Causes of evaporator fouling and descaling preparation

The reason

The evaporator circulation system has many acid salts, etchants and various microorganisms in the circulating water. Because there is no sewage treatment, the water will have a lot of calcium and magnesium carbonate on the water side after a period of use. Scale and algae plants, microbial strain sludge, such stains adhere firmly to the inner surface of the air conditioning copper tube, causing heat conduction failure, increased working pressure of the circulation system, reduced vacuum value of the generator set, and high efficiency of the operation of the generator set.

The traditional method of cleaning generally uses chemical nature - pickling passivation, which is reasonable for all kinds of stacking, saving time and effort than mechanical equipment. However, chemicals are corrosive to the system and other metal material components, and it is very prone to etch the piping of the machine equipment and affect the environment when discharging sewage.

Scale cleaning preparation in advance

1. Cut off the system that is not related to the evaporator.

2. Open the venting valve on the water side of the evaporator and the venting valve at the bottom of the vapor side to ensure that many vapors caused by the cleaning process can be immediately drained and filled with clean liquid; together with the cleaning valve to check the cleaning process Leakage condition of copper tube in medium heat exchanger air conditioner.

3. In order to detect the actual cleaning effect of the system and the erosion condition of the equipment during the cleaning process, before the construction of the cleaning project, the standard etch test piece and the test pipe which are equal to the machine equipment materials are suspended in the cleaning tank.https://www.heczb.com/