大流量压力补偿式滴头的开发研制

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1、F890二67国内图书分类号：TH单位代码：5学号：22密级：oo£j公oooo-TF北京工业大学工程硕士学位论文题目太逾量压左盐偿式瀆达箧五筮班剑英文并列题目从△盟！』！！从！堕曼曼女！四！盟旦！！！IQ从QEH!鱼竖二E!!』21£堕5墨！』塞垦CO吁ENSATINGEMITTER研究生姓名：塑蕴蚕工程领域：扭越工捏研究方向：扭撼遮豉丛堡地导师姓名：蚕嚣抖职称：副熬握副导师：王堑垃职称：妾堡王猩域论义报告提交口期：授予单位名称和地址：2Q堕生！旦2Q旦jE立王些厶里学位授，口期：——aE垂更型CD些：E巫围！业芷thepdr•lpequ•lacc0grea0fthrat•Jc0ndrnop

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3、时flc0unWileswh■lch■lsunabletosat■lstherequ■lrement0fwatersupplyecologica1enVirOm?entsuchasmeecoI1omicforest,gmssetc.intheshowecompesatisborderdistrictinXinjiang.TheinvestigationresuItathomeandabmaddthatmela唱eflowpressurensatingdripirrigationcouldfytheabove—mentionedrequirements；itisaspecificproducta

4、pp1icab1eflortheabove—menti0nedarea,Thedeve1opmentoft11epressurec0mPensatingd丘BiFfigationpipehasthepmm■1nentsuperioritysuchasaboVe41mf1uXre1iab1epressurecompensatingperfb肌ance,sma11nuxdeviation,11ighprcssureendurance,longservice1ifeandsuibb1eforgreattemind■1f诧rence.Thispaperintroduces]办epr0cessingco

5、Wseofane、v—k{ndp『0duc^onofdjipjrrigation,tilespec■1a1designprincipleofthedripperWh•1chovercomesthedefcctof仃aditi曲a1pressurecompensatingdripperwhichc0u1dnotflowinthehi曲pressure,nespec•1a1designed嘶ncanbeinstailedontheautomatic1ineormanua1ly夙ed•1n00r)kingsite.Thereisafilteratthe■1n1et.Thefi1terwasdesig

6、nedaccordint0theuniquedeVisedp一ncip]e0fautomatica11yshakjngandcieanjngVa]Vecoreandithasas廿ongperfomance0sfmrae1s1istingj锄.Theproductattributesbu1ksavingmaterials,decreasingpr•1ce,andcanbeusedontheFoundorbur■1edintheland.Thjspaperdiscussest}1emanufactureprocessofmeValVethedmpperandt11ecapi1]arytubc0r

7、eew•1也thesiliconembber,thepolyethylenasthcmainrawmaterial.Theexplorati0andtheoptimizationofinthereactionpr0cessconditionwasalsoaccomplishpaper.ThebesteraRconditionoe■1nthefmeVa1vecoreis:ComponentA:Com