DE59402992D1 - Hydraulic safety circuit - Google Patents
Hydraulic safety circuitInfo
- Publication number
- DE59402992D1 DE59402992D1 DE59402992T DE59402992T DE59402992D1 DE 59402992 D1 DE59402992 D1 DE 59402992D1 DE 59402992 T DE59402992 T DE 59402992T DE 59402992 T DE59402992 T DE 59402992T DE 59402992 D1 DE59402992 D1 DE 59402992D1
- Authority
- DE
- Germany
- Prior art keywords
- safety circuit
- hydraulic safety
- hydraulic
- circuit
- safety
- 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 - Lifetime
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
- F01D21/20—Checking operation of shut-down devices
-
- 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
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/001—Double valve requiring the use of both hands simultaneously
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Fluid-Pressure Circuits (AREA)
- Control Of Turbines (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4330038A DE4330038A1 (en) | 1993-09-06 | 1993-09-06 | Hydraulic safety circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
DE59402992D1 true DE59402992D1 (en) | 1997-07-10 |
Family
ID=6496925
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4330038A Withdrawn DE4330038A1 (en) | 1993-09-06 | 1993-09-06 | Hydraulic safety circuit |
DE59402992T Expired - Lifetime DE59402992D1 (en) | 1993-09-06 | 1994-08-17 | Hydraulic safety circuit |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE4330038A Withdrawn DE4330038A1 (en) | 1993-09-06 | 1993-09-06 | Hydraulic safety circuit |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0641919B1 (en) |
JP (1) | JP3592377B2 (en) |
DE (2) | DE4330038A1 (en) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004042891B3 (en) * | 2004-08-31 | 2005-10-06 | Hydac System Gmbh | Safety circuit for media-powered consumers and method of operation thereof |
US7874241B2 (en) * | 2005-04-19 | 2011-01-25 | Emerson Process Management Power & Water Solutions, Inc. | Electronically controllable and testable turbine trip system |
US7828008B1 (en) * | 2005-04-19 | 2010-11-09 | SafePlex Systems, Inc. | Online partial stroke testing system using a modified 2004 architecture |
DE102005040039B4 (en) * | 2005-08-23 | 2013-01-31 | Abb Technology Ag | Valve arrangement for controlling a component |
US7409965B2 (en) | 2006-10-16 | 2008-08-12 | Elliott Company | Direct acting hydraulic trip block |
DE102009058408A1 (en) * | 2009-07-09 | 2011-01-13 | Robert Bosch Gmbh | Electrohydraulic control |
DE202011109158U1 (en) | 2011-12-15 | 2012-01-24 | Karl Morgenbesser | Electrohydraulic safety control |
PH12013000162B1 (en) | 2012-06-08 | 2015-03-16 | Emerson process man power and water solutions inc | Electronically controllable and testable turbine trip system with redundant bleed manifolds |
DE102014207669A1 (en) * | 2014-04-23 | 2015-10-29 | Putzmeister Engineering Gmbh | Control system for a hydraulic machine |
CN106414907B (en) * | 2014-06-03 | 2019-03-26 | 福伊特专利有限公司 | The hydraulic control device and steam turbine plant of quick-closing valve for steam turbine |
JP6581499B2 (en) * | 2015-12-25 | 2019-09-25 | 株式会社東芝 | Steam valve drive |
WO2017125247A1 (en) * | 2016-01-22 | 2017-07-27 | Hydac System Gmbh | Safety controller |
DE102016000643A1 (en) * | 2016-01-22 | 2017-07-27 | Hydac System Gmbh | safety control |
CN112648021B (en) * | 2020-11-30 | 2022-12-27 | 华电电力科学研究院有限公司 | Online maintenance and transformation method for steam turbine AST electromagnetic valve activity test |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1212664A (en) * | 1969-01-21 | 1970-11-18 | Schwermaschb Nobas Nordhausen | An automatic hydraulic combining valve arrangement |
