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公开(公告)号：US11070064B2
公开(公告)日：2021-07-20
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.
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公开(公告)号：US20210218707A1
公开(公告)日：2021-07-15
申请号：US17057276
申请日：2019-05-24
发明人： Koji SATO , Akihisa ENDO , Hiroyasu ISHIGAKI
摘要： An agent device transmits certain data, which is used for generating display data, of data relating to a plurality of pieces of operation data collected from an instrument to a computation server device. A service broker device relays certain data transmitted from the agent device to the server device. The server device generates display data on the basis of certain data relayed by the service broker device.
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43.发明授权公开(公告)号：US11048239B2
公开(公告)日：2021-06-29
申请号：US16514332
申请日：2019-07-17
发明人： Yasuhiro Yoshida , Takuya Yoshida , Takaaki Sekiai , Yuya Tokuda , Kazunori Yamanaka , Atsushi Yamashita , Norihiro Iyanaga
IPC分类号： G05B19/418 , G05B13/04 , G05B11/01 , G05B15/02
摘要： A control parameter optimizing system and an operation optimizing apparatus equipped therewith are provided, the system being applicable to an existing plant without modifying the control panel or equipment of the plant, the system further being capable of optimizing the operation control of the plant in accordance with diverse operational requirements. The system includes an objective function setting section, a plant model, and a control parameter optimizing section. The control parameter optimizing section includes an optimization control parameter selecting section and an optimization control parameter adjusting section. The optimization control parameter selecting section selects as an optimization control parameter the control parameter for optimizing an objective function based on control logic information extracted from a power plant. The optimization control parameter adjusting section adjusts the value of the optimization control parameter using the plant model in such a manner as to optimize the objective function.
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44.发明申请公开(公告)号：US20210180790A1
公开(公告)日：2021-06-17
申请号：US17270131
申请日：2019-12-20
发明人： Kohei Matsuo , Keisuke Matsuo , Shinya Hamasaki
摘要： To provide a burner that makes it possible to reduce error displacement of the distal end position of a burner main body when the burner main body is inserted. A burner (161) includes: a burner main body (162); a plurality of driving cylinders (163) that are disposed parallel to a direction of an axis line in which the burner main body (162) moves, and drive movement of the burner main body (162); a connecting member that connects the burner main body (162) and the plurality of driving cylinders (163); and a fitting member (170) that is provided between the burner main body (162) and the connecting member, and constrains relative movement in the direction of the axis line (X) and permits relative movement in a direction perpendicular to the direction of the axis line (X).
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公开(公告)号：US20210180518A1
公开(公告)日：2021-06-17
申请号：US17112447
申请日：2020-12-04
摘要： A deviation of fuel injection amounts among a plurality of fuel nozzles connected to one fuel header is suppressed while suppressing increases in a manufacturing man-hour count and a pressure loss of a fuel. A gas turbine combustor includes: a liner forming a combustion chamber; a plurality of fuel nozzles; a fuel header to which the plurality of fuel nozzles are connected; and a fuel supply flow passage connected to the fuel header, the fuel header including a first chamber to which the fuel supply flow passage is connected and a second chamber to which the plurality of fuel nozzles are connected. An outlet of the fuel supply flow passage is opened in the first chamber, and at least one communication opening communicating with the first chamber is opened in the second chamber. The outlet of the fuel supply flow passage faces an inner wall surface of the first chamber. The second chamber includes a region spreading from the communication opening toward the combustion chamber, and inlets of the fuel nozzles are disposed closer to the combustion chamber than entirety of the communication opening.
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公开(公告)号：US20210172342A1
公开(公告)日：2021-06-10
申请号：US17105862
申请日：2020-11-27
发明人： Yosuke OBA , Shingo NAKASHIMA
摘要： A gas turbine module includes a gas turbine that has a gas turbine rotor and a turbine shell; an inlet plenum that is connected to an inlet of the gas turbine; an exhaust plenum that is connected to an exhaust of the gas turbine; an enclosure that covers the gas turbine; and a common base on which the gas turbine, the inlet plenum, the exhaust plenum, and the enclosure are mounted. When moving the gas turbine, the gas turbine module is moved together.
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公开(公告)号：US11021780B2
公开(公告)日：2021-06-01
申请号：US16348774
申请日：2016-11-16
发明人： Atsuo Ota , Shinya Imano
摘要： This method for manufacturing a high-temperature component formed of a Ni-based alloy includes a step of subjecting a workpiece of the Ni-based alloy to hot die forging using predetermined dies to form a forge-molded article, the step including: a die/workpiece co-heating substep of heating the workpiece interposed between the dies to a forging temperature; and a hot forging substep of taking out the workpiece and the dies into a room temperature environment and immediately performing hot forging on the workpiece using a press machine. The predetermined dies are formed of another Ni-based superalloy comprising γ and γ′ phases, and have features in that: a solvus temperature of the γ′ phase is 1050-1250° C.; and the γ′ phase precipitates at least 10 vol. % at 1050° C. and has two kinds of forms of intra-grain γ′ phase precipitations within the γ phase grains and inter-grain γ′ phase precipitations between/among the γ phase grains.
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公开(公告)号：US20210095572A1
公开(公告)日：2021-04-01
申请号：US17050204
申请日：2019-03-19
发明人： Daiki FUJIMURA
摘要： In a combined cycle plant and a method for operating the same, the combined cycle plant is provided with a gas turbine, a waste heat recovery boiler, and a steam turbine, and is also provided with a low-pressure gland steam line for supplying steam to a low-pressure gland portion of a low-pressure turbine, and a first heat exchanging unit which performs heat exchange between gland steam flowing through the low-pressure gland steam line, and fuel gas to be supplied to a combustor.
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公开(公告)号：US20210079847A1
公开(公告)日：2021-03-18
申请号：US17050080
申请日：2019-06-11
摘要： A fuel nozzle for a gas turbine is a diffusion combustion type fuel nozzle for a gas turbine, including a nozzle body, a plurality of nozzle holes arranged along a circumferential direction of the nozzle body, each of the nozzle holes extending along an axial direction of the nozzle body and having a center axis inclined toward a center axis of the nozzle body downstream in the axial direction of the nozzle body, and a plurality of fuel supply holes extending along the axial direction of the nozzle body and connected to the plurality of nozzle holes to serve as fuel supply paths for supplying fuel, respectively. Each of the nozzle holes has an injection opening for injecting the fuel to a downstream end portion in the axial direction of the nozzle body.
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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.
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