Ivalve yobushushu obuphezulu ibhekisa kwivalve esebenza phantsi kweemeko zobushushu obuphezulu, esetyenziswa ikakhulu kwi-petroleum, kwishishini lekhemikhali, kwi-metallurgy kunye namanye amashishini. Ngenxa yemingeni emininzi ekutshintsheni ukusebenza kwezinto, ukuzinza kwesakhiwo kunye nokutywinwa kwiindawo eziphezulu zokushisa, ukuveliswa kwee-valve eziphezulu zokushisa kunzima. Eli nqaku liza kuvela kubunzima bokuvelisa ivalve yobushushu obuphezulu kunye neemfuno zobugcisa zemiba emibini yohlalutyo.
Okokuqala, ubunzima bokuvelisa
1. Ukukhethwa kwezinto eziphathekayo: Ngaphantsi kwendawo yokushisa ephezulu, ukusebenza kwezinto kulula ukutshintsha, njengokumelana ne-oxidation, ukuxhatshazwa kokugqoka, amandla kunye nokunye. Ke ngoko, xa kusenziwa iivalve zobushushu obuphezulu, kufuneka ukhethe izinto ezinomgangatho ophezulu wokushisa okuphezulu, njenge-superalloys, i-ceramics, izinto ezidibeneyo, njl.
2. Uyilo lwesakhiwo: I-valve ephezulu yokushisa isebenza kwindawo ephezulu yokushisa, kwaye ukuyila kwayo kwesakhiwo kufuneka kuthathelwe ingqalelo ukwandiswa kwe-thermal, ukuguqulwa kwe-thermal kunye noxinzelelo lwe-thermal kunye nezinye izinto eziphathekayo ukuqinisekisa ukuba i-valve inozinzo oluhle. kunye nokutywinwa phantsi kweemeko eziphezulu zokushisa.
3. I-teknoloji yokutywina: phantsi kwendawo yokushisa ephezulu, ukusebenza kwezinto zokutywinwa kuchaphazeleka lula, njenge-oxidation, ukugqoka njalo njalo. Ke ngoko, xa kusenziwa iivalve zobushushu obuphezulu, kuyafuneka ukuba kusetyenziswe izinto zokutywina ezinomsebenzi obalaseleyo wokutywinwa kobushushu obuphezulu kwaye wamkele isakhiwo sokutywinwa esifanelekileyo.
4. Inkqubo yokuvelisa: Iimfuno zenkqubo yokuvelisa i-valve ephezulu, njenge-welding, machining, indibano kunye nezinye iinkqubo kufuneka zilawulwe ngokungqongqo ukuqinisekisa umgangatho kunye nokusebenza kwevalve.
2. Iimfuno zobugcisa
1. Amandla aphezulu okushisa: iivalve eziphezulu zeqondo lokushisa kufuneka zibe namandla okwaneleyo okushisa okuphezulu ukuze kuqinisekiswe ukuba akuyi kubakho deformation okanye umonakalo phantsi kweemeko eziphezulu zokushisa.
2. Ukumelana ne-oxidation: izixhobo zevalve yobushushu obuphezulu kufuneka zibe nokumelana ne-oxidation elungileyo ukuxhathisa i-oxidative corrosion kwindawo zobushushu obuphezulu.
3. Ukuxhatshazwa kokugqoka: Iivalve eziphezulu zokushisa kufuneka zibe nokumelana okwaneleyo kokugqoka ukuze kuqinisekiswe ukuba aziyi kuphumelela ngenxa yokugqoka phantsi kweemeko eziphezulu zokushisa.
4. Ukuqina: iivalvu eziphezulu zokushisa kufuneka zibe nokuqina okulungileyo ukuqinisekisa ukuba akuyi kubakho ukuvuza kwiindawo eziphezulu zokushisa.
5. Ukuzinza: iivalve eziphezulu zokushisa kufuneka zibe nokuzinza okulungileyo ukuqinisekisa ukuba ziyakwazi ukusebenza ngokuqhelekileyo phantsi kweemeko eziphezulu zokushisa.
Imveliso yevalve yobushushu obuphezulu inobunzima obuthile, idinga ukoyisa ukukhethwa kwezinto, uyilo lolwakhiwo, itekhnoloji yokutywina, inkqubo yokuvelisa kunye nobunye ubunzima. Ngelo xesha, i-valve ephezulu yokushisa idinga ukuhlangabezana neemfuno zobuchwepheshe zamandla aphezulu okushisa, ukuchasana kwe-oxidation, ukuxhatshazwa kokugqoka, ukutywinwa, ukuzinza kunye nokunye kwindlela yokuvelisa ukuqinisekisa umgangatho kunye nokusebenza kwevalve.
Ixesha lokuposa: Sep-08-2023
