I-valve yesangofuthiuvemvane valvezombili zidlala indima yokushintsha kanye nokulawula ukugeleza ekusetshenzisweni kwamapayipi.Kodwa kunezindlela ekukhetheni ama-valve emvemvane nama-valve esango.
Kunethiwekhi yokuphakelwa kwamanzi, ukuze kwehliswe ukujula kwesimbozo senhlabathi yepayipi, i-valve uvemvane ngokuvamile ikhethelwa amapayipi amakhulu obubanzi.Uma inomthelela omncane ekujuleni kwenhlabathi yokumboza, zama ukukhetha i-valve yesango, kodwa intengo ye-valve yesango yokucaciswa okufanayo iphakeme kune-valve ye-butterfly.Ngokuqondene nomugqa wokuklama wezinga, kufanele ucatshangelwe ngokuya ngesimo esithile sendawo ngayinye.Ngokombono wokusetshenziswa eminyakeni eyishumi edlule, izinga lokuhluleka kwamavalve ovemvane liphakeme kunalelo lamavalvu esango, ngakho kufanelekile ukunakwa ukwandisa ububanzi bokusetshenziswa kwamavalvu esango lapho izimo zivuma.
Mayelana nama-valve esango Eminyakeni yamuva, abakhiqizi abaningi bama-valve baye basungula futhi balingisa ama-valve esango ane-soft-sealed.Uma kuqhathaniswa ne-wedge yendabuko noma ama-valve asesangweni amabili ahambisanayo, le valve yesango inezici ezilandelayo:
1. Umzimba we-valve kanye nebhonethi ye-valve yesango elivalwe ngokuthambile ziphonswa ngendlela yokusakaza enembayo, eyakhiwe ngesikhathi esisodwa, ngokuyisisekelo ayidingi ukucutshungulwa ngomshini, ayisebenzisi indandatho yethusi evalekayo, futhi ilondoloza izinsimbi ezingenayo insimbi. .
2. Awukho umgodi ngaphansi kwe-valve yesango elivaliwe elithambile, futhi akukho-slag eqoqwe, futhi izinga lokuhluleka kokuvula nokuvalwa kwe-valve yesango liphansi.
3. Ipuleti levalvu elithambile elinerabha enomugqa linosayizi ofanayo kanye nokushintshashintsha okuqinile.
Ngakho-ke, i-valve yesango lokuvala uphawu elithambile izoba ifomu imboni yokuhlinzeka ngamanzi ezimisele ukulamukela.Njengamanje, ububanzi bama-valve esango avaliwe akhiwe e-China bungafika ku-1500mm, kodwa ububanzi babakhiqizi abaningi buphakathi kuka-80-300mm.Ziseningi izinkinga ohlelweni lokukhiqiza ekhaya.Ingxenye eyinhloko ye-valve yesango lokuvala uphawu oluthambile yipuleti le-valve enerabha, futhi izidingo zobuchwepheshe zepuleti le-valve eline-raber-lined ziphakeme ngokuqhathaniswa, okungebona bonke abakhiqizi bangaphandle abangafinyelela, futhi ngokuvamile zithengwa futhi zihlanganiswe kubakhiqizi abanokwethenjelwa. izinga.
Ibhulokhi yamantongomane ethusi wevalvu yesango elithambile yasekhaya ishunyekwe ngaphezu kwepuleti levalvu elinerabha, elifana nesakhiwo sevalvu yesango.Ngenxa yokungqubuzana okususwayo kwebhulokhi yamantongomane, ulwelwesi lwerabha lwepuleti levalvu luxebuka kalula.Ezinye izinkampani zakwamanye amazwe zishumeka ibhulokhi yamantongomane ethusi esangweni elinenjoloba ukuze zakhe lonke, elinqoba lezi zinkinga ezingenhla, kodwa ukugxila kwenhlanganisela yekhava yevalvu kanye nomzimba wevalvu kuphezulu uma kuqhathaniswa.
Kodwa-ke, lapho uvula futhi uvala i-valve yokuvala isango elithambile, akufanele ivalwe kakhulu, uma nje umphumela wokumisa amanzi ufinyelelwa, ngaphandle kwalokho akulula ukuvula noma uhlaka lwenjoloba luhlutshiwe.Umkhiqizi wamavalvu usebenzisa isikrufu se-torque ukulawula izinga lokuvala ngesikhathi sokuhlolwa kwengcindezi yevalvu.Njengomqhubi we-valve wenkampani yamanzi, le ndlela yokuvula nokuvala kufanele futhi ilingiswe.
I-valve yesango isango lokuvula nokuvala, isiqondiso sokunyakaza kwesango sibhekene nesiqondiso soketshezi, futhi i-valve yesango ingavulwa ngokugcwele futhi ivalwe ngokugcwele.Ukuze uthuthukise ukwenziwa kwayo futhi wenze ukuchezuka kwe-engeli yendawo yokuvala uphawu ngesikhathi sokucubungula, leli sango libizwa ngokuthi isango elinwebekayo.
