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    • 1. 发明专利
    • Steam turbine seal device and steam turbine equipped with the same
    • 蒸汽涡轮密封装置和蒸汽涡轮机配备
    • JP2005002917A
    • 2005-01-06
    • JP2003168014
    • 2003-06-12
    • Toshiba Corp株式会社東芝
    • ONO MUNEHISAASAI KIWAMUOKUNO KENICHISHINOZAKI YUKIO
    • F01D11/08F01D5/28F01D25/32F16J15/447
    • PROBLEM TO BE SOLVED: To provide a steam turbine seal device and a steam turbine equipped with the same facilitating adjustment of a gap between a diaphragm and a blade, excellent in maintenance property and corrosion resistance, and capable of maintaining turbine efficiency good in long term employment of the steam turbine. SOLUTION: The steam turbine is composed of a turbine wheel, a blade planted in the turbine wheel, a seal fin provided on a leading edge of the blade, a diaphragm outer wheel, a diaphragm inner wheel, and a nozzle blade held between the diaphragm outer wheel and the diaphragm inner wheel. A detachable ring segment is installed on a part facing a blade leading edge of a inner circumference surface of a seal ring holder extending from the diaphragm outer wheel and a gap formed by the seal fin and the ring segment can be adjusted. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种汽轮机密封装置和配备有相同的汽轮机,便于调节隔膜和叶片之间的间隙,维护性能和耐腐蚀性优异,并且能够保持涡轮机效率良好 在蒸汽轮机的长期使用中。 解决方案:蒸汽轮机由涡轮机叶轮,植在涡轮机叶轮中的叶片,设置在叶片前缘上的密封翅片,隔膜外轮,隔膜内轮和保持的喷嘴叶片组成 在隔膜外轮和隔膜内轮之间。 可拆卸环段安装在面对从隔膜外轮延伸的密封环保持器的内周表面的刀片前缘的部件上,并且可以调节由密封翅片和环形段形成的间隙。 版权所有(C)2005,JPO&NCIPI
    • 3. 发明专利
    • Method for balancing at low speed of rotary apparatus and device for balancing at low speed
    • 用于平衡低速旋转装置的方法和用于平衡低速的装置
    • JP2007327369A
    • 2007-12-20
    • JP2006157636
    • 2006-06-06
    • Toshiba Corp株式会社東芝
    • MURAKAMI MASAKIODA YUKINORISHINOZAKI YUKIO
    • F01D25/00F01D5/10F02C7/00F16F15/32G01M1/32G01M1/38
    • PROBLEM TO BE SOLVED: To reduce risk of vibration in field due to unbalance residing at a center part in a bearing span of a rotary apparatus and improve unbalance removing accuracy. SOLUTION: First unbalance is measured under a condition where the rotary apparatus is rotated at low speed, second unbalance is measured by rotating the rotary apparatus again at low speed under a condition where first both end part balance weights calculated back from the first unbalance are attached at an appropriate positions of axial direction both end parts of the rotary apparatus, third unbalance is measured by rotating the rotary apparatus again at low speed under a condition where a first center part balance weight calculated back from the second unbalance is attached at a center part of the rotary apparatus and the first both end part balance weights attached on the axial direction both end parts are removed, and risk of vibration due to unbalance residing at the center part of the rotary apparatus is reduced by attaching second both end part balance weights calculated back from the third unbalance at the axial direction both end parts of the rotary apparatus. