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    Shaft seal and gas turbine
    1.
    发明授权
    Shaft seal and gas turbine 有权

    公开(公告)号：US07066468B2

    公开(公告)日：2006-06-27

    申请号：US09983881

    申请日：2001-10-26

    申请人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Kouichi Akagi ,  Masanori Yuri

    发明人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Kouichi Akagi ,  Masanori Yuri

    IPC分类号： F16J15/44

    CPC分类号： F16J15/3292

    摘要： An object of the present invention is to provide a shaft seal which reduces the leakage of gas from the high pressure side to the low pressure side, and has excellent corrosion-resistance, and a gas turbine which is equipped with the shaft seal; in order to achieve the object, the present invention provide a shaft seal comprising a plurality of flexible thin plates having width in the axial direction of a rotary shaft, tips thereof sliding against a peripheral face of said rotary shaft, and outer peripheral bases thereof being secured to a casing side maintaining a gap therebetween, said thin plates being laminated in the peripheral direction of said rotary shaft, enabling the outer periphery of said rotary shaft to be sealed, an acute angle being formed between the thin plates and the peripheral face of said rotary shaft; and a low pressure side side-plate and a high pressure side side-plate which are provided on both sides of said thin plates in the axial direction of said rotary shaft, wherein it further comprises a gas pressure adjusting mechanism, which when said thin plates are viewed cross-sectionally along an imaginary plane which is perpendicular to the direction of their width, the face of each thin plate which faces the rotary shaft is deemed a bottom face and the rear side is deemed a top face, and gas pressure from said high pressure side side-plate to said low pressure side side-plate is applied to said thin plates, ensures that the gas pressure applied to said bottom faces is higher than the gas pressure applied to said top faces at a given point along said cross-sectional face of said thin plates, and a gas turbine comprising such shaft seal.

    Axis seal mechanism and turbine
    2.
    发明授权
    Axis seal mechanism and turbine 有权
    轴密封机构和涡轮机

    公开(公告)号：US06736597B2

    公开(公告)日：2004-05-18

    申请号：US10265765

    申请日：2002-10-08

    申请人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Kouichi Akagi ,  Masanori Yuri ,  Shin Koga ,  Takashi Nakano ,  Shin Nishimoto

    发明人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Kouichi Akagi ,  Masanori Yuri ,  Shin Koga ,  Takashi Nakano ,  Shin Nishimoto

    IPC分类号： F01D1100

    CPC分类号： F16J15/3292

    摘要： The present invention reduces the amount of gas which leaks and flows from a high pressure side to a low pressure side of the axis and maintains good sealing performance even at high differential pressures. The invention discloses an axis sealing mechanism comprising casings which are supported inside of the stable portion, a plurality of planar plates, which are mutually spaced around the axis, each of which is fixed to the casings, positioned so that an inner end of each planar plate makes an acute angle with a peripheral surface of the axis and contacts the peripheral surface of the axis over a predetermined length in an axial direction, a high pressure side plate which is arranged at a high pressure side and a low pressure side plate which is arranged at a low pressure side so as to hold the planar plates therebetween and a flexible plate which is arranged between the planar plates and the high pressure side plate, and is flexible in an axial direction. The invention also discloses a turbine which provides the above sealing mechanism.

    摘要翻译： 本发明减少了泄漏并从轴的高压侧流向低压侧的气体量，即使在高压差下也能保持良好的密封性能。 本发明公开了一种轴封机构，其包括被支撑在稳定部分内部的壳体，多个平面板，其围绕所述轴线相互间隔开，每个平面板固定到壳体上，定位成使得每个平面 板与轴的外周面成锐角，并且在轴向上与预定长度的轴线的周面接触，高压侧板配置在高压侧，低压侧板为低压侧板 布置在低压侧以便将平板保持在其间，并且设置在平板和高压侧板之间的柔性板，并且在轴向方向上是柔性的。 本发明还公开了一种提供上述密封机构的涡轮机。

    Shaft seal structure and turbine
    3.
    发明授权
    Shaft seal structure and turbine 有权
    轴密封结构和涡轮