Lapho i-valve yesango ivaliwe, indawo yokuvala ingancika kuphela ekucindezelweni okuphakathi ukuze ivalwe, okungukuthi, incike kuphela ekucindezelweni okuphakathi ukuze ucindezele indawo yokuvala yesango esihlalweni se-valve ngakolunye uhlangothi ukuze uqinisekise ukuvala indawo evalayo, ezivalekayo.Ama-valve amaningi esango avaliwe ngenkani, okungukuthi, lapho i-valve ivaliwe, isango kufanele liphoqelelwe ngokumelene nesihlalo se-valve ngamandla angaphandle ukuze kuqinisekiswe ukuqina kwendawo yokuvala.
Imodi yokunyakaza: Isango levalvu yesango lihamba ngendlela eqondile nesiqu se-valve, ebizwa nangokuthi i-valve yesango lesiqu esikhuphukayo.Ngokuvamile, kunemicu ye-trapezoidal ku-lift rod.Ngenati elingaphezulu kwevalvu kanye negroove eqondisayo emzimbeni we-valve, ukunyakaza okujikelezayo kuguqulwa kube ukunyakaza okulandelanayo, okungukuthi, i-torque yokusebenza iguqulwa ibe i-thrust yokusebenza.Lapho i-valve ivuliwe, lapho ukuphakama kokuphakama kwesango kulingana no-1: 1 izikhathi ububanzi be-valve, isiteshi samanzi singenasici ngokuphelele, kodwa lesi sikhundla asikwazi ukuqapha ngesikhathi sokusebenza.Ekusetshenzisweni kwangempela, i-apex ye-valve stem isetshenziswa njengesibonakaliso, okungukuthi, isikhundla lapho singakwazi ukuvulwa khona, njengendawo yayo evulekile ngokugcwele.Ukuze ucabangele into yokuvala ngenxa yezinguquko zokushisa, ngokuvamile ivulwa endaweni ephezulu, bese ibuyela ku-1 / 2-1 ukuphenduka, njengesikhundla se-valve evulekile ngokugcwele.Ngakho-ke, indawo evuleke ngokugcwele ye-valve inqunywa ngokusho kwendawo yesango (okungukuthi, unhlangothi).Enye i-valve stem nut isethwe esangweni, futhi ukuzungezisa kwesondo lesandla kushayela isiqu se-valve ukuze sijikeleze, okwenza isango liphakame.Lolu hlobo lwe-valve lubizwa ngokuthi i-valve yesango ye-stem ejikelezayo noma i-valve yesango elimnyama.
Uyini umehluko phakathi kwe-valve ye-butterfly ne-valve yesango?
Ngokusho komsebenzi nokusetshenziswa kwe-valve yesango kanye ne-butterfly valve, i-valve yesango inokumelana nokugeleza okuncane nokusebenza okuhle kokuvala.Ngenxa yokuthi ukugeleza kwepuleti le-valve yesango kanye nendawo emaphakathi ku-engeli eqondile, uma i-valve yesango ingashintshwanga endaweni yayo ku-valve plate, ukukhuhla okuphakathi nendawo epuleti levalvu kuzokwenza ipuleti levalvu lidlidlizele., Kulula ukulimaza uphawu lwe-valve yesango.
I-Butterfly valve, eyaziwa nangokuthi i-flap valve, iwuhlobo lwevalve elawulayo enesakhiwo esilula.I-valve yovemvane engase isetshenziselwe ukulawula lapho ucisha ipayipi lokucindezela okuphansi kusho ukuthi ilungu elivalayo (idiski noma ipuleti) liyidiski, elizungeza i-valve shaft ukuze lifinyelele ukuvuleka nokuvala.Ivalvu engasetshenziswa ukulawula ukugeleza kwezinhlobo ezahlukene zoketshezi olunjengomoya, amanzi, isitimu, imidiya eyonakalisayo ehlukahlukene, udaka, uwoyela, insimbi ewuketshezi kanye nemidiya ekhipha imisebe.Idlala kakhulu indima yokusika kanye nokuphonseka epayipini.I-valve uvemvane evula futhi evala ingxenye iyipuleti uvemvane okumise okwediski, elizungeza i-eksisi yalo emzimbeni wevalvu ukufeza injongo yokuvula nokuvala noma ukulungisa.
Ipuleti uvemvane lishayelwa isiqu valve.Uma ijika ku-90°, ingaqeda ukuvula nokuvala okukodwa.Ngokushintsha i-deflection angle ye-disc, ukugeleza kwe-medium kungalawulwa.
Izimo zokusebenza nemithombo yezindaba: Amavalvu ovemvane afanele ukudlulisa uketshezi oluhlukahlukene olubolayo nolungagqwali ezinhlelweni zobunjiniyela njengomkhiqizi, igesi yamalahle, igesi yemvelo, igesi ye-petroleum ewuketshezi, igesi yedolobha, umoya oshisayo nobandayo, ukuncibilika kwamakhemikhali nokuvikelwa kwemvelo kokuphehla amandla. , ukwakha amanzi kanye ne-drainage, njll. Epayipini le-medium, isetshenziselwa ukulungisa nokusika ukugeleza kwe-medium.
Isikhathi sokuthumela: Sep-28-2022