Disperser Cooled By Fluid Additional To Furnace Feed Patents (Class 431/160)
  • Patent number: 9625156
    Abstract: A fuel injector assembly includes a fuel injector and a fuel injector shroud housing the fuel injector. The fuel injector includes a body and a nozzle coupled to the body. The fuel injector shroud includes a swirler device defining a center opening proximate to the nozzle of the fuel injector and a plurality of swirler holes surrounding the center opening, a body section with an air inlet configured to admit a flow of air into the fuel injector shroud and a dome section defining a mount for securing the swirler device to the body section, and at least one interior rib positioned on an interior surface of the dome section configured to direct the flow of air to the swirler holes of the swirler device such that the flow of air exiting through the swirler is mixed with the flow of fuel exiting the nozzle.
    Type: Grant
    Filed: October 30, 2013
    Date of Patent: April 18, 2017
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Nagaraja S. Rudrapatna, Thomas J. Bronson, Donald G. Godfrey
  • Publication number: 20150041718
    Abstract: The invention is directed to a burner for the gasification of a solid fuel, comprising a burner front having an opening for discharging a solid fuel, wherein the opening for discharging the solid fuel is fluidly connected to a central passage way and wherein the central passage way has a downstream part wherein the diameter of the passage way increases over a first length and subsequently decreases over a second length terminating at the burner front and wherein inside the downstream part of the central passage way a hollow member is positioned, and wherein the hollow member has an internal increasing diameter and inner decreasing diameter aligned with the increasing and decreasing diameter of the hollow member and wherein the connecting conduits have a discharge opening positioned in the diverging part of the hollow member.
    Type: Application
    Filed: September 26, 2011
    Publication date: February 12, 2015
    Applicant: SHELL OIL COMPANY
    Inventors: Johannes Hermanus Maria Disselhorst, Franciscus Gerardus Van Dongen
  • Publication number: 20150000343
    Abstract: A submerged burner for a glass- or rock-melting furnace, including a plurality of in-line injectors, each injector including a cylinder-shaped mixing chamber, with an ejection orifice, a fuel-supply duct and an oxidant-supply duct opening into the mixing chamber at the cylinder jacket in a direction causing a tangential flow of the fuel and of the oxidant relative to the cylinder jacket, and a duct system making it possible for a coolant to flow inside the burner, and, preferably on either side of the alignment of injectors, placed parallel to and all along the latter, solid metal sides rising from the injectors, and protective partitions situated on the top of the solid metal sides.
    Type: Application
    Filed: February 5, 2013
    Publication date: January 1, 2015
    Applicant: Saint-Gobain Isover
    Inventors: Yannick Lefrere, Julien Marie, David Galley, Sebastien Chesnel, Frederic Lopepe, Oleg Boulanov
  • Publication number: 20140227647
    Abstract: This invention relates to the production of synthesis gas by partial oxidation of liquid or gaseous, carbonaceous fuel in the presence of an oxygen-containing oxidant, wherein the fuel, the oxidant and a moderator are separately supplied to a burner and wherein the fuel and the moderator are mixed in a mixing chamber of the burner, before they are brought in contact with the oxidant. To reduce the load of the burner in particular during operation with transient conditions, the oxidant is centrally introduced through an outlet opening of the burner into a combustion chamber and the mixture of fuel and moderator is introduced through the outlet opening into the combustion chamber concentrically around the oxidant.
    Type: Application
    Filed: April 17, 2014
    Publication date: August 14, 2014
    Applicant: Lurgi GmbH
    Inventors: Matthias Mueller-Hagedorn, Holger Schlichting, Guenther Heinz
  • Publication number: 20140220501
    Abstract: A burner includes a generally cylindrical reactor chamber (1) including a housing (1?) having a proximal end (1p) and a distal end (1d). In the distal end of the reactor chamber (1) there is provided a catalyst (4). A fuel inlet (7) is provided in the proximal end of the reactor chamber. There are also a plurality of air inlets (22, 23; 24) arranged in the reactor wall at the proximal end. The inlets are configured to provide a rotating flow of the air injected into the reactor chamber. There is also provided a flow homogenizer (8; 30) extending over the cross-section of the reactor chamber at a position between the fuel inlet (7) and the catalyst (4).
    Type: Application
    Filed: September 10, 2012
    Publication date: August 7, 2014
    Applicant: Reformtech Heating Holding AB
    Inventors: Bard Lindstrom, Daniel Hagstrom, Paula Beneyto Satorres, Sara Marie Logdberg
  • Patent number: 8741180
    Abstract: This invention relates to the production of synthesis gas by partial oxidation of liquid or gaseous, carbonaceous fuel in the presence of an oxygen-containing oxidant, wherein the fuel, the oxidant and a moderator are separately supplied to a burner and wherein the fuel and the moderator are mixed in a mixing chamber of the burner, before they are brought in contact with the oxidant. To reduce the load of the burner in particular during operation with transient conditions, the oxidant is centrally introduced through an outlet opening of the burner into a combustion chamber and the mixture of fuel and moderator is introduced through the outlet opening into the combustion chamber concentrically around the oxidant.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: June 3, 2014
    Assignee: Lurgi GmbH
    Inventors: Matthias Mueller-Hagedorn, Holger Schlichting, Guenther Heinz
  • Publication number: 20140076211
    Abstract: A burner is provided for gasifying powdered fuel with a free oxygen-containing oxidant at temperatures up to 1900° C. and pressures up to 10 MPa. The burner includes a powder burner part having an oxidant channel and a powdered fuel channel, and a central pilot burner part. An annular channel for the outflow of an inert medium is arranged at the burner mouth between the pilot burner part and the powder burner part.
