ʻO ke koho kūpono o nā paipu kila ʻole he ʻike maoli!

He aha nā koi no ke koho ʻana i nā paipu kila ʻole no ka lawe ʻana i ka wai i hoʻohana mau ʻia i kā mākou ʻoihana hana? E nānā i ka hōʻuluʻulu manaʻo o kā mākou limahana pipeline kaomi:

ʻO nā paipu kila ʻole he mau paipu kila me ka ʻole o nā welds i hana ʻia e nā ʻano lapaʻau wela e like me ke hou ʻana a me ka ʻōwili wela.

Inā pono, hiki i ka paipu lapaʻau wela ke huki anu hou i ke ʻano makemake, ka nui a me ka hana. I kēia manawa, ʻo nā paipu kila ʻole (DN15-600) nā paipu i hoʻohana nui ʻia i nā mea hana petrochemical.

（一） Paipu kila Carbon ʻole

Mea kila kila:10#、20#、09MnV、16Mnma 4 ano

Kūlana:

ʻO GB8163 Paipu kila maʻemaʻe no ka lawelawe wai

GB/T9711 ʻOihana ʻaila a me ke kinoea maoli—Pula hao no nā ʻōnaehana kaʻa paipu

GB6479 High-pressure seamless kila paipu no nā mea hoʻomomona

GB9948 ʻO nā paipu kila maikaʻi ʻole no ka haki ʻana o ka ʻaila

GB3087 paipu kila maʻemaʻe no ka paila haʻahaʻa haʻahaʻa

GB/T5310 ʻO nā paipu kila maʻemaʻe a me nā paipu no ka paila kiʻekiʻe

GB/T8163: Mea kila kila: 10#, 20#, Q345, etc.

Ka laulā o ka noi: aila, aila a me ke kinoea a me ka lehulehu media nona ka mahana hoʻolālā ma lalo o 350 ℃ a ʻoi aku ka paʻakikī ma mua o 10MPa.

GB6479: Mea kila kila: 10#, 20G, 16Mn, etc.

Ka nui o ka noi: ka aila a me ke kinoea me ka mahana hoʻolālā -40～400 ℃ a me ke kaomi hoʻolālā 10.0～32.0MPa.

GB9948:

Mea kila kila: 10 #, 20 #, etc.

Ka laulā o ka noi: nā manawa kūpono ʻole ʻo GB/T8163 paipu kila.

GB3087:

Mea kila kila: 10 #, 20 #, etc.

Ka laulā o ka hoʻohana ʻana: ka mahu wela a me ka wai e hoʻolapalapa ai no nā paila haʻahaʻa a haʻahaʻa.

GB5310:

Mea kila kila: 20G etc.

Ka laulā o ka hoʻohana ʻana: superheated steam medium of high pressure boiler

Nānā: ʻO ka maʻamau o nā paipu kila no ka lawe ʻana i ka wai e pono e hoʻopaʻa ʻia i ka nānā ʻana i ka haku mele, ka hoʻāʻo tensile, ka hoʻāʻo ʻana a me ka hoʻāʻo hydraulic. ʻO GB5310, GB6479, a me GB9948 paipu kila maʻamau, me ka hoʻāʻo ʻana e pono e hana ʻia ma luna o nā paipu kila no ka lawe ʻana i ka wai, nā hoʻāʻo flaring a me nā hoʻokolohua hopena e koi pū ʻia; ʻO nā koi nānā hana hana no kēia mau paipu kila ʻekolu he koʻikoʻi. Hoʻokumu pū ka maʻamau GB6479 i nā koi kūikawā no ka hopena haʻahaʻa haʻahaʻa haʻahaʻa o ka mea. Ma kahi o nā koi hoʻāʻo maʻamau o nā paipu kila no ka lawe ʻana i ka wai, ʻo nā paipu kila o ka maʻamau GB3087 e koi pū kekahi i nā hoʻāʻo anu. ʻO nā paipu kila maʻamau GB/T8163, i ka hoʻohui ʻana i nā koi hoʻāʻo maʻamau no ka lawe ʻana i ka wai i nā paipu kila, e like me ka ʻaelike e koi ai i ka hoʻonui ʻana a me ka hoʻāʻo anu. ʻAʻole koʻikoʻi nā koi hana o kēia mau ʻano paipu ʻelua e like me nā ʻano mua ʻekolu.

Hana ʻia: ʻO GB / T8163 a me GB3087 nā paipu kila maʻamau i hoʻoheheʻe ʻia i ka kapuahi hāmama a i ʻole ka mea hoʻololi, a ʻoi aku ka nui o kā lākou mau haumia a me nā hemahema o loko. Hoʻohana nui ʻia ʻo GB9948 i ka hoʻoheheʻe ʻana i ka umu uila. ʻO ka hapa nui o lākou i hui pū me ka hana hoʻomaʻemaʻe ma waho o ka umu, a he liʻiliʻi ka haku mele a me nā hemahema o loko. ʻO nā kūlana GB6479 a me GB5310 lākou iho e kuhikuhi i nā koi no ka hoʻomaʻemaʻe ʻana i waho o ka umu, me ka liʻiliʻi o ka haumia a me nā hemahema o loko, a me ka mea kiʻekiʻe loa.

