序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
81 TEMPERATURE CONTROL OF A FLUID DISCHARGED FROM A HEAT EXCHANGER EP14764020 2014-03-11 EP2971741A4 2016-11-02 BATENBURG GREGORY A; COATTA JASON J
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.
82 RECUPERATION ENERGETIQUE DES FUMEES D'UN FOUR DE FUSION AU MOYEN D'UNE TURBINE A GAZ ET DES ÉCHANGEURS DE CHALEUR EP13815060.2 2013-12-05 EP2935133A1 2015-10-28 DAVIDIAN, Benoit; JOUMANI, Youssef; LE DIRACH, Jocelyn; TRANIER, Jean-Pierre
The invention relates to a unit and method for melting in a furnace (10) 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 (41, 42) 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.
83 RECUPERATION ENERGETIQUE DES FUMEES D'UN FOUR DE FUSION AVEC UNE TURBINE À GAZ ET DES ÉCHANGEURS DE CHALEUR EP13815058.6 2013-12-05 EP2935132A1 2015-10-28 DAVIDIAN, Benoit; JOUMANI, Youssef; LE DIRACH, Jocelyn; TRANIER, Jean-Pierre
The invention relates to a melting unit and method in which: a melting chamber (100) is heated by means of combustion, the combustion fumes (20) are used to heat the air (30) used as a heat-transfer gas, the heated air (31) is used to pre-heat (130) the combustion oxygen (40) and/or the gaseous fuel (50), the tempered air (31) resulting from the pre-heating is compressed, the compressed tempered air (33) is heated (150) by means of heat exchange with the combustion fumes (20), and the mechanical and/or electrical energy is generated by expansion of the heated compressed air (34).
84 FUEL PREPARATION APPARATUS AND METHOD EP13783977.5 2013-10-18 EP2909534A1 2015-08-26 KUCZYNSKI, Konrad Jerzy; KUCZYNSKA, Agnieszka Magdalena
An apparatus and method for fuel preparation for example by milling and drying to produce a pulverous fuel supply are described. The apparatus includes a fuel preparation unit adapted to receive a mixture of fuel and a gas and to prepare the fuel for combustion in a pulverous state; an output conduit defining an output flow path for a mixture of pulverous fuel and gas from the fuel preparation unit; a phase separator disposed to receive the mixture from the output conduit and to separate the mixture into a gas phase comprising at least a major part of the gas from the mixture and a fuel phase comprising the pulverous fuel; a gas phase conduit defining a flow path for the gas phase from the separator; a heat exchanger preferably being a process fluid heat exchanger such as a feed water heat recovery heat exchanger fluidly connected to the gas phase conduit and adapted to receive and dry the gas phase. The method applies the principles embodied in the apparatus.
85 Method for combustion of a low-grade fuel EP13001643.9 2013-03-28 EP2784388B1 2015-03-04 Ekman, Tomas
86 Kleinfeuerungsanlage, Verfahren zu deren Betrieb und Brennstoff hierzu EP14401073.3 2014-06-25 EP2823873A1 2015-01-14 Gehrmann, Hans-Joachim; Seifert, Helmut; Seufert, Tobias

Die Erfindung betrifft eine Kleinfeuerungsanlage (1), einen Brennstoff (11) und ein Verfahren zur Verbrennung von Brennstoffen (11) in einer Kleinfeuerungsanlage (1) mit einer Abgasreinigungseinrichtung (9). Um beispielsweise gasförmige Schadstoffe wie Dioxine, Furane und dergleichen effektiv aus den Abgasen zu entfernen, werden bei der Verbrennung entstehende Abgase mittels einer Kühleinrichtung (8) auf eine vorgegebene Temperatur gekühlt und in einem Gegenstromprinzip an vereinzelten, kontinuierlich und zwangsweise durch ein Abgasrohr (5) geführten und anteilig mit einem verbrennbaren Adsorbens versetzten Pellets (12) aus Brennstoff in Kontakt gebracht und die Pellets (12) nach einer vorgegebenen Verweilzeit in dem Abgasrohr (5) in einen Brennraum (3) der Kleinfeuerungsanlage (1) verbracht und in dem Brennraum (3) verbrannt.

