序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
21 熱回収が改善された燃焼 JP2016541502 2014-12-19 JP2017501957A 2017-01-19 ルーク・ジャリー; ユーセフ・ジョウマニ; バートランド・リュークス; レミ・ツィーアヴァ
燃料(32)を予熱された酸素富化酸化剤(43)で燃焼させるプロセスにおいて、酸素富化酸化剤(41)は第一の熱交換器(40a)の中で、生成された排ガス(11)の残留熱の第一の部分によって加熱され、加熱された酸化剤は空気および/またはほぼ不活性のガス(空気等)と混合されて酸素富化酸化剤(42)が得られ、酸素富化酸化剤は第二の熱交換器(40b)の中で、排ガス(11)の残留熱の第二の部分により予熱される。【選択図】図1
22 ガスタービン及び熱交換器を有する溶融炉からの排気からのエネルギー回収 JP2015548705 2013-12-05 JP2016510393A 2016-04-07 ジョーマーニ、ヨーゼフ; ル・ディラシュ、ジョセリーン; トラニエ、ジャン−ピエール; ダビディアン、ベノワ
本発明は、溶融チャンバ(100)が、燃焼によって加熱され、燃焼排気(20)が、熱伝達ガスとして使用される空気(30)を加熱するために使用され、加熱された空気(31)が、燃焼酸素(40)及び/又は気体燃料(50)を予熱する(130)ために使用され、予熱から生じた低温空気(31)が圧縮され、圧縮された低温空気(33)が、燃焼排気(20)との熱交換によって加熱され(150)、加熱された圧縮空気(34)の膨張によって、機械エネルギー及び/又は電気エネルギーが生成される、溶融ユニット及び溶融方法に関する。
23 ガスタービン及び熱交換器を使用する溶融炉からの排気からのエネルギー回収 JP2015548706 2013-12-05 JP2016510373A 2016-04-07 ジョーマーニ、ヨーゼフ; ル・ディラシュ、ジョセリーン; トラニエ、ジャン−ピエール; ダビディアン、ベノワ
本発明は、空気が燃焼によって生成される排気との熱交換によって加熱される燃焼加熱溶融チャンバを備える炉(10)における溶融ユニット及び溶融方法に関する。加熱された空気は、電気的及び/又は機械的エネルギーを生成するために、ガスタービン(41、42)で使用される。さらに、ガスタービンからの流出物は、溶融チャンバの上流での燃焼酸素及び/又は気体燃料の予熱に使用される。
24 Method and apparatus for controlling combustion in gas turbine JP2008133899 2008-05-22 JP2008291845A 2008-12-04 ASTI ANTONIO; PACI MARIATERESA; D ERCOLE MICHELE; BETTI MASSIMO; BEI SIMONE; TONNO GIOVANNI; STEWART JESSE; ORGERO FRANCESCO
<P>PROBLEM TO BE SOLVED: To describe a method and apparatus for controlling the combustion in a gas turbine. <P>SOLUTION: The method includes phases measuring, by means of one or two calorimeters, temperature, calorific value and relative density of a gaseous fuel in order to determine the Wobbe index, comparing the measured Wobbe index value with a predefined Wobbe index value for the gaseous fuel and regulating the temperature of the gaseous fuel by means of at least one heat exchanger in order to reach the predefined Wobbe index value. The method may also include a phase using a second gaseous fuel, having a different Wobbe index from the gaseous fuel, or a fuel obtained by mixing the gaseous fuel and the second gaseous fuel, according to arbitrary proportions and variable with time. <P>COPYRIGHT: (C)2009,JPO&INPIT
25 REDUCTION OF REGENERATOR CLOGGING US15934245 2018-03-23 US20180283789A1 2018-10-04 Hisashi Kobayashi; Kuang-Tsai Wu
A thermochemical regenerator system is operated without encountering accumulation of unwanted solids on the interior surfaces of the passages through which flue gas passes.
