Influence of Excessive Exhaust Temperature on Low-Temperature Chiller during Operation

2022/10/12 ClassificationIndustry News 198

Influence of Excessive Exhaust Temperature on Low-Temperature Chiller during Operation

We know that the discharge temperature is an important parameter in the operation of the refrigeration compressor and must be strictly controlled. If the exhaust temperature is too high, it will cause overheating of the special refrigeration compressor for the chiller. Next, we describe the effect of high exhaust temperature on industrial chillers during operation.

1. If the exhaust temperature of the compressor is too high, the gas transmission coefficient will directly decrease and the shaft power will increase. Moreover, the reduction of the viscosity of the lubricating oil will cause abnormal wear of the cylinder, bearing and piston ring, and even cause the accident of burning the bearing bush and the cylinder pulling.

2. Once the exhaust temperature of the compressor is too high, it will directly lead to thermal decomposition of the refrigerant and lubricating oil under the catalysis of metal, and will generate acid substances, free carbon and moisture that are harmful to the compressor. If free carbon is deposited on the exhaust valve, it will not only destroy its tightness, but also increase the flow resistance. If the exfoliated carbon residue is carried out of the compressor, it will block the capillary and the dryer. Acids will corrode the components and electrical insulating materials of the chiller refrigeration system. Moisture can clog the capillaries.

3. The chiller operator should check the overheating of the compressor. If the overheating is serious, the piston will be over-expanded and stuck in the cylinder, and it will also cause the built-in motor of the hermetic compressor to burn out.

4. The high exhaust temperature of the compressor will directly affect its service life, because the chemical reaction speed increases with the increase of temperature. In general, when the temperature of electrical insulating materials rises by 10°C, its lifespan is reduced by half. This is especially important for hermetic compressors.

In a word, we talk about the influence of high exhaust temperature on industrial chillers during operation. We have the above content, we need to analyze and summarize deeply. We must limit the discharge temperature of the special refrigeration compressor for chillers, so as to better promote the development of the industry.

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