JPS562404A - Steam turbine control method - Google Patents
Steam turbine control methodInfo
- Publication number
- JPS562404A JPS562404A JP7681379A JP7681379A JPS562404A JP S562404 A JPS562404 A JP S562404A JP 7681379 A JP7681379 A JP 7681379A JP 7681379 A JP7681379 A JP 7681379A JP S562404 A JPS562404 A JP S562404A
- Authority
- JP
- Japan
- Prior art keywords
- steam
- nozzle
- flow
- high pressure
- plural
- 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
- Control Of Turbines (AREA)
Abstract
PURPOSE: To reduce throttling pressure drops of a steam control valve by controlling a steam flow rate in the nozzles of a turbine and generator sides with other steam control valves where the high pressure first stage nozzle is provided for a plural flow while all the other nozzle ends are provided for a single flow.
CONSTITUTION: A high temperature and high pressure steam flow from a boiler is branched to steam lines 31 and 32 through a main choke valve and controlled by 4 sets of steam control valves 33W36, 37W40 respectively, and introduced into a plural flow nozzle box 49. The plural flow nozzle box 49 is provided with a turbine nozzle 50 of the high pressure first stage and a generator nozzle 51. The nozzles 50 and 51 are devided into a plural steam chambers F1 through I and J through M. The above-stated steam is injected into revolving blades 16 and 17 from nozzles 52 and 53. Then the steam flowing in the direction of S and S' is introduced into the high pressure second stage and rotates a rotor 23, doing work. The above method can reduce throttling pressure drops during partial load, and enhance the internal efficiency.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7681379A JPS562404A (en) | 1979-06-20 | 1979-06-20 | Steam turbine control method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7681379A JPS562404A (en) | 1979-06-20 | 1979-06-20 | Steam turbine control method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS562404A true JPS562404A (en) | 1981-01-12 |
Family
ID=13616103
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7681379A Pending JPS562404A (en) | 1979-06-20 | 1979-06-20 | Steam turbine control method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS562404A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103244203A (en) * | 2013-05-21 | 2013-08-14 | 国家电网公司 | Throttle valve system and working method thereof |
-
1979
- 1979-06-20 JP JP7681379A patent/JPS562404A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103244203A (en) * | 2013-05-21 | 2013-08-14 | 国家电网公司 | Throttle valve system and working method thereof |
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