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公开(公告)号：US20100278645A1
公开(公告)日：2010-11-04
申请号：US12769249
申请日：2010-04-28
申请人： Kenjiro NARITA , Haruyuki Yamazaki , Hiroyuki Doi , Kei Kobayashi , Hajime Toriya , Takeshi Kudo , Yoshitaka Kojima
发明人： Kenjiro NARITA , Haruyuki Yamazaki , Hiroyuki Doi , Kei Kobayashi , Hajime Toriya , Takeshi Kudo , Yoshitaka Kojima
IPC分类号： F04D29/10
CPC分类号： F01D1/02 , F01D11/08 , F01D11/14 , F05D2240/55
摘要： Provided are a seal structure and a control method therefor that can improve sealing performance between a rotating portion and a fixed portion, smoothly start up a steam turbine, and suppress the temperature rise of the rotating portion even if the rotating portion is continuously rotated for a long period of time.A seal structure is configured such that seal fins 62 on a seal base-plate 61 side and corresponding breathable spacers 4b on a rotor 2a side are opposed to each other and breathable spacers 4a on the seal base-plate 61 side and corresponding seal fins 2a1 on the rotor 2a side are opposed to each other. The seal base-plate 61 is installed shiftably in a direction coming close to or moving away from the rotor 2a. If steam St has low pressure, the seal fins 62 and the corresponding breathable spacers 4b are not in contact with each other and the seal fins 2a1 and the corresponding breathable spacers 4a are not in contact with each other. If the steam St has high pressure, the seal fins 62 and the corresponding breathable spacers 4b are in contact with each other and the seal fins 2a1 and the corresponding breathable spacers 4a are in contact with each other.
摘要翻译： 提供一种密封结构及其控制方法，其可以改善旋转部分和固定部分之间的密封性能，平滑地启动蒸汽轮机，并且即使旋转部分连续旋转，也可以抑制旋转部分的温度升高 很长一段时间 密封结构被构造成使得密封基板61侧的密封翅片62和转子2a侧上的相应的透气间隔件4b彼此相对，并且密封基板61侧上的透气间隔件4a和相应的密封翅片2a1 转子2a侧彼此相对。 密封基板61沿与转子2a接近或离开的方向可移动地安装。 如果蒸汽St具有低压力，密封翅片62和相应的透气间隔物4b彼此不接触，并且密封翅片2a1和相应的透气间隔件4a彼此不接触。 如果蒸汽St具有高压，则密封翅片62和相应的透气间隔件4b彼此接触，并且密封翅片2a1和相应的透气间隔件4a彼此接触。
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公开(公告)号：US08500397B2
公开(公告)日：2013-08-06
申请号：US13396033
申请日：2012-02-14
CPC分类号： F01D11/02 , F01D11/001 , F01D11/08 , F05D2220/31 , F05D2250/182 , F05D2300/5024 , F16J15/162 , F16J15/445 , F16J15/4472
摘要： A seal structure for a steam turbine is provided, which is capable of suppressing transfer of heat generated by a friction between a rotating portion and a fixed portion to the rotating portion and of suppressing an increase in the temperature of the rotating portion. A labyrinth seal device serves to suppress the amount of steam leaking from a clearance present between each stator blade (fixed portion) of the steam turbine and a rotor (rotating portion). The seal structure for the steam turbine is formed to ensure that permeable spacers made of a permeable metal are provided on the rotor and a seal stationary body and face respective seal fins provided in the labyrinth seal device.
摘要翻译： 提供了一种用于蒸汽涡轮机的密封结构，其能够抑制由旋转部分和固定部分之间的摩擦产生的热量转移到旋转部分并抑制旋转部分的温度升高。 迷宫式密封装置用于抑制从蒸汽涡轮机的每个定子叶片（固定部分）和转子（旋转部分）之间存在的间隙泄漏的蒸汽量。 形成蒸汽轮机的密封结构，以确保在转子和密封件固定体上设置由可渗透金属构成的可渗透间隔件，并面对设置在迷宫式密封装置中的相应密封翅片。
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公开(公告)号：US08128351B2
公开(公告)日：2012-03-06
申请号：US12326216
申请日：2008-12-02
CPC分类号： F01D11/02 , F01D11/001 , F01D11/08 , F05D2220/31 , F05D2250/182 , F05D2300/5024 , F16J15/162 , F16J15/445 , F16J15/4472
摘要： A seal structure for a steam turbine is provided, which is capable of suppressing transfer of heat generated by a friction between a rotating portion and a fixed portion to the rotating portion and of suppressing an increase in the temperature of the rotating portion. A labyrinth seal device serves to suppress the amount of steam leaking from a clearance present between each stator blade (fixed portion) of the steam turbine and a rotor (rotating portion). The seal structure for the steam turbine is formed to ensure that permeable spacers made of a permeable metal are provided on the rotor and a seal stationary body and face respective seal fins provided in the labyrinth seal device.
