Frosting pachiteshi chemhepo chekudzoka chechando chekuchengetera compressor chinhu chinowanzoitika mufiriji system.Kazhinji, hazvizogadziri pakarepo dambudziko rehurongwa, uye kutonhora kuduku hakuwanzogadziriswa.Kana chiitiko chechando chakanyanyisa, saka chekutanga chinoda kubvisa chikonzero chechando
Kutanga, iyo compressor mhepo inodzokera port inotonhora
Frosting pakudzoka kwemhepo inlet inoratidza kuti kudzoka kwemhepo tembiricha ye compressor yakanyanya kuderera.Zvino chii chichaita kuti tembiricha yemhepo yekudzoka yecompressor iderere zvakanyanya?
Iyo yakafanana misa yefiriji, kana vhoriyamu uye kudzvanywa zvichichinja, tembiricha ichave nekuita kwakasiyana.Kana iyo compressor yekudzoka tembiricha yakadzikira, inowanzoratidza yakaderera kudzoka gasi kudzvanywa uye yakakwirira refrigerant vhoriyamu yevhoriyamu imwechete panguva imwe chete.Mudzi wemamiriro ezvinhu aya ndewekuti refrigerant inoyerera kuburikidza ne evaporator haigone kunyatso tora kupisa kunodiwa nekuwedzera kwayo kune yakafanotemerwa yekutsikisa tembiricha kukosha.
Pane zvikonzero zviviri zvedambudziko iri:
- The throttle liquid refrigerant supply yakajairika, asi evaporator haigoni kutora kupisa kazhinji;
- iyo evaporator heat absorption inoshanda zvakajairika, asi iyo throttle refrigerant inopa yakawandisa, ndiko kuti, kuyerera kwefiriji kwakawandisa, isu tinowanzonzwisisa kuti firiji yakawanda.
Chepiri, nekuda kwekuderera kwefluorine kunokonzerwa ne compressor kudzorera gasi kutonhora
1.nokuti kuyerera kwefiriji kuduku zvikuru
Kuwedzera kushoma kwefiriji hakuzoshandisi nzvimbo yese evaporator, uye inongogadzira tembiricha yakaderera muevaporator.Mune dzimwe nzvimbo, nekuda kwehushoma hwefiriji uye kukurumidza kuwedzera, tembiricha yenzvimbo yakaderera, uye evaporator frost phenomenon inooneka.
Mushure mekutonhora kwenzvimbo, nekuda kwekuumbwa kwechidzitiro chekudzivirira kupisa pamusoro peiyo evaporator uye yakaderera kupisa kupisa munzvimbo ino, iyo firiji yekuwedzera inoendeswa kune dzimwe nzvimbo, uye zvishoma nezvishoma iyo yose evaporator frosting kana icing phenomenon, iyo evaporator yese. yakagadzira kupisa kwekudzivirira, saka kuwedzera kuchapararira kune compressor kudzoka pombi inotungamira kune compressor kudzoka gasi frosting.
2.nekuda kwehuwandu hwefiriji
Low evaporation pressure in evaporator inotungamira kune yakaderera evaporation tembiricha, izvo zvishoma nezvishoma zvinotungamira kune condensation muevaporator kuti igadzire kupisa kwekudzivirira layer, uye kuendesa nzvimbo yekuwedzera kune compressor kudzoka gasi, zvichikonzera compressor kudzoka gasi frosting.
Low evaporation pressure in evaporator inotungamira kune yakaderera evaporation tembiricha, izvo zvishoma nezvishoma zvinotungamira kune condensation muevaporator kuti igadzire kupisa kwekudzivirira layer, uye kuendesa nzvimbo yekuwedzera kune compressor kudzoka gasi, zvichikonzera compressor kudzoka gasi frosting.
Aya mapoinzi maviri ari pamusoro acharatidza evaporator frosting isati compressor kudzoka mhepo frosting.
