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公开(公告)号：US10107144B2
公开(公告)日：2018-10-23
申请号：US15198302
申请日：2016-06-30
发明人： Hidefumi Araki , Kazuhiko Sato , Yasushi Iwai
IPC分类号： F02C3/30 , F02C6/18 , F01K23/10 , F01K21/04 , C02F1/00 , C02F1/20 , C02F1/42 , C02F1/44 , C02F1/66 , C02F9/00 , F01K11/02 , C02F103/34
摘要： A thermal power plant for recovering water from exhaust gas includes a gas turbine, a heat recovery steam generator for generating steam by supplying exhaust combustion gas exhausted from the gas turbine as heat source, a water recovery system installed on the downstream side of the heat recovery steam generator, a recovered water system for supplying a part of the water recovered by the water recovery system, allowing the water to be circulating as circulating water, a feed water system for supplying the heat recovery steam generator with other part of the water recovered by the water recovery system as feed water, pH adjusting systems, and a control system for controlling the volumes of pH adjusters supplied from the first and second pH adjusting systems.
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公开(公告)号：US09988944B2
公开(公告)日：2018-06-05
申请号：US14874960
申请日：2015-10-05
申请人： Weizhong Feng
发明人： Weizhong Feng
CPC分类号： F01K7/22 , F01D15/10 , F01K11/02 , F22G1/02 , Y02P80/154
摘要： The present invention provides a novel turbo-generator unit, which at least comprises a boiler and a superheater and a reheater provided in the boiler. On the boiler, the positions corresponding to the header of the steam inlets and outlets of the superheater and reheater form the header-connection area; the steam pipe system at least comprises the pipes that connect the boiler with the HP cylinder and the IP cylinder and are used to transmit the HTHP steam; the HP cylinder and the generator constitute the high-level shafting, and the high-level shafting is positioned outside of boiler and close to the header-connection area. The present invention can also comprise a low-level shafting positioned at a low level. Since the high-level shafting and the low-level shafting are arranged at different levels, the lengths of costly HTHP steam pipes in the pipe system and the pressure drop and heat radiation loss of the pipe system are significantly reduced, and the work capability of the unit is improved. Furthermore, the quantity of the steam stored in the reheat system and the adjustment inertia of unit is reduced, and the economical efficiency of the double-reheat unit is sufficiently realized.
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公开(公告)号：US20180119618A1
公开(公告)日：2018-05-03
申请号：US15340516
申请日：2016-11-01
摘要： A fuel heating system for a gas turbine system is provided. The system includes a boiler for generating steam, a HRSG independent of the boiler, and a single fuel heat exchanger structured to operate using steam or water as the heating medium. A control valve system selectively delivers the heating medium to the second passage of the single fuel heat exchanger as one of: the steam from the boiler and the hot feedwater from the HRSG.
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44.发明申请公开(公告)号：US20180003085A1
公开(公告)日：2018-01-04
申请号：US15547280
申请日：2015-02-06
发明人： Hideyuki UECHI , Hideaki SUGISHITA , Yuichi OKA
摘要： A boiler includes one or more evaporators configured to heat water which has flowed therein to a specific heat maximum temperature at constant pressure or more in which a specific heat at constant pressure is maximized using a heated fluid and one or more reheaters configured to heat the steam which has come from the boiler using the heated fluid. All the reheaters configured to supply steam to a low-pressure steam turbine are disposed only at a downstream side of the high-pressure evaporator. All the reheaters heat reheating steam (FRHS) containing steam which has passed through a high-pressure steam turbine configured to receive steam supplied from the high-pressure evaporator and having a temperature lower than a specific heat maximum temperature at constant pressure in the high-pressure evaporator to less than the specific heat maximum temperature at constant pressure.
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公开(公告)号：US09828883B2
公开(公告)日：2017-11-28
申请号：US13994902
申请日：2011-12-21
CPC分类号： F01K13/02 , F01D17/08 , F01K11/02 , F01K13/003 , F01K25/10 , F05D2220/31 , F05D2220/72
摘要： The present invention provides a method for open-loop controlling or closed-loop controlling and/or monitoring a device with an expansion engine which is supplied live steam of a working medium that is expanded to exhaust steam in the expansion engine comprising the steps: determining at least one physical parameter of the exhaust steam; determining at least one physical parameter of the live steam based on the determined at least one physical parameter of the exhaust steam; and open-loop controlling or closed-loop controlling and/or monitoring the device based on the at least one determined physical parameter of the live steam. A thermal power plant is also provided in which the method is realized.
