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Mitsubishi Hitachi Power Systems Ltd patents


Recent patent applications related to Mitsubishi Hitachi Power Systems Ltd. Mitsubishi Hitachi Power Systems Ltd is listed as an Agent/Assignee. Note: Mitsubishi Hitachi Power Systems Ltd may have other listings under different names/spellings. We're not affiliated with Mitsubishi Hitachi Power Systems Ltd, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "M" | Mitsubishi Hitachi Power Systems Ltd-related inventors


Method and device for wet flue-gas desulfurization

In order to heighten the recovery of activated carbon by separation in a flotation device and stably inhibit mercury from being re-emitted in a desulfurization/absorption tower and from coming into gypsum to be recovered, a method is provided, the method comprising: adding activated carbon to an absorption liquid to be... Mitsubishi Hitachi Power Systems Ltd

Flue gas treatment apparatus

The disclosure relates to suppressing wear of a denitration catalyst due to ash particles having diameters greater than or equal to 100 μm. A flue gas treatment apparatus includes a denitration apparatus having a denitration catalyst, which reduces nitrogen oxides in flue gas exhausted from the coal combustion boiler, and... Mitsubishi Hitachi Power Systems Ltd

Steam turbine rotor blade and manufacturing steam turbine rotor blade

A steam turbine rotor blade achieving both abrasion resistance and reliability, and a method for manufacturing a steam turbine rotor blade capable of obtaining such a steam turbine rotor blade are provided. A steam turbine rotor blade according to the invention is characterized by including a blade base material and... Mitsubishi Hitachi Power Systems Ltd

Grinding roller and mill

A grinding roller is configured so that the fatigue strength of a roller housing can be ensured, and product life can thus be ensured. The grinding roller includes: a roller housing; a roller main body; a pressing plate; a tab hole; and a tab. A line at which fastening stress... Mitsubishi Hitachi Power Systems Ltd

Securing device, steam turbine, and rotary machine manufacturing method and assembly method

A securing device having a radial pin which is inserted into a through-hole having an outside hole and an inside hole and penetrating an outside member in the radial direction of a rotary machine, the outside hole being open to the outside of the outside member in the radial direction... Mitsubishi Hitachi Power Systems Ltd

Support device, turbine, assembling rotary machine, and disassembling rotary machine

A support device is provided with: a support member having a body disposed in a recess provided in the upper surface of the lower half of an outer member, and a protrusion provided on the body, the protrusion protruding toward the lower half of an inner member from a front... Mitsubishi Hitachi Power Systems Ltd

Gas turbine manufacturing method

In a gas turbine manufacturing method for manufacturing a derivative gas turbine having a different cycle from a reference gas turbine including a reference compressor, a compressor of the derivative gas turbine is designed to add at least one additional stage further on an upstream side than a last stage... Mitsubishi Hitachi Power Systems Ltd

Segment for sealing device, and turbine rotor and turbine comprising same

A segment 31 for a sealing device according to the present invention is used in a sealing device 28 provided between a turbine rotor 12 and a stationary body 14 that covers the turbine rotor 12. The segment 31 for the sealing device is characterized by including a base 32... Mitsubishi Hitachi Power Systems Ltd

Gas turbine

In a gas turbine in which a seal member seals a gap between a transition piece and a nozzle end wall in a turbine first stage, the transition piece and the nozzle end wall has a seal groove. The seal member includes a hook portion that slides in the turbine... Mitsubishi Hitachi Power Systems Ltd

Turbine

A turbine includes a turbine rotor, a stationary body that covers the turbine rotor, and a diffuser provided on an outlet side of the stationary body. Last-stage moving blades of the turbine rotor include blade sections and covers provided at distal ends of the blade sections. The diffuser is formed... Mitsubishi Hitachi Power Systems Ltd

Boiler, steam-generating plant provided with same, and operating boiler

A boiler including one or more evaporators, an economizer, and a low-temperature heat exchanger. The economizer is located on a downstream side of the most downstream evaporator which is an evaporator at the most downstream side among the one or more evaporators. The low-temperature heat exchanger is located on the... Mitsubishi Hitachi Power Systems Ltd

Cement solidification device for waste and method therefor, and zero-liquid discharge air pollution control system and method therefor

A cement solidification device for waste includes a slurrying vessel 14 that dissolves and slurries waste 11 containing harmful substances and deliquescent compounds in solvent water 12 to obtain slurried material 13; an iron-based additive supply unit 16 that adds an iron-based additive 15 to the slurrying vessel 14; a... Mitsubishi Hitachi Power Systems Ltd

