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    Ipayipi Lensimbi Ehlanganisiwe Ehlanganisiwe Yepayipi Lamafutha Negesi

    Ipayipi Lensimbi Ehlanganisiwe Ejikelezayo Yamapayipi Kawoyela Negesi Isithombe Esifakiwe
    • Ipayipi Lensimbi Ehlanganisiwe Ehlanganisiwe Yepayipi Lamafutha Negesi

    Incazelo emfushane:

    Emikhakheni ehlala ishintsha yezakhiwo nobunjiniyela, intuthuko yezobuchwepheshe iyaqhubeka nokuchaza kabusha indlela amaphrojekthi aqaliswa ngayo. Enye yezinto ezintsha eziphawulekayo ipayipi lensimbi elihlanganisiwe eliyindilinga. Ipayipi linemithungo ebusweni balo futhi lakhiwa ngokugoba imicu yensimbi ibe yizindilinga bese liyihlanganisa, okuletha amandla angavamile, ukuqina kanye nokuguquguquka enkambisweni yokuhlanganisa amapayipi. Lesi singeniso somkhiqizo sihlose ukubonisa izici ezibalulekile zepayipi elihlanganisiwe elihlanganisiwe eliyindilinga futhi sigqamise indima yalo yokuguqula embonini kawoyela negesi.


    Imininingwane Yomkhiqizo

    Amathegi Omkhiqizo

    Yethula:

    Emikhakheni ehlala ishintsha yezakhiwo nobunjiniyela, intuthuko yezobuchwepheshe iyaqhubeka nokuchaza kabusha indlela amaphrojekthi aqaliswa ngayo. Enye yezinto ezintsha eziphawulekayo ipayipi lensimbi elihlanganisiwe eliyindilinga. Ipayipi linemithungo ebusweni balo futhi lakhiwa ngokugoba imicu yensimbi ibe yizindilinga bese liyihlanganisa, okuletha amandla angavamile, ukuqina kanye nokuguquguquka enkambisweni yokuhlanganisa amapayipi. Lesi singeniso somkhiqizo sihlose ukubonisa izici ezibalulekile zepayipi elihlanganisiwe elihlanganisiwe eliyindilinga futhi sigqamise indima yalo yokuguqula embonini kawoyela negesi.

    Incazelo Yomkhiqizo:

    Amapayipi ensimbi ahlanganisiwe ajikelezayo, ngomklamo wazo, zinikeza izinzuzo eziningana ezihlukile kunezinhlelo zamapayipi ezivamile. Inqubo yazo yokukhiqiza ehlukile iqinisekisa ukujiya okulinganayo kulo lonke ubude bayo, okwenza imelane kakhulu nezingcindezi zangaphakathi nezangaphandle. Lokhu kuqina kwenza ipayipi elihlanganisiwe eliyindilinga lifanele ukusetshenziswa kokudlulisa uwoyela negesi lapho ukuphepha nokuthembeka kubaluleke kakhulu.

    Ubuchwepheshe bokushisela obujikelezayo obusetshenziswa ekukhiqizweni kwabo bunikeza ukuguquguquka okukhulu kanye nokuzivumelanisa nezimo, okuvumela ipayipi ukuthi likwazi ukumelana nezimo ezimbi kakhulu njengokushisa okuphezulu, umehluko wokucindezela kanye nezinhlekelele zemvelo. Ngaphezu kwalokho, lo mklamo omusha uthuthukisa ukugqwala kanye nokumelana nokuguguleka, okusiza ukwandisa isikhathi senkonzo kanye nokunciphisa izindleko zokulungisa.

    Ithebula 2 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-Nb\V\Ti 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-Nb\V\Ti 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

    Ngaphezu kwalokho, ukuxhumeka kwe-spiral weld kuqinisekisa ukusebenza okuhle kakhulu okuvikela ukuvuza. Ngakho-ke, amapayipi e-spiral weld ahlinzeka ngamapayipi aphephile okuthuthwa kukawoyela negesi, okunciphisa ingozi yokuvuza kanye nezingozi zemvelo. Lokhu, kanye nokusebenza kahle kokugeleza kwayo okuphezulu kanye nokusebenza kahle kwe-hydraulic, kwenza kube kuhle kakhulu ezinkampanini zamandla ezifuna izixazululo ezithembekile nezisimeme.

    Ipayipi Legesi Elingaphansi Komhlaba

    Ukuguquguquka kwepayipi elihlanganisiwe elijikelezayo akugcini nje ekuthuthweni kukawoyela negesi. Ukwakhiwa kwalo okuqinile kanye nokuqina kwesakhiwo esihle kakhulu kuvumela ukuthi lisetshenziswe ezinhlotsheni ezahlukahlukene zezicelo, okuhlanganisa ukuhlinzekwa kwamanzi, izinhlelo zokudonsa amanzi, ngisho namaphrojekthi obunjiniyela bezokwakha. Kungakhathaliseki ukuthi lisetshenziselwa ukuthutha uketshezi noma lisetshenziswa njengezakhiwo zokusekela, amapayipi ensimbi ahlanganisiwe ajikelezayo avelele ekuhlinzekeni ngezixazululo ezinokwethenjelwa nezingabizi kakhulu.

    Ukwethulwa kwamapayipi ensimbi ahlanganisiwe ajikelezayo kuthuthukise kakhulu izinqubo zokushisela amapayipi, kwenza inqubo ibe lula futhi kunciphisa isikhathi sephrojekthi iyonke. Ukufakwa okulula, kuhlanganiswe nesilinganiso esiphakeme samandla nesisindo, kuvumela inqubo yokwakha elula futhi ephumelelayo. Lokhu kusho ukonga okukhulu ezindlekweni zabasebenzi, izidingo zemishini kanye nezindleko zokuphathwa kwephrojekthi, ngenkathi kuqinisekiswa ikhwalithi ephezulu kanye nokuphila isikhathi eside.

    Ekuphetheni:

    Ngamafuphi, ipayipi elihlanganisiwe elijikelezayo lishintshe kakhulu insimu yezinqubo zokushisela amapayipi, ikakhulukazi embonini kawoyela negesi. Ukuhlanganiswa kwalo okungenamthungo kwamandla, ukuqina, ukuguquguquka kanye nokusebenza kahle kwezindleko kwenza kube kuhle kakhulu ezinkampanini zamandla ezifuna izixazululo ezinokwethenjelwa. Ngokucindezela okuphezulu, ukugqwala kanye nokumelana nokuvuza, amapayipi ensimbi ahlanganisiwe adlula izinhlelo zendabuko zamapayipi ukuze anikeze inethiwekhi eqhubekayo nephephile yokuthutha izinsiza ezibalulekile. Njengoba imboni yokwakha iqhubeka nokwamukela intuthuko yezobuchwepheshe, ipayipi elihlanganisiwe elijikelezayo liba ubufakazi bobuhlakani bomuntu kanye nokusungula izinto ezintsha, okubonisa ikusasa lokusebenza kahle, ukuphepha kanye nokuthembeka.

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