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公开(公告)号：US10732595B2
公开(公告)日：2020-08-04
申请号：US15418976
申请日：2017-01-30
发明人： Yuya Tokuda , Takaaki Sekiai , Yasuhiro Yoshida , Takuya Yoshida , Kazunori Yamanaka , Norihiro Iyanaga , Fumiyuki Suzuki
IPC分类号： G05B19/042 , G05B13/04 , G06N20/00 , G05B17/02 , G06N5/02
摘要： Provided is a control parameter automatic-adjustment apparatus that adjusts a control parameter which is used when a control apparatus of a plant calculates an operational control signal, the apparatus including: a simulator that simulates operation of the plant; a learning unit that searches for an optimal control parameter using the simulator; and a knowledge database that stores knowledge information which associates an amount of change in the control parameter with an amount of change in a state of the plant, in which the learning unit includes a search range determination unit that determines a control parameter search range based on the knowledge information that is stored in the knowledge database.
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公开(公告)号：US11066956B2
公开(公告)日：2021-07-20
申请号：US16480419
申请日：2018-02-15
发明人： Tomoyuki Onishi , Fumiyuki Suzuki , Kensuke Futahashi , Hao Li
摘要： An on-off valve of the present invention includes a valve box which includes an inlet flow path of steam and an outlet flow path which communicates with the inlet flow path through a communication bole, a stop valve body which opens or closes the communication hole, and a stop valve support portion, in which the outlet flow path extends in a direction intersecting the opening direction of the communication hole toward a downstream side in a flow direction of the steam, and a minimum wall thickness of the valve box is smaller than a minimum wall thickness of the valve box.
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公开(公告)号：US10385736B2
公开(公告)日：2019-08-20
申请号：US15214502
申请日：2016-07-20
发明人： Tatsuro Yashiki , Yasuhiro Yoshida , Takuya Yoshida , Miyuki Kawata , Eunkyeong Kim , Kazunori Yamanaka , Norihiro Iyanaga , Fumiyuki Suzuki
IPC分类号： F01K23/10 , F01K23/16 , F22G5/04 , F22G5/18 , F01D13/00 , F01D15/10 , F01D17/10 , F01D17/14 , F01D21/00 , F02C6/18 , F02C9/32
摘要： There is provided a combined cycle power plant in which a high-pressure steam turbine and an intermediate-pressure steam turbine can operate in a state where amounts of thermal effect thereof are close to a limit value, and capable of reducing start-up time. A combined cycle power plant includes: an exhaust heat recovery boiler that includes a high-pressure superheater which superheats steam for a high-pressure steam turbine, and a reheater which reheats steam for an intermediate-pressure steam turbine; bypass pipes through which steam bypasses the high-pressure superheater and the reheater; bypass valves that regulate flow rates of steam which flows through the bypass pipes; and a bypass controller that controls the bypass valves such that a difference between thermal effect-amount margins of the turbines is decreased.
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公开(公告)号：US09422826B2
公开(公告)日：2016-08-23
申请号：US14314841
申请日：2014-06-25
发明人： Eunkyeong Kim , Yasuhiro Yoshida , Takuya Yoshida , Tatsuro Yashiki , Nobuyuki Hokari , Kenichiro Nomura , Kazunori Yamanaka , Fumiyuki Suzuki , Masaaki Tomizawa , Yuichi Takahashi
CPC分类号： F01D19/02 , F01D17/00 , F01D17/085 , F01K13/02 , F01K23/101 , Y02E20/16
摘要： A start control unit for a steam turbine plant, wherein inputting a measured value of a steam temperature fed to a steam turbine, a measured value or an estimated value of a rotor temperature of the steam turbine, and a measured value of a casing temperature of the steam turbine, and controlling a steam flow rate so as to increase the steam flow rate fed to the steam turbine when a difference between the steam temperature and the rotor temperature is smaller than a first regulated value and a difference between the rotor temperature and the casing temperature is a second regulated value or larger.
