Umqobo wokhuseleko wokwahlulwa kwelangabi kunye nomsi
Intshayelelo
Ukhuseleko lomlilo kunye nokuthintela kubaluleke kakhulu nakweyiphi na indawo. Zibaluleke kakhulu kwiindawo ezinobungozi ezisengozini yomlilo nokuqhuma. Kwimeko enjalo, Ukhuseleko lwangaphakathi Izixhobo zokubona umlilo kunye nemiqobo yokhuseleko yangaphakathi ziluncedo kakhulu. Ezi nkqubo zikhethekileyo zenzelwe ukuthintela imililo kunye nokuqhuma. Zifezekisa oku ngokunciphisa amandla ombane kunye nobushushu kwinkqubo yokubona.
Amanqaku angundoqo:
nIzixhobo zokubona umlilo ezikhuselekileyo ngaphakathi zibalulekile kwiindawo ezinobungozi ezineegesi eziqhumayo okanye izinto ezitshayo.
nOlu hlobo lwezixhobo ezikhethekileyo lususa ngokusisiseko iingozi ezinokubakho zokutsha ngokunciphisa ngokungqongqo imveliso yamandla okufudumeza ngombane.
nKwimimandla enobungozi obukhulu efana neekhemikhali zepetrochemicals, imveliso yamayeza, kunye nokugcinwa kwezinto ezinobungozi, obu buchwephesha abunakutshintshwa.
nUkuqonda iimpawu kunye neemeko ezifanelekileyo zeentlobo ezahlukeneyo zeenzwa zokhuseleko lwangaphakathi yinto ebalulekileyo ekwakheni inkqubo echanekileyo yokuthintela umlilo.
nUkusebenza kokhuseleko kunye nokuzinza kokusebenza kwezixhobo zokuhlola eziqinisekiswe yimibutho yamazwe ngamazwe efana ne I-Atex ziqinisekisiwe ngokusemthethweni.
Isebenza njani into yokubona ukhuseleko lomlilo ngaphakathi?
nKwiindawo ezinokutsha neziqhumayo ezifana neoyile negesi, iikhemikhali, kunye nokulungiswa kweenkozo, izixhobo zokubona umlilo zemveli zibeka iingozi zokhuseleko ngenxa yokuba kunokwenzeka ukuba zivelise iintlantsi zombane okanye ubushushu obuphezulu, ngelixa izixhobo zokubona ukhuseleko lwangaphakathi (IS) ziqinisekisa ukusebenza ngokukhuselekileyo kwiindawo ezinobungozi ngoyilo olukhethekileyo.
nUbuchwepheshe bayo obuphambili bukwindlela yokunciphisa amandla: ngokulawula ngokuchanekileyo amandla akhoyo kunye nobushushu kwisekethe, kuqinisekisa ukuba izixhobo aziyi kuvelisa iintlantsi zokutsha okanye amaqondo obushushu aphezulu ayingozi phantsi kwayo nayiphi na imeko yokusebenza. Ukufezekisa le njongo, inkqubo kufuneka ixhotyiswe ngomqobo wokhuseleko - into ebalulekileyo efakwe phakathi komlawuli we-alamu kunye nezixhobo ze-IS, ezinokuthintela ngempumelelo ukuhanjiswa kwamandla agqithisileyo kwaye zigcine amandla esekethe engaphantsi komda wokhuseleko ngamaxesha onke.
nOlu yilo lokhuseleko oluphindwe kabini (umlinganiselo wamandla angaphakathi + umqobo wokhuseleko lwangaphandle) lwenza i-IS detector ibe sisisombululo sokujonga umlilo esithembekileyo kwiindawo ezinobungozi obukhulu, ngelixa ihlangabezana nemigangatho yamazwe ngamazwe yokumelana nokuqhuma njenge-ATEX.
Ukuthobela kunye nemigangatho yezixhobo zokubona umlilo zokhuseleko lwangaphakathi e-UK
E-UK, kukho imithetho engqongqo yokusebenzisa izixhobo zokhuseleko lomlilo kwiindawo ezinobungozi. Ukuthobela le mithetho akupheleli nje ekubeni yimfuneko esemthethweni, kodwa kubalulekile nasekuqinisekiseni ukhuseleko lwabasebenzi kunye nokusebenza kakuhle.
Imithetho ephambili yile Imigaqo ye-AtexLe mithetho ithathwe kwimiyalelo ye-EU ejolise ekuququzeleleni imigangatho yokhuseleko lwezixhobo ezisetyenziswa kwiindawo apho kunokubakho ukuqhuma khona.
Imigaqo ye-ATEX ibalulekile kuye nabani na ovelisa, athengisa, okanye asebenzisa izixhobo zokhuseleko kwiindawo apho kunokubakho ukuqhuma khona. Kwiindawo ezinobungozi ngaphakathi kwi-European Union (kuquka ne-UK), zonke izixhobo kunye neenkqubo zokukhusela kufuneka zithobele imigaqo ye-ATEX.
Umgangatho | Inkcazo |
Umyalelo we-ATEX 2014/34/EU | Oku kuquka izixhobo kunye neenkqubo zokukhusela ezisetyenziswa kwiindawo apho kunokubakho ukuqhuma khona. |
I-IEC 60079 | Iseti yemithetho yamazwe ngamazwe malunga nendlela yokuyila, ukufaka, kunye nokusebenzisa izixhobo zombane ngokukhuselekileyo kwiindawo eziqhumayo. |
Ukuqonda nokuthobela le mithetho kubalulekile. Oku kunceda ukuqinisekisa ukhuseleko xa usebenzisa izixhobo zokubona umlilo zokhuseleko lwangaphakathi kwiindawo ezinobungozi.
Khetha imiqobo yokhuseleko efanelekileyo ngaphakathi
Thina, eBeijing Pinghe, njengababoneleli beemiqobo ezisemgangathweni ophezulu, sinesicwangciso sophuhliso esijolise ekunciphiseni ubukhulu beemiqobo, sizenze zibe lula kwaye zibe lula ukuzisebenzisa, senze kube lula ukufakelwa, sinciphise umngcipheko wokungaphumeleli, kwaye sinikezele ngemiqobo efanelekileyo ngokupheleleyo kwiinkqubo zenkqubo.
I-PHD-11TN-11 kunye ne-PHD-22TN-1111 zethu zenzelwe ngokukodwa ukusetyenziswa nezixhobo zokubhaqa umsi.
Igalelo lesiginali sezixhobo zokubona ilangatye nomsi zizithintelo zokhuseleko ezizimeleyo, ezinokubonelela ngamandla okwahlulahlula kwiindawo ezinobungozi. Izixhobo zokubona ilangatye zivelisa imiqondiso ye-0-40mA ehlukanisiweyo kwiindawo ezinobungozi kwaye idluliselwe kwiindawo ezikhuselekileyo, idlala indima kwisilumkiso somsi. Le mveliso inikwe amandla yisekethe yokuphuma kwaye ifanelekile kwiinkqubo ze-DCS/PLC ezisebenza ngeluphu.
Le mveliso ayifuni umbane ozimeleyo, kwaye ii-terminals zokufaka kunye nezokukhupha zodwa.
