-
公开(公告)号：US10900418B2
公开(公告)日：2021-01-26
申请号：US15718705
申请日：2017-09-28
摘要： A combined cycle power plant that includes a gas turbine and HRSG engaged with a steam turbine via a water steam cycle having higher and lower pressure levels. The CCPP further includes a fuel line and fuel preheater. A higher pressure feedwater line delivers higher pressure feedwater to a higher pressure feedwater branch that extends through the fuel preheater, the high pressure feedwater branch including upstream and downstream segments defined to each side of the fuel preheater. A lower pressure feedwater line delivers lower pressure feedwater to a lower pressure feedwater branch. The downstream segment of the higher pressure feedwater branch is combined with the lower pressure feedwater branch at a junction point and a combined feedwater line extends therefrom. A first heat exchanger exchanges heat between the combined feedwater line and fuel line. A second heat exchanger exchanges heat between the higher pressure feedwater branch and fuel line.
-
公开(公告)号：US20210010393A1
公开(公告)日：2021-01-14
申请号：US17041865
申请日：2019-03-01
发明人： Daisuke ESAKI , Katsuhiro AOKI , Yoji ENDO , Junya IDEGUCHI , Naoya KANAKUCHI , Takashi SHIRAIWA
摘要： This single-shaft combined cycle plant comprises: a power generator; a gas turbine; a steam turbine that is driven by using waste heat from the gas turbine, and is connected to the power generator by a clutch when the rotational speed syncs with the rotational speed of the gas turbine; a steam turbine over-rotation prevention device; a gas turbine over-rotation prevention device; and a control device. The control device sets the power generator to an unloaded state and, whilst maintaining the rotational speed Ng of the gas turbine so as to be higher than the rotational speed Ns of the steam turbine and lower than the maximum rotational speed Nglim of the gas turbine, increases the rotational speed Ns of the steam turbine to the maximum rotational speed Nslim of the steam turbine (time t2-t4) and tests whether or not the steam turbine over-rotation prevention device operates normally.
-
公开(公告)号：US20200370446A1
公开(公告)日：2020-11-26
申请号：US16878875
申请日：2020-05-20
发明人： Joshua Tyler Mook , Michael Thomas Gansler , Scott Douglas Waun , Kevin Michael VandeVoorde , Aigbedion Akwara , Michael Robert Notarnicola , Jason Joseph Bellardi , Mohammed El Hacin Sennoun , Mary Kathryn Thompson , Mohamed Osama
摘要： An energy conversion apparatus may include an engine assembly, such as a monolithic engine assembly, that includes a first heater body and a first engine body. The first heater body may define a first portion of a first monolithic body or at least a portion of a first monolithic body-segment. The first engine body may define a second portion of the first monolithic body or at least a portion of a second monolithic body-segment operably coupled or operably couplable to the first heater body. The engine assembly may include a second heater body and/or a second engine body. The second heater body may define a portion of a second monolithic body or a third monolithic body-segment. The second engine body may define a portion of the second monolithic body or a fourth monolithic body-segment operably coupled or operably couplable to the second heater body and/or the first engine body.
-
公开(公告)号：US10830123B2
公开(公告)日：2020-11-10
申请号：US16220389
申请日：2018-12-14
IPC分类号： F02B37/10 , F02B37/013 , F01K23/10 , F02C6/18 , F02B37/007 , F02C6/12 , F02C7/10 , F02C7/143 , F02C9/16 , F02C9/28
摘要： Systems and methods are provided for a waste heat-driven turbocharger system. In one example, a system for use with a power generator having a rotary machine including a combustor and an exhaust passage flowing exhaust gases from the combustor comprises: a heat exchanger positioned in the exhaust passage; and a turbocharger system, comprising: at least one low pressure turbocharger including a low pressure turbine coupled to an outlet of the heat exchanger and a low pressure compressor coupled to an inlet of the heat exchanger; at least one mid-pressure turbocharger including a mid-pressure turbine coupled to the outlet and a mid-pressure compressor coupled to the low pressure compressor; and at least one high pressure turbocharger including a high pressure turbine arranged in series or parallel with the mid-pressure turbine and a high pressure compressor arranged in series with the mid-pressure compressor and coupled to the combustor of the rotary machine.
-
公开(公告)号：US10823016B2
公开(公告)日：2020-11-03
申请号：US15612436
申请日：2017-06-02
摘要： In a first embodiment, a system includes a turbine system including turbomachinery, one or more processors, and a memory storing instructions. When executed by the one or more processors, the instructions are configured to cause the one or more processors to receive an operating parameter of the turbomachinery, and calculate a risk of failure for the turbomachinery based at least in part on an asset failure mode model. The instructions are also configured to cause the one or more processors to categorize the risk of failure as a selected failure indicator category of a plurality of failure indicator categories, and output the selected failure indicator category.
