Zotsatira za kutentha ndi kupanikizika pakugwira ntchito kwa valve butterfly kumaphatikizapo kusindikiza, mphamvu zamapangidwe, ntchito ya valve butterfly, ndi zina zotero.
Kukonzekera kwa valve ya butterfly ndi njira yosavuta koma yovuta.Pokhapokha pamene sitepe iliyonse yachitidwa mosamala ndi pamene valavu ya gulugufe imagwira ntchito bwino.Zotsatirazi ndi kufotokoza mwachidule ndondomeko ya msonkhano wagulugufe wagulugufe.
Kukonza ma valve a butterfly kungasiyane kutengera mtundu wa kuwonongeka kapena kulephera.Ikhoza kugawidwa mu kukonza, kukonza zonse ndi kukonza zolemetsa.
Nthawi yotsegula ndi yotseka ya valavu ya butterfly ikugwirizana ndi kuthamanga kwa actuator, kuthamanga kwa madzi ndi zina.
t=(90/ω)*60,
Vavu yachipata ndi valavu yomwe imagwiritsidwa ntchito KUTSEGULA ndi KUZImitsa kutuluka kwa madzi mupaipi.Amatsegula kapena kutseka valavu pokweza chipata kuti alole kapena kuletsa kutuluka kwa madzi.Tiyenera kutsindika kuti valve yachipata sichingagwiritsidwe ntchito poyendetsa kayendetsedwe kake.
Pali mitundu yambiri ya ma valve a butterfly valve malinga ndi kagwiritsidwe ntchito ka ma valve agulugufe, miyeso yodziwika bwino ya agulugufe m'matangadza amachokera ku DN50-DN600, kotero tiwonetsa ma disc a valve malinga ndi makulidwe omwe amagwiritsidwa ntchito nthawi zonse.
Kodi pali kusiyana kotani, ubwino ndi kuipa kwa vavu ya butterfly ndi valavu ya mpira?M'nkhaniyi, tikusanthula kuchokera kuzinthu zomwe zimapangidwira, mfundo, kukula kwa ntchito ndi kusindikiza.
Makampani opanga ma valve ku China nthawi zonse akhala amodzi mwamafakitale otsogola padziko lonse lapansi.Mumsika waukuluwu, ndi makampani ati omwe amadziwikiratu ndikukhala otsogola khumi pamakampani opanga ma valve ku China?
Izo makamaka zimadalira mlingo wa chete.Ma valve otsekera chete amangochotsa phokoso ndikuchepetsa phokoso.Ma valve opanda phokoso amatha kutchingira ndikuletsa mawuwo akagwiritsidwa ntchito.
Kuthamanga kwa mayeso> kukakamiza mwadzina> kukakamiza kwapangidwe> kukakamiza kugwira ntchito.
Mfundo yogwirira ntchito ya valavu yagulugufe yamagetsi ndiyo kuyendetsa chipangizo chotumizira kudzera mu galimoto kuti chizungulire mbale ya valve, potero kusintha malo amadzimadzi mu thupi la valve ndikuwongolera kutuluka.
Malinga ndi kafukufuku ndi kusanthula, dzimbiri ndi chimodzi mwazinthu zofunika zomwe zimawononga mavavu agulugufe.
Chifukwa chake, njira yotetezera pamwamba pa thupi la valve ndi mbale ya valve ndiyo njira yotsika mtengo kwambiri yotetezera ku dzimbiri kunja kwa chilengedwe.
Zisindikizo zolimba zimapangidwa ndi zitsulo, monga ma gaskets achitsulo, mphete zachitsulo, ndi zina zotero, ndipo kusindikiza kumatheka chifukwa cha mikangano pakati pa zitsulo.Zisindikizo zofewa zimapangidwa ndi zinthu zotanuka, monga mphira, PTFE, ndi zina.
Mavavu ochulukirachulukira aku China amatumizidwa kumayiko osiyanasiyana padziko lonse lapansi, ndiyeno makasitomala ambiri akunja samamvetsetsa tanthauzo la nambala ya valve yaku China, lero tikutengerani kumvetsetsa, chiyembekezo chingathandize makasitomala athu.
Kusankha pakati pa mitundu iwiri ya mavavu agulugufe kumadalira zofunikira zenizeni za ntchito, kuphatikizapo zopinga za danga, kupanikizika, kukonzanso pafupipafupi, ndi kulingalira kwa bajeti.
