SE7611271L - SECURITY SYSTEM FOR AN ANGTURBINE SYSTEM - Google Patents

SECURITY SYSTEM FOR AN ANGTURBINE SYSTEM

Info

Publication number
SE7611271L
SE7611271L SE7611271A SE7611271A SE7611271L SE 7611271 L SE7611271 L SE 7611271L SE 7611271 A SE7611271 A SE 7611271A SE 7611271 A SE7611271 A SE 7611271A SE 7611271 L SE7611271 L SE 7611271L
Authority
SE
Sweden
Prior art keywords
valve
turbine
stage
signal
close
Prior art date
Application number
SE7611271A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE411932B (en
Inventor
A Oberle
Original Assignee
Bbc Brown Boveri & Cie
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Publication of SE7611271L publication Critical patent/SE7611271L/en
Publication of SE411932B publication Critical patent/SE411932B/en

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steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating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.
SE7611271A 1975-10-15 1976-10-11 SECURITY SYSTEM FOR AN ANGTURBIN INSTALLATION SE411932B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1334675A CH594811A5 (en) 1975-10-15 1975-10-15

Publications (2)

Publication Number Publication Date
SE7611271L true SE7611271L (en) 1977-04-16
SE411932B SE411932B (en) 1980-02-11

Family

ID=4391618

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7611271A SE411932B (en) 1975-10-15 1976-10-11 SECURITY SYSTEM FOR AN ANGTURBIN 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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
DE2550059A1 (en) 1977-04-21
SE411932B (en) 1980-02-11
FR2328107A1 (en) 1977-05-13
GB1529935A (en) 1978-10-25
DE2550059C2 (en) 1990-01-04
FR2328107B1 (en) 1980-09-12
PL108873B1 (en) 1980-05-31
CH594811A5 (en) 1978-01-31
HU175326B (en) 1980-06-28

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