Copeland dijital gungurawa kwampreso yi a china don chiller

Binciken kurakurai guda 10 na gama gari a cikin kula da tsarin firiji da gyara kurakurai

1. Yawan zafin jiki na tsarin firiji ya yi ƙasa sosai

Matsakaicin ƙazafi ya yi ƙasa da ƙasa, kodayake lamarin yana bayyana a gefen babban matsin lamba, amma dalilin shine galibi a gefen ƙananan matsa lamba.Dalilan su ne:

1. An toshe rami na fadada bawul, an rage yawan samar da ruwa ko ma dakatar da shi, kuma tsotsawa da matsa lamba sun ragu a wannan lokacin.

2. An toshe bawul ɗin faɗaɗa da ƙanƙara ko ƙazanta, kuma an toshe tacewa, wanda ba makawa zai rage tsotsa da matsa lamba;cajin firiji bai isa ba;

2. Refrigeration tsarin sami ruwa koma baya

1. Don ƙananan tsarin firiji ta amfani da bututun capillary, ƙara yawan ruwa zai haifar da koma baya.Lokacin da evaporator ya yi sanyi sosai ko fan ɗin ya gaza, canja wurin zafi ya zama mara kyau, kuma ruwan da ba a daɗe ba zai haifar da koma bayan ruwa.Sauye-sauyen zafin jiki akai-akai kuma zai haifar da bawul ɗin faɗaɗa ya kasa amsawa da haifar da koma bayan ruwa.

2. Don tsarin firiji ta amfani da bawul ɗin haɓakawa, dawo da ruwa yana da alaƙa da zaɓi da rashin amfani da bawul ɗin haɓaka ba.Wuce kima na bawul ɗin faɗaɗa, ƙananan saitin zafi sosai, shigar da ba daidai ba na fakitin zafin jiki ko lalacewa ga nannade zafin jiki, ko gazawar bawul ɗin faɗaɗa na iya haifar da koma baya ruwa.

Don tsarin firiji inda ruwa ya dawo yana da wahalar gujewa, shigar da sarrafa mai raba gas zai iya hana ko rage illar koma bayan ruwa.

3. Yanayin tsotsa na tsarin firiji yana da girma

1. Yawan zafin tsotsa ya yi yawa saboda wasu dalilai, kamar rashin rufe bututun iskar gas da ke dawowa ko kuma dogon bututun da zai iya haifar da zafin tsotson ya yi yawa.A karkashin yanayi na al'ada, shugaban damfara ya kamata ya zama rabin sanyi da rabin zafi.

2. The refrigerant cajin a cikin tsarin bai isa ba, ko bude na fadada bawul ne ma kananan, sakamakon rashin isasshen refrigerant wurare dabam dabam a cikin tsarin, m refrigerant shigar da evaporator, high superheat, da kuma high tsotsa zafin jiki.

3. An toshe allon tacewa na tashar bawul ɗin faɗaɗawa, samar da ruwa a cikin injin ɗin bai isa ba, adadin ruwan refrigerant yana raguwa, kuma wani ɓangare na evaporator yana shagaltar da tururi mai zafi, don haka zafin tsotsa ya tashi.

4. Ruwa

1, ya kamata a guje wa zafin tsotsa ya yi yawa ko ƙasa.Yawan zafin jiki na tsotsa, wato, zafi mai yawa, zai haifar da zazzabi mai fitar da kwampreso.Idan zafin tsotsa ya yi ƙasa da ƙasa, yana nufin cewa refrigerant ɗin bai cika ƙafewa ba a cikin mashin ɗin, wanda ba kawai yana rage tasirin canjin zafi na evaporator ba, kuma tsotson rigar tururi shima zai haifar da girgiza ruwa a cikin kwampreso.A karkashin yanayi na al'ada, zafin tsotsa ya kamata ya zama sama da 5-10 ° C fiye da zafin jiki na evaporating.

2. Domin tabbatar da aminci aiki na kwampreso da kuma hana abin da ya faru na ruwa guduma, tsotsa zafin jiki da ake bukata ya zama mafi girma fiye da evaporation zafin jiki, wato, ya kamata da wani mataki na superheat.

5. Fara tsarin firiji tare da ruwa

1. Al'amarin cewa man mai a cikin kwampreso yana kumfa da ƙarfi ana kiransa farawa da ruwa.Ana iya lura da kumfa yayin farawa tare da ruwa a fili akan gilashin gani mai.Babban dalili shi ne, yawan firjin da ke narkewa a cikin mai mai mai da kuma nutsewa a ƙarƙashin mai mai mai da sauri ya taso lokacin da matsa lamba ya ragu ba zato ba tsammani, kuma yana haifar da yanayin kumfa na man mai, wanda ke da sauƙi don haifar da guduma mai ruwa.

2. Shigar da crankcase hita (lantarki hita) a cikin kwampreso iya yadda ya kamata hana ƙaura na refrigerant.Kashe na ɗan gajeren lokaci don ci gaba da samun kuzarin ƙugiya.Bayan rufewa na dogon lokaci, dumama man mai na tsawon awanni ko goma kafin fara injin.Shigar da mai raba ruwan gas akan bututun iskar gas mai dawowa zai iya ƙara juriya na ƙaura da rage yawan ƙaura.

