A. Bayani
Saboda sanyi a saman mai evaporator a cikin ajiya mai sanyi, yana hana gudanarwa da yada ƙarfin sanyi na refrigeration evaporator (bututu), kuma a ƙarshe yana rinjayar tasirin refrigeration.Lokacin da kauri daga cikin dusar ƙanƙara (kankara) akan farfajiyar mai fitar da ruwa ya kai wani ɗan lokaci, ingancin firiji har ma ya ragu zuwa ƙasa da 30%, yana haifar da ɓarna mai yawa na makamashin lantarki da rage rayuwar sabis na tsarin firiji.Sabili da haka, wajibi ne don aiwatar da aikin defrost ajiya na sanyi a cikin sake zagayowar da ta dace.
B. Dalilin defrosting
1, inganta yanayin sanyi na tsarin;
2. Tabbatar da ingancin samfuran daskararre a cikin sito;
3, adana kuzari;
4, tsawaita rayuwar sabis na tsarin ajiyar sanyi.
C. hanyoyin defrosting
Hanyoyi na zubar da sanyi na ajiyar sanyi: zafi mai zafi na iskar gas (mai zafi mai zafi mai zafi, zafi ammonia defrosting), lalata ruwa, lalata wutar lantarki, na'urar injiniya (artificial) defrosting, da dai sauransu.
1, zafi mai zafi
Ya dace da babba, matsakaita da ƙarami na ajiyar bututun sanyi:
Gaseous condensate mai zafi mai zafi yana shiga kai tsaye a cikin injin daskarewa ba tare da tsangwama ba, kuma yanayin zafin na'urar yana tashi, wanda ke haifar da dusar ƙanƙara mai sanyi da haɗin gwiwa na fitar da sanyi ya narke ko kuma ya bushe.Defrosting gas mai zafi yana da tattalin arziki kuma abin dogaro, dacewa don kulawa da gudanarwa, kuma saka hannun jari da wahalar gini ba shi da yawa.
2, gusar da ruwan feshi
Ana amfani dashi ko'ina a cikin defrosting na babban da matsakaici chiller:
Lokaci-lokaci ana fesa magudanar ruwa da ruwan zafin ɗaki don narke dusar ƙanƙara.Ko da yake tasirin defrosting yana da kyau sosai, ya fi dacewa da masu sanyaya iska, kuma yana da wuya a yi aiki don kullun iska.Hakanan yana yiwuwa a fesa mai fitar da ruwa tare da bayani tare da zafin jiki mai daskarewa, kamar 5% zuwa 8% maida hankali brine, don hana samuwar sanyi.
3, wutan lantarki
Ana amfani da bututun zafi mafi yawa don matsakaita da ƙananan chillers:
Ana amfani da waya mai dumama wutar lantarki don lalata bututun layin aluminum na dumama wutar lantarki a cikin matsakaici da ƙaramin ajiya mai sanyi, wanda yake da sauƙi kuma mai sauƙin amfani don chiller;Duk da haka, game da yanayin ajiya mai sanyi na aluminum tube, wahalar ginawa na aluminum fin shigar da waya mai dumama wutar lantarki ba ƙananan ba ne, kuma rashin nasara yana da yawa a nan gaba, kulawa da kulawa yana da wuyar gaske, tattalin arziki yana da talauci, kuma yanayin aminci yana da ƙasa kaɗan.
4, injin wucin gadi defrosting
Aikace-aikacen daskare bututun sanyi mai sanyi:
Defrosting bututun ajiya na sanyi ya fi tattalin arziƙi, hanyar kawar da sanyi ta asali.Babban ajiya mai sanyi tare da defrosting na wucin gadi ba gaskiya bane, aikin kai yana da wahala, amfani da jiki yana da sauri, lokacin riƙewa a cikin ɗakin ajiya yana da tsayi da yawa kuma yana cutar da lafiya, defrosting ba shi da sauƙin zama cikakke, na iya haifar da evaporator. nakasawa, kuma yana iya ma karya injin da ke haifar da hatsarori.
D. tsarin daskarewa tsarin fluorine zaɓi
Bisa ga daban-daban evaporator na sanyi ajiya, zabi in mun gwada da dace defrosting hanya.Ƙananan ƙananan shagunan sanyi suna amfani da ƙofar da aka rufe don daskarewa ta hanyar amfani da zafin iska.Wasu masu zafin jiki na ɗakin karatu suna zaɓar tsayar da firij, buɗe fanka mai sanyaya daban, yi amfani da fanka don yaɗa iska don yin sanyi, kuma ba sa ba da damar bututun zafi na lantarki don cimma manufar ceton kuzari.
1, Hanyar defrosting na mai sanyaya:
(1) Akwai bututun wutar lantarki da za a iya zabar ɓarkewar ruwa, wuraren da ke da ruwa mafi dacewa za su iya zaɓar zaɓin ruwan sanyi mai sanyi, wuraren ƙarancin ruwa sun fi son zaɓin bututun mai daskarewa.
(2) Ana amfani da defrosting bututu na lantarki mafi yawa a cikin ƙananan na'urar sanyaya iska;Ruwa mai juye sanyi sanyi ana saita gabaɗaya cikin babban kwandishan, tsarin firiji.
2. Hanyar lalata layin karfe:
Akwai zafi mai zafi mai daskarewa da kuma zaɓin defrosting na wucin gadi.
3. Hanyar defrosting na aluminum tube:
Akwai ɓangarorin daɗaɗɗen ma'aunin zafi da sanyio da hasken zafi na wutar lantarki.
E. lokacin sanyi na ajiyar sanyi
Yanzu ana sarrafa yawancin ɓarkewar ajiyar sanyi bisa ga binciken zafin jiki na defrosting ko lokacin rage sanyi.Ya kamata a daidaita mitar daskarewa, lokaci, da zazzabin tsayawar sanyi gwargwadon yawa da ingancin kayan da aka tara.
A ƙarshen lokacin bushewa, sannan zuwa lokacin drip, fan yana farawa.Yi hankali don kada a saita lokacin bushewar sanyi da tsayi sosai kuma kuyi ƙoƙarin cimma madaidaicin defrosting.(Zagayowar defrosting gabaɗaya ya dogara ne akan lokacin samar da wutar lantarki ko lokacin farawa na kwampreso.)
F. Binciken abubuwan da ke haifar da matsanancin sanyi
Akwai dalilai da yawa waɗanda ke shafar samuwar sanyi, kamar: tsarin evaporator, yanayin yanayi (zazzabi, zafi) da yawan kwararar iska.Tasirin samuwar sanyi da aikin sanyaya iska sune kamar haka:
1, bambancin zafin jiki tsakanin iska mai shiga da fan ajiyar sanyi;
2, zafin iskar da ake shaka;
3, tazarar fin;
4, yawan shigar iska.
Lokacin da yawan zafin jiki ya fi 8 ℃, tsarin ajiyar sanyi na yau da kullun ba ya yin sanyi;Lokacin da yanayin zafi ya kasance -5 ℃ ~ 3 ℃ kuma dangi zafi na iska yana da girma, mai sanyaya iska yana da sauƙin sanyi;Lokacin da aka saukar da zafin yanayi, saurin samuwar sanyi yana raguwa saboda abun cikin iska yana raguwa.
Lokacin aikawa: Dec-12-2023