In industrial production,
Screw Compressor as the core equipment to ensure stable operation, its performance is closely related to the choice of oil. The right oil can not only effectively reduce the wear and tear of the equipment to extend the service life, but also enhance operational efficiency and reduce maintenance costs. However, in the face of a wide range of oil products on the market, how to accurately select the right oil for screw compressors has become a problem for many companies. jiubei, as a professional
Screw Air Compressor manufacturer, with deep technical accumulation and rich experience in the industry, we bring you a professional screw compressor oil purchase guide.
First, according to the type of compressor accurate matching
screw compressor is divided into oil-free screw compressor and oil-injected screw compressor, different types of oil have very different needs. Oil-free screw compressor, the lubricant is mainly used for lubrication of bearings and gears, so you can use economic mineral oil, and add anti-foam agent and wear reducer, to meet the basic lubrication needs while controlling costs. The oil-injected screw compressor, the lubricant needs to undertake lubrication, sealing, cooling, noise reduction and other multiple functions, and to have excellent resistance to chemical decomposition, oxidation, carbonization characteristics, so more recommended to use semi-synthetic or fully synthetic oil. For example, under high load continuous operation, fully synthetic oil can provide continuous and efficient protection for the compressor by virtue of its stable chemical properties.
Selecting oil in relation to ambient temperature
The ambient temperature has a direct impact on the viscosity and fluidity of the oil, which in turn affects the compressor's operating conditions. In the high temperature environment, the viscosity of the oil will be reduced, then you should choose a high viscosity index of polyol ester synthetic oil, to ensure that at high temperatures can still form a stable oil film, to protect the lubrication effect; in the ultra-low temperature environment, the ordinary oil may become viscous, resulting in difficulties in the start-up, and therefore need to choose a special low-temperature liquidity of the synthetic oil, so that the compressor in the cold conditions can be easy to start, smooth operation.
Third, consider the refrigerant type suitable for oil
refrigerant type is an important factor that should not be ignored when choosing a screw compressor oil. Different refrigerants and oil compatibility differences, if not properly matched, may trigger chemical reactions, affecting the performance of the compressor or even cause equipment damage. For old systems using ammonia or R22 refrigerants, mineral oils are usually compatible; for new environmentally friendly refrigerants such as R134A, R407C, R410A, etc., ester or PAO synthetic oils must be used due to their special chemical properties. Jiubei's technical team reminds us that when replacing a refrigerant or purchasing a new unit, we must carefully check the refrigerant type to ensure that the oil is compatible with it and that we are able to avoid any potential risk at the source. The Jiubei technical team reminds that when replacing refrigerant or purchasing new equipment, it is important to carefully check the type of refrigerant to ensure that the oil is compatible with it, so as to avoid potential risks at source.
Fourth, the characteristics of the industry to lock the oil
Different industries have significant differences in compressed air quality requirements, which also determines the specificity of the choice of oil. In the food, pharmaceutical and other industries with very high requirements for health and safety, in order to avoid oil contamination of compressed air, we must use FDA-approved food-grade PAO oil, to ensure that the production process is safe and compliant; in the chemical industry, metallurgy and other industries, due to the complexity of the working conditions, corrosive, we need to select the oil with excellent anti-corrosion, anti-wear performance to cope with the harsh working environment.
