Binciken Matsalolin Kwamfresan Dakin Sanyi: Matsalolin Da Aka Fi Gani Kafin Yin Odar Maye Guri

Magance matsalolin kwamfresan ɗakin sanyi yawanci yana farawa da koke guda na gaggawa: ɗakin ba ya riƙe zafin da aka saita. Ga masu gyara, kamfanonin sabis, da masu sayen spare parts, tambaya ta gaba ta fi tsada: shin compressor ɗin ne da gaske ya lalace, ko wani laifin tsarin ne ke sa ya bayyana haka?

Compressor shi ne zuciyar tsarin sanyaya na ɗakin sanyi, amma kuma wutar lantarki, controls, refrigerant charge, kwararar iska, dawowar mai, yanayin bututu, da yanayin aiki suna shafar sa. Sauya shi da wuri zai iya ɓata kuɗi kuma ya bar ainihin matsalar ba a warware ba. Sauya shi da jinkiri kuma zai iya jawo asarar kaya, maimaituwar lalacewa, da lalacewar wasu sassa.

Wannan jagora yana rufe alamomin da aka fi gani a ɗakunan sanyi na kasuwanci da walk-in freezers: compressor baya farawa, overload tripping, high discharge temperature, low suction pressure, matsalolin mai, winding failure, da hayaniya mara kyau. Haka kuma yana bayyana lokacin da gyara zai iya zama mai ma’ana da lokacin da yin odar replacement compressor ya zama shawara mafi amfani.

Fara da Binciken Tsarin na Asali

Kafin a yanke hukuncin cewa compressor ya lalace, tabbatar cewa ana neman tsarin sanyaya ya yi aiki a ƙarƙashin yanayi na al’ada. Yawancin alamomin lalacewar compressor na faruwa ne saboda matsalolin waje.

Tabbatar da korafin aiki

Korafe-korafe daban-daban suna nuna hanyoyin bincike daban-daban:

• Ɗakin sanyi ba ya sanyaya: Na iya haɗawa da ƙarfin compressor, ƙarancin refrigerant, daskarewar evaporator, takurewar valve, matsalolin condenser, ko saitunan sarrafawa.
• Compressor ba ya farawa: Sau da yawa yana da alaƙa da lantarki, sarrafawa, ko motor.
• Compressor yana farawa sannan ya tsaya: Na iya zama overload, high pressure, low voltage, kariyar mai, ko matsin aikin inji na ciki.
• Breaker yana katsewa nan take: Na iya nuna windings da suka yi short, motor da ya yi grounding, rotor da ya makale, contactor da ya lalace, ko matsalar wiring.
• Aiki da hayaniya: Na iya kasancewa daga mounting, girgizar bututu, liquid floodback, sassan ciki da suka lalace, ko matsalolin dawowar mai.

Cikakken tarihin alamomin matsala yana taimaka wa masu sayen sassa su guji odar nau’in compressor ko ƙarfin da bai dace ba.

Fara da duba wuta da controls

Duba lantarki na asali na iya hana sauya compressor ba tare da bukata ba. Ya kamata technicians su tabbatar da:

• Daidaitaccen supply voltage a terminals na compressor
• Phase balance a tsarin three-phase
• Fitar control circuit daga thermostat, controller, pressure switch, ko safety relay
• Yanayin contactor da contact resistance
• Saitin overload relay da yanayinsa
• Terminals masu sako-sako, wiring da ya ƙone, ko connectors da suka yi zafi sosai
• Daidaitattun capacitor values a single-phase compressors

Kwampreso da ba ya samun ƙarfin lantarki da ya dace ba ba za a iya yanke masa hukunci da adalci ba. Ƙarancin ƙarfin lantarki, rasa phase, ko gurɓatattun kayan farawa na iya sa kwampreso mai lafiya ya kasa farawa ko ya riƙa yin trip akai-akai.

Duba kwararar iska da fitar da zafi

Kwampreson cold room na iya yin zafi fiye da kima ko ya kashe ko da kuwa kwampreson kansa yana da ingancin mechanical. Duba ɓangaren condenser da evaporator:

• Datti a condenser coil ko toshewar kwararar iska
• Lalacewar condenser fan motor
• Babban ambient temperature a kusa da condensing unit
• Evaporator coil ya yi ƙanƙara
• Lalacewar evaporator fans
• Dattin filters ko takura wa iska
• Rashin kyau na door sealing da yawan heat load

Idan tsarin ba zai iya fitar da zafi yadda ya kamata ba, discharge pressure da discharge temperature suna ƙaruwa. Wannan na iya haifar da overload tripping, lalacewar mai, ƙarancin sanyaya, da lalacewar kwampreso na dogon lokaci.

