Kana michina yekutonhodza ichimhanya, pamusoro pe evaporative coil panogona kunge paine chando. Kana chando chakanyanya kukora, zvinokanganisa kutonhora, saka chinofanira kunyungudutswa nenguva. Kuti michina yekutonhodza ishande zvakanaka uye michina yekutonhodza iite tembiricha yakaderera, nekuda kwemhando dzakasiyana dzekupisa, zvinhu zvekudzora zvinoenderana nazvo zvakasiyanawo. Nzira dzekunyungudutsa dzinowanzo sanganisira kudzima kunyungudutsa, kunyungudutsa nekupisa kunozvigadzira, uye kunyungudutsa nekuwedzera michina yekunze.
Pamidziyo yekutonhodza ine tembiricha iri pakati nepakati, tembiricha yekushanda kwe evaporative coil inowanzo kuve yakaderera pane tembiricha ye freezing point, uye yakakwira kupfuura tembiricha ye freezing point panguva yekudzima, saka nzira yekudzima defrosting inowanzo shandiswa pamidziyo yekutonhodza ine tembiricha iri pakati nepakati, senge makabati ekuratidzira akachengetwa mufiriji. Munguva yekushanda, tembiricha iri mukabati inenge 1°C, uye tembiricha ye coil inowanzo kuve yakaderera ne10°C pane iri mukabati. Kana muchina wadzimwa, tembiricha yemhepo mukabati yakakwira kupfuura tembiricha ye freezing point, feni iri pa evaporator inoramba ichimhanya, uye defrosting yakananga inoonekwa nemhepo iri mukabati ine tembiricha iri pamusoro. Defrosting inogonawo kuitwa nenguva yakatarwa kana kuti isina kurongeka. Timed defrosting ndeyekumanikidza compressor kuti imire kushanda kwenguva yakati. Munguva ino, mhepo mukabati ichanyungudutsa coil. Nguva yekunyungudutsa nehurefu hwenguva yekunyungudutsa zvinodzorwa ne timer zvichienderana nehurongwa hwakatarwa. Kazhinji yakagadzirirwa kudzima compressor kana firiji iri pamoto wakaderera. Chinonyungudutsa nguva chinogona kunyungudutsa kakawanda mukati memaawa makumi maviri nemana.
Pamidziyo yekutonhodza ine tembiricha yakaderera, tembiricha yekushanda kwemuchina wekutonhodza yakaderera pane tembiricha yechando, uye nzira yekutonhodza yakarongwa nenguva inofanira kushandiswa. Kana tembiricha yemhepo iri mufiriji iri pasi pechando zvakanyanya, kupisa kunofanirwa kupihwa kumuchina wekutonhodza kuti utonhodze. Kupisa kunodiwa pakutonhodza kunowanzobva pakupisa kwemukati memuchina uye kupisa kwekunze kwemuchina.
Nzira yekunyungudutsa nekupisa kwemukati inowanzonzi kunyungudutsa kwemhepo inopisa. Inoshandisa utsi hunopisa hunobva mucompressor kubatanidza pombi yekubuda kwecompressor nekupinda kwe evaporator, uye inoita kuti utsi hunopisa hufambe zvizere kusvika chando chiri pa evaporator chanyunguduka chose. Nzira iyi inzira isingadhuri uye inochengetedza simba nekuti simba rinoshandiswa pakunyungudutsa rinobva musystem pachayo.
Kana evaporator iri mutsetse mumwe chete uye vharuvhu yekutambanudza iri mutsetse wakaita seT, gasi rinopisa rinogona kusvetwa zvakananga mu evaporator kuti rinyungudike. Kana paine mapaipi akawanda, utsi hunopisa hunofanira kuiswa pakati pevharuvhu yekutambanudza nechikamu chekuparadzanisa mafungu erefrigerant, kuitira kuti utsi hunopisa hupinde mupaipi yega yega ye evaporator zvakaenzana, kuitira kuti chinangwa chekunyungudika kwakaringana.
Kunyungudutsa kwechando kunowanzo tangwa ne timer. Pamichina yakasiyana kana mamiriro akasiyana, timer inoiswa panguva dzakasiyana kudzivirira kuwedzera kwekushandiswa kwesimba kana tembiricha isina kukodzera yechikafu nekuda kwenguva yakawandisa yekunyungudutsa.
