JPS54101079A - Water service pump controller - Google Patents
Water service pump controllerInfo
- Publication number
- JPS54101079A JPS54101079A JP793978A JP793978A JPS54101079A JP S54101079 A JPS54101079 A JP S54101079A JP 793978 A JP793978 A JP 793978A JP 793978 A JP793978 A JP 793978A JP S54101079 A JPS54101079 A JP S54101079A
- Authority
- JP
- Japan
- Prior art keywords
- discharge pressure
- duct loss
- coefficient
- water service
- flow rate
- 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
Abstract
PURPOSE: To correspond even to the change of duct loss, by obtaining the coefficient of duct loss from the discharge pressure and discharge flow rate of a water service pump.
CONSTITUTION: A computing element 20 obtains the coefficient K of duct loss from discharge pressure H from a discharge pressure gauge 14, flow rate Q from a flow meter 15 and actual head Ho and end pressure He from a set instrument 17, and a computing element 16 gains duct loss f(Q) from the coefficient K of duct loss and the flow rate Q. An adder 18 obtains discharge pressure, which makes end pressure constant, from duct loss F(Q) and commands Ho, He at the set instrument 17, and a controller 19 adjusts a control valve 13 by deviation between the output of the adder 18 and discharge pressure H.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP793978A JPS54101079A (en) | 1978-01-26 | 1978-01-26 | Water service pump controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP793978A JPS54101079A (en) | 1978-01-26 | 1978-01-26 | Water service pump controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54101079A true JPS54101079A (en) | 1979-08-09 |
Family
ID=11679471
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP793978A Pending JPS54101079A (en) | 1978-01-26 | 1978-01-26 | Water service pump controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54101079A (en) |
-
1978
- 1978-01-26 JP JP793978A patent/JPS54101079A/en active Pending
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