Malingana ndi mawonekedwe a kugwirizana kwa flange, thupi la gulugufe la gulugufe limagawidwa kukhala: wafer mtundu A, wafer mtundu LT, flange imodzi, flange iwiri, U mtundu wa flange.
Mtundu wa Wafer A ndiwolumikizana ndi dzenje lopanda ulusi, LT mtundu wa 24" pamwamba pazidziwitso zazikulu nthawi zambiri amagwiritsa ntchito mphamvu ya U-mtundu wa valve kuti alumikizane ndi ulusi, kumapeto kwa payipi kumafunika kugwiritsa ntchito mtundu wa LT.
Valavu yooneka ngati V imakhala ndi doko lokhala ngati V mbali imodzi ya phata la hemispherical valve.
Kutsegula kwa njira ya O-mawonekedwe a mpira valavu ndi yozungulira, kukana kwake kumayenda pang'ono, ndipo liwiro losinthira ndilofulumira.
M'nkhani yapitayi, tidakambirana za ma valve a zipata ndi globe, lero tikupita ku ma valve a butterfly ndi ma valve, omwe amagwiritsidwa ntchito kwambiri pochiza madzi.
Vavu ndi chipangizo chowongolera cha payipi yamadzimadzi.Ntchito yake yayikulu ndikulumikiza kapena kudula kufalikira kwa sing'anga yamapaipi, kusintha kayendedwe ka sing'anga, kusintha kuthamanga ndi kutuluka kwapakati, ndikuyika ma valve osiyanasiyana, akulu ndi ang'onoang'ono, mu dongosolo.Chitsimikizo chofunikira cha ntchito yachibadwa ya chitoliro ndi zipangizo.
Ma coefficients oyendetsa ma valve oyendetsa (Cv, Kv ndi C) a machitidwe osiyanasiyana a unit ndi ma valve olamulira pansi pa kuthamanga kwapadera kosiyana, kuchuluka kwa madzi ozungulira mu nthawi yomwe valve yolamulira imatsegulidwa, Cv, Kv ndi C pali. ubale pakati pa Cv = 1.156Kv, Cv = 1.167C.Nkhaniyi ikugawana tanthawuzo, gawo, kutembenuka ndi kutulutsa kwathunthu kwa Cv, Kv ndi C.
Mpando wa vavu ndi gawo lochotseka mkati mwa valavu, ntchito yayikulu ndikuthandizira mbale ya valve yotseguka kapena kutsekedwa kwathunthu, ndikupanga wosindikiza.Kawirikawiri, kukula kwa mpando ndi kukula kwa valve caliber.Zida zapampando wagulugufe ndizotakata kwambiri, zida zomwe zimagwiritsidwa ntchito nthawi zambiri ndizosindikiza zofewa EPDM, NBR, PTFE, ndi zitsulo zolimba zosindikiza za carbide.Kenako tikudziwitsani mmodzimmodzi...
Vavu yoyang'ana imatanthawuza magawo otsegulira ndi otseka a valve yozungulira ndikudalira kulemera kwawo komanso kukakamiza kwa media kuti apange zochita kuti atseke kubweza kwapakati kwa valve.Valovu yoyang'ana ndi valve yodziwikiratu, yomwe imadziwikanso kuti valavu yoyendera, valavu yanjira imodzi, valavu yosabwerera kapena valavu yodzipatula.
Ma valve otsekaAmadziwikanso kuti ma backflow valves, ma backstop valves, ndi ma backpressure valves.Mitundu ya mavavu amtunduwu imatsegulidwa ndi kutsekedwa ndi mphamvu yomwe imapangidwa ndi kayendedwe ka sing'anga yokha mu payipi, yamtundu wa valve yodziwikiratu.
Vavu ya butterfly chifukwa cha kukula kwake kakang'ono ndi kapangidwe kosavuta, yakhala imodzi mwa mavavu omwe amagwiritsidwa ntchito kwambiri m'makampani, ndipo amagwiritsidwa ntchito kwambiri pamagetsi opangira madzi, ulimi wothirira, kumanga madzi ndi ngalande, zomangamanga zamatauni ndi machitidwe ena a mapaipi, omwe amagwiritsidwa ntchito popanga magetsi. kudula kapena kuyimira pakati pamayendedwe ozungulira media kuti mugwiritse ntchito.Ndiye valavu gulugufe ntchito mavuto amene akufunika chisamaliro ndi njira zothetsera zimene, lero tidzakhala mwachindunji kumvetsa.
