必一运动

Functional advantages

Hydraulic servo system (EH) of rotary equipment is an indispensable control system for steam turbines, water turbines, gas turbines and so on. EH system uses pressure oil as the medium to transmit and amplify the regulating signal, and realizes the accurate control and protection function of fluid medium by controlling the valve opening of oil motor.

EH system mainly includes oil supply device (oil pump, oil tank), oil pipeline and accumulator, actuator (oil motor), emergency cut-off system and so on. The oil supply system supplies pressure oil to the system. The actuator responds to the command signal of the DEH control system and controls the position of the oil motor to adjust the opening of each servo valve, so as to ensure the safe and reliable operation of the turbine equipment.

System structure diagram

Industry application

• 汽轮机

• 水轮机

• 燃气轮机

Data download

Typical performance