Solenoid valve silencer What is the function of the device
The solenoid valve silencer mainly has two functions. One is to silence the noise, otherwiseSolenoid valve The sound is too loud when exhausting, especially when there are many solenoid valves. Secondly, it can prevent dust and other small particles in the environment. Entering the solenoid valve may cause the movement of the solenoid valve core to be blocked, thereby reducing the service life of the solenoid valve.
Working principle of solenoid valve silencer
Solenoid valveThe muffler principle is to use the appropriate combination of cavity and tube , to achieve two functions to silence the sound: one is to use the sudden change of the pipe cross section (that is, the change of the acoustic impedance) to make the sound waves propagating along the pipe reflect back towards the sound source, so that the sound energy is reflected back to the original place;the other is to use several The reflection of an interface causes the first forward-propagating sound wave to return to the origin, and then turn back and propagate forward again. This point merges with the second forward-propagating sound wave that has not been reflected, and the two are different in amplitude. They are equal and differ in phase by odd multiples of 180 degrees, thus interfering with each other and canceling out.
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