Yadda Ake Zaɓar Kwampreso Mai Dacewa don Ɗakin Sanyi ko Ɗakin Daskarewa

Zaɓen kwampreso don ɗakin sanyi ko ɗakin firiza ba wai kawai batun daidaita ƙarfin horsepower ba ne. Dole ne kwampreso ya iya cire ainihin nauyin zafi na ɗakin a yanayin evaporating da condensing da ake buƙata, yayin da yake aiki cikin aminci tare da refrigerant da aka zaɓa da kuma tsarin ƙira.

Ga masu rarraba kayan refrigeration, kamfanonin sabis, da ’yan kwangilar ɗakunan sanyi, zaɓen kwampreso na ɗakin sanyi daidai yana rage haɗarin garanti, yana inganta daidaiton zafin jiki, kuma yana taimakawa guje wa matsalolin wurin aiki masu tsada kamar short cycling, rashin pull-down mai kyau, yawan zafin discharge, ko ƙarancin ƙarfin sanyaya. Kwampreso da yake kama da ya dace a jerin farashi na iya yin aiki dabam sosai idan aka yi la’akari da zafin ɗaki, zafin muhalli, ingancin insulation, yawan buɗe ƙofa, nauyin kayayyaki, da nau’in refrigerant.

Wannan jagora yana bayyana manyan abubuwan da ke shafar ƙididdige girman kwampreso da zaɓensa don walk-in coolers, ɗakunan firiza, ɗakunan ajiyar sanyi, da aikace-aikacen ƙananan zafin jiki.

Fara Da Aikin Ɗakin Sanyi, Ba Da Samfurin Kwampreso Ba

Zaɓin da ya dace yana farawa ne da yanayin aikin ɗakin sanyi. Ya kamata a zaɓi kwampreso domin ya biya nauyin refrigeration a wani takamaiman evaporating temperature, condensing temperature, refrigerant, da operating envelope.

Don sabon shigarwa, ya kamata a ƙididdige nauyin sanyaya kafin zaɓar kwampreso. Don aikin sauyawa, asalin ƙirar kwampreso tana da amfani, amma bai kamata ta zama abin dogaro kaɗai ba. Yanayin wurin na iya canzawa, tsohon kwampreso na iya kasancewa an zaɓe shi da girman da bai dace ba, ko kuma tsarin na iya yanzu yana aiki da wani refrigerant daban.

Muhimman tambayoyin da za a tabbatar kafin zaɓi sun haɗa da:

• Menene girman ɗakin ciki da ƙarfin ajiyar kaya?
• Shin ɗakin chiller ne na matsakaicin zafin jiki ko freezer ne na ƙananan zafin jiki?
• Wane samfur ake ajiyewa, kuma a wane zafin jiki yake shiga?
• Sau nawa ake buɗe ƙofofi?
• Menene zafin yanayin waje a kusa da condenser?
• Wane refrigerant ake amfani da shi ko aka shirya amfani da shi?
• Waɗanne yanayin zafin evaporating da condensing ake buƙata?
• Shin kwampreso ɗin na sabon tsarin ne, na sauyawa, ko na retrofit?

Waɗannan bayanai suna ƙayyade ainihin wurin aikin kwampreso. Ba tare da su ba, zaɓi zai zama hasashe kawai.

Manyan Abubuwan da ke Shafar Zaɓin Kwampreso na Cold Room

Girman Cold Room da Ƙarfin Ajiyar Kaya

Girman ɗaki yana ɗaya daga cikin bayanan farko da ake shigarwa wajen ƙayyade girman compressor na ɗakin sanyi, amma shi kaɗai bai isa ba. Babban ɗaki gabaɗaya yana da ƙarin samun zafi ta bango, rufi, da ƙasa, kuma na iya buƙatar ƙarin ƙarfin aiki don rage zafin jiki bayan an ɗora kaya. Duk da haka, ɗakuna biyu masu girma iri ɗaya na iya buƙatar compressors daban-daban idan rufinsu, amfani da ƙofa, nauyin kayayyaki, ko kewayon zafin jiki ya bambanta.

Misali, ɗakin sanyaya mai rufi sosai da ake amfani da shi don kayan da aka riga aka kunsa na iya buƙatar compressor daban da ɗakin daskarewa mai girma iri ɗaya wanda ake yawan ɗora masa kayayyaki masu ɗumi. Girman sarari yana taimakawa wajen ƙayyade nauyin asali, amma yanayin aiki ne ke ƙayyade ƙarfin compressor na ƙarshe.

