Mbiri yayifupi komanso kukula kwa venturi abrasive nozzles

Mbiri yayifupi komanso kukula kwa venturi abrasive nozzles

2022-01-11Share

Mbiri yochepa ndi chitukuko chaulendondi abrasive nozzles


Mbiri Yachidule yaKuphulika kwa mchengandiNozzles Abrasive 

Ntchito yophulitsa mchenga idayamba cha m'ma 1870 ndi bambo wina dzina lake Benjamin Chew Tilghman, yemwe adawona kuwonongeka kwa mazenera am'chipululu owulutsidwa ndi mphepo. Tilghman adawonanso momwe mchenga wothamanga kwambiri ukhoza kukhala nawo pazinthu zolimba. Ndiye iyeanayamba kupanga makina omwe amatha kuyendetsa mchenga pa liwiro lachangu kuposa mphepo - ndipo amatha kuyika motere mumtsinje wawung'ono. Mphuno yoyikidwa pa nsanja yosuntha, ameneangagwiritsidwe ntchito kutsogolera nozzle kudutsa gawo lapansi.

Mutha kuwona mawonekedwe osavuta a makina a sandblasting pachithunzichi.

 A short history and development of venturi abrasive nozzles

Mpweya wopanikizika unaperekedwa kudzera mumphuno. Mphuno yophulikakuperekasmchenga liwiro lofunika kuti muphulike bwino. Ichi chinali choyamba makina sandblasting, ndi ntchito yoyambamphunoamatchedwa mphuno yowongoka.

Umpaka pakati pa zaka za m'ma 1950, milomo yonse yophulitsa mchenga inali yobowoka. Anali ndi malo ozungulira ozungulira, gawo lofanana la mmero, ndi lodzaza-utali wowongoka wowongoka ndikutuluka molunjika. M'kupita kwa nthawi, oyendetsa mabomba adawona kuti mkati mwa mphunozi inayamba kutha ndi kutha, kuphulika kwakukulu komanso kothandiza kwambiri kunayambitsa. Kuwona uku kunapangitsa kuti mapangidwe a venturi apangidwe.

Kubadwandi Chitukukowa Venturi Nozzle

Ngakhale phokoso la Venturi silinawonekere mu mchenga mpaka 1950s, zotsatira za Venturi zinalipo kale. Maziko a sayansi a mapangidwe a venturi anayamba ndi ntchito ya katswiri wa masamu ndi fizikiki wa ku Switzerland Daniel Bernoulli, yemwe adapeza kuti kuchepetsa kuthamanga kwa madzi kumapangitsa kuti madzi ayambe kuthamanga. Iye adafalitsa zomwe adatulukira m'buku lakeHydrodynamicamu 1738, ndipo idadziwika kuti Bernoulli's Principle.

A short history and development of venturi abrasive nozzles

Pambuyo pake m'zaka za m'ma 1700, ntchitoyi inawonjezeredwa ndi chiphunzitso chowonjezera cha katswiri wa sayansi ya ku Italy Giovanni Battista Venturi. Venturi akuyamikiridwa ndi kutulukira kwa kuchepetsa kuthamanga kwa madzimadzi komwe kumachitika pamene madzi akuyenda mu gawo lophwanyika la chitoliro. Izi zinadziwika kuti Venturi Effect. 


TheKupangawa Venturi Nozzles

Ndi vEnuri nozzle idapangidwa in njira yayitali yolumikizirana, yokhala ndi gawo lalifupi lathyathyathya lowongoka, lotsatiridwa ndi mathero atali opatukana omwe amakula mukafika kumapeto kwa mphuno.

A short history and development of venturi abrasive nozzles

Miphuno ya Venturi imatha kuchulukitsa zokolola ndi 70% chifukwa cha mawonekedwe okulirapo a abrasive omwe amatuluka komanso chifukwa cha kuchuluka kwa liwiro la abrasive akamatuluka pamphuno. Pamenepo,ndiliwiro (liwiro lotuluka) la chotupitsa chotuluka chikhoza kukhala pafupifupi kuwirikiza ka mphuno yowongoka, ndipo izi ndindimphamvu yomwe imayeretsa pamwamba mwachangu.

Ma Nozzles Awiri a Venturi Blast ndi mtundu wapaderaulendondi noz.

Thekawiri venturikalembedwe (monga chojambula) akhoza kuganiziridwa ngati mphuno ziwiri zotsatizana zokhala ndi mpata ndi mabowo pakati kuti alole kulowetsa mpweya wa mumlengalenga mu gawo lakumunsi la mphuno. Mapeto otuluka nawonso ndi okulirapo kuposamuyezontchito kuphulikamphuno. Zosintha zonsezi zimapangidwira kuti ziwonjezere kukula kwa mawonekedwe a kuphulika ndikuchepetsa kutayika kwa liwiro la abrasive.

A short history and development of venturi abrasive nozzles  

 

BSTEC imapereka muyezo wapamwamba kwambiriventurinozzles ndi kawiriulendondi nozi, so ngati muli pamsika mukuyang'ana kukweza ntchito yanu,mutha kulumikizana nafe kuti mumve zambiri.

A short history and development of venturi abrasive nozzles  


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