排灌机械工程学报
   首页  学报介绍  编 委 会  作者园地  征订启事  编校法规  编读往来  录用公告  广告合作   行业新闻  留  言  English 
排灌机械工程学报  2013, Vol. 31 Issue (6): 534-539    DOI: 10.3969/j.issn.1674-8530.2013.06.015
农业水土工程 最新目录 | 下期目录 | 过刊浏览 | 高级检索 Previous Articles  |  Next Articles  
精确灌溉喷头变量调节器结构参数设计
韩文霆, 周龙, 吴普特, 刘文帅, 李星恕, 崔利华

(1.西北农林科技大学机械与电子工程学院, 陕西 杨凌 712100; 2.中国科学院水利部水土保持研究所, 陕西 杨凌 712100)
Structural parameter design for variable regulatorsinprecision irrigation sprinklers
(1.College of Mechanical and Electronic Engineering, Northwest A&F University, Yangling, Shaanxi 712100, China; 2.Institute of Soil and Water Conservation, CAS&MWR, Yangling, Shaanxi 712100, China)
 全文: PDF (36624 KB)   HTML (1 KB)   输出: BibTeX | EndNote (RIS)      背景资料
摘要 为使喷头能根据灌溉面积形状变化的要求实现喷洒域和喷洒量同步可控,提出一种精确灌溉喷头变量喷洒调节器的设计.该变量调节器采用上阻水片和下阻水片式结构,上下阻水片由中央通孔和扇形通孔及扇形阻水片组成.喷头转动时上阻水片和下阻水片发生相对转动,导通时过水面积增大,射程增加,封闭时过水面积减小,射程降低.设计了使喷头能量损失达到最小的扇形通孔中心角及中央通孔等的结构参数.采用水流运动的局部阻力理论设计了变量调节器的上下阻水片中央通孔的直径.结果表明:研究的变量调节器过水通孔的结构和参数可以保证过水断面阻力损失最小,通过射程及水量分布试验,发现其射程周线由圆形变为近似方形,射程最大时基本能达到原喷头射程,水量分布较为均匀,能够满足喷头流量和射程的变化规律按需求控制,实现喷头的变量喷洒精确灌溉.
服务
把本文推荐给朋友
加入我的书架
加入引用管理器
E-mail Alert
RSS
作者相关文章
韩文霆
周龙
吴普特
刘文帅
李星恕
崔利华
关键词喷头   精确灌溉   变量喷洒   局部阻力   结构设计     
Abstract: In order to simultaneously control the spray field and volume of sprinklers in accordance with various shapes of irrigation area, a variable regulator design for precision irrigation sprinklers is proposed. The variable regulator was constructed with upper and lower waterblocking pieces, each of which comprises a central throughhole as well as fanshaped throughholes and fanshaped waterblocking pieces. As the sprinkler rotates, the upper and lower waterblocking pieces rotate in opposite directions. In conducting, both the watercarrying area and spray range increase; when it is closed, both the watercarrying area and spray range decrease. In this study, the structural parameters, including the central angle of the fanshaped and central throughholes for minimizing the sprinkler energy loss, were designed; based on the local resistance theory of water movement, the central throughhole diameters for the upper and lower waterblocking pieces were also designed. The results show that the variable regulator designed in this study can guarantee the minimal resistance loss at watercarrying cross section; through spray range and watercarrying area testing, it is found that the contours of sprayed areas has transformed from circles to approximately squares, with the largest range approaching closely the original nozzle range and the water distribution being even, which can meet the demand of controlling spray flow and spray range as they vary and realize variablerate precision irrigation.
Key wordssprinkler   precision irrigation   variable spraying   local resistance   structure design   
收稿日期: 2013-01-05; 出版日期: 2013-06-25
基金资助:

“十二五”国家科技支撑计划项目(2011BAD29B08); 国家自然科学基金资助项目(51079140); 教育部、国家外国专家局“111”计划项目(B12007)

通讯作者: 吴普特(1963—),男,陕西杨凌人,研究员,博士生导师(通信作者,scipapers@126.com),主要从事农业水土资源高效利用技术研究.   
作者简介: 韩文霆(1972—),男,内蒙古五原人,副研究员,博士(hanwt2000@126.com),主要从事精确灌溉技术与装备研究.
引用本文:   
韩文霆,周龙,吴普特等. 精确灌溉喷头变量调节器结构参数设计[J]. 排灌机械工程学报, 2013, 31(6): 534-539.
HAN Wen-Ting,ZHOU Long,WU Pu-Te et al. Structural parameter design for variable regulatorsinprecision irrigation sprinklers[J]. Journal of Drainage and Irrigation Machinery Engin, 2013, 31(6): 534-539.
 
