ZA913825B - Hydraulic safety and regulating system - Google Patents

Hydraulic safety and regulating system

Info

Publication number
ZA913825B
ZA913825B ZA913825A ZA913825A ZA913825B ZA 913825 B ZA913825 B ZA 913825B ZA 913825 A ZA913825 A ZA 913825A ZA 913825 A ZA913825 A ZA 913825A ZA 913825 B ZA913825 B ZA 913825B
Authority
ZA
South Africa
Prior art keywords
safety
hydraulic safety
regulating system
monitored
hydraulic
Prior art date
Application number
ZA913825A
Inventor
Edi Burch
Burch Edi
Heinz Frey
Frey Heinz
Original Assignee
Asea Brown Boveri
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 Asea Brown Boveri filed Critical Asea Brown Boveri
Publication of ZA913825B publication Critical patent/ZA913825B/en

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B9/00—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member
    • F15B9/02—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type
    • F15B9/04—Servomotors with follow-up action, e.g. obtained by feed-back control, i.e. in which the position of the actuated member conforms with that of the controlling member with servomotors of the reciprocatable or oscillatable type controlled by varying the output of a pump with variable capacity
    • 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
    • F01D17/00—Regulating or controlling by varying flow
    • F01D17/20—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted
    • F01D17/22—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical
    • F01D17/26—Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted the operation or power assistance being predominantly non-mechanical fluid, e.g. hydraulic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/1022—Fluid cut-off devices automatically actuated

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Control Of Turbines (AREA)
  • Power Steering Mechanism (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

This hydraulic safety and control system for the supply of steam to a turbine has a rapid-closure valve and a steam governing valve (4, 3) and a pipe system monitored by a safety discharge unit (22). The intention is to provide a hydraulic safety and control system which is simple to construct and has a markedly reduced number of possible leakage points. This is achieved by the fact that the monitored pipe system is designed both as the power-oil supply system and as the safety-oil system. <IMAGE>
ZA913825A 1990-06-18 1991-05-21 Hydraulic safety and regulating system ZA913825B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2023/90A CH683017A5 (en) 1990-06-18 1990-06-18 An electrohydraulic actuator.

Publications (1)

Publication Number Publication Date
ZA913825B true ZA913825B (en) 1992-03-25

Family

ID=4224109

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA913825A ZA913825B (en) 1990-06-18 1991-05-21 Hydraulic safety and regulating system

Country Status (14)

Country Link
EP (1) EP0462387B1 (en)
JP (1) JPH04231608A (en)
KR (1) KR920001089A (en)
AT (1) ATE113693T1 (en)
AU (1) AU656319B2 (en)
BR (1) BR9102488A (en)
CA (1) CA2041061A1 (en)
CH (1) CH683017A5 (en)
CZ (1) CZ283088B6 (en)
DE (1) DE59103398D1 (en)
DK (1) DK0462387T3 (en)
PL (1) PL165643B1 (en)
RU (1) RU2039297C1 (en)
ZA (1) ZA913825B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103420308B (en) * 2013-07-01 2015-07-29 任丘市博科机电新技术有限公司 A kind of hydraulic disc type brake device Hydraulic Station and control method
US10900504B2 (en) * 2015-12-31 2021-01-26 Westinghouse Electric Company Llc Hydraulic apparatus and hydraulic appliance usable therein
RU2670470C1 (en) * 2017-11-13 2018-10-23 Акционерное общество "Проектно-конструкторское бюро "Автоматика" Control hydraulic system of steam turbine valves
CN112160803B (en) * 2020-10-20 2022-12-09 中广核核电运营有限公司 Method for flushing regulating oil system of steam turbine of nuclear power station

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH239817A (en) * 1941-04-28 1945-11-15 Sa Ansaldo Device for starting a steam turbine.
US2658484A (en) * 1949-03-29 1953-11-10 Allis Chalmers Mfg Co Throttle valve operating mechanism
DE1551206A1 (en) * 1966-02-03 1970-01-15 Siemens Ag Control for steam turbine plant, especially with reheating
DE2928737A1 (en) * 1979-07-17 1981-01-29 Sack Gmbh HYDRAULIC CONTROL WITH TUBE BREAKAGE PROTECTION FOR A DOUBLE-PRESSURIZABLE DRIVE CYLINDER FOR POSITIONING, ESPECIALLY A DRIVED GUIDE ROLL IN THE CONTINUOUS GUIDE OF A CONTINUOUS CASTING SYSTEM
EP0127027B1 (en) * 1983-05-30 1988-03-09 BBC Brown Boveri AG Electro-hydraulic actuator for turbine valves

Also Published As

Publication number Publication date
AU656319B2 (en) 1995-02-02
EP0462387B1 (en) 1994-11-02
DK0462387T3 (en) 1995-04-03
CH683017A5 (en) 1993-12-31
RU2039297C1 (en) 1995-07-09
EP0462387A1 (en) 1991-12-27
PL165643B1 (en) 1995-01-31
CS185491A3 (en) 1992-01-15
DE59103398D1 (en) 1994-12-08
CA2041061A1 (en) 1991-12-19
KR920001089A (en) 1992-01-30
AU7717891A (en) 1991-12-19
CZ283088B6 (en) 1998-01-14
ATE113693T1 (en) 1994-11-15
PL290624A1 (en) 1992-07-13
BR9102488A (en) 1992-01-21
JPH04231608A (en) 1992-08-20

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