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Fahimtar CFM, Shawarar Tsawon Sama, da Nau'in Aiki na System
CFM da Bukatar Airflow don Gudu Mai Sauƙi na Radiator a Cikin Ma'ajin da ke ƙarƙashin Tasawa
Samun sauya na mahadiyar radiator lokacin da yaki suna taka da kyau ya dace da inganta kama-girma. CFM ita ce abreviation na Cubic Feet per Minute, wanda ta nufin yadda girman hawa mai zuwa cikin tsarin kowace minti. Wannan lamba tana muhimmiyar rawa saboda ta kiyasi alama za a iya kawo shan gindi daga kayayyakin. Lokacin da muna talkita kan wurare da yaki suna fiye da 120 daraja Fahrenheit, abubuwan suna zama mahalarta sosai. Idan baa kunna girman hawa mai zuwa cikin radiators, duk dama zai sami wani abu a ma'ana thermal runaway. Shin wasuwa a nan? Sai kamancin shiga shan gindi ya kara taguwa, kada kusan harshen arba'in farko. Don gano yadda CFM kake bukata, masu girma suna duba akan abubuwar biyu: kama-girma na shan gindi mai zuwa daga maye amfanin da kuma farko bayani na hawan hawa mai zuwa da mai fitowa.
- Kamaƙi na zuma = Wattage na maye amfanin ÷ 3.41 (gyara BTU)
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CFM Na Iyakar = Kama-girma na BTU ÷ (ΔT × 1.08)
Misali, mai tshekar da 50kW a 30°F ΔT yana buƙatar ~1,850 CFM. Kama-tsakanin yanki na gudu yaƙumbawa canjin girma na kayan ajiya ta 15–25°F kowace 10% kulawa na CFM, wanda ke taimakawa cikin kawo matsala.
Kula da tsawon pressure da airflow a cikin core na radiator
Stacks na fin na girmama suna zama alhaji ga airflow wanda ake tadawa shi ne kamar tsawon pressure (inches H₂O). Fans na high-static-pressure suna kula da saukin CFM labarin alhaji—wanda ke mahimmanci ga radiators mai tsauri tare da 16+ FPI (fins per inch). Dua:
| Faktar | Alhajin karama | Alhajin ƙarƙashewa |
|---|---|---|
| Yawan fins | <12 FPI | >16 FPI |
| Nau'in fan mai amfani | Axial | Centrifugal |
| Matsayin matsin lamba | 0.10.3" H2O | 0.41.0" H2O |
| Fiye da ƙarfin matsin lamba na fan yana rage CFM sosai. 0.5 "H2O ƙaruwa na iya rage iska ta hanyar 35% a cikin magoya bayan axial, yayin da masu juyawa na baya-baya suna riƙe da 90% CFM har zuwa 0.8" H2O. |
Amfani da Fans Performance masu lankwasa don daidaita da System juriya masu lankwasa
Ƙididdigar aikin fan yana nuna CFM a kan matsa lamba a cikin RPMs. Tsarin tsarin yana wakiltar iska mai iska ta iska. Hanyar da suke yankewa ta ƙayyade ma'aunin aiki inda ainihin iska ta dace da buƙatar tsarin. Don ingantawa:
- Graph your tsarin kwana ta amfani da lissafta a tsaye matsa lamba a mahara CFM dabi'u
- Ƙarƙashin masana'antun masana'antun masana'antu
- Zaɓi magoya inda masu karkatarwa suka haɗu kusa da iyakar inganci (BEP)
Yin aiki a gefen hagu na BEP yana haifar da rikice-rikice da kuma motar motsa jiki; dama na BEP yana rage iska. Daidaitawa masu dacewa a cikin 10% na BEP rage amfani da makamashi da 1822% yayin da hana yanayin tsayawa a cikin yanayin zafi mai zafi.
Abubuwan da ke da zafi mai zafi da kuma zane na injiniya don ƙarfin fan na radiator
Kayan da ba sa yin zafi: Filastik, Gami, da kuma IP68
Idan masu son radiator suna aiki sama da digiri 200 Celsius, suna bukatar kayan aiki na musamman da ba za su rabu da wannan zafi ba. Don sassan da ke fuskantar matsanancin zafin jiki, injiniyoyi galibi suna juya zuwa filastik mai zafin jiki kamar PEEK, wanda ke nufin Polyether Ether Ketone. Wadannan filastik suna riƙe da siffarsu ko da abubuwa sun yi zafi sosai kuma ba su lalace cikin sinadarai ba. A halin yanzu, sassan da ke kusa da tsarin fitarwa yawanci suna amfani da kayan haɗin nickel saboda ƙarfe na yau da kullun zai yi tsatsa da sauri. Ƙari ga haka, ana bukatar a yi la'akari da hatimi. Dole ne su cika matakan kariya na IP68 daga ruwa da ƙura suna shiga cikin inda ba su kamata ba. Ƙarar ƙura da kuma danshi suna sa abubuwa su kasa aiki. Don haka zabar kayan da suka dace ba kawai game da saduwa da ƙayyadaddun bayanai ba ne a zahiri abin da ke kiyaye waɗannan tsarin suna aiki yadda ya kamata tsawon shekaru maimakon watanni.