Alamomin Matsalolin Kwampreson Cold Room da Ake Yawan Gani

Kwampreso ɗaya na iya nuna alamomi da dama a lokaci guda. Tsararren bincike yana taimakawa wajen gano ko kwampreson ya lalace a ciki ko yanayin tsarin ne ke shafar sa.

Kwampreso baya farawa

Kwampreso da baya farawa yana ɗaya daga cikin kiran sabis na refrigeration da aka fi samu. Dalilin na iya kasancewa na lantarki, na mechanical, ko mai alaƙa da control.

Abubuwan da ka iya jawo hakan sun haɗa da:

• Babu wutar lantarki ko ƙarfin lantarki ba daidai ba
• Kewayen sarrafawa a buɗe
• Thermostat, controller, pressure switch, ko time delay da ya lalace
• Contactor da ya ƙone ko wayoyi da suka saki
• Start capacitor, run capacitor, relay, ko potential relay da ya gaza
• Internal overload ya buɗe saboda zafi fiye da kima
• Rotor ya kulle ko compressor ya makale
• Winding na motor a buɗe

Mataki mai amfani wajen gano matsala shi ne tantance ko compressor yana samun siginar farawa da ƙarfin lantarki daidai. Idan akwai ƙarfin lantarki amma compressor yana yin ƙara, yana jan current mai yawa, kuma baya farawa, ya kamata technician ya duba start components da yanayin locked-rotor. A kan compressors na three-phase, dole ne a tabbatar babu phase loss ko yanayin phase da ba daidai ba.

Idan compressor bai fara aiki ba bayan an tabbatar da wuta daidai, controls, da starting components, to matsalar lantarki ko ta inji a ciki na zama mafi yiwuwa.

Compressor overload yana katsewa

Compressor overload tripping yana kare motor daga current ko zafin jiki fiye da kima. Yana iya katsewa yayin farawa ko bayan ya yi aiki na wani lokaci.

Dalilai na yau da kullum sun haɗa da:

• Ƙarancin ƙarfin lantarki ko voltage imbalance
• High head pressure daga rashin isasshen airflow na condenser
• Refrigerant overcharge ko non-condensables
• Sassan compressor na inji da suka yi tsauri
• Locked rotor yayin farawa
• Incorrect overload setting
• Faulty contactor ko haɗin lantarki mara kyau
• Compressor yana aiki a wajen application range ɗinsa

Ga ɗakin sanyi, katsewar overload sau da yawa tana bayyana a lokacin yanayin zafi na waje, bayan an yi watsi da condenser mai datti, ko bayan kuskuren aikin refrigerant. Maimaita resets ba tare da gyara dalilin ba na iya sa insulation na winding ya yi zafi sosai kuma ya rage rayuwar compressor.

Idan current draw ya ci gaba da kasancewa mai yawa a ƙarƙashin yanayin pressure da voltage na al’ada, compressor na iya samun lalacewar mechanical na ciki, lalacewar bearing, ko tabarbarewar motor.

Babban discharge temperature

Babban discharge temperature alama ce mai tsanani ta gargaɗi. Zai iya carbonize oil, lalata valves, raunana insulation, kuma a ƙarshe ya kai ga gazawar compressor.

Dalilai masu yiwuwa sun haɗa da:

• Ƙarancin refrigerant charge
• Ƙarancin suction pressure ko babban compression ratio
• Rashin isasshen evaporator airflow
• Saitin superheat mara daidai
• Toshewar liquid line filter drier ko expansion valve
• Condenser mai datti ko babban condensing temperature
• Rashin isasshen suction gas cooling
• Compressor yana aiki fiye da intended temperature range ɗinsa

Babban discharge temperature ba koyaushe yana nufin dole ne a maye gurbin compressor ba. A lokuta da yawa, tushen matsalar yana da alaƙa da tsarin: ƙarancin charge, restriction, rashin kyakkyawan airflow, ko rashin daidaitaccen gyaran expansion valve. Duk da haka, idan compressor ya yi aiki da zafi na dogon lokaci, lalacewar internal valve da tabarbarewar oil na iya riga sun kasance.

Alamomin zafi mai tsanani sun haɗa da ƙamshin mai da ya ƙone, mai da ya sauya launi, tashoshi da suka lalace, yawan katsewar overload, da raunin aikin famfo ko da bayan an gyara tsarin.

