The core problem of compressor oper
Common physical and chemical methods for removing scale in condensers in chillers
The water chiller is prone to scale formation in the condenser pipe after long-term use. If it is not treated in time, these scales will affect the heat exchange effect and cause the condensing temperature of the unit to increase, which in turn will reduce the cooling capacity and increase the power consumption of the unit. . Therefore, the condenser of an industrial chiller should be cleaned frequently. So what are the methods to remove the scale of the condenser in the ice water machine? The following editor will organize and introduce for you.
1. Chemical cleaning method:
Chemical cleaning is mainly to use cleaning fluid to clean, first clean with acid solution, then neutralize and clean with alkali solution, rinse with clear water after z*, and rinse with acid and alkali solution.
1. A circulating pump and pipeline can be connected between the cleaning liquid storage tank and the condenser to form a closed loop, so that the cleaning liquid can be circulated continuously for 12-24 hours to dissolve and fall off the sediment.
2. The cleaning fluid can be added to the cooling water system in a certain proportion, and the cooling pump is turned on for 12-24 hours. The sediment layer is continuously dissolved and peeled off by the chemical action and scouring action of the cleaning fluid. However, this method requires a lot of cleaning potions and is costly.
3. Mix the cleaning liquid according to a certain ratio, add it to the condenser and let it stand for 5-10 hours to soften and dissolve the sediment, drain the cleaning liquid, and rinse with clean water.
The advantage of chemical cleaning is thorough descaling, reducing the workload of workers, but the disadvantage is that the cleaning liquid may cause corrosion to the condenser copper pipe, and the waste liquid discharge problem after cleaning, the price of the cleaning liquid is relatively expensive. The manufacturer of Keyuan chiller reminds you to pay attention to the solution ratio, circulation and soaking time when chemical cleaning is carried out to prevent the condenser from being corroded.
2. Physical cleaning method:
Physical cleaning mainly uses flexible shaft brushes. The flexible shaft is driven by the motor of the washing machine to rotate. There is a nylon brush in front of the flexible shaft z*. When in use, the flexible shaft and brush are extended into the copper tube of the condenser, and the copper tube is removed by the brush that rotates at high speed. The dirt inside is washed with clean water after z*. This kind of machine is called a gun machine.
The advantage of physical cleaning is that it saves the cost of chemical cleaning liquid, avoids the disposal of waste liquid after chemical cleaning, and is not easy to cause corrosion of the condenser copper tube. The disadvantage is that the cleaning effect is not good for hard scale and corrosion products with strong adhesion. Good, and the cleaning operation is time-consuming and laborious.
If the condenser has excessively hard scale, it is recommended to use a combination of chemical cleaning and physical cleaning. Firstly, soak the condenser with cleaning fluid, and then use physical cleaning method to remove the scale after the scale is softened.
