JPS57188789A - Speed-matching control for pumps - Google Patents

Speed-matching control for pumps

Info

Publication number
JPS57188789A
JPS57188789A JP7227481A JP7227481A JPS57188789A JP S57188789 A JPS57188789 A JP S57188789A JP 7227481 A JP7227481 A JP 7227481A JP 7227481 A JP7227481 A JP 7227481A JP S57188789 A JPS57188789 A JP S57188789A
Authority
JP
Japan
Prior art keywords
speed
control unit
pumps
necessary
flow
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
JP7227481A
Other languages
Japanese (ja)
Inventor
Kiichiro Ito
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 JP7227481A priority Critical patent/JPS57188789A/en
Publication of JPS57188789A publication Critical patent/JPS57188789A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • F04D15/02—Stopping of pumps, or operating valves, on occurrence of unwanted conditions
    • F04D15/029—Stopping of pumps, or operating valves, on occurrence of unwanted conditions for pumps operating in parallel

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

PURPOSE:To improve the efficiency of a whole system for the automatic speed- matching control of a plurality of pumps by controlling them on the basis of the computation of the necessary operating number and the necessary operating speed by an arithmetic unit. CONSTITUTION:When the increase of the operating number of water pumps 1 is necessary by the increase of the target flow from a target flow setting unit 7, an arithmetic unit 8 receives the signal of the increase of the water pump operating number from a flow control unit 6. Then, a necessary operating number and a necessary operating speed are calculated on the basis of actual heads and flow-speed characteristics of water pumps at that time, and the result of the calculation is outputted to the flow control unit 6. Thereby, the flow control unit 6 outputs a command of water pump speed to a speed control unit 4, and operating and intermitting commands of water pumps 1 and discharge valves 2 to a start-control unit 5.
JP7227481A 1981-05-15 1981-05-15 Speed-matching control for pumps Pending JPS57188789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7227481A JPS57188789A (en) 1981-05-15 1981-05-15 Speed-matching control for pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7227481A JPS57188789A (en) 1981-05-15 1981-05-15 Speed-matching control for pumps

Publications (1)

Publication Number Publication Date
JPS57188789A true JPS57188789A (en) 1982-11-19

Family

ID=13484535

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7227481A Pending JPS57188789A (en) 1981-05-15 1981-05-15 Speed-matching control for pumps

Country Status (1)

Country Link
JP (1) JPS57188789A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0669985U (en) * 1993-03-15 1994-09-30 フェンス工業株式会社 Luminous indicator
JP2013092095A (en) * 2011-10-25 2013-05-16 Hitachi Industrial Equipment Systems Co Ltd Water supply device and operation method of water supply device
CN107448405A (en) * 2016-05-31 2017-12-08 北京凯德中天科技发展有限公司 Centrifugal compressor variable speed energy conservation control method based on universal flow speed mathematical modeling
CN107448397A (en) * 2016-05-31 2017-12-08 北京凯德中天科技发展有限公司 Water pump variable speed energy conservation control method based on universal flow-speed mathematical modeling

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0669985U (en) * 1993-03-15 1994-09-30 フェンス工業株式会社 Luminous indicator
JP2013092095A (en) * 2011-10-25 2013-05-16 Hitachi Industrial Equipment Systems Co Ltd Water supply device and operation method of water supply device
CN107448405A (en) * 2016-05-31 2017-12-08 北京凯德中天科技发展有限公司 Centrifugal compressor variable speed energy conservation control method based on universal flow speed mathematical modeling
CN107448397A (en) * 2016-05-31 2017-12-08 北京凯德中天科技发展有限公司 Water pump variable speed energy conservation control method based on universal flow-speed mathematical modeling

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