Hydropower Station Type Automatic Pressure Maintaining Hydraulic Control Butterfly Valve

Size: 600-8000mm

Material: ductile iron, carbon steel or low alloy structure

Features:

Hydropower station type automatic pressure maintaining hydraulic control butterfly valve is based on advanced technology at home and abroad, after continuous improvement and perfection, it integrates mechanical, electrical, and hydraulic. It is currently the most advanced imported hydraulic turbine control equipment in China. This product is widely used in the inlet of hydraulic turbines of medium and small hydropower stations. It can operate automatically according to the program, as a valve that connects and cuts off the water flow, prevents the turbine from running away, and reduces water hammer.

The valve is opened by hydraulic drive. The oil pressure can reach 16MPa, which reduces the volume of the swing cylinder. Lift the heavy hammer while opening the valve, and the reliable mechanical locking device is automatically put in after the valve is fully opened. After receiving the valve-closing signal, the solenoid valve will act to automatically release the lock, and will automatically close according to the program under the action of the heavy hammer torque. It does not require a power oil source and cancels the energy storage tank, which is simple and reliable, and greatly simplifies the hydraulic system.

The valve uses a double eccentric valve plate. The valve shaft installed horizontally is raised a certain distance on the center line of the pipeline, so that the water-facing area of the lower half of the valve plate is larger than the upper half. When the valve is closed in an emergency, the power water can be used to help the valve close to reduce the weight of the hammer. The hydraulic device with simple structure and small volume. The electric automatic control box, the swing cylinder, and the control oil used to be very compactly integrated with the valve, without the need for additional configuration by the user, greatly reducing the cost and saving space.

The valve is equipped with a hand pump and a manual valve closing device, which can manually open and close the valve during maintenance or without electricity. The valve opening and closing time can be adjusted. It can meet the needs of adjustment and maintenance and ensure the safe and reliable operation of the turbine unit. The electric automatic control box for leucorrhea can realize on-site, remote and automatic control operations, meeting the requirements of "unmanned and few people on duty" of the power station.