公开(公告)号：US4426162A

公开(公告)日：1984-01-17

申请号：US326351

申请日：1981-12-01

申请人： Keiichi Tsuchiya ,  Katsukuni Hisano ,  Toshimi Tan ,  Masahiro Kobayashi ,  Kei Kobayashi ,  Kazuhiko Ueda ,  Seishin Kirihara ,  Takatoshi Yoshioka ,  Masao Shiga

发明人： Keiichi Tsuchiya ,  Katsukuni Hisano ,  Toshimi Tan ,  Masahiro Kobayashi ,  Kei Kobayashi ,  Kazuhiko Ueda ,  Seishin Kirihara ,  Takatoshi Yoshioka ,  Masao Shiga

IPC分类号： F01D25/16 ,  F16C3/02 ,  F16C33/12 ,  F16C33/14

CPC分类号： F16C3/02 ,  F01D25/16

摘要： A rotor shaft suitable for use as the rotor shaft of a steam turbine. The rotor shaft has a rotor shaft portion made of a Cr alloy steel having martensite structure and containing 8 to 13% Cr. The rotor shaft body is provided with at least one journal portion at which the rotor shaft is rotatably supported by a bearing. The rotor shaft further has a sleeve fitted around each journal portion. The sleeve is divided in the circumferential direction into a plurality of segments which are assembled together by welding or fitting into the sleeve having a circular cross-section. Due to the provision of the sleeve around the journal portion, the rotor shaft made of Cr alloy steel can have improved bearing properties.

摘要翻译： 适用于蒸汽轮机的转子轴的转子轴。 转子轴具有由具有马氏体结构且含有8〜13％的Cr的Cr合金钢制成的转子轴部。 转子轴体设置有至少一个轴颈部分，转子轴由轴承可转动地支撑在轴颈部分上。 转子轴还具有围绕每个轴颈部分安装的套筒。 套筒沿圆周方向分成多个段，通过焊接或装配到具有圆形横截面的套筒中组装在一起。 由于套筒围绕轴颈部分设置，所以由Cr合金钢制成的转子轴可具有改善的轴承性能。

公开(公告)号：US4504554A

公开(公告)日：1985-03-12

申请号：US363493

申请日：1982-03-30

申请人： Takatoshi Yoshioka ,  Seishin Kirihara ,  Masao Siga ,  Takehiko Yoshida ,  Katsukuni Hisano ,  Toshimi Tan ,  Masahiro Kobayashi

发明人： Takatoshi Yoshioka ,  Seishin Kirihara ,  Masao Siga ,  Takehiko Yoshida ,  Katsukuni Hisano ,  Toshimi Tan ,  Masahiro Kobayashi

IPC分类号： F01D5/06 ,  F16C3/02 ,  B23K9/04 ,  B23K35/30 ,  F01D25/16

CPC分类号： F01D5/06 ,  F16C3/02 ,  F16C33/14 ,  F16C17/02 ,  F16C2220/24 ,  F16C2223/46 ,  Y10T428/12965 ,  Y10T428/12972

摘要： A steam turbine rotor shaft comprising the main body of the rotor shaft made of a high Cr steel of martensite structure, and a journal having a plurality of built-up welding layers formed successively said main body, the outer surface portion of the journal being made of steel containing 0.5 to 3 wt % of Cr, and a method of producing same.

摘要翻译： 一种蒸汽涡轮机转子轴，包括由马氏体组织的高Cr钢制成的转子轴的主体，以及具有连续形成的多个积层焊接层的轴颈，所述轴颈的外表面部分被制成 的含有0.5〜3重量％的Cr的钢及其制造方法。

公开(公告)号：US4497670A

公开(公告)日：1985-02-05

申请号：US463854

申请日：1983-02-04

申请人： Masao Siga ,  Seishin Kirihara ,  Takatoshi Yoshioka ,  Katsukuni Hisano ,  Toshimi Tan ,  Yoji Akutsu ,  Kei Kobayashi

发明人： Masao Siga ,  Seishin Kirihara ,  Takatoshi Yoshioka ,  Katsukuni Hisano ,  Toshimi Tan ,  Yoji Akutsu ,  Kei Kobayashi