26 Temperature control of a fluid discharged from a heat exchanger US14777161 2014-03-11 US09920713B2 2018-03-20 Gregory A. Batenburg; Jason J. Coatta
A reciprocating piston cryogenic pump has been suspended from stroking when process fluid discharge temperature from a vaporizer dropped below a threshold to prevent freezing of a heat exchange fluid circulating through the vaporizer and damage to downstream components. Suspension of the pump results in a decrease of process fluid pressure downstream of the vaporizer, which is undesirable. In the present technique, a temperature is monitored correlating to process fluid temperature downstream of the vaporizer. The amount of process fluid discharged from the pump in each cycle is adjusted as a function of the temperature such that the average residence time of the process fluid in the vaporizer is increased as the discharge amount decreases, increasing process fluid discharge temperature. The average mass flow rate of the process fluid through the vaporizer is unchanged regardless of pump discharge amount such that process fluid pressure downstream of the vaporizer is maintained.
27 Self Torrefied Pellet Stove US15041898 2016-02-11 US20160341423A1 2016-11-24 Geoffrey W.A. Johnson
A pellet stove, having a pellet hopper, a combustion chamber, a heat exchanger and a pellet movement assembly, adapted to move the pellets from the hopper into the combustion chamber. The pellet movement assembly is located and configured so as to be heated by exhaust gases from the combustion chamber and the pellets spend a sufficient amount of time in the pellet movement assembly, where oxygen is prevented from freely flowing in, so that the pellets are torrefied during transit to the combustion chamber.
28 COMBUSTION METHOD AND INSTALLATION WITH OPTIMIZED ENERGY RECUPERATION US15107538 2014-12-19 US20160320057A1 2016-11-03 Luc JARRY; Youssef JOUMANI
Combustion method and installation in which an oxygen-rich oxidant is preheated by exchange of heat with a heat-transfer fluid, upstream of the combustion chamber, in which method and installation an auxiliary gas is heated by heat exchange with a first proportion of the hot flue gases discharged from the chamber, and in which method and installation the heat-transfer fluid comprises a mixture of at least a proportion of the heated auxiliary gas with a proportion of hot flue gases.
29 Booster air heater for high moisture fuels US13923633 2013-06-21 US09482127B2 2016-11-01 Scott L. Darling; Edward S. Sadlon
A system and method for drying pulverized high moisture fuel for use in a selective catalytic reduction system equipped combustion system is provided. The combustion system includes a mill for pulverizing fuel, an air heater, a booster air heater and a fuel duct for feeding dried pulverized fuel to a combustion furnace.
30 METHOD FOR COMBUSTION OF A LOW-GRADE FUEL US14778743 2014-01-14 US20160047544A1 2016-02-18 Tomas Ekman
A method includes combustion products from combustion of fuel with oxidant brought first through a first heat exchanging step (150; 201), in which thermal energy is transferred from the combustion products to the fuel which is thereby preheated, and the cooled combustion products thereafter are brought through a second heat exchanging step (151; 203), in which thermal energy is transferred from the cooled combustion products to the oxidant which is thereby also preheated. A related system for preheating the fuel and oxidant is also provided.
31 TEMPERATURE CONTROL OF A FLUID DISCHARGED FROM A HEAT EXCHANGER US14777161 2014-03-11 US20160025042A1 2016-01-28 Gregory A. Batenburg; Jason J. Coatta
A reciprocating piston cryogenic pump has been suspended from stroking when process fluid discharge temperature from a vaporizer dropped below a threshold to prevent freezing of a heat exchange fluid circulating through the vaporizer and damage to downstream components. Suspension of the pump results in a decrease of process fluid pressure downstream of the vaporizer, which is undesirable. In the present technique, a temperature is monitored correlating to process fluid temperature downstream of the vaporizer. The amount of process fluid discharged from the pump in each cycle is adjusted as a function of the temperature such that the average residence time of the process fluid in the vaporizer is increased as the discharge amount decreases, increasing process fluid discharge temperature. The average mass flow rate of the process fluid through the vaporizer is unchanged regardless of pump discharge amount such that process fluid pressure downstream of the vaporizer is maintained.
