PH12019502768A1 - Abnormal opening degree detection device and abnormal opening degree detection method for control valve - Google Patents

Abnormal opening degree detection device and abnormal opening degree detection method for control valve

Info

Publication number
PH12019502768A1
PH12019502768A1 PH12019502768A PH12019502768A PH12019502768A1 PH 12019502768 A1 PH12019502768 A1 PH 12019502768A1 PH 12019502768 A PH12019502768 A PH 12019502768A PH 12019502768 A PH12019502768 A PH 12019502768A PH 12019502768 A1 PH12019502768 A1 PH 12019502768A1
Authority
PH
Philippines
Prior art keywords
control valve
opening degree
theoretical
abnormal opening
abnormal
Prior art date
Application number
PH12019502768A
Inventor
Shigeru Nozaki
Original Assignee
Sumitomo Metal Mining Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sumitomo Metal Mining Co filed Critical Sumitomo Metal Mining Co
Publication of PH12019502768A1 publication Critical patent/PH12019502768A1/en

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/06—Control of flow characterised by the use of electric means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Fluid Mechanics (AREA)
  • Testing And Monitoring For Control Systems (AREA)
  • Flow Control (AREA)
  • Control Of Fluid Pressure (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)

Abstract

The present invention enables highly-accurate detection of an abnormal degree of opening of a control valve, such as a flow control valve or a pressure control valve, without the need to install or construct new instrumentation equipment. The present invention is a method for detecting an abnormal opening degree of a flow control valve on a liquid process line, wherein data is created in advance for a theoretical approximation formula derived from a command opening degree for the control valve and a flow rate of liquid relative to that command opening degree, and a theoretical flow rate value at a predetermined command opening degree found from the theoretical approximation formula is compared to an actually-measured value of the flow rate of the liquid, thereby detecting an abnormal opening degree of the control valve. Also, the present invention is a method for detecting an abnormal opening degree of a pressure control valve on a gas process line, wherein data is created in advance for a theoretical approximation formula derived from an average value of command values for an operating load in one pressure change cycle of a reaction container to which the control valve is connected as well as from a pressure change cycle duration, and a theoretical cycle duration at a command value for a predetermined operating load found from the theoretical approximation formula is compared to an actual cycle duration, thereby detecting an abnormal opening degree of the control valve.
PH12019502768A 2017-06-12 2019-12-06 Abnormal opening degree detection device and abnormal opening degree detection method for control valve PH12019502768A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017115111A JP6660029B2 (en) 2017-06-12 2017-06-12 Control valve opening abnormality detection device and opening abnormality detection method
PCT/JP2018/018971 WO2018230237A1 (en) 2017-06-12 2018-05-16 Abnormal opening degree detection device and abnormal opening degree detection method for control valve

Publications (1)

Publication Number Publication Date
PH12019502768A1 true PH12019502768A1 (en) 2020-11-09

Family

ID=64659723

Family Applications (1)

Application Number Title Priority Date Filing Date
PH12019502768A PH12019502768A1 (en) 2017-06-12 2019-12-06 Abnormal opening degree detection device and abnormal opening degree detection method for control valve

Country Status (3)

Country Link
JP (1) JP6660029B2 (en)
PH (1) PH12019502768A1 (en)
WO (1) WO2018230237A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113325824B (en) * 2021-06-02 2022-10-25 三门核电有限公司 Regulating valve abnormity identification method and system based on threshold monitoring

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005267572A (en) * 2004-03-22 2005-09-29 Jfe Steel Kk Method and device for determining abnormality in flow control
JP5873681B2 (en) * 2011-10-14 2016-03-01 株式会社堀場エステック Flow control device, diagnostic device used for flow control device, and diagnostic program

Also Published As

Publication number Publication date
JP6660029B2 (en) 2020-03-04
WO2018230237A1 (en) 2018-12-20
JP2019003260A (en) 2019-01-10

Similar Documents

Publication Publication Date Title
MX2018013835A (en) Method of pressure testing.
GB2583275A8 (en) Methods and systems for monitoring drilling fluid rheological characteristics
MX359528B (en) Systems and methods for monitoring a fluid system of a mining machine.
BR112018070573A2 (en) method and apparatus for estimating gas suspension system downhole process variables
CN104075051A (en) Flange having warning function
MX2022005109A (en) Fluid exchange devices and related controls, systems, and methods.
MX2016012250A (en) Electronic expansion valve and methods for calibrating an electronic expansion valve.
MX2017015240A (en) Anchor module, casing plug assembly and method for operating a casing plug assembly in a well pipe.
MX364122B (en) Detection of influxes and losses while drilling from a floating vessel.
PH12019502768A1 (en) Abnormal opening degree detection device and abnormal opening degree detection method for control valve
MY190979A (en) Mechanical downhole pressure maintenance system
EA201792491A1 (en) EQUIPMENT AND METHOD FOR CONTROL OF VENTS IN A HYDRAULIC SYSTEM, ASSOCIATED HYDRAULIC SYSTEM AND COMPUTER SOFTWARE PRODUCT
WO2015171728A3 (en) Method and apparatus for providing over-pressure protection for an underground storage cavern
MX2016007731A (en) Tool for purging fluid from a pipe.
MX2017014256A (en) Failure diagnostic device and failure diagnostic method.
MX2021009019A (en) Monitoring system, monitoring method, and monitoring program for steam-using equipment.
MX2014012719A (en) Rotating mechanical seal arrangement with improved gas separation.
MY188955A (en) Well abandonment system and method
MX2019008624A (en) Methods and apparatus to control the actuation of regulators including a loading chamber.
GB2566383A (en) Apparatus for acoustic monitoring of pipeline connected components
MX2017005970A (en) A method for revamping an ammonia plant.
WO2016126113A3 (en) Method for controlling detection of abnormality of pressure tank filling/exhaust system
GB2549018A (en) Downhole pressure maintenance system using a controller
PH12014501593A1 (en) Method for operating flash vessel
CN204253862U (en) Sealing device for high-pressure container