Agbara ti Pipe Welded Double ni Awọn ohun elo Iṣẹ
Double welded onihoti wa ni ti won ko pẹlu meji ominira welds lati fẹlẹfẹlẹ kan ti lagbara ati ki o gbẹkẹle asopọ laarin paipu ruju. Ilana alurinmorin meji yii ṣe idaniloju pe paipu naa le ṣe idiwọ awọn aapọn ati awọn igara ti o le ba pade lakoko iṣiṣẹ, ṣiṣe ni yiyan ti o gbẹkẹle fun awọn ohun elo to ṣe pataki nibiti ikuna kii ṣe aṣayan.
Ọkan ninu awọn anfani akọkọ ti awọn paipu ilọpo meji ni agbara wọn lati mu awọn agbegbe ti o ga-titẹ mu. Ilana alurinmorin ilọpo meji ṣẹda asopọ ti ko ni idọti ati ti o lagbara laarin awọn apakan paipu, ni idaniloju pe wọn le koju awọn titẹ inu inu laisi ewu ti n jo tabi ikuna. Eyi jẹ ki wọn jẹ apẹrẹ fun awọn ohun elo bii awọn opo gigun ti epo ati gaasi, nibiti iduroṣinṣin ti eto opo gigun ti epo jẹ pataki si ailewu ati ṣiṣe ṣiṣe.
Tabili 2 Akọkọ Ti ara ati Awọn ohun-ini Kemikali ti Awọn paipu Irin (GB/T3091-2008, GB/T9711-2011 ati API Spec 5L) | ||||||||||||||
Standard | Irin ite | Awọn eroja Kemikali (%) | Ohun-ini fifẹ | Charpy(V notch) Idanwo Ipa | ||||||||||
c | Mn | p | s | Si | Omiiran | Agbara Ikore (Mpa) | Agbara Fifẹ (Mpa) | (L0=5.65 √ S0) Oṣuwọn Nara iṣẹju (%) | ||||||
o pọju | o pọju | o pọju | o pọju | o pọju | min | o pọju | min | o pọju | D ≤ 168.33mm | D : 168.3mm | ||||
GB/T3091 -2008 | Q215A | ≤ 0.15 | 0.25 | 1.20 | 0.045 | 0.050 | 0.35 | Fifi NbVTi ni ibamu pẹlu 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 |
| Iyan fifi ọkan ninu awọn eroja NbVTi tabi eyikeyi akojọpọ wọn | 175 |
| 310 |
| 27 | Ọkan tabi meji ti itọka lile ti agbara ipa ati agbegbe irẹrun ni a le yan. Fun L555, wo boṣewa. | |
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 |
| Fun ite B irin, Nb + V ≤ 0.03%; fun irin ≥ ite B, iyan fifi Nb tabi V tabi apapo wọn, ati Nb + V + Ti ≤ 0.15% | 172 |
| 310 |
| (L0 = 50.8mm) lati ṣe iṣiro ni ibamu si agbekalẹ atẹle: e = 1944 · A0 .2/U0 .0 A: Agbegbe ti ayẹwo ni mm2 U: Agbara fifẹ to kere julọ ni Mpa | Ko si ọkan tabi eyikeyi tabi mejeeji ti agbara ipa ati agbegbe irẹrun ti a nilo bi ami-iṣaro lile. | |
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 |
Ni afikun si agbara rẹ, paipu welded ni ilopo tun ni anfani lati koju awọn iwọn otutu to gaju, ti o jẹ ki o dara fun ọpọlọpọ awọn ilana ile-iṣẹ. Boya gbigbe awọn fifa gbona tabi awọn gaasi, tabi ṣiṣẹ ni awọn agbegbe pẹlu awọn iwọn otutu ti n yipada, paipu welded meji n ṣetọju iduroṣinṣin igbekalẹ rẹ ati iṣẹ ṣiṣe, ni idaniloju iṣiṣẹ igbẹkẹle labẹ paapaa awọn ipo nija julọ.
Ni afikun, agbara ti paipu alurinmorin meji jẹ ki o jẹ yiyan idiyele-doko fun awọn ohun elo ile-iṣẹ. Agbara wọn lati koju yiya, ipata ati awọn ọna ibajẹ miiran tumọ si pe wọn nilo itọju kekere ati rirọpo, idinku awọn idiyele iṣẹ lapapọ ati akoko idinku.
Iwoye, lilo paipu welded meji pese ọpọlọpọ awọn anfani fun awọn ohun elo ile-iṣẹ, pẹlu agbara, agbara ati igbẹkẹle. Agbara wọn lati mu awọn igara giga, awọn iwọn otutu ati awọn ipo ayika ti o lagbara jẹ ki wọn jẹ apẹrẹ fun ọpọlọpọ awọn ile-iṣẹ lati epo ati gaasi si iṣelọpọ kemikali. Pẹlu iṣẹ ti a fihan ati igbasilẹ igbesi aye iṣẹ, paipu welded meji jẹ dukia to niyelori si eto fifin ile-iṣẹ eyikeyi.