32 ENERGY RECOVERY FROM FUMES FROM A MELTING FURNACE USING A GAS TURBINE AND HEAT EXCHANGERS US14654311 2013-12-05 US20150353406A1 2015-12-10 Benoit DAVIDIAN; Youssef JOUMANI; Jocelyn LE DIRACH; Jean-Pierre TRANIER
The invention relates to a unit and method for melting in a furnace comprising a combustion-heated melting chamber, in which the air is heated by means of heat exchange with the fumes generated by combustion. The heated air is used in a gas turbine in order to generate electrical and/or mechanical energy. In addition, the effluent from the gas turbine is used to pre-heat the combustion oxygen and/or gaseous fuel upstream of the melting chamber.
33 Method and apparatus for drying solid fuels US12471081 2009-05-22 US08590463B1 2013-11-26 Daniel Richard Higgins; Eugene Sullivan
A system for drying solid fuels prior to injection and burning in solid fuel boilers is described. High moisture content solid fuels such as bark, sludge, wet coal, are preferably dried to some degree before they can burn. The present invention incorporates a delivery chute in which combustion gases dry the solid fuel before it reaches the combustion chamber of the boiler. In one embodiment, the combustion gases are drawn through the delivery chute to remove moisture from the incoming fuel and then the gases flow back into the boiler. A second embodiment directly exposes the wet fuel to the combustion in the boiler for a sufficient time to remove a substantial amount of moisture before the fuel is spread onto the solid fuel combustion region.
34 LOW-RANK COAL PROCESSING APPARATUS AND METHOD US13989980 2011-11-25 US20130305972A1 2013-11-21 Chao Hui Chen; Michael John Smith
An apparatus for the simultaneous drying and transport of low-rank coal is described. The apparatus has a first pipe having an inner wall surface surroundingly defining a first flow channel and an outer wall surface; a low-rank coal supply system to supply particulate low-rank coal to an inlet of the first flow channel; a transport gas supply to supply transport gas to an inlet of the first flow channel; a heating apparatus to apply heat to an outer wall surface of the first pipe along at least part of the length thereof for example in the form of a drying fluid supply to supply a drying fluid, configured such that a drying fluid is brought into contact with the outer wall surface of the first pipe along at least part of the length thereof. A system of design of thermal power plant incorporating such an apparatus is also described. A method for the simultaneous drying and transport of low-rank coal is also described. A system and method for supplying dried low-rank coal for combustion are also described.
35 PROCESS FOR REDUCING COAL CONSUMPTION IN COAL FIRED POWER PLANT WITH FLUIDIZED-BED DRYING US13040016 2011-03-03 US20110220744A1 2011-09-15 Xu Zhao; Maikui Zhang; Yan Dou; Yongzhong Jiang; Jinwen Shi
The present invention relates to a process for reducing coal consumption in coal fired plant with fluidized-bed drying, namely a fluidized-bed drying system is provided between a coal powder bunker as well as a weighing belt and a coal grinding mill of the prior coal fired boiler generating set, and superheated steam which has done partial work is extracted from an steam turbine and used as a drying medium, moisture contained in the coal powder is evaporated with sensible heat and latent heat of the superheated steam, water resulted from the condensation of the superheated steam is fed into a deaerator of the steam turbine via a condensate pump for recirculation. The present invention has advantages of reducing coal consumption and saving coal, recovering residual heat, reducing emission of carbon dioxide and adopting to the national industrial policy on energy saving and emission reduction.
36 Device and method for feeding fuel US11411930 2006-04-27 US07824179B2 2010-11-02 Toshiaki Hasegawa; Susumu Mochida; Toshihumi Hoshino
The present invention provides a fuel feeding apparatus and method for improving the controllability of mixing process and mixing ratio of fuel and combustion air, and a combustion system and method for effecting new combustion properties. The fuel feeding apparatus of the combustion system has fuel feeding means, combustion gas extraction means, steam supply means, mixing means and fuel gas introduction means. The combustion gas extraction means extracts combustion gas of a combustion area therefrom. The mixing means mixes the fuel of fuel feeding means with at least one of combustion gas extracted from the furnace and steam of a steam generator. The fuel gas introduction means introduces a mixed fluid of combustion gas, steam and fuel to the combustion area as a fuel gas, and allows the fuel gas to be mixed with the combustion air. A step of mixing the fuel with the combustion gas after extracted from the furnace and a step of mixing the fuel gas with the combustion air are stepwisely carried out, so that the controllability of mixing process and ratio of the air and fuel is improved. Such a control of fuel gas flow enables control of characteristics of flame and production of flame with new properties in the combustion area.