摘要翻译： 一种用于蒸汽轮机设备的启动控制单元，其中输入供给到蒸汽轮机的蒸汽温度的测量值，蒸汽涡轮机的转子温度的测量值或估计值，以及壳体温度的测量值 蒸汽轮机，并且控制蒸汽流量，以便当蒸汽温度和转子温度之间的差小于第一调节值和转子温度与转子温度之间的差异时，增加供给到蒸汽涡轮机的蒸汽流量 套管温度是第二个调节值或更大。
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公开(公告)号：US20190383169A1
公开(公告)日：2019-12-19
申请号：US16480419
申请日：2018-02-15
发明人： Tomoyuki Onishi , Fumiyuki Suzuki , Kensuke Futahashi , Hao Li
摘要： An on-off valve of the present invention includes a valve box which includes an inlet flow path of steam and an outlet flow path which communicates with the inlet flow path through a communication bole, a stop valve body which opens or closes the communication hole, and a stop valve support portion, in which the outlet flow path extends in a direction intersecting the opening direction of the communication hole toward a downstream side in a flow direction of the steam, and a minimum wall thickness of the valve box is smaller than a minimum wall thickness of the valve box.
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公开(公告)号：US10301974B2
公开(公告)日：2019-05-28
申请号：US15195268
申请日：2016-06-28
发明人： Yasuhiro Yoshida , Takuya Yoshida , Tatsuro Yashiki , Kazunori Yamanaka , Fumiyuki Suzuki , Norihiro Iyanaga
摘要： An activation control apparatus permits activating a steam turbine safely at high speed in response to a power generation plant state. A heat source apparatus heats low-temperature fluid to generate high-temperature fluid, and steam generation equipment generates steam by thermal exchange with the high-temperature fluid. A steam turbine is driven by the steam, and an adjustment apparatus adjusts a plant operation amount. A thermal effect amount prediction calculation device calculates a prediction value for a thermal effect amount for use for activation control of the steam turbine, and a changeover device decides, based on a state value of the power generation plant, the sensitivity of the thermal effect amount to a variation of the plant operation amount and outputs a changeover signal in accordance with the sensitivity. Based on the changeover signal, an adjustment device calculates the plant operation amount so as not to exceed a predetermined limit value.
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公开(公告)号：US09863283B2
公开(公告)日：2018-01-09
申请号：US14532253
申请日：2014-11-04
发明人： Tatsuro Yashiki , Yukinori Katagiri , Takuya Yoshida , Miyuki Kawata , Yasuhiro Yoshida , Eunkyeong Kim , Kenichiro Nomura , Kazunori Yamanaka , Fumiyuki Suzuki , Norihiro Iyanaga
CPC分类号： F01K13/02 , F01K7/165 , F05D2260/821 , F22B35/00
摘要： A steam turbine power plant includes a life consumption amount calculator configured to calculate life consumption amounts of a turbine rotor based on a value measured by a measurer, a thermal stress limit update timing determining device configured to determine a time when thermal stress limits are updated, an accumulated life consumption amount calculator configured to calculate accumulated life consumption amounts of the turbine rotor when the thermal stress limits are updated, a planned life consumption amount setting device configured to set planned life consumption amounts of the turbine rotor based on the accumulated life consumption amounts of the turbine rotor, a thermal stress limit calculator configured to calculate and update the thermal stress limits based on the planned life consumption amounts of the turbine rotor, and a plant command value calculator configured to calculate a plant command value based on the thermal stress limits.
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公开(公告)号：US09771825B2
公开(公告)日：2017-09-26
申请号：US14531293
申请日：2014-11-03
发明人： Yasuhiro Yoshida , Takuya Yoshida , Tatsuro Yashiki , Yukinori Katagiri , Eunkyeong Kim , Kenichiro Nomura , Kazunori Yamanaka , Fumiyuki Suzuki , Norihiro Iyanaga
CPC分类号： F01D19/02 , F01K7/165 , F01K13/02 , F05D2260/821 , F05D2270/44 , F22B35/00
摘要： Provided is a steam turbine plant activation control device that can flexibly handle an initial state amount of a steam turbine plant and activate a steam turbine at a high speed. The activation control device 21 for the steam turbine plant includes a heat source device 1 configured to heat a low-temperature fluid using a heat source medium and generate a high-temperature fluid, a steam generator 2 for generating steam by thermal exchange with the high-temperature fluid, a steam turbine 3 to be driven by the steam, and adjusters 11, 12, 13, 14, 15 configured to adjust operation amounts of the plant.
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