摘要翻译： 提供了一种用于蒸汽涡轮机的密封结构，其能够抑制由旋转部分和固定部分之间的摩擦产生的热量转移到旋转部分并抑制旋转部分的温度升高。 迷宫式密封装置用于抑制从蒸汽涡轮机的每个定子叶片（固定部分）和转子（旋转部分）之间存在的间隙泄漏的蒸汽量。 形成蒸汽轮机的密封结构，以确保在转子和密封件固定体上设置由可渗透金属构成的可渗透间隔件，并面对设置在迷宫式密封装置中的相应密封翅片。
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公开(公告)号：US20090142187A1
公开(公告)日：2009-06-04
申请号：US12326216
申请日：2008-12-02
IPC分类号： F01D11/08
CPC分类号： F01D11/02 , F01D11/001 , F01D11/08 , F05D2220/31 , F05D2250/182 , F05D2300/5024 , F16J15/162 , F16J15/445 , F16J15/4472
摘要： A seal structure for a steam turbine is provided, which is capable of suppressing transfer of heat generated by a friction between a rotating portion and a fixed portion to the rotating portion and of suppressing an increase in the temperature of the rotating portion. A labyrinth seal device serves to suppress the amount of steam leaking from a clearance present between each stator blade (fixed portion) of the steam turbine and a rotor (rotating portion). The seal structure for the steam turbine is formed to ensure that permeable spacers made of a permeable metal are provided on the rotor and a seal stationary body and face respective seal fins provided in the labyrinth seal device.
摘要翻译： 提供了一种用于蒸汽涡轮机的密封结构，其能够抑制由旋转部分和固定部分之间的摩擦产生的热量转移到旋转部分并抑制旋转部分的温度升高。 迷宫式密封装置用于抑制从蒸汽涡轮机的每个定子叶片（固定部分）和转子（旋转部分）之间存在的间隙泄漏的蒸汽量。 形成蒸汽轮机的密封结构，以确保在转子和密封件固定体上设置由可渗透金属构成的可渗透间隔件，并面对设置在迷宫式密封装置中的相应密封翅片。
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公开(公告)号：US08801373B2
公开(公告)日：2014-08-12
申请号：US12825525
申请日：2010-06-29
申请人： Yoshitaka Kojima , Hideyuki Arikawa , Akira Mebata , Hiroyuki Doi , Hajime Toriya , Kenjiro Narita
发明人： Yoshitaka Kojima , Hideyuki Arikawa , Akira Mebata , Hiroyuki Doi , Hajime Toriya , Kenjiro Narita
CPC分类号： F01D11/02 , C22C19/00 , C22C19/058 , C22C19/07 , C23C4/073 , C23C28/02 , C23C30/00 , F01D11/001 , F01D11/122 , F05D2220/31 , F05D2300/509 , Y10T428/249961 , Y10T428/249974 , Y10T428/249981 , Y10T428/249989
摘要： A metal sealing material used in a sealing device which can reduce a gap between a stator and a rotor of a turbine. The metal sealing material used in a sealing device for a stator and a rotor of a turbine includes a surface layer and a lower layer composed of a porous metal layer, wherein the porosity of the surface layer is smaller than the porosity of the lower layer; the porosity of the surface layer is 60 to 65% and the porosity of the lower layer is 67 to 75% or less; and the porous metal layer has a thickness of 0.3 to 3.0 mm and may include, as a main component, an MCrAlY alloy where M is either one of Ni and Co or both thereof, and h-BN as a solid lubricant.
