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公开(公告)号：US20180238211A1
公开(公告)日：2018-08-23
申请号：US15437703
申请日：2017-02-21
CPC分类号： F01N3/0211 , F01D25/30 , F01K7/18 , F01K23/103 , F01K23/106 , F01N3/035 , F01N3/2066 , F01N5/02 , F01N2250/02 , F01N2290/00 , F01N2410/00 , F01N2610/02 , F02C6/18 , Y02E20/16
摘要： Embodiments of emission reduction system including various embodiments of an emission filters for a power plant including a gas turbine are disclosed. The system includes: an emission filter; and a retraction system operably coupled to an exhaust passage of the gas turbine. The exhaust passage defines an exhaust path of exhaust from the gas turbine. The retraction system selectively moves the emission filter between a first location within the exhaust path and a second location out of the exhaust path. In a combined cycle power plant, the first location is upstream of a heat recovery steam generator (HRSG). The systems and filters described allow for temporary positioning of emission filter(s) just downstream of a gas turbine exhaust outlet, or upstream of an HRSG, where provided, for emission reduction at low loads or startup conditions, and removal of the emission filter(s) once operations move to higher loads.
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公开(公告)号：US20180179915A1
公开(公告)日：2018-06-28
申请号：US15392703
申请日：2016-12-28
发明人： Julia Maria Kirchner , Theres Cuche , Kevin Morris
CPC分类号： F01K3/185 , F01K1/18 , F01K3/008 , F01K3/04 , F01K3/267 , F01K7/02 , F01K7/16 , F01K7/18 , F01K7/20 , F01K7/26 , F01K7/28 , F01K11/02 , F01K23/06 , F01K23/10 , Y02E20/16
摘要： A steam turbine system including a steam source for generating a steam flow, a high pressure turbine providing a first steam exhaust, a low pressure turbine fluidly coupled to the high pressure turbine, and, a steam storage system having an inlet for receiving a portion of the first steam exhaust from the high pressure steam turbine and storing in the steam storage system, the steam storage system having an output with a pressure relief valve for discharging a second steam exhaust to the low pressure turbine.
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公开(公告)号：US20180171831A1
公开(公告)日：2018-06-21
申请号：US15898648
申请日：2018-02-18
申请人： David C. Williams , Hank Leibowitz , Hans Wain
发明人： David C. Williams , Hank Leibowitz , Hans Wain
CPC分类号： F01K25/08 , F01K7/16 , F01K7/18 , F01K7/20 , F01K13/006 , F01K23/00 , F01K23/065
摘要： Systems and methods are provided for the recovery mechanical power from heat energy sources using a common working fluid comprising, in some embodiments, an organic refrigerant flowing through multiple heat exchangers and expanders. The distribution of heat energy from the source may be portioned, distributed, and communicated to each of the heat exchangers so as to permit utilization of up to all available heat energy. In some embodiments, the system utilizes up to and including all of the available heat energy from the source. The expanders may be operatively coupled to one or more generators that convert the mechanical energy of the expansion process into electrical energy, or the mechanical energy may be communicated to other devices to perform work.
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公开(公告)号：US20180051596A1
公开(公告)日：2018-02-22
申请号：US15549555
申请日：2016-01-25
CPC分类号： F01K23/106 , F01K3/26 , F01K7/18 , F01K7/22 , F01K7/32 , F01K23/10 , F01K23/101 , Y02E20/16
摘要： A combine cycle power plant is presented. The combine cycle power plant includes a gas turbine, a heat recovery steam generator, a main steam turbine and a supercritical steam turbine. The supercritical steam turbine may be operated as a separate steam turbine that may be not a single steam turboset with the main steam turbine. The supercritical steam turbine receives supercritical steam generated in the heat recovery steam generator to produce power output. Exiting steam from the supercritical steam turbine may be routed to the main steam turbine. The supercritical steam turbine may be operated at a rotational speed that is higher than a grid frequency. The rotational speed of the supercritical steam turbine may be reduced to the grid frequency via a gearbox.
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公开(公告)号：US09896974B2
公开(公告)日：2018-02-20
申请号：US14816046
申请日：2015-08-02
申请人： ElectraTherm, Inc.
发明人： Hank Leibowitz , Hans Wain , David Williams
CPC分类号： F01K25/08 , F01K7/16 , F01K7/18 , F01K7/20 , F01K13/006 , F01K23/00 , F01K23/065
摘要： Systems and methods are provided for the recovery mechanical power from heat energy sources using a common working fluid comprising, in some embodiments, an organic refrigerant flowing through multiple heat exchangers and expanders. The distribution of heat energy from the source may be portioned, distributed, and communicated to each of the heat exchangers so as to permit utilization of up to all available heat energy. In some embodiments, the system utilizes up to and including all of the available heat energy from the source. The expanders may be operatively coupled to one or more generators that convert the mechanical energy of the expansion process into electrical energy, or the mechanical energy may be communicated to other devices to perform work.
