Ib tug luv luv keeb kwm thiab kev loj hlob ntawmventurkuv abrasive nozzles

Luv keeb kwm ntawmSandblastingthiabAbrasive Nozzles 

Cov txheej txheem ntawm sandblasting pib nyob ib ncig ntawm 1870 nrog ib tug txiv neej npe hu ua Benjamin Chew Tilghman, uas tau pom abrasive hnav ntawm cua tshuab cua suab puam qhov rais. Tilghman kuj pom cov txiaj ntsig uas cov xuab zeb siab tshaj plaws tuaj yeem muaj ntawm cov khoom siv tawv. Ces nwspib tsim lub tshuab uas tuaj yeem txav cov xuab zeb ntawm qhov nrawm nrawm dua li cua - thiab tuaj yeem mloog zoo rau qhov ntws mus rau hauv cov kwj me me. Lub nozzle mounted rau ntawm lub platform txav, qhotuaj yeem siv los coj lub nozzle hla lub substrate.

Koj tuaj yeem pom cov qauv yooj yim ntawm sandblasting tshuab los ntawm daim duab hauv qab no.

Pressurized cua tau muab los ntawm lub nozzle. Lub blast nozzlemuabsxuab zeb qhov nrawm xav tau rau kev tsim khoom blasting. Qhov no yog thawj lub tshuab sandblasting, thiab thawj zaug sivlub nozzleyog hu ua ncaj bore nozzle.

UNyob rau hauv nruab nrab xyoo 1950, tag nrho cov sandblasting nozzles tau ncaj bore. Lawv muaj ib tug tapered converging nkag, ib tug parallel caj pas seem, thiab tag nrho-ntev ncaj bore thiab ncaj tawm. Sij hawm dhau los, cov neeg ua haujlwm tawg tau pom tias thaum lub hauv paus ntawm cov nozzles tau pib hnav thiab tawg, qhov loj dua thiab ua tau zoo dua qhov tawg qauv tshwm sim. Qhov kev soj ntsuam no tau ua rau kev txhim kho ntawm venturi tsim.

Yugthiab kev loj hlobntawm Venturi Nozzle

Txawm hais tias Venturi nozzle tsis tshwm sim hauv sandblasting kom txog rau thaum xyoo 1950, cov nyhuv Venturi nyob rau hauv lub neej ntev ua ntej. Lub hauv paus kev tshawb fawb rau kev tsim venturi pib nrog kev ua haujlwm ntawm Swiss lej thiab tus kws kho mob lub cev Daniel Bernoulli, uas tau tshawb pom tias qhov txo qis ntawm cov kua dej ua rau muaj kev nce hauv cov dej nrawm. Nws luam tawm qhov kev tshawb pom no hauv nws phau ntawvHydrodynamicaXyoo 1738, thiab nws tau los ua lub npe hu ua Bernoulli's Principle.

Tom qab xyoo 1700, txoj haujlwm no tau ntxiv nrog rau kev tshawb fawb ntxiv los ntawm Italian physicist Giovanni Battista Venturi. Venturi tau txais txiaj ntsig nrog qhov kev tshawb pom ntawm qhov txo qis hauv cov kua siab uas tshwm sim thaum cov dej ntws los ntawm ib qho kev txwv ntawm cov yeeb nkab. Qhov no tau los ua lub npe hu ua Venturi Effect. 

CovTsimntawm Venturi Nozzles

Cov venturi nozzle yog tsim in ib tug ntev tapered converging nkag, nrog ib tug luv luv ca ncaj seem, ua raws li los ntawm ib tug ntev diverging kawg uas widens thaum koj mus txog qhov kawg ntawm lub nozzle.

Venturi nozzles tuaj yeem ua kom cov khoom tsim tau ntau npaum li 70% vim qhov loj abrasive qauv uas tau tshwm sim nrog rau vim qhov nce ntawm qhov nrawm ntawm cov abrasive thaum nws tawm ntawm lub nozzle. Qhov tseeb,tusKev tshaj tawm (qhov hluav taws xob ceev) ntawm kev tawm abrasive tuaj yeem yog ze li ob npaug ntawm lub taub hau ncaj, thiab qhov no yogtusquab yuam uas ntxuav qhov chaw sai dua.

Ob chav Venturi Blast Nozzles yog hom tshwj xeebventurkuv nozzle.

Covob venturistyle (zoo li daim duab) tuaj yeem xav tias yog ob lub nozzles hauv koob nrog qhov sib txawv thiab qhov nyob nruab nrab kom tso cai rau kev tso cua ntawm huab cua mus rau hauv ntu ntu ntawm lub nozzle. Qhov kawg ntawm kev tawm kuj yog dav duatus qauvkev lag luam tawgnozzle. Ob qho kev hloov kho yog tsim los ua kom qhov loj me ntawm cov qauv tawg thiab txo qhov poob ntawm qhov nrawm nrawm.

BSTEC muaj cov qauv zooventurinozzles thiab obventuri cev,so Yog tias koj nyob hauv kev ua lag luam tab tom nrhiav txhim kho koj txoj haujlwm,koj tuaj yeem tiv tauj peb kom paub meej ntxiv.