Mill roller and pulverizer

A mill roller (6) is provided with a roller main body (62) that rotates about an inclined axis line (O2) and has an outer peripheral surface (64) for pulverizing an object to be crushed against the mill table (4). The outer peripheral surface (64) is convex outward in a radial... Mitsubishi Hitachi Power Systems Ltd

Compressor rotor, compressor, and gas turbine

A rotor shaft has: an inlet flow passage through which gas inside a gas compression flow passage flows into an outer cavity of a downstream-side cavity group; a radial flow passage that provides communication between the outer cavity and an axial communication cavity of the downstream-side cavity group; an axial... Mitsubishi Hitachi Power Systems Ltd

Blade and gas turbine including the same

A blade has a flow passage forming plate that defines a part of a combustion gas flow passage. The flow passage forming plate has a plurality of back channels that open in a back end surface. A density of openings of the plurality of back channels in a middle region... Mitsubishi Hitachi Power Systems Ltd

Seal device for turbine, turbine, and thin plate for seal device

A seal device for a turbine includes: a plurality of thin plates arranged along an outer peripheral surface of the rotor, each of the thin plates including a root portion disposed on an outer side in a radial direction of the rotor and supported on a stationary part of the... Mitsubishi Hitachi Power Systems Ltd

Boiler

The boiler (1) according to an aspect of the present invention is provided with a boiler main body (3) and a steel support frame (5) that suspends and supports the boiler main body (3). The boiler main body (3) is provided with: a furnace wall (11) composed of water pipes... Mitsubishi Hitachi Power Systems Ltd

Combustion burner and boiler provided with same

To provide: a fuel nozzle (51) that can inject fuel gas in which fuel and air are mixed; a flame stabilizer (54) provided on an axial center side near a tip end of the fuel nozzle (51); and a casing member (55) that partitions an inner flow channel in which... Mitsubishi Hitachi Power Systems Ltd

Combustion burner and boiler

Provided is a combustion burner including: a fuel nozzle (61) which ejects a fuel gas that is a mixture of fuel and air; a combustion air nozzle (62) which ejects air from an outer side of the fuel nozzle (61); first members (71) which are arranged inside the fuel nozzle... Mitsubishi Hitachi Power Systems Ltd

Gas turbine combustor

The present invention provides a multi-can type gas turbine combustor including a plurality of combustors that mix and burn fuel and the air, the combustors being connected by a crossfire tube assembly. The gas turbine cools the crossfire tube assembly without lowering the temperature of a combustion exhaust gas passing... Mitsubishi Hitachi Power Systems Ltd

Welding device, welding method, and turbine blade

A welding device including a cylindrical powder nozzle (201) that supplies a powder gas containing a powder welding material toward a laser beam irradiation position of a base material and a cylindrical shield nozzle (202) that is arranged coaxially so as to cover an outer peripheral surface of the powder... Mitsubishi Hitachi Power Systems Ltd

Combustor cooling panel, transition piece and combustor including the same, and gas turbine including combustor

A combustor cooling panel has a first channel and a second channel through which a cooling medium flows. Relative to an end zone in a longitudinal direction of the first channel, the second channel has: an overlapping zone that overlaps the end zone in an extension direction of the end... Mitsubishi Hitachi Power Systems Ltd

Thermal barrier coating, turbine member, gas turbine, and manufacturing thermal barrier coating

A thermal barrier coating (100) includes a heat-resistant alloy substrate which is used in a turbine member and a ceramic layer (300) which is formed on the heat-resistant alloy substrate and in which vertical cracks (C) extending in a thickness direction are dispersed in a surface direction and a plurality... Mitsubishi Hitachi Power Systems Ltd

Turbine and gas turbine

A flow path width at a hub endwall of a blade main body decreases toward a minimum width from a leading edge, and increases toward a trailing edge from the minimum width, the flow path width at a reference blade height aparted toward a tip side from the hub endwall... Mitsubishi Hitachi Power Systems Ltd

Seal device for turbine, turbine, and thin plate for seal device

A seal device for a turbine is disposed around a rotor so as to separate a high-pressure space and a low-pressure space and includes: a plurality of thin plates arranged along an outer peripheral surface of the rotor. Each of the thin plates has a thin-plate tip surface facing the... Mitsubishi Hitachi Power Systems Ltd

Combustion burner and boiler

In this combustion burner and boiler, interference of ignition in a flame stabilizer is suppressed and flame stabilizing performance is improved by providing: a fuel nozzle which ejects a fuel gas that is a mixture of pulverized coal and air; a combustion air nozzle which ejects a fuel gas combustion... Mitsubishi Hitachi Power Systems Ltd

