What problems are likely to occur when the compressor runs for a long time?

Twin Screw air compressor


  1. The wear gap increases


As long as the machinery is running, there will be wear. Under normal circumstances, the wear will be reduced a lot because of the lubrication. However, when running at high speed for a long time, the wear will slowly increase. The increase in wear will be followed by the yin and yang rotors of the main engine. The distance between them increases. The direct consequence is that the leakage of the compressor increases during the compression process, and the volume of compressed air discharged from the machine becomes smaller. In terms of efficiency, the compression efficiency of the compressor is reduced. At the same time, it will have a great impact on the service life of the yin and yang rotors, because the initial cause of many mechanical failures is the gap between the bearing and the main shaft.


  1. Parts are damaged and deformed


The air compressor main unit is the core compression component of the compressor. Its internal components are exposed to high temperature and high pressure for a long time. Coupled with high-speed operation, component deformation will inevitably occur over time. At the same time, the cause of deformation is also the use of environmental factors, and the air in the environment where air compressors are generally used will contain dust and impurities. After these small solid substances enter the machine, if they accumulate over time and form larger solid blocks, it will It may cause the yin and yang rotors to deform and increase the gap, which may even cause the main engine to get stuck. The vulnerable parts in the main part of the air compressor mainly include: various gaskets, sealing rings, shaft oil seals, etc., especially the shaft oil seal, which has been exposed to high temperature, high pressure, and high-speed operation for a long time, and its service life is greatly shortened. The direct consequence of its damage is oil leakage from the compressor. If it is not discovered in time, the yin and yang rotors and bearings will be burned due to lack of lubrication.


  1. Increase in operating costs


Air compressor operating costs include maintenance costs and electricity costs. Since the main engine of the air compressor has not been overhauled for a long time, the wear of the components increases, and some worn impurities remain in the main engine cavity, which will shorten the life of the lubricant. At the same time, due to the impurities, the oil-gas separator core and the oil filter period will The use time is greatly shortened, resulting in increased maintenance costs. In terms of power costs, due to increased friction and reduced compression efficiency, power costs will inevitably increase. In addition, the decrease in air volume and compressed air quality caused by the compressor host will also cause an indirect increase in production costs.


Therefore, the possible consequences of not overhauling the air compressor host after long-term operation will not only cause serious damage to the compressor body, but also pose serious safety hazards. At the same time, it will bring serious direct and indirect economic losses to production. Therefore, it is necessary and necessary to carry out preventive overhaul of the air compressor host after running for a certain period of time.


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