Iziqwenga ezine eziSisiseko zeZixhobo ze-Electrostatic Spray Systems

uninzi yengubo Iinkqubo zokutshiza ze-electrostatic zibandakanya izixhobo ezine ezisisiseko - ihopha yokutya, umpu we-electrostatic powder spray, umthombo wamandla we-electrostatic, kunye neyunithi yokubuyisela umgubo. Ingxoxo yesiqwenga ngasinye, ukusebenzisana kwayo namanye amacandelo, kunye neendlela ezahlukeneyo ezikhoyo ziyimfuneko ukuqonda ukusebenza komsebenzi wale nkqubo.

Umgubo unikezelwa kumpu wokutshiza ukusuka kwiyunithi yesondlo somgubo. Ngokuqhelekileyo umgubo wezinto ezigcinwe kule yunithi mhlawumbi uguquguqukayo okanye uxhulumane-wondliwa kwisixhobo sokumpompa ukuze uthuthelwe kwi(s) imipu yokutshiza (Figure 5-9). Iinkqubo zesondlo ezisandul 'ukuphuhliswa zinokumpompa umgubo ngokuthe ngqo kwibhokisi yokugcina.

Isixhobo sokupompa ngokuqhelekileyo sisebenza njenge-venturi, apho ukunyanzeliswa okanye ukunyanzeliswa komoya kudlula kwimpompo, ukudala umphumo we-siphoning kunye nokudweba umgubo kwi-hopper yokutya kwi-powder hoses okanye iibhubhu zokutya, njengoko kuboniswe kwi-Figure 5-10. Umoya yimfuzaralisetyenziselwa ukwahlula amasuntswana omgubo ukuze kube lula ukuthuthwa kunye nokutshaja amandla. Umthamo kunye nesantya sokuhamba komgubo unokutshintshwa.

Kwiimeko ezininzi, isixhobo esondlayo sisebenzisa nokuba ngumoya, ukungcangcazela, okanye izivuseleli ezisebenza ngoomatshini ukunceda “ekwaphuleni” ubunzima bomgubo. Esi senzo sikhokelela ekuthuthweni okulula kakhulu komgubo, ngelixa uncedisa ekulawuleni umthamo kunye nesantya sokuhamba komgubo kwi-spray gun (s). Ulawulo oluzimeleyo lomgubo kunye nomthamo womoya lunceda ekufumaneni ubukhulu obunqwenelekayo bokugquma. I-powder feeder iyakwazi ukubonelela ngezinto ezaneleyo kwi-electrostatic guns yokutshiza enye okanye ngaphezulural iinyawo kude. I-powder feeders ifumaneka kwiisayizi ezininzi ezahlukeneyo, kunye nokukhethwa kuxhomekeke kwisicelo, inani lemipu ekuza kunikezelwa, kunye nomthamo womgubo wokutshizwa ngexesha elithile. GeneralYakhiwe kakuhle ngephepha lesinyithi, iyunithi yesondlo inokuxhonywa kufuphi nayo, okanye ibe yintlanganisela.ral inxalenye, iyunithi yokubuyisela.

Iiyunithi ze-feeder, ezisebenzisa umoya omanzi ukwenza lula ukumpompa imathiriyeli engumgubo kwingqikelelo yokutshiza. Umoya ocinezelweyo, okanye unyanzeliswe, unikezelwa kwijini ye-plenum yomoyaralibekwe ezantsi kweyunithi yesondlo. Phakathi kwe-plenum yomoya kunye nomzimba oyintloko weyunithi ye-feeder yi-membrane, edla ngokwenziwa nge-porous plastic-composite material. Umoya ocinezelweyo udlula kuwo ukuya kumzimba oyintloko weyunithi yokutya, apho umgubo ugcinwa khona. Isenzo se-fluid somoya siphumela ekuphakamiseni i-powder material phezulu, ukudala i-agitated, okanye i-fluidized, state (Figure 5-2). Ngesi senzo se-fluidizing, kunokwenzeka ukulawula ukulinganisa umgubo oxutywe kwiyunithi ye-feeder ngesixhobo esiqhotyoshelweyo, okanye esifakwe emanzini, se-venturi-style (jonga uMzobo 5-9).

Xa kusetyenziswa iiyunithi zesondlo sodidi lomxhuzulane, umsebenzi ubandakanya iyunithi emile njenge-conical okanye ifaneli apho kugcinwa khona imathiriyeli engumgubo. Izixhobo zokumpompa ezincanyathiselwe kolu hlobo lweyunithi yesondlo ngokuqhelekileyo zezompompo wohlobo lwe-venturi. Kwezinye iimeko, i-vibration okanye i-stirrers ye-mechanical isetyenziselwa ukunyusa i-powder siphoning ngumphumo we-venturi oveliswa sisixhobo sokupompa. I-powder yi-gravity eyondliwa kwizixhobo zokupompa, kwaye i-fluidizing of powder ayiyimfuneko. Kwakhona, bona uMfanekiso 5-9. I-powder inokuthi ihanjiswe ngokuthe ngqo kwiibhokisi ze powder okanye izitya zisebenzisa i-tube ye-siphon ephindwe kabini, enika i-fluidization yendawo eyaneleyo ukuvumela ukuhanjiswa okufanayo.

Izixhobo zokuhluza ngamanye amaxesha zisetyenziswa ngokudityaniswa neeyunithi zesondlo ukukhangela nakuphi na ukungcola, amagaqa omgubo, kunye nolunye ubutyobo, kunye nokubeka umgangatho womgubo phambi kokutshiza. Ezi zisefu zinokuthi zifakwe ngokuthe ngqo okanye ngaphezulu kweyunithi yokutya ukuze kube lula ukuhamba komgubo ngaphakathi kwe-loop evaliweyo yokuhanjiswa komgubo, isitshizi kunye nokubuyisela (Umfanekiso 5-1 1).

Iziqwenga ezine eziSisiseko zeZixhobo ze-Electrostatic Spray Systems