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    • 1. 发明专利
    • 捩り振動制振装置
    • 扭转振动阻尼装置
    • JP2014219104A
    • 2014-11-20
    • JP2014170967
    • 2014-08-25
    • 三菱重工業株式会社Mitsubishi Heavy Ind Ltd
    • OKAMOTO NAOYAOYAMA KOJI
    • F16F15/16F16F15/20
    • F16F15/16F16F15/20
    • 【課題】特別な電気的な制御無しに液体負荷を切り替えることができ、捩り振動を有効的に制振することができる。【解決手段】捩り振動制振装置は、回転軸に固定されたディスク11と、ディスク11の端面に形成された凹部14に突没可能に収納された可動体13と、可動体13を凹部14外に向けて付勢する付勢部材16とを備える。可動体13は、前記回転軸が一方側に回転した際に付勢部材16の付勢力に抗して凹部14内に没入するように流体Rから圧力を受ける第1受圧面13aを有するとともに、前記回転軸が他方側に回転した際に流体Rから前記回転軸の接線方向に圧力を受ける第2受圧面13bを有する。凹部14の側壁には底面から開放端側に向って直線状に延びる複数のガイド14aが形成され、可動体13には、ガイド溝14aと係合する係合突起13cが形成されている。【選択図】図5
    • 要解决的问题:提供一种能够在没有特殊电气控制的情况下改变液体载荷并有效地阻尼扭转振动的扭转减振装置。解决方案:扭转减振装置包括固定到旋转轴的盘11,可移动体 存储在形成在盘11的端面中的凹部14中,该突出/缩回方式,以及用于将可移动体13激励到凹部14的外部的激励构件16.可动体13具有第一 压力接收面13a,用于接收来自流体R的压力,使得当旋转轴旋转到一侧时,压力接收面13a克服激励构件16的通电力而缩回到凹部14中,以及用于接收压力的第二压力接收面13b 当旋转轴旋转到另一侧时,从旋转轴的切线方向上的流体R流出。 在凹部14的侧壁上,从底面向开口端的侧面线状地形成有多个引导件14a。 在可移动体13上形成有与引导槽14a啮合的卡合突起13c。
    • 2. 发明专利
    • 捩り振動制振装置
    • 扭转振动阻尼装置
    • JP2014219103A
    • 2014-11-20
    • JP2014170966
    • 2014-08-25
    • 三菱重工業株式会社Mitsubishi Heavy Ind Ltd
    • OKAMOTO NAOYAOYAMA KOJI
    • F16F15/16F16F15/20
    • F16F15/16F16F15/20
    • 【課題】特別な電気的な制御無しに液体負荷を切り替えることができ、捩り振動を有効的に制振することができる。【解決手段】捩り振動制振装置は、回転軸に固定されたディスク11と、ディスク11の端面に形成された凹部14に突没可能に収納された可動体13と、可動体13を凹部14外に向けて付勢する付勢部材16とを備える。可動体13は、前記回転軸が一方側に回転した際に付勢部材16の付勢力に抗して凹部14内に没入するように流体Rから圧力を受ける第1受圧面13aを有するとともに、前記回転軸が他方側に回転した際に流体Rから前記回転軸の接線方向に圧力を受ける第2受圧面13bを有する。凹部14の内部にはディスク11の径方向に延びる回動軸15が設けられ、可動体13は、回動軸15を支点として、回動可能に支持されている。【選択図】図4
    • 要解决的问题:提供一种能够在没有特殊电气控制的情况下改变液体载荷并有效地抑制扭转振动的扭转减振装置。解决方案:扭转减振装置包括固定到旋转轴的盘11,可移动体 存储在形成在盘11的端面中的凹部14中,该突出/缩回方式,以及用于将可移动体13激励到凹部14的外部的激励构件16.可动体13具有第一 压力接收面13a,用于接收来自流体R的压力,使得当旋转轴旋转到一侧时,压力接收面13a克服激励构件16的通电力而缩回到凹部14中,以及用于接收压力的第二压力接收面13b 当旋转轴旋转到另一侧时,从旋转轴的切线方向上的流体R流出。 在凹部14的内部,设置有沿着盘11的径向延伸的转动轴15.移动体13作为支撑点以转动轴15可转动地支撑。
    • 3. 发明专利
    • Damping member for rotary machine
    • 旋转机械阻尼器
    • JP2014167263A
    • 2014-09-11
    • JP2013038697
    • 2013-02-28
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • ONOZATO NAOKIOYAMA KOJI
    • F01D5/16F01D5/22F01D25/06F02C7/24
    • PROBLEM TO BE SOLVED: To improve the damping performance while securing a seal function and inhibit vibrations of a rotary machine member.SOLUTION: A damping member for a rotary machine includes: a first plate part 11 which contacts with a platform 4A of one gas turbine rotor blade 1A; a second plate part 12 which contacts with a platform 4A of the other gas turbine rotor blade 1B; and a viscoelastic damper 13 disposed between the first plate part 11 and the second plate part 12. A recessed groove 41 is provided on a side surface 4a of one gas turbine 1A, and a part of the viscoelastic damper 10 forms a protruding shape bent along the recessed groove 41.
