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    Ukuqonda Ukubaluleka Kwezinqubo Ezifanele Zokushisela Amapayipi Epayipi Lensimbi Ejikelezayo Esetshenziswa Emigqeni Yamanzi Angaphansi Komhlaba

    Ukuqonda Ukubaluleka Kwezinqubo Ezifanele Zokushisela Amapayipi Epayipi Lensimbi Ejikelezayo Esetshenziswa Emigqeni Yamanzi Angaphansi Komhlaba Isithombe Esifakiwe
    • Ukuqonda Ukubaluleka Kwezinqubo Ezifanele Zokushisela Amapayipi Epayipi Lensimbi Ejikelezayo Esetshenziswa Emigqeni Yamanzi Angaphansi Komhlaba

    Incazelo emfushane:

    Uma ufaka imigqa yamanzi engaphansi komhlaba, ukusebenzisa ipayipi elisezingeni eliphezulu kubalulekile ekuqinisekiseni ukuqina kwesikhathi eside kanye nokumelana nezici zemvelo. Uhlobo olulodwa lwepayipi oluvame ukusetshenziswa emigqeni yamanzi engaphansi komhlaba yipayipi lensimbi elijikelezayo. Kodwa-ke, ukusebenzisa nje amapayipi asezingeni eliphezulu akwanele ukuqinisekisa ukuthi amapayipi akho amanzi ahlala isikhathi eside. Izinqubo ezifanele zokushisela amapayipi zibalulekile ekuqinisekiseni ukuthi amapayipi ensimbi ajikelezayo angamelana nezimo ezinzima ezingaphansi komhlaba futhi ahlinzeke ngokulethwa kwamanzi okuthembekile.


    Imininingwane Yomkhiqizo

    Amathegi Omkhiqizo

     Amapayipi ensimbi ajikelezayoasetshenziswa kakhulu emapayipini angaphansi komhlaba ngenxa yamandla awo aphezulu kanye nekhono lokumelana nengcindezi yangaphandle. Amapayipi akhiqizwa ngama-hot-rolled steel coil strips akha isimo se-spiral. Inqubo yokushisela e-spiral esetshenziswa ukukhiqiza la mapayipi inikeza ubuqotho obuhle kakhulu besakhiwo, okwenza afaneleke kakhulu ekusetshenzisweni komhlaba.

