排灌机械工程学报
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排灌机械工程学报  2010, Vol. 28 Issue (6): 548-552    DOI: 10.3969/j.issn.1674—8530.2010.06.018
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灌溉用压力调节器性能试验与受力分析
严海军, 姚培培, 王  敏
(中国农业大学 水利与土木工程学院, 北京 100083)
Performance test and force analysis of pressure regulator used in irrigation system
Yan Haijun, Yao Peipei, Wang Min
(College of Water Conservancy and Civil Engineering, China Agricultural University, Beijing 100083, China)
 全文: PDF (374 KB)   HTML (1 KB)   输出: BibTeX | EndNote (RIS)      背景资料
摘要 为了研究灌溉系统压力调节器的工作特性与结构参数的关系,对7种内置弹簧式规格的低流量压力调节器进行了调压特性试验,对压力调节器的弹簧参数与出口预置压力的关系以及内部运动部件的受力情况进行了分析.结果表明,压力调节器的出口预置压力越低,调压性能越优良,测得的临界工作压力与出口预置压力之差随着出口预置压力的增大而增大,并非常数0.034 MPa;随着出口预置压力的上升,内置弹簧丝直径越粗,弹簧自由长度越短,其弹簧刚度系数越大;压力调节器调节组件所受的初始弹簧力和最大弹簧力与出口预置压力存在近似的线性关系,而且在向压力调节器进口端运动的过程中,调节组件所受的弹簧力占其出口所受水压作用力从57.9%逐渐增大至66.5%,而密封圈摩擦力和橡胶膜片变形力之和占出口所受水压作用力则从39.9%下降至31.3%.
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关键词压力调节器   灌溉系统   性能试验   结构   静力学分析     
Abstract: In order to study the relationship between the pressure regulating properties and the structural parameters of pressure regulator used in irrigation system, tests on the pressure regulating properties of seven low flow types of pressure regulators integrated with springs were conducted. The relationship between the spring parameters and the preset outlet pressure, and the forces acting on the builtin moving parts were also analyzed. The results showed that pressure regulator with lower preset outlet pressure has higher performance of regulating. The difference between measured critical working pressure and preset outlet pressure increases with the preset outlet pressure and is not equal to a constant of 0.034 MPa. As the preset outlet pressure increases, the spring stiffness constant increases with a larger spring diameter and a shorter spring natural length. Both the initial and maximum spring forces are in positive linear relationship with the preset outlet pressure. As well, when the regulating part moves toward the inlet of the pressure regulator, the ratio of spring force to hydrostatic pressure exerting on the outlet crosssection of the regulating part increases with an average from 57.9% to 66.5%, and the sum of friction force of the sealing part and the deformation force of rubber diaphragm decreases with an average from 39.9% to 31.3%.
Key wordspressure regulator   irrigation system   performance test   structure   statics analysis   
收稿日期: 2010-03-19; 出版日期: 2010-11-30
基金资助:

中央高校基本科研业务费专项资金资助项目(2009-2-12,2009-1-92)

通讯作者: 严海军(1974-),男,浙江宁波人,副教授,博士(yanhj@cau.edu.cn),主要从事节水灌溉装备研究.    
作者简介: 姚培培(1983-),女,河北衡水人,硕士研究生(yaopeipei1984@yahoo.cn),主要从事流体机械及工程研究.
引用本文:   
金,燕,刘等. 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.
JIN ,YAN ,LIU et al. Performance test and force analysis of pressure regulator used in irrigation system[J]. Journal of Drainage and Irrigation Machinery Engin, 2010, 28(6): 548-552.
 
[1] 田金霞,龚时宏,李光永.滴灌系统中压力调节器应用的经济性分析[J].灌溉排水学报,2004,23(4):55-57.Tian Jinxia,Gong Shihong,Li Guangyong.Economic analysis of pressure regulators in the drip irrigation system[J].Journal of Irrigation and Drainage,2004,23(4):55-57.(in Chinese)
[2] 王新坤.微灌毛管进口流量调节器应用的经济性分析[J].排灌机械,2008,26(2):57-60.Wang Xinkun.Economic analysis on application of discharge regulator in micro-irrigation lateral inlet[J].Drainage and Irrigation Machinery,2008,26(2):57-60.(in Chinese)
[3] Lamaddalena N,Pereira L S.Assessing the impact of flow regulators with a pressure-driven performance analysis model[J].Agricultural Water Management,2007,90(1/2):27-35.
[4] 余晓明,茅忠明,孔彪龙.减压阀性能试验与内部流场数值计算[J].上海理工大学学报,2009,31(2):183-189.Yu Xiaoming,Mao Zhongming,Kong Biaolong.Computer assistant test and numerical simulation analysis for pressure reduing valve[J].Journal of University of Shanghai for Science and Technology,2009,31(2):183-189.(in Chinese)
[5] Rami E G,Jean-Jacques B,Bruno D,et al.Modelling of a pressure regulator[J].International Journal of Pressure Vessels and Piping,2007,84(4):234-243.
[6] Tesar V.Extremely simple pressure regulator-computation studies[J].Chemical Engineering Journal,2009,155(1/2):361-370.
[7] 田金霞,龚时宏,李光永,等.微灌压力调节器参数对出口预置压力影响的研究[J].农业工程学报,2005,21(12):48-51.Tian Jinxia,Gong Shihong,Li Guangyong,et al.Impacts of pressure regulator parameters on preset pressure in micro-irrigation system[J].Transactions of the CSAE,2005,21(12):48-51.(in Chinese)
[8] 臧丽花,牛文全,吴普特.低压滴灌系统大流量压力调节器的研制[J].西北农林科技大学学报:自然科学版,2006,34(7):142-146.Zang Lihua,Niu Wenquan,Wu Pute.Development of the pressure regulator for large flow in lower-pressure drip irrigation system[J].Journal of Northwest Sci-Tech University of Agriculture and Forestry:Natural Science Edition,2006,34(7):142-146.(in Chinese)
[9] Nelson Irrigation Corporation.Pressure regulator literature[EB/OL].[2010-03-01].http://www.nelsonirrigation.com/products/index.cfm?id=11&speci-ficquery=1.
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