公开(公告)号：US06237338B1

公开(公告)日：2001-05-29

申请号：US09428665

申请日：1999-10-28

申请人： Ryotaro Magoshi ,  Takashi Nakano

发明人： Ryotaro Magoshi ,  Takashi Nakano

IPC分类号： F01K1302

CPC分类号： F01D9/06

摘要： The present invention relates to a flexible inlet tube for a high and intermediate pressure steam turbine. A reheat steam inlet tube is constructed integrally with a casing. The inlet tube has a double tube portion to form an annular groove. The lower end of the double tube portion has an expanded diameter, and a vertical sliding motion can be accomplished between the expanded diameter portion and a flange fixed to a thermal shield, so that thermal elongation is absorbed. Low-temperature steam flows into the annular groove from an in-casing space through a hole, circulates in the annular groove, and flows out to a steam passage in an intermediate pressure turbine section, by which the interior of the annular groove is cooled, so that a temperature rise of the casing can be prevented.

摘要翻译： 本发明涉及一种用于高压和中压蒸汽轮机的柔性入口管。 再加热蒸汽入口管与外壳一体构成。 入口管具有双管部分以形成环形槽。 双管部分的下端具有扩大的直径，并且可以在扩径部分和固定到热屏蔽件的凸缘之间实现垂直滑动运动，从而吸收热延伸。 低温蒸汽通过孔从套管内空间流入环形槽，在环形槽中循环，并流出到中间压力涡轮部分中的蒸汽通道，环形槽的内部被冷却， 从而能够防止壳体的温度上升。

公开(公告)号：US6152697A

公开(公告)日：2000-11-28

申请号：US327557

申请日：1999-06-08

申请人： Tetsu Konishi ,  Ryotaro Magoshi

发明人： Tetsu Konishi ,  Ryotaro Magoshi

IPC分类号： F01D5/02 ,  B23K9/26 ,  F01D5/06 ,  F01D25/00

CPC分类号： B23P15/006 ,  F01D5/063 ,  B23K2201/001 ,  B23K2203/04 ,  B23K2203/05 ,  B23K2203/18

摘要： A steam turbine different material welded rotor, constructed by rotors of different materials being jointed together by welding has the strength of a jointed portion increased and inspection of the jointed portion facilitated. A bearing portion rotor 1 and high temperature portion rotor 2 are jointed at weld portion A, the high temperature portion rotor 2 and low temperature portion rotor 3 at weld portion B and the low temperature portion rotor 3 and bearing portion rotor 4 at weld portion C. Cavity portions 5, 6 are formed in the weld portions B, C, respectively. Inspection holes 7, 8 are also provided in the weld portions B, C. The high temperature portion rotor 2 is made of high heat resistant 12Cr steel and other rotors are made of low alloy steel, wherein the rotor 1 is of 2.multidot.1/4 CrMoV steel and the rotors 3, 4 are of 3.multidot.1/2 NiCrMoV steel. Thus, the materials are less expensive and inspection of the weld portions becomes facilitated by the inspection holes 7, 8 and the cavity portions 5, 6.

摘要翻译： 由不同材料转子构成的蒸汽涡轮机不同材料的焊接转子通过焊接接合在一起，具有接合部分的强度增加，并且接合部分的检查变得容易。 轴承部分转子1和高温部分转子2在焊接部分A，高温部分转子2和低温部分转子3处在焊接部分B和低温部分转子3以及轴承部分转子4的焊接部分C 分别在焊接部分B，C中形成腔部5,6。 检查孔7,8也设置在焊接部分B，C中。高温部分转子2由高耐热12Cr钢制成，其他转子由低合金钢制成，转子1为2x + E， 1/4 + EE CrMoV钢，转子3,4分别为3x + E，1/2 + EE NiCrMoV钢。 因此，材料成本较低，并且通过检查孔7,8和空腔部5,6便可以使焊接部的检查变得容易。

公开(公告)号：US20050236079A1

公开(公告)日：2005-10-27

申请号：US11115159

申请日：2005-04-27

申请人： Shigeki Ueta ,  Toshiharu Noda ,  Ryuichi Yamamoto ,  Yoshikuni Kadoya ,  Ryotaro Magoshi ,  Shin Nishimoto