    Type: Application
    Filed: September 17, 2013
    Publication date: March 20, 2014
    Inventors: Dietmar Adler, Norbert Fischer, Manfred Jänig, Jürgen Noack, Manfred Schingnitz
  • Patent number: 8628324
    Abstract: A single burner snow melter is capable of a snow start. The burner assembly has a fuel burner having adjustable combustion output and a nozzle through which products of combustion emerge, and a combustion chamber which has a first portion in substantially air-tight communication with the fuel burner and which encloses the nozzle. A second portion of the combustion chamber is shaped and dimensioned such that the second portion is placed into a snow melting receptacle or pit. The combustion chamber has a plurality of directional discharge means formed at least on its second portion through which products of combustion from the fuel burner emerge, and thus agitate, and melt snow loaded into a tank or pit. The burner assembly also includes an air cooling assembly for supplying air to cool at least the first portion of the combustion chamber.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: January 14, 2014
    Assignee: Trecan Combustion Ltd
    Inventors: David Burnett, Glen Burnett, Steven Meredith
  • Publication number: 20130273480
    Abstract: An apparatus includes a tuyere, a plasma torch positioned to inject hot gas into the tuyere, and a plurality of nozzles configured to inject a combustible material into the tuyere for combustion of the combustible material within the tuyere. The apparatus can be used to practice a method including: injecting a combustible material into a plurality of tuyeres in a wall of a reactor vessel, using a plasma torch to inject hot gas into the tuyeres to ignite the combustible material, and directing heat from combustion of the combustible material into the reactor vessel to preheat the reactor vessel.
    Type: Application
    Filed: April 11, 2013
    Publication date: October 17, 2013
    Applicant: Alter NRG Corp
    Inventors: James Santoianni, Aleksandr Gorodetsky
  • Publication number: 20130145973
    Abstract: The present invention provide a fuel distribution device (9) for a burner, comprising an inlet end (9a), an outlet end (9b) and a distribution channel (9c) extending therebetween as well as n fuel feeding tubes (5) extending from the inlet end (9a) into the distribution channel (9c), characterized in that, the outlet end (9b) is provided with n groups of distribution opening, each of the groups includes m distribution openings distributed evenly along a circumference direction of the outlet end (9b), and in that the m feeding branch pipes (8) extending from each of the fuel feeding tubes (5) are communicated with the m distribution openings of each group respectively, wherein m, n are positive integers greater than or equal to 2. This design of the fuel distribution device improves the redundancy of the burner so as to ensure the even distribution of the fuel such as powdered coals at the outlet end of the fuel distribution device upon failure of one or several fuel feeding tubes.
    Type: Application
    Filed: December 24, 2009
    Publication date: June 13, 2013
    Applicant: Changzheng Engineering Co., Ltd.
    Inventors: Mingkun Wang, Congbin Jiang, Wei Xin, Jinjun Guo, Dong Ma
  • Publication number: 20130122442
    Abstract: A fluid-cooled through-port oxy-fuel burner for converting an air-fuel regenerator port from air-fuel combustion to oxy-fuel combustion and an associated furnace and method. The oxy-fuel burner is suitable for installing through a regenerator port neck. The burner has an elbow-like bend to accommodate the geometry of the regenerator port neck. The burner has a cooling fluid jacket, a fuel conduit, a first oxidant conduit, and optionally an oxidant staging conduit.
    Type: Application
    Filed: November 15, 2011
    Publication date: May 16, 2013
    Applicant: AIR PRODUCTS AND CHEMICALS, INC.
    Inventors: Mark Daniel D'AGOSTINI, Michael Edward HABEL, Matthew James WATSON
  • Patent number: 8413595
    Abstract: In a boiler furnace having nozzles for introducing combustion media such as air and coal, nozzle tip walls that have the greatest exposure to radiant heat and hot gases are provided with arrays of air holes that allow air to flow to the exposed sides of the walls from the opposite sides in order to reduce the temperature difference between the two sides and thereby reduce thermal distortion and damage resulting from oxidation.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: April 9, 2013
    Assignee: R-V Industries, Inc.