    • 要解决的问题:提高阻尼性能,同时确保密封功能并抑制旋转机械构件的振动。解决方案:用于旋转机器的阻尼构件包括:第一板部分11,其与一个燃气轮机的平台4A接触 转子叶片1A; 与另一燃气轮机转子叶片1B的平台4A接触的第二板部12; 以及设置在第一板部11和第二板部12之间的粘弹性阻尼器13.在一个燃气轮机1A的侧面4a上设置有凹槽41,一部分粘弹性阻尼器10形成为弯曲的突出形状 凹槽41。
    • 4. 发明专利
    • Vibration response monitoring device, rotary machine, and vibration response monitoring method
    • 振动响应监测装置,旋转机和振动响应监测方法
    • JP2014137018A
    • 2014-07-28
    • JP2013006344
    • 2013-01-17
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • TAMURA KAZUHIROOYAMA KOJI
    • F01D5/16F01D25/00F02C7/00G01H17/00
    • PROBLEM TO BE SOLVED: To improve the detection accuracy of moving blade vibration amount, and to further accurately monitor vibration response.SOLUTION: A vibration response monitoring device includes: a sensor portion equipped with a plurality of sensors having an emitting portion for emitting detection light in a direction orthogonal to a rotation shaft toward a rotor in which a plurality of moving blades are attached to the rotation shaft, and a light-receiving portion for receiving reflection light which is the detection light reflected by the moving blades; and a vibration response monitoring portion detecting the vibration amount of the moving blades on the basis of an output value of the light-receiving portion, determining whether the detected vibration amount exceeds a blade vibration limit value previously decided according to a relative positional relationship between the sensor portion and the moving blade, and monitoring the vibration response of the moving blade.
    • 要解决的问题:提高移动叶片振动量的检测精度,并进一步精确地监测振动响应。解决方案:振动响应监测装置包括:传感器部分,其配备有多个传感器,具有发射部分,用于发射检测光 在与旋转轴正交的方向上朝向其上安装有多个活动叶片的转子安装在旋转轴上的光接收部分和用于接收作为由动叶片反射的检测光的反射光的光接收部分; 以及振动响应监测部,其基于所述受光部的输出值来检测所述动叶片的振动量,判定所检测的振动量是否超过根据所述受光部的相对位置关系而预先决定的叶片振动极限值 传感器部分和动叶片,并监测动叶片的振动响应。
    • 5. 发明专利
    • Turbine blades and turbine
    • 涡轮叶片和涡轮机
    • JP2014114734A
    • 2014-06-26
    • JP2012268750
    • 2012-12-07
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • YAMASHITA HIROYUKIMORI KAZUISHIOYAMA KOJI
    • F01D5/16F01D9/02F02C7/00
    • PROBLEM TO BE SOLVED: To provide a turbine blade for suppressing a change in the natural frequency of the turbine blade while damping the vibration of the turbine blade during the operation of a turbine, and to provide the turbine.SOLUTION: A damping part 33 is installed in a recessed part formed ranging from an inside shroud opposite surface 34a toward the inside of an inside shroud 22a, and a connection part 32 as a protruded part for connecting inside shrouds 22a, 22b is extended from an inside shroud opposite surface 34b and the extension portion of the connection part 32 is stored in the damping part 33 of the inside shroud 22a. The connection part 32 and the damping part 33 constitute a damper mechanism 31 as a vibration damping mechanism for damping vibration generated in a turbine stator blade 17.
