ʻO ke koho pololei ʻana o nā paipu kila humuhumu he mea ʻike nui loa ia!

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

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

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

Paipu kila kalapona humuhumu ʻole

Papa kila mea: 10#、20#、09MnV、16Mnma nā ʻano 4

Kūlana:

Paipu kila humuhumu GB8163 no ka lawelawe wai

GB/T9711 Nā ʻoihana ʻaila a me ke kinoea kūlohelohe—Paipu kila no nā ʻōnaehana halihali paipu

Paipu kila humuhumu GB6479 kiʻekiʻe-kaomi no nā lako mea hoʻomomona

GB9948 Nā paipu kila humuhumu no ka haki ʻaila

Paipu kila humuhumu GB3087 no ka paila haʻahaʻa a me ka waena

GB/T5310 Nā paipu kila humuhumu a me nā paipu no ka paila kiʻekiʻe

GB/T8163: Papa kila mea: 10#, 20#, Q345, a pēlā aku.

Ka laulā o ka noi: ʻaila, ʻaila a me ke kinoea a me nā pāpaho lehulehu nona ka mahana hoʻolālā ma lalo o 350 ℃ a ʻo ke kaomi ma lalo o 10MPa.

GB6479: Mea kila Papa: 10#, 20G, 16Mn, a pēlā aku.

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

GB9948:

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

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

GB3087:

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

Ka laulā o ke noi: ka mahu wela nui a me ka wai e hoʻolapalapa ana no nā paila haʻahaʻa a me ke kaumaha.

GB5310:

Mea kila Papa: 20G etc.

Ka laulā o ka noi: ka wela wela o ka paila kiʻekiʻe

Nānā: Ma keʻano laulā, pono e hana ʻia nā paipu kila no ka lawe ʻana i nā wai i ka loiloi ʻano kemika, ka hoʻāʻo tensile, ka hoʻāʻo pālahalaha a me ka hoʻāʻo hydraulic. ʻO nā paipu kila maʻamau GB5310, GB6479, a me GB9948, me nā hoʻāʻo e pono ai ke hana ʻia ma nā paipu kila no ka lawe ʻana i nā wai, pono pū nā hoʻāʻo flaring a me nā hoʻāʻo hopena; he ʻano paʻa loa nā koi nānā hana no kēia mau paipu kila ʻekolu. Hana pū ke kūlana GB6479 i nā koi kūikawā no ka paʻakikī hopena haʻahaʻa o ka mea. Ma waho aʻe o nā koi hoʻāʻo maʻamau o nā paipu kila no ka lawe ʻana i nā wai, pono pū nā paipu kila o ke kūlana GB3087 i nā hoʻāʻo pelu anu. ʻO nā paipu kila maʻamau GB/T8163, me nā koi hoʻāʻo maʻamau no nā paipu kila lawe wai, e like me ka ʻaelike, koi ʻia ka hoʻāʻo hoʻonui a me ka hoʻāʻo pelu anu. ʻAʻole paʻa loa nā koi hana o kēia mau ʻano paipu ʻelua e like me nā ʻano mua ʻekolu.

Hana ʻana: Hoʻoheheʻe pinepine ʻia nā paipu kila maʻamau GB/T8163 a me GB3087 i loko o ke kapuahi hāmama a i ʻole ka mea hoʻololi, a he nui loa ko lākou haumia a me nā kīnā o loko. Hoʻohana nui ʻo GB9948 i ka hoʻoheheʻe ʻana i ka umu uila. Ua hui pū ka hapa nui o lākou i ke kaʻina hana hoʻomaʻemaʻe ma waho o ka umu, a he liʻiliʻi ka haku mele a me nā kīnā o loko. ʻO nā kūlana GB6479 a me GB5310 ponoʻī e hoʻopaʻa i nā koi no ka hoʻomaʻemaʻe ʻana ma waho o ka umu, me ka liʻiliʻi o ka haku mele haumia a me nā kīnā o loko, a me ke ʻano kiʻekiʻe loa o nā mea.

