Umthelela wezinga lokushisa nokucindezela ekusebenzeni kwevalvu uvemvane uhlanganisa ukusebenza kokuvala, amandla esakhiwo, ukusebenza kwevalvu uvemvane, njll.
Inqubo yokuhlanganisa i-valve uvemvane iyinqubo elula kodwa eyinkimbinkimbi.Kuphela lapho isinyathelo ngasinye senziwa ngokucophelela lapho i-valve yevemvane ingakwazi ukusebenza ngokujwayelekile.Okulandelayo incazelo emfushane yenqubo yokuhlanganisa i-wafer butterfly valve.
Ukulungiswa kwe-valve ye-Butterfly kungase kuhluke kuye ngohlobo lomonakalo noma ukwehluleka.Ingahlukaniswa ngokulungiswa, ukulungiswa okujwayelekile kanye nokukhanda okunzima.
Isikhathi sokuvula nokuvala se-valve ye-butterfly sihlobene nesivinini sesenzo se-actuator, ukucindezela kwamanzi nezinye izici.
t=(90/ω)*60,
Ivalvu yesango ivalvu esetshenziselwa UKUVULA NOKUVALA ukugeleza koketshezi epayipini.Ivula noma ivale i-valve ngokuphakamisa isango ukuvumela noma ukukhawulela ukugeleza koketshezi.Kufanele kugcizelelwe ukuthi i-valve yesango ayikwazi ukusetshenziselwa ukulawulwa kokugeleza.
Kunezinhlobo eziningi zama-valve e-butterfly disc ngokuya ngokusetshenziswa kwama-valve ovemvane, osayizi abavame kakhulu be-butterfly valve esitokisini basuka ku-DN50-DN600, ngakho-ke sizokwethula ama-valve discs ngokuya ngosayizi osetshenziswa njalo.
Uyini umehluko, izinzuzo kanye nokubi kwe-valve uvemvane ne-valve yebhola?Kulesi sihloko, siyihlaziya kusukela ezicini zesakhiwo, isimiso, ububanzi bokusetshenziswa nokubeka uphawu.
Imboni yamavalvu yaseChina ibilokhu ingenye yezimboni ezihamba phambili emhlabeni.Kule makethe enkulukazi, yiziphi izinkampani ezigqamayo futhi eziba ngabayishumi abahamba phambili embonini yamavalvu yaseChina?
Ngokuyinhloko kuncike ezingeni lokuthulisa.Ama-valve okuhlola ukuthulisa aqeda kuphela umsindo futhi anciphise umsindo.Ama-valve okuhlola athule angavikela futhi athulise ngokuqondile umsindo lapho esetshenziswa.
ingcindezi yokuhlola > ingcindezi yokuzisholo > ingcindezi yokuklama > ingcindezi yokusebenza.
Isimiso sokusebenza se-valve uvemvane kagesi ukushayela idivayisi yokudlulisela ngenjini ukuze ujikeleze ipuleti le-valve, ngaleyo ndlela uguqule indawo yesiteshi soketshezi emzimbeni we-valve futhi ulawule ukugeleza.
Ngokophenyo nokuhlaziya, ukugqwala kungenye yezinto ezibalulekile ezidala umonakalo kumavalve ovemvane.
Ngakho-ke, ukwelashwa kwe-surface coating yomzimba we-valve kanye nepuleti ye-valve kuyindlela yokuvikela engabizi kakhulu ngokumelene nokugqwala endaweni yangaphandle.
Izigxivizo eziqinile zenziwe ngensimbi, njengama-gaskets ensimbi, izindandatho zensimbi, njll., futhi ukuvalwa kutholakala ngokungqubuzana phakathi kwezinsimbi.Izigxivizo ezithambile zenziwe ngezinto ezinwebekayo, njengerabha, i-PTFE, njll.
Ama-valve amaningi aseShayina athunyelwa emazweni ahlukahlukene emhlabeni jikelele, bese kuthi amakhasimende amaningi angaphandle akuqondi ukubaluleka kwenombolo ye-valve yaseChina, namuhla sizokuyisa ekuqondeni okuthile, ngethemba kungasiza amakhasimende ethu.
Ukukhetha phakathi kwalezi zinhlobo ezimbili zamavalvu ovemvane kuncike ezidingweni ezithile zohlelo lokusebenza, okuhlanganisa izithiyo zesikhala, izidingo zengcindezi, imvamisa yokulungiswa, nokucatshangelwa kwesabelomali.