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了减少由于位于旋转装置的轴承跨度的中心部分处的不平衡而导致的现场振动的风险,并且改善了不平衡去除精度。 解决方案:在旋转装置以低速旋转的条件下测量第一不平衡,通过在低速下再次旋转旋转装置来测量第二不平衡,条件是在从第一 在旋转装置的两个端部的轴向的适当位置处附接不平衡,通过在从第二不平衡计算出的第一中心部分平衡重被附接在第一中心部平衡重被附接的状态下以低速再次旋转旋转装置来测量第三不平衡 旋转装置的中心部分和安装在轴向上的第一两端部平衡重的两个端部被去除,并且通过将第二两端部分附接到旋转装置的中心部分由于不平衡而引起的振动的风险降低 平衡重量从旋转装置的轴向两端部的第三不平衡度计算出。 版权所有(C)2008,JPO&INPIT
    • 4. 发明专利
    • Steam turbine plant
    • 蒸汽涡轮机厂
    • JP2006046088A
    • 2006-02-16
    • JP2004224828
    • 2004-07-30
    • Toshiba Corp株式会社東芝
    • YAMASHITA KATSUYASHINOZAKI YUKIO
    • F01D25/12
    • PROBLEM TO BE SOLVED: To provide a steam turbine plant having a high-medium-pressure integral type structure which accommodates high-pressure and medium-pressure turbines in a turbine casing, wherein the realization of the high temperature of reheating steam supplied to the medium-pressure turbine is achieved. SOLUTION: In the steam turbine plant which has a high-medium-pressure integral type structure for accommodating a high-pressure turbine part 2 and a medium-pressure turbine part 3 in a turbine casing 1, when steam reversed from an outlet in a high-pressure turbine first stage 9a of a high-pressure turbine part 2 is supplied to wheels 18a, 18b in a medium-pressure turbine first stage 14a in the medium-pressure turbine part 3 through the medium of an intermediate gland part 16 provided so as to straddle the high-pressure turbine nozzle box 5 and the high-pressure and medium-pressure turbine parts 2, 3, a cooling steam supply means 23 for supplying cooling steam to the steam reversed from the outlet in the high-pressure turbine first stage 9a of the high pressure turbine part 2 to be mixed is provided to the intermediate gland part 16. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种具有高中压一体型结构的蒸汽轮机设备,其在涡轮机壳体中容纳高压和中压涡轮机,其中提供再加热蒸汽的高温 达到中压涡轮机。 解决方案:在具有用于容纳涡轮壳体1中的高压涡轮机部分2和中压涡轮机部分3的高中压一体型结构的汽轮机设备中,当从出口 在高压涡轮机部件2的高压涡轮机第一级9a中,通过中压涡轮部件3的介质供应到中压涡轮机部件3的中压涡轮机第一级14a中的车轮18a,18b 设置成跨越高压涡轮喷嘴箱5和高压中压涡轮机2,3,冷却蒸汽供给装置23,用于将冷却蒸汽供给到从高压部分的出口反转的蒸汽 要混合的高压涡轮机部分2的涡轮机第一级9a被提供到中间压盖部分16.版权所有:(C)2006,JPO&NCIPI
    • 5. 发明专利
    • Swirl flow prevention device for fluid machine
    • 用于流体机的SWIRL流量预防装置
    • JP2007120476A
    • 2007-05-17
    • JP2005317484
    • 2005-10-31
    • Toshiba Corp株式会社東芝
    • HIRANO TOSHIOSAKAKIDA HITOSHISHINOZAKI YUKIOSASAKI TAKASHIMURAKAMI ITARUIKEDA KAZUTAKAOISHI YASUSHI
    • F01D11/04F02C7/28F04D29/08F16J15/447
    • PROBLEM TO BE SOLVED: To provide a swirl flow prevention device for a fluid machine suppressing self-excited vibration caused by a labyrinth seal without damaging sealing effect of fluid originally intended for the labyrinth seal, and facilitating attachment and replacement work.
