1801 patents
Page 12 of 91
Utility
Gas Turbine Plant
17 Aug 23
A gas turbine plant provided with a gas turbine; a waste heat recovery boiler which generates steam by exchanging heat between exhaust gas from the gas turbine and water; an absorption tower which recovers carbon dioxide contained in the exhaust gas; an EGR line which bleeds a portion of the exhaust gas and guides the same to the intake side of the gas turbine; an exhaust gas heater which uses steam extracted from the waste heat recovery boiler as a heat medium to heat the exhaust gas that has passed through the absorption tower, by exchanging heat between the heat medium and the exhaust gas; and an EGR heater which is provided on the EGR line, and which heats the exhaust gas passing through the EGR line by exchanging heat between the exhaust gas passing through the EGR line and the heat medium discharged from the exhaust gas heater.
Hideyuki UECHI, Takashi SONODA, Kazunori TSUJII, Naoyuki NAGAFUCHI
Filed: 20 Jul 21
Utility
Cause Estimation Apparatus and Cause Estimation Method
17 Aug 23
A cause estimation device includes: an acquisition unit that acquires a measurement value of a target apparatus; a likelihood calculation unit that calculates, in a case where it is assumed that events occur due to a common cause, a likelihood of an occurrence of each of the events based on the measurement value; a table storage unit that stores a cause table in which a cause of occurrence of the event and a frequency of the cause of occurrence are associated with each other for each of the plurality of events; and an estimation unit that rewrites the frequency registered in the cause table into a frequency in the case where it is assumed that the plurality of events occur due to the common cause, and estimates the cause of occurrence based on the rewritten cause table and the likelihood.
Shunsaku Matsumoto, Kuniaki Aoyama, Yasuyuki Ogawa, Takashi Sonoda, Daisuke Kudo
Filed: 13 Oct 21
Utility
Gas turbine and method for adjusting flow rate of fuel supplied thereto
15 Aug 23
A gas turbine including a fuel gas supply system to supply fuel gas via a fuel piping to a gas turbine combustor, a pressure control valve installed halfway along the fuel piping, a flow control valve installed in the fuel piping at downstream of the pressure control valve, and a control device configured that in a case where a flow rate change occurs in the fuel gas flowing through the fuel gas supply system, along with a tendency of change in an opening degree of the pressure control valve or a pressure P1 at upstream of the pressure control valve, a command value of the flow rate of the fuel gas that is determined based on a demand value of a gas turbine load is adjusted so that the change is suppressed in the opening degree of the pressure control valve or the pressure P1.
Tatsuya Hagita, Keita Naito, Mitsuhiro Karishuku, Masaya Kato, Satoshi Tanimura
Filed: 16 Sep 21
Utility
Jig for and method of measuring length of stud bolt
15 Aug 23
A length measuring jig measures the length of a tubular stud bolt with a central hole defined axially therethrough while the tubular stud bolt remains mounted on a target product such as a steam turbine casing.
Yohei Tsuchiya, Takahiro Igawa
Filed: 1 Jun 22
Utility
Method for Forming Composite Material and Jig for Forming Composite Material
10 Aug 23
A method for forming a composite material that includes a product portion and a surplus portion formed on an end side of the product portion.
Akihito SUZUKI, Koichi HASEGAWA, Satoshi OHMURA, Tsuyoshi OKAWARA, Hiromichi MATSUDA
Filed: 7 Feb 23
Utility
Cold Recovery Facility and Marine Vessel
10 Aug 23
A cold recovery facility includes: a first fuel tank configured to store a first fuel in liquid state; a second fuel tank configured to store a second fuel in liquid state having a liquefaction temperature higher than the liquefaction temperature of the first fuel; a first circuit configured to circulate a first medium; a first expansion turbine provided on the first circuit and configured to expand the first medium in gaseous state; a first heat exchanger provided downstream of the first expansion turbine on the first circuit and configured to condense the first medium; a pump provided downstream of the first heat exchanger on the first circuit and configured to boost the first medium; a second heat exchanger provided downstream of the pump on the first circuit and configured to vaporize the first medium; and a third heat exchanger provided downstream of the second heat exchanger and upstream of the first expansion turbine on the first circuit, wherein the first heat exchanger is configured to vaporize the first fuel by heat exchange between the first fuel in liquid state from the first fuel tank and the first medium, and the third heat exchanger is configured to vaporize the second fuel by heat exchange between the second fuel in liquid state from the second fuel tank and the first medium.
