Abstract: There is provided a method including: performing an upgrade of reducing a supply amount of cooling air supplied to a turbine and replacing at least some of components provided in the turbine with components adapted to the supply amount of cooling air; and changing a set value calculation function according to the post-upgrade supply amount of cooling air and the replaced components.

Abstract: A metal-powder producing apparatus includes a spray chamber, and a plurality of spray nozzles that liquid-spray a melted metal into the spray chamber. Each of the plurality of spray nozzles includes: a liquid nozzle that allows the melted metal to flow down into the spray chamber; and a gas-jet nozzle that has a plurality of gas-jet holes arranged around the liquid nozzle and causing a gas fluid to collide with the melted metal having flowed down from the liquid nozzle.

Abstract: A flow passage forming plate includes a plate main body, a peripheral wall, and a ledge. The plate main body has a gas path surface facing a side of a gas flow passage, and an inner surface facing the opposite side from the gas path surface. The peripheral wall protrudes along a peripheral edge of the plate main body, from the inner surface toward an opposite-flow-passage side. The ledge protrudes along an inner wall surface of the peripheral wall, from the inner surface toward the opposite-flow-passage side. The ledge receives an impingement plate having a plurality of through-holes. The ledge is disposed only in a part of an inner wall surface of the peripheral wall.

Abstract: A bar or coil includes a conductor arranged in a rotating electrical machine and an insulating layer having a Predetermined insulation thickness disposed on a surface of the conductor. The repair method includes: extracting a part of the bar or coil as a repair target; removing the insulating layer in a part of the bar or coil as the repair target; disposing a first insulating layer in the part where the insulating layer is removed, the first insulating layer having an insulation thickness thinner than the predetermined insulation thickness; and disposing a second insulating layer on a surface of the first insulating layer to form an insulating layer after a repair where the first insulating layer and the second insulating layer are added, the insulating layer after the repair having a thickness of the predetermined insulation thickness.

Abstract: The upstream-side wall portion 54 includes, in the circumferential direction thereof, a first region 31 where air inlets 30 are formed at a lower density, and a second region 32 which is disposed at a position offset from the first region 31 in the circumferential direction, and in which the air inlets 30 are formed at a higher density than in the first region 31.

Abstract: The present invention provides a data sorting device and method and a monitoring and diagnosis device, which are able to create a model conveniently. A data sorting device and a monitoring and diagnosis device of the present invention include an operating data database which stores operating data of the plant equipment in a time-series manner. The devices input the operating data that are highly associated physically and engineeringly among the operating data stored in the operating data database, inputting processing attributes relevant to the operating data that are highly associated physically and engineeringly, creating a model simulating characteristics of the plant equipment, and performing data sorting, monitoring, and diagnosis through use of the model.

Abstract: An alarm display system includes: a database configured to store a plurality of sets of predetermined events, occurrence probabilities of the events, checking situations of the events, and countermeasure policies of the events in association with the sets; an alarm information acquisition unit configured to acquire alarm information indicating that the events occur in monitoring target devices; a support information addition unit configured to add support information for supporting determination of a countermeasure for the alarm information according to information stored in the database, to the acquired alarm information; and a display unit configured to display alarm display information in which the support information is added.

Abstract: A multiple tube-type heat exchanger (25) is provided with a cylindrical heat exchanger shell (36) and a heat transfer tube unit (38) which is mounted in a removable manner within the heat exchanger shell (36). The heat transfer tube unit (38) is provided with a plurality of heat transfer tubes (50) extending inside the heat exchanger shell (36) in the longitudinal axis direction; a binding member (51 serves also as this binding member) for binding the heat transfer tubes (50); and a plurality of rotary journal sections (51, 52) which are concentric with the center axis (CL) of the heat transfer tube unit (38), are provided at positions located at a distance from each other in the direction of the center axis (CL), and enable the heat transfer tube unit (38) to be supported by predetermined rotation support sections provided outside the heat exchanger shell (36).

Abstract: A hollow portion is defined inside a stator blade, and a slit, extending in a height direction of the stator blade, opens to a surface of the stator blade and is in communication with the hollow portion. The slit is defined on the surface of the stator blade and includes a recess portion which is flat and has a longitudinal side extending in the height direction of the stator blade, and at least one through hole which opens to a bottom surface of the recess portion and to the hollow portion. In a projection plane to which a cross section of the slit is projected in the height direction of the stator blade, an area of an inlet opening of the through hole which opens to the bottom surface of the recess portion occupies a part of a projection width of the recess portion.

Abstract: A steam turbine casing includes a lower half part having a plurality of lower support portions projecting horizontally around a lower half part body; an upper half part connected onto the lower half part; a support member fixed to an upper surface part of a respective one of the lower support portions; and a plurality of support columns each having a lower end part on a frame and an upper end part to which a lower surface part of the support member fixed to a corresponding one of the lower support portions. Thus, thermal deformation of the casing is suppressed, and a suitable clearance can be maintained between the casing and a turbine.

Abstract: A turbine blade includes an airfoil portion having a hollow portion extending along the blade height direction and film cooling holes arranged along the blade height direction, and an insert disposed in the hollow portion along the blade height direction and having impingement cooling holes. The insert includes a first high-density opening region having a higher density of the impingement cooling holes than in other surface regions of the insert. The geometric center of the first high-density opening region is positioned on the suction side of the airfoil portion in the leading-edge-to-trailing-edge direction and on the outer side of the midpoint of the airfoil portion in the blade height direction. The film cooling holes includes upstream film cooling holes disposed in the suction surface of the airfoil portion at a position corresponding to the first high-density opening region or at a position closer to a leading edge than the position.

