Intshayelelo emfutshane yeevalvu zesango
2020-04-07
I-1 umgaqo wokusebenza kunye nomsebenzi we-valve yesango: I-valve yesango yeyohlobo lwevalve yebhloko, ehlala ifakwe kumbhobho onobubanzi obungaphezu kwe-100mm ukuvala okanye ukudibanisa ukuhamba okuphakathi kumbhobho. Njengoko i-disc iplate yesango, ngokuqhelekileyo ibizwa ngokuba yi-valve yesango. Ivalve yesango ineenzuzo zamandla amancinci okutshintsha kunye nokumelana nokuhamba okuncinci. Nangona kunjalo, indawo yokutywina kulula ukuyinxiba kunye nokuvuza, i-stroke yokuvula inkulu, kwaye ukugcinwa kunzima. Ivalve yesango ayinakusetyenziswa njengevalve elawulayo. Kufuneka ibe kwindawo evuleke ngokupheleleyo okanye evalwe ngokupheleleyo. Umgaqo wokusebenza ngulo: xa ivalve yesango ivaliwe, isiqu siyehla sijonge ezantsi ngokuxhomekeke kubude bendawo yokutywina yevalve yesango kunye nendawo yokutywina yesitulo sevalve, egudileyo, ithe tyaba kwaye ingaguquguquki. Ziyalingana ukuze zithintele i-medium ukuba ingaphumi, kwaye zithembele kwi-wedge ephezulu ukunyusa isiphumo sokutywinwa. Ukuvalwa kwayo kuhamba ngokuthe nkqo kumgca ophakathi. Kukho iintlobo ezininzi zeevalvu zesango, ezinokuthi zohlulwe zibe luhlobo lwe-wedge kunye nohlobo oluhambelanayo. Uhlobo ngalunye lohlulwe lube yinkunzi yegusha enye kunye nenkunzi yegusha ephindwe kabini. 2 Ulwakhiwo: Umzimba wevalve yesango wamkela uhlobo lokuzitywina. Imowudi yoqhagamshelo yesigqubuthelo sevalvu kunye nomzimba wevalve kukusebenzisa uxinzelelo oluphezulu lwesixhobo esikwivalvu ukucinezela ukupakisha ukutywina ukufezekisa injongo yokutywina. Uxinzelelo oluphezulu lwe-asbestos ukupakisha ngocingo lobhedu lusetyenziselwa ukutywinwa kwevalve yesango. Ulwakhiwo lwevalvu yesango ikakhulu yenziwe ngumzimba wevalve, ibhonethi, isakhelo, isiqu, idiskhi yevalve yasekhohlo nasekunene, isixhobo sokutywina, njl njl. Izinto zomzimba zevalvu zahlulwe zibe yintsimbi yekhabhoni kunye nentsimbi yealloyi ngokoxinzelelo kunye nobushushu bombhobho ophakathi. . Ngokuqhelekileyo ifakwe kwi-valve yenkqubo yomphunga ogqithisiweyo, t> 450 ℃, umzimba we-valve wenziwe nge-alloy material, njenge-valve yokukhupha ibhoyili, njl. Isixhobo somzimba wevalve yintsimbi yekhabhoni. Iivalve zesango zifakwe ngokubanzi kwimibhobho yamanzi e-steam kunye ne-DN ≥ 100mm. Kukho iintlobo ezintathu zeedayamitha eziqhelekileyo zevalve yesango kwinqanaba lokuqala le-wgz1045 / 17.5-1 kwibhoyila e-Zhangshan, oko kukuthi i-DN300, i-dnl25 kunye ne-dnl00.