论文部分内容阅读
由于水泵选型的理论和方法不对,使所选水泵在设计标准年份的效率最高,而大部分年份却处于低效区运行,浪费大量能源,值得重视。合理的水泵选型应满足以下原则:1.能满足灌溉排水的流量和扬程要求,即应保证在设计标准年份的扬程下,满足灌溉排水流量的要求;2.所选水泵在长期运行中,多年平均的装置效率最高,运行费用最低;3.按所选水泵建站,其工程投资和设备功率最小;4.
As the theory and method of pump selection is wrong, the selected pump will be the most efficient in design standard year, but most of the year will be operated in inefficient area, which is worth a lot of wasted energy. Reasonable selection of the pump should meet the following principles: 1. To meet the irrigation flow and head lift requirements, which should ensure that in the head of the design standard year to meet the requirements of irrigation and drainage flow; 2. The selected pump in the long run, The average efficiency of the device is the highest in many years and the operation cost is the lowest; 3.the construction investment and equipment power of the selected pump are the lowest;