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    Ipayipi Lomthungo Ojikelezayo Elisezingeni Eliphezulu

    Isithombe Esivelele Sepayipi Lomthungo Ojikelezayo Lekhwalithi Ephezulu
    • Ipayipi Lomthungo Ojikelezayo Elisezingeni Eliphezulu

    Incazelo emfushane:

    Ipayipi lethu lomthungo eliyindilinga elisezingeni eliphezulu lifanelekela izinhlelo zokusebenza ezahlukahlukene, okuhlanganisa ukwakhiwa, uwoyela negesi, kanye nokuthuthwa kolwandle. Ngenxa yamandla alo aphezulu nokuqina kwalo, lenzelwe ukumelana nengcindezi nokumelana nokugqwala, okwenza libe yisisombululo esihlala isikhathi eside sezidingo zakho zamapayipi.


    Imininingwane Yomkhiqizo

    Amathegi Omkhiqizo

    Sethula ipayipi lethu elinomucu ojikelezayo osezingeni eliphezulu, umkhiqizo obonisa amandla, ukuqina kanye nobunjiniyela bokunemba. Enziwe kusetshenziswa inqubo yokushisela ejikelezayo ethuthukisiwe, amapayipi ethu akhiqizwa ngamakhoyili ensimbi ashiswayo akhiwe ngokucophelela abe yisimo esiyindilinga futhi ashiselwe eceleni komthungo ojikelezayo. Le ndlela entsha yokukhiqiza ayigcini nje ngokuthuthukisa ubuqotho besakhiwo samapayipi, kodwa futhi iqinisekisa ukuthi angakwazi ukumelana nezicelo ezidinga kakhulu.

    Enkampanini yethu, siyaziqhenya ngokuzibophezela kwethu okungapheli ekwanelisekeni kwamakhasimende. Eminyakeni edlule, sakhe idumela lokwenza kahle ngokubeka phambili izidingo zamakhasimende ethu kuzo zonke izigaba zenqubo yokuthenga. Kusukela ekubonisaneni ngaphambi kokuthengisa kuya ekusekelweni kokuthengisa kanye nezinsizakalo eziphelele ngemuva kokuthengisa, sizibophezele ekuhlangabezaneni nazo zonke izidingo zamakhasimende ethu. Le ndlela egxile kumakhasimende isitholele ukwethenjwa nokwethembeka kwamakhasimende ethu, ahlala ekwazisa ikhwalithi yemikhiqizo yethu kanye nokuthembeka kwezinsizakalo zethu.

    Ikhwalithi yethu ephezuluipayipi lomthungo ojikelezayoifaneleka ezinhlotsheni ezahlukene zezicelo, okuhlanganisa ukwakhiwa, uwoyela negesi, kanye nokuthuthwa kolwandle. Ngenxa yamandla ayo aphezulu nokuqina kwayo, yenzelwe ukumelana nengcindezi nokumelana nokugqwala, okwenza ibe yisisombululo esihlala isikhathi eside sezidingo zakho zamapayipi.

    Ukucaciswa Komkhiqizo

     

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

    		        

    Okujwayelekile

    Ibanga Lensimbi

    Izakhi Zamakhemikhali (%)

    Impahla Eqinile

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

    Okunye

    Amandla Okukhiqiza (i-Mpa)

    Amandla Okuqina (i-Mpa)

    （L0=5.65 √ S0）Isilinganiso Sokwelula esincane （%）
    ubuningi ubuningi ubuningi ubuningi ubuningi umzuzu ubuningi umzuzu ubuningi U-D ≤ 168.33mm U-D ＞ 168.3mm

    GB/T3091 -2008

    		 Q215A ≤ 0.15 0.25 ＜ 1.20 0.045 0.050 0.35

    Ukungeza i-NbVTi ngokuhambisana 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  

    Ukwengeza okukodwa kwezinto ze-NbVTi noma noma iyiphi inhlanganisela yazo ngokuzithandela

    		 175   310  

    27

    Kungakhethwa eyodwa noma ezimbili zenkomba yokuqina kwamandla omthelela kanye nendawo yokugunda. Ku-L555, bheka 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  

    Ngensimbi yebanga B, i-Nb+V ≤ 0.03%; ngensimbi ≥ ibanga B, ukwengeza i-Nb noma i-V noma inhlanganisela yazo ngokuzithandela, kanye ne-Nb+V+Ti ≤ 0.15%

    		 172   310  

    （L0=50.8mm）ukubalwa ngokwefomula elandelayo:e=1944·A0 .2/U0 .0 A:Indawo yesampula ku-mm2 U: Amandla amancane okudonsa acacisiwe ku-Mpa