      SOLUTION: This swirl flow prevention device for the fluid machine is provided with a rotation part 21 and a stationary part 20, and the labyrinth seal 27 between a diaphragm 26 surrounding an end of the rotation part 21 and supporting the stationary part 20 and the end of the rotation part 21. A guide vane 29 is provided on an inlet side facing the labyrinth seal 27 and on a corner part of the diaphragm 26 supporting the stationary part 20, and the guide vane 29 is detachably attached to the diaphragm 26.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种用于抑制由迷宫式密封引起的自激振动的流体机械的涡流防止装置,而不会损害最初用于迷宫式密封件的流体的密封效果,并且便于附接和更换工作。 解决方案:这种用于流体机械的涡流防止装置设置有旋转部21和静止部20,并且迷宫式密封27位于围绕旋转部21的端部并支撑固定部20的隔膜26之间 旋转部21的端部。导向叶片29设置在面向迷宫式密封件27的入口侧和支撑静止部20的隔膜26的角部上,导向叶片29可拆卸地附接到隔膜 26.版权所有(C)2007,JPO&INPIT
    • 6. 发明专利
    • Shaft seal
    • 轴封
    • JP2006132635A
    • 2006-05-25
    • JP2004321198
    • 2004-11-04
    • Toshiba Corp株式会社東芝
    • YAMASHITA TATSUOSAKAKIDA HITOSHIICHIMONJI MASAYUKIIKEDA KAZUNORIHIRANO TOSHIOKITAGUCHI KOICHISHINOZAKI YUKIO
    • F16J15/22F01D11/02F04D29/08
    • PROBLEM TO BE SOLVED: To provide a shaft seal which is simply structured and is capable of reducing appropriately a fluid leakage loss as well as being able to offer invariably certain gap adjusting operation. SOLUTION: In a transient operation where low load is applied, a gap between a thin-plate member and an opposite member is held large and contact abrasion of the thin-plate member is prevented, whereas in a high-load operation, the gap is held small due to a deformation of the thin-plate member. Hence, the gap in a seal portion can be automatically adjusted without fail and besides the fluid leakage loss in the high-load operation can be reduced, thus obtaining the effect of enabling efficient operation. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供一种简单构造并能够适当地减少流体泄漏损失以及能够提供一定的间隙调节操作的轴封。 解决方案:在施加低负载的瞬时操作中,薄板构件和相对构件之间的间隙保持较大,并且防止了薄板构件的接触磨损,而在高负载操作中, 由于薄板构件的变形,间隙保持较小。 因此,可以自动调整密封部的间隙,并且能够降低高负荷运转时的流体泄漏损失,从而获得有效的运转效果。 版权所有(C)2006,JPO&NCIPI
    • 7. 发明专利
    • Rotary machine and shaft seal mechanism
    • 旋转机和轴封机构
    • JP2006132691A
    • 2006-05-25
    • JP2004323536
    • 2004-11-08
    • Toshiba Aitekku KkToshiba Corp東芝アイテック株式会社株式会社東芝
    • YAMASHITA TATSUOICHIMONJI MASAYUKISAKAKIDA HITOSHIIKEDA KAZUNORIHIRANO TOSHIOKITAGUCHI KOICHISHINOZAKI YUKIOTSUTSUI MASASHI
    • F16J15/447F04D29/08F04D29/10
    • PROBLEM TO BE SOLVED: To smooth radially inward movements of a seal segment of a shaft seal mechanism.
