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公开(公告)号：US12128393B2
公开(公告)日：2024-10-29
申请号：US17441358
申请日：2019-11-19
摘要： Provided are a denitration catalyst regeneration method and a denitration catalyst regeneration system, which are capable of recovering denitration performance to a high level and reducing the SO2 oxidation rate of a catalyst. A denitration catalyst regeneration method according to the present invention includes: a chemical solution cleaning step for immersing a denitration catalyst in a chemical solution containing a fluorine compound and an inorganic acid; a step for extracting the denitration catalyst from the chemical solution; and a finish washing step for washing the denitration catalyst extracted from the chemical solution with a finish cleaning solution containing an organic acid.
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公开(公告)号：US12111627B2
公开(公告)日：2024-10-08
申请号：US17618096
申请日：2020-06-26
IPC分类号： G05B19/042 , G06Q10/20
CPC分类号： G05B19/0428 , G06Q10/20 , G05B2219/2639
摘要： An arithmetic operation device includes a performance calculation unit that is configured to calculate performance of a plant before introduction of a part and the performance of the plant after the introduction of the part for each of combinations of a plurality of loads in the plant and a plurality of atmospheric temperatures around the plant, a storage unit that is configured to store a data table indicating a percentage of an operating time of the plant for each of the combinations, and a performance improvement calculation unit that is configured to calculate, on the basis of a calculation result in the performance calculation unit and the data table, how much the performance of the plant is improved compared with the performance before the introduction of the part in a case where the part is introduced and the plant is operated at the percentage indicated by the data table.
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公开(公告)号：US11962052B2
公开(公告)日：2024-04-16
申请号：US17430851
申请日：2020-02-14
发明人： Daigo Kobayashi , Hiroyuki Ozawa , Masahiro Mihara , Ryutaro Mori , Takeshi Matsuo , Norihisa Matake
IPC分类号： H01M8/2475 , H01M8/04007 , H01M8/04082 , H01M8/04111
CPC分类号： H01M8/2475 , H01M8/04067 , H01M8/04111 , H01M8/04201
摘要： A fuel cell module comprises: at least one cell stack including a plurality of single fuel cells supplied with a fuel gas and an oxidizing gas to generate power; a sealable housing accommodating the at least one cell stack and forming a power generation chamber inside the housing; a pressure vessel accommodating the housing; and an oxidizing gas supply pipe for supplying the oxidizing gas to the cell stack. At least one pressure equalizing opening is formed in the housing to allow communication between inside and outside of the housing. The at least one pressure equalizing opening includes only one pressure equalizing opening, or a plurality of pressure equalizing openings in which a distance between a pressure equalizing opening in the highest position and a pressure equalizing opening in the lowest position is within 0.1H, where H is a height of the housing.
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4.发明授权公开(公告)号：US11913383B2
公开(公告)日：2024-02-27
申请号：US17615895
申请日：2020-06-12
发明人： Yoshifumi Okajima , Masahiko Mega , Taiji Torigoe , Atsushi Moriwaki , Hiroshi Makigano , Koichi Tanimoto
CPC分类号： F02C7/24 , C23C4/073 , C23C4/134 , F01D5/288 , F01D17/085 , F01D21/003 , G01N25/18 , F05D2220/32 , F05D2230/312 , F05D2230/90 , F05D2260/231 , F05D2270/80 , F05D2300/2118 , F05D2300/514 , F05D2300/611
摘要： The present invention provides a thermal barrier coated component, monitoring or evaluation of the soundness of which is able to be adequately carried out on the basis of the thermal boundary conditions that are detected by a sensor. A thermal barrier coated component according to the present invention comprises: a base material; a first bond coat layer that is a metal bonding layer formed on the base material; a sensor unit that comprises a sensor and a conductive wire, which are formed on the first bond coat layer; a second bond coat layer that is formed on the first bond coat layer so as to cover at least the sensor unit, while having a surface roughness higher than that of the first bond coat layer; and a top coat layer that is formed on the second bond coat layer.
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5.发明授权公开(公告)号：US11898995B2
公开(公告)日：2024-02-13
申请号：US17612070
申请日：2020-07-02
IPC分类号： G01N3/06 , G01N33/2045 , G01N3/34
CPC分类号： G01N3/068 , G01N3/34 , G01N33/2045
摘要： A method for evaluating a crack in a metal member comprises a first removal step (S10) and a second removal step (S20). In the first removal step (S10), a step for electrolyzing a metal member having an oxide scale formed on a surface thereof, a step for acquiring an image of the oxide scale as a first image, and a step for determining whether or not a scale crack has occurred are repeated until occurrence of a scale crack is determined. In the second removal step (S20), a step for electrolyzing the metal member having the scale crack, a second image acquisition step for acquiring an image of the oxide scale as a second image, and a second determination step for determining whether or not the scale crack has disappeared are repeated until disappearance of the oxide scale is determined.
