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目前国内外混流泵的发展速度很快,过去我国南方地区使用较多,而北方却较少。随着生产的发展,使用混流泵的优越性,日益被人们所认识。“700HW—11型蜗壳式混流泵”是山东省科委和原机械电子工业部1992年度分别下达的山东省科技发展攻关项目和机械电子科技发展计划项目。该泵由山东省农机所设计、山东博兴县水泵厂试制,(据了解目前国内尚未有人研制700毫米以上大口径蜗壳式混流泵),于1994年1月通过部、省级鉴定。700HW—11型蜗壳式混流泵是根据我国九十年代国家级排灌机械新产品开发指南要求研制的新一代高效节能新产品,属国内首创,填补了国内空白。一、主要技术指标及设计
At present, the development of mixed-flow pumps at home and abroad has been very rapid. In the past, southern China used more of them, while there were fewer in the north. With the development of production, the advantages of using mixed flow pumps are increasingly recognized. “700HW-11 volute mixed-flow pump” is the project of scientific and technological development of Shandong Province and the development plan of mechanical and electronic technology of Shandong Science and Technology Commission and the former Ministry of Machinery and Electronic Industry respectively issued in 1992. The pump by the Shandong Provincial Agricultural Machinery Design, Shandong Boxing County Pump Factory trial production, (It is understood that no one has developed more than 700 mm large-diameter volute mixed-flow pump), in January 1994 through ministerial and provincial appraisal. 700HW-11 volute mixed flow pump is a new generation of high efficiency and energy-saving new products developed according to China’s guidelines for the development of new-type irrigation and drainage machinery new products in the nineties. It is a pioneer in China and has filled the domestic blank. First, the main technical indicators and design