发明人： Shigeki Ueta ,  Toshiharu Noda ,  Ryuichi Yamamoto ,  Yoshikuni Kadoya ,  Ryotaro Magoshi ,  Shin Nishimoto

IPC分类号： C22C19/03 ,  C22C19/05 ,  C22F1/00 ,  C22F1/10

CPC分类号： C22C19/056 ,  C22C19/03 ,  C22C19/057 ,  C22C19/058 ,  C22F1/10

摘要： The present invention provides a method for producing a low thermal expansion Ni-base superalloy, which includes: preparing an alloy including, by weight %, C: 0.15% or less, Si: 1% or less, Mn: 1% or less, Cr: 5 to 20%, at least one of Mo, W and Re, which satisfy the relationship Mo+½(W+Re): 17 to 27%, Al: 0.1 to 2%, Ti: 0.1 to 2%, Nb and Ta, which satisfy the relationship Nb+Ta/2: 1.5% or less, Fe: 10% or less, Co: 5% or less, B: 0.001 to 0.02%, Zr: 0.001 to 0.2%, a reminder of Ni and inevitable components; subjecting the alloy to a solution heat treatment under the condition of at a temperature of 1000 to 1200° C.; subjecting the alloy to either a carbide stabilizing treatment for making aggregated carbides on grain boundaries and stabilizing the carbides under the conditions of at a temperature of not less than 850° C. and less than 1000° C. and for 1 to 50 hours, or a carbide stabilizing treatment for making aggregated carbides on grain boundaries and stabilizing the carbides by cooling from the temperature in the solution heat treatment to 850° C. at a cooling rate of 100° C. or less per hour; subjecting the alloy to a first aging treatment for precipitating γ′ phase under the conditions of at a temperature of 720 to 900° C. and for 1 to 50 hours; and subjecting the alloy to a second aging treatment for precipitating A2B phase under the conditions of at a temperature of 550 to 700° C. and for 5 to 100 hours.

摘要翻译： 本发明提供一种低热膨胀型Ni基超合金的制造方法，其特征在于，包括：以重量％计含有C：0.15％以下，Si：1％以下，Mn：1％以下的合金， Cr：5〜20％，满足Mo +½（W + Re）：17〜27％，Al：0.1〜2％，Ti：0.1〜2％的Mo，W和Re中的至少一种，Nb 和Ta，其满足Nb + Ta / 2：1.5％以下的关系，Fe：10％以下，Co：5％以下，B：0.001〜0.02％，Zr：0.001〜0.2％，提示Ni 和不可避免的组成部分; 在1000〜1200℃的温度下对合金进行固溶热处理; 使合金进行碳化物稳定化处理，在晶界上形成凝集碳化物，并在不低于850℃且小于1000℃的温度和1至50小时的条件下稳定碳化物，或 碳化物稳定化处理，用于通过从固溶热处理中的温度冷却至850℃，以每小时100℃或更低的冷却速度使晶界上的聚集碳化物稳定化; 在720〜900℃的温度和1〜50小时的条件下对合金进行第一时效处理以使γ相析出; 并在550-700℃的温度和5〜100小时的条件下对该合金进行第二时效处理以沉淀A 2 B相。

公开(公告)号：US06322321B1

公开(公告)日：2001-11-27

申请号：US09428383

申请日：1999-10-28

申请人： Ryotaro Magoshi ,  Takashi Nakano

发明人： Ryotaro Magoshi ,  Takashi Nakano

IPC分类号： F01D902

CPC分类号： F01D9/047 ,  F01D25/10 ,  F01D25/26

摘要： A nozzle chamber warming-up structure comprises a ring mounted about a rotor of the turbine and defines an annular space surrounding the rotor. The annular spaced is divided by dividing walls into a plurality of steam chambers distributed circumferentially about the rotor, including first ad second upper steam chambers and at least one lower steam chamber. The dividing wall have holes such that steam supplied into the first upper steam chamber flows through the hole in one of the dividing walls into the one or more lower steam chambers, and then flows through The hole in another of the dividing walls into the second upper steam chamber. The steam that flows circumferentially around the ring and warms up the nozzle chamber uniformly.

