[go: up one dir, main page]

GB1541471A - Emergency trip device - Google Patents

Emergency trip device

Info

Publication number
GB1541471A
GB1541471A GB2541476A GB2541476A GB1541471A GB 1541471 A GB1541471 A GB 1541471A GB 2541476 A GB2541476 A GB 2541476A GB 2541476 A GB2541476 A GB 2541476A GB 1541471 A GB1541471 A GB 1541471A
Authority
GB
United Kingdom
Prior art keywords
valve
inlet
line
outlet
main valve
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
Application number
GB2541476A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1541471A publication Critical patent/GB1541471A/en
Expired legal-status Critical Current

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
    • F01D21/16—Trip gear
    • F01D21/18—Trip gear involving hydraulic means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Turbines (AREA)

Abstract

The emergency triggering means is arranged in the hydraulic line via which the main valve of a steam turbine is controlled. An inlet line (33) is connected, via an inlet valve (24) which is closed in the rest state by a spring (21), to a chamber (35) which is connected, via an outlet line (37), to the actuating means of the main valve of the turbine. A second branch of the inlet line (33) acts, via an orifice plate (39), on the one hand, on the actuating piston (17) of the inlet valve in the opening direction and, on the other hand, on a disc-shaped outlet valve (50) together with a spring (59) in the closing direction. During normal operation, the inlet (33) is therefore connected to the outlet (37) and the inlet pressure acts on the actuating mechanism of the main valve. In the case of disruption, the second branch of the inlet line is emptied, via a further valve (70), to a return flow (77). The inlet valve (24) closes, and the outlet valve (50) opens the chamber (35) to the return flow (77), with the result that the main valve of the turbine closes rapidly. All three valves in the emergency triggering means are designed as seat valves, and this permits reliable operation. <IMAGE>
GB2541476A 1975-06-20 1976-06-18 Emergency trip device Expired GB1541471A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US58876675A 1975-06-20 1975-06-20

Publications (1)

Publication Number Publication Date
GB1541471A true GB1541471A (en) 1979-03-07

Family

ID=24355213

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2541476A Expired GB1541471A (en) 1975-06-20 1976-06-18 Emergency trip device

Country Status (6)

Country Link
JP (1) JPS521303A (en)
CA (1) CA1044044A (en)
CH (1) CH610996A5 (en)
DE (1) DE2627369B2 (en)
FR (1) FR2314997A1 (en)
GB (1) GB1541471A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108361081A (en) * 2018-04-24 2018-08-03 长兴永能动力科技有限公司 A kind of back pressure type centripetal turbine machine unloading protection equipment

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5249042A (en) * 1975-10-16 1977-04-19 Tsuuring Megane Kk V-type cutter for spectacle frame
JPS58180896U (en) * 1982-05-24 1983-12-02 村山　富則 Forklift fork transfer device
JPS6256598U (en) * 1985-09-25 1987-04-08
EP3088683B1 (en) 2015-04-30 2020-07-29 General Electric Technology GmbH Improved high-flow valve arrangement in steam turbine safety system
KR102644803B1 (en) * 2021-11-17 2024-03-08 한국과학기술원 Method and Apparatus for Electrochemically Extracting Metabolites Using Nanotransfer Printing-based SERS Device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3495501A (en) * 1968-06-04 1970-02-17 Gen Electric Valve operating and emergency closing mechanism
NL7406202A (en) * 1973-05-18 1974-11-20

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108361081A (en) * 2018-04-24 2018-08-03 长兴永能动力科技有限公司 A kind of back pressure type centripetal turbine machine unloading protection equipment
CN108361081B (en) * 2018-04-24 2023-10-27 国网浙江省电力有限公司龙游县供电公司 Unloading protection device for back pressure type centripetal turbine

Also Published As

Publication number Publication date
FR2314997A1 (en) 1977-01-14
DE2627369A1 (en) 1976-12-30
DE2627369B2 (en) 1980-09-18
CA1044044A (en) 1978-12-12
CH610996A5 (en) 1979-05-15
JPS521303A (en) 1977-01-07
FR2314997B1 (en) 1980-05-23
JPS5523323B2 (en) 1980-06-23

Similar Documents

Publication Publication Date Title
US2259809A (en) freeman
GB1541471A (en) Emergency trip device
DE68906979D1 (en) SELF-CLOSING VALVE DEVICE.
GB1240801A (en) Pressure-relief valve
GB1284416A (en) Improvements in fluid stop valves
DE3475823D1 (en) Force actuated pressure control valve
US2919101A (en) Hydraulic valve
US3399690A (en) Over pressure cutoff
GB1114810A (en) An improved control valve device for an hydraulic work circuit
SE8604612D0 (en) DEVICE FOR MIXTURE MIXTURE VALVE
GB832537A (en) Improvements in or relating to fluid control valves
ES411393A1 (en) Pressure relief systems
GB1040211A (en) Automatic dispensing nozzle
GB1112625A (en) Improvements in or relating to flow control valve mechanisms
US642257A (en) Emergency throttle-valve.
GB723679A (en) Improvements in or relating to fluid pressure valves
US1039185A (en) Fluid-pressure apparatus for operating bulkhead and other doors.
JPS57192684A (en) Mechanical operation type shut-off valve
JPS55152978A (en) Weight-closing type guide vane switching device
GB1129665A (en) Improvements in or relating to fluid flow control valves
GB1100942A (en) Improvements in or relating to fluid flow control valves
GB410944A (en) Improvements in flush valves
JPS55152979A (en) Switching device for weight-closing type valve
GB226728A (en) Improvements relating to safety valves
ES163350U (en) Thermoelectric device for ignition protection. (Machine-translation by Google Translate, not legally binding)

Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19940618