Global Patent Index - EP 2129879 A2

EP 2129879 A2 20091209 - METHOD FOR OPERATING A MULTI-STEP STEAM TURBINE

Title (en)

METHOD FOR OPERATING A MULTI-STEP STEAM TURBINE

Title (de)

VERFAHREN ZUM BETREIBEN EINER MEHRSTUFIGEN DAMPFTURBINE

Title (fr)

PROCÉDÉ DE FONCTIONNEMENT D'UNE TURBINE À VAPEUR À PLUSIEURS ÉTAGES

Publication

EP 2129879 A2 20091209 (DE)

Application

EP 08709020 A 20080215

Priority

  • EP 2008051834 W 20080215
  • EP 07003922 A 20070226
  • EP 08709020 A 20080215

Abstract (en)

[origin: WO2008104465A2] The invention relates to a method for operating a multi-step steam turbine (4, 5, 6) that is suitable for high temperatures. The rotor (27) is embodied as a welded construction having a first component (33) and a second component (34) and a coolant is supplied to the steam turbine (4, 5, 6) after an intermediate stage (14) when said steam turbine (4, 5, 6) is in the light-load or no-load phase. As a result, the thermal loads in the outflow area (32) of the steam turbine (4, 5, 6) are reduced.

IPC 8 full level

F01D 25/12 (2006.01); F01K 7/16 (2006.01); F01K 13/00 (2006.01); F01K 13/02 (2006.01)

CPC (source: EP US)

F01D 5/28 (2013.01 - EP US); F01D 25/12 (2013.01 - EP US); F01D 25/14 (2013.01 - EP US); F01D 25/26 (2013.01 - EP US); F01K 7/16 (2013.01 - EP US); F01K 13/006 (2013.01 - EP US); F01K 13/02 (2013.01 - US); F01K 13/025 (2013.01 - EP US); F05D 2220/31 (2013.01 - EP US); F05D 2260/232 (2013.01 - EP US)

Citation (search report)

See references of WO 2008104465A2

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2008104465 A2 20080904; WO 2008104465 A3 20090129; CN 101622424 A 20100106; CN 101622424 B 20130619; EP 1998014 A2 20081203; EP 1998014 A3 20081231; EP 2129879 A2 20091209; JP 2010519452 A 20100603; JP 5066194 B2 20121107; US 2011005224 A1 20110113; US 2014150431 A1 20140605; US 8713941 B2 20140506

DOCDB simple family (application)

EP 2008051834 W 20080215; CN 200880006216 A 20080215; EP 07003922 A 20070226; EP 08709020 A 20080215; JP 2009550265 A 20080215; US 201414176419 A 20140210; US 52834908 A 20080215