摘要翻译： 喷嘴室预热结构包括围绕涡轮机的转子安装的环，并且限定围绕转子的环形空间。 环形间隔通过分隔壁分成围绕转子周向分布的多个蒸汽室，包括第一至第二上蒸汽室和至少一个下蒸汽室。 分隔壁具有孔，使得供应到第一上部蒸汽室中的蒸汽流过其中一个分隔壁中的孔进入一个或多个下部蒸汽室，然后流过另一个分隔壁中的孔进入第二上部 蒸汽室。 围绕环周向流动的蒸汽，均匀地加热喷嘴室。

公开(公告)号：US06273675B1

公开(公告)日：2001-08-14

申请号：US09428749

申请日：1999-10-28

申请人： Ryotaro Magoshi ,  Takashi Nakano

发明人： Ryotaro Magoshi ,  Takashi Nakano

IPC分类号： F01D2508

CPC分类号： F01D25/145 ,  F01D25/12 ,  F01D25/243

摘要： A cooling architecture for flanges of a steam turbine casing, which effectively cools the flanges coupled by bolts to prevent the leakage of the steam caused by a decrease of the fastening force of the bolts. An upper casing 10 and a lower casing 11 are joined together at flanges 12 and 13 which are fastened and secured by bolts to hermetically seal a steam turbine. Pipes 20 are secured so as to be contacted to the peripheral of the flanges 12 and 13, and a side heat insulator 15a is fitted thereto from the outer side. Each pipe 20 is arranged corresponding to each bolt, or a plurality of pipes are arranged corresponding to each bolt 14. The flanges 12 and 13 are heated by the internal high-temperature steam, the ambient air 30 is introduced into the pipe 20 from the lower end thereof due to the natural convection thereby to cool the flanges 12, 13 and the bolts 14. Accordingly, a decrease of the fastening force of the bolts, and steam leakage, hardly occur.

摘要翻译： 一种用于蒸汽轮机壳体的法兰的冷却结构，其有效地冷却由螺栓联接的凸缘，以防止由于螺栓的紧固力的减小引起的蒸汽泄漏。 上壳体10和下壳体11在凸缘12和13处接合在一起，这些凸缘12和13通过螺栓紧固并固定以气动密封蒸汽轮机。 管道20被固定成与凸缘12和13的周边接触，侧面隔热件15a从外侧装配到其中。 每个管道20对应于每个螺栓，或者对应于每个螺栓14布置的多个管道。凸缘12和13由内部高温蒸汽加热，环境空气30从管道20中引入 其下端由于自然对流，从而冷却凸缘12,13和螺栓14.因此，几乎不发生螺栓的紧固力的降低和蒸汽泄漏。

公开(公告)号：US06203270B1

公开(公告)日：2001-03-20

申请号：US09431661

申请日：1999-11-01

申请人： Ryotaro Magoshi

发明人： Ryotaro Magoshi

IPC分类号： F01D2524

CPC分类号： F01D25/285 ,  Y10T29/49318

摘要： There is provided a device for aiding transportation of a steam turbine which includes a rotor extending along a longitudinal axis and having multistage stationary and moving blades, a casing, supported by a base structure, for enclosing the rotor, bearings for rotationally supporting the rotor, and a pair of glands for sealing between the casing and the rotor, the casing including longitudinally opposite side flanges, the glands being mounted onto gland portions which are provided on the respective sides of the rotor outside of the casing and attached to the respective side flanges of the casing through a pair of flexible members, the device includes restrainers which are adapted to replace the glands after the glands are removed from the rotor and the casing. The restrainers are fitted onto the rotor where the glands had been mounted, and secured to the side flanges of the casing whereby the rotor and the casing are connected to each other to limit the relative movement therebetween and the restrainers bear the weight of the rotor with the bearings.

摘要翻译： 提供了一种用于辅助运输蒸汽轮机的装置，其包括沿着纵向轴线延伸的转子并具有多级固定和移动的叶片，由基部结构支撑的壳体，用于封闭转子，用于旋转地支撑转子的轴承， 以及用于在壳体和转子之间密封的一对压盖，壳体包括纵向相对的侧凸缘，压盖安装到压盖部分上，压盖部分设置在壳体的外侧的转子的相应侧上，并附接到相应的侧凸缘 通过一对柔性构件，该装置包括限制器，其适于在从转子和壳体移除压盖之后更换压盖。 将限制器安装在安装有密封圈的转子上，并固定到壳体的侧凸缘上，由此转子和壳体彼此连接以限制其间的相对运动，并且限制器承受转子的重量， 轴承。

