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1. 发明专利

JP2012067604A Exhaust chamber of steam turbine and its modification method 审中-公开
标题翻译：蒸汽涡轮排气室及其改造方法
公开(公告)号：JP2012067604A
公开(公告)日：2012-04-05
申请号：JP2010210354
申请日：2010-09-21
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIZUMI SHUNSUKE , RI HIROMOTO
IPC分类号： F01D25/24 , F01D25/30
摘要： PROBLEM TO BE SOLVED: To provide an exhaust chamber of a steam turbine that achieves a big diffuser effect without the change of accuracies of a current manufacture and assembly, and free from the effect of a clearance flow between a flow guide and a center rib, and as a result, increases the efficiency of a turbine plant.SOLUTION: The exhaust chamber of the steam engine includes: an exhaust chamber inside casing including a turbine rotor; an annular flow guide installed continuously in the outer circumference of the exhaust chamber inside casing, in the downstream of a rotor blade constituting a final paragraph fixed to the turbine rotor; an exhaust chamber outside casing enclosing the exhaust chamber inside casing and the flow guide; and the center rib extending in the direction of a rotor shaft installed in the exhaust chamber outside casing. A clearance flow prevention member installed in a fitting part of the flow guide and the center rib, and caulking a clearance formed in the fitting part, is provided in the exhaust chamber of the turbine, which introduces exhaust after driving a turbine, into a downward condenser.
摘要翻译：要解决的问题：为了提供一种蒸汽涡轮机的排气室，其实现大的扩散器效应，而不会改变当前的制造和组装的精度，并且不受流动引导件和流体导管之间的间隙流动的影响中心肋骨，结果提高了涡轮机厂的效率。蒸汽发动机的排气室包括：包括涡轮机转子的壳体内的排气室; 环形流动导向装置，其连续地安装在排气室内壳体的外周中，在构成最后段的转子叶片的下游固定在涡轮转子上; 包围外壳内的排气室的外部排气室和流动引导件; 并且所述中心肋沿安装在所述排气室外壳体中的转子轴的方向延伸。在涡轮机的排气室中设置有安装在流动引导件和中心肋的配合部分中并且形成在配合部分中形成的间隙的间隙防止流动构件，其将驱动涡轮机后的排气引入向下冷凝器。版权所有（C）2012，JPO＆INPIT

2. 发明专利

JP2013155725A Steam turbine and stationary blade of steam turbine 审中-公开
标题翻译：蒸汽涡轮机和蒸汽涡轮机静态叶片
公开(公告)号：JP2013155725A
公开(公告)日：2013-08-15
申请号：JP2012019416
申请日：2012-02-01
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIZUMI SHUNSUKE , OGATA KOJI , KUDO TAKESHI , NAKANO SUSUMU
IPC分类号： F01D9/02
摘要： PROBLEM TO BE SOLVED: To provide a steam turbine having high reliability by suppressing corrosion of moving blade due to erosion, by reducing the generation of coarse water droplets jetted out of a rear edge of a turbine blade and micronizing the coarse water droplets without reducing plant efficiency.SOLUTION: A steam turbine includes a stationary blade and a moving blade which is provided at a downstream side in a flowing direction of a working fluid of the stationary blade. In the steam turbine, an uneven surface 20 having a fine uneven pattern is formed on a rear edge side surface of the stationary blade 1. By positively ruffling up a liquid surface with the uneven surface, before growing a liquid film large, instability can be produced, thereby performing scattering as fine droplets. An energy source from the outside is not required, either, a groove size can also be reduced and blade performance is not almost affected, thereby effectively achieving the purpose.
摘要翻译：要解决的问题：通过减少从涡轮机叶片的后缘喷出的粗水滴的产生并且在不减少植物的情况下微粉化粗水滴来提供具有高可靠性的蒸汽轮机，其通过抑制由于侵蚀而引起的动叶片的腐蚀效率。解决方案：蒸汽轮机包括固定叶片和活动叶片，其设置在固定叶片的工作流体的流动方向的下游侧。在蒸汽轮机中，在静止叶片1的后缘侧面上形成有具有微细凹凸图案的凹凸面20.通过使不均匀的表面积液化，液体膜生长前的不稳定性可以是从而作为细小液滴进行散射。不需要来自外部的能量源，也可以减小槽尺寸，并且叶片性能几乎不受影响，从而有效地实现目的。

