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Method and apparatus for automatically detecting a faulty configuration of a pneumatic actuator

A detection method and actuator technology, which is applied in fluid pressure actuation devices, valve operation/release devices, valve devices, etc., and can solve problems such as failure configuration of double-acting actuators

Active Publication Date: 2020-10-16
EMERSON PROCESS MANAGEMENT VALVE AUTOMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the double-acting actuator has a fail-in-last-position fail configuration

Method used

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  • Method and apparatus for automatically detecting a faulty configuration of a pneumatic actuator
  • Method and apparatus for automatically detecting a faulty configuration of a pneumatic actuator
  • Method and apparatus for automatically detecting a faulty configuration of a pneumatic actuator

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Embodiment Construction

[0022] The supply of pressurized control fluid to one or more ports of the pneumatic actuator may be due to the actuator, a pneumatic module operatively coupled to the actuator, and / or a control module operatively coupled to the actuator Fail and / or stop due to a pneumatic failure and / or electrical failure experienced by one or more of them. As used herein in connection with a device (e.g., actuator, control module, etc.), the term "failure configuration" means that a valve directly and / or indirectly controlled and / or operated by the device responds to the device experiencing a fault, such as, for example, a pneumatic fault and / or power failure) present location and / or configuration. For example, an actuator with a fail-close fault configuration is configured such that a valve controlled and / or operated by the actuator assumes a closed position and / or configuration in response to the actuator experiencing a pneumatic fault. As another example, a control module having a fail-c...

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PUM

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Abstract

Methods and apparatus for automatically detecting a faulty configuration of a pneumatic actuator (102) are disclosed. A control module (108) is operatively coupled to the actuator (102), and the actuator (102) is operatively coupled to a valve (104) having a flow control member (110). When the number of pilot valves included in the control module (108) is indicative of a double-acting actuator (102), a fault configuration of the actuator (102) is determined based on the number of pilot valves. When the number of pilot valves included in the control module (108) is indicative of a single-acting actuator (102), a faulty configuration of the actuator (102) is determined by comparing the first and second measurements, in response to The first measurement is obtained by moving the flow control member (110) in a first direction to a first position, in response to moving the flow control member (110) in a second direction opposite the first direction to a second position And acquire the second measurement value.

Description

technical field [0001] The present disclosure relates generally to pneumatic actuators, and more particularly to methods and apparatus for automatically detecting faulty configurations of pneumatic actuators. Background technique [0002] Traditional pneumatic actuators include single-acting actuators and double-acting actuators. A pneumatic module and / or a control module may be operatively coupled to the actuator to assist the actuator in operating and / or to control a valve to which the actuator is operatively coupled. A pneumatic module and / or a control module may be mechanically coupled to and / or integrated with the actuator. [0003] A single-acting actuator includes a drive shaft that moves in a first direction when pressurized control fluid is supplied to a port of the actuator. A return spring included in the single acting actuator causes the drive shaft to move in a second direction opposite the first direction when the supply of pressurized control fluid to the po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K31/122F16K37/00
CPCF16K37/0041F15B15/065F15B15/2861F15B2211/6336F15B2211/862F15B2211/863F15B2211/87F15B2211/8855F16K31/1635F15B19/005F15B5/006F15B20/002F16K31/084F16K31/42F16K37/0025
Inventor 张铁锋E·舍里尤德H·霍伯特袁勇
Owner EMERSON PROCESS MANAGEMENT VALVE AUTOMATION