What effect does refrigerant purity have on the system?

The refrigerant is the blood of the compressor . The purity of the refrigerant is especially important for the refrigeration equipment . The obvious appearance of the Zui is: the cold storage filled with high-purity refrigerant, the cooling effect is obvious, the temperature drop is fast, and the cooling capacity is large. Low-purity refrigerants not only fail to reach the desired drop temperature, but also damage the compressor. Nanjing Haizhizhou Heating and Cooling Equipment Co., Ltd. has strict requirements on the purity of the purchased refrigerant, and refuses to accept the negative impact on the unit. The negative impact of Haizhizhou on the low purity of refrigerants is as follows:

1. High water content and high acidity, which seriously corrode the internal piping system of the compressor, causing internal compressor blockage and shortening the service life of the compressor.

2 , easy to leak, no refrigeration in the refrigeration system, the compressor has been idling, high operating temperature, large wear parts, will also shorten the life of the compressor.

3. Increase the operating load of the compressor, increase the consumption of electric energy, and increase expenses.

4 , some inferior refrigerants even doped with a lot of flammable and explosive gases, seriously affecting people's lives and property.

5 , the cooling effect is poor, the problem is frequent, although the addition of inferior refrigerant will temporarily feel the coolness, but the temperature is always difficult to fall, not the expected cooling effect.

6. Freon in the refrigerant, once leaked, will destroy the ozone layer and cause great harm to the atmosphere in which humans depend.

Refrigerants have made a great contribution to changing the living environment of human beings, but people's understanding of refrigerants has remained at a preliminary stage, as long as refrigerants of refrigeration can be used. In fact, it is not the case that the original manufacturers of refrigerants from large manufacturers are strictly checked, the purity inspection instruments are excellent, and the quality is guaranteed. However, some small distributors, driven by profiteering, sell the refrigerants produced by the original factory and sell them. The refrigerant equipment installed is simple, and it is impossible to close the contact space between the refrigerant and the air, which easily leads to the air content in the refrigerant. Excessive standard, too much moisture, resulting in ice blockage after charging the refrigeration equipment. If there is a problem with the refrigeration equipment and the compressor is damaged, it will not be worth the loss.

Nanjing Haizhizhou will affect the system performance and stability of inferior refrigerants, and more serious damage to system components and compressors. There are several ways to identify if it is a poor refrigerant:

1. Whether to purchase refrigerants produced by regular manufacturers through formal channels, such as refrigerants whose prices are significantly lower than the market price, should be highly vigilant.

2. If you have the test conditions, it is recommended to check the purity and acidity before using the refrigerant. It is not recommended for refrigerants whose test results are significantly lower than the industry standard.

3. If you do not have refrigerant detection conditions, it is recommended to perform a simple check before using the refrigerant. The simple check method can be:

[1] , invert the refrigerant tank and release a small amount of refrigerant onto a piece of white paper. If there are obvious impurities or liquid water on the white paper, the refrigerant quality is not good, it is not recommended;

[2] , press the pressure gauge to test the refrigerant bottle pressure, compare the refrigerant temperature and pressure characteristics table, check whether the pressure inside the bottle is within the normal value range, if the pressure is obviously abnormal, it is not recommended. When using half the refrigerant, a pressure bottle can be tested again for R22 such a single component refrigerant, two tank pressure measured values should be very close, but the poor quality refrigerant, usually mixed with various ingredients After the use of the refrigerant in the bottle, the bottle pressure will usually vary greatly due to the change of the composition ratio. If such a phenomenon occurs, it is recommended to immediately stop the refrigerant and discharge the refrigerant that has been charged into the system. To avoid contaminating the system.

4. In the system debugging and running phase, if the following abnormal phenomena are found:

1 ) The refrigeration capacity of the system is obviously insufficient, and the refrigerant should be paid attention to when no other abnormalities are found after inspection;

2 ) The system dryer filter or expansion valve is clogged, and the blockage is yellow-colored waxy or black sludge-like foreign matter, so pay attention to the refrigerant;

3 ) High and low pressure or temperature anomalies occur during system operation, or the system balance pressure is abnormal during shutdown (can refer to the refrigerant temperature and pressure characteristics table), and attention should be paid to the refrigerant. When these anomalies occur, it is recommended to extract refrigerant from the system for purity testing to check for the risk of inferior refrigerants. During this time, it is recommended to vent the compressor side refrigerant or to release the system-wide refrigerant to avoid potentially inferior refrigerant contact with the compressor and damage the compressor.

Once the unit components or compressors are found to be faulty due to chemical contamination caused by inferior refrigerants, the unit that used the same source of refrigerant in the field (even if the unit is still functioning properly) will need to be replaced. Because the effects of hazardous chemicals in inferior refrigerants are sometimes slow, they can cause system failure after a long period of use.

Nanjing Haizhizhou Heating & Cooling Equipment Co., Ltd. is a high-tech enterprise specializing in industrial refrigeration, commercial central air conditioning, industrial dehumidification equipment, R&D, design, sales, engineering installation and maintenance services, and industrialization and system integration energy-saving engineering services. The refrigerant is more stringent.