    Inventor: John Grusha
  • Patent number: 8382468
    Abstract: Method for combusting a solid phase fuel, where the fuel is caused, by the help of a non-pneumatic feeding element (11), to be fed to an inlet opening (11a) in a burner device (10) having a first inlet (13a) for the oxidant through which an oxidant is caused to flow via a first supply conduit (13). The first inlet (13a) for oxidant is caused to be arranged in the form of an opening surrounding the inlet opening (11a), in that the oxidant is caused to flow out through the opening (13a) with a velocity of at least 100 m/s, through a burner pipe (16) and out through a burner orifice (17) to a combustion space (18), so that the oxidant by ejector action causes the fuel to be conveyed through the burner pipe (16) and out through the burner orifice (17).
    Type: Grant
    Filed: April 22, 2009
    Date of Patent: February 26, 2013
    Assignee: AGA AB
    Inventor: Tomas Ekman
  • Patent number: 8353165
    Abstract: A combustor assembly that includes a casing that includes a plenum, a combustor liner positioned within the plenum and defining a combustion chamber there within, and a transition piece that includes a forward portion that is coupled to the combustion liner and an aft portion that extends from the forward portion. The aft portion includes a transition piece frame. The transition piece frame includes an upstream surface, a downstream surface, and a radially inner surface extending between the upstream and downstream surfaces. The radially inner surface includes a leading edge that extends between the radially inner surface and the upstream surface. A plurality of first cooling passages extend from the upstream surface to the downstream surface. Each of the first cooling passages is oriented obliquely with respect to the leading edge from the upstream surface towards the downstream surface.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: January 15, 2013
    Assignee: General Electric Company
    Inventors: Kevin Weston McMahan, Ronald James Chila
  • Publication number: 20120298922
    Abstract: This invention relates to the production of synthesis gas by partial oxidation of liquid or gaseous, carbonaceous fuel in the presence of an oxygen-containing oxidant, wherein the fuel, the oxidant and a moderator are separately supplied to a burner and wherein the fuel and the moderator are mixed in a mixing chamber of the burner, before they are brought in contact with the oxidant. To reduce the load of the burner in particular during operation with transient conditions, the oxidant is centrally introduced through an outlet opening of the burner into a combustion chamber and the mixture of fuel and moderator is introduced through the outlet opening into the combustion chamber concentrically around the oxidant.
    Type: Application
    Filed: November 12, 2010
    Publication date: November 29, 2012
    Applicant: LURGI GMBH
    Inventors: Matthias Mueller-Hagedorn, Holger Schlichting, Guenther Heinz
  • Publication number: 20120100496
    Abstract: The invention relates to a burner, particularly for the gasification of solid carbonaceous materials by partial combustion. The burner comprises a central channel (2) and at least one coaxial channel (6), the channels leading from a upstream supply side to a downstream discharge end. The channels (2, 6) are defined by concentric walls (3, 5) having free downstream outer ends profiled to define an annular slit (10) forming a discharge end of the coaxial channel (6) and converging towards an adjacent discharge end of the central channel (2). A connection block (11) intersects at least the coaxial channel (6), and optionally also present cooling jackets. The block (11) is provided with one or more openings (12) in line with the corresponding channel parts at both sides of the block (11).
    Type: Application
    Filed: August 5, 2008
    Publication date: April 26, 2012
    Inventors: Anne Boer, Henricus Gijsbertus Van Schie
  • Patent number: 8151716
    Abstract: Apparatus for protecting a feed injector and methods of assembly are provided. In one aspect, a method of assembling a feed injector cooling apparatus includes coupling a coolant source in flow communication with a mounting flange, coupling the mounting flange to a first end of a sheath, wherein the sheath circumscribes a feed injector barrel, and coupling a cap to a second end of the sheath, wherein the cap includes a center port through which a feed injector tip projects into a gasifier.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: April 10, 2012
    Assignee: General Electric Company
    Inventors: Monty Lee Harned, Sunilkant A. Patel, Salvatore Bernard Vasi
  • Patent number: 8127553
    Abstract: A jet impingement array design and method are disclosed for efficiently cooling the liner of a gas turbine combustion chamber, while eliminating almost all effects of coolant gas crossflow. The design includes an array of extended jet ports for which the distance between the ends of the jet ports and the surface to be cooled progressively decreases from upstream to downstream. Spent air from upstream jets is directed away from downstream jets, thereby reducing the detrimental effects of crossflow, and optimizing heat transfer.
    Type: Grant
    Filed: February 27, 2008
    Date of Patent: March 6, 2012
    Assignee: Solar Turbines Inc.
    Inventors: Srinath Varadarajan Ekkad, Eric Ian Esposito, Yong Weon Kim
  • Publication number: 20120017849
    Abstract: A combustion apparatus includes a cylindrical combustion chamber surrounded by an inner wall. A cooling chamber comprises an intermediate wall spaced from the inner wall. Cooling water flows in and out lower and upper sides of the intermediate wall, to cool the inner wall by the cooling water that flows into a space formed between the inner and intermediate walls of the cooling chamber. A lateral combustion air supply chamber comprises an outer wall spaced from an outer side of the intermediate wall. Combustion air is supplied at an upper side of the outer wall to thereby make the air in a tangential direction with respect to the cylindrical outer wall turn and fall in a space formed between the intermediate wall and the outer wall, so that the combustion air is supplied to the combustion chamber via an opened lower portion of the lateral combustion air supply chamber.