    • 要解决的问题:提供一种涡轮叶片,用于在涡轮机运行期间抑制涡轮叶片的振动,同时抑制涡轮叶片的固有频率的变化,并提供涡轮机。解决方案:阻尼部件33是 安装在从内罩相对表面34a朝向内罩22a的内部形成的凹部中,并且作为用于连接内罩22a,22b的突出部的连接部32从内罩相对表面34b延伸, 连接部32的延伸部存储在内侧护罩22a的阻尼部33中。 连接部32和阻尼部33构成作为用于抑制在涡轮定子叶片17中产生的振动的振动阻尼机构的减震机构31。
    • 6. 发明专利
    • Steam turbine
    • 汽轮机
    • JP2014095309A
    • 2014-05-22
    • JP2012246101
    • 2012-11-08
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • UOYA HIDEOMIYAWAKI TOSHIHIROOYAMA KOJI
    • F01D9/02F01D25/00F01D25/32
    • PROBLEM TO BE SOLVED: To effectively suppress erosion of a moving blade and deterioration of efficiency due to water droplet.SOLUTION: A steam turbine includes a moving blade and a stationary blade 60 forming steam flow to the moving blade. In the steam turbine, a plurality of projections 90 are formed in a range from a front edge part 63 of the stationary blade 60 in a back side 61 of the stationary blade 60 to 50% or more and 70% or less of the blade width of the stationary blade 60. The projection 90 has an inclination surface in which a projection amount from the surface of the stationary blade 60 increases toward the downstream side of steam, and a cliff surface that forms an acute angle with respect to the inclination surface. The width of the inclination surface is formed so as to narrow toward the downstream side.
    • 要解决的问题:有效地抑制移动叶片的侵蚀和由于水滴引起的效率的劣化。解决方案:蒸汽涡轮机包括形成向动叶片的蒸汽流的活动叶片和固定叶片60。 在蒸汽涡轮机中,在固定叶片60的后侧61的固定叶片60的前端部63的范围内形成有多个突起90为50%以上且70%以下的叶片宽度 突起90具有倾斜表面,其中来自固定叶片60的表面的突出量朝向蒸汽的下游侧增加,并且悬置表面相对于倾斜表面形成锐角。 倾斜面的宽度形成为朝向下游侧变窄。
    • 8. 发明专利
    • Turbine
    • 涡轮
    • JP2013199860A
    • 2013-10-03
    • JP2012067893
    • 2012-03-23
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • MATSUMOTO KAZUYUKIKUWAMURA SACHIHIROOYAMA KOJITANAKA YOSHINORI
    • F01D11/08F01D5/20
    • F01D5/12F01D5/147F01D5/225F01D11/10F05D2240/307F05D2250/28
    • PROBLEM TO BE SOLVED: To provide a turbine capable of reducing a leakage flow rate of fluid that passes through a gap between a top end part of a blade and a structural body, in the turbine including the blade and the structural body, which is disposed on the top end part side of the blade via the gap and relatively rotates with respect to the blade, and causing the fluid to circulate through the gap.SOLUTION: A plurality of stepped parts 52A to 52D which have stepped surfaces 53A to 53D facing an upstream side in a rotating axial direction of a structural body 10 and are protruded to the other side are disposed on a tip end of a blade 50. On the structural body, seal fins 124A to 124D which are extended toward circumferential surfaces 54A to 54D of respective stepped parts and form minute gaps H1 to H4 between the seal fins and the circumferential surfaces of the corresponding stepped parts are formed. Then, distances L1 to L4 from the minute gaps to the stepped surfaces of the upstream side along the rotating axial direction of the structural body are set so as to be smaller for the downstream side stepped parts than the upstream side stepped parts.
