JPS6488009A - Feedwater flow control valve controller - Google Patents

Feedwater flow control valve controller

Info

Publication number
JPS6488009A
JPS6488009A JP62240801A JP24080187A JPS6488009A JP S6488009 A JPS6488009 A JP S6488009A JP 62240801 A JP62240801 A JP 62240801A JP 24080187 A JP24080187 A JP 24080187A JP S6488009 A JPS6488009 A JP S6488009A
Authority
JP
Japan
Prior art keywords
fcv
water
supply
rate
rfp
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
JP62240801A
Other languages
Japanese (ja)
Inventor
Hiroyuki Tonai
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
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 filed Critical Toshiba Corp
Priority to JP62240801A priority Critical patent/JPS6488009A/en
Publication of JPS6488009A publication Critical patent/JPS6488009A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin

Landscapes

  • Flow Control (AREA)

Abstract

PURPOSE: To improve the controllability of water-supply control by adding a correction function generator(F/G) to a controlling part of an electric motor drive reactor water-supply pump (M-RFP) so that a water-supply command signal to the M-RFP constantly coincides with an electric motor drive reactor water-supply flow-rate. CONSTITUTION: For switching small and large valves (L-FCV, FCV) 11 and 10 of a water- supply flow-rate adjustment valve, an L-FCV control mode is changed from AUTO to MAN UAL. By gradually decreasing the output signal of equipment 7 for setting an L-FCV value travel, the L-FCV operates in a closing direction. At this time, an F/G (A) 8 outputs a water- supply command signal for compensating for a decreasing M-RFP water-supply flow rate to an FCV F/G 5 by closing the L-FCV 10. When the FCV 10 is at a value shown immediately before starting to open and a signal is inputted from the F/G (A) 8 before switching the L-FCV and FCV, the FCV F/G 5 outputs an open signal to the FCV 10 without any time delay for opening the FCV 10, closes the L-FDV 11, and compensates for the decreased M-RFP water-supply flow-rate. Since the L-FCV and FDV can be switched without any fluctuation of the water-supply flow-rate and a reactor water-level does not fluctuate, a water-supply command signal from a main control part 1 becomes constant and no difference between the water-supply command signal and the M-RFP water-supply flow-rate occurs even after switching.
JP62240801A 1987-09-28 1987-09-28 Feedwater flow control valve controller Pending JPS6488009A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62240801A JPS6488009A (en) 1987-09-28 1987-09-28 Feedwater flow control valve controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62240801A JPS6488009A (en) 1987-09-28 1987-09-28 Feedwater flow control valve controller

Publications (1)

Publication Number Publication Date
JPS6488009A true JPS6488009A (en) 1989-04-03

Family

ID=17064888

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62240801A Pending JPS6488009A (en) 1987-09-28 1987-09-28 Feedwater flow control valve controller

Country Status (1)

Country Link
JP (1) JPS6488009A (en)

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