    公开(公告)号：US06976680B2

    公开(公告)日：2005-12-20

    申请号：US10253511

    申请日：2002-09-25

    申请人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Kouichi Akagi ,  Masanori Yuri ,  Takashi Nakano ,  Shin Nishimoto

    发明人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Kouichi Akagi ,  Masanori Yuri ,  Takashi Nakano ,  Shin Nishimoto

    IPC分类号： F01D11/00 ,  F02C7/28 ,  F16J15/32 ,  F16J15/54 ,  F16J15/447

    CPC分类号： F16J15/3292

    摘要： The shaft seal structure is based on a leaf seal that includes springs, disposed between the stator blades and the leaf seal ring, to force the leaf seal ring away from the rotation shaft, and pressure guiding grooves for guiding the fluid pressure, through a boundary of planar plates, to a space between the outer peripheral surface of the leaf seal ring and the inner peripheral surface of the stator blade. Also, a turbine may be provided with the leaf seal so as to reduce gas leakage from the high-pressure-region to the low-pressure-region as well as to control the frictional wear between the planar plates and the rotation shaft.

    摘要翻译： 轴封结构基于叶片密封件，其包括设置在定子叶片和叶片密封环之间的弹簧，以迫使叶片密封环远离旋转轴，以及用于引导流体压力的压力引导槽，通过边界 平板的间隔设置在叶片密封环的外周面与定子叶片的内周面之间的空间。 此外，涡轮机可以设置有叶片密封件，以便减少从高压区域到低压区域的气体泄漏，以及控制平板和旋转轴之间的摩擦磨损。

    SHAFT SEAL DEVICE
    4.
    发明申请
    SHAFT SEAL DEVICE 审中-公开
    轴封装置

    公开(公告)号：US20110309585A1

    公开(公告)日：2011-12-22

    申请号：US13203874

    申请日：2010-06-08

    申请人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Takashi Nakano ,  Shin Nishimoto ,  Yuichi Hirakawa

    发明人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Takashi Nakano ,  Shin Nishimoto ,  Yuichi Hirakawa

    IPC分类号： F16J15/32

    CPC分类号： F16J15/4472 ,  F01D11/02 ,  F05D2240/57 ,  F16J15/3292 ,  F16J15/445

    摘要： A shaft seal device that seals between the outer peripheral surface of a rotating shaft and a stationary member that is provided on the outer peripheral side of the rotating shaft, provided with a thin-plate seal that has a plurality of thin plates that are arranged in the circumferential direction of the rotating shaft and an abradable seal that is arranged at a position differing with the thin-plate seal in the axial direction, and having a free-cutting material that is disposed at either one of the rotating shaft and the stationary member, and a seal fin that projects toward the rotating shaft or stationary member from the other of the rotating shaft and the stationary member.

    摘要翻译： 一种轴封装置，其密封在旋转轴的外周面和设置在所述旋转轴的外周侧的固定构件之间，所述固定构件设置有薄板密封，所述薄板密封具有多个薄板， 旋转轴的圆周方向和布置在与薄板密封件沿轴向不同的位置的可磨损密封件，并且具有设置在旋转轴和固定构件中的任一个上的自由切削材料 以及从旋转轴和固定构件的另一个朝向旋转轴或固定构件突出的密封翅片。

    SHAFT SEAL AND ROTARY MACHINE WITH SAME
    5.
    发明申请
    SHAFT SEAL AND ROTARY MACHINE WITH SAME 有权
    SHAFT密封和旋转机器

    公开(公告)号：US20110316237A1

    公开(公告)日：2011-12-29

    申请号：US13203885

    申请日：2010-06-09

    申请人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Takashi Nakano ,  Shin Nishimoto

    发明人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Takashi Nakano ,  Shin Nishimoto

    IPC分类号： F16J15/447

    CPC分类号： F16J15/3292 ,  F01D11/001 ,  F05D2240/56

    摘要： A shaft seal that is constituted by annularly arranging a plurality of seal segments in the circumferential direction of a rotating shaft, in which each seal segment has a plurality of thin plates that are provided in a predetermined arrangement in the circumferential direction of the rotating shaft, side plates that sandwich the plurality of thin plates from both sides thereof in the axial direction, and retention rings that retain the base ends of the plurality of thin plates and the base ends of the side plates; the distal ends of the thin plates protrude farther toward the rotating shaft than the distal ends of the side plates, and the protrusion length of the distal ends of the thin plates in the vicinity of the end portions in the circumferential direction where adjacent seal segments are connected is set to be less than the protrusion length of the distal ends of the thin plates that are located at the middle of the seal segment in the circumferential direction.

