Kev Taw Qhia luv luv ntawm Venturi Bore Nozzle

Nyob rau hauv tsab xov xwm kawg, peb tau tham txog qhov ncaj bore nozzle. Hauv tsab xov xwm no, Venturi bore nozzles yuav qhia.

Keeb kwm

Txhawm rau saib los ntawm keeb kwm ntawm Venturi bore nozzle, txhua yam pib hauv 1728. Xyoo no, Swiss tus lej thiab tus kws kho lub cev Daniel Bernoulli luam tawm ib phau ntawv hu uaHydrodynamic. Hauv phau ntawv no, nws tau piav qhia txog qhov kev tshawb pom tias qhov txo qis ntawm cov kua dej yuav ua rau muaj kev nce hauv cov kua dej, uas yog hu ua Bernoulli's Principle. Raws li Bernoulli Txoj Cai, tib neeg tau ua ntau yam kev sim. Tsis txog thaum xyoo 1700s, tus kws kho mob Italian Giovanni Battista Venturi tau tsim Venturi Effect --- thaum cov kua dej ntws los ntawm ib qho kev txwv ntawm cov yeeb nkab, lub siab ntawm cov kua dej yuav txo qis. Tom qab Venturi bore nozzles tau tsim raws li qhov kev xav no hauv xyoo 1950. Tom qab ob peb xyoos siv, tib neeg txuas ntxiv hloov kho Venturi bore nozzle kom haum rau txoj kev loj hlob ntawm kev lag luam. Niaj hnub no, Venturi bore nozzles tau siv dav hauv kev lag luam niaj hnub.

Qauv

Lub Venturi bore nozzle tau ua ke nrog qhov kawg convergent, seem ncaj nraim, thiab qhov sib txawv kawg. Cov cua generated ntws mus rau lub convergent ntawm ib tug high speed ua ntej thiab ces dhau los ntawm lub luv luv ncaj seem. Qhov sib txawv ntawm cov bore nozzles ncaj nraim, Venturi bore nozzles muaj qhov sib txawv, uas tuaj yeem pab txo qis.vertexua haujlwm kom cov cua tshuab tuaj yeem tso tawm ntawm qhov nrawm dua. Qhov siab tshaj plaws tuaj yeem ua rau kev ua haujlwm siab dua thiab cov khoom siv tsis zoo. Venturi bore nozzles yog qhov zoo tshaj plaws rau kev tsim khoom ntau dua thaum lub sij hawm blasting vim tias lawv cov khoom tawg yooj yim thiab nrawm nrawm. Venturi bore nozzles kuj tuaj yeem tsim cov khoom sib txawv ntau dua, yog li lawv tsim nyog rau kev tawg qhov loj dua.

Qhov zoo thiab qhov tsis zoo

Raws li peb tau tham txog ua ntej, Venturi bore nozzles tuaj yeem txo qhovvertexmuaj nuj nqi. Yog li ntawd, lawv yuav muaj qhov nrawm dua ntawm cov kua cua thiab tuaj yeem haus cov khoom siv tsis zoo. Thiab lawv yuav muaj cov khoom tsim tau ntau dua, uas yog kwv yees li 40% siab dua qhov ncaj bore nozzle.

Daim ntawv thov

Venturi bore nozzles feem ntau muab cov khoom tsim tau ntau dua thaum tawg qhov loj dua. Vim lawv cov khoom tsim tau ntau dua, lawv tuaj yeem paub txog kev tawg ntawm qhov chaw uas nyuaj rau kev tsim khoom.

Yog tias koj xav paub ntau ntxiv txog abrasive blasting, txais tos hu rau peb kom paub ntau ntxiv.