EP 1881164 A1 20080123 - Device for regulating the intercept valves of a steam-turbine plant
Title (en)
Device for regulating the intercept valves of a steam-turbine plant
Title (de)
Vorrichtung für das Regulieren von Absperrventilen einer Dampfturbinenanlage
Title (fr)
Dispositif pour la régulation des vannes d'arrêt d'une installation à turbines à vapeur
Publication
Application
Priority
EP 06425509 A 20060721
Abstract (en)
A device (4) for regulating the intercept valves (22) of a steam-turbine plant (2) supplied with a boiler (10) with low capacity of thermal modulation has: a hydraulic circuit (26), designed to supply a linear hydraulic actuator (34) for actuation of a system of levers (37) for opening and closing the intercept valves (22) simultaneously; a hydraulic power distributor (33), designed to supply the linear hydraulic actuator (34) selectively; and a control device (32), designed to control the hydraulic power distributor (33) as a function of a signal (SM) correlated to the mode of operation of the steam-turbine plant (2) for partializing without solution of continuity opening of the intercept valves (22) between a position of complete closing and a position of maximum opening.
IPC 8 full level
F01K 7/16 (2006.01); F01K 23/16 (2006.01)
CPC (source: EP)
F01K 7/165 (2013.01); F01K 23/16 (2013.01)
Citation (search report)
- [X] US 4598551 A 19860708 - DIMITROFF JR VLADIMIR T [US], et al
- [X] US 5203160 A 19930420 - OZONO JIRO [JP]
- [X] DE 10042317 A1 20020314 - ALSTOM POWER NV [NL]
- [X] EP 0178617 A1 19860423 - HITACHI LTD [JP]
- [X] US 5361585 A 19941108 - WESTPHAL BERND A K [US], et al
- [X] JP S62101809 A 19870512 - HITACHI LTD
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
DOCDB simple family (application)
EP 06425509 A 20060721