Foam concentrate yog ib qho tseem ceeb ntawm kev tua hluav taws uas pab tswj thiab tua hluav taws. Nws yog tsim los ntawm kev sib xyaw ntawm cov dej thiab ua npuas ncauj concentrate, uas thaum aerated, tsim ib daim pam ruaj khov uas npog qhov hluav taws kub thiab tiv thaiv cov pa oxygen los ntawm cov nplaim taws. Muaj ntau ntau hom ua npuas ncauj concentrates siv niaj hnub no, txhua tus muaj cov khoom tshwj xeeb uas ua rau lawv zoo tagnrho rau cov ntawv thov tshwj xeeb.
1. Aqueous Film-Forming Foam (AFFF)
AFFF yog cov khoom siv dav siv ntau tshaj plaws hauv kev lag luam tua hluav taws. Nws yog tsim los tua hluav taws hydrocarbon, xws li roj av, diesel, thiab lwm yam khoom siv roj av. AFFF kuj tseem muaj txiaj ntsig zoo hauv kev tswj cov hluav taws kub hluav taws kub hauv chav kawm B thiab muaj txiaj ntsig zoo hauv kev tua cov vapors.
2. Alcohol-Resistant Aqueous Film-Forming Foam (AR-AFFF)
AR-AFFF tshwj xeeb yog tsim los tua hluav taws uas muaj cawv, xws li ethanol thiab methanol. Nws muab kev tiv thaiv kev tiv thaiv ntawm cov roj thiab huab cua, tiv thaiv vapor ignition thiab txo qhov kev pheej hmoo ntawm kev rov ua dua. AR-AFFF yog tshwj xeeb tshaj yog pab tau nyob rau hauv kev lag luam aviation li aviation roj paub tias muaj cawv.
3. Protein Foam Concentrate
Protein foam concentrate yog tsim los ntawm cov khoom muaj protein ntau, xws li cov kua txiv hmab txiv ntoo los yog tsiaj txhu. Nws muaj txiaj ntsig zoo hauv kev tua hluav taws uas suav nrog Class A combustibles, xws li ntoo, ntawv, thiab textiles. Protein foam muaj cov khoom ntub dej zoo heev, tso cai rau nws nkag mus tob rau hauv cov ntaub ntawv ntxeem tau thiab muab kev tua hluav taws ntev ntev.
4. High-Expansion Foam Concentrate
High-expansion ua npuas ncauj concentrate ua cov ntim loj ntawm cov npuas dej uas nthuav mus txog 1000 npaug ntawm nws cov ntim qub, sau cov chaw loj sai sai. Nws yog siv rau hauv qhov chaw kaw, xws li hauv qab daus, lub tank cia, thiab hauv cov chaw kaw nkoj nkoj. High-expansion ua npuas ncauj muaj cov ntsiab lus dej tsawg, txo cov dej puas tsuaj rau cov qauv.
Hauv kev xaus, ua npuas ncauj concentrates yog qhov tseem ceeb ntawm kev tua hluav taws uas pab tswj thiab tua hluav taws. Qhov sib txawv ntawm cov npuas dej concentrate yog tsim los siv rau cov kev siv tshwj xeeb, ua rau lawv muaj txiaj ntsig zoo hauv kev tswj hluav taws. AFFF, AR-AFFF, protein foam concentrate, thiab high-expansion foam concentrate, yog txhua yam tshwj xeeb hauv lawv cov khoom thiab yuav tsum tau siv raws li cov neeg tsim khoom pom zoo. Cov neeg tua hluav taws thiab cov neeg teb thawj zaug yuav tsum tau kawm txog kev siv cov npuas dej kom zoo los txhim kho kev tua hluav taws thiab cawm neeg txoj sia.
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