Ipayipi Lensimbi Ehlanganisiwe Ehlanganisiwe Yepayipi Legesi Yemvelo Engaphansi Komhlaba

Ipayipi Lensimbi Ehlanganisiwe Ejikelezayo Yepayipi Legesi Yemvelo Elingaphansi Komhlaba Isithombe Esifakiwe

Incazelo emfushane:

Le ncazelo ihlanganisa amazinga amahlanu epayipi lensimbi elihlanganisiwe elenziwe ngogesi elihlanganisiwe (i-arc). Leli payipi lenzelwe ukudlulisa uketshezi, igesi noma umhwamuko.

Ngemigqa yokukhiqiza engu-13 yamapayipi ensimbi ajikelezayo, i-Cangzhou Spiral Steel pipes group Co., Ltd. iyakwazi ukukhiqiza amapayipi ensimbi ane-helical-seam anobubanzi obungaphandle obusukela ku-219mm kuya ku-3500mm kanye nobukhulu bodonga obufika ku-25.4mm.

Sithumelele i-imeyili

Imininingwane Yomkhiqizo

Amathegi Omkhiqizo

Yethula:

Amapayipi egesi yemvelo angaphansi komhlaba adlala indima ebalulekile ekuletheni lo mthombo oyigugu emakhaya, emabhizinisini nasezimbonini. Ukuqinisekisa ukuphepha nokusebenza kahle kwala mapayipi, kubalulekile ukusebenzisa izinto ezifanele kanye nezinqubo zokushisela ngesikhathi sokwakha. Sizohlola ukubaluleka kwepayipi lensimbi elishisiwe elijikelezayo kanye nokubaluleka kokulandela izinqubo ezifanele zokushisela amapayipi lapho usebenza neipayipi legesi yemvelo elingaphansi komhlaba.

Ipayipi elihlanganisiwe elijikelezayo:

Ipayipi elihlanganisiwe elijikelezayo lidumile ekwakhiweni kwamapayipi egesi yemvelo angaphansi komhlaba ngenxa yamandla alo angokwemvelo nokuqina. Lawa mapayipi akhiqizwa ngokugoba ucezu lwensimbi oluqhubekayo lube yisimo esijikelezayo bese luhlanganiswa ngemithungo. Umphumela uba amapayipi anezihlanganisi eziqinile, ezivalekile ezingamelana nezingcindezi ezinkulu zangaphandle futhi zivumelane nokunyakaza komhlaba. Lesi sakhiwo esiyingqayizivele senzaipayipi lensimbi elihlanganisiwe eliyindilingailungele amapayipi angaphansi komhlaba lapho ukuzinza kubaluleke khona.

Impahla Yomshini

	Ibanga A	Ibanga B	Ibanga C	Ibanga D	Ibanga E
Amandla okukhiqiza, i-min, i-Mpa(KSI)	330(48)	415(60)	415(60)	415(60)	445(66)
Amandla okudonsa, i-min, i-Mpa(KSI)	205(30)	240(35)	290(42)	315(46)	360(52)

Ukwakheka Kwamakhemikhali

Isici	Ukwakheka, Okuphezulu, %
Isici	Ibanga A	Ibanga B	Ibanga C	Ibanga D	Ibanga E
Ikhabhoni	0.25	0.26	0.28	0.30	0.30
I-Manganese	1.00	1.00	1.20	1.30	1.40
I-Phosphorus	0.035	0.035	0.035	0.035	0.035
I-Sulphur	0.035	0.035	0.035	0.035	0.035

Ukuhlolwa Kwamanzi

Ubude bepayipi ngalinye kufanele buhlolwe ngumenzi ngengcindezi ye-hydrostatic ezokhiqiza odongeni lwepayipi ukucindezeleka okungaphansi kuka-60% wamandla amancane okukhiqiza ashiwo ekushiseni kwegumbi. Ukucindezela kuzonqunywa yi-equation elandelayo:
P=2St/D

Izinguquko Ezivumelekile Ezisindweni Nasezilinganisweni

Ubude bepayipi ngalinye kufanele bulinganiswe ngokwehlukana futhi isisindo salo akumele sihluke ngaphezu kuka-10% noma u-5.5% ngaphansi kwesisindo salo esicatshangelwayo, esibalwa kusetshenziswa ubude balo kanye nesisindo salo ngobude beyunithi ngayinye.
Ububanzi bangaphandle akumele buhluke ngaphezu kuka-±1% kobubanzi obujwayelekile bangaphandle obubekiwe.
Ubukhulu bodonga nganoma yisiphi isikhathi akumele bube ngaphezu kuka-12.5% ngaphansi kobukhulu bodonga obubekiwe.

