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    • 1. 发明专利
    • Steam turbine and blade for steam turbine
    • 蒸汽涡轮蒸汽涡轮机和叶片
    • JP2013147999A
    • 2013-08-01
    • JP2012008849
    • 2012-01-19
    • Toshiba Corp株式会社東芝
    • TSUKUDA TOMOHIKOKAWAKAMI HIROSHIKAWASAKI SAKAESHIBUKAWA NAOKIOHASHI SHINICHIROIWASAKI YOSHIFUMI
    • F01D25/32F01D5/20F01D5/22F01D9/04F01D11/08F01D25/00
    • F01D5/147F01D5/14F01D5/225F01D11/08F01D25/32F05B2260/602
    • PROBLEM TO BE SOLVED: To provide a steam turbine and a blade of the steam turbine that can favorably collect water generated in the steam turbine, and prevent reduction in turbine efficiency.SOLUTION: A steam turbine includes: a turbine rotor shaft 3; a plurality of blades 2 provided on the turbine rotor shaft 3 and rotated by a steam flow; tip covers 20 attached to tip ends of the respective blades 2 and connected to and in contact with one another; at least one water drip fin 30 provided along a circumferential direction at the tip cover 20, and outwardly extending in a radial direction of each of the blades 2; and a diaphragm outer ring 40 disposed at an outer circumferential side from each of the blades 2, and having a drain catcher 43 opposed to a tip end part of the water drip fin 30. The tip cover 20 has a leading edge formed at a downstream side in an axial direction from a leading edge of the blade 2 or at a position in the axial direction corresponding to the leading edge of the blade 2 in the axial direction.
    • 要解决的问题:提供一种能够有利地收集在蒸汽轮机中产生的水的汽轮机的蒸汽轮机和叶片,并且防止涡轮机效率降低。蒸汽涡轮机包括:涡轮机转子轴3; 设置在涡轮转子轴3上并由蒸汽流旋转的多个叶片2; 末端盖20附接到各个叶片2的顶端并连接并相互接触; 至少一个沿着圆周方向设置在顶盖20处的水滴翅片30,并且沿着每个叶片2的径向方向向外延伸; 以及设置在每个叶片2的外周侧的隔膜外环40,并且具有与滴水翅片30的末端部分相对的排水捕集器43.顶盖20具有形成在下游的前缘 从叶片2的前缘沿轴向方向或轴向方向上与叶片2的前端沿轴向对应的位置。
    • 2. 发明专利
    • Turbine blade and steam turbine
    • 涡轮叶片和蒸汽涡轮机
    • JP2012137094A
    • 2012-07-19
    • JP2012059096
    • 2012-03-15
    • Toshiba Corp株式会社東芝
    • SUGAYA HARUNOBUKAWAKAMI HIROSHIUDAGAWA RYOZO
    • F01D5/14F01D25/00F01D25/32
    • PROBLEM TO BE SOLVED: To provide a turbine blade that reliably discharges droplets generated by the turbine blade passing through a leading edge region on a back side thereof to collide with the back side and flowing down along the back side, and adhering on a surface of the turbine blade while increasing as moving toward a blade root side outward the turbine blade.SOLUTION: The turbine blade 1 has the back side 31, the blade root 37, and a blade tip 36, and rotates around a rotary shaft (not shown) as a center. A separation groove 2 is provided of which the part or all extend and which leads the droplets 7 adhering on the surface outward on the back side 31 downstream the center line 10 between the axial center line 11 of the turbine blade 1 extending toward the rotary shaft and a leading edge 8 of the turbine blade 1.
