Zama da Tsarin Tsammanin don Samun Karamin Yadda Ya Kamata A Yi Tsammanin Don Kullum Na Masheen
Don sanin yawan zafin da ake bukata, ana bukatar a yi bincike sosai a kan yanayin zafi da kowane kayan aiki yake da shi. Ku ɗauki manyan manyan motocin da ke da nauyin tan 40 suna fitar da zafi mai nauyin kilowatts 120 idan suka gudu. Drills na juyawa suna ba da labari daban duk da haka, samar da fashewar zafi na ruwa wanda zai iya wuce 15 kW yayin aikin aikin su, kamar yadda aka tsara a cikin waɗannan ƙa'idodin SAE J1995 da duk muka sani. Idan tsarin sanyaya ba daidai ba ne, abubuwa suna samun matsala sosai a cikin yanayin ma'adinai mai zafi. Bayanai na filin daga dillalan Cat a 2023 sun nuna cewa injuna suna kashewa 22% sau da yawa a cikin waɗannan yanayi. Ba abin mamaki ba ne dalilin da ya sa yawancin masu aikin hakar ruwa suke buƙatar tsarin radiator daban-daban kawai don kiyaye ruwa mai amfani da man fetur a yanayin lafiya.
BTU / kW Jagororin Girman Girman Girman Gidan Gidan Gida na Gidan Gida na Gida na Gida na Gida na Gida
Yi amfani da wannan ma'anar da aka tabbatar:
Kullum BTU/h = (Engine kW × 3,412) + (Hydraulic Pump kW × 1.5 × 3,412)
Misalai, karama mai gaba da 400 kW da sistemun hydraulic na 120 kW yana bukatar: (400 Ã 3,412) + (120 Ã 1.5 Ã 3,412) = 1.9 million BTU/h
Radiators suka iya kawo wannan shiga suna bukatar cores na copper-brass da ≥8 rows da 3/4" tube spacing. Overcooling—wanda aka samu a matsayin karama mai yawa—yana tsofowa 18% ƙarshen zaki saboda kankara na thermostat, a cikin Cummins efficiency benchmarks.
Kuma koyon abubuwan da suka iya kawo hanyar kariya na yin kariya ga karama mai gaba, excavators na hydraulic, da rotary drills
| Nau'in kayan aikin | Abubuwan da suka iya kawo kariya na farko | Hanyar muhimman kariya na yin kariya |
|---|---|---|
| karama mai gaba na 150-ton | Turbochargers, exhaust manifolds | Radiators na biyu da staggered fins |
| Masu aikin ruwa | Closed-loop hydrostatic drives | Matsayin kuma yadda ake saukin zaki da coolant |
| Matsayin kuma yadda ake saukin zaki | Tashin kuma yadda ake saukin zaki na percussion hammer, gearbox | Matsayin kuma yadda ake saukin zaki na auxiliary na madaidaici |
Idan dandani ya kawo a cikin abin da ke amfani da ita, zai iya gyara tsarin saukin zaki da kadan daga 30 zuwa 40% kowane kwartal a cikin amfanin iron ore a Australia. Wannan yana nufin cewa masu amfani suka bukata su koyi matsayin kuma yadda ake saukin zaki na debris na madaidaici da matsayin kuma yadda ake saukin zaki na fan shroud na 120 degree don hana abubuwan da suka gudan. A matsayin kuma yadda ake saukin zaki, wannan abin da ke amfani da ita yana da kyau ga matsayin kuma yadda ake saukin zaki na madaidaici. Suna ba da imkanin masu amfani su koyi coolant a yadda ta 50 daraja Celsius ba tare da kuskuren kamar yadda ake saukin zaki, idan suka bi ta TEMA Class R standards. Kuma kada ka gafara kuji matsayin kuma yadda ake saukin zaki na thermal maps na original equipment manufacturer. Daga misalai, Komatsu HD785-7 models suna bukatar 2.2 million BTUs kowane sa’a don hana amfanin da suka gudan lokacin da yadda na gaba ta samu 45 daraja Celsius. Wannan shine abin da ke muna fahimta a lokacin amfanin da suka gudan.
