Valve ya butterflyndi mtundu wa valavu yomwe imagwiritsa ntchito diski yotsegula ndi kutseka gawo kuti ibwezere pafupifupi 90 ° kuti itsegule, kutseka kapena kusintha kayendedwe kake. Valve ya butterfly sikuti imakhala ndi mawonekedwe osavuta, kukula kochepa, kulemera kochepa, kugwiritsa ntchito zinthu zochepa, kukula kwazing'ono, torque yaing'ono yoyendetsa galimoto, ntchito yosavuta komanso yachangu, komanso imakhala ndi ntchito yabwino yoyendetsera kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe kake. mitundu ya valve m'zaka khumi zapitazi. Ma valve a butterfly amagwiritsidwa ntchito kwambiri. Zosiyanasiyana ndi kuchuluka kwake komwe kumagwiritsidwira ntchito kumapitilira kukula, ndikukula mpaka kutentha kwambiri, kuthamanga kwambiri, m'mimba mwake yayikulu, kulimba kwambiri, moyo wautali, mikhalidwe yabwino kwambiri yoyendetsera, komanso magwiridwe antchito ambiri a valve imodzi. Kudalirika kwake ndi zizindikiro zina zogwirira ntchito zafika pamtunda wapamwamba.
Ndi kugwiritsa ntchito mankhwala kugonjetsedwa ndi kupanga mphira kutivalavu butterfly, machitidwe avalavu butterflywakhala bwino. Chifukwa mphira wopangira amakhala ndi mawonekedwe a kukana kwa dzimbiri, kukana kukokoloka, kukhazikika kwa mawonekedwe, kulimba mtima, kupanga kosavuta, mtengo wotsika, etc., mphira wopanga wokhala ndi zinthu zosiyanasiyana amatha kusankhidwa malinga ndi zofunikira zosiyanasiyana zogwiritsira ntchitovalavu butterfly.
Chifukwa polytetrafluoroethylene (PTFE) ali ndi dzimbiri kukana mwamphamvu, ntchito khola, yosavuta kukalamba, otsika coefficient of kukangana, zosavuta kupanga, dimensional bata, ndipo amatha kusintha katundu wake wonse mwa kudzaza ndi kuwonjezera zipangizo zoyenera, valavu gulugufe kusindikiza zakuthupi ndi bwino. mphamvu ndi kutsika kokwana kogundana kungathe kupezedwa, ndipo zoperewera za mphira wopanga zimagonjetsedwa, kotero kuti zinthu za polima za polima zomwe zimayimiridwa ndi PTFE ndi zinthu zake zosinthidwa zakhala zikugwiritsidwa ntchito kwambiri mu valve ya butterfly, kotero kuti valavu ya butterfly yakhala ikugwiritsidwa ntchito. zinayenda bwino.Mavavu a butterflyndi mitundu yosiyanasiyana ya kutentha ndi zovuta, ntchito yodalirika yosindikiza komanso moyo wautali wautumiki wapangidwa.
Pofuna kukwaniritsa zofunikira za mafakitale monga kutentha kwakukulu ndi kutsika, kukokoloka kwamphamvu, ndi moyo wautali, ma valve agulugufe osindikizira zitsulo apangidwa kwambiri. Ndi kugwiritsa ntchito kukana kutentha kwambiri, kukana kutentha kwapansi, kukana kwamphamvu kwa dzimbiri, kukana kukokoloka kwamphamvu, ndi zida zamphamvu kwambiri za aloyi mu mavavu agulugufe, mavavu agulugufe osindikizidwa zitsulo akhala akugwiritsidwa ntchito kwambiri m'mafakitale monga kutentha kwambiri ndi kutsika, kukokoloka kwamphamvu. , ndi moyo wautali, ndi mavavu agulugufe okhala ndi m'mimba mwake (9 ~ 750mm), kuthamanga kwambiri (42.0MPa) ndi kutentha kwakukulu (-196 ~ 606 ° C) awonekera, kotero kuti teknoloji ya ma valve a butterfly yafika pamlingo watsopano. .
Vavu yagulugufe ikatsegulidwa kwathunthu, imakhala ndi kukana koyenda pang'ono. Pamene kutsegulira kuli pakati pa 15 ° ~ 70 °, angagwiritsidwe ntchito poyang'anira kayendedwe kake, kotero kugwiritsa ntchito valavu ya butterfly kumakhala kofala kwambiri pakusintha kwakukulu.
Chifukwa cha kusuntha kwa gulugufe mbale yagulugufe, mavavu ambiri agulugufe amatha kugwiritsidwa ntchito ngati media ndi zolimba zoyimitsidwa. Kutengera mphamvu ya chisindikizocho, itha kugwiritsidwanso ntchito ngati ufa ndi granular media.
Ma valve a butterfly ndi oyenera kuwongolera kayendedwe kake. Chifukwa kuthamanga kwa valavu ya gulugufe mu chitoliro kumakhala kwakukulu, pafupifupi katatu kuposa valavu ya chipata, posankha valavu ya butterfly, chikoka cha kutayika kwa dongosolo la payipi chiyenera kuganiziridwa bwino, ndi mphamvu ya Gulugufe mbale kunyamula kukakamiza kwa sing'anga mapaipi pamene chatsekedwa ayenera kuganiziranso. Kuphatikiza apo, zoperewera za kutentha kwa ntchito zomwe zida zapampando za elastomeric zitha kuyikidwa pa kutentha kwakukulu ziyeneranso kuganiziridwa.
Vavu yagulugufe ili ndi utali womanga pang'ono ndi kutalika konse, kutsegulira ndi kutseka mwachangu, komanso mawonekedwe abwino owongolera madzimadzi. Mapangidwe a ma valve a butterfly ndi abwino kwambiri popanga ma valve akuluakulu. Pamene valavu ya butterfly ikufunika kuti igwiritsidwe ntchito poyendetsa kayendetsedwe kake, m'pofunika kusankha kukula koyenera ndi mtundu wa agulugufe kuti agwire bwino ntchito.
Nthawi zambiri, pakuwongolera, kuwongolera malamulo ndi sing'anga yamatope, kutalika kwa kapangidwe kake ndi kochepa, kutsegulira ndi kutseka kumathamanga, ndipo kutsika kwapang'onopang'ono (kusiyana kwapang'onopang'ono) kumafunika, ndipo valve ya butterfly ikulimbikitsidwa. Ma valve a butterfly angagwiritsidwe ntchito pakakhala kusintha kwa magawo awiri, njira yochepetsera m'mimba mwake, phokoso lochepa, cavitation ndi vaporization, kutayikira pang'ono mumlengalenga, ndi abrasive media. Pansi pamikhalidwe yapadera yogwirira ntchito, kusintha kwamphamvu, kapena kusindikiza mwamphamvu, kuvala kwakukulu, kutentha kochepa (cryogenic) ndi zina zogwirira ntchito.
Nthawi yotumiza: Nov-02-2024
