Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm kev tsav tsheb kev nyab xeeb valve

Pilot ua haujlwm kev nyab xeeb valve yog ib hom kev tiv thaiv kev nyab xeeb valve, nws qhov qhib thiab kaw qhov chaw yog nyob rau hauv ib txwm kaw lub xeev nyob rau hauv qhov kev txiav txim ntawm sab nraud quab yuam, thaum lub nruab nrab siab nyob rau hauv cov khoom los yog pipeline nce, nws yog cia li qhib thaum nws tshaj qhov teev. tus nqi, thiab tus tsav kev ruaj ntseg valve tiv thaiv qhov nruab nrab siab nyob rau hauv lub raj xa dej los yog cov khoom siv los ntawm ntau tshaj qhov teev tus nqi los ntawm kev tso tawm qhov nruab nrab sab nraum lub system. Pilot ua haujlwm kev nyab xeeb li qub tau muab faib ua ntsug rauj hom, qib qib, hom caij nplooj ntoos hlav thiab tsav ua haujlwm (pulse type) raws li cov qauv qauv; Raws li cov qauv ntawm lub cev valve, nws tuaj yeem muab faib ua ob hom: kaw hom thiab tsis kaw hom. Lub kaw kev ruaj ntseg valve tsis xau qhov nruab nrab tawm, thiab tag nrho cov ntawm lawv tau tawm mus rau qhov chaw xaiv raws li qhov hluav taws xob, uas feem ntau yog siv rau hauv cov tshuaj lom thiab corrosive media. Rau huab cua thiab chav kev nyab xeeb li qub, tsis yog kaw kev nyab xeeb li qub feem ntau siv. Rau kev xaiv cov khoom siv kev nyab xeeb valve, nws yuav tsum tau txiav txim siab raws li qhov tseeb sealing siab. Rau lub caij nplooj ntoos hlav-loaded kev nyab xeeb li qub, springs nrog ntau theem ua hauj lwm siab nyob rau hauv lub nominal siab (PN) ntau yam, ntxiv rau qhov qhia txog kev ruaj ntseg valve qauv, lub npe, nruab nrab thiab kub, yuav tsum tau qhia lub sealing siab ntawm lub valve lub cev, txwv tsis pub nws. yuav tsum tau muab raws li qhov siab tshaj plaws sealing siab.