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    Imibhobho yomthungo eSpiral yeeMibhobho zaManzi eziphambili

    Imibhobho yomthungo eSpiral yeMibhobho yaManzi ePhambili eFakelwe umfanekiso
    • Imibhobho yomthungo eSpiral yeeMibhobho zaManzi eziphambili

    Inkcazelo emfutshane:

    Kulwakhiwo lweziseko zophuhliso, izinto ezisetyenzisiweyo zidlala indima ebalulekileyo kwixesha elide kunye nokusebenza kweprojekthi.Enye imathiriyeli eyimfuneko kushishino lweziseko ezingundoqo ngumbhobho odityanisiweyo.Le mibhobho idla ngokusetyenziswa kwiintlobo ngeentlobo zezicelo ezifana nemibhobho yamanzi kunye nemibhobho yerhasi, kwaye iinkcukacha zayo, eziquka i-welded kunye ne-spiral seam pipes, zibalulekile ekuqinisekiseni ukusebenza kwazo.Kule blog, siza kujonga nzulu kwiumbhobho odityanisiweyo ojikelezayo nokubaluleka kwazo kushishino lokwakha.


    Iinkcukacha zeMveliso

    Iithegi zeMveliso

    Kulwakhiwo lweziseko zophuhliso, izinto ezisetyenzisiweyo zidlala indima ebalulekileyo kwixesha elide kunye nokusebenza kweprojekthi.Enye imathiriyeli eyimfuneko kushishino lweziseko ezingundoqo ngumbhobho odityanisiweyo.Le mibhobho idla ngokusetyenziswa kwiintlobo ngeentlobo zezicelo ezifana nemibhobho yamanzi kunye nemibhobho yerhasi, kwaye iinkcukacha zayo, eziquka i-welded kunye ne-spiral seam pipes, zibalulekile ekuqinisekiseni ukusebenza kwazo.Kule blog, siza kujonga nzulu kwiumbhobho odityanisiweyo ojikelezayonokubaluleka kwazo kushishino lokwakha.

    Sumbhobho wephiral seamszakhiwa kusetyenziswa indlela ebizwa ngokuba yi-spiral welding process.Le nkqubo ibandakanya ukusebenzisa iikhoyili zentsimbi ezisongelwe shushu ukuze zenziwe zibe yimilo eyicylindrical zize zidityaniswe ngomthungo ojikelezayo.Isiphumo singumbhobho onamandla aphezulu kunye nokuqina, okwenza ukuba ilungele uluhlu olubanzi lwezicelo.Le mibhobho isebenzisaityhubhu edityanisiweyoiteknoloji ngexesha lokwakha, ukuqinisekisa ukuba baxhathisa kwizinto ezahlukeneyo zokusingqongileyo kunye noxinzelelo, okwenza kube lula ukusetyenziswa phantsi komhlaba nangaphantsi kwamanzi.

    IiPropati eziPhambili zoMzimba kunye neMichiza yeMibhobho yentsimbi (GB/T3091-2008, GB/T9711-2011 kunye ne-API Spec 5L)

    		        

    Umgangatho

    IBanga leNsimbi

    Amalungu eMichiza (%)

    Ipropati ye-Tensile

    Charpy(V notch)Uvavanyo lweMpembelelo
    c Mn p s Si

    Okunye

    Isivuno Amandla (Mpa)

    Amandla Okuqina (Mpa)

    (L0=5.65 √ S0)(umzuzu wokuTlula umlinganiselo (%)
    max max max max max imiz max imiz max D ≤ 168.33mm D ＞ 168.3mm

    I-GB/T3091 -2008

    		 Q215A ≤ 0.15 0.25 ＜ 1.20 0.045 0.050 0.35

    Ukongeza i-Nb\V\Ti ngokuhambelana 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

    GB/T9711-2011 (PSL1)

    		 L175 0.21 0.60 0.030 0.030  

    Ngokuzithandela ukongeza enye yezinto ze-Nb\V\Ti okanye nayiphi na indibaniselwano yazo

