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  2010, Vol. 28 Issue (3): 251-255    DOI: 10.3969/j.issn.1674—8530.2010.03.016
节水灌溉工程 最新目录 | 下期目录 | 过刊浏览 | 高级检索 Previous Articles  |  Next Articles  
微灌系统文丘里施肥器吸肥性能试验
严海军1, 初晓一1, 王敏1, 马泽远2
(1.中国农业大学 水利与土木工程学院, 北京 100083; 2.北京东方互联生态科技股份有限公司, 北京 100084)
Injection performance of  Venturi injector in micro-irrigation system
Yan Haijun1, Chu Xiaoyi1, Wang Min1, Ma Zeyuan2
(1.College of Water Conservancy and Civil Engineering,  China Agricultural University, Beijing 100083,  China; 2.Beijing East Interlink Eco-tech Co.Ltd., Beijing 100084, China)
 全文: PDF (466 KB)   HTML (1 KB)   输出: BibTeX | EndNote (RIS)      背景资料
摘要 为了研究微灌系统文丘里施肥器吸肥性能与结构参数的关系,对4种组合式喉管规格的某文丘里施肥器分别在0.10,0.15,0.20,0.25和0.30 MPa进口压力下进行了吸肥性能试验.研究结果表明,文丘里施肥器临界压差和最大压差与进口压力呈线性正相关关系,进口流量随着进口压力或进出口压差的升高而呈增大趋势;当出口与进口压力之比低于0.4时,随着喉管直径的减小、收缩角和扩散角的增大,吸肥流量与出口流量之比逐渐上升;而当压力比高于0.4时,吸肥流量与出口流量之比则呈相反的变化趋势.建立了吸肥性能与喉管几何尺寸及工作参数之间关系的回归模型,可为文丘里施肥器的设计和运行提供技术依据.
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
严海军
初晓一
王敏
马泽远
关键词文丘里施肥器   微灌   吸肥性能   试验     
Abstract: In order to study the relationship between the injection performance and the structural parameters of Venturi injector used in micro-irrigation system, injection performance tests of a kind of Venturi injector with four types of replaceable throat parts were conducted under inlet pressures of 0.10, 0.15, 0.20, 0.25 and 0.30 MPa, respectively. The results show that both the critical and maximum pressure differences are in positively linear relation with the inlet pressure. The inlet flow rate of the Venturi injector increases with the increasing of the inlet pressure or the difference between inlet and outlet pressures. As the ratio of outlet pressure to inlet pressure is less than 0.4, the ratio of injection rate to outlet flow rate increases with the decrease of the throat diameter and the increase of both the contraction and diffusion angles. As the ratio of outlet pressure to inlet pressure is greater than 0.4, the ratio of injection rate to outlet flow rate changes in an opposite trend. The established regression models describing the relationship between injection performance, throat geometry and working parameters can be used for design and operation of Venturi injector.
Key wordsVenturi injector   micro-irrigation   injection performance   test   
收稿日期: 2009-11-03; 出版日期: 2010-05-30
基金资助:

教育部长江学者和创新团队发展计划资助项目(IRT0657); 中央高校基本科研业务费专项资金资助项目(2009-2-12)

通讯作者: 严海军(1974-),男,浙江宁波人,副教授,博士(water220@cau.edu.cn),主要从事节水灌溉装备研究.   
作者简介: 初晓一(1986-),女,山东海阳人,硕士研究生(chuxiaowanzi@163.com),主要从事流体机械及工程研究.
引用本文:   
严海军, 初晓一, 王敏等. 微灌系统文丘里施肥器吸肥性能试验[J]. 排灌机械工程学报, 2010, 28(3): 251-255.
YAN Hai-Jun, Chu-Xiao-Yi, Wang-Min et al. Injection performance of  Venturi injector in micro-irrigation system[J]. Journal of Drainage and Irrigation Machinery Engin, 2010, 28(3): 251-255.
 
