Yini okufanele ngiyenze uma kukhona ukuvuza ngaphakathi kwe-valve yokuhlola

Hlola ama-valveziyimikhiqizo ebalulekile yokulawula uketshezi embonini yesimanje futhi njengamanje ingenye yezinhlobo ezisetshenziswa kakhulu zamavalvu. Imikhiqizo yayo ephuma kokunye inkulu kakhulu, okuhlanganisa izinhlobo ezihlukahlukene zamavalvu afana nohlobo olunqamukile, uhlobo olulawulayo, uhlobo lwenaliti, uhlobo lwenaliti, kanye nohlobo lokuphuma umoya olunqamuzayo, olunganqamula ngokushesha okuphakathi futhi lulawule futhi lumpintshe okuphakathi epayipini.

Indlela yokufaka yehlola ama-valvengokuvamile ihlukaniswe yaba izinhlobo ezimbili, eyodwa ukufakwa ovundlile, okungukuthi, isiqu se-valve sisendleleni eqondile, futhi i-eksisi yesiteshi ye-valve ihambisana nendiza evundlile. Olunye uhlobo indlela yokufaka eqondile, lapho isiqu se-valve sihambisana nendiza evundlile futhi i-axis yokudlula i-valve i-perpendicular endizeni evundlile. Indlela yokufaka ama-valve inqunywa umklamo wamapayipi wesikhungo sokuklama, okusho ukuthi kokubili ukufakwa okuvundlile nokuqondile kuyindlela evamile futhi engenakugwema yokufaka. Ngemuva kokuthi ukukhiqizwa nokuhlanganiswa kwe-valve yembulunga sekuqediwe, ukuhlolwa kokusebenza kokuvala uphawu kufanele kwenziwe, futhi kuphela ngemva kokuphumelela ukuhlolwa kungathunyelwa. Ngokuvamile, i-valve isebenza kahle ngokuvala ngesikhathi sokuhlolwa, kodwa izinkinga zokuvuza kwangaphakathi zingase zenzeke lapho i-valve ihlanganiswe epayipini elime mpo.

Indawo yokuvalwa kwehlola ama-valvekuvame ukuhlukaniswa ngezinhlobo ezimbili: ukubekwa uphawu okuyisicaba kanye nokubeka uphawu okuyi-conical. Ngokusekelwe empendulweni evela kuzinhlelo zokusebenza zobunjiniyela, endabeni yokufakwa okuqondile kwama-valve okuhlola, ukuvuza kuvame ukwenzeka kumavalvu embulunga ye-cone seal, avame ukuvuza ngesikhathi sokusetshenziswa kokuqala ngemva kokufakwa. Kodwa-ke, impilo yesevisi yama-valve embulunga yophawu oluyisicaba efakwe ngokuvundlile naqondile iyafana.

Ubuhlobo besakhiwo sezingxenye zangaphakathi ze-valve yokuhlola ukuthi indawo engaphezulu ye-valve stem ivinjelwa ukupakisha kanye nesihlalo sokuvala esingaphezulu, futhi isiphetho esiphansi se-valve ye-valve sixhunywe kudiski ye-valve ngokusebenzisa i-clearance fit. Indawo yokuvala yomkhawulo ongezansi wediski ye-valve ixhumene nendawo yokuvala yesihlalo se-valve ukwenza uphawu. Lapho isiqu se-valve siphusha i-disc ye-valve ngasesihlalweni se-valve, kungaba khona ukuxhumana okuhle phakathi kwendawo yokuvala yesihlalo se-valve kanye nediski ye-valve. I-axis ye-valve disc sealing cone ichezuka eksisi yekhoni yokuvala isihlalo se-valve. Lapho isiqu se-valve siphusha i-disc ye-valve ngasesihlalweni se-valve, indawo yokuvala ayikwazi ukuziqondanisa futhi ivaleke, okuholela ekuvuzeni. Ukuthambekela kwediski ye-valve kuyisici esiyinhloko esibangela ukuvuza kwangaphakathi kuma-valve. Kunezizathu ezimbili zokuthambekela ngokweqile kwediski ye-valve. Okokuqala, kukhona igebe lokuhlanganisa phakathi kwediski ye-valve nesiqu se-valve, futhi ikhanda le-valve disc lizotshekela phansi ngenxa yamandla adonsela phansi; Inkinga yesibili ukuthi lapho isiqu se-valve sibekwe ngokuvundlile, siba ugongolo lwe-cantilever. Ngenxa yamandla adonsela phansi, isiqu se-valve siba ne-deformation egobela ebheke phansi, okwenza kube kubi nakakhulu ukutsheka kwediski ye-valve.