JPS5632009A - Control system for steam turbine - Google Patents
Control system for steam turbineInfo
- Publication number
- JPS5632009A JPS5632009A JP10777479A JP10777479A JPS5632009A JP S5632009 A JPS5632009 A JP S5632009A JP 10777479 A JP10777479 A JP 10777479A JP 10777479 A JP10777479 A JP 10777479A JP S5632009 A JPS5632009 A JP S5632009A
- Authority
- JP
- Japan
- Prior art keywords
- steam
- steam turbine
- pressure
- inlet
- turbine
- 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.)
- Granted
Links
Landscapes
- Control Of Turbines (AREA)
Abstract
PURPOSE: To preclude a cool air from flowing into a turbine by a method wherein a follow-up signal produced from an output of the steam turbine and an inlet steam pressure is operated only when a pressure fluctuation is large and thereby a steam regulating valve is choked, in the steam turbine operated under a pressure changing operation.
CONSTITUTION: An opening of a steam regulating valve is determined by an inlet steam pressure detector 28 for a steam turbine 4 and a pressure detector 30 for the first stage of the steam turbine. Said opening compares a signal of a load limitter 15 in an adder 34 through an adder 43. When a fluctuation in the inlet steam pressure is large, a relay circuit 42 is actuated to close a contact 42A and a new load limitting signal, i.e. an output signal of the adder 43, throttles the steam regulating valve 3 through a low value preference circuit 44. Thereby, the variation of the inlet pressure of the steam turbine is restricted and inflow of a cool air into the steam turbine can be prevented.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10777479A JPS5632009A (en) | 1979-08-24 | 1979-08-24 | Control system for steam turbine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10777479A JPS5632009A (en) | 1979-08-24 | 1979-08-24 | Control system for steam turbine |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5632009A true JPS5632009A (en) | 1981-04-01 |
JPS623283B2 JPS623283B2 (en) | 1987-01-24 |
Family
ID=14467666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10777479A Granted JPS5632009A (en) | 1979-08-24 | 1979-08-24 | Control system for steam turbine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5632009A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60259709A (en) * | 1984-06-05 | 1985-12-21 | Mitsubishi Electric Corp | Control unit for steam turbine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6423297B2 (en) | 2015-03-20 | 2018-11-14 | 千代田化工建設株式会社 | BOG processing equipment |
-
1979
- 1979-08-24 JP JP10777479A patent/JPS5632009A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60259709A (en) * | 1984-06-05 | 1985-12-21 | Mitsubishi Electric Corp | Control unit for steam turbine |
Also Published As
Publication number | Publication date |
---|---|
JPS623283B2 (en) | 1987-01-24 |
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