The regulation method should be driven more by industrial turbine or gas turbine to achieve the goal of energy saving by changing the speed. Secondly, the use of imported technology to develop energy-efficient fans. In addition, it is very important to adjust the transmission mechanism and change the operation condition of the fan products.
First of all, in the design aspect, through the application of impeller, volute and other components of scientific research results, and further improve the manufacturing accuracy, and strive to make all kinds of fan efficiency increased by 5% to 10%.
But because of the use of the three yuan fan blade manufacturing process flow more trouble than ordinary fan blade manufacturing cost is high, plus the product technology transfer fee is high, the whole blower manufacturing costs increase, the user can not afford, nor in the whole industry to promote.
As the three large flow of natural gas pipeline transportation America developed three element flow centrifugal compressor impeller, the impeller efficiency can reach 94% to 95%; the efficiency level of single shaft and multi stage centrifugal compressor in Japan is further improved, the heads of the large flow of semi open impeller is three yuan KZS mine shaker thermal efficiency up to 94%. For these reasons, although the efficiency of some fans is higher, the efficiency of the equipment is not very high, and some even as low as 30%.
The double roll crusher used in metal mine fan power consumption accounted for 30% of the total national mining electric fan; iron and steel industry using electricity consumption accounted for 20% of the total production of electricity; fan coal industry using national coal industrial electricity consumption accounted for 17% of total power.