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1. 发明专利

JP2013015018A Turbine stator vane designing method, turbine stator vane, and steam turbine device using turbine stator vane 审中-公开
标题翻译：涡轮定子风扇设计方法，涡轮定子风扇和使用涡轮定子风扇的蒸汽涡轮机装置
公开(公告)号：JP2013015018A
公开(公告)日：2013-01-24
申请号：JP2009223604
申请日：2009-09-29
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： KIMURA SEIICHI , SEGAWA KIYOSHI , KISHIBE TADAHARU , KANO YOSHIO , RI HIROMOTO
IPC分类号： F01D9/02
CPC分类号： F01D9/041 , F01D5/141
摘要： PROBLEM TO BE SOLVED: To provide a turbine stator vane having a low aspect ratio, configured to reduce sidewall loss and improve stage efficiency.SOLUTION: The turbine stator vane, which is for an axial flow turbine, is a low-aspect-ratio stator vane, and has a s/t value (s:throat length, t:pitch length) distribution formed in an arciform manner from the root of the vane to the tip of the vane in the height direction of the vane. The s/t value is maximum between the center and the tip of the vane in the height direction of the vane, and is minimum at the root of the vane. The s/t value at the tip of the vane is determined so as to be not less than the intermediate value between the maximum s/t value and the minimum s/t value and less than the maximum s/t value, and the s/t value at the root of the vane is determined so as to be not less than 65% of the maximum s/t value and less than the s/t value at the root of the vane when designing a free vortex.
摘要翻译：要解决的问题：提供一种具有低纵横比的涡轮机定子叶片，其被配置为减少侧壁损失并提高阶段效率。解决方案：用于轴流式涡轮机的涡轮机定子叶片是低纵横比定子叶片，并且具有以弧形形成的as / t值（s：喉部长度，t：节距长度）分布在叶片的高度方向上从叶片的根部到叶片的尖端的方式。在叶片的高度方向上叶片的中心和尖端之间的s / t值是最大的，并且在叶片的根部处最小。叶片尖端的s / t值被确定为不小于最大s / t值和最小s / t值之间的中间值并小于最大s / t值，s 在设计自由涡流时，确定叶片根部的/ t值不小于最大s / t值的65％，小于叶片根部的s / t值。版权所有（C）2013，JPO＆INPIT

2. 发明专利

JP2011196294A Turbine inlet structure of double flow type steam turbine, and double flow type steam turbine using the same 有权
标题翻译：双流式蒸汽涡轮机的涡轮入口结构和使用其的双流式蒸汽涡轮机
公开(公告)号：JP2011196294A
公开(公告)日：2011-10-06
申请号：JP2010065414
申请日：2010-03-23
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
摘要： PROBLEM TO BE SOLVED: To provide an axial flow turbine improving the turbine plant efficiency by correcting nonuniformalization of the circumferential distribution of a flow flowing in a turbine first stage from the inside of an axial flow turbine inlet structure.SOLUTION: The turbine inlet structure of a double flow type steam turbine includes a steam introduction part 13 connecting with a downstream side in the steam flow direction of steam supply piping 7, and a ring-shaped flow passage connecting at a part on the outer peripheral side with the steam introduction part 13 and connecting at the inner peripheral side with a turbine stage inlet. A steam flow passage leading from a connection between the steam supply piping 7 and the steam introduction part 13 to the ring-shaped flow passage is constructed so that in the area of a flow passage cross section orthogonal to a steam main flow reduces toward the downstream and then increases again.
摘要翻译：要解决的问题：提供一种通过校正在涡轮机第一级从轴流式涡轮机入口结构的内部流动的流动的周向分布的非均匀化来提高涡轮机设备效率的轴流涡轮机。解决方案：涡轮机入口结构双流型蒸汽轮机包括与蒸汽供给配管7的蒸汽流动方向的下游侧连接的蒸汽导入部13和在外周侧的一部分与蒸汽导入部13连接的环状流路并且在内周侧与涡轮级入口连接。从蒸汽供给配管7与蒸汽导入部13的连接部到环状流路的蒸汽流路构成为在与主蒸汽正交的流路截面的区域向下游侧然后再次增加。