3. 发明专利

JP2010216321A Moving blade of steam turbine, and steam turbine using the same 审中-公开
标题翻译：蒸汽涡轮机的运动叶片和使用它的蒸汽涡轮机
公开(公告)号：JP2010216321A
公开(公告)日：2010-09-30
申请号：JP2009062229
申请日：2009-03-16
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ONO HIDEKI , MIZUMI SHUNSUKE , MURATA KENICHI
IPC分类号： F01D5/20 , F01D5/14 , F01D11/08 , F01D25/32
CPC分类号： F01D5/225 , F01D5/143 , F05D2220/31 , F05D2250/232
摘要： PROBLEM TO BE SOLVED: To provide a moving blade of a steam turbine capable of shortening the axial length of the turbine while suppressing the occurrence of loss due to separation of flow or secondary flow and suppressing degradation in turbine efficiency. SOLUTION: In the steam turbine including: a turbine rotor 7; a moving blade 1 secured to the turbine rotor 7; a shroud 3 provided on an outer circumferential side distal end of the moving blade 1; and an outer circumferential side stationary wall 4 internally embracing the turbine rotor 7 and forming an outer circumferential side passage wall of a steam passage, the shroud 3 has an inner circumferential surface 14 so formed that a moving blade outlet flare angle α 3 is greater than a moving blade inlet flare angle α 2 ; an angle α 1 formed between the outer circumferential side stationary wall 4 adjacent to the upstream side of the moving blade 1 and the turbine central axis 50 is generally equal to the moving blade inlet flare angleα 2 ; and an angle α 4 formed between the outer circumferential side stationary wall adjacent to the downstream side of the moving blade and an turbine central axis 50 is generally equal to the moving blade outlet flare angle α 3 . COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够缩短涡轮机的轴向长度的汽轮机的动叶片，同时抑制由于流动或二次流的分离而导致的损失的发生，并且抑制涡轮效率的降低。在蒸汽涡轮机中，包括：涡轮转子7; 固定在涡轮转子7上的动叶片1; 设置在动叶片1的外周侧前端的护罩3; 外周侧固定壁4内部包围涡轮转子7并形成蒸汽通道的外周侧通道壁，护罩3具有内周面14，内周面14形成为使活动叶片出口张力角α<3> 大于移动叶片入口喇叭角α 2 ; 在与活动叶片1的上游侧相邻的外周侧静止壁4与涡轮机中心轴50之间形成的角度α 1 大体上等于动叶片入口张开角α 2 ; 并且形成在与动叶片的下游侧相邻的外周侧固定壁与涡轮机中心轴线50之间形成的角度α 4 大体上等于动叶片出口张口角α3 。版权所有（C）2010，JPO＆INPIT

4. 发明专利

JP2009133254A Exhaust chamber for steam turbine 审中-公开
标题翻译：蒸汽涡轮排气室
公开(公告)号：JP2009133254A
公开(公告)日：2009-06-18
申请号：JP2007309896
申请日：2007-11-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIZUMI SHUNSUKE , KIMURA TETSUAKI
IPC分类号： F01D25/30
摘要： PROBLEM TO BE SOLVED: To provide an exhaust chamber for a steam turbine providing large diffuser effect without having a complicated structure.
SOLUTION: This chamber has a structure setting a pipe diameter of a joint part 3a1 of a steam guide 3a forming a diffuser channel 3b in the exhaust chamber 3 not greater than rotation radius R of a moving blade 2b, and inhibiting growth of a boundary layer in the diffuser channel 3b at an inlet part of the exhaust chamber 3. Since the boundary layer grows to the diffuser channel 3b at a position progressing from the joint part 3a1 of the steam guide 3a, large diffuser effect can be provided in the diffuser channel 3b, and a low pressure turbine 2 can be efficiently driven.
COPYRIGHT: (C)2009,JPO&INPIT
摘要翻译：要解决的问题：提供一种提供大漫射效果的蒸汽轮机的排气室，而不会有复杂的结构。解决方案：该室具有将排气室3中形成扩散通道3b的蒸汽引导件3a的接头部分3a1的管径设定为不大于活动叶片2b的旋转半径R的结构，并且抑制生长在排气室3的入口部分处的扩散通道3b中的边界层。由于边界层在从蒸汽引导件3a的接合部分3a1前进的位置处生长到扩散器通道3b，所以可以提供大的扩散器效应可以有效地驱动扩散通道3b和低压涡轮机2。版权所有（C）2009，JPO＆INPIT

