Hom Hluav Taws Xob Ua Npuas Ncauj Ua Li Cas Muaj?

Foam yog ib qho tseem ceeb hauv kev tua hluav taws. Ua npuas ncauj yog siv los tua hluav taws los ntawm smothering nws thiab tiv thaiv kev nkag mus rau oxygen tsim nyog rau qhov hluav taws kub. Muaj ntau hom ua npuas ncauj, txhua tus nrog nws cov khoom tshwj xeeb thiab cov yam ntxwv uas ua rau nws haum rau cov hom hluav taws kub. Kab lus no yuav tham txog yam tseem ceeb ntawm kev tua hluav taws ua npuas ncauj muaj.

1. Class A ua npuas ncauj:

Class A ua npuas ncauj yog siv rau ntoo, ntawv, ntaub, thiab lwm yam ntaub ntawv organic. Hom ua npuas dej no nyiam nkag mus rau Class A cov ntaub ntawv sai sai, tso cai rau dej kom ncav cuag qhov hluav taws kub tob tob. Nws kuj tseem txhim kho cov ntub dej thiab saturation ntawm Class A cov ntaub ntawv los ntawm kev txo qhov nro ntawm cov dej, cia nws nkag mus zoo dua. Class A ua npuas ncauj kuj tseem siv tau rau hauv hav zoov hluav taws, vim nws muab cov khoom ntub dej thiab hluav taws kub. Class A ua npuas ncauj feem ntau yog siv rau hauv ib qho 0.1 mus rau 1% tov.

2. Class B ua npuas ncauj:

Chav B ua npuas ncauj yog siv rau cov hluav taws kub uas muaj cov nplaim taws thiab cov kua dej tsis haum, xws li roj av, roj av, roj av, thiab ntau yam cawv. Cov npuas dej no tsim ib daim pam ruaj khov rau saum cov kua dej, tiv thaiv evaporation thiab ignition tom qab. Chav B ua npuas ncauj kuj tseem siv tau los ua vapor-suppressant, tiv thaiv hluav taws lossis tawg los ntawm kev nthuav tawm. Nws yog feem ntau siv nyob rau hauv ib tug 3% mus rau 6% tov.

3. Class D ua npuas ncauj:

Class D ua npuas ncauj yog siv rau hluav taws kub uas muaj hlau, xws li magnesium, titanium, thiab sodium. Nws tsim ib lub pob zeb hla cov hlau thiab tiv thaiv cov pa oxygen los ntawm cov hlau kub. Cov npuas dej no kuj ua rau cov hlau txias thiab tiv thaiv kom tsis txhob muaj hluav taws kub. Class D ua npuas ncauj feem ntau yog siv nyob rau hauv ib tug 1% mus rau 3% tov.

Xaus:

Kev tua hluav taws ua npuas ncauj yog ib qho tseem ceeb hauv kev tua hluav taws. Muaj ntau hom ua npuas ncauj muaj, txhua tus muaj cov khoom tshwj xeeb thiab cov yam ntxwv uas ua rau nws haum rau cov hom hluav taws kub. Class A ua npuas ncauj yog siv rau cov ntaub ntawv organic xws li ntawv thiab ntoo, Class B ua npuas ncauj yog siv rau cov kua flammable, thiab Class D ua npuas ncauj yog siv rau hlau. Kev xaiv zoo ntawm hom ua npuas ncauj yog qhov tseem ceeb kom ntseeg tau tias qhov hluav taws kub tua tau zoo thiab ua tau zoo.