Abstract：This paper analyzes the causes of pressure switch misoperation caused by the high exhaust pressure protection of gas turbine no.1 in HuiZhou LNG power plant, finds out the fault reasons, combines theoretical knowledge and carries out tests in laboratory simulation. In order to prevent the occurrence of similar incidents, improvement measures are proposed to guarantee the safe and stable operation of the unit, and to provide reliable basis and reference for the maintenance and repair of equipment and technical transformation of the same type of unit.
2020, Vol. 30 