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当前位置: 首页 > 文章 > 6种文丘里施肥器吸肥性能比较分析 农业机械学报 2013,44 (4) 113-117+136
Position: Home > Articles > Comparative Analysis on Fertilization Performance of Six Venturi Injectors Transactions of the Chinese Society for Agricultural Machinery 2013,44 (4) 113-117+136

6种文丘里施肥器吸肥性能比较分析

作  者：
韩启彪;黄兴法;刘洪禄;吴文勇;范永申
单  位：
中国农业科学院农田灌溉研究所;中国农业大学水利与土木工程学院;北京市水利科学研究所
关键词：
文丘里施肥器;吸肥性能;吸肥量;入口流量;临界压差;临界流量
摘  要：
对北京地区微灌常用的6种文丘里施肥器进行了试验,在理论分析的基础上结合相关数据,建立了6种文丘里施肥器吸肥量、入口流量、临界流量和临界压差的回归模型并进行了比较分析。结果表明:进、出口压力直接影响了施肥器的吸肥量和入口流量,施肥器YR、RF对压力波动等不利工况较敏感,而AD系列和NF则更能适应波动的工作压力环境。NF和AD-1等临界压差小,工作区间大;而RF和YR工作区间小,只有临界压差达到进口压力1/2以后才可正常吸肥。文丘里施肥器的结构对其水力性能影响较大。
译  名：
Comparative Analysis on Fertilization Performance of Six Venturi Injectors
作  者：
Han Qibiao1,2 Huang Xingfa3 Liu Honglu4 Wu Wenyong4 Fan Yongshen1,2 (1.Farmland Irrigation Research Institute,Chinese Academy of Agricultural Sciences,Xinxiang 453002,China 2.Key Laboratory of Water-saving Agriculture of Henan Province,Xinxiang 453002,China 3.College of Water Resources and Civil Engineering,China Agricultural University,Beijing 100083,China 4.Beijing Hydraulic Research Institute,Beijing 100044,China)
关键词：
Venturi injector Fertilization performance Fertilizer suction amount Inlet discharge Critical pressure Critical discharge
摘  要：
An experiment on six Venturi injectors in Beijing was carried out.Based on theory studies,the differences of fertilization performance including fertilizer suction amount,the inlet discharge,the critical discharge and the critical pressure were analyzed and the regression models were built.It showed that the fertilizer suction amount and the inlet discharge were affected by the inlet and the outlet pressure directly.Domestic brands YR and RF were sensitive to the pressure fluctuation,while foreign models NF and AD could adjust to work environment better.The critical pressure of brands NF and AD-1 were very low,thus these models have a long working range.In contrast,the critical pressure of the models RF and YR got to a half of the inlet pressure for a normal fertilization,and this means they have a short working range.

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