Shigarwa: Mai sakawa ya yi daidai da rashin aikin iska mai sassauƙa.Babban shigarwa yana daidai da babban aikin iska daga magudanar ruwa masu sassauƙa.Kuna yanke shawarar yadda samfurin ku zai yi aiki.(David Richardson)
Mutane da yawa a cikin masana'antunmu sun yi imanin cewa kayan bututun da aka yi amfani da su a cikin shigarwa yana ƙayyade ikon tsarin HVAC don motsa iska.Saboda wannan tunanin, ducting mai sassauƙa yakan sami mummunan rap.Matsalar ba nau'in kayan bane.Madadin haka, muna shigar da samfurin.
Lokacin da kuka gwada tsarin da ba su da inganci waɗanda ke amfani da ducting masu sassauƙa, za ku haɗu da matsalolin shigarwa akai-akai waɗanda ke rage kwararar iska da rage jin daɗi da inganci.Duk da haka, ta hanyar kula da cikakkun bayanai, zaka iya gyara sauƙi da kuma hana mafi yawan kurakurai.Bari mu dubi matakai guda biyar don taimaka muku mafi kyawun shigar da ducting don kiyaye tsarin ku yana aiki yadda ya kamata.
Don inganta ingancin shigarwa, guje wa juyawa mai kaifi na bututun da aka lanƙwasa ta kowane farashi.Tsarin yana aiki mafi kyau lokacin da kuka shimfiɗa bututun daidai gwargwado.Tare da cikas da yawa a cikin gidajen zamani, wannan ba koyaushe zaɓi bane.
Lokacin da bututun zai yi jujjuyawar, yi ƙoƙarin kiyaye su kaɗan.Dogayen juyi mai faɗi yana aiki mafi kyau kuma yana ba da damar iska ta wuce cikin sauƙi.Sharp 90° yana lanƙwasa bututu mai sassauƙa a ciki kuma yana rage iskar da ake bayarwa.Yayin da kaifi juyawa yana hana iska, matsa lamba a cikin tsarin yana ƙaruwa.
Wasu wuraren gama gari inda waɗannan hane-hane ke faruwa shine lokacin da ba a haɗa kayan aikin famfo ba daidai ba zuwa tashi sama da takalma.Haɗuwa sau da yawa suna da matsewar juyi waɗanda ke kawo cikas ga iska.Gyara wannan ta hanyar ba da isassun goyan baya don canza alkibla ko ta amfani da maƙarƙashiyar ƙarfe.
Tsarin tsari wata matsala ce ta gama gari da zaku samu a cikin ɗakuna da yawa.Don gyara wannan, kuna iya buƙatar sake hanyar bututu ko nemo wani wuri don guje wa juyawa mai kaifi.
Wani dalili na yau da kullun na rashin samun iska da korafe-korafen jin dadi shine raguwa saboda rashin isasshen tallafin bututu.Yawancin masu sakawa suna rataye bututun kawai kowane ƙafa 5-6, wanda zai iya haifar da raguwa mai yawa a cikin bututu.Wannan yanayin yana daɗaɗaɗawa akan rayuwar bututun kuma yana ci gaba da rage yawan iska.Da kyau, mai sassauƙan bututu bai kamata ya yi ƙasa fiye da inch 1 sama da tsayin ƙafa 4 ba.
Lanƙwasawa da bututun sagging suna buƙatar ƙarin tallafi.Lokacin da kake amfani da kunkuntar kayan rataye kamar tef ɗin manne ko waya, bututun na iya toshewa a wannan lokacin.A lokuta masu tsanani, wayoyi na iya yanke su cikin ducts, haifar da iska zuwa cikin wuraren da ba su da sharadi na ginin.
Lokacin da waɗannan kurakuran suka kasance, ana toshe iska kuma yana raguwa.Don kawar da waɗannan matsalolin, shigar da tallafi a lokuta da yawa, kamar kowane ƙafa 3 maimakon 5, 6, ko 7 ƙafa.
Yayin da kuke shigar da ƙarin tallafi, zaɓi kayan ɗaurin ku cikin hikima don hana hanawa ba da niyya ba.Yi amfani da aƙalla ƙugiya 3-inch ko manne karfe don tallafawa bututu.Saddles bututu samfuri ne mai inganci wanda kuma za'a iya amfani dashi don tallafawa bututu masu sassauƙa amintattu.
Wani lahani na yau da kullun wanda ke haifar da ƙarancin iskar iska yana faruwa lokacin da sassauƙan ainihin bututun ya ƙwanƙwasa lokacin da aka haɗa shi da taya ko lokacin cirewa.Wannan na iya faruwa idan ba ku shimfiɗa cibiya ba kuma ku yanke shi zuwa tsayi.Idan ba ku yi haka ba, matsalar mannewa za ta tsananta ta hanyar damfara tushen da zaran kun ja rufin akan taya ko abin wuya.
Lokacin gyaran ductwork, yawanci muna cire har zuwa ƙafa 3 na ƙarin ainihin abin da ƙila za a rasa a duban gani.Sakamakon haka, mun auna haɓakar iska daga 30 zuwa 40 cfm idan aka kwatanta da bututun 6 inci.
Don haka tabbatar da cire bututun da ƙarfi sosai.Bayan haɗa bututun zuwa taya ko cire shi, sake ƙarfafa shi daga ɗayan ƙarshen don cire abin da ya wuce kima.Ƙare haɗin ta haɗa zuwa ɗayan ƙarshen kuma kammala shigarwa.
Dakunan dakunan da ke nesa kwalaye ne masu murabba'i ko alwatika waɗanda aka yi daga ductwork a cikin ɗakuna na kudanci.Sun haɗa babban bututu mai sassauƙa zuwa ɗakin, wanda ke ciyar da ƙananan bututu da yawa waɗanda ke fitowa daga ɗakin.Manufar tana da ban sha'awa, amma suna da batutuwan da ya kamata ku sani.
Wadannan kayan aiki suna da babban matsin lamba da rashin jagorancin iska yayin da iska ke ƙoƙarin barin dacewa.An yi asarar iska a cikin taron.Wannan ya samo asali ne saboda asarar ƙarfi a cikin kayan aiki lokacin da iskar da aka kawo daga bututu zuwa kayan aiki ya faɗaɗa zuwa wuri mafi girma.Duk gudun iska zai ragu a can.
Don haka shawarata ita ce a guji waɗannan kayan haɗi.Madadin haka, la'akari da tsarin haɓakawa mai tsayi, tsalle mai tsayi, ko tauraro.Farashin shigar waɗannan masu daidaitawa zai ɗan yi girma fiye da shigar da plenum mai nisa, amma haɓakar aikin iska zai zama sananne nan da nan.
Idan ka yi girman duct ɗin bisa ga tsoffin ƙa'idodin babban yatsan hannu, za ka iya yin abu ɗaya kamar yadda aka saba kuma har yanzu tsarin bututun naka zai yi mara kyau.Lokacin da kuka yi amfani da hanyoyin guda ɗaya waɗanda ke aiki don bututun ƙarfe don girman bututu mai sassauƙa, yana haifar da ƙarancin iska da matsanancin matsa lamba.
Waɗannan kayan bututun suna da tsarin ciki daban-daban guda biyu.Karfe na takarda yana da santsi mai santsi, yayin da ƙarfe mai sassauƙa yana da cibiya marar daidaituwa.Wannan bambance-bambance sau da yawa yana haifar da mabambantan farashin iska tsakanin samfuran biyu.
Mutum daya tilo da na sani wanda zai iya yin sassauƙan ducting kamar karfen takarda shine Neil Comparetto na The Comfort Squad a Virginia.Yana amfani da wasu sababbin hanyoyin shigarwa waɗanda ke ba kamfaninsa damar cimma aikin bututu iri ɗaya daga kayan biyu.
Idan ba za ku iya sake haifar da mai sakawa Neal ba, tsarin ku zai yi aiki mafi kyau idan kun ƙirƙira bututu mai sassauƙa mafi girma.Mutane da yawa suna son yin amfani da juzu'i na 0.10 a cikin lissafin bututun su kuma suna ɗauka cewa inci 6 na bututu zai samar da kwararar 100 cfm.Idan waɗannan tsammaninku ne, to sakamakon zai ba ku kunya.
Koyaya, idan dole ne kayi amfani da Kalkuleta na bututun ƙarfe da tsoffin ƙima, zaɓi girman bututu tare da ƙimar juzu'i na 0.05 kuma bi umarnin shigarwa a sama.Wannan yana ba ku damar samun nasara mafi kyau da tsarin da ke kusa da batu.
Kuna iya yin gardama duk rana game da hanyoyin ƙirar bututu, amma har sai kun ɗauki ma'auni kuma tabbatar da shigarwar yana isar da iskar da kuke buƙata, duk zato ne.Idan kuna mamakin yadda Neil ya san zai iya samun kayan ƙarfe na naɗaɗɗen tubing, saboda ya auna shi ne.
Ƙimar motsin iska da aka auna daga dome mai daidaitawa shine inda roba ya hadu da hanya don kowane shigarwar bututu mai sassauƙa.Yin amfani da shawarwarin da ke sama, zaku iya nuna wa mai shigar da ku ƙarar iskar da waɗannan haɓakawa ke kawowa.Taimaka musu su ga yadda hankalinsu yake dalla-dalla.
Raba waɗannan shawarwari tare da mai sakawa kuma sami ƙarfin hali don shigar da tsarin aikin famfo ɗin ku yadda ya kamata.Ba wa ma'aikatan ku damar samun aikin daidai da farko.Abokan cinikin ku za su yaba shi kuma za ku yi ƙasa da yuwuwar sake kira.
David Richardson Mai Haɓaka Manhaja ne kuma Mai koyar da Masana'antu na HVAC a Cibiyar Ta'aziyya ta Ƙasa, Inc. (NCI).NCI ta ƙware a horo don haɓakawa, aunawa da tabbatar da aikin HVAC da gine-gine.
If you are an HVAC contractor or technician and would like to learn more about high precision pressure measurement, please contact Richardson at davidr@ncihvac.com. The NCI website, www.nationalcomfortinstitute.com, offers many free technical articles and downloads to help you grow professionally and strengthen your company.
Abubuwan da aka Tallafi wani yanki ne na musamman na biyan kuɗi inda kamfanonin masana'antu ke ba da inganci, rashin son zuciya, abubuwan da ba na kasuwanci ba kan batutuwan da ke da sha'awa ga masu sauraron labarai na ACHR.Kamfanonin talla ne ke bayar da duk abun ciki da aka tallafawa.Kuna sha'awar shiga cikin sashin abun ciki da aka tallafa mana?Tuntuɓi wakilin ku na gida.
Akan Bukatar A cikin wannan gidan yanar gizon, za mu koyi game da sabbin abubuwan sabuntawa zuwa na'urar sanyaya R-290 na halitta da kuma yadda zai tasiri masana'antar HVACR.
Lokacin aikawa: Afrilu-19-2023