Koho: Ma keʻano laulā, kūpono ka paipu kila maʻamau GB/T8163 no ka ʻaila, ka ʻaila a me ke kinoea a me nā pāpaho lehulehu me ka mahana hoʻolālā ma lalo o 350°C a me ke kaomi ma lalo o 10.0MPa; no ka pāpaho ʻaila, ka ʻaila a me ke kinoea, ke ʻoi aku ka mahana hoʻolālā ma mua o 350°C A i ʻole ke ʻoi aku ke kaomi ma mua o 10.0MPa, pono e hoʻohana ʻia nā paipu kila maʻamau GB9948 a i ʻole GB6479; no nā paipu i hana ʻia ma ka hydrogen, a i ʻole nā ​​​​paipu e hana ana i nā wahi palupalu i ka corrosion stress, pono e hoʻohana ʻia nā kūlana GB9948 a i ʻole GB6479. Pono nā paipu kila kalapona a pau i hoʻohana ʻia ma nā mahana haʻahaʻa (ma lalo o -20°C) e hoʻohana i ke kūlana GB6479, a kuhikuhi wale ia i nā koi no ka paʻakikī o ka hopena haʻahaʻa o ka mea. ʻO nā kūlana GB3087 a me GB5310 he mau kūlana i hoʻonohonoho kūikawā ʻia no nā paipu kila paila. ʻO ke "Boiler Safety Supervision Regulations" ke kuhikuhi nei e pili ana nā paipu āpau i pili i ka paila i ka laulā o ka nānā ʻana, a ʻo ka hoʻopili ʻana o nā mea a me nā kūlana e pono e kūlike me nā koi o ka "Boiler Safety Supervision Regulations". No laila, hoʻohana ʻia lākou i loko o nā paila, nā kikowaena mana, nā hale hana hoʻomehana a me nā hale hana petrochemical. Pono nā paipu mahu lehulehu āpau (i hoʻolako ʻia e ka ʻōnaehana) e hoʻohana i nā kūlana GB3087 a i ʻole GB5310. He mea kūpono ke hoʻomaopopo ʻana he kiʻekiʻe ke kumukūʻai o nā paipu kila me nā kūlana paipu kila maikaʻi. No ka laʻana, ʻaneʻane 1/5 ke kiʻekiʻe o ke kumukūʻai o GB9948 ma mua o ke kumukūʻai o nā mea GB8163. No laila, i ke koho ʻana i nā kūlana mea paipu kila, pono e noʻonoʻo pono i nā kūlana o ka hoʻohana ʻana, pono e hilinaʻi a hoʻokele waiwai. Pono hoʻi e hoʻomaopopo ʻia ʻaʻole e hoʻohana ʻia nā paipu kila e like me nā kūlana GB/T20801 a me TSGD0001, GB3087 a me GB8163 no nā paipu GC1 (inā ʻaʻole ultrasonic kekahi, ʻaʻole haʻahaʻa ke ʻano ma mua o L2.5, a hiki ke hoʻohana ʻia no GC1 me ke kaomi hoʻolālā ʻaʻole i ʻoi aku ma mua o ka pipeline 4.0Mpa).

（二）Paipu kila humuhumu haʻahaʻa

I nā lako hana petrochemical, ʻo nā kūlana paipu kila chromium-molybdenum i hoʻohana pinepine ʻia a me ke kila chromium-molybdenum-vanadium ʻo GB9948 "Paipu kila humuhumu no ka haki ʻana o ka petroleum" GB6479 "Paipu kila humuhumu kiʻekiʻe no nā lako mea hoʻomomona" GB/T5310 "Paipu kila humuhumu no ka paila kaomi kiʻekiʻe》Loaʻa iā GB9948 nā papa mea kila chromium-molybdenum: 12CrMo, 15CrMo, 1Cr2Mo, 1Cr5Mo, a pēlā aku. ʻO nā papa mea kila chromium-molybdenum i hoʻokomo ʻia ma GB6479: 12CrMo, 15CrMo, 1Cr5Mo, a pēlā aku. Loaʻa iā GB/T5310 nā papa mea kila chromium molybdenum a me nā papa mea kila chromium molybdenum vanadium: 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, a pēlā aku. I waena o lākou, ʻo ka mea i hoʻohana pinepine ʻia ʻo GB9948, e nānā i luna no nā kūlana koho.

Paipu kila kila humuhumu ʻole

ʻO nā kūlana paipu kila kila maʻamau i hoʻohana ʻia:

ʻElima mau kūlana: GB/T14976, GB13296, GB9948, GB6479, a me GB5310. I waena o lākou, ʻelua a ʻekolu wale nō mau papa kila kila i helu ʻia ma nā kūlana ʻekolu hope loa, a ʻaʻole lākou he mau papa mea i hoʻohana pinepine ʻia.

No laila, i ka wā e hoʻohana ʻia ai nā kūlana paipu kila kila kila ʻole i ka ʻenekinia, hoʻohana nui ʻia nā kūlana GB / T14976 a me GB13296.

GB/T14976 “Paipu kila wili ʻole kila no ka lawe ʻana i ke wai”:

Nā māka mea: 304, 304L a me nā ʻano ʻē aʻe he 19 e kūpono no ka halihali wai maʻamau.

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

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

I waena o lākou, ʻo ke kila kila kila ultra-low-carbon (304L, 316L) he kūpaʻa maikaʻi loa i ka pala. Ma lalo o kekahi mau kūlana, hiki iā ia ke pani i ke kila kila paʻa (321, 347) no ke kūpaʻa i ka pala i ka media; ʻO ke kila kila ultra-low-carbon he haʻahaʻa nā waiwai mechanical wela kiʻekiʻe, maʻamau hoʻohana wale ʻia i nā mahana ma lalo o 525 ℃; Loaʻa i ke kila kila austenitic paʻa nā kūpaʻa maikaʻi i ka pala a me nā waiwai mechanical wela kiʻekiʻe, akā maʻalahi ka oxidized a nalowale ʻana o Ti i 321 i ka wā o ka wili ʻana, no laila e hōʻemi ana i kāna hana anti-corrosion, ʻoi aku ke kiʻekiʻe o kona kumukūʻai, hoʻohana nui ʻia kēia ʻano mea i nā manawa koʻikoʻi, 304, 316 he hana anti-corrosion maʻamau, haʻahaʻa ke kumukūʻai, no laila hoʻohana nui ʻia.