Phantsi kweemeko eziqhelekileyo, iivalvu zemizi-mveliso azenzi iimvavanyo zamandla xa zisetyenziswa, kodwa emva kokulungisa umzimba wevalve kunye nesigqubuthelo sevalvu okanye ukonakala komzimba wevalve kunye nesigqubuthelo sevalvu kufuneka zenze iimvavanyo zamandla. Kwiivalvu zokhuseleko, uxinzelelo lokumisela kunye noxinzelelo lokubuyisela kunye nolunye uvavanyo luya kuhambelana neenkcukacha kunye nemimiselo efanelekileyo. Ivalve kufuneka ivavanyelwe amandla kunye nokuqina ngaphambi kokufakwa. Iivalve zoxinzelelo oluphakathi kunye nophezulu kufuneka zihlolwe . Ivalve yovavanyo loxinzelelo lwemithombo yeendaba edla ngokusetyenziswa ngamanzi, i-oyile, umoya, umphunga, initrogen, njl.njl. Zonke iintlobo zeevalvu zoshishino kubandakanywa iindlela zovavanyo loxinzelelo lwe-pneumatic zimi ngolu hlobo lulandelayo:

1.Ivalve yebholaindlela yovavanyo loxinzelelo

Uvavanyo lwamandla evalve yebhola yomoya kufuneka lwenziwe kwisiqingatha sebhola evulekileyo.

(1)Ibhola edadayouvavanyo lokuqina kwevalve: ivalve ivuleke isiqingatha, esinye isiphelo singeniswa kwindawo yovavanyo, kwaye esinye isiphelo sivaliwe; Vula ibhola ngamaxesha amaninzi, vula isiphelo esivaliweyo xa i-valve ivaliwe, kwaye ukhangele ukusebenza kokutywinwa kokupakisha kunye ne-gasket, kwaye akufanele kubekho ukuvuza. Emva koko yazisa i-test medium ukusuka kwelinye icala kwaye uphinde olu vavanyo lungentla.

(2)Ibhal elungisiweyoUvavanyo lwe-valve ye-valve: ngaphambi kovavanyo, ibhola iguqulwa ngamaxesha amaninzi ngaphandle komthwalo, kwaye i-valve yebhola ehleliweyo ikwimeko evaliweyo, kwaye uvavanyo oluphakathi lutsalwa ukusuka kwelinye icala ukuya kwixabiso elichaziweyo; I-gauge yoxinzelelo isetyenziselwa ukujonga ukusebenza kokutywinwa kwesiphelo sokungena. Ukuchaneka komlinganiselo woxinzelelo ngu-0.5 ~ 1, kwaye uluhlu lokulinganisa luyi-1.5 amaxesha oxinzelelo lovavanyo. Ngexesha elichaziweyo, akukho nto ye-depressurization ifanelekile; Emva koko yazisa i-test medium ukusuka kwelinye icala kwaye uphinde olu vavanyo lungentla. Emva koko, i-valve ivule isiqingatha, zombini iziphelo zivaliwe, i-cavity yangaphakathi izaliswe ngamajelo, kwaye ukupakisha kunye ne-gasket ihlolwe phantsi koxinzelelo lovavanyo ngaphandle kokuvuza.

(3)Ivalve yebhola eneendlela ezintathu skufuneka ivavanywe ukuqina kwiindawo ezahlukeneyo.

2.Khangela ivalveindlela yovavanyo loxinzelelo

Jonga imeko yovavanyo lwevalve: uhlobo lokuphakamisa i-valve i-disc axis ikwimo ethe tye kwaye ithe nkqo; I-axis yeshaneli yevalve yokukhangela i-swing kunye ne-axis ye-disc iphantse ihambelane nomgca othe tye.

Ngethuba lovavanyo lwamandla, uvavanyo oluphakathi luziswa kwixabiso elichaziweyo ukusuka ekupheleni kokungena, esinye isiphelo sivaliwe, kunye nomzimba we-valve kunye ne-valve cover bafanelekile ngaphandle kokuvuza.

Uvavanyo lokutywina luyakwazisa uvavanyo oluphakathi ukusuka kwisiphelo sokuphuma, jonga umphezulu wokutywina kwisiphelo sokungena, kwaye ukupakishwa kunye negasket iya kuba kufaneleka ukuba akukho kuvuza.