摘要
在滴灌工程中,滴头是系统中的关键部件。压力补偿滴头具有出水流量不受压力变化影响、抗堵塞性较好、具有自冲洗功能等优点,已成为世界各国研发的热点。评价了管上孔口式、内镶片式和内镶圆柱式3种压力补偿滴头的压力补偿原理和结构形式,分析了其发展动向,并提出了提高我国压力补偿滴头研发水平的建议。
The pressure compensating emitter, which have the advantages of constant flow under the change of pressure, anti-clogging and self-cleaning performance, has become the research hot point in the world. The compensating theory and structure of three kinds of pressure compensating emitters, namely on-line orifice emitters, in-line flat emitters and in-line cylindrical emitters, were e- valuated in this paper. The development trend of pressure compensating emitters was analyzed and some suggestion for improving study ability on pressure compensating of China was presented, too.
出处
《节水灌溉》
北大核心
2006年第5期29-31,34,共4页
Water Saving Irrigation
基金
国家高技术研究发展计划("863"计划)专项(2002AA2Z4101)
关键词
滴灌
压力补偿滴头
结构分析
pressure compensating emitters
structure
analysis
