Ma Nozzles Ophulika Awiri a Venturi 

Blasting Nozzles nthawi zambiri amakhala ndi mawonekedwe awiri: molunjika bore ndi venturi, okhala ndi mitundu ingapo ya mphuno za venturi.

Venturi nozzles nthawi zambiri amagawidwa kukhala single-inlet venturi ndi double-inlet venturi nozzle.

Nozzle imodzi ya venturi ndi mphuno wamba wa venturi. Amapangidwa molowera mozungulira mozungulira, wokhala ndi gawo lalifupi lathyathyathya lolunjika, lotsatiridwa ndi malekezero atalitali omwe amakulirakulira mukafika kumapeto kwa mphuno. Mawonekedwewa apangidwa kuti apange mphamvu yomwe imafulumizitsa kwambiri kutuluka kwa mpweya ndi tinthu tating'onoting'ono ndikugawa mofananamo abrasive pamtundu wonse wa kuphulika, kutulutsa pafupifupi 40% kuchuluka kwa kupanga kuposa mphutsi yowongoka.

Mphuno ya double venturi ikhoza kuganiziridwa ngati milomo iwiri motsatizana yokhala ndi mpata ndi mabowo pakati kuti alole kulowetsa mpweya wa mumlengalenga kumunsi kwa mphuno. Mapeto otuluka nawonso ndi okulirapo kuposa mphuno yamoto yophulika. Milomo iwiri ya venturi imapereka mozungulira 35% yokulirapo kuposa mphutsi wamba ya venturi yokhala ndi kutayika pang'ono pa liwiro la abrasive. Popereka chitsanzo chachikulu cha kuphulika, phokoso lophulika la abrasive limathandizira kuphulika kwamphamvu kwambiri. Ndi yabwino ku ntchito komwe kukufunika kuphulika kwakukulu.

Mu BSTEC, mutha kupeza mitundu yambiri ya ma venturi nozzles.

1.     Yosankhidwa ndi Nozzle Liner Material

• Silicon Carbide Double Venturi Nozzle:moyo wautumiki ndi kulimba kwake ndizofanana ndi tungsten carbide, koma pafupifupi gawo limodzi mwa magawo atatu a kulemera kwa tungsten carbide nozzles. Silicon carbide nozzles ndi njira yabwino kwambiri pamene ogwiritsira ntchito akugwira ntchito kwa nthawi yayitali ndipo amakonda ma nozzles opepuka.

• Boron Carbide Double Venturi Nozzle:chinthu chotalika kwambiri chomwe chimagwiritsidwa ntchito pophulitsa mphuno. Imavala tungsten carbide kasanu mpaka khumi ndi silicon carbide kawiri kapena katatu pakagwiritsidwa ntchito zotupitsa zowopsa. Boron carbide nozzle ndi yabwino kwa ma abrasives ankhanza monga aluminiyamu okusayidi ndi ma mineral aggregates osankhidwa mukamagwira movutikira kupewedwa.

2.    Zosankhidwa ndi Thread Type

• Coarse (Contractor) Ulusi:Ulusi wokhazikika pamafakitale pa ulusi wa 4½ pa inchi (TPI) (114mm), kalembedwe kameneka kamachepetsa kwambiri mwayi wodutsa ulusi ndipo ndikosavuta kuyiyika.

• Ulusi Wabwino(NPSM ulusi): National Standard Free-Fitting Straight Mechanical Pipe Thread (NPSM) ndi ulusi wowongoka wa Makampani omwe amagwiritsidwa ntchito kwambiri ku North America.

3.    Yosankhidwa ndi Nozzle Jacket

• Jacket ya Aluminium:perekani chitetezo chapamwamba kwambiri pakuwonongeka kwamphamvu pakupepuka.

• Jacket yachitsulo:perekani chitetezo chapamwamba kwambiri pakuwonongeka kwamphamvu mu heavyweight.