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    • 1. 发明申请
    • VALVE POSITIONER SYSTEM
    • 阀门定位系统
    • WO9905576A3
    • 1999-11-04
    • PCT/US9814978
    • 1998-07-20
    • DRESSER IND
    • COLWELL CHRISTOPHERLEVESQUE PETERSCHOONOVER LARRYZHOU CHUNHEVILLIER RAYMONDVITAL DENIS GSTARES JAMESBOGER HENRY
    • F15B5/00F15B19/00G05B5/01G05B7/02G05B11/42G05B19/44F16D43/07F16H37/00G06F19/00F23H5/26
    • F15B19/005F15B5/006G05B5/01G05B7/02G05B11/42G05B19/44G05B2219/25252G05B2219/41032G05B2219/41143G05B2219/41154G05B2219/41304G05B2219/41311
    • A valve (10) positioner system (12) that includes one or more unique control methods and devices, including several routines (80) to facilitate the continuous maintenance, calibration and adjsutment requirements of the valve. The positioner system may utilize pressure and position feedback signals (42) to monitor the valve. The positioner system may utilize an external controller (18) for various diagnostic and other routines (80). The positioner system (12) can provide automatic positioning and can operate in a manual operating mode or an automatic operating mode. The positioner system (12) can diagnose the valve while the valve process is running or during a maintenance operation. The positioner system (12) can provide nonlinear control of the valve position. The positioner system (12) can self-tune and self-characterize the valve to assure uniform position control. The positioner system (12) can provide valve control through pressure feedback (40) when a position feedback (42) fails or other diagnosed problems. The positioner system (12) can provide constraints to prevent slope reversal or slope changes in the valve characterization that would produce undesirable valve gain.
    • 一种阀(10)定位器系统(12),其包括一个或多个独特的控制方法和装置,包括几个例程(80),以便于阀的连续维护,校准和调节要求。 定位器系统可以利用压力和位置反馈信号(42)来监视阀。 定位器系统可以利用外部控制器(18)用于各种诊断和其他程序(80)。 定位器系统(12)可以提供自动定位并且可以在手动操作模式或自动操作模式下操作。 定位器系统(12)可以在阀过程运行期间或在维护操作期间诊断阀。 定位器系统(12)可以提供阀位置的非线性控制。 定位器系统(12)可以自动调节和自动表征阀门,以确保均匀的位置控制。 当位置反馈(42)故障或其他诊断问题时,定位器系统(12)可以通过压力反馈(40)提供阀门控制。 定位器系统(12)可以提供约束,以防止将产生不希望的阀增益的阀特性中的斜率反转或斜率变化。