87 DEVICE AND METHOD FOR FEEDING FUEL EP00952004.0 2000-08-15 EP1217299B1 2011-11-16 HOSHINO, Toshihumi; HASEGAWA, Toshiaki; MOCHIDA, Susumu; HOSHINO, Kiyoko
A device and a method for feeding fuel capable of improving a fuel/combustion air mixing process and a controllability of mixing ratio, and also a device and a method for combustion capable of developing noble combustion characteristics. The fuel feed device of the combustion device comprises fuel feed means, a combustion gas lead-out device, a steam feed device, a mixing device, and a fuel gas lead-in device, wherein the combustion gas lead-out device leads out combustion gas generated in a combustion area from the combustion area to the outside of a furnace, the mixing device mixes at least one of the combustion gas led to the outside of the furnace and steam from the steam feed device with fuel from the fuel feed means, and the fuel gas lead-in device leads a mixed fluid of combustion gas, steam, and fuel, as a fuel gas, into the combustion area and mixes the fuel gas flow with combustion air, whereby, a process where fuel is mixed with air after the combustion gas is led out of the furnace and a process where the fuel gas flow is mixed further with combustion air are executed stepwise so as to improve the mixing process of fuel and combustion air and increase the controllability of the mixing ratio and, in addition, flame characteristics are controlled by such a fuel gas flow control so that a flame having novel characteristics can be formed in the combustion area.
88 METHOD OF ENHANCING THE QUALITY OF HIGH-MOISTURE MATERIALS USING SYSTEM HEAT SOURCES EP05815042 2005-10-11 EP1805283A4 2010-04-14 BULLINGER CHARLES W; NESS MARK A; SARUNAC NENAD; LEVY EDWARD K; WEINSTEIN RICHARD S; JAMES DENNIS R
89 METHOD OF ENHANCING THE QUALITY OF HIGH-MOISTURE MATERIALS USING SYSTEM HEAT SOURCES EP05815042.6 2005-10-11 EP1805283A2 2007-07-11 BULLINGER, Charles, W.; NESS, Mark, A.; SARUNAC, Nenad; LEVY, Edward, K.; WEINSTEIN, Richard, S.; JAMES, Dennis, R.
The present invention harvests and utilizes fluidized bed drying technology and waste heat streams augmented by other available heat sources to dry feedstock or fuel. This method is useful in many industries, including coal-fired power plants. Coal is dried using the present invention before it goes to coal pulverizers and on to the furnace/boiler arrangement. Coal can be intercepted on current coal feed systems ahead of the pulverizers. Drying fuel, such as coal, is done to improve boiler efficiency and reduce emissions. A two-stage bed utilized in the process first 'pre-dries and separates' the feed stream into desirable and undesirable feedstock. Then, it incrementally dries and segregates fluidizable and non-fluidizable material from the product stream. This is all completed in a low-temperature, open-air system. Elevation of fan room air temperature is also accomplished using waste heat, thereby making available to the plant system higher temperature media to enhance the feedstock drying process.
90 Arrangement for converting a conventional oil boiler to a boiler with moist, granular and solid fuel EP98660089.8 1998-09-08 EP0902235A2 1999-03-17 Oksanen, Mauno; Miettinen, Markku; Pyykkönen, Markku; Pajunen, Kari

The invention relates to an arrangement for converting a conventional oil boiler (1) to a boiler with moist, granular and solid fuel, in which arrangement a fuel combustion gas dryer (3, 4) is used, connected to the combustion gas line (6, 7) of the boiler, and a solid fuel combustion device (2) to replace the oil burner. The combustion gas dryer (3, 4) is a so-called circulating fluidized bed (CFB) dryer (4) together with a particle separator (3) and a combustion gas centre tap (6.2) has been fitted into the oil boiler, through which centre tap hot combustion gas has been set to be mixed with combustion gases of the normal outlet (6.1) in the desired proportion in order to regulate the temperature of the drying gas of the dryer (4). When most advantageous, the combustion devices (2) include a cyclone burner (2), known in itself.