IPC分类号： F01D5/06 ,  B23P11/02 ,  C21D9/14 ,  C21D9/38 ,  F01D25/16 ,  C21D9/28

CPC分类号： C21D9/14 ,  B23P11/02 ,  C21D9/38 ,  F16C35/02

摘要： A rotor shaft for steam turbines has a journal portion to be supported by a bearing. The journal portion is provided with a sleeve for a bearing made of an alloy of bainite structure comprising 0.04 to 0.35% C, 0.2 to 2% Mn, less than 1% Si, 0.5 to 3% Cr, less than 5% Ni, and less than 0.5% V, having yield strength of more than 50 kg/mm.sup.2 and Lt of less than 24. The sleeve is divided into two semicylindrical segments, and they are arranged on a small diameter portion of the shaft adjacent to said journal portion, welded into one piece, and subjected to stress relief treatment at a temperature higher than a temperature of tempering conducted to the sleeve before welding. The welded sleeve is fitted on the journal portion by shrink-fit so that the sleeve can be served as a superior bearing.

摘要翻译： 用于蒸汽轮机的转子轴具有由轴承支撑的轴颈部分。 轴颈部分设有用于由贝氏体组织合金制成的轴承套筒，该套筒包括0.04-0.35％的C，0.2到2％的Mn，小于1％的Si，0.5到3％的Cr，小于5％的Ni，以及 屈服强度大于50kg / mm2，Lt小于24.套筒被分成两个半圆柱形部分，并且它们布置在与所述轴颈部分相邻的轴的小直径部分上， 焊接成一体，在比焊接前对套筒进行回火温度高的温度下进行应力消除处理。 焊接套管通过收缩配合安装在轴颈部分上，使得套筒可以作为优越的轴承。

公开(公告)号：US4321012A

公开(公告)日：1982-03-23

申请号：US102365

申请日：1979-12-11

申请人： Toshimi Tan ,  Katsukuni Hisano

发明人： Toshimi Tan ,  Katsukuni Hisano

IPC分类号： F01D5/30 ,  F01D5/32

CPC分类号： F01D5/30 ,  F01D5/3053

摘要： A moving blade fastening construction comprising moving blade fingers formed in the moving blade root portion and rotor wheel fingers formed in the rotor wheel root portion and arranged so that the fingers of the moving blade are inserted in spaces defined between the fingers of the rotor wheel, thereby to provide at least two engaging portions radially spaced from each other. An average thickness of the moving blade finger is larger than that of the rotor wheel finger which is made of material larger in Young's modulus than the moving blade fingers, whereby stresses induced in the moving blade root portion are made uniform.

摘要翻译： 一种移动叶片紧固结构，包括形成在动叶片根部中的移动叶片指状物和形成在转子叶轮根部中的转子轮指，并且布置成使得动叶片的指状物插入限定在转子轮的指状物之间的空间中， 从而提供彼此径向间隔开的至少两个接合部。 活动叶片手指的平均厚度大于由具有比移动的叶指大的杨氏模量的材料制成的转子轮指的平均厚度，由此使得在动叶片根部处产生的应力均匀。

公开(公告)号：US4342542A

公开(公告)日：1982-08-03

申请号：US090435

申请日：1979-11-01

申请人： Toshimi Tan ,  Katsukuni Hisano ,  Takao Mizoi

发明人： Toshimi Tan ,  Katsukuni Hisano ,  Takao Mizoi

IPC分类号： F01D5/14 ,  F01D5/28

CPC分类号： F01D5/14 ,  F01D5/28

摘要： A moving blade for use in a steam turbine has a turbine rotor carrying a multiplicity of radially outwardly extending moving blades, each moving blade being provided at its leading edge of the radially outer end thereof with an anti-erosion plate attached by welding. The turbine blade has thicknesswise protrusions formed on both surfaces thereof at a portion near the base of the anti-erosion plate where it is attached to the moving blade. Thanks to these thicknesswise protrusions, the moving blade has such a radial distribution of cross-sectional area that the cross-sectional area is greater at the portion where the thicknesswise protrusions are formed than at other portions which are adjacent to the above-mentioned portion of the moving blade in the radial direction. As a result, the stresses at the portion of the moving blade near the base of the anti-erosion plate are reduced.