摘要翻译： 用于密封装置中的金属密封材料，其可以减小定子和涡轮机的转子之间的间隙。 用于定子的密封装置和涡轮机的转子的金属密封材料包括表面层和由多孔金属层构成的下层，其中表面层的孔隙率小于下层的孔隙率; 表面层的孔隙率为60〜65％，下层的孔隙率为67〜75％以下。 多孔金属层的厚度为0.3〜3.0mm，作为主要成分，可以举出M是Ni和Co中的任一种或两者的MCrAlY合金以及作为固体润滑剂的h-BN。
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公开(公告)号：US20110014035A1
公开(公告)日：2011-01-20
申请号：US12825525
申请日：2010-06-29
申请人： Yoshitaka KOJIMA , Hideyuki Arikawa , Akira Mebata , Hiroyuki Doi , Hajime Toriya , Kenjiro Narita
发明人： Yoshitaka KOJIMA , Hideyuki Arikawa , Akira Mebata , Hiroyuki Doi , Hajime Toriya , Kenjiro Narita
IPC分类号： F01D11/00
CPC分类号： F01D11/02 , C22C19/00 , C22C19/058 , C22C19/07 , C23C4/073 , C23C28/02 , C23C30/00 , F01D11/001 , F01D11/122 , F05D2220/31 , F05D2300/509 , Y10T428/249961 , Y10T428/249974 , Y10T428/249981 , Y10T428/249989
摘要： A metal sealing material used in a sealing device which can reduce a gap between a stator and a rotor of a turbine. The metal sealing material used in a sealing device for a stator and a rotor of a turbine includes a surface layer and a lower layer composed of a porous metal layer, wherein the porosity of the surface layer is smaller than the porosity of the lower layer; the porosity of the surface layer is 60 to 65% and the porosity of the lower layer is 67 to 75% or less; and the porous metal layer has a thickness of 0.3 to 3.0 mm and may include, as a main component, an MCrAlY alloy where M is either one of Ni and Co or both thereof, and h-BN as a solid lubricant.
摘要翻译： 用于密封装置中的金属密封材料，其可以减小定子和涡轮机的转子之间的间隙。 用于定子的密封装置和涡轮机的转子的金属密封材料包括表面层和由多孔金属层构成的下层，其中表面层的孔隙率小于下层的孔隙率; 表面层的孔隙率为60〜65％，下层的孔隙率为67〜75％以下。 多孔金属层的厚度为0.3〜3.0mm，作为主要成分，可以举出M是Ni和Co中的任一种或两者的MCrAlY合金以及作为固体润滑剂的h-BN。
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7.发明授权Pipe for steam turbine, manufacturing process of same, main stream pipe and reheat pipe for steam turbine, and steam turbine power plant using those pipes 有权蒸汽轮机管道，制造工艺相同，蒸汽轮机主流管道和再热管，以及使用这些管道的蒸汽轮机发电厂公开(公告)号：US07632066B2
公开(公告)日：2009-12-15
申请号：US11480978
申请日：2006-07-06
IPC分类号： F01D25/00
CPC分类号： B22D13/02 , C22C38/001 , C22C38/04 , C22C38/44 , C22C38/46 , C22C38/48 , F05B2260/60
摘要： A pipe for a steam turbine is formed of a centrifugal casting material to achieve resistance against higher temperatures and improve reliability of the pipe by employing, as a pipe material, a centrifugal casting material normalized to contain uniform and finer crystal grains. The centrifugal casting material is made of steel having a columnar structure in the radial direction with the crystal grain size number of 5 or more in a plane perpendicular to the radial direction. The steel includes 0.05-0.5% by mass C, not more than 1.0% Si, 0.05-1.5% Mn, 0.01-2.5% Ni, 8.0-13.0% Cr, 0.05-2.5% Mo, not more than 3.0% W, 0.05-0.35% V, 0.01-0.5% Nb, not more than 5% Co, 0.01-0.1% N, not more than 0.03% B, and not more than 0.05% Al.
摘要翻译： 用于汽轮机的管由离心铸造材料形成，以通过采用归一化为含有均匀和更细晶粒的离心铸造材料作为管材料来实现耐高温性和提高管的可靠性。 离心铸造材料由垂直于径向方向的平面中的晶粒尺寸数为5以上的在径向具有柱状结构的钢制成。 该钢含有0.05〜0.5质量％的C，不大于1.0％的Si，0.05-1.5％的Mn，0.01-2.5％的Ni，8.0-13.0％的Cr，0.05-2.5％的Mo，不大于3.0％的W，0.05 -0.35％V，0.01-0.5％Nb，不大于5％Co，0.01-0.1％N，不大于0.03％B和不大于0.05％Al。
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8.发明申请Pipe for steam turbine, manufacturing process of same, main steam pipe and reheat pipe for steam turbine, and steam turbine power plant using those pipes 有权蒸汽轮机管道，制造工艺相同，蒸汽轮机主蒸汽管道和再热管道，以及使用这些管道的蒸汽轮机发电厂公开(公告)号：US20070014671A1
公开(公告)日：2007-01-18
申请号：US11480978
申请日：2006-07-06
IPC分类号： F03B3/12
CPC分类号： B22D13/02 , C22C38/001 , C22C38/04 , C22C38/44 , C22C38/46 , C22C38/48 , F05B2260/60
摘要： A pipe for a steam turbine is formed of a centrifugal casting material to achieve resistance against higher temperatures and improve reliability of the pipe by employing, as a pipe material, a centrifugal casting material normalized to contain uniform and finer crystal grains. The centrifugal casting material is made of steel having a columnar structure in the radial direction with the crystal grain size number of 5 or more in a plane perpendicular to the radial direction. The steel includes 0.05-0.5% by mass C, not more than 1.0% Si, 0.05-1.5% Mn, 0.01-2.5% Ni, 8.0-13.0% Cr, 0.05-2.5% Mo, not more than 3.0% W, 0.05-0.35% V, 0.01-0.5% Nb, not more than 5% Co, 0.01-0.1% N, not more than 0.03% B, and not more than 0.05% Al.
