長距離大型區(qū)域重力流輸水系統(tǒng)水錘防護計算研究.pdf

1、㈣㈣㈣㈥㈣Y1528547分類號：TU99該孝夫海碩士學(xué)位論文長距離大型區(qū)域重力流輸水系統(tǒng)水錘防護計算研究導(dǎo)師姓名職稱申請學(xué)位級別論文提交日期學(xué)位授予單位朱曉璩楊玉思副教授工學(xué)碩士學(xué)科專業(yè)名稱2009年4月25日論文答辯日期長安大學(xué)市政工程2000年5月28日答辯委員會主席王社平學(xué)位論文評聞人王彤韓大鵬AbstractWithdevelopmentofcityconstructionsandtheimprovementofpeople’

2、Slivinglevel，moreandmorelargelongdistancewatertransferprojectsappearthesafetyofwatertransportationattractspeople’SattentionAsanenergysavingandefficientwatertransportationpipelinesystem，thesafetyoflongdistanceandlarge—sca

3、leregionalwatergravitationaltransportationpipelinesystemalsoattractspeople’SattentionTheeffectivemeasurestolongdistanceandlarge—scaleregionalwatergravitationaltransportationpipelinesystemareproposedbysimulationofthistype

4、’SwaterhammerprotectioninthearticleInthepaperbasedondomesticandintemationaldevelopments，thetheoryofnumericalcalculationofwaterhammerisshown，severalboundaryconditionsoflongdistanceandlarge—scaleregionalwatergravitationalt

5、ransportationpipelinesystemaregivenThispaperoutlinesseveralofpatternsofgas—liquidtwophaseflowandpatterntransformationonthebasisofsomethingstudiedfromtheforefathersinwaterpipelineandpresserandharmofthewatersupplypipeclogg

6、edbygasThebestwayofexhaustWasstudiedStructureprinciple，performancecharacteristicandtechniqueessentialsofcommonprotectivemeasuresforwaterhammerisintroduced，andpointsoutsomeitemsrequiringattentionwhenchooseprotectingmeasur

7、esforwaterhammerAccordingtocharacteristicmethodinthehydraulictransients，buildingupthewaterhammercalculationmathematicsmodelcombinedwithallkindsofboundaryconditions，wrotethevisualprogramofwaterhammercalculationwiththecomp

8、uterlanguage，madeuseofthecomputertocarryonsimulationcalculationFinallytakeDahuofangReservoirinLiaoningProvincewatertransportationprojectastheexample，simulationcalculationofwaterhammerprotectionisshowninlongdistanceandlar

9、ge—scaleregionalwatergravitationaltransportationpipelinesystemwhichhasmultiplebranchBasedontheresultofcalculation，thebestprotectivemeasureoflongdistanceandlarge—scaleregionalwatergravitationaltransportationpipelinesystem

10、isshownbycomparingwithvariousprotectivemeasuresofwaterhammerItisavaluablereferencetoprotectwaterhammerforsimilarengineeringKeywords：longdistanceandlargescaleregion；gravityflow；waterhammerprotection；exhaustvalves；boxtypet