外文翻译--恒压供水的控制与节能的探索.doc

毕业设计论文翻译资料信息与电子工程系工业电气自动化专业04级1班课题名称S7200PLC控制的变频调速恒压供水系统设计毕业设计论文起止时间2007年3月1日～6月10日共17周学生姓名赵晋学号3040221123指导教师黄云龙、朱秋琴、廖东进报告日期20073１浙江工业大学浙西分校信息与电子工程系毕业设计（翻译资料）ENGLISHPART1THECONTROLANDENERGYSAVINGOFAUTOMATICWATERSUPPLYSYSTEMABSTRACTBASEDONESIMPLEANALYSISOFTHEMETHODSFORWATERSUPPLYUSEDDOMESTICALLYANDABROAD,THISPAPERDISCUSSESTHEPRINCIPEANDSYSTEM’SSTRUCTUREOFAUTOMATICWATERSUPPLYSYSTEMBYUSINGFREQUENCYCONVERSIONSPEEDREGULATIONINDETAILTHENTHESYSTEM’SADVANTAGESAREDISCUSSEDANDSOMEKEYPROBLEMSTHATSHOULDBEPAYATTENTIONTODESIGNINGAREPRESENTEDKEYWORDFREQUENCYCONVERSIONSPEEDREGULATION；WATERSUPPLYWITHSTABLEPRESSUREPIDREGULATOR1、FOREWORDATPRESENT,SUPPLYWATERINRESIDENTIALAREAANDLIFEOFTHESKYSCRAPEROFOURCOUNTRYGENERALLYADOPTTHEWAYCOMMONFREQUENTLYITHASHEAVYENERGYCONSUMPTION,HIGHNOISE,ANDTHEREHASAGREATDEALOFQUESTIONSINTHESOURCEOFWATER,SUCHASSECONDARYPOLLUTIONETCANDITISAKINDOFCOMPARATIVELYIDEALMODETOADJUSTTHEWATERSUPPLYDEVICECONTROLLEDRAPIDLYWITHFREQUENCYCONVERSIONENTERINGTHEMIDDLEANDLATERPERIODSOFTHE1990S,AS