Production thermal spray particles, turbine member, gas turbine, and thermal spray particles

The present invention provides a production method for thermal spray particles forming a ceramic layer in which vertical cracks extending in a thickness direction are dispersed in a surface direction and which includes a plurality of pores inside. The production method for thermal spray particles includes adjusting a solid content... Mitsubishi Hitachi Power Systems Ltd

Bolt fall-out preventing structure

A bolt fall-out preventing structure includes: a first member, a first hole (13) being formed in the first portion (14) and the second portion (15); a first bolt member including a first head portion inserted into the first hole of the first member and disposed on the second portion, the... Mitsubishi Hitachi Power Systems Ltd

Condenser

To provide a condenser including a housing formed in a hollow shape and provided with a steam inlet and a condensate outlet, inlet water chambers and outlet water chambers provided at respective ends of the housing, a large number of heat-transfer tubes that connect the inlet water chambers and the... Mitsubishi Hitachi Power Systems Ltd

Turbine

A turbine is provided with a seal device. The seal device includes: at least one step surface disposed in a region of an outer peripheral surface of a rotor facing a shroud of a stationary vane in the radial direction of the rotor, the at least one step surface facing... Mitsubishi Hitachi Power Systems Ltd

State determining device, operation controlling device, gas turbine, and state determining method

A state determining device determines a state of a gas turbine connected to an electric generator. The gas turbine includes a compressor that compresses intake air into compression air, a fuel supply device that supplies fuel, a combustor that mixes the compression air supplied from the compressor and the fuel... Mitsubishi Hitachi Power Systems Ltd

Combined cycle plant, control device thereof, and steam turbine startup method

To provide a combined cycle plant, a control device thereof, and a steam turbine startup method that are aimed at improving the operability of a combined cycle plant by allowing a quick change of the output. A combined cycle plant is provided with: a gas turbine having a compressor, a... Mitsubishi Hitachi Power Systems Ltd

Moving blade and turbine using moving blade

A moving blade 21d is disposed in a last stage closest to a diffuser 10 among a plurality of stages of a turbine 9 including a turbine rotor 12 and a stationary body 14. The diffuser 10 is connected to an outlet side of the stationary body 14. A distal... Mitsubishi Hitachi Power Systems Ltd

Heat exchanger and controlling heat exchanger

A heat exchanger includes a heat recovery unit that causes a heat medium to recover heat from flue gas through first heat exchange by bringing the flue gas into contact with a fin tube; a reheater including a preheating unit configured to preheat flue gas through second heat exchange by... Mitsubishi Hitachi Power Systems Ltd

Nacelle anti ice system

A cooling system includes: a high pressure bleed line configured to bleed high pressure compressed air from a first bleed position of a compressor and to send the air to a first hot part; a low pressure bleed line configured to bleed low pressure compressed air from a second bleed... Mitsubishi Hitachi Power Systems Ltd

01/11/18 / #20180012041

Communication connection apparatus and communication system

A communication connection apparatus controls connection of a communication line between a first and second communication devices comprising: a first connection port for the first communication device, including a first transmission unit through which a signal from the first communication device passes and a first reception unit through which a... Mitsubishi Hitachi Power Systems Ltd

01/04/18 / #20180003386

Fuel nozzle of gas turbine combustor and manufacturing method thereof, and gas turbine combustor

To provide a fuel nozzle for a gas turbine combustor, offering favorable durability and strength reliability. In a fuel nozzle for a gas turbine combustor, jetting fuel into a combustion chamber of the gas turbine combustor, the fuel nozzle is metallurgically and integrally bonded with a base plate that supports... Mitsubishi Hitachi Power Systems Ltd

01/04/18 / #20180001252

Method and device for treating nitroso compound

A method for decomposing a nitroso compound, comprising: adding an aqueous solution containing hydrogen halide to a liquid to be treated that contains the nitroso compound in such a manner that the hydrogen halide is present in an amount of 2 mol or more and 20 mol or less per... Mitsubishi Hitachi Power Systems Ltd

12/28/17 / #20170370235

Transition piece, combustor provided with same, and gas turbine provided with combustor

A plurality of cooling passages extending in an axial direction are formed in a transition piece so as to be aligned in a circumferential direction and the axial direction. One or more downstream side passages are formed in a downstream side region (Rd) within one circumferential region. One or more... Mitsubishi Hitachi Power Systems Ltd

