PV48 vacuum breaking valve
Type: nuclear power vacuum breaking valve
Muenzaniso: ZKPHF41F-150 150Lb, ZKPHF21F-300 300Lb
Nominal Diameter: DN 20-50
Chigadzirwa chacho chinoshandiswa kune AP1000 unit semidziyo isina kunaka kudzvanya kusveta kudzivirira yakawandisa yakaderera kudzvinyirira kubva mukukuvadza michina.
1.Ne spring type vacuum decompression, iyo vacuum breaking valve inoratidzira nyore nguva dzose kudzvinyirira uye kugadzirisa uye nyore kuisa. Ivhavha inogadzirwa zvichienderana nekumanikidzwa kwemazinga uye dhizaini yayo yakakura kupfuura yakanyanya kushanda nesimba pasi pekushanda kwezvakatipoteredza tembiricha. Ivhavhavha yepakati iri kuvhura nekuvhara chikamu chevharuvhu uye O-mhando seal ring inoiswa mugororo repakati pevharuvhu kuita chikamu chekuisa chisimbiso chepakati pevharuvhu. Kana vharuvhu ichivharira, O-mhando chisimbiso mhete contacts chisimbiso pamusoro pechigaro vharafu; kana vharafu ichisvetuka uye ichibuda, O-mhando seal ring inosiya yakavharika pamusoro pechigaro chevharuvhu. Kana iyo yepakati yevharuvhu ichivhuvhuta kumashure, chitubu chinotambanudzwa uye chikamu chekuvhura nekuvhara chinokwira pamwe negomba rinotungamira rechigaro chevharuvhu; kana simbi yevharuvhu ichivhurika, chitubu chinodzvanya uye chikamu chekuvhura nekuvhara chinodzika pasi neburi rinotungamira rechigaro chevharuvhu.
2.Ivhavha yekuputsika kwevhavha, vheji yemagetsi, haidi kuwedzera motokari kana ichiiswa mukushanda. Pakushanda kwakajairika, simba rakabatana rechirimo nepakati rinoitwa pavharuvha disc inotsikirira dhisiki yevharuvhu yakananga kuchigaro chevharuvhu kuita kuti chisimbiso chibatirire uye chisimbiso; apo dzvinyiriro yepakati inodonha kune yakatsanangurwa vacuum kukosha (kureva kuti kudzvanya kwakashata kusvika kumisikidzwa), chitubu chinodzvanywa, vharafu disc inosiya chigaro chevharuvhu, mhepo yekunze inopinda uye system pressure inowedzera; apo system pressure inokwira kuhukoshi hwekushanda, chitubu chinodhonza dhisiki yevharuvhu yakananga kuchigaro chevharuvhu uye chisimbiso chepamusoro chinobatirira zvakare kuti chidzokere kune yakajairika kushanda mamiriro.