- Tackalwar Tackalwar hana warping a matsananci yanayin zafi
- Rubutun Tsohon Kasa rage lalacewar farfajiya a cikin yanayin danshi
- Ƙarƙashin ƙuƙwalwa hana gurɓataccen man shafawa daga ƙwayoyin ƙwayoyin cuta
Mafi kyawun yanayin yanayin fan fan: Radial vs. Forward-curved don Ayyukan Babban Temp
Tsarin ruwan yana da tasiri sosai a kan aikin fan na radiator a cikin yanayin zafi mai zafi. Radial ruwan wukake fice a high-static-matsa lamba muhallin kowa a cikin m radiators, rike yadda ya dace duk da thermal fadada. Tsarin da aka lanƙwasa gaba yana motsa manyan iska amma yana da haɗarin lalacewa sama da 150 °C. Mahimman abubuwan la'akari sun haɗa da:
- Ƙarfin haɓakar zafi : Tsarin radial yana ɗaukar gajiya ta ƙarfe mafi kyau
- Gudanar da ƙarancin ƙarancin : Yana ci gaba da ingantaccen aiki yayin da gidaje ke fadada
- Rarraba ƙarfin iska : Rage lalacewar kwanciyar hankali
Zaɓin kayan aiki da ƙirar inji sune tushen abin dogaro da aiki a cikin yanayin zafi mai tsananin buƙata. Aikin da ya dace yana hana yanayin gazawar da ba a saba ba kamar fashewar ruwan ko kamawa.
Tsarin Gudanarwa da Dabaru na Lubrication don Dogaro na Dogaro
Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙarƙashin Ƙar
Idan ana maganar masu son radiator da suke aiki a yanayi mai zafi sosai, suna bukatar kayan da za su iya jimre da zafin. Bisa ga wani bincike da aka yi a masana'antar sarrafa masana'antu, fiye da rabin matsalolin da ake samu a masana'antu sun dangana ne ga matsalar man shafawa. Don waɗannan aikace-aikace masu wuya, masana'antun suna juya zuwa bearings masu zafi da aka yi da kayan haɗin gwal na musamman ko ma yumbu. Waɗannan abubuwa suna aiki da kyau idan aka haɗa su da man shafawa na roba da aka ƙera su don su yi aiki sama da digiri 300 na Celsius. Mene ne amfanin hakan? Waɗannan ƙwayoyin man shafawa na zamani suna haifar da ɗan taɓawa tsakanin sassan ƙarfe, suna rage matakan gogewa da kusan kashi biyu bisa uku idan aka kwatanta da kayayyakin mai na yau da kullun. Wannan yana kawo bambanci sosai a tsawon lokacin aiki da kuma farashin kulawa.
- Ƙarƙashin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayoyin ƙwayo (misali, PTFE murfin) don rage kiyayewa a cikin rufaffiyar tsarin
- Tsarin ƙirar kai tsaye tare da micro-reservoirs don riƙewa mai tsabta na fim din mai
- Fatsar da ke jurewa oxidation wanda ke riƙe da danko a ƙarƙashin zafin jiki
Tsakanin lokacin shafawa da ya dace yana hana kamuwa da lalacewa, yana tsawaita rayuwar ɗaukar nauyi da 3 5 × a cikin matsanancin yanayi.
Hanyoyin sanyaya mai aiki da aiki don kare ƙungiyoyin ɗaukar kaya
Ingantaccen sarrafawar zafi yana kare bearings daga zafin fitar radiator. Hanyoyin da ba su da amfani sun hada da:
- Ƙarƙashin zafi na aluminum wanda ke ɓoye 40% fiye da karfe
- Ruwan murfin thermal da ke nuna makamashin radiant
- Matsayi mai mahimmanci daga hanyoyin fitarwa kai tsaye
Aikin sanyaya yana haɗuwa da ƙananan micro-fan ko iska mai iska wanda ke ba da iska mai sanyi zuwa ɗakunan ɗaukar kaya. Waɗannan suna rage yanayin zafin jiki na aiki da 70100°C, hana lalacewar man shafawa. Hanyoyin haɗin gwiwar suna haɗuwa da kayan canjin lokaci tare da ɗakunan da aka yi wa iska don aminci a cikin yanayin 150 °C +.