12/28/17 / #20170370237

Turbine

A seal device of a turbine includes: at least one step surface disposed on a radially outer surface of a rotor blade facing a first radial-directional gap or on an outer peripheral surface of a rotor facing a second radial-directional gap, the at least one step surface facing upstream in... Mitsubishi Hitachi Power Systems Ltd

12/28/17 / #20170370476

Rotary machine

A rotary machine includes a seal device capable of restricting a flow of a fluid in a clearance between a stationary member and a rotational member. The seal device includes a pressure loss element mounted to the stationary member, a first non-contact type seal protruding from the rotational member toward... Mitsubishi Hitachi Power Systems Ltd

12/21/17 / #20170362955

Piping system cleaning method, piping system, and steam turbine plant

A piping system of a steam turbine plant is provided with: steam piping connected to a steam turbine; bypass piping which branches from the steam piping at a branching portion and which is connected to a condenser; a steam check valve provided between the branching portion of the steam piping... Mitsubishi Hitachi Power Systems Ltd

12/21/17 / #20170362961

Fixing device, rotary machine, manufacturing rotary machine, assembling rotary machine, and disassembling rotary machine

A fixing device fixes a relative position in a rotational direction of an outer member and an inner member of a stationary body of the rotary machine, and includes: a radial pin that is inserted into a through hole passing through the outer member in a radial direction of a... Mitsubishi Hitachi Power Systems Ltd

12/07/17 / #20170350267

Shaft sealing mechanism

A shaft sealing mechanism (11) that partitions an annular space (14) that is formed between a fixed part (12) and a rotating shaft (13) into a high-pressure-side region and a low-pressure-side region, that obstructs the flow of a fluid (G), and that is provided with: a plurality of annularly laminated... Mitsubishi Hitachi Power Systems Ltd

12/07/17 / #20170350510

Shaft seal mechanism

A shaft seal mechanism (11) that blocks a fluid (G) flowing within a ring-shaped space (14) is equipped with: a ring-shaped seal housing (21) disposed on a fixed section (12); a plurality of thin-plate seal pieces (22) that are secured to the seal housing (21), are in sliding contact with... Mitsubishi Hitachi Power Systems Ltd

11/30/17 / #20170342337

Slag discharge apparatus and slag discharge method

A slag crusher (20) is provided in a combustor of a gasifier (10) for gasifying a carbonaceous feedstock, and discharges falling slag generated in the combustor from the gasifier (10). The slag crusher (20) is provided with: a screen (22) provided so as to intersect with the direction in which... Mitsubishi Hitachi Power Systems Ltd

11/30/17 / #20170342909

Shaft sealing mechanism

A shaft sealing mechanism (11) that partitions an annular space (14) that is formed between a fixed part (12) and a rotating shaft (13) into a high-pressure-side region and a low-pressure-side region, that obstructs the flow of a fluid (G), and that is provided with: a plurality of annularly laminated... Mitsubishi Hitachi Power Systems Ltd

11/16/17 / #20170328232

Clearance-control-type seal structure

A clearance-control-type seal structure including a plurality of arc-shaped grooves (23) formed side by side in the axial direction with respect to an inner circumferential surface of a housing (22) of a turbine; and abradable seal rings (11, 12) having fitting parts (11a, 12a) that are fitted into the grooves... Mitsubishi Hitachi Power Systems Ltd

11/16/17 / #20170328238

Steam turbine casing

This steam turbine casing is provided with: a lower half part having a plurality of curved leg parts projecting horizontally around a lower half part body; an upper half part bonded onto the lower half part; a cover member fixed to an upper surface part of the curved leg parts;... Mitsubishi Hitachi Power Systems Ltd

11/16/17 / #20170328564

Exhaust duct and boiler

In an exhaust duct and a boiler, there are provided: a flue gas duct through which flue gases pass; a first hopper provided to the flue gas duct, the first hopper collecting PA in the flue gases; a low-repulsion section provided to the upstream side or the downstream side of... Mitsubishi Hitachi Power Systems Ltd

11/09/17 / #20170320064

Vertical roller mill

Provided is a vertical roller mill equipped with a rotary classifier for causing a plurality of classification blades provided above a rotary table and positioned around an axis to rotate about the axis, wherein: of a solid fuel pulverized by a roller, the rotary classifier guides solid fuel fine powder... Mitsubishi Hitachi Power Systems Ltd

11/09/17 / #20170320066

Solid fuel pulverizing device and controlling same

Provided is a solid fuel pulverizing device (100) provided with: a ventilation unit (30) configured to ventilate an interior of a housing (11) with primary air for supplying a solid fuel pulverized by a roller (13) to a classifier (16); a pressure detector (50) configured to detect an internal pressure... Mitsubishi Hitachi Power Systems Ltd

