JPS5451006A - Automatic well-pump - Google Patents
Automatic well-pumpInfo
- Publication number
- JPS5451006A JPS5451006A JP11676077A JP11676077A JPS5451006A JP S5451006 A JPS5451006 A JP S5451006A JP 11676077 A JP11676077 A JP 11676077A JP 11676077 A JP11676077 A JP 11676077A JP S5451006 A JPS5451006 A JP S5451006A
- Authority
- JP
- Japan
- Prior art keywords
- flow rate
- pressure
- pump
- opened
- motor
- 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 Non-Positive-Displacement Pumps (AREA)
Abstract
PURPOSE: To perform the start and stop of a pump by bringing the pressure in a pressure tank to a high pressure permitting stable water supply, by using a flow switch in a case of the flow rate above a critical flow rate, and by using a pressure switch in a case of the flow rate below a critical flow rate.
CONSTITUTION: When the discharged-water flow rate is above a critical flow rate, a contact a is closed, and a contact b is opened. Thus, a motor-driven pump 2 is operated to feed water. When a hydrant is closed, and the use of water is cut off, a flow switch 10 detects zero in flow rate, and the contact a is opened, and the contact b is closed to stop the motor-driven pump 2. Then, the hydrant is opened to lower the water level, and when the water level reaches a lower limit value, a pressure switch 3 turns-ON, and the motor-driven pump 2 and a timer 7 are excited, and the motor-driven pump 2 is started. When the pressure in a pressure tank 1 increased and the setting time of a timer 7 elaspsed, the electrical circuit of a relay 8 is opened, and the operation of the pump 2 stops
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11676077A JPS5451006A (en) | 1977-09-30 | 1977-09-30 | Automatic well-pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11676077A JPS5451006A (en) | 1977-09-30 | 1977-09-30 | Automatic well-pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5451006A true JPS5451006A (en) | 1979-04-21 |
Family
ID=14695050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11676077A Pending JPS5451006A (en) | 1977-09-30 | 1977-09-30 | Automatic well-pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5451006A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60192896A (en) * | 1984-03-13 | 1985-10-01 | Shibaura Eng Works Co Ltd | Control unit for pump |
JPH0263082U (en) * | 1988-10-31 | 1990-05-11 |
-
1977
- 1977-09-30 JP JP11676077A patent/JPS5451006A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60192896A (en) * | 1984-03-13 | 1985-10-01 | Shibaura Eng Works Co Ltd | Control unit for pump |
JPH0263082U (en) * | 1988-10-31 | 1990-05-11 |
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