    Type: Application
    Filed: December 7, 2010
    Publication date: January 26, 2012
    Inventor: Sang Kwon KIM
  • Patent number: 8083519
    Abstract: A burner comprises a body, a nozzle, and at least one attachment element for removably attaching the nozzle to the body. The body defines an oxidant inlet, a feedstock inlet, a body outlet, and one or more passages for conveying the oxidant from the oxidant inlet to the body outlet and for conveying the gasification feedstock from the feedstock inlet to the body outlet. The nozzle defines a nozzle inlet and a nozzle outlet, wherein the nozzle inlet is configured to receive the oxidant and the gasification feedstock from the body outlet and the nozzle outlet is configured to discharge the oxidant and the gasification feedstock into the reaction chamber. The at least one attachment element removably attaches the nozzle to the body such that the nozzle inlet is in fluid flow communication with the body outlet when the nozzle is attached to the body.
    Type: Grant
    Filed: June 24, 2011
    Date of Patent: December 27, 2011
    Assignee: ConocoPhillips Company
    Inventor: Steven L Douglas
  • Patent number: 8070483
    Abstract: A burner comprising channels for the separate supply of a liquid fuel and an oxygen-containing gas. The burner comprises a twin-fluid atomizer head comprising first flow-through passages fluidly connected to the supply channel for oxygen-containing gas and second flow-through passages fluidly connected to the fuel supply channel. The second flow-through passages exit into the first flow-through passages at a point before the first flow-through passages exit into a coaxial ring of orifices. A cooling jacket envelopes the supply channel walls. The orifices run through the atomizer head at a distance from the cooling jacket. The atomizer head can, for example, be made of a first metal, such as a copper alloy, and the cooling jacket can be made of a second metal with a lower thermal conductivity than the first metal, for example steel.
    Type: Grant
    Filed: November 26, 2008
    Date of Patent: December 6, 2011
    Assignee: Shell Oil Company
    Inventor: Lucien Zalman
  • Patent number: 8070484
    Abstract: The invention comprises a combination burner for the gasification of pulverized fuels with an oxidation means containing free oxygen at ambient or higher pressures, as well as temperatures between 800-1800° C., with the ignition device of the pilot burner with flame monitoring and the pulverized fuel burner being integrated as a combination burner and all operating channels being routed separately from each other up to the mouth of the burner and the media carried by the channels only being mixed at the mouth of the burner. When the pilot burner is dismantled the eddy bodies 14 attached to its sleeve in the main burner oxidation means supply 17 can be exchanged quickly and easily and thus the main burner flame adapted in the optimum way to the reaction chamber contour of the reactor.
    Type: Grant
    Filed: August 21, 2008
    Date of Patent: December 6, 2011
    Assignee: Siemens Aktiengesellschaft
    Inventors: Tino Just, Christian Reuther, Manfred Schingnitz
  • Publication number: 20110256489
    Abstract: A burner comprises a body, a nozzle, and at least one attachment element for removably attaching the nozzle to the body. The body defines an oxidant inlet, a feedstock inlet, a body outlet, and one or more passages for conveying the oxidant from the oxidant inlet to the body outlet and for conveying the gasification feedstock from the feedstock inlet to the body outlet. The nozzle defines a nozzle inlet and a nozzle outlet, wherein the nozzle inlet is configured to receive the oxidant and the gasification feedstock from the body outlet and the nozzle outlet is configured to discharge the oxidant and the gasification feedstock into the reaction chamber. The at least one attachment element removably attaches the nozzle to the body such that the nozzle inlet is in fluid flow communication with the body outlet when the nozzle is attached to the body.
    Type: Application
    Filed: June 24, 2011
    Publication date: October 20, 2011
    Applicant: CONOCOPHILLIPS COMPANY
    Inventor: Steven L. DOUGLAS
  • Publication number: 20110217661
    Abstract: The invention relates to a burner, particularly for the gasification of solid carbonaceous materials by partial combustion. The burner comprises a central channel (2) and at least one coaxial channel (6). The channels (2, 6) are defined by concentric walls (3, 5) having free downstream outer ends profiled to define an annular slit (10) forming a discharge end of the coaxial channel (6) and converging towards an adjacent discharge end of the central channel (2). The burner (1) is encased by a cooling jacket (14) and comprises a front face (21) with double walls spaced by one or more baffles (28) defining a coolant flow path operatively connected to the cooling jacket (14). The cooling jacket (14) has an upstream section (14A) and a transitional section (25) narrowing down to the front face (21) having a smaller outer diameter than the upstream cooling jacket section.
