JPS57166613A - Plant flow rate controller - Google Patents

Plant flow rate controller

Info

Publication number
JPS57166613A
JPS57166613A JP5154281A JP5154281A JPS57166613A JP S57166613 A JPS57166613 A JP S57166613A JP 5154281 A JP5154281 A JP 5154281A JP 5154281 A JP5154281 A JP 5154281A JP S57166613 A JPS57166613 A JP S57166613A
Authority
JP
Japan
Prior art keywords
opening
flow rate
signal
valve
controller
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP5154281A
Other languages
Japanese (ja)
Inventor
Tomozo Sasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP5154281A priority Critical patent/JPS57166613A/en
Publication of JPS57166613A publication Critical patent/JPS57166613A/en
Pending legal-status Critical Current

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
    • G05B5/00—Anti-hunting arrangements
    • G05B5/01—Anti-hunting arrangements electric

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Flow Control (AREA)

Abstract

PURPOSE:To prevent a load and disturbance from being generated, by setting an opening of a by-pass valve variably, and also inhibiting an operation of a digital regulating valve controller, when it is required to change a flow rate level remarkably. CONSTITUTION:When an operation of a plant is changed, its mode is changed, or a load request signal S1 is inputted to a flow rate level variable setting device 8 due to sudden change of a load, a control operation inhibiting signal S2 is sent to a digital regulating valve controller 5 from the setting device 8. Therefore, the controller 5 is inhibited as to its regulating valve controlling operation, and is fixed and held to the control state of that time point. Accordingly, a flow rate regulator 3 is also held to the first state as to its opening. On the other hand, a by-pass valve opening changing signal S3 is sent out from the setting device 8, and is applied to a by-pass valve 6. Therefore, the valve 6 increases its opening by a variation rate in accordance with the signal S3. Subsequently, when the opening of the valve 6 reaches a target value, the signal S2 is cut off. Accordingly, the controller 5 starts its controlling operation once again.
JP5154281A 1981-04-06 1981-04-06 Plant flow rate controller Pending JPS57166613A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5154281A JPS57166613A (en) 1981-04-06 1981-04-06 Plant flow rate controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5154281A JPS57166613A (en) 1981-04-06 1981-04-06 Plant flow rate controller

Publications (1)

Publication Number Publication Date
JPS57166613A true JPS57166613A (en) 1982-10-14

Family

ID=12889906

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5154281A Pending JPS57166613A (en) 1981-04-06 1981-04-06 Plant flow rate controller

Country Status (1)

Country Link
JP (1) JPS57166613A (en)

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