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    I-Spiral Seam Pipes Emapayipi Amanzi Ayinhloko

    I-Spiral Seam Pipes Emapayipi Amanzi Ayinhloko Isithombe Esifakiwe
    • I-Spiral Seam Pipes Emapayipi Amanzi Ayinhloko

    Incazelo emfushane:

    Ekwakhiweni kwengqalasizinda, izinto ezisetshenziswayo zidlala indima ebalulekile ekuphileni isikhathi eside nasekusebenzeni kwephrojekthi.Enye impahla ebalulekile embonini yengqalasizinda ipayipi elishiselwe eligobile.Lawa mapayipi asetshenziswa kakhulu ezintweni ezehlukene njengamapayipi ahambisa amanzi kanye namapayipi egesi, futhi imininingwane yawo, okuhlanganisa amapayipi athungelwayo ashiselwe nayi-spiral, ibalulekile ekuqinisekiseni ukusebenza kwawo.Kule bhulogi, sizobheka kabanziukucaciswa kwepayipi elishiselwe okuvunguza nokubaluleka kwazo embonini yezokwakha.


    Imininingwane Yomkhiqizo

    Omaka bomkhiqizo

    Ekwakhiweni kwengqalasizinda, izinto ezisetshenziswayo zidlala indima ebalulekile ekuphileni isikhathi eside nasekusebenzeni kwephrojekthi.Enye impahla ebalulekile embonini yengqalasizinda ipayipi elishiselwe eligobile.Lawa mapayipi asetshenziswa kakhulu ezintweni ezehlukene njengamapayipi ahambisa amanzi kanye namapayipi egesi, futhi imininingwane yawo, okuhlanganisa amapayipi athungelwayo ashiselwe nayi-spiral, ibalulekile ekuqinisekiseni ukusebenza kwawo.Kule bhulogi, sizobheka kabanziukucaciswa kwepayipi elishiselwe okuvunguzanokubaluleka kwazo embonini yezokwakha.

    Sipayipi lomthungo we-piralszakhiwe kusetshenziswa indlela ebizwa ngokuthi i-spiral welding process.Le nqubo ihilela ukusebenzisa amakhoyili ensimbi agoqelwe ashisayo ukuze akheke abe isilinda bese eshiselwa ngomthungo o-spiral.Umphumela uba ipayipi elinamandla amakhulu nokuqina, okwenza lifanele uhla olubanzi lwezinhlelo zokusebenza.Lamapayipi asetshenziswaithubhu elishiselweubuchwepheshe ngesikhathi sokwakhiwa, ukuqinisekisa ukuthi amelana nezimo ezihlukahlukene zemvelo kanye nezingcindezi, okwenza kube kuhle ukusetshenziswa ngaphansi komhlaba nangaphansi kwamanzi.

    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 Lokukala Lokunwebeka) (%)
    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 yezinga 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 okubamba acacisiwe 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

    Uma ucubungula imininingwane yepayipi le-spiral seam, kubalulekile ukugxila ezintweni ezibalulekile ezifana nobubanzi, ubukhulu bodonga kanye nebanga lezinto ezibonakalayo.Ububanzi bepayipi bunquma amandla ayo okuthutha uketshezi noma igesi, kuyilapho ukushuba kodonga kudlala indima ebalulekile ekuqineni kwesakhiwo nokumelana nokucindezela.Ukwengeza, ibanga lezinto ezibonakalayo limelela ikhwalithi nokubunjwa kwensimbi esetshenzisiwe futhi kuwukucatshangelwa okubalulekile ekuqinisekiseni isikhathi eside nokusebenza kwepayipi kuhlelo lokusebenza olunikeziwe.

    Ekwakhiweni kweamapayipi amanzi amakhulu, amapayipi e-spiral seam anezinzuzo eziningi.Amandla azo aqinile aqinile nokumelana nokugqwala kuwenza alungele ukuthutha amanzi amabanga amade, kuyilapho ukuguquguquka kwawo kuvumela ukufakwa kalula eduze kwezithiyo nasezindaweni eziyinselele.Ukwengeza, ukusetshenziswa kwamapayipi e-spiral seam kumapayipi egesi yemvelo kuqinisekisa ukuthuthwa kwegesi yemvelo okuphephile nokusebenza kahle, okuhlinzeka ngomthombo obalulekile wezindawo zokuhlala, ezohwebo nezimboni.

    ipayipi lensimbi elivunguzayo

    Ngasohlangothini lwengqalasizinda, ukucaciswa kwamapayipi othungelwano oluzungezayo kulawulwa amazinga nemithetho yemboni ukuqinisekisa ikhwalithi nokusebenza kwawo.Isibonelo, i-American Petroleum Institute (API) ithuthukise amazinga okwenziwa nokusetshenziswa kwepayipi elinomthungo eliveza izidingo zosayizi, amandla, nezinqubo zokuhlola.Ngaphezu kwalokho, i-American Society for Testing and Materials (ASTM) ihlinzeka ngokwakheka kwezinto ezibonakalayo kanye nokucaciswa kwempahla eyimishini kumapayipi othungelwano oluyi-spiral ukuze kuqhutshekwe nokuqinisekisa ukuthembeka kwawo nokuhambisana nezindinganiso zomkhakha.

    Kafushane, ukucaciswa kwamapayipi ashiselwe ku-spiral kubalulekile endimeni yawo ekwakhiweni kwengqalasizinda.Ukuthi isetshenziselwa amapayipi amanzi nomaimigqa yegesi, lawa mapayipi anikeza amandla angenakuqhathaniswa, ukuqina nokuguquguquka, okuwenza abaluleke kakhulu ezweni lanamuhla.Ngokunamathela ezindinganisweni neziqondiso zezimboni, ukusetshenziswa kwamapayipi othungo oluzungezayo kuqinisekisa ukuphepha nokusebenza kahle kwezinhlelo zengqalasizinda ezibalulekile, kuvula indlela yentuthuko esimeme kanye nenqubekelaphambili yomphakathi.

     

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