Mavavu agulugufe ndi zida zowongolera kuthamanga kwa kotala-kutembenuka komwe kumagwiritsa ntchito diski yachitsulo yomwe imazungulira mozungulira tsinde lokhazikika. Ndi ma valve owongolera othamanga omwe amalola madigiri 90 kuti asunthe kuchoka kutseguka kwathunthu kupita kumalo otsekedwa.
Pamene diskiyo imakhala yozungulira pakatikati pa chitoliro, valavu ili pamalo otsekedwa.Pamene diski ikufanana ndi pakati pa chitoliro, valavu idzakhala yotseguka (kulola kuti madzi aziyenda kwambiri) . makina owongolera (disk) pafupifupi ofanana ndi m'mimba mwake mkati mwa chitoliro choyandikana.
Ma valve awa amabwera mosiyanasiyana ndi mapangidwe omwe amatsimikizira momwe amagwirira ntchito muzogwiritsira ntchito mafakitale; ntchito zaukhondo valavu; ntchito zamoto; makina otenthetsera, mpweya wabwino, ndi mpweya (HVAC); ndi slurries.Kulankhula momveka bwino, ma valve a butterfly ndi ofunikira kuti ayendetse kayendetsedwe kake komanso kudzipatula.
Kusuntha kwa diski kumayamba, kumachepetsa kapena kuyimitsa kutuluka kwamadzimadzi.Mapulogalamu omwe amafunikira kulondola kwambiri amadalira ma valve agulugufe omwe amayang'anira momwe mapaipi akuyendera, kutsegula kapena kutseka valavu ngati kuli kofunikira kuti apitirize kuyenda mofanana. chimodzi mwamakhalidwe awa:
" Pafupi ndi mzere - mlingo wothamanga umagwirizana ndi kayendetsedwe kake ka diski. Mwachitsanzo, pamene diski ili ndi 40% yotseguka, kutuluka kwake ndi 40% ya maximum.
" Kutsegula mofulumira - Kuthamanga kumeneku kumawonetsedwa pogwiritsa ntchito ma valve a butterfly okhazikika. Kuthamanga kwamadzimadzi kumakhala kwakukulu kwambiri pamene diski imayenda kuchokera kumalo otsekedwa.
" Kudzipatula kwa Flow - Ma valve a butterfly amatha kupereka / kuzimitsa ntchito yamadzimadzi. Kudzipatula kumafunika nthawi iliyonse pamene mbali ina ya mapaipi ikufunika kukonzedwa.
Ma valve a butterfly ndi oyenerera ku ntchito zosiyanasiyana chifukwa cha mapangidwe awo opepuka komanso ntchito yofulumira.Ma valve a butterfly okhala ndi kutentha pang'ono ndi abwino kwa kutentha pang'ono, kutsika kwapansi, pamene ma valve a butterfly okhala ndi zitsulo ali ndi mphamvu zosindikizira bwino pogwira zinthu zamadzimadzi zowawa. pa kutentha kwambiri ndi kukanikiza ndipo amapereka viscous kapena corrosive zamadzimadzi.Ubwino wa mavavu agulugufe monga:
"Mavavu opepuka komanso ophatikizikajMavavu agulugufe amagwiritsa ntchito zitsulo zopyapyala ngati njira yowongolera kutuluka. Ma disks ndi ang'onoang'ono ndipo amatenga malo pang'ono, koma ndi amphamvu kuti azitha kuyendetsa bwino kayendedwe ka madzi. machitidwe m'malo opapatiza.Mapaipi akuluakulu amafunikira ma valve akuluakulu pogwiritsa ntchito zinthu zambiri zopangira, kuonjezera ndalama.Valve ya butterfly idzakhala yotsika mtengo kusiyana ndi valavu ya mpira ya kukula kwake chifukwa imadya zinthu zochepa kuti apange.
"Kusindikiza Mwachangu komanso Mwachangu - Ma valve a butterfly amapereka kusindikiza mwachangu pa actuation, kuwapangitsa kukhala abwino kwambiri pamayendedwe othamanga kwambiri. Makhalidwe osindikiza a butterfly valve amadalira mtundu wa disc offset ndi mawonekedwe a mpando. idzapereka kusindikiza kokwanira kwa mapulogalamu otsika kwambiri - mpaka 250 pounds pa square inchi (psi) .Valavu yowonongeka kawiri imapereka chisindikizo chabwino kwambiri cha njira mpaka ku 1,440 psi.Ma valve atatu ochotseratu amapereka kusindikiza kwa ntchito zothamanga pa 1,440 psi.
" Low Pressure Drop ndi High Pressure Recovery - Ma valve a butterfly ali ndi mphamvu yochepa kwambiri ngakhale kuti diski imakhalapo nthawi zonse mumadzimadzi. madzimadzi kuti apezenso mphamvu mwamsanga atachoka mu valve.
"Zofunika zosamalira zochepa - Ma valve a butterfly ali ndi zigawo zochepa zamkati. Alibe matumba omwe amatha kutseketsa zakumwa kapena zinyalala, choncho amafunika kuwongolera pang'ono. Kuyika kwawo kumakhala kosavuta monga momwe kumafunikira kutseketsa pakati pa ma flanges oyandikana nawo. monga kuwotcherera kumafunika.
"Ntchito Yosavuta - Chifukwa cha kukula kwake kophatikizana komanso kulemera kwake, ma valve a butterfly amafuna torque yochepa kwambiri kuti agwire ntchito. Ma disks achitsulo ang'onoang'ono amagwiritsa ntchito mphamvu zochepa kuti athetse kusagwirizana kwa madzi. perekani torque yokwanira pa ntchito yawo.Izi zimatanthawuza kutsika kwa ndalama zogwiritsira ntchito - makina ang'onoang'ono ang'onoang'ono amawononga mphamvu zochepa ndipo amawononga ndalama zochepa kuti awonjezere ku valve.