Ngokwefomu lokuxhumeka kwe-flange, umzimba we-valve uvemvane uhlukaniswe ikakhulukazi: uhlobo lwe-wafer A, uhlobo lwe-wafer LT, i-flange eyodwa, i-flange ephindwe kabili, i-flange yohlobo lwe-U.
I-wafer yohlobo A iwukuxhuma kwembobo okungeyona imicu, uhlobo lwe-LT 24" ngaphezu kokucaciswa okukhulu kuvame ukusebenzisa amandla angcono womzimba we-valve yohlobo lwe-U ukwenza uxhumano olucushiwe, isiphetho sepayipi sidinga ukusebenzisa uhlobo lwe-LT.
I-valve yebhola emise okwe-V inembobo emise okwe-V ohlangothini olulodwa lwe-hemispherical valve core.
Ukuvulwa kwesiteshi sokugeleza kwe-valve yebhola emise okwe-O kuyindilinga, ukumelana nokugeleza kwayo kuncane, futhi isivinini sokushintsha siyashesha.
Esihlokweni esandulele, sikhulume ngama-valve esango kanye nembulunga, namuhla siqhubekela phambili kuma-butterfly valves kanye nama-valve okuhlola, avame ukusetshenziselwa ukwelashwa kwamanzi.
I-valve iyithuluzi lokulawula lepayipi eliwuketshezi.Umsebenzi wayo oyisisekelo ukuxhuma noma ukunqamula ukujikeleza kwephayiphi eliphakathi, ukushintsha isiqondiso sokugeleza kwe-medium, ukulungisa ukucindezela nokugeleza kwe-medium, bese usetha ama-valve ahlukahlukene, amakhulu namancane, ohlelweni.Isiqinisekiso esibalulekile sokusebenza okujwayelekile kwepayipi nemishini.
Ama-coefficients okugeleza kwevalvu yokulawula (i-Cv, i-Kv no-C) yezinhlelo zamayunithi ahlukene ama-valve okulawula ngaphansi kokucindezela okuhlukile okuhleliwe, umthamo wamanzi ajikelezayo eyunithi yesikhathi lapho i-valve yokulawula ivuleke ngokugcwele, i-Cv, i-Kv ne-C kukhona. ubuhlobo phakathi kweCv = 1.156Kv, Cv = 1.167C.Lesi sihloko sabelana ngencazelo, iyunithi, ukuguqulwa kanye nenqubo yokutholwa okuphelele kwe-Cv, Kv kanye no-C.
Isihlalo se-valve siyingxenye ekhiphekayo ngaphakathi kwe-valve, indima eyinhloko ukusekela ipuleti le-valve livuleke ngokugcwele noma livaleke ngokugcwele, futhi kwakha i-vice yokuvala.Ngokuvamile, ububanzi besihlalo bulingana nobukhulu be-valve.Izinto zesihlalo se-Butterfly valve zibanzi kakhulu, izinto ezivame ukusetshenziswa ziyi-EPDM ethambile, i-NBR, i-PTFE, kanye nensimbi eqinile evala uphawu ye-carbide.Okulandelayo sizokwethula ngamunye ngamunye...
I-valve yokuhlola ibhekisela ezingxenyeni ezivulayo nezivalayo zevalvu eyindilinga futhi zithembele esisindweni sazo kanye nengcindezi yemidiya ukukhiqiza isenzo sokuvimba ukugeleza emuva okuphakathi kwe-valve.I-valve yokuhlola i-valve ezenzakalelayo, eyaziwa nangokuthi i-valve yokuhlola, i-valve yendlela eyodwa, i-valve engabuyi noma i-valve yokuhlukanisa.
Ama-valve okuhlola ama-waferaziwa nangokuthi ama-backflow valves, ama-backstop valves, nama-backpressure valves.Lezi zinhlobo zama-valve zivuleka ngokuzenzakalelayo futhi zivalwe ngamandla akhiqizwa ukugeleza kwe-medium ngokwayo epayipini, eyingxenye ye-automatic valve.
I-valve ye-Butterfly ngenxa yobukhulu bayo obuncane kanye nesakhiwo esilula, isiphenduke enye yama-valve asetshenziswa kakhulu embonini, asetshenziswa kakhulu amandla kagesi ngamanzi, ukuchelela, ukwakhiwa kwamanzi kanye nokukhipha amanzi, ubunjiniyela bakamasipala nezinye izinhlelo zamapayipi, ezisetshenziselwa ukunqamula noma ukulamula ukugeleza kokugeleza kwemidiya ezungezayo ozokusebenzisa.Khona-ke i-valve ye-butterfly ekusetshenzisweni kwezinkinga ezidinga ukunakwa nezixazululo kulokho, namuhla sizobe siqondile ukuqonda.
