Basa rezvikamu zvikuru zvefiriji yakaoma
1. Refrigeration compressor
Refrigeration compressors ndiwo moyo wefiriji system, uye mazhinji macompressor nhasi anoshandisa hermetic inodzosera compressors.Kusimudza refrigerant kubva pasi kusvika kune yakakwira uye kutenderedza firiji nguva dzose, sisitimu yacho inoramba ichiburitsa kupisa kwemukati kune imwe nzvimbo pamusoro petembiricha yehurongwa.
2. Condenser
Basa re condenser nderokutonhodza yakakwira-kudzvanywa, superheated refrigerant vapor inoburitswa nefiriji compressor mufiriji yemvura, uye kupisa kwayo kunotorwa nemvura inotonhorera.Izvi zvinobvumira kuti firiji ienderere mberi.
3. Evaporator
Iyo evaporator ndiyo huru yekutsinhanisa kupisa chikamu chefiriji yekuomesera, uye mhepo yakamanikidzwa inotonhodzwa nechisimba muevaporator, uye yakawanda yemvura mhute inotonhodzwa uye yakanyungudutswa mumvura ine mvura uye inoburitswa kunze kwemuchina, kuitira kuti mweya wakamanikidzwa uome. .Iyo yakaderera-pressure refrigerant fluid inova yakaderera-pressure refrigerant mhute panguva yekuchinja kwechikamu muevaporator, inotora kupisa kwakatenderedza panguva yekuchinja kwechikamu, nekudaro kutonhora mhepo yakamanikidzwa.
4. Thermostatic kuwedzera vharafu (capillary)
Iyo thermostatic yekuwedzera vharafu (capillary) ndiyo throttling nzira yefiriji system.Mune firiji yakaoma, kupihwa kweiyo evaporator refrigerant uye mutongi wayo unowanikwa kuburikidza neiyo throttling mechanism.Iyo throttling mechanism inobvumira firiji kuti ipinde muevaporator kubva kune yakakwira-tembiricha uye yakakwirira-inomanikidza mvura.
5. Heat exchanger
Huzhinji hwemafiriji anoomesa ane mutsinhanisi wekupisa, chinova chinopisa chinotsinhanisa kupisa pakati pemhepo nemhepo, kazhinji kacho tubular heat exchanger (inozivikanwawo segoko uye chubhu heat exchanger).Basa guru remudziyo wekupisa mufiriji yekuomesera ndero "kudzoreredza" simba rekutonhora rinotakurwa nemhepo yakamanikidzwa mushure mekutonhodzwa ne evaporator, uye shandisa chikamu ichi chekutonhodza simba kutonhodza mweya wakamanikidzwa patembiricha yepamusoro inotakura. hombe yemhute yemvura (kureva kuti, mhepo yakamanikidzwa yakamanikidzwa inoburitswa kubva kumhepo compressor, yakatonhodzwa neinotonhorera yekumashure yemhepo compressor, uye yozoparadzaniswa nemhepo nemvura kazhinji iri pamusoro pe40 ° C), nekudaro kuderedza kupisa kwemhepo. iyo firiji uye yekuomesa system uye kuzadzisa chinangwa chekuchengetedza simba.Kune rimwe divi, tembiricha yemhepo yakadzika-yekudzvanywa mumhepo inopisa inodzoreredzwa, kuitira kuti madziro ekunze epombi inotakura mweya wakatsikirirwa usakonzerese chiitiko che "condensation" nekuda kwekushisa kuri pasi petembiricha yakapoteredza.Mukuwedzera, mushure mekushisa kwemhepo yakamanikidzwa ichikwira, hunyoro hwemhepo yakamanikidzwa mushure mekuoma kunoderedzwa (kazhinji pasi pe20%), iyo inobatsira kudzivirira ngura yesimbi.Vamwe vashandisi (semuenzaniso nezvinomera zvekuparadzanisa mhepo) vanoda mhepo yakamanikidzwa ine hunyoro hwakaderera uye tembiricha yakaderera, saka muomesi wefiriji hauchashongedzerwa neanopisa kupisa.Sezvo kupisa kwekupisa kusina kuiswa, mhepo inotonhora haigoni kushandiswa zvakare, uye kupisa kwemoto evaporator kuchawedzera zvakanyanya.Muchiitiko ichi, kwete chete simba refiriji refiriji rinoda kuwedzerwa kubhadhara simba, asiwo zvimwe zvikamu zvefiriji system yose (evaporator, condenser uye throttling components) inoda kuwedzerwa maererano.Kubva pamaonero ekugadzirisa simba, isu tinogara tichitarisira kuti iyo yakakwirira yekupisa tembiricha yefiriji yekuomesera, zviri nani (yakanyanya kupisa tembiricha, inoratidza kuwedzera simba kupora), uye zvakanakisa kuti hapana mutsauko wekushisa pakati pekupinda nekubuda.Asi kutaura zvazviri, hazvigoneke kuita izvi, kana tembiricha yekupinza mhepo iri pasi pe45 ° C, hazvishamisi kuti tembiricha yekupinza uye yekubuda yefiriji yekuomesera isiyane neinopfuura 15 ° C.
