Matsalolin gama gari na ma'aunin ajiyar sanyi

A cikin tsarin firiji, yanayin zafi mai fitar da iska da matsi mai ƙafewa aiki ne na juna.
Yana da alaƙa da yanayi da yawa kamar ƙarfin kwampreso. Idan ɗaya daga cikin yanayin ya canza, zafin ƙanƙara da matsa lamba na tsarin sanyi zai canza daidai. A cikin BZL-3 × 4 ma'aunin sanyi mai motsi
, Wurin fitar da iska bai canza ba, amma ƙarfin firiji ya ninka sau biyu, wanda ya sa ƙarfin fitarwa na ma'aunin ajiyar sanyi mai motsi bai dace da ƙarfin tsotsa na kwampreso ba (ƙarfin evaporation Vo).
Mafi ƙanƙanta fiye da ƙarfin tsotsa na compressor (Vh), wato V0Idan yawan zafin jiki na gashi ya yi ƙasa da ƙasa, aikin index na compressor zai ragu, kuma alamar tattalin arziki za ta lalace.

1. Daidaitawar yanki na evaporation na evaporator na haɗin kayan ajiyar sanyi ba shi da ma'ana:

Daidaitawar yanki na evaporator a cikin hadadden ajiyar sanyi ya bambanta da bukatun fasaha na ainihin tsarin firiji. Dangane da abubuwan lura a kan-da-tabo a kan wasu haɗe-haɗen ajiyar sanyi, yankin evaporation na evaporator ne kawai.
Akwai kusan 75% waɗanda yakamata a daidaita su. Mun san cewa don daidaitawa na evaporator a cikin hadaddiyar ajiyar sanyi, ya kamata a aiwatar da lissafin nauyin zafi daban-daban bisa ga bukatun yanayin zafinsa, kuma a ƙayyade ƙarfin evaporator na evaporator.
Yankin gashi, sa'an nan kuma saita bisa ga bukatun tsarin firiji. Idan ba a daidaita mai fitar da ruwa yadda ya kamata ba bisa ga buƙatun ƙira kuma an rage yankin daidaitawar injin a makance, za a lalata injin ɗin da aka haɗa da ajiyar sanyi.
Matsakaicin yanayin sanyaya a kowane yanki yana raguwa sosai kuma nauyin sanyaya yana ƙaruwa, kuma ƙimar ƙarfin kuzari yana raguwa sosai, yana haifar da raguwar zafin jiki a cikin ma'ajin sanyi mai motsi, kuma ƙimar aiki na firiji yana ƙoƙarin hawa sama.
Sabili da haka, lokacin zayyana da zaɓin mai fitar da ma'aunin sanyi mai motsi, ya kamata a zaɓi yankin evaporator bisa ga mafi kyawun canjin yanayin zafi.

2. Tsarin na'ura na refrigeration na kayan aikin ajiya mai sanyi ba shi da ma'ana:

Ba a ƙididdige raka'o'in firiji da aka saita akan haɗaɗɗen ajiyar sanyi da wasu masana'antun ke samarwa bisa ga jimlar nauyin sanyaya da aka ƙididdige su bisa ga ƙirar ma'ajiyar da kauri na rufin rufin tsarin shinge mai aiki na sanyi.
Matsakaicin rabo mai ma'ana, amma hanyar da za a ƙara yawan adadin raka'a don saduwa da buƙatun saurin sanyaya a cikin ɗakin ajiya. Ɗauki BZL-3×4 prefabricated sanyi ma'ajiyar a matsayin misali, ajiyar yana da tsayin mita 4, faɗin mita 3, kuma
2.7 mita, da net girma na sito ne 28.723 cubic mita, sanye take da 2 sets na 2F6.3 jerin refrigeration raka'a da 2 sets na m serpentine haske tube evaporators, kowane naúrar da mai zaman kanta evaporator samar da wani
Cikakken tsarin firiji don aikin sanyaya. Dangane da kimantawa da kuma nazarin nauyin injin na ajiyar sanyi, ana iya sanin cewa nauyin injin na ajiyar sanyi mai aiki yana da kusan 140 (W / m3), kuma ainihin jimlar nauyin shine.
4021.22 (W) (3458.25kcal), bisa ga bayanan da ke sama, ajiyar ajiyar sanyi ta wayar hannu ta zaɓi na'ura mai sanyi ta 2F6.3 (madaidaicin yanayin sanyaya 4000kcal / h) kuma na iya saduwa da buƙatun ajiyar sanyi ta hannu.
Abubuwan da ake buƙata na sanyi (har zuwa -15°C ~ -18°C), don haka, yana da wuya a saita ƙarin na'ura mai sanyaya jiki a cikin ma'ajin, kuma hakan zai ƙara farashin kula da naúrar.