吹水式液位计在工业生产中的应用

ApplicationofWaterBlowingTypeLevelMeterinIndustrialProduction(,467000),,,,AbstractInaccordancewiththeproblemsoccurwhenusingwaterblowingtypelevelmeter,andonthebasisofintroductionofitsstructureandopera2tionalprinciple,bycombiningwiththeexperienceinthefield,thereasonsofinaccuratemeasurementofquantityofblowingairareanalyzed.Relevantimprovingmeasuresandtherequirementofmaintenanceareproposed.Excellenteconomicaleffectsareobtainedinpracticalimplementation.KeywordsWaterblowingtypelevelmeterProblemAnalysisoncauseImprovingmeasure0,,,,,,11.1()(),11.2,(),,,,,,,,,2,,,,,32.1WPL(),,,,35%2.2,,,95,,28%2.3,22%,,3,2001,PW(),,,,,,,,,,44.1,,,,,,,,,,,4.2,:,,,5,,,,201..,1991(4)2,..,1992(1):2004-11-22,,1971,1995,,;(56)4:,,;,,1(GB50050-95).,19952(SHJ16-90).,19903..,1989:2005-04-04,,1966,1988,,;(58)PLC,PLC(5s5min),N(5),PLCN,,;,1,,,..,2000(11):2005-03-14,,1993,;062612200512PROCESSAUTOMATIONINSTRUMENTATIONVol.26No.12December2005