6. Mai dawo da mai a cikin tsarin firiji

1. Rashin man fetur zai haifar da rashin man shafawa mai tsanani.Tushen karancin mai ba nawa ne da kuma saurin kwampressor ba, amma rashin dawo da mai na tsarin.Sanya mai raba mai zai iya dawo da mai da sauri kuma ya tsawaita lokacin aikin kwampreso ba tare da dawo da mai ba.

2. Lokacin da kwampreso ya fi girma fiye da evaporator, lankwasawa mai dawo da man fetur a kan bututun dawowa ya zama dole.Tarkon dawo da mai ya kamata ya kasance mai ƙarfi kamar yadda zai yiwu don rage ajiyar mai.Ya kamata tazara tsakanin lankwasa dawo da mai ya dace.Lokacin da adadin man da aka dawo da shi ya yi yawa, sai a ƙara mai mai mai.

3. Sau da yawa farawa na kwampreso ba shi da amfani ga dawowar mai.Saboda ci gaba da aiki lokaci yana da ɗan gajeren lokaci, compressor yana tsayawa, kuma babu lokacin da za a samar da iska mai sauri mai sauri a cikin bututun dawowa, don haka man mai mai zai iya zama a cikin bututun kawai.Idan mai dawo ya kasa da man da ake gudu, compressor zai yi karancin mai.Matsakaicin lokacin aiki, da tsayin bututun, mafi rikitarwa tsarin, mafi mahimmancin matsalar dawowar mai.

7. Yawan zafin jiki na tsarin sanyi

Ƙarfafawar kwantar da hankali yana da tasiri mafi girma akan yadda ya dace.Ga kowane raguwar digiri 1, ana buƙatar ƙara ƙarfin da 4% don samun ƙarfin sanyaya iri ɗaya.Sabili da haka, lokacin da yanayi ya ba da izini, yana da fa'ida don ƙara yawan zafin jiki mai ƙafewa yadda ya kamata don haɓaka ingancin firiji na kwandishan.

Matsakaicin zafin na'urar kwandishan na gida gabaɗaya yana da ƙasa da digiri 5-10 fiye da zafin fitar da iska na kwandishan.A lokacin aiki na yau da kullun, yawan zafin jiki na evaporating shine digiri 5-12, kuma zazzabin fitarwar iska shine digiri 10-20.

Rage zafin zafin da ke makancewa zai iya kwantar da bambancin zafin jiki, amma ƙarfin sanyaya na kwampreso ya ragu, don haka saurin sanyaya ba lallai ba ne cikin sauri.Menene ƙari, ƙananan zafin jiki na evaporating, ƙananan ƙarancin sanyi, amma nauyin yana ƙaruwa, lokacin aiki yana tsawaita, kuma amfani da wutar lantarki zai karu.

Takwas, yawan zafin jiki na shaye-shaye na tsarin firiji ya yi yawa

Babban dalilai na yawan zafin jiki na shayewa sune kamar haka: babban dawo da zafin iska, babban ƙarfin dumama motar, babban matsi, matsa lamba mai ƙarfi, ma'aunin adiabatic na refrigerant, da zaɓi mara kyau na refrigerant.

Tara, tsarin sanyi fluoride

1. Lokacin da adadin fluorine ya yi ƙasa ko matsa lamba mai daidaitawa ya yi ƙasa (ko an katange shi), bonnet (bellows) na bawul ɗin fadadawa har ma da shigar ruwa za a yi sanyi;lokacin da adadin fluorine ya yi ƙanƙanta ko kuma a zahiri ba shi da fluorine, bayyanar bawul ɗin faɗaɗa Babu amsa, ƙaramar sautin iska kawai za a iya ji.

2. Dubi wanne ƙarshen ƙanƙara ke farawa, shin daga kan mai rarrabawa ne ko kuma daga compressor baya zuwa bututun iska.Idan shugaban mai rarrabawa ya gaza a cikin fluorine, kwampreso yana nufin akwai sinadarin fluorine da yawa.

10. Yanayin tsotsa na tsarin firiji yana da ƙasa

1. Buɗewar bawul ɗin haɓaka yana da girma da yawa.Saboda abin da ke gano yanayin zafin jiki ya daure sosai, wurin tuntuɓar da bututun iskar da ke dawowa ya yi ƙanƙanta, ko kuma ba a nannade bangaren zafin jiki da kayan rufewar zafi ba kuma yanayin naɗensa ba daidai ba ne, da dai sauransu, zafin da aka auna ta yanayin zafin jiki. kashi ba daidai ba ne, kuma yana kusa da yanayin zafi, wanda ke sa bawul ɗin faɗaɗa aiki.An ƙara digiri na buɗewa, yana haifar da samar da ruwa mai yawa.

2. Cajin firiji yana da yawa, wanda ya mamaye wani ɓangare na ƙarar na'urar kuma yana ƙara matsa lamba, kuma ruwan da ke shiga cikin evaporator yana ƙaruwa daidai.Ruwan da ke cikin evaporator ba zai iya yin tururi gaba ɗaya ba, ta yadda iskar da compressor ke tsotsa ta ƙunshi ɗigon ruwa.Ta wannan hanyar, yawan zafin jiki na bututun iskar gas na dawowa yana raguwa, amma yanayin zafi na evaporation ba ya canzawa saboda matsin lamba baya faduwa, kuma matakin superheat yana raguwa.Babu wani gagarumin ci gaba ko da an rufe bawul ɗin fadadawa.