11/09/17 / #20170320124

Method for producing a rifled tube

where, W is a width of a groove bottom surface of the helical groove; A is a maximum diameter of the plug; B is a minimum diameter of the plug; N is a number of the second helical ribs; S is the width of the groove bottom surface; and M... Mitsubishi Hitachi Power Systems Ltd

10/26/17 / #20170306793

Main steam valve and steam turbine

A main steam valve includes a cylindrical guide centered about an O-axis, a valve body disposed inside the guide so as to be slidable in the O-axis direction, a valve shaft on which the valve body moves in the O-axis direction between open and closed positions, and a casing having... Mitsubishi Hitachi Power Systems Ltd

10/26/17 / #20170307218

Combustor and gas turbine comprising same

A combustor includes a nozzle, a burner cylinder surrounding the outer circumference of the nozzle, and an outside flow path cylinder surrounding the outer circumference of a downstream end portion of the burner cylinder. A purge air flow path through which air flows is formed between the inner circumferential side... Mitsubishi Hitachi Power Systems Ltd

10/26/17 / #20170307219

Combustor and gas turbine

A combustor (3) includes a plurality of first burners extending along an axis (P) and arranged at intervals in the circumferential direction, a base plate (31) having support openings configured to support the plurality of first burners and a plurality of through-holes (34) through which base plate air flows toward... Mitsubishi Hitachi Power Systems Ltd

10/19/17 / #20170297054

Method of forming sprayed coating, high-temperature component for turbine, turbine, masking pin for forming sprayed coating, and masking member

A method of forming a sprayed coating includes preparing a spray target member having a surface on which openings of first ends of holes are formed, preparing a plurality of masking pins each of which comprises metal, and inserting each of the masking pins into a corresponding one of the... Mitsubishi Hitachi Power Systems Ltd

10/19/17 / #20170298468

Method for manufacturing shaft body

A method for manufacturing a shaft body by welding a plurality of shaft members together and forming the shaft body, the method including: a primary tempering step of subjecting a range in at least one of the shaft members, which is in the vicinity of an end of another shaft... Mitsubishi Hitachi Power Systems Ltd

10/19/17 / #20170299182

Combustor and gas turbine comprising same

A sound attenuator includes part of a plate forming a combustion liner and an acoustic cover defining, in conjunction with this part of the plate, a space on the outer circumferential side of the combustion liner. A restrictor that reduces a gas flow path is provided inside the combustion liner.... Mitsubishi Hitachi Power Systems Ltd

10/12/17 / #20170292397

Seal member

A seal member (7) is provided between a combustor disposed around a rotor axis and a vane disposed on the downstream side in an axial direction and defining a part of a combustion gas flow passage (Pg) through which combustion gas (G) flows, and seals a gap between the combustor... Mitsubishi Hitachi Power Systems Ltd

10/12/17 / #20170292458

Flow volume ratio calculation device, control device equipped with same, gas turbine plant equipped with this control device, flow volume ratio calculation method, and fuel line control method

A gas turbine includes: multiple fuel systems; a combustor that combusts fuels from the multiple fuel systems in compressed air to generate combustion gas; and a turbine that is driven by the combustion gas. A flow volume ratio calculation device which calculates the flow volume ratio of the fuels flowing... Mitsubishi Hitachi Power Systems Ltd

10/12/17 / #20170292705

Combustor and gas turbine

A combustor according to the present invention is provided with: a pilot burner (15) disposed along an axis (P); a plurality of premixing burners (16), each of which has a premixing swirler cylinder (19) and a premixing nozzle (20) disposed inside the premixing swirler cylinder (19) and that are disposed... Mitsubishi Hitachi Power Systems Ltd

10/12/17 / #20170292706

Combustion burner, combustor, and gas turbine

A combustion burner includes a nozzle, a swirl vane having a fuel injection hole, the swirl vane being disposed in an air flow passage of an annular shape extending along an axial direction of the nozzle around the nozzle, and a partition plate having an annular shape and partitioning at... Mitsubishi Hitachi Power Systems Ltd

10/12/17 / #20170292707

Combustor and gas turbine

A combustor including a combustor main body having a transition piece that defines a flow channel therein, and a combustor basket inserted in the transition piece from an upstream side of the flow channel that defines a gap through which a film air is sent with an inner peripheral surface... Mitsubishi Hitachi Power Systems Ltd

