No ka mea kūpono loa ka lawe ʻana i ka ʻaila no ka lawe ʻana i ka aila, gas, no laila, ua hoʻohana nui ʻia ka pipeline i ka ʻaila a me ka ʻoihana petrochemical.ʻO ka hui petrifaction Corporation makahiki makahiki 120000000 T, hoʻohana nui ʻia e ka pipeline;hana makahiki o ka mahu, lanahu, diesel 5000 miliona tona, o 80% me ka pipeline lawe;ʻO ka ʻoihana ʻoihana petrochemical, ka mīkini o ka wai a i ʻole nā ​​​​mea kemika kemika o ka lawe ʻana ma o ka pipeline e hoʻopau.No laila, ʻo nā ʻoihana petrochemical i kūkulu ʻia i kēlā me kēia makahiki a i ka hana ʻana a me ka hoʻoponopono ʻana, pono e hoʻohana i ka nui o ka paipu kila.Akā, no ka mea, o ka petrochemical hana hana ua ikeia e ke kiʻekiʻe wela a me ke kiʻekiʻe puʻe, flammable a me ka pahū, no laila, no ka hoʻohana 'ana i ke kila paipu koi loa koʻikoʻi.

kū pololeipaipu kila wiliwilihooulu ana

I kēia mau makahiki i hala iho nei, aia kahi paipu kila maʻemaʻe kiʻekiʻe kiʻekiʻe o ka honua e hoʻololi i ke ʻano hoʻomohala kiʻekiʻe, ʻo ka mea nui ma muli o ka welded pipe production ʻenehana e holomua mau ana, i hōʻike ʻia ma nā ʻano aʻe:

(1) ʻenehana desulfurization, i hoʻemi ʻia ka ʻike sulfur o ke kila, hoʻomaikaʻi i ka maikaʻi kuʻi ʻana o ka paipu kila.

(2) ʻenehana degassing vacuum, hoʻomaikaʻi i ka hoʻomaʻemaʻe ʻana o ka tube blank steel, hoʻemi i nā inclusions, hoʻomaikaʻi ka maikaʻi o ka weld seam.

(3) ma muli o ka hoʻohui ʻana o V, Ti, Nb a me nā mea kūikawā ʻē aʻe, e hōʻemi i ke kalapona like, hoʻomaikaʻi ʻia ka paʻakikī kila, ikaika a me nā waiwai ʻē aʻe.

(4) ka hoʻomohala ʻana o ka ʻenehana hoʻoheheʻe wela wela, hoʻonui i ka pololei o ka dimensional, no laila ka emi ʻana o ka nui o ka paipu.

(5) pono e hoʻohana i ka hoʻomaikaʻi ʻana i nā ʻano loiloi maikaʻi, e like me ka ultrasonic nondestructive testing, hydrostatic testing machine a me nā mea hana ʻē aʻe, e hōʻoia i ka maikaʻi o ka huahana hope.

Hoʻohana ʻia ka paipu kila kuʻi kū pololei i ka ʻoihana petrochemical

ʻO ke koho ʻana o nā ʻoihana Petrochemical i ka paipu kila ma muli o ke kau ʻana i kekahi kaomi, hoʻohana maʻamau i ka wai me ka paipu kila ʻole.Uila kūpaʻa welded paipu a me ka wai me ka seamless kila paipu okoa, loaʻa ike waiwai waiwai, nui hōʻike ma: emi hoʻokomo kālā;kiʻekiʻe ka mechanization, automation degree;ka hoʻohana haʻahaʻa ʻana i ka ikehu (ka hoʻokumu ʻana o ka lumi wela, a me ka paipu kila maʻemaʻe no ka hoʻoheheʻe ʻana a i ʻole ke kiʻi anu);he haʻahaʻa ke kumukūʻai hana, no ka mea, ʻo ka paipu kila maʻemaʻe ma kahi o 2 \/3;hana mau, huahana kiʻekiʻe a kiʻekiʻe.Ua hoʻomaka ka ʻoihana paipu longitudinal welded ma Kina i ka 50's, hoʻomaka i ka lohi, hoʻohālikelike ʻia ke kaʻina hana a me ka ʻenehana a hoʻomohala ʻia, hoʻokomo ʻia i ka ʻokoʻa nui loa.ʻO ka hapa nui o nā lako ʻenehana ʻoihana ʻole, nele i nā ala e pono ai ka ʻike ʻana, akā i ka maikaʻi ʻole o ke kāʻei pōkole, haiki e like me ka mea maka, ua hoʻoulu ʻia nā huahana paipu welded me ka liʻiliʻi liʻiliʻi, haʻahaʻa haʻahaʻa haʻahaʻa, ʻaʻole kūpono ke ʻano o ka huahana, welded. ʻO ka hana paipu i 80% hiki ke hoʻohana wale ʻia e like me ka wai haʻahaʻa haʻahaʻa e lawe ana i ka paipu wai lanahu, nā ʻano paipu kūikawā haʻahaʻa haʻahaʻa.Keia 'ano o ka haʻahaʻa kuʻihao lako a me ka 'enehana pae, e hana ana i ka