王新坤,徐胜荣,樊二东,姚吉成,靳彬彬.全圆旋转射流喷头设计与水力性能试验[J].农业机械学报,2019,50(2):132-137,146.
WANG Xinkun,XU Shengrong,FAN Erdong,YAO Jicheng,JIN Binbin.Structure Design and Hydraulic Performance Test of Round Rotatory Jet Sprinkler[J].Transactions of the Chinese Society for Agricultural Machinery,2019,50(2):132-137,146.
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全圆旋转射流喷头设计与水力性能试验   [下载全文]
Structure Design and Hydraulic Performance Test of Round Rotatory Jet Sprinkler   [Download Pdf][in English]
投稿时间:2018-07-26  
DOI:10.6041/j.issn.1000-1298.2019.02.014
中文关键词:  射流喷头  正交试验  高速摄影  水力性能试验  水量分布
基金项目:国家自然科学基金项目(51579116)和江苏省科技计划项目(BE2018373)
作者单位
王新坤 江苏大学 
徐胜荣 江苏大学 
樊二东 江苏大学 
姚吉成 江苏大学 
靳彬彬 江苏大学 
中文摘要:为了提高农业节水灌溉效率,提出了一种全圆旋转射流喷头。确定了喷头的CFD数值模拟方法,选取深宽比、位差比、劈距比、侧壁倾角作为试验因素,以射流附壁切换频率和流量振幅为指标,通过正交试验得到了喷头内流道的优化结构。通过高速摄影技术对喷头的射流附壁切换频率进行测定,同时监测喷头的进口流量,结果表明,模拟所得的流量压力关系与试验结果基本一致,相对误差范围为2.1%~4.0%,射流附壁切换频率随进口压力的变化趋势基本相同,相对误差范围为7.7%~22.2%。当进口压力为0.15、0.20、0.25MPa时,分别研究了PY210A型摇臂式喷头和射流喷头的水力性能,其中射流喷头的流量较小(1.19~1.53m3/h)、射程较远(13.0~15.7m)、平均喷灌强度较小(2.85~3.63mm/h),转动周期较短(81~105s),摇臂式喷头的喷洒水量呈“马鞍形”分布,射程近处和远处的喷洒水量相对较大,射流喷头的喷洒水量呈“三角形”分布,喷洒水量随射程增加而减小。
WANG Xinkun  XU Shengrong  FAN Erdong  YAO Jicheng  JIN Binbin
Jiangsu University,Jiangsu University,Jiangsu University,Jiangsu University and Jiangsu University
Key Words:jet sprinkler  orthogonal test  high-speed photography  hydraulic performance test  water distribution
Abstract:In order to improve the efficiency of water saving irrigation in agriculture, the round rotatory jet sprinkler was proposed. The CFD numerical simulation method of the sprinkler was determined. Depth to width ratio (k/w), potential difference ratio, split distance ratio and side wall angel were selected as the experimental factors, and frequency of wall attached switching and flow amplitude were taken as the indexes. The optimum structure of internal channel of sprinkler was obtained by orthogonal test. By means of high speed photography technology, the frequency of wall attached switching of jet was measured, and the inlet flow rate of sprinkler was monitored. The results showed that the simulated flow pressure relation was basically consistent with the experimental results. The relative error range was from 2.1% to 4.0%, and the variation trend of the frequency of wall attached switching of jet with the inlet pressure was basically the same, and the relative error range was from 7.7% to 22.2%. When the inlet pressure was 0.15MPa, 0.20MPa and 0.25MPa, the hydraulic properties of PY210A impact sprinkler and jet sprinkler were studied, respectively. The flow rate of jet sprinkler was small (1.19~1.53m3/h), and the range was long (13.0~15.7m), the sprinkler irrigation intensity was small (2.85~3.63mm/h), and the rotation period was short (81~105s). The precipitation of impact sprinkler was “saddle”, the precipitation near and far away was relatively large, the precipitation of jet sprinkler was “triangle”, and the precipitation was decreased with the increase of range. The research provided a reference for the structure design and hydraulic performance optimization of the round rotatory jet sprinkler.

Transactions of the Chinese Society for Agriculture Machinery (CSAM), in charged of China Association for Science and Technology (CAST), sponsored by CSAM and Chinese Academy of Agricultural Mechanization Science(CAAMS), started publication in 1957. It is the earliest interdisciplinary journal in Chinese which combines agricultural and engineering. It always closely grasps the development direction of agriculture engineering disciplines and the published papers represent the highest academic level of agriculture engineering in China. Currently, nearly 8,000 papers have been already published. There are around 3,000 papers contributed to the journal each year, but only around 600 of them will be accepted. Transactions of CSAM focuses on a wide range of agricultural machinery, irrigation, electronics, robotics, agro-products engineering, biological energy, agricultural structures and environment and more. Subjects in Transactions of the CSAM have been embodied by many internationally well-known index systems, such as: EI Compendex, CA, CSA, etc.

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