4、, solarenergy resourcesareveryrich. Researchandutilizationof solarenergy and theimportanceof thedevelopment, isfar-reachingmeaningforthe sustainabledevelopmentof resourcesandenvironmentinChina andglobalenvironmentprotection. Atpresentalotof heatcollector ofsolarenergy, b
5、ut widelyusedinChina or flatplateheatcollector. Atpresent, collector isbetter utilizedinsome developedcountries parabolictrough, andobtain twopiecesof goodresults, butinourcountry, thetechnologyhasseldombeenstudied.This is thepurposeof design, from solarenergy moreeffect
6、ivelyuse of incidentsunlight, focusonimproving theenergydensity, sothatthe focus of surfacetreatmentinthe heatcollecting smallsurface to reduceheatloss, so inthehot set highertemperature toobtain higherthermalefficiency, andcan makefulluseof solarenergy alldayand thusgre
7、atlyimprove theefficiencyofthewholesystemof allkindsof solarenergyutilization. This isthedesignofthe automatictracking parabolictrough collector.【Keywords】:solarenergysolarcollectorvacuumtube;trackingdevice2323目录一、绪论………………………………………………………………………………3二、集热器介绍……………………………………………