JPS5799214A - Temperature control apparatus for gland seal vapor in steam turbine - Google Patents
Temperature control apparatus for gland seal vapor in steam turbineInfo
- Publication number
- JPS5799214A JPS5799214A JP17453280A JP17453280A JPS5799214A JP S5799214 A JPS5799214 A JP S5799214A JP 17453280 A JP17453280 A JP 17453280A JP 17453280 A JP17453280 A JP 17453280A JP S5799214 A JPS5799214 A JP S5799214A
- Authority
- JP
- Japan
- Prior art keywords
- gland
- temperature
- seal steam
- control apparatus
- 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
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
PURPOSE: To keep a proper temperature of supply steam through every operating conditions in gland seal steam system by detecting seal steam temperature and regulating the flow rate at a water spray apparatus for cooling gland pipings.
CONSTITUTION: Seal steam which passes through gland pipeing 14 is supplied to seal steam supply section of shaft packing 5 at low pressure rotor 16. The seal steam temperature is detected by thermocouple 21. The signal S1 is calculated by comparison with a predetermined temperature at control apparatus 22 and transformed into signal S3, which regulates the flow control valve 23 of water supply nozzle 20, and cools the surface of the gland piping 14 covered by outer tube 19 to keep a proper temperature. Thereby, embrittlement, excess elongation differance, etc. of rotor shaft caused by gland temperature rise through every operating conditions including start up conditions can be avoided.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17453280A JPS5799214A (en) | 1980-12-12 | 1980-12-12 | Temperature control apparatus for gland seal vapor in steam turbine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17453280A JPS5799214A (en) | 1980-12-12 | 1980-12-12 | Temperature control apparatus for gland seal vapor in steam turbine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5799214A true JPS5799214A (en) | 1982-06-19 |
Family
ID=15980168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17453280A Pending JPS5799214A (en) | 1980-12-12 | 1980-12-12 | Temperature control apparatus for gland seal vapor in steam turbine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5799214A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5993903A (en) * | 1982-11-22 | 1984-05-30 | Hitachi Ltd | Turbine gland steam attemperator for steam power plant |
US5340272A (en) * | 1992-08-19 | 1994-08-23 | Bw/Ip International, Inc. | Multi-stage centrifugal pump incorporating a sealed thrust bearing |
JPH1026004A (en) * | 1996-07-09 | 1998-01-27 | Fuji Electric Co Ltd | Method for controlling shaft seal steam temperature of steam turbine |
CN103628934A (en) * | 2013-11-11 | 2014-03-12 | 长兴新城环保有限公司 | Temperature and pressure reducing device for steam turbine shaft seal |
CN113404556A (en) * | 2021-06-18 | 2021-09-17 | 东方电气集团东方汽轮机有限公司 | Steam turbine low pressure bearing seal cooling system |
-
1980
- 1980-12-12 JP JP17453280A patent/JPS5799214A/en active Pending
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5993903A (en) * | 1982-11-22 | 1984-05-30 | Hitachi Ltd | Turbine gland steam attemperator for steam power plant |
US5340272A (en) * | 1992-08-19 | 1994-08-23 | Bw/Ip International, Inc. | Multi-stage centrifugal pump incorporating a sealed thrust bearing |
JPH1026004A (en) * | 1996-07-09 | 1998-01-27 | Fuji Electric Co Ltd | Method for controlling shaft seal steam temperature of steam turbine |
CN103628934A (en) * | 2013-11-11 | 2014-03-12 | 长兴新城环保有限公司 | Temperature and pressure reducing device for steam turbine shaft seal |
CN103628934B (en) * | 2013-11-11 | 2015-07-15 | 长兴新城环保有限公司 | Temperature and pressure reducing device for steam turbine shaft seal |
CN113404556A (en) * | 2021-06-18 | 2021-09-17 | 东方电气集团东方汽轮机有限公司 | Steam turbine low pressure bearing seal cooling system |
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