10/05/17 / #20170284209

Turbine rotor assembly, turbine, and rotor blade

A turbine rotor assembly includes a rotor shaft and rotor blades. The rotor shaft includes two protrusions, two bearing surfaces, two first facing surfaces, and two second facing surfaces positioned on the outer side of the first facing surfaces. The blade root section of each of the rotor blades includes... Mitsubishi Hitachi Power Systems Ltd

Patent Packs
10/05/17 / #20170284218

Seal structure

A seal structure includes: a first member and a second member disposed so as to face a combustion gas flow passage; a third member disposed on the outer side of the combustion gas flow passage; a heat-resistant coating formed on at least one of a first end face and a... Mitsubishi Hitachi Power Systems Ltd

10/05/17 / #20170284225

Gas turbine exhaust member, and exhaust chamber maintenance method

In a gas turbine exhaust member and an exhaust chamber maintenance method, the gas turbine exhaust member is provided with: an inside diffuser that forms a tubular shape and is divided into multiple parts in the circumferential direction; a first seal housing that forms a tubular shape and is integrally... Mitsubishi Hitachi Power Systems Ltd

10/05/17 / #20170284228

Steam turbine plant

Provided are a main steam piping connecting a steam generator and a steam turbine, a bypass piping branched from the main steam piping and bypassing the steam turbine, a bypass valve provided in the bypass piping, a warming piping branched from the bypass valve, a warming valve provided in the... Mitsubishi Hitachi Power Systems Ltd

10/05/17 / #20170284307

Gas turbine, combined cycle plant, and activation gas turbine

A gas turbine provided with: an air cooler that subjects compressed air extracted from a compressor to heat exchange and supplies the cooled compressed air to a cooling system of a rotor system in a turbine; an air cooler bypass line that bypasses the compressed air introduced into the air... Mitsubishi Hitachi Power Systems Ltd

10/05/17 / #20170284308

2-shaft gas turbine, and the control opening degree of inlet guide vane of the gas turbine

A 2-shaft gas turbine has a controller which controls the opening degree of an air inlet guide vane to adjust the inlet mass flow rate to a compressor. The air inlet guide vane control unit includes a first control unit that adjusts the opening degree of the inlet guide vane... Mitsubishi Hitachi Power Systems Ltd

10/05/17 / #20170284670

Combustor and gas turbine

The present invention is a combustor provided with a combustor transition pipe connected to a turbine while interposing a transition pipe seal in between, including a flange portion provided at an end portion on a downstream side in a fluid flow direction of the combustor transition pipe, the flange portion... Mitsubishi Hitachi Power Systems Ltd

10/05/17 / #20170284671

Gas turbine combustor

In a gas turbine combustor 3 of the present invention, an air hole plate 20 includes a center air hole group 51 configured from a plurality of air holes 51A and 51B and a plurality of outer circumferential air hole groups 52 configured from a plurality of air holes 52A,... Mitsubishi Hitachi Power Systems Ltd

10/05/17 / #20170284672

Combustor and gas turbine

A combustor including a transition piece that defines a flow channel therein; a combustor basket inserted in the transition piece from an upstream side of the flow channel that sends a combustion gas through the flow channel and defines a gap through which a compressed air is sent with an... Mitsubishi Hitachi Power Systems Ltd

10/05/17 / #20170284680

Gas turbine combustor

A plurality of gas turbine combustors having a cross fire tube assembly that connects adjacent combustors. The combustors include combustion chambers having annular combustion air passages on outer peripheries thereof. The cross fire tube assembly has a dual pipe configuration including an inner tube that connects the combustion chambers of... Mitsubishi Hitachi Power Systems Ltd

09/28/17 / #20170274386

Rotary classifier and vertical mill

The present invention improves the even distribution of a powder to a pulverized coal pipe. A rotary classifier including: a rotary shaft rotatably supported around a rotational axis extending in a vertical direction; a frame body supported by the rotary shaft and including an opening on the outer periphery of... Mitsubishi Hitachi Power Systems Ltd

09/21/17 / #20170268350

Steam turbine rotor blade, manufacturing steam turbine rotor blade, and steam turbine

A steam turbine rotor blade for forming a turbine rotor cascade of a steam turbine includes a rotor blade main body having a blade portion, a blade base portion and a first coupling portion, which has first facing surfaces, provided on opposite end sides of the blade portion, and a... Mitsubishi Hitachi Power Systems Ltd

09/14/17 / #20170260101

Method of producing thermal spray powder, manufacture apparatus of thermal spray powder, and thermal spray powder produced by the producing method

