JPS5799219A - Air cooling method and apparatus for steam turbine - Google Patents
Air cooling method and apparatus for steam turbineInfo
- Publication number
- JPS5799219A JPS5799219A JP17453080A JP17453080A JPS5799219A JP S5799219 A JPS5799219 A JP S5799219A JP 17453080 A JP17453080 A JP 17453080A JP 17453080 A JP17453080 A JP 17453080A JP S5799219 A JPS5799219 A JP S5799219A
- Authority
- JP
- Japan
- Prior art keywords
- low pressure
- pressure turbine
- turbine
- sealing section
- air
- 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)
- Control Of Turbines (AREA)
Abstract
PURPOSE: To enable prevention of abnormal thermal deformation by newly feeding a low pressure turbine with more air than cooling air quantity leaking from a low pressure turbine rotor sealing section, in a steam turbine which performs forced cooling.
CONSTITUTION: Heated air from an intermdiate turbine flows into a low pressure turbine 3 via a crossover pipe 9. By this, pressure of condenser 10 rises. This pressure rise is measured by a pressure gauge 21 and a leakage from a rotor sealing section 16 is calculated. Opening of a flow control valve 23 is controlled with an operation signal from this pressure gauge 21 and cooling air exceeding a leakage from the sealing section 16 is supplied in the condenser 10, namely a low pressure turbine 3. This supply is stopped just before operation of a safety device 10 set at the low pressure turbine 3. In this way, inflow of heated air into the low pressure turbine from the crossover pipe 9 is stopped and abnormal thermal deformation can be prevented.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17453080A JPS5799219A (en) | 1980-12-12 | 1980-12-12 | Air cooling method and apparatus for steam turbine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17453080A JPS5799219A (en) | 1980-12-12 | 1980-12-12 | Air cooling method and apparatus for steam turbine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5799219A true JPS5799219A (en) | 1982-06-19 |
Family
ID=15980134
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17453080A Pending JPS5799219A (en) | 1980-12-12 | 1980-12-12 | Air cooling method and apparatus for steam turbine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5799219A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62237011A (en) * | 1986-04-07 | 1987-10-17 | Hitachi Ltd | Steam turbine forcibly cooling device for nuclear power generation |
-
1980
- 1980-12-12 JP JP17453080A patent/JPS5799219A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62237011A (en) * | 1986-04-07 | 1987-10-17 | Hitachi Ltd | Steam turbine forcibly cooling device for nuclear power generation |
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