[1] 封俊, 沈雪民, 刘春和, 等. 文丘里滴灌施肥器水力性能的研究[J]. 节水灌溉,1992(1):41-43.
[2] Feng Jun, Shen Xuemin, Liu Chunhe, et al. Research on the hydraulic performance of Venturi injector in drip irrigation[J]. Water Saving Irrigation, 1992(1):41-43.(in Chinese)
[3] 沙毅, 侯素娟. 并联式文丘里管施肥器试验研究[J]. 排灌机械, 1995, 13(2):37-39.
Sha Yi, Hou Sujuan. Experimental research on applying fertilizer apparatus of parallel Venturi tubes[J]. Drainage and Irrigation Machinery, 1995, 13(2):37-39. (in Chinese)
[4] 侯素娟. 两段式文丘里泵施肥器的设计[J]. 排灌机械, 1995, 13(4):44-46.
Hou Sujuan. Design of Venturi injector with two components [J]. Drainage and Irrigation Machinery, 1995, 13(4):44-46. (in Chinese)
[5] 李百军, 毛罕平, 李凯. 并联文丘里管吸肥装置的研究及其参数选择[J]. 排灌机械, 2001, 19(1): 42-45.
Li Baijun, Mao Hanping, Li Kai. A study on the parallel connection Venturi tube and its parameter selection[J]. Drainage and Irrigation Machinery, 2001, 19(1): 42-45. (in Chinese)
[6] 金永奎, 夏春华, 方部玲. 文丘里施肥器系列的研制[J]. 中国农村水利水电, 2006(5):14-16.
[7] Jin Yongkui, Xia Chunhua, Fang Buling. Rearch and development of Venturi fertilizer applicator series[J]. China Rural Water and Hydropower, 2006(5):14-16. (in Chinese)
[8] 王淼,黄兴法,李光永. 文丘里施肥器性能数值模拟研究[J]. 农业工程学报, 2006, 22(7):27-31.
Wang Miao, Huang Xingfa, Li Guangyong. Numerical simulation of characteristics of Venturi injector[J]. Transactions of the CSAE, 2006, 22(7):27-31. (in Chinese)
[9] Lima Neto I E, De Melo Porto R. Performance of low-cost ejectors[J]. Journal of Irrigation and Drainage Engineering, 2004, 130(2):122-128.
[10] 龙新平, 程茜, 韩宁, 等. 射流泵空化流动的数值模拟[J]. 排灌机械工程学报, 2010, 28(1):7-11. 浏览
Long Xinping, Cheng Qian, Han Ning, et al. Numerical simulation on cavitating flow within jet pump[J]. Journal of Drainage and Irrigation Machinery Engineering, 2010, 28(1):7-11. (in Chinese) 浏览
[11] Reader-Harris M J, Brunton W C, Gibson J J, et al. Discharge coefficients of Venturi tubes with standard and non-standard convergent angles[J]. Flow Measurement and Instrumentation, 2001, 12(2): 135-145.
[12] Kranz W L, Eisenhauer D E, Parkhurst A M. Calibration accuracy of chemical injection devices[J]. Applied Engineering in Agriculture, 1996, 12(2):189-196.
[13] Ozkan F, Ozturk M, Baylar A. Experimental investigations of air and liquid injection by venturi tubes[J]. Water and Environment Journal, 2006, 20(3):114-122.
[14] Steven R. A dimensional analysis of two phase flow through a horizonally installed Venturi flow meter[J]. Flow Measurement and Instrumentation, 2008, 19(6):342-349.
[1] 谈明高, 王勇, 刘厚林, 吴贤芳, 王凯. 叶片数对离心泵内流诱导振动噪声的影响[J]. 排灌机械工程学报, 2012, 30(2): 131-135.
[2] 章少辉, 许迪, 李益农, 白美健. 二维撒施畦灌地表水流溶质运移模型:Ⅱ验证[J]. 排灌机械工程学报, 2012, 30(2): 231-236.
[3] 马中飞, 张于祥, 杨秀莉, 葛志林. 自吸式喷雾降尘性能试验[J]. 排灌机械工程学报, 2012, 30(1): 97-101.
[4] 肖若富, 吕腾飞, 王福军, 刘竹青. 双吸式双蜗壳泵隔板优化设计[J]. 排灌机械工程学报, 2011, 29(6): 477-482.
[5] 姚克恒, 刘世豪, 夏拥军, 彭卓敏, 朱继平. 开沟机作业功耗的正交试验分析及其优化设计[J]. 排灌机械工程学报, 2011, 29(6): 529-535.
[6] 马新华,李 浩,施卫东,邵 鑫. 闭式试验台水泵装置模型试验过渡过程[J]. 排灌机械工程学报, 2011, 29(5): 392-396.
[7] 陈 斌, 张克危, 施卫东, 吴 钢, 黄学军. 深水自吸式潜水曝气机的设计与试验[J]. 排灌机械工程学报, 2011, 29(5): 437-440.
[8] 周岭, 施卫东, 陆伟刚, 许荣军, 王川. 井用潜水泵导叶的正交试验与优化设计[J]. 排灌机械工程学报, 2011, 29(4): 312-315.
[9] 杨帆, 刘超, 汤方平, 周济人. 灌排双向立式泵装置内部水流压力脉动特性[J]. 排灌机械工程学报, 2011, 29(4): 316-321.
[10] 严海军, 初晓一. 喉管直径对文丘里施肥器性能影响的数值模拟[J]. 排灌机械工程学报, 2011, 29(4): 359-363.
[11] 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.
[12] 汤 跃, 赵 坤, 许文博. 基于Excel的水泵性能试验数据处理的VBA开发[J]. 排灌机械工程学报, 2011, 29(2): 123-126.
[13] 施卫东,孙新庆,陆伟刚,曹卫东,张 华. 矿用潜水电泵性能正交试验[J]. 排灌机械工程学报, 2011, 29(1): 6-10.
[14] 李 刚, 王晓愚, 白 丹. 地下滴灌中毛管水力计算的数学模型与试验[J]. 排灌机械工程学报, 2011, 29(1): 87-92.
[15] 严海军, 姚培培, 王 敏. 灌溉用压力调节器性能试验与受力分析[J]. 排灌机械工程学报, 2010, 28(6): 548-552.

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