A method for producing a thermal spray powder includes: a preparing step of preparing a powder mixture containing a first particle made from zirconia-based ceramic containing a first additive agent and a second particle made from zirconia-based ceramic containing a second additive agent, the powder mixture having a 10% cumulative... Mitsubishi Hitachi Power Systems Ltd

09/14/17 / #20170260465

Powder transport device and char recovery device

This powder transport device comprises: transport pipe (11) that can transport powder by way of gravity by having a prescribed angle of inclination; a porous plate (12) that is disposed along the transport pipe (11) so as to divide a line cross section into a top section and bottom section... Mitsubishi Hitachi Power Systems Ltd

09/14/17 / #20170260767

Support structure

In a boiler support structure in which certain ones of seismic isolators are provided with a pullout countermeasure, the seismic isolators to be provided with the pullout countermeasure are individually identified according to whether the seismic isolator satisfies Formula (1) : NDn+NEQn>Ntn . . . Formula (1) , where NDn... Mitsubishi Hitachi Power Systems Ltd

09/14/17 / #20170260874

Journal bearing and rotary machine

A journal bearing includes: a rotation shaft which is rotatable about an axis; a bearing lower half portion which slidably supports an outer circumferential surface of the rotation shaft; a bearing upper half portion which supports an upper side half portion of the outer circumferential surface of the rotation shaft;... Mitsubishi Hitachi Power Systems Ltd

Patent Packs
09/14/17 / #20170260902

Power generation system

This power generation system is provided with: a gas turbine having a compressor, a combustor and a turbine; a first compressed air supply line that supplies compressed air, which has been compressed by the compressor, to the combustor; a solid oxide fuel cell (SOFC) having an air electrode and a... Mitsubishi Hitachi Power Systems Ltd

09/07/17 / #20170254225

Steam turbine plant

A steam turbine plant of the present invention includes a heat source device that heats a low temperature fluid by a heat source medium to obtain a high temperature fluid, a steam generating device that generates steam by heat exchange with the high temperature fluid, a steam turbine that is... Mitsubishi Hitachi Power Systems Ltd

09/07/17 / #20170254267

Combustor and gas turbine

A combustor including: a transition piece having a cylindrical shape and including an inlet of combustion gas at one end and an outlet of the combustion gas at the other end and configured to allow the combustion gas flowing from the inlet to flow out from the outlet so as... Mitsubishi Hitachi Power Systems Ltd

09/07/17 / #20170254282

Control device, system, control method, power control device, gas turbine, and power control method

Provided is a control device of a gas turbine including a compressor, a combustor, and a turbine. The control device executes load control of allowing an operation control point for operation control of a gas turbine to vary in response to a load of the gas turbine. The operation of... Mitsubishi Hitachi Power Systems Ltd

09/07/17 / #20170255177

Control parameter automatic-adjustment apparatus, control parameter automatic-adjustment method, and control parameter automatic-adjustment apparatus network

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... Mitsubishi Hitachi Power Systems Ltd

08/31/17 / #20170248020

Turbine blade

A turbine blade includes cooling passages formed inside the blade and extending in a blade height direction, blade surfaces on a suction side and a pressure side being covered with thermal barrier coating, a design point on a suction side being set on the blade surface on the suction side... Mitsubishi Hitachi Power Systems Ltd

08/31/17 / #20170250592

Rotating electric machine and defect detection rotating electric machine

The present invention provides a rotating electric machine and a method of detecting electric discharge (a defect detection method for a rotating electric machine), which are able to early detect vibration sparking between a stator winding and a stator core. A rotating electric machine of the present invention comprises a... Mitsubishi Hitachi Power Systems Ltd

08/24/17 / #20170241289

Maintenance gas turbine

An exhaust-side journal bearing for supporting a gas turbine rotor is disposed inside a bearing box. The bearing box is supported by a strut which extends inward from an exhaust casing, and a seal ring having an annular inner peripheral end is disposed on the bearing box. Executed during a... Mitsubishi Hitachi Power Systems Ltd

08/24/17 / #20170241295

Exhaust system and gas turbine

The present invention provides an exhaust system and a gas turbine. The exhaust system includes: an exhaust casing; an outer diffuser supported inside the exhaust casing; an inner diffuser disposed inside the outer diffuser to form an exhaust gas flow passage between the inner diffuser and the outer diffuser; a... Mitsubishi Hitachi Power Systems Ltd

08/24/17 / #20170241339

Combustor and gas turbine

A combustor having a plurality of nozzles (main nozzles) to supply fuel disposed, includes a water supplier that is connected to all or part of the plurality of nozzles to supply water to each of fuel pipes, wherein the water supplier varies a supply amount of water for each of... Mitsubishi Hitachi Power Systems Ltd

