GB1529935A - Safety system for a steam turbine installation - Google Patents
Safety system for a steam turbine installationInfo
- Publication number
- GB1529935A GB1529935A GB4250976A GB4250976A GB1529935A GB 1529935 A GB1529935 A GB 1529935A GB 4250976 A GB4250976 A GB 4250976A GB 4250976 A GB4250976 A GB 4250976A GB 1529935 A GB1529935 A GB 1529935A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- turbine
- stage
- signal
- close
- 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
- 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
- F01K9/006—Vacuum-breakers
-
- 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
- F01K7/00—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/16—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type
- F01K7/22—Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being only of turbine type the turbines having inter-stage steam heating
- F01K7/24—Control or safety means specially adapted therefor
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
1529935 Steam turbines BBC BROWN BOVERI & CO Ltd 13 Oct 1976 [15 Oct 1975] 42509/76 Heading FIT [Also in Division F4] In a steam turbine installation, when the load on two-stage turbine 4, 6 is dumped a safety and regulating device 11 calls for closure of governor valve 3 and interceptor valve 7 via signals 14, 16, and if valve 3 fails to close then logic circuit 27 responds to the disparity between signal 14 and a signal 26 from a sensor 25 monitoring the pressure drop across stage 4 of the turbine and after a delay of 0.2-0.5 secs the circuit trips device 11. Upon being tripped, device 11 calls for closure of stopvalves 2, 8 and partial opening of vacuum break valve 20 via signals 12, 18, 21. If valves 2, 8 close, then valve 20 is reclosed after the vacuum has been lowered a small amount. If, however, sensor 25 still detects a pressure differential 1-5 secs after device 11 is tripped then the circuit 27 provides a signal 29 which serves (a) to fully open the vacuum break valve 20, (b) to open valve 34 to admit water to cooling nozzles in the second stage of the turbine, (c) to close down the steam generator (51) which may be part of a nuclear power plant. The device 11 may also be tripped by sensors monitoring other parameters, e.g. bearing temp. A second logic circuit 37 is included which receives signals 16, 18 and a signal 36 from a sensor 35 monitoring the pressure drop across the second stage of the turbine and which responds similarly to circuit 27 if valves 7, 8 fail to close.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1334675A CH594811A5 (en) | 1975-10-15 | 1975-10-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1529935A true GB1529935A (en) | 1978-10-25 |
Family
ID=4391618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4250976A Expired GB1529935A (en) | 1975-10-15 | 1976-10-13 | Safety system for a steam turbine installation |
Country Status (7)
Country | Link |
---|---|
CH (1) | CH594811A5 (en) |
DE (1) | DE2550059C2 (en) |
FR (1) | FR2328107A1 (en) |
GB (1) | GB1529935A (en) |
HU (1) | HU175326B (en) |
PL (1) | PL108873B1 (en) |
SE (1) | SE411932B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009015260B4 (en) * | 2009-04-01 | 2013-02-14 | Areva Np Gmbh | Device for phase separation of a multiphase fluid flow, steam turbine plant with such a device and associated operating method |
DE102012023898A1 (en) * | 2012-12-07 | 2014-06-12 | Man Diesel & Turbo Se | Method for operating plant for production of mechanical and electrical energy, has turbine in which steam is supplied and capacitor with closed vacuum breaker valve is evacuated |
DE102016217216A1 (en) | 2016-09-09 | 2018-03-15 | Siemens Aktiengesellschaft | Turbine system and method for operating a turbine system |
DE102018209203B4 (en) * | 2018-06-08 | 2020-06-18 | Philipp Lücke | Low pressure steam turbine plant and operating method for a low pressure steam turbine plant |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE198119C (en) * | ||||
DE383249C (en) * | 1922-08-08 | 1923-10-11 | Bbc Brown Boveri & Cie | Securing steam turbines, in particular dual-pressure and exhaust steam turbines |
US2285208A (en) * | 1940-04-10 | 1942-06-02 | Gen Electric | Automatic turbine control system |
DE1023049B (en) * | 1952-09-27 | 1958-01-23 | Bbc Brown Boveri & Cie | Regulation of a steam turbine system with reheating |
DE1030356B (en) * | 1956-10-19 | 1958-05-22 | Siemens Ag | Turbine system with reheating |
DE1933473C3 (en) * | 1969-07-02 | 1974-02-07 | Siemens Ag, 1000 Berlin U. 8000 Muenchen | Interception device for steam turbines |
DE2022397C3 (en) * | 1970-05-08 | 1974-08-08 | Kraftwerk Union Ag, 4330 Muelheim | Interception device for steam turbines |
AT326807B (en) * | 1973-04-17 | 1975-12-29 | Boehler & Co Ag Geb | PUNCH KNIVES |
-
1975
- 1975-10-15 CH CH1334675A patent/CH594811A5/xx not_active IP Right Cessation
- 1975-11-07 DE DE19752550059 patent/DE2550059C2/en not_active Expired
-
1976
- 1976-10-01 HU HU76BO1635A patent/HU175326B/en unknown
- 1976-10-11 SE SE7611271A patent/SE411932B/en not_active IP Right Cessation
- 1976-10-13 FR FR7630790A patent/FR2328107A1/en active Granted
- 1976-10-13 PL PL19298476A patent/PL108873B1/en unknown
- 1976-10-13 GB GB4250976A patent/GB1529935A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2328107A1 (en) | 1977-05-13 |
FR2328107B1 (en) | 1980-09-12 |
CH594811A5 (en) | 1978-01-31 |
SE7611271L (en) | 1977-04-16 |
HU175326B (en) | 1980-06-28 |
SE411932B (en) | 1980-02-11 |
PL108873B1 (en) | 1980-05-31 |
DE2550059C2 (en) | 1990-01-04 |
DE2550059A1 (en) | 1977-04-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |