Mavavu a Bellows globe, omwe amadziwikanso kuti ma bellows sealed globe valves, adapangidwa kuti apange chotchinga chachitsulo pakati pa sing'anga yamadzimadzi ndi mlengalenga pogwiritsa ntchito kuwotcherera pompopompo kuti zitsimikizire kuti zero tsinde likutha. Poyerekeza ndi valavu yachikhalidwe yapadziko lonse lapansi ili ndi zabwino izi:
1. Bellows globe vavu moyo wautali wautumiki, kuchepetsa kuchuluka kwa kukonza, kuchepetsa ndalama zogwirira ntchito. Mapangidwe olimba a bellows seal amawonetsetsa kuti tsinde itsike ndipo imathandizira kuti isamasamalidwe.
2. Mavavu otsegula ndi kutseka torque ndi yaing'ono, amachepetsa mphamvu ya ntchito, ndipo amatha kuyendetsa galimoto yamtundu uliwonse, yosavuta kulamulira kutali.
3. Maonekedwe okongola, njira ya valve imakhala ndi mzere woyenda bwino, kuchepetsa kuthamanga kwa mpweya wa valve, ndi mtundu wa zinthu zopulumutsa mphamvu.
4. Chisindikizo chakunja cha valavu chimagwiritsa ntchito chisindikizo cha bellows ndi graphite, chisindikizo chachitsulo chosapanga dzimbiri, chisindikizo chodalirika, kugwiritsa ntchito nthawi yayitali sikungathe m'malo mwa kusindikiza kusindikiza. Pogwiritsidwa ntchito m'mafakitale, valavu yoyimitsa wamba yomwe imayambitsidwa ndi kutayikira: kutentha kwakukulu, koopsa kwambiri, kuyaka ndi kuphulika, ma radioactive TV ndi zina zotero, osati kuwononga chilengedwe, komanso nthawi zambiri kumayambitsa kuwonongeka kwakukulu kwaumwini ndi katundu. Valavu yoyimitsa mvuvu ndiyotetezeka komanso yokhazikika, ndipo miyezo yapamwamba yapadziko lonse lapansi imatsatiridwa mosamalitsa pamapangidwe ndi kupanga.
Ubwino ndi kugwiritsa ntchito bellows globe valve
Bellows stop valve palibe kutayikira, yogwiritsidwa ntchito pazachiwopsezo chachikulu ndiyotetezeka.
Mavavu wamba padziko lonse lapansi amasindikizidwa ndi kulongedza, pakati pa tsinde ndi kulongedza kumatsika, kosavuta kutayikira pa kutentha kochepa (spool).
Valavu ya Bellows globe imatha kutambasulidwa ndikumangirira mavuvu osindikizira m'malo monyamula chisindikizo, imatha kuteteza kutayika kwapang'onopang'ono komwe kumachitika chifukwa cha kutayikira kwakunja. Nthawi zambiri ntchito kufala kwa sing'anga amphamvu permeable, monga valavu pa dongosolo haidrojeni, bola ngati mvuvu si kuonongeka, pali zambiri palibe kutayikira; Ndipo valavu yapadziko lonse lapansi yokhala ndi zonyamula kuti isindikize, yosavuta kutulutsa.
Mtundu woterewu wa tsinde la valve kutsegulira kapena kutsekera kutsekeka kumakhala kochepa, ndipo kumakhala ndi ntchito yodalirika kwambiri yodula, ndipo chifukwa cha kusintha kwa mpando wa valve kupyolera mu kugunda kwa disc kumagwirizana mwachindunji ndi chiyanjano, choyenera kwambiri pa kayendetsedwe ka kayendedwe kake. Choncho, valavu yamtunduwu ndi yoyenera kudula kapena kuwongolera ndi kugwiritsa ntchito throttling.
Nthawi yotumiza: Apr-26-2023