Ƙarancin matsin suction

Ƙarancin matsin suction sau da yawa yana da alaƙa da ɗakin sanyi da ba ya yin sanyi yadda ya kamata. Haka kuma yana iya ƙara zafin discharge kuma ya haifar da dumamar compressor fiye da kima.

Dalilai na yau da kullum sun haɗa da:

• Ƙarancin refrigerant charge
• Toshewar liquid line
• Toshewar filter drier
• Rashin isasshen ciyarwa daga expansion valve
• Toshewa saboda danshi ko ƙanƙara
• Ƙanƙarar evaporator coil
• Rashin kyakkyawan aikin evaporator fan
• Ƙarancin heat load ko saitunan controller da ba daidai ba

Bai kamata a maye gurbin compressor kawai saboda matsin suction ya yi ƙasa ba. Mai fasaha yana buƙatar bambance matsalolin famfon compressor daga matsalolin ciyarwa da kwararar iska. Idan matsin suction ya yi ƙasa yayin da superheat ya yi yawa, evaporator na iya zama ba a ciyar da shi isasshe. Idan matsin suction ya yi ƙasa tare da evaporator mai ƙanƙara, matsalolin kwararar iska ko defrost na iya kasancewa.

Compressor mai bawuloli da suka lalace na iya nuna ƙarancin capacity da halayen matsa lamba marasa al'ada, amma ya kamata a tabbatar da hakan da karatun matsa lamba, current draw, ma'aunin zafi, da binciken yanayin tsarin.

Matsalolin mai

Matsalolin mai babban dalili ne da ke sa compressors su lalace a aikace-aikacen ɗakin sanyi. Compressor yana dogara da daidaitaccen matakin mai, ingancin mai, da dawowar mai.

Alamomin da suka shafi mai na yau da kullum sun haɗa da:

• Ƙarancin matakin mai a cikin gilashin dubawa inda ya dace
• Kumfar mai yayin farawa
• Mai na fita daga compressor kuma baya dawowa
• Mai ya ƙone ko ya yi duhu
• Na’urar kariyar matsin mai na kashe aiki a kan semi-hermetic units
• Hayaniyar bearing ko bugun inji
• Samuwar sludge ko acid bayan burnout

Asarar mai na iya faruwa sakamakon zubar refrigerant, rashin kyakkyawan ƙirar piping, dogayen hanyoyin bututu, girman bututu da bai dace ba, ƙarancin saurin refrigerant, yawan floodback, ko maimaita short cycling. Kumfar mai na iya nuna cewa refrigerant ya shiga cikin crankcase yayin lokutan da na’urar ba ta aiki.

Idan an gano matsalar mai, maye gurbin compressor ba tare da gyara dawowar mai, migration na refrigerant, ko matsalolin piping ba na iya haifar da wata gazawa. Wannan yana da muhimmanci musamman ga kamfanonin sabis da contractors da ke kula da remote condensing units da manyan cold rooms.

Gazawar winding

Gazawar winding alama ce mai ƙarfi cewa compressor ba ya sake dacewa da aiki. Tana iya bayyana a matsayin open winding, shorted winding, grounded winding, ko compressor burnout.

Technicians yawanci suna duba windings na compressor ta amfani da gwaje-gwajen resistance da insulation. Alamomin gargaɗi sun haɗa da:

• Breaker yana katsewa nan take lokacin da aka ba compressor wuta
• Karatun megohmmeter yana nuna lalacewar rufin lantarki zuwa ƙasa
• Juriya ta winding ba daidai ba a kan motoci masu matakai uku
• Buɗaɗɗen da’ira ta cikin winding na mota
• Warin ƙonewa daga terminals ko mai
• Mai ya yi baƙi bayan mummunar gazawar lantarki

Winding da ya yi grounding ko short yawanci yana buƙatar maye gurbin compressor. Bugu da ƙari, refrigeration circuit na iya buƙatar tsaftacewa don cire acid, danshi, sludge, da tarkace. Ga masu rarrabawa da masu sayen sassa, gazawar winding kuma na nufin cewa odar maye gurbi ya kamata ta yi la’akari da ƙayyadaddun lantarki masu dacewa, refrigerant, zangon zafin aikace-aikace, da bayanan mounting.

Hayaniya da rawar jiki marasa kyau

Hayaniyar compressor mara kyau na iya fitowa daga cikin compressor ko daga matsalolin shigarwa na waje. Bambancin yana da muhimmanci.

