Skaratu a kanTfansaPropert naPodarEjector bisaDubleVcikiEffect

Mai fitar da venturi zai iya samar da filayen sarari don jigilar barbashi saboda tasirin venturi. Ayyukan sufuri na masu fitar da foda dangane da tasiri guda ɗaya da sau biyu-venturi da tasirin matsayi na nozzle akan aikin sufuri an binciko su ta hanyar gwajin gwaji da ƙididdiga na ƙididdiga bisa hanyar haɗin gwiwar CFD-DEM. Sakamakon yanzu yana nunagudun iskana barbashi shigar da ƙara saboda biyu-venturi sakamako, wanda yake da amfani ga barbashi a cikinallura; Ƙarfin da ke motsa ɓangarorin ta hanyar ruwa yana ƙaruwa, ma'ana ana iya jigilar kwayoyin zuwa nesa mai nisa; mafi kusancin bututun ƙarfe zuwa fitarwa, mafi girma dagudun iskana barbashi mashiga ne kuma mafi girma da tsotsa karfi exerting a kan barbashi ne; mafi kusancin bututun ƙarfe shine zuwa fitarwa, ƙarancin adadin adadin barbashi a cikinallurashine; duk da haka, za a iya hana barbashi cikin bututun venturi idan bututun ƙarfe yana kusa da fitarwa. Bugu da ƙari, don rage ƙaddamar da barbashi, an gabatar da mafi kyawun bayani a nan, wato, matsayi na bututun ƙarfe daga fitarwa,y∗ = 30 mm.

Gabatarwa

Fasahar isar da huhu tana da fa'idodi da yawa, kamar sassauƙan shimfidar wuri, babu gurɓataccen ƙura, ƙarancin aiki da kulawa mai sauƙi. Don haka, ana amfani da fasahar isar da huhu sosai ga masana'antar man fetur, sinadarai, ƙarfe, magunguna, masana'antar sarrafa abinci da ma'adinai. Venturi foda ejector shine gas mai ƙarfi wanda ya dogara da tasirin venturi. An gudanar da wasu nazarce-nazarcen gwaji da lambobi a kan allurar venturi a cikin shekaru goma da suka gabata don fahimtar halayen jigilar sa.

Mai bincikegudanar da gwaje-gwaje na gwaji da ƙididdiga na jet tube bisa ga venturi da kuma nazarin dangantaka tsakanin sigogi daban-daban tare da hanyoyin gwaji da ƙididdiga.Mai bincike an gudanar da jerin gwaje-gwaje na gwaji don duka gas guda ɗaya da cakuda gas-gas da ke gudana ta cikin venturi, kuma ya nuna cewa raguwa mai kaifi a cikin matsa lamba mai mahimmanci kuma an lura da rabon ɗaukar nauyi a cikin venturi.Mai bincikesun gudanar da nazarin lissafi akan halayen kwarara don injector mai ƙarfi ta hanyar tsarin Eulerian, yana nuna cewa matsakaicin matsakaicin ƙwayar axial yana ƙaruwa da farko sannan ya ragu.Mai bincikebincika halaye na venturi mai ƙarfi mai ƙarfi mai kashi biyu tare da hanyoyin gwaji da ƙididdiga.Mai bincikesun yi amfani da hanya mai hankali (DEM) don nazarin injector mai ƙarfi na iskar gas, kuma sun gano cewa ƙaƙƙarfan barbashi suna taruwa sosai a kusa da kasan yankin hagu na allurar saboda ƙaƙƙarfan nauyi da kuma kewayen iskar gas.

Abubuwan da ke sama sun mayar da hankali ne kawai akan mai fitarwa tare da tsarin venturi guda ɗaya, wato, tasirin venturi guda ɗaya da aka ambata a cikin fitarwa. A cikin ma'aunin ma'aunin iskar gas, na'urar da ta dogara da tasirin sau biyu ana amfani da ita sosai don ƙara bambancin matsa lamba da inganta ma'auni. Koyaya, ejector tare da tasirin venturi biyu ba sau da yawa ana amfani da shi don jigilar jigilar kayayyaki. Abun bincike a nan shi ne venturi foda ejector dangane da tasiri biyu-venturi. Mai fitarwa ya ƙunshi bututun ƙarfe da bututun venturi gabaɗaya. Dukan bututun bututun ƙarfe da bututun venturi na iya haifar da tasirin venturi, kuma yana nufin cewa tasirin venturi biyu ya wanzu a cikin mai fitar da shi. Gudun iska tare da manyan jiragen sama masu sauri daga bututun mai na venturi ejector, wanda ke samar da filin sararin samaniya saboda tasirin venturi kuma ƙwayoyin da ke tilastawa su shiga cikin ɗakin tsotsa a ƙarƙashin rinjayar nauyi da haɓakawa. Sa'an nan, barbashi suna motsawa tare da iska.

An yi nasarar yin amfani da hanyar haɗakarwa ta Fluid Dynamics-Discrete Element Method (CFD-DEM) a cikin hadadden tsarin kwararar iskar gas.Mai bincikeAn karɓi hanyar CFD-DEM don yin ƙirar iskar gas-barbashi guda biyu kwarara, ana kula da lokacin gas ɗin azaman ci gaba kuma an tsara shi tare da haɓakar ruwa mai ƙididdigewa (CFD), motsi na barbashi da karo da aka kwaikwaya tare da lambar DEM.Mai bincikeAn karɓi tsarin CFD-DEM don kwaikwayi magudanar iskar gas mai ƙarfi, an yi amfani da DEM don yin ƙira da ƙirar ɓangarorin granular kuma ana amfani da CFD na gargajiya don daidaita kwararar ruwa.Mai bincikean gabatar da kwaikwaiyon CFD-DEM na gado mai ƙarfi mai ƙarfi na gas kuma ya ba da shawarar sabon ƙirar ja.Mai bincikeɓullo da wata sabuwar hanya don tabbatar da simintin gado mai ƙarfi mai ƙarfi ta hanyar CFD-DEM.Mai bincikeya yi amfani da hanyar haɗin CFD-DEM don yin kwatankwacin halayen haɓakar iskar gas mai ƙarfi a cikin kafofin watsa labarai na fibrous don nazarin tasirin tsarin fiber da kaddarorin ɓangarorin akan ƙaddamar da ɓarna da haɓakawa a cikin tsarin tacewa.

A cikin wannan takarda, kayan sufuri na masu fitar da foda dangane da tasiri guda ɗaya da biyu-venturi da tasiri na matsayi na nozzle akan aikin sufuri an binciko su ta hanyar gwajin gwaji da ƙididdiga na ƙididdiga bisa hanyar haɗin gwiwar CFD-DEM.

Ƙarshe

Ayyukan sufuri na ejectors dangane da tasiri guda ɗaya da biyu-venturi an bincika bi da bi ta hanyar gwaji da ƙirar ƙididdiga bisa hanyar haɗin gwiwar CFD-DEM. Sakamakon yanzu yana nuna saurin iskar mashigan barbashi yana ƙaruwa saboda tasirin venturi sau biyu, wanda ke da amfani ga barbashi a cikin injector. Ƙarfin tuƙi don ƙwayoyin da ruwa ya ƙaru, wanda ke da amfani ga barbashi don canjawa wuri mai nisa.