JPS6483803A - Structure for arranging steam stationary blade - Google Patents
Structure for arranging steam stationary bladeInfo
- Publication number
- JPS6483803A JPS6483803A JP23873387A JP23873387A JPS6483803A JP S6483803 A JPS6483803 A JP S6483803A JP 23873387 A JP23873387 A JP 23873387A JP 23873387 A JP23873387 A JP 23873387A JP S6483803 A JPS6483803 A JP S6483803A
- Authority
- JP
- Japan
- Prior art keywords
- turbine
- steam
- valve
- vicinity
- partial feed
- 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
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
PURPOSE:To promote the reduction of fluctuating force acting on a moving blade by forming a stationary blade smaller in its outflow angle in the vicinity of an inlet boundary in a partial feed stage while larger in the vicinity of an outlet boundary, in case of the partial feed stage feeding stems from one part of the total periphery in an annular stationary blade cascade. CONSTITUTION:A steam turbine introduces steam from a boiler to a turbine steam inlet part through two or more control valves (No.1 valve-No.2 valve), and an inflow of the steam to the turbine is placed in a partial feed condition (figure shows condition with only No.1 valve fully opened) in accordance with opening and closing the control valve. A gate valve 1011, dividing the total periphery corresponding to each control valve, is provided in the turbine steam inlet part. In case of the steam turbine thus obtained, in order to reduce the generation of large fluctuating force acting on a moving blade 13, the turbine forms a stationary blade 12 to be decreased in its outflow angle in the vicinity of an inlet boundary 14 in a partial feed part, while increased in the vicinity of an outlet boundary 15 in the partial feed part.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23873387A JPS6483803A (en) | 1987-09-25 | 1987-09-25 | Structure for arranging steam stationary blade |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23873387A JPS6483803A (en) | 1987-09-25 | 1987-09-25 | Structure for arranging steam stationary blade |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6483803A true JPS6483803A (en) | 1989-03-29 |
Family
ID=17034449
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23873387A Pending JPS6483803A (en) | 1987-09-25 | 1987-09-25 | Structure for arranging steam stationary blade |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6483803A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2044747A2 (en) * | 1990-06-07 | 1994-01-01 | Westinghouse Electric Corp | Control stage nozzle vane for use in partial arc operation |
-
1987
- 1987-09-25 JP JP23873387A patent/JPS6483803A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2044747A2 (en) * | 1990-06-07 | 1994-01-01 | Westinghouse Electric Corp | Control stage nozzle vane for use in partial arc operation |
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