1.HEPA lim tshuab
HEPA (High efficiency particulate air filter), uas yog, kev ua haujlwm siab huab cua lim, HEPA yog tus cwj pwm los ntawm huab cua tuaj yeem hla, tab sis cov khoom zoo tsis tuaj yeem hla. Nws cov txheej txheem siab tshaj plaws tuaj yeem txo qhov ntom ntom rau 1 lab npaug ntawm huab cua hauv tsev.
Daim duab 1 Txoj Cai ntawm HEPA huab cua purification
Qib ntawm lub lim yog nyob ntawm qhov loj ntawm cov lim particle loj ntawm lub lim txheej thiab kev ua kom pom tseeb. Qee lub sij hawm tseem ceeb yuav tsum tau ua kom pom cov txheej txheem siab tshaj plaws, xws li chav kho mob, cov chaw tsim khoom semiconductor, thiab lwm yam. Tab sis rau feem ntau scenes, cov lim dej nruab nrab thiab qib siab tuaj yeem coj mus rau hauv tus account qhov sib npaug ntawm kev cuam tshuam kev ua haujlwm thiab huab cua ntws. Tom qab kev tshawb nrhiav, peb tau xaiv HEPA13 qib lim dej (cov qib lim suav nrog qib lim: H11-H14, U15, U16 (EN1822)) los ntxuav cov huab cua hauv kev siv pej xeem.
2. Dab tsi yog qhov cuam tshuam ntawm ultraviolet rays ntawm cov kab mob thiab cov kab mob?
Lub hnub ci muaj lub teeb sib txawv ntawm cov wavelengths, xws li infrared (kub) mus rau pom lub teeb rau ultraviolet (sunburn). Cov kev tshawb fawb sim tau ntev pom tias cov kab hluav taws xob ultraviolet tuaj yeem ua kom cov kab mob kis tau zoo. Tshwj xeeb, cov kab hluav taws xob ultraviolet tau muab faib ua peb qhov, thiab qhov qis dua lub wavelength, lub zog siab dua. UV-A tuaj yeem ua rau tawv nqaij tawv, thiab dhau sijhawm, nws yuav ua kom tawv nqaij puas thiab laus. Ultraviolet-B tuaj yeem ua rau lub hnub ci, tab sis nws tseem tsim nyog rau cov tib neeg hluavtaws los tsim cov vitamin D. Ultraviolet-C yog lub zog siab tshaj plaws ultraviolet band, uas yog lim tawm los ntawm cov txheej txheem ozone nyob rau hauv qhov chaw. Yog tias tsis muaj ozone txheej, peb yuav tsum nyob hauv tsev. Nws muaj kev phom sij rau txhua lub neej uas raug rau ultraviolet-C band.
Lub ultraviolet-C band tuaj yeem ua puas DNA thiab RNA ntawm qib molecular. Cov nyhuv yog qhov tseem ceeb tshaj plaws ntawm ultraviolet wavelengths nyob ib ncig ntawm 250nm. Yog li ntawd, lub ultraviolet-C band tuaj yeem siv los tiv thaiv tus kab mob los tua lossis tiv thaiv tus kab mob los ntawm kev rov ua dua thiab tiv thaiv kev kis tus kab mob.
Daim duab 2 Ultraviolet rays hloov cov qauv ntawm DNA / RNA (Source: NASA)
Thaum mercury vapor zoo siab los ntawm cov hluav taws xob tam sim no, nws tawm 253.7nm ultraviolet lub teeb. Qhov no tau siv rau lub teeb fluorescent tau ntev. Qhov emission no yuav ua rau cov phosphor txheej nyob rau hauv lub teeb bar rau fluoresce, yog li converting ultraviolet rays mus rau hauv lub teeb pom kev, uas yuav siv tau rau teeb pom kev zoo. UV-absorbing txheej tuaj yeem tiv thaiv tsis muaj hluav taws xob tawg. Mercury-based UV-C teeb siv tib lub hauv paus ntsiab lus, tab sis tsis yog phosphors, lawv siv cov iav uas tsis yog UV-absorbing, uas tso cai rau UV-C tso tawm. Ib qho tsis zoo ntawm mercury teeb yog tias lawv kuj tawm ntawm 185nm, uas yuav tsim ozone, daim ntawv tri-molecular ntawm oxygen. Txawm hais tias nws tiv thaiv peb los ntawm ultraviolet rays ntawm qhov siab thiab ua raws li cov tshuaj tua kab mob hauv qee qhov kev siv, ozone kuj yog ua pa ua pa thiab ua paug. Yog li ntawd, feem ntau UV-C qhov muag teev tau kho kom nqus 185nm emission. Ultraviolet rays kuj tseem tuaj yeem tsim los ntawm lub teeb-emitting diodes (LEDs), thiab lawv cov kev ua tau zoo thiab lub neej tau txhim kho tas li.
Post lub sij hawm: May-18-2021
