In recent years, with the development of screw-type ind […]
In recent years, with the development of screw-type industrial frequency air compressors and variable frequency air compressors, the proportion of piston air compressors in the industry has rapidly declined, no longer dominated by the market. Compared with the piston air compressor, the screw air compressor has low operating cost. From the perspective of the whole life cycle of the machine, the screw machine investment recovery rate is 20% higher than that of the piston machine, and the work efficiency is obviously improved. The environmental pollution is small, the noise is small, and the energy saving effect is obvious. Therefore, the screw air compressor has replaced the piston air compressor in many collars.
China's air compressor market is mainly composed of piston type, screw type air compressors, among which screw type accounts for the largest proportion, followed by piston type, centrifugal type, sliding type, scroll type air compressor and so on. The demand for piston machines will gradually decline. According to the market research center, the market size of China's screw air compressors will maintain an average annual growth rate of 25% in 2014-2018. In 2008, the proportion of piston air compressors in air compressors accounted for 81.8%. Although the proportion in the past two years has declined, the overall price has remained above 75%. In 2011, the market size of China's piston air compressors was about 100.137 billion yuan. In 2012, the market size of piston air compressors was about 10.083 billion yuan.
According to the air compressor industry market survey, the market share of screw air compressors in western developed countries is about 80%. Japan's screw compressors accounted for 27% in 1976 and rose to 85% in 1985. In the future, China's piston compressors will be replaced. The intensity will continue to increase, but considering the replacement cost of the equipment, this replacement process will take some time. Centrifugal air compressors Because centrifugal compressors are oil-free compressors, they have good safety and hygienic performance. They can be used in industries with high requirements for food, pharmaceutical, mining and air separation.