Ama-valve esangofuthiizivalo uvemvaneasetshenziswa njengamaswishi ukulawula izinga lokugeleza ekusetshenzisweni kwamapayipi. Yiqiniso, kusekhona izindlela ekukhethweni kwama-butterfly valves nama-valve esango.
Kunethiwekhi yamapayipi okuhambisa amanzi, ukuze kuncishiswe ukujula kokumbozwa kwenhlabathi yepayipi, ububanzi obujwayelekile bepayipi elikhulu bufakwe i-valve butterfly, futhi uma ukujula kokumbozwa kwenhlabathi kungabalulekile, zama ukukhetha i-valve yesango, kodwa intengo ye-valve yesango yokucaciswa okufanayo iphakeme kunentengo ye-valve butterfly. Ngokuqondene nomugqa wokuklama wezinga, indawo ngayinye kufanele icatshangwe ngokwesisekelo secala ngalinye. Ngokombono wokusetshenziswa kweminyaka eyishumi edlule, ukwehluleka kwe-valve butterfly kuphakeme kunaleyoi-valve yesango, ngakho-ke kufanelekile ukunaka ukukhulisa ububanzi bokusetshenziswa kwe-valve yesango uma izimo zivuma.
Eminyakeni yamuva, abakhiqizi abaningi bama-valve basekhaya baye basungula futhi balingisa ama-valve esango elithambile, anezici ezilandelayo kune-wedge yendabuko noma ama-valve esango eliphindwe kabili:
Ii-valveumzimba kanye nebhonethi yevalve yesango lophawu oluthambile ziphonswa ngendlela yokunemba, eyakhiwe ngesikhathi esisodwa, ngokuyisisekelo ayifakwanga ngomshini, futhi ayisebenzisi izindandatho zethusi ezivala uphawu, zonga izinsimbi ezingenayo ayoni.
Awukho umgodi phansii-valve yesango elithambile, akukho ukuqoqwa kwe-slag, kanye nezinga lokwehluleka kwe-i-valve yesangoukuvula nokuvala kuphansi.
Ipuleti le-valve elifakwe uphawu elithambile linosayizi ofanayo futhi lishintshashintsha kakhulu.
Ngakho-ke, i-valve yesango elithambile izoba ifomu imboni yokuhlinzeka ngamanzi ejabulela ukukwamukela. Njengamanje, ububanzi be-valve yesango elithambile ekhiqizwa eChina buyi-1500mm, kodwa ububanzi babakhiqizi abaningi buphakathi kuka-80-300mm, futhi kusenezinkinga eziningi ohlelweni lokukhiqiza lwasekhaya. Ingxenye eyinhloko ye-valve yesango lophawu oluthambile iyipuleti ye-valve enerabha enerabha, futhi izidingo zobuchwepheshe zepuleti le-valve elinenjoloba ziphakeme, futhi akubona bonke abakhiqizi bakwamanye amazwe abangakwazi ukuyifinyelela, futhi ngokuvamile ithengwa futhi ihlanganiswe efektri enokwethenjelwa. izinga.
I-copper nut block yophawu lwasekhaya oluthambilei-valve yesangoishumekiwe futhi ilengiswe ngaphezu kwepuleti le-valve yenjoloba, efana nesakhiwo se-valve yesango, futhi ulwelwesi lwenjoloba lwepuleti le-valve kulula ukuluxebuka ngenxa yokungqubuzana okusebenzayo kwebhulokhi yamantongomane. Kuvalvu yesango lophawu oluthambile lwenkampani yangaphandle, ibhulokhi yamantongomane e-copper ishunyekwa enqameni enerabha enerabha ukuze yakheke yonke, enqoba lokhu kushiyeka okungenhla, kodwa ukugxila kwenhlanganisela yekhava yevalvu kanye nomzimba wevalvu kuphezulu. .
Kodwa-ke, lapho uvula futhi uvala i-valve yesango elithambile, akufanele ivalwe kakhulu, uma nje umphumela wokumisa amanzi ufinyelelwa, ngaphandle kwalokho akulula ukuvula noma ukukhipha uhlaka lwenjoloba. Umkhiqizi we-valve, ekuhlolweni kokuhlolwa kwengcindezi ye-valve, ukusetshenziswa kwe-torque wrench ukulawula izinga lokuvala, njengama-opharetha we-valve yenkampani yamanzi kufanele futhi alandele le ndlela yokuvula nokuvala.
Uyini umehluko phakathi kokusetshenziswa kweizivalo uvemvanefuthiama-valve esango?
Ngokusho komsebenzi nokusetshenziswa kwe-valve yesango kanye ne-butterfly valve, ukumelana nokugeleza kwe-valve yesango kuncane, ukusebenza kokuvala kuhle, ngoba isiqondiso sokugeleza kwepuleti le-valve yesango kanye ne-medium i-engeli eqondile, uma i-valve yesango. ayikho endaweni yokushintsha ipuleti le-valve, ukukhuhla okuphakathi kwepuleti le-valve kwenza ipuleti le-valve lidlidlize, futhi kulula ukulimaza isivalo se-valve yesango.
