Isiseko sokukhetha i-actuator yombane ye-butterfly valve

A. I-torque yokusebenza

I-torque yokusebenza yeyona parameter ibalulekileyo ekukhetheniivalvu yebhabhathanei-actuator yombane. I-torque yokukhupha ye-actuator yombane kufuneka ibe yi-1.2 ~ 1.5 i-torque ephezulu yokusebenza yeivalvu yebhabhathane.

B. Uxinzelelo lokusebenza

Kukho izakhiwo ezimbini eziphambili zeivalvu yebhabhathane isixhobo sombane: enye ayinayo ipleyiti yokutyhala, kwaye i-torque iphuma ngokuthe ngqo; enye ixhotyiswe ngepleyiti yokutyhala, kwaye i-torque yokuphuma iguqulwa ibe yi-output thrust nge-valve stem nut kwipleyiti yokutyhala.

C. Inani lokujika kwe-output shaft

Inani lokujika kwe-output shaft ye-valve electric actuator linxulumene nobubanzi obuqhelekileyo be-valve, i-pitch ye-valve stem, kunye nenani leentloko ezinemisonto. Kufuneka ibalwe ngokwe-M=H/ZS (u-M linani lilonke leenguqu ekufuneka isixhobo sombane sidibane nazo, kwaye u-H bubude bokuvula kweValve, u-S bububanzi be-thread ye-valve stem drive, u-Z linani leentloko ze-stem thread).

D. Ububanzi besiqu

Kwiivalvu zesiqu eziphakamayo ezininzi, ukuba ububanzi besiqu obuphezulu obuvunyelwe yi-actuator yombane abukwazi ukudlula kwisiqu sevalvu exhotyisiweyo, abunakudityaniswa bube yivalvu yombane. Ke ngoko, ububanzi bangaphakathi bomngxuma ophumayo ongenanto wesixhobo sombane kufuneka bube bukhulu kunobubanzi bangaphandle besiqu sevalvu yevalvu yesiqu esinyukayo. Kwiivalvu ezijika inxalenye kunye neevalvu zesiqu esimnyama kwiivalvu ezijika ezininzi, nangona kungekho mfuneko yokuqwalasela ukudlula kobubanzi besiqu sevalvu, ububanzi besiqu sevalvu kunye nobukhulu bendlela ephambili nazo kufuneka ziqwalaselwe ngokupheleleyo xa kukhethwa, ukuze ivalvu isebenze ngokuqhelekileyo emva kokuhlanganiswa.

E. Isantya sokuphuma

Ukuba isantya sokuvula nokuvala kwevalvu yebhabhathane sikhawuleza kakhulu, kulula ukuvelisa ihamile yamanzi. Ke ngoko, isantya sokuvula nokuvala esifanelekileyo kufuneka sikhethwe ngokweemeko ezahlukeneyo zokusetyenziswa.