磁力消防泵蜗壳结构的流场特性  

The Flow Field Characteristic Research of Volute Structure of Magnetic Fire Pump

作　　者：王其磊[1] 

机构地区：[1]中国人民武装警察部队学院,河北廊坊065000

出　　处：《机械设计与研究》2013年第6期29-32,共4页Machine Design And Research

基　　金：中国人民武装警察部队学院青年基金资助项目(QNJS201225)

摘　　要：为了有效改善消防泵的输送特性及外特性(扬程、流量等特性),以提高消防泵的运行效率,文章基于磁力泵无接触传动的特点,将其作为消防泵蜗壳结构特性改进研究的基础,利用FLUENT软件对改进效果进行了比较研究。研究发现:从两种蜗壳喉部卸压区压力分布来看,矩形螺旋蜗壳的卸压效果要好,表现为梯度明显。环形蜗壳在隔舌处留有较大空间,导致了在此处的速度较大,而螺旋蜗壳则较好的控制了这点的分流。本研究为进一步提高磁力消防泵效率和蜗壳部分的优化改进奠定了基础。In order to effectively improve delivery characteristics and external characteristic （ lift, flow, etc） of the fire pump, so as to increase the operation efficiency of fire pump, the structural feature of magnetic fire pump volute is studied based on its none contact transmission characteristics. A comparative research of the improved effectt is cansided at by FLUENT software. The study found that： from the pressure distribution of pressure relief area of two kinds volute throat, the pressure relief effect of rectangular spiral volute is better, because of its obviously gradient performance. There is remained large space at the ring volute tongue, which leads to the bigger speed, and the spiral volute is better control this shunt. This study, provides a the foundation for further improving the efficiency and volute part optimization of magnetic fire pump.

关 键 词：磁力泵 蜗壳 二次流 消防 

分 类 号：TH311[机械工程—机械制造及自动化]