Patents Assigned to ALSTOM Technology
  • INTERNALLY STIFFENED EXTENDED SERVICE HEAT RECOVERY STEAM GENERATOR APPARATUS
    Publication number: 20150136044
    Abstract: A heat recovery steam generator (“HRSG”) includes a first casing having an interior enclosing at least one duct for gas to flow therein along a gas flow axis. Each duct is defined by duct defining members that are spaced apart from each other and extend into the interior of the first casing. A plurality of stiffening members are elongated along the gas flow axis. Each of the stiffening members are positioned between two of the duct defining members. The stiffening members and duct defining members have a substantially similar coefficient of thermal expansion.
    Type: Application
    Filed: November 15, 2013
    Publication date: May 21, 2015
    Applicant: ALSTOM Technology Ltd
    Inventors: Donald Richard PALMER, Richard F. Moore, Ashok Prabhu
  • EVAPORATOR APPARATUS AND METHOD OF OPERATING THE SAME
    Publication number: 20150136045
    Abstract: A heat exchanger apparatus for receiving water from a steam drum (1) and providing steam and heated unevaporated liquid water to the steam drum includes a first evaporator (EVAP-1) and a second evaporator (EVAP-2). The first evaporator can receive water from a steam drum via a first feed conduit (9) and the second evaporator can receive water from a second feed conduit (11). Both evaporators can output heated fluid to the steam drum via a combined evaporator output conduit (13). Each first evaporator passageway (14) only makes a single pass through a gas duct (15) having a heated gas flow (7) passing therethrough while each second evaporator passageways (24) can make one or more passes through the gas duct for transferring heat from the gas to the fluid within the evaporators. A portion of the first feed conduit can also have a pre-specified volume a pre-specified height below the first inlet (10).
    Type: Application
    Filed: November 21, 2013
    Publication date: May 21, 2015
    Applicant: ALSTOM Technology Ltd
    Inventors: Suresh K. Shenoy, Jay Brian Anderson, Rahul J. Terdalkar, Donald William Bairley
  • Screening device and method of screening
    Patent number: 9033155
    Abstract: A screening device (1) comprises a first compartment (3) for receiving solid particulate material, a second compartment (5) for receiving screened particulates from said first compartment (3), a perforated wall (7) separating the first (3) and second (5) compartments from each other for screening the solid particulate material into at least two particulate size-dependent fractions, and a gas permeable layer (21) for fluidization of particulates in said first compartment (3). The first compartment (3) is provided with a solid particulate material inlet (9) located at a first end (22) of screening device (1), and a particulate material outlet (11) located at a second end (24) of screening device (1), with perforated wall (7) extending from first end (22) to second end (24) of screening device (1), enabling simultaneous transport and screening of at least a portion of said solid particulate material.
    Type: Grant
    Filed: June 28, 2011
    Date of Patent: May 19, 2015
    Assignee: ALSTOM Technology Ltd
    Inventor: Anders Kenneth Sorhuus
  • SYSTEM AND METHOD FOR CONTROLLING MOLTEN SALT TEMPERATURE
    Publication number: 20150128931
    Abstract: The molten salt solar tower system 100 is provided for controlling molten salt temperature in a solar receiver 130 for effective operation of the system 100 while without degrading physical properties of molten salt. The system 100 includes two circuits, first 140 and second 150. The first circuit 140 is configured to supply relatively cold molten salt in the solar receiver 130 for heating, and the second circuit 150 is configured to supply a predetermined amount of the relatively cold molten salt in the first circuit 140, as and when the temperature of the relatively hot molten salt circulating through the solar receiver 130 exceeds a predetermined set temperature value thereof.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 14, 2015
    Applicant: Alstom Technology Ltd
    Inventors: Abhinaya JOSHI, James A. MCCOMBE, Shizhong YANG
  • AUXILIARY STEAM SUPPLY SYSTEM IN SOLAR POWER PLANTS
    Publication number: 20150128593
    Abstract: An auxiliary steam supply system in a solar power plant includes a solar receiver having a superheater section, a turbine, a steam circuit, a thermal energy storage arrangement and an auxiliary steam circuit. The thermal energy storage arrangement, including a thermal energy storage medium, is configured for the steam circuit to receive a portion of the steam to heat the thermal energy storage medium. The thermal energy storage arrangement may receive the steam from any location across the superheater section. Moreover, the auxiliary steam circuit generating auxiliary steam flow, which thermally communicates with the thermal energy storage arrangement to be heated, is introduced to any location across the superheater section. Capacity of the thermal energy storage arrangement may be relatively small as compared to the solar receiver and may be compact for placement on top of a tower.
    Type: Application
    Filed: November 8, 2013
    Publication date: May 14, 2015
    Applicant: ALSTOM Technology Ltd
    Inventors: Rahul J. TERDALKAR, Romain GIRARD
  • Supporting basket for an end winding
    Patent number: 9027233
    Abstract: A supporting basket for an end winding of a stator winding of an electrical machine, the supporting basket including: at least one supporting ring; a plurality of supporting brackets arranged circumferentially distributed along the at least one supporting ring and attached to the at least one supporting ring; and a plurality of round connectors arranged radially externally on the supporting brackets, the round connectors extending circumferentially and being attached to the supporting brackets; wherein the supporting brackets, the at least one supporting ring, and the round connectors comprise an impregnation formed by dip-impregnation as a preassembled unit.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: May 12, 2015
    Assignee: Alstom Technology Ltd.
