公开(公告)号：US20150125266A1

公开(公告)日：2015-05-07

申请号：US14532424

申请日：2014-11-04

申请人： Mitsubishi Hitachi Power Systems, Ltd.

发明人： Yusuke TAKAHASHI ,  Goingwon LEE ,  Koji OGATA ,  Nozomu OGASAWARA

IPC分类号： F01K7/16 ,  F01D1/20 ,  F01D17/10

CPC分类号： F01K7/165 ,  F01D1/023 ,  F01D17/105 ,  F01D17/145 ,  F02C9/18 ,  F05D2260/606

摘要： Steam turbine equipment is provided that can sharply adjust power generation output based on a variation in power demand while improving power generation efficiency during operation at a rated power generation output.The steam turbine equipment includes a steam control valve 4 disposed in a main steam pipe 2 leading from a boiler 1 to a steam turbine, an overload valve 6 disposed in an overload steam pipe 5 that bypasses the steam control valve 4 and leads from the main steam pipe 2 to a lower-pressure side of a steam turbine than a point where the main steam pipe 2 connects to the steam turbine, and a slit portion 31 through which the steam having flowed through the overload steam pipe 5 passes before flowing into a steam turbine stage portion. The slit portion 31 is configured such that its width C in an axial direction of a turbine rotor 15 is smaller than an inside diameter d of the overload steam pipe 5 (d>C).

摘要翻译： 提供了一种蒸汽轮机设备，其可以在额定功率产生输出时在提高发电效率的同时，根据功率需求的变化急剧调整发电输出。 蒸汽轮机设备包括设置在从锅炉1引导到蒸汽轮机的主蒸汽管2中的蒸汽控制阀4，设置在过载蒸汽管5中的过载阀6，其绕过蒸汽控制阀4并从主管 蒸汽管2相对于主蒸汽管2与蒸汽轮机连接的点的蒸汽涡轮机的低压侧，以及在流过过热蒸汽管5之前流过过载蒸汽管5的蒸汽通过的狭缝部31 汽轮机台部。 狭缝部31构成为，其涡轮转子15的轴向宽度C比过载蒸汽管5的内径d小（d> C）。

公开(公告)号：US20150107218A1

公开(公告)日：2015-04-23

申请号：US14520619

申请日：2014-10-22

申请人： Mitsubishi Hitachi Power Systems, Ltd.

发明人： Tateki NAKAMURA ,  Koji OGATA ,  Eiji KUMAKURA ,  Takeshi KUDO

IPC分类号： F01K23/10 ,  F01K7/20 ,  F01K7/16

CPC分类号： F01K23/10 ,  F01K3/04 ,  F01K7/165 ,  F01K7/20 ,  F01K13/02 ,  Y02E20/16

摘要： A combined cycle plant including a gas turbine, a heat recovery boiler for generating steam using exhaust heat of the gas turbine, and a steam turbine for feeding the steam generated by the heat recovery boiler from the heat recovery boiler through a steam system, characterized in that, the steam system is disposed so as to branch to a first steam system for introducing the steam to a first stage entrance of the steam turbine and a second steam system for introducing the steam to a stage entrance on a downstream side of the first stage of the steam turbine, and a flow rate of the steam fed to the steam turbine via the first steam system and the second steam system is adjusted on the basis of a steam flow rate generated by the heat recovery boiler.

摘要翻译： 一种联合循环设备，包括燃气轮机，使用燃气轮机的排热产生蒸汽的热回收锅炉，以及用于通过蒸汽系统从热回收锅炉供给由热回收锅炉产生的蒸汽的蒸汽涡轮机，其特征在于 蒸汽系统被设置成分支到第一蒸汽系统，用于将蒸汽引入蒸汽轮机的第一级入口;以及第二蒸汽系统，用于将蒸汽引入到第一级的下游侧的级入口 并且基于由热回收锅炉产生的蒸汽流量来调节经由第一蒸汽系统和第二蒸汽系统供给到蒸汽涡轮机的蒸汽的流量。

公开(公告)号：US20160169023A1

公开(公告)日：2016-06-16

申请号：US14965001

申请日：2015-12-10

申请人： Mitsubishi Hitachi Power Systems, Ltd.

发明人： Shunsuke MIZUMI ,  Takeshi KUDO ,  Koji OGATA ,  Shinji OIKAWA

IPC分类号： F01D11/02 ,  F16J15/447

CPC分类号： F01D11/02 ,  F05D2220/32 ,  F05D2240/55 ,  F16J15/442 ,  F16J15/447

摘要： It is an object of the present invention to provide a sealing mechanism that, while preventing a clearance that passes in an axial direction through an entire abutting surface without involving large resistance and that invites blow-by of a working fluid, can prevent adjacent seal segments from sticking to each other, and a method for manufacturing the sealing mechanism. A sealing device includes: an annular sealing ring that includes a plurality of seal segments annularly juxtaposed; a plurality of seal fins provided in an axial direction on an inner peripheral surface of the sealing ring; a joint surface on a circumferential end of the seal segment, the joint surface facing a joint surface on an adjacent seal segment; a groove that extends in a radial direction in the joint surface; and a protrusion formed by bending part of a surface that constitutes a long side of the groove toward an outside of the joint surface.

摘要翻译： 本发明的目的是提供一种密封机构，其能够防止沿着轴向通过整个抵接面而没有大的阻力而引起工作流体窜漏的间隙，能够防止相邻的密封部 彼此粘合，以及密封机构的制造方法。 密封装置包括：环形密封环，其包括环形并置的多个密封段; 在所述密封环的内周面上沿轴向设置的多个密封翅片; 所述密封段的周向端部上的接合表面，所述接合表面面向相邻密封段上的接合表面; 在所述接合面中沿径向延伸的槽; 以及通过将构成槽的长边的表面的一部分朝向接头表面的外侧弯曲而形成的突起。