Abstract：The variability of the diaphragm is the main factor for the pressure compensation emitter to achieve stable outflow under high pressure conditions. The characteristic parameters of the diaphragm and the interaction with the emitter housing will directly affect the overall performance of the emitter. In this paper, Supertif-03120-0003 pressure compensating emitter on the pipe manufactured by PLASTRO was used as the prototype, and the on-tube type water emitter test piece was fabricated with the help of(3DP)rapid prototyping technology and selecting silicone rubber elastic diaphragm. Through single factor and orthogonal test, the influence of different parameters of elastic diaphragm on the hydraulic performance of the emitter was studied. The relationship between the hydraulic performance of the emitter and the characteristic parameters of the elastic diaphragm was obtained via multiple comparison analysis. The result of this research shows that the optimal combination of low flow index is A3B4 when the thickness of diaphragm is 2.0 mm and the hardness is 60.
徐耀, 苏艳平, 杨培岭*, 任树梅, 李旭. 膜片对管上式压力补偿灌水器水力性能的影响[J]. 排灌机械工程学报, 2018, 36(8): 702-706.
XU Yao, SU Yanping, YANG Peiling*, REN Shumei, LI Xu. Impact of diaphragm parameters on hydraulic performance of pressure compensating emitter on the pipe. Journal of Drainage and Irrigation Machinery Engin, 2018, 36(8): 702-706.
[1]MARTINEZ V J, IBANEZ J, ALCALA F J, et al. The use of a hydrological-economic model to assess sustaina-bility in groundwater-dependent agriculture in drylands[J]. Journal of hydrology, 2011,402(1/2):80-91.[2]LI Jiusheng. Increasing crop productivity in an eco-friendly manner by improving sprinkler and micro-irrigation design and management: a review of 20 years′ research at the IWHR, China[J]. Irrigation and drai-nage,2018,67(1):97-112.[3]魏正英,苑伟静,周兴,等. 我国压力补偿灌水器的研究进展 [J]. 农业机械学报,2014,45(1):94-101. WEI Zhengying, YUAN Weijing, ZHOU Xing, et al. Research progress of pressure compensating emitters in micro-irrigation systems in china[J]. Transactions of the CSAE, 2014, 45(1): 94-101.(in Chinese)[4]龚时宏,李久生,李光永. 喷微灌技术现状及未来发展重点 [J]. 中国水利,2012(2):66-68. GONG Shihong,LI Jiusheng,LI Guangyong. The status quo of spray and focus on the future development of micro irrigation technology[J].China water resources,2012(2):66-68.(in Chinese) [5]袁寿其,李红,王新坤. 中国节水灌溉装备发展现状、问题、趋势与建议[J]. 排灌机械工程学报,2015,33(1):78-92. YUAN Shouqi,LI Hong,WANG Xinkun. Status,problems,trends and suggestions for water-saving irrigation equipment in China[J].Journal of drainage and irrigation machinery engineering,2015,33(1): 78-92.(in Chinese)[6]李令媛,朱德兰,张林. 补偿区结构参数对灌水器水力性能的影响[J]. 灌溉排水学报,2014,33(6):66-70. LI Lingyuan, ZHU Delan, ZHANG Lin. Effect of pressure compensation structural parameter on hydraulic performance of emitter[J]. Journal of irrigation and drai-nage, 2014, 33(6):66-70.(in Chinese)[7]魏正英,马胜利,周兴,等. 压力补偿灌水器水力性能影响因素分析[J]. 农业工程学报,2015,31(15):19-25. WEI Zhengying, MA Shengli, ZHOU Xing, et al. Influe-nce factors on hydraulic performance of pressure-compensating emitter[J]. Transactions of the CSAE, 2015, 31(15): 19-25.(in Chinese)[8]LI Y K,SONG P,PEI Y T,et al. Effects of lateral flushing on emitter clogging and biofilm components in drip irrigation systems with reclaimed water[J]. Irrigation science,2015,33(3):235-245.
