After 5-8 years of normal use of general cooling tower, it is necessary to replace the pvc fill. In case of no normal maintenance, the fill needs to be replaced once every two years. If the following abnormalities occur to the fill in the tower, it shall be replaced in time to make the thermal efficiency of the whole tower reach the predetermined goal.
1. Scaling. The packing in the tower has scale, which is generally calcium carbonate scale attached to the fill, which is stone like and hard in texture.
2. Sinking. The fill of the tower body is stained with heavy mud ash, and sometimes a large number of algae grow, which makes the fill sink and cannot be used.
3. Aging. After long-term use, due to the erosion of water and air, the fill is gradually old, brittle and easy to be damaged. The aging of high temperature tower packing is faster than that of ordinary tower, and it is generally replaced once every 4 to 6 years.
4. The fill of cooling tower is seriously damaged due to improper selection or operation. Each type of cooling tower has design work index value, and improper selection will directly lead to serious damage and scrap of cooling tower. However, in the important working indexes such as inlet water temperature and configuration tonnage, if the working index is greater than the design index value due to improper operation, it will also cause serious damage to the filler.
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