Answer: The baffle separator is a type of inertial separator. This type of separator, especially the "shutter" type baffle separator composed of multiple baffles, is widely used in cold dryers. They have a good air-water separation effect on water droplets with a wide particle size distribution. Because the baffle material has a good wetting effect on liquid water droplets, after the water droplets of different particle sizes collide with the baffle, a very thin layer of water is generated on the surface of the baffle, which will flow down the baffle and gather into larger water droplets at the edge of the baffle. The water droplets are separated from the air under the action of their own gravity.
The capture efficiency of the baffle separator depends on the air flow velocity, baffle shape and baffle spacing. Some studies have shown that the water droplet capture rate of the V-shaped baffle is about twice that of the flat baffle.
Baffle type air-water separators can be divided into special-shaped baffles and spiral baffles according to the shape and arrangement of the baffles (the latter is the commonly used "cyclone separator"). The baffle of the baffle separator has a very low capture rate for solid particles, but in the cold dryer, the solid particles in the compressed air are almost all surrounded by water film, so while capturing water droplets, the baffle can also separate the solid particles together.