Abstract: A state quantity-acquiring unit acquires values of a plurality of state quantities at a certain timing associated with an object device. A state quantity-predicting unit predicts allowable ranges of the values of the plurality of state quantities after a predetermined time has elapsed on the basis of the acquired values of the plurality of state quantities. A display information-generating unit generates display information in which a predicted-value figure which is a figure with a shape corresponding to the allowable ranges of the values of the plurality of state quantities is disposed in a coordinate space with the plurality of state quantities as axes.

Abstract: Provided is a solar thermal power generation facility that includes: a compressor; a medium heating heat receiver that receives sunlight and heats a compressed medium from the compressor; a turbine that is driven by the compressed medium heated by the medium heating heat receiver; a power generator that generates electric power by driving of the turbine; and a tower that supports these components. The compressor, the turbine, and the power generator are formed as arranged devices. A plurality of the arranged devices are aligned in a vertical direction.

Abstract: A turbine nozzle includes a plurality of blades arranged so as to form a tapered flow passage between each two adjacent blades. A suction surface of each blade includes a curved surface, and a throat of the flow passage is formed between the curved surface of one blade and a trailing edge of the other blade of the two adjacent blades at a throat position. An upstream end of the curved surface is positioned upstream of the throat position, and a downstream end of the curved surface is positioned downstream of the throat position.

Abstract: A pin insertion hole is formed in an outer member, and a pin groove is formed in an inner member. A positioning device includes a pin entering the pin insertion hole and the pin groove, and a groove contact member coming in contact with a groove side surface of the pin groove. In one member of the pin and the groove contact member, a position restriction concave portion recessed in a direction away from the other member is formed in a portion facing the other member. In the other member, a claw portion entering the position restriction concave portion and coming into contact with the position restriction concave portion is formed as a portion of the other member is plastically deformed.

Abstract: A combustion burner includes a plurality of splitters (5), (6), (7) configured to divide a fuel gas flow by a widened portion where a width of the widened portion increases as the widened portion extends in the direction of the fuel gas flow. The splitters include: slitted splitters (5), (6) configured to slits (SL) at a downstream end in the fuel gas flow; and non-slitted splitters (7) configured to adjacently to the slitted splitters (5), (6), each of the non-slitted splitters (7) configured to the widened portion at a downstream end in the fuel gas flow, and configured to a fixed width in a direction of the longitudinal axis.

Abstract: A steam turbine (ST) includes a rotor (11) which is rotatable around an axis (Ar), an inner casing (21) surrounding the rotor (11) from an outer peripheral side, an outer casino (30) surrounding the rotor (11) and the inner casing (21) and defining an exhaust chamber between the inner casing (21) and the outer casing (30), the steam being exhausted to the exhaust chamber (30s), and a flow guide (27) which has a tubular shape and is installed on one end portion of the inner casing 21 in an axial direction (Da) in the exhaust chamber (30s) to guide the steam discharged from the rotor (11). The flow guide (27) has a turning surface (RA) which is connected to an outer peripheral surface (27A) and turns a fluid flowing along the outer peripheral surface (27A) toward the other side in the axial direction (Da).

Abstract: A method for installing a spray pipe, including an insertion step of inserting a spray pipe from an opening portion, a positioning step of positioning the spray pipe such that an installation surface of a leg portion faces a supporting surface of a supporting portion, a provisional tightening step of provisionally tightening a first fastening portion to couple an attachment flange with the opening portion, an adjusting step of adjusting the height of the installation surface relative to the supporting surface such that an axis along which a pipe portion extends coincides with the horizontal plane, in the provisionally tightened state resulting from the provisional tightening step, a coupling step of coupling the leg portion to the supporting portion by means of a second fastening portion, after the adjusting step, and a final tightening step of performing a final tightening of the first fastening portion after the coupling step.

Abstract: A metal powder production apparatus capable of easily preventing an oxide in a molten metal from entering a liquid nozzle is provided. The metal powder apparatus includes a first crucible heating and melting a melting material to generate molten metal, a first heating device heating and melting the metal in the first crucible, a stopper opening and closing a first opening provided on the bottom surface of the first crucible, an introduction pipe having one end connected to the first opening of the first crucible and leading a molten metal in the first crucible to the outside of the first crucible, a second crucible receiving the molten metal flowing out of the introduction pipe, a second heating device heating the second crucible, and a liquid nozzle provided on the bottom surface of the second crucible.

Abstract: A gas turbine includes: a first cavity inside a stationary body and supplied with cooling air; a second cavity between the stationary body and a rotating body; a first cooling passage between the first and second cavities and having a swirl flow guide nozzle therein by which the cooling air of the first cavity is supplied to the second cavity while being swirled along a rotation direction of the rotating body; a second cooling passage in the rotating body, in communication with the second cavity, and supplied with the cooling air of the second cavity; and a flow regulating passage, different from the first cooling passage, between the first cavity and the second cavity and through which the cooling air is supplied from the first cavity to the second cavity, wherein the flow regulating passage has a flow regulator for regulating a flow rate of the cooling air.