Xa izixhobo zokukhenkcisa zisebenza, umphezulu wekhoyili yokufuma uthambekele ekubeni yingqele. Ukuba ingqele ityebile kakhulu, iya kuchaphazela isiphumo sokuphola, ngoko ke kufuneka inyibilikiswe ngexesha. Ukuze kusebenze ukunyibilikisa izixhobo zokukhenkcisa ezinobushushu obuphantsi kunye nezixhobo zokukhenkcisa ezinobushushu obuphakathi, ngenxa yobubanzi obahlukeneyo bobushushu, izinto zolawulo ezihambelanayo nazo zahlukile. Iindlela zokunyibilikisa ngokubanzi ziquka ukunyibilikisa ukucima, ukunyibilikisa ngobushushu obuzivelisela ngokwakho, kunye nokunyibilikisa ngokongeza izixhobo zangaphandle.
Kwizixhobo zokukhenkceza ezishushu kakhulu, ubushushu bokusebenza kwekhoyili yokuphuma kwamanzi buhlala buphantsi kunobushushu be-freezing point, kwaye buphezulu kunobushushu be-freezing point ngexesha lokuvala, ngoko ke indlela yokukhenkceza isetyenziswa kakhulu kwizixhobo zokukhenkceza ezishushu kakhulu, ezifana neekhabhathi zokubonisa ezifrijiweyo. Ngexesha lokusebenza, ubushushu kwikhabhathi bumalunga ne-1°C, kwaye ubushushu bekhoyili buhlala buphantsi malunga ne-10°C kunobo bukwikhabhathi. Xa umatshini uvaliwe, ubushushu bomoya kwikhabhathi buphezulu kunobushushu be-freezing point, ifeni kwi-evaporator iyaqhubeka nokusebenza, kwaye ukukhenkceza ngokuthe ngqo kuqatshelwa ngumoya kwikhabhathi ngobushushu obuphezulu. Ukukhenkceza kungenziwa ngexesha okanye ngokungacwangciswanga. Ukukhenkceza okushushu ngexesha kukunyanzela i-compressor ukuba iyeke ukusebenza ixesha elithile. Ngeli xesha, umoya kwikhabhathi uya kukhenkceza ikhoyili. Ixesha lokukhenkceza kunye nobude bexesha lokukhenkceza kulawulwa yi-timer ngokwendlela ebekiweyo. Ngokuqhelekileyo imiselwe ukuvala i-compressor xa i-freezing ikwi-heat load ephantsi. Isibali-xesha sokunyibilikisa iqhwa singabeka amaxesha amaninzi okunyibilikisa kwisithuba seeyure ezingama-24.
Kwizixhobo zokukhenkceza ezisebenzisa ubushushu obuphantsi, ubushushu bokusebenza kwe-evaporator buphantsi kunobushushu be-freezing point, kwaye kufuneka kusetyenziswe indlela yokunyibilikisa ngexesha elifanelekileyo. Xa ubushushu bomoya kwi-freezing bungaphantsi kakhulu kunobushushu, ubushushu kufuneka bunikwe kwi-evaporator ukuze bunyibilikise. Ubushushu obufunekayo ukuze kunyibilikise buvela kubushushu bangaphakathi kwinkqubo kunye nobushushu bangaphandle obungaphandle kwenkqubo.
Indlela yokunyibilikisa ngobushushu bangaphakathi idla ngokuba yi-hot air defrosting. Isebenzisa umphunga oshushu ovela kwi-compressor ukudibanisa umbhobho wokukhupha umoya we-compressor kwindawo yokungena ye-evaporator, kwaye yenza umphunga oshushu uphume ngokupheleleyo de umaleko weqhwa kwi-evaporator unyibilike ngokupheleleyo. Le ndlela yindlela engabizi kakhulu neyonga amandla kuba amandla asetyenziselwa ukunyibilikisa avela kwinkqubo ngokwayo.
Ukuba i-evaporator yilayini enye kwaye i-expansion valve ingumgca omile okwe-T, igesi eshushu inokutsalwa ngqo kwi-evaporator ukuze inyibilike. Ukuba kukho imibhobho emininzi, umphunga oshushu kufuneka ufakwe phakathi kwe-expansion valve kunye ne-refrigerant flow divider, ukuze umphunga oshushu ungene kwi-evaporator nganye ngokulinganayo, ukuze kufezekiswe injongo yokunyibilikisa ngokulinganayo.
Umsebenzi wokunyibilikisa iqhwa udla ngokuqaliswa sisibali-xesha. Kwizixhobo okanye iimeko ezahlukeneyo, isibali-xesha simiselwa ngexesha elahlukileyo ukuthintela ukwanda kokusetyenziswa kwamandla okanye ubushushu obungafanelekanga bokutya ngenxa yexesha eligqithisileyo lokunyibilikisa iqhwa.