Zafin Jikin Ɗaki da Ake Nufi: Chiller ko Freezer

Zafin jiki da ake nufi yana ɗaya daga cikin muhimman abubuwan zaɓe. Ana yawan raba ɗakunan sanyi zuwa aikace-aikacen matsakaicin zafin jiki da ƙananan zafin jiki.

Ɗakunan matsakaicin zafin jiki sun haɗa da walk-in coolers, ɗakunan abin sha, ajiyar sabbin abinci, da yawancin aikace-aikacen ajiyar sanyi na gama-gari. Waɗannan ɗakunan yawanci suna aiki sama da yanayin daskarewa ko kaɗan a ƙasa da shi, gwargwadon samfurin.

Dakunan ƙananan zafin jiki sun haɗa da dakunan freezer, ajiyar abincin da aka daskare, ajiyar ice cream, dakunan blast holding, da sauran aikace-aikacen da ke buƙatar zafin ɗaki ya ragu sosai. Waɗannan aikace-aikacen suna buƙatar low temperature compressor ko samfurin compressor da aka amince da shi don ƙananan yanayin evaporation.

Compressor na ɗakin freezer dole ne ya yi aiki a ƙananan suction pressure fiye da compressor na matsakaicin zafin jiki. Idan aka yi amfani da compressor a wajen iyakar aikace-aikacen da aka amince da ita, zai iya fuskantar ƙarancin capacity, babban compression ratio, overheating, rashin dawowar oil yadda ya kamata, ko mechanical stress.

Zafin Yanayi a Kewaye da Condenser

Capacity na compressor yana shafar sosai da condensing temperature. A aikace, condensing temperature yana da alaƙa da zafin iskar ko ruwan da ake amfani da shi wajen fitar da zafi daga condenser.

A yanayin zafi mai tsanani, shigarwa a saman rufi, dakunan injina marasa isasshen iska, ko wuraren da iska ke sake zagayawa da yawa, condensing temperature na iya tashi. Mafi girman condensing temperature yana ƙara nauyin aikin compressor kuma yawanci yana rage refrigeration capacity da ake samu. Haka kuma yana iya ƙara discharge temperature da electrical current.

Don ayyukan ƙasashen waje, ya kamata a binciki yanayin muhalli da kyau. Compressor da aka zaɓa don yanayi mai laushi na iya zama bai dace da wuri mai zafi na tropical ba idan condenser da compressor ba a ƙididdige su don mafi girman yanayin condensing ba.

Ingancin Rufi da Yanayin Fanel

Rufi yana rage zafin da ke shiga ɗakin sanyi daga muhallin da ke kewaye. Rufi mara kyau yana ƙara nauyi kuma yana tilasta compressor ya yi aiki na dogon lokaci. Kaurin fanel, kayan rufi, ingancin shigarwa, rufin ƙasa, yanayin vapor barrier, da zubewar iska duk suna tasiri ga ainihin buƙatar sanyaya.

A ayyukan sauyawa, yanayin fanel yana da muhimmanci. Fanel-fanel da suka lalace, rufi mai ɗauke da danshi, door gaskets da suka gaza, thermal bridges, ko gibi a kusa da wuraren shigar bututu na iya ƙara samun zafi. Shigar da compressor mafi girma na iya zama kamar ya magance alamar matsalar, amma kuma yana iya haifar da short cycling ko aiki marar daidaito idan ainihin matsalar ita ce zubewar iska ko gazawar rufi.

Kafin ƙara girman compressor na sauyawa, ƙungiyoyin sabis ya kamata su duba murfin ɗakin da yanayin ƙofa.

Nauyin Kaya da Buƙatar Pull-Down

Nauyin kaya yana nufin zafin da dole ne a cire daga kayan da aka sanya cikin ɗakin sanyi. Wannan na iya zama babban ɓangare na jimillar nauyin refrigeration, musamman idan ana shigar da kaya masu ɗumi akai-akai.

