Studies onTransportPimigozi yaPowderEjector ishingiyeDoubleVenturiEbyuzuye

Umuyoboro wa venturi urashobora gukora imirima ya vacuum yo gutwara ibice bitewe ningaruka za venturi. Imikorere yo gutwara ibintu byangiza ifu ishingiye ku ngaruka imwe na kabiri-ya venturi hamwe ningaruka zumwanya wa nozzle kumikorere yubwikorezi byakozweho ubushakashatsi hakoreshejwe uburyo bwo kugerageza no kwigana imibare ishingiye kuburyo bwo guhuza CFD-DEM. Ibisubizo byerekana byerekanaumuvuduko w'umuyagaby'ibice byinjira byiyongera bitewe n'ingaruka ebyiri-venturi, ifitiye akamaro ibice muriinshinge; imbaraga zo gutwara zikoresha ibice byamazi byiyongera, bivuze ko ibice bishobora gutwarwa kure; hafi ya nozzle ni iyo kohereza hanze, nini niniumuvuduko w'umuyagaya inlet ya inlet ni nini nini imbaraga zo guswera zikoresha ibice ni; hafi ya nozzle ni yohereza hanze, ntigabanye umubare wibice muriinshingeni; icyakora, ibice bishobora guhagarikwa mumiyoboro ya venturi niba nozzle yegereye cyane ibyoherezwa hanze. Byongeye kandi, kugirango ugabanye ibice byashizwemo, igisubizo cyiza cyatanzwe hano, aricyo, umwanya wa nozzle kure yo kohereza hanze,y∗ = 30 mm.

Intangiriro

Ikoreshwa rya pneumatike rifite akamaro kanini, nk'imiterere ihindagurika, nta ihumana ry'umukungugu, igiciro gito cyo gukora no kubungabunga byoroshye. Niyo mpamvu, tekinoroji yo gutanga pneumatike ikoreshwa cyane mu bijyanye na peteroli, imiti, metallurgji, imiti, ibiribwa n’inganda zitunganya amabuye y'agaciro. Ifu ya Venturi isohora ni gaze ikomeye ishingiye ku ngaruka za venturi. Ubushakashatsi bumwe nubushakashatsi ku mibare yatewe inshinge za venturi bwakozwe mu myaka icumi ishize kugirango dusobanukirwe nubwikorezi bwabwo.

Umushakashatsiyakoze ubushakashatsi nububare bwindege ya jet ishingiye kuri venturi anasesengura isano iri hagati yibipimo bitandukanye hamwe nuburyo bwo kugerageza no kubara.Umushakashatsi yakoze ubushakashatsi bwikigereranyo kuri gaze yicyiciro kimwe hamwe na gaze-amakara avanze anyura muri venturi, kandi yerekanaga ko igabanuka rikabije ryumuvuduko uhagaze hamwe nigipimo cyo gupakira ibintu byagaragaye muri venturi.Umushakashatsiyakoze ubushakashatsi bwo kubara ku myitwarire yimikorere ya gaze ya gaze ikoresheje uburyo bwa Euleriya, yerekana ko igihe impuzandengo ya axial umuvuduko wa axial yiyongera mbere hanyuma ikagabanuka.Umushakashatsiyakoze iperereza ku myitwarire yibice bibiri bya gaz-ikomeye ya venturi hamwe nuburyo bwo kugerageza no kubara.Umushakashatsiyakoresheje uburyo bwa discret element (DEM) kugirango yige urushinge rukomeye rwa gaze, basanga ibice bikomeye byegeranya mu buryo butandukanye hafi y’agace k’ibumoso bw’ibumoso bw’urushinge bitewe n’uburemere bukomeye hamwe n’ubuzenguruko bwa gaze.

Ubushakashatsi bwavuzwe haruguru bwibanze gusa kuri ejector ifite imiterere imwe ya venturi, aribyo, ingaruka imwe ya venturi yavuzwe muri ejector. Mu rwego rwo gupima gazi itemba, igikoresho gishingiye ku ngaruka ebyiri zikoreshwa cyane mu kongera itandukaniro ryumuvuduko no kunoza neza ibipimo. Nyamara, ejector ifite ingaruka-ebyiri-venturi ntabwo ikoreshwa muburyo bwo gutwara ibice. Ikintu cyubushakashatsi hano ni porojeri ya venturi ishingiye ku ngaruka ebyiri. Gusohora bigizwe nozzle hamwe numuyoboro wose wa venturi. Byombi bya nozzle hamwe numuyoboro wa venturi birashobora kubyara ingaruka za venturi, kandi bivuze ko ingaruka ebyiri-venturi ibaho muri ejector. Umwuka uva mu ndege wihuta uva muri nozzle ya ejector ya venturi, ikora umurima wa vacuum bitewe ningaruka za venturi kandi igahatira uduce twinjira mubyumba byonsa bitewe nuburemere bwikwirakwizwa. Noneho, ibice bigenda hamwe numwuka.

Uburyo bwo Kubara Fluid Dynamics-Discret Element Method (CFD-DEM) uburyo bwo guhuza bwakoreshejwe neza muri sisitemu igoye ya gaz-ikomeye.Umushakashatsiyakoresheje uburyo bwa CFD-DEM kugirango yerekane gazi-ibice bitemba ibyiciro bibiri, icyiciro cya gaze cyafashwe nkikomeza kandi kigereranywa na comptabilite fluid dinamike (CFD), kugendagenda no kugongana byagereranijwe na code ya DEM.Umushakashatsiyakoresheje uburyo bwa CFD-DEM bwo kwigana imyuka ya gaze yuzuye, DEM yakoreshwaga mu kwerekana icyiciro cya granulaire kandi CFD isanzwe ikoreshwa mu kwigana amazi.Umushakashatsiyerekanye CFD-DEM igereranya yigitanda cya gaz-ikomeye kandi itanga icyerekezo gishya cyo gukurura.Umushakashatsiyateguye uburyo bushya bwo kwemeza kwigana igitanda cya gaz-ikomeye itwarwa na CFD-DEM.Umushakashatsiyakoresheje uburyo bwa CFD-DEM bwo kwigana imyuka ya gazi iranga itangazamakuru rya fibrous kugirango yige ingaruka zimiterere ya fibre hamwe nuduce duto duto twinshi hamwe na agglomeration mugikorwa cyo kuyungurura.

Muri iyi nyandiko, uburyo bwo gutwara ibintu byangiza ifu bushingiye ku ngaruka imwe na kabiri-ya venturi hamwe ningaruka zumwanya wa nozzle kumikorere yubwikorezi byakorewe iperereza kuburyo bwubushakashatsi hamwe no kwigana imibare ishingiye kuburyo bwa CFD-DEM.

Umwanzuro

Imikorere yo gutwara ibintu bisohora hashingiwe ku ngaruka imwe na kabiri-ya venturi yakozweho ubushakashatsi hakoreshejwe uburyo bwo kugerageza no kugereranya imibare ishingiye ku buryo bwo guhuza CFD-DEM. Ibisubizo byubu byerekana umuvuduko wumuyaga wibice byinjira byiyongera bitewe ningaruka ebyiri-venturi, ifitiye akamaro uduce duto. Imbaraga zo gutwara ibice byamazi byiyongereye, bigira akamaro kubice byimurirwa kure.