Hluav Taws Extinguishing Mechanism Ntawm Foam Fire Extinguishing

Lub tshuab tua hluav taws tua hluav taws ntawm cov hluav taws tua hluav taws tua hluav taws yog cov pa oxygen cais tawm asphyxiation, radiant heat isolation effect, thiab endothermic cooling effect. Foam fire extinguishing system yog siv los tua hluav taws uas tsis yog dej-soluble combustible kua thiab hluav taws kub. Lub hauv paus ntsiab lus ntawm kev tua hluav taws yog tias cov kua dej ua npuas dej tua hluav taws muaj cov roj ntau (CQ, huab cua) los ntawm kev siv tshuaj lom neeg thiab lub cev, tsim cov npuas me me suav nrog, npog cov nplaim hluav taws kub, cais cov khoom siv hluav taws xob. los ntawm huab cua, thaiv cov hluav taws kub hluav taws xob ntawm cov nplaim hluav taws, yog li tsim kom muaj peev xwm tua hluav taws. Nyob rau tib lub sijhawm, cov npuas dej precipitates cov kua thaum lub sijhawm tua hluav taws, uas tuaj yeem ua kom txias rau cov combustible. Cov dej vapor uas tsim los ntawm cua sov tuaj yeem txo cov pa oxygen nyob ze ntawm cov khoom siv hluav taws xob, thiab tuaj yeem ua kom muaj kev tua hluav taws zoo dua.

Muaj ntau yam kev faib ua npuas dej tua hluav taws: raws li kev teeb tsa thiab siv hom, nws tuaj yeem muab faib ua peb hom: tsau, ib nrab thiab txawb; Raws li kev txhaj tshuaj ua npuas dej, nws tuaj yeem muab faib ua peb hom: kua tshuaj tsuag, kua tshuaj thiab ua npuas dej; Raws li tus npaus foaming piv, nws tuaj yeem muab faib ua peb hom: qis magnification, nruab nrab magnification thiab siab magnification.