Njira yogwiritsira ntchito zida zoziziritsira ndi zida zake zowongolera

Zipangizo zoziziritsira zikamathamanga, pamwamba pa chopopera cha nthunzi chimakhala chozizira kwambiri. Ngati chisanucho chili chokhuthala kwambiri, chidzakhudza kuzizira, kotero chiyenera kusungunuka pakapita nthawi. Kuti zipangizo zoziziritsira zozizira zikhale zozizira kwambiri komanso zida zoziziritsira zozizira zotentha kwambiri, chifukwa cha kutentha kosiyanasiyana, zigawo zowongolera zofanana nazonso zimasiyana. Njira zoziziritsira nthawi zambiri zimaphatikizapo kutseka kusungunuka, kusungunuka ndi kutentha komwe kumadzipangira wekha, ndi kusungunuka powonjezera zida zakunja.

Pazida zoziziritsira kutentha kwapakati, kutentha kwa coil yotulutsa mpweya nthawi zambiri kumakhala kotsika kuposa kutentha kwa malo ozizira, ndipo kumakhala kokwera kuposa kutentha kwa malo ozizira panthawi yozimitsidwa, kotero njira yozimitsira mpweya nthawi zambiri imagwiritsidwa ntchito pazida zoziziritsira kutentha kwapakati, monga makabati owonetsera ozizira. Panthawi yogwira ntchito, kutentha mu kabati kumakhala pafupifupi 1°C, ndipo kutentha kwa coil nthawi zambiri kumakhala kotsika pafupifupi 10°C kuposa komwe kuli mu kabati. Makina akatsekedwa, kutentha kwa mpweya mu kabati kumakhala kokwera kuposa kutentha kwa malo ozizira, fan pa evaporator imapitiliza kugwira ntchito, ndipo kusungunuka mwachindunji kumachitika ndi mpweya mu kabati ndi kutentha kwakukulu. Kusungunuka kumathanso kuchitika ndi nthawi yokhazikika kapena mwachisawawa. Kusungunuka kwa nthawi ndi kukakamiza compressor kuti isiye kugwira ntchito kwa kanthawi. Panthawiyi, mpweya mu kabati udzasungunuka coil. Nthawi yosungunuka ndi kutalika kwa nthawi yosungunuka zimayendetsedwa ndi timer malinga ndi dongosolo lokhazikitsidwa. Nthawi zambiri zimayikidwa kuti zizimitse compressor pamene firiji ili pa kutentha kochepa kwambiri. Choyezera kutentha chimatha kusungunula madzi nthawi zingapo mkati mwa maola 24.

Pazida zoziziritsira zomwe zimakhala ndi kutentha kochepa, kutentha kwa evaporator kumakhala kotsika kuposa kutentha kwa nthawi yozizira, ndipo njira yothira frosting iyenera kugwiritsidwa ntchito. Pamene kutentha kwa mpweya mufiriji kuli kotsika kwambiri kuposa kuzizira, kutentha kumafunika kuperekedwa ku evaporator kuti isungunuke. Kutentha komwe kumafunika kuti isungunuke nthawi zambiri kumachokera ku kutentha kwamkati mwa makina ndi kutentha kwakunja kunja kwa makina.

Njira yosungunula ndi kutentha kwamkati nthawi zambiri imatchedwa kusungunula mpweya wotentha. Imagwiritsa ntchito nthunzi yotentha yochokera ku compressor kulumikiza chitoliro chotulutsa utsi cha compressor ku malo olowera a evaporator, ndipo imapangitsa nthunzi yotentha kuyenda bwino mpaka chisanu chomwe chili pa evaporator chisungunuke kwathunthu. Njira iyi ndi njira yotsika mtengo komanso yosunga mphamvu chifukwa mphamvu yomwe imagwiritsidwa ntchito posungunula imachokera ku dongosolo lokha.

Ngati evaporator ndi mzere umodzi ndipo valavu yokulitsa ndi mzere wooneka ngati T, mpweya wotentha ukhoza kuyamwa mwachindunji mu evaporator kuti usungunuke. Ngati pali mapaipi angapo, nthunzi yotentha iyenera kuyikidwa pakati pa valavu yokulitsa ndi chogawa madzi chozizira, kuti nthunzi yotentha ilowe mu payipi iliyonse ya evaporator mofanana, kuti cholinga cha kusungunula bwino chikhale chosungunula.

Ntchito yosungunula nthawi zambiri imayamba ndi chowerengera nthawi. Pazida kapena mikhalidwe yosiyanasiyana, chowerengera nthawi chimayikidwa nthawi zosiyanasiyana kuti chipewe kuwonjezeka kwa kugwiritsa ntchito mphamvu kapena kutentha kosayenera kwa chakudya chifukwa cha nthawi yambiri yosungunula.

