Pressure Swing Adsorption inoshanda sei?
Paunenge uchigadzira yako nitrogen, zvakakosha kuti uzive uye unzwisise mwero wekuchena waunoda kuwana.Zvimwe zvikumbiro zvinoda kucheneswa kwakaderera (pakati pe90 ne99%), sekukwira kwemateyi uye kudzivirira moto, nepo zvimwe, senge mashandisirwo muindasitiri yezvekudya nechinwiwa kana kuumbwa kwepurasitiki, zvinoda mazinga akakwira (kubva pa97 kusvika 99.999%).Muzviitiko izvi PSA tekinoroji ndiyo yakanaka uye iri nyore nzira yekuenda.
Muchidimbu jenareta renitrogen rinoshanda nekuparadzanisa mamorekuru enitrogen kubva kumamorekuru eokisijeni mukati memhepo yakamanikidzwa.Pressure Swing Adsorption inoita izvi nekuteya mweya weokisijeni kubva kumhepo yakadzvanywa uchishandisa adsorption.Adsorption inoitika apo mamorekuru anozvisunga kune adsorbent, mune iyi mamorekuru eokisijeni anonamatira kune kabhoni molecular sieve (CMS).Izvi zvinoitika mumidziyo miviri yakapatsanurwa yekumanikidza, imwe neimwe yakazadzwa neCMS, inoshandura pakati penzira yekuparadzanisa uye maitiro ekuzvarwa patsva.Parizvino, ngativadaidze shongwe A uye shongwe B.
Kutanga, mhepo yakachena uye yakaoma yakamanikidzwa inopinda mushongwe A uye sezvo mamorekuru eokisijeni ari madiki pane mamorekuru enitrogen, anozopinda mumapores ecarbon sieve.Mamorekuru eNitrogen kune rumwe rutivi haakwanise kupinda mumapores saka anodarika kabhoni molecular sieve.Nekuda kweizvozvo, iwe unopedzisira uine nitrogen yekuchena kwaunoda.Ichi chikamu chinonzi adsorption kana separation phase.
Hazvigumiri ipapo zvakadaro.Yakawanda yenitrogen inogadzirwa mushongwe A inobuda muhurongwa (yakagadzirira kushandiswa zvakananga kana kuchengetwa), nepo chikamu chidiki chenitrogen inogadzirwa ichipeperetswa mushongwe B iri mhiri (kubva kumusoro kusvika pasi).Kuyerera uku kunodiwa kusundira kunze kweokisijeni yakabatwa muchikamu chekare chekushambadza cheshongwe B. Nekuburitsa kumanikidza mushongwe B, iyo carbon molecular sieves inorasikirwa nekukwanisa kubata maokisijeni mamorekuru.Ivo vanozobvisa kubva kune masefa uye vanotakurwa kuburikidza nekubuda nekuyerera kwe nitrogen kudiki kunobva pashongwe A. Nekuita izvozvo iyo system inoita nzvimbo yekuti mamorekuru matsva eokisijeni abatanidze kune masefa mune inotevera adsorption chikamu.Isu tinodaidza nzira iyi 'yekuchenesa' shongwe yakazadzwa neokisijeni.
Kutanga, tangi A iri muchikamu chekushambadza apo tangi B inovandudza.Muchikamu chechipiri midziyo yose inofananidzira kumanikidzwa kugadzirira kushandura.Mushure mekuchinja, tangi A inotanga kusimba apo tangi B ichiburitsa nitrogen.
Panguva ino, kudzvanywa mune ese ari maviri shongwe anozoenzana uye ivo vanozochinja nhanho kubva mukushambadza kuenda kukugadzira patsva uye zvinopesana.Iyo CMS mushongwe A ichazara, nepo shongwe B, nekuda kwekuora mwoyo, ichakwanisa kutangazve adsorption maitiro.Iyi nzira inonziwo 'swing of pressure' , zvinoreva kuti inobvumira mamwe magasi kuti atorerwe pakakwirira uye asunungurwe pane yakaderera.Iyo mbiri shongwe yePSA sisitimu inobvumira kuenderera mberi kugadzirwa kwenitrogen padanho rinodiwa rekuchena.
Nguva yekutumira: Nov-25-2021