Shenhai Explosion-Ubungqina
Masiqale ngokucacisa ukulinganiswa kobungqina bokudubula obahlukeneyo, oko bakuthethayo, kunye nendlela yokuzikhetha xa usebenza, usebenzisa iibhokisi zokusasaza ezinobungqina bokudubula njengomzekelo.
| Iqela legesi/iqela lobushushu | T1 | T2 | T3 | T4 | T5 | T6 |
|---|---|---|---|---|---|---|
| IIA | I-formaldehyde, itoluene, imethyl ester, iacetylene, propane, iacetone, iasidi ye-acrylic, benzene, isitayile, icarbon monoxide, i-ethyl acetate, iacetic acid, iklorobenzene, i-methyl acetate, iklorine | IMethanol, i-ethanol, ethylbenzene, ipropanol, ipropylene, ibutanol, butyl acetate, i-amyl acetate, i-cyclopentane | IPentane, ipentanol, hexane, i-ethanol, iheptane, iokteni, cyclohexanol, iturpentine, naphtha, i-petroleum (kuquka nepetroli), amafutha amafutha, pentanol tetrachloride | IAcetaldehyde, trimethylamine | I-Ethyl nitrite | |
| IIB | Ipropylene ester, idimethyl ether | Butadiene, epoxy propane, ethylene | Idimethyl ether, acrolein, i-hydrogen carbide | |||
| IIC | Ihydrogen, igesi yamanzi | Iacetylene | Ikhabhoni disulfide | I-ethyl nitrate |
Ukumakishwa kwesatifikethi:
Ex d IIB T4 Gb/Ex tD A21 IP65 T130°C sisiqinisekiso sehlabathi lonke sokhuseleko lwerhasi nothuli., apho inxenye phambi kweslash (/) ibonisa inqanaba lokungaqhubi kwerhasi, kunye nenxalenye emva kwe-slash ibonisa uthuli-ubungqina bokudubula.
Eks: Ukumakishwa kobungqina bokudubula, ifomathi esemgangathweni ye-IEC (IKhomishini yezoMbane yeHlabathi) izilinganiso ezinobungqina bokudubula.
d: Ingatshi uhlobo, ebonisa olona hlobo luphambili lokhuseleko logqabhuko-dubulo lukhusela amadangatye.
IIB: Imele uKhuseleko logqabhuko-dubulo lwerhasi yodidi B.
T4: Ibonisa i ubushushu iklasi.
Gb: Ibonisa ukuba le mveliso ifanelekile kwiZone 1 ukhuseleko lokudubula.
Ukwenzela i ukudubula kothuli inxalenye kwisiqingatha sokugqibela, kwanele ukufezekisa inqanaba eliphezulu lokukhusela uthuli 6 ngokusekelwe kwimigangatho yobungqina bokuqhuma kwegesi.
tD: Imele uhlobo lokhuselo lwendawo ebiyelweyo (ukuthintela ukuvutha kothuli ngesivalo).
A21: Ibonisa indawo esebenzayo, ilungele uMmandla 21, Zowuni 22.
IP65: Imele ibakala lokhuseleko.
Kubalulekile ukukhetha umgangatho ochanekileyo wobungqina bokudubula kwindawo yokwenyani.
Ekuqaleni, kubalulekile ukuqonda iindidi ezimbini eziphambili, njengoko kuchaziwe ngezantsi:
Iintlobo ezinobungqina bokudubula:
Iklasi I: Izixhobo zombane kwimigodi yamalahle ephantsi komhlaba;
Udidi II: Izixhobo zombane kuzo zonke ezinye qhuma indawo zegesi ngaphandle kwemigodi yamalahle nangaphantsi komhlaba.
Udidi II lunokwahlulwa lube yi-IIA, IIB, kunye ne-IIC, apho izixhobo eziphawulwe IIB zingasetyenziswa phantsi kweemeko ezifanelekileyo izixhobo IIA; I-IIC ingasetyenziswa phantsi kweemeko ezifanelekileyo kuzo zombini i-IIA kunye ne-IIB.
Udidi III: Izixhobo zombane kwindawo ezinothuli oluqhushumbayo ngaphandle kwemigodi yamalahle.
IIIA: Iindiza ezinokutsha; IIIB: Uthuli olungaqhubekiyo; I-IIC: Uthuli oluqhubayo.
Iindawo ezingaqhushumbayo:
Zowuni 0: Apho iigesi eziqhumayo zihlala zikhona okanye zihlala zikhona; yingozi rhoqo ngaphezu 1000 iiyure/unyaka;
Zowuni 1: Apho ezinokutsha Iigesi zinokuthi zenzeke ngexesha lokusebenza kwesiqhelo; eziyingozi ngamaxesha athile 10 ukuya 1000 iiyure/unyaka;
Zowuni 2: Apho iigesi ezinokutsha azikho ngokuqhelekileyo kwaye, ukuba ziyenzeka, kungenzeka ukuba azenzeki kwaye zibe zezexesha elifutshane; ekhoyo ngokuyingozi 0.1 ukuya 10 iiyure/unyaka.
Kubalulekile ukuqaphela ukuba sijongana neKlasi II kunye ne-III, Zowuni 1, Zowuni 2; Zowuni 21, Zowuni 22.
Ngokuqhelekileyo, ukufikelela kwi-IIB kwanele kwiigesi, kodwa ngenxa ihydrogen, iacetylene, kunye ne-carbon disulfide, umgangatho ophezulu we-IIC uyafuneka. Ukukhusela ukuqhuma kothuli, ukufezekisa nje igesi ehambelanayo inqanaba lobungqina bokudubula kunye nenqanaba eliphezulu lothuli.
Kukho kwakhona uhlobo oludibeneyo ibhokisi yokuhambisa ubungqina bokudubula ukukala: ExdeIIBT4Gb.