摘要翻译： 用于蒸汽涡轮机的动叶片具有承载多个径向向外延伸的活动叶片的涡轮机转子，每个活动叶片在其径向外端的前缘设置有通过焊接附着的防腐蚀板。 涡轮叶片具有形成在其两个表面上的厚度方向的突起部，其靠近抗侵蚀板的基部附近移动的叶片。 由于这些厚度方向的突起，活动叶片具有这样的横截面积的径向分布，即横截面积在形成有厚度方向的部分的部分大于与上述部分相邻的其它部分 动叶片在径向方向。 结果，减少了在抗蚀板底部附近的动叶片部分处的应力。

公开(公告)号：US5624235A

公开(公告)日：1997-04-29

申请号：US530960

申请日：1995-09-20

申请人： Masao Siga ,  Yutaka Fukui ,  Mitsuo Kuriyama ,  Yoshimi Maeno ,  Masateru Suwa ,  Ryoichi Kaneko ,  Takeshi Onoda ,  Hidefumi Kajiwara ,  Yasuo Watanabe ,  Shintaro Takahashi ,  Toshimi Tan

发明人： Masao Siga ,  Yutaka Fukui ,  Mitsuo Kuriyama ,  Yoshimi Maeno ,  Masateru Suwa ,  Ryoichi Kaneko ,  Takeshi Onoda ,  Hidefumi Kajiwara ,  Yasuo Watanabe ,  Shintaro Takahashi ,  Toshimi Tan

IPC分类号： C21D9/38 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  F01D5/02 ,  F01D5/06 ,  F01D5/14 ,  F01D5/28

CPC分类号： F01D5/147 ,  C21D9/38 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  F01D5/02 ,  F01D5/06 ,  F01D5/141 ,  F01D5/28 ,  F01D5/288 ,  C21D2211/002 ,  F05D2300/133 ,  F05D2300/171

摘要： The present invention relates to a steam turbine comprising a rotor shaft integrating high and low pressure portions provided with blades at the final stage thereof having a length not less than 30 inches, wherein a steam temperature at first stage blades is 530.degree. C., a ratio (L/D) of a length (L) defined between bearings of the rotor shaft to a diameter (D) measured between the terminal ends of final stage blades is 1.4 to 2.3. This rotor shaft is composed of heat resisting steel containing by weight 0.15 to 0.4 % C, not more than 0.1 % Si, 0.05 to 0.25 % Mn, 1.5 to 2.5 % Ni, 0.8 to 2.5 % Cr, 0.8 to 2.5 % Mo and 0.15 to 0.35 % V and, further, the heat resisting steel may contain at least one of Nb, Ta, W, Ti, Al, Zr, B, Ca, and rare earth elements.

摘要翻译： 汽轮机技术领域本发明涉及一种蒸汽涡轮机，其特征在于，包括转子轴，该转子轴在其最后阶段集成有高压部分和低压部分，叶片长度不小于30英寸，其中第一级叶片的蒸汽温度为530℃， 在转子轴的轴承之间限定的长度（L）与最终级叶片的末端之间测量的直径（D）的比（L / D）为1.4至2.3。 该转子轴由含有0.15〜0.4％C，0.1％以下的Si，0.05〜0.25％的Mn，1.5〜2.5％的Ni，0.8〜2.5％的Cr，0.8〜2.5％的Mo和0.15重量的耐热钢构成。 至0.35％V，此外，耐热钢可以含有Nb，Ta，W，Ti，Al，Zr，B，Ca和稀土元素中的至少一种。

公开(公告)号：US5569338A

公开(公告)日：1996-10-29

申请号：US461521

申请日：1995-06-05

申请人： Masao Siga ,  Yutaka Fukui ,  Mitsuo Kuriyama ,  Yoshimi Maeno ,  Masateru Suwa ,  Ryoichi Kaneko ,  Takeshi Onoda ,  Hidefumi Kajiwara ,  Yasuo Watanabe ,  Shintaro Takahashi ,  Toshimi Tan

发明人： Masao Siga ,  Yutaka Fukui ,  Mitsuo Kuriyama ,  Yoshimi Maeno ,  Masateru Suwa ,  Ryoichi Kaneko ,  Takeshi Onoda ,  Hidefumi Kajiwara ,  Yasuo Watanabe ,  Shintaro Takahashi ,  Toshimi Tan

IPC分类号： C21D9/38 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  F01D5/02 ,  F01D5/06 ,  F01D5/14 ,  F01D5/28 ,  C21D9/00

CPC分类号： F01D5/147 ,  C21D9/38 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  F01D5/02 ,  F01D5/06 ,  F01D5/141 ,  F01D5/28 ,  F01D5/288 ,  C21D2211/002 ,  F05D2300/133 ,  F05D2300/171