Muchokwadi, muzviitiko zvakawanda kune frost phenomenon, chero bedzi kugadziriswa kweiyo inopisa gasi bypass valve.Nzira chaiyo ndeyekuzarura chivharo chekumashure chevhavha inopisa gasi, uye ipapo shandisa No.8 hex wrench kushandura nut inogadzirisa mukati mewachi.Nzira yekugadzirisa haisi kukurumidza.Kazhinji, ichambomira mushure mehafu yekutendeuka, uye hurongwa huchamhanya kwechinguva kuti uone mamiriro echando asati afunga kuti aenderere mberi nekugadzirisa.Kana kushanda kwakadzikama uye chiitiko chechando che compressor chinopera, simbisa chivharo chekupedzisira.
Chetatu cylinder head frosting (serious crankcase frosting)
Cylinder head frosting inokonzerwa nehuwandu hwemvura yakanyorova kana refrigerant suction compressor.Zvikonzero zvikuru zveizvi ndezvi:
- Kuvhura kwevharuvhu yekuwedzera yekupisa kwakakura kwazvo, uye kuiswa kwepakeji yekunzwa tembiricha kwakashata kana kugadzikwa zvakasununguka, kuitira kuti tembiricha inonzwa yakakwira zvakanyanya uye spool inovhurwa zvisirizvo.
Ivhavha yekuwedzera yekupisa inoshandisa iyo superheat pane evaporator yekubuda sechiratidzo chemhinduro kuburitsa chiratidzo chekutsauka mushure mekuchienzanisa neyakapihwa superheat kukosha kugadzirisa kuyerera kwefiriji muevaporator.Iyo yakananga kuita proportional regulator, iyo inobatanidza iyo transmitter, regulator uye actuator.
Zvinoenderana neakasiyana chiyero modhi, mavharuvhu ekuwedzera anopisa anogona kukamurwa kuita:
Internal balanced thermal expansion valve;
External balanced thermal expansion valve.
Ivhavha yekuwedzera yekupisa inovhurwa zvakanyanya, iyo tembiricha inonzwa pasuru inoiswa zvisirizvo kana kugadziriswa zvakasununguka, kuitira kuti inonzwa tembiricha yakakwira zvakanyanya uye spool inovhurika zvisirizvo, zvichiita kuti huwandu hukuru hwemvura hunyoro huswe mucompressor, zvichikonzera chando pamusoro pehumburumbira.
Ivhavha yekuwedzera inopisa yakavhurwa zvakanyanya, tembiricha inonzwa pasuru inoiswa zvisizvo kana kugadzikwa zvakasununguka, kuitira kuti tembiricha inonzwa yakakwira zvakanyanya, spool inovhurwa zvisina kujairika, zvichikonzera kuti yakawanda yemvura yakanyorova inoyamwa mucompressor, uye iyo humburumbira musoro wakarohwa nechando.
- Kana iyo yemvura inopa solenoid valve inodonha kana kumira, vharafu yekuwedzera haina kuvharwa zvakasimba
Kuwanda kwemvura yemufiriji yaungana muevaporator isati yatanga.Aya mamiriro zvakare ari nyore kukonzera compressor liquid hit!
- Yakawandisa refrigerant muhurongwa
Iyo yemvura nhanho mucondenser yakakwira, iyo inodziya yekupisa nzvimbo inodzikiswa, kuitira kuti iyo condensing pressure iwedzere, ndiko kuti, kudzvanywa kusati kwawedzera vharafu yekuwedzera, iyo firiji dosi muevaporator inowedzera, iyo yemvura refrigerant haigone kunyungudutswa zvachose. mu evaporator, saka compressor inofema mhepo yakanyorova, cylinder vhudzi inotonhora kana kunyange chando, uye inogona kukonzera "mvura inoputika", uye evaporation pressure ichave yakakwirira.
Nguva yekutumira: Zvita-06-2022
