JPS6469703A - Control of start of steam turbine - Google Patents
Control of start of steam turbineInfo
- Publication number
- JPS6469703A JPS6469703A JP22393987A JP22393987A JPS6469703A JP S6469703 A JPS6469703 A JP S6469703A JP 22393987 A JP22393987 A JP 22393987A JP 22393987 A JP22393987 A JP 22393987A JP S6469703 A JPS6469703 A JP S6469703A
- Authority
- JP
- Japan
- Prior art keywords
- water quantity
- turbine
- calculator
- peak value
- revolution
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 9
- 230000003628 erosive effect Effects 0.000 abstract 2
Landscapes
- Control Of Turbines (AREA)
Abstract
PURPOSE:To reduce erosion by calculating the water quantity inside a turbine stage part on starting a turbine which generates large water droplets and controlling the number of revolution of the turbine at most to the value where erosion is not generated, on the basis of the water quantity. CONSTITUTION:The steam temperature inside a turbine stage part and the wall surface temperature are detected and the temperature difference between the both temperatures is calculated by a calculator 13. The water quantity (drain quantity) per hour is calculated by a water quantity calculator 15 from the output signal which represents the temperature difference and the output signal of an inflow steam quantity calculator 14. Then, a judging device 16 judges if the obtained water quantity is put into reduction tendency, passing through a peak value or not, and then a judging device 17 judges if the water quantity becomes 1/3 of the peak value or not. If the water quantity on start is over 1/3 of the peak value. the number of revolution is kept, and when the water quantity becomes 1/3 or less, a revolution speed adjustor 18 executes the speed increasing control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22393987A JPS6469703A (en) | 1987-09-09 | 1987-09-09 | Control of start of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22393987A JPS6469703A (en) | 1987-09-09 | 1987-09-09 | Control of start of steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6469703A true JPS6469703A (en) | 1989-03-15 |
Family
ID=16806069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22393987A Pending JPS6469703A (en) | 1987-09-09 | 1987-09-09 | Control of start of steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6469703A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5253127A (en) * | 1990-07-18 | 1993-10-12 | Hitachi, Ltd. | Video tape recorder having a special demagnetizing function |
| JP2013139767A (en) * | 2012-01-03 | 2013-07-18 | General Electric Co <Ge> | Working fluid sensor system for power generation system |
-
1987
- 1987-09-09 JP JP22393987A patent/JPS6469703A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5253127A (en) * | 1990-07-18 | 1993-10-12 | Hitachi, Ltd. | Video tape recorder having a special demagnetizing function |
| JP2013139767A (en) * | 2012-01-03 | 2013-07-18 | General Electric Co <Ge> | Working fluid sensor system for power generation system |
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