Koho: Ma keʻano laulā, kūpono ka paipu kila maʻamau GB / T8163 no kaʻaila, kaʻaila a me ke kinoea a me ka pāhana lehulehu me ka mahana hoʻolālā ma lalo o 350 ° C a me ke kaumaha o lalo o 10.0MPa; no ka aila, ka aila a me ke kinoea media, ke hoʻohana 'ia ka mahana hoʻolālā ma mua o 350 ° C A i ka wā iʻoi aku ka nui o ke kaomi ma mua o 10.0MPa, GB9948 a iʻole GB6479 mau paipu kila maʻamau; no nā paipu i hoʻohana ʻia i loko o ka hydrogen, a i ʻole nā ​​pipeline e hana ana i nā wahi e hoʻopilikia ai i ka corrosion, pono e hoʻohana ʻia nā kūlana GB9948 a i ʻole GB6479. ʻO nā paipu kila kalapona a pau i hoʻohana ʻia ma nā haʻahaʻa haʻahaʻa (ma lalo o -20 ° C) pono e hoʻohana i ka maʻamau GB6479, a ʻo ia wale nō ka mea e kuhikuhi i nā koi no ka haʻahaʻa haʻahaʻa haʻahaʻa hopena o ka mea. ʻO nā kūlana GB3087 a me GB5310 nā kūlana i hoʻonohonoho ponoʻia no nā paipu kila boiler. Hoʻomaopopo ka "Boiler Safety Supervision Regulations" i nā paipu a pau e pili ana i ka paila i ke ʻano o ka nānā ʻana, a ʻo ka hoʻohana ʻana i nā mea a me nā kūlana pono e hoʻokō me nā koi o ka "Boiler Safety Supervision Regulations". No laila, hoʻohana ʻia lākou i nā boilers, nā mana mana, nā mea hoʻomehana a me nā mea hana petrochemical. Pono nā paipu mahu āpau āpau (i hoʻolako ʻia e ka ʻōnaehana) i nā kūlana GB3087 a i ʻole GB5310. He mea pono e hoʻomaopopo i ke kumukūʻai o nā paipu kila me nā kūlana kiʻekiʻe o ke kila kila maikaʻi. Eia kekahi laʻana,ʻo ke kumukūʻai o GB9948 kokoke i ka 1/5 kiʻekiʻe ma mua o ke kumukūʻai o nā mea GB8163. No laila, i ke koho ʻana i nā kūlana waiwai o ka paipu kila, pono e noʻonoʻo pono i nā kūlana o ka hoʻohana ʻana, pono e hilinaʻi ʻia a ʻoi aku ka waiwai. Pono e hoʻomaopopoʻiaʻaʻole e hoʻohanaʻia nā paipu kila e like me GB / T20801 a me TSGD0001, GB3087 a me GB8163 no nā paipu GC1 (koe keʻano o ka ultrasonic,ʻaʻole i emi iho ka maikaʻi ma mua o L2.5, a hiki ke hoʻohanaʻia. hoʻohana ʻia no GC1 me ke kaomi hoʻolālā ʻaʻole i ʻoi aku ma mua o 4.0Mpa pipeline).

（二）ʻO ka paipu hao haʻahaʻa haʻahaʻa paipu kila ʻole

I nā lako hana petrochemical, ʻo ke kila chromium-molybdenum maʻamau a me ka chromium-molybdenum-vanadium steel seamless steel pipe standards he GB9948 "Seamless steel pipe for petroleum cracking" GB6479 "High-pressure seamless steel pipe for fertilizer equipment" GB/T5310 "Seamless. paipu kila no ka paila ki'eki'e》Aia i loko o GB9948 nā māka mea kila chromium-molybdenum: 12CrMo, 15CrMo, 1Cr2Mo, 1Cr5Mo, etc. ʻO nā māka mea kila chromium-molybdenum i komo i loko o GB6479: 12CrMo, 15CrMo, 1Cr5Mo, etc kila kila nā māka waiwai: 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, a pēlā aku.

（三） paipu kila kuhili ʻole

ʻO nā maʻamau maʻamau i hoʻohana ʻia i nā mea maʻamau i hoʻohana ʻia i ke kila kila ʻole.

ʻElima mau kūlana: GB/T14976, GB13296, GB9948, GB6479, a me GB5310. Ma waena o lākou, ʻelua wale nō a ʻekolu mau mea kila kila i helu ʻia ma nā pae hope ʻekolu, a ʻaʻole lākou i hoʻohana maʻamau ʻia i nā māka waiwai.

No laila, i ka wā e hoʻohana ʻia ai ke kila kila maʻemaʻe ma ka ʻenekinia, hoʻohana maoli ʻia nā kūlana GB / T14976 a me GB13296.

GB/T14976 "Stainless steel seamless steel pipe no ka lawe wai":

Nā māka waiwai: 304, 304L a me nā ʻano 19 ʻē aʻe i kūpono no ka lawe ʻana i ka wai maʻamau.

GB13296 "Nā paipu kila maʻemaʻe ʻole no nā paila a me nā mea hoʻololi wela":

Nā māka waiwai: 304, 304L a me nā ʻano 25 ʻē aʻe.

Ma waena o lākou, ʻoi aku ka maikaʻi o ka pale ʻana i ka corrosion. Ma lalo o kekahi mau kūlana, hiki iā ia ke hoʻololi i ke kila kuhili ʻole paʻa (321, 347) no ka pale ʻana i ka corrosion i ka media; ʻO ke kila kila ultra-low-carbon he haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa, maʻamau hoʻohana wale ʻia ma nā mahana ma lalo o 525 ℃; paʻa austenitic kuhiliʻole kila i ka maikaʻi corrosion kū'ē a me ke kiʻekiʻe wela mechanical waiwai, akā Ti i 321 ua maʻalahi oxidized a nalowale i ka wā welding , Pela e hoemi ana i kona anti-corrosion hana, kona kumu kūʻai mai kiʻekiʻe, keia 'ano o ka mea maʻamau i hoʻohana 'ia ma oi. ʻO nā manawa koʻikoʻi, 304, 316 ka hana anti-corrosion maʻamau, ʻoi aku ke kumukūʻai, no laila ua hoʻohana nui ʻia.