ACTUATOR FOR WELL-HEAD VALVE OR OTHER SIMILAR APPLICATIONS AND SYSTEM INCORPORATING SAME
    1.
    发明申请
    ACTUATOR FOR WELL-HEAD VALVE OR OTHER SIMILAR APPLICATIONS AND SYSTEM INCORPORATING SAME 审中-公开
    用于井头阀门的其他类似应用和系统的执行器

    公开(公告)号:WO2004063607A3

    公开(公告)日:2005-05-12

    申请号:PCT/US2004000500

    申请日:2004-01-08

    CPC classification number: E21B34/16 E21B34/02 F16K31/046 F16K31/047

    Abstract: An electrical actuator (10) is particularly suited for driving a wellhead valve (12) for regulating the flow of natural gas from a production well (16). The electrical actuator (10) can be driven using the existing local power supply (24) in wellhead valve systems, typically a solar panel (24) and a battery (26). The electrical actuator (10) may include a gear reduction train (76), a brake (78) and a manual input override (80) with clutch protection. The electrical actuator (10) can be configured in three different operational modes that provides a predetermined position upon power loss including fail-bias fixed, fail open and fail bias closed.

    Abstract translation: 电气致动器(10)特别适于驱动用于调节来自生产井(16)的天然气流的井口阀(12)。 电气致动器(10)可以使用现有的本地电源(24)在井口阀系统(通常为太阳能电池板)和电池(26)中进行驱动。 电动执行器(10)可以包括齿轮减速列(76),制动器(78)和具有离合器保护的手动输入倍率(80)。 电致动器(10)可以被配置为三种不同的操作模式,其在功率损耗时提供预定位置,包括故障偏置固定,故障打开和失效偏置闭合。

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