    Inventors: Daniel Hediger, Francesco Stallone
  • Process and system for cleaning a gas stream
    Patent number: 9028784
    Abstract: The present application relates to a system and a process for gas cleaning.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: May 12, 2015
    Assignee: ALSTOM Technology Ltd
    Inventors: Sanjay Kumar Dube, David James Muraskin
  • Combustion chamber and method for damping pulsations
    Patent number: 9028247
    Abstract: A combustion chamber is provided and includes a combustion device and a supply circuit arranged to feed fuel at a plurality of locations of the combustion device. The supply circuit includes manifolds collecting fuel to be distributed among at least some of the locations, ducts extending from the manifolds and feeding the locations. Some of the ducts carry valves having a plurality of predetermined working positions, each working position corresponding to a different fuel flow through the valve.
    Type: Grant
    Filed: November 15, 2011
    Date of Patent: May 12, 2015
    Assignee: Alstom Technology Ltd
    Inventors: Piotr Siewert, Rudolf Lachner
  • Method of treatment of amine waste water and a system for accomplishing the same
    Patent number: 9028654
    Abstract: Disclosed herein is a system comprising an evaporation unit comprising a first heat exchanger in fluid communication with a second heat exchanger; where the first heat exchanger is operative to heat an effluent stream comprising an amine solvent and/or amine byproducts and water and to discharge the effluent stream to the second heat exchanger; where the second heat exchanger is operative to convert the effluent stream into a distillate stream and a concentrate stream; and a reverse osmosis unit in fluid communication with the evaporation unit; where the reverse osmosis unit comprises a first reverse osmosis unit that is operative to receive the distillate stream and to separate water from byproducts of the amine solvent such that the water has a purity of greater than 95%, based on the weight of the distillate stream.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: May 12, 2015
    Assignee: ALSTOM Technology Ltd
    Inventors: Bjoern Ungerer, Christoph Weingaertner, Hans-Peter Dornik
  • Method and system of monitoring mass in a pulverized coal fired furnace
    Patent number: 9027422
    Abstract: A system 100 of monitoring mass in a furnace is described having a number of hanger rods 110 used to support at least a portion of the furnace. The system has at least one pressure sensor 111 that may be a load washer 111 operatively engaging a hanger rod 110 that provides a signal indicative of an amount of tension on the hanger rod 110. A pivoting unit 107, 109 distributes the force over the surface of the pressure sensor 111. A processor 200 monitors the signals from the pressure sensors 111 to set alarms when there is a mass overload, or adjust the operation of the furnace. The processor 200 may also predict when an overload will occur by extrapolating pressure sensor 111 readings forward into the future.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: May 12, 2015
    Assignee: ALSTOM Technology Ltd
    Inventors: Richard L. Burrington, William K. Montuori, William F. Rice, Thomas W. Sambor, Lloyd E. Steen
  • Method for filtration of harmful gas effluents from a nuclear power plant
    Patent number: 9023132
    Abstract: A method for filtration of harmful gas effluents from a nuclear power plant including the steps of providing a gas effluent from a nuclear power plant, the effluent including a mixture of gases; filtering the harmful, notably radioactive elements from the gas effluent by membrane separation through at least one membrane, the membrane separation being achieved by sifting, sorption and/or diffusion; storing the filtered harmful elements in storage reservoirs, and discharging the processed gas effluent to the atmosphere.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: May 5, 2015
    Assignee: ALSTOM Technology Ltd
    Inventor: Philippe Chantereau
  • Thermally loaded, cooled component
    Patent number: 9022726
    Abstract: A thermally loaded, cooled component thermally coupled to a cooling system configured to receive a gaseous cooling introduced in a forced manner from outside that flows through the cooling system so as to absorb and transport heat away from the component as a result of thermal contact with the component. The component includes at least one Helmholtz resonator configured to improve thermal contact between the cooling medium and the component.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: May 5, 2015
    Assignee: Alstom Technology Ltd
    Inventors: Jaroslaw Leszek Szwedowicz, Stefan Irmisch
  • Concrete volute pump
    Patent number: 9022732
    Abstract: A centrifugal pump is provided capable of pumping liquid volume flow rates of at least 20 m3/sec. The pump includes a centrifugal impeller rotatable about an axis and operable to direct a liquid towards a concrete volute arranged around the impeller. The pump further includes fixed fin-like elements arranged between the impeller and the volute. The elements form a discontinuous barrier around the impeller and are effective to reduce uneven radial thrusts exerted by the water on the centrifugal impeller, while limiting the water flow rate in a simple and economic manner.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: May 5, 2015
    Assignee: Alstom Technology Ltd.
