F - Mech Eng,Light,Heat,Weapons – 01 – K
Patent
F - Mech Eng,Light,Heat,Weapons
01
K
F01K 7/16 (2006.01) F01D 25/10 (2006.01) F01K 13/02 (2006.01)
Patent
CA 2625470
The invention relates to a method for heating a steam turbine (8) comprising a medium-pressure turbine section (2) and/or a low-pressure turbine section (6), the discharge end of the medium-pressure turbine section (2) being provided with a catchment device (7). According to the inventive method, steam penetrating the medium-pressure turbine section (2) during a starting process is retained at an outlet (3) by means of the catchment device (7) in such a way that the pressure of the steam increases in the medium-pressure turbine section (2). The steam that is discharged from the medium-pressure turbine section (2) is retained, thus increasing the pressure and the temperature of the steam. Heat transfer from the steam to the thick-walled parts located on the medium-pressure turbine section (2) and the shaft of the medium-pressure turbine section is augmented, thus reducing the starting time of the steam turbine.
L'invention concerne un procédé pour chauffer une turbine à vapeur (8) dotée d'une turbine moyenne pression (2) et/ou d'une turbine basse pression (4), la turbine moyenne pression (2) comportant côté sortie un dispositif de barrage (7). Pendant le processus de démarrage, la vapeur traversant la turbine moyenne pression (2) est retenue au niveau d'une sortie (3) par un dispositif de barrage (7) de manière à augmenter la pression de la vapeur dans la turbine moyenne pression (2). La retenue de la vapeur sortant de la turbine moyenne pression (2) fait augmenter sa pression et sa température. La transmission thermique de la vapeur aux éléments à parois épaisses de la turbine moyenne pression (2) et à l'arbre de ladite turbine est accrue, diminuant ainsi le temps de démarrage de la turbine.
Gobrecht Edwin
Peters Karsten
Aktiengesellschaft Siemens
Smart & Biggar
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