Ubude

Ubude obungahleliwe obubodwa: 16 kuya ku-25ft (4.88 kuya ku-7.62m)
Ubude obuphindwe kabili obungahleliwe: ngaphezu kwamafidi angu-25 kuya ku-35 (7.62 kuya ku-10.67m)
Ubude obufanayo: ukuhlukahluka okuvunyelwe ±1in

Ukuphela

Izinqwaba zamapayipi kumele zifakwe iziphetho ezingenalutho, bese kuthi izimbobo ezisemaphethelweni zisuswe.
Uma ukuphela kwepayipi okuchazwe ukuthi kube yiziphetho ze-bevel, i-engeli kufanele ibe ngama-degree angu-30 kuya kwangu-35.

Izinqubo zokushisela amapayipi:

Okufaneleizinqubo zokushisela amapayipizibalulekile ekuqineni nasekuphepheni kwamapayipi egesi yemvelo angaphansi komhlaba. Nazi izici ezimbalwa ezibalulekile okufanele uzicabangele:

1. Iziqu zomshiseli:Kufanele kuqashwe abashiseli abafanelekayo nabanolwazi, baqinisekise ukuthi banezitifiketi kanye nobuchwepheshe obudingekayo bokusingatha izinqubo ezithile zokushisela ezidingekayo kumapayipi egesi yemvelo. Lokhu kusiza ukunciphisa ingozi yokukhubazeka kokushisela kanye nokuvuza okungenzeka.

2. Ukulungiswa nokuhlanza amalunga:Ukulungiswa kahle kwamalunga kubalulekile ngaphambi kokushisela. Lokhu kuhlanganisa ukususa noma yikuphi ukungcola, imfucumfucu noma izinto ezingcolisayo ezingathinta kabi ubuqotho beshidi. Ngaphezu kwalokho, ukugoba imiphetho yamapayipi kusiza ekwakheni ishidi eliqinile elishisiwe.

3. Amasu okushisela kanye nemingcele:Kumelwe kulandelwe amasu okushisela afanele kanye nemingcele ukuze kutholakale ukushisela kwekhwalithi ephezulu. Inqubo yokushisela kufanele icabangele izici ezifana nobukhulu bepayipi, indawo yokushisela, ukwakheka kwegesi, njll. Kunconywa ukusebenzisa izinqubo zokushisela ezenzakalelayo ezifana nokushisela insimbi yensimbi yegesi (GMAW) noma ukushisela i-arc engaphansi komhlaba (SAW) ukuqinisekisa imiphumela ehambisanayo nokunciphisa amaphutha omuntu.

4. Ukuhlolwa Nokuhlolwa:Ukuhlolwa okuphelele nokuhlolwa kwe-weld kubalulekile ukuqinisekisa ikhwalithi nobuqotho bayo. Ubuchwepheshe obufana nokuhlolwa okungabhubhisi (NDT), okuhlanganisa ukuhlolwa kwe-X-ray noma kwe-ultrasonic, bungabona noma yiziphi iziphambeko ezingaba khona ezingabeka engcupheni ukuthembeka kwesikhathi eside kwepayipi.

Ekuphetheni:

Ukwakhiwa kwamapayipi egesi yemvelo angaphansi komhlaba kusetshenziswa ipayipi lensimbi elihlanganisiwe elijikelezayo kudinga ukuhambisana nezinqubo ezifanele zokushisela amapayipi. Ngokuqasha abashiseli abafanelekayo, ukulungiselela ngokucophelela amajoyinti, ukulandela amasu okushisela afanele, nokwenza ukuhlolwa okuphelele, singaqinisekisa ukuphepha, ukuqina, kanye nokusebenza kahle kwala mapayipi. Ngokunaka ngokucophelela imininingwane enqubweni yokushisela, singaletha igesi yemvelo ngokuzethemba ukuze ihlangabezane nezidingo zamandla zemiphakathi yethu ngenkathi sibeka phambili inhlalakahle yemvelo kanye nokuphepha komphakathi.