Ma valve otsekera pachipata ndi ma valve osindikizira olimba ndi zida zomwe zimagwiritsidwa ntchito kwambiri pakuwongolera ndi kutsekereza kutuluka, onse amakhala ndi ntchito yabwino yosindikiza, kugwiritsa ntchito mosiyanasiyana, ndipo ndi imodzi mwazinthu zomwe makasitomala amagula kwambiri.Ma novices ena ogula angakhale ndi chidwi, mofanana ndi valve yachipata, kusiyana kwake ndi chiyani pakati pawo
Muyezo wa AWWA ndi The American Water Works Association koyamba kusindikiza zikalata zogwirizana mu 1908. Masiku ano, pali Miyezo yopitilira 190 ya AWWA.Kuchokera ku gwero kupita ku zosungirako, kuchokera ku chithandizo mpaka kugawa, Miyezo ya AWWA imaphimba zinthu ndi njira zokhudzana ndi madera onse opangira madzi ndi kupereka.AWWA C504 ndi yoyimira, ndi mtundu wa valavu yagulugufe
Mavavu akulu akulu akulu amatanthawuza mavavu agulugufe okhala ndi mainchesi akulu kuposa DN500, omwe nthawi zambiri amalumikizidwa ndi ma flanges, zopyapyala.Pali mitundu iwiri ya mavavu agulugufe okhala ndi m'mimba mwake: mavavu agulugufe okhazikika komanso ma valve agulugufe.
Ma eccentricities atatu a Triple Eccentric Butterfly Valve amatchulidwa:
Eccentricity yoyamba: shaft ya valve ili kuseri kwa mbale ya valve, kulola chisindikizomphete kuti azungulire mpando wonse polumikizana.
Kulumikizana kwachiwiri: spindle imasinthidwa motsatana ndi sentier mzere wa thupi la valve, zomwe zimalepheretsa kusokoneza kutsegula ndi kutseka kwa valve.
Eccentricity yachitatu: mpando imachotsedwa pamzere wapakati wa shaft ya valve, yomwe imathetsa kukangana pakati padiski ndi kukhala pa nthawi yotseka ndi kutsegula.
Valavu yagulugufe wapawiri wopangidwa ndi agulugufe amatchulidwa kutengera mawonekedwe ake awiri.Ndiye mawonekedwe a Double eccentric ndi otani?
Zomwe zimatchedwa kawiri eccentric, choyamba eccentric chimatanthawuza shaft ya valve yomwe ili pakatikati pa malo osindikizira, zomwe zikutanthauza kuti tsinde ili kumbuyo kwa nkhope ya valve.Kuphatikizika kumeneku kumapangitsa kuti mbali zonse ziwiri za mbale ya valve ndi mpando wa valavu zikhale zosindikizira, zomwe zimagonjetsa zofooka zomwe zimapezeka m'ma valve agulugufe, motero kuthetsa kuthekera kwa kutuluka kwamkati pamtunda wapamwamba ndi wapansi pakati pa shaft ndi valve. mpando wa valve.
Valavu ya butterfly, yomwe imatchedwanso kuti flap valve, ndi njira yosavuta yosinthira valavu, yomwe ingagwiritsidwe ntchito pamapaipi otsika kwambiri kuti atseke kutuluka.Kuzungulira kuzungulira shaft ya valve kuti mutsegule ndi kutseka valve.
Malinga ndi mitundu yosiyanasiyana yolumikizira, imatha kugawidwa kukhala valavu yagulugufe, valavu yagulugufe, valavu yagulugufe, valavu yagulugufe, valavu yagulugufe, valavu yagulugufe, valavu yagulugufe, ndi zina zotero.Zina mwa mafomu olumikizana omwe amagwiritsidwa ntchito kwambiri ndi valavu yagulugufe wafer ndi valavu ya butterfly.
Valavu ya butterfly ya pneumatic imapangidwa ndi makina oyendetsa mpweya ndi valavu ya butterfly.Vavu yagulugufe yoyendetsedwa ndi mpweya imagwiritsa ntchito mpweya woponderezedwa ngati gwero lamphamvu kuyendetsa tsinde la valavu ndikuwongolera kuzungulira kwa disc mozungulira tsinde kuti mutsegule ndi kutseka valavu.
Malinga ndi chipangizo pneumatic akhoza kugawidwa mu umodzi-kuchita pneumatic butterfly valavu ndi iwiri akuchita pneumatic butterfly valavu.
