Inkcazo kunye noMgaqo weSixhobo soMbane soHlobo lweFlameproof

Ingcaciso:

Izixhobo zombane ezingaqhushumbayo, ibonakaliswa ngophawu “d,” luhlobo lwakudala lwezixhobo zokuthintela uqhushumbo. Kangangamashumi eminyaka, isakhiwo somlilo sibe yinto ephambili yokukhetha ekuphuhliseni nasekusetyenzisweni kwezixhobo zombane ezinokuqhuma. Ezo zixhobo zombane ezingatshiyo zithembekile kukhuseleko lokudubula, babe neteknoloji yokuvelisa evuthiweyo, kwaye ujabulele ubomi benkonzo ende. Zisetyenziswa kakhulu kwiindawo ezinobungozi ezinemixube eyahlukeneyo yerhasi yomoya otshayo. Nangona kunjalo, ngenxa ye ingatshi isakhiwo, ezi zixhobo zinzima kwaye zininzi.

Umgaqo woKhuseleko lokuqhambuka:

Ukhuseleko kunye nokusebenza kobungqina bokuqhuma kolu hlobo lwezixhobo zombane ziqinisekiswa yi-casing eyaziwa ngokuba yi “indawo ebiyelweyo engatshiyo.”

A “indawo ebiyelweyo engatshiyo” ivumela imixube yerhasi yomoya etshayo ukuba ivuthe kwaye gqabhuka ngaphakathi kwesingxobo kodwa ithintela iimveliso ezidubulayo ekugqabhukeni okanye ukubaleka kuzo naziphi na iipaseji ukuya ngaphandle ezinokutshisa imixube ejikelezileyo eqhumayo.. Logama nje umphezulu ophezulu ubushushu ye-enclosure ayigqithisi iklasi yobushushu kwiqela elijoliswe kuyo, isixhobo asiyi kuba ngumthombo wokutshisa kumxube ojikelezileyo werhasi yomoya oqhumayo.

Le yindlela ezisebenza ngayo izixhobo zombane ezingatshiyo.

Ukuqonda lo mgaqo, singafumanisa ukuba i-casing yesixhobo sombane esingatshiyo kufuneka sibe namandla aneleyo okumelana noxinzelelo logqabhuko-dubulo olwenziwa ngaphakathi ngaphandle kokwenza utshintsho olubalulekileyo okanye umonakalo.. Izikhewu phakathi kwamacandelo ovalelo olungatshiyo, eyenza imijelo ukusuka ngaphakathi ukuya ngaphandle, kufuneka ibe nemilinganiselo yomatshini efanelekileyo enokunciphisa okanye ithintele ukubaleka kweemveliso eziqhushumbayo. Le ndlela, ukutshiswa kwe qhuma imixube yerhasi-moya ejikeleze isixhobo iyathintelwa. Amanqanaba okukhusela uqhushumbo lwezixhobo zombane ezingatshiyo ahlelwa ngokwamabakala amathathu: IIA, IIB, kunye ne-IIC. Amanqanaba okhuseleko esixhobo nawo anokwahlulwa ngokwamabakala amathathu: a, b, kunye c, ngokuqhelekileyo imelwe ekusebenzeni njengoko: Izixhobo zeQela I, uMa kunye noMb; Izixhobo zeQela II, Ga, Gb, kunye noGc.

Indawo ebiyelweyo ye izixhobo zombane ezingaqhushumba kufuneka zenziwe kwizinto ezisebenza ngamandla omatshini, njengepleyiti yentsimbi, Jula i-ayini, ingxubevange aluminiyam, ingxubevange yobhedu, yenziwe ngentsimbi eshayinayo, kunye neeplastiki zobunjineli. Amandla kunye nemilinganiselo ye-gap kufuneka ihambelane neemfuno ezifanelekileyo ze-GB3836.2-2010 Explosive Atmospheres Part. 2: Izixhobo ezikhuselweyo ngezivalo ezingatshiyo.