Babu makawa tsarin firiji da ke aiki tare da cikakken yanayin tsotsa ƙasa da daskarewa daga ƙarshe za su fuskanci tarin sanyi a kan bututun mai da iska. sanyi yana aiki azaman insulator tsakanin zafin rana da za'a canjawa wuri daga sararin samaniya da na'urar sanyaya, yana haifar da raguwar haɓakar evaporator. Sabili da haka, masana'antun kayan aiki dole ne su yi amfani da wasu fasahohi don cire wannan sanyi lokaci-lokaci daga saman nada.Hanyoyin daskarewa na iya haɗawa da, amma ba'a iyakance ga sake zagayowar ko iska ba, lantarki da gas (wanda za'a yi magana a cikin Sashe na II a cikin fitowar Maris). Har ila yau, gyare-gyaren da aka yi wa waɗannan tsare-tsare na yau da kullun na daskarewa suna ƙara wani nau'i na rikitarwa ga ma'aikatan hidimar fage. Lokacin da aka saita da kyau, duk hanyoyin zasu cimma sakamakon da ake so na narkewar tarin sanyi. Idan ba'a saita sake zagayowar defrost daidai ba, sakamakon rashin cikawar defrosts (da raguwar haɓakar evaporator) na iya haifar da zafin jiki sama da yadda ake so a cikin firiji mai sanyi, ambaliya mai sanyi ko al'amurra na guntun mai.
Misali, yanayin nunin nama na yau da kullun da ke riƙe da samfurin zafin jiki na 34F na iya samun yanayin zafi na fitar da kusan 29F da cikakken zafin iska na 22F. Ko da yake wannan aikace-aikacen zafin jiki ne na matsakaici inda zafin samfurin ya kasance sama da 32F, bututun evaporator da fins za su kasance a zafin jiki da ke ƙasa da 32F, don haka haifar da tarin sanyi. Kashe sake zagayowar ya zama ruwan dare akan aikace-aikacen zafin jiki na matsakaici, duk da haka ba sabon abu ba ne ganin defrost gas ko narkewar lantarki a waɗannan aikace-aikacen.
refrigerate defrost
Hoto 1 Gina sanyi
KASHE KASHE ZANGON
Defrost kashe sake zagayowar shine kamar yadda yake sauti; defrosting yana samuwa ta hanyar kawai rufe sake zagayowar refrigeration, hana refrigerate shiga cikin evaporator. Ko da yake mai fitar da iska zai iya yin aiki a ƙasa da 32F, zafin iska a cikin firiji yana sama da 32F. Tare da firijin da aka kashe keken keke, barin iskar da ke cikin firiji don ci gaba da yawo ta cikin bututu / fins zai ɗaga yanayin zafi na evaporator, yana narkewar sanyi. Bugu da ƙari, ƙaddamar da iska ta al'ada a cikin sararin da aka sanyaya zai haifar da zafin iska ya tashi, yana kara taimakawa tare da sake zagayowar. A aikace-aikace inda zafin iska a cikin firiji yakan kasance sama da 32F, kashewar sake zagayowar yana tabbatar da zama ingantacciyar hanya don narkar da sanyin sanyi kuma shine mafi yawan hanyar defrost a aikace-aikacen zafin jiki na matsakaici.
Lokacin da kashe sake zagayowar da aka qaddamar, da refrigerant kwarara da aka hana shigar da evaporator nada ta amfani da daya daga cikin wadannan hanyoyin: yi amfani da defrost lokaci agogon sake zagayowar da kwampreso kashe ( guda kwampreso naúrar), ko sake zagayowar kashe tsarin ruwa line solenoid bawul fara wani famfo-saukar sake zagayowar ( guda compressor naúrar ko Multiplex kwampreso kashe bawul da ruwa), ko don haka a sake zagayowar kashe da kwampreso kashe. Multix tara.
refrigerate defrost
Hoto 2 Tsare-tsare na yau da kullun/sake saukar da wayoyi
Hoto 2 Tsare-tsare na yau da kullun/sake saukar da wayoyi
Lura cewa a cikin aikace-aikacen kwampreso guda ɗaya inda agogon lokacin bushewa ya fara sake zagayowar famfo, layin ruwa na solenoid bawul ɗin yana ƙarewa nan da nan. Compressor zai ci gaba da aiki, yana fitar da refrigerant daga tsarin ƙananan gefen kuma cikin mai karɓar ruwa. Compressor zai sake zagayowar lokacin da matsatsin tsotsa ya faɗi zuwa wurin da aka yanke don ƙarancin sarrafa matsi.
A cikin ma'ajin kwampreso na multiplex, agogon lokaci zai yawanci kashe wuta zuwa bawul ɗin solenoid na ruwa da mai sarrafa tsotsa. Wannan yana riƙe da ƙarar firiji a cikin mai fitar da iska. Yayin da yawan zafin jiki ya ƙaru, ƙarar refrigerant a cikin evaporator shima yana samun ƙaruwar zafin jiki, yana aiki a matsayin matattarar zafi don taimakawa tare da haɓaka yanayin zafin na'urar.
