Siyini isisekelo sokuzuza ukuvalwa kwe-valve yebhola?

Ukubekwa uphawu kweama-valve ebholaincike kakhulu ekulinganeni okuqinile phakathi kwebhola nesihlalo sevalvu. Umgomo wokuvala kanye nendlela yokuqalisa imi kanje:

Isakhiwo sokuvalwa kwe-ai-valve yebholaijikeleza ukwakheka kokulingana phakathi kwebhola nesihlalo sevalvu. Lapho i-valve yebhola isesimweni esivaliwe, imbobo edlulayo yebhola incike kumugqa ophakathi nendawo yazo zombili iziphetho zomzimba we-valve, futhi ingaphezulu lebhola lixhumene eduze nendawo yokuvala yesihlalo se-valve ukuze kwakheke umgoqo wokuvala, ukuvimbela ukuvuza okuphakathi. Ngokwezinto ezihlukene zokuvala, ama-valve ebhola angahlukaniswa abe izinhlobo ezimbili: izimpawu eziqinile nezinsimbi ezithambile. Amavalvu ebhola eliqinile asebenzisa insimbi (njengensimbi engagqwali, ingxubevange eqinile) njengendawo yokuvala, futhi afinyelele ukuvala ngokuminyanisa ngomshini noma ngokulayisha intwasahlobo phakathi kwezinsimbi. Zifanele izinga lokushisa eliphezulu, umfutho ophezulu, kanye nezindawo zemidiya ezigqwala kakhulu; Amavalvu ebhola athambile enziwe ngezinto ezinwebekayo njengerabha ne-polytetrafluoroethylene (PTFE), asebenzisa ukucindezela okuphakathi ukuze kubangele ukuwohloka okunwebeka kwezinto ezithambile, ngaleyo ndlela abambelele ngokuqinile ebusweni bebhola ukuze kwakheke uphawu. Benza kahle ngaphansi kwengcindezi ephansi kanye nezimo zokushisa kwegumbi.

Ukusebenza kokuvalwa kweama-valve ebholaithonywa izici eziningi. Ukuqina, ukumelana nokuguga, nokumelana nokugqwala kwezinto zokuvala kuthinta ngqo impilo yokuvala. Isibonelo, ubulukhuni bobuso bendawo yokuvala insimbi idinga ukuthuthukiswa ngezinqubo ezifana nokufafaza ama-alloys aqinile noma i-laser cladding; Mayelana nokunemba kokucubungula, amapharamitha afana nokuyindilinga okuyindilinga kanye nobuhwaqane bokuvalwa kwendawo kufanele kulawulwe ngokuqinile, futhi ubulukhuni bokuvala indawo enani lika-Ra ngokuvamile lidingeka libe ngu-≤ 0.8 μ m; Ikhwalithi yomhlangano ibaluleke ngokulinganayo, ukulawulwa okungalungile kwamandla okulayisha kuqala kungaholela ekugugeni okudlulele noma ukuvuza kwendawo yokuvala. Ukwengeza, izici ze-medium (ezifana nokugqwala, izinga lokushisa, ingcindezi) nezimo zokusebenza (ezifana nokuvula nokuvala isivinini) nazo zingaba nomthelela omkhulu kumphumela wokuvala.

Ukugcina ukusebenza kokuvala i-valve yebhola, kuyadingeka ukuhlola njalo ukugqokwa kwendawo yokuvala, ukuhlanza ukungcola ngesikhathi esifanele ukuvimbela imihuzuko, nokugcoba izingxenye ezihambayo ezifana nesiqu se-valve. Ukukhetha izakhiwo ezifanelekile zokubeka uphawu nezinto ezisetshenziswayo ezimweni ezehlukene zokusebenza, njengokusebenzisa ama-valve ebhola ensimbi aqinile ezindaweni ezishisa kakhulu kanye ne-fluorine noma i-ceramic coating seal surface for corrosion media, kungandisa ngokuphumelelayo impilo yesevisi yama-valve ebhola futhi kuqinisekise ukwethembeka kokuvala.