摘要： The present invention relates to a steam turbine comprising a rotor shaft integrating high and low pressure portions provided with blades at the final stage thereof having a length not less than 30 inches, wherein a steam temperature at first stage blades is 530.degree. C., a ratio (L/D) of a length (L) defined between bearings of the rotor shaft to a diameter (D) measured between the terminal ends of final stage blades is 1.4 to 2.3. This rotor shaft is composed of heat resisting steel containing by weight 0.15 to 0.4% C, not more than 0.1% Si, 0.05 to 0.25% Mn, 1.5 to 2.5% Ni, 0.8 to 2.5% Cr, 0.8 to 2.5% Mo and 0.15 to 0.35% V and, further, the heat resisting steel may contain at least one of Nb, Ta, W, Ti, Al, Zr, B, Ca, and rare earth elements.

摘要翻译： 汽轮机技术领域本发明涉及一种蒸汽涡轮机，其特征在于，包括转子轴，该转子轴在其最后阶段集成有高压部分和低压部分，叶片长度不小于30英寸，其中第一级叶片的蒸汽温度为530℃， 在转子轴的轴承之间限定的长度（L）与最终级叶片的末端之间测量的直径（D）的比（L / D）为1.4至2.3。 该转子轴由含有0.15〜0.4％C，0.1％以下的Si，0.05〜0.25％的Mn，1.5〜2.5％的Ni，0.8〜2.5％的Cr，0.8〜2.5％的Mo和0.15重量的耐热钢构成。 至0.35％V，此外，耐热钢可以含有Nb，Ta，W，Ti，Al，Zr，B，Ca和稀土元素中的至少一种。

公开(公告)号：US5383768A

公开(公告)日：1995-01-24

申请号：US893079

申请日：1992-06-03

申请人： Masao Siga ,  Yutaka Fukui ,  Mitsuo Kuriyama ,  Yoshimi Maeno ,  Masateru Suwa ,  Ryoichi Kaneko ,  Takeshi Onoda ,  Hidefumi Kajiwara ,  Yasuo Watanabe ,  Shintaro Takahashi ,  Toshimi Tan

发明人： Masao Siga ,  Yutaka Fukui ,  Mitsuo Kuriyama ,  Yoshimi Maeno ,  Masateru Suwa ,  Ryoichi Kaneko ,  Takeshi Onoda ,  Hidefumi Kajiwara ,  Yasuo Watanabe ,  Shintaro Takahashi ,  Toshimi Tan

IPC分类号： C21D9/38 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  F01D5/02 ,  F01D5/06 ,  F01D5/14 ,  F01D5/28

CPC分类号： F01D5/147 ,  C21D9/38 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  F01D5/02 ,  F01D5/06 ,  F01D5/141 ,  F01D5/28 ,  F01D5/288 ,  C21D2211/002 ,  F05D2300/133 ,  F05D2300/171

摘要： The present invention relates to a steam turbine comprising a rotor shaft integrating high and low pressure portions provided with blades at the final stage thereof having a length not less than 30 inches, wherein a steam temperature at first stage blades is 530.degree. C., a ratio (L/D) of a length (L) defined between bearings of the rotor shaft to a diameter (D) measured between the terminal ends of final stage blades is 1.4 to 2.3. This rotor shaft is composed of heat resisting steel containing by weight 0.15 to 0.4% C, not more than 0.1% Si, 0.05 to 0.25% Mn, 1.5 to 2.5% Ni, 0.8 to 2.5% Cr, 0.8 to 2.5% Mo and 0.15 to 0.35% V and, further, the heat resisting steel may contain at least one of Nb, Ta, W, Ti, Al, Zr, B, Ca, and rare earth elements.

摘要翻译： 汽轮机技术领域本发明涉及一种蒸汽涡轮机，其特征在于，包括转子轴，该转子轴在其最后阶段集成有高压部分和低压部分，叶片长度不小于30英寸，其中第一级叶片的蒸汽温度为530℃， 在转子轴的轴承之间限定的长度（L）与最终级叶片的末端之间测量的直径（D）的比（L / D）为1.4至2.3。 该转子轴由含有0.15〜0.4％C，0.1％以下的Si，0.05〜0.25％的Mn，1.5〜2.5％的Ni，0.8〜2.5％的Cr，0.8〜2.5％的Mo和0.15重量的耐热钢构成。 至0.35％V，此外，耐热钢可以含有Nb，Ta，W，Ti，Al，Zr，B，Ca和稀土元素中的至少一种。

