Around the 1970s, the advent of plastic packing was a major innovation in the development of cooling towers. Plastic fillers were first applied in the heating, ventilation and air-conditioning industries, and later in the refining and power plant industries. This filler is characterized by good corrosion resistance and can be used for a long time. Plastic film packing is a major innovation in the development history of cooling towers because it increases the contact area between water and air. Thereby has better cooling capacity. However, under the high temperature and humidity working conditions of the cooling tower, the plastic filler will age and deform after working for about 3 years, affecting the cooling efficiency. And winter freezing will also have a greater impact on plastic fillers.
Lamella Clarifier Tube settler has the advantages of advanced technology, reasonable design, reliable data, and durability. Tests and production operations show that it has good cooling effect, small ventilation resistance, strong hydrophilic performance, and large contact area. The oblique staggered packing adopts two forms of ring material and screw assembly, and the inclination angle is generally 60 degrees. It is mainly used for round counterflow cooling towers. When the length of the inclined pipe is 1 meter, the effective load is designed according to 3-5 tons / meter2·hour. VO is controlled in the range of 2.5-3.0 mm / s, and the effluent quality is the best. The inclined tube sedimentation tank has a capacity of 3-5 times that of the advection sedimentation tank, and 2 times that of the accelerated clarification tank and pulse clarification tank.