The electric gate valve
produced is connected by an electric electric actuator and a gate valve, and becomes an electric valve after installation and adjustment. The electric valve uses electromagnetic energy as the driving force to connect the gate valve of the electric electric actuator driver to maintain the power switch of the gate valve and adjust the posture. Furthermore, it exceeds the purpose of power switch or adjustment of pipeline materials. The driver of the electric valve is generally a motor, the opening or closing posture must be analog input for a certain period of time, which can be adjusted. More resistant to shocks of working voltage. Relays are quick-open and quick-close, and are generally used in areas where the total flow and working pressure are small, and the switching frequency of the power supply is high; the reverse is true for electric valves. The opening degree of the electric valve valve can be controlled, and the conditions are open, closed, semi-closed and semi-closed, and can control the total flow of substances in the pipeline, but the relay cannot meet this requirement. The three-wire electric valve has three lines, F/R/N, F means the control line of the forward position (or open position), R means the control line of the reverse position (or close position), and N means the ground line. The relay is a type of electric valve; it uses the electromagnetic field created by the magnet coil to drive the valve core, thereby changing the conduction of the oil circuit board, and the solenoid coil turns off the power, and the valve core returns with the help of the yellow working pressure. Electric gate valve is a widely used valve, mainly used in the analog quantity adjustment of pipeline medium flow in liquid, gas and wind systems, and it is AI control. In the control of large valves and wind systems, electric valves can also be used for two-position switch control. Let's take a look at the principle of electric gate valve together. The operating principle of the electric gate valve is that the electric gate valve is usually connected by an electric actuator and the valve, and becomes an electric valve after installation and debugging. The electric gate valve uses electric energy as power to turn on the electric actuator to drive the valve to realize the opening and closing and adjustment of the valve. So as to achieve the purpose of switching or adjusting the pipeline medium. The working nature of the electric gate valve: The electric valve is generally driven by a motor, which is relatively resistant to voltage shocks. Solenoid valves are fast-opening and fast-closing. They are generally used in places where small flow and small pressure are required, and the electric valve is vice versa. The opening degree of the electric valve valve can be controlled, and the state is open, closed, half-open and half-closed, which can control the flow of the medium in the pipeline, but the solenoid valve cannot meet this requirement. The opening and closing part of the electric gate valve is a gate, and the movement direction of the gate is perpendicular to the direction of the fluid, which cannot be adjusted or throttled. The gate has two sealing surfaces. The two sealing surfaces of the most commonly used model gate valve form a wedge. The wedge angle varies with valve parameters, usually 5°, and 2°52' when the medium temperature is not high. The gate of the wedge-type electric gate valve can be made into a whole, called a rigid gate; it can also be made into a gate that can produce slight deformation to improve its manufacturability and make up for the deviation of the sealing surface angle during the processing. The gate is called an elastic gate. When the gate valve is closed, the sealing surface can only rely on the medium pressure to seal, that is, relying on the medium pressure to press the sealing surface of the gate to the valve seat on the other side to ensure the sealing of the sealing surface, which is self-sealing. Most electric gate valves adopt forced sealing, that is, when the valve is closed, the gate must be forced to the valve seat by external force to ensure the tightness of the sealing surface. The gate valve of the gate valve moves linearly with the valve stem, which is called the lifting stem gate valve, also called the rising stem gate valve. Usually there is a trapezoidal thread on the lifting rod, through the nut on the top of the valve and the guide groove on the valve body, the rotary motion is changed into linear motion, that is, the operating torque is turned into operating thrust. When the valve is opened, when the lifting height of the gate is equal to 1:1 times the valve diameter, the fluid passage is completely unblocked, but this position cannot be monitored during operation. In actual use, the apex of the valve stem is used as a mark, that is, the position where it cannot be opened, as its fully open position. In order to take into account the locking phenomenon due to temperature changes, it is usually opened to the apex position, and then back 1/2-1 circle, as the position of the fully open valve. Therefore, the fully open position of the valve is determined by the position of the gate, that is, the stroke. In some gate valves, the stem nut is set on the gate, and the rotation of the handwheel drives the rotation of the valve stem to lift the gate. This kind of valve is called a rotating stem gate valve, or a dark-stem electric gate valve.
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