    Akukho noma yikuphi noma kokubili amandla okushaya kanye nendawo yokugunda okudingekayo njengenqubo 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
    I-X46 0.26 1.40 0.030 0.030   317 434
    X52 0.26 1.40 0.030 0.030   359 455
    I-X56 0.26 1.40 0.030 0.030   386 490
    I-X60 0.26 1.40 0.030 0.030   414 517
    I-X65 0.26 1.45 0.030 0.030   448 531
    X70 0.26 1.65 0.030 0.030   483 565

     

    Inzuzo Yomkhiqizo

    1. Enye yezinzuzo eziyinhloko zepayipi lomthungo elijikelezayo amandla alo amahle kakhulu. Inqubo yokushisela ejikelezayo ivumela ukushisela okuqhubekayo, ngaleyo ndlela ithuthukise ubuqotho besakhiwo sepayipi. Lokhu kuyenza ibe yindawo ekahle yokuthutha uketshezi namagesi ngaphansi komfutho ophezulu.

    2. Inqubo yokukhiqiza iyasebenza kahle, ivumela amapayipi amade ukuthi akhiqizwe ngaphandle kwesidingo samajoyinti, okungaba yizindawo ezingaba buthaka.

    3. Enye inzuzo ebalulekile yeipayipi lomthungo eliyindilingayikhono layo lokuguquguquka. Zingakhiqizwa ngobubanzi obuhlukahlukene kanye nobukhulu bodonga ukuze zisetshenziswe ngezindlela eziningi kusukela ekuthuthweni kukawoyela negesi kuya ezinhlelweni zamanzi.

    4. Izinkampani ezikhiqiza la mapayipi zibeka phambili ukwaneliseka kwamakhasimende futhi zinikeza izinsizakalo eziphelele zangaphambi kokuthengisa, ngesikhathi sokuthengisa, kanye nangemva kokuthengisa. Lokhu kuzibophezela kuqinisekisa ukuthi amakhasimende athola imikhiqizo ehambisana nezidingo zawo ezithile, okuthuthukisa ulwazi oluphelele.

    Ukushoda komkhiqizo

    1. Inqubo yokushisela nge-spiral ingaba yinkimbinkimbi kakhulu kunezindlela zokushisela zendabuko, okungabangela izindleko zokukhiqiza eziphakeme.

    2. Nakuba amapayipi omthungo ajikelezayo eqinile, angase angamelani nezinhlobo ezithile zokugqwala kunezinye izinto zamapayipi futhi adinga ukumbozwa noma ukwelashwa okuvikelayo.

     

    ipayipi lensimbi elijikelezayo

     

     

    Imibuzo Evame Ukubuzwa

    Q1: Iyini ipayipi lomthungo elijikelezayo?

    Ipayipi lomthungo elijikelezayo lakhiwa kusetshenziswa indlela ekhethekile ebizwa ngokuthi inqubo yokushisela ejikelezayo. Lobu buchwepheshe obusha buhilela ama-coil ensimbi ashisiwe akhiwa abe yisimo esiyindilinga futhi ahlanganiswe nomthungo ojikelezayo. Ipayipi eliphumayo aligcini nje ngokuba namandla aphezulu kodwa futhi lihlala isikhathi eside kakhulu, okwenza lifaneleke kakhulu ezinhlotsheni ezahlukene zokusebenza, okuhlanganisa ukuthuthwa kukawoyela negesi, ukuhlinzekwa kwamanzi kanye nokusekelwa kwesakhiwo.

    Q2: Kungani ukhethe ipayipi lomthungo eliyindilinga elisezingeni eliphezulu?

    Inzuzo eyinhloko yamapayipi omthungo ojikelezayo asezingeni eliphezulu ukwakhiwa kwawo okuqinile. Inqubo yokushisela okujikelezayo ivumela ukushisela okuqhubekayo, okuthuthukisa ubuqotho kanye nokumelana nengcindezi yepayipi. Ngaphezu kwalokho, la mapayipi angakhiqizwa ngobukhulu obuhlukahlukene kanye nobukhulu ukuze kuhlangatshezwane nezidingo ezithile zamaphrojekthi ahlukene.

    Q3: Yini okufanele ngiyibheke kumhlinzeki?

    Uma ukhetha umhlinzeki wepayipi lokuthunga elijikelezayo, kubalulekile ukukhetha inkampani ebeka ukwaneliseka kwamakhasimende kuqala. Funa umhlinzeki ohlinzeka ngezinsizakalo eziphelele zangaphambi kokuthengisa, ukuthengisa, kanye nezinsizakalo zangemuva kokuthengisa. Inkampani ehloniphekile izoqinisekisa ukuthi imikhiqizo yayo ihlangabezana nemigomo ebekiwe futhi ingahlangabezana nezidingo zakho ezihlukile, iqinisekise ukuthi uthola imikhiqizo nezinsizakalo ezisezingeni eliphezulu amakhasimende akho azozazisa.

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