    • 要解决的问题:提供一种涡轮机,其能够减少通过叶片的顶端部与结构体之间的间隙的流体的泄漏流量,所述涡轮包括叶片和结构体,所述涡轮机包括叶片和结构体 通过间隙在叶片的顶端部侧上相对于叶片相对旋转,并且使流体循环通过间隙。多个阶梯部分52A至52D,其具有朝向叶片的台阶表面53A至53D 结构体10的旋转轴向的上游侧并且突出到另一侧设置在叶片50的末端。在结构体上,朝向圆周表面54A至54D延伸的密封翅片124A至124D 形成各台阶部件,并且形成密封翅片与相应台阶部分的圆周表面之间的间隙H1至H4。 然后,沿着结构体的旋转轴方向从微小间隙到上游侧的台阶表面的距离L1〜L4被设定为比下游侧阶梯部分小于上游侧台阶部分。
    • 9. 发明专利
    • Steam turbine including steam sealing function and moisture removing function
    • 蒸汽涡轮机,包括蒸汽密封功能和水分去除功能
    • JP2013185494A
    • 2013-09-19
    • JP2012051344
    • 2012-03-08
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • UOYA HIDEOMIYAWAKI TOSHIHIROOYAMA KOJIMACHIDA YUKINORI
    • F01D25/00F01D5/20F01D9/02F01D9/06F01D11/02F01D11/04F01D25/24F01D25/32
    • F01D25/32
    • PROBLEM TO BE SOLVED: To reduce the leakage of effective steam, and to remove moisture in a steam turbine to improve internal efficiency.SOLUTION: A steam turbine 1 includes a plurality of moving vanes 20 arranged while vane tops thereof are made close to the inner peripheral surface of a turbine casing 10, and a plurality of stator vanes 30 held at the inner peripheral side of the turbine casing 10 so as to be adjacent to the moving vanes 20. The steam turbine further includes: an in-vane space 33 which is formed in the stator vane 30, and to which high-pressure steam 61 at a pressure higher than steam 60 flowing to the outside of the stator vane 30 is supplied; a circulation path 11 which communicates with the in-vane space 33 and to which the high-pressure steam 61 is supplied from the in-vane space 33; and one or a plurality of sealing steam introduction and ejection parts 70 which communicate with the circulation path 11 and are formed in the turbine casing 10 in the vicinity of the moving vane 20 in such a way that an ejection opening 71 faces a gap 40 between the vane top of the moving vane 20 and the turbine casing 10, and which ejects the high-pressure steam 61 supplied from the in-vane space 33 via the circulation path 11 from the ejection opening 71.
    • 要解决的问题:减少有效蒸汽的泄漏,并去除蒸汽轮机中的水分以提高内部效率。蒸汽轮机1包括多个移动叶片20,叶片20的叶片顶部靠近内部 涡轮壳体10的周面,以及保持在涡轮壳体10的内周侧的多个定子叶片30,以与活动叶片20相邻。蒸汽轮机还包括叶片间空间33,叶片间空间33 形成在定子叶片30中,并且被供给流过定子叶片30外部的高于蒸汽60的压力的高压蒸汽61; 与叶片间空间33连通并且从叶片间空间33供给高压蒸汽61的循环路径11; 以及一个或多个密封蒸汽引入和喷射部分70,其与循环路径11连通并且在涡轮机壳体10中形成在运动叶片20附近,使得喷射口71面对运动叶片20之间的间隙40, 活动叶片20的叶片顶部和涡轮机壳体10,并且通过循环路径11从喷射口71排出从叶片间空间33供应的高压蒸汽61。
    • 10. 发明专利
    • Shaft sealing apparatus and rotating machine equipped therewith
    • SHAFT密封装置和旋转机械
    • JP2013145007A
    • 2013-07-25
    • JP2012005129
    • 2012-01-13
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • SHINOHARA TANEHIROUEHARA HIDEKAZUNISHIMOTO SHINOYAMA KOJINAKANO TAKASHI
    • F16J15/22F01D11/00F02C7/28F16J15/447
    • F16J15/16F16J15/3292F16J15/442
    • PROBLEM TO BE SOLVED: To downsize a shaft sealing apparatus that divides an annular space into a low-pressure side region and a high-pressure side region by sealing the annular space between a rotor and a stator.SOLUTION: A shaft sealing apparatus 10 is installed in an annular space 9a between a rotor and a stator in a rotating machine, and divides the annular space into a low-pressure side region and a high-pressure side region in an axial direction of the rotor. The shaft sealing apparatus includes a seal body 12 formed by stacking a plurality of thin seal pieces 20, which extend from the stator toward a radial inner side of the rotor, in a circumferential direction of the rotor, and lateral plates 16, 17 having a surface facing the axial direction and curved and extending in a circumferential direction of the annular space. The seal body is welded to the surfaces of the lateral plates which face the axial direction so that the seal body follows a curved shape of the lateral plates.
    • 要解决的问题:通过密封转子和定子之间的环形空间来缩小将环形空间分成低压侧区域和高压侧区域的轴封装置。解决方案:轴封装置10是 安装在旋转机械中的转子和定子之间的环形空间9a中,并且将环形空间分成转子轴向的低压侧区域和高压侧区域。 轴封装置包括:密封体12,其通过在转子的周向上堆叠多个从定子向转子的径向内侧延伸的薄密封件20,以及侧板16,17,其具有 表面面向轴向并弯曲并在环形空间的圆周方向上延伸。 将密封体焊接到侧板的面向轴向的表面,使得密封体遵循侧板的弯曲形状。