I-valve njengethuluzi izelwe izinkulungwane zeminyaka

Ivalvuiyithuluzi elisetshenziswa ekudlulisweni nasekulawulweni kwegesi kanye noketshezi okungenani iminyaka eyinkulungwane yomlando.

Njengamanje, ohlelweni lwamapayipi amanzi, ivalvu elawulayo iyisici sokulawula, futhi umsebenzi wayo oyinhloko ukuhlukanisa imishini kanye nohlelo lwamapayipi, ukulawula ukugeleza, ukuvimbela ukugeleza emuva, ukulawula nokukhipha ingcindezi. Njengoba kubaluleke kakhulu ukukhetha ivalvu elawulayo efaneleka kakhulu ohlelweni lwamapayipi, kubaluleke kakhulu futhi ukuqonda izici zevalvu kanye nezinyathelo kanye nesisekelo sokukhetha ivalvu.

Ukucindezela okujwayelekile kwe-valve

Ingcindezi ejwayelekile yevalvu ibhekisela ekwakhiweni kwengcindezi enikeziwe ehlobene namandla omshini wezingxenye zamapayipi, okungukuthi, ingcindezi yokusebenza evumelekile yevalvu ekushiseni okucacisiwe, ehlobene nezinto zevalvu. Ingcindezi yokusebenza ayifani, ngakho-ke, ingcindezi ejwayelekile iyipharamitha encike ezintweni zevalvu futhi ihlobene nokushisa kokusebenza okuvumelekile kanye nengcindezi yokusebenza kwezinto.

I-valve iyisakhiwo ohlelweni lokujikeleza kwegazi oluphakathi nendawo noma uhlelo lokucindezela, olusetshenziselwa ukulungisa ukugeleza noma ingcindezi ye-medium. Eminye imisebenzi ihlanganisa ukuvala noma ukuvula i-media, ukulawula ukugeleza, ukushintsha indlela yokugeleza kwe-media, ukuvimbela ukugeleza kwe-media emuva, kanye nokulawula noma ukukhipha ingcindezi.

Le misebenzi ifinyelelwa ngokulungisa indawo yokuvalwa kwevalvu. Lokhu kulungiswa kungenziwa ngesandla noma ngokuzenzakalelayo. Ukusebenza ngesandla kuhlanganisa nokusebenza kokulawula idrayivu ngesandla. Amavalvu asebenza ngesandla abizwa ngokuthi amavalvu enziwe ngesandla. Ivalvu evimbela ukugeleza emuva ibizwa ngokuthi ivalvu yokuhlola; leyo elawula ingcindezi yokukhulula ibizwa ngokuthi ivalvu yokuphepha noma ivalvu yokukhulula ukuphepha.

Kuze kube manje, imboni yama-valve ikwazile ukukhiqiza uhla oluphelele lwe-amavalvu esango, amavalvu embulunga, amavalvu e-throttle, amavalvu epulagi, amavalvu ebhola, amavalvu kagesi, amavalvu okulawula i-diaphragm, amavalvu okuhlola, amavalvu okuphepha, amavalvu okunciphisa ingcindezi, izicupho zomusi kanye namavalvu okuvala okuphuthumayo. Imikhiqizo yamavalvu yezigaba ezingu-12, amamodeli angaphezu kuka-3000, kanye nemininingwane engaphezu kuka-4000; ingcindezi yokusebenza ephezulu ingu-600MPa, ububanzi obuphezulu obujwayelekile bungu-5350mm, izinga lokushisa lokusebenza eliphakeme lingu-1200℃, izinga lokushisa eliphansi lokusebenza lingu-196℃, futhi indawo esetshenziswayo iwuManzi, umusi, uwoyela, igesi yemvelo, imithombo enamandla yokugqwala (njenge-nitric acid egxilile, i-sulfuric acid egxilile ephakathi, njll.).

Naka ukukhetha kwama-valve:

1. Ukuze kuncishiswe ukujula kokumboza inhlabathi kwepayipi,ivalvu yebhabhathanengokuvamile ikhethwa njengepayipi elinobubanzi obukhulu; ububi obukhulu bevalvu yevemvane ukuthi ipuleti levemvane lihlala engxenyeni ethile yamanzi, okwandisa ukulahlekelwa kwekhanda elithile;

2. Amavalvu avamile afaka phakathiamavalvu ebhabhathane, amavalvu esango, ama-valve ebhola nama-valve epulaki, njll. Uhlu lwama-valve asetshenziswa kunethiwekhi yokuphakelwa kwamanzi kufanele lucatshangelwe ekukhetheni.

3. Ukuphonswa nokucubungula ama-ball valve nama-plug valve kunzima futhi kuyabiza, futhi ngokuvamile kufaneleka kumapayipi amancane naphakathi ububanzi. I-ball valve ne-plug valve zigcina izinzuzo ze-single gate valve, ukumelana nokugeleza kwamanzi okuncane, ukuvalwa okuthembekile, isenzo esiguquguqukayo, ukusebenza okulula nokugcinwa. I-plug valve nayo inezinzuzo ezifanayo, kodwa ingxenye yokudlulisa amanzi ayiyona indilinga ephelele.

4. Uma ingenawo umthelela omkhulu ekujuleni kwenhlabathi emboziwe, zama ukukhetha ivalvu yesango; ukuphakama kwevalvu yesango kagesi ivalvu yesango evundlile enobubanzi obukhulu kuthinta ukujula kokumboza inhlabathi kwepayipi, kanti ubude bevalvu yesango evundlile enobubanzi obukhulu kwandisa indawo evundlile ehlalwa yipayipi futhi kuthinta ukuhlelwa kwamanye amapayipi;

5. Eminyakeni yamuva nje, ngenxa yokuthuthukiswa kobuchwepheshe bokubumba, ukusetshenziswa kokubumba isihlabathi se-resin kungagwema noma kunciphise ukucutshungulwa kwemishini, ngaleyo ndlela kuncishiswe izindleko, ngakho-ke ukusebenza kwama-ball valve asetshenziswa kumapayipi amakhulu kufanelekile ukuhlola. Ngokuphathelene nomugqa wokuhlukanisa ngobukhulu be-caliber, kufanele ucatshangelwe futhi uhlukaniswe ngokwesimo esithile.