    Inventors: Romain Julien Mathieu Prunieres, Florent Longatte, Franvois-Xavier Catelan
  • Journal bearing pad for turbine
    Patent number: 9022658
    Abstract: A hydrodynamic journal pad bearing is provided having several pads circumferentially distributed around the rotor of a large steam turbine with each pad mounted onto a platform separating the pad from a cylindrical cage in turn connected to the floor of a hall housing the turbine and having an interface between at least one of the several pads and the platform on which the at least one of the several pads is mounted is formed such as to include at least two areas with different curvatures to increase the stiffness of the interface in the event of a relative movement between the pad and the platform.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: May 5, 2015
    Assignee: ALSTOM Technology Ltd
    Inventors: Arnaud Buguin, Jacques Mizera
  • Gas turbine combustion device
    Patent number: 9021815
    Abstract: The combustion device (1) of a gas turbine includes burners (2) connected to a front plate (5) of a combustion chamber (3). The front plate (5) has, spaced apart from one another, a front sheet (8) and an impingement sheet (7) with aligned holes (11, 12) housing the burners (2). A piston ring (15) is provided between the front sheet (8) and impingement sheet (7) to seal the holes (11, 12). The axial length of the border of the hole (11, 12) of the front sheet (8) and/or impingement sheet (7) is longer than the thickness of the corresponding front sheet (8) and/or impingement sheet (7).
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: May 5, 2015
    Assignee: Alstom Technology Ltd
    Inventors: Remigi Tschuor, Bogdan Trbojevic, Urs Benz
  • CONDUCTOR BAR WITH MULTI-STRAND CONDUCTOR ELEMENT
    Publication number: 20150114676
    Abstract: A conductor bar including a plurality of Roebel-transposed conductor elements is disclosed. At least one of the conductor elements possesses a plurality of conductive strands stacked relative to each other. The strands used to form the at least one conductor element follow a common path within the conductor bar. An insulator electrically insulates the conductor elements from each other. Also provided are a method of manufacturing a conductor bar and an electric machine including a plurality of conductor bars.
    Type: Application
    Filed: October 31, 2013
    Publication date: April 30, 2015
    Applicant: ALSTOM Technology Ltd.
    Inventors: Grégoire VIENNE, Hossein Safari-Zadeh, Johann Haldemann
  • Nickel-based superalloy
    Patent number: 9017605
    Abstract: A nickel-base superalloy is characterized by the following chemical composition (details in % by weight): 7.7-8.3 Cr, 5.0-5.25 Co, 2.0-2.1 Mo, 7.8-8.3 W, 5.8-6.1 Ta, 4.9-5.1 Al, 1.0-1.5 Ti, 1.0-2.0 Re, 0.11-0.15 Si, 0.1-0.7 Hf, 0-0.5 Nb, 0.02-0.17 C, 50-400 ppm B, remainder Ni and production-related impurities. The alloy is distinguished by a very high resistance to oxidation, resistance to corrosion and good creep properties at high temperatures.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: April 28, 2015
    Assignee: Alstom Technology Ltd.
    Inventors: Mohamed Youssef Nazmy, Andreas Kuenzler, Claus Paul Gerdes
  • Process for producing a body provided with a slot as a test crack
    Patent number: 9016104
    Abstract: A process for producing a reference body (10) provided with a slot (17) as a test crack for the nondestructive testing of materials can be used flexibly and includes the following steps: a) a reference body (10) and a mask (11) provided with a slot pattern (12) are provided; b) the mask (11) is applied to the reference body (10); c) material is removed from the reference body (10) through the mask (11) with an abrasive water jet (16); and d) the mask (11) is taken off the reference body (10).
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: April 28, 2015
    Assignee: Alstom Technology Ltd.
    Inventors: Roland Richard Moser, Philipp Roth
  • Remote visual inspection system
    Patent number: 9019364
    Abstract: A visual inspection system [100] includes a remote end [110] that is moved through a conduit [1] with a flexible pushrod [400]. The remote end [110] having at least one carriage assembly [130] with encoders [140] indicating a distance traveled within the conduit [1]. The visual inspection device [100] has a longitudinal camera [150] to identify view down the length of the conduit [1], but also has at least one transverse camera [160] adapted to visually inspect an inside surface [3] of the conduit [1]. Also, the transverse camera [160] may be used to inspect other conduits that connect to conduit [1].
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: April 28, 2015
    Assignee: ALSTOM Technology Ltd
    Inventors: Jacques L. Brignac, Robert E. Lucas, George Rowland
  • Turbine blade
    Patent number: 9017035
    Abstract: A blade is provided and includes a platform and a root configured to be connected to a blade carrier. Airfoil portions extend from opposite sides of the platform. Each airfoil portion defines an operating surface being the surface facing the other airfoil portion. An operating surface of one of the airfoil portions defines a suction side and the other operating surface of the other airfoil portion defines a pressure side.
    Type: Grant
    Filed: December 2, 2010
    Date of Patent: April 28, 2015
    Assignee: Alstom Technology Ltd.
    Inventors: Robert Marmilic, Carlos Simon-Delgado, Herbert Brandl