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1. (WO2018041494) METHOD FOR RETROFITTING A TURBINE SYSTEM

Pub. No.:    WO/2018/041494    International Application No.:    PCT/EP2017/069129
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Sat Jul 29 01:59:59 CEST 2017
IPC: F01D 17/24
F01D 17/26
F15B 13/044
Applicants: SIEMENS AKTIENGESELLSCHAFT
Inventors: KLASEN, Peter
Title: METHOD FOR RETROFITTING A TURBINE SYSTEM
Abstract:
The invention relates to a method for retrofitting a turbine system with a control unit (1) that has a main actuating drive (2) which is provided for controlling the turbine rotational speed and which comprises a main piston (3), said main piston being hydraulically actuated by means of a fuel oil; a pilot actuating drive (4) which is fluidically connected to the main actuating drive (2) and which comprises a pilot piston (5), said pilot piston being hydraulically actuated by means of a fuel oil and being designed to selectively release or close a fuel oil inlet opening (6) and a fuel oil outlet opening (7) of the main actuating drive (2) for the fuel oil in an alternating manner; and an actuation unit which is fluidically connected to the pilot actuating drive (4) and is designed to supply or draw the fuel oil to or from the pilot actuating drive (4) in order to adjust the pilot piston (5).