JPS5759006A - Water level controller - Google Patents
Water level controllerInfo
- Publication number
- JPS5759006A JPS5759006A JP13552280A JP13552280A JPS5759006A JP S5759006 A JPS5759006 A JP S5759006A JP 13552280 A JP13552280 A JP 13552280A JP 13552280 A JP13552280 A JP 13552280A JP S5759006 A JPS5759006 A JP S5759006A
- Authority
- JP
- Japan
- Prior art keywords
- water level
- drain tank
- controlling valve
- operated
- rate
- 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 maintain always stably water level in a drain tank of a moisture separator for a turbine in an atomic power plant or the like by changing over operation from normal to emergency running mode system in response to the rate of water level variation in the drain tank and altering control constant for a controlling valve.
CONSTITUTION: A controlling valve 22 is controlled by a control calculation program setter 14 for controlling water level in a tank to a predetermined value.A mode switch 13 is operated on the basis of a judging circuit 12 for judging that the output of a rate-of-variation calculating circuit 11 exceeds the set range, so as to change over operation from normal operation mode system 15 to emergency one 16. Further, the controlling valve 22 is operated by altering target set value SV and PID constant. Thus, the water level in the drain tank can be always stably maintained.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13552280A JPS5759006A (en) | 1980-09-29 | 1980-09-29 | Water level controller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13552280A JPS5759006A (en) | 1980-09-29 | 1980-09-29 | Water level controller |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5759006A true JPS5759006A (en) | 1982-04-09 |
Family
ID=15153728
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13552280A Pending JPS5759006A (en) | 1980-09-29 | 1980-09-29 | Water level controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5759006A (en) |
-
1980
- 1980-09-29 JP JP13552280A patent/JPS5759006A/en active Pending
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