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公开(公告)号：US08784046B2
公开(公告)日：2014-07-22
申请号：US13386084
申请日：2010-10-04
IPC分类号： F01D11/02
CPC分类号： F16J15/4472 , F01D5/225 , F01D11/001 , F01D11/02 , F01D11/08
摘要： The turbine is provided with a blade (50) and a structure body (11) which rotates relatively with respect to the blade (50). A stepped part (52A) having a step surface (53A) is installed at one of the leading end of the blade (50) and the structure body (11) corresponding to the leading end thereof, while a seal fin (15A) which extends toward the stepped part (52A) to form a small space (H) is installed at the other of them. A cavity (C1) is formed between the blade (50) and the structure body (11) and also between the seal fin (15A) and the partition wall which faces thereto in the rotating shaft direction of the structure body (11) on the upstream side. When a distance of the cavity (C1) between the partition wall and the seal fin (15A) is given as a cavity width (W), and a distance between the seal fin (15A) and the end edge (55) of the stepped part (52A) in the rotating shaft direction on the upstream side is given as (L), at least one of the distances (L) satisfies the following formula (1). 0.7H≦L≦0.3W (1).
摘要翻译： 涡轮机设置有相对于叶片（50）旋转的叶片（50）和结构体（11）。 具有台阶面（53A）的阶梯部（52A）安装在与其前端对应的叶片（50）和结构体（11）的前端中的一个上，而延伸的密封翅片 在台阶部分（52A）上形成一个较小的空间（H）。 在叶片（50）和结构体（11）之间以及在结构体（11）的旋转轴方向上与密封翅片（15A）和分隔壁之间形成的空腔（C1） 上游侧。 当分隔壁和密封翅片（15A）之间的空腔（C1）的距离被给定为空腔宽度（W）时，并且密封翅片（15A）和阶梯状的边缘（55）之间的距离 在上游侧的旋转轴方向上的部分（52A）被给出为（L），距离（L）中的至少一个满足下式（1）。 0.7H＆nlE; L＆nlE; 0.3W（1）。
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公开(公告)号：US20100329847A1
公开(公告)日：2010-12-30
申请号：US12666022
申请日：2008-10-24
IPC分类号： F01D5/14
CPC分类号： F01D9/041 , F01D5/16 , F05D2220/31 , Y10S416/50
摘要： A stationary blade and a steam turbine capable of reducing self-excited vibrations with a simple configuration are provided. A stationary blade has a cavity, extending in a blade-width direction, formed therein and slits communicating between the cavity and the outside. A wave-shaped plate spring that is in sliding contact with at least one of a pressure-side member and a suction-side member is provided between the pressure-side member, which is a portion on the pressure side of the cavity, and the suction-side member, which is a portion on the suction side of the cavity. When the stationary blade is elastically deformed, the wave-shaped plate spring causes friction between itself and at least one of the pressure-side member and the suction-side member. This friction attenuates relative positional displacement between the pressure-side member and the suction-side member. Thus, self-excited vibrations occurring at the stationary blade can be reduced.
摘要翻译： 提供了能够以简单的结构减少自激振动的固定叶片和蒸汽轮机。 固定叶片具有在叶片宽度方向上延伸的腔体，其形成在腔体和外部之间连通的缝隙。 在压力侧部件之间与压力侧部件和吸入侧部件中的至少一个滑动接触的波形板簧设置在作为空腔的压力侧的一部分的压力侧部件与 吸入侧构件，其是空腔的吸入侧的一部分。 当固定叶片弹性变形时，波形板簧引起其与压力侧构件和吸入侧构件中的至少一个之间的摩擦。 这种摩擦使得压力侧构件和吸入侧构件之间的相对位置偏移减弱。 因此，可以减少在固定叶片处产生的自激振动。
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3.发明申请Precipitation hardened martensitic stainless steel, manufacturing method therefor, and turbine moving blade and steam turbine using the same 审中-公开沉淀硬化马氏体不锈钢及其制造方法，以及使用其的涡轮机动叶片和蒸汽轮机公开(公告)号：US20060118215A1
公开(公告)日：2006-06-08
申请号：US11135385
申请日：2005-05-24
IPC分类号： C22C38/44
CPC分类号： F01D5/286 , C21D6/004 , C21D6/005 , C21D6/008 , C21D6/02 , C21D9/0068 , C21D2211/008 , C22C38/001 , C22C38/02 , C22C38/04 , C22C38/06 , C22C38/44 , C22C38/48 , F01D5/02 , F01D5/12 , F05C2201/0466 , F05D2220/30 , F05D2220/31 , F05D2230/00 , F05D2230/411 , F05D2300/11 , F05D2300/121 , F05D2300/125 , F05D2300/131 , F05D2300/132 , F05D2300/171
摘要： The precipitation hardened martensitic stainless steel is characterized by containing, in percent by weight, 12.25 to 14.25% Cr, 7.5 to 8.5% Ni, 1.0 to 2.5% Mo, 0.05% or less C, 0.2% or less Si, 0.4% or less Mn, 0.03% or less P, 0.005% or less S, 0.008% or less N, 0.90 to 2.25% Al, the balance substantially being Fe, and the total content of Cr and Mo being 14.25 to 16.75%. A turbine moving blade and a steam turbine are manufactured by using this martensitic stainless steel.