Compressed Air Processing
Mhepo yakadzvanywa → mafirita emagetsi→ zvinochinjisa kupisa (kuburitsa kupisa), → zvinopfungaira → zvinoparadzanisa gasi-mvura → zvinochinjisa kupisa (kupinza kupisa), → mafirita emagetsi → matangi ekuchengetera gasi
Maintenance and inspection: chengetedza tembiricha yedova refiriji dryer pamusoro pe zero.
Kuti uderedze tembiricha yemhepo yakamanikidzwa, tembiricha yekubuda kwefiriji inofanirawo kunge yakaderera.Kana iyo firiji yekuomesa inotonhodza mweya wakatsikirirwa, pane denderedzwa remufirimu-senge condensate pamusoro pefin ye evaporator liner, kana tembiricha yepamusoro yefin iri pazasi zero nekuda kwekudzikira kwekupisa kwemhepo, pamusoro. condensate inogona kuoma, panguva ino:
A. Nekuda kwekubatanidzwa kweaizi ine diki diki yekupisa yekupisa pamusoro pemukati mebladder fin ye evaporator, kupisa kwekupisa kunoderera zvakanyanya, mweya wakadzvanywa haugone kutonhodzwa zvakazara, uye nekuda kwe kusakwana kwekupisa kwekupisa, kupisa kwefiriji evaporation kunogona kuwedzera kuderedzwa, uye mugumisiro wekutenderera kwakadaro uchaunza zvisingadzivisiki migumisiro yakaipa kune firiji system (yakadai se "liquid compression");
B. Pamusana pekuparadzanisa kuduku pakati pezvimbi mu evaporator, kana zvimbi zvaoma, nzvimbo yekutenderera yemhepo yakamanikidzwa ichaderedzwa, uye kunyange nzira yemhepo ichavharwa mumatambudziko akaoma, kureva, "ice blockage";Muchidimbu, tembiricha yekumanikidza yedova refiriji yekuomesera inofanira kunge iri pamusoro pe0 ° C, kuitira kudzivirira tembiricha yedova kuti isanyanya kuderera, refiriji yekuomesa inopihwa simba rekudzivirira (inowanikwa nebypass valve kana fluorine solenoid valve. )Kana tembiricha yedova yadzikira kupfuura 0 ° C, iyo bypass valve (kana fluorine solenoid vharafu) inovhurika otomatiki (kuvhura kunowedzera), uye iyo isina kunyungudutswa yakakwirira-tembiricha uye yakanyanya-kudzvanywa refrigerant steam inopinzwa zvakananga muinlet ye evaporator. (kana gasi-mvura yekuparadzanisa tangi pane compressor inlet), kuitira kuti tembiricha yedova ikwire kusvika pamusoro pe0 ° C.
C. Kubva pakuona kwekushandiswa kwesimba remagetsi, kupisa kwemhepo kunopisa kwakaderera, zvichiita kuti kuderera kukuru kwecompressor refrigeration coefficient uye kuwedzera kwekushandiswa kwesimba.