    • 要解决的问题:提供一种涡轮叶片,其可靠地排出通过其后侧的前缘区域的涡轮机叶片产生的液滴与背面碰撞并沿着背面向下流动,并且粘附在 涡轮机叶片的表面,随着朝向叶片根侧向涡轮叶片向外移动而增加。 解决方案:涡轮叶片1具有后侧31,叶片根部37和叶片尖端36,并且以旋转轴(未示出)为中心旋转。 设置有分离槽2,其部分或全部延伸并且引导液滴7在涡轮叶片1的轴向中心线11之间的中心线10下游的背侧31上向外附着在表面上,朝向旋转轴 和涡轮叶片1的前缘8.版权所有(C)2012,JPO&INPIT
    • 3. 发明专利
    • Steam turbine
    • 汽轮机
    • JP2011226428A
    • 2011-11-10
    • JP2010098583
    • 2010-04-22
    • Toshiba Corp株式会社東芝
    • SAEKI YUSHIKAWAKAMI HIROSHINIIZEKI YOSHIKIIWAI YASUNORIOISHI TSUTOMUIMAI KENICHI
    • F01D25/30F01D25/24
    • PROBLEM TO BE SOLVED: To suppress an exhaust loss of a steam turbine including a steam guide or the like.SOLUTION: The steam guide of a steam turbine rotor includes an upper half steam guide and a lower half steam guide. The upper half steam guide 40 is in a semicircular-ring shape disposed outside an inner casing 21 and covering the steam turbine rotor from the outside in a radial direction, and forms a steam exhaust flow passage to exhaust working steam with an inner circumference face shaped in such a manner that a distance from the rotation center axis gradually increases toward the downstream side in the axial direction. The lower half steam guide 50 is in a semicircular-ring shape disposed to face the upper half steam guide 40 to form a circular ring together with the upper half steam guide 40 with an inner circumference face shaped in such a manner that the distance from the rotation center axis gradually increases toward the downstream side in the axial direction.
    • 要解决的问题:为了抑制包括蒸汽引导件等的蒸汽轮机的排气损失。 解决方案:蒸汽轮机转子的蒸汽导管包括上半部蒸汽引导件和下半部蒸汽引导件。 上半部蒸汽引导件40为半圆形环状,配置在内侧壳体21的外侧,从外侧沿径向覆盖蒸汽轮机转子,形成蒸汽排出流路,排出工作蒸汽,内周面成形 使得与旋转中心轴的距离朝向轴向的下游侧逐渐增大。 下半部蒸汽引导件50是半圆形环形的,设置成面对上半部蒸汽引导件40,以与上半部蒸汽引导件40一起形成圆形环,内圆周面的形状为: 旋转中心轴向轴向下游侧逐渐增大。 版权所有(C)2012,JPO&INPIT
    • 4. 发明专利
    • Steam turbine
    • 汽轮机
    • JP2009209697A
    • 2009-09-17
    • JP2008050931
    • 2008-02-29
    • Toshiba Corp株式会社東芝
    • KAWAKAMI HIROSHIIWAI YASUNORI
    • F01D25/24
    • F01D25/26F01D25/28F05D2220/31
    • PROBLEM TO BE SOLVED: To sufficiently secure the rigidity of a low-pressure casing while the size of the casing is increased, and increase the exhaust performance of the low-pressure casing by reducing the amount of the internal structure of the casing.
