JPS5465801A - Operation of drain pump - Google Patents
Operation of drain pumpInfo
- Publication number
- JPS5465801A JPS5465801A JP13156277A JP13156277A JPS5465801A JP S5465801 A JPS5465801 A JP S5465801A JP 13156277 A JP13156277 A JP 13156277A JP 13156277 A JP13156277 A JP 13156277A JP S5465801 A JPS5465801 A JP S5465801A
- Authority
- JP
- Japan
- Prior art keywords
- drain pump
- rotational frequency
- control mechanism
- prime mover
- maintenance operation
- 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
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
PURPOSE: To manage with a small quantity of drainage for maintenance operation and heighten the reliability of drain pump, by providing between a prime mover and the drain pump a rotational frequency control mechanism which is shifted in at least two stages and by performing the maintenance operation at a second rota frequency.
CONSTITUTION: The drain pump 1 is located under water in a suction tank 2 and communicates with a discharge tank 5 through a discharge valve 3 and a check valve 4. A speed reducer 6 is connected to the prime mover 8 such as a Diesel engine or gasoline engine through the rotational frequency control mechanism 7 such as a variable speed fluid joint to drive the drain pump 1. The rotational frequency control mechanism 7 is shifted in at east two stages, namely, to a first rotational frequency for the effective work of the drain pump 1 or to the second rotational frequency, which is lower than the first rotational frequency and is so set that the discharge quantity is zero and the load on the prime mover is not less than the minimum degree. The maintenance operation of the drain pump 1 is performed at the second rotational frequency.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52131562A JPS608352B2 (en) | 1977-11-04 | 1977-11-04 | How to operate a drainage pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52131562A JPS608352B2 (en) | 1977-11-04 | 1977-11-04 | How to operate a drainage pump |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5465801A true JPS5465801A (en) | 1979-05-26 |
JPS608352B2 JPS608352B2 (en) | 1985-03-02 |
Family
ID=15060956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52131562A Expired JPS608352B2 (en) | 1977-11-04 | 1977-11-04 | How to operate a drainage pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS608352B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60142076A (en) * | 1983-12-28 | 1985-07-27 | Ebara Corp | Operating method of pump |
JPS63306295A (en) * | 1987-06-09 | 1988-12-14 | Ebara Corp | Pump and its operating method |
-
1977
- 1977-11-04 JP JP52131562A patent/JPS608352B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60142076A (en) * | 1983-12-28 | 1985-07-27 | Ebara Corp | Operating method of pump |
JPS63306295A (en) * | 1987-06-09 | 1988-12-14 | Ebara Corp | Pump and its operating method |
Also Published As
Publication number | Publication date |
---|---|
JPS608352B2 (en) | 1985-03-02 |
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