公开(公告)号：JPH0861095A

公开(公告)日：1996-03-05

申请号：JP20887395

申请日：1995-08-16

Applicant: ABB MANAGEMENT AG

Inventor： KURAUSU HORINGAA ,  GERUHARUTO MIYURAA

IPC: F02C7/228 ,  F02C9/34 ,  F02C9/46 ,  F23R3/28 ,  F23R3/34

Abstract: PROBLEM TO BE SOLVED: To dispense with replacement of an existing control valve that requires a long time and high cost in a method for controlling the rotational speed of a gas turbine during load disconnection. SOLUTION: Some of premixing burners are used as idling premixing burners 11a, and the rest are operated only as main burners, during load disconnection, the main burners are shut off by means of the burner control valve 6, and the idling premixing burners 11a are supplied with fuel via a regulated bypass line 3.