3. 发明专利

JP2011069265A Turbine inlet structure and double flow type steam turbine using the same 审中-公开
标题翻译：涡轮入口结构和双流式蒸汽涡轮机
公开(公告)号：JP2011069265A
公开(公告)日：2011-04-07
申请号：JP2009219900
申请日：2009-09-25
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： F01D9/06 , F01D25/24
摘要： PROBLEM TO BE SOLVED: To provide an axial flow turbine improving the turbine plant efficiency by correcting unevenness of the circumferential distribution of a flow flowing in a turbine first stage while reducing a flow resistance inside of an axial flow turbine inlet structure.
SOLUTION: The turbine inlet structure of a double flow type steam turbine includes in the turbine inlet structure: a steam flow passage 38 formed downward in a flattened shape; stage inlet covers 23 respectively formed in the opposite side walls of a steam flow passage central part in the turbine axial direction and composing a turbine stage inlet 24 which communicates with a turbine stage for flow of steam supplied from steam supply piping and divided into two in the turbine circumferential direction; and a plurality of first reinforcing ribs 44 provided toward the circumferential direction on the outer periphery of the lower half of the turbine stage inlet and having a circular cross section flattened to be convex toward the turbine axis.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种通过校正在涡轮机第一阶段中流动的流动的周向分布的不均匀性，同时降低轴流涡轮机入口结构内部的流动阻力来提高涡轮机组效率的轴流涡轮机。解决方案：双流型蒸汽轮机的涡轮机入口结构包括在涡轮机入口结构中：蒸汽流动通道38，其以扁平形状向下形成; 分别形成在蒸汽流路中心部分的涡轮轴向方向的相对侧壁中的台阶入口盖23，并且构成涡轮级入口24，涡轮级入口24与涡轮级连通，用于从蒸汽供应管道供应的蒸汽流，并分为两部分涡轮机周向; 以及在涡轮级入口的下半部的外周面朝向圆周方向设置的多个第一加强筋44，并且具有平坦化以朝向涡轮机轴线凸出的圆形横截面。版权所有（C）2011，JPO＆INPIT

4. 发明专利

JP2014163368A Axial flow steam turbine, and method of remodeling axial flow steam turbine 审中-公开
标题翻译：轴流式蒸汽涡轮机，以及重新旋转轴流式蒸汽涡轮机的方法
公开(公告)号：JP2014163368A
公开(公告)日：2014-09-08
申请号：JP2013038124
申请日：2013-02-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SATO KOMA , RI HIROMOTO , OGATA KOJI
IPC分类号： F01D25/30 , F01D25/26
摘要： PROBLEM TO BE SOLVED: To simplify a structure inside of an exhaust chamber and to improve performance of the exhaust chamber without degrading assembling/maintenance performances, in the exhaust chamber of a low-pressure steam turbine.SOLUTION: An axial flow steam turbine includes: a low-pressure steam turbine; and a turbine exhaust device for guiding steam flow passing through a final stage of the low-pressure steam turbine to a condenser disposed below the low-pressure steam turbine. The turbine exhaust device has an inner cabin casing 2 including a turbine rotor of the low-pressure steam turbine, an outer cabin casing 1 including the inner cabin casing, and forming a flow channel to guide the steam flow, and an inner cabin supporting member 5 extended toward a side wall of the outer cabin casing and supporting the inner cabin casing. A steam vent hole 20 is formed on an end portion at an outer cabin side wall-side, of the inner cabin supporting member.
摘要翻译：要解决的问题：为了简化排气室内部的结构，并且在低压汽轮机的排气室中，不会降低组装/维护性能，提高排气室的性能。解决方案：一种轴流式汽轮机，包括：低压蒸汽轮机; 以及用于将通过低压蒸汽轮机的最后级的蒸汽流引导到设置在低压蒸汽轮机下方的冷凝器的涡轮机排气装置。涡轮排气装置具有包括低压蒸汽轮机的涡轮转子的内舱壳体2，包括内舱壳体的外舱壳体1，并形成引导蒸汽流的流路，以及内舱支承部件 5朝向外舱外壳的侧壁延伸并支撑内舱壳体。蒸汽通气孔20形成在内舱支撑构件的外舱侧壁侧的端部上。

