JPS5612004A - Bypass line valve controlling for turbine - Google Patents
Bypass line valve controlling for turbineInfo
- Publication number
- JPS5612004A JPS5612004A JP8577179A JP8577179A JPS5612004A JP S5612004 A JPS5612004 A JP S5612004A JP 8577179 A JP8577179 A JP 8577179A JP 8577179 A JP8577179 A JP 8577179A JP S5612004 A JPS5612004 A JP S5612004A
- Authority
- JP
- Japan
- Prior art keywords
- turbine
- steam
- memory
- tripping
- bypass line
- 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)
Abstract
PURPOSE: To provide the minimum steam flow rate required for the continuous operation of a boiler during turbine tripping by installing a bypass valve in a bypass line and a steam flow detector or a flow switch in a steam supply line.
CONSTITUTION: A bypass line 20 is provided with a bypass valve 26 and a control unit 28 is furnished with a steam flow detector 32, a memory 34, a function generator 36, and an actuating pressure setting device 38. During normal operations of a turbine 39, the steam flow detector 32 detects fluctuations in steam supply volume and the detected fluctuations are stored by the memory 34. When a turbine trip is produced, a contact 40 is set off, and a switch 42 is changed over. The opening of the bypass valve 26 is maintained by the memory 34 and the function generator 36 so that the steam supply volume directly before tripping may be provided. Therefore, the device prevents a boiler from tripping and ensures a steady supply of service steam for the turbine.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8577179A JPS5612004A (en) | 1979-07-06 | 1979-07-06 | Bypass line valve controlling for turbine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8577179A JPS5612004A (en) | 1979-07-06 | 1979-07-06 | Bypass line valve controlling for turbine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5612004A true JPS5612004A (en) | 1981-02-05 |
Family
ID=13868129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8577179A Pending JPS5612004A (en) | 1979-07-06 | 1979-07-06 | Bypass line valve controlling for turbine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5612004A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59231111A (en) * | 1983-06-14 | 1984-12-25 | Babcock Hitachi Kk | Pressure reducing device of steam |
JPS6345403A (en) * | 1986-08-13 | 1988-02-26 | Mayekawa Mfg Co Ltd | Method for controlling back pressure in rotary machine driven by screw type expansion machine |
WO2009060635A1 (en) * | 2007-11-08 | 2009-05-14 | Miura Co., Ltd. | Steam system |
-
1979
- 1979-07-06 JP JP8577179A patent/JPS5612004A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59231111A (en) * | 1983-06-14 | 1984-12-25 | Babcock Hitachi Kk | Pressure reducing device of steam |
JPS6345403A (en) * | 1986-08-13 | 1988-02-26 | Mayekawa Mfg Co Ltd | Method for controlling back pressure in rotary machine driven by screw type expansion machine |
WO2009060635A1 (en) * | 2007-11-08 | 2009-05-14 | Miura Co., Ltd. | Steam system |
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