利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

14 条记录 (耗时 0.014 秒)

    STEAM TURBINE COOLING UNIT
    1.
    发明申请
    STEAM TURBINE COOLING UNIT 审中-公开

    公开(公告)号：US20190003334A1

    公开(公告)日：2019-01-03

    申请号：US16063436

    申请日：2016-11-17

    申请人： Mitsubishi Hitachi Power Systems, Ltd.

    发明人： Takumi MATSUMURA ,  Toyoharu NISHIKAWA ,  Katsuhisa HAMADA

    IPC分类号： F01D25/12 ,  F01D9/06 ,  F01D25/24

    摘要： A steam turbine cooling unit for a steam turbine includes a coolant steam path provided to penetrate a casing (an outer casing and an inner casing) along a superheated steam supply tube to reach a gap; and a coolant steam supplying unit configured to supply coolant steam flowing through the coolant steam path along the superheated steam supply tube to reach the gap, and having a pressure higher than and a temperature lower than those of superheated steam to be supplied by the superheated steam supply tube. This configuration provides improved cooling efficiency.

    CASING POSITION ADJUSTMENT DEVICE
    4.
    发明申请
    CASING POSITION ADJUSTMENT DEVICE 审中-公开

    公开(公告)号：US20190093514A1

    公开(公告)日：2019-03-28

    申请号：US16089049

    申请日：2017-02-28

    申请人： Mitsubishi Hitachi Power Systems, Ltd.

    发明人： Takumi HORI ,  Hidekazu UEHARA ,  Kentarou SAEKI ,  Katsuhisa HAMADA

    IPC分类号： F01D25/26 ,  F01D25/28 ,  F01D25/16 ,  F01D19/00

    摘要： In a steam turbine including a rotor including a free side end fixed by a journal bearing (not illustrated) in a radial direction and a fixed side end fixed by a thrust bearing in an axial direction, and a casing including a fixed side end fixed by the thrust bearing in the axial direction (rotor axial direction), a casing position adjustment device is configured to adjust an axial position of the casing with respect to the rotor due to thermal expansion. The casing position adjustment device includes: a low-pressure casing end plate, which is an end plate oriented to a free side in the axial direction in a low-pressure casing of the casing, and has a diaphragm shape deformable in the axial direction; and actuators, which deform the low-pressure casing end plate so that the low-pressure casing end plate extends toward the free side in the axial direction.

    STEAM VALVE AND STEAM TURBINE SYSTEM
    5.
    发明申请
    STEAM VALVE AND STEAM TURBINE SYSTEM 审中-公开

    公开(公告)号：US20180340627A1

    公开(公告)日：2018-11-29

    申请号：US15771518

    申请日：2016-11-04

    申请人： Mitsubishi Hitachi Power Systems, Ltd.

    发明人： Kensuke FUTAHASHI ,  Hiroyuki KANAZAWA ,  Kengo IMAOKA ,  Katsuhisa HAMADA

    IPC分类号： F16K31/44 ,  F01D17/10 ,  F16K1/44

    摘要： A steam valve includes: a valve casing; a first valve body; a second valve body; a second valve rod; a first valve rod; a first actuator capable of applying a first biasing force in the vertical direction to the first valve rod; a second actuator capable of applying a second biasing force in the vertical direction to the second valve rod; a first link mechanism disposed between the first actuator and the first valve rod and capable of transmitting the first biasing force; a second link mechanism disposed between the second actuator and the second valve rod and capable of transmitting the second biasing force, the second link mechanism having a linking part provided integrally with the second valve rod and a lever which is pin-coupled to the linking part; and a guide mechanism capable of regulating horizontal displacement of the linking part.

    SEALING DEVICE
    6.
    发明申请
    SEALING DEVICE 审中-公开

    公开(公告)号：US20190003328A1

    公开(公告)日：2019-01-03

    申请号：US16062941

    申请日：2016-10-20

    申请人： Mitsubishi Hitachi Power Systems, Ltd.

    发明人： Toyoharu NISHIKAWA ,  Katsuhisa HAMADA ,  Yoshihiro KUWAMURA

    IPC分类号： F01D11/04 ,  F01D11/10 ,  F01D11/00 ,  F16J15/447

    摘要： A sealing device includes a fin, a through hole, and a high pressure fluid supplying unit. The fin extends from a stationary body toward a rotating body in a gap between the stationary and rotating bodies. The fin is not in contact with the rotating body. The through hole is formed to be opened in at least one of the stationary body and the rotating body on an upstream side of the fin in a flow direction of a fluid to flow into the gap between the stationary body and the rotating body. The through hole is opened toward an upstream side of the fluid to flow in the gap between the stationary body and the rotating body. The high pressure fluid supplying unit is configured to supply a high pressure fluid to the gap from the through hole. The high pressure fluid has a higher pressure than the fluid.

    STEAM TURBINE
    9.
    发明申请
    STEAM TURBINE 审中-公开

    公开(公告)号：US20180371917A1

    公开(公告)日：2018-12-27

    申请号：US16062957

    申请日：2016-12-21

    申请人： Mitsubishi Hitachi Power Systems, Ltd.

    发明人： Toyoharu NISHIKAWA ,  Katsuhisa HAMADA ,  Takumi MATSUMURA

    IPC分类号： F01D5/08 ,  F01D25/12 ,  F01K7/22 ,  F01K13/00 ,  F02C7/16

    摘要： A steam turbine is for a combined cycle plant. The combined cycle plant includes a gas turbine; a boiler a heat source of which is a flue gas discharged from the gas turbine; a high-pressure steam turbine that includes a rotor extending along an axial center of rotation of the rotor, a steam passage provided along the extending direction of the rotor between the rotor and a casing for the rotor, and a high-pressure steam supply portion provided to communicate, from outside the casing through the casing, with the steam passage and configured to be supplied with superheated steam, the high-pressure steam turbine being driven by high-pressure steam generated by the boiler; and a low-pressure steam turbine configured to be driven by low-pressure steam generated by the boiler and by the steam that has flowed through the high-pressure steam turbine.