Muhimman bayanai na nauyin kaya sun haɗa da:

• Nau’in kaya da takamaiman buƙatar ajiya
• Zafin shigar kaya
• Zafin ajiya na ƙarshe
• Adadin da ake lodawa a rana ko a kowane batch
• Lokacin pull-down da ake buƙata
• Marufi da ƙuntatawar kwararar iska

Daki da ake amfani da shi kawai don riƙe kayayyakin da aka riga aka sanyaya na iya buƙatar ƙarancin ƙarfin kwampreso fiye da dakin da ake amfani da shi don sanyaya kayayyaki masu ɗumi bayan isarwa ko sarrafawa. Daskare samfur yana buƙatar la’akari da nauyi sosai fiye da riƙe kayayyakin da suka riga sun daskare.

Ga ’yan kwangila da masu rarrabawa, wannan tushen kuskuren zaɓi ne da ake yawan samu. Abokin ciniki na iya bayyana aikace-aikacen a matsayin “ɗakin daskarewa,” amma aikin na iya zama daskare sabon samfur, adana samfurin da ya daskare, ko dawo da zafin jiki bayan yawan lodawa. Waɗannan ba aiki iri ɗaya ba ne.

Buɗe Ƙofofi, Shigar Iska, da Halayen Aiki

Duk lokacin da aka buɗe ƙofa, iska mai ɗumi da danshi tana shiga cikin dakin. Wannan yana haifar da nauyin zafi na zahiri da nauyin danshi. A dakunan daskarewa, shigar danshi kuma yana ƙara kankara a kan evaporators, wanda zai iya rage watsawar zafi kuma ya buƙaci ƙarin defrosting.

Yawan zirga-zirgar ƙofa yana da muhimmanci musamman a cikin dillanci, sabis na abinci, cibiyoyin rarrabawa, da wuraren sarrafawa inda ma’aikata ke shiga akai-akai. Manyan ƙofofi, labulen strip curtains da ke cikin mummunan yanayi, ko ƙofofin da ake bari a buɗe yayin lodawa na iya ƙara nauyin refrigeration sosai.

Ya kamata zaɓi ya yi la’akari da:

• Yawan buɗe ƙofa a kowace awa
• Girman ƙofa da tsawon lokacin buɗewa
• Amfani da strip curtains, air curtains, ko ƙofofi masu saurin aiki
• Hanyar lodawa, kamar hand carts ko forklifts
• Ko dakin yana haɗe da wurin lodawa mai sanyi ko wurin yanayi mai ɗumi

Kwamfreso ba zai iya ci gaba har abada da rama rashin kyakkyawan kula da ƙofofi ba. A wurare da yawa, inganta ladabin amfani da ƙofofi da rage shigar iska na iya zama da muhimmanci kamar ƙarfin kwamfreso.

Refrigerant, Zafin Evaporating, da Zafin Condensing

Dacewar Refrigerant

Kwamfreson da aka zaɓa dole ne ya kasance an amince da shi don refrigerant ɗin da ake amfani da shi a cikin tsarin. Refrigerant yana shafar ƙarfin aiki, matakan matsa lamba, zafin discharge, dacewar mai, sanyaya mota, da iyakar aikace-aikace.

Tsarin refrigeration na kasuwanci na yau da kullum na iya amfani da refrigerants daban-daban bisa ga ƙa’idojin kasuwa, shekarun tsarin, da ƙirar kayan aiki. Bai kamata a zaɓi kwamfreson maye kawai bisa displacement ko horsepower ba idan refrigerant ya canza. Samfurin kwamfreso, nau’in mai, seals, bayanan lantarki, da bayanan aiki dole ne su dace da refrigerant da operating envelope.

Don ayyukan retrofit, ana iya buƙatar ƙarin bincike, ciki har da dacewar mai, dacewar expansion valve, pressure controls, na’urorin tsaro, da ƙarfin condenser. Idan akwai shakku, a yi amfani da bayanan aikin masana’anta da ƙa’idojin aikace-aikacen da aka amince da su.

Zafin Evaporating da Yanayin Suction

Zafin tururi ita ce zafin da refrigerant ke yin tururi a ciki na evaporator. Ba daidai take da zafin ɗaki ba. Zafin tururi yawanci tana ƙasa da zafin ɗaki domin ba da damar canja wurin zafi ta cikin coil na evaporator.

