The hydraulic control system exists in various forms, including the low-pressure turbine oil control system, the high pressure anti-wear oil control system, and the high-pressure fire-resistant oil control system.
Low Pressure Turbine Oil Control System (EH-HLP)
About Low Pressure Turbine Oil Control System (EH-HLP)
The low pressure turbine oil control system retains the power oil source from the original hydraulic control system, which is the main oil pump supply method. The control valve actuatoris converted to an electro-hydraulic servo actuator. The control valve is managed through the original valve mechanism (cam or lift plate). The valve position command signal generated by the DEH system is processed through the servo amplifier board and the electro-hydraulic converter valve, forming the control oil pressure to the throttle valve, thereby actuating the servo motor. The actuator stroke is measured by a displacement sensor and fed back to the input of the servo amplifier board, ensuring it matches the valve position command. This allows the actuator stroke to be fully controlled by the DEH system.
High Pressure Anti-Wear Oil Control System (EH-ZRS)
About High Pressure Anti-Wear Oil Control System (EH-ZRS)
The high-pressure anti-wear oil control system includes an integrated independent oil source, providing a qualified high-pressure working oil source for the normal operation of the entire hydraulic control system. The working fluid uses environmentally friendly anti wear hydraulic oil with turbine oil characteristics, offering the same control precision and fire-resistant properties. This system features high positioning accuracy, large driving force, stepless speed regulation, and rapid shutdown protection, making it highly cost effective and suitable for small to medium-sized units. Its main components include an independent oil source unit (oil station, accumulator, anti-wear hydraulic oil, etc.), a servo actuator (servo motor, servo valve, OPC solenoid directional valve, etc.), a trip control system, and an oil pipeline system (oil pipelines and various valves).
System Features
· High precision: FIndependent oil source pressure of 14.0 MPa, and high output stiffness for an actuator
· Reliability: Anti-wear hydraulic oil, no environmental pollution, redundant configuration of the oil supply pump in the oil supply system, and two sets of oil pumps mutually reserved
· Availability: 100% continuous adjustable work, and closed-loop servo control system
· Rapidity: Dynamic response time < 0.3s, and fast closing time < 0.2s
· Convenience: Actuator that is compact in size and easy to install, disassembly of the actuator not required for annual maintenance, and replacing only the seals of the hydraulic components on the pump station and actuator
High Pressure Fire-Resistant Oil Control System (EH-HHP)
About High Pressure Fire-Resistant Oil Control System (EH-HHP)
The high-pressure fire-resistant oil control system includes an integrated independent oil source, providing a qualified high-pressure working oil source for the normal operation of the entire hydraulic control system. The working fluid uses phosphate ester fire resistant hydraulic oil, offering high positioning accuracy, large driving force, stepless speed regulation, and rapid shutdown protection, making it suitable for large units. Its main equipment includes an independent oil source unit (oil station, regeneration unit, accumulator, fire-resistant oil, etc.), a servo actuator (actuator, servo valve, OPC solenoid directional valve, etc.), a trip control system, and an oil pipeline system (oil pipelines and various valves).
System Features
· High precision: Independent oil source pressure of 14.0 MPa, and high output stiffness for an actuator
· Reliability: Redundant configuration of the oil supply pump in the oil supply system, and two sets of oil pumps mutually reserved
· Rapidity: Dynamic response time < 0.3s, and fast closing time < 0.2s
· Oil requirement: Phosphoric acid grease resistant fuel
· Maintenance requirement: Regular replacement required for short life of the anti-fuel oil, regular testing required for oil quality, filtration, purification, replacement, and maintenance of equipment
Company Profile
Audited Supplier 
){kind=link}