[1] Ohayon S. Automatic adjustable sprinkler for precision irrigation:US,6079637[P]. 2000-06-27.
[2] 郝培业. 六方(四方)型摇臂式喷头试验研究(一)[J]. 节水灌溉, 2003(2):25-26.
[3] Hao Peiye. The reacher of sixparty(square) sprinkler experiment(one)[J]. Water Saving Irrigation, 2003(2):25-26.(in Chinese)
[4] 韩文霆,吴普特,冯浩,等.非圆形喷洒变量施水精确灌溉喷头综述[J].农业机械学报,2004,35(5):220-224.
Han Wenting,Wu Pute,Feng Hao,et al.Varibalerate sprinklers for precision irrigation on irregular boundary area [J]. Transactions of the Chinese Society for Agricultural Machinery,2004,35(5):220-224.(in Chinese)
[5] 韩鑫, 郝培业.方形喷洒域摇臂式喷头喷洒机理分析[J].农业机械学报,2005,36(3):40-43.
Han Xin, Hao Peiye. Analysis of spraying mechanism of a whirl sprinkler with square spray field[J]. Transactions of the Chinese Society for Agricultural Machinery,2005,36(3):40-43.(in Chinese)
[6] 袁寿其,朱兴业,李红.全射流喷头内部流场计算流体动力学数值模拟[J].农业机械学报,2005,36(10):46-49.
Yuan Shouqi,Zhu Xingye,Li Hong.Numerical simulation of inner flow for complete fluidic sprinkler using computational fluid dynamics [J]. Transactions of the Chinese Society for Agricultural Machinery,2005,36(10): 46-49. (in Chinese)
[7] 魏洋洋,袁寿其.异形喷嘴变量喷头水力性能试验[J]. 农业机械学报,2011, 42(7): 70-74.
Wei Yangyang,Yuan Shouqi. Hydraulic performance experiment of the variablerate sprinkler with noncircle nozzle[J]. Transactions of the Chinese Society for Agricultural Machinery, 2011,42(7): 70-74. (in Chinese)
[8] 韩文霆,吴普特,冯浩,等.仿形喷洒变量施水精确灌溉技术研究进展[J]. 农业工程学报,2004, 20(1):16-19.
Han Wenting, Wu Pute, Feng Hao, et al. Review on irrigated area profile modeling and variablerate precision sprinkle irrigation technique[J]. Transactions of the CSAE, 2004, 20(1): 16-19.(in Chinese)
[9] 韩文霆,吴普特,冯浩,等.变量喷头实现均匀喷灌的研究[J].农业工程学报,2005,21(10):13-16.
Han Wenting, Wu Pute, Feng Hao, et al. Theoretical study on variablerate sprinklers for high uniformity precision irrigation [J]. Transactions of the CSAE, 2005, 21(10): 13-16. (in Chinese)
[10] 王云中. 一种喷灌喷头:中国,982328842[P].1999-11-03.
[11] Sadler E J, Evans R G, Buchleiter G W. Sitespecific variablerate precision irrigation[J]. Irrigation Journal, 2001(6):20-24.
[12] Hills D J, Barragan J. Application uniformity for fixed and rotating spray plate sprinklers[J]. Transactions of ASAE, 1998, 14(1): 33-36.
[13] Sudheer K P, Panda R K. Digital image processing for determining drop sizes from irrigation spray nozzles[J]. Agricultural Water Management, 2000, 45(2): 159-167.
[14] Schneider A D, Howek T A. LEAP and Spray Irrigation for Grain Crops [J]. Journal of ASCE, 1999, 125(4):167-172.
[15] Ravindra V K,Rajesh P S,Pooran S M.Optimal design of pressurized irrigation subunit[J]. Journal of Irrigation and Drainage Engineering,2008,134(2):137-146.
[16] Alfre J B. Adjustable pattern irrigation system: US, 6834814[P]. 2004-12-28.
[1] 王超, 李红, 杨炎财, 陈超, 徐敏. 双向步进式全射流喷头工作稳定性[J]. 排灌机械工程学报, 2012, 30(3): 368-372.
[2] 陈超, 李红, 袁寿其, 王超. 出口可调式变量喷头喷灌均匀性[J]. 排灌机械工程学报, 2011, 29(6): 536-541.
[3] 朱兴业, 蔡 彬, 涂 琴. 轻小型喷灌机组逐级阻力损失水力计算[J]. 排灌机械工程学报, 2011, 29(2): 180-184.
[4] 孙晓锋, 杨志刚, 姜德龙. 两种双腔串联压电泵结构设计与性能比较[J]. 排灌机械工程学报, 2011, 29(1): 31-34.
[5] 仇宝云, 裴 蓓, 申 剑, 冯旭松, 冯晓莉. 灯泡贯流泵机组支撑形式比较[J]. 排灌机械工程学报, 2011, 29(1): 61-66.
[6] 郑 源, 张丽敏, 尹义武, 李 玺. 冷却塔中新型混流式水轮机设计[J]. 排灌机械工程学报, 2010, 28(6): 484-487.
[7] 向清江, 袁寿其, 李红, 刘俊萍. 全射流喷头射流元件附壁频率[J]. 排灌机械工程学报, 2009, 27(4): 232-236.
[8] 何红勤, 袁寿其, 袁建平, 张杰, 刘晓凡. 运水烟罩内折射式喷头性能参数分析及试验[J]. 排灌机械工程学报, 2009, 27(4): 247-250.
[9] 何红勤, 袁寿其, 张杰, 刘晓凡, 顾伟华. 运水烟罩内折射式喷头正交试验[J]. 排灌机械工程学报, 2009, 27(3): 181-183.

江苏大学梦溪校区(镇江市梦溪园巷30号)图书馆5楼 0511-84440893 传真0511--84440033
Copyright 江苏大学杂志社 2010-2015 All Rights Reserved