    Type: Application
    Filed: August 5, 2008
    Publication date: September 8, 2011
    Inventors: Govert Gerardus Pieter Van Der Ploeg, Henricus Gijsbertus Van Schie, Johannes Gerardus Maria Schider
  • Patent number: 7771192
    Abstract: An object of the present invention is to provide a combustion apparatus equipped with a pilot burner and a main burner capable of establishing a stable combustion state without involving generation of CO and unburned substances at the main burner even when the supply of a gas fuel to the pilot burner is stopped. A combustion apparatus equipped with a pilot burner and a main burner according to the present invention is characterized in that, when the main burner is in a combustion state, the amount of air supplied to the pilot burner can be adjusted. Here, the amount of air supplied to the pilot burner is an amount allowing the pilot burner to be cooled.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: August 10, 2010
    Assignee: Miura Co., Ltd.
    Inventors: Kanta Kondo, Koichi Masuda, Tatsuya Fujiwara
  • Publication number: 20100186417
    Abstract: A method for protecting a burner from being heated excessively during the combustion of a fuel in a combustion chamber is provided. The fuel is injected through a fuel nozzle at the same time as an inert gas in the surroundings of the injected fuel is injected into the combustion chamber in such a manner that the fuel is separated spatially from an oxidizer by the inert gas until an ignitable mixture of the fuel is produced.
    Type: Application
    Filed: July 3, 2008
    Publication date: July 29, 2010
    Inventors: Malte Blomeyer, Olga Deiss, Andre Kluge, Thomas Kunadt, Berthold Köstlin, Martin Lenze, Paul Pixner, Uwe Sieber
  • Publication number: 20100116226
    Abstract: An embodiment of a boiler comprises a fan, an air-gas premixing burner, a combustion chamber faced by a combustion head of the burner and a heat exchanger comprising a plurality of tubes in which the water of a heating system runs. The heat exchanger comprises cooling tubes arranged in contact either directly or with the interposition of an element formed by high heat conducting material, with a diffuser of the burner.
    Type: Application
    Filed: November 7, 2007
    Publication date: May 13, 2010
    Applicant: GAS POINT S.R.L.
    Inventors: Nicola Lovascio, Raffaello Rastelli, Claudio Zatti
  • Publication number: 20100107640
    Abstract: A cooling enclosure for a valve includes an elongated housing body having a pair of housing portions and a pair of removable end plates, the pair of housing portions separable along at least one longitudinally-extending seam. Fastener devices are provided for securing the pair of housing portions engaged along the at least one longitudinal extending seam. One or more apertures are provided for accommodating a like number of valve fittings, and cooling air inlet and outlet openings are also provided in the housing body for supplying and removing cooling air to the housing body.
    Type: Application
    Filed: October 30, 2008
    Publication date: May 6, 2010
    Inventors: David W. Smith, Doug Byrd, Michael P. Black, Swapnil Tiwari
  • Patent number: 7677884
    Abstract: A burner for burning a gaseous fuel containing hydrogen with a gaseous oxidizer containing oxygen, having a combustion chamber in which the combustion reaction takes place during operation of the burner and having a wall structure which seals off the combustion chamber on the input end and which has multiple fuel openings through which the fuel is introduced into the combustion chamber during operation of the burner and has multiple oxidizer openings through which the oxidizer is introduced into the combustion chamber during operation of the burner.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: March 16, 2010
    Assignee: J. Eberspacher GmbH & Co. KG
    Inventors: Andreas Kaupert, Gunter Eberspach, Andreas Collmer
  • Publication number: 20090061370
    Abstract: A burner comprises a body, a nozzle, and at least one attachment element for removably attaching the nozzle to the body. The body defines an oxidant inlet, a feedstock inlet, a body outlet, and one or more passages for conveying the oxidant from the oxidant inlet to the body outlet and for conveying the gasification feedstock from the feedstock inlet to the body outlet. The nozzle defines a nozzle inlet and a nozzle outlet, wherein the nozzle inlet is configured to receive the oxidant and the gasification feedstock from the body outlet and the nozzle outlet is configured to discharge the oxidant and the gasification feedstock into the reaction chamber. The at least one attachment element removably attaches the nozzle to the body such that the nozzle inlet is in fluid flow communication with the body outlet when the nozzle is attached to the body.
    Type: Application
    Filed: August 28, 2007
    Publication date: March 5, 2009
    Applicant: CONOCOPHILLIPS COMPANY
    Inventor: Steven L. DOUGLAS
  • Patent number: 7473095
    Abstract: A method and apparatus for afterburning of hydrocarbon with air. Exhaust gas from a process in which hydrocarbon has been evolved is combusted with air to produce reduced NOX emissions. Hydrocarbon fuel is burned in an air mixture at an equivalence ratio of less than 1 oxygen to 1 hydrocarbon fuel (ER<1:1) above a temperature of about 900° C. in a burning zone for a sufficient time to combine substantially all of the oxygen in the fuel/air mixture with disassociated carbon and hydrogen components of the hydrocarbon fuel and to produce carbon dioxide, water, and a portion of unburned light hydrocarbons. The unburned light hydrocarbon gas is cooled in a cooling zone to below a relatively lower temperature of about 800° C. The unburned light hydrocarbon gas is oxidized substantially completely at less than a temperature of about 800° C. so that a reduced amount of thermal NOX results from the combustion and oxidation.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: January 6, 2009
    Inventors: Siddhartha Gaur, Vibha Bansal
  • Patent number: 7473094
    Abstract: The invention consists of a pulse combustor, comprising two spaced apart outer plates, the outer plates having flat outer regions, conical regions inside of the flat regions and central hubs, where the volume between conical regions of the plates defines a combustion chamber. The pulse combustor further comprises a plurality of intermediate plates located between the outer plates, the plurality of intermediate plates being spaced apart to form tailpipe regions therebetween and between the outer plates and adjacent ones of the intermediate plates and a burner coupled to one of the hubs, the burner operative to ignite a fuel/air mixture in the combustion chamber. The outer and intermediate plates have spiral coolant passageways therein for conducting cooling fluid to cool expanding gases traveling between the plates through the tailpipe regions. The invention further consists of a burner assembly for use in a combustion chamber.
