Ivalve yokulawula ipneumatic ibhekisa kwivalve yokulawula umoya, ethatha umthombo womoya njengamandla, isilinda njenge-actuator, isiginali ye-4-20mA njengophawu lokuqhuba, kwaye iqhuba ivalve ngokusebenzisa izixhobo ezifana ne-valve positioner yombane, i-converter, i-solenoid valve kunye nevalve yokubamba, ukwenzela ukuba ivalve yenze ivalve okanye enye inkqubo yolawulo, iparamitha yolawulo kunye nenkqubo yokuqukuqela elinganayo, iparamitha. ophakathi kwemibhobho inokulungelelaniswa ngendlela elungelelanisiweyo.
Ivalve yokulawula umoya ineengenelo zolawulo olulula, impendulo ekhawulezayo kunye nokhuseleko lwangaphakathi, kwaye xa isetyenziswa kwiimeko ezinokutsha neziqhumayo, akufuneki ukuba ithathe amanyathelo angakumbi obungqina bokudubula.
Umgaqo osebenzayo wevalve yokulawula umoya:
Ivalve yokulawula umoya idla ngokuqulunqwa nge-actuator ye-pneumatic kunye nokulawula uxhulumaniso lwevalvu, ukufakwa kunye nokugunyaziswa. I-actuator ye-pneumatic inokohlulwa ibe ziindidi ezimbini: uhlobo lwesenzo esinye kunye nesenzo esiphindwe kabini. Kukho intwasahlobo ebuyayo kwi actuator yentshukumo enye, kodwa akukho ntlakohlaza yokubuya kwi actuator yesenzo esiphindiweyo. I-activator enye inokubuyela ngokuzenzekelayo kwindawo yokuvula okanye yokuvala ebekwe yivalve xa umthombo womoya ulahlekile okanye ivalve isilela.
Indlela yokusebenza yevalve yokulawula umoya:
Ukuvulwa komoya (okuqhelekileyo kuvalwe) kuxa uxinzelelo lomoya kwintloko ye-membrane luyanda, ivalve ihambela kwicala lokwanda kokuvula. Xa igalelo loxinzelelo lomoya lifikelelwe, i-valve ikwimeko evulekile ngokupheleleyo. Ngaloo ndlela, xa uxinzelelo lomoya luyancipha, i-valve ihamba ngendlela evaliweyo, kwaye xa kungekho moya ongenayo, i-valve ivalwe ngokupheleleyo. Ngokuqhelekileyo, sibiza ivalve elawula ukuvuleka komoya njengevalve evaliweyo.
Isenzo sohlobo lokuvala umoya (uhlobo oluqhelekileyo oluvulekileyo) luchasene ngqo nohlobo lokuvula umoya. Xa uxinzelelo lomoya lukhula, i-valve ihamba ngendlela evaliweyo; xa uxinzelelo lomoya luyancipha okanye alukho, i-valve iya kuvula okanye ivule ngokupheleleyo. Ngokuqhelekileyo, sibiza ivalve elawula igesi evaliweyo njengevalvu evulekileyo
Umahluko kunye nokukhetha phakathi kwevalve yebhola yeqonga eliphezulu kunye nevalve yebhola eqhelekileyo
Ivalve yeqonga lebhola ephezulu, ebizwa ngokuba yi-valve ephezulu yeqonga, ithatha i-05211 yomgangatho wokuvelisa, iphosa isikwere okanye i-flange ejikelezileyo kunye nevalve yebhola njengomzimba, kwaye isiphelo sobuso beqonga siphezulu kunomphetho ongaphandle weflange kuzo zombini iziphelo, ezingancedi kuphela ukufakelwa kwe-pneumatic actuator, i-actuator yombane kunye nezinye izixhobo zokuphucula actuator, kwaye inkangeleko intle ngakumbi kwaye isulungekile.
Ivalve yebhola yeqonga eliphezulu yimveliso yendalo yevalve yebhola yesibiyeli eqhelekileyo. Umahluko phakathi kwe-valve yebhola yeqonga eliphezulu kunye ne-valve yebhola eqhelekileyo kukuba inokudibaniswa ngokuthe ngqo kunye ne-actuator yokuqhuba ngaphandle kokongeza i-bracket yokudibanisa, ngelixa i-valve yebhola eqhelekileyo inokufakwa kuphela kunye ne-actuator emva kokuba i-bracket ifakwe. Ukongezelela ekupheliseni ukufakwa kwe-bracket eyongezelelweyo, kuba ifakwe ngokuthe ngqo kwiqonga, ukuzinza phakathi kwe-actuator kunye ne-valve yebhola kuphuculwe kakhulu.
Inzuzo yevalve yebhola yeqonga eliphezulu kukuba inokufaka ngokuthe ngqo i-pneumatic okanye i-actuator yombane kwiqonga layo, ngelixa i-valve yebhola eqhelekileyo idinga uqhagamshelo lwevalve eyongezelelweyo, enokuthi ichaphazele ivalve esetyenziswayo ngenxa yesibiyeli esixekethileyo okanye imvume yokudibanisa ngokugqithisileyo. I-valve yebhola yeqonga ephezulu ayiyi kuba nale ngxaki, kwaye ukusebenza kwayo kuzinzile kakhulu ngexesha lokusebenza.
Ekukhethweni kwevalve yebhola yeqonga eliphezulu kunye nevalve yebhola eqhelekileyo, isakhiwo sangaphakathi se-valve ye-billiard yesikhulumi esiphezulu sisengumgaqo wokuvula nokuvala, ohambelana ne-valve yebhola eqhelekileyo. Ukongeza kwiinzuzo ezikhankanywe ngasentla, xa iqondo lokushisa eliphakathi liphezulu, i-bracket yokudibanisa kufuneka isetyenziswe ukukhusela ukusetyenziswa okuqhelekileyo kwe-activator kunye nokukhusela i-activator ukuba ingakwazi ukusebenzisa ngenxa yokudlulisa ukushisa okuphakathi.
Ixesha lokuposa: May-19-2021