Compressor oil composition

Abstract

The invention discloses a compressor oil composition which comprises the following components in percentage by weight: 0.2-0.6 percent of antioxidant, 0.2-0.8 percent of ashless complexing agent A, 0.2-0.8 percent of ashless complexing agent B, 0.01-0.3 percent of ashless antiwear agent, 0-0.1 percent of anti-foaming agent and the balance of basic oil, wherein the basic oil comprises cut narrow fraction hydrogenated mineral oil and cycloparaffin basic oil. According to the compressor oil composition, the two complexing agents are matched and play a synergic enhancement effect, so that the compressor oil composition has comprehensive, balanced and excellent properties, such as oxidation stability, extreme pressure antiwear property, anti-rust property and demulsification property and is not easy to generate greasy filth; and meanwhile, the basic oil has high dissolubility, excellent low-temperature property and other properties, so that the compressor oil composition has excellent high-temperature oxidation stability, cooling property and extreme pressure antiwear property on the whole, and especially has excellent detergency and dispersancy and greasy filth and carbon deposit resistance property.

Description

technical field [0001] The invention relates to the technical field of industrial lubricating oil, in particular to a compressor oil composition used for lubricating compressor equipment. Background technique [0002] Compressor, as a general mechanical equipment, is widely used in chemical industry, machinery, electronics and other industries. At present, compressors widely used include reciprocating type, screw type and centrifugal type. Compressor oil is used in compressors, and usually has the functions of lubrication, sealing, cooling and cleaning. The quality of compressor oil has a great impact on the reliability and safety of compressors. For reciprocating compressors , If the quality of the compressor oil is poor, it is easy to form carbon deposits on the exhaust valve, resulting in the air valve not being tight, so that the high temperature and high pressure compressed air returns to the cylinder, and the temperature continues to rise after repeated compression, re...

AI Technical Summary

Problems solved by technology

However, a higher amount of antioxidants is likely to cause problems such as difficulty in dissolution, formation of sludge, and increased tendency to generate sludge; for example, while extreme pressure and antiwear agents increase the extreme pressure lubrication performance of oils, their strong polarity is likely to cause Oxidation, emulsification, and rust formation of oil products; while anti-rust agents provide good anti-rust properties, they will affect the oil's anti-oxidation and extreme pressure lubricity

[0004] As disclosed in the Chinese patent application documents of CN 10724489A, an air compressor oil composition is added with antioxidant and ashless antirust agent in the base oil mixed with polyalphaolefin and ester oil , metal passivator, ashless anti-wear agent, anti-foaming agent and other ingredients are added. However, since the base oil of this compressor oil is a synthetic oil of ordinary mineral oil, the compressor oil of ordinary mineral oil type is used The service life is too short, it is easy to produce carbon deposits, and at the same time, the cost of synthetic compressor oil is relatively high

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