HEPA Filter yog dab tsi

HEPA Filter yog dab tsi

HEPA lim yog qhov ua tau zoo pleated huab cua lim uas muaj peev xwm ntes cov khoom me me mus rau qhov loj me me (µ), lossis micrometer, uas yog 1/1000th ntawm ib lub 'meter'. Lawv yog ib feem ntawm huab cua purification systems txij li thaum lawv nruj me ntsis raws li cov qauv tsim rau kev tshem tawm cov pa phem. Lub anagram HEPA stands rau high efficiency particulate cua, uas yog ib qho kev ua tau zoo tus qauv siv rau huab cua pom cov cuab yeej thiab cov tshuab muaj peev xwm tshem tawm cov feem ntau feeb.

HEPA Lim Ua Haujlwm
Thaum tham txog HEPA cov ntxaij lim dej, nws yog ib qho tseem ceeb kom paub qhov txawv ntawm "Teeb HEPA" cov ntxaij lim dej thiab "HEPA Nyiam," "HEPA Hom," lossis "HEPA Style" lim. Rau lub lim kom raug cais raws li HEPA lim, nws yuav tsum muaj peev xwm tshem tawm 99.97% ntawm cov khoom uas yog qhov loj ntawm 0.3 ntawm micron. Cov qauv no tau tsim los ntawm Lub Chaw Saib Xyuas Kev Tiv Thaiv Ib Cheeb Tsam (EPA), uas siv cov qhab nia tsim los ntawm Teb Chaws Asmeskas cov tub rog rau HEPA lim uas pib nrog "A," zoo tshaj plaws HEPA lim, mus rau "E," zoo tshaj HEPA lim.

Cov txheej txheem pom rau HEPA cov ntxaij lim dej zoo ib yam li lub tshuab lim dej, sieve, lossis lub vev xaib tab sis muaj ntau qhov sib txawv thiab muaj peev xwm ntes tau cov ntaub ntawv feem ntau ntawm cov pa hauv huab cua.

Muaj plaub lub tswv yim rau cov txheej txheem HEPA lim: cuam tshuam, cuam tshuam, nthuav dav, thiab electrostatic attraction. Raws li nrog rau txhua hom kev lim dej, thawj cov ntaub ntawv uas yuav tsum tau muab tshem tawm yog loj thiab yooj yim daig. Los ntawm cov theem thaum ntxov ntawm kev pom thiab nce los ntawm cov ntaub ntawv zoo dua, cov khoom me me thiab cov khoom me me raug kaw, uas tuaj yeem pom hauv daim duab hauv qab no.

Cov txheej txheem HEPA lim lim

Inertial cuam tshuam

Thaum cov khoom uas muaj 1. Cov txheej txheem ntawm inertial impaction captures feem ntau ntawm cov khoom loj thiab cov pa phem xws li paj ntoos.

Cov khoom loj no tuaj yeem saturate lub HEPA lim sai thiab yog vim li cas feem ntau cov tshuab lim dej muaj lub tshuab ua ntej tshem tawm ua ntej huab cua kis mus rau HEPA lim. Txawm hais tias lo lus loj yog hais txog 1.0 μm particles, piv rau tib neeg cov plaub hau lossis nplej ntawm cov xuab zeb, lawv yog cov me me, raws li pom hauv daim duab hauv qab no.

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