Chinsinsi cha Bolt: Momwe Kupanikizika kwa Gasket Kumadalira Chiwerengero cha Bolt

Mapaipi achitsulo opangidwa ndi ductile, chifukwa cha mphamvu zawo zambiri, kulimba, komanso kukana dzimbiri, zakhala ntchito yovuta yotumizira madzi m'magawo osiyanasiyana, kuphatikizapo madzi a m'matauni, kugawa madzi m'mafakitale, ndi njira zotetezera moto. Chinsinsi cholumikizira mapaipi awa mu netiweki yodalirika nthawi zambiri chimakhala mu gawo looneka ngati losafunika koma lofunika kwambiri: gasket ya rabara pa malo olumikizirana a flange.

Anthu ambiri ogula mapaipi a DI amamvetsetsa kufunika kosankha mapaipi achitsulo apamwamba a EN598, koma nthawi zambiri amanyalanyaza tsatanetsatane wa makina otsekera olumikizirana. Ndipotu, mphamvu yonyamula mphamvu ya mawonekedwe a flange imadalira osati kokha makulidwe a khoma kapena zinthu za chitoliro chachitsulocho, komanso mtundu wa gasket ya rabara ndi kuchuluka kwa mabaluti oiteteza, zomwe pamodzi zimakhala mzere womaliza komanso wofunikira kwambiri wotetezera kuti mapaipi agwire ntchito bwino.

Choyamba, tiyeni timvetse gasket ya rabara yomwe imagwiritsidwa ntchito polumikizira ma flange. Imakanikizidwa pakati pa ma flange awiri ndipo cholinga chake chachikulu ndi:

• Kutseka kogwira mtima: Pogwiritsa ntchito bolt preload, imasinthasintha, kudzaza zolakwika zazing'ono kwambiri pamwamba pa flange ndikuletsa kutuluka kwa madzi amkati (madzi, mpweya, ndi zina zotero).
• Kulipira kupotoka: Kutenga kupotoka pang'ono kwa angular ndi zopinga zomwe zimachitika chifukwa cha kukhazikitsa kapena kukhazikitsa maziko, ndikutsimikizira chisindikizo chodalirika.
• Kuchepetsa kugwedezeka ndi kugwedezeka: Kumapereka kugwedezeka kwina ndi kuchepetsa phokoso, kuchepetsa mphamvu ya nyundo yamadzi kapena kusinthasintha kwa kuthamanga kwa mpweya pamakina a mapaipi.
• Ma gasket a rabara abwino kwambiri nthawi zambiri amapangidwa ndi zinthu monga EPDM kapena NBR. Amapereka kukana kwabwino kwa nyengo, kukana madzi, komanso kupirira kupsinjika, zomwe zimaonetsetsa kuti zikugwira ntchito bwino kwa nthawi yayitali ngakhale pakakhala zovuta.

N’chifukwa chiyani mabotolo ambiri amawonjezera kukana kuthamanga kwa magazi?

1. Kupanga kupanikizika kofanana komanso kokwanira kotseka. Kuchuluka kwa maboluti kumapanga mphamvu yokakamiza yolimba komanso yogawidwa mofanana pa mphete ya flange, motero kumaletsa kupsinjika kwakukulu kwamkati ndikuletsa kulephera kwa gasket komwe kumachitika chifukwa cha kupsinjika kosagwirizana.
2. Kulimba kwa Flange ndi kukana kupindika. Maboluti ambiri amapereka "malo othandizira" a flange, zomwe zimapangitsa kuti ikhale yolimba komanso yokana kupindika. Izi zimapangitsa kuti gasket ikanikize mofanana pamalo onse otsekera, zomwe zimapangitsa kuti chisindikizo chikhale cholimba ngakhale pamene chapanikizika kwambiri.
3. Mapangidwe ake amatsatira kwambiri miyezo yapadziko lonse lapansi monga ISO 2531 ndi EN 545. Miyezo iyi imalongosola momveka bwino kuchuluka kwa mabowo a bolt ndi mafotokozedwe a bolt a diameters osiyanasiyana a mapaipi (DN) ndi ma pressure ratings (PN).Mwachitsanzo, flange ya DN100 PN10 ikhoza kukhala ndi maboluti anayi. Flange ya DN100 PN16 ikhoza kukhala ndi maboluti asanu ndi atatu. Flange ya DN300 PN16 ingafunike maboluti 12 kapena 16.

Kuchuluka kwa mphamvu yogwirira ntchito kumafuna maboliti ambiri kuti atsimikizire kulumikizana kotetezeka.

Tikukhulupirira kuti nkhaniyi ikupatsani chidziwitso chofunikira kwa inu ndi gulu lanu. Ngati muli ndi mafunso ena okhudza kusankha zinthu kapena ukadaulo, chonde musazengereze kulankhulana nafe.DINSENGulu lathu la akatswiri aukadaulo lidzasangalala kukupatsani chithandizo.