Imiyoboro ya Gazi yo munsi y'ubutaka – Umuyoboro w'icyuma wa X65 SSAW

Ibisobanuro bigufi:

Tubagezaho umuyoboro wacu mushya w’icyuma wa SSAW, ibicuruzwa byiza cyane byagenewe gukoreshwa mu buryo butandukanye, cyane cyane imiyoboro ya gaze karemano yo munsi y’ubutaka. Uyu muyoboro wa X65 SSAW ukoreshwa cyane mu gusudira imiyoboro itwara amazi, ibyuma, ishingiro ry’ibirundo, nibindi. Kubera imikorere myiza no kuramba, iki gicuruzwa gifatwa nk'ikintu cy'ingenzi mu nganda zitandukanye n'imishinga y'ibikorwa remezo.


Ibisobanuro birambuye ku gicuruzwa

Ibirango by'ibicuruzwa

Umuyoboro ukozwe mu buryo bw’umwuka uvanze n’amazi ni igice cy’ingenzi mu buhanga mu gutanga amazi, mu nganda zikora peteroli, mu nganda zikora imiti, mu nganda zikora ingufu z’amashanyarazi, mu kuhira imyaka no mu bwubatsi bw’imijyi. Uburyo bwinshi n’ubwizerwe byawugize kimwe mu bicuruzwa makumyabiri by’ingenzi byatejwe imbere mu gihugu cyacu, bigaragaza akamaro kawo n’ingaruka zawo ku nganda zitandukanye.

Umuyoboro w'icyuma wa SSAWYakorewe mu buryo bwihariye kugira ngo itware amazi kandi ikwiriye cyane imiyoboro y'amazi n'imiyoboro y'amazi. Imiterere yayo ikomeye ituma iba nziza cyane mu gutuma amazi yinjira neza kandi yizewe. Byongeye kandi, ikwiriye no gutwara gazi nka gaze y'amakara, umwuka w'ubushyuhe, na gaze ya peteroli. Ifite imbaraga nyinshi zo gukurura no kurwanya ingese bituma igera neza kandi ikora neza kandi ikujuje ibisabwa byose ku miyoboro y'amazi.

Imiterere y'ingenzi y'imiyoboro y'icyuma (GB/T3091-2008, GB/T9711-2011 na API Spec 5L)

       

Igisanzwe

Ingano y'icyuma

Ibinyabutabire (%)

Umutungo wo gukurura

Ikizamini cy'Ingaruka cya Charpy (V notch)

c Mn p s Si

Ibindi

Ingufu z'umusaruro (Mpa)

Imbaraga zo Gukurura (Mpa)

(L0=5.65 √ S0)Ingano y'iminota yo guhagarara (%)

umubare ntarengwa umubare ntarengwa umubare ntarengwa umubare ntarengwa umubare ntarengwa umunota umubare ntarengwa umunota umubare ntarengwa D ≤ 168.33mm D > 168.3mm

GB/T3091 -2008

Q215A ≤ 0.15 0.25 < 1.20 0.045 0.050 0.35

Kongeramo Nb\V\Ti hakurikijwe 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  

Urashobora kongeramo kimwe mu bintu bya Nb\V\Ti cyangwa ikindi kintu icyo ari cyo cyose kivanze

175   310  

27

Kimwe cyangwa bibiri by'ubukomere bw'ingufu z'ingaruka n'agace ko gukata bishobora guhitamo. Kuri L555, reba ibipimo ngenderwaho.

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  

Ku byuma byo mu rwego rwa B, Nb+V ≤ 0.03%; ku byuma byo mu rwego rwa B, kongeramo Nb cyangwa V cyangwa ibivanze byabyo, na Nb+V+Ti ≤ 0.15%.

172   310  

(L0=50.8mm)Igomba kubarwa hakurikijwe formula ikurikira:e=1944·A0 .2/U0 .0 A:Agace k'icyitegererezo muri mm2 U: Ingufu nkeya zagenwe zo gukurura muri Mpa

Nta na kimwe cyangwa byombi, ingufu z'ingaruka n'agace ko gukataho imashini bikenerwa nk'igipimo cy'ubukomere.

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

Imwe mu mikoreshereze y'ingenzi y'imiyoboro yacu y'icyuma ikoreshwa mu byuma bicukurwa mu buryo bw'umwuka niumurongo wa lisansi wo munsi y'ubutakaKubera ubwiza n'imikorere yayo ihebuje, ni yo mahitamo ya mbere yo kubaka imiyoboro yizewe kandi itekanye yo gutwara gazi karemano.

Umuyoboro w'amazi yo munsi y'ubutaka

Umuyoboro wa X65 SSAWyubatswe mu bikoresho byo mu rwego rwo hejuru bitanga imbaraga n'ubudahangarwa. Ibi bituma iba nziza cyane mu bikorwa bisaba umuvuduko mwinshi no kurwanya ibidukikije. Kuba ikwiriye gushyirwa mu butaka byerekana imiterere yayo ikomeye n'ubushobozi bwo kwihanganira imimerere igoye, bigatuma iba igisubizo cy'imishinga y'imiyoboro ya gazi yo munsi y'ubutaka.

Nk'igicuruzwa cyizewe kandi cyemejwe, imiyoboro yacu y'icyuma ikoreshwa mu byuma bicukurwa mu buryo bwa spiral ikoreshwa cyane mu nganda no mu mishinga y'ibikorwa remezo bitewe n'imikorere yayo myiza, kuramba kwayo no kwizerwa kwayo. Kuba ikora neza bituma iba amahitamo ya mbere mu gutwara ibintu biva mu mazi na gazi, cyane cyane mu muhanda wa gazi wo munsi y'ubutaka aho umutekano n'imikorere myiza ari ingenzi cyane.

Muri make, umuyoboro w'icyuma ukozwe mu buryo bwa spiral submerged arc ni umusaruro mwiza cyane wagenewe guhaza ibyifuzo bitandukanye by'uburyo bwo gutanga amazi na gaze. Bitewe n'uburyo bworoshye kandi bwizewe, wabaye igice gikomeye mu nganda zitandukanye n'imishinga y'ibikorwa remezo, cyane cyane umurongo wa gaze munsi y'ubutaka. Ubwiza n'imikorere yawo bidasanzwe bituma uba ingirakamaro mu kwemeza ko habaho umuyoboro mwiza kandi utekanye wo gutwara gaze. Izere ko imiyoboro yacu y'icyuma ikozwe mu buryo bwa spiral submerged arc submerged ikora neza kandi ku byo ukeneye byose byo gutwara amazi na gaze.

 


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