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1、船舶空调装置制冷不良实例分析与处理（Analysisandtreatmentoftherefrigerationofairconditioningunit）AnalysisandtreatmentoftherefrigerationofairconditioningunitRequirementsforairconditioningofships:airconditioningismainlyusedtomeetpeople'srequirementsforthecomfortandhygieneofworkandlivingenvi
2、ronment.Therequirementsforairconditionssuchastemperatureandhumidityarenotverystrict,allowingforchangesinthelargerrange,whicharecomfortabledevices.(1)temperature:thetemperatureconditioninwinterfor19~24℃,thesummeris21~28℃.China's19~22℃andthestandardforthewintersummerfor24
3、~28℃.(2)humidity:peoplearenotsensitivetothehumidityoftheair,andthesummerairconditioningadoptsthewetmethodtocontrol40%~50%.Inwinter,30%~40%isappropriate.(3)freshness:freshnessisthedegreetowhichairiscleanandfresh.Thequantitysuppliedis2.4m3/hifonlytheneedforoxygenismet.(4)
4、airflowspeed:theindoorairflowvelocityissuitablefor0.15~0.20m/s,andthemaximumisnomorethan0.35m/s.Therearetwosetsofindependentairconditioningunitsinonewheel,andthesmalleronesaresentcoldairtothecabinworkshop,andthelargeronesareairsupplyandhotair,suchaslivingareasandkitchen
5、s.Thispapermainlyanalysesthelatter.BothsystemsadoptR22asrefrigerant,whichiscomposedofsystemcomponents::(1)theoilseparatorisinstalledbetweenthedischargeendofthecompressorandcondenserend,holdstherefrigerantvaporinseparatemixedwithoil,inordertoavoidexcessivelubricatingoili
6、ntothecondenserandsystem,blockingthelineandtheinfluenceheattransfer.Theoilseparatorcanalsosendtheseparatedoilbacktothecompressorintimetoavoidcompressoroilloss,soastoensurethecompressor'slong-termsafeandreliableoperation.(2)condenser:itsfunctionistocoolthehigh-pressurean
7、dhightemperaturegasrefrigerantintoliquidforcirculation.(3)theaccumulator:canmakethedevicetostoreacertainamountofliquidrefrigerant,duetotheworkingconditionofrefrigerationunitchangesdifferentevaporationpressure,makebigchangesintheamountofrefrigerantcirculatinginthesystem,
8、canavoidtheliquidrefrigerantintherefrigerantcycletoreduceliquidlevelincreases,immersioncondensertubecooler,and