      SOLUTION: A steam turbine comprises a casing structure in which the low-pressure casing 31 is divided into an upper half section 37 and a lower half section 38 through a horizontal plane passing through a rotor shaft O, and the upper half section 37 and the lower half section 38 are joined with their respectively upper half flange 39 and a lower half flange 40. The upper half section 37 of the steam turbine comprises a semi-cylindrical wrapper plate 42 extending in the axial direction of the rotor shaft O, end plates 43 disposed on both ends of the wrapper plate 42, and a wrapper plate projecting part 46 installed at the position where the wrapper plate 42 axially projects from the end plates 43. A first end plate reinforcing rib 47 is circumferentially formed further on the inner peripheral side than the wrapper plate 42 on the outer surface of the end plates 43. The wrapper plate projecting part 46 and the first end plate reinforcing rib 43 are joined to each other through a plurality of second end plate reinforcing ribs 48 radially formed on the outer surfaces of the end plates 43.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:为了充分确保壳体的尺寸增加时的低压壳体的刚性,并且通过减小壳体的内部结构的量来增加低压壳体的排气性能 。 解决方案:蒸汽轮机包括壳体结构,其中低压壳体31通过穿过转子轴O的水平面分成上半部分37和下半部分38,上半部分 37和下半部38与它们分别的上半凸缘39和下半凸缘40连接。蒸汽涡轮机的上半部分37包括在转子轴O的轴向方向上延伸的半圆柱形包装板42 设置在包装板42的两端的端板43和安装在包装板42从端板43轴向突出的位置的包装板突出部46.第一端板加强肋47进一步周向地形成在 在端板43的外表面上的包装板42的内周侧。包装板突出部46和第一端板加强肋43通过plura相互连接 径向形成在端板43的外表面上的第二端板加强肋48的尺寸。(C)2009年,JPO和INPIT
    • 5. 发明专利
    • Thermal power plant
    • 热电厂
    • JP2008248822A
    • 2008-10-16
    • JP2007092286
    • 2007-03-30
    • Toshiba Corp株式会社東芝
    • KAWAKAMI HIROSHIHATTORI NOBUHIKO
    • F01D15/10F01D17/00F01K7/38F01K23/10
    • F01K7/22F01K7/38F01K7/40F01K23/10Y02E20/16
    • PROBLEM TO BE SOLVED: To easily improve power generation efficiency by improving turbine efficiency.
      SOLUTION: This thermal power plant is provided with a boiler 1 forming main steam A by heating supplied water by using heat accompanying combustion of fossil fuel, reheat combustors 41, 42 installed in the boiler 1, a turbine 2, and a generator 13 connected to the turbine 2. The turbine 2 is provided with a high pressure turbine 8 to which the main steam A is introduced from the boiler 1, a middle pressure turbine 9 which is coaxially connected to the high pressure turbine 8 and to which reheated steam E, F formed in the reheat combustors 41, 42 is introduced, and a low pressure turbine 11 which is coaxially connected to the high pressure turbine 8 and the middle pressure turbine 9 and to which the reheated steam E, F discharged from the middle pressure turbine 9 is introduced. The generator 7 is coaxially connected to the high pressure turbine 8, the middle pressure turbine 9 and the low pressure turbine 11 and has poles more than two.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:通过提高涡轮机效率来容易地提高发电效率。 解决方案:该火力发电厂设有锅炉1,其通过使用伴随化石燃料燃烧的热量加热供水,形成主蒸汽A,再次安装在锅炉1中的燃烧器41,42,涡轮机2和发电机 涡轮机2设置有从蒸发器1引入主蒸汽A的高压涡轮机8,与高压涡轮机8同轴连接的再循环的中压涡轮机9 引入在再热燃烧器41,42中形成的蒸汽E,F以及与高压汽轮机8和中压汽轮机9同轴连接的低压汽轮机11,从中间排出的再加热蒸汽E,F 引入压力涡轮9。 发电机7与高压汽轮机8,中压汽轮机9和低压汽轮机11同轴连接,并具有两个以上的极点。 版权所有(C)2009,JPO&INPIT
    • 6. 发明专利
    • Turbine bucket and steam turbine
    • 涡轮机和蒸汽涡轮机
    • JP2008138585A
    • 2008-06-19
    • JP2006325464
    • 2006-12-01
    • Toshiba Corp株式会社東芝
    • SUGAYA HARUNOBUKAWAKAMI HIROSHIUDAGAWA RYOZO
    • F01D25/32
    • PROBLEM TO BE SOLVED: To provide a turbine bucket capable of surely discharging, to the outside of the turbine bucket, water droplets generated by passing a front edge region on the back surface side of the turbine bucket, and colliding with the back surface, and flowing down along the back surface, and water droplets increasing as approaching a bucket root part side and adhering to the front surface of the turbine bucket.
