TURBINE CONTROL SYSTEM AND TURBINE CONTROL METHOD

摘要

PROBLEM TO BE SOLVED: To provide a turbine control technique capable of suppressing decompressed boiled steam generated from drain from reversely flowing to a turbine without installing a check valve in a bleeding pipe.;SOLUTION: A turbine control system 90 comprises: a condensing unit 11 cooling exhaust air G2 discharged from a turbine 10 into which steam G1 flows and that rotates to make condensed water L1; a bleeding pipe 12 outputting a part of the steam G1 in a course of an adiabatic expansion state within the turbine 10 as bleed air G3; a supplied water heating unit 13 heating the condensed water L1 discharged from the condensing unit 11 by the bleed air G3 output from the bleeding pipe 12; a communication pipe 14 introducing the condensed water L1 retained in the condensing unit 11 and cooling drain L2 obtained by condensing the bleed air G3; and a control unit 16 that controls an introduction amount of the condensed water L1 to the drain L2 by actuating an on-off valve 15 installed in the communication pipe 14.;COPYRIGHT: (C)2015,JPO&INPIT