Ndi chiyanivalavu ya mpira woyandama?
Valavu yamtundu woyandama ndi mtundu wa valavu yomwe imagwiritsa ntchito mpira wokhala ndi dzenje pakatikati monga gawo lalikulu.Mpira umayimitsidwa mkati mwa thupi la valve ndi tsinde, lomwe limagwirizanitsidwa ndi chogwirira kapena lever yomwe imagwiritsidwa ntchito kutsegula ndi kutseka valve.Mpirawo ndi waulere kusuntha kapena "kuyandama" mkati mwa thupi la valve, ndipo umasindikizidwa ndi mipando iwiri kapena zisindikizo pamene valavu yatsekedwa.Vavu ikatsegulidwa, mpira umachotsedwa pamipando, ndikulola kuti madzi azitha kudutsa mu valve.Mavavu amtundu woyandama wa mpira nthawi zambiri amagwiritsidwa ntchito pazovuta kwambiri komanso kutentha kwambiri chifukwa amatha kupirira mikhalidwe yosiyanasiyana ndipo ndi yosavuta kusamalira.
Kodi pali kusiyana kotani pakati pa trunnion ndi ma valve oyandama a mpira?
Mavavu a mpira wa Trunnion ndi ma valve oyandama ndi mitundu yonse ya ma valve a mpira omwe amagwiritsidwa ntchito kuwongolera kutuluka kwa madzi kudzera papaipi.Kusiyana kwakukulu pakati pa awiriwa ndi njira yomwe mpira umathandizidwa mkati mwa thupi la valve.
Mu valavu ya mpira wa trunnion, mpirawo umathandizidwa ndi ma trunnions awiri, omwe ndi mawonedwe ang'onoang'ono a cylindrical omwe amachoka pamwamba ndi pansi pa mpirawo.Ma trunnions amapezeka muzitsulo mu thupi la valve, zomwe zimalola mpira kusinthasintha bwino pamene valve imatsegulidwa kapena kutsekedwa.
Mu valavu ya mpira yoyandama, mpirawo suthandizidwa ndi ma trunnions.M'malo mwake, amaloledwa "kuyandama" mkati mwa thupi la valve, motsogoleredwa ndi mphete yosindikiza.Vavu ikatsegulidwa kapena kutsekedwa, mpirawo umayenda mmwamba kapena pansi mkati mwa valavu, motsogozedwa ndi mphete yosindikiza.
Mavavu a mpira wa trunnion ndi ma valve oyandama ali ndi zabwino ndi zovuta zawo.Ma valve a mpira wa Trunnion nthawi zambiri amakhala olimba kwambiri ndipo amatha kuthana ndi kuthamanga kwambiri komanso kutentha, koma amakhala okwera mtengo kwambiri kupanga.Ma valve oyandama a mpira ndi okwera mtengo kwambiri ndipo ndi osavuta kuyika, koma sali oyenera kukakamiza kwambiri kapena kugwiritsa ntchito kutentha.
Kodi mavavu oyandama ndi ati?
Pali mitundu ingapo ya ma valve oyandama, kuphatikiza:
1.Valavu yoyandama yamtundu wa plunger: Valavu yoyandama yamtundu uwu imagwiritsa ntchito plunger yomwe imamangiriridwa pa choyandama.Mulingo wamadzimadzi ukakwera, choyandamacho chimakwera nacho, kupangitsa kuti plunger ikankhire pampando wa valve, kutseka valavu.Pamene mlingo wamadzimadzi umagwa, choyandamacho chimagwera nacho, ndikulola kuti valve itseguke.
2.Valavu ya Ballcock: Valavu yoyandama yamtunduwu imagwiritsidwa ntchito nthawi zambiri m'zimbudzi kuwongolera kutuluka kwamadzi mu thanki.Zimapangidwa ndi zoyandama zomwe zimamangiriridwa ku tsinde la valve, lomwe limayang'anira kutuluka kwa madzi.
3.Valavu yoyandama yamtundu wa diaphragm: Valavu yoyandama yamtundu uwu imagwiritsa ntchito diaphragm yosinthika yomwe imamangiriridwa ku choyandama.Madziwo akakwera, choyandamacho chimakwera nacho, zomwe zimapangitsa kuti diaphragm ikanikize pampando wa valve, kutseka valavu.
4.Valavu yoyandama yamtundu wa Paddle: Valavu yoyandama yamtunduwu imagwiritsa ntchito chopalasa chomwe chimalumikizidwa ndi choyandama.Pamene mulingo wamadzimadzi ukukwera, choyandamacho chimakwera nacho, kuchititsa kuti paddle ikakankhire pampando wa valve, kutseka valavu.
5.Valavu yoyandama yamagetsi: Mtundu uwu wa valavu yoyandama umagwiritsa ntchito maginito amagetsi kuwongolera kutuluka kwamadzi.Madziwo akakwera, choyandamacho chimayambitsa maginito amagetsi, omwe amayendetsa valavu kuti atseke kutuluka kwamadzi.
Kodi valavu yoyandama ndi chiyani?
Cholinga chachikulu cha valavu yoyandama ndikuwongolera zokha kutuluka kwa madzi kulowa kapena kutuluka mu chidebe kapena thanki.Ma valve oyandama amagwiritsidwa ntchito kwambiri pazinthu zosiyanasiyana, kuphatikiza:
1.Matanki akuchimbudzi: Mavavu a Ballcock amagwiritsidwa ntchito kuwongolera kutuluka kwa madzi mu thanki.
2.Matanki amadzi: Ma valve oyandama amagwiritsidwa ntchito kuti madzi azikhala osasunthika m'matangi, polola kuti madzi alowemo pamene mlingo uli wochepa ndi kutseka kutuluka pamene mlingo uli pamwamba.
3.Njira zothirira: Ma valve oyandama amagwiritsidwa ntchito powongolera kutuluka kwa madzi kupita kuminda kapena m'minda.
4.Matanki osungiramo mankhwala: Ma valve oyandama amagwiritsidwa ntchito kusunga mlingo wamadzimadzi m'matangi osungiramo mankhwala, kuonetsetsa kuti mankhwalawo sakupitirira kapena kuchepetsedwa.
5.Zinsanja zozizira: Mavavu oyandama amagwiritsidwa ntchito kuwongolera kutuluka kwa madzi munsanja zozizirira, kuti madzi azikhala okhazikika.
Ponseponse, ma valve oyandama amagwiritsidwa ntchito kuti aziwongolera okha kutuluka kwa zakumwa m'njira zosiyanasiyana pomwe mulingo wamadzimadzi wokhazikika umayenera kusamalidwa.
Malingaliro a kampani NORTECH Engineering Corporation Limitedndi mmodzi wa kutsogolera mafakitale valavu opanga ndi ogulitsa ku China, ndi zaka zoposa 20 za OEM ndi ntchito ODM.
Nthawi yotumiza: Jan-06-2023