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公开(公告)号：US09664071B2
公开(公告)日：2017-05-30
申请号：US13081296
申请日：2011-04-06
申请人： Koichi Goto , Nobuo Okita
发明人： Koichi Goto , Nobuo Okita
摘要： A steam turbine plant of one embodiment includes at least one heater configured to change water into steam to produce high pressure steam and low pressure steam having a lower pressure than the high pressure steam, a high pressure turbine including a turbine or turbines connected to each other in series, and having a first inlet to supply the high pressure steam, a second inlet to supply the low pressure steam and located at a downstream of the first inlet, and an exhaust port located at a downstream of the second inlet, the high pressure turbine being configured to be driven by the steam supplied from the first and second inlets, a reheater configured to heat the steam exhausted from the exhaust port, and a reheat turbine configured to be driven by the steam from the reheater.
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公开(公告)号：US20160281975A1
公开(公告)日：2016-09-29
申请号：US15034071
申请日：2014-10-31
发明人： Franco GASPARINI , Corné WELGEMOED
CPC分类号： F22B1/18 , F01K7/165 , F01K7/18 , F01K13/006 , F01K13/02 , F01K17/02 , F01K17/025 , F01K23/064 , F22G5/12 , Y02E20/14 , Y02P80/15
摘要： A method of operating a combined heat and power plant (10) (CHP plant) is provided. The CHP plant (10) includes a hot flue gas generator (12) generating hot flue gas which is then cooled in a sequence of cooling steps to recover heat and to generate steam in a heat recovery steam generator (16) (HRSG). The HRSG (16) includes a steam evaporator (26) downstream of the hot flue gas generator (12), and at least one steam superheater (22) between the hot flue gas generator (12) and the steam evaporator (26). The steam superheater (22) is configured to superheat, during normal operating conditions of the CHP plant (10), at least steam (110) imported into the HRSG (16). The method includes, when there is insufficient heat removal from the hot flue gas downstream from the hot flue gas generator (12) but upstream of the steam evaporator (26) as a result of insufficient mass flow of imported steam (110) to the steam superheater (22), to the extent that the hot flue gas temperature downstream of the steam superheater (22) will rise or rises to or above a predetermined limit, quenching steam inside the steam superheater (22) or steam being fed to the steam superheater (22) by injecting boiler feed water or condensate (162) into the steam to produce steam in the steam superheater (22) thereby to increase the removal of heat from the hot flue gas and hence to reduce the hot flue gas temperatures downstream of the steam superheater (22).
摘要翻译： 提供了一种操作热电联产（10）（CHP工厂）的方法。 CHP装置（10）包括产生热烟道气的热烟气发生器（12），然后将其按照冷却步骤的顺序冷却以回收热量并在热回收蒸汽发生器（16）（HRSG）中产生蒸汽）。 HRSG（16）包括在热烟气发生器（12）下游的蒸汽蒸发器（26）和在热烟气发生器（12）和蒸汽蒸发器（26）之间的至少一个蒸汽过热器（22）。 蒸汽过热器（22）被配置为在CHP设备（10）的正常操作条件期间至少将导入到HRSG（16）的蒸汽（110）过热。 该方法包括，当从热烟道气发生器（12）下游的热烟道气排出的热量不足而蒸汽蒸发器（26）的上游，由于进口蒸汽（110）的质量流量不足 过热器（22），使得蒸汽过热器（22）下游的热烟道气温度升高或上升到或超过预定极限，将蒸汽过热器（22）内的蒸汽骤冷或送入蒸汽过热器 （22）通过将蒸汽给水或冷凝物（162）注入到蒸汽中以在蒸汽过热器（22）中产生蒸汽，从而增加从热烟道气中去除热量，从而减少热烟道气温度 蒸汽过热器（22）。
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公开(公告)号：US20160273405A1
公开(公告)日：2016-09-22
申请号：US15034097
申请日：2014-10-31
发明人： Franco GASPARINI , Rian WESSELS , Corné WELGEMOED
CPC分类号： F01K23/10 , F01K7/18 , F01K13/02 , F01K17/025 , F01K23/064 , F02C6/18 , F22B1/1815 , F22G5/12 , Y02E20/14 , Y02P80/15
摘要： A method of operating a combined heat and power plant (10) (CHP plant) includes generating hot flue gas and cooling the hot flue gas in a sequence of cooling steps to recover heat and to generate steam in a heat recovery steam generator (16) (HRSG). The HRSG (16) includes an LP steam evaporator (36) designed to generate steam at least over a pressure range of from 2 bar(g) to 18 bar(g) so that either LP steam or MP steam can selectively be generated by the LP steam generator (36), thereby to cool the hot flue gas, and an MP steam superheater (24) upstream of the LP steam evaporator (36) to superheat MP steam in heat exchange with the hot flue gas thereby to cool the hot flue gas. The method further includes, when no or insufficient MP steam is being imported to the MP steam superheater (24) to ensure safe operation of the MP steam superheater, and/or when a demand exists for exporting MP steam which cannot be satisfied by imported MP steam superheated in the MP steam superheater (24), and/or when a demand exists for MP steam in the CHP plant which cannot be satisfied by imported MP steam, operating the LP steam evaporator (36) at an operating pressure in the range of between 8 bar(g) and 18 bar(g) to generate MP steam to wet the MP steam superheater (24) and/or to satisfy at least to some extent said demand for MP steam, and thereafter, when sufficient MP steam is being imported to the MP steam superheater (24) from external of the CHP plant (10) to ensure safe operation of the MP steam superheater (24), and/or when any demand for exported MP steam is satisfied by imported MP steam which is superheated in the MP steam superheater (24) and then exported, and/or when there is no more demand for exporting of MP steam, and/or when the demand for MP steam in the CHP plant (10) is being satisfied at least to some extent by imported MP steam, reducing the operating pressure of the LP steam evaporator (36) to a pressure in the range of between 2 bar(g) and 8 bar(g) thereby to generate LP steam.
