JPS5465203A - Nozzle cut-out governor for steam turbine - Google Patents
Nozzle cut-out governor for steam turbineInfo
- Publication number
- JPS5465203A JPS5465203A JP13101977A JP13101977A JPS5465203A JP S5465203 A JPS5465203 A JP S5465203A JP 13101977 A JP13101977 A JP 13101977A JP 13101977 A JP13101977 A JP 13101977A JP S5465203 A JPS5465203 A JP S5465203A
- Authority
- JP
- Japan
- Prior art keywords
- steam
- blades
- steam turbine
- nozzles
- turbine
- 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 provide a nozzle cut-out governor for a steam turbine which is improved in its safety and has reduced flow loss therein by improving the efficiency of a governing stage during a partial load running of the turbine and by reducing the number of repetitions of the fluctuations of load applied to the blades of the governing stage.
CONSTITUTION: A steam turbine has two governing stages 1, 2 provided for an axle 39 and is driven to rotate by steam which is injected towards two rows 40, 41 of blades in the stages. The output power of the steam turbine is controlled by regulating the amount of the flow which is sent out to the blades 40, 41. The steam turbine is further provided with steam pipes 31W34 which communicate to respective nozzle valves (regulator valves) not shown and also to steam chambers 35W38 which are provided with respective nozzles 46W49 and arranged in opposition to the blades 40, 41 along their respective circumferences. The nozzle valves are operated such that, when the flow of steam is to be increased, steam is injected from the nozzles beginning with the nozzles 46, 47 while the nozzles 48, 49 are at first shut off when steam is to be decreased.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13101977A JPS5465203A (en) | 1977-11-01 | 1977-11-01 | Nozzle cut-out governor for steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13101977A JPS5465203A (en) | 1977-11-01 | 1977-11-01 | Nozzle cut-out governor for steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5465203A true JPS5465203A (en) | 1979-05-25 |
Family
ID=15048086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13101977A Pending JPS5465203A (en) | 1977-11-01 | 1977-11-01 | Nozzle cut-out governor for steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5465203A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5277546A (en) * | 1991-04-23 | 1994-01-11 | Mccain Foods Limited | Turbine |
| EP2157287A1 (en) * | 2008-08-22 | 2010-02-24 | ALSTOM Technology Ltd | Multifrequency control stage for improved dampening of excitation factors |
| EP2206894A1 (en) * | 2009-01-12 | 2010-07-14 | General Electric Company | Steam turbine having exhaust enthalpic condition control and related method |
| CN103016071A (en) * | 2012-12-26 | 2013-04-03 | 北京国电蓝天节能科技开发有限公司 | Asymmetrically arranged four-valve steam turbine nozzle block structure |
-
1977
- 1977-11-01 JP JP13101977A patent/JPS5465203A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5277546A (en) * | 1991-04-23 | 1994-01-11 | Mccain Foods Limited | Turbine |
| EP2157287A1 (en) * | 2008-08-22 | 2010-02-24 | ALSTOM Technology Ltd | Multifrequency control stage for improved dampening of excitation factors |
| JP2010048254A (en) * | 2008-08-22 | 2010-03-04 | Alstom Technology Ltd | Multi-frequency control stage for improved dampening of excitation factor |
| CN101864995A (en) * | 2008-08-22 | 2010-10-20 | 阿尔斯托姆科技有限公司 | Multifrequency control stage for improved dampening of excitation factors |
| US8333555B2 (en) | 2008-08-22 | 2012-12-18 | Alstom Technology Ltd. | Multifrequency control stage for improved dampening of excitation factors |
| EP2206894A1 (en) * | 2009-01-12 | 2010-07-14 | General Electric Company | Steam turbine having exhaust enthalpic condition control and related method |
| US8186935B2 (en) | 2009-01-12 | 2012-05-29 | General Electric Company | Steam turbine having exhaust enthalpic condition control and related method |
| CN103016071A (en) * | 2012-12-26 | 2013-04-03 | 北京国电蓝天节能科技开发有限公司 | Asymmetrically arranged four-valve steam turbine nozzle block structure |
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