Magnetic bearing centrifugal compressor and controlling method thereof

    公开(公告)号:US10920784B2

    公开(公告)日:2021-02-16

    申请号:US16293839

    申请日:2019-03-06

    Abstract: A magnetic bearing centrifugal compressor includes a magnetic bearing spindle having a thrust disk, front and rear axial bearings, an impeller and at least one labyrinth seal. The front and the rear axial bearings are disposed individually to opposing sides of the thrust disk. First and second clearances exist axially between the rear and front axial bearings, respectively, and the thrust disk. The impeller connects a front end of the magnetic bearing spindle. The labyrinth seal pairs the magnetic bearing spindle into an oblique arrangement with respect to the axial direction, and each the labyrinth seal is spaced from the magnetic bearing spindle or the impeller by a labyrinth-seal clearance. By controlling the thrust disk axially, a clearance ratio of the first clearance to the second clearance can be varied to adjust the labyrinth-seal clearance. In addition, a magnetic bearing centrifugal compressor controlling method is also provided.

    Inlet guide vane device
    3.
    发明授权
    Inlet guide vane device 有权
    进气导叶装置

    公开(公告)号:US09556883B2

    公开(公告)日:2017-01-31

    申请号:US14173432

    申请日:2014-02-05

    CPC classification number: F04D29/462 F04D17/10 F04D29/4213 F05D2250/51

    Abstract: An inlet guide vane device having a central axis comprises a first base, a guide sleeve, a blade, a second base, a transmission disk, and an actuator. The first base has at least one first support groove and at least one guide groove. The first support groove extends along a radial direction of the central axis, and the at least one guide groove is located in the first support groove. The guide sleeve is disposed on the first support groove in a manner that the guide sleeve is capable of moving along the radial direction. The guide sleeve has a sliding sleeve, an upper guide post and a lower guide post, the sliding sleeve has a through hole extending along the radial direction. The upper guide post and the lower guide post pass through the sliding groove, and the lower guide post is movably disposed on the guide groove.

    Abstract translation: 具有中心轴的入口引导叶片装置包括第一基座,导向套筒,叶片,第二基座,传动盘和致动器。 第一基座具有至少一个第一支撑槽和至少一个引导槽。 第一支撑槽沿着中心轴线的径向方向延伸,并且至少一个引导槽位于第一支撑槽中。 引导套筒以能够沿着径向方向移动的方式设置在第一支撑槽上。 导向套筒具有滑动套筒,上部导向柱和下部导向柱,滑动套筒具有沿径向延伸的通孔。 上引导柱和下引导柱穿过滑动槽,下引导件可移动地设置在引导槽上。

    Centrifugal compressor
    4.
    发明授权

    公开(公告)号:US11248624B2

    公开(公告)日:2022-02-15

    申请号:US16815403

    申请日:2020-03-11

    Abstract: A centrifugal compressor includes a volute base block, a volute cover plate, an impeller, a diffuser-adjusting assembly, a radial constraint assembly, an axial constraint assembly and a driving assembly. A diffuser and a connected volute are formed between the cover plate and the base block. The impeller discharges gas to the centrifugal compressor through the diffuser and the volute. The diffuser adjustment assembly includes a driving ring, a driving rod, a pin and a diffuser ring. The radial constraint assembly is disposed on an inner circumference surface of the driving ring. The axial constraint assembly on an outer circumference surface of the driving ring is located between the top and bottom portions. The drive assembly is to rotate the driving ring. When the driving ring rotates, the pin slides along the pin track, and the driving rod displaces the diffuser ring to adjust a flow-path width of the diffuser.

    CENTRIFUGAL COMPRESSOR
    5.
    发明申请

    公开(公告)号:US20210131447A1

    公开(公告)日:2021-05-06

    申请号:US16815403

    申请日:2020-03-11

    Abstract: A centrifugal compressor includes a volute base block, a volute cover plate, an impeller, a diffuser-adjusting assembly, a radial constraint assembly, an axial constraint assembly and a driving assembly. A diffuser and a connected volute are formed between the cover plate and the base block. The impeller discharges gas to the centrifugal compressor through the diffuser and the volute. The diffuser adjustment assembly includes a driving ring, a driving rod, a pin and a diffuser ring. The radial constraint assembly is disposed on an inner circumference surface of the driving ring. The axial constraint assembly on an outer circumference surface of the driving ring is located between the top and bottom portions. The drive assembly is to rotate the driving ring. When the driving ring rotates, the pin slides along the pin track, and the driving rod displaces the diffuser ring to adjust a flow-path width of the diffuser.

