摘要
为解决现有虹吸技术在应用于农业灌溉中存在的进水口易脱离水面、管内空气累积减弱虹吸效果、水资源利用率不高等问题,研发一种多功能虹吸式灌溉装置并将其应用于小型农业水利工程中.针对虹吸管顶端的虹吸管顶端存在负压的特点,以及排气段排气困难情况,利用压强差实现普通排气阀无法实现的自动排气功能.因此在应用于实际农田灌溉工程中,多功能虹吸式灌溉装置能取代传统的开口闸门工程,节省电泵的运作开支,相比普通虹吸管具有更高的实用价值,有助于促进农田灌溉规范化高效化发展.
The existing siphon device applied in agricultural irrigation is easy to escape from the water surface, and the air accumulation in the pipe results in poor siphon effect and low utilization rate of water resources. A multi-functional siphon irrigation device is developed and applied in small agricultural water conservancy projects. Aiming at the negative pressure in siphon top and the exhausting problem in exhausting section, the automatic exhausting function is realized by pressure difference, which is hard to be realized by common exhausting valve. Therefore, the so-called multifunctional siphon irriga-tion device can be applied in actual irrigation projects to replace the traditional opening gate projects, with lower operating expenses for the electric pump and high practical value compared with ordinary siphon, promoting the efficient development of standardized farmland irrigation.
出处
《浙江水利水电学院学报》
2017年第3期37-40,共4页
Journal of Zhejiang University of Water Resources and Electric Power
基金
浙江省自然科学基金资助项目(LY17D030001)
关键词
农业灌溉
虹吸
多功能
排气
压强差
实用价值
agricultural irrigation
siphon
multi-function
exhaust
pressure difference
practical value