Sanya Tashin Karamin Radiyata Na Maimakon Aiki Ta Yadda Ya Zama Kamar Yadda
Zaunin Dus, Tsanani Na Gwamnati (Kamar Yadda >50°C), da Tsarin Altitude A Cikin Karamin Kula
Radiator na maimakon kafin gida suna gaskiya da shari'ar al'umma wanda ke zama babu amfani da su, wanda ke saita yadda suka yi ayyukan sanya hanyar fuskantar da su daga 15% zuwa 40% kafin yadda laboratari sun bayyana. Lokacin da ayyukan su ya ci gaba daya daga 3,000 mita na sararin, tsanani mai yawa ya faru da shi kuma. Kada 300 mita da aka tashi, yadda fuskantar ya taka zai rufe 3% zuwa 4%. Al'ummar da suka fi 50 daraja Celsius suna zama abin da ke cikin kusurwar da suka fi. Amma abin da ke cikin kusurwar da suka fi shine dust (dust) wanda ke samu. Fins din radiator wanda suka kawo? Suna iya rufe airflow ta hanyar 2/3 kafin 500 sa'at da suka ci gaba. Masu amfani da kira suna ganin cewa suka bukatar yin amfani da dukkan wannan abu domin su samun fuskantar da ke da amfani da shi a waje.
- Aluminum cores wanda suka fi da kusurwar korrosion, da fin spacing mai yawa
- Sistemin da suka fi da pressure wanda suka fi da 15–20 psi coolant pressure a sararin
- Sistemin da aika kuma saukin gaskiya don fuskantar kuma karewa na kusurin da suka daga tsarin mai amfani
Kusurin da ayyukan da kuma kusurin da wuri, kuma kusurin da karama da kusurin da kwambo a cikin tsarin masu yanka da kuma masu yanka da karama a cikin masu yanka da karama
Masu yanka da karama da kuma masu yanka da karama suna karewa kusurin da wuri a cikin tsarin da radiator. A masu yanka da CAT 789, wuri da ke zama a matsayin tsarin da karewa ba suke kara 1.8 m³ — amma yanzu kuma kusurin da hanyar kuma suke kara 250,000 BTU/hr. Yi amfani da wadannan tsari da suka karewa don sanya kuma karewa:
| Matsayin da ake so | Masu yanka da karama na farko | Ayyukan da suka karewa wuri |
|---|---|---|
| Karamin tsarin | 120–150 mm | Tsarin da suka karewa 80–100 mm |
| Karamin abu | Furukki (65 kg/m²) | Aluminum (22 kg/m²) |
| Karamin Kuma | Takamawa ta yanki | Matsayin oil/trans da suka kawo a cikin wani |
Korin aluminum mai gaba daya sun rage masa 60% don hanyar furukki da brass, amma sun gudan cikin karamin kuma da suka taka 35 psi ko karanci. Suka kawo a cikin wani matsayin charge air coolers don gudan fadace a cikin wani mafita mai gaba daya na engine—wanda ke zukar da kyau ga tsari na Komatsu HD785.
Za a zauna abubuwan da suka daga abubuwa masu kara gaba don kara kai tsaye a cikin al'adu na kwayoyin kofa
Masana'antar hakar ma'adinai tana sanya kayan aiki cikin wasu yanayi masu wahala. Muna magana ne game da yanayin da ke cike da ƙurar ƙura, yanayin zafi wanda zai iya hawa sama da digiri 50 Celsius, da kuma injuna masu girgiza kullum kowace rana. Wannan yana nufin cewa radiators dole ne a yi su da kayan aiki na musamman da aka tsara musamman don waɗannan mawuyacin yanayi. Sa'ad da ake zaɓan kayan aiki, masu aiki da yawa suna zaɓar zaɓuɓɓukan da ba su da lalata kamar su aluminum ko ƙwayoyin tagulla domin suna da kyau sosai ga sunadarai da maimaita zafin jiki da sanyaya idan aka kwatanta da ƙarfe na yau da kullum. Ya kamata a yi amfani da filayen radiator da kansu don su zama masu kauri kuma a saka musu murfin kariya. Wadannan murfin suna taimakawa wajen kiyaye radiators suna aiki yadda ya kamata koda kuwa ana yin amfani da su da dukkan abubuwa masu kyau a tsawon lokaci.
Matsaloli da suka amfani da su suna kara farko daga cikin abubuwan da suka taimaka wajen yadda yaro na kayan aiki zai ci gaba. Radiators da suka bukata da alloys da suka gudanarwa suna ci gaba ta hanyar 30% don ya gabata a cikin amfanin kofin kofa da suka fiye da suka amfani da su a matsayin da suka fiye. Wannan yana nufin cewa akwai karamin fuskantarwa mai zuwa, karamin bayanan rarraba, kuma akwai karamin kudi a lokacin da aka ci gaba. A lokacin da kuka ce so radiators, ku ji radiators da suka bukata domin samun karamin halin da suka fiye a cikin kofin kofa ba tare da matsayin da suka fiye a cikin amfanin kofin kofa ba. Wadannan kayan aiki da suka fiye suna kara tsarin kuma suna ci gaba a lokacin da aka ci gaba ba tare da karamin yadda suka yi aiki ba.