    Adjusting mechanism for centrifugal compressors

    公开(公告)号:US10330115B2

    公开(公告)日:2019-06-25

    申请号:US15451341

    申请日:2017-03-06

    Abstract: An adjusting mechanism, adaptive to a main body of a centrifugal compressor, comprises a diffuser channel width adjusting assembly and a gas bypass assembly. The diffuser channel width adjusting assembly comprises a width adjusting annular plate and a first valve stem. The width adjusting annular plate is movably disposed in a diffuser channel of the main body. The first valve stem is connected to the width adjusting annular plate, and configured for driving the width adjusting annular plate to move to adjust the width of the diffuser channel. The gas bypass assembly comprises a gas bypass valve and a second valve stem. The gas bypass valve is movably disposed in a gas bypass passage of the main body. The second valve stem is connected to the gas bypass valve, and configured for driving the gas bypass valve to move to adjust the opening of the gas bypass port.

    Internal hot gas bypass device coupled with inlet guide vane for centrifugal compressor

    公开(公告)号:US10208758B2

    公开(公告)日:2019-02-19

    申请号:US14991304

    申请日:2016-01-08

    Abstract: An internal hot gas bypass device coupled with inlet guide vane for centrifugal compressor includes an inlet guide vane assembly, a driving motor assembly and a gas bypass valve assembly. The inlet guide vane assembly further includes a master vane, a plurality of slave vanes, a vane-front fixing ring, a vane-rear fixing ring, a vane-driving ring, a connecting pipe and a vane-opening indicating disk. The driving motor assembly further includes a motor, a driving unit and a motor fixing base. The gas bypass valve assembly further includes a valve, an external fixing-and-guiding ring, an internal fixing-and-guiding ring, a driven element, a spring, a sealing ring, a valve stud and a valve base. The driving motor assembly is connected with the driving unit and the master vane of the inlet guide vane assembly via a connecting rod, and is further connected with the slave vanes of the gas bypass valve assembly.

    Inlet guide vane assembly
    8.
    发明授权
    Inlet guide vane assembly 有权
    进气导叶组件

    公开(公告)号:US09534501B2

    公开(公告)日:2017-01-03

    申请号:US14267730

    申请日:2014-05-01

    Abstract: An inlet guide vane assembly is disclosed, which comprises: a housing, configured with a first penetration part and a plurality of first grooves; at least one fixing ring, each configured with a second penetration part and a plurality of second grooves; at least one rotary ring, each configured with a third penetration part and a plurality of sliding chutes, wherein the first, the second and the third penetration parts are arranged in communication with one another; a plurality of vane units, each vane unit is composed of a vane, a linkage and a sliding block; and at least one driving unit, for driving one vane of the plural vanes to swing, thus driving the rotary ring to rotate simultaneously, bringing along the other vanes to swing, enabling the sliding blocks to slide inside corresponding sliding chutes, and consequently flipping the vane from a first state to a second state.

    Abstract translation: 公开了一种入口引导叶片组件,其包括:壳体,其构造有第一穿透部分和多个第一凹槽; 至少一个固定环,每个固定环配置有第二穿透部分和多个第二凹槽; 至少一个旋转环,每个旋转环配置有第三穿透部分和多个滑动滑槽,其中所述第一,第二和第三穿透部分彼此连通布置; 多个叶片单元,每个叶片单元由叶片,连杆和滑块组成; 以及至少一个驱动单元,用于驱动多个叶片中的一个叶片摆动,从而驱动旋转环同时旋转,沿着其他叶片摆动,使得滑块在相应的滑动滑槽内滑动,并因此翻转 从第一状态到第二状态。

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