5. 发明专利

JP2014015858A Axial flow turbine rotor blade 有权
标题翻译：轴流式涡轮转子叶片
公开(公告)号：JP2014015858A
公开(公告)日：2014-01-30
申请号：JP2012152004
申请日：2012-07-06
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUKUSHIMA HISATAKA , SHIBATA TAKANORI , SEGAWA KIYOSHI , KIMURA SEIICHI , RI HIROMOTO
IPC分类号： F01D5/14
摘要： PROBLEM TO BE SOLVED: To provide an axial flow turbine rotor blade capable of reducing a blade profile loss by matching a blade geometric inlet angle and a working fluid inflow angle while considering change in the radial direction of the inflow angle near an end wall portion, and simultaneously reducing secondary flow loss by decreasing a warpage angle of the blade profile near the end wall portion, and lowering blade load near the end wall portion, in the axial flow turbine.SOLUTION: When an angle between a half line obtained by extending a blade camber line of the turbine blade from a front edge to an upstream side and the circumferential direction is defined as an inlet angle α, and an angle between a half line obtained by extending the blade camber line of the turbine blade from a rear edge to a downstream side and the circumferential direction is defined as an outlet angle β in the turbine rotor blade of the axial flow turbine, the turbine rotor blade is constituted so that a distribution of the inlet angle α and the outlet angle β in the blade height direction has a maximum value in a blade root region, and a rate of change in a blade tip region is determined to be larger than a rate of change in a blade mid-span region.
摘要翻译：要解决的问题：提供一种轴流式涡轮转子叶片，其能够考虑到靠近端壁部的流入角度的径向变化，通过使叶片几何入口角度和工作流体流入角度匹配来减小叶片轮廓损失，同时通过减小端壁部分附近的叶片轮廓的翘曲角度以及在轴流涡轮机中降低端壁部分附近的叶片负荷来同时减小二次流动损失。解决方案：当通过延伸a 涡轮机叶片的叶片外倾线从前边缘到上游侧，圆周方向被定义为入口角α，并且通过将涡轮叶片的叶片外倾线从后边缘延伸到下游侧和圆周方向被定义为出口角度＆bgr; 在轴流涡轮机的涡轮转子叶片中，涡轮转子叶片构成为使得入口角α和出口角度bgr的分布叶片高度方向在叶片根部区域中具有最大值，并且将叶片尖端区域的变化率确定为大于叶片中跨区域的变化率。

6. 发明专利

JP2008064041A Steam turbine 有权
标题翻译：汽轮机
公开(公告)号：JP2008064041A
公开(公告)日：2008-03-21
申请号：JP2006243543
申请日：2006-09-08
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： MIZUMI SHIYUNSUKE , IWANO RYUICHIRO , ISHIBASHI KOJI , RI HIROMOTO
IPC分类号： F01D25/24 , F01D25/00 , F01D25/12
CPC分类号： F01D9/06 , F01D9/00
摘要： PROBLEM TO BE SOLVED: To provide a steam turbine in which pressure loss occurring inside a tube is reduced and crossover tubes having a structure superior in strength.
SOLUTION: There provided is a steam turbine equipped with the crossover tubes 10 which supply steam discharged from a middle-pressure turbine 5 to lower-pressure turbines 6a, 6b. In the steam turbine, the middle-pressure turbine has two outlets 13a, 13b which discharge exhaust gas, and the lower-pressure turbines 6a, 6b has two inlets 14a, 14b. These outlets and inlets are arranged on the same straight line when these are viewed from a planar direction. The outlet and the inlet which are located close to each other and those which are located apart from each other are each connected by the crossover tubes 10a, 10b, which are located one above the other in a double-deck manner.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种蒸汽轮机，其中管内发生压力损失减少，并具有强度优异的结构的交叉管。解决方案：提供了一种配备有将从中压涡轮机5排出的蒸汽供给到低压涡轮机6a，6b的交叉管10的蒸汽轮机。在蒸汽涡轮机中，中压涡轮机具有排出废气的两个出口13a，13b，低压涡轮机6a，6b具有两个入口14a，14b。当从平面方向观察时，这些出口和入口布置在相同的直线上。彼此靠近并且彼此分开的出口和入口各自通过以双层方式一个位于另一个上的交叉管10a，10b连接。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2007092704A Axial-flow turbine exhaust chamber 审中-公开
标题翻译：轴流式涡轮排气室
公开(公告)号：JP2007092704A
公开(公告)日：2007-04-12
申请号：JP2005285838
申请日：2005-09-30
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： ISHIBASHI KOJI , TAKAHASHI FUMIO , RI HIROMOTO , SEGAWA KIYOSHI
IPC分类号： F01D25/30 , F01D11/02
摘要： PROBLEM TO BE SOLVED: To effectively lead a flow which has come out of a final-tier turbine blade to an exhaust outlet, reduce a pressure loss caused by interference by the flow toward the exhaust outlet, and improve the efficiency of a turbine.
SOLUTION: An extraction chamber used for extracting an exhaust flow is provided at the turbine rotor side of the outlet of the final-tier turbine blade, and constituted to perform extraction from the direction of the entire perimeter of the rotor. Then a flow guide which has a hole for extraction or a slit is provided between the turbine rotor side of the outlet of the final-tier turbine blade and the casing side forming the exhaust chamber. Furthermore, a sealing function is provided to the extraction chamber, and the flow guide is placed so that it becomes smaller than the outer diameter of a disk. Then the shape of the casing which is connected to the flow guide is formed in agreement with the flow guide.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了有效地将从最终级涡轮叶片出来的流量引导到排气口，减少由流向排气出口的干扰引起的压力损失，并且提高效率涡轮。解决方案：在最终级涡轮叶片的出口的涡轮机转子侧设置有用于抽取废气流的提取室，构成为从转子的整个周边的方向进行抽出。然后，在最终级涡轮叶片的出口的涡轮转子侧和形成排气室的壳体侧之间设置有具有用于抽出的孔或狭缝的流动引导件。此外，向抽取室提供密封功能，并且流动引导件被放置成使其小于盘的外径。然后，与流动引导件一致地形成与导流管连接的壳体的形状。版权所有（C）2007，JPO＆INPIT

