Endaweni yokusebenzela yakwa-Jinbin, kuhlolwe amavalvu ovemvane amahlanu anobubanzi obukhulu obuphindwe kabili. Ubukhulu bawo buyi-DN2200, futhi imizimba ye-valve yenziwe nge-ductile iron. I-valve ngayinye ye-butterfly ifakwe i-actuator kagesi. Okwamanje, lezi ezininganaizivalo uvemvanesezihloliwe futhi zamukelwa, futhi zilinde ukupakishwa nokuthunyelwa.

Ngokungafani namavalvu ovemvane agxilile (lapho isiqu se-valve siqondana nendawo emaphakathi yepuleti uvemvane kanye nomzimba we-valve) noma i-valve eyodwa yovemvane ene-eccentric flanged (lapho kuphela isiqu se-valve sichezuka phakathi nendawo yepuleti lovemvane), ama-valve uvemvane ane-eccentric kabili athatha idizayini ene-eccentric ekabili "ye-valve axis ye-valve ephambukisa i-valve emaphakathi nendawo yovemvane." umzimba we-valve".

Lesi sakhiwo senza ukuba ipuleti uvemvane lihlangane nesihlalo sevalvu kuphela lapho isiseduze nokuvala ngesikhathi sokuvula nokuvala. Phakathi nesikhathi sonke sokushaywa, ipuleti levemvane lihlukaniswe ngokuphelele nesihlalo se-valve, kunciphisa kakhulu ukungqubuzana nokugqoka kwendawo yokuvala. Ikakhulukazi ezimweni ezinobubanzi obukhulu, ingagwema "ukungqubuzana okunzima" endaweni yokuvala okubangelwa ukuzithwala kwepuleti levemvane noma ingcindezi ephakathi nendawo, okunweba kakhulu impilo yesevisi yebhangqa elivalekayo, ngokuvamile elingaphezu kuka-30% ubude kunalelo lamavalvu evemvane ensimbi eyodwa ene-ductile.

Ipuleti uvemvane levalvu yovemvane kagesi enobubanzi obukhulu lisebenzisa idizayini ehlelekile. Uma ivuleke ngokugcwele, ipuleti lovemvane linendawo encane yokuvimbela emaphakathi kanye ne-coefficient yokumelana nokugeleza okuphansi, okunganciphisa ukulahlekelwa kwamandla kwesistimu yepayipi. Emapayipini agelezayo amakhulu anobubanzi obungu-DN1000 noma ngaphezulu (njengemigqa emikhulu yokuphakelwa kwamanzi emadolobheni kanye nezinhlelo zamanzi ezijikelezayo zokuphehla amandla), ukusetshenziswa kwamandla kwesethi yephampu kusindisiwe kakhulu.

Impahla yomzimba ye-valve ingakhethwa ku-ayoni eyi-ductile (amanzi kamasipala), insimbi ye-carbon (kuwoyela wemboni), noma insimbi engagqwali (kwemidiya egqwalayo) ngokusekelwe kuzici ze-medium. Ingaphezulu lepuleti lovemvane lingafuthwa ngongqimba olungagugi (njenge-tungsten carbide), elingamelana nokuguguleka kwemidiya equkethe inani elincane lezinhlayiya (njengesihlabathi ne-slag). Ukuze kudluliswe uketshezi oluqukethe ukungcola okufana nendle kanye ne-ash slurry, impilo yayo yesevisi iphindwe izikhathi ezi-2 kuya kwezi-3 kunama-valve ovemvane avamile.

Ububanzi obukhului-valve ye-butterfly ephindwe kabili, ngokusungula izinto ezintsha, iye yalinganisela ukulawula ukugeleza, ukusebenza kokuvala nempilo yokusebenza kwamapayipi anobubanzi obukhulu. Sekuyisixazululo esisebenzayo sokushintsha ama-valve amasango endabuko kanye nama-valve ebhola ezinhlelweni zokugeleza okuphezulu neziyinkimbinkimbi kumasipala, amandla, ukongiwa kwamanzi, izimboni nezinye izinkambu. Ilungele ikakhulukazi izimo zokusebenza zesikhathi eside ezizwelayo ekusetshenzisweni kwamandla kanye nezindleko zokuyilungisa.