    Type: Grant
    Filed: October 1, 2003
    Date of Patent: January 6, 2009
    Assignee: Fama Holdings Ltd.
    Inventor: Mehrzad Movassaghi
  • Patent number: 7469489
    Abstract: The present invention relates to a method relating to the operation of a burner and/or cooler (3), wherein gases are caused to flow through an inner pipe (7), out into an outer pipe (5) which surrounds the inner pipe (7), and back through that part of the volume of the outer pipe (5) not accommodated by the volume of the inner pipe (7). The invention is characterised by placing an inner bottom plates (8) in the outer pipe (5) in spaced relationship with the closed bottom (9) of said outer pipe (5), whereby the gases flowing through the inner pipe (7) and out into the outer pipe (5) are caused to turn back and pass between the outer pipe (5) and the inner pipe (7), thereby creating a gas pocket (12) between the bottom (9) of said outer pipe (5) and the bottom plate (8).
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: December 30, 2008
    Assignee: Sandvik Intellectual Property AB
    Inventor: Thomas Lewin
  • Patent number: 7455060
    Abstract: A startup burner assembly for use in snow melting applications, and which permits initiation of snow melting without first supplying water as a coolant. The startup burner assembly comprises a fuel burner having adjustable combustion output and a nozzle to facilitate the emergence of products of combustion, and a combustion chamber having a first portion in substantially air-tight communication with the fuel burner and enclosing the nozzle and a second portion shaped and dimensioned for disposition into a snow melting receptacle or pit. The combustion chamber has a plurality of discharge holes formed at least on the second portion thereof to permit the egress of products of combustion from the fuel burner into the tank or pit, and thereby permit agitation and melting of snow loaded therein, The startup burner assembly also includes an air cooling assembly for supplying air to cool at least the first portion of the combustion chamber.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: November 25, 2008
    Assignee: Trecan Combustion Limited
    Inventors: David Burnett, Steven Meredith, Glen Burnett
  • Publication number: 20070275335
    Abstract: A bottom-up cocurrent combustion furnace for the production of synthetic microspheres by thermal expansion of glass particles is provided having improved characteristics with regard to anti-fouling, process efficiency, and yield. The disclosed furnace uses preheated combustion air to preheat the feed material and to convey the feed material in a dilute phase transport regime to a burner. The combustion air, fuel, and feed material are premixed prior to being injected though the burner. The feed material rapidly expands as it is ejected through the burner and through a flame and then rapidly cools to solidify the microspheres. Additional features are provided to prevent the furnace from fouling by keeping the feed material away from the furnace walls, removing feed material that adheres to the furnace walls, and collecting feed material that agglomerates or does not expand.
    Type: Application
    Filed: May 25, 2006
    Publication date: November 29, 2007
    Inventors: Giang Biscan, Charles D. Blake, Ronald W. Cresswell, Robert E. Everhart, Hamid Hojaji, Thinh Pham, Mark G. Stevens
  • Patent number: 7143610
    Abstract: A method and system feed and burn pulverized fuel, such as petroleum coke, in a glass melting furnace having burners associated with sealed regenerative chambers which act as heat exchangers. The system supplies the pulverized fuel for melting glass raw materials. The emissions of flue gases produced by the combustion process of the fuel in the furnace are controlled in order to maintain clean the flue gases and for reducing the emission of impurities from the fuel such as SOx, NOx, and particulates. The regenerative chambers are manufactured with selected refractories such as magnesium, zircon-silica-alumina, or magnesia and zirconium-silicate, for counteracting the erosive and corrosive effects produced by the combustion process of the fuel in the glass melting chamber. A burner feeds the petroleum coke and simultaneously mixes a primary air and pulverized fuel-air mixture for the burning of the pulverized fuel.
    Type: Grant
    Filed: November 18, 2003
    Date of Patent: December 5, 2006
    Assignee: Vitro Global, S.A.