      SOLUTION: This turbine bucket 1 includes the back surface 31, a bucket root part 37, and a bucket tip part 36, and rotates around a rotary shaft (not shown in fig.). The turbine bucket is provided with separation grooves 2 each having a part or the whole part extending on the back surface 31 side, and on the downstream side relative to a center line 10 between an axial center line 11 of the turbine bucket 1 extending toward the rotary shaft, and the front edge 8 of the turbine bucket 1, and guiding the water droplets 7 adhering to the front surface to the outside.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了提供能够可靠地排放到涡轮机桶外部的涡轮机桶,通过使涡轮机桶的背面侧的前缘区域通过并与后方碰撞而产生的水滴 表面,并且沿背面向下流动,水滴随着接近铲斗根部一侧而增加,并附着在涡轮叶片的前表面。 解决方案:该涡轮机桶1包括后表面31,铲斗根部37和铲斗前端部分36,并围绕旋转轴(图中未示出)旋转。 涡轮机叶片设置有分离槽2,分离槽2具有在后表面31侧延伸的部分或全部部分,并且在涡轮机斗1的轴向中心线11之间延伸的中心线10的下游侧 旋转轴和涡轮叶片1的前边缘8,并且将附着在前表面上的水滴7引导到外部。 版权所有(C)2008,JPO&INPIT
    • 8. 发明专利
    • Axial turbine
    • 轴流式涡轮
    • JP2006307846A
    • 2006-11-09
    • JP2006093858
    • 2006-03-30
    • Toshiba Corp株式会社東芝
    • NOMURA DAISUKEKAWASAKI SAKAEONODA AKIHIROTANI KENTAROKAWAKAMI HIROSHI
    • F01D9/04
    • PROBLEM TO BE SOLVED: To provide an axial turbine suppressing secondary flow loss accompanying secondary flow swirl created at both ends of a nozzle blade and provided with a turbine nozzle making more fluid flow in a center of blade height of the nozzle blade.
      SOLUTION: This axial turbine is provided with a stage composed of a turbine nozzle and a turbine rotor blade arranged in an axial flow direction. Both end portions of a nozzle blade 1 of the turbine nozzle are supported by a diaphragm inner ring 2 and a diaphragm outer ring 3, and a flow passage 4 is formed to have its diameter expanded from an upstream stage to a downstream stage. In the axial turbine, trailing edges 1a at ends of the nozzle blade 1 supported by the diaphragm inner ring 2 and the diaphragm outer ring 3 are curved as a curvature to an outlet side, and an intermediate portion between the trailing edges 1a is formed to be straight.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种轴流式涡轮机,其抑制二次流动涡流伴随着在喷嘴叶片的两端处产生的二次流动涡流并且设置有在喷嘴叶片的叶片高度的中心处形成更多流体流动的涡轮喷嘴。 解决方案:该轴向涡轮机设置有由涡轮喷嘴和沿轴向流动方向布置的涡轮机转子叶片构成的台。 涡轮喷嘴的喷嘴叶片1的两端部由隔膜内圈2和隔膜外圈3支撑,流路4形成为从上游侧到下游侧的直径。 在轴向涡轮机中,由隔膜内圈2和隔膜外圈3支撑的喷嘴叶片1的端部处的后缘1a作为曲率弯曲到出口侧,并且后缘1a之间的中间部分形成为 要直 版权所有(C)2007,JPO&INPIT
    • 9. 发明专利
    • Steam turbine
    • 汽轮机
    • JP2006307738A
    • 2006-11-09
    • JP2005131051
    • 2005-04-28
    • Toshiba Corp株式会社東芝
    • SAEKI YUSHIIWAI YASUNORIKAWAKAMI HIROSHINIIZEKI YOSHIKI
    • F01D25/30F01D25/26
    • PROBLEM TO BE SOLVED: To provide a steam turbine in which the pressure (static pressure) of a turbine exhaust is more highly recovered and the turbine exhaust performance is improved when the turbine exhaust in which the expansion work is ended is exhausted from a turbine exhaust chamber into a condenser.
