Paipu kila humuhumu ʻoleHe ʻāpana kila lōʻihi ʻo e me kahi ʻāpana keʻa hakahaka a ʻaʻohe humuhumu a puni. Ma muli o ke ʻano kū hoʻokahi o kāna kaʻina hana, he ikaika kiʻekiʻe kona a me ke kūpaʻa maikaʻi i ke kaomi. ʻO nā paipu kila humuhumu i hoʻolauna ʻia i kēia manawa e komo pū ana me ʻelua mau mea a me nā kikoʻī: 15CrMoG grade, kikoʻī 325 × 14 a me12Cr1MoVGpapa, kikoʻī 325 × 10.

Nā ʻano a me nā hoʻohana o15CrMoGpaipu kila
He kila kila chromium-molybdenum ka 15CrMoG, ʻo nā ʻāpana kemika nui o ia mea e komo pū ana me ke kalapona (C), chromium (Cr), molybdenum (Mo), a pēlā aku. Loaʻa i kēia mea ka ikaika kiʻekiʻe, ke kūpaʻa maikaʻi i ka oxidation a me ke kūpaʻa wela kiʻekiʻe, ʻoi aku hoʻi i nā wahi wela kiʻekiʻe a me ke kaomi kiʻekiʻe. Eia kekahi, loaʻa iā 15CrMoG ka hana hoʻoheheʻe maikaʻi a me ka hiki ke hana.

Nā hoʻohana
ʻO nā paipu kila humuhumu ʻole i hana ʻia me 15CrMoG e hoʻohana nui ʻia no nā paipu wela kiʻekiʻe a me ke kaomi kiʻekiʻe a me nā lako, a hoʻohana nui ʻia ma nā kahua aʻe:

ʻOihana mana: nā superheaters paila, nā reheaters, nā poʻomanaʻo a me nā pipeline mahu nui i nā mea kanu mana wela.
ʻOihana kemika: nā ʻōnaehana paipu no nā reactors wela kiʻekiʻe i nā lako kemika.
ʻOihana ʻaila: nā paipu wela kiʻekiʻe a me nā mea hoʻololi wela i nā hale hoʻomaʻemaʻe.
Hiki i kēia paipu kila ke mālama i nā waiwai mechanical maikaʻi loa i nā mahana kiʻekiʻe, a kūpono loa ia no nā mahana hana lōʻihi ma waena o 500°C a me 580°C.
Nā ʻano a me nā hoʻohana ʻana o nā paipu kila 12Cr1MoVG
ʻO 12Cr1MoVG kahi kila kila chromium-molybdenum-vanadium kiʻekiʻe i hōʻailona ʻia e ka ikaika kiʻekiʻe, ke kūpaʻa kolo maikaʻi, a me ke kūpaʻa ikaika i ka pala a me ka oxidation. Ke hoʻohālikelike ʻia me 15CrMoG, hoʻohui ia i kahi liʻiliʻi o ka vanadium (V), kahi e hoʻomaikaʻi hou aku ai i kona kūpaʻa wela kiʻekiʻe a me ke kūpaʻa.
Nā hoʻohana
Hoʻohana pinepine ʻia nā paipu kila humuhumu ʻole i hana ʻia me 12Cr1MoVG i nā wahi mahana a me ke kaomi kiʻekiʻe, a ʻo kā lākou laulā noi e komo pū ana:
Kahua ikehu: nā superheaters wela kiʻekiʻe, nā reheater a me nā pipeline i loko o nā mea kanu mana wela a me nā mea kanu mana nukelea.
ʻOihana petrochemical: nā lako a me nā pipeline kemika wela kiʻekiʻe a me ke kaomi kiʻekiʻe.
Hana ʻana i ka paila: hana ʻana i nā ʻōmole paila kiʻekiʻe no nā mea hana me nā kaomi hana kiʻekiʻe.
He kūpono kēia ʻano paipu kila no ka hoʻohana lōʻihi ma nā mahana hana ma mua o 570°C a he kūpaʻa kolo ikaika loa a me ka ductility.
ʻO ka paipu kila 15CrMoG me kahi kikoʻī o 325 × 14 a me ka paipu kila 12Cr1MoVG me kahi kikoʻī o 325 × 10 he mau kikoʻī ponoʻī ko lākou. He mau paipu kila humuhumu hana kiʻekiʻe nā mea ʻelua a hoʻohana nui ʻia i nā ʻoihana wela kiʻekiʻe a me ke kaomi kiʻekiʻe e like me ka ikehu, nā petrochemical, a me nā kemika. Ma muli o ke kaiapuni hoʻohana, hiki i nā mea hoʻohana ke koho i kahi mea paipu kila kūpono e hoʻokō ai i nā pono hana.