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    • 7. 发明授权
    • Seal assembly for centrifugal compressors
    • 离心压缩机密封组件
    • US09488187B2
    • 2016-11-08
    • US14172490
    • 2014-02-04
    • DRESSER-RAND COMPANY
    • Patrice BardonRaphael BridonWee Sen NgWilliam Runyan
    • F16J15/38F04D29/12
    • F04D29/12F04D29/124
    • A sealing system for process gas leakage from a turbomachine casing is provided. The sealing system may include a seal assembly housing coupled to or integral with the turbomachine casing. The seal assembly housing defines a bore configured to receive a rotary shaft and a sealing assembly. The sealing assembly includes a plurality of carbon rings mounted circumferentially about the rotary shaft. The plurality of carbon rings may include an inboard carbon ring configured to prevent flow of a separation gas inboard of the barrier seal, an outboard carbon ring configured to prevent flow of contaminates into the seal assembly housing, and an intermediate carbon ring interposed between the inboard carbon ring and outboard carbon ring. A pressure differential is maintained across the inboard carbon ring, such that the separation gas is prevented from flowing inboard across the inboard carbon ring by a residual portion of a seal gas.
    • 提供了一种用于从涡轮机壳体处理气体泄漏的密封系统。 密封系统可以包括联接到涡轮机壳体或与涡轮机壳体一体的密封组件壳体。 密封组件壳体限定了构造成容纳旋转轴和密封组件的孔。 密封组件包括围绕旋转轴周向安装的多个碳环。 多个碳环可以包括内部碳环,其被构造成防止隔离密封件内侧的分离气体的流动,外侧碳环被构造成防止污染物流入密封组件壳体中,以及插入在内侧之间的中间碳环 碳环和外侧碳环。 在内侧碳环上保持压力差,从而防止分离气体通过密封气体的残留部分在内侧流入内侧碳环。
    • 8. 发明申请
    • Sealing Microsawtooth Ring Joint of Two Opposing Surfaces
    • 密封两个相对表面的微锯齿环接头
    • US20150192208A1
    • 2015-07-09
    • US14221789
    • 2014-03-21
    • Changxiang XU
    • Changxiang XU
    • F16K3/22F16J15/38
    • F16K3/22F16J15/04F16J15/062F16J15/38F16K1/34F16K1/385F16K1/42F16K3/02F16K3/0227F16K5/0668F16K25/00F16L23/162F16L23/18
    • A sealing microsawtooth ring joint, made between a toothed seating surface and a full plain seated surface by a microsawtooth ring with its tooth crest on the seating surface being a cutting edge whose corner or whose crest angle is about 90°˜120°, with its tooth height Zt being about 10˜20 times the roughness Ra of the seated surface, and with the ratio of its tooth pitch Xs to its tooth height Zt being 20˜500 to ensure that the tight joint has a microcosmic line contact followed by a surface contact or to ensure that the tight joint has both such a line contact as to be able to provide a necessary seating stress locally and such a surface contact as to be able to protect the line contact from being excessively pressed to get blunt or disappeared, can be used either as a pressure-tight joint or as a self-energizing tight joint of any too surfaces such as flats to flats, cones to cones or spheres, spheres to spheres or cones etc., thus simplifying and unifying the designing, calculating, manufacturing, selecting, installing and maintaining of fussy gaskets for a tight joint of flat surfaces, avoiding the lapping of formed jointing surfaces without using soft gaskets, increasing the reliability of tight joints sod the utilizing coefficient of natural resources. The sealing microsawtooth ring joint can still have an extra sealing reliability and safety sensation by selectively adding one of four basic gland seals.