Misali, ɗakin sanyaya da ɗakin daskarewa na iya amfani da zafin tururi daban-daban sosai ko da kuwa iyalin compressor iri ɗaya ne ya bayyana a cikin catalog. Ƙananan zafin tururi yana rage ƙarfin compressor kuma yana ƙara compression ratio. Wannan shi ya sa dole a zaɓi compressor na ɗakin daskarewa daga bayanai na yanayin low-temperature, ba daga teburin aikin medium-temperature ba.

Muhimman abubuwan bangaren suction-side sun haɗa da:

• Zafin ɗaki da ake nufi
• Bambancin zafin evaporator
• Saitin superheat
• Faɗuwar matsin lamba a layin suction
• Yanayin dawowar mai
• Mafi ƙaranci da mafi girman kewayon aiki

Idan an kiyasta zafin tururi ya yi yawa a lokacin zaɓe, compressor na iya zama ƙasa da girman da ake buƙata a ainihin aiki. Idan kuma an zaɓe shi ya yi ƙasa fiye da buƙata, tsarin na iya fi tsada kuma ya yi aiki da ƙarancin inganci.

Zafin Condensing da Yanayin Discharge

Zafin condensing ita ce zafin da refrigerant ke fitar da zafi a cikin condenser. Tana dogara da zafin muhalli, ƙirar condenser, kwararar iska, datti/fouling, zafin ruwa ga tsarin water-cooled, da yanayin shigarwa.

Yanayin zafin condensing mafi girma gabaɗaya yana nufin:

• Ƙarancin ƙarfin refrigeration
• Ƙarin shigar wutar lantarki
• Ƙarin yanayin zafin discharge
• Ƙarin operating pressure
• Ƙarin nauyi a kan compressor

Ga tsarin outdoor air-cooled, ya kamata a zaɓi yanayin zafin condensing tare da la’akari da local design ambient. A yankunan zafi, yana da muhimmanci a tabbatar cewa compressor na iya aiki cikin aminci a lokacin peak conditions. Wannan yana da muhimmanci musamman ga freezer rooms saboda low evaporating temperature tare da high condensing temperature yana haifar da high compression ratio.

Zaɓi Tsakanin Medium-Temperature da Low-Temperature Compressors

Medium temperature compressor da low temperature compressor ba sa musanyawa a duk aikace-aikace. An tsara su kuma an ba su rating don evaporating ranges da operating conditions daban-daban.

Aikace-aikacen Medium-Temperature Compressor

Ana yawan amfani da medium-temperature compressor don:

• Walk-in cooler rooms
• Adana fresh produce
• Adana beverage da dairy
• Flower rooms
• General chilled storage
• Wasu process cooling duties, inda aka amince

Waɗannan tsarin suna aiki da higher suction pressures fiye da aikace-aikacen freezer. Ƙarfin compressor a medium-temperature conditions ya fi na low-temperature conditions, don haka dole ne a ko da yaushe a bincika correct rating point.

Aikace-aikacen Low-Temperature Compressor

Ana amfani da compressor na ƙananan zafin jiki don:

• Dakunan freezer
• Ajiya na abinci mai daskarewa
• Ajiya na ice cream
• Ajiya mai sanyi na ƙananan zafin jiki
• Wasu aikace-aikacen blast freezer ko pull-down, dangane da ƙira

Aikace-aikacen ƙananan zafin jiki suna buƙatar a kula sosai da discharge temperature, compression ratio, oil return, refrigerant mass flow, da defrost strategy. Ba kowane compressor da ya dace da chiller ba ne za a iya amfani da shi a ɗakin freezer.

Sauya Compressor na Walk-In Cooler

Ga masu sayen kayan sauyawa, mafi aminci wurin farawa shi ne nameplate na compressor na asali da bayanan tsarin. Duk da haka, idan ba a samun model na asali, ya kamata a daidaita abin sauyawa da fiye da nominal horsepower kawai.

Duba waɗannan kafin tabbatar da model mai daidai:

• Nau'in refrigerant
• Power supply da phase
• Nau'in compressor da application range
• Cooling capacity a evaporating da condensing temperatures da ake buƙata
• Motor protection da starting method
• Nau'in oil da buƙatun oil charge
• Girman connection da mounting dimensions
• Approved operating envelope

Compressor mai horsepower iri ɗaya na iya samun displacement, efficiency, refrigerant compatibility, ko application range daban. Ya kamata a tabbatar da zaɓin cross-reference koyaushe da performance data.

