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1、冷水机组故障检测（Faultdetectionofwaterchiller）FailureanalysisofchillerrefrigerationsystemNeedssuchascoldwatermachine,icemachine,freezedryingmachine,lowtemperaturerefrigerator,refrigeratorfreezerwasincreasing,andthecorrespondingfaultwillbemoreandmore,hereforeveryon
2、etodoacomprehensiveanalysisofthefault,Ihopeusefulforeveryone.Failureoccurredintherefrigerationsystem,ingeneralcannotdirectlyseethefaultlocationwheretheyoccur,itisimpossibletorefrigerationsystemcomponentstodecompositionandanatomy,checkonlyfromtheoutside,tof
3、indouttheabnormalphenomenoninoperation,comprehensiveanalysis.Intheinspection,usuallythroughthelook,listen,touchtounderstandthesystemrunningstate.Whentheoperatingpressureandtemperatureofthesystemexceedthenormalrange,exceptforindoorandoutdoorenvironmenttempe
4、raturedeterioration,therewillbeproblems,whichisanimportantbasisforjudgingtherootcauseofthefailure.Therelationshipbetween1.suctiontemperatureandexhausttemperatureInfact,theexhausttemperatureofthesystemiscloselyrelatedtothesuctiontemperature.Withtheincreaseo
5、fsuctiontemperature,theexhausttemperaturealsoincreases,whileviceversa.Gettingaclearunderstandingoftheirrelationshipisagoodwaytomasterandcontrolthemsothattherefrigerationsystemworksbetter.Influenceof2.suctionpressurechangerefrigerationsystemWhentherefrigera
6、tionsystemisrunning,thesuctionpressureiscloselyrelatedtotheevaporationtemperatureandtheflowofrefrigerant.Forthesystemwithexpansionvalve,thesuctionpressureisrelatedtotheopeningdegreeoftheexpansionvalve,refrigerantcharge,thecoldefficiencyofthecompressor,andt
7、heloadsize.Inthecapillarysystem,thesuctionpressureisrelatedtothecondensingpressure,therefrigeratingcapacity,therefrigeratingefficiencyofthecompressor,andtheloadmagnitude.Therefore,thepressuregaugeshouldbeinstalledonthesuctionpipewhencheckingtherefrigeratio
8、nsystem.Thedetectionofinspiratorypressureplaysanimportantroleinfaultanalysis.(1)thefactorsofsuctionpressuresuctionpressurelowbelowthenormalvalue,thefactorshaveinsufficientcoolingcapacityandcoolingload,asmalla
