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    • 1. 发明授权
    • Bearing arrangement for centrifugal pump
    • 离心泵轴承布置
    • US5133639A
    • 1992-07-28
    • US671957
    • 1991-03-19
    • Farral D. GaySteven D. Schneider
    • Farral D. GaySteven D. Schneider
    • F04D1/06F04D29/04F04D29/041F04D29/046F04D29/16
    • F04D29/0465F04D1/063F04D29/0413F04D29/167F05B2240/52
    • The invention is an improvement in a centrifugal pump of the type having two or more pumping stages. Each stage includes a stationary diffuser and a companion rotatable impeller with a wear ring set arranged between the diffuser and impeller of each stage. The improvement includes a bearing ring formed of a hard material, preferably harder than sand. A second bearing ring is formed of a resilient material in thrust-absorbing, sealing contact with the first ring whereby grit or sand may be lodged between the rings without substantially impairing such contact of the rings with one another. In the first embodiment, the bearing rings perform a sealing function as well as absorb axial thrust. In the second embodiment, a primary sealing function is provided by a separate annular disc with which the impeller is in contact.
    • 本发明是具有两个或多个泵送级的类型的离心泵的改进。 每个阶段包括固定的扩散器和伴随的可旋转的叶轮,其具有设置在每个阶段的扩散器和叶轮之间的耐磨环。 改进包括由硬质材料形成的轴承环,优选比沙子更硬。 第二轴承环由弹性材料形成,以与第一环进行推力吸收,密封接触,由此砂粒或砂可以被放置在环之间,而基本上不会损坏环彼此的这种接触。 在第一实施例中,轴承环执行密封功能以及吸收轴向推力。 在第二实施例中,主密封功能由与叶轮接触的单独的环形盘提供。
    • 7. 发明授权
    • Gas-lock re-prime device for submersible pumps and related methods
    • 潜水泵用气锁重新设备及相关方法
    • US06684946B2
    • 2004-02-03
    • US10121273
    • 2002-04-12
    • Farral D. GayKenneth T. Bebak
    • Farral D. GayKenneth T. Bebak
    • E21B4300
    • E21B43/128E21B34/08
    • A submersible pump assembly has a pump and a valve connected to the outlet of the pump. An outlet of the valve is connected to a riser. A valve member in the valve housing is vertically movable between a pumping position and a priming position, the valve member being biased toward the priming position. A priming conduit connects the outlet of the valve housing to the inlet of the pump for directing well fluids flowing through the conduit into an intake of the pump for re-priming the pump. When the pump is pumping well fluid, the valve member is moved to the pumping position by the fluid pressure, well fluids flowing from the inlet of the valve housing to the outlet of the valve housing but not through the priming conduit. When pumping ceases, the valve member returns to the priming position, well fluids flowing through the priming conduit for re-priming the pump.
    • 潜水泵组件具有泵和连接到泵的出口的阀。 阀的出口连接到提升管。 阀壳体中的阀构件可在泵送位置和起动位置之间垂直移动,阀构件被朝向起动位置偏置。 启动管道将阀壳体的出口连接到泵的入口,用于将流过导管的井流体引导到泵的入口中,以重新启动泵。 当泵泵送好的流体时,阀构件通过流体压力移动到泵送位置,阱流体从阀壳体的入口流到阀壳体的出口而不通过引燃管道。 当泵送停止时,阀构件返回到起动位置,井流体流过起动管道以重新启动泵。