公开(公告)号：US06846156B2

公开(公告)日：2005-01-25

申请号：US10433610

申请日：2002-06-04

申请人： Ryotaro Magoshi

发明人： Ryotaro Magoshi

IPC分类号： F01D5/18 ,  F01D9/02 ,  F01D9/04 ,  F01D11/04 ,  F01D11/24

CPC分类号： F02C7/18 ,  F01D5/18 ,  F01D5/186 ,  F01D11/24 ,  F01D25/14 ,  F05D2240/11 ,  F05D2260/2322

摘要： In a gas turbine, blade ring cooling passages are provided inside a first blade ring and a second blade ring. The blade ring cooling passages are connected with each other through a communication pipe that is arranged in an axial direction of the blade ring. From outside of a wheel chamber, cooling air to cool down stationary blades is sent with pressure into an inside of the stationary blades that are installed on an inner wall of the blade rings. Thermal shields are provided on outer surfaces of the blade rings and communication pipes through gaps therebetween. In the gaps between the outer surfaces of the blade rings or the outer surfaces of the communication pipes and the thermal shields, partitions are installed to stagnate the cooling air to cool down the stationary blades.

摘要翻译： 在燃气轮机中，叶片环冷却通道设置在第一叶片环和第二叶片环内。 叶片环冷却通道通过沿叶片环的轴向布置的连通管相互连接。 从车轮室的外部，将冷却空气冷却固定叶片的压力传送到安装在叶片环的内壁上的固定叶片的内部。 通过其间的间隙，在叶片环和连通管的外表面上提供热屏蔽。 在叶片环的外表面或连通管的外表面和热屏蔽之间的间隙中，安装隔板以使冷却空气停滞以冷却固定叶片。

公开(公告)号：US06772581B2

公开(公告)日：2004-08-10

申请号：US09748158

申请日：2000-12-27

申请人： Yasuhiro Ojiro ,  Kouichi Akagi ,  Ryotaro Magoshi ,  Hitoshi Morimoto ,  Shinya Hashimoto ,  Tadao Yashiki

发明人： Yasuhiro Ojiro ,  Kouichi Akagi ,  Ryotaro Magoshi ,  Hitoshi Morimoto ,  Shinya Hashimoto ,  Tadao Yashiki

IPC分类号： F02C300

CPC分类号： F02C7/16 ,  F01D11/24 ,  F01D25/12 ,  F05D2260/205 ,  F05D2260/2322

摘要： A gas turbine blade ring is cooled by steam whose temperature, pressure and flow rate are controlled so that a clearance between a moving blade tip and blade ring is maintained appropriately. Steam from a steam turbine bottoming cycle (10) flows into a blade ring cooling passage (8) of a gas turbine (1) via piping (12) for cooling the blade ring. The steam, having cooled the blade ring, is supplied into a transition piece cooling passage (9) of a combustor (3) for cooling the transition piece, and is then recovered into the steam turbine bottoming cycle (10) via piping (14). While the steam cools the blade ring, the temperature, pressure and flow rate of the steam are controlled so that thermal elongation of the blade ring is adjusted and the clearance at the moving blade tip is controlled so as to approach a target value. Thus, the clearance is maintained as small as possible in operation and the gas turbine performance is enhanced.

摘要翻译： 燃气轮机叶片环由其温度，压力和流速被控制的蒸汽冷却，使得动叶片尖端和叶片环之间的间隙适当地保持。 来自汽轮机底循环（10）的蒸汽经由用于冷却叶片环的管道（12）流入燃气轮机（1）的叶片环冷却通道（8）。 已经将叶片环冷却的蒸汽被供应到用于冷却过渡件的燃烧器（3）的过渡件冷却通道（9）中，然后通过管道（14）回收到蒸汽涡轮机底循环（10）中， 。 当蒸汽冷却叶片环时，控制蒸汽的温度，压力和流速，从而调节叶片环的热伸长并控制活动叶片尖端处的间隙以接近目标值。 因此，在操作中，间隙保持尽可能小，并且提高了燃气轮机的性能。