摘要翻译： 用于汽轮机的管由离心铸造材料形成，以通过采用归一化为含有均匀和更细晶粒的离心铸造材料作为管材料来实现耐高温性和提高管的可靠性。 离心铸造材料由垂直于径向方向的平面中的晶粒尺寸数为5以上的在径向具有柱状结构的钢制成。 该钢含有0.05〜0.5质量％的C，不大于1.0％的Si，0.05-1.5％的Mn，0.01-2.5％的Ni，8.0-13.0％的Cr，0.05-2.5％的Mo，不大于3.0％的W，0.05 -0.35％V，0.01-0.5％Nb，不大于5％Co，0.01-0.1％N，不大于0.03％B和不大于0.05％Al。
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公开(公告)号：US20120107103A1
公开(公告)日：2012-05-03
申请号：US13242951
申请日：2011-09-23
申请人： Yoshitaka Kojima , Hideyuki Arikawa , Akira Mebata , Tadashi Kasuya , Hiroyuki Doi , Kunihiro Ichikawa , Takao Endo , Kazuto Mikazuki , Hidetoshi Kuroki
发明人： Yoshitaka Kojima , Hideyuki Arikawa , Akira Mebata , Tadashi Kasuya , Hiroyuki Doi , Kunihiro Ichikawa , Takao Endo , Kazuto Mikazuki , Hidetoshi Kuroki
CPC分类号： F01D11/122 , F05D2230/311 , F05D2240/11 , F05D2300/514 , F05D2300/522 , Y10T29/49323
摘要： A gas turbine shroud includes a ceramic abradable coating superior in abradable property and durability. The gas turbine ceramic abradable coating of the present invention is configured by an abradable metal layer and a porous ceramic abradable layer (hardness RC15Y: 80±3), the porous ceramic abradable layer is provided with slit grooves by machining work, and a slit groove width is 0.5 to 5 mm. Thereby, the abradable property, and durability against a thermal cycle and high-temperature oxidation are improved.
摘要翻译： 燃气轮机罩包括耐磨性和耐久性优异的陶瓷耐磨涂层。 本发明的燃气轮机陶瓷耐磨涂层由耐磨金属层和多孔陶瓷耐磨层（硬度RC15Y：80±3）构成，多孔陶瓷耐磨层通过加工加工而形成狭缝槽，狭缝槽 宽度为0.5〜5mm。 由此，能够提高耐磨损性，耐热循环性和耐高温氧化性。
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公开(公告)号：US20110182720A1
公开(公告)日：2011-07-28
申请号：US13012017
申请日：2011-01-24
申请人： Yoshitaka KOJIMA , Hideyuki Arikawa , Akira Mebata , Tadashi Kasuya , Hiroyuki Doi , Kunihiro Ichikawa
发明人： Yoshitaka KOJIMA , Hideyuki Arikawa , Akira Mebata , Tadashi Kasuya , Hiroyuki Doi , Kunihiro Ichikawa
CPC分类号： C23C28/00 , F01D11/122 , F05D2230/90 , F05D2240/11 , F05D2250/181 , F05D2300/21
摘要： There is provided a gas turbine shroud including a ceramic abradable coating used as a gap adjusting component that can reduce a fluid leakage from a gap and increase turbine efficiency. A gas turbine ceramic abradable coating includes a bond layer, a thermal barrier ceramic layer, and a porous ceramic abradable layer (hardness may be RC15Y: 80±3). A slit groove is provided in the porous ceramic abradable layer by machining. A width of a rectangular section of the ceramic abradable layer divided by the slit groove may be set to a range of 2 to 7 mm.
摘要翻译： 提供了一种燃气轮机罩，其包括用作间隙调节部件的陶瓷耐磨涂层，其可以减少从间隙泄漏的液体并提高涡轮机效率。 燃气轮机陶瓷耐磨涂层包括粘合层，热障陶瓷层和多孔陶瓷耐磨层（硬度可以是RC15Y：80±3）。 通过机械加工在多孔陶瓷耐磨层中设置狭缝槽。 由狭缝槽划分的陶瓷耐磨层的矩形截面的宽度可以设定在2〜7mm的范围内。
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