Zhongfa Valve ndi katswiri wopanga magawo agulugufe ndi ma valve agulugufe, omwe adakhazikitsidwa mu 2006, ndikupereka zida zama valve ndi zida za agulugufe kumayiko opitilira 20 padziko lapansi, kenako, Zhongfa Valve ikhazikitsa tsatanetsatane wa zida za agulugufe.
Ma valve a butterfly ndi gulu la ma valve oyendayenda ozungulira kotala omwe amagwiritsidwa ntchito m'mapaipi, nthawi zambiri amagawidwa ndi zomangamanga ndi kugwirizana.ZFA ndi amodzi mwa opanga ma valve agulugufe otchuka, opanga ma valve agulugufe wa flange, ndi opanga ma valve agulugufe ku China.
Mitundu mwa Kulumikizana, ndi mitundu inayi.
ZFA valve's magetsi butterfly mavavuamagawidwa m'magulu awiri otsatirawa: mavavu agulugufe wapakati ndi ma valve agulugufe omwe ali pakati, omwe ma valve agulugufe apakati amagawidwanso kukhala ma valve agulugufe, ma valve agulugufe ndi ma valve a butterfly.
Mavavu agulugufe amagetsi amasonkhanitsidwa kuchokera ku mavavu agulugufe ndi zida zamagetsi.Amagwiritsidwa ntchito kwambiri mu petroleum, mankhwala, mphamvu yamagetsi, zitsulo, chakudya, mankhwala, nsalu, mapepala ndi mafakitale ena.Sing'anga nthawi zambiri imakhala gasi, mpweya, nthunzi, madzi, madzi a m'nyanja ndi mafuta.Ma valve agulugufe oyendetsedwa ndi injini amagwiritsidwa ntchito kuwongolera kuyenda ndikudula sing'anga pamapaipi amakampani.
Titha kupereka mitundu iyi ya mavavu agulugufe a API609:
Malinga ndi kugwirizana, ife tirivalavu ya butterfly yawiri-flange,valavu ya butterflyndivalavu ya butterfly;
Malinga ndi zinthuzi, titha kupereka chitsulo cha ductile, zinthu za carbon zitsulo, zitsulo zosapanga dzimbiri, zinthu zamkuwa, zida zapamwamba zachitsulo;
Malinga ndi ndondomekoyi, titha kupereka valavu yagulugufe ya API609 yokhala ndi thupi loponyera ndi kuwotcherera.
PTFE Lining Valve yomwe imadziwikanso kuti fluorine pulasitiki yokhala ndi dzimbiri zosagwira mavavu, ndi pulasitiki ya fluorine yomwe imapangidwira mkati mwa khoma lamkati lazitsulo kapena zitsulo zokhala ndi valavu kapena kunja kwa mbali zamkati za valve.Mapulasitiki a fluorine apa makamaka akuphatikizapo: PTFE, PFA, FEP ndi ena.Gulugufe wokhala ndi FEP, valavu yagulugufe yokhala ndi teflon ndi valavu yagulugufe ya FEP nthawi zambiri amagwiritsidwa ntchito popanga zowononga kwambiri.
Mavavu athu agulugufe ophwanyika amatsatira muyezo wapadziko lonse wa ASTM, ANSI, ISO, BS, DIN, GOST, JIS, KS ndi zina zotero.Kukula DN40-DN1200, kuthamanga mwadzina: 0.1Mpa ~ 2.5Mpa, kutentha oyenera: -30 ℃ mpaka 200 ℃.
Timatumiza makamaka kumayiko 22 monga US, Russia, Canada, Spain etc.
n mawu a chuma, chitsulo chosapanga dzimbirivalavu butterflyzilipo SS304, SS316, SS304L, SS316L, SS2205, SS2507, SS410, SS431, SS416, SS201, Pankhani ya kapangidwe, zitsulo zosapanga dzimbiri agulugufe mavavu akupezeka mu mizere centric ndi eccentric.Mavavu agulugufe apakati amapangidwa ndi chitsulo chosapanga dzimbiri cha valavu, mbale ya valve ndi kutsinde, ndi EPDM kapena NBR ya mpando wa valve, amapangidwa makamaka kuti aziwongolera komanso kuwongolera zowononga media, makamaka ma acid amphamvu osiyanasiyana, monga sulfuric acid ndi aqua regia.