Kagwiritsidwe ntchito ndi mitundu ya ma flange gaskets

Mitundu yayikulu ya ma gasket a flange

Ma gaskets osakhala achitsulo

Zipangizo wamba: rabala, polytetrafluoroethylene (PTFE), ulusi wosakhala wa asbestos (asbestos ya rabala).

Ntchito zazikulu ndi mawonekedwe:

Popeza amagwiritsidwa ntchito kwambiri m'madzi, mpweya, nthunzi, asidi ndi zinthu zina za alkali, ma gasket a asbestos a mphira anali osankhidwa kwambiri.

Pazochitika zosagwira dzimbiri, ma gasket a PTFE ali ndi kukhazikika kwabwino kwa mankhwala.

Ma gasket a theka-chitsulo

Zipangizo wamba: Chingwe chachitsulo + graphite/asbestos/chingwe chodzazidwa ndi PTFE (mtundu wa bala), maziko osapangidwa ndi chitsulo, graphite composite gasket yosinthasintha.

Ntchito zazikulu ndi mawonekedwe:

Kuphatikiza mphamvu ya chitsulo ndi kusinthasintha kwa zinthu zopanda chitsulo m'malo ogwirira ntchito otentha kwambiri, opanikizika kwambiri komanso osiyanasiyana. Pakati pawo, ma gasket a zitsulo ndi omwe amasankhidwa kwambiri m'mafakitale a petrochemical, mankhwala ndi ena.

Pazofunikira kwambiri zotsekera, monga ma gasket achitsulo ozungulira/ozungulira, amagwiritsidwa ntchito m'mapaipi kapena m'zombo zopanikizika zomwe zimakhala ndi kuthamanga kwambiri komanso kutentha.

Ma gasket achitsulo

Zipangizo wamba: chitsulo chofewa, chitsulo chosapanga dzimbiri, mkuwa, aloyi wa Monel.

Ntchito zazikulu ndi zinthu:

Mikhalidwe yoopsa kwambiri: imagwiritsidwa ntchito pamalo otentha kwambiri, opanikizika kwambiri komanso owononga kwambiri.

Amapereka magwiridwe antchito abwino kwambiri otsekera koma ali ndi zofunikira kwambiri pakukonzekera bwino kwa pamwamba pa kutsekera kwa flange ndi kuyika, ndipo ndi okwera mtengo.

Posankha ma gasket, zinthu zingapo ziyenera kuganiziridwa mokwanira. Mfundo yaikulu ili m'magawo anayi ofunikira: "sing'anga, kuthamanga, kutentha, ndi flange“.

Katundu wapakati: Pa zinthu zowononga (monga ma acid ndi alkali), zinthu zoteteza gasket ziyenera kukhala zotetezeka ku dzimbiri.

Kupanikizika ndi kutentha kwa ntchito: Mu nyengo yotentha kwambiri komanso yopanikizika kwambiri, ma gasket achitsulo kapena theka-chitsulo omwe amatha kupirira kutentha ndi kupanikizika ayenera kusankhidwa.

Mtundu wa pamwamba pa flange sealing: Malo osiyanasiyana a flange (monga RF yokwezedwa nkhope, MFM ya amuna ndi akazi, TG ya lilime ndi groove) ayenera kufananizidwa ndi mitundu inayake ya gasket.

Zinthu zina: Kugwedezeka, kusinthasintha kwa kutentha ndi kuthamanga kwa mpweya pafupipafupi, kufunikira kochotsa zinthu pafupipafupi, komanso bajeti ya ndalama ziyeneranso kuganiziridwa.

Ponseponse,

Pa mpweya wochepa komanso zinthu zofala (madzi, mpweya, nthunzi yotsika): Ma gasket osakhala achitsulo, monga rabara kapena ma gasket a PTFE, ndi omwe amakondedwa chifukwa cha mtengo wawo wotsika.

Pa ntchito yogwira ntchito yapakati mpaka yapamwamba, kutentha kwambiri kapena yovuta (mapaipi m'mafakitale a mafuta, mankhwala ndi magetsi): Ma gasket a theka-chitsulo, makamaka ma gasket achitsulo, ndi omwe amasankhidwa kwambiri komanso odalirika.

Pa kutentha kwambiri komanso kupanikizika kwambiri kapena zinthu zowononga kwambiri: Ma gasket achitsulo (monga ma gasket ozungulira kapena ozungulira) ayenera kuganiziridwa, koma ndikofunikira kuonetsetsa kuti flange ikugwirizana bwino ndikuyiyika bwino.

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