METHODS AND APPARATUS TO DIAGNOSE PNEUMATIC ACTUATOR-REGULATING ACCESSORY

• Main Author: BRENDAN KEITH PISCITELLI
• Format: Patent
• Language: Chinese; English
• Published: 30.07.2019
• Subjects: ACTUATING-FLOATS; BLASTING; COCKS; DEVICES FOR VENTING OR AERATING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; TAPS; THERMAL INSULATION IN GENERAL; VALVES; WEAPONS

The present invention discloses methods, apparatus, systems and articles of manufacture to diagnose a pneumatic actuator-regulating accessor. An example method disclosed herein includes stroking a fluid valve operatively coupled to a field instrument and a pneumatic actuator-regulating accessory by pressurizing an actuator operatively coupled to the fluid valve. The example method also includes blocking a supply to the pneumatic actuator-regulating accessory and the field instrument, exhausting pressurized air from the actuator via the field instrument, measuring at least one of (1) positionsof the fluid valve or (2) an output pressure as the pressurized air is exhausted from the actuator, and identifying a first operation of the pneumatic actuator-regulating accessory based on at least one of a travel rate of the fluid valve or the output pressure, the travel rate of the fluid valve based on the measured positions of the fluid valve. 公开了用于诊断气动致动器调节附件的方法、装置、系统和制品。本文所公开的示例方法包括：通过对致动器加压来使可操作地耦接到现场仪器和气动致动器调节附件的流