公开(公告)号：US5027268A

公开(公告)日：1991-06-25

申请号：US420520

申请日：1989-10-12

申请人： Shigeo Sakurai ,  Hiroshi Miyata ,  Toshimi Tan ,  Ryoichi Kaneko

发明人： Shigeo Sakurai ,  Hiroshi Miyata ,  Toshimi Tan ,  Ryoichi Kaneko

IPC分类号： G01R31/00 ,  G01D21/00 ,  G01M99/00 ,  G07C3/00

CPC分类号： G06Q10/06 ,  G07C3/00

摘要： A system clarifies the damaged state of a plant, and estimates the life expectancy of the plant so as to administer the integrity of the plant. The system includes an apparatus for estimating the life expectancy of each of various pieces of component constituting the plant, a data base controlling apparatus, an apparatus for estimating the life expectancy of the entire plant, and a plant life extension and evaluation apparatus. The system is capable of making a specific proposal of a life extension plan which is necessary to and effective for the extension of the entire plant, and which is proposed including economical evaluation, thereby facilitating the conservation of the integrity of the plant, and also facilitating the maintenance and control thereof.

摘要翻译： 系统澄清了植物的损坏状态，并估计了植物的预期寿命，从而管理植物的完整性。 该系统包括用于估计构成工厂的各种部件的每一个的预期寿命的装置，数据库控制装置，用于估计整个工厂的预期寿命的装置以及工厂寿命延长和评估装置。 该系统能够提出延长生命延期计划的具体建议，对延长整个工厂是必要和有效的，所提出的方案包括经济评估，从而有助于保护工厂的完整性，并促进 维护和控制。

公开(公告)号：US06224334B1

公开(公告)日：2001-05-01

申请号：US08780441

申请日：1997-01-08

申请人： Masao Siga ,  Yutaka Fukui ,  Mitsuo Kuriyama ,  Yoshimi Maeno ,  Masateru Suwa ,  Ryoichi Kaneko ,  Takeshi Onoda ,  Hidefumi Kajiwara ,  Yasuo Watanabe ,  Shintaro Takahashi ,  Toshimi Tan

发明人： Masao Siga ,  Yutaka Fukui ,  Mitsuo Kuriyama ,  Yoshimi Maeno ,  Masateru Suwa ,  Ryoichi Kaneko ,  Takeshi Onoda ,  Hidefumi Kajiwara ,  Yasuo Watanabe ,  Shintaro Takahashi ,  Toshimi Tan

IPC分类号： F01D528

CPC分类号： F01D5/147 ,  C21D9/38 ,  C21D2211/002 ,  C22C38/44 ,  C22C38/46 ,  C22C38/48 ,  F01D5/02 ,  F01D5/06 ,  F01D5/141 ,  F01D5/28 ,  F01D5/288 ,  F05D2300/133 ,  F05D2300/171

摘要： A steam turbine comprising a rotor shaft integrating high and low pressure portions provided with blades at the final stage thereof having a length not less than 30 inches, wherein a steam temperature at first stage blades is 530° C., a ratio (L/D) of a length (L) defined between bearings of the rotor shaft to a diameter (D) measured between the terminal ends of final stage blades is 1.4 to 2.3. This rotor shaft is composed of heat resisting steel containing by weight 0.15 to 0.4% C, not more than 0.1% Si, 0.05 to 0.25% Mn, 1.5 to 2.5% Ni, 0.8 to 2.5% Cr, 0.8 to 2.5% Mo and 0.15 to 0.35% V and, further, the heat resisting steel may contain at least one of Nb, Ta, W, Ti, Al, Zr, B, Ca, and rare earth elements.

摘要翻译： 一种蒸汽轮机，包括集成高压部分和低压部分的转子轴，所述转子轴在其最后阶段具有不小于30英寸的长度，其中第一级叶片处的蒸汽温度为530℃，比率（L / D 限定在转子轴的轴承之间的长度（L）与在最终级叶片的末端之间测量的直径（D）为1.4至2.3。 该转子轴由含有0.15〜0.4％C，0.1％以下的Si，0.05〜0.25％的Mn，1.5〜2.5％的Ni，0.8〜2.5％的Cr，0.8〜2.5％的Mo和0.15重量的耐热钢构成。 至0.35％V，此外，耐热钢可以含有Nb，Ta，W，Ti，Al，Zr，B，Ca和稀土元素中的至少一种。