Locally actuated partial stroke test system

A partial stroke test, emergency technology, applied in fluid pressure actuation system components, fluid pressure actuation system testing, mechanical valve testing, etc., can solve problems such as multi-installation space, air quality sensitivity, air consumption, etc.

Active Publication Date: 2021-06-11
SAUDI ARABIAN OIL CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, some computer-based PST systems may be sensitive to air quality, and in-line replacement may not be an option due to the requirement of full travel for accurate positioner calibration
In addition, some systems may have continuous air consumption and power consumption during operation, and may also have additional height requirements for the valves, thus requiring more installation space

Method used

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  • Locally actuated partial stroke test system
  • Locally actuated partial stroke test system
  • Locally actuated partial stroke test system

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Embodiment Construction

[0016] The present disclosure describes various embodiments related to a locally actuated partial stroke test system for testing the operation of a slam shut valve. Other embodiments may be described and disclosed.

[0017] In the following description, numerous details are set forth in order to provide a thorough understanding of various embodiments. In other instances, well-known procedures, devices, and systems may not have been described in specific detail so as not to unnecessarily obscure the various embodiments. In addition, descriptions of various embodiments may omit certain features or details in order not to obscure the various embodiments.

[0018] In the following detailed description, reference is made to the accompanying drawings which form a part hereof. Like numbers may indicate like parts throughout the drawings. The drawings may provide an illustration of some of the various embodiments in which the inventive subject matter may be practiced. Other embodi...

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Abstract

Embodiments of the present invention describe mechanically and electrically operated, locally actuated partial stroke test devices and systems for testing the operation of emergency isolation valves.

Description

technical field [0001] The present invention relates to a locally actuated partial stroke test system for testing the operation of emergency isolation valves. Background technique [0002] Partial Stroke Testing (PST) is a method used in process control systems that allows testing of a selected percentage of the possible failure modes of an Emergency Isolation Valve (EIV) without completely physically closing the Emergency Isolation Valve (EIV). Typically, the PST is performed via a computer control system that communicates with the EIV to partially close and then open the valve. The purpose of the PST is to determine whether the EIV is functioning properly to ensure the safe operation of the industrial process in the event of an emergency requiring shutdown of the EIV. PSTs are common in the oil, gas, petrochemical, and power industries, as well as in many computer-based control systems that feature PSTs. [0003] Typically, computer-based PST systems are remotely operate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B19/00F15B21/00F16K37/00G05B9/02
CPCG01M13/003F15B19/00F15B21/006F15B2013/0409F15B2211/41527F15B2211/8855F16K37/0083
Inventor 法瓦兹·A·阿尔沙汗
Owner SAUDI ARABIAN OIL CO
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