5. 发明专利

JP2014125986A Seal device, and rotary machine using the same 审中-公开
标题翻译：密封装置和使用其的旋转机
公开(公告)号：JP2014125986A
公开(公告)日：2014-07-07
申请号：JP2012283853
申请日：2012-12-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIZUMI SHUNSUKE , KUDO TAKESHI
IPC分类号： F01D11/02 , F02C7/28 , F16J15/447
摘要： PROBLEM TO BE SOLVED: To provide a seal ring of a rotary machine capable of reducing unnecessary leakage and improving turbine plant efficiency by minimizing reduction of the number of sheets of effective seal fins to a seal ring capable of preventing a blowing-through state of working fluid due to existence of a clearance gap of the entire butting faces while having an allowance in dimensional tolerance in manufacturing.SOLUTION: In a seal device of a rotary machine which includes an annular seal ring 10, and a plurality of seal fins 12 axially disposed on an inner peripheral face of the seal ring, and in which the seal ring is composed of a plurality of segment bodies 7a, 7b annularly connected, peripheral end portions opposed to the adjacent segment body, of the segment bodies 7a 7b are provided with segment body joining structures composed of continuous steps formed into the stair shape when observed from the radial direction.
摘要翻译：要解决的问题：提供一种旋转机械的密封环，其能够通过将有效的密封翅片的片数减少到能够防止工作的通风状态的密封环的减少而减少不必要的泄漏并提高涡轮机设备效率由于存在整个对接面的间隙的同时在制造中具有尺寸公差的余量。解决方案：在旋转机械的密封装置中，其包括环形密封环10和轴向设置的多个密封翅片12 在密封环的内周面上，分隔体体7a 7b的与环状连接的多个分段体7a，7b与相邻的分段体相对的周向端部与密封环的内周面形成有分段当从径向方向观察时，由形成阶梯形状的连续台阶组成的主体接合结构。

6. 发明专利

JP2014055577A Steam turbine stator blade and steam turbine 有权
标题翻译：蒸汽涡轮定子叶片和蒸汽涡轮机
公开(公告)号：JP2014055577A
公开(公告)日：2014-03-27
申请号：JP2012202139
申请日：2012-09-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHIBASHI KOJI , NAKANO SUSUMU , MIZUMI SHUNSUKE , KUDO TAKESHI
IPC分类号： F01D9/02 , F01D25/32
CPC分类号： F01D5/18 , F01D5/145 , F01D9/041 , F01D25/32 , F05D2220/31 , F05D2240/124 , F05D2240/125 , F05D2240/127 , Y02T50/673 , Y02T50/676
摘要： PROBLEM TO BE SOLVED: To provide a steam turbine stator blade capable of efficiently separating a water screen on a blade surface and capable of reducing erosion of a moving blade, and a steam turbine.SOLUTION: A plurality of rows of slits different in width are provided on a blade surface of a stator blade. More specifically, a blade with a hollow structure, which is connected with a space passing through an outer or inner ring of a diaphragm, and a plurality of rows of suction slits, which are radially elongated on the surface of the blade, are installed in a steam turbine stator blade. The slit width of each row is set small in a position in which a water screen adhering to the blade surface is thick, and set great in a position in which the water screen is thin.
摘要翻译：要解决的问题：提供一种能够有效地分离叶片表面上的水屏并能够减少活动叶片和蒸汽轮机的侵蚀的汽轮机定子叶片。解决方案：宽度不同的多排狭缝是设置在定子叶片的叶片表面上。更具体地说，在叶片的表面上径向伸长的具有中空结构的叶片，其与通过隔膜的外环或内环的空间连接，以及多排抽吸狭缝被安装在汽轮机定子叶片。每个排的狭缝宽度在粘附在叶片表面上的水屏厚度较大的位置被设定得较小，并且在水屏薄的位置处设置得很大。