Amavalvu esango lophawu oluthambile namavalvu esango lophawu oluqinile angamadivayisi avame ukusetshenziswa okulawula nokunqanda ukugeleza, womabili asebenza kahle ngokuvala, izinhlobonhlobo zokusetshenziswa, futhi angomunye wemikhiqizo amakhasimende ayithenga kakhulu.Amanye ama-novices okuthenga angase abe nelukuluku, afana ne-valve yesango, uyini umehluko othize phakathi kwabo
Izinga le-AWWA lithi I-American Water Works Association yaqala ukushicilela imibhalo yokuvumelana ngo-1908. Namuhla, kunamazinga e-AWWA angaphezu kuka-190.Kusukela emthonjeni kuya endaweni yokugcina, kusukela ekuphathweni kuya ekusatshalalisweni, Amazinga e-AWWA ahlanganisa imikhiqizo nezinqubo ezihlobene nazo zonke izindawo zokuhlanza nokunikezwa kwamanzi.I-AWWA C504 ingeyommeleli ojwayelekile, iwuhlobo lwevalve uvemvane lwesihlalo semfucumfucu
Amavalvu ovemvane anosayizi omkhulu ngokuvamile abhekisela kumavalve ovemvane anobubanzi obukhulu kuno-DN500, ngokuvamile axhunywe ama-flange, ama-wafer.Kunezinhlobo ezimbili zamavalvu ovemvane anobubanzi obukhulu: i-valve uvemvane eligxilile kanye namavalve uvemvane.
Ama-eccentricities amathathu e-Triple Eccentric Butterfly Valve abhekiselwe ku:
I-eccentricity yokuqala: i-valve shaft itholakala ngemuva kwepuleti le-valve, evumela uphawunge Ring ukuzungeza eduze sonke isihlalo oxhumene ngaso.
I-eccentricity yesibili: i-spindle isuswe eceleni ukusuka kwisentier umugqa womzimba we-valve, ovimbela ukuphazamiseka kokuvula nokuvalwa kwe-valve.
I-eccentricity yesithathu: isihlalo isuswa emgqeni omaphakathi we-valve shaft, eqeda ukungqubuzana phakathi kwe-valveidiski kanye nesihlalo ngesikhathi sokuvala nokuvula.
I-valve yevemvane eyi-eccentric ephindwe kabili iqanjwe ngezakhiwo zayo ezimbili ezi-eccentric.Ngakho-ke injani i-double eccentric structure?
Okubizwa ngokuthi i-double eccentric, i-eccentric yokuqala ibhekisela ku-valve shaft ephuma phakathi nendawo yokuvala, okusho ukuthi isiqu singemuva kobuso bepuleti le-valve.Lokhu kufiphala kwenza indawo ethintana nayo kokubili ipuleti le-valve nesihlalo se-valve indawo yokuvala, enqoba ngokuyisisekelo ukushiyeka okungokwemvelo okukhona kuma-valve ovemvane agxilile, ngaleyo ndlela kuqede ithuba lokuvuza kwangaphakathi empambanweni yomgwaqo engenhla nephansi phakathi kwe-valve shaft kanye isihlalo se-valve.
I-Butterfly valve, ebizwa nangokuthi i-flap valve, iyisakhiwo esilula se-valve yokulungisa, engasetshenziswa kumapayipi anengcindezi ephansi ukuvala ukugeleza.Ukuzungeza i-valve shaft ukuze uvule futhi uvale i-valve.
Ngokwamafomu okuxhumana ahlukene, ingahlukaniswa nge-valve ye-butterfly, i-lug butterfly valve, i-valve butterfly valve, i-valve butterfly eshiselwe, i-screw thread butterfly valve, i-valve butterfly valve, njalonjalo.Phakathi kwamafomu okuxhumana asetshenziswa kakhulu ivalve yevemvane eyilutshwana kanye ne-lug butterfly valve.
I-valve ye-butterfly ye-pneumatic yakhiwe i-actuator ye-pneumatic kanye ne-butterfly valve.I-valve uvemvane olusebenza emoyeni isebenzisa umoya ocindezelwe njengomthombo wamandla ukushayela isiqu se-valve nokulawula ukuzungezisa kwediski ezungeze i-shaft ukuze uvule futhi uvale i-valve.
Ngokusho idivayisi womoya zingahlukaniswa single-ebambela uvemvane womoya valve kanye double-esebenza womoya uvemvane valve.
