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以某大采高电牵引采煤机为例,简要介绍了其内外喷雾冷却系统原理图;以质量方程、能量方程等为理论基础,推导了喷嘴压力-流量特性方程,确定了各条分路和支路流动特性的分析方法,通过计算获得了该采煤机内外喷雾系统的水头变化图和各支路的流量分配图,结合采煤机冷却设备实际情况,分析了该冷却系统的流动特性,指出了工作时必须注意的事项,提出了该系统的优化措施。
Taking a big mining electric haulage shearer as an example, the schematic diagram of the inside and outside spray cooling system is briefly introduced. Based on the mass equation, energy equation and so on, the pressure-flow characteristic equation of the nozzle is deduced, And branch flow characteristics of the analysis method, obtained by the calculation of the internal and external spray system of the coal mine head changes and the distribution of the flow chart, combined with the actual situation of the shearer cooling equipment, the analysis of the cooling system flow characteristics , Points out the matters that must be paid attention to at work, and puts forward the optimization measures of the system.