      SOLUTION: The shaft seal mechanism includes seal segments 5 that extend circularly at an outside of the rotary shaft 1 and a plurality of which lies adjacent to one another circumferentially to be arranged so as to surround the circumference by all the segments, a seal ring holder 4 that forms a seal fins 6 that are fixed to an inside of the seal segments 5 and protrudes toward the rotary shaft 1 and further extends circumferentially, and a pressure chamber 8 that is fixed to a partition wall and into which a fluid of a high-pressure chamber 2 is drawn and holds the seal segments 5 so that the seal segments 5 is movable radially by making an outer circumference of the seal segments 5 contact with the pressure chamber 8, and an elastic member 9 for energizing the seal segments 5 outward. The seal segments 5 is pushed axially by a pressure difference between the high-pressure chamber 2 and a low-pressure chamber 3 to contact with the seal ring holder 4 at a contacting and depressing surface 10, while the contacting and depressing surface 10 tilts so that its diameter gets smaller toward the low-pressure chamber 3.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了平滑轴封机构的密封段的径向向内运动。 解决方案:轴封机构包括在旋转轴1的外侧圆形延伸的密封部分5,并且沿周向彼此相邻的多个密封部分5被布置为围绕所有部分的圆周, 形成密封翅片6的密封环保持件4,该密封片6固定到密封部5的内部并朝向旋转轴1突出并且进一步沿周向延伸;以及压力室8,固定到分隔壁,流体 并且保持密封段5,使得密封段5可通过使密封段5的外周与压力室8接触而径向移动;以及弹性构件9,用于激励密封件 5段向外。 密封段5被高压室2和低压室3之间的压差轴向推压,以在接触和压下表面10处与密封环保持件4接触,同时接触和压下表面10倾斜 其直径朝向低压室3变小。(C)2006年,JPO&NCIPI
    • 8. 发明专利
    • Steam turbine power generating unit
    • 蒸汽涡轮发电机组
    • JP2005060826A
    • 2005-03-10
    • JP2004181536
    • 2004-06-18
    • Toshiba Corp株式会社東芝
    • TAKAHASHI SHIGEKOISHII RYUICHITSUDA YOICHIOKITA NOBUOYAMASHITA KATSUYASHINOZAKI YUKIOFUKUDA MASAFUMITAKAHASHI TAKEO
    • F01D5/28C21D9/00C22C19/05C22C19/07C22C30/00C22C38/00C22C38/58F01D25/00
    • F01K7/16C22C19/055C22C19/056C22C19/058C22C30/00C22C38/001C22C38/02C22C38/04C22C38/44C22C38/46C22C38/48C22C38/50C22C38/52C22C38/54
    • PROBLEM TO BE SOLVED: To provide a steam turbine power generating unit which inhibits increase in facility cost and generation of excessive thermal stress at load transition such as unit start-up or shut-down and offers a high thermal efficiency and good operational characteristics, by using austenitic heat-resistant steel or an Ni alloy exclusively for prescribed structural members in an intermediate pressure turbine. SOLUTION: The steam turbine power generating unit has the intermediate pressure turbine divided into a high-temperature intermediate pressure turbine part 11a of a high-temperature high-pressure side and a low-temperature intermediate pressure turbine part 11b of a low-temperature low-pressure side. Here, the high-temperature intermediate pressure turbine 11a comprises the structural members formed from the austenitic heat-resistant steel or the Ni alloy and is operated by steam at a temperature of ≥650°C. Other turbines are formed mainly from ferritic heat-resistant steel. This provides the economical steam turbine power generating unit which has a high thermal efficiency. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种蒸汽轮机发电单元,其抑制设备成本的增加和在诸如单元启动或关闭的负载转变时产生过大的热应力,并且提供高的热效率和良好的操作 特性,通过在中压涡轮机中使用专门用于规定结构构件的奥氏体耐热钢或Ni合金。 解决方案:蒸汽轮机发电单元具有分为高温高压侧的高温中压涡轮部11a和低压高压侧的低温中压涡轮部11b的中压涡轮机, 温度低压侧。 这里,高温中间压力涡轮机11a包括由奥氏体耐热钢或Ni合金形成的结构件,并且在≥650℃的温度下由蒸汽操作。 其他涡轮主要由铁素体耐热钢形成。 这提供了具有高热效率的经济型蒸汽轮机发电单元。 版权所有(C)2005,JPO&NCIPI
    • 9. 发明专利
    • Steam turbine
    • 汽轮机
    • JP2004353603A
    • 2004-12-16
    • JP2003154361
    • 2003-05-30
    • Toshiba Corp株式会社東芝
    • NAGANE KOHEIYAMASHITA KATSUYASHINOZAKI YUKIO
    • F01D9/02F01D25/12F01D25/24
    • PROBLEM TO BE SOLVED: To provide a steam turbine in which a turbine nozzle box can secure high level of strength guarantee by coping with superhigh temperature reheated steam.
