Spiral Welded Steel Pipe For Underground Natural Gas Pipe

Tsegulani:

Mapaipi a gasi apansi panthaka amagwira ntchito yofunika kwambiri popereka chuma chamtengo wapatali chimenechi m’nyumba, m’mabizinesi ndi m’mafakitale.Kuonetsetsa kuti mapaipiwa ali otetezeka komanso otetezeka, ndikofunikira kugwiritsa ntchito zida zoyenera komanso njira zowotcherera pakumanga.Tidzafufuza kufunikira kwa chitoliro chachitsulo chowotcherera ndi kufunikira kotsatira njira zoyenera zowotcherera pogwira ntchitopansi pa nthaka gasi chitoliro.

Spiral welded pipe:

Spiral welded pipe ndi yotchuka popanga mapaipi apansi panthaka chifukwa cha mphamvu zake komanso kulimba kwake.Mapaipi ameneŵa amapangidwa mwa kupinda chitsulo chosalekeza n’kukhala chozungulira n’kuchiwotchera m’mphepete mwa nsongazo.Zotsatira zake ndi mapaipi okhala ndi zolumikizira zolimba, zotsekedwa zomwe zimatha kupirira zovuta zakunja zakunja ndikusinthira kumayendedwe apansi.Kapangidwe kapadera kameneka kamapangawozungulira welded zitsulo chitoliroabwino kwa mapaipi apansi panthaka komwe kukhazikika ndikofunikira.

Mechanical Property

Chemical Composition

Kuyesedwa kwa Hydrostatic

Utali uliwonse wa chitoliro uyenera kuyesedwa ndi wopanga ku mphamvu ya hydrostatic yomwe idzapangitse mukhoma wa chitoliro kupsinjika kosachepera 60% ya mphamvu zokolola zosachepera zomwe zafotokozedwa kutentha.Kupanikizika kumatsimikiziridwa ndi equation yotsatirayi:
P=2St/D

Kusiyanasiyana Kololedwa Pakulemera ndi Makulidwe

Utali uliwonse wa chitoliro uyenera kuyezedwa padera ndipo kulemera kwake sikuyenera kusiyana kuposa 10% kuposa kapena 5.5% pansi pa kulemera kwake, kuwerengeredwa pogwiritsa ntchito kutalika kwake ndi kulemera kwake pa kutalika kwake.
Kuzungulira kwakunja sikuyenera kusiyanasiyana kupitilira ± 1% kuchokera m'mimba mwake mwadzina.
Makulidwe a khoma nthawi iliyonse sayenera kupitirira 12.5% ​​pansi pa makulidwe omwe atchulidwa.

Utali

Kutalika kwachisawawa chimodzi: 16 mpaka 25ft (4.88 mpaka 7.62m)
Kutalika kwapawiri: kupitirira 25ft mpaka 35ft(7.62 mpaka 10.67m)
Utali wofanana: kusiyanasiyana kovomerezeka ±1in

Kutha

Milu ya mipope iyenera kukhala ndi malekezero omveka, ndipo ma burrs kumapeto kwake adzachotsedwa.
Pamene mapeto a chitoliro amatchulidwa kuti ndi bevel amatha, ngodya iyenera kukhala 30 mpaka 35 digiri

Njira zowotcherera mapaipi:

Zoyeneranjira kuwotcherera mapaipindizofunika kwambiri pakukhalitsa ndi chitetezo cha mapaipi a gasi apansi panthaka.Nazi zinthu zingapo zofunika kuziganizira:

1. Zoyezetsa zowotcherera:Owotcherera oyenerera komanso odziwa zambiri ayenera kulembedwa ntchito, kuwonetsetsa kuti ali ndi ziphaso ndi ukadaulo wowongolera njira zowotcherera zomwe zimafunikira pamapaipi a gasi.Izi zimathandizira kuchepetsa chiwopsezo cha zovuta zowotcherera komanso kutayikira komwe kungachitike.

2. Kukonzekera pamodzi ndi kuyeretsa:Kukonzekera koyenera kophatikizana ndikofunikira musanayambe kuwotcherera.Izi zikuphatikizapo kuchotsa zinyalala, zinyalala kapena zowonongeka zomwe zingasokoneze kukhulupirika kwa weld.Kuonjezera apo, kugwedeza m'mphepete mwa mipope kumathandiza kupanga mgwirizano wolimba kwambiri.

3. Njira zowotcherera ndi magawo:Njira zowotcherera zolondola ziyenera kutsatiridwa kuti mupeze ma welds apamwamba kwambiri.The kuwotcherera ndondomeko ayenera kuganizira zinthu monga chitoliro makulidwe, kuwotcherera udindo, mpweya zikuchokera, etc. Ndi bwino kugwiritsa ntchito makina kuwotcherera njira monga mpweya zitsulo arc kuwotcherera (GMAW) kapena kumizidwa arc kuwotcherera (SAW) kuonetsetsa zotsatira zogwirizana ndi kuchepetsa anthu. cholakwika.

4. Kuyang'anira ndi Kuyesa:Kuyang'ana mozama ndikuyesa kwa weld ndikofunikira kuti mutsimikizire mtundu wake komanso kukhulupirika kwake.Tekinoloje monga kuyesa kosawononga (NDT), kuphatikiza kuyesa kwa X-ray kapena kuyesa kwa akupanga, kumatha kuzindikira zolakwika zilizonse zomwe zingasokoneze kudalirika kwanthawi yayitali kwa payipi.

Pomaliza:

Kupanga mapaipi apansi panthaka pogwiritsa ntchito spiral welded steel pipe kumafuna kutsata njira zoyenera zowotcherera mapaipi.Polemba ntchito owotcherera oyenerera, kukonza mfundo mosamala, kutsatira njira zoyenera zowotcherera, ndi kufufuza bwinobwino, tingathe kutsimikizira kuti mipopeyi ndi yotetezeka, yolimba komanso yogwira ntchito bwino.Kupyolera mwatsatanetsatane mwatsatanetsatane powotcherera, titha kupereka molimba mtima gasi kuti tikwaniritse zosowa zamphamvu za madera athu ndikuyika patsogolo thanzi la chilengedwe komanso chitetezo cha anthu.