JPS6477704A - Steam valve malfunction detector - Google Patents
Steam valve malfunction detectorInfo
- Publication number
- JPS6477704A JPS6477704A JP23459287A JP23459287A JPS6477704A JP S6477704 A JPS6477704 A JP S6477704A JP 23459287 A JP23459287 A JP 23459287A JP 23459287 A JP23459287 A JP 23459287A JP S6477704 A JPS6477704 A JP S6477704A
- Authority
- JP
- Japan
- Prior art keywords
- turbine
- arithmetic unit
- main steam
- valve
- theoretical
- 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 Turbines (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
PURPOSE:To enhance safety of operation by computing a theoretical output value from a turbine according to the pressure/temperature of main steam and the lift of a sub-valve, and detecting corrosion on the valve element of the sub-valve according to the comparison between the theoretical and an actual output value. CONSTITUTION:A turbine 6 connected to a generator 7 and a condenser 9 equipped with a cooling system 8 are connected to the downstream side from a boiler 1 so as to form a close loop. In the aforesaid constitution, a pressure/ temperature detector 12 is placed between a strainer 3 and a main steam stop valve 4 in a main steam pipe 2. At the same time, the main steam stop valve 4 is provided with a lift detector 13, and detection signals 20, 21 are respectively input to a turbine theoretical output arithmetic unit 14. Also, a turbine theoretical output signal 18 from said arithmetic unit 14 is input to an output comparison arithmetic unit 15 together with a detection signal 19 from a turbine output detector 16. Then said arithmetic unit 15 compares respective signals 18, 19, with each other and when predetermined conditions are satisfied, an alarm 17 is given.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23459287A JPS6477704A (en) | 1987-09-18 | 1987-09-18 | Steam valve malfunction detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23459287A JPS6477704A (en) | 1987-09-18 | 1987-09-18 | Steam valve malfunction detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6477704A true JPS6477704A (en) | 1989-03-23 |
Family
ID=16973443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23459287A Pending JPS6477704A (en) | 1987-09-18 | 1987-09-18 | Steam valve malfunction detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6477704A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006280535A (en) * | 2005-03-31 | 2006-10-19 | Fujinon Corp | Portable endoscope |
JP2015523529A (en) * | 2012-08-03 | 2015-08-13 | ゼネラル・エレクトリック・カンパニイ | Apparatus for monitoring a valve and method of operating the same |
-
1987
- 1987-09-18 JP JP23459287A patent/JPS6477704A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006280535A (en) * | 2005-03-31 | 2006-10-19 | Fujinon Corp | Portable endoscope |
JP2015523529A (en) * | 2012-08-03 | 2015-08-13 | ゼネラル・エレクトリック・カンパニイ | Apparatus for monitoring a valve and method of operating the same |
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