摘要翻译： 沉淀硬化马氏体不锈钢的特征在于，以重量％计含有12.25〜14.25％的Cr，7.5〜8.5％的Ni，1.0〜2.5％的Mo，0.05％以下的C，0.2％以下的Si，0.4％以下 Mn，0.03％以下的P，0.005％以下的S，0.008％以下的N，0.90〜2.25％的Al，余量实质上为Fe，Cr和Mo的总含量为14.25〜16.75％。 通过使用该马氏体不锈钢制造涡轮机动叶片和汽轮机。
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公开(公告)号：US08851844B2
公开(公告)日：2014-10-07
申请号：US12666022
申请日：2008-10-24
CPC分类号： F01D9/041 , F01D5/16 , F05D2220/31 , Y10S416/50
摘要： A stationary blade and a steam turbine capable of reducing self-excited vibrations with a simple configuration are provided. A stationary blade has a cavity, extending in a blade-width direction, formed therein and slits communicating between the cavity and the outside. A wave-shaped plate spring that is in sliding contact with at least one of a pressure-side member and a suction-side member is provided between the pressure-side member, which is a portion on the pressure side of the cavity, and the suction-side member, which is a portion on the suction side of the cavity. When the stationary blade is elastically deformed, the wave-shaped plate spring causes friction between itself and at least one of the pressure-side member and the suction-side member. This friction attenuates relative positional displacement between the pressure-side member and the suction-side member. Thus, self-excited vibrations occurring at the stationary blade can be reduced.
摘要翻译： 提供了能够以简单的结构减少自激振动的固定叶片和蒸汽轮机。 固定叶片具有在叶片宽度方向上延伸的腔体，其形成在腔体和外部之间连通的缝隙。 在压力侧部件之间与压力侧部件和吸入侧部件中的至少一个滑动接触的波形板簧设置在作为空腔的压力侧的一部分的压力侧部件与 吸入侧构件，其是空腔的吸入侧的一部分。 当固定叶片弹性变形时，波形板簧引起其与压力侧构件和吸入侧构件中的至少一个之间的摩擦。 这种摩擦使得压力侧构件和吸入侧构件之间的相对位置偏移减弱。 因此，可以减少在固定叶片处产生的自激振动。
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公开(公告)号：US20120121393A1
公开(公告)日：2012-05-17
申请号：US13386084
申请日：2010-10-04
IPC分类号： F01D11/08
CPC分类号： F16J15/4472 , F01D5/225 , F01D11/001 , F01D11/02 , F01D11/08
摘要： The turbine is provided with a blade (50) and a structure body (11) which rotates relatively with respect to the blade (50). A stepped part (52A) having a step surface (53A) is installed at one of the leading end of the blade (50) and the structure body (11) corresponding to the leading end thereof, while a seal fin (15A) which extends toward the stepped part (52A) to form a small space (H) is installed at the other of them. A cavity (C1) is formed between the blade (50) and the structure body (11) and also between the seal fin (15A) and the partition wall which faces thereto in the rotating shaft direction of the structure body (11) on the upstream side. When a distance of the cavity (C1) between the partition wall and the seal fin (15A) is given as a cavity width (W), and a distance between the seal fin (15A) and the end edge (55) of the stepped part (52A) in the rotating shaft direction on the upstream side is given as (L), at least one of the distances (L) satisfies the following formula (1). 0.7H≦L≦0.3W (1)
摘要翻译： 涡轮机设置有相对于叶片（50）旋转的叶片（50）和结构体（11）。 具有台阶面（53A）的阶梯部（52A）安装在与其前端对应的叶片（50）和结构体（11）的前端中的一个上，而延伸的密封翅片 在台阶部分（52A）上形成一个较小的空间（H）。 在叶片（50）和结构体（11）之间以及在结构体（11）的旋转轴方向上与密封翅片（15A）和分隔壁之间形成的空腔（C1） 上游侧。 当分隔壁和密封翅片（15A）之间的空腔（C1）的距离被给定为空腔宽度（W）时，并且密封翅片（15A）和阶梯状的边缘（55）之间的距离 在上游侧的旋转轴方向上的部分（52A）被给出为（L），距离（L）中的至少一个满足下式（1）。 0.7H＆nlE; L＆nlE; 0.3W（1）
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