Babu wani tushen zafi ko makamashi da ke da mahimmanci don kashewar sake zagayowar. Tsarin zai koma yanayin firiji ne kawai bayan an kai lokaci ko iyakar zafin jiki. Wannan kofa don aikace-aikacen zafin jiki na matsakaici zai kasance a kusa da 48F ko mintuna 60 na lokacin hutu. Ana maimaita wannan tsari har sau huɗu a kowace rana dangane da shawarwarin masana'anta (ko W/I evaporator).
Talla
WUTAR LANTARKI
Kodayake ya fi kowa a aikace-aikacen ƙananan zafin jiki, ana iya amfani da defrost na lantarki akan aikace-aikacen zafin jiki na matsakaici. A kan aikace-aikacen ƙananan zafin jiki, cirewar sake zagayowar ba ta da amfani idan aka yi la'akari da cewa iskar da ke cikin firiji tana ƙasa da 32F. Sabili da haka, ban da rufe sake zagayowar firiji, ana buƙatar tushen zafi na waje don tada zazzabi mai zafi. Defrost na lantarki shine hanya ɗaya na ƙara tushen zafi na waje don narke tarin sanyi.
Ana saka sandunan dumama juriya ɗaya ko fiye tare da tsawon mashin ɗin. Lokacin da agogon lokacin bushewa ya fara zagayowar defrost na lantarki, abubuwa da yawa zasu faru a lokaci guda:
(1) Maɓalli da aka saba rufewa a cikin agogon lokacin defrost wanda ke ba da wutar lantarki zuwa injin fan fan zai buɗe. Wannan da'irar na iya ko dai kai tsaye ta yi ƙarfin injin fan fan na evaporator, ko kuma riƙon riƙon na masu tuntuɓar injin fan ɗin. Wannan zai sake zagayowar injin fan fanfo, wanda zai ba da damar zafin da ake samu daga na'urorin dumama ya ta'allaka a kan ma'aunin mai kawai, maimakon a canja shi zuwa iskar da magoya baya za su zagaya.
(2) Wani maɓalli na yau da kullun a cikin agogon lokacin bushewa wanda ke ba da wutar lantarki ga layin ruwa na solenoid (da mai sarrafa layin tsotsa, idan ana amfani da mutum) zai buɗe. Wannan zai rufe bawul ɗin layin ruwa na solenoid bawul (da mai sarrafa tsotsa idan an yi amfani da shi), yana hana kwararar refrigerant zuwa mai fitar da iska.
(3) Maɓalli na yau da kullun na buɗewa a cikin agogon lokacin defrost zai rufe. Wannan ko dai zai ba da wuta kai tsaye ga masu dumama dumama (ƙananan aikace-aikacen dumama amperage defrost), ko kuma samar da wuta ga riƙon naɗaɗɗen kwantiragin narkar da na'urar. Wasu agogon lokaci sun gina a cikin masu hulɗa tare da ƙimar amperage mafi girma waɗanda ke iya ba da wutar lantarki kai tsaye zuwa masu ba da wutar lantarki, kawar da buƙatar mai keɓantaccen mai ba da wutar lantarki.
refrigerate defrost
Hoto 3 Hita wutar lantarki, ƙarewar sanyi da tsarin jinkirin fan
Defrost na lantarki yana ba da mafi inganci defrost fiye da kashe sake zagayowar, tare da gajerun lokuta. Har yanzu, sake zagayowar defrost zai ƙare akan lokaci ko zazzabi. Lokacin da aka gama bushewa, ana iya samun lokacin drip down; wani ɗan gajeren lokaci wanda zai ba da damar sanyin da ya narke ya ɗigo daga saman magudanar ruwa zuwa cikin magudanar ruwa. Bugu da kari, za a jinkirtar da injin fan fan na evaporator daga sake kunnawa na ɗan gajeren lokaci bayan an fara zagayowar firiji. Wannan shi ne don tabbatar da cewa duk wani danshi da ke kan farfajiyar da ba za a busa shi cikin firiji ba. Madadin haka, zai daskare kuma ya kasance akan farfajiyar evaporator. Jinkirin fan kuma yana rage yawan iskar dumin da ake yaɗawa cikin firijin da aka sanyaya bayan ya ƙare. Ana iya samun jinkirin fan ta hanyar sarrafa zafin jiki (thermostat ko klixon), ko jinkirin lokaci.
Defrost na lantarki hanya ce mai sauƙi don juyar da kumfa a aikace-aikace inda kashe sake zagayowar ba ta da amfani. Ana amfani da wutar lantarki, ana haifar da zafi kuma sanyi yana narkewa daga mai fitar da ruwa. Duk da haka, idan aka kwatanta da kashe sake zagayowar sake zagayowar, lantarki defrost yana da ƴan mummunan al'amurran da shi: a matsayin wani lokaci kudi, da ƙarin farashin farko na hita sanduna, ƙarin contactors, relays da jinkirta sauya, tare da karin aiki da kayan da ake bukata domin filin wayoyi dole ne a yi la'akari. Har ila yau, ya kamata a ambaci ci gaba da kashe kuɗin ƙarin wutar lantarki. Bukatar tushen makamashi na waje don yin amfani da dumama dumama yana haifar da hukuncin tara makamashi idan aka kwatanta da kashe sake zagayowar.
Don haka, shi ke nan don kashe sake zagayowar, daskarewa iska da hanyoyin juyewar wutar lantarki. A cikin fitowar Maris za mu sake nazarin defrost gas daki-daki.
Lokacin aikawa: Fabrairu-18-2025