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9.发明申请公开(公告)号：US20140373541A1
公开(公告)日：2014-12-25
申请号：US14478648
申请日：2014-09-05
发明人： Yoshifumi KATO
CPC分类号： F01D17/08 , F01D17/10 , F01D17/145 , F01D21/14 , F01K7/04 , F01K7/18 , F01K13/02 , F05D2220/31 , F05D2270/301
摘要： A safety operation method includes detecting a steam pressure inside a high-pressure casing of the high-pressure part and a steam pressure inside a low-pressure casing of the low-pressure part; obtaining a low-pressure casing limit pressure as a reference corresponding to a pressure of the high-pressure casing in each detection, on a basis of a pressure correlation line expressing a prescribed special relation between preset high-pressure casing pressure and low-pressure casing pressure of the extraction steam turbine; comparing the low-pressure casing limit pressure with the detected pressure of the low-pressure casing; and forcibly throttling an opening of the main steam control valve to reduce the flow rate of steam flowing into the high-pressure part, in a state in which the extraction control valves continue controlling an operation of the extraction steam pressure, when the detected pressure of the low-pressure casing is judged to be higher than the low-pressure casing limit pressure.
摘要翻译： 一种安全操作方法，包括检测高压部分的高压壳体内的蒸汽压力和低压部件的低压壳体内的蒸汽压力; 基于表示规定的预设高压套管压力和低压套管的特殊关系的压力相关线，在每次检测中获得低压套管极限压力作为对应于高压套管的压力的基准 抽汽汽轮机的压力; 将低压套管极限压力与低压套管的检测压力进行比较; 并且当检测到的压力达到检测压力时，在抽出控制阀继续控制提取蒸汽压力的操作的状态下，强制地节流主蒸汽控制阀的开口，以减少流入高压部分的蒸汽的流量 低压套管被判断为比低压套管极限压力高。
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公开(公告)号：US20140298809A1
公开(公告)日：2014-10-09
申请号：US14346528
申请日：2012-10-03
发明人： Katsushi Sorida , Tatsuo Ino , Yoshihisa Takahashi
IPC分类号： F01K7/00
CPC分类号： F01K7/00 , F01K7/18 , F01K25/10 , F22B33/14 , Y02P80/154
摘要： To provide a power generation system that recovers heat from low-temperature exhaust gas of not more than 150° C. and utilizes the heat to increase an amount of generated electric power of a steam turbine, whereby efficiency in thermal use can be improved. A power generation system includes heat exchangers and configured to exchange heat of a heat medium and heat of water, and a vacuum flasher configured to supply steam to a vacuum stage of a steam turbine, wherein heat media are supplied to the heat exchangers and so as to generate a water fluid having a temperature exceeding a water boiling point under vacuum of a vacuum stage, the water fluid is supplied to the vacuum flasher to generate steam under vacuum of the vacuum stage, and the steam is introduced into the vacuum stage of the steam turbine, whereby an amount of generated electric power is increased.
摘要翻译： 为了提供从低于150℃的低温排气回收热量的发电系统，利用热量增加蒸汽轮机的发电量，能够提高热利用效率。 发电系统包括热交换器并且被配置为交换热介质和水的热量，以及真空闪蒸器，其被配置为向蒸汽轮机的真空级供应蒸汽，其中热介质被供应到热交换器，并且因此 在真空级真空下产生温度超过水沸点的水流体，将水流供给到真空闪蒸器，在真空级的真空下产生蒸汽，将蒸汽引入真空级的真空级 蒸汽轮机，由此产生的电力量增加。
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