Ukuphela kokunyibilikisa kunokumiselwa ngexesha okanye kubushushu. Ukuba ubushushu buphelile, kufuneka kumiselwe isixhobo sokuva ubushushu ukuze kuqinisekiswe ukuba ubushushu be-evaporator buphezulu kunobushushu be-freezing point. Ukuba isixhobo sokuva ubushushu sifumanisa ukuba ubushushu buphezulu kunobushushu be-freezing point, umphunga oshushu ongena kwi-evaporator kufuneka unqunyulwe ngoko nangoko ukuze kubuyiselwe inkqubo ekusebenzeni okuqhelekileyo. . Kule meko, ixesha lomatshini lidla ngokufakwa ngaxeshanye, kwaye umsebenzi wokunyibilikisa uphelile ngokwesignali yombane yento yokuva ubushushu. Inkqubo esisiseko yesenzo secandelo ngalinye yile: xa kufikwa kubushushu obumiselweyo bokunyibilikisa, unxibelelwano lwe-timer luvaliwe, ivalvu ye-solenoid ivuliwe, ifeni iyayeka ukusebenza, icompressor iyaqhubeka nokusebenza, kwaye umphunga oshushu uthunyelwa kwi-evaporator. Xa ubushushu be-coil bunyuka ukuya kwixabiso elithile, oonxibelelwano be-thermostat bayatshintshwa, i-terminal ye-X kwi-timer iyacinywa, kwaye ukunyibilikisa kuyacinywa. Xa ubushushu be-coil buhla ukuya kwixabiso elithile, oonxibelelwano be-thermostat butshintsha kwaye ifeni iyaqala kwakhona.
Ngexesha lokusebenza kokunyibilikisa umphunga oshushu, isibali-xesha kufuneka silungelelanise ukusebenza kwezi zinto zilandelayo ngaxeshanye:
1) Ivalvu ye-solenoid yomphunga oshushu kufuneka ivulwe;
2) Ifeni ye-evaporator iyayeka ukusebenza, kungenjalo umoya obandayo awunakunyibilikiswa ngokufanelekileyo;
3) I-compressor kufuneka isebenze rhoqo;
4) Xa iswitshi yokuphelisa ukunyibilikisa iqhwa ingakwazi ukuphelisa ukunyibilikisa, isibali-xesha kufuneka simiselwe ngexesha eliphezulu lokunyibilikisa elivunyelweyo;
5) I-drain heater inikwe amandla.
Ezinye izixhobo zokukhenkceza zisebenzisa umthombo wobushushu wangaphandle ukunyibilikisa, umzekelo, ukufaka isixhobo sokufudumeza sombane kufutshane nekhoyili. Le ndlela yokunyibilikisa ikwalawulwa sisixhobo sokuchitha ixesha. Amandla okunyibilikisa afunyanwa kwisixhobo sangaphandle, ngoko ke akubi nkulu njengokunyibilikisa umoya oshushu. Nangona kunjalo, ukuba umgama wepayipi mde, ukusebenza kakuhle kokunyibilikisa ubushushu bombane kuphezulu. Xa umbhobho womphunga oshushu umde, ifriji ithambekele ekuweni yingxinano, nto leyo ebangela isantya sokunyibilikisa esicothayo kakhulu, kwaye nefriji engamanzi ingena kwicompressor, nto leyo ebangela ukubuyela kolwelo, nto leyo ebangela umonakalo kwicompressor. Isixhobo sokunyibilikisa ubushushu kufuneka silawule ukusebenza kwezi zinto zilandelayo:
1) Kwiimeko ezininzi, ifeni ye-evaporator iyayeka ukusebenza;
2) I-compressor iyayeka ukusebenza;
3) Isifudumezi sombane sinamandla;
4) Isifudumezi sedreyini sinamandla.
I-sensor yobushushu esetyenziswa kunye ne-timer ngokuqhelekileyo sisixhobo sokuphosa kabini esine-single-pole esineentambo ezintathu ze-lead, i-hot contact kunye ne-cold contact. Xa ubushushu be-coil bunyuka, i-hot contact terminal iyanikwa amandla, kwaye xa ubushushu be-coil buhla, i-cold contact terminal iyanikwa amandla.
Ukuze kuthintelwe ukuba ixesha lokunyibilika libe lide kakhulu okanye icompressor igcwale kakhulu emva kokunyibilika, iswitshi yokumisa umbane, ekwabizwa ngokuba yi-fan delay switch, ingafakwa kwinkqubo. Ibhalbhu yobushushu yeswitshi yokumisa umbane idla ngokumiselwa kwisiphelo esiphezulu se-evaporator. Nje ukuba umaleko womkhenkce kwi-coil unyibilike ngokupheleleyo, i-sensor yobushushu ye-defrost controller's discrete controller ingakwazi ukubona ubushushu bokunyibilika, ivale oonxibelelwano kumlawuli, kwaye inike amandla i-defrost termination solenoid valve. Buyisela inkqubo ekupholiseni. Ngeli xesha, i-evaporator kunye nefeni aziqali kwangoko, kodwa ziya kuqala ukusebenza emva kokulibaziseka ukuze kususwe ubushushu obusahleli kwi-coil kwaye kuthintelwe ukugqithisa i-compressor ngenxa yoxinzelelo olugqithisileyo lokufunxa emva kokunyibilika. Kwangaxeshanye, kuthintelwe ukuba ifeni ivuthele umoya omanzi ekutyeni kwikhabhathi.
Ixesha lokuthumela: Jan-24-2022
