Electric regulating valve is a kind of valve that uses electric power to regulate the medium flow by changing the gap between the valve core and the valve seat. It is widely used in industrial production in petroleum, chemical industry, metallurgy, construction, electric power and other fields. This article will introduce the working principle and performance characteristics of electric regulating valve from a professional point of view.
First, the working principle
1. Structure composition
Electric regulating valve is mainly composed of body, spool, seat, electric actuator and sensor. Among them, the flow rate of the medium is adjusted through a certain gap between the valve core and the valve seat.
2. How it works
The working principle of the electric regulating valve can be simply summarized as follows: the sensor converts the change of fluid flow, pressure, temperature and other parameters into electrical signals, which are transmitted to the control system. According to the deviation between the set value and the actual value, the control system changes the gap between the valve core and the seat by driving the electric actuator, so as to adjust the flow rate of the medium, so that the actual value is consistent with the set value.
Second, performance characteristics
1. High adjustment accuracy
The electric regulating valve adopts a closed-loop control system, which can be accurately adjusted according to the deviation between the set value and the actual value, and has a high adjustment accuracy.
2. Fast response speed
The electric regulating valve is driven by electricity, and the actuator has a large driving force, which can realize rapid opening and closing and precise adjustment, and meet the rapid response needs of flow control in industrial production.
3. High reliability
The parts of the electric regulating valve are mostly standardized products, which are easy to repair and replace. At the same time, the electric actuator has the protection function of overload, overheating, power failure, etc., which improves the reliability of the valve.
4. You’re adaptable
Electric regulating valves can be widely used in the flow regulation of various media, such as gas, liquid, steam, etc. At the same time, suitable materials and sealing forms can be selected according to different working conditions to improve the adaptability of the valve.
5. Energy saving and environmental protection
Compared with the traditional manual control valve, the electric control valve has a higher degree of automation, can achieve remote control and centralized management, and reduce labor costs. At the same time, the electric regulating valve can precisely control the flow, reduce energy waste, and is conducive to energy saving and environmental protection.
Iii. Summary
The electric control valve has the performance characteristics of high adjustment accuracy, fast response speed, high reliability, strong adaptability, energy saving and environmental protection, and has become an indispensable flow control equipment in industrial production. Understanding the working principle and performance characteristics of the electric regulating valve is helpful to better select and use the electric regulating valve to ensure the safe, reliable and efficient operation of the fluid conveying system.
Post time: Sep-08-2023
