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公开(公告)号：US20240200472A1
公开(公告)日：2024-06-20
申请号：US18286126
申请日：2022-04-08
发明人： Uwe Juretzek , Carsten Graeber
CPC分类号： F01K23/101 , F01B23/10 , F22G1/165 , F05D2220/74 , F22B1/003 , F22D1/003 , F22G5/16
摘要： A device and method for generating electrical energy from hydrogen and oxygen, includes a combustion engine, a heat recovery steam generator connected into the exhaust gas duct of the combustion engine, wherein the heat recovery steam generator has only one pressure stage. An H2—O2 reactor is provided to which steam from the heat recovery steam generator, water, oxygen and hydrogen are fed, such that, in the H2—O2 reactor, a reaction of oxygen and hydrogen forms steam, the water that is introduced is evaporated, additional steam is generated, the resultant superheated steam is fed to a steam turbine, and a generator connected to the steam turbine provides an electric power. High-pressure feed water is injected from the heat recovery steam generator into the H2—O2 reactor via a line to control the reaction in the H2—O2 reactor in a targeted manner and set the steam exit temperature from the H2—O2 reactor.
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公开(公告)号：US20210190309A1
公开(公告)日：2021-06-24
申请号：US16077975
申请日：2017-02-28
申请人： XDI Holdings, LLC
IPC分类号： F22B1/12 , F22B1/22 , F22B1/18 , F22D11/00 , F22G1/00 , F22B1/16 , F22D1/00 , E21B43/24 , E21B43/16
摘要： Embodiments of the present disclosure include a system, method, and apparatus comprising a direct steam generator configured to generate saturated steam and combustion exhaust constituents.
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公开(公告)号：US10982567B2
公开(公告)日：2021-04-20
申请号：US16710879
申请日：2019-12-11
发明人： Hiroshi Fukunaga , Supriyo Datta
摘要： A condensate and feedwater system includes: a deaerator circulation pump that returns condensate water flowing out from a deaerator to a part of a condensate line between a heater and the deaerator; an apparatus to be supplied with part of the condensate water flowing from the heater toward the deaerator, through a supply line branched from the condensate line; a supply line shutoff valve that switches between communication and interruption of the supply line; and a controller that controls opening/closing of the supply line shutoff valve and driving/stopping of the deaerator circulation pump. The controller closes the supply line shutoff valve from an open state at normal operation and at least temporarily drives the deaerator circulation pump from a stopped state at normal operation, in condenser throttling in which supply of extraction steam of a steam turbine to the heater and the deaerator is reduced as compared to that at normal operation and a deaerator water level control valve is closed.
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公开(公告)号：US10788204B2
公开(公告)日：2020-09-29
申请号：US16051431
申请日：2018-07-31
申请人： Xuedong Gu , MingWei Tong
发明人： Xuedong Gu , MingWei Tong
摘要： An injection feedwater heater for a steam power generating system includes at least one main heater body and at least one injection nozzle. The main heater body has at least one heat exchange compartment, at least one water inlet, at least one steam inlet, and at least one water outlet formed on the main heater body. The injection nozzle is provided in the main heater body at a position adjacent to the water inlet, wherein a predetermined amount of condensate water is arranged to be pumped into the main heater body through the water inlet. The condensate water passing through the water inlet is arranged to be injected into the heat exchange compartment through the injection nozzle for creating a negative pressure in the heat exchange compartment. The negative pressure drawing a predetermined amount of steam to enter the heat exchange compartment for mixing with the condensate water.
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5.发明申请公开(公告)号：US20200271019A1
公开(公告)日：2020-08-27
申请号：US16710879
申请日：2019-12-11
发明人： Hiroshi FUKUNAGA , Supriyo DATTA
摘要： A condensate and feedwater system includes: a deaerator circulation pump that returns condensate water flowing out from a deaerator to a part of a condensate line between a heater and the deaerator; an apparatus to be supplied with part of the condensate water flowing from the heater toward the deaerator, through a supply line branched from the condensate line; a supply line shutoff valve that switches between communication and interruption of the supply line; and a controller that controls opening/closing of the supply line shutoff valve and driving/stopping of the deaerator circulation pump. The controller closes the supply line shutoff valve from an open state at normal operation and at least temporarily drives the deaerator circulation pump from a stopped state at normal operation, in condenser throttling in which supply of extraction steam of a steam turbine to the heater and the deaerator is reduced as compared to that at normal operation and a deaerator water level control valve is closed.
