Isiseko sokukhetha i-butterfly valve valve actuator yombane

A. Itorque esebenzayo

I-torque yokusebenza iyona parameter ibaluleke kakhulu yokukhethaivalve yebhabhathanei actuator yombane. I-torque yemveliso ye-actuator yombane kufuneka ibe yi-1.2 ~ 1.5 amaxesha obuninzi be-torque yokusebenzaivalve yebhabhathane.

B. Ugxininiso olusebenzayo

Kukho izakhiwo ezimbini eziphambili zeivalve yebhabhathane i actuator yombane: enye ayixhotyiswanga nge-thrust plate, kwaye i-torque iphuma ngokuthe ngqo; enye ixhotyiswe ngepleyiti yethrust, kunye netorque ephumayo iguqulelwa ekubeni yi-thrust yemveliso ngokusebenzisa i-valve stem nut kwi-thrust plate.

C. Inani lokujika kweshaft yemveliso

Inani lokujika kweshafti ephumayo yevalve yombane yombane inxulumene nedayamitha yegama levalve, inowuthi yesikhondo sevalvu, kunye nenani leentloko ezinemisonto. Kufuneka ibalwe ngokwe-M=H/ZS (M linani lilonke lokujika ekufuneka isixhobo sombane sidibane nalo, kwaye H bubude bokuvula iValve, S yipitch yentambo yevalve stem drive, Z linani iintloko zemisonto yesiqu).

D. Isiqu sedayamitha

Kwii-valve ze-stem eziguqukayo ezininzi, ukuba ubuninzi be-stem ububanzi obuvunyelwe yi-actuator yombane ayikwazi ukudlula kwi-stem yevalve exhobileyo, ayikwazi ukuhlanganiswa kwi-valve yombane. Ngoko ke, i-diameter yangaphakathi ye-hollow output shaft yesixhobo sombane kufuneka ibe nkulu kunobubanzi bangaphandle besiqu sevalve yevalve yesikhondo esinyukayo. Kwi-valve ye-part-turn kunye ne-dark-stem valves kwi-valve ye-multi-turn-turn, nangona kungekho mfuneko yokuqwalasela i-diameter ye-valve stem, ububanzi be-valve ye-valve kunye nobukhulu bendlela yesitshixo kufuneka kuqwalaselwe ngokupheleleyo. xa ukhetha, ukwenzela ukuba i-valve isebenze ngokuqhelekileyo emva kokuhlanganisana.

E. Isantya semveliso

Ukuba isantya sokuvula nokuvalwa kwevalve yebhabhathane ikhawuleza kakhulu, kulula ukuvelisa isando samanzi. Ngoko ke, isantya esifanelekileyo sokuvula kunye nokuvala kufuneka sikhethwe ngokwemiqathango eyahlukeneyo yokusetyenziswa.