JPS54114620A - Thermal stress reducing method of turbine rotor - Google Patents
Thermal stress reducing method of turbine rotorInfo
- Publication number
- JPS54114620A JPS54114620A JP2162278A JP2162278A JPS54114620A JP S54114620 A JPS54114620 A JP S54114620A JP 2162278 A JP2162278 A JP 2162278A JP 2162278 A JP2162278 A JP 2162278A JP S54114620 A JPS54114620 A JP S54114620A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- turbine
- center hole
- temperature
- holes
- 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
Abstract
PURPOSE: To reduce the thermal stress of a rotor, by equalizing the temperature distribution of the rotor by passing a heating or cooling fluid through a center hole of the rotor.
CONSTITUTION: A number of holes 3 are penetrated in the axial direction of a turbine rotor 2 mounted into a turbine casing 1, heating sources 4 (For example, electric heating sources) are installed to several holes among the holes 3 and conductors connected to the heating sources are extracted from a center hole 5 and connected to a temperature controller. When starting in the case when a turbine is cool, the turbine can be started heating the surface and the inside of the rotor at the same speed by means of the temperature controller. When during the warming-up starting of the turbine and the stopping of the turbine, temperature difference between the surface of the rotor and the center hole can be reduced by passing a cooling fluid through the holes 3 and the center hole 5 because the temperature of the surface of the rotor is higher than the temperature of the center hole.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2162278A JPS54114620A (en) | 1978-02-28 | 1978-02-28 | Thermal stress reducing method of turbine rotor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2162278A JPS54114620A (en) | 1978-02-28 | 1978-02-28 | Thermal stress reducing method of turbine rotor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54114620A true JPS54114620A (en) | 1979-09-06 |
Family
ID=12060151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2162278A Pending JPS54114620A (en) | 1978-02-28 | 1978-02-28 | Thermal stress reducing method of turbine rotor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54114620A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4880354A (en) * | 1987-11-25 | 1989-11-14 | Hitachi, Ltd. | Warming structure of gas turbine rotor |
US6593547B1 (en) | 2000-11-30 | 2003-07-15 | Pacific Scientific Electro Kinetics Division | Air gap deicing device |
EP1895095A1 (en) * | 2006-09-04 | 2008-03-05 | Siemens Aktiengesellschaft | Turbine engine and method of operating the same |
-
1978
- 1978-02-28 JP JP2162278A patent/JPS54114620A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4880354A (en) * | 1987-11-25 | 1989-11-14 | Hitachi, Ltd. | Warming structure of gas turbine rotor |
US6593547B1 (en) | 2000-11-30 | 2003-07-15 | Pacific Scientific Electro Kinetics Division | Air gap deicing device |
EP1895095A1 (en) * | 2006-09-04 | 2008-03-05 | Siemens Aktiengesellschaft | Turbine engine and method of operating the same |
WO2008028792A1 (en) * | 2006-09-04 | 2008-03-13 | Siemens Aktiengesellschaft | Turbine engine and method of operating the same |
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