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公开(公告)号：US11898461B2
公开(公告)日：2024-02-13
申请号：US17628401
申请日：2020-07-30
发明人： Chongfei Duan , Hideaki Sugishita , Kazuyuki Matsumoto , Hideki Ono , Yoshihiro Kuwamura , Kiyoshi Segawa , Hisataka Fukushima
IPC分类号： F01D5/22 , F01D5/20 , F01D11/02 , F16J15/447
CPC分类号： F01D5/225 , F01D5/20 , F01D11/02 , F16J15/4472
摘要： A steam turbine provided with: a rotor; a plurality of movable blades each of which has a movable blade body and a shroud, and which are circumferentially arranged at intervals; a casing that has a recessed section for accommodating the shroud; fins that form clearances from the outer circumferential surface of the shroud; a stator blade support part disposed on the downstream side of the recessed section; a plurality of stator blades circumferentially arranged at intervals; and an annular partition plate that extends from a recessed section downstream surface toward the upstream side thereof. The casing has formed therein a bypass flow passage that communicates a region radially outside of the partition plate and a region between the stator blades.
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公开(公告)号：US11879365B2
公开(公告)日：2024-01-23
申请号：US17603472
申请日：2020-03-03
发明人： Daiki Fujimura , Susumu Sekine
摘要： A steam turbine plant and an operating method thereof, and a combined cycle plant and an operating method thereof, include: a turbine; steam supply lines that supply main steam to the turbine; a steam control valve and an intercept valve provided to the steam supply lines; and a first auxiliary steam supply line that supplies auxiliary steam to the turbine via the steam supply lines which are located farther downstream than the steam control valve and the intercept valve.
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公开(公告)号：US11872663B2
公开(公告)日：2024-01-16
申请号：US17258240
申请日：2019-07-19
发明人： Masaki Honda , Toshiaki Nishio , Nobuyoshi Komai , Takumi Tokiyoshi , Masaaki Fujita , Kimihiko Tominaga , Hiroyuki Ohyama , Fumitoshi Sakata , Koichi Teshima , Eiji Murakami , Akinori Yamaguchi , Fumio Nishi
IPC分类号： B23K31/00 , B23P6/04 , B23K31/02 , B23K31/12 , F16L55/16 , B23K103/04 , B23K101/06
CPC分类号： B23P6/04 , B23K31/027 , B23K31/12 , F16L55/1608 , B23K2101/06 , B23K2103/04
摘要： A repair welding method according to at least one embodiment is for a member in which a first end and a second end of a parent material are connected by welding and includes: a step of removing a portion including at least a part of a first heat-affected zone of an existing welded portion of the member; and a step of performing repair welding after removing the portion. In a cross-section including the parent material and the existing welded portion, all intersection portions between the first heat-affected zone of the existing welded portion and a second heat-affected zone due to the repair welding have an intersection angle between the first heat-affected zone and the second heat-affected zone of 70° to 110°.
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公开(公告)号：US11859505B2
公开(公告)日：2024-01-02
申请号：US17617700
申请日：2020-08-18
发明人： Makoto Kondo , Katsuhisa Hamada
CPC分类号： F01D25/243 , F01D25/28 , F01D11/24 , F01D19/00 , F01D25/10 , F05D2220/31 , F05D2240/14
摘要： This steam turbine is provided with: a steam turbine rotor which extends in an axial direction; a pair of bearings which support the steam turbine rotor in such a way as to be capable of rotating about the axial direction; a steam turbine casing which encloses the steam turbine rotor between the pair of bearings; a casing support unit which supports the steam turbine casing from below; and a first heating unit which is provided on the casing support unit and which is capable of heating the casing support unit.
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10.发明授权公开(公告)号：US11834969B2
公开(公告)日：2023-12-05
申请号：US17630237
申请日：2020-09-25
CPC分类号： F01K9/00 , C02F1/66 , F01D25/00 , F22B37/56 , F22D11/006 , F05D2220/31 , F05D2260/60
摘要： A steam turbine plant includes a chemical supply part configured to supply a pH adjuster to feedwater to a steam generator, an adjustment part for adjusting a supply amount of the pH adjuster to the feedwater by the chemical supply part, and at least one carbon steel component that includes a pipe or a device formed from carbon steel and through which the feedwater flows, the carbon steel component being configured such that an internal temperature at least partially falls within a range of not less than 120° C. and not greater than 180° C. under load operating condition of the steam turbine plant. The adjustment part is configured to, under the load operating condition, adjust the supply amount of the pH adjuster such that pH of the feedwater in each of the at least one carbon steel component is not less than 9.8.
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