Taw qhia rau lub hauv paus ntsiab lus ntawm ultrasonic atomization

Nruab daim ntawv piezoelectric ceramic (feem ntau hu ua ultrasonic atomizing sheet) nyob rau hauv qab ntawm lub thawv dej, thiab lub tshuab hluav taws xob tswj hluav taws xob tsim hluav taws xob tsav tsheb uas zoo ib yam nrog cov resonant zaus ntawm daim ntawv atomizing thiab siv rau daim ntawv atomizing, thiab daim ntawv atomizing yuav tsim lub zog oscillation. Lub zog oscillating propagates nyob rau hauv cov dej raws cov kev taw qhia perpendicular mus rau saum npoo ntawm daim ntawv atomizing. Nyob rau hauv cov ntaub ntawv ntawm ib tug haum dej qhov tob, cov dej nto ntawm lub zog propagation axis concentrates ib tug dej kem, thiab ib tug loj tus naj npawb ntawm me me nro nthwv dej yog concentrated nyob rau hauv pem hauv ntej kawg ntawm cov dej kem, uas ua rau cov dej ntog. Qhov nro ntawm cov dej tau txo qis heev, thiab cov dej saum npoo av tau muab faib ua ntau qhov me me los ntawm lub wavelength ntawm qhov nro nthwv dej. txoj cai.

Ultrasonic atomization yog txheej txheem ntawm kev siv lub zog ultrasonic los tsim cov tee dej zoo.

Muaj ob txoj hauv kev uas ultrasonics tuaj yeem atomize kua:

1. Cov txheej nyias nyias ntawm lub vibrating nto excites ib capillary - lub ntiajteb txawj nqus yoj nyob rau hauv ultrasonic kev co.

2. Txoj kev atomization yog tias cov ciav dej ultrasonic ua pos huab.

method ib

Muaj ob qhov kev piav qhia theoretical rau lub hauv paus ntsiab lus. Lawv yog qhov kev xav ntawm micro shock yoj txoj kev xav thiab qhov kev xav ntawm qhov nro nthwv dej, feem.

Ntawm qhov tod tes, micro - shock theory piav qhia tias cov nyhuv cavitation ntawm ultrasonic tsis nyob rau hauv cov kua nruab nrab ua rau lub cim ntawm micro - shock waves thiab yog li qhov tshwm sim ntawm atomization. Qhov kev xav no ntseeg hais tias cov nyhuv cavitation yog qhov ncaj qha ua rau lub atomization ntawm cov kua. Thaum lub cavitation npuas vau, ntxiv rau kev tsim hluav taws xob thiab lub teeb hluav taws xob, tus so yog radiated nyob rau hauv daim ntawv ntawm micro shock yoj. Thaum lub micro shock nthwv dej ncav cuag ib qho kev siv, nws yuav ua rau cov kua Atomization Thaum lub micro shock nthwv dej nce mus txog ib qho kev siv, nws ua rau cov kua atomization.

Ntawm qhov tod tes, qhov kev xav ntawm qhov nro ntseeg tau hais tias tiam ntawm cov tee dej yog vim qhov tsis ruaj khov ntawm cov kua dej ntws, uas ua rau cov kua atomize. Nyob rau hauv qhov kev txiav txim ntawm lub zog perpendicular mus rau saum npoo nro nthwv dej, thaum lub amplitude ntawm lub vibrating nto mus txog ib tug tej yam nqi, lub droplet yuav ya tawm ntawm lub yoj crest los tsim atomization. Qhov kev tshawb xav no tuav tau tias qhov nro nthwv dej ua rau cov tee dej ntawm nws lub crest, nws qhov loj me yog proportional rau wavelength.

Txoj kev 2

Fountain atomization, uas yog ib hom ntawv, siv piezoelectric wafers ua transducers los tsim ultrasonic tsis nyob rau hauv lub megahertz ntau. Feem ntau, cov txheej txheem tsim ntawm cov ciav atomization yog raws li hauv qab no. Thaum lub ultrasonic zaus ntawm lub ultrasonic transducer yog megahertz, lub directivity ntawm lub ultrasonic yoj thiab nws cov cavitation teb yog zoo heev, yog li ntawd cov tshuaj nyob rau hauv kev sib cuag nrog nws yuav tsum sprayed los ua ib tug"ultrasonic ciav" .

Ib tug loj tus naj npawb ntawm aerosols yog tsim nyob rau tib lub sij hawm raws li lub ultrasonic ciav yog tsim. Ntawm lawv, lub"ultrasonic ciav" tuaj yeem suav tau tias yog qhov chaw siab tshaj plaws ntawm ultrasonic cavitation teb, uas muaj lub zog hluav taws xob unidirectional thiab lub suab sib luag sib luag. Hauv daim teb cavitation no, kev faib tawm ntawm cov npuas cavitation sib txawv heev. Thaum cov kua xws li dej yog cavitated, vim cov nyhuv ntawm acoustic hluav taws xob siab, vim qhov ceev ntawm cavitation npuas, vim lub cev muaj zog ntawm ultrasonic radiation quab yuam thiab pawg dav hlau, cov concentrated thermal nyhuv thiab mechanical nyhuv ntawm ib tug loj tus naj npawb ntawm cov khoom. cavitation npuas yog qhov tseem ceeb nyob rau pem hauv ntej ntawm tus ciav. , lub suab zog ceev kuj zoo heev nyob rau hauv lub dav hlau kev taw qhia vim lub ultrasonic dawb dav hlau thiab pawg dav hlau.

Nyob rau hauv lub ultrasonic ciav, lub cev qhuav dej ntawm ib tug loj tus naj npawb ntawm cavitation npuas, lub siab - kub acoustic dav hlau thiab lub siab - siab shock yoj thaum tawg yog lub ntsiab mechanisms ntawm lub ultrasonic ciav. Thiab lwm yam kev sib xyaw ua ke, cov teebmeem thermal, thiab lwm yam kuj muaj nyob rau tib lub sijhawm. Ultrasonic humidifiers tsim siv lub hauv paus ntsiab lus no feem ntau yog siv los ua cov khoom siv hauv tsev. Nws tuaj yeem humidify cov chav computer thiab cov ntaub so ntswg spinning rhiav kom tshem tawm hluav taws xob zoo li qub los ntawm cov khoom siv; ntxiv cov tshuaj rau kev ua kom tsis muaj menyuam hauv tsev thiab tshuaj tua kab mob, ua kom lub ntsej muag zoo nkauj, thiab zoo li bonsai.