在研究不同结构的管壳式热交换器壳侧流动和传热特性的基础上 ,结合强化传热技术、高梯度磁过滤技术 ,研制了适合煤矿机械液压及润滑系统使用的冷却净化器 .测试表明 ,冷却净化器对 1 0 μm以上颗粒的过滤效率为 84% ,是一般磁过滤器效率的 3倍 ;壳侧对流换热系数比现有冷却器高 1 9 7% .该冷却净化器已在液压锚杆钻机中取得了成功的应用 Based on the study of flow and heat transfer characteristics of shell and tube heat exchangers with different structures, combined with enhanced heat transfer technology and high gradient magnetic filtration technology, a cooling purifier suitable for use in coal mine machinery hydraulic and lubrication systems was developed. The results show that the cooling efficiency of the filter is 84%, which is 3 times of that of the general magnetic filter, and the convection heat transfer coefficient of the shell side is 119% higher than that of the existing cooler. In the hydraulic bolt rig has been successfully applied