Ka ikaika o ka paipu huila pālua ma nā noi ʻoihana

Ka ikaika o ka paipu huila pālua ma nā noi hana ʻoihana kiʻi i hōʻike ʻia

ʻO ka wehewehe pōkole:

I ka honua o ka paipu ʻoihana, hiki i ke koho ʻana i nā mea a me nā ʻano hana ke hoʻoikaika nui i ka hana holoʻokoʻa a me ka lōʻihi o ka ʻōnaehana. ʻO kahi ala kaulana no kona ikaika a paʻa, ʻo ia ka hoʻohana ʻana i ka paipu pālua. Hoʻolālā ʻia kēia mau paipu e kū i nā koʻikoʻi kiʻekiʻe, nā wela wela a me nā kūlana kūlohelohe koʻikoʻi, e hoʻolilo iā lākou i mea kūpono no nā ʻano hana ʻenehana.

E hoʻouna i ka leka uila iā mākou

Huahana Huahana

Nā paipu wili pāluaua kūkulu ʻia me nā welds kūʻokoʻa ʻelua e hana i kahi pilina ikaika a hilinaʻi ma waena o nā ʻāpana paipu. ʻO kēia kaʻina hana kuʻi lua e hōʻoia i ka hiki i ka paipu ke pale i nā koʻikoʻi a me nā pilikia e ʻike ʻia i ka wā o ka hana ʻana, e lilo ia i koho hilinaʻi no nā noi koʻikoʻi inā ʻaʻole kahi koho.

ʻO kekahi o nā pōmaikaʻi nui o nā paipu pālua-welded ʻo ko lākou hiki ke mālama i nā kaiapuni kiʻekiʻe. Hoʻokumu ke kaʻina hana kuʻi lua i kahi pilina paʻa ʻole a paʻa ma waena o nā ʻāpana paipu, e hōʻoia ana e hiki iā lākou ke pale aku i nā kaomi o loko me ka ʻole o ka leaks a i ʻole ka hemahema. ʻO kēia ka mea i kūpono iā lākou no nā noi e like me ka aila a me ka pipeline gas, kahi i koʻikoʻi ai ka pono o ka ʻōnaehana pipeline i ka palekana a me ka hana pono.

