JPS56167888A - Controller for water feed pump - Google Patents
Controller for water feed pumpInfo
- Publication number
- JPS56167888A JPS56167888A JP6962480A JP6962480A JPS56167888A JP S56167888 A JPS56167888 A JP S56167888A JP 6962480 A JP6962480 A JP 6962480A JP 6962480 A JP6962480 A JP 6962480A JP S56167888 A JPS56167888 A JP S56167888A
- Authority
- JP
- Japan
- Prior art keywords
- water feed
- feed rate
- pump
- behind
- pressure difference
- 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
Abstract
PURPOSE: To minimize a power loss by a method wherein when a water feed rate command exceeds a pump limit, the pump speed is controlled to be higher than required for ensuring a predetermined pressure difference between the before and behind of a regulator valve.
CONSTITUTION: When the value of a water feed rate command signal 8 exceeds that of a pump limit signal 9, the valve of a signal 11 representing the pressure difference between the before and behind of the regulator valve is added with the value of the water feed rate command signal 8, thereby obtaining a pump speed control signal 12. By this pump speed control signal 12, the pump speed is controlled to be higher than required for ensuring the pressure difference between the before and behind of the regulator valve at the predetermined level, so that excessive flow of water by the pump can be prevented and the water feed rate corresponding to the water feed rate command can be ensured. In this construction, since there is no need to maintain the pressure difference between the before and behind of the regulator valve constantly for preparation of an abrupt increase of the water feed rate, the power loss can be much decreased.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6962480A JPS56167888A (en) | 1980-05-27 | 1980-05-27 | Controller for water feed pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6962480A JPS56167888A (en) | 1980-05-27 | 1980-05-27 | Controller for water feed pump |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56167888A true JPS56167888A (en) | 1981-12-23 |
Family
ID=13408201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6962480A Pending JPS56167888A (en) | 1980-05-27 | 1980-05-27 | Controller for water feed pump |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56167888A (en) |
-
1980
- 1980-05-27 JP JP6962480A patent/JPS56167888A/en active Pending
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