JP50卷盘喷灌机水涡轮水力性能试验  

Performance Test of Water Turbine of JP50 Reel Sprinkler

作　　者：汤跃[1] 朱相源 梅星新[1] 顾哲[1] 

机构地区：[1]江苏大学流体机械及工程技术研究中心,江苏镇江212013

出　　处：《中国农村水利水电》2014年第2期26-29,共4页China Rural Water and Hydropower

基　　金：国家863高技术研究发展计划(2011AA100506);江苏省农业科技支撑计划(BE2012385)

摘　　要：为了掌握国产卷盘喷灌机水涡轮水力性能和能耗,构建了一种试验装置,它由供水泵、制动器、扭矩-转速传感器、测量仪组成。试验时调节制动器来改变负载大小从而调节水涡轮转速,通过测量流量以及进出口压力,得出水涡轮水头、水功率,扭矩仪测出转矩和转速等,从而得到水涡轮在各工况下的效率。试验分别测得了水涡轮在7种转速下的特性曲线,得出水涡轮的高效区范围,高效区功率大小,随着转速的降低,高效区向小流量偏移。试验结果说明,国产JP50卷盘喷灌机的水涡轮效率较低,有很大的节能空间。A testing apparatus is built. In order to grasp hydraulic performance and energy consumption of the domestic water turbine. The testing apparatus consists of pumps,hysteresis brakes torque meter, flowmeter. Under a certain working condition,we can adjust the brake to change the size of loads, then we can regulate the water turbine speed. By measuring the flow rate, inlet pressure and outlet pressure of water turbine, the head of turbine can be obtained by the Bernoulli equation, then we can work out water pow- er. The torque meter measures torque, speed, which results in different hydraulic turbine efficiency of each working conditions. The experiment measures characteristic curves of 7 kinds of speeds. And then we get the range of high efficiency and the size of capacity. Besides, with the speed reduction, high effective area shift to smaller flow area. Experimental results show, turbine efficiency of do- mestic JPS0 reel sprinkling irrigation machine is lower, there is a great energy-saving space.

关 键 词：卷盘喷灌机 水涡轮 水力性能 

分 类 号：S277.94[农业科学—农业水土工程]