论文部分内容阅读
我司五个生产矿山共有主、局、辅扇风机436台,7110.5KW,正常运转约350台,装机容量5330KW,通风用电占矿山生产用电的四分之一左右,曾对运行的9台70B_2主扇进行过测定,其效率平均为41.46％,最低的只有16.89％,其原因为<1>70B_2系列扇风机本身静压效率低,加之制造质量低,致使扇风机效率达不到设计要求;<2>扇风机与矿井等积孔不匹配,实际工作点落在合理工作区间以外。如将所有主辅扇效率
There are 436 main, bureau and auxiliary fan fans in our five production mines, with 7110.5KW and about 350 normal operation. The installed capacity is 5330KW. Ventilation electricity accounts for about one quarter of the mine’s production electricity, Taiwan 70B_2 main fan were measured, the average efficiency of 41.46%, the lowest was only 16.89%, the reason for the <1> 70B_2 fan series itself low static pressure, combined with low manufacturing quality, resulting in fan efficiency less than the design Requirements; <2> Fans and mines and other holes do not match the actual work point falls outside the reasonable work area. If all the main auxiliary fan efficiency