      SOLUTION: The steam turbine is divided into an upper half steam guide 27a and a lower half steam guide 27b at the cross center of a steam guide 27. The divided upper half steam guide 27a is expanded from an upper half steam guide inlet edge line 40a toward an upper half steam guide outlet edge line 41a, while the divided lower steam guide 27b is expanded from a lower half steam guide inlet edge line 40b toward a lower half steam guide outlet edge line 41b. The lower half steam guide edge line 41b is shaped to connect an inclined outlet edge line 42 expanded from the cross center toward the bottom side, and a bottom outlet edge line 43 with a curved outlet edge line 44.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种蒸汽涡轮机,其中当膨胀工作结束的涡轮机排气被排出时,其中涡轮排气的压力(静压)被更高回收并且涡轮排气性能得到改善 涡轮排气室进入冷凝器。 解决方案:蒸汽轮机在蒸汽导管27的交叉中心处分为上半部分蒸汽引导件27a和下半部分蒸汽引导件27b。分离的上部半部蒸汽引导件27a从上部半部蒸汽引导入口 边缘线40a朝向上半部蒸汽导出口边缘线41a,而分隔的下部蒸汽引导件27b从下半部蒸汽引导入口边缘线40b向下半部蒸汽引导出口边缘线41b扩展。 下半部蒸汽引导边缘线41b成形为连接从交叉中心朝向底侧膨胀的倾斜出口边缘线42和具有弯曲出口边缘线44的底部出口边缘线43.成对:(C )2007,JPO&INPIT
    • 10. 发明专利
    • Method and device for measuring surface roughness, and method of diagnosing degradation of turbine
    • 用于测量表面粗糙度的方法和装置,以及诊断涡轮机降解的方法
    • JP2006162558A
    • 2006-06-22
    • JP2004358510
    • 2004-12-10
    • Toshiba Corp株式会社東芝
    • MATSUDA HISASHIKAWAKAMI HIROSHIINOMATA ASAKOOTOMO FUMIOKAWAGISHI HIROYUKI
    • G01B11/30F01D25/00F02C7/00G01N21/27
    • G01B11/303
    • PROBLEM TO BE SOLVED: To provide a method and device for efficiently and accurately measuring the surface roughness of a wide area of the surface of an object to be measured, and to provide a method for diagnosing the degradation of a turbine.
      SOLUTION: The method and device for efficiently and accurately measuring the surface roughness of a wide area of the surface of the object to be measured comprises a color imaging means 2 for sampling the color image of the surface of the object to be measured 1; a color stimulus value calculating means 3 for calculating the color stimulus value of each point of the color images, a database part 4 for holding calibration information, expressing the relation of the color stimulus value of display color and the surface roughness of the representative points on the surface of the object to be measured 1; and an image processing display means 5 for displaying the images, by converting the color stimulus value of each point of the color image into surface roughness by the calibration information.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种用于有效且准确地测量被测量物体的表面的广泛区域的表面粗糙度的方法和装置,并且提供用于诊断涡轮机劣化的方法。 解决方案:用于有效且精确地测量被测量物体的表面的广泛区域的表面粗糙度的方法和装置包括:彩色成像装置2,用于对被测量物体的表面的彩色图像进行采样; 1; 用于计算彩色图像的每个点的颜色刺激值的颜色刺激值计算装置3,用于保持校准信息的数据库部分4,表示显示颜色的颜色刺激值与代表点的表面粗糙度之间的关系 被测物1的表面; 以及图像处理显示装置5,用于通过校准信息将彩色图像的每个点的颜色刺激值转换成表面粗糙度来显示图像。 版权所有(C)2006,JPO&NCIPI