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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
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。
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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
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。
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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
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。
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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
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。
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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
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。
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公开(公告)号：US4662820A
公开(公告)日：1987-05-05
申请号：US752860
申请日：1985-07-08
申请人： Tetsuo Sasada , Takeshi Sato , Haruo Urushidani , Katsukuni Hisano , Ryoichi Kaneko , Kazuo Ikeuchi , Kunio Tsuji
发明人： Tetsuo Sasada , Takeshi Sato , Haruo Urushidani , Katsukuni Hisano , Ryoichi Kaneko , Kazuo Ikeuchi , Kunio Tsuji
CPC分类号： F04D29/161 , F01D11/08
摘要： A stage structure of an axial turbine includes a stationary inner ring, a stationary outer wall, a row of stationary blades mounted on the stationary inner ring and outer wall, a row of moving blades, and a shroud ring mounted on the tips of the moving blades. An annular solid substance, disposed immediately downstream of an axial gap formed between an axial end of the shroud ring and surface of the outer wall axially facing the axial end of the shroud ring, reduces an expansion space provided immediately downstream of the axial gap, whereby circulation of an ejection flow from a main stream through the axial gap is reduced so that the turbine stage efficiency is improved. The annular solid substance may be a ring fixed to the stationary outer wall, a protrusion or a cylinder formed by a portion of the outer wall.
摘要翻译： 轴流式涡轮机的级结构包括固定内环，固定外壁，安装在固定内环和外壁上的一排固定叶片，一排活动叶片和安装在移动的尖端上的护罩环 刀片。 设置在形成在护罩环的轴向端部和轴向面向护罩环的轴向端部的外壁的表面之间的轴向间隙的紧邻下游的环形固体物质减小了紧邻轴向间隙的下游的膨胀空间，由此 从主流通过轴向间隙的喷射流的循环减少，从而提高了涡轮级的效率。 环状固体物质可以是固定在静止的外壁上的环，由外壁的一部分形成的突起或圆筒。
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公开(公告)号：US4478082A
公开(公告)日：1984-10-23
申请号：US408949
申请日：1982-08-17
申请人： Ichiya Sato , Takao Yoneyama , Tsuguaki Koga , Kazuo Ikeuchi , Katsukuni Hisano
发明人： Ichiya Sato , Takao Yoneyama , Tsuguaki Koga , Kazuo Ikeuchi , Katsukuni Hisano
CPC分类号： G01N29/12 , G01H1/003 , G01N2291/014 , G01N2291/101 , G01N2291/2693
摘要： A method and apparatus for detecting the occurrence of rubbing in a rotary machine, in which at least one acoustic sensor is mounted on at least the rotor part or the stator part of the rotary machine, and the output signal from the acoustic sensor is detected and then filtered to extract a frequency component having a frequency substantially equal to the rotational frequency of the rotary machine, so as to detect the occurrence of rubbing in the rotary machine as early as possible and also to locate the source of the rubbing. Even when the occurrence of abnormal metal-to-metal contact at a bearing of the rotary machine is detected, it is discriminated from rubbing so that the occurrence of the rubbing can be reliably detected.
摘要翻译： 一种在旋转机器中检测摩擦发生的方法和装置，其中至少一个声传感器安装在至少旋转机器的转子部分或定子部分上，并且检测来自声传感器的输出信号， 然后过滤以提取频率基本上等于旋转机的旋转频率的频率分量，以便尽可能早地检测旋转机器中的摩擦的发生并且还可以定位摩擦源。 即使检测到在旋转机械的轴承处发生异常金属对金属的接触，也可以将其与摩擦进行区别，从而能够可靠地检测摩擦的发生。
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公开(公告)号：US4187685A
公开(公告)日：1980-02-12
申请号：US876944
申请日：1978-02-10
申请人： Kunio Tsuji , Katsukuni Hisano , Akira Sakai , Shozo Nakamura
发明人： Kunio Tsuji , Katsukuni Hisano , Akira Sakai , Shozo Nakamura
CPC分类号： F01K13/02
摘要： A method and system for effecting control governing of a steam turbine wherein the steam chamber of a first stage nozzle is divided into a plurality of steam compartments, control valves each connected to one of the steam compartments are individually operated for controlling the flow rate of steam introduced into the turbine, and the governing of the nozzle is effected by adjusting the flow rate of steam in accordance with a load. At low load, the degree of opening of the control valves is kept constant and the turbine is driven by steam of a reduced pressure by reducing the pressure of the steam at the inlet of the turbine so as to maintain, in a low load region, the volume flow rate of steam for a high load region. To cope with a change in the value of the load, the degree of opening corresponding to a predetermined change in the value of the load is set beforehand for each control valve. When the change in the value of the load is smaller than the predetermined change in the value of the load, the degree of opening of the control valve involved is adjusted. Conversely, when the change in the value of the load is greater than the predetermined change in the value of the load, the pressure of the steam at the inlet of the turbine is controlled.