    摘要翻译： 一种轴密封件，其在旋转轴的圆周方向上环形地设置多个密​​封段，其中每个密封段具有沿旋转轴的圆周方向以预定布置设置的多个薄板， 在轴向两侧夹着多个薄板的侧板以及保持多个薄板的基端和侧板的基端的保持环， 所述薄板的前端比所述侧板的前端朝向所述旋转轴的前端突出，并且所述薄板的前端在相邻的密封片段的圆周方向的端部附近的突出长度为 被连接的位置设定为小于位于密封片的中央处的圆周方向的薄板的前端的突出长度。

    Shaft sealing mechanism
    6.
    发明授权
    Shaft sealing mechanism 有权
    轴封机构

    公开(公告)号：US08025296B2

    公开(公告)日：2011-09-27

    申请号：US11584670

    申请日：2006-10-23

    申请人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Takashi Nakano ,  Shin Nishimoto ,  Hirokazu Shirai ,  Toshio Asada

    发明人： Hidekazu Uehara ,  Tanehiro Shinohara ,  Takashi Nakano ,  Shin Nishimoto ,  Hirokazu Shirai ,  Toshio Asada

    IPC分类号： F16J15/447

    CPC分类号： F16J15/3292 ,  F01D11/00 ,  F05D2240/57

    摘要： In a shaft sealing mechanism which prevents fluid from flowing in an axial direction of a rotor through an annular gap between the rotor and a stator, there are provided a high pressure side plate positioned on a high pressure side region of a plurality of sheets, and a low pressure side plate positioned on a low pressure side region of the plurality of sheets, and construction is such that in a state in which the plurality of sheets is fixed on a stator side, and when under gas pressure, the sheets make contact with each other.

    摘要翻译： 在防止流体通过转子和定子之间的环形间隙流过转子轴向的轴封机构中，设置有位于多个片材的高压侧区域的高压侧板， 位于多个片材的低压侧区域的低压侧板，其结构是在多个片材固定在定子侧的状态下，在气体压力下，片材与 彼此。

    Shaft sealing mechanism, structure for mounting shaft sealing mechanism on stator, and turbine
    8.
    发明申请
    Shaft sealing mechanism, structure for mounting shaft sealing mechanism on stator, and turbine 有权
    轴密封机构，定子上安装轴封机构的结构和涡轮机

    公开(公告)号：US20060033285A1

    公开(公告)日：2006-02-16

    申请号：US11200128

    申请日：2005-08-10

    申请人： Shin Nishimoto ,  Tanehiro Shinohara ,  Hidekazu Uehara ,  Takashi Nakano

    发明人： Shin Nishimoto ,  Tanehiro Shinohara ,  Hidekazu Uehara ,  Takashi Nakano

    IPC分类号： F16J15/44

    CPC分类号： F16J15/3292

    摘要： A shaft sealing mechanism of an annular shape having at least one divided portion, which is installed in an annular space between a rotor and a stator, includes a group of thin plates. Outer peripheral ends of the thin plates are joined, and inner peripheral free ends come in contact with the rotor in a sliding manner so that a surface of the rotor and the thin plates form an acute angle to partition the annular space into a high-pressure region and a low-pressure region without being joined. At least a low-pressure gap near the divided portion is set to be larger than a low-pressure gap in a circumferential direction other than near the divided portion.

    摘要翻译： 具有至少一个分割部分的环形轴封机构，其安装在转子和定子之间的环形空间中，包括一组薄板。 连接薄板的外周端，并且内周自由端以滑动方式与转子接触，使得转子和薄板的表面形成锐角，以将环形空间分隔成高压 区域和低压区域而不连接。 在分割部附近的至少一个低压隙被设定为大于在分割部附近的圆周方向上的低压间隙。