Specific steps and cleaning process to extend the life of screw chillers

First of all, we must formulate rules and regulations for the cleaning and maintenance of screw chillers, and clean the evaporators, condensers, pipes, filters, cooling towers, etc. of the chillers every year to avoid the impact of impurities in the water quality. The chiller is operating normally.

The cleaning process of the screw chiller is as follows: first inject the cleaning agent into the liquid tank, then start the pump, make it run, and start cleaning. When cleaning, perform multiple operations in forward and reverse directions until the cleaning agent is not acidic. For mild pollution, it only needs to circulate for about 1 hour. For severe pollution, it takes 3-4 hours. If cleaning for a long time, the cleaning agent is dirty, and the filter is also clogged and dirty. You should replace the cleaning agent and the filter drier before performing this operation. After the system is cleaned, the cleaning agent is dirty and the filter is clogged and dirty. The cleaning agent in the reservoir must be recovered from the liquid pipe.

After cleaning, the refrigeration pipeline should be purged with nitrogen and dried, and then filled with fluorine, and commissioning of the unit should be carried out to ensure the normal operation of the chiller.