1. Iyini i-UV?

Okokuqala, ake sibuyekeze umqondo we-UV. I-UV, okungukuthi i-ultraviolet, okungukuthi i-ultraviolet, iyigagasi kagesi elinobude obuphakathi kuka-10 nm no-400 nm. I-UV emabhendi ahlukene ingahlukaniswa nge-UVA, UVB ne-UVC.

I-UVA: enobude obude obusuka ku-320-400nm, ingangena emafwini nasezingilazini ekamelweni nasemotweni, ingene kudermis yesikhumba futhi ibangele ukushuka. I-UVA ingahlukaniswa ibe yi-uva-2 (320-340nm) kanye ne-UVA-1 (340-400nm).

I-UVB: i-wavelength iphakathi nendawo, futhi ubude begagasi buphakathi kuka-280-320nm. Iyomuncwa ungqimba lwe-ozone, ibangele ukushiswa yilanga, isikhumba sibe bomvu, ukuvuvukala, ukushisa nobuhlungu, kanye namabhamuza noma axebuke ezimweni ezimbi kakhulu.

I-UVC: ubude begagasi buphakathi kuka-100-280nm, kodwa ubude begagasi obungaphansi kuka-200nm yi-vacuum ultraviolet, ngakho-ke ingamuncwa umoya. Ngakho-ke, ubude begagasi lapho i-UVC ingawela khona umkhathi buphakathi kuka-200-280nm. Lapho ubude bayo begagasi buba bufushane, buyingozi kakhulu. Nokho, ingavinjwa ungqimba lwe-ozone, futhi inani elincane kuphela elizofinyelela ebusweni bomhlaba.

2. Isimiso sokuvalwa kwe-UV?

I-UV ingabhubhisa i-DNA (deoxyribonucleic acid) noma i-RNA (ribonucleic acid) isakhiwo samangqamuzana amagciwane, ukuze amagciwane afe noma angakwazi ukuzala, ukuze kufezwe injongo yokuvala inzalo.

3. Ibhendi yokuvala inzalo ye-UV?

Ngokwe-International ultraviolet Association, “i-ultraviolet spectrum (indawo 'yokwenza inzalo') ebaluleke kakhulu ekubulaleni amagciwane emanzini nasemoyeni iwuhlu olumuncwa i-DNA (i-RNA kwamanye amagciwane). Le bhendi yokuvala inzalo icishe ibe ngu-200-300 nm”. Kuyaziwa ukuthi ubude bokuvala inzalo budlulela ngaphezu kuka-280nm, futhi manje sekubhekwa njengokujwayelekile ukuthi bufinyelele ku-300nm. Nokho, lokhu kungase futhi kushintshe ngocwaningo olwengeziwe. Ososayensi bakufakazele ukuthi ukukhanya kwe-ultraviolet okunamaza aphakathi kuka-280nm no-300nm nakho kungasetshenziselwa ukuvala inzalo.

4. Yibuphi ubude begagasi obufaneleka kakhulu bokuvala inzalo?

Kukhona ukungaqondi kahle ukuthi i-254 nm iwubude obungcono kakhulu bokuvala inzalo, ngoba ubude be-wavelength be-low-pressure mercury lamp (enqunywa kuphela i-physics yesibani) ngu-253.7 nm. Empeleni, njengoba kuchazwe ngenhla, uhla oluthile lwamaza amaza lunomphumela we-bactericidal. Kodwa-ke, ngokuvamile kubhekwa ukuthi ubude begagasi obungu-265nm bungcono kakhulu, ngoba lobu bude begagasi buyisiqongo sejika le-DNA lokumunca. Ngakho-ke, i-UVC iyibhande elifaneleka kakhulu lokuvala inzalo.

5. Kungani umlando ukhethe i-UVCI-LED?

Ngokomlando, ilambu le-mercury laliwukuphela kwenketho yokuvala inzalo ye-UV. Nokho, i-miniaturization yeI-UVC LEDizingxenye ziletha umcabango owengeziwe endaweni yesicelo, eziningi zazo ezingenakufezeka ngamalambu endabuko e-mercury. Ngaphezu kwalokho, i-UVC eholayo nayo inezinzuzo eziningi, njengokuqalisa ngokushesha, izikhathi zokushintsha ezivunyelwe, ukunikezwa kwamandla ebhethri atholakalayo nokunye.

6. Isimo sohlelo lokusebenza lwe-UVC LED?

Ukuvala inzalo ebusweni: izindawo ezivame kakhulu ukuthintana nomphakathi ezifana nemishini yezokwelapha, izinsiza zikamama nezinsana, indlu yangasese ehlakaniphile, isiqandisi, ikhabethe lezinto zetafula, ibhokisi lokugcina izinto ezintsha, umgqomo kadoti ohlakaniphile, inkomishi ye-thermos, i-escalator handrail kanye nenkinobho yomshini wokuthengisa amathikithi;

Ukuvala inzalo yamanzi: ithangi lamanzi lesikhiphi samanzi, i-humidifier kanye nomenzi weqhwa;

Ukuvala inzalo yamanzi agelezayo: imojula yokuvala inzalo yamanzi agelezayo, umshini wokukhipha amanzi okuphuza oqondile;

Ukuvala inzalo komoya: isihlanzi somoya, i-air conditioner.

7. Ungakhetha kanjani i-UVC LED?

Ingakhethwa kumapharamitha anjengamandla okubona, ubude begagasi eliphakeme, impilo yesevisi, i-engeli yokuphuma nokunye.

Amandla okubona: amandla okukhanya we-UVC LED atholakala emakethe yamanje asukela ku-2MW, 10 MW kuya ku-100 MW. Izinhlelo zokusebenza ezahlukene zinezidingo ezahlukene zamandla. Ngokuvamile, amandla okubona angafaniswa ngokuhlanganisa ibanga lokushiswa kwemisebe, isidingo esiguqukayo noma isidingo esimile. Lapho ibanga lokushiswa kwemisebe likhulu, isidingo sinamandla, namandla okukhanya adingekayo.

Ubude begagasi obuphakeme: njengoba kushiwo ngenhla, i-265nm iwubude obungcono kakhulu bokuvala inzalo, kodwa uma kucatshangelwa ukuthi kunomehluko omncane enanini eliphakeme le-wavelength ephezulu phakathi kwabakhiqizi, empeleni, amandla okubona inkomba ebaluleke kakhulu yokukala ukusebenza kahle kokuvala inzalo.

Impilo yesevisi: cabangela isidingo sempilo yesevisi ngokwesikhathi sesevisi sezinhlelo zokusebenza ezithile, futhi uthole i-UVC eholwa kahle kakhulu, ehamba phambili.

I-engeli ephumayo yokukhanya: i-engeli ephumayo yokukhanya yobuhlalu besibani embozwe ngelensi yendiza imvamisa iphakathi kuka-120-140 °, futhi i-engeli yokuphuma kokukhanya embozwe ilensi eyindilinga iyalungiseka phakathi kuka-60-140 °. Eqinisweni, kungakhathaliseki ukuthi i-engeli yokuphumayo ye-UVC LED inkulu kangakanani, ama-LED anele angaklanywa ukuthi amboze ngokugcwele isikhala esidingekayo sokuvala inzalo. Esigcawini asizweli kububanzi bokuvala inzalo, i-engeli encane yokukhanya ingenza ukukhanya kugxile kakhulu, ngakho isikhathi sokuvala inzalo sibe sifushane.