1. Iivalvu yebholaiphuhliswe kwivalvu yeplagi. Inxalenye yayo yokuvula nokuvala isebenza njengesphere, esebenzisa isphere ukujikeleza ama-90 degrees ukujikeleza i-axis yesiqu sevalvu ukufezekisa injongo yokuvula nokuvala.
2. Umsebenzi wevalvu yebhola
Ivalvu yebhola isetyenziselwa kakhulu ukusika, ukusasaza nokutshintsha indlela yokuhamba kwesixhobo esikwipayipi. Ivalvu yebhola eyenzelwe ukuba ibe ngumthombo omile njengo-V ikwanomsebenzi olungileyo wokulungisa ukuhamba.
Ivalvu yebhola ayilula nje kuphela ngesakhiwo, ilungile ekusebenzeni kokutywina, kodwa incinci ngobukhulu, ilula ngobunzima, iphantsi ekusebenziseni izinto, incinci ngobukhulu bokufakelwa, kwaye incinci kwi-torque yokuqhuba ngaphakathi koluhlu oluthile lokudlula. Kulula ukuyisebenzisa kwaye kulula ukufikelela ekuvulekeni nasekuvaleni ngokukhawuleza. Yenye yezona ntlobo zeevalvu ezikhula ngokukhawuleza kwiminyaka engaphezu kweshumi. Ingakumbi kumazwe aphuhlileyo afana ne-United States, iJapan, iJamani, iFransi, i-Itali, iNtshona, neBritane, ukusetyenziswa kweevalvu zebhola kubanzi kakhulu, kwaye iintlobo ngeentlobo kunye nobungakanani bokusetyenziswa kuyaqhubeka nokwanda. Ubomi, ukusebenza okugqwesileyo okulawulayo kunye nophuhliso olunemisebenzi emininzi yevalvu, ukuthembeka kwayo kunye nezinye izalathisi zokusebenza zifikelele kwinqanaba eliphezulu, kwaye zitshintshe iivalvu zesango, iivalvu zokumisa, kunye neevalvu zokulawula.
Ngokuphucuka kwetekhnoloji yeevalvu zebhola, kwixesha elifutshane elibonakalayo, kuya kubakho ukusetyenziswa okubanzi kwimibhobho yeoyile negesi, iiyunithi zokucoca nokuqhekeza ioyile, kunye nomzi-mveliso wenyukliya. Ukongeza, iivalvu zebhola ziya kuba yenye yezona ntlobo ziphambili zeevalvu kwiikhabhinethi ezinkulu neziphakathi kunye namacandelo oxinzelelo oluphantsi noluphakathi kwamanye amashishini.
Iingenelo ezi-3 zevalvu yebhola
Inokumelana okuphantsi kokuhamba kwamanzi (ngokwenene akukho zero)
Ngenxa yokuba ayizukubambeka ngexesha lomsebenzi (xa kungekho lubricant), ingafakwa ngokuthembekileyo kwimidiya ebolayo kunye nolwelo olubila kancinci.
Kwinqanaba eliphezulu loxinzelelo kunye nobushushu, ukutywinwa okupheleleyo kunokufezekiswa.
Ingenza ukuvulwa nokuvalwa ngokukhawuleza, kwaye ixesha lokuvulwa nokuvalwa kwezinye izakhiwo yi-0.05-0.1s kuphela ukuqinisekisa ukuba ingasetyenziswa kwinkqubo yokuzenzekela yebhentshi yovavanyo. Xa ivula kwaye ivala ivalvu ngokukhawuleza, akukho shock isebenza.
Ulwakhiwo lwevalvu yebhola
Isixhobo sokusebenza sivalwe ngokuthembekileyo kumacala omabini.
Xa ivuliwe ngokupheleleyo kwaye ivaliwe ngokupheleleyo, umphezulu wokutywina webhola kunye nesihlalo sevalvu ziyahlukaniswa kwi-medium, ngoko ke i-medium edlula kwivalvu ngesantya esiphezulu ayizukubangela ukukhukuliseka komphezulu wokutywina.
Ngenxa yesakhiwo esincinci kunye nobunzima obuphantsi, ingathathwa njengesakhiwo sevalvu esifanelekileyo kwiinkqubo zemidiya ye-cryogenic.
Umzimba wevalvu ulingana, ingakumbi xa isakhiwo somzimba wevalvu sidityanisiwe, esinokumelana kakuhle noxinzelelo oluvela kumbhobho.
Isiqwenga sokuvala sinokumelana nomahluko ophezulu woxinzelelo xa sivaliwe.
Ivalvu yebhola enomzimba odibeneyo ngokupheleleyo inokungcwatywa ngqo emhlabeni, ukuze iindawo zangaphakathi zevalvu zingagqwali, kwaye ubomi benkonzo obuphezulu bufikelele kwiminyaka engama-30. Yeyona valve ifanelekileyo kwimibhobho yeoyile negesi yendalo.
Ngenxa yokuba ivalvu yebhola inezi nzuzo zingasentla, ineendlela ezahlukeneyo zokusetyenziswa. Ivalvu yebhola ingasetyenziswa: indlela eqhelekileyo isuka kwi-8mm ukuya kwi-1200mm.
Uxinzelelo oluqhelekileyo luqala kwi-vacuum ukuya kwi-42MPa kwaye ubushushu bokusebenza buqala kwi--204°C ukuya kwi-815°C.