Dalilan waje sun haɗa da:

• Bolts na mounting da suka sassauta ko rubber mounts da suka lalace
• Pipework yana taɓa frame ko bango
• Rawar jikin liquid line ko suction line
• Taɓawar condenser fan ko rashin daidaito
• Panels da suka sassauta a kan condensing unit

Dalilan da suka shafi tsarin sun haɗa da:

• Liquid floodback zuwa compressor
• Refrigerant migration da dilution na mai
• Slugging lokacin farawa
• Rashin dawowar mai yadda ya kamata
• Matsanancin pressure ratio

Abubuwan da ke cikin compressor da ke jawo matsala sun haɗa da bearings da suka lalace, bawuloli da suka lalace, springs da suka karye, ko lalacewar sassa na inji. Ƙaramar rawar jiki da ta samo asali daga taɓawar bututu za a iya gyarawa cikin sauƙi. Bugawa mai ƙarfi, niƙa, ko hayaniya da ke maimaituwa lokacin farawa na iya nuna lalacewar ciki ko liquid slugging. Idan akwai dawowar ruwa, dole ne a gyara dalilin kafin a saka sabon compressor.

Yadda Ake Yanke Shawara Ko Dole Ne A Sauya Compressor

Manufar gano matsalar compressor ba kawai gano kuskure ba ce, har ma da yanke shawarar hanyar gyara mafi aminci da tattalin arziƙi. Sauyawa ba koyaushe ake buƙata ba, amma wasu yanayi na sa hakan ya zama shawarar da ta dace.

Matsalolin da Wataƙila Ba Sa Buƙatar Sauyawa

Compressor na iya sake amfani idan gwaji ya nuna cewa yana da kyau ta fuskar lantarki da inji, kuma matsalar tana waje. Misalai sun haɗa da:

• Capacitor, relay, ko contactor da ya lalace
• Saitin controller da ba daidai ba ko thermostat mai matsala
• Dattin condenser coil da ke haifar da matsin lamba mai yawa
• Ƙarancin refrigerant charge saboda leak da za a iya gyarawa
• Filter drier da ya toshe ko matsalar expansion valve
• Gazawar evaporator fan ko matsalar defrost
• Wayoyi masu sakakkiya ko haɗin terminal mara kyau
• Saitin overload da ba daidai ba

A irin waɗannan lokuta, sauya ɓangaren da ya lalace, gyara matsalar refrigeration, da sa ido kan aikin compressor na iya dawo da aiki yadda ya kamata.

Yanayin da Galibi ke Tabbatar da Sauyawa

Yawanci ana buƙatar maye gurbin compressor ko kuma ana ba da shawarar sosai idan akwai hujja bayyananniya ta gazawar ciki. Misalan da aka fi samu sun haɗa da:

• Grounded, shorted, ko open motor winding
• Locked rotor bayan an kawar da dalilan lantarki na waje
• Mummunan ƙwanƙwasa na inji ko compressor da ya makale
• Burnout tare da gurbataccen mai
• Yawan overload trips a ƙarƙashin yanayin voltage da pressure na al’ada
• Rashin compression saboda lalacewar internal valve ko lalacewar inji
• Gazawar oil pressure mai maimaituwa a kan compressors masu oil safety controls
• Lalacewar jiki ga terminals, housing, ko internal electrical connections

Ga ɗakunan sanyi na kasuwanci, kuɗin lokacin dakatar da aiki ma yana da muhimmanci. Compressor da amincinsa ba a tabbatar ba, ƙila bai dace a ci gaba da amfani da shi a aikace-aikacen ajiyar abinci, magunguna, logistics, ko process cooling inda sarrafa zafin jiki yake da matuƙar muhimmanci ba.

Tabbatar da compatibility kafin yin oda

Da zarar an tabbatar cewa maye gurbin ya dace, dole ne a yi zaɓin compressor cikin kulawa. Masu rarraba spare parts da contractors su tabbatar da muhimman bayanai kafin su yi oda:

• Samfurin compressor ko madaidaicin cross-reference
• Nau’in refrigerant da dacewar nau’in mai
• Iyakar aikace-aikace: matsakaicin zafi, ƙananan zafi, ko amfani na musamman
• Ƙarfin sanyaya a yanayin evaporating da condensing da ake buƙata
• Wutar lantarki, phase, frequency, da voltage
• Hanyar farawa da kayan haɗin lantarki
• Girman haɗe-haɗe da ma’aunin mounting
• Tsarin asali na system da layout na condensing unit
• Ko ana buƙatar ƙarin sassa, kamar filter drier, contactor, overload, capacitor, mai, crankcase heater, ko mounting kit

Sauyawa da ya dace ba kawai daidaita lambar samfur ba ne. Dole compressor ya dace da aikin ɗakin sanyi, refrigerant, yanayin aiki, da wutar lantarki ta yankin.

