JPS5746086A - Operation of sewage pump - Google Patents
Operation of sewage pumpInfo
- Publication number
- JPS5746086A JPS5746086A JP12115080A JP12115080A JPS5746086A JP S5746086 A JPS5746086 A JP S5746086A JP 12115080 A JP12115080 A JP 12115080A JP 12115080 A JP12115080 A JP 12115080A JP S5746086 A JPS5746086 A JP S5746086A
- Authority
- JP
- Japan
- Prior art keywords
- pump
- valve
- pumps
- foreign matters
- stationary vanes
- 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.)
- Granted
Links
Abstract
PURPOSE: To improve in the reliability of sewage pumps in a parallel arrangement by making a discharge flow from a pump on driving counterflow to a pump on resting so as to flush and remove foreign matters stuck to an impeller and stationary vanes of the pump on resting.
CONSTITUTION: During operation of pumps 10, 11, the shaft power of these pumps 10, 11 is observed, and counterflow operation is carried out to the pumps 10, 11 when the shaft power is increased above an allowable value due to foreign matters stuck to an imprller and stationary vanes. In this case, for example, a valve 16 for the pump 10 is closed, a motor 12 is stopped, a discharge valve 15 is closed, the open degree of the valve 17 for the pump 11 is made small and an intake valve 14 is closed. In this state, the pump 11 is operated in a cut-off condition, and the pump 11 comes to a stop. Therefore, when the valve 16 for the pump 10 is suitably opened, counterflow is established through the pump 10 so as to flush and remove foreign matters stuck to the impeller and stationary vanes. Then a similar manner can be made to another pump 10 so that the discharged flow from the pump 10 is fed to the discharge port of the pump 11 in a counterflowing manner for flushing and removing foreign matters stuck to the impeller and the stationary vanes.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12115080A JPS5746086A (en) | 1980-09-03 | 1980-09-03 | Operation of sewage pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12115080A JPS5746086A (en) | 1980-09-03 | 1980-09-03 | Operation of sewage pump |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5746086A true JPS5746086A (en) | 1982-03-16 |
JPS6359037B2 JPS6359037B2 (en) | 1988-11-17 |
Family
ID=14804081
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12115080A Granted JPS5746086A (en) | 1980-09-03 | 1980-09-03 | Operation of sewage pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5746086A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0639716A1 (en) * | 1993-04-27 | 1995-02-22 | Itt Flygt Ab | Device for sewage pumping stations |
-
1980
- 1980-09-03 JP JP12115080A patent/JPS5746086A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0639716A1 (en) * | 1993-04-27 | 1995-02-22 | Itt Flygt Ab | Device for sewage pumping stations |
Also Published As
Publication number | Publication date |
---|---|
JPS6359037B2 (en) | 1988-11-17 |
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