Some chemical enterprise improper oil air compressor oil

Some chemical enterprise oil air compressor oil 2019 - 01 - 25 a syngas compressor, case background a chemical company overhaul in 2012, found that high and low pressure cylinder thrust bearing are serious scaling, tile local ablation, peeling, radial bearing surface rust is obvious, local ablation, CT2 instrument speed sensor and bearing box cover obvious rust, sludge accumulation. To urgently resolve thrust bearing in the compressor of the place such as severe scaling problems, entrust the wide research testing for oil equipment failure root cause analysis and detection. , widely research testing conducted a thorough inspection plan formulation, on new oil and oil has made a testing analysis in detail. Second, monitoring is widely research test has carried on the careful monitoring analysis, look from the testing data, can be found: (1) Checked new oil acid value compared with the old oil is on the high side, oxidation resistance is normal. New oil oxidation resistance and the degree of refined oil products is related to the content and antioxidant additive. And additives in the oil degradation will happen in the course of using, generates a series of small molecules, the filter can't filter, finally deposition in bearings, bearings and other metal surface, form a 'film'. This is one of the causes of failure. 2) In antioxidant content found in the process of detection, the new and old oil high temperature amine antioxidants in relatively low temperature, the contents of phenolic antioxidants, show that the oil in the condition of high temperature oxidation resistance ability are relatively weak, when the compressor because early thrust tile and thrust tile set of accumulated on the surface of paint film cause friction heating, oil temperature rise, is prone to oxidation, further promote the oil film formation. Characteristics of the syngas compressor working temperature is relatively high, choose high temperature amine antioxidants are relatively low content of mineral oil is triggered film generated another reason. Three, case enlightenment through product testing, that causes severe 'film' equipment in a short scaling is caused by the improper product selection, so extensive research testing advise clients first remove paint film on the surface of the bearing, oil sludge, and then switch to high temperature oxidation resistance of devices for better synthetic oil lubrication. After customers widely research detection's suggestion, change the oil, succeeded in solving the problem of paint film. Source: ( Extensive research test shandong inspection center)