Ultrasonic Crude Roj Demulsification
Dej- bearing roj crude yog ib qho tshwm sim tshwm sim nyob rau hauv kev loj hlob ntawm cov roj thiab roj teb, thiab dej - bearing crude roj yuav tsum tau dehydrated thiab desalted ua ntej ua. Ultrasonic crude roj demulsification yog ib txoj kev tshiab demulsification uas tuaj yeem daws cov teeb meem zoo li no.
Lub hauv paus ntsiab lus ntawm ultrasonic demulsification
Ultrasound yog ib qho elastic mechanical yoj propagating nyob rau hauv nruab nrab, uas muaj txhua yam kev co, cavitation thiab thermal teebmeem. Theoretical derivation thiab visualization thwmsim ua pov thawj tias lub suab siv ntawm ultrasonic demulsification yuav tsum nyob rau hauv lub cavitation pib. Yog li ntawd, ultrasonic demulsification ntawm cov roj crude tsuas yog siv cov neeg kho tshuab kev co thiab thermal los ntawm ultrasonic tsis.
1. Kev vibration ua rau dej "particles" mus rau agglomerate. Thaum lub ultrasonic nthwv dej dhau los ntawm cov roj av nruab nrab nrog cov dej tshem tawm "particles", nws ua rau cov dej tshem tawm "particles" cuam tshuam nrog cov roj av.
2. Vibrate ua ke. Vim tias cov dej "cov khoom" ntawm ntau qhov sib txawv muaj qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv, cov dej "cov khoom" yuav sib tsoo thiab lo rau ib leeg, uas yuav ua rau muaj qhov ntim thiab loj ntawm cov khoom, thiab thaum kawg txiav txim siab thiab sib cais.
3. Kev vibration tuaj yeem ua rau lub ntuj emulsifiers xws li paraffin, colloid, thiab asphalt nyob rau hauv cov roj crude sib npaug, ua kom lawv solubility, txo cov neeg kho tshuab lub zog ntawm cov roj- dej interface zaj duab xis, thiab pab txhawb lub sedimentation thiab sib cais ntawm lub dej theem. Kev ua cua sov txo qis lub zog ntawm cov roj- dej interface zaj duab xis thiab cov viscosity ntawm cov roj crude.
Ntawm qhov tod tes, ciam teb kev sib txhuam nce qhov kub ntawm cov roj- dej interface, uas yog qhov tsim nyog rau kev tawg ntawm cov yeeb yaj kiab interface.
Ntawm qhov tod tes, cov roj crude absorbs ib co ntawm lub tshav kub zog hloov los ntawm lub suab zog, uas yuav txo tau lub viscosity ntawm crude roj, uas yog conducive rau lub gravitational sedimentation thiab sib cais ntawm cov roj thiab dej ntawm dej "particles".
Yam tseem ceeb cuam tshuam rau ultrasonic demulsification:
1. Muaj ntau yam rau ultrasonic demulsification, xws li suab siv, ultrasonic zaus, hluav taws xob lub sij hawm, qhov kub thiab txias, sij hawm daws teeb meem, roj viscosity, thiab lwm yam.
2. Lub zog thiab nws qhov kev faib tawm yog ib qho tseem ceeb ntawm kev cuam tshuam rau ultrasonic demulsification. Lub suab siv yuav tsum tau tswj hauv qab ntawm qhov pib cavitation. Vim muaj qhov sib txawv loj hauv cov khoom ntawm txhua cov roj crude, qhov zoo tshaj plaws suab siv rau demulsification yog txawv.
3. Qhov loj ntawm lub nthwv dej zaus tsuas yog cuam tshuam qhov kev ncua deb ntawm cov "particles" mus rau cov antinodes los yog cov nodes nyob rau hauv ib tug tej yam ntau yam ntawm magnitude, thiab muaj me ntsis cuam tshuam rau lub demulsification nyhuv nyob rau hauv ib tug tej yam ntau yam ntawm magnitude. Kotyusov theoretically deduces tias qhov zaus muaj feem xyuam rau "particle" agglomeration, thiab deduces tias qhov zoo tshaj plaws zaus rau particle agglomeration nyob rau hauv qhov kev txiav txim ntawm lub suab tsis yog hais txog 21-25 kHz.
4. Emulsification thiab demulsification yog tiag tiag ib tug dynamic equilibrium txheej txheem. Lub demulsification tuaj yeem tawg tau los ntawm kev xaiv lub sijhawm kho kom tsim nyog, tab sis yog tias lub sijhawm kho ultrasonic ntev dhau lawm, cov roj sib cais thiab dej ob -theem emulsification yuav raug emulsified, yog li tsim kom ruaj khov emulsion. Yog li ntawd, lub suab yoj hluav taws xob lub sij hawm tsis yog ntev li ntev tau.
5. Lub zog ntawm demulsification thiab lub cev qhuav dej ntawm cov roj crude yog pom tseeb. Qhov loj feem ntawm cov dej tom qab demulsification ntawm cov roj crude txo nrog qhov nce ntawm qhov kub thiab txias, tab sis qhov txo qis yuav ua rau me me thiab me me nrog qhov kub thiab txias.
