JPS6445983A - Control device for pump - Google Patents
Control device for pumpInfo
- Publication number
- JPS6445983A JPS6445983A JP20123387A JP20123387A JPS6445983A JP S6445983 A JPS6445983 A JP S6445983A JP 20123387 A JP20123387 A JP 20123387A JP 20123387 A JP20123387 A JP 20123387A JP S6445983 A JPS6445983 A JP S6445983A
- Authority
- JP
- Japan
- Prior art keywords
- pump
- supply
- predetermined value
- pipe line
- supply pipe
- 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)
- Control Of Fluid Pressure (AREA)
Abstract
PURPOSE:To promote the reduction of power consumption by connecting a supply fluid tank to a supply pipe line and stopping the operation of a pump, when a flow amount of supply fluid in the supply pipe line decreases to a predetermined value or less, while restarting the pump when a pressure of the supply fluid decreases to a predetermined value or less. CONSTITUTION:In the case of a pump device pumping water in a supply valve 11 to be supplied to a demand part through a supply pipe line 14 by driving a variable speed pump 1 with an induction motor 2, a supply fluid tank 10 is connected to the downstream side of a check valve 3 with no-water feed detector in the supply pipe line 14. Inputting a predetermined value of flow amount of supply water, for instance, an output signal by the action of a contact 3a in the check valve 3, acting when the pump is in minimum flow amount, to a speed controller 7, the pump 1 is stopped. While in this stopping, when a tank pressure decreases to a predetermined value or less by supplying water from the supply fluid tank 10, the speed controller 7 inputs an output signal from a lower limit pressure detector 4a connected to a pressure detector 4, controlling the pump 1 so as to be started.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20123387A JPS6445983A (en) | 1987-08-12 | 1987-08-12 | Control device for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20123387A JPS6445983A (en) | 1987-08-12 | 1987-08-12 | Control device for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6445983A true JPS6445983A (en) | 1989-02-20 |
Family
ID=16437541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20123387A Pending JPS6445983A (en) | 1987-08-12 | 1987-08-12 | Control device for pump |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6445983A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998050700A1 (en) * | 1997-05-01 | 1998-11-12 | Ebara Corporation | Water feeder |
| JP2002070751A (en) * | 2000-08-29 | 2002-03-08 | Kawamoto Pump Mfg Co Ltd | Pumping unit |
| JP2009034077A (en) * | 2007-08-03 | 2009-02-19 | Daifuku Shokuhin Kogyo:Kk | Frozen food and its production method |
-
1987
- 1987-08-12 JP JP20123387A patent/JPS6445983A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998050700A1 (en) * | 1997-05-01 | 1998-11-12 | Ebara Corporation | Water feeder |
| JP2002070751A (en) * | 2000-08-29 | 2002-03-08 | Kawamoto Pump Mfg Co Ltd | Pumping unit |
| JP2009034077A (en) * | 2007-08-03 | 2009-02-19 | Daifuku Shokuhin Kogyo:Kk | Frozen food and its production method |
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