7. 发明专利

JP2014005813A Exhaust chamber of steam turbine and its remodeling method 有权
标题翻译：蒸汽涡轮排气室及其重构方法
公开(公告)号：JP2014005813A
公开(公告)日：2014-01-16
申请号：JP2012143679
申请日：2012-06-27
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIZUMI SHUNSUKE , OGATA KOJI , KUDO TAKESHI
IPC分类号： F01D25/30
CPC分类号： F01D25/30 , F02C1/06 , F02C3/02 , F02C3/30 , F02C5/06 , F02C7/08 , F02C7/24 , F02K1/04 , F02K1/08 , F02K1/68 , F02K9/28 , F02K9/30 , F02K9/82 , F05D2270/08 , F05D2270/0831
摘要： PROBLEM TO BE SOLVED: To exert high diffuser effect and to improve plant efficiency at low costs without changing present manufacturing/assembling accuracy.SOLUTION: In an exhaust chamber of a steam turbine provided with an exhaust chamber internal casing 2 including a turbine rotor 1, an annular flow guide 6 disposed at a downstream side of a rotor blade 10 fixed to the turbine rotor 1 and configuring a final stage, continuously from an outer peripheral portion of the exhaust chamber internal casing 2, and an exhaust chamber external casing 5 surrounding the exhaust chamber internal casing 2 and the flow guide 6, and guiding the exhaust after driving a turbine, to a steam condenser at a lower portion, the flow guide 6 is divided into upper and lower halves on a horizontal connection face passing through a center of a rotor shaft, guide faces of the upper half-flow guide 7 and the lower half-flow guide 8 are respectively composed of curved surfaces formed by rotating individual curved lines of different shapes about the rotor shaft, and a closing member 40 is disposed to horizontally close a clearance gap horizontally formed on a connecting portion of the upper half-flow guide and the lower half-flow guide.
摘要翻译：要解决的问题：发挥高扩散效应，以低成本提高工厂效率，而不改变现有的制造/组装精度。解决方案：在具有包括涡轮转子1的排气室内部壳体2的蒸汽轮机的排气室中，设置在固定在涡轮转子1上的转子叶片10的下游侧并且从排气室内部壳体2的外周部连续构成最终级的环形流动引导件6和围绕该排气室内部壳体2的排气室外部壳体5。排气室内部壳体2和流动引导件6，并且在驱动涡轮机之后将排气引导到下部的蒸汽冷凝器，流动引导件6在穿过中心的水平连接面上被分成上半部和下半部转子轴，上半流引导件7和下半流引导件8的引导面分别由弯曲表面形成，围绕转子轴的不同形状的线，以及关闭构件40设置成水平地闭合水平地形成在上半导向件和下半流动引导件的连接部分上的间隙。

8. 发明专利

JP2012145081A Exhaust system of steam turbine 有权
标题翻译：蒸汽轮机排气系统
公开(公告)号：JP2012145081A
公开(公告)日：2012-08-02
申请号：JP2011006088
申请日：2011-01-14
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIZUMI SHUNSUKE , OGATA KOJI , KUDO TAKESHI , NISHIJIMA NORIYO , ONDA YOSHIAKI
IPC分类号： F01D25/30
CPC分类号： F01D25/30 , F01D25/24 , F05D2250/52 , F05D2250/73
摘要： PROBLEM TO BE SOLVED: To provide an exhaust system of a steam turbine which improves turbine plant efficiency by suppressing turbulence of the flow in an exhaust chamber by raising a function of the annular flow guide of a high-pressure turbine and an intermediate-pressure turbine, thereby reducing pressure loss.SOLUTION: The shape (vertically symmetric) of a flow guide 5A according to a conventional technology was modified into the shape (vertically asymmetric) of a flow guide 5 such that the length of a downstream flow guide portion 5d is greater than that of a upstream flow guide portion 5u. Numerical analyses were performed to find the optimum flow guide occupation ratio of the conventional technology and the corresponding total pressure loss coefficient. The obtained values were used as reference values. Further, the flow guide occupation ratio of the upstream flow guide portion 5u is set at 0.4 and the flow guide occupation ratio of the downstream flow guide portion 5d is set at 0.7; at values where the total pressure loss coefficient becomes lower than the reference value. The rectification effect of the flow guide can thus be enhanced.
摘要翻译：要解决的问题：提供一种蒸汽涡轮机的排气系统，其通过提高高压涡轮机的环形导流器和中间体的功能来抑制排气室中的流动的紊流来提高涡轮机组的效率压力涡轮，从而减少压力损失。解决方案：根据传统技术的流动引导件5A的形状（垂直对称）被修改为导流器5的形状（垂直不对称），使得下游流动引导部分5d的长度大于的上游流动引导部5u。进行数值分析，找出常规技术的最佳流量指数占有率和相应的总压力损失系数。将获得的值用作参考值。此外，上游侧流动引导部5u的流动导向占有率为0.4，下游侧流动引导部5d的流动导向占有率为0.7，其中总压力损失系数变得低于参考值。因此可以提高导流管的整流效果。版权所有（C）2012，JPO＆INPIT