Toshimitsu TANAKA, Ryo TAKATA
Filed: 8 Feb 23
Utility
Fiber-reinforced Sheet Laminate, Production Method for Fiber-reinforced Sheet Laminate, and Production Method for Structure
10 Aug 23
A multi-stack material includes a plurality of fiber-reinforced sheets that are laminated.
Toshiki KITAZAWA, Masahiko SHIMIZU, Yoko TAGUCHI
Filed: 28 Dec 20
Utility
Cold Heat Recovery System and Marine Vessel or Floating Body
10 Aug 23
A cold heat recovery system includes a first cold heat recovery cycle including a first expansion turbine and configured to circulate a first heat medium, a second cold heat recovery cycle including a second expansion turbine and configured to circulate a second heat medium, a first heat exchanger provided on a downstream side of the first expansion turbine on the first cold heat recovery cycle and configured to transfer cold energy from a first fuel to the first heat medium, a second heat exchanger configured to transfer cold energy from a second fuel to the first fuel flowing on a downstream side of the first heat exchanger and reliquefy the first fuel, and a third heat exchanger provided on a downstream side of the second expansion turbine on the second cold heat recovery cycle and configured to transfer cold energy to the second heat medium from the first fuel flowing on a downstream side of the second heat exchanger.
Toshimitsu TANAKA, Ryo TAKATA
Filed: 8 Feb 23
Utility
Cold Energy Recovery Facility and Marine Vessel
10 Aug 23
A cold energy recovery facility includes a liquid hydrogen tank configured to store liquid hydrogen a first circuit configured to circulate a first working medium, a second circuit configured to circulate a second working medium having a freezing point higher than the first working medium, a first turboexpander provided in the first circuit, the first turboexpander being configured to be driven by the first working medium in a gas state, a second turboexpander provided in the second circuit, the second turboexpander being configured to be driven by the second working medium in a gas state, a first heat exchanger configured to vaporize the liquid hydrogen from the liquid hydrogen tank by heat exchange with the first working medium, a second heat exchanger configured to vaporize the first working medium in a liquid state by heat exchange with the second working medium, and a third heat exchanger configured to vaporize the second working medium in a liquid state by heat exchange with a heat medium, wherein the first circuit and the first turboexpander form a part of a first thermodynamic cycle that uses the liquid hydrogen as a low-temperature heat source in the first heat exchanger, and the second circuit and the second turboexpander form a part of a second thermodynamic cycle that uses the first working medium as a low-temperature heat source in the second heat exchanger.
Toshimitsu TANAKA, Ryo TAKATA
Filed: 8 Feb 23
Utility
Heat Exchanger
10 Aug 23
A heat exchanger includes a pipe main body forming a flow path to which a first fluid is supplied, a pair of partition plates defining a closed space, a plurality of heat transfer tubes, a supply portion configured to supply a second fluid into the closed space, a discharge portion configured to discharge the second fluid in the closed space, and a flow path forming portion forming a plurality of small flow path portions between the heat transfer tubes adjacent to each other.
Nobuhide Hara, Koichi Tanimoto, Tadahiko Suzuta, Hiroyuki Nakaharai
Filed: 1 Feb 23
Utility
Laser Light Profile Measuring Device and Laser Light Profile Measuring Method
10 Aug 23
A laser light profile measuring device of the present disclosure includes a reflection attenuation part reflecting and attenuating at least part of laser light incident from a first direction in a direction different from the first direction to generate measurement target laser light traveling in the first direction, a capture unit placed on one side of the reflection attenuation part in the first direction and which captures the measurement target laser light, a cooling body covering at least part of the reflection attenuation part and the capture unit in a circumferential direction with respect to the first direction, a refrigerant supply unit forcibly feeding a refrigerant toward the cooling body, and a rotation support part supporting the reflection attenuation part, the cooling body, and the refrigerant supply unit to be rotatable around a rotation axis extending in a horizontal direction.
Ryuichi Narita, Toshiya Watanabe, Misaki Fukuyama, Takeshi Kaneko, Takayuki Numata
Filed: 4 Jan 23
Utility
Heat Insulation Structure for High-temperature Reaction Room
10 Aug 23
A heat insulation structure for a high-temperature reaction room includes a heat insulating body surrounding the reaction room.