08/17/17 / #20170234135

Gas turbine

An axial-direction passage, a forced vortex passage, a first blade array passage, and a second blade array passage are formed in a rotor shaft of a turbine. Cooling air from an air extraction port of a compressor flows through the axial-direction passage which extends in an axial direction. The forced... Mitsubishi Hitachi Power Systems Ltd

08/10/17 / #20170226620

Heat shielding coating and turbine member

A heat shielding coating (11) includes a bond coat layer (12) as a metal coupling layer laminated on a base material (10), and a top coat layer (13) which is laminated on the bond coat layer (12) and includes zirconia-based ceramic, in which the top coat layer (13) has a... Mitsubishi Hitachi Power Systems Ltd

08/03/17 / #20170219211

Gas turbine combustor, gas turbine, control device, and control method

To provide a gas turbine combustor that can suppress a generation amount of NOx and maintain a flame holding property, while suppressing burn damage around a pilot nozzle including the pilot nozzle. A gas turbine combustor includes a pilot nozzle that can inject fuel F and cooling air A for... Mitsubishi Hitachi Power Systems Ltd

07/27/17 / #20170211409

Control device, system, and control method

A control device 14 of a gas turbine that compresses a suctioned air with a compressor to obtain compressed air, mixes a fuel supplied from a combustor with the compressed air to burn the fuel and the compressed air to obtain a combustion gas, operates a turbine with the generated... Mitsubishi Hitachi Power Systems Ltd

07/27/17 / #20170211414

Piping system, steam turbine plant, and cleaning piping system

A piping system of a steam turbine plant includes: a piping member including a first pipe section including a first passage, a second pipe section including a second passage, a connection section arranged between the first pipe section and the second pipe section and including a connection passage that connects... Mitsubishi Hitachi Power Systems Ltd

07/27/17 / #20170211421

Vane, gas turbine, ring segment, remodeling vane, and remodeling ring segment

A vane (18) has an airfoil section (19) that extends in a radial direction and an outer shroud (20) that is disposed on the radially outward side of the airfoil section (19), and is supported inside a casing by means of a vane support member (24). The outer shroud (20)... Mitsubishi Hitachi Power Systems Ltd

07/27/17 / #20170211424

Exhaust frame

An exhaust frame includes: an inner casing; an inner diffuser which defines, between the inner diffuser and the inner casing, an annular inner cooling passage connected to a final-stage wheel space; an outer diffuser which defines an exhaust passage between the outer diffuser and the inner diffuser; an outer casing... Mitsubishi Hitachi Power Systems Ltd

07/27/17 / #20170211427

Boiler, combined cycle plant, and steam cooling boiler

The purpose of the present invention is to decrease the loss of energy of flue gas when superheated steam is cooled and prevent heat efficiency from being decreased. A boiler is provided with: economizers (a medium-pressure economizer (13) and a high-pressure secondary economizer (18)) which heat water supplied by water... Mitsubishi Hitachi Power Systems Ltd

07/27/17 / #20170211900

Heat exchanger monitoring device and heat exchanger monitoring method

An anomaly monitoring device (10) is installed in an IGCC plant that experiences varying loads, and the device monitors a heat exchanger (20) that performs heat exchange between a carbon-containing fuel and a heat exchange medium flowing through a heat transfer tube (24). For each load on the IGCC plant,... Mitsubishi Hitachi Power Systems Ltd

07/20/17 / #20170204788

Gas turbine with an air bleeder tube

A gas turbine provided with an air bleeder tube (1) that, during startup, bleeds a portion of the compressed air of a compressor from the compressor and discharged the bled air into a cylindrical exhaust duct (20), wherein the air bleeder tube (1) is disposed at a portion that does... Mitsubishi Hitachi Power Systems Ltd

07/13/17 / #20170198594

Turbine vane, turbine, and turbine vane modification method

A turbine vane (3) includes: a vane body (21); a plate-like inner shroud (22) provided at a radially inner end of the vane body (21); and a plate-like outer shroud (23) provided at a radially outer end of the vane body (21). The vane body (21) includes a serpentine channel... Mitsubishi Hitachi Power Systems Ltd

07/13/17 / #20170198608

Exhaust hood and its flow guide for steam turbine

An exhaust hood for a steam turbine including a turbine rotor that is rotatable around a center axis and moving blades disposed on an outer periphery side of the turbine rotor includes: a bearing cone disposed on an inner periphery side and on a downstream side of the moving blades... Mitsubishi Hitachi Power Systems Ltd








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