Bincike na Aiki Kafin Shigar da Compressor na Sauyawa

Compressor na sauyawa na iya lalacewa da sauri idan matsalar asalin system ɗin ta ci gaba. Kafin shigarwa, ya kamata mai fasaha ya ɗauki compressor da ya lalace a matsayin shaida kuma ya nemi dalilin.

Gano dalilin da ya sa tsohon compressor ya lalace

Abubuwan asali na gama gari sun haɗa da:

• Condenser mai datti da babban head pressure
• Rashin refrigerant da overheating
• Liquid floodback ko slugging
• Rashin dawowar mai yadda ya kamata saboda piping mara daidai
• Short cycling saboda matsalolin control
• Rashin daidaiton voltage ko phase loss
• Danshi, acid, ko contamination a cikin circuit
• Cajin refrigerant mara daidai ko tsarin service mara daidai

Idan ba a san dalilin ba, sabon kwampreso zai fuskanci irin haɗarin nan ɗaya.

Tsaftace kuma kare tsarin

Kyakkyawan aikin sauyawa na iya haɗawa da sauya filter drier, gwajin matsa lamba, evacuation, gyaran zubewa, cika refrigerant daidai, da duba superheat da subcooling. A lokutan burnout, ana iya buƙatar ƙarin hanyoyin tsaftacewa don sarrafa gurɓatawa.

Ya kamata a kuma duba kayan lantarki. Contactor da ya lalace, capacitor mai rauni, terminal mara kyau, ko overload da ba daidai ba na iya lalata sabon kwampreso ko da refrigeration circuit ɗin yana da tsabta.

Sa ido bayan farawa

Bayan shigarwa, a rubuta bayanan aiki da zarar tsarin ya daidaita. Karatun da ke da amfani sun haɗa da:

• Suction pressure da discharge pressure
• Suction line temperature da superheat
• Liquid line temperature da subcooling inda ya dace
• Compressor current draw
• Supply voltage da phase balance
• Discharge temperature
• Oil level ko oil pressure inda ya dace
• Cold room pull-down da final room temperature

Waɗannan karatun suna taimakawa tabbatar da cewa kwampreson da aka sauya yana aiki cikin iyaka mai aminci kuma suna samar da tushe don sabis na gaba.

Muhimman Abubuwan Lura ga Masu Saye, Masu Rarrabawa, da Ƙungiyoyin Sabis

Magance matsalar kwamfresan ɗakin sanyi ya kamata ta raba ainihin lalacewar kwamfresa da matsalolin tsarin da kawai suke kama da lalacewar kwamfresa. Rashin farawa na iya faruwa saboda capacitor, da’irar sarrafawa, ko contactor. Yawan katsewar overload na iya faruwa saboda ƙarancin wuta, dattin coils na condenser, ko matsin lamba mai yawa. Ƙarancin matsin suction na iya nuna ƙarancin refrigerant, toshewa, ko matsalolin kwararar iska a evaporator. Matsalolin mai da hayaniya marar al’ada na iya bayyana matsalolin ƙira ko aiki na tsarin da suka fi zurfi.

Sauyawa yawanci ya zama dole idan windings sun yi grounded, windings sun buɗe, rotor ya makale, akwai mummunar lalacewar inji, burnout, ko an tabbatar da asarar compression. Kafin yin oda, tabbatar da model ɗin kwamfresa, refrigerant, zafin aikin da ake amfani da shi, capacity, bayanan lantarki, girman haɗe-haɗe, da duk wasu buƙatun kayan haɗi.

Ga masu rarraba kayan refrigeration na ƙasashen waje, kamfanonin gyara, da masu shigar da ɗakunan sanyi, mafi kyawun sakamako yana zuwa ne daga haɗa sahihin gano matsala da zaɓin madaidaicin abin sauyawa. Wannan hanya tana rage sake faruwar lalacewa, tana ƙara amincewar abokan ciniki, kuma tana tabbatar da ɗakunan sanyi suna ci gaba da aiki cikin aminci bayan gyara.