JPS54113708A - Steam sealing device - Google Patents
Steam sealing deviceInfo
- Publication number
- JPS54113708A JPS54113708A JP1987278A JP1987278A JPS54113708A JP S54113708 A JPS54113708 A JP S54113708A JP 1987278 A JP1987278 A JP 1987278A JP 1987278 A JP1987278 A JP 1987278A JP S54113708 A JPS54113708 A JP S54113708A
- Authority
- JP
- Japan
- Prior art keywords
- steam
- turbine
- seal
- packing
- gland
- 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: In a reheating steam turbine of a counterflow type, to connect the intermediate gland part to a steam seal adjusting device and to open a connecting valve by a turbine stop signal, thereby to carry out steam sealing econimically.
CONSTITUTION: In a reheating steam turbine of a counterflow type, sealing steam is generally provided by leaked steam from a high-pressure gland steam packing 6 of a high-pressure turbine 2 and is supplied to a steam seal header 14. Surplus steam is led through an escape valve 16 to a condenser 9. When the turbine trips and thus turbine bypass valves 24 and 27 have beenn opened, an intermediate gland seal steam supply valve 21 is opened through an operating device 23 by a turbine trip signal 22. According to the device, the intermediat part of the intermediate gland steam seal packing 8 is maintained substantially at the atmospheric pressure, and it is possible to reduce the steam leakage from a lalaby packing 29 to the minimum.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987278A JPS54113708A (en) | 1978-02-24 | 1978-02-24 | Steam sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987278A JPS54113708A (en) | 1978-02-24 | 1978-02-24 | Steam sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54113708A true JPS54113708A (en) | 1979-09-05 |
Family
ID=12011295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987278A Pending JPS54113708A (en) | 1978-02-24 | 1978-02-24 | Steam sealing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54113708A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5454689A (en) * | 1992-07-10 | 1995-10-03 | Ansaldo Gie S.R.L. | Process for sealing the rotor of a turbine which uses wet geothermal steam |
| US20120027565A1 (en) * | 2010-07-28 | 2012-02-02 | General Electric Company | System and method for controlling leak steam to steam seal header for improving steam turbine performance |
| JP2012117541A (en) * | 2010-12-01 | 2012-06-21 | General Electric Co <Ge> | Mid-span packing pressure turbine diagnostic method |
-
1978
- 1978-02-24 JP JP1987278A patent/JPS54113708A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5454689A (en) * | 1992-07-10 | 1995-10-03 | Ansaldo Gie S.R.L. | Process for sealing the rotor of a turbine which uses wet geothermal steam |
| US20120027565A1 (en) * | 2010-07-28 | 2012-02-02 | General Electric Company | System and method for controlling leak steam to steam seal header for improving steam turbine performance |
| US8545166B2 (en) * | 2010-07-28 | 2013-10-01 | General Electric Company | System and method for controlling leak steam to steam seal header for improving steam turbine performance |
| JP2012117541A (en) * | 2010-12-01 | 2012-06-21 | General Electric Co <Ge> | Mid-span packing pressure turbine diagnostic method |
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