91 METHOD FOR OPERATING A STEAM GENERATOR PCT/EP2013071139 2013-10-10 WO2014057025A3 2015-01-22 HESSE RAINER; RÖPER BERNHARD
The invention relates to a method for operating a steam generator having a boiler (1) fired with brown coal, having at least one first mill for grinding the brown coal. The method comprises milling pit-moist raw brown coal (7) in the first mill, branching off a drying flue gas stream (9) from the boiler (1), drying the raw brown coal (7) in the first mill in direct contact with the drying flue gas stream (9), blowing a flue gas/brown coal stream from the first mill into the boiler, and drying a subquantity of raw brown coal in a separate drying unit to give dry brown coal (8), and feeding the dry brown coal (8) from the separate drying unit into a flue gas brown coal stream (10) upstream of a burner allocation, or into the burner allocation.
92 LOW-RANK COAL PROCESSING APPARATUS AND METHOD PCT/GB2011052319 2011-11-25 WO2012069844A2 2012-05-31 CHEN CHAO HUI; SMITH MICHAEL JOHN
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.
93 FUEL PREPARATION APPARATUS AND METHOD EP13783977.5 2013-10-18 EP2909534B1 2018-04-25 KUCZYNSKI, Konrad Jerzy; KUCZYNSKA, Agnieszka Magdalena
An apparatus and method for fuel preparation for example by milling and drying to produce a pulverous fuel supply are described. The apparatus includes a fuel preparation unit adapted to receive a mixture of fuel and a gas and to prepare the fuel for combustion in a pulverous state; an output conduit defining an output flow path for a mixture of pulverous fuel and gas from the fuel preparation unit; a phase separator disposed to receive the mixture from the output conduit and to separate the mixture into a gas phase comprising at least a major part of the gas from the mixture and a fuel phase comprising the pulverous fuel; a gas phase conduit defining a flow path for the gas phase from the separator; a heat exchanger preferably being a process fluid heat exchanger such as a feed water heat recovery heat exchanger fluidly connected to the gas phase conduit and adapted to receive and dry the gas phase. The method applies the principles embodied in the apparatus.
94 LIGNITE DRYING WITH CLOSED LOOP HEAT PUMP EP16169541.6 2016-05-13 EP3098550B1 2018-03-28 EDEL, Thomas; GEIGER, Frederic; POURCHOT, Thierry; WANTZ, Didier
The invention relates to a dryer system for drying lignite coal used in a power plant. The system comprises a dryer and a closed loop heat pump circuit that is configured and arranged to provide heat energy to the dryer (10). The closed loop heat pump circuit includes a working fluid, a dryer heat exchanger (13), an expansion device (17) fluidly connected and downstream of the dryer heat exchanger (13), arranged to enable heat energy transfer from the vapour of the second outlet line (16) to the first working fluid and a compressor (21) for compressing the working fluid.
95 COMBUSTION METHODS FOR LOW VELOCITY FUEL STREAM EP16723560.5 2016-04-14 EP3283823A1 2018-02-21 FRANCIS, Arthur, W., Jr.; KOBAYASHI, Hisashi; WU, Kuang-Tsai
A combustion method in which heated flue gas heats a regenerator through which a mixture of fuel and flue gas is then passed to undergo endothermic reactions that produce syngas which is fed into a furnace together with a motive gas stream.
96 RECUPERATION ENERGETIQUE DES FUMEES D'UN FOUR DE FUSION AVEC UNE TURBINE À GAZ ET DES ÉCHANGEURS DE CHALEUR EP13815058.6 2013-12-05 EP2935132B1 2017-03-01 DAVIDIAN, Benoit; JOUMANI, Youssef; LE DIRACH, Jocelyn; TRANIER, Jean-Pierre
97 PROCÉDÉ ET INSTALLATION DE COMBUSTION AVEC RÉCUPÉRATION D'ÉNERGIE OPTIMISÉE EP14835480.6 2014-12-19 EP3087040A1 2016-11-02 JARRY, Luc; JOUMANI, Youssef; LEROUX, Bertrand; TSIAVA, Rémi
Combustion method and installation in which an oxygen-rich oxidant (43) is preheated by exchange of heat with a heat-transfer fluid (23), upstream of the combustion chamber (100), in which method and installation an auxiliary gas (21) is heated by heat exchange with a first proportion of the hot flue gases (11) discharged from the chamber (100), and in which method and installation the heat-transfer fluid (23) comprises a mixture of at least a proportion of the heated auxiliary gas (22) with a proportion of hot flue gases (13).
98 SYSTEM FOR DRYING COAL USING SUPERHEATED STEAM EP12856662.7 2012-04-10 EP2791604A1 2014-10-22 KIM, Sung Kon
The present disclosure relates to a coal drying system for removing water contained in coal used as a fuel of a thermoelectric power plant with superheated steam. The system prevents the incomplete combustion of the coal by removing water existing inside and outside the coal fuel of the thermoelectric power plane, thereby improving a heating value of coal and minimizing the discharge of pollutants, prevents the corrosion of the system and improves the durability, and increases the use of low-quality coal of which the demand is low, thereby improving the stable supply of the coal.
99 Booster air heater for high moisture fuels EP13183522.5 2013-09-09 EP2706299A1 2014-03-12 Darling, Scott L; Sadlon, Edward S

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.

100 LOW-RANK COAL PROCESSING APPARATUS AND METHOD EP11805913.8 2011-11-25 EP2643636A2 2013-10-02 CHEN, Chao Hui; SMITH, Michael John
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.
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