Installation issues of demisters commonly used in tower equipment
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For the demisters commonly used in tower equipment, what are the positional requirements regarding the inlet and outlet connections during installation, and how should they be positioned?
This is a very good question. Generally, the liquid inlet should be more than 100 mm above the surface of the tray or packing. The calculations related to demisters only outline the methods for such calculations, but do not specify exactly how far away it should be; however, this distance can be calculated. Based on gravitational settling, but it’s very complex. However, based on the design experience accumulated by the older generation, this height is generally between 1m and 1.2m.
I also learned * it. Thanks to the person above! So this data is also related to the choice of the defoaming device, right? Grids are generally used, and 1~1.2m is the installation height for grid foam eliminators, I guess.
It’s not a grid-type device; it’s a wire mesh demister. There are also those that use gravity for sedimentation, as well as ones with louver plates or baffle plates. However, this type of device requires a very large amount of space and is generally used in special situations.
Our wire mesh demister is installed 1 meter above the liquid inlet and 800 millimeters below the gas outlet during installation