Examine
1. Musiyano wekumanikidza pakati pekupinda nekubuda kwemhepo yakamanikidzwa haipfuure 0.035Mpa;
2. Evaporation pressure gauge 0.4Mpa-0.5Mpa;
3. High pressure gauge 1.2Mpa-1.6Mpa
4. Nguva zhinji cherechedza madhiraini uye magadzirirwo etsvina
Operation Nyaya
1 Tarisa usati watanga
1.1 Mavharuvhu ese epombi network system ari mune yakajairika standby state;
1.2 Ivhavha yemvura inotonhorera inosvinudzwa, kudzvinyirira kwemvura kunofanira kuva pakati pe0.15-0.4Mpa, uye kutonhora kwemvura kuri pasi pe31Ċ;
1.3 Refrigerant high pressure meter uye refrigerant low pressure mita padashboard zvine zviratidzo uye zvakaenzana zvakaenzana;
1.4 Tarisa magetsi ekupa magetsi, ayo asingapfuuri 10% yehuwandu hwehuwandu.
2 Boot maitiro
2.1 Dzvanya bhatani rekutanga, iyo AC contactor inononoka kwemaminetsi matatu uye yobva yatanga, uye refrigerant compressor inotanga kumhanya;
2.2 Tarisa dashboard, refrigerant high-pressure mita inofanira kusimuka zvishoma nezvishoma kusvika 1.4Mpa, uye refrigerant low-pressure mita inofanira kudonha zvishoma nezvishoma kusvika 0.4Mpa;panguva ino, muchina wapinda zvakajairika kushanda mamiriro.
2.3 Mushure mokunge muomesi uchimhanya kwemaminetsi matatu-5, tanga zvishoma nezvishoma kuzarura vheji yemhepo inopinza, uye wozozarura vheji yemhepo yekubuda maererano nehuwandu hwekutakura kusvikira mutoro wakazara.
2.4 Tarisa uone kana majeji ekupinza uye ekubuda nawo emhepo akajairwa (musiyano uripo pakati pekuverengwa kwemamita maviri e0.03Mpa unofanirwa kuve wakajairika).
2.5 Tarisa uone kana kudhiraivha kweiyo otomatiki drain kwakajairika;
2.6 Tarisa mamiriro ekushanda eiyo dryer nguva dzose, rekodha mhepo inopinza uye yekubuda kumanikidza, yakakwira uye yakaderera kudzvanywa kwemarasha anotonhora, nezvimwe.
3 Shutdown maitiro;
3.1 Vhara vharafu yemhepo yekubuda;
3.2 Vhara vharuvhu yemhepo inopinza;
3.3 Dzvanya bhatani rekumisa.
4 Kungwarira
4.1 Dzivisa kumhanya kwenguva yakareba pasina mutoro.
4.2 Usatanga firiji compressor nguva dzose, uye nhamba yekutanga uye kumira paawa haifaniri kudarika katanhatu.
4.3 Kuti uone kunaka kwekupihwa kwegasi, ita shuwa kuti unoteera hurongwa hwekutanga nekumisa.
4.3.1 Kutanga: Rega muomesi umhanye kwemaminitsi 3-5 usati wavhura air compressor kana inlet valve.
4.3.2 Shutdown: Dzima air compressor kana outlet valve kutanga wozodzima dryer.
4.4 Kune mavharuvhu ekubypass ari mupombi network anosvika pakupinza nekubuda kwemuomesi, uye vharafu yekunzvenga inofanira kuvharwa zvakasimba panguva yekushanda kudzivirira mhepo isina kubatwa inopinda pasi pemhepo pombi network.
4.5 The air pressure haifaniri kudarika 0.95Mpa.
4.6 Kupisa kwemhepo kunopinza hakupfuuri 45 degrees.
4.7 Kupisa kwemvura inotonhorera hakupfuuri 31 degrees.
4.8 Ndokumbira usabatike kana tembiricha yakadzika yadzikira pane 2Ċ.
4.9 Iyo nguva relay kuseta mumagetsi ekudzora kabati haifanire kunge iri pasi pemaminetsi matatu.
4.10 General Operation chero iwe uchidzora mabhatani ekuti "kutanga" uye "mira".
4.11 Mhepo-yakatonhodzwa firiji yekuomesera yekutonhodza fan inodzorwa nekudzvanywa switch, uye zvakajairika kuti fan isatendeuke kana firiji yekuomesa ichishanda pane yakaderera ambient tembiricha.Sezvo iyo firiji yakanyanya kudzvanywa inowedzera, fan inotanga otomatiki.
Nguva yekutumira: Aug-26-2023