Carbon steel welded pombi zvinonyanya kukamurwa kuita matatu maitiro: yemagetsi kuramba welding (RW), spiral submerged arc welding (SSAW) uye yakatwasuka musono yakanyura arc welding (LSAW). Iyo kabhoni simbi yakakwenenzverwa mapaipi anogadzirwa neaya matatu maitiro ane nzvimbo yawo mumunda wekushandisa nekuda kweakasiyana mbishi, maitiro ekuumba, caliber saizi uye mhando.

1. Straight musono electric resistance welded pombi (ERW)

Magetsi anopokana welded pombi ndiyo yekutanga mhando yesimbi pombi yakagadzirwa munyika yangu, iine huwandu hwakakura hwekushandisa, huwandu hukuru hwezvikamu zvekugadzira (zvinopfuura zviuru zviviri), uye yakanyanya kubuda (inoverengera inosvika makumi masere muzana ehuwandu hwekugadzira. wepombi dzakasungwa). Chigadzirwa chinotsanangurwa ndeye Ф20 ~ 610mm. akaita basa rinokosha. Kubva kuma1980, angangoita makumi matatu seti dzeERW219-610mm zvikamu zvakaunzwa kubva kunze kwenyika. Mushure memakore ekudzidzira kugadzira, iyo tekinoroji tekinoroji yakafambira mberi zvikuru, uye mhando yechigadzirwa iri kuramba ichivandudza. Nekuda kwekudyara kwayo kwakaderera, kukurumidza kuita uye yakakura application renji, yakagadzira nekukurumidza. Nekuvandudzwa kweplate CSP yekugadzira maitiro, inopa yakaderera-mutengo, yakavimbika mhando yezvigadzirwa, uye inogadzira mamiriro akanaka ekuenderera mberi kwayo mune ramangwana. Ichi chikamu chezvigadzirwa chakagadziridzwa kubva kumunda wekufambisa kwemvura uye chimiro kune pombi yemafuta pombi uye pombi yemutsetse mumunda wekushandisa pombi isina musono.

2. Spiral undermerged arc welded pipe (SSAW)

Iyo midziyo yekudyara ye spiral yakanyura arc welded pombi ishoma, nekuti kushandiswa kwemutengo wakaderera nhete strip (ndiro) coil inoramba ichiita welding kugadzira hombe-diameter (Ф1016 ~ 3200mm) welded pombi, maitiro ekugadzira ari nyore, mutengo wekushandisa uri yakaderera, uye ine mukana wekushanda kwakaderera. nyika yangu oiri uye gasi kutapurirana spiral welded pombi yakagadzira chimiro chakanyanya kubva pafekitori yepombi yesimbi yakabatana nepetroleum system. Kutora matekinoroji epamberi senge yakaderera residual stress kuumba uye pombi kupera mechanical kuwedzera, mhando yepiral welded pombi iyo yakanyatso kudzora mhando inofananidzwa neiyo yeyakatwasuka seam welded pombi. Ndiyo mhando yepombi huru inoshandiswa munyika yangu kureba kwemafuta uye gasi pombi mapurojekiti. Kugadzirwa kwayo kwakakwanisa kuzadzisa zvinodiwa nenyika yangu yekufamba kwepombi yemafuta negasi, uye yakatengeswa kunze kwenyika yakawanda.

3. Musono wakatwasuka wakanyura arc welded pombi (LSAW)

Longitudinal yakanyura arc welding inyanzvi yekugadzira pombi yakagadziridzwa yakanonoka munyika yangu, uye tekinoroji yeUOE yainyanya kushandiswa kare. Mumakore achangopfuura, JCOE inofambira mberi zvishoma nezvishoma yave imwe tekinoroji nyowani munyika yangu nepasirese. Longitudinal undermerged arc welded mapombi ndeemhando yakavimbika uye anoshandiswa zvakanyanya mu-high-pressure oiri uye gasi ekufambisa trunk mitsara. Nekuda kwekudyara kwakakura kweiyi welded pombi unit, iyo mbishi inoshandiswa ingori imwe yakakura uye yakakora ndiro ine mutengo wakakwira, maitiro acho akaomarara, kugadzirwa kwakanaka kwakaderera, uye mutengo wechigadzirwa wakakwira.