GB987264A - Hydraulic control system for steam turbines - Google Patents
Hydraulic control system for steam turbinesInfo
- Publication number
- GB987264A GB987264A GB716062A GB716062A GB987264A GB 987264 A GB987264 A GB 987264A GB 716062 A GB716062 A GB 716062A GB 716062 A GB716062 A GB 716062A GB 987264 A GB987264 A GB 987264A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- control
- servopiston
- steam
- pressure
- 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.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/02—Shutting-down responsive to overspeed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K9/00—Plants characterised by condensers arranged or modified to co-operate with the engines
- F01K9/04—Plants characterised by condensers arranged or modified to co-operate with the engines with dump valves to by-pass stages
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Control Of Turbines (AREA)
Abstract
987,264. Steam turbine plant. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. Feb. 23, 1962 [Feb. 23, 1961], No. 7160/62. Heading F1T. [Also in Division G3] A control system for a steam turbine 23 fed through a control valve 13 and quick-acting cut-off valve 27 from a steam generator 12 of boiling-water reactor type comprises servopistons 20, 28 for the valves 13, 27, a servopiston 24 for actuating a valve 14 which by-passes steam to an injection cooler 29 and condenser 30, a valve actuated by a governor 22 for controlling the servopiston 20 and for applying a signal to the upper side of a piston 18 which actuates a valve controlling the servopiston 24, and a valve actuated by a bellows 16 responsive to steam pressure and controlling the servopiston 20 and, through a spring 17, influencing the valve that controls the servopiston 24. A by-pass control 26 and a starting control 25 are adjustable by remotely controlled motors M to control the servopistons 24, 20 independently of each other before the working pressure of the system has been reached. If the installation is started up with the controls 25, 26 closed the turbine valve 13 does not open until the working pressure has been reached to open the valve operated by the bellows 16. Thereafter,. the turbine valve 13 is controlled by the governor 22 which also controls the valve 14 through the piston 18 in such a manner that when the valve 13 is moved towards closure due, e.g., to decreased load on the turbine, the opening of the by-pass valve 14 is increased. The by-pass valve is also opened in response to operation of the control 31 of the quick-acting cut-off valve 27. Any tendency for the steam pressure to exceed its working value causes the bellows 16 to open the by-pass valve 14. The control valves for the servopistons are connected downstream of restrictions 32, 33, 34, 35 in conduits supplied from a pressure source pi v , and control discharge to outlets O. The governor 22 and bellows 16 are adjustable by remotely controlled electric motors M. The pressure that actuates the servopiston 24 may also control the reactor.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1961L0038279 DE1401441A1 (en) | 1961-02-23 | 1961-02-23 | Hydraulic control device for steam turbines with bypass, which get their working steam from reactors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB987264A true GB987264A (en) | 1965-03-24 |
Family
ID=7268225
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB716062A Expired GB987264A (en) | 1961-02-23 | 1962-02-23 | Hydraulic control system for steam turbines |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE613965A (en) |
| CH (1) | CH389643A (en) |
| DE (1) | DE1401441A1 (en) |
| GB (1) | GB987264A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523041A (en) * | 2016-10-12 | 2017-03-22 | 国网上海市电力公司 | Differential expansion protection control system for steam turbine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH632315A5 (en) * | 1978-02-21 | 1982-09-30 | Bbc Brown Boveri & Cie | STEAM TURBINE SYSTEM. |
-
1961
- 1961-02-23 DE DE1961L0038279 patent/DE1401441A1/en active Pending
-
1962
- 1962-02-02 CH CH134962A patent/CH389643A/en unknown
- 1962-02-15 BE BE613965A patent/BE613965A/en unknown
- 1962-02-23 GB GB716062A patent/GB987264A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523041A (en) * | 2016-10-12 | 2017-03-22 | 国网上海市电力公司 | Differential expansion protection control system for steam turbine |
| CN106523041B (en) * | 2016-10-12 | 2018-01-02 | 国网上海市电力公司 | A kind of steam turbine differential expansion Protection control system |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1401441A1 (en) | 1968-12-19 |
| CH389643A (en) | 1965-03-31 |
| BE613965A (en) | 1962-05-29 |
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