I-Venturi Nozzle yeMipu yoMoya

Umbhobho we-venturi wemipu yomoya ubandakanya ityhubhu emide, emile okwesilinda enendawo ephuma emlonyeni evalekileyo emoyeni efumana isiphelo apho umoya ucinezelweyo ugqithwa kwisiphelo sokukhutshelwa. Ummandla wokuhamba komoya wokuphela kokukhutshwa kombhobho mkhulu kunommandla wokuhamba komoya we-orifice ukuvumela ukwandiswa komoya ophuma kwi-orifice kummandla wokukhutshwa kokuphela kombhobho okufutshane ne-orifice. Imingxuma eyenziwe ngetyhubhu ekuphumeni kwayo ekupheleni kwayo ekufuphi ne-orifice ivumela umoya we-ambient ukuba utsalwe yi-venturi effect kwi-tube kwaye ukhutshwe ngomoya owandisiweyo ophuma ekupheleni kombhobho. Kufunyaniswe ukuba xa imingxuma ibekwe malunga nesangqa setyhubhu kwiindawo ezingachaswanga, kwaye inobude ecaleni kwe-axis yombhobho omkhulu kunobubanzi bemibhobho ejikeleze umjikelezo wombhobho, umthamo we imveliso yomoya ukusuka ekupheleni kokukhutshwa kombhobho inyuselwa umthamo onikiweyo wokungenisa umoya ocinezelweyo ukuya ekupheleni kokufumana umlomo. Ngaphaya koko, kuye kwafunyaniswa ukuba xa iziphelo zemingxuma ngobude bazo zithe chatha kwi-engile ebukhali ngokunxulumene ne-axis yetyhubhu ukuya kwisiphelo sokufumana kwayo, umthamo wemveliso yomoya ukusuka ekupheleni kokukhutshwa kombhobho. inyuswe ngakumbi kwaye ingxolo eyenziwa ngumoya odlula kumbhobho iyancitshiswa.

1. Intsimi

Ipaseji inxulumene nemilomo yemipu yomoya, kwaye ngokukodwa kumlomo we-venturi wompu womoya owandisa umthamo womoya okhutshwa kumlomo womthamo onikiweyo wegalelo lomoya ocinezelweyo apho, kwaye onciphisa ingxolo eyenziwa ngumlomo phezu kwawo. ukuhamba komoya apho.

2. Inkcazo yoBugcisa obuPhambili

Ekwenzeni nasekugcinweni kwezixhobo ezahlukeneyo, imipu yomoya ihlala isetyenziselwa ukuvuthela uthuli kunye nolunye udoti oluvela kwisixhobo. Imipu yomoya idla ngokusebenza ngoxinzelelo lomoya olungaphezulu kwama-40 psi. Nangona kunjalo, ngenxa yomgangatho omnye obhengezwe phantsi koMthetho woKhuseleko kunye neMpilo eMsebenzini (OSHA), olona xinzelelo luphezulu olwenziwe kwincam yokukhupha umlomo wompu womoya xa umlomo ufile, njengokubekwa ngokuchasene nesandla somsebenzi okanye iflethi. umphezulu, kufuneka ube ngaphantsi kwe-30 psi.

Umbhobho owaziwayo wokunciphisa ingxaki yokufa koxinzelelo olugqityiweyo lokwakha uquka umbhobho othintelweyo phakathi kombhobho osembindini wombhobho apho umoya ocinezelweyo uphumela kwisiphelo sokukhupha somlomo., kunye nobuninzi bemingxuma ejikelezayo eyenziwe ngombhobho ekuphumeni kwayo ekupheleni kwayo. Xa isiphelo sokukhupha somlomo sifile siphelile, umoya ocinezelweyo apho udlula kwimingxuma esetyhula, okanye imingxuma yokuphuma, ukunqanda ukwakhiwa koxinzelelo ngaphakathi kwesiphelo sokukhupha somlomo.