公开(公告)号：US06572114B1

公开(公告)日：2003-06-03

申请号：US09623366

申请日：2000-09-01

申请人： Ryotaro Magoshi ,  Tetsu Konishi ,  Zenichi Yoshida

发明人： Ryotaro Magoshi ,  Tetsu Konishi ,  Zenichi Yoshida

IPC分类号： F16J1544

CPC分类号： F02C7/28 ,  F01D11/025 ,  F05D2220/31 ,  F05D2230/64 ,  F16J15/442

摘要： A seal ring provided between a rotating portion and a fixed portion in a rotating machine of steam turbine and the like is improved to accurately carry out predetermined movement so as to not cause deterioration of sealing performance. The seal ring is split into upper, lower, right side and left side seal ring pieces slidably contacting with each other via split planes with spaces being formed in the respective split planes. Springs are interposed in the spaces for activation in upward and downward directions. The upper and lower seal ring pieces are engaged with seal ring guides and the right side and left side seal ring pieces are engaged with seal ring guides so that all of the seal ring pieces are slidable in the upward and downward directions. Further, on the respective tips of the seal ring guides spaces of the upper seal ring piece and spaces of the lower seal ring piece are formed and springs are provided in the spaces for activation in the upward and downward directions. The respective seal ring pieces are prevented from skirmishing with each other and the upper and lower seal ring pieces move toward the inner side at the time of load so as to make narrower the clearances between seal fins and a corresponding rotor surface.

摘要翻译： 提高了在蒸汽轮机等的旋转机械中的旋转部和固定部之间设置的密封环，能够精确地进行预定的运动，不会导致密封性能的劣化。 密封环被分成上，下，右侧和左侧的密封环片，它们通过分开的平面彼此可滑动地接触，在相应的分裂平面中形成有空间。 弹簧插入在空间中以在向上和向下的方向上激活。 上密封环和下密封圈片与密封环导轨接合，右侧和左侧密封环件与密封环导向件接合，使得所有的密封环件可沿上下方向滑动。 此外，在密封环的各个末端处，形成上密封环片和下密封环片的空间的空间，并且弹簧设置在用于在上下方向上致动的空间中。 防止各密封圈片彼此冲撞，并且上，下密封环件在负载时向内侧移动，从而使得密封片与相应的转子表面之间的间隙变窄。

公开(公告)号：US06341937B1

公开(公告)日：2002-01-29

申请号：US09430847

申请日：1999-11-01

申请人： Ryotaro Magoshi ,  Takashi Nakano

发明人： Ryotaro Magoshi ,  Takashi Nakano

IPC分类号： F01D2526

CPC分类号： F01D25/26 ,  F01D25/12

摘要： A steam turbine includes a rotor which extends along a longitudinal axis and having at least two different pressure turbine portions disposed around and along the rotor. Each of the turbine portions has multiple stages. A casing encloses the rotor and has at least one steam inlet. A dummy ring is provided stationarily around the rotor to separate and seal between the two different pressure turbine portions. The dummy ring defines nozzle chamber for receiving the steam from the steam inlet port and a plurality of nozzles for directing the steam from the nozzle chamber toward the higher pressure turbine portion. The dummy ring and the casing define a space therebetween. The space is fluidly connected to the higher pressure turbine portion. A steam passage extends between the space and a steam passage downstream of the last stage of the higher pressure turbine portion. The steam passage allows the steam within the space to flow to the steam passage downstream of the last stage of the higher pressure turbine portion to cool the casing.

摘要翻译： 蒸汽轮机包括沿着纵向轴线延伸并具有绕转子设置的至少两个不同的压力涡轮机部分的转子。 每个涡轮部分具有多个级。 壳体包围转子并具有至少一个蒸汽入口。 围绕转子静止地设置一个虚拟环，以在两个不同的压力涡轮机部分之间分离和密封。 虚拟环限定用于从蒸汽入口接收蒸汽的喷嘴室和用于将来自喷嘴室的蒸汽引向较高压力的涡轮机部分的多个喷嘴。 虚拟环和外壳在其间限定一个空间。 空间流体地连接到较高压力的涡轮机部分。 蒸汽通道在高压涡轮机部分的最后阶段下游的空间和蒸汽通道之间延伸。 蒸汽通道允许空间内的蒸汽流到高压涡轮机部分的最后阶段下游的蒸汽通道以冷却壳体。