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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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5.发明授权公开(公告)号：US08864443B2
公开(公告)日：2014-10-21
申请号：US13181970
申请日：2011-07-13
CPC分类号： F01D11/22 , F01D11/06 , F05D2220/31 , F16J15/442 , F16J15/445
摘要： A sealing structure in which free-cutting spacers on a sealing base plate and sealing fins on a rotor are opposed to each other is provided. The sealing base plate is disposed so as to be movable in an axial direction of the rotor. When a steam turbine increases in load, a pressure head moves in an axial steam-pressure loading direction of the rotor and the sealing base plate connected to the pressure head moves in the axial steam-pressure loading direction. Since the free-cutting spacers at positions opposed to those of the sealing fins existing after the movement of the sealing base plate are maintained in a non-contact state, clearances between the sealing fins and the free-cutting spacers are dimensionally minimized.
摘要翻译： 提供密封基板上的自由切割间隔件和转子上的密封翅片彼此相对的密封结构。 密封基板被设置成能够沿着转子的轴向移动。 当蒸汽轮机的负载增加时，压头在转子的轴向蒸汽加压方向移动，与压头连接的密封基板在轴向蒸汽加压方向移动。 由于在与密封基板移动之后存在的密封翅片的位置相对的位置处的自由切割间隔件保持非接触状态，所以密封翅片和自由切割间隔件之间的间隙在尺寸上最小化。
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公开(公告)号：US6053998A
公开(公告)日：2000-04-25
申请号：US788880
申请日：1997-01-22
申请人： Makoto Nitta , Haruyuki Yamazaki
发明人： Makoto Nitta , Haruyuki Yamazaki
CPC分类号： C23F15/00 , D21J7/00 , Y10S264/914 , Y10T156/1093
摘要： A method of manufacturing a rust-preventing cover in which sufficient strength during mounting is ensured and which can be easily removed when not needed. The method of manufacturing a rust-preventing cover is carried out by a WFM manufacturing method rather than a conventional DFM manufacturing method. A mixed aqueous solution having paper fibers as a main material thereof is stored in a water tank. A porous rust-preventing cover mold is immersed therein. Then, the mixed aqueous solution is sucked by a vacuum pump. In this way, a paper fiber surface layer, which later becomes a rust-preventing cover, is formed on a surface of a mold main body of the rust-preventing cover mold at portions to which masking has not been applied. By adjusting a suction time of the vacuum pump, a rust-preventing cover of an arbitrary thickness which corresponds to a thickness required during mounting can be obtained. Further, because breakage strength of the rust-preventing cover is based on bonding of paper fibers, the rust-preventing cover can be broken and removed easily.
摘要翻译： 一种制造防锈罩的方法，其中确保了在安装期间具有足够的强度并且在不需要时可以容易地去除。 通过WFM制造方法而不是传统的DFM制造方法进行防锈罩的制造方法。 将以纸纤维为主要原料的混合水溶液储存在水箱中。 多孔防锈罩模具浸入其中。 然后，通过真空泵吸入混合水溶液。 以这种方式，在未被施加掩蔽的部分的防锈罩模具的模具主体的表面上形成稍后成为防锈盖的纸纤维表面层。 通过调整真空泵的抽吸时间，可以获得与安装时所需的厚度相对应的任意厚度的防锈罩。 此外，由于防锈层的断裂强度是基于纸纤维的结合，所以可以容易地破坏和去除防锈盖。
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公开(公告)号：US4245998A
公开(公告)日：1981-01-20
申请号：US891284
申请日：1978-03-29
CPC分类号： B01D1/14 , B01D9/0009
摘要： To remove salts from a solution containing the salts, hot air is injected downwards into the solution in a concentrator, and the solution is concentrated by direct contact with the hot air, thereby enhancing an evaporation efficiency in the concentrator and preventing scale deposition in the concentrator and piping system. The solution is forcedly cooled in a crystallizer by direct contact with cool air, thereby making crystals grow in the solution within a short time. The solution and air are circulated in a closed cycle, thereby preventing a secondary environmental pollution.
摘要翻译： 为了从含有盐的溶液中除去盐，将热空气向下注入浓缩器中的溶液中，并通过与热空气直接接触来浓缩溶液，从而提高浓缩器中的蒸发效率并防止浓缩器中的结垢沉积 和管道系统。 该溶液通过与冷空气直接接触在结晶器中被强制冷却，从而使晶体在短时间内在溶液中生长。 溶液和空气在封闭循环中循环，从而防止二次环境污染。
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公开(公告)号：US4424770A
公开(公告)日：1984-01-10
申请号：US308163
申请日：1981-10-02
CPC分类号： F22B3/02 , B01D1/12 , B04C7/00 , B04C9/00 , F22B37/322
摘要： The present invention provides a low boiling point medium evaporator which generates low boiling point medium vapor in the mixture of two components with different boiling points by heating at the risers and mixes said heated two component mixture and said low boiling point medium liquid supplied from the outside of the system and has at least one device provided at the outlet portion of said risers and used both as a heat exchanger to generate saturated vapor of said low boiling point medium vapor by mixing said low boiling point medium liquid and the two phase flow comprised said low boiling point medium vapor and said mixture and passing said two phase flow through said low boiling point medium vapor and as a cyclone to separate said saturated vapor and said mixture.
摘要翻译： 本发明提供了一种低沸点介质蒸发器，其通过在立管处加热而在具有不同沸点的两种组分的混合物中产生低沸点介质蒸气，并将所述加热的二组分混合物和从外部供应的所述低沸点介质液体混合 并且具有设置在所述立管的出口部分处的至少一个装置，并且用作热交换器以通过混合所述低沸点介质液体和包含所述低沸点介质液体的两相流来产生所述低沸点介质蒸气的饱和蒸气 低沸点中蒸气和所述混合物，并使所述两相流通过所述低沸点介质蒸气和作为旋风分离器以分离所述饱和蒸气和所述混合物。
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