Why is there such a strict limit on the exhaust temperature in compressors?
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Answer: For compressors equipped with lubricating oil, if the exhaust temperature is too high, it will reduce the viscosity of the lubricating oil, thereby deteriorating its performance； It causes the light fractions in the lubricating oil to evaporate rapidly, leading to the formation of \"carbon deposits\". Practice has shown that when the exhaust temperature exceeds 200°C, carbon buildup becomes quite severe, causing blockages in the passages of the exhaust valve seats and spring seats as well as in the exhaust pipes, which increases the resistance in those passages ； ““Carbon buildup” can cause the piston rings to get stuck in their grooves, thereby losing their sealing function ； If electrostatic forces can also cause explosions due to \"carbon buildup,\" then the exhaust temperature of compressors used for power generation should not exceed 160°C in the case of water cooling, and 180°C in the case of air cooling.
Well said, but something should also be said about oil-free lubrication. Only then is there contrast. For reciprocating machines, excessive temperature at the inlet and outlet can damage the equipment and easily lead to explosion accidents!
The original poster is right. Additionally, high temperatures have a significant impact on the components of compressors; in particular, when non-metallic piston rings, packing, and valve plates are used, there are certain temperature limits, as excessive temperatures can greatly affect their service life.
It reflects the efficiency of the unit; a high exhaust temperature indicates that there must be a problem with the unit
In large-scale process screw compressors, the discharge temperature is generally set at 95 degrees; the mechanical reliability of the compressor is of primary importance. In China, this value can reach up to 120 degrees in the case of dry screw compressors