“Hydraulic butterfly Valve: Working principle, structure and application analysis”

“Hydraulic butterfly Valve: Working principle, structure and application analysis”

Hydraulic butterfly valve is a commonly used fluid control valve, widely used in petroleum, chemical, electric power, urban water supply and other fields. This paper will analyze the working principle, structure and application of the hydraulic butterfly valve.

First, the working principle of the hydraulic butterfly valve

The working principle of the hydraulic butterfly valve is to control the opening and closing of the valve by controlling the flow rate and pressure of the liquid. When the pressure of the control medium acts on the control device of the valve, the valve begins to move. When the valve is fully open, the oil flows directly and the liquid flows through the pipeline. When the valve is partially open, the flow rate of the liquid passing through the valve decreases, which in turn causes the pressure in the pipe to increase. When the valve is completely closed, the pressure of the liquid in the pipe reaches its maximum. In this state, the liquid flow through the valve will be strictly controlled, so as to achieve the adjustment of flow and pressure.

Second, the structure of the hydraulic butterfly valve

1. Valve body: The valve body of the hydraulic butterfly valve is usually composed of two metal disks and sealing rubber rings.

2. Controller: The control instrument of the hydraulic butterfly valve is a device that controls the opening and closing of the valve, usually composed of a hydraulic controller, a positioner, an electric regulator, a servo valve, etc.

3. Pressure relief device: In order to ensure the stable operation of the hydraulic system in the pipeline, the hydraulic butterfly valve is also equipped with a pressure relief device to maintain the balance and stability of the hydraulic pressure in the pipeline.

Third, the application of hydraulic butterfly valve

The hydraulic butterfly valve is often used in the regulating valve of various hydraulic systems, which can realize the adjustment of the flow rate and pressure of the fluid in the pipeline to achieve the purpose of automatic control. In petroleum, chemical, electric power, urban water supply and other industries, the hydraulic butterfly valve is widely used. For example, in the petroleum industry, hydraulically controlled butterfly valves are used to control the flow and pressure of fluids in oil-immersed electric power devices, and to achieve fluid regulation and control. In the chemical industry, the hydraulic butterfly valve is used to regulate the flow and pressure of the fluid in the chemical system and to automatically control the chemical process. In the urban water supply system, the hydraulic butterfly valve is used to control the water flow and water pressure to achieve automatic control of the water supply system.

In general, the hydraulic butterfly valve is a powerful fluid control valve, with efficient, stable and reliable characteristics, widely used in various fields. In the future, the hydraulic butterfly valve will continue to play its advantages and become an important equipment for realizing fluid control automation.