Ungayikhetha kanjani i-valve ethembekile ye-butterfly?

Ukukhetha okuthembekileI-I-I-butterfly valveidinga ukucubungula okubanzi kwesakhiwo sayo, impahla, kanye nezimo zokusebenza.

Uhlobo lwesakhiwo luyisisekelo sokukhetha ama-butterfly valve. Ingcindezi ephansi ephansi kanye nezimo zokushisa zasekamelweni (ezinjengezinhlelo zokuhlinzekwa kwamanzi) zilungele ama-valve we-vetterfly aphakathi nendawo, anesakhiwo esilula nezindleko eziphansi; Ama-valves we-eccentric ama-vetterfly angasetshenziswa engcindezi ephakathi nendawo kanye nezindawo zokushisa eziphakathi nendawo (njengamapayipi okushisa emadolobheni), ngokusebenza kangcono ukwenziwa uphawu kunamavalve aphakathi nendawo; Ama-valves ama-vetterfly amathathu kufanele akhethwe ngokushisa okuphezulu kanye nezimo eziphakeme zokusebenza ezinzima (ezinjenge-Steam, ama-oyela kanye namapayipi wensimbi), okucindezelwa okuphezulu kwensimbi, kunempilo ende, kanye nokubekwa uphawu okuthembekile. Isibonelo, lapho uhambisa imithombo yezindaba ezonakalisayo kumapayipi amakhemikhali, umzimba wama-valve we-36 engenasici + ekwakheni uphawu lwe-PTFE ye-eccentric butterfly valve angamelana ngempumelelo ukugqwala kwamakhemikhali.

Ukukhethwa kwezinto ezibonakalayo kuthinta ngqo ukuqina kweama-butterfly valves. Izinto zomzimba we-valve kufanele zihambisane nengcindezi yokusebenza: Izidumbu ze-Iron Valve zingasetshenziswa ezimweni zokushisa eziphansi nasemakamelweni (njengezinhlelo zamanzi zomoya); Izidumbu ze-carbon noma ezingenasici zensimbi kufanele zikhethwe ngezindawo eziphakathi nendawo eziphakeme (njengamapayipi kawoyela); Izimo eziqinile zokugqwala (njengokukhuphuka kwamanzi olwandle) zidinga izinto ezikhethekile ze-alloy. Mayelana nezinto zokwakha uphawu, imidiya engeyona eyonakele (njengamanzi nomoya) ilungele ukubekwa uphawu kwenjoloba; Imidiya yamakhemikhali (njengama-acid nezisekelo) idinga ukubekwa uphawu nge-polytetrafluoroethylene (PTFE); Ukuvalwa kwensimbi (njengensimbi engenasici noma i-hard alloy) kufanele kusetshenziswe ekushiseni okuphezulu kanye nezimo eziphakeme zokucindezela.

Ukuzivumelanisa nezimo ezisebenzayo kungumgomo oyisisekelo weI-I-I-butterfly valveUkukhetha. Kuyadingeka ukucacisa uhlobo oluphakathi (igesi / uketshezi / izinhlayiya okuqukethe okuphakathi), ibanga lokushisa (-196 ℃ kuya ku-600 ℃), ukulinganisa kwengcindezi (PN10 kuya ku-Class2500). Isibonelo, uma isitshalo sokwelashwa kwendle sidinga ukucaphuna ama-secure amaningi, kufanele sikhethe umzimba we-cast valve enobubanzi be-DN300 noma ngaphezulu nerabha elivuthayo butterfly valve; Lapho udlulisela imithombo yezindaba ebonakalayo efana nesiraphu ekusebenzeni kokudla kwezitshalo, ama-eccentric butterfly valves kufanele asetshenziselwe ukunciphisa ukumelana nengxabano.