SE372055B (en) * | 1973-03-23 | 1974-12-09 | Stal Laval Turbin Ab | |
US3943714A (en) * | 1975-01-23 | 1976-03-16 | The United States Of America As Represented By The Secretary Of The Navy | Fail-safe limit switch stopping system for air motor |
US4001654A (en) * | 1975-07-31 | 1977-01-04 | General Electric Company | Testable protective system |
FR2348523A1 (en) * | 1976-04-16 | 1977-11-10 | Telemecanique Electrique | Pneumatic shift register sequence control - has threshold gate to ensure interlock signal line pressure is below given pressure |
JPS5842699Y2 (en) * | 1977-11-10 | 1983-09-27 | 株式会社小松製作所 | Dual valve failure detection device |
CH636932A5 (en) * | 1979-06-22 | 1983-06-30 | Sulzer Ag | SAFETY CIRCUIT WITH A DOUBLE-ACTING, FLUID-OPERATED SERVO MOTOR. |
DE3040367A1 (en) * | 1980-10-25 | 1982-05-27 | AEG-Kanis Turbinenfabrik GmbH, 8500 Nürnberg | Safety system for steam or gas turbines - uses combined hydraulic and electrical system with pressure switches and magnetic valves |
DE3230056A1 (en) * | 1982-08-12 | 1984-02-16 | Herion-Werke Kg, 7012 Fellbach | Safety control system |
JPS5949305A (en) * | 1982-09-13 | 1984-03-21 | Mitsubishi Heavy Ind Ltd | Multiple hydraulic circuit for turbine preservation apparatus |
DE3340925A1 (en) * | 1983-04-13 | 1984-10-18 | Siemens AG, 1000 Berlin und 8000 München | CONTROL DEVICE FOR CONTROL VALVES OF TURBO MACHINES, ESPECIALLY FOR INDUSTRIAL TURBINES OF HIGH AVAILABILITY |
CH666132A5 (en) * | 1984-07-20 | 1988-06-30 | Bbc Brown Boveri & Cie | DEVICE FOR MONITORING PHYSICAL QUANTITIES IN PLANTS. |
DE3804784A1 (en) * | 1988-02-16 | 1989-08-24 | Huperz Adalbert | Multi-stage valve control |
US5133189A (en) * | 1991-07-15 | 1992-07-28 | Westinghouse Electric Corp. | System and method for individually testing valves in a steam turbine trip control system |
-
1993
- 1993-09-06 DE DE4330038A patent/DE4330038A1/en not_active Withdrawn
-
1994
- 1994-08-17 DE DE59402992T patent/DE59402992D1/en not_active Expired - Lifetime
- 1994-08-17 EP EP94112814A patent/EP0641919B1/en not_active Expired - Lifetime
- 1994-09-05 JP JP21152894A patent/JP3592377B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0641919A1 (en) | 1995-03-08 |
EP0641919B1 (en) | 1997-06-04 |
DE4330038A1 (en) | 1995-03-09 |
JPH0797902A (en) | 1995-04-11 |
JP3592377B2 (en) | 2004-11-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69406442D1 (en) | SAFETY DEVICE | |
DE59402917D1 (en) | HYDRAULIC UNIT | |
DE59405371D1 (en) | Safety switch | |
DE69407625D1 (en) | SAFETY SWITCH | |
FI953353A (en) | safety cabinet | |
DE69505203D1 (en) | Hydraulic circuit | |
DE59402992D1 (en) | Hydraulic safety circuit | |
DE69410330D1 (en) | Hydraulic system | |
DE69417853D1 (en) | Hydraulic power steering | |
DE69417501D1 (en) | Safety device | |
DE69427339D1 (en) | Limiting circuit | |
DK178891A (en) | HYDRAULIC CIRCUIT | |
FI932210A (en) | HYDRAULIC DRIVANORDNING FOER EN FARTYGSLASTLUCKA | |
FI942126A0 (en) | Safety device | |
DE69410750D1 (en) | Hydraulic power steering | |
DE69508316D1 (en) | Hydraulic circuit | |
DE69410836D1 (en) | Circuit | |
DE69406742D1 (en) | Hydraulic power steering | |
DE59603076D1 (en) | HYDRAULIC CIRCUIT | |
DE69412280D1 (en) | SAFETY ZERO SETUP | |
DE69403944D1 (en) | Safety switch | |
KR950009175U (en) | Electronic safe | |
NO932111D0 (en) | SAFETY LINE | |
NO933683D0 (en) | SAFETY LINE | |
NO930805D0 (en) | SAFETY DEVICES |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: ALSTOM, PARIS, FR |
|
8328 | Change in the person/name/address of the agent |
Free format text: ROESLER, U., DIPL.-PHYS.UNIV., PAT.-ANW., 81241 MUENCHEN |