I-Butterfly valve, eyaziwa nangokuthi i-flap valve, iyisakhiwo esilula se-valve elawulayo, engasetshenziselwa ukukhanyisa/ukuvala i-valve yephayiphi eliphakathi nendawo yovemvane ibhekisela engxenyeni yokuvala (idiski noma ipuleti levemvane) njenge i-disc, ezungeza i-valve shaft ukuze ifinyelele ukuvulwa nokuvala uhlobo lwe-valve, i-valve ingasetshenziswa ukulawula ukugeleza kwezinhlobo ezahlukene zoketshezi ezifana nomoya, amanzi, umusi, imidiya ehlukahlukene egqwalayo, udaka, amafutha, uketshezi. imidiya yensimbi ne-radioactive. Idlala kakhulu indima yokusika kanye nokuphonseka epayipini. I-valve uvemvane evula futhi evala ingxenye ipuleti uvemvane okumise okwediski, elizungeza i-eksisi yalo emzimbeni valve, ukuze kuzuzwe injongo yokuvula nokuvala noma ukulungisa.
Ipuleti yevemvane iqhutshwa yisiqu se-valve, futhi uma iphenduka i-90 °, ingaqedela ukuvulwa nokuvala. Ngokushintsha i-engeli yokuchezuka yovemvane, izinga lokugeleza kwe-medium lingalawulwa.
Izimo zokusebenza nendawo:Butterfly valveilungele ukuthutha amapayipi emithombo yemithombo yezindaba ebolayo nengagqwali ezinhlelweni zobunjiniyela njengeziko, igesi yamalahle, igesi yemvelo, igesi ye-petroleum ewuketshezi, igesi yedolobha, umoya oshisayo nobandayo, ukuncibilika kwamakhemikhali nokuvikelwa kwemvelo kokuphehla ugesi, ukuhlinzekwa kwamanzi okwakha kanye i-drainage, njll., futhi isetshenziselwa ukulawula nokunqamula ukuhamba kwemidiya.
I-valve yesango (i-valve yesango) iyingxenye yokuvula nokuvala yesango, isiqondiso sokuhamba kwesango sibhekene nesiqondiso soketshezi, i-valve yesango ingavulwa ngokugcwele futhi ivalwe, ukungakhululeki kwemingcele yomnyango kukhona. ehlukile, ngokuvamile i-5 °, lapho izinga lokushisa eliphakathi lingekho phezulu, liyi-2 ° 52′. Ukuze kuthuthukiswe ukwenziwa kwayo futhi kulungiswe ukuchezuka kwe-engeli engaphezulu yokuvala ngesikhathi sokucubungula, lolu hlobo lwenqama lubizwa ngenqama enwebekayo.
Lapho i-i-valve yesangoivaliwe, indawo yokuvala ingancika kuphela ekucindezelweni okuphakathi ukuze uvale, okungukuthi, ukuthembela kuphela ekucindezelweni okuphakathi ukuze ucindezele indawo yokuvala yenqama esihlalweni se-valve ngakolunye uhlangothi ukuze uqinisekise ukuvalwa kwendawo yokuvala, okungukuzivala. Amavalvu amaningi esango avalwa ngenkani, okungukuthi, lapho ivalvu ivaliwe, inqama kufanele icindezelwe ngenkani esihlalweni sevalvu ngamandla angaphandle ukuze kuqinisekiswe ukucinana kwendawo yokuvala.
Imodi yokunyakaza: Ipuleti lesango levalvu yesango lihamba ngendlela eqondile nesiqu se-valve, ebizwa nangokuthi i-valve yesango lenduku evulekile. Ngokuvamile kuba nentambo ye-trapezoidal entweni yokuphakamisa, ngokusebenzisa nati phezulu kwe-valve kanye ne-groove eqondisayo emzimbeni we-valve, ukunyakaza okujikelezayo kuguqulwa kube ukunyakaza okuqondile, okungukuthi, i-torque yokusebenza iguqulwa ibe i-thrust yokusebenza. Lapho i-valve ivuliwe, lapho ukuphakama kwenqama kufana nezikhathi ezingu-1: 1 ububanzi be-valve, ukugeleza koketshezi akuvimbeki ngokuphelele, kodwa lesi sikhundla asikwazi ukuqapha ngesikhathi sokusebenza. Ekusetshenzisweni kwangempela, imakwa nge-vertex ye-stem, okungukuthi, isikhundla esingakwazi ukuvulwa, njengendawo yayo evulekile ngokugcwele. Ukuze kulandelwe isenzakalo sokukhiya sokushintsha kwezinga lokushisa, ngokuvamile ivulwa endaweni ephezulu, bese ibuyiselwa emuva ku-1/2-1 ukujika njengendawo yevalve evuleke ngokugcwele. Ngakho-ke, indawo evuleke ngokugcwele yevalvu inqunywa indawo yenqama (okungukuthi, unhlangothi). Enye i-valve stem nut itholakala esangweni, futhi isondo lesandla liyazungeza ukuze lishayele isiqu se-valve ukuze sijikeleze, futhi ipuleti lesango liyaphakanyiswa, le valve ibizwa ngokuthi i-rotary rod gate valve noma i-valve yesango lenduku emnyama.
Isikhathi sokuthumela: Aug-22-2024