37 Method and apparatus for controlling the combustion in a gas turbine US12116486 2008-05-07 US07730726B2 2010-06-08 Antonio Asti; Mariateresa Paci; Michele D'Ercole; Massimo Betti; Simone Bei; Giovanni Tonno; Jesse Stewart; Francesco Maria Orgero
A method and apparatus are described for controlling the combustion in a gas turbine. The method includes measuring, with one or two calorimeters, the temperature, calorific value and relative density of a gaseous fuel in order to determine the Wobbe index, comparing the Wobbe index value measured with a predefined Wobbe index value for the gaseous fuel and regulating the temperature of the gaseous fuel with at least one heat exchanger in order to reach the predefined Wobbe index value. The method may also include using a second gaseous fuel, having a different Wobbe index from the gaseous fuel, or a fuel obtained by mixing the gaseous fuel and the second gaseous fuel, according to arbitrary proportions and variable with time.
38 Low NOx pulverized solid fuel combustion process and apparatus US09591734 2000-06-12 US06244200B1 2001-06-12 Iosif K. Rabovitser; Richard Knight; Mark J. Khinkis; Hamid A. Abbasi; Stan Wohadlo
A method and apparatus for low-NOx combustion of a pulverized solid fuel in which combustion products from a partial oxidation combustor are mixed with a pulverized solid fuel, thereby preheating the pulverized solid fuel and resulting in devolatilization of at least a portion of the pulverized solid fuel. The preheated pulverized solid fuel and the devolatilization products are then burned in a burner firing directly into a combustion chamber.
39 Method and apparatus for reducing NO.sub.x emissions from a multiple-intertube pulverized-coal burner US358301 1999-07-21 US06155183A 2000-12-05 Scott A. Vierstra; John J. Letcavits
A method and apparatus retrofitted to a multiple-intertube pulverized-coal burner to reduce NO.sub.x emissions of roof fired boilers. An internal two stage process controls the amount of secondary air which flows to the burner. The first stage includes a secondary air damper and air flow station to regulate the amount of air which flows into a windbox of the burner. The second stage includes an outlet formed in the hot primary air duct, an air plenum which communicates therewith, and a plurality of interjectory air ports which correspond with the burners in number and position along a front wall of the boiler and which communicate with the air plenum. The interjectory air ports inject interjectory air into a combustion chamber of the boiler at a substantially 90 degree angle to the direction of a plurality of burner tips of each burner and supplies the balance of the required theoretical combustion air needed to complete combustion of the fuel. A plurality of probes measure the amount of primary air, secondary air and interjectory air and signal a command loop circuit to adjust the secondary air dampers and interjectory air ports accordingly. The burner tips extend into the central core of each windbox and mixes with the incoming secondary air to provide for the fuel rich mixture.
40 Method and apparatus for reducing NO.sub.X emmissions from a multiple-intertube pulverized-coal burner US15836 1998-01-29 US5960723A 1999-10-05 Scott A. Vierstra; John J. Letcavits
A method and apparatus retrofitted to a multiple-intertube pulverized-coal burner to reduce NO.sub.x emissions of roof fired boilers. An internal two stage process controls the amount of secondary air which flows to the burner. The first stage includes a secondary air damper and air flow station to regulate the amount of air which flows into a windbox of the burner. A baffle plate assembly which includes a plurality of baffle plates further limits the amount of air which flows to the core of the burner for combustion of the fuel. The baffle plates create a pressure drop within the windbox which forces or diverts a quantity of air to the periphery of the burner. The second stage includes an outlet formed in the hot primary air duct, an air plenum which communicates therewith, and a plurality of interjectory air ports which correspond with the burners in number and position along a front wall of the boiler and which communicate with the air plenum. The interjectory air ports inject interjectory air into a combustion chamber of the boiler at a substantially 90 degree angle to the direction of a plurality of burner tips of each burner and supplies the balance of the required theoretical combustion air needed to complete combustion of the fuel. A plurality of probes measure the amount of primary air, secondary air and interjectory air and signal a command loop circuit to adjust the secondary air dampers and interjectory air ports accordingly.
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