The principle of the solenoid valve is like the kind of faucet that will automatically save water. When you press it, the water will come out. After a while, the water flow will automatically close. The pulse solenoid valve is when you turn it on, the valve will open, and the time will be opened. You can adjust it yourself, and when the time comes, it will close itself. The interval at which the pulse is controlled by plc should be determined based on the rated gas pressure recovery time.
The working principle of the pulse solenoid valve: the coil of the solenoid valve is input into the positive pulse signal through the wire, and the working magnetic flux generated by the coil is used to make the core move and open the valve. When the forward pulse signal input is stopped, the moving core is released, and the moving core returns to the initial state under the action of the spring force, and the valve is closed.
The pulse solenoid valve is converted into mechanical pulsation by the pulse of the electric appliance, so that the powerful energy of the pulsating gas becomes a momentum and a large impulse is released in a short time. In addition, there is a self-holding type, which can be maintained after stopping the input of the forward pulse or after the power is turned off. It is necessary to input the negative pulse signal to be able to be bit.
Uses: Generally installed in the main oil circuit or damper back pressure oil circuit, reduce the oil pressure at the moment of automatic gear upshift and downshift of the transmission or when the lockup clutch locks and unlocks the movement to reduce the oil pressure The gears and locks unlock the impact, making the vehicle run more balanced. The function of the pulse solenoid valve is to control the oil pressure in the oil circuit.
The so-called working principle of the solenoid valve, the solenoid valve has a closed cavity, and there are through holes at different positions, each hole leads to a different oil pipe, the valve is in the middle of the cavity, and the two sides are two electromagnets, which side The magnet coil energizes the valve body to which side, and controls the movement of the valve body to block or leak different oil drain holes, and the oil inlet hole is normally open, and the hydraulic oil enters different oil drain pipes. Then, the pressure of the oil pushes the piston of the oil just, and the piston drives the piston rod, and the piston cymbal drives the mechanical device to move. This controls the mechanical motion by controlling the current of the electromagnet.
Note: The above is the general principle of the solenoid valve. In fact, according to the temperature, pressure and other conditions flowing through the medium, such as the pressure and self-flow state of the pipeline, there is no pressure, and the working principle of the solenoid valve is different. For example, in the self-flow state, zero pressure start is required, that is, after the power is turned on, the coil is entirely sucked up by the brake body. The solenoid valve with a pressure state is a pin that is inserted into the brake body after the coil is energized, and the brake body is jacked up by the pressure of the fluid itself. The difference between the two methods is that the self-flowing solenoid valve, because the coil has to suck up the entire gate body, so the solenoid valve with a large volume and pressure state only needs to suck the pin, so the volume can be compared. small.
Vet Ultrasound,Ultrasound Machine,Ultrasound Scanner
Medsinglong Medical Equipment Co., Ltd. , http://www.gzultrasound.com