Ngaphezu koko, kwiimeko ezininzi, iicompressors ezifumanekayo zokubonelela umoya oxinanisiweyo kwimipu zilinganiselwe kumthamo, okukhokelela ekungakwazini ukubonelela umoya ngokuqhubekayo kuwo nawuphi na umpu womoya omnye, okanye ukungakwazi ukusebenzisa ngaxeshanye imipu yomoya emininzi. Ngelixa imilomo ye-venturi yangaphambili isebenze ukunyusa umthamo womoya okhutshiweyo kumngxuma wokukhupha we-nozzle yomthamo onikiweyo wegalelo lomoya ocinezelekileyo ukuya kumbhobho wompu womoya, ukonyuka okufunyenweyo akukhange kube kubukhulu obaneleyo ukuvumela okwanelisayo nokusebenza kakuhle. ukusetyenziswa komthamo onyiniweyo wokucinezela. Kunqweneleka, ke ngoko, ukuba uyilo lomlomo ophumayo ube njengokwandisa umthamo womoya okhutshwayo kuwo kumthamo onikiweyo wokungenisa umoya ocinezelweyo apho.

USHWANKATHELO

Ngokuhambelana nokuveliswa kwangoku, umbhobho wokukhupha ulwelo lwe-venturi ubandakanya ityhubhu emide, emile okwesilinda enendawo ephumayo ethintelweyo eyenziwe kufutshane nolwelo olufumana isiphelo apho ulwelo lwegesi olucinezelweyo lugqithiselwa kwisiphelo solwelo oluphumayo. Ummandla wokuhamba kwamanzi okuphela kokukhutshwa kombhobho mkhulu kunommandla we-fluid flow of the orifice ukuvumela ukwandiswa kwamanzi agqithwe kwi-orifice kummandla wokukhutshwa kokuphela kombhobho okufutshane ne-orifice, kunye nobuninzi be-nondiametrically. imingxuma emide echasiweyo (o.k.t., ubuninzi bemingxuma nganye enobude ecaleni kweasi yombhobho omkhulu kunobubanzi bendawo yokuvula ecaleni kwesangqa sombhobho) yenziwa ngombhobho ngobude bayo ukusuka kwindawo ekufuphi i-orifice ethintelweyo ukuya kwindawo ekuphumeni kuyo ukuphela kombhobho ukuze kuvumeleke ulwelo lwerhasi ekufutshane nomphandle wombhobho ukuba lutsalwe yi-venturi effect ngokuvula umbhobho kwaye lukhutshwe ngolwelo olwandisiweyo oluphuma ekupheleni kombhobho.

Ngokukhethwayo, imibhobho emithathu emide yenziwe ngombhobho okwi-120° yonyuso ejikeleze iperiphery yetyhubhu eneneni iyityhubhu ye-venturi echazwa yiperi yangaphakathi ecolisiweyo imiphezulu enemiphetho emincinci edityaniswe ngumphezulu omfutshane wecylindrical okanye umqala we-venturi. . Imingxuma emide ibekwe kufutshane nesiphelo sokukhutshelwa komqala we-venturi kwaye idlulele kwindawo ecolekileyo kwicala lokukhupha lomqala. Zomibini iindawo zokugqibela zifakwe kwicala elifanayo ngokubanzi ukuze zinwebe ukusuka kumphezulu wangaphakathi wombhobho umva ukuya ekupheleni kokufumana ityhubhu.

Umbhobho wokukhupha wolu sungulo ufanelekile ngokukodwa ukusetyenziswa kwinkqubo yokukhupha igesi enomthombo womthamo olinganiselweyo, umzekelo, i-compressor yomoya ephathekayo, ngenxa yokuba umlomo wombhobho wonyusa kakhulu umthamo wokukhutshwa komoya kumthamo onikiweyo we igalelo lomoya ocinezelweyo kumlomo onxulumene nemilomo yangaphambili enemingxuma esetyhula apho.