Aqueous film-forming foam fire extinguishing agent tuaj yeem tiv thaiv kev sib kis ntawm hluav taws thiab ua tiav lub hom phiaj ntawm kev tua hluav taws. Hauv kev tua hluav taws, txhua tus neeg yuav tsum muaj kev nkag siab txog cov dej ua yeeb yaj kiab ua npuas dej, yog li cia peb qhia nws txoj hauv kev tua hluav taws thiab nws cov lus qhia luv luv hauv kev nthuav dav.
Aqueous film-forming ua npuas ncauj tseem hu ua lub teeb dej ua npuas dej tua hluav taws tua tus neeg sawv cev, luv luv li AFFF hauv lus Askiv. Fluorocarbon surfactants feem ntau yog siv, thiab ua npuas ncauj stabilizers, preservatives, siab molecular polymers, thiab lwm yam. Fluorine-muaj surfactants tuaj yeem txo qhov nro ntawm qhov chaw, thiab muaj kev kub ntxhov thiab tshuaj lom neeg. Thaum siv ua ke nrog hydrocarbon surfactants, lawv qhia tau hais tias muaj kev sib koom ua ke zoo thiab tuaj yeem txo qhov nro ntawm cov tshuaj. , txo cov roj interfacial nro. Qhov sib xyaw ua ke ntawm cov khoom siv hluav taws xob tua hluav taws tua hluav taws thiab dej yog AFFF3 feem pua hom thiab AFFF6 feem pua hom.
Kev tua hluav taws txoj cai
Cov dej ua npuas dej tua hluav taws tua hluav taws yog foamed hauv cov tshuaj aqueous, thiab nws cov dej solubility yog sib dua li dej, yog li nws tuaj yeem ntab rau ntawm cov kua hluav taws kub, yog li nws hu ua "lub teeb dej ua npuas dej tua hluav taws". Environmentally friendly aqueous film-forming foam fire extinguishing agent yog zoo dua li cov protein ua npuas ncauj thiab fluoroprotein ua npuas ncauj hauv cov roj tua hluav taws thiab Class B. Nws lub hauv paus ntsiab lus tua hluav taws, ntxiv rau kev ua haujlwm ntawm cov khoom siv hluav taws xob tua hluav taws tua hluav taws, tseem ua rau cov kua dej txias ua kua dej nyob rau tib lub sijhawm raws li cov nplaim hluav taws kub hnyiab, thiab tsim ib txheej ntawm cov yeeb yaj kiab dej thiab ua npuas dej rau ntawm qhov chaw. cov kua kub hnyiab los sib koom ua ke ntawm cov nplaim hluav taws kub thiab cais cov huab cua. Nws tsim cov rwb thaiv tsev kub, thiab cov kua kub-absorbed evaporates kom dilute cov pa oxygen nyob rau hauv cov huab cua ntawm cov kua kub kub, thiab suffocates cov kua kub, yog li cov kua kub tsis tuaj yeem txuas ntxiv mus. Evaporates thiab hlawv. Qhov sib txawv ntawm nws thiab lwm cov tshuaj tua hluav taws yog qhov "aqueous film-forming" foam fire extinguishing agent muaj dual tua hluav taws los ntawm cov npuas dej thiab cov yeeb yaj kiab dej, uas yog vim li cas rau nws cov hluav taws kub tua hluav taws thiab lub sijhawm luv luv.
