Patent · US Active

Method for operating a multi-step steam turbine

US8713941B2 · kind B2 · utility

2Cited by

6References

9Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Stefan Glos · Recklinghausen, DE
Matthias Heue · Bochum, DE
Ernst-Wilhelm Pfitzinger · Wetter (Ruhr), DE
Norbert Pieper · Olfen, DE

Key dates

Filing date	Feb 15, 2008
Grant date	May 6, 2014
Priority date	—
Expiry date	Dec 24, 2030

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2260/232
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for operating a multi-step steam turbine operating in high temperature conditions is provided. The rotor is embodied as a welded construction including a first component and a second component. A coolant is supplied to the steam turbine after an intermediate state when the steam turbine is in the light-load or no-load phase. As a result, the thermal loads in the outflow area of the steam turbine are reduced.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.