    Inventors: Roberto Marcos Cabrera-Llanos, Rafael Valadez-Castillo, Arturo Keer-Rendon
  • Patent number: 7117675
    Abstract: A system for cooling at least one gas turbine liquid fuel component located in a high temperature environment to eliminate coking in the component is disclosed. The system includes a sleeve surrounding the liquid fuel component, a device for providing a current of cool air, and a conduit connected between the cool air device and the sleeve to direct the current of cool air into the sleeve to cool the liquid fuel component. The system can also include a manifold connected to the conduit and a plurality of second conduits for connecting the manifold to a plurality of sleeves surrounding a plurality of liquid fuel components, each sleeve being connected to a corresponding second conduit. Each sleeve includes a plurality of spacing devices for centering the sleeve around the at least one liquid fuel component so as to form an annulus between the sleeve and the liquid fuel component through which the current of cool air flows.
    Type: Grant
    Filed: June 15, 2004
    Date of Patent: October 10, 2006
    Assignee: General Electric Company
    Inventors: Howard Jay Kaplan, David Francis Acquavella, Steven Patrick Junquera, David Martin Johnson, Christopher David Miller, Robert Joseph Iasillo, Gregory James Hampson, Kevin Jon O'Dell
  • Patent number: 7104068
    Abstract: Aspects of the invention relate to a system for reducing stagnation between substantially adjacent components while providing enhanced heat distribution properties in the corners and edges of the components. Each component is generally hollow and has two walls disposed substantially orthogonal to each other. Each of the two walls includes a substantially planar region, having an associated thickness, that transitions into a corner region. The two walls join in the corner region to form an outer edge portion and an inner edge portion. The interior surface of each wall in the corner region approaches the exterior surface as the interior surface advances toward the inner edge portion such that the thickness in the corner region does not exceed the thickness of the substantially planar region. The components are substantially adjacent such that the outer edge portions are disposed opposite and substantially parallel to each other.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: September 12, 2006
    Assignee: Siemens Power Generation, Inc.
    Inventor: Ricardo Ferreira Moraes
  • Patent number: 7066401
    Abstract: A lance-type spraying assembly for directing a reducing agent into a combustion zone or discharging combustion gases for Nox emission control. The spraying assembly including a lance body having an inlet end and a downstream end and a spray nozzle arranged at the downstream end of the lance body. The lance body includes an air passage for connection to an air supply, a liquid reducing agent supply passage for connection to a liquid reducing agent supply and a liquid reducing agent return passage. The liquid reducing agent supply passage communicates with the spray nozzle. The liquid reducing agent return passage communicates with the liquid reducing agent supply passage near the downstream end of the lance body for recirculating a portion of the liquid reducing agent and extends near the liquid reducing agent supply passage along at least a portion of the length thereof in order to help cool the liquid reducing agent therein. The liquid reducing agent return passage is sealed against the spray nozzle.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: June 27, 2006
    Assignee: Spraying Systems Co.
    Inventors: David C. Huffman, Michel Thenin
  • Patent number: 6918255
    Abstract: A system for cooling at least one gas turbine liquid fuel component located in a high temperature environment to eliminate coking in the component is disclosed. The system includes a sleeve surrounding the liquid fuel component, a device for providing a current of cool air, and a conduit connected between the cool air device and the sleeve to direct the current of cool air into the sleeve to cool the liquid fuel component. The system can also include a manifold connected to the conduit and a plurality of second conduits for connecting the manifold to a plurality of sleeves surrounding a plurality of liquid fuel components, each sleeve being connected to a corresponding second conduit. Each sleeve includes a plurality of spacing devices for centering the sleeve around the at least one liquid fuel component so as to form an annulus between the sleeve and the liquid fuel component through which the current of cool air flows.
    Type: Grant
    Filed: December 3, 2002
    Date of Patent: July 19, 2005
    Assignee: General Electric Company
    Inventors: Howard Jay Kaplan, David Francis Acquavella, Steven Patrick Junquera, David Martin Johnson, Christopher David Miller, Robert Joseph Iasillo, Gregory James Hampson, Kevin Jon O'Dell
  • Patent number: 6892654
    Abstract: A coal gasification feed injector is disclosed having an oxidation-resistant insert which prevents oxidative corrosion of the shield, and the subsequent damage to the underlying face of the feed injector. The life of the feed injector, and thus the length of a single gasification campaign, is thereby extended.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: May 17, 2005
    Assignee: Eastman Chemical Company
    Inventors: Gary Scott Whittaker, James Wesley Adams
  • Patent number: 6884064
    Abstract: A burner protection shield is provided at a distance and in an area below a burner lance that is used in a rotary kiln for the production of cement clinker. Such a mechanism enhances the useful lifetime of the burner lance.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: April 26, 2005
    Assignee: KHD Humboldt Wedag AG
    Inventors: Richard Cusick, John Schureck
  • Publication number: 20040161717
    Abstract: A catalyst combustion apparatus, includes: a fuel feed course for feeding liquid fuel; an air feed course for feeding air; a mixing unit for mixing fuel to be fed from the fuel feed course with air to be fed from the air feed course; a vaporizing unit for heating mixture obtained by mixing in the mixing unit to vaporize the liquid fuel; a catalyst heating unit disposed on the downstream side of the vaporizing unit in contact with or in close proximity to the vaporizing unit in terms of conduction of heat, for carrying an oxidation catalyst component; and a catalyst combustion unit provided on the downstream of the catalyst heating unit, having a multiplicity of conductive holes, and the vaporizing unit is capable of utilizing heat from the catalyst heating unit.
