If you want to extend the service life of cooling, what do you need to do? First, we carry out anti-corrosion treatment on the inner wall of cooling tower, mainly in order to extend the service life of cooling tower, and improve its ability to deal with all kinds of acid and alkali substances. What operations do we need to do before anticorrosive construction? The following Sichuan cooling tower manufacturer Xiaobian together to understand in detail

1. Dust removal treatment

(1) The dust and debris on the inner wall of the tower are washed by high pressure water from top to bottom, and fresh water is used to wash the water. River water, urban water, pond water and surface polluted water shall not be used

(2) In the temperature below 5℃ is not suitable for high pressure water scouring, the use of hair dryer from the top down.

(3) The surface of concrete after scouring and purging is free of sundries and dust. Supervision inspection shall prevail... Does not affect the adhesion of anticorrosive materials.

(4) In order not to cause secondary sand and dust pollution, plastic sheets should be used to cover the sprinkler components, trenches and tower floors of ground construction when necessary.

2. Grinding treatment

(1) Polish the uneven surface, shaft and internal support mechanically, and polish the convex local zhong point. The degree of polishing should not expose the protective layer of reinforcement.

(2) Polish the wrong platform and edges of the template interface. The degree of polishing is mainly excessive smoothness. The concave and convex of the template interface wrong platform shall not be greater than 5mm.

(3) After grinding, the surface of concrete is smooth and smooth, and visually there is no significant bump and bumpy steep slope.

3, tower inner wall plugging

After the appearance of the holes and gaps of the cooling tower are treated, the holes are filled with silicone rubber, the diameter of silicone rubber is slightly larger than the diameter of the holes, and the wooden strips are sent into the holes, and the silicone rubber is filled with waterproof cyanide twice, and the polymer waterproof mortar is used to fill the gaps and make the appearance smooth when the cyanide condensate does not reach the dry point.

4, scraping putty leveling

(1) After plugging qualified internal appearance, first of all, the repair mortar that meets the requirements is used to repair the shortcomings, such as large pits, trenches, depression bolt holes and so on, so as to achieve internal compaction, smooth transition of edges and corners, and the appearance is equal to the cylinder wall.

(2) The bottom treatment of qualified inspection of the inner surface of the selection of material manufacturers to supply special putty for leveling.

(3) Use special putty to scrape the inner wall of the tower body, the size of pores, honeycomb pockmarked surface, and the local arc of the template interface is excessive to reach the appearance of dense, uniform thickness, no honeycomb pockmarked surface, no warped skin off. Make the inner surface smooth and smooth, no significant edges and corners, and thoroughly reach the specification of suitable coating rolling.