The Principle Of Sprayer Why Does The Water Spray Through The Nozzle Form A Mist?

Mist is actually water droplets. There are four types of existing sprayers:

One uses the Bernoulli principle. The Bernoulli principle says that in the same fluid, the flow rate is large, the pressure is small; the flow rate is small, the pressure is strong. The fluid will automatically flow from high pressure to low pressure. When passing through the trigeminal pipe (specific The picture can’t be drawn, I understand it myself), the low-speed flowing water flows to the high-speed flowing air. The water is torn by the high-speed air into droplets and droplets. After the speed gradually increases, it becomes drop by drop). These small water droplets become fog after spraying out.

The second method is to press water into a thin tube to cause high-speed water flow. The high-speed water flow breaks into small droplets when it hits an obstacle. The situation is like turning the faucet to block it with your fingers. Household sprayers often use this structure, and the cost is Low.

　　 The third type is to charge the water (water is a dielectric) and use the same kind of charge to repel each other to divide the water into droplets. This method has very small water droplets. The same principle is also used to paint cars.

The fourth type is ultrasonic atomization. Vibration can cause "waves" on the water surface. The vibration frequency of ultrasonic waves is very high, so the wavelength of its "waves" is very small, so its "waves"-small water droplets are also very small. Small water droplets become mist. The throat spray machine used in the hospital to treat respiratory diseases uses ultrasonic atomization.