摘要翻译： 一种用于实现蒸汽轮机的控制控制的方法和系统，其中第一级喷嘴的蒸汽室被分成多个蒸汽隔间，各自连接到一个蒸汽隔间的控制阀被单独操作以控制蒸汽的流量 引入涡轮机，并且通过根据负载调节蒸汽的流量来实现喷嘴的调节。 在低负载下，控制阀的开度保持恒定，并且通过减小涡轮入口处的蒸汽的压力使涡轮由减压蒸汽驱动，以便在低负荷区域中保持， 高负荷区域的蒸汽体积流量。 为了应对负载值的变化，对于每个控制阀，预先设定对应于负载值的预定变化的开度。 当负载值的变化小于负载值的预定变化时，调节所涉及的控制阀的开度。 相反，当负载值的变化大于负载值的预定变化时，控制涡轮入口处的蒸汽的压力。
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公开(公告)号：US5121597A
公开(公告)日：1992-06-16
申请号：US470596
申请日：1990-01-26
申请人： Haruo Urushidani , Seiichi Kirikami , Isao Sato , Nobuo Shimizu , Osamu Arai , Akira Shimura , Michio Kuroda , Tsuguaki Koga , Tadashi Kurokawa , Yoji Ishibashi , Katsukuni Hisano
发明人： Haruo Urushidani , Seiichi Kirikami , Isao Sato , Nobuo Shimizu , Osamu Arai , Akira Shimura , Michio Kuroda , Tsuguaki Koga , Tadashi Kurokawa , Yoji Ishibashi , Katsukuni Hisano
摘要： A gas turbine combustor and a method of operating the gas turbine combustor, with the gas turbine combustor comprising a combustion sleeve, a combustion sub-chamber disposed at an upstream side of the combustion sleeve and having an air and fuel supply system, and a combustion main chamber disposed on a downstream side of the sub-chamber and having an air and fuel supply system. The combustion sub-chamber and combustion main chamber are formed in such a manner that the start-up of the gas turbine is effected by the hot combustion gas generated in the sub-chamber. The combustion sub-chamber is provided with an inner sleeve protruding from a side wall of the sub-chamber such that a tip of the inner sleeve is located in the vicinity of a downstream end of the sub-chamber, and a fuel nozzle is provided in a tip of the inner sleeve for increasing the fuel-to-air ratio during an initiating period of an increase in the gas turbine rotation speed.
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公开(公告)号：US4766721A
公开(公告)日：1988-08-30
申请号：US917973
申请日：1986-10-14
申请人： Nobuyuki Iizuka , Yoji Ishibashi , Isao Sato , Fumiyuki Hirose , Hiroshi Inose , Katsukuni Hisano , Katsuo Wada , Seiichi Kirikami , Michio Kuroda , Yoshihiro Uchiyama
发明人： Nobuyuki Iizuka , Yoji Ishibashi , Isao Sato , Fumiyuki Hirose , Hiroshi Inose , Katsukuni Hisano , Katsuo Wada , Seiichi Kirikami , Michio Kuroda , Yoshihiro Uchiyama
CPC分类号： F23R3/34 , F02C9/18 , F23R3/26 , F05D2270/31
摘要： A combustor of two-stage combustion type in which fuel is supplied only from primary fuel nozzles for combustion only in primary combustion chamber under the operating condition where gas turbine load is low, and premixed mixture is supplied into a secondary combustion chamber provided on the downstream side of the primary combustion chamber for combustion in both the primary and secondary combustion chambers under the operating condition where the load is high. An air-bleed passageway opens on a downstream side of air holes for intaking secondary combustion air to be mixed with secondary fuel and communicates with the outside of the combustor. The air-bleed passageway is provided with a regulating valve and the secondary combustion air is bled at the minimum point of the load where the secondary fuel is supplied so that the fuel to air ratio of secondary premixed mixture may not be excessively lean, thereby reducing the production of non-burned components.
摘要翻译： 一种二级燃烧式的燃烧器，其中，在燃气轮机负荷低的运行条件下，燃料仅从主燃料喷嘴供给燃料，仅在一级燃烧室中燃烧，并且将预混合物供给到设置在下游的二次燃烧室 在一次燃烧室中，在负载高的运行条件下在一次燃烧室和二次燃烧室中燃烧。 排气通道在气孔的下游侧开口，用于吸入与二次燃料混合的二次燃烧空气并与燃烧器的外部连通。 排气通道设置有调节阀，二次燃烧空气在供给二次燃料的负载的最小点处排出，使得二次预混混合物的燃料与空气的比例可能不会过度减少，从而减少 生产非烧成分。
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