Cleaning of air coolers
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After operating for a period of time, the air cooler needs to be cleaned. The process thermal fluid is mainly water vapor, with a temperature above 100 degrees; it contains impurities such as coal dust, and its temperature is reduced to 50 degrees. What cleaning methods are available?
This post was last edited by Cleaning Engineer on 2010-8-8 at 10:24. I’m not clear about which side of the air cooler you want to clean – the outer fins or the inside of the tubes. Is it the steam flowing inside the tube side? The steam contains coal dust, and scaling occurs on the tube side; for cleaning it, high-pressure water is recommended. It will be more effective to remove the bolts at one end of the air cooler and clean each tube individually.
Why do my posts always have * and not display properly?
High-pressure water cleaning is the most common method
Agree with the person above; a high-pressure water jet will do.
Unfasten a section, rinse it with high-pressure water, and also pound it with a steel rod, but be gentle
First, it’s necessary to determine whether to clean the side of the tube or the side of the fins. In most cases, people talk about cleaning the fins, but in the situation described by the original poster, I think the inside of the tube definitely needs to be cleaned, as it’s more convenient to remove rust from there. Cooling from 100 degrees to 50 degrees – there should be no need to spray water outside the tube, right? Without spraying water, no dense scale will form. After vibrating the tube, wash it with high-pressure water; for steel fins, a higher pressure is not a problem at all, and 10 Mpa is definitely sufficient. For aluminum fins, a lower pressure is required, and the cleaning should be done by pushing gently so as not to damage the fins. The poster asked, what is the reason why impurities such as coal dust end up mixed in the water vapor? That doesn’t make any sense.
The best cleaning method is to use high-pressure water； Advantages: it does not damage equipment, causes no pollution, has low costs, and is very convenient. At present, high-pressure water cleaning has seen rapid development in the chemical industry; our company has used high-pressure water cleaning on turbine rotors, centrifugal compressor rotors, as well as the fins of air-cooling units in air separation systems, with excellent results! I suggest the original poster give it a try!
It is mainly about the issue of cleaning inside the pipe. Thank you all :)
Due to the water being sprayed on it, the aluminum finned tubes have developed a fairly dense layer of scale; high-pressure water cannot remove it