乔〓乐,李永业.不同出水孔形状下的闸管灌配水装置配水特性研究[J].水电能源科学,2018,36(6):179-181
不同出水孔形状下的闸管灌配水装置配水特性研究
Study on Water Distribution Characteristics of Gated Pipe Irrigation Device under Different Outlet Hole Shape
  
DOI:
中文关键词:  闸管灌  出水孔形状  配水装置  配水特性
英文关键词:gated pipe irrigation  outlet hole shape  water distribution device  water distribution characteristics
基金项目:国家自然科学基金项目(51109155,51179116);山西省自然科学基金项目(2015011067)
作者单位
乔〓乐,李永业 太原理工大学 水利科学与工程学院 山西 太原 030024 
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中文摘要:
      为促进闸管灌溉技术的推广,设计了方孔型和圆孔型两种不同出水孔形式的配水装置,并研究了两种配水装置的开度、压力水头、流量之间的关系。结果表明,两种配水装置在相同配水口开度时,配水流量均随压力水头的增大而增大,呈乘幂函数关系,且开度对压力敏感系数的影响不大;在相同压力水头时,随着配水开度的增大,两种配水装置的配水流量均增大;相对于方孔型配水装置,圆孔型配水装置的压力敏感系数更稳定,流量可调节范围大;两种配水装置的流量系数仅与开度有关,可通过调节开度与压力水头准确调节流量。
英文摘要:
      In order to promote the popularization of gated pipe irrigation technology, this paper designed two kinds of water distribution devices including square hole water distribution device and round hole water distribution device. The relationship between opening degree, pressure head and discharge of two water distribution devices was obtained by test. The results show that the flow rate of the two devices increases with the increase of the pressure head when the opening degree of the two devices is constant, and it appears the power function; the opening degree has little impact on the pressure sensitivity coefficient. When the pressure head is constant, the distribution flow increases with the opening of the water outlet. Compared with the square water outlet, the pressure sensitivity coefficient of the circular water outlet is more stable and the flow adjustable range is larger. The flow coefficients of the two water distribution devices are only related to the opening degree, and the flow can be accurately adjusted by the opening and the pressure head.
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