JPS57188789A - Speed-matching control for pumps - Google Patents
Speed-matching control for pumpsInfo
- 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
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 Positive-Displacement Pumps (AREA)
- Control Of Non-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.
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)
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 |
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 |
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 |
-
1981
- 1981-05-15 JP JP7227481A patent/JPS57188789A/en active Pending
Cited By (4)
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 |
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 |
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 |
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