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公开(公告)号：US20190383177A1
公开(公告)日：2019-12-19
申请号：US16464696
申请日：2017-11-15
摘要： A thermal energy recovery device includes a circulation flow path for circulating a working fluid, a thermal fluid circulation flow path for circulating hot water, an evaporator for evaporating the working fluid flowing in the circulation flow path by heat of the hot water flowing in the thermal fluid circulation flow path, a preheater for heating the working fluid before flowing into the evaporator by the heat of the hot water flowing in the thermal fluid circulation flow path, and a control unit for controlling a startup operation of the thermal energy recovery device. The control unit executes a suppression control for suppressing a temperature difference between the hot water and the working fluid in the preheater.
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公开(公告)号：US10378763B2
公开(公告)日：2019-08-13
申请号：US14957738
申请日：2015-12-03
发明人： Surinder Prabhjot Singh , Dan Hancu , Benjamin Rue Wood , Wei Chen , Dwayne David McDuffie , Mark David Kehmna , Irina Pavlovna Spiry
摘要： A power generation system includes a power generation plant portion including a feedwater heating system configured to channel a feedwater stream and a carbon dioxide capture portion coupled in flow communication with the power generation plant portion. The carbon dioxide capture portion includes a solvent circuit configured to channel a solvent stream through at least a portion of the carbon dioxide capture portion. The carbon dioxide capture portion also includes a heat recovery system coupled in flow communication with the solvent circuit and the feedwater heating system. The heat recovery system is configured to transfer heat energy from the solvent stream to the feedwater stream and to channel the heated feedwater from the heat recovery system to the feedwater heating system.
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公开(公告)号：US10180086B2
公开(公告)日：2019-01-15
申请号：US15025186
申请日：2014-09-23
申请人： NOOTER/ERIKSEN, INC.
发明人： Daniel B. Kloeckener
IPC分类号： F22B37/02 , F01K23/10 , F22D1/02 , F22B1/18 , F22B21/00 , F22D1/16 , F22D1/00 , F01K7/16 , F01K13/00
摘要： Heat recovery steam generator comprises a casing, low-pressure evaporator coils, preheater booster coils upstream thereof and feedwater heater coils downstream thereof, a water-to-water heat exchanger having low and high temperature paths; a first conduit from the preheater to the high-temperature path, and a second conduit from the feedwater heater to the preheater. A conduit can extend from feedwater heater to low-pressure evaporator. A conduit can extend from the water-to-water heat exchanger to the feedwater heater. High-pressure economizer coils can be upstream of the preheater, with a conduit exiting the feedwater heater to the high-pressure economizer. Additional coils can be upstream of the high-pressure economizer. The feedwater heater can comprise first and second sections, or first, second and third sections; or more sections. The connections among the various components and sections can be near their upstream and downstream faces.
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公开(公告)号：US20170122552A1
公开(公告)日：2017-05-04
申请号：US15341076
申请日：2016-11-02
发明人： Jingwei ZHANG , Scott Macadam
CPC分类号： F22D1/003 , E21B43/2406 , F22D11/02
摘要： Methods and systems generate steam for injection in a well to facilitate oil recovery. Water is preheated at a central processing facility, transported to a well pad by hot water lines, and converted to steam by a steam generator at the well pad.
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公开(公告)号：US09638064B2
公开(公告)日：2017-05-02
申请号：US14385993
申请日：2013-03-19
申请人： STAMICARBON B.V. , Enea, Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile
发明人： Gaetano Iaquaniello , Daniela Capoferri , Adriano Barsi , Fabrizio Fabrizi , Walter Gaggioli , Alberto Giaconia , Luca Rinaldi
IPC分类号： F01K3/24 , F03G6/06 , F03G6/00 , F22G5/04 , F22B35/00 , F01K3/22 , F01K3/20 , F22B1/00 , F22B1/02 , F22D1/00
CPC分类号： F01K3/24 , F01K3/20 , F01K3/205 , F01K3/22 , F03G6/003 , F03G6/005 , F03G6/065 , F03G6/067 , F22B1/006 , F22B1/028 , F22B35/001 , F22D1/003 , F22G5/04 , Y02E10/46
摘要： A back-up boiler system for a solar thermal power plant (201) for transferring solar energy into electricity, said back-up boiler system comprising a combustion chamber (70) and a convection section (80) in fluid connection with said combustion chamber (70), wherein in the convection section (80) at least a first heat exchanger (92) is provided for heating a molten salts mixture of the solar thermal power plant and a second heat exchanger (90) for pre-heating boiler feed water of the solar thermal power plant, wherein the back-up boiler system (25) is configured to allow selection between only providing heat to the first heat exchanger (92), only providing heat to the second heat exchanger (90) and providing heat to both heat exchangers (90, 92), preferably dependent on availability of solar radiation and/or dependent on demand of power generation. The invention also relates to a solar thermal power plant (201) for transferring solar energy into electricity and a method for operating a solar thermal power plant.
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