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pai guan zhan she bei geng xin he ji shu gai zao jie neng qian li da
Author(s): 
Pages: 20-21
Year: Issue:  2
Journal: Farm Machinery

Keyword:  五十年代节能潜力设备更新技术改造吸水池进水条件泵效率淹没深度压力脉动叶轮叶片;
Abstract: <正> 在现有的排灌站中,有许多是五十年代和六十年代建的,据统计安徽省这种泵站约占1/3。这些泵站,一般已运行15年至20年,设备已陈旧老化,机泵效率过低,浪费能源严重。改进办法如下: 一、更新水泵五十年代产的PV50型轴流泵与七十年代产的20ZLB—70型轴流泵比较,配套功率都是55千瓦,扬程一样时,PV50的流量比20ZLB—70的少7~22%,
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