Kiyaye Tsarin Da Zai Ci Gaba Ta Hanyar Tsarin Da Kofin Kofa Ya Samu Radiator Da Kofin Kofa Da Tsarin Da Kofin Kofa
Tsarin Da Zai Ci Gaba: Matsayin Da Kofin Kofa Da Suwa – Dukkia Na Port, Fuskantarwa Na Fan Shroud, Kuma Tsarin Na Bolt
Tsarin daidai na kuma a cikin bayanin OEM yana karewa daga kuskuren gaba daya. Don wani abu mai amfani sosai—kamar CAT 789/797, Komatsu HD785/HD985, da Liebherr T 282—tabbata kuwa uku na muhimmi:
- Wurin tashin kofin yana bukatar ta hanyar tsarin kofin na coolant a cikin 2 mm don karewa kuskuren
- Kofin na fan shroud yana bukatar gap na ≥15 mm don karewa kuskuren na blade a lokacin kuskure
- Tsarin bolt yana bukatar ta hanyar tsarin hole daidai don karewa kuskuren na structural stress a cikin kwayoyin
A cewar jaridar Heavy Machinery Journal daga bara, kusan daya cikin hudu na farkon gazawar radiator a kayan aikin hakar ma'adinai ya faru ne saboda hanyoyin sadarwa ba su dace daidai ba. Sa'ad da masu fasaha suka yi ƙoƙarin gyara waɗannan matsalolin a wurin, yawanci suna rage ƙarfin tsarin gaba ɗaya. Mun ga lokuta inda irin wannan aikin filin ya ƙare har ya kai dala dubu goma sha takwas a duk lokacin da wani abu ya lalace. Wannan shine dalilin da ya sa masu amfani da wayoyi masu kyau ke neman kamfanonin da ke samar da waɗannan kayan aiki na musamman na musamman don takamaiman samfurori. Waɗannan kayan aikin suna taimakawa tabbatar da komai ya dace daidai kafin kowa ya fara shigar da sassan. Bambanci yana da tasiri sosai - lokacin aiki na kayan aiki ya ragu kusan rabi lokacin amfani da waɗannan kayan aikin da suka dace maimakon hanyoyin gyarawa na yau da kullun. Ƙari ga haka, radiators da aka saka a wannan hanyar suna riƙe da kyau sosai a cikin aiki na dindindin ba tare da buƙatar kowane gyare-gyare ba bayan haka.
Tambayoyi Masu Yawan Faruwa
Waɗanne abubuwa ne ya kamata a yi la'akari da su sa'ad da ake zaɓar radiators don kayan aikin hakar ma'adinai?
Faktorin muhimman su ne: kula da kudin sauya da kudin yadda ake sauyawa da abubuwan da suka shiga cikin mazanin ku, amfani da abubuwan da suka dace da ma'ajamin OEM, da zayin abubuwan da za su iya gudan kafin halin da suka faru a cikin tattalin arziki.
Wane ne matakin wadanda ba su sauyawa da abubuwan da suka faru a cikin tattalin arziki?
Abubuwan da ba su sauyawa daidai zasu iya haifar da kusantar da karamin tsari, karamin yadda ake sauyawa, da karamin bayanan kira.
Yaya dust ya fahimci yadda ake sauyawa da abubuwan da suka faru a cikin tattalin arziki?
Kullum dust zasu iya karami yadda ake sauyawa daidai, kadan lokaci ta hanyar 40%, wanda zai bukatar kira da kira da abubuwan da suka faru a cikin tattalin arziki don yin sauyawa daidai.
Teburin Abubuwan Ciki
- Zama da Tsarin Tsammanin don Samun Karamin Yadda Ya Kamata A Yi Tsammanin Don Kullum Na Masheen
- Sanya Tashin Karamin Radiyata Na Maimakon Aiki Ta Yadda Ya Zama Kamar Yadda
- Za a zauna abubuwan da suka daga abubuwa masu kara gaba don kara kai tsaye a cikin al'adu na kwayoyin kofa
- Kiyaye Tsarin Da Zai Ci Gaba Ta Hanyar Tsarin Da Kofin Kofa Ya Samu Radiator Da Kofin Kofa Da Tsarin Da Kofin Kofa
- Tambayoyi Masu Yawan Faruwa