Valve ya butterflyndi mtundu wa valavu yomwe imagwiritsa ntchito diski yotsegula ndi kutseka gawo kuti ibwezere pafupifupi 90 ° kuti itsegule, kutseka kapena kusintha kuthamanga kwapakati. Valve ya butterfly sikuti imakhala ndi mawonekedwe osavuta, kukula kochepa, kulemera kochepa, kugwiritsa ntchito zinthu zochepa, kukula kwazing'ono, makina oyendetsa 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 kake 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 ntchito mankhwala kugonjetsedwa 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 amphamvu dzimbiri kukana, ntchito khola, si zosavuta ukalamba, otsika coefficient ya mikangano, zosavuta kupanga, dimensional bata, ndipo akhoza kusintha katundu wake wonse podzaza ndi kuwonjezera zipangizo zoyenera, ndi gulugufe valavu kusindikiza zakuthupi ndi mphamvu bwino ndi kutsika mikangano koyefishienti angapezeke angapezeke, ndi syntheric polymer zomangira zomangira angapezeke, ndi syntheric polymer zomangira angapezeke kuyimiridwa ndi PTFE ndi kudzazidwa kwake zosinthidwa zakhala zikugwiritsidwa ntchito kwambiri mu valavu butterfly, kotero kuti ntchito ya valavu gulugufe wakhala patsogolo patsogolo.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 ntchito kukana kutentha, otsika kutentha kukana, amphamvu dzimbiri kukana, amphamvu kukokoloka kukana, ndi mkulu-mphamvu aloyi zipangizo mu mavavu agulugufe, zitsulo losindikizidwa agulugufe mavavu akhala chimagwiritsidwa ntchito m'minda mafakitale monga mkulu ndi otsika kutentha, kukokoloka amphamvu, ndi moyo wautali, ndi mavavu agulugufe ndi awiri lalikulu (9 ~ 750mm), kuthamanga osiyanasiyana MP 42. (-196 ~ 606 ° C) adawonekera, kotero kuti luso la ma valve a butterfly lafika 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 ya gulugufe, 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 payipi ya payipi chiyenera kuganiziridwa bwino, ndi mphamvu ya gulugufe kuti athe kupirira mphamvu ya sing'anga ya payipi ikatsekedwa iyeneranso kuganiziridwa. 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