    		 175   310  

    27

    Isinye okanye ezimbini zesalathiso sokuqina samandla empembelelo kunye nendawo yokucheba inokukhethwa.Kwi-L555, bona umgangatho.
    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  

    Kwibakala B intsimbi,Nb+V ≤ 0.03%;yentsimbi ≥ ibakala B,ukongeza iNb okanye V okanye indibaniselwano yabo, kunye Nb+V+Ti ≤ 0.15%

    		 172   310  

    (L0=50.8mm) iya kubalwa ngokwale fomyula ilandelayo:e=1944·A0 .2/U0 .0 A: Ummandla wesampulu kwi-mm2 U: Ubuncinane obukhankanyiweyo bokuqina bokuqina kwiMpa

    Akukho nanye okanye nayiphi na okanye zombini amandla empembelelo kunye nendawo yokucheba efunekayo njengenqobo yokugweba yokuqina.
    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

    Xa uqwalasela iinkcukacha zombhobho we-spiral seam, kubalulekile ukugxila kwizinto eziphambili ezifana nobubanzi, ubukhulu bodonga kunye nebakala lezinto eziphathekayo.Ububanzi bombhobho bumisela amandla ayo okuthutha ulwelo okanye igesi, ngelixa ubukhulu bodonga budlala indima ebalulekileyo kwingqibelelo yesakhiwo kunye nokumelana noxinzelelo.Ukongezelela, ibakala lezinto eziphathekayo limele umgangatho kunye nokubunjwa kwensimbi esetyenzisiweyo kwaye yinto ebalulekileyo yokuqwalaselwa ekuqinisekiseni ixesha elide kunye nokusebenza kombhobho kwisicelo esinikezelweyo.

    Kulwakhiwo lweimibhobho yamanzi engundoqo, imibhobho ye-spiral seam ineengenelo ezininzi.Amandla abo aphezulu kunye nokumelana nomhlwa kubenza balungele ukuthutha amanzi kwimigama emide, ngelixa ukuguquguquka kwabo kuvumela ukufakwa lula kwimiqobo kunye nakwimimandla ecela umngeni.Ukongeza, ukusetyenziswa kwemibhobho ye-spiral seam kwimibhobho yegesi yendalo iqinisekisa ukuthuthwa okukhuselekileyo nokufanelekileyo kwegesi yendalo, ukubonelela ngomthombo obalulekileyo kumacandelo okuhlala, amashishini kunye nezoshishino.

    umbhobho wentsimbi ejikelezayo

    Kwicala leziseko zophuhliso, iinkcukacha zemibhobho ye-spiral seam zilawulwa yimigangatho yeshishini kunye nemimiselo yokuqinisekisa umgangatho kunye nokusebenza kwazo.Ngokomzekelo, i-American Petroleum Institute (API) iphuhlise imigangatho yokwenziwa kunye nokusetyenziswa kombhobho we-spiral-seam ochaza iimfuno zobukhulu, amandla, kunye neenkqubo zokuvavanya.Ukongeza, i-American Society for Testing and Materials (ASTM) ibonelela ngokuqulunqwa kwezinto eziphathekayo kunye neenkcukacha zepropathi zoomatshini kwimibhobho yomthungo ojikelezayo ukuqhubela phambili ukuqinisekisa ukuthembeka kunye nokuthotyelwa kwemigangatho yoshishino.

    Ngamafutshane, iinkcukacha zemibhobho edityanisiweyo ibalulekile kwindima yabo kulwakhiwo lweziseko ezingundoqo.Nokuba isetyenziselwa ukuhambisa amanzi okanyeimigca yegesi, le mibhobho inika amandla angenakulinganiswa, ukuqina kunye nokuguquguquka, okwenza kube yimfuneko kwihlabathi lanamhlanje.Ngokuthobela imigangatho yoshishino kunye nemimiselo, ukusetyenziswa kwemibhobho ye-spiral seam iqinisekisa ukhuseleko kunye nokusebenza kakuhle kweenkqubo ezibalulekileyo zeziseko ezingundoqo, ukuhlahlela indlela yophuhliso oluzinzileyo kunye nenkqubela phambili yoluntu.

     

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