8. 发明专利

JP2014163367A Rotor blade row of axial-flow turbine, and axial-flow turbine 有权
标题翻译：轴流涡轮转子叶片和轴流涡轮
公开(公告)号：JP2014163367A
公开(公告)日：2014-09-08
申请号：JP2013038123
申请日：2013-02-28
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： FUKUSHIMA HISATAKA , SHIBATA TAKANORI , SEGAWA KIYOSHI , KIMURA SEIICHI , RI HIROMOTO
IPC分类号： F01D5/14
摘要： PROBLEM TO BE SOLVED: To provide a rotor blade row of an axial-flow turbine capable of reducing blade profile loss by matching a geometric blade inlet angle and a working fluid inflow angle while taking change in a radial direction, of an inflow angle near an end wall portion, into consideration, and simultaneously reducing secondary flow loss by reducing interference of secondary flow and a blade negative pressure face generated between blades, in the axial-flow turbine.SOLUTION: A rotor blade row of an axial-flow turbine composed of a plurality of turbine rotor blades annularly arranged, has an auxiliary blade 3 disposed on at least one of an inner peripheral-side wall surface or an outer peripheral-side wall surface in a turbine radial direction of a flow channel formed between blades of the rotor blade row, having a blade inlet angle smaller than a blade inlet angle of the turbine rotor blade, having a blade outlet angle smaller than a blade outlet angle of the turbine rotor blade, and further having a blade front edge positioned at an upstream side in a working fluid flowing direction with respect to a blade front edge of the turbine rotor blade.
摘要翻译：要解决的问题：提供一种轴流涡轮机的转子叶片排，其能够通过使几何叶片入口角度和工作流体流入角度在径向方向上变化而减小叶片轮廓损失，考虑到端壁部分，同时通过减小在轴流涡轮机中产生的二次流和叶片之间产生的叶片负压面的干扰而同时减少二次流动损失。解决方案：轴流涡轮机的转子叶片排由环形排列的多个涡轮转子叶片具有辅助叶片3，其设置在形成于转子叶片之间的流路的涡轮径向的内周侧壁面或外周侧壁面中的至少一个上叶片排具有小于涡轮机转子叶片的叶片入口角的叶片入口角度，叶片出口角度小于涡轮转子叶片的叶片出口角度，并且还具有相对于所述涡轮机转子叶片的叶片前缘在工作流体流动方向上位于上游侧的叶片前缘。

