Noise control of air compressor mainly adopts muffler, muffler tunnel and sound insulation technology:
The main noise sources are inlet and outlet. Suitable inlet and outlet mufflers should be selected. The frequency spectrum of air compressor inlet noise is of low frequency. The intake muffler should be of resistance structure or resistance structure. Air compressor exhaust air pressure, high airflow speed, should be used in the air compressor exhaust hole muffler.
Set up silencing tunnel
A subterranean or semi-subterranean tunnel with walls of good sound-absorbing brick. Connect the air compressor's inlet pipe with the anechoic tunnel so that air can enter the air compressor through the anechoic tunnel. Adopting the muffler tunnel can greatly reduce the air intake noise of the air compressor, and the service life is longer than the general muffler .
Build a sound shield
After the air compressor inlet and exhaust port installation muffler or set up the muffler tunnel, airflow noise can be reduced to 80db(a) below, but the air compressor mechanical noise and motor noise is still very high, so should also be installed in the air compressor unit sound insulation hood. 4, suspension space sound absorption body: in foshan lingge wind air compressor station, tall empty factory reverberation is very heavy. If sound absorbers are hung separately on the roof of the workshop, the noise of the workshop can be reduced by 3-10db(a) and the reverberation time by 5-10s.
The market size of China's air compressor industry grew by more than 8%, and the growth rate even exceeded 28% from 2010 to 2011. The market size expanded rapidly. However, in such a large market, foreign companies controlled most of the market for a long time. According to the data of qianzhan website, in 2009, China's air compressor industry has nearly 400 production enterprises, among which the number of domestic enterprises is close to 90%. The total sales revenue is about 6 billion yuan, accounting for 40% of the whole industry. The number of foreign-funded enterprises is close to 10%, and the total sales revenue is about 9 billion yuan, accounting for 60% of the whole industry.
However, domestic enterprises continue to strengthen technological innovation, leading domestic enterprises in the industry, such as kaishan shares, continue to forge ahead in technology, the performance of the company's products to reach the international level, in the foreign dominated high-end market has gained some gains. With the continuous improvement of product performance and upgrading of technology, the market share of domestic enterprises is also increasing year by year. Take screw air compressor as an example, from 2009 to 2011, the sales volume of screw air compressor increased from 14,800 units to 32,800, with a compound annual growth rate of 48.87%, and the market share increased from 14.10% in 2009 to 19.40%. The sales volume increased from 0.080,000 to 20,100, and the market share increased from 0.80% to 11.90%, which developed rapidly.
Shenyang weidel energy saving equipment co. LTD
Tel: 024-31556558 13066748717
Email address: firstname.lastname@example.org
Address: door 13, 14, building 5, no. 22-6, hongxing road, yuhong district, shenyang (shenyang wuzhou international industrial expo city)