Spiral welded pipe (SSAW) kuchotsa dzimbiri ndi anticorrosion ndondomeko yoyambira: Kuchotsa dzimbiri ndi gawo lofunikira la njira yoletsa kuwononga mapaipi. Pakalipano, pali njira zambiri zochotsera dzimbiri, monga kuchotsa dzimbiri pamanja, kuphulika kwa mchenga ndi kuchotsa dzimbiri, etc. Pakati pawo, kuchotsa dzimbiri pamanja, kuchotsa dzimbiri kumakina ndi kupenta kuchotsa dzimbiri (anti-corrosion brushing oil) ndizofala kwambiri. kuchotsa njira.

1. Kusokoneza pamanja

Chotsani sikelo ndi kuponya mchenga padziko mipope, zida ndi muli ndi scraper ndi wapamwamba, ndiyeno ntchito waya burashi kuchotsa zoyandama dzimbiri padziko mipope, zida ndi muli, ndiye kupukuta ndi sandpaper, ndipo potsiriza misozi. iwo ndi thonje silika. ukonde.

2. Kuchotsa dzimbiri pamakina

Choyamba gwiritsani ntchito scraper kapena fayilo kuchotsa sikelo ndi kuponya mchenga pamwamba pa chitoliro; ndiye munthu mmodzi ali kutsogolo kwa makina ochepetsera ndipo winayo ali kumbuyo kwa makina ochepetsera, ndipo chitolirocho chimachepetsedwa mobwerezabwereza mu makina otsika mpaka mtundu weniweni wachitsulo ukuwonekera; Musanapaka mafuta, pukutaninso ndi silika wa thonje kuti muchotse phulusa loyandama pamwamba.

3. Anti- dzimbiri burashi mafuta

Mapaipi, zida ndi mavavu a chidebe nthawi zambiri amakhala odana ndi dzimbiri komanso opaka mafuta malinga ndi kapangidwe kake. Ngati palibe kufunikira kopanga, malamulo otsatirawa ayenera kutsatiridwa:

a. Mapaipi okwera pamwamba, zida ndi zotengera ziyenera kupakidwa utoto ndi penti imodzi yoletsa dzimbiri, kenako malaya awiri apamwamba ayenera kupakidwa utoto asanaperekedwe. Ngati pali zofunikira zotetezera kutentha ndi anti-condensation, malaya awiri a utoto wotsutsa dzimbiri ayenera kupakidwa utoto;

b. Pentani mapenti awiri a utoto woletsa dzimbiri pamapaipi obisika, zida ndi zotengera. Chovala chachiwiri cha utoto wotsutsa dzimbiri chiyenera kupakidwa utoto woyamba utauma kwathunthu, ndipo kugwirizana kwa utoto wotsutsa dzimbiri kuyenera kukhala koyenera;

3. Pamene payipi yokwiriridwa ikugwiritsidwa ntchito ngati wosanjikiza wotsutsana ndi dzimbiri, ngati imamangidwa m'nyengo yozizira, ndi bwino kugwiritsa ntchito mafuta osungunulira mphira kapena mafuta oyendetsa ndege kuti asungunuke 30 A kapena 30 B petroleum asphalt. Mitundu iwiri:

① Kutsuka pamanja: burashi pamanja kuyenera kuyikidwa mu zigawo, ndipo gawo lililonse liyenera kubwezeredwa, kuwoloka, ndipo zokutira ziyenera kusungidwa yunifolomu osasowa kapena kugwa;

② Kupopera mbewu mankhwalawa pamakina: Kutuluka kwa utoto wopopera kuyenera kukhala kolunjika pamalo opaka utoto popopera mbewu mankhwalawa. Pamene utoto pamwamba ndi lathyathyathya, mtunda pakati pa nozzle ndi pamwamba penti ayenera kukhala 250-350mm. Ngati malo opaka utoto ndi arc, mtunda wa pakati pa mphuno ndi utoto wopaka utoto uyenera kukhala pafupifupi 400mm. , Pamene kupopera mbewu mankhwalawa, kuyenda kwa nozzle kuyenera kukhala yunifolomu, liwiro liyenera kusungidwa pa 10-18m / min, ndi mpweya woponderezedwa womwe umagwiritsidwa ntchito popopera utoto uyenera kukhala 0.2-0.4MPa.