Abstract: A flow guide is provided with a flange, a guide plate, and an inside member. A ring groove which is recessed to the radially outer side from an inner circumferential surface and which extends in a circumferential direction based on the axis is formed in the flange. The inside member includes a fitted portion which enters the ring groove, and a cover portion which faces the inner circumferential surface of the flange in the radial direction. The cover portion covers at least parts of the inner circumferential surface of the flange and an inner circumferential surface of the guide plate that face a tip end of a moving blade in the radial direction. The cover portion is formed from a material having a higher erosion resistance with respect to steam and steam drain than the flange.

Abstract: A flow guide is provided with a flange, a guide plate, and an inside member. A ring groove which is recessed to the radially outer side from an inner circumferential surface and which extends in a circumferential direction based on the axis is formed in the flange. The inside member includes a fitted portion which enters the ring groove, and a cover portion which faces the inner circumferential surface of the flange in the radial direction. The cover portion covers at least parts of the inner circumferential surface of the flange and an inner circumferential surface of the guide plate that face a tip end of a moving blade in the radial direction. The cover portion is formed from a material having a higher erosion resistance with respect to steam and steam drain than the flange.

Abstract: An axial-flow exhaust turbine is capable of discharging water drops collected from a steam passage. The axial-flow exhaust turbine includes: a steam passage in which rotor blades and stator blades are arranged in rows; an exhaust chamber for discharging steam from the steam passage in a turbine axial direction, the exhaust chamber being positioned at a downstream side of the steam passage; a casing including the steam passage and the exhaust chamber inside the casing; an inner partition wall positioned on an inner circumferential side of the casing so as to face the exhaust chamber; and a drain flow channel defined between the casing and the inner partition wall. The water drops collected from the steam passage can pass through the drain flow channel.

Abstract: An object is to provide an axial-flow exhaust turbine capable of discharging a drain from a steam passage smoothly, reducing cost upon replacement, and saving space. An axial-flow exhaust turbine includes: a steam passage in which rotor blades and stator blades are arranged in rows; an exhaust chamber for discharging steam from the steam passage in a turbine axial direction disposed at a downstream side of the steam passage; a casing including the steam passage and the exhaust chamber inside the casing; an inner partition wall disposed on an inner circumferential side of the casing so as to face the exhaust chamber; and a drain flow channel formed between the casing and the inner partition wall. A drain collected from the steam passage can pass through the drain flow channel.

Abstract: The bearing device has a support ring positioned around a rotating shaft and a plurality of bearing pads provided between the rotating shaft and the support ring and configured to support the rotating shaft. Some of the plurality of bearing pads are positioned at a lower side of the rotating shaft, and a key member is installed between the support ring and a carrier ring supporting the plurality of bearing pads. The key member is inserted therebetween in a tangential direction of an outer circumference of the carrier ring and is configured to perform positioning of the plurality of bearing pads and the support ring in a radial direction.

Abstract: A steam turbine has an outer casing that is divided into an upper casing and a lower casing (a lower block) on a horizontal plane through which a rotor passes. The upper casing is divided into a middle block having a through hole and an upper block having a top panel, that is, into a portion including at least a part of the through hole through which the rotor penetrates. With this configuration, machining of a bellows fitting unit provided in an end-plate cone portion can be performed in existing facilities such as a factory, in a state that the lower block and the middle block are assembled without assembling the upper block.

Abstract: The bearing device is provided with: a support ring positioned around a rotating shaft; and a plurality of bearing pads provided between the rotating shaft and the support ring and configured to support the rotating shaft, wherein some of the plurality of bearing pads are positioned at a lower side of the rotating shaft, and a key member is installed between the support ring and a carrier ring supporting the plurality of bearing pads, wherein the key member is inserted therebetween in a tangential direction of an outer circumference of the carrier ring and is configured to perform positioning of the plurality of bearing pads and the support ring in a radial direction.

Abstract: In a steam turbine according to a first embodiment, an outer casing 11 is divided into an upper casing 31 and a lower casing (a lower block) 32 on a horizontal plane through which a rotor passes, and the upper casing 31 is divided into a middle block 33 having a through hole 20 and an upper block 34 having a top panel 31a, that is, into a portion including at least a part of the through hole 20 through which the rotor penetrates and other parts. With this configuration, machining of a bellows fitting unit provided in an end-plate cone portion 21A can be performed in existing facilities such as a factory, in a state that the lower block 32 and the middle block 33 are assembled without assembling the upper block 34.

Abstract: A power transmission belt includes a belt body having a tooth portion and made of a rubber stock of hydrogenated nitrile having a Mooney viscosity at 100.degree. C. of at least 90, whereby the internally generated heat of the belt body during use in a high temperature environment is suppressed. A cashew-modified phenol resin layer is formed at the outermost layer of the cords for bonding with the belt body. The cords are embedded in the longitudinal direction of the belt body.

Abstract: A power transmission belt comprised of a belt body having a tooth portion and made of a rubber stock of hydrogenated nitrile having a Mooney viscosity at 100.degree. C. of at least 90, whereby the internally generated heat of the belt body during use in a high temperature environment is suppressed. A cashew-modified phenol resin layer is formed at the outermost layer of the cords for bonding with the belt body. The cords are embedded in the longitudinal direction of the belt body.

Abstract: A .Iadd.cord and fabric for a .Iaddend.power transmission belt comprised of a belt body having a tooth portion and made of a rubber stock of hydrogenated nitrile having a Mooney viscosity at 100.degree. C. of at least 90, whereby the internally generated heat of the belt body during use in a high temperature environment is suppressed. A cashew-modified phenol resin layer is formed at the outermost layer of the cords .Iadd.and fabric .Iaddend.for bonding with the belt body. The cords are embedded in the longitudinal direction of the belt body.