Yoshiki Kato, Shigenori Suemori, Koji Miyamoto, Kenta Araki, Keijo Hara
Filed: 25 Dec 20
Utility
Laser Radiation System, Image Generation Device, and Recording Medium
10 Aug 23
Tomoya MORIOKA, Shingo NISHIKATA, Koichi HAMAMOTO
Filed: 1 Nov 21
Utility
Cooling wall, gasifier, integrated gasification combined cycle, and manufacturing method of cooling wall
8 Aug 23
A cooling wall includes: a wall surface defined by arrangement of central axes of a plurality of cooling tubes; and an opening formed in a part of the wall surface in which a burner is installable, each of the plurality of cooling tubes forming the opening has a straight portion and a curved portion, the plurality of cooling tubes include a first cooling tube whose first virtual axis extending in an axial direction of the straight portion overlaps the opening, and a second cooling tube whose second virtual axis extending in an axial direction of the straight portion is located outside an outer circumference of the opening in a radial direction, the curved portion of the first cooling tube is arranged so as to form a curve along the outer circumference surface of the opening and on a surface along the wall surface.
Yuta Konagayoshi, Makoto Toyomaru, Kengo Muroya, Fumihiro Chuman
Filed: 7 Nov 19
Utility
Transition piece, combustor, and gas turbine engine
8 Aug 23
A transition piece includes a first flow passage group formed by arranging a plurality of intra-wall flow passages, a second flow passage group, and a plurality of dilution holes that penetrate a plate, and establish communication between a compressed air main flow passage and a combustion gas flow passage, each intra-wall flow passage of the first flow passage group and the second flow passage group having an inlet facing the compressed air main flow passage at an end portion on a side near the gas turbine, and having an outlet facing the combustion gas flow passage at an end portion on a side near the combustor liner, a dilution hole being located nearer to the inlet of an intra-wall flow passage of the second flow passage group than to the outlet of the intra-wall flow passage of the second flow passage group.
Naoto Fujiwara, Shohei Numata, Yasuhiro Wada, Shota Igarashi, Yoshitaka Hirata
Filed: 16 Sep 22
Utility
Steam turbine
8 Aug 23
A steam turbine includes an outer casing (19) that is provided with a first steam outlet port (54), through which exhaust steam flowing through the entire length of a flow path (21) defined between an inner casing main body (45) and an outer casing main body (51) in a direction along an axis (O1) is discharged to the outside of the outer casing (19), and a second steam outlet port (55), which is provided in the outer casing main body (51) and through which the exhaust steam passing through a portion of the flow path (21) or the exhaust steam not passing through the flow path (21) is discharged to the outside of the outer casing (19); a first valve (28) that adjusts opening of the first steam outlet port (54); and a second valve (32) that adjusts opening of the second steam outlet port (55).
Hideyuki Uechi, Hideaki Sugishita, Takumi Matsumura, Ryo Egami
Filed: 20 Oct 17
Utility
Method and system for measuring turbine shape
8 Aug 23
A method and system for measuring a turbine shape is provided in which an appropriate measurement accuracy can be achieved that is sufficient to prevent a failure to recognize features of shape of a measurement object, with extension of a measurement time suppressed.
Koji Ishibashi, Shunsuke Mizumi, Kenji Yashirodai, Jie Huang
Filed: 8 Nov 21
Utility
Turbine stator blade and steam turbine
8 Aug 23
A turbine stator blade (21) includes a pressure side (21P) extending in a radial direction intersecting a flow direction of steam, and facing upstream in the flow direction.
Shunsuke Mizumi, Chongfei Duan, Yasuhiro Sasao, Soichiro Tabata
Filed: 14 Feb 20
Utility
Control Device, Inspection System, Control Method, and Non-transitory Computer-readable Medium
3 Aug 23
A control device for an inspection device including a long flexible robot that is formed by connecting a plurality of units and bendable at each unit with a desired curvature, and a posture actuator that adjusts a posture of the unit includes a target posture specifying unit that specifies a target posture including positions of representative points of the respective units traveling along a predetermined route, and an operation amount determination unit that determines an operation amount for bringing the unit to the target posture using a learning model with the target posture of the unit as an input and an operation amount of the posture actuator as an output.
Yasutaka FUKE, Hirone KOMATSU, Takashi MATSUZAWA, Shin ASANO, Kotaro TADANO, Koshiro IRIE, Chanvicharo LY
Filed: 30 Jan 23
Utility
Partial Oxidative Coupling Catalyst and Olefin Production Device and Olefin Production Method Using Catalyst
3 Aug 23
A partial oxidative coupling catalyst has a structure in which a component represented by M2ZrO3 is supported on a support, where M represents an alkali metal.
Atsuhiro Yukumoto, Yukio Tanaka, Noriaki Senba, Kazuhiro Takanabe, Bhavin Siritanaratkul
Filed: 16 Sep 21