-
公开(公告)号：US10808923B2
公开(公告)日：2020-10-20
申请号：US16142983
申请日：2018-09-26
申请人： Chevron U.S.A. Inc.
发明人： John A. Segerstrom
摘要： A high efficiency multi-stage duct fired heat recovery steam generator (HRSG) is provided to generate steam for use in thermal enhanced oil recovery (EOR) applications. The HRSG is equipped with a plurality of duct burners in series and a plurality of evaporators for transferring heat from the duct burners to the water to generate steam, with at least one evaporator corresponding to each of the duct burners. Each evaporator is arranged downstream from the corresponding duct burner. At least one perforated plate is configured to disperse and distribute available oxygen within a subsequent duct burner. Hot exhaust gas from a gas turbine (over 1000° F.) is directed to the duct burners in series, allowing further combustion and maximizing thermal efficiency for the HRSG to have a thermal efficiency of at least 92%, and for the exhaust gas exiting the HRSG to contain oxygen in a range of 2% to 8%.
-
公开(公告)号：US10808578B2
公开(公告)日：2020-10-20
申请号：US16064154
申请日：2015-12-22
申请人： Siemens Energy, Inc.
发明人： Uygar O. Selman , Matthew Kalish , Stephanie Boisvert , Ankur Deshmukh , Marc Fimpel , Balaji Ramamurthy , Miguel Cancelado , Peter Witte , Peter Simon Rop
IPC分类号： F01K23/10 , F22B1/18 , F02C6/18 , F02G5/02 , F01D19/00 , F01K9/00 , F01K13/02 , F01K23/04 , F01L19/00
摘要： A combined cycle power plant and method for operating a combined power plant with stack energy control are presented. The combined cycle power plant includes a gas turbine, a heat recovery steam generator including a plurality of heating surfaces, and a steam turbine. The heating surfaces may be partially bypassed to reduce steam production in the heat recovery steam generator during power plant startup. Less energy may be extracted from exhaust gas of the gas turbine. More energy may be dumped through an exhaust stack. The steam turbine may start without restriction of a gas turbine load during power plant startup. The steam turbine may start without increasing a size of an air cooled condenser while maintaining a higher load of a gas turbine during power plant startup.
-
公开(公告)号：US20200300127A1
公开(公告)日：2020-09-24
申请号：US16087897
申请日：2017-03-23
申请人： POWERPHASE LLC
发明人： Robert J. KRAFT
摘要： The invention relates generally to electrical power systems or steam generator systems including generating capacity of a coal plant where specific emissions and power is improved with an alternately fueled engine driving one or more air processes.
-
公开(公告)号：US20200295573A1
公开(公告)日：2020-09-17
申请号：US16606941
申请日：2017-12-08
发明人： Lisa Batsch-Smith
摘要： A method (110) of controlling an imbalance response in a power plant comprising first and second gas turbine engines and a steam turbine driven by steam generated by exhaust from the first and second gas turbine engines can comprise operating the first gas turbine engine at a first power output (116A), operating the second gas turbine engine at a second power output (116B), monitoring load demand from a power grid operating at a steady state condition (114), detecting a load imbalance on the power grid (120) that causes a deviation from the steady state condition, and adjusting the first power output and the second power output incongruently (128) during the imbalance response to change the first power output and the second power output to match the deviation from the steady state condition depending on contemporaneous efficiency states of the first and second gas turbine engines.
-
公开(公告)号：US10774691B2
公开(公告)日：2020-09-15
申请号：US15538444
申请日：2014-12-25
发明人： Masahiro Kobayashi , Hideki Nagao
摘要： A combined cycle plant includes: a plurality of turbine devices; and a connection line, in which each of the plurality of turbine devices includes a gas turbine unit which includes a gas turbine, a first compressor, and a waste heat recovery boiler, a steam turbine unit which includes a steam turbine, and a second compressor which is driven by power obtained from the steam turbine and contributes to compression of a process gas in a plant, and steam supply lines which supplies steam lead out from the waste heat recovery boiler to the steam turbine, and the connection line is disposed between the steam supply lines configuring the plurality of turbine devices and connect the plurality of steam supply lines to each other.
-
-
-
-
-
-
-
-
-
搜索结果
2137 条记录 (耗时 0.021 秒)
