Kusiyana pakati pa kuwotcherera kokhazikika, cholumikizira chowotcherera chozungulira ndi cholumikizira chowotcherera chopangidwa kale mu kuwotcherera mapaipi

Kuwotcherera kozungulira kumafanana ndi kuwotcherera kosakhazikika mu kuwotcherera kwa mapaipi. Kuwotcherera kosasunthika kumatanthauza kuti cholumikizira chowotcherera sichingasunthe pambuyo poti gulu la chitoliro likugwirizana, ndipo kuwotcherera kumachitidwa molingana ndi kusintha kwa malo owotcherera (zopingasa, zowongoka, zokwera, ndi zapakati) panthawi yowotcherera.

Kutembenuza doko lowotcherera ndikuzungulira doko lowotcherera panthawi yowotcherera kuti wowotchererayo azitha kuchita kuwotcherera pamalo abwino (amodzi opingasa, ofukula, m'mwamba ndi pansi).

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M'malo mwake, kungolankhula chabe, cholumikizira chowotcherera chokhazikika ndi chowotcherera chowotcherera pamalopo, chomwe chimagwirizana ndi payipi yopangidwa kale.

Chowotcherera chokhazikika chimatanthawuza kuti chitoliro sichisuntha, ndipo wowotcherera amapanga kuwotcherera mozungulira, makamaka pamene njira yowotcherera ili pamwamba, njira yowotcherera imakhala yovuta kugwira ntchito, zofunikira za luso la wowotcherera zimakhala zapamwamba, ndipo zolakwika zimakhala zosavuta. kuchitika. Kawirikawiri, ntchito yomangayi ili pamtunda wa chitoliro;

Doko lozungulira ndi chitoliro chomwe chimatha kuzunguliridwa. Malo awotcherera kwenikweni ndi kuwotcherera lathyathyathya kapena ofukula kuwotcherera. Ntchito kuwotcherera ndi yabwino ndipo pali zolakwika zochepa. Amamangidwa pansi kapena pansi.

Pakuwunika kwa kuwotcherera, kuti aletse madoko onse ozungulira kuti asasankhidwe mwachisawawa kuti awonedwe, kuchuluka kwazomwe zimadutsa kumakhala kwakukulu, ndipo gawo lina la madoko okhazikika liyenera kuyang'aniridwa mwachisawawa kuti zitsimikizire mtundu wa kuwotcherera kwa payipi yonse. "Pressure Pipeline Safety Technology Supervision Regulations-Industrial Pipeline" imati chiŵerengero chozindikirika cha zolumikizira zowotcherera zokhazikika sichiyenera kuchepera 40%.

Nthawi zambiri, timagwiritsa ntchito doko lokhazikika ngati doko logwira ntchito. Doko logwira ntchito ndi cholumikizira chowotcherera chopangira chitoliro, ndipo gawo la chitoliro limatha kusunthidwa kapena kuzunguliridwa pamene chitolirocho chapangidwa kale kunja kwa malowo. Doko lokhazikika ndi khomo lolumikizidwa ndi malo pomwe chitoliro sichingasunthidwe kapena kuzunguliridwa.

M'mapaipi aatali atali, amatchedwa "kugunda kwakufa", ndipo pamafunika kuti "kuwunika kwa radiographic 100% kuchitike". Mbali yowotcherera yakufa ndiyovuta, ndipo mtundu wa kuwotcherera sikophweka kutsimikizira.

Ma welds okhazikika amafanana ndi ma welds ozungulira.

The kasinthasintha kuwotcherera olowa zikutanthauza kuti kuwotcherera momasuka atembenuza olowa kuwotcherera momasuka ngodya womasuka wa ntchito kuwotcherera pa prefabricated ndondomeko kuwotcherera wa payipi, ndi kuwotcherera khalidwe ndi wolimba, kotero kuwotcherera ngati mtundu wa kuwotcherera olowa.

Komabe, chifukwa cha zofunikira za malo kapena zikhalidwe za workpiece palokha, kuwotcherera olowa ena workpieces akhoza anakonza, amene amatchedwa okhazikika kuwotcherera olowa. Pamene anakonza kuwotcherera olowa anaika ndi welded, pali njira imodzi yokha kuwotcherera olowa. Kuwotcherera kwamtunduwu kumakhala kovuta kuwotcherera, ndipo gawo la kuyesa kosawononga ndilokwera.

Muzinthu zina zomangira mapaipi, gawo la kuzindikira kowotcherera kosasunthika limafotokozedwa momveka bwino. Chifukwa ma angles a welds osasunthika ndi osiyana, kuwotcherera pamanja kumasinthasintha, ndipo mtundu wa welds umakhudzidwa pamlingo wina. Mwachitsanzo, ma welds osasunthika a mapaipi achitsulo amafuna kuti ma welders azichita zinthu zonse, zomwe zimafuna zofunika kwambiri zowotcherera. Zoonadi, njirayo ndi yapamwamba komanso luso lapamwamba kwambiri. Wowotchera wabwino zilibe kanthu.

Poyang'anira ntchito yomanga, chiwerengero cha zotseguka zokhazikika ziyenera kuchepetsedwa momwe zingathere. Kumbali imodzi, khalidwe la kuwotcherera likhoza kuwongoleredwa, ndipo panthawi imodzimodziyo, chiwerengero cha kutsegulira chikhoza kuchepetsedwa kuti chichepetse ndalama.