Kupera kwechando kunogona kutsanangurwa nenguva kana tembiricha. Kana tembiricha ikamiswa, mudziyo unoona tembiricha unofanirwa kugadziriswa kuti uone kana tembiricha ye evaporator yakakwira kupfuura tembiricha yechando. Kana mudziyo unoona tembiricha ukaona kuti tembiricha yakakwira kupfuura tembiricha yechando, steam inopisa inopinda mu evaporator inofanira kugurwa nekukasika kuti system idzorere kushanda kwayo kwakajairika. . Muchiitiko ichi, mechanical timer inowanzoiswa panguva imwe chete, uye defrosting operation inomiswa zvichienderana nechiratidzo chemagetsi chechinhu chinoona tembiricha. Maitiro ekutanga echiito chechikamu chimwe nechimwe ndeekuti: kana tembiricha yekunyungudutsa yasvika, timer contact inovharwa, solenoid valve inovhurwa, fan inomira kushanda, compressor inoramba ichimhanya, uye hot steam inotumirwa ku evaporator. Kana coil tembiricha yakwira kusvika kune imwe kukosha, thermostat contacts inoshandurwa, X terminal iri pa timer inobviswa, uye defrosting inomiswa. Kana coil tembiricha inodonha kusvika kune imwe kukosha, thermostat contacts inochinja uye fan inotangazve.
Munguva yekunyungudutsa kwemhepo inopisa, timer inofanirwa kuronga mashandiro ezvikamu zvinotevera panguva imwe chete:
1) Vharuvhu yemhepo inopisa inofanira kuvhurwa;
2) Fan ye evaporator inomira kushanda, zvikasadaro mhepo inotonhora haigone kunyungudika zvinobudirira;
3) Compressor inofanira kushanda nguva dzose;
4) Kana switch yekudzima defrosting ikasakwanisa kumisa defrosting, timer inofanira kuiswa nenguva yepamusoro yekudzima defrosting inobvumirwa;
5) Chitofu chedhireni chinopa simba.
Mimwe michina yekutonhodza inoshandisa sosi yekunze yekupisa kuti inyungudike, semuenzaniso, kuisa mudziyo wemagetsi wekudziisa pedyo necoil. Nzira iyi yekunyungudutsa inodzorwawo ne timer. Kugona kunyungudutsa kunobva kune mudziyo wekunze, saka hazvina mari yakawanda sekunyungudutsa mhepo inopisa. Zvisinei, kana daro repaipi rakareba, kushanda kwe electric heating defrosting kwakakwira. Kana pombi yekupisa yemhepo yakareba, refrigerant inogona kunyungudika, zvichikonzera kukurumidza kunyungudutsa, uye kunyange refrigerant yemvura inopinda mu compressor, zvichikonzera kuyerera kwemvura, zvichikonzera kukuvara kwe compressor. The thermal defrost timer inofanira kudzora mashandiro ezvinhu zvinotevera:
1) Kazhinji, feni ye evaporator inomira kushanda;
2) Compressor inomira kushanda;
3) Chidziyo chemagetsi chinopa simba;
4) Chitofu chedhireni chinopa simba.
Sensor yekupisa inoshandiswa pamwe chete ne timer inowanzova mudziyo une danda rimwe chete rine waya nhatu dze lead, hot contact uye cold contact. Kana coil tembiricha yakwira, hot contact terminal inowedzerwa simba, uye kana coil tembiricha yadzikira, cold contact terminal inowedzerwa simba.
Kuti nguva yekunyungudutsa irege kurebesa kana kuti compressor iwedzere kuzara mushure mekunyungudutsa, switch yekunyungudutsa inonyungudutsa, inonziwo fan delay switch, inogona kuiswa pasystem. Babu rekupisa re defrost termination switch rinowanzoiswa kumusoro kwe evaporator. Kana ice layer iri pacoil yanyunguduka zvachose, sensor ye defrost termination controller inogona kuona kupisa kwekunyungudutsa, kuvhara ma contacts ari pacontroller, uye kusimbisa defrost termination solenoid valve. Dzorera system ku cooling. Panguva ino, evaporator nefeni hazvitangi nekukasika, asi zvinotanga kushanda mushure mekunonoka kubvisa kupisa kuchiripo pacoil uye kudzivirira kuzara kwe compressor nekuda kwekumanikidzwa kwakanyanya kwekunyungudutsa mushure mekunyungudutsa. Panguva imwe chete, dzivisa fan kufemera mweya wakanyorova pakudya mu cabinet.
Nguva yekutumira: Ndira-24-2022
