Abstract：Design methods of a multistage flameproof submersible pump for coal mine were introduced in details.The effects of base holes,cover height,volute flow passage and outlet position on pump hydraulic efficiency were analyzed,and the optimizations for those parts were done.Pump′s volumetric efficiency can be improved by using floating rings.Rotor′s radical flop is limited through setting a sliding bearing.Pressure at friction-pair of dual-end face mechanical seal is always larger than spring′s origin force through static ring optimization in oil chamber.The BQW80-180-90 pump experiment results show that the pump can run quietly due to the floating rings and sliding bearing,and its efficiency is increased by about 8% compared to that of MT/T 671-2005.Meanwhile the new mechanical seal is more reliable than the old one.To sum up,the new design of this kind pump has high efficiency and reliability.
曹卫东， 李跃， 孙新庆. 内装式矿用隔爆多级潜水泵设计[J]. 排灌机械工程学报, 2009, 27(3): 145-149.
Cao Weidong,Li Yue,Sun Xinqing. Design of multistage flameproof submersible pumps with inner motor for coal mine. Journal of Drainage and Irrigation Machinery Engin, 2009, 27(3): 145-149.
Hostalrich C,Barriquand E.New main drainage equipment at the Salsigne Mine[J].Industrie Minerale,Les Techniques,1984,8(84):621-624.曹卫东,朱荣生,黄道见.潜水污水泵的隔爆化设计[J].水泵技术,2001(6):17-19,26.Cao Weidong,Zhu Rongsheng,Huang Daojian.Flameproof design of submerge sewage pump[J].Pump Technology,2001(6):17-19,26.(in Chinese)施卫东,曹卫东,刘厚林,等.不同叶轮结构型式对污水泵性能的影响[J].农业工程学报,2003,19(2):114-116.Shi Weidong,Cao Weidong,Liu Houlin,et al.Influence of different impeller structures on performance of sewage pump[J].Transactions of the Chinese Society of Agricultural Engineering,2003,19(2):114-116.(in Chinese)施卫东,曹卫东,刘厚林,等.无过载潜水排污泵的设计与试验[J].农业机械学报,2003,34(1):54-56.Shi Weidong,Cao Weidong,Liu Houlin,et al.Design and experiment on a non-overload submersible sewage pump[J].Transactions of the Chinese Society for Agricultural Machinery,2003,34(1):54-56.(in Chinese)Olivier P.New deal in mine drainage[J].Industrie Minerale,Mines et Carrieres,1986,68:401-405.