9. 发明专利

JP2014084816A Axial flow turbine 有权
标题翻译：轴流涡轮
公开(公告)号：JP2014084816A
公开(公告)日：2014-05-12
申请号：JP2012235388
申请日：2012-10-25
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHIBATA TAKANORI , NISHIJIMA NORIYO , SEGAWA KIYOSHI , FUKUSHIMA HISATAKA , RI HIROMOTO
IPC分类号： F01D5/20 , F01D11/08 , F01D25/00 , F02C7/28 , F16J15/447
CPC分类号： F01D11/08 , F01D5/225 , F01D9/041 , F05D2220/31 , F05D2240/11 , F05D2240/12 , F05D2240/30
摘要： PROBLEM TO BE SOLVED: To provide an axial flow turbine capable of improving mixing loss reduction effect.SOLUTION: An axial flow turbine includes: a plurality of stationary vanes 2 disposed at an inner peripheral side of a diaphragm outer ring 1; a plurality of rotor vanes 5 disposed at an outer peripheral side of a rotor 4; a shroud 6 disposed at an outer peripheral side of the plurality of rotor vanes 5; an annular groove portion 12 formed on the diaphragm outer ring 1 and accommodating the shroud 6; a clearance flow path 13 formed between the groove portion 12 of the diaphragm outer ring 1 and the shroud 6 to allow a part of a working fluid to flow therein from a downstream side of the stationary vanes 2 of a main path 7, and flow out to a downstream side of the rotor vanes 5 of the main path 7; seal fins 14A-14D disposed in the clearance flow path 13; a circulation flow generation chamber 17 formed at a downstream side of the clearance flow path 13; and a plurality of shielding plates 18 fixed to the diaphragm outer ring 1 to be positioned in the circulation flow generation chamber 17, and extended in an axial direction and a radial direction of the rotor.
摘要翻译：要解决的问题：提供一种能够提高混合损失降低效果的轴流涡轮机。解决方案：轴流涡轮机包括：设置在隔膜外圈1的内周侧的多个静止叶片2; 设置在转子4的外周侧的多个转子叶片5; 设置在多个转子叶片5的外周侧的护罩6; 形成在隔膜外圈1上并容纳护罩6的环形槽部12; 形成在隔膜外圈1的槽部12和护罩6之间的间隙流路13，以使工作流体的一部分从主路径7的静止叶片2的下游侧流入，并流出到主路径7的转子叶片5的下游侧; 设置在间隙流路13中的密封翅片14A〜14D; 形成在间隙流路13的下游侧的循环流产生室17; 以及多个屏蔽板18，其固定在隔膜外圈1上，以定位在循环流产生室17中，并沿着转子的轴向和径向方向延伸。

10. 发明专利

JP2012172588A Turbine stationary blade and steam turbine equipment using the same 有权
标题翻译：涡轮机静叶片和蒸汽涡轮机设备使用相同
公开(公告)号：JP2012172588A
公开(公告)日：2012-09-10
申请号：JP2011035305
申请日：2011-02-22
申请人： Hitachi Ltd , 株式会社日立製作所
发明人： SHIBATA TAKANORI , SEGAWA KIYOSHI , KISHIBE TADAHARU , KIMURA SEIICHI , RI HIROMOTO
IPC分类号： F01D9/02
CPC分类号： F01D5/141 , F01D9/041 , F05D2220/31 , F05D2240/12 , F05D2240/122
摘要： PROBLEM TO BE SOLVED: To provide a highly efficient and inexpensive turbine stationary blade, that reduces the number of blades in an axial-flow turbine, while reducing secondary-flow loss.SOLUTION: In the turbine stationary blade, when a differential pressure between a face side and a back side of the blade at the same axial chord position is defined as a blade load and a ratio between the axial distance xp of a maximum load position 32, where the blade load becomes maximum, from a leading edge 8 of the blade and the axial chord length Cx is defined as a maximum load relative position, the axial chord lengths Cx of a blade root portion and a blade tip portion are longer than the axial chord length Cx of a blade intermediate height, and the maximum load relative positions of the blade root portion and the blade tip portion are set closer to the blade trailing edge side than the maximum load relative position of a blade intermediate portion.
摘要翻译：要解决的问题：为了提供高效且廉价的涡轮固定叶片，其减少了轴流涡轮机中的叶片数量，同时减少了二次流动损失。解决方案：在涡轮固定叶片中，当在相同的轴向弦位置处的叶片的面侧和后侧之间的压差被定义为叶片载荷和最大载荷的轴向距离xp之间的比率刀片负载变得最大的位置32，并且轴向弦长Cx被定义为最大负载相对位置，叶片根部和叶片尖端部分的轴向弦长Cx较长比叶片中间高度的轴向弦长Cx和叶片根部部分和叶片前端部分的最大负载相对位置设置为比叶片中间部分的最大载荷相对位置更靠近叶片后缘侧。版权所有（C）2012，JPO＆INPIT

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