A cikin raka'a masu sanyaya iska, dadefrost dumama shambura(ko defrost heaters) su ne ainihin abubuwan da ke tabbatar da ingantaccen aiki na tsarin firiji. Suna magance lalacewar aikin kai tsaye ta hanyar tarin sanyi akan mai fitar da iska. Ana iya taƙaita tsarin aikinsu da ƙimar aikace-aikacen su cikin tsari kamar haka:
Ⅰ. Babban Aiki: Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙwara
1. Cire Frost Toshe
*** Tushen Matsala: Lokacin da na'urar sanyaya iska / na'ura mai sanyaya iska ke aiki, yanayin zafin filaye na evaporator yana ƙasa da 0 ° C. Turin ruwa a cikin iska zai taso cikin sanyi kuma a hankali ya yi kauri (musamman a wuraren da ke da yanayin zafi sama da 70%).
*** Sakamako:
~ sanyin da ke rufe fins yana hana kwararar iska → Yawan iska yana raguwa da kashi 30% zuwa 50%.
~ Layer na sanyi yana samar da Layer mai hana zafi → Canjin canjin zafi yana raguwa da fiye da 60%.
~ An tilastawa compressor yin aiki na tsawon lokaci saboda raguwar dawo da iskar gas → yawan amfani da makamashi.
*** Maganin bututun dumama:
Bayan an yi amfani da wutar lantarki, farfajiyardefrost dumama tubeya tashi zuwa 70 - 120 ℃, kai tsaye yana narkewa da sanyin ƙanƙara tsakanin fins → maido da hanyar iska da haɓaka haɓakar canjin zafi.
2. Hana toshewar kankara a magudanar ruwa
*** Maɓalli mai mahimmanci: Idan bututun magudanar ruwa a ƙasan fan ɗin sanyaya ya daskare kuma ya toshe, ruwan da ke zubar da sanyi zai koma cikin ma'ajin ya daskare, yana haifar da haɗari.
*** Aikace-aikacen bututun dumama:
Kunna layin wutar lantarki na siliki na roba a kusa da bututun magudanar ruwa (tare da ƙarfin ƙarfin 40-50W/m), kiyaye zafin bututu sama da 5 ℃
Ⅱ. Dabarun Aiki da Haɗin gwiwar Tsarin
1. Defrosting Trigger Mechanism
*** Sarrafa lokaci: Fara defrosting bisa ga tsarin da aka saita (misali, defrost sau ɗaya kowane awa 6);
*** Sanin yanayin zafi: Firikwensin zafin jiki na mai fitar da iska yana gano kauri daga saman sanyi. Lokacin da aka kai bakin kofa, ana jawo defrosting.
*** Sarrafa bambancin matsa lamba: Kula da bambancin matsa lamba tsakanin bangarorin biyu na evaporator. Idan bambancin ya wuce iyaka, yana nuna cewa juriya na iska ya yi yawa kuma ana buƙatar defrosting.
2. Tsarin Defrosting
Ⅲ. Siffofin ƙira da Daidaituwa tare da Ma'ajiyar Sanyi
| Halaye | Abubuwan Bukatun Aikace-aikacen Ajiye Sanyi | Tsare-tsaren aiwatar da bututun dumama |
| Sauƙaƙan Ƙarancin Zazzabi | Har ila yau yana buƙatar manne wa fins a yanayin zafi ƙasa -30 ℃ | Silicone m Layer na waje yana kula da sassauci, babu haɗarin karyewa yayin shigarwar iska |
| Rufewa mai hana danshi | Yanayin zafi mai girma (dangi mai zafi a cikin ajiyar sanyi> 90%) | Rufin silicone mai Layer biyu + gyare-gyaren haɗin gwiwa, ƙimar hana ruwa sama da IP67 |
| Madaidaicin Kula da Zazzabi | Yana hana ɓata zafi ga kayan aluminium fin | Fuskar zafin jiki na ciki (madaidaicin narkewa 130 ℃) ko mai kula da zafin jiki na waje |
| Juriya na Lalata | Mai jure sanyin ruwa da yanayin sanyi | Fluorine mai rufi ko samfurin bakin karfe 316 (don ajiyar sanyi na sinadarai) |
Ⅳ. Fa'idodin Kai tsaye da Ƙimar Kai tsaye
1.Tsarin makamashi da Rage farashi
*** Defrosting akan lokaci yana mayar da ingancin firiji zuwa sama da 95%, yana rage lokacin aikin kwampreso → Gabaɗayan amfani da makamashi yana raguwa da 15% zuwa 25%.
*** Case: Lokacin da injin daskarewa -18 ℃ ya kasa cire sanyi cikin lokaci, yawan wutar lantarki na wata-wata ya karu da raka'a 8,000. Bayan shigar da bututun dumama, ya dawo daidai.
2. Tabbatar da amincin kayan
*** Ingantacciyar musayar zafi na evaporator → Canjin yanayin zafi a cikin wurin ajiya yana cikin ± 1℃ → Hana samfuran daskararre daga narkewa da lalacewa ko lalata tsarin tantanin halitta ta lu'ulu'u na kankara.
3. Ƙara tsawon rayuwar kayan aiki
*** Rage yawan dakatarwar farawa da aiki mai ɗaukar nauyi na kwampreso → Za a iya ƙara tsawon rayuwar mahimmin abubuwan da aka gyara da shekaru 3 zuwa 5;
*** Hana fashewar ƙanƙara a cikin bututun magudanar ruwa → Rage haɗarin ɗigon na'urori.
Ⅴ. Mabuɗin Zaɓi da Kulawa
1. Ƙaƙƙarfan ƙarfin ƙarfi
*** Mai sanyaya iska mai nauyi: 30 - 40W a kowace mita (tare da rata tsakanin fins> 5mm);
*** Na'urar sanyaya iska mai nauyi mai nauyi: 45 - 60W a kowace mita (ana buƙatar shigar da zafi mafi girma don fins mai yawa).
2. Ƙimar Shigarwa
*** Dole ne a rarraba bututun dumama dumama bututu a ko'ina a tsakanin fins, tare da tazarar da ba ta wuce 10 cm ba (don hana kowane yanki daga rashin narkewar sanyi).
*** Ya kamata a adana wayar ƙarshen sanyi ta aƙalla 20 cm, kuma yakamata a rufe wuraren haɗin gwiwa tare da gel ɗin silicone mai ƙarancin zafin jiki.
3. Rigakafin Laifi
*** Gwada juriya akai-akai (> 200MΩ) don hana zubewa.
*** Tsaftace kurar ƙura a kowace shekara don hana tarin ƙura, wanda zai rage tasirin zafi.
Na'urar dumama dumama refrigeration tana taka rawar "mai kula da tsarin" a cikin na'urar kwandishan sanyi na ajiyar sanyi:
A zahiri: Ya karya kulle kankara, ya dawo da tashar musayar zafi;
Tattalin arziki: Ta hanyar tanadin makamashi da rigakafin kuskure, yana rage yawan farashin aiki;
Fasaha: Haɗin kayan silicone da sarrafa zafin jiki mai hankali yana tabbatar da ingantaccen tsari na yanke ƙanƙara.
Idan ba tare da bututun dumama ba, kwandishan sanyi kamar injin daskararre ne a wurin - da alama yana gudana, amma a zahiri ba tare da inganci ba.
Lokacin aikawa: Jul-11-2025