  • Patent number: 6443728
    Abstract: A gas pipe ignitor 10 is provided which is operable to ignite a non-premixed air and fuel mixture and includes an air supply conduit 20 which has an axis ASL, a supply end 22, and a flame end 24 axially spaced from the supply end 22. The gas pipe ignitor also includes a fuel supply conduit 26 extending axially interiorly within at least a portion of the air supply conduit 20 and having an entrance end 28 and an exit end 30. The gas pipe ignitor further includes two branch passages 32 each communicated with the fuel supply conduit 26. The gas pipe ignitor also includes a deflector body 38 disposed in the air supply conduit 20 and is configured relative to the air supply conduit 20 such that air flowing in the air supply conduit 20 flows along a pass through passage PTP from upstream of the upstream most surface 40 of the deflector body 38 to downstream of the deflector body 38.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: September 3, 2002
    Assignee: Alstom (Schweiz) AG
    Inventors: Carl D. Edberg, Raymond D. MacWhinnie, David J. Matteson, Raymond W. Cournoyer
  • Patent number: 6360543
    Abstract: A steam condenser (1) which, relative to a steam turbine (2), is arranged at equal ground level and into which turbine steam flows in the horizontal direction through the condenser neck (3) has two or more modules (4a, 4b) in which the steam condenses on cooling tubes (10). The modules (4a, 4b) are, in accordance with the invention, separated by a defined intermediate space (7). The central, mutually facing module walls (9) are supported and connected to one another by connecting parts (8). This arrangement contributes to a defined stress distribution in the central module walls (9). In a particular embodiment, bypass conduits (20), which lead the steam from the boiler directly into the steam condenser (1) while bypassing the turbine (2), are arranged in the intermediate space (7). For this purpose, the bypass conduits (20) lead to a steam introduction appliance (21), which is arranged at the condenser neck (3) at the level of the intermediate space (7).
    Type: Grant
    Filed: February 9, 2001
    Date of Patent: March 26, 2002
    Assignee: Alstom (Schweiz) AG
    Inventors: Ferenc Koronya, Guenter Schmalzbauer, Vaclav Svoboda