Tsarin Aiki na Zaɓi Mai Amfani ga Masu Siya da Ƴan Kwangila

Tsarin aiki mai tsari yana taimakawa wajen guje wa kurakurai yayin zaɓar kompresan ajiyar sanyi ko kompresan ɗakin daskarewa.

1. Ƙayyade Aikace-aikacen

Gano ko ɗakin na ajiyar sanyi ne, ajiyar daskare, saukar da zafin samfur, ko wani tsari na musamman. Tabbatar da zafin ɗakin da ake so da buƙatun samfurin. Wannan yana ƙayyade ko ana buƙatar kompresan matsakaicin zafi ko kompresan ƙananan zafi.

2. Lissafa ko Kimanta Jimillar Nauyin Zafi

Jimillar nauyin firiji ya haɗa da shigar zafi ta tsarin ɗakin, shigar iska ta ƙofofi, nauyin samfur, nauyin cikin gida daga fitilu da fanfuna, mutane da ke aiki a cikin ɗakin, da nauyin defrost idan ya dace.

Don ayyukan injiniya, yi amfani da lissafin nauyi da ya dace. Don aikin maye gurbi, kwatanta abubuwan da aka lura a wurin da aikin tsarin da ke akwai. Idan tsohon kompresan ya lalace saboda nauyi fiye da kima ko zafi fiye da kima, kada a ɗauka cewa girman ɗaya ne daidai ba tare da duba tsarin ba.

3. Zaɓi Yanayin Evaporating da Condensing

Zaɓi yanayin zafin evaporating da condensing da suka dace da aikace-aikacen da yanayi. Dole ne a duba aikin kompresan a waɗannan yanayi, ba a kan ƙimar katalog na gaba ɗaya da wataƙila ba ta dace da wurin ba.

Ga ƙasashe masu zafi ko shigarwa a waje, yi amfani da yanayin zafin muhalli mai girma da ya dace. Ga ɗakunan daskarewa, tabbatar da iyakar aikin compressor a haɗin zafin evaporating da ake tsammani mai ƙasa da kuma zafin condensing mai girma.

4. Tabbatar da Refrigerant da Bukatun Lantarki

Tabbatar da dacewar refrigerant, nau’in mai, ƙarfin lantarki, frequency, phase, hanyar farawa, da na’urorin kariya. Masu saye daga ƙasashen waje su ba da kulawa ta musamman ga bambance-bambancen wutar lantarki tsakanin kasuwanni, saboda compressor da ya dace da wani yanki na iya rashin dacewa da ƙarfin lantarki ko frequency na wani yanki.

5. Daidaita Compressor da Dukkan Tsarin

Dole ne compressor ya yi aiki tare da evaporator, condenser, expansion device, controls, da piping. Compressor da aka zaɓa daidai na iya har yanzu yin aiki mara kyau idan condenser ya yi ƙanƙanta, expansion valve bai dace ba, ko suction line ta haifar da mummunar dawowar mai.

Muhimman binciken tsarin sun haɗa da:

• Ƙarfin evaporator a yanayin da aka zaɓa
• Ƙarfin condenser a design ambient
• Dacewar expansion valve ko electronic expansion valve
• Girman suction da discharge line
• Bukatun receiver da accumulator
• Hanyar defrost da dabarun control
• Pressure controls da safety settings

6. Guji Yin Girma Fiye da Kima da Ƙaranta Fiye da Kima

Kwampreso mai ƙaramin ƙarfi na iya yin aiki ba tare da tsayawa ba amma har yanzu ya kasa kaiwa ga zafin da ake so. Wannan na iya haifar da matsalolin ingancin samfur, yawan amfani da makamashi, da matsin aiki ga kwampreso.

Kwampreso mai ƙarfi fiye da kima na iya saukar da zafi da sauri amma ya riƙa kunna-kashewa akai-akai, yana haifar da rashin daidaiton matsin tsotsa, rashin kyakkyawan sarrafa danshi, raguwar dawowar mai, da ƙarin lalacewar sassa na inji. Girman da ya wuce kima kuma na iya ƙara kuɗin shigarwa ba tare da magance matsalolin asali kamar rashin kyakkyawan rufin zafi ko yawan shigar iska ba.

Manufar ba ita ce samun kwampreso mafi girma da ake da shi ba. Manufar ita ce samun ƙarfin da ya dace a ainihin yanayin aiki.