Kutha kwa kusungunuka kwa madzi kumatha kudziwika ndi nthawi kapena kutentha. Ngati kutentha kwatha, chipangizo chowunikira kutentha chiyenera kukhazikitsidwa kuti chidziwe ngati kutentha kwa evaporator kuli kokwera kuposa kutentha kwa malo ozizira. Ngati chipangizo chowunikira kutentha chazindikira kuti kutentha kuli kokwera kuposa kutentha kwa malo ozizira, nthunzi yotentha yolowa mu evaporator iyenera kudulidwa nthawi yomweyo kuti dongosolo ligwire ntchito bwino. . Pankhaniyi, nthawi yamakina nthawi zambiri imayikidwa nthawi yomweyo, ndipo ntchito yosungunula madzi imathetsedwa malinga ndi chizindikiro chamagetsi cha chinthu chowunikira kutentha. Njira yoyambira ya ntchito ya gawo lililonse ndi iyi: kutentha kosungunula madzi kukafika, kulumikizana kwa nthawi kumatsekedwa, valavu ya solenoid imatsegulidwa, fan imasiya kugwira ntchito, compressor imapitiliza kugwira ntchito, ndipo nthunzi yotentha imatumizidwa ku evaporator. Kutentha kwa coil kukakwera kufika pamtengo winawake, ma contact a thermostat amasinthidwa, terminal ya X pa timer imachotsedwa, ndipo kusungunuka kwa madzi kumathetsedwa. Kutentha kwa coil kukatsika kufika pamtengo winawake, ma contact a thermostat amasinthasintha ndipo fan imayambiranso.

Pa nthawi yogwiritsira ntchito nthunzi yotentha, chowerengera nthawi chiyenera kugwirizanitsa magwiridwe antchito a zigawo zotsatirazi nthawi imodzi:

1) Valavu ya solenoid ya nthunzi yotentha iyenera kutsegulidwa;

2) Fani ya evaporator imasiya kugwira ntchito, apo ayi mpweya wozizira sungasungunuke bwino;

3) Chokometsera chiyenera kugwira ntchito mosalekeza;

4) Ngati chosinthira chochotsera utsi sichingathe kuletsa kusungunuka, nthawi yake iyenera kukhazikitsidwa ndi nthawi yokwanira yochotsera utsi yomwe yaperekedwa;

5) Chotenthetsera cha drain chili ndi mphamvu.

Zipangizo zina zoziziritsira zimagwiritsa ntchito gwero lakunja la kutentha posungunula, mwachitsanzo, kukhazikitsa chipangizo chotenthetsera chamagetsi pafupi ndi coil. Njira yosungunula iyi imayendetsedwanso ndi chowerengera nthawi. Kuthekera kwa kusungunula kumachokera ku chipangizo chakunja, kotero sikotsika mtengo monga kusungunula mpweya wotentha. Komabe, ngati mtunda wa payipi ndi wautali, mphamvu ya kusungunula kutentha kwamagetsi imakhala yokwera kwambiri. Pamene payipi yotentha ya nthunzi ili yayitali, choziziritsira chimakhala ndi condensation, zomwe zimapangitsa kuti liwiro la kusungunula lichepe kwambiri, ndipo ngakhale choziziritsira chamadzimadzi chimalowa mu compressor, zomwe zimapangitsa kuti madzi abwerere m'mbuyo, zomwe zimapangitsa kuti compressor iwonongeke. Chowerengera nthawi ya kusungunula kutentha chimayenera kuwongolera momwe zinthu zotsatirazi zimagwirira ntchito:

1) Nthawi zambiri, fani ya evaporator imasiya kugwira ntchito;

2) Chokompressor chimasiya kugwira ntchito;

3) Chotenthetsera chamagetsi chili ndi mphamvu;

4) Chotenthetsera cha drain chili ndi mphamvu.

Sensa yotenthetsera yomwe imagwiritsidwa ntchito limodzi ndi timer nthawi zambiri imakhala chipangizo choponyera kawiri chokhala ndi waya zitatu zotsogola, cholumikizira chotentha komanso cholumikizira chozizira. Kutentha kwa coil kukakwera, cholumikizira chotentha chimapatsidwa mphamvu, ndipo kutentha kwa coil kukatsika, cholumikizira chozizira chimapatsidwa mphamvu.

Pofuna kupewa nthawi yothira madzi isakhale yayitali kwambiri kapena kuti compressor ichuluke kwambiri itatha kusungunuka, chosinthira madzi chothira madzi, chomwe chimatchedwanso kuti fan delay switch, chingayikidwe pa makinawo. Babu la kutentha la chosinthira madzi chothira madzi nthawi zambiri limayikidwa kumapeto kwa evaporator. Akasungunuka bwino, chosinthira kutentha cha chowongolera madzi chothira madzi chimatha kuzindikira kutentha kwa madzi, kutseka zolumikizira pa chowongolera, ndikupatsa mphamvu valavu yothira madzi yothira madzi. Bwezerani makinawo ku kuziziritsa. Panthawiyi, chosinthira madzi ndi fani siziyamba nthawi yomweyo, koma ziyamba kugwira ntchito pambuyo pochedwa kuti zichotse kutentha komwe kudakali pa coil ndikupewa kudzaza compressor chifukwa cha kupanikizika kwambiri kwa madzi pambuyo posungunuka. Nthawi yomweyo, pewani fan kupukutira mpweya wonyowa pa chakudya chomwe chili mu kabati.