    Type: Application
    Filed: June 19, 2003
    Publication date: August 19, 2004
    Inventors: Motohiro Suzuki, Tatsuo Fujita, Yoshitaka Kawasaki, Tetsuo Terashima
  • Patent number: 6652267
    Abstract: The burner has at least two fuel-carrying tubes which are arranged in parallel, the distance between adjacent fuel-carrying tubes being 5 to 30 cm. Each fuel-carrying tube is surrounded by a steam-carrying tube, which at its orifice end has a supply line for oxygen-containing gas. The steam-carrying tubes are surrounded by a common first cooling chamber through which cooling liquid is passed, the first cooling chamber constituting an annular chamber and extending into the area of the orifice ends of the steam-carrying tubes. Coaxial to the first cooling chamber a common second cooling chamber preferably is provided, which is surrounded by the first cooling chamber.
    Type: Grant
    Filed: May 6, 2002
    Date of Patent: November 25, 2003
    Assignee: Metallgesellschaft AG
    Inventors: Lothar Brehm, Waldemar Liebner, Gunter Quass, Uwe Zwiefelhofer
  • Patent number: 6497118
    Abstract: In furnaces for producing high purity fused silica glass boules, the refractory in the area of the burner holes reaches such elevated temperatures that cause impurities to leach out and the dissociation of the refractory, causing contamination of the silica glass. In order to reduce the temperature of the burner hole refractory, a porous insert or liner is positioned within the burner hole and a suitable gas is supplied thereto. The gas diffuses through the porous liner and not only cools the liner and refractory, but also forms a boundary layer along an inside surface of the insert that prevents particle buildup. The cooling of the insert and surrounding burner hole refractory prevents contamination of the silica glass from the refractory.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: December 24, 2002
    Assignee: Corning Incorporated
    Inventor: Paul M. Schermerhorn
  • Patent number: 6464490
    Abstract: A pulsating combustor has a plurality of annular plate elements (12), which are stacked in spaced vertical alignment so as to define a central space (14). There is a plurality of slot-like passages (18), one such passage between each adjacent pair of elements. There is at least one combustion chamber (21) in communication with at least one slot-like passage. Fuel and combustion air are fed into the combustion chambers. There is a spark plug for igniting a fuel-air mixture in the combustion chamber. Preferably there is a first housing (24) defining the combustion chamber and another housing defining a collection chamber for combustion gases emerging from the passages.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: October 15, 2002
    Assignee: Clean Energy Combustion Systems, Inc.
    Inventor: John D. Chato
  • Publication number: 20020090587
    Abstract: A high-temperature burner is provided that is suited for the incineration of shredded plastics, tires, carpet or similar materials. The burner walls are protected from the heat of the ongoing combustion reaction by an annular curtain of water vapor or carbon dioxide that takes the radiant heat energy of the high-temperature combustion reaction. The annular curtain removes the heat energy from the vicinity of the burner walls before the energy can be conveyed to them. Higher temperature combustion can be attained without resorting to jacketed burner construction or the use of refractory materials.
    Type: Application
    Filed: January 5, 2001
    Publication date: July 11, 2002
    Inventor: Vincent R. Pribish
  • Patent number: 6358041
    Abstract: A burner nozzle assembly for the production of synthesis gas in a synthesis gas generation chamber has a cooling water jacket face that is protected from hot gas corrosion by an annular shield fabricated from a high melting point material. The heat shield is affixed to the cooling water jacket face by means of a threaded retaining member that engages in one of the surfaces an aligned channel having correspondingly mating threads.
    Type: Grant
    Filed: April 21, 2000
    Date of Patent: March 19, 2002
    Assignee: Eastman Chemical Company
    Inventors: Gary Scott Whittaker, Steven James Hrivnak, Woodward Clinton Helton, Daniel Isaiah Saxon
  • Patent number: 6322351
    Abstract: Process for the combustion of hydrocarbon fuel in a burner being exposed to corrosive atmosphere, wherein outer surface of the burner being protected by passing a non-corrosive atmosphere along the outer burner surface.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: November 27, 2001
    Assignee: Haldor Topsoe A/S
    Inventors: Thomas Sandahl Christensen, Ivar Ivarsen Primdahl, Olav Holm-Christensen, Peter Seier Christensen
  • Patent number: 6179609
    Abstract: A compact torch for use in semiconductor processing which may be used both to produce steam and to perform wet or dry dichlorethylene (DCE) oxidation at varying concentrations with no reconfiguration of the torch, providing full temperature of control of the oxidation product gases, with redundancy to provide automatic backup of heating and ignition elements, and with non-mechanical flow control of the oxidation product gases.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: January 30, 2001
    Assignee: Persys Technology Ltd.
    Inventors: Gideon Drimer, Leo Mendelovici, Nachum Borivker