7. Yi Amfani da Bayanan Aiki, Ba Ƙarfin Horsepower Kawai Ba

Horsepower rukuni ne na kimantawa kawai, ba hanyar zaɓi ba ce. Ƙarfin kwampreso yana canzawa bisa ga refrigerant, zafin evaporating, zafin condensing, superheat, subcooling, da yanayin mota.

Don zaɓin kwampreson ɗakin sanyi daidai, a kwatanta ƙarfin sanyaya, shigar wutar lantarki, current, operating envelope, da iyakokin aikace-aikace a wurin aikin da aka nufa. Wannan yana da muhimmanci musamman idan ana kwatanta kwampreso daga nau’o’i daban-daban ko ana maye gurbin samfurin da aka daina kera wa.

Kurakurai na Kowa a Zaɓin Kwampreson Ɗakin Sanyi

Matsaloli da yawa a filin aiki ana iya danganta su da bayanan zaɓi da ba su cika ba. Waɗannan kurakurai suna yawan faruwa a ayyukan ɗakin sanyi da odar maye gurbin kwampreso:

• Zaɓi bisa ƙarfin doki kawai
• Yin watsi da zafin yanayi mai yawa
• Amfani da bayanan matsakaicin zafi don ɗakin daskarewa
• Ɗauka cewa tsohon kwampreso an riga an zaɓe shi daidai
• Canza refrigerant ba tare da duba amincewar kwampreso ba
• Rashin lura da buɗe-buɗen ƙofa da shigar iska
• Yin watsi da zafin shigar samfur da adadin lodin yau da kullum
• Ƙara girman kwampreso maimakon gyara rufin zafi ko zubar iska ta ƙofa
• Rashin daidaita kwampreso da ƙarfin evaporator da condenser
• Rashin duba buƙatun ƙarfin lantarki, frequency, phase, da kariya

Tsarin zaɓi mai aminci yana hana waɗannan matsaloli kafin a yi odar kayan aiki kuma a girka su.

Abin da Masu Saye Ya Kamata Su Bayar Lokacin Neman Zaɓin Kwampreso

Masu rabawa, kamfanonin gyara, da ’yan kwangila za su iya hanzarta zaɓi ta hanyar bayar da cikakken bayanin aikin. Kyakkyawar tambaya game da kwampreso ya kamata ta haɗa da:

• Girman cikin ɗakin sanyi
• Zafin ɗaki da ake nema
• Nau’in samfur da yawan lodin da za a saka
• Zafin shigar samfur
• Zafin yanayi a kusa da condenser
• Nau’in refrigerant
• Wutar lantarki da ake buƙata
• Samfurin kwampreso da ake da shi, idan maye gurbi ne
• Bayanan evaporator da condenser, idan akwai
• Girman ƙofa da yawan buɗewa da ake tsammani
• Duk wasu buƙatu na musamman, kamar ƙarancin amo, girki mai ƙanƙanta, ko aiki a yanayi mai zafi

Don umarnin sauyawa, hotunan farantin sunan kwampreso, farantin sunan tsarin, allon lantarki, da yankin shigarwa na iya taimakawa wajen tabbatar da dacewa. Don sabbin ayyuka, lissafin nauyin sanyaya da yanayin ƙira su ne mafi kyawun tushe don zaɓi.

Muhimmin Abin Lura

Zaɓin kwampreson ɗakin sanyi yana dogara ne da jimillar aikin firiji, ba wai girman ɗaki kawai ko ƙarfin dokin kwampreso ba. Zafin ɗaki, nauyin kaya, buɗe-buɗen ƙofa, rufin kariya, refrigerant, zafin evaporation, zafin condensation, yanayin muhallin waje, da daidaituwar tsarin duk suna shafar zaɓin da ya dace.

Don walk-in coolers, ɗakunan freezer, da aikace-aikacen ajiyar sanyi, mafi kyawun sakamako yana zuwa ne daga daidaita bayanan aikin kwampreso da ainihin yanayin wurin aiki. Wannan yana taimakawa masu rarrabawa su bayar da farashi daidai, ƙungiyoyin sabis su guji kurakuran sauyawa, kuma masu shigarwa su samar da tsarin da ke kula da zafin jiki cikin aminci a ƙarƙashin ainihin yanayin aiki.