I-Zhongfa Valve ingumkhiqizi ochwepheshile wezingxenye zamavalvu ovemvane namavalvu ovemvane, eyasungulwa ngo-2006, ihlinzeka ngamavalvu nemikhiqizo yezingxenye zama-valve uvemvane emazweni angaphezu kwama-20 emhlabeni, ngokulandelayo, i-Zhongfa Valve izokwethula ukwethulwa okuningiliziwe kwezingxenye zamavalvu ovemvane.
Amavalve ovemvane awumndeni wamavalvu ajikelezayo ajikelezayo asetshenziswa kumapayipi, ngokuvamile ahlukaniswa ngokwakhiwa nokuxhuma.I-ZFA ingomunye wabakhiqizi abadumile be-wafer butterfly valve, abakhiqizi be-butterfly valve be-flange, nabakhiqizi be-lug butterfly valve e-China.
Izinhlobo ngokuxhuma, ziyizinhlobo ezine.
Ivalve yeZFA's electric butterfly valvesahlukaniswe abe izigaba ezimbili ezilandelayo: amavalve uvemvane ophakathi nendawo kanye namavalve uvemvane ane-eccentric, phakathi kwawo amavalve ovemvane aphakathi nendawo aphinde ahlukaniswe abe amavalve evemvane eyisilutshwana, ama-lug butterfly valves namavalve uvemvane.
Ama-valve emvemvane kagesi ahlanganiswa kusuka kuma-butterfly valves namadivayisi kagesi.Isetshenziswa kabanzi ku-petroleum, amakhemikhali, amandla kagesi, i-metallurgy, ukudla, imithi, izindwangu, iphepha nezinye izimboni.Izinto ezisetshenziswayo ngokuvamile igesi yemvelo, umoya, umusi, amanzi, amanzi olwandle namafutha.Amavalvu ovemvane asebenza ngezimoto asetshenziselwa ukulawula ukugeleza nokusika okuphakathi kumapayipi ezimboni.
Singahlinzeka ngezinhlobo ezilandelayo zamavalvu ovemvane we-API609:
Ngokusho kokuxhumana, sinakhoi-valve ye-butterfly ephindwe kabili,i-wafer butterfly valvefuthii-lug butterfly valve;
Ngokwalokho okushiwo, singahlinzeka nge-ductile iron material, i-carbon steel material, insimbi engagqwali, impahla yethusi, i-super duplex steel material;
Ngokwenqubo, singahlinzeka nge-API609 butterfly valve enomzimba ophonsa kanye nomzimba wokushisela.
I-PTFE Lining Valve eyaziwa nangokuthi i-fluorine plastic lined corrosion resistant valves, iyipulasitiki eyi-fluorine ebunjwe odongeni olungaphakathi lwensimbi noma izingxenye ezinevalvu yensimbi noma ingaphezulu lezingxenye zangaphakathi zevalvu.Amapulasitiki e-fluorine lapha ikakhulukazi afaka: PTFE, PFA, FEP nabanye.I-FEP ilayishiwe uvemvane, i-teflon coated butterfly valve kanye ne-FEP lined butterfly valve ngokuvamile zisetshenziswa kumithombo yezindaba eyonakalisayo.
Ama-valve ethu e-wafer butterfly ahambisana nezinga le-valve lamazwe ngamazwe le-ASTM, i-ANSI, i-ISO, i-BS, i-DIN, i-GOST, i-JIS, i-KS njalonjalo.Usayizi DN40-DN1200, ukucindezela okuzisholo: 0.1Mpa ~ 2.5Mpa, izinga lokushisa elifanele: -30 ℃ kuya ku-200 ℃.
Sithekelisa kakhulu emazweni angama-22 njenge-US, Russia, Canada, Spain njll.
n ngokwezinto ezibonakalayo, insimbi engagqwaliizivalo uvemvaneatholakala ku-SS304, SS316, SS304L, SS316L, SS2205, SS2507, SS410, SS431, SS416, SS201, Ngokwesakhiwo, ama-stainless steel butterfly valves atholakala emigqeni ye-centric ne-eccentric.Amavalvu ovemvane ensimbi engagqwali eyi-centric ngokuvamile enziwa ngensimbi engagqwali yomzimba we-valve, ipuleti le-valve, ne-shaft, kanye ne-EPDM noma i-NBR yesihlalo sevalvu, Aklanyelwe ngokuyinhloko ukulawula ukugeleza nokulawula imidiya egqwalayo, ikakhulukazi ama-asidi aqinile ahlukahlukene, njenge-sulfuric acid ne-aqua regia.