Flameproof Vs. Explosion-proof: Dab tsi yog Qhov txawv?
Qhov sib txawv ntawm flameproof thiab explosion-proof enclosures
Raws li koj tuaj yeem pom, qhov sib txawv ntawm ob yog hloov maj mam thaum xub thawj siab ib muag. Yog li ntawd, nws tsis yog qhov xav tsis thoob uas kawm tias cov nplaim hluav taws thiab tawg-pov thawj yog cov ntsiab lus feem ntau siv sib hloov.
Txawm li cas los xij, thaum koj tshawb nrhiav ntxiv, koj yuav pom tias qhov tseem ceeb ntawm qhov sib txawv ntawm ob yog lawv cov ntawv pov thawj. Lo lus "flameproof" siv rau thoob ntiaj teb ntawv pov thawj system (IEC). Lub caij no, "explosion-proof" yog tus qauv North American. Yog li cas qhov kev sib txawv no cuam tshuam li cas rau ob hom kev thaiv? Nyeem ntxiv kom paub.
Qhov txawv #1: Specification raws tu qauv
Ob qho tib si flameproof thiab tawg-pov thawj enclosures ua raws cov txheej txheem sib txawv. Cov tom kawg ua raws li NEC raws tu qauv. Lub caij no, cov khoom siv hluav taws xob tsis zoo, zoo li cov khoom siv hluav taws xob tsis zoo, yog them los ntawm IEC raws tu qauv. Xws li, cov tshuab hluav taws xob siv hluav taws xob tau siv nyob hauv Europe, thaum tawg-pov thawj muaj ntau dua hauv North America.
Qhov txawv #2: Kev ntsuas ntsuas
Muab hais tias ob hom enclosures ua raws li cov txheej txheem sib txawv, nws tsuas yog ntuj uas lawv muaj cov kev ntsuas sib txawv. Cov ntaub ntawv pov thawj pov thawj raug sim los xyuas kom meej tias lawv tuaj yeem tiv taus txog li 4 npaug ntawm cov pa tawg siab. Nyob rau hauv sib piv, flameproof systems feem ntau yog kuaj rau overpressure. Cov cuab yeej raug sim nyob rau hauv cov xwm txheej tsis tshua muaj zog (1.5 npaug ntawm tus qauv siab) thiab tsis tshua muaj mus rau 4 npaug ntawm kev ntsuas siab.
Qhov txawv #3: Cov cim
Cov ntaub ntawv pov thawj tawg yuav tsum ua raws li US cov qauv, uas tsom rau cov chav kawm, kev faib, thiab pab pawg. Txhua qhov cim suav nrog ua haujlwm rau lub hom phiaj. Piv txwv suav nrog kev nthuav qhia T-chav kawm ntawm cov khoom siv thiab yuav ua li cas ignitable roj yuav ua tau. Thaum kawg ntawm qhov cim, muaj ib daim ntawv XP lees paub tias lub thawv yog tawg-pov thawj.
Conversely, flameproof systems yuav tsum ua raws li cov cai ntawm cheeb tsam system ntawv pov thawj. EX daim ntawv lo qhia txog qhov chaw txaus ntshai. Meanwhile, DB marking tsom rau flameproofing. Kuj tseem muaj daim ntawv lo IIC, qhia txog cov pa roj. Thaum kawg, koj muaj chav kawm kub, xws li T1 txog T6.
Qhov txawv # 4: Kev tiv thaiv npog
Flameproof thiab tawg-pov thawj enclosures qhia lwm qhov zoo sib xws. Lawv cov casings yog bolted los yog khov kho nrog threaded npog los yog pob qij txha. Txawm li cas los xij, qhov no yog qhov uas qhov zoo sib xws xaus.
Tsis zoo li cov tshuab hluav taws xob tawg, cov khoom siv hluav taws xob muaj cov khoom siv tshwj xeeb uas xav tau cov cuab yeej tshwj xeeb tshem tawm. Raws li xws li, flameproof enclosures yuav tsum tau drilled nyob rau hauv lub Hoobkas. Lub caij no, cov ntaub ntawv pov thawj tawg tuaj yeem raug laum hauv thaj teb yam tsis muaj teeb meem.
Kev nkag siab txog qhov sib txawv ntawm cov ntaub ntawv pov thawj flameproof thiab explosion-proof enclosures yog qhov tseem ceeb los xyuas kom meej tias koj ua raws li cov cai hauv zos thiab cov lus qhia. Ua tsaug, tam sim no koj nkag siab zoo dua qhov sib txawv, koj yuav pom tias nws yooj yim dua los txheeb xyuas ob lub kaw lus raws li lawv qhov kev ua haujlwm.
Yog tias koj lub lag luam nrhiav cov ntaub ntawv pov thawj flameproof los yog tawg-pov thawj, saib tsis pub dhau BENWEI. Peb muab cov kev xaiv dav dav ntawm cov khoom tsim nyog siv rau txhua qhov chaw muaj kev phom sij. Peb pab neeg yuav zoo siab pab koj xaiv cov cuab yeej tsim nyog rau txoj haujlwm.
Tiv tauj peb hnub no kom paub seb peb tuaj yeem pab koj li cas.
