Kodi vavu ya butterfly ndi chiyani?
A valavu ya butterflyndi valve yozungulira kotala. Amagwiritsidwa ntchito kuwongolera kapena kupatula kutuluka kwamadzimadzi m'mapaipi. Valve ya butterfly komanso chifukwa cha kapangidwe kake kosavuta komanso kachitidwe koyenera komanso kosiyanasiyana.
Chiyambi cha dzina la gulugufe valavu: valavu valavu amaoneka ngati gulugufe ndipo amatchedwa.
1. Kapangidwe
Vavu ya butterfly imakhala ndi zigawo zikuluzikulu izi:
- Thupi: nyumba yomwe imakhala ndi mbali zonse zamkati ndikulumikizana ndi payipi.
- Chimbale: mbale yozungulira yozungulira mkati mwa thupi la valve, yomwe imayendetsa kutuluka kwa madzimadzi pozungulira.
- Tsinde: Shaft yomwe imalumikiza cholumikizira ku nthiti ya valve ndikuilola kuti izungulire.
- Mpando: Malo osindikizira mkati mwa thupi la valve, pomwe flapper amafinya mpando kuti apange chisindikizo cha hermetic pamene chatsekedwa kuti asiye kutuluka kwamadzimadzi.
- Actuator: Zowongolera pamanja monga zogwirira, magiya a nyongolotsi, komanso magetsi ndi pneumatic.
Zigawozi zimaphatikizana kupanga valavu yowonongeka, yopepuka yomwe imakhala yosavuta kukhazikitsa ndi kukonza.
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2. Mfundo ya ntchito
Kugwira ntchito kwa valve ya butterfly kumatengera torque ndi hydrodynamics. Kufunika kwa torque kumasiyanasiyana malinga ndi kusiyana kwapakati pakati pa mbali ziwiri za valavu ya gulugufe ndi malo a valavu. Chochititsa chidwi n'chakuti, torque imafika pamtunda wa 70-80% wa valve chifukwa cha mphamvu yamadzimadzi. Chikhalidwe ichi chimafuna kufananitsa koyenera kwa actuator.
Kuphatikiza apo, ma valve agulugufe ali ndi gawo lofanana loyenda pamapindikira, zomwe zikutanthauza kuti kusintha kwakung'ono mu chotchinga kumakhudza kwambiri kuthamanga kwa ma valve otsika kuposa kutseguka kwathunthu. Izi zimapangitsa mavavu agulugufe kukhala oyenera kuwongolera kugunda muzochitika zinazake, mosiyana ndi zomwe anthu ambiri amakhulupirira kuti ndi oyenera kugwiritsidwa ntchito poyatsa/kuzimitsa.
Ma valve a butterfly ndi osavuta komanso ogwira ntchito:
- Tsegulani malo: valavu ya valve imazungulira mofanana ndi momwe madzi amayendera, kuti madziwo adutse pafupifupi mosatsutsika.
- Malo otsekedwa: valavu imazungulira molunjika kumalo amadzimadzi, kutseka madziwo.
Monga valavu yotembenukira kotala, imasinthasintha pakati pa kutseguka kwathunthu ndi kutsekedwa kwathunthu ndi kuzungulira madigiri 90 okha, mofulumira komanso moyenera.
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3. Ubwino ndi kuipa kwake
3.1 Ubwino wa mavavu agulugufe
- Yopepuka komanso yopepuka: Yaing'ono komanso yosavuta kuyiyika kuposa mavavu ena monga zipata kapena mavavu a globe.
- Zachuma komanso zogwira mtima: zotsika mtengo chifukwa cha zomangamanga zosavuta komanso zocheperako.
- Kugwira ntchito mwachangu: kumatha kutsegulidwa kapena kutsekedwa ndikutembenukira kotala, koyenera kuyankha mwachangu pakufunika.
- Kuchepetsa mtengo wokonza: magawo ochepa osuntha amatanthauza kung'ambika komanso kukonza kosavuta.
3.2 Kuipa kwa mavavu agulugufe
- Kugwedezeka koletsedwa: sikuli koyenera kuyendetsa bwino kayendedwe ka kayendedwe kake, makamaka pazovuta kwambiri, chifukwa kungayambitse chipwirikiti ndi kung'ambika.
- Chiwopsezo cha kutayikira: mapangidwe ena sangasindikize mwamphamvu ngati ma valve amtundu wina ndipo pamakhala chiwopsezo cha kutayikira.
- Kutsika kwapakati: ngakhale kutseguka, valavu ya valve imakhalabe panjira yothamanga, zomwe zimapangitsa kuchepetsa pang'ono kupanikizika.
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4. Mapulogalamu
Mavavu agulugufe amagwiritsidwa ntchito kwambiri m'mafakitale ambiri chifukwa amatha kuyendetsa madzi ambiri osataya mphamvu pang'ono, kuwapangitsa kukhala abwino pamapaipi akulu.
Chitsanzo:
- Kusamalira madzi: kuyang'anira kayendedwe ka madzi m'malo oyeretsera madzi ndi njira zogawa.
- Makina a HVAC: kuwongolera kayendedwe ka mpweya potentha, mpweya wabwino komanso makina owongolera mpweya.
- Chemical processing: Itha kugwiritsidwa ntchito kuthana ndi mankhwala osiyanasiyana chifukwa chogwirizana ndi zinthu.
- Chakudya ndi Chakumwa: pazaukhondo chifukwa cha kuyeretsa kosavuta.
- Mafuta ndi gasi: amawongolera ndikulekanitsa kuyenda kwamapaipi ndi zoyenga.
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Mwachidule,valavu butterflyndi njira yothandiza komanso yotsika mtengo yowongolera madzimadzi, yoyamikiridwa chifukwa cha kuphweka kwawo komanso kusinthasintha.