JPS5756693A - Flow rate control method for pump - Google Patents
Flow rate control method for pumpInfo
- Publication number
- JPS5756693A JPS5756693A JP12848780A JP12848780A JPS5756693A JP S5756693 A JPS5756693 A JP S5756693A JP 12848780 A JP12848780 A JP 12848780A JP 12848780 A JP12848780 A JP 12848780A JP S5756693 A JPS5756693 A JP S5756693A
- Authority
- JP
- Japan
- Prior art keywords
- pump
- flow rate
- discharge
- water level
- well
- 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
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
- Flow Control (AREA)
Abstract
PURPOSE: To make it possible to control a discharge flow rate place where a flow meter can not be easily installed by controlling the speed of a pump so that the pump characteristics stored in an arithmetic control unit and the pump characteristics computed from a line resistance curve as well as actual pump head may reach a target flow rate.
CONSTITUTION: The signals detected from a water level detector 3 for a suction well 2 a water level detector 5 for a discharge well 4, a pressure detector 6 for a pump 1, and a rotary speed detector 8 are transferred to an arithmetic control unit 7. The discharge flow rate of the pump is computed from the pump characteristics and the line resistance curve stored in the arithmetic control unit 7 and the suction well water level, the discharge well water level, the pump discharge pressure and the pump rpm entered. The number of revolution of the pump is controlled so that the discharge flow rate of the pump may attain a target flow rate. This construction makes it possible to control the discharge flow rate of the pump without a flow meter, performing a stabilized flow control even when a flow meter can not be installed.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12848780A JPS5756693A (en) | 1980-09-18 | 1980-09-18 | Flow rate control method for pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12848780A JPS5756693A (en) | 1980-09-18 | 1980-09-18 | Flow rate control method for pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5756693A true JPS5756693A (en) | 1982-04-05 |
Family
ID=14985958
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12848780A Pending JPS5756693A (en) | 1980-09-18 | 1980-09-18 | Flow rate control method for pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5756693A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5911416A (en) * | 1982-07-13 | 1984-01-21 | Toyo Electric Mfg Co Ltd | Water supply pressure reducing valve device |
JPS5992907U (en) * | 1982-12-11 | 1984-06-23 | 三相電機株式会社 | Constant pressure pump device |
JPH062218U (en) * | 1992-06-10 | 1994-01-14 | 株式会社サンコウ電子研究所 | Pinhole detector |
US5509788A (en) * | 1993-09-27 | 1996-04-23 | Diversey Corporation | Flow-metered pumping with load compensation system and method |
-
1980
- 1980-09-18 JP JP12848780A patent/JPS5756693A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5911416A (en) * | 1982-07-13 | 1984-01-21 | Toyo Electric Mfg Co Ltd | Water supply pressure reducing valve device |
JPS5992907U (en) * | 1982-12-11 | 1984-06-23 | 三相電機株式会社 | Constant pressure pump device |
JPH062218U (en) * | 1992-06-10 | 1994-01-14 | 株式会社サンコウ電子研究所 | Pinhole detector |
US5509788A (en) * | 1993-09-27 | 1996-04-23 | Diversey Corporation | Flow-metered pumping with load compensation system and method |
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