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46.发明申请公开(公告)号：US20170314420A1
公开(公告)日：2017-11-02
申请号：US15523441
申请日：2015-10-28
CPC分类号： F01K13/02 , F01K7/16 , F01K11/02 , F01K25/02 , F01K25/103 , F04D15/0011 , F04D15/0072 , F05D2260/85
摘要： Aspects of the invention generally provide a heat engine system and a method for activating a turbopump within the heat engine system during a start-up process. The heat engine system utilizes a working fluid circulated within a working fluid circuit for capturing thermal energy. In one exemplary aspect, a start-up process for a turbopump in the heat engine system is provided such that the turbopump achieves self-sustained operation in a supercritical Rankine cycle. Bypass and check valves of a start pump and the turbopump, a drive turbine throttle valve, and other valves, lines, or pumps within the working fluid circuit are controlled during the turbopump start-up process. A process control system may utilize advanced control techniques of the control sequence to provide a successful start-up process of the turbopump without over pressurizing the working fluid circuit or damaging the turbopump via low bearing pressure.
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公开(公告)号：US20170248036A1
公开(公告)日：2017-08-31
申请号：US15056409
申请日：2016-02-29
发明人： Daniel Joseph Flavin, II , Steven William Backman , Scott Michael Schaberg , Trevor Valder Jones
CPC分类号： F01K11/02 , F01K13/003 , F01K13/02 , F01K23/101 , Y02E20/16
摘要： A system may include a gas turbine system. The gas turbine system may include a compressor, such that the gas turbine system may produce exhaust gas in an exhaust outlet when generating electricity. The system may also include a heat recovery steam generator (HRSG) that may use the exhaust gas to create steam, a manifold system configured to couple compressed air in the compressor to the exhaust outlet, and a controller configured to send a command to the manifold system to couple the compressed air to the exhaust outlet when a temperature of the exhaust gas is above a threshold.
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公开(公告)号：US09726048B2
公开(公告)日：2017-08-08
申请号：US14777589
申请日：2014-03-18
发明人： Jiro Kasahara , Issaku Fujita
摘要： A steam turbine plant is provided with: a plurality of steam turbines; a multistage pressure condenser composed of a plurality of condensers which are respectively provided below the respective steam turbines so as to correspond to the plurality of steam turbines, and in which steam which is discharged from the respective steam turbines is condensed and accommodated as condensate; and a steam extraction section which introduces some of the steam in the steam turbine into condensate of the condenser corresponding to the lowest-pressure steam turbine among the plurality of condensers.
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公开(公告)号：US09702272B2
公开(公告)日：2017-07-11
申请号：US14453160
申请日：2014-08-06
CPC分类号： F01K27/02 , F01K9/003 , F01K11/02 , F01K23/065 , F01N5/02 , F01N2240/02 , F02G5/02 , Y02T10/16 , Y02T10/166
摘要： A Rankine cycle waste heat recovery system uses a receiver with a maximum liquid working fluid level lower than the minimum liquid working fluid level of a sub-cooler of the waste heat recovery system. The receiver may have a position that is physically lower than the sub-cooler's position. A valve controls transfer of fluid between several of the components in the waste heat recovery system, especially from the receiver to the sub-cooler. The system may also have an associated control module.
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公开(公告)号：US20170159501A1
公开(公告)日：2017-06-08
申请号：US15330922
申请日：2016-11-17
CPC分类号： F01K3/22 , B60K3/00 , B60K3/02 , B60K3/04 , B60L11/04 , B60L11/12 , B60L11/1805 , B63H21/04 , B63H21/10 , F01K7/025 , F01K7/12 , F01K9/003 , F01K11/02 , F01K13/02 , F01K15/02 , F01K21/045 , F01K25/005 , F01K25/06 , F01K25/08 , F16T1/02 , H02K7/1823
摘要： A method and system using at least two different working fluids to be supplied to an expander to cause it to do mechanical work. The expander is started by providing a compressed gaseous working fluid at a sufficient pressure to the expander. At the same time the compressed gaseous working fluid is provided to the expander, a second working fluid that is liquid at ambient temperatures is provided to a heater to be heated. The second working fluid is heated to its boiling point and converted to pressurized gas Once the pressure is increased to a sufficient level, the second working fluid is injected into the expander to generate power, and the supply of the first working fluid may be stopped. After expansion in the expander, the working fluids are is exhausted from the expander, and the second working fluid may be condensed for separation from the first working fluid. Control circuitry controls the admission of the first and second working fluids responsive to monitoring the load on the expander.Waste heat in the exhaust from the expander can be used to heat or alternatively to dry an element in a device that can be operated as a desiccator to dry air when operated in a summer mode, or to heat air when operated in a winter mode. The air having been dried or alternatively heated is then ducted to an evaporative cooler which cools the dried air in summer mode and humidifies the heated air in winter mode.
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