    Ububanzi obujwayelekile bangaphandle Ubukhulu Bodonga Olujwayelekile (mm)
    mm In 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 15.0 16.0 18.0 20.0 22.0
    Isisindo Ngeyunithi Ubude （kg/m）
    219.1 8-5/8 31.53 36.61 41.65                      
    273.1 10-3/4 39.52 45.94 52.30                      
    323.9 12-3/4 47.04 54.71 62.32 69.89 77.41                  
    (325)   47.20 54.90 62.54 70.14 77.68                  
    355.6 14 51.73 60.18 68.58 76.93 85.23                  
    （377.0）   54.89 63.87 72.80 81.67 90.50                  
    406.4 16 59.25 68.95 78.60 88.20 97.76 107.26 116.72              
    (426.0)   62.14 72.33 82.46 92.55 102.59 112.58 122.51              
    457 18 66.73 77.68 88.58 99.44 110.24 120.99 131.69              
    (478.0)   69.84 81.30 92.72 104.09 115.41 126.69 137.90              
    508.0 20 74.28 86.49 98.65 110.75 122.81 134.82 146.79 158.69 170.56          
    (529.0)   77.38 90.11 102.78 115.40 127.99 140.52 152.99 165.43 177.80          
    559.0 22 81.82 95.29 108.70 122.07 135.38 148.65 161.88 175.04 188.17          
    610.0 24 89.37 104.10 118.77 133.39 147.97 162.48 176.97 191.40 205.78          
    (630.0)   92.33 107.54 122.71 137.83 152.90 167.92 182.89 197.81 212.68          
    660.0 26 96.77 112.73 128.63 144.48 160.30 176.05 191.77 207.43 223.04          
    711.0 28 104.32 121.53 138.70 155.81 172.88 189.89 206.86 223.78 240.65 257.47 274.24      
    (720.0)   105.65 123.09 140.47 157.81 175.10 192.34 209.52 226.66 243.75 260.80 277.79      
    762.0 30 111.86 130.34 148.76 167.13 185.45 203.73 211.95 240.13 258.26 276.33 294.36      
    813.0 32 119.41 139.14 158.82 178.45 198.03 217.56 237.05 256.48 275.86 295.20 314.48      
    (820.0)   120.45 140.35 160.20 180.00 199.76 219.46 239.12 258.72 278.28 297.79 317.25      
    864.0 34   147.94 168.88 189.77 210.61 231.40 252.14 272.83 293.47 314.06 334.61      
    914.0 36     178.75 200.87 222.94 244.96 266.94 288.86 310.73 332.56 354.34      
    (920.0)       179.93 202.20 224.42 246.59 286.70 290.78 312.79 334.78 356.68      
    965.0 38     188.81 212.19 235.52 258.80 282.03 305.21 328.34 351.43 374.46      
    1016.0 40     198.87 223.51 248.09 272.63 297.12 321.56 345.95 370.29 394.58 443.02    
    (1020.0)       199.66 224.39 249.08 273.72 298.31 322.84 347.33 371.77 396.16 444.77    
    1067.0 42     208.93 234.83 260.67 286.47 312.21 337.91 363.56 389.16 414.71 465.66    
    118.0 44     218.99 246.15 273.25 300.30 327.31 354.26 381.17 408.02 343.83 488.30    
    1168.0 46     228.86 257.24 285.58 313.87 342.10 370.29 398.43 426.52 454.56 510.49    
    1219.0 48     238.92 268.56 298.16 327.70 357.20 386.64 416.04 445.39 474.68 553.13    
    (1220.0)       239.12 268.78 198.40 327.97 357.49 386.96 146.38 445.76 475.08 533.58    
    1321.0 52       291.20 323.31 327.97 387.38 449.34 451.26 483.12 514.93 578.41    
    (1420.0)           347.72 355.37 416.66 451.08 485.41 519.74 553.96 622.32 690.52  
    1422.0 56         348.22 382.23 417.27 451.72 486.13 520.48 554.97 623.25 691.51 759.58
    1524.0 60         373.38 410.44 447.46 484.43 521.34 558.21 595.03 688.52 741.82 814.91
    (1620.0)           397.03 436.48 457.84 515.20 554.46 593.73 623.87 711.11 789.12 867.00
    1626.0 64         398.53 438.11 477.64 517.13 556.56 595.95 635.28 713.80 792.13 870.26
    1727.0 68         423.44 465.51 507.53 549.51 591.43 633.31 675.13 758.64 841.94 925.05
    (1820.0)           446.37 492.74 535.06 579.32 623.50 667.71 711.79 799.92 887.81 975.51
    1829.0 72           493.18     626.65 671.04 714.20 803.92 890.77 980.39
    1930.0 76                 661.52 708.40 755.23 848.75 942.07 1035.19
    (2020.0)                   692.60 741.69 790.75 888.70 986.41 1084.02
    2032.0 80                 696.74 746.13 795.48 894.03 992.38 1090.53
    (2220.0)                   761.65 815.68 869.66 977.50 1085.80 1192.53
    (2420.0)                       948.58 1066.26 1183.75 1301.04
    (2540.0) 100                     995.93 1119.53 1242.94 1366.15
    (2845.0) 112                     1116.28 1254.93 1393.37 1531.63

    Qaphela:

    1. Kukhona namapayipi ensimbi anobubanzi obujwayelekile bangaphandle kanye nobukhulu bodonga obujwayelekile phakathi kobukhulu bawo obuseduze obubhalwe etafuleni, kodwa kufanele kusayinwe inkontileka.

    2. Ububanzi obujwayelekile bangaphandle kubakaki etafuleni bububanzi obugciniwe.

    Esinye sezici ezibaluleke kakhulu zokusebenzisa insimbi ejikelezayoipayipi lemigqa yamanzi engaphansi komhlabakuyinqubo efanele yokushisela. Ukushisela inqubo yokuhlanganisa izingxenye ezimbili zensimbi ngokusebenzisa ukushisa nokucindezela. Kumapayipi amanzi angaphansi komhlaba, ikhwalithi yokushisela ithinta ngqo ubuqotho kanye nokuthembeka kwepayipi.

    Okufaneleizinqubo zokushisela amapayipiIpayipi lensimbi elijikelezayo lihilela izinyathelo eziningana ezibalulekile. Okokuqala, ubuso bepayipi elizoshintshwa kumele buhlanzeke futhi bungabi nalutho olungcolile njengokungcola, uwoyela, noma upende. Lokhu kuqinisekisa ukuthi i-weld iqinile futhi ayinazo izinto ezingcolile ezingalimaza amandla ayo.

    Ipayipi le-SSAW

    Okulandelayo, amapharamitha okushisela njengokufakwa kokushisa, isivinini sokushisela, kanye nobuchwepheshe kumele kulawulwe ngokucophelela ukuze kufezwe ukushisela kwekhwalithi ephezulu. Ukusebenzisa izinto zokushisela ezifanele kanye namasu kubalulekile ekuvimbeleni amaphutha afana nokubhoboka, imifantu, noma ukuntuleka kokuhlangana, okungalimaza ubuqotho bokushisela.

    Ngaphezu kwalokho, izinqubo ezifanele zokushisa ngaphambi kwesikhathi kanye nokwelashwa kokushisa ngemva kