Kev nkag tau ntawm cov dej noo thiab cov pa dej yog ib qho tseem ceeb uas yuav tsum xav txog thaum xaiv cov ntaub ntawv rwb thaiv tsev rau ntau yam kev siv. Rau cov roj hmab NBR/PVC ua npuas ncauj rwb thaiv tsev, kev nkag siab txog nws qhov kev nkag tau ntawm cov dej noo thiab cov pa dej yog qhov tseem ceeb rau kev txiav txim siab nws qhov ua tau zoo hauv ntau qhov chaw sib txawv.
Cov roj hmab NBR/PVC ua npuas ncauj rwb thaiv tsev yog cov khoom siv dav dav hauv HVAC, tsheb thiab kev tsim kho vim nws cov khoom rwb thaiv tsev zoo heev thiab yooj ywm. Txawm li cas los xij, ib qho ntawm cov teeb meem tseem ceeb ntawm cov khoom siv no yog nws cov dej noo permeability, lossis lub peev xwm ntawm cov pa dej hla dhau nws.
Qhov dej noo ntawm cov khoom siv rwb thaiv tsev ua los ntawm roj hmab NBR/PVC yog txiav txim siab los ntawm nws cov khoom sib xyaw thiab cov qauv. NBR (acrylonitrile-butadiene roj hmab) thiab PVC (polyvinyl chloride) yog cov khoom siv hluavtaws uas paub txog lawv qhov kev tiv thaiv dej noo. Thaum ua ke nrog cov khoom siv rwb thaiv tsev ua los ntawm roj hmab, lawv tsim cov khoom siv ruaj khov thiab tsis muaj dej uas tiv thaiv tau cov pa dej nkag.
Cov qauv kaw-cell ntawm NBR/PVC roj hmab ua npuas ncauj rwb thaiv tsev ntxiv txhim kho nws cov kev ua tau zoo tiv thaiv dej noo. Tsis zoo li qhib-cell ua npuas ncauj rwb thaiv tsev, uas tuaj yeem nqus thiab khaws cov dej noo, kaw-cell ua npuas ncauj rwb thaiv tsev yog tsim los ntawm cov huab cua kaw uas tsis pub cov dej pa hla dhau. Qhov no ua rau NBR/PVC roj hmab ua npuas ncauj rwb thaiv tsev tiv taus dej noo heev, ua rau nws zoo tagnrho rau cov ntawv thov uas dej noo yog qhov txhawj xeeb.
Tsis tas li ntawd xwb, cov roj hmab NBR/PVC ua npuas ncauj rwb thaiv tsev feem ntau yog coated nrog ib qho chaw tiv thaiv uas muab ib qho ntxiv rau cov dej noo. Lub ntsej muag tuaj yeem ua los ntawm cov ntawv ci txhuas, fiberglass, lossis lwm yam khoom siv uas ua rau cov rwb thaiv tsev tiv thaiv cov dej pa. Los ntawm kev koom ua ke qhov ntsej muag no rau hauv cov rwb thaiv tsev, qhov dej noo permeability ntawm NBR/PVC roj hmab ua npuas ncauj rwb thaiv tsev raug txo qis ntxiv, ua rau nws tsim nyog rau kev siv hauv cov chaw muaj dej noo siab lossis cov ntawv thov sab nraum zoov.
Ntxiv rau qhov tiv taus dej noo, cov roj hmab NBR/PVC ua npuas ncauj rwb thaiv tsev muaj lwm yam txiaj ntsig xws li tiv taus hluav taws, rwb thaiv cua sov thiab nqus suab. Cov yam ntxwv no ua rau nws yog qhov kev xaiv uas siv tau ntau yam thiab ntseeg tau rau ntau yam kev siv, los ntawm kev rwb thaiv cua hauv HVAC systems mus rau kev rwb thaiv cua hauv cov chaw lag luam.
Thaum xav txog qhov permeability ntawm cov dej noo ntawm NBR / PVC roj hmab ua npuas ncauj rwb thaiv tsev, nws yog ib qho tseem ceeb uas yuav tsum xav txog cov kev cai tshwj xeeb ntawm daim ntawv thov. Piv txwv li, nyob rau hauv cov cheeb tsam uas muaj dej noo ntau lossis raug dej noo tas li, nws yuav tsum tau xaiv cov rwb thaiv tsev tuab dua lossis ntau dua airtight kom ntseeg tau tias muaj kev tiv thaiv txaus tiv thaiv cov dej pa.
Hauv kev xaus lus, NBR/PVC roj hmab ua npuas ncauj rwb thaiv tsev muaj qhov tsis tshua muaj dej noo vim nws cov khoom sib xyaw, cov qauv thiab qhov chaw tiv thaiv. Qhov no ua rau nws yog qhov kev xaiv tsim nyog rau cov ntawv thov uas xav tau kev tiv thaiv cov pa dej. Los ntawm kev nkag siab txog qhov dej noo noo permeability ntawm cov khoom siv rwb thaiv tsev no, cov engineers, cov neeg cog lus thiab cov neeg txiav txim siab tuaj yeem ua qhov kev xaiv paub thaum xaiv cov khoom siv rwb thaiv tsev rau lawv cov haujlwm, kom ntseeg tau tias kev ua haujlwm ntev thiab kev ruaj khov.
Lub sijhawm tshaj tawm: Lub Ob Hlis-21-2024
