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JPS57120624A - Method for controlling flow rate of cooling water - Google Patents

Method for controlling flow rate of cooling water

Info

Publication number
JPS57120624A
JPS57120624A JP671881A JP671881A JPS57120624A JP S57120624 A JPS57120624 A JP S57120624A JP 671881 A JP671881 A JP 671881A JP 671881 A JP671881 A JP 671881A JP S57120624 A JPS57120624 A JP S57120624A
Authority
JP
Japan
Prior art keywords
flow rate
cooling water
calculated
header
valve
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.)
Granted
Application number
JP671881A
Other languages
Japanese (ja)
Other versions
JPS6156294B2 (en
Inventor
Yutaka Takemoto
Takeshi Nunokawa
Norio Iwanami
Akira Takami
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.)
IHI Corp
Nippon Steel Corp
Original Assignee
Ishikawajima Harima Heavy Industries Co Ltd
Sumitomo Metal Industries 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 Ishikawajima Harima Heavy Industries Co Ltd, Sumitomo Metal Industries Ltd filed Critical Ishikawajima Harima Heavy Industries Co Ltd
Priority to JP671881A priority Critical patent/JPS57120624A/en
Publication of JPS57120624A publication Critical patent/JPS57120624A/en
Publication of JPS6156294B2 publication Critical patent/JPS6156294B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D11/00—Process control or regulation for heat treatments

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Control Of Heat Treatment Processes (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)
  • Flow Control (AREA)

Abstract

PURPOSE:To control flow rate of cooling water accurately by comparing the flow rate calculated from the correlation characteristic value of the ejection pressure of a cooling header and the flow rate of cooling water and actually detected value with a set flow rate, and controlling the opening of a flow rate control valve by the differential signal thereof. CONSTITUTION:The correlation characteristic value of the internal pressure P and flow rate Q of a cooling header 1 are beforehand measured actually, and are kept stored in a storage device 5. In an arithmetic circuit 4, the stored characteristics are drawn out, and the flow rate Q1 corresponding to the pressure detected pressure signal P1 from a detected signal converter 3 is calculated. A set flow rate Q0 and the calculated flow rate Q1 are compared, and a differential flow rate DELTAQ is calculated. On the other hand, a flow rate regulating valve 7 is provided in the course of supplying cooling water from a cooling water supply device 6 to the header 1, and the opening of this valve is controlled with a servomotor 8. The servomotor 8 is operated by the flow rate error DELTAQ outputted from the circuit 4, and regulates the opening of the valve 7, thereby controlling the flow rate to be supplied to the header 1.
JP671881A 1981-01-20 1981-01-20 Method for controlling flow rate of cooling water Granted JPS57120624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP671881A JPS57120624A (en) 1981-01-20 1981-01-20 Method for controlling flow rate of cooling water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP671881A JPS57120624A (en) 1981-01-20 1981-01-20 Method for controlling flow rate of cooling water

Publications (2)

Publication Number Publication Date
JPS57120624A true JPS57120624A (en) 1982-07-27
JPS6156294B2 JPS6156294B2 (en) 1986-12-02

Family

ID=11646039

Family Applications (1)

Application Number Title Priority Date Filing Date
JP671881A Granted JPS57120624A (en) 1981-01-20 1981-01-20 Method for controlling flow rate of cooling water

Country Status (1)

Country Link
JP (1) JPS57120624A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60174494U (en) * 1984-04-24 1985-11-19 財団法人生産開発科学研究所 motor actuator
JP2007315364A (en) * 2006-05-29 2007-12-06 Mitsui Eng & Shipbuild Co Ltd Dust deposition preventing device for furnace top pressure recovery turbine blade part
JP2021171824A (en) * 2020-04-24 2021-11-01 コックス・テヒニク・ゲーエムベーハー・ウント・コ・カーゲー Apparatus for cooling long product and method for cooling long product using the apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60174494U (en) * 1984-04-24 1985-11-19 財団法人生産開発科学研究所 motor actuator
JP2007315364A (en) * 2006-05-29 2007-12-06 Mitsui Eng & Shipbuild Co Ltd Dust deposition preventing device for furnace top pressure recovery turbine blade part
JP2021171824A (en) * 2020-04-24 2021-11-01 コックス・テヒニク・ゲーエムベーハー・ウント・コ・カーゲー Apparatus for cooling long product and method for cooling long product using the apparatus

Also Published As

Publication number Publication date
JPS6156294B2 (en) 1986-12-02

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