| 安装高度对折射式微喷头水力性能的影响 |
| 杨雯1; 朱德兰1,2; 张林2,3; 巩兴晖1; 杨丽慧1
|
| 2015
|
发表期刊 | 节水灌溉
|
卷号 | 2015期号:8页码:50-53 |
摘要 | 选取折射式微喷头,在200kPa工作压力下,测试0.5、1.0、1.5、2.0和2.5m安装高度下的单喷头水量
分布。利用surfer软件绘出单喷头水量分布等值线图,对图中喷头中心至喷灌强度为0.15mm/h等值线的距离,多
次测量取平均值,以确定射程。采用叠加法,计算出不同喷头间距下的组合均匀性系数。结果表明:随着喷头安装高
度的升高,射程增加,单喷头喷灌强度峰值降低。不同喷头安装高度下,最高组合均匀性系数对应的最佳喷头间距不
同,但均不超过0.9倍射程。0.5m喷头安装高度的射程最小、喷灌强度峰值最大、最高组合均匀性系数最低,为最不
利安装高度。 |
其他摘要 | A refractive micro-sprinkler was selected and the water distribution patterns of the individual sprinkler at 0.5,1.0,1.5,
2.0and 2.5mheight were tested under the work pressure of 200kPa.The water distribution contour maps of the individual sprinkler
were obtained by Surfer software.By repeatedly measuring the distance from the center of the sprinkler to the contour line,for
which the precipitation rate is 0.15mm/h,the wetted radius was obtained by calculating the average value of the distance values.
The combination uniformity coefficient with different combination distance values was calculated by using superposition method.The
results indicated that with the increase of sprinkler height,the wetted radius was increased and the maximum precipitation rate of the
individual sprinkler was reduced.The best combination distance for the maximum combination uniformity coefficient at different
heights was different,but they were all less than 0.9times of the wetted radius.The sprinkler height of 0.5mhad the shortest wetted
radius,the highest maximum precipitation rate and the lowest maximum combination uniformity coefficient,so it was the most
unfavorable. |
关键词 | 喷头
安装高度
射程
喷灌强度
组合均匀性系数
|
收录类别 | 中文核心期刊要目总览
|
语种 | 中文
|
文献类型 | 期刊论文
|
条目标识符 | sbir.nwafu.edu.cn/handle/361005/9594
|
专题 | 水保所知识产出(1956---)
|
作者单位 | 1.西北农林科技大学水利与建筑工程学院 2.西北农林科技大学中国旱区节水农业研究院 3.西北农林科技大学水土保持研究所
|
推荐引用方式 GB/T 7714 |
杨雯,朱德兰,张林,等. 安装高度对折射式微喷头水力性能的影响[J]. 节水灌溉,2015,2015(8):50-53.
|
APA |
杨雯,朱德兰,张林,巩兴晖,&杨丽慧.(2015).安装高度对折射式微喷头水力性能的影响.节水灌溉,2015(8),50-53.
|
MLA |
杨雯,et al."安装高度对折射式微喷头水力性能的影响".节水灌溉 2015.8(2015):50-53.
|
文件名:
|
安装高度对折射式微喷头水力性能的影响_杨雯.pdf
|
格式:
|
Adobe PDF
|
此文件暂不支持浏览
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论