" Ma valve a butterfly amatha kugwidwa ndi cavitation ndi kutsekedwa kotsekedwa - pamalo otseguka, valavu sipereka doko lathunthu. Kukhalapo kwa diski mumsewu wamadzimadzi kumawonjezera kuwonjezereka kwa zinyalala kuzungulira valve, kuonjezera kuthekera kwa cavitation. Ma valve a mpira ndi njira ina yopangira madzimadzi omwe amafunikira madoko athunthu.
"Kuwonongeka kofulumira kwamadzimadzi a viscous fluid - madzi amatsuka ma valve a butterfly pamene akuyenda kupyolera mwa iwo. Pakapita nthawi, ma disks amawonongeka ndipo sangathenso kupereka chisindikizo. Mitengo ya Corrosion idzakhala yapamwamba ngati akugwira ntchito za viscous fluid. kukana kuposa mavavu agulugufe.
" Osayenerera kuthamanga kwapamwamba - valavu iyenera kugwiritsidwa ntchito pokhapokha pazitsulo zochepetsetsa, zochepa mpaka madigiri 30 mpaka madigiri 80 otsegula. Ma valve a Globe ali ndi mphamvu yothamanga kwambiri kuposa ma valve a butterfly.
Chovala cha valve pamalo otseguka bwino chimalepheretsa kuyeretsedwa kwa dongosolo ndikuletsa kutsekeka kwa mzere wokhala ndi valavu yagulugufe.
The unsembe udindo valavu gulugufe nthawi zambiri pakati flanges.Gulugufe mavavu ayenera kuikidwa osachepera anayi mpaka sikisi chitoliro diameters kuchokera kumaliseche nozzles, elbows, kapena nthambi kuchepetsa zotsatira za chipwirikiti.
Musanakhazikike, yeretsani mapaipi ndikuyang'ana ma flanges kuti mukhale osalala / flatness. Onetsetsani kuti mapaipi akugwirizana.Mukayika valavu, sungani diski pamalo otseguka pang'ono.Flanges angafunike kukulitsidwa kuti asawonongeke pampando pamwamba.Gwiritsani ntchito woyendetsa ndege. mabowo kapena zitsulo kuzungulira thupi la valavu pamene mukukweza kapena kusuntha valve.Pewani kukweza valavu pa actuator kapena woyendetsa.
Gwirizanitsani valavu ndi bawuti yoyikapo ya chitoliro choyandikana ndi dzanja. Limbitsani mabawuti, kenaka gwiritsani ntchito wrench ya torque kuti mutsitse mabawuti pang'onopang'ono komanso molingana kuti muyerekezere pakati pawo ndi flange. torque wrench kuti amangitse mabawuti kuti muwone ngati ma bawuti sakuvuta.
Kusamalira ma valve kumaphatikizapo kudzoza kwa zigawo zamakina, kuyang'anitsitsa ndi kukonzanso ma actuators.Mavavu omwe amafunikira mafuta nthawi ndi nthawi amaphatikizapo zopangira mafuta.Mafuta okwanira a lithiamu ayenera kugwiritsidwa ntchito pakapita nthawi kuti achepetse dzimbiri ndi dzimbiri.
Ndikofunikanso kuyang'ana nthawi zonse kuti muwone zizindikiro zowonongeka kapena zowonongeka kwa magetsi, pneumatic kapena hydraulic zomwe zingakhudze ntchito ya valve.
Kuonjezera apo, wogwiritsa ntchito ayenera kuyeretsa mbali zonse za valavu ya butterfly ndi mafuta odzola a silicone.Mpando uyenera kuyang'aniridwa ngati pali zizindikiro zilizonse zowonongeka ndikusintha ngati kuli kofunikira.Ma discs a butterfly valve omwe amagwiritsidwa ntchito muzouma zouma monga ntchito ya air compressed amafuna mafuta. Mavavu agulugufe omwe amazungulira pafupipafupi amayenera kuchitidwa kamodzi pamwezi.
Kusankha valavu kungawoneke ngati ntchito yosankha ndi kukweretsa, koma pali mfundo zingapo zaumisiri zomwe ziyenera kuganiziridwa.Choyamba chimaphatikizapo kumvetsetsa mtundu wa kayendetsedwe ka madzimadzi ofunikira komanso mtundu wa utumiki wamadzimadzi.Ntchito zamadzimadzi zowonongeka zimafuna ma valve opangidwa ndi chitsulo chosapanga dzimbiri, nichrome, kapena zinthu zina zosagwira dzimbiri.
Ogwiritsa ntchito ayenera kuganizira za mphamvu, kupanikizika ndi kusintha kwa kutentha kwa makina opangira mapaipi ndi mlingo wa automation wofunikira.Ngakhale ma valve a butterfly amathandizira kuti azitha kuyendetsa bwino, ndi okwera mtengo kuposa anzawo omwe amawagwiritsa ntchito pamanja.Ma valve a butterfly satha kuwongolera doko lathunthu.
Ngati wogwiritsa ntchito sakudziwa za kuyanjana kwamankhwala kwa njirayo kapena kusankha kwa actuation, kampani yoyenerera ya valve ikhoza kuthandizira kutsimikizira kusankha kolondola.
Gilbert Welsford Jr. ndi amene anayambitsa ValveMan ndi m'badwo wachitatu Valve entrepreneur.Kuti mudziwe zambiri, pitani Valveman.com.
Nthawi yotumiza: Mar-02-2022
