Trough type liquid distributor has greater operational flexibility and excellent anti-fouling and blocking, especially suitable for atmospheric liquid load and the separation of liquid containing solid suspended solids, viscosity. Because of its excellent distribution performance and anti-fouling and blocking performance, the tower inner groove distributor is widely used. The opening rate is above 30%, the operating elasticity is 1: :1, and the pressure drop is 500PA.

In order to reduce the amplification effect caused by poor liquid distribution and give full play to the efficiency of packing, a liquid distributor must be installed in the packing tower to distribute the liquid evenly on the top of the packing layer. The quality of the initial distribution of liquid not only affects the mass transfer efficiency of the packing, but also affects the operating elasticity of the packing.