低压条件下滴灌带的水力特性及温度影响效应试验  

Experiment of Hydraulic Trait of Drip Irrigation Strap under Low Pressure and the Influence of Temperature on Emitter Discharge

作　　者：徐明金[1] 聂境[1] 葛旭峰[1] 罗菲[1] 范世峰 

机构地区：[1]新疆农业大学水利与土木工程学院,乌鲁木齐830052 [2]新疆坎儿井灌溉技术有限责任公司,乌鲁木齐830091

出　　处：《中国农村水利水电》2010年第12期8-10,共3页China Rural Water and Hydropower

基　　金：国家科技支撑计划项目(2007BAD38B00)资助

摘　　要：通过比较低压滴灌系统与常压滴灌系统,对滴灌带的水力特性及与温度的关系做了一些试验研究。结果表明:在同一条件下,小流量的滴灌带沿程的流量变化不大,滴头的流态指数与常压比较会有不同的变化。此外试验中发现:低压条件下滴灌带滴头流量受温度变化影响显著。In order to reveal hydraulic trait of drip irrigation strap and the influence of temperature to emitter discharge,the experiment compares the low pressure drip irrigation system with general pressure.The result shows that under the same conditions,low-discharge drip irrigation strap＇s emitter discharge has a little change along the distance.The emitter＇s flow regime exponent has some difference with normal-pressure.Besides,discovering temperature has a notable influence on the emitter discharge under low pressure.

关 键 词：低压 常规滴灌带 小流量滴灌带 温度 滴头流量 

分 类 号：S275.6[农业科学—农业水土工程]