      SOLUTION: In the steam turbine, an intermediate pressure turbine 2 is divided into a first intermediate pressure turbine 2a and a second intermediate pressure turbine 2b. The divided first intermediate pressure turbine 2a is arranged as a top turbine. The second intermediate pressure turbine 2b is assembled in a steam turbine part 1 arranged as a bottom turbine. While steam from a high pressure turbine in the steam turbine part 1 is supplied to a turbine nozzle box 31 mounted in the first intermediate pressure turbine 2a as cooling steam and a wall inside surface of a wall 37 in the turbine nozzle box is covered with a shield plate 41.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:提供一种汽轮机,其中涡轮喷嘴箱可以通过应对超高温再热蒸汽来确保高水平的强度保证。 解决方案:在汽轮机中,中压涡轮机2分为第一中压涡轮机2a和第二中压涡轮机2b。 分配的第一中压涡轮机2a被布置为顶涡轮。 第二中压涡轮机2b组装在布置为底部涡轮机的蒸汽涡轮机部件1中。 当蒸汽轮机部分1中的来自高压涡轮机的蒸汽被供给到安装在第一中间压力涡轮机2a中的涡轮喷嘴箱31作为冷却蒸汽,并且在涡轮喷嘴箱中的壁37的内壁表面被 屏蔽板41.版权所有(C)2005,JPO&NCIPI
    • 10. 发明专利
    • Steam turbine plant and method for cooling its intermediate pressure turbine
    • 蒸汽涡轮机和冷却其中压压力涡轮机的方法
    • JP2010121632A
    • 2010-06-03
    • JP2010023527
    • 2010-02-04
    • Toshiba Corp株式会社東芝
    • YAMASHITA KATSUYANAGANE KOHEISHINOZAKI YUKIO
    • F01D25/24F01D25/12F01D25/26F01K7/22F01K13/00
    • F01K13/006B22F2998/10F01D25/12F05D2260/2322
    • PROBLEM TO BE SOLVED: To provide a steam turbine plant having further improved plant heat efficiency by raising the temperature of reheated steam to an ultra higher temperature while coping with the higher temperature of the reheated steam to consistently guaranteeing high strength of turbine structural components, and to provide a method for cooling the steam turbine plant.
      SOLUTION: The steam turbine plant includes a steam generator 9 combined with a steam turbine 1, a condensation system 13, and a water supply system 14. A nozzle box is provided on an intermediate pressure turbine 2 of the steam turbine part 1 for supplying reheated steam from the steam generator 9 via the nozzle box 45. Cooling steam is introduced each into a space between a rotor 30 of the intermediate pressure turbine 2 and an inside casing 28 and into a space between the inside casing 28 and an outside casing 27 for cooling a stage located at least on the most upstream side, out of the nozzle box 45 and the turbine stage 29.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了提供一种蒸汽轮机设备,通过将再热蒸汽的温度提高到更高的温度,同时应对再热蒸汽的较高温度来提供更高的设备热效率,以始终如一地保证涡轮结构的高强度 组件,并提供一种冷却蒸汽轮机设备的方法。 蒸汽轮机设备包括与蒸汽轮机1,冷凝系统13和供水系统14组合的蒸汽发生器9.喷嘴箱设置在蒸汽轮机部分1的中压涡轮机2上 用于经由喷嘴箱45从蒸汽发生器9供应再加热的蒸汽。将冷却蒸汽引入到中压涡轮机2的转子30与内壳体28之间的空间中,并进入内壳28和外部壳体28之间的空间 壳体27,用于将至少位于最上游侧的台阶冷却出喷嘴箱45和涡轮级29。版权所有(C)2010,JPO&INPIT