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1、船舶空调装置制冷不良实例分析与处理AnalysisandtreatmentofpoorrefrigerationinmarineairconditioningunitRequirementsforshipairconditioning:marineairconditioningismainlyusedtomeettherequirementsofpeople'scomfortandhygieneforworkandlivingenvironment.Thetemperature,humidityandotherairconditionsarenot
2、verystrict,allowingchangesinalargerrange,belongingtocomfortequipment.(1)temperature:thetemperatureconditionis19~24inwinterand21~28insummer.Thestandardinourcountryis19~22degreesinwinterand24~28insummer.(2)humidity:peoplearenotsensitivetothehumidityoftheair;thesummeraircondition
3、ingadoptsthewetmethod,thecontrolisfrom40%to50%,andthewinterisbetween30%and40%.(3)freshness:freshnessisthedegreeofcleanlinessandfreshnessoftheair.Ifonlyfromtheneedforoxygen,thesupplywillbeat2.4m3/h.(4)airflowspeed:indoorairflowrateshouldbe0.15~0.20m/s,themaximumisnotmorethan0.3
4、5m/s.Awheelhastwoindependentairconditioningunits,thesmallerfortheengineroomtosendcoldair,thelargerforthelivingareaandkitchenandotherplacestosendair,hotair.Thisarticlemainlycarriesonthebriefanalysistothelatter.TwosetsofsystemsareusingR22asrefrigerant,thesystemcomponent:(1):oils
5、eparatorinstalledinthecompressordischargebetweentheendandthecondensingendistheoilseparatedmixedrefrigerantsteaminordertoavoidtoomuchoilintothecondenserandthesystem,andtheinfluenceofheatpipeblocking.Theoilseparatorcanalsosendtheseparatedoilbacktothecompressorintime,soastoavoidt
6、hecompressorfromlosingoil,soastoensurethelong-termsafeandreliableoperationofthecompressor.(2)condenser:itsfunctionistocoolthehigh-pressureandhightemperaturegaseousrefrigerantdischargedfromthecompressorintoliquid,whichcanberecycledbythesystem.(3)reservoir:liquidrefrigerantcanen
7、ablethedevicetostoreacertainamount,duetothechangeoftheconditionofrefrigerationequipmentcausedbydifferentevaporationpressure,sothatthenumberofcirculatingrefrigerantinthesystemchangegreatly,avoidliquidrefrigerantlevelrisecanbereducedwhentherefrigerantcycle,immersioncoolertubeand
8、condenser,keepthecoolingliquidenoughintherefrigerantcirculati