9. 发明专利

JP2014181571A Steam turbine 审中-公开
标题翻译：汽轮机
公开(公告)号：JP2014181571A
公开(公告)日：2014-09-29
申请号：JP2013054807
申请日：2013-03-18
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： YOSHIDA TAKUYA , MIZUMI SHUNSUKE , SUZUKI FUMIYUKI , NOMURA KENICHIRO , YAMANAKA KAZUNORI
IPC分类号： F01D25/24 , F01D9/04 , F01D11/00 , F01D25/00
摘要： PROBLEM TO BE SOLVED: To provide a steam turbine capable of contributing to shortening an operation stop period by curbing a difference in thermal expansion between a rotor and a casing.SOLUTION: A steam turbine comprises: a casing 10 which has annular concave sections 11 arranged in a direction of a turbine shaft on an inner peripheral surface thereof; a plurality of diaphragm outer rings 23 which contact with corresponding concave sections 11 of the casing 10 in the direction of the turbine shaft; nozzles 22 which are fixed to the inner peripheral sections of respective diaphragm outer rings 23; a rotor 30 which has blades 32 facing opposite to the corresponding nozzles 22 in the direction of the turbine shaft on an outer peripheral section thereof; and steam flow passages 53 which connect spaces at an outer peripheral side and at an inner peripheral side of contact surfaces 52 between the casing 10 and the diaphragm outer rings 23.
摘要翻译：要解决的问题：提供一种能够通过限制转子和壳体之间的热膨胀差而有助于缩短操作停止时间的蒸汽轮机。蒸汽轮机包括：壳体10，其具有环形凹部11，其布置成在涡轮机轴的内周面上的方向; 多个隔膜外圈23，其与涡轮轴的方向上的壳体10的相应的凹部11接触; 固定在各隔膜外圈23的内周部的喷嘴22; 转子30，其具有在涡轮轴的外周部分上与涡轮轴方向相对的相应喷嘴22的叶片32; 以及将壳体10和隔膜外圈23之间的接触面52的外周侧和内周侧的空间连接的蒸汽流路53。

10. 发明专利

JP2014025443A Steam turbine and steam turbine stator vane 有权
标题翻译：蒸汽涡轮机和蒸汽涡轮机定子风扇
公开(公告)号：JP2014025443A
公开(公告)日：2014-02-06
申请号：JP2012167902
申请日：2012-07-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： NAKANO SUSUMU , MIZUMI SHUNSUKE , KUDO TAKESHI , SAKAKIBARA KAZUYA , ISHIBASHI KOJI , MATSUDA MASAKI
IPC分类号： F01D9/02 , F01D25/00 , F01D25/32
CPC分类号： F01D5/28 , F01D5/147 , F01D25/32 , F05D2240/122
摘要： PROBLEM TO BE SOLVED: To provide a stator vane structure for a steam turbine to eliminate a liquid film generated on a stator vane surface to reduce rotor blade erosion caused by collision of water droplets generated from wet steam.SOLUTION: To attain the above-described object, in a steam turbine having a turbine stage including stator vanes 1 and rotor blades 2 provided downstream of the stator vanes in a working fluid flow direction, the stator vane is formed in a hollow vane shape by plastically deforming a metal plate, and a slit 24 is formed by overlaying an airfoil suction side metal plate and an airfoil pressure side metal plate with a gap therebetween in the tail section 8 of the stator vane 1, so that the slit guides liquid droplets stuck on a vane surface into the stator vane.
摘要翻译：要解决的问题：提供一种用于蒸汽轮机的定子叶片结构，以消除在定子叶片表面上产生的液膜，以减少由湿蒸汽产生的水滴碰撞引起的转子叶片侵蚀。解决方案：为了达到上述目的目的是在具有涡轮级的蒸汽轮机中，该涡轮级包括定子叶片1和设置在工作流体流动方向上的定子叶片下游的转子叶片2，定子叶片通过使金属板塑性变形而形成为中空叶片形状，狭缝24通过在定子叶片1的尾部8中覆盖翼型吸入侧金属板和翼型压力侧金属板之间具有间隙而形成，使得狭缝将粘附在叶片表面上的液滴引导到定子叶片。

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