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    I-Underground Gas Lines – X65 SSAW Steel Pipe

    I-Underground Gas Lines – X65 SSAW Steel Pipe Isithombe Esifakiwe
    • I-Underground Gas Lines – X65 SSAW Steel Pipe

    Incazelo emfushane:

    Sethula ipayipi lethu lensimbi le-SSAW, umkhiqizo wekhwalithi ephezulu odizayinelwe ukusetshenziswa okuhlukahlukene, ikakhulukazi amapayipi egesi yemvelo angaphansi komhlaba. Le payipi yomugqa we-X65 SSAW isetshenziswa kakhulu ekushiseleni amapayipi okuthutha uketshezi, izakhiwo zensimbi, isisekelo senqwaba, njll. Ngokusebenza kwayo okuphakeme nokuqina, lo mkhiqizo uthathwa njengokufanele ube nakho ezimbonini ezihlukahlukene namaphrojekthi wengqalasizinda.


    Imininingwane Yomkhiqizo

    Omaka bomkhiqizo

    Ipayipi elihlanganisiwe le-arc elihlanganisiwe liyingxenye ebalulekile yobunjiniyela bokuhlinzekwa kwamanzi, imboni ye-petrochemical, imboni yamakhemikhali, imboni yamandla kagesi, ukuchelela ngenkasa kwezolimo, kanye nokwakhiwa kwamadolobha. Ukuguquguquka kwayo kanye nokuthembeka kwayo kuyenze yaba ngomunye wemikhiqizo esemqoka engamashumi amabili ethuthukiswe ezweni lethu, okukhombisa ukubaluleka nomthelela wayo ezimbonini ezahlukahlukene.

    Ipayipi lensimbi le-SSAWyenzelwe ukuthuthwa koketshezi futhi ifaneleka kahle ekuhlinzekeni amanzi kanye nezinhlelo zokudonsa amanzi. Ukwakhiwa kwayo okuqinile kuyenza ibe ilungele ukuqinisekisa ukudluliswa koketshezi okusebenzayo nokuthembekile. Ngaphezu kwalokho, ilungele futhi ukuthuthwa kwegesi njengegesi yamalahle, umusi, kanye negesi ye-petroleum ewuketshezi. Amandla ayo aphezulu aqinile kanye nokumelana nokugqwala kuqinisekisa ukulethwa kwegesi okuphephile nokusebenza kahle futhi kuhlangabezana nezidingo eziqinile zezinhlelo zokulethwa kwegesi.

    Izakhiwo Eziyinhloko Zomzimba Nezamakhemikhali Zamapayipi Ensimbi (GB/T3091-2008, GB/T9711-2011 kanye ne-API Spec 5L)

    		        

    Okujwayelekile

    Ibanga Lensimbi

    Amakhemikhali (%)

    I-Tensile Property

    Ukuhlolwa Komphumela we-Charpy(V notch)
    c Mn p s Si

    Okunye

    I-Yield Strength (Mpa)

    Amandla Okuqina (Mpa)

    (L0=5.65 √ S0)(iminithi Lokunwetshwa Kwezinga) (%)
    ubuningi ubuningi ubuningi ubuningi ubuningi imiz ubuningi imiz ubuningi D ≤ 168.33mm D ＞ 168.3mm

    I-GB/T3091 -2008

    		 Q215A ≤ 0.15 0.25 ＜ 1.20 0.045 0.050 0.35

    Ingeza i-Nb\V\Ti ngokuvumelana ne-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

    I-GB/T9711-2011 (PSL1)

    		 L175 0.21 0.60 0.030 0.030  

    Uma ukhetha ukungeza enye yezinto ze-Nb\V\Ti nanoma iyiphi inhlanganisela yazo

    		 175   310  

    27

    Inkomba eyodwa noma ezimbili zokuqina kwamandla kanye nendawo yokugunda ingase ikhethwe. Nge-L555, bona indinganiso.
    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

    I-API 5L (PSL 1)

    		 A25 0.21 0.60 0.030 0.030  

    Okwensimbi yebanga B,Nb+V ≤ 0.03%;yensimbi ≥ grade B,ongakukhetha ukungeza i-Nb noma i-V noma inhlanganisela yakho, kanye ne-Nb+V+Ti ≤ 0.15%

    		 172   310  

    (L0=50.8mm) kufanele ibalwe ngokuvumelana nefomula elandelayo:e=1944·A0 .2/U0 .0 A:Indawo yesampula ku-mm2 U: Amandla amancane acacisiwe okubamba ku-Mpa

    Awekho noma amanye noma womabili amandla okuthinta nendawo yokugunda edingekayo njengombandela wokuqina.
    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

    Enye yezinhlelo zokusebenza eziyinhloko zamapayipi ethu ensimbi ashiselwe yi-arc ashiselweulayini wegesi ongaphansi komhlaba. Ngekhwalithi yayo ephezulu nokusebenza kwayo, kuyisinqumo sokuqala sokwakha amanethiwekhi okuhamba ngegesi yemvelo athembekile futhi aphephile.

    Ipayipi Lamanzi Elingaphansi Komhlaba

    Ipayipi lomugqa we-X65 SSAWyakhiwe ngezinto ezisezingeni eliphezulu eziqinisekisa amandla aphakeme nokuqina. Lokhu kuyenza ilungele izinhlelo zokusebenza ezidinga ingcindezi ephezulu kanye nokumelana nezinto zemvelo. Ukufaneleka kwayo ukufakwa ngaphansi komhlaba kuphinde kugqamise ukuklama kwayo okuqinile nekhono lokumelana nezimo eziyinselele, okuyenza ibe yisixazululo esikhethwayo samaphrojekthi wamapayipi egesi angaphansi komhlaba.

    Njengomkhiqizo othenjwayo nofakazelwe, amapayipi ethu ensimbi ayi-spiral arc ashiselwe asetshenziswa kabanzi kuzo zonke izimboni namaphrojekthi wengqalasizinda ngenxa yokusebenza kwawo okuphezulu, ukuqina nokuthembeka. Ukwakhiwa kwayo kwekhwalithi ephezulu kwenza kube yisinqumo sokuqala sezinhlelo zokuthutha uketshezi kanye negesi, ikakhulukazi kumzila wegesi ongaphansi komhlaba lapho ukuphepha nokusebenza kubalulekile.

    Ngamafuphi, ipayipi lensimbi elihlanganisiwe elingaphansi kwe-arc elishiselwe ngumkhiqizo omuhle kakhulu oklanyelwe ukuhlangabezana nezidingo ezihlukahlukene zokulethwa koketshezi kanye negesi. Ngenxa yokuguquguquka kwayo kanye nokwethembeka, isibe yingxenye enkulu ezimbonini nasezinhlelweni zengqalasizinda ehlukahlukene, ikakhulukazi ulayini wegesi ongaphansi komhlaba. Ikhwalithi yayo eyingqayizivele nokusebenza kwayo kuyenza ibe yimpahla ebalulekile ekuqinisekiseni inethiwekhi yokuthutha igesi ephumelelayo nephephile. Themba ukwethembeka nokusebenza kwamapayipi ethu ensimbi ashiselwe i-arc ashiselwe uketshezi kuzo zonke izidingo zakho zokuthutha uketshezi negesi.

     

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