The air conditioning system of Chongqing refrigerated carriages mainly uses fluorine as the medium to achieve refrigeration by changing the system pressure. It consists of an evaporator, an expansion valve, a compressor, a blower, a condenser, a drying oven, and pipelines.

When the refrigerated container air conditioning system is working normally, the evaporator tank works in a cold environment, and the opposite hot air will produce water, which is also the reason for designing water pipes in the evaporator tank structure.

The humid environment of the evaporator and ventilation duct, as well as the dust on the surface, provide a breeding ground for mold and bacteria. Molds and fungi can quickly spread into the mold and fungal community, causing biological decay and odor.

When the air conditioner is turned on, these odors will mix with the air conditioner. The interior of the entire car often makes the driver feel uncomfortable. Severe cases can lead to discomfort such as dizziness and chest tightness. It is often referred to as air conditioning disease.

In order to solve this problem in the maintenance industry, it is often necessary to disassemble the evaporator and clean the surface of the evaporator to achieve the fundamental purpose of odor. However, each disassembly requires a series of processes, such as fluorine, installation, and adding fluorine, which is cumbersome, technically difficult, and inefficient.

Due to the fact that evaporation tanks typically work in humid environments, they are prone to mold growth, and newly removed air conditioners may produce odors over time. In addition, the air conditioning system of refrigerated trucks generally has problems such as poor heat dissipation and small fluorine leakage, which brings great difficulties to maintenance.

In the air conditioning system, the power of the circulating fluorine in the air conditioning pipeline comes from the compressor, and the lubrication of the compressor is completed by fluorine oil. In the pipeline, fluorine oil and fluorine circulate throughout the system, and their circulation flow directly affects the refrigeration performance of the air conditioner.

For a long time, fluorine and fluorine oil in high temperature, high pressure, low temperature, and low pressure environments have been changing, so compressors are becoming increasingly popular.

Long term wear and tear of metal fragments can produce colloids and other deposits. Some of the sediment is filtered out, while others settle in various pipelines. A small amount of sediment will not affect the cooling performance of the air conditioner, but it will produce sediment.

More and more substances will affect the circulation of fluorine, and the air conditioning of refrigerated trucks will still cool down slowly due to fluorine and fluorine. We can consider whether we can solve the cleaning problem in the air conditioning system.