JPS643202A - Cooling device for steam turbine - Google Patents
Cooling device for steam turbineInfo
- Publication number
- JPS643202A JPS643202A JP15898387A JP15898387A JPS643202A JP S643202 A JPS643202 A JP S643202A JP 15898387 A JP15898387 A JP 15898387A JP 15898387 A JP15898387 A JP 15898387A JP S643202 A JPS643202 A JP S643202A
- Authority
- JP
- Japan
- Prior art keywords
- inner ring
- nozzle inner
- blocks
- turbine rotor
- cooling steam
- 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
- 238000001816 cooling Methods 0.000 title abstract 5
- 230000003247 decreasing effect Effects 0.000 abstract 1
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
PURPOSE:To raise the cooling efficiency at a blades setting part, by attaching plural blocks radially on the side surface of a nozzle inner ring which confronts a turbine rotor. CONSTITUTION:Cooling steam 9 is fed between a turbine rotor 5 and a nozzle inner ring 3. Plural blocks 37 are attached radially, on the side surface of the nozzle inner ring 3 which confronts the turbine rotor 5, as these blocks 37 increase the width of the nozzle inner ring 3 as sighted diametrically. As the sectional area of a flow route for the cooling steam is diametrically decreased by the blocks 37, the flowing speed of the cooling steam is raised. In this way, as the coefficient of thermal conductivity is raised, a blades setting part can be cooled efficiently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15898387A JPS643202A (en) | 1987-06-26 | 1987-06-26 | Cooling device for steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15898387A JPS643202A (en) | 1987-06-26 | 1987-06-26 | Cooling device for steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS643202A true JPS643202A (en) | 1989-01-09 |
Family
ID=15683649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15898387A Pending JPS643202A (en) | 1987-06-26 | 1987-06-26 | Cooling device for steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS643202A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002221001A (en) * | 2001-01-22 | 2002-08-09 | Ishikawajima Harima Heavy Ind Co Ltd | Mainstream blowing method of gas turbine purge air |
| JP2007085348A (en) * | 2005-09-22 | 2007-04-05 | General Electric Co <Ge> | Method and apparatus for first stage cooling of a double flow turbine |
| JP2009203984A (en) * | 2008-02-28 | 2009-09-10 | General Electric Co <Ge> | Apparatus and method for cooling tub part of double flow turbine |
| CN101634232A (en) * | 2008-07-24 | 2010-01-27 | 通用电气公司 | System and method for providing supercritical cooling steam into a wheelspace of a turbine |
-
1987
- 1987-06-26 JP JP15898387A patent/JPS643202A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002221001A (en) * | 2001-01-22 | 2002-08-09 | Ishikawajima Harima Heavy Ind Co Ltd | Mainstream blowing method of gas turbine purge air |
| JP2007085348A (en) * | 2005-09-22 | 2007-04-05 | General Electric Co <Ge> | Method and apparatus for first stage cooling of a double flow turbine |
| JP2009203984A (en) * | 2008-02-28 | 2009-09-10 | General Electric Co <Ge> | Apparatus and method for cooling tub part of double flow turbine |
| CN101634232A (en) * | 2008-07-24 | 2010-01-27 | 通用电气公司 | System and method for providing supercritical cooling steam into a wheelspace of a turbine |
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