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公开(公告)号：US20240318555A1
公开(公告)日：2024-09-26
申请号：US18402943
申请日：2024-01-03
发明人： Yasuteru KAWAI , Tsukasa TAKEUCHI , Tomohiko TSUKUDA , Yasunori ONO , Tetsuya MAKINO , Hiroyuki ICHIKAWA
IPC分类号： F01D5/00
CPC分类号： F01D5/005 , F05D2260/80 , F05D2260/821
摘要： An erosion amount managing apparatus in an embodiment includes a display information generation section configured to generate display information for displaying: past erosion amount related information indicating information on a past erosion amount of a rotor blade of a steam turbine from the past to the present calculated based on measured information; and future erosion amount related information indicating information on a future erosion amount of the rotor blade calculated based on a future operating condition input via a user interface screen and the past erosion amount related information.
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公开(公告)号：US20240319045A1
公开(公告)日：2024-09-26
申请号：US18406310
申请日：2024-01-08
发明人： Yasuteru KAWAI , Yusuke SUZUKI , Kenichi KASE , Tetsuya MAKINO , Jit Chern SANG , Tsukasa TAKEUCHI , Hiroyuki ICHIKAWA , Yasunori ONO
CPC分类号： G01M15/14 , G06T11/206 , G06T2200/24
摘要： A steam turbine nozzle deformation amount managing apparatus in an embodiment includes a display information generation section configured to generate display information for displaying: past deformation amount related information indicating information on a past deformation amount of a nozzle of a steam turbine from the past to the present calculated based on measured information; and future deformation amount related information indicating information on a future deformation amount of the nozzle calculated based on a future operating condition input via a user interface screen and the past deformation amount related information.
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3.发明公开公开(公告)号：US20240125673A1
公开(公告)日：2024-04-18
申请号：US18314189
申请日：2023-05-09
发明人： Yasutaka KAWADA , Yusuke SUZUKI , Shota NAKAJIMA , Yasuteru KAWAI
CPC分类号： G01M15/14 , F01D21/003
摘要： According to one embodiment, a blade damage evaluation system comprising one or more computers configured to: evaluate inflow and collision of solid particles into a turbine based on design data, maintenance data, and operation data; and calculate a survival rate by applying at least one data included in at least one of the design data, the maintenance data, and the operation data as at least one factor to a formula that models the turbine by survival time analysis, the survival rate indicating that erosion amount of at least one of a plurality of blades does not reach a predetermined threshold at arbitrary time in future.
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公开(公告)号：US20230048806A1
公开(公告)日：2023-02-16
申请号：US17814331
申请日：2022-07-22
发明人： Yasutaka KAWADA , Yusuke SUZUKI , Shota NAKAJIMA , Yasuteru KAWAI
摘要： A blade damage evaluation apparatus includes: a registration unit for design information of a turbine and maintenance information; an acquisition processor for detection data of sensors; a first discrimination processor for first facility states of the turbine at a plurality of past time points; a classification processor for classes Cn of a plurality of first facility states; a first determination processor for first operating state values of the turbine; another registration unit for first damage rates at past time points; a setting processor of a characteristic function for each of the classes Cn; a second discrimination processor for a second facility state of the turbine at the current time point; a second determination processor for a second operating state value of the turbine at the current time point; and an analyzer for a second damage rate at the current time point.
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公开(公告)号：US20240353096A1
公开(公告)日：2024-10-24
申请号：US18414609
申请日：2024-01-17
发明人： Yasuteru KAWAI , Yasutaka KAWADA , Shota NAKAJIMA , Tetsuya MAKINO , Yusuke SUZUKI , Tsukasa TAKEUCHI , Hiroyuki ICHIKAWA , Yasunori ONO
CPC分类号： F22B35/18 , F01D5/021 , F05D2220/31
摘要： A thinning amount managing apparatus in an embodiment for managing an amount of thinning of a first-stage rotor blade of a steam turbine caused by solid particles contained in working steam for working the steam turbine. The thinning amount managing apparatus includes a display information generation section configured to generate display information for displaying: past thinning amount related information indicating information on a past thinning amount of the first-stage rotor blade from the past to the present calculated based on measured information; and future thinning amount related information indicating information on a future thinning amount of the first-stage rotor blade calculated based on a future operating condition input via a user interface screen and the past thinning amount related information.
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公开(公告)号：US20240068380A1
公开(公告)日：2024-02-29
申请号：US18052018
申请日：2022-11-02
发明人： Yuka TSUKADA , Kazuhiro SAITO , Yusuke SUZUKI , Yoshikazu NINOMIYA , Osamu TANAKA , Yasuteru KAWAI , Shinichi TERADA , Makoto SASAKI
IPC分类号： F01D21/10
CPC分类号： F01D21/10 , F05D2220/31
摘要： There is provided a pit initiation evaluation system or the like capable of predicting pit initiation effectively and at low cost. In a pit initiation evaluation system of an embodiment, a pit initiation evaluation unit creates and retains, based on a dry-wet alternate time data, a deposit impurity concentration data, and a pit initiation data on pitting corrosion initiated in each of a plurality of turbine stages when an operation is actually performed in the steam turbine, a pit initiation evaluation table presenting a relationship between a dry-wet alternate time, a deposit impurity concentration, and pit initiation. Further, the pit initiation evaluation unit is configured to evaluate, by using the pit initiation evaluation table, pitting corrosion to be initiated in each of the plurality of turbine stages in an operation planned for the steam turbine.
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7.发明公开公开(公告)号：US20230392514A1
公开(公告)日：2023-12-07
申请号：US18450649
申请日：2023-08-16
发明人： Yusuke SUZUKI , Kenichi KASE , Yasuteru KAWAI
IPC分类号： F01D21/00
CPC分类号： F01D21/003 , F05D2220/31 , F05D2260/83 , F05D2240/128
摘要： A technique for simulating and precisely evaluating creep deformation behavior of a nozzle diaphragm in a steam turbine to be operated in a power generation plan involving large output change is provided.
A damage evaluation apparatus includes: an acquisition unit configured to acquire detection data from each of a plurality of sensors installed in a steam turbine; a calculation unit configured to calculate operating state quantity of a nozzle diaphragm in the steam turbine on the basis of these detection data; a computation unit configured to compute creep deformation velocity of the nozzle diaphragm on the basis of the operating state quantity; and an estimation unit configured to estimate deformation amount of the nozzle diaphragm from the creep deformation velocity on the basis of a future operation plan for the steam turbine.-
公开(公告)号：US20230126306A1
公开(公告)日：2023-04-27
申请号：US17867793
申请日：2022-07-19
发明人： Tetsuya SHITAKA , Yusuke SUZUKI , Keisuke TAKAKI , Yoshikazu NINOMIYA , Tsukasa TAKEUCHI , Yasuteru KAWAI
IPC分类号： G01N25/72 , G01N33/2045
摘要： A material deterioration evaluation device for evaluating embrittlement of equipment, includes: an operation data obtaining unit that detects and obtains a state of the equipment as operation data; an operation data storage unit that saves the operation data; a temperature evaluation unit that calculates a predetermined evaluation-target site temperature of the equipment based on the operation data; an evaluation-target component material storage unit that stores material data of a material forming the equipment and embrittlement estimation formulas; an embrittlement evaluation unit that calculates an embrittlement quantity of the material forming the equipment based on the evaluation-target site temperature, the material data, and the embrittlement estimation formulas; a risk evaluation unit that calculates a damage risk of the material that forms the equipment based on the embrittlement quantity; and a recommended maintenance time presentation unit that presents a recommended maintenance time of the equipment based on the damage risk.
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