Papa 2 Nā Pono Kino Kino a Kimika Nui o nā Paipu kila (GB/T3091-2008, GB/T9711-2011 a me API Spec 5L)
Kūlana	Papa kila	Nā mea hana kemika (%)						Waiwai Tensile						Charpy(V notch)Ho'āʻo Impact
		c	Mn	p	s	Si	'ē aʻe	Ka ikaika hua(Mpa)		Ikaika U'i（Mpa）		（L0=5.65 √ S0 ）min Ka lōʻihi lōʻihi (%）)
		max	max	max	max	max	'ē aʻe	min	max	min	max	D ≤ 168.33mm	D ＞ 168.3mm
GB/T3091 -2008	Q215A	≤ 0.15	0.25 ＜ 1.20	0.045	0.050	0.35	Hoʻohui i ka NbVTi e like me GB/T1591-94	215		335		15	> 31
	Q215B	≤ 0.15	0.25-0.55	0.045	0.045	0.035		215		335		15	> 31
	Q235A	≤ 0.22	0.30 ＜ 0.65	0.045	0.050	0.035		235		375		15	>26
	Q235B	≤ 0.20	0.30 ≤ 1.80	0.045	0.045	0.035		235		375		15	>26
	Q295A	0.16	0.80-1.50	0.045	0.045	0.55		295		390		13	>23
	Q295B	0.16	0.80-1.50	0.045	0.040	0.55		295		390		13	>23
	Q345A	0.20	1.00-1.60	0.045	0.045	0.55		345		510		13	>21
	Q345B	0.20	1.00-1.60	0.045	0.040	0.55		345		510		13	>21
GB/T9711-2011（PSL1）	L175	0.21	0.60	0.030	0.030		Hoʻohui i kekahi o nā mea NbVTi a i ʻole kekahi hui pū ʻana o ia mau mea	175		310		27		Hiki ke koho ʻia i hoʻokahi a i ʻole ʻelua o ka papa kuhikuhi ikaika o ka ikehu hopena a me ka ʻāpana ʻako. No L555, e nānā i ka maʻamau.
	L210	0.22	0.90	0.030	0.030			210		335		25
	L245	0.26	1.20	0.030	0.030			245		415		21
	L290	0.26	1.30	0.030	0.030			290		415		21
	L320	0.26	1.40	0.030	0.030			320		435		20
	L360	0.26	1.40	0.030	0.030			360		460		19
	L390	0.26	1.40	0.030	0.030			390		390		18
	L415	0.26	1.40	0.030	0.030			415		520		17
	L450	0.26	1.45	0.030	0.030			450		535		17
	L485	0.26	1.65	0.030	0.030			485		570		16
API 5L (PSL 1)	A25	0.21	0.60	0.030	0.030		No ke kila B, Nb+V ≤ 0.03%; no ke kila ≥ papa B, koho e hoʻohui iā Nb a i ʻole V a i ʻole kā lākou hui ʻana, a me Nb+V+Ti ≤ 0.15%	172		310		（L0=50.8mm）e helu ʻia e like me ke kumu hoʻohālike:e=1944·A0 .2/U0 .0 A: ʻAhi o ka laʻana ma mm2 U: Ka ikaika tensile liʻiliʻi ma Mpa		ʻAʻohe a i ʻole a ʻelua paha o ka ikehu hopena a me ka ʻāpana ʻako i koi ʻia ma ke ʻano o ka paʻakikī.
	A	0.22	0.90	0.030	0.030			207		331
	B	0.26	1.20	0.030	0.030			241		414
	X42	0.26	1.30	0.030	0.030			290		414
	X46	0.26	1.40	0.030	0.030			317		434
	X52	0.26	1.40	0.030	0.030			359		455
	X56	0.26	1.40	0.030	0.030			386		490
	X60	0.26	1.40	0.030	0.030			414		517
	X65	0.26	1.45	0.030	0.030			448		531
	X70	0.26	1.65	0.030	0.030			483		565

Ma waho aʻe o kona ikaika, hiki i ka paipu welded pālua ke pale i nā mahana wela, e kūpono ia no nā ʻano hana ʻoihana. ʻO ka lawe ʻana i nā wai wela a i ʻole ke kinoea, a i ʻole ka hana ʻana i nā kaiapuni me nā ʻano like ʻole, mālama ka paipu welded pālua i kona kūpaʻa a me ka hana, e hōʻoiaʻiʻo ana i ka hana pono ma lalo o nā kūlana paʻakikī loa.

Hoʻohui ʻia, ʻo ka lōʻihi o ka paipu welded pālua e lilo ia i koho kūpono no nā noi ʻoihana. ʻO ko lākou hiki ke pale i ka ʻaʻahu, corrosion a me nā ʻano hoʻohaʻahaʻa ʻē aʻe, ʻo ia ka mea e pono ai ka mālama liʻiliʻi a me ka hoʻololi ʻana, e hōʻemi ana i nā kumukūʻai hana holoʻokoʻa a me ka downtime.

Ma keʻano holoʻokoʻa, hāʻawi ka hoʻohana ʻana i ka paipu welded pālua i ka nui o nā pono no nā noi ʻoihana, me ka ikaika, ka lōʻihi a me ka hilinaʻi. ʻO ko lākou hiki ke mālama i nā koʻikoʻi kiʻekiʻe, nā wela wela a me nā kūlana kūlohelohe koʻikoʻi e kūpono iā lākou no ka nui o nā ʻoihana mai ka aila a me ke kinoea a hiki i ka hana kemika. Me kāna hana i hōʻoia ʻia a me ka moʻolelo ola lawelawe, ʻo ka paipu welded pālua he waiwai nui ia i nā ʻōnaehana paipu ʻoihana.