    • 一个密封的微锯齿环接头,由一个微型锯齿形环在一个齿形的座面和一个完整的平坦的座位表面之间,其座位表面上的齿顶是一个切削刃,其角部或其顶角约为90°〜120°, 牙齿高度Zt为座位表面的粗糙度Ra的10〜20倍,其齿距Xs与牙齿高度Zt的比例为20〜500,以确保紧密接头具有微观线接触,然后是表面 接触或确保紧密接头具有这样的线接触,以便能够局部地提供必要的就座应力,并且这种表面接触能够保护线接触不被过度压扁以消失或消失, 可用作压力接头或任何太平表面的自增力紧密接头,例如扁平物,锥体,锥体或球体,球体到球体或球体等,从而简化和统一设计,计算 用于平面紧密接合的笨重垫片的制造,选择,安装和维护,避免了在不使用软垫片的情况下研磨成形接合面,增加了紧密接头的可靠性,提高了自然资源的利用系数。 通过选择性地添加四个基本密封圈中的一个,密封微锯齿环接头仍然可以具有额外的密封可靠性和安全感。
    • 9. 发明申请
    • Split Seal for a Shaft
    • 轴的分离密封
    • US20150069717A1
    • 2015-03-12
    • US14021121
    • 2013-09-09
    • Dan Gabriel Teodosiu
    • Dan Gabriel Teodosiu
    • F16J15/38
    • F16J15/4474
    • A shaft seal includes first and second rings, each formed from first and second discrete arc segments, mounted on a shaft. The first ring includes a central opening and a flange projecting axially away from a first axial surface of the first ring around the central opening, and the flange has a radially outer surface. The second ring has a radial inner face defining a central opening that includes a first portion extending from a first axial face of the second ring and a second portion extending from a second axial face of the second ring, and the second ring is mounted to the first ring with the second portion in contact with the radially outer surface of the flange. A plurality of fasteners extend from the second ring into an axial surface of the first ring or from the first ring into an axial face of the second ring.
    • 轴密封件包括第一和第二环,每个由安装在轴上的第一和第二离散弧段形成。 第一环包括中心开口和沿中心开口轴向远离第一环的第一轴向表面突出的凸缘,并且凸缘具有径向外表面。 第二环具有限定中心开口的径向内表面,其包括从第二环的第一轴向面延伸的第一部分和从第二环的第二轴向面延伸的第二部分,并且第二环安装到 第一环与第二部分接触凸缘的径向外表面。 多个紧固件从第二环延伸到第一环的轴向表面或从第一环延伸到第二环的轴向表面。
    • 10. 发明授权
    • Shaft sealing apparatus
    • 轴封装置
    • US08511689B2
    • 2013-08-20
    • US13260429
    • 2010-02-24
    • Hidekazu Takahashi
    • Hidekazu Takahashi
    • F16J15/34F16J15/38
    • F16J15/3484F16J15/38
    • A shaft sealing apparatus of including a first mechanical seal having a mating ring disposed at the sealed fluid side and which rotates along with a shaft as the inner circumference side thereof is fixed to the shaft side, and a sealing ring disposed at the air side with respect to the mating ring and is slidable against the mating ring and which does not rotate along with the shaft. An annular space in which the sealed fluid exists is formed at the outer circumferential face side of the first mechanical seal. The shaft sealing apparatus further includes a protection cover disposed adjacent to the sealed fluid side of the seal cover in a state of being sealed with the seal cover and with the first mechanical seal respectively by an O-ring so as to suppress exposure of the seal cover to the sealed fluid.
    • 一种轴封装置,包括:第一机械密封件,其具有设置在所述密封流体侧的配合环,并且随着其内周侧固定在所述轴侧而与所述轴一起旋转;以及密封环,其设置在所述空气侧, 相对于配合环,并且能够抵靠配合环滑动,并且不与轴一起旋转。 在第一机械密封件的外周面侧形成有密封流体存在的环状空间。 轴封装置还包括一个与密封盖的密封流体侧相邻设置的保护盖,该保护盖分别通过密封盖和第一机械密封被O形环密封,以便抑制密封件的暴露 覆盖到密封流体。