Global Patent Index - EP 0602040 B1

EP 0602040 B1 19950301 - COOLING A LOW-PRESSURE STEAM TURBINE IN VENTILATION MODE.

Title (en)

COOLING A LOW-PRESSURE STEAM TURBINE IN VENTILATION MODE.

Title (de)

KÜHLUNG EINER NIEDERDRUCK-DAMPFTURBINE IM VENTILATIONSBETRIEB.

Title (fr)

REFROIDISSEMENT D'UNE TURBINE A VAPEUR BASSE PRESSION EN MODE VENTILATION.

Publication

EP 0602040 B1 19950301 (DE)

Application

EP 92909172 A 19920507

Priority

  • DE 4129518 A 19910906
  • DE 9200373 W 19920507

Abstract (en)

[origin: WO9305276A1] The invention relates to a process for cooling a low-pressure steam turbine (1) in ventilation mode. The low-pressure steam turbine (1) has a closable inlet (2) through which steam can be admitted in the power mode and blocked in the ventilation mode, an outlet (3) communicating with a condenser (5) for condensing the steam into a condensate and a tapping (4) between the inlet (2) and the outlet (3). A tap line (6) is connected to the tapping (4) to evacuate steam and/or condensate in power mode. According to the invention, steam is supplied via a steam by-pass (12) to the tap line (6) to cool the low-pressure steam turbine (1) in ventilation mode. Condensate is also preferably supplied to the tap line (6). According to the invention, the cooling effect in the low-pressure steam turbine (1) is largely restricted to the heavily loaded components in ventilation mode and the cooling media are taken from resources which in any case, are available.

IPC 1-7

F01D 25/12; F01K 13/02

IPC 8 full level

F01D 25/12 (2006.01); F01K 7/38 (2006.01); F01K 13/00 (2006.01); F01K 13/02 (2006.01)

CPC (source: EP US)

F01D 25/12 (2013.01 - EP US); F01K 13/025 (2013.01 - EP US)

Designated contracting state (EPC)

CH DE ES FR GB IT LI SE

DOCDB simple family (publication)

DE 4129518 A1 19930311; CZ 283638 B6 19980513; CZ 48894 A3 19940518; DE 59201560 D1 19950406; EP 0602040 A1 19940622; EP 0602040 B1 19950301; ES 2069997 T3 19950516; JP 3093267 B2 20001003; JP H06510347 A 19941117; PL 169627 B1 19960830; RU 2085751 C1 19970727; UA 27766 C2 20001016; US 5490386 A 19960213; WO 9305276 A1 19930318

DOCDB simple family (application)

DE 4129518 A 19910906; CZ 48894 A 19920507; DE 59201560 T 19920507; DE 9200373 W 19920507; EP 92909172 A 19920507; ES 92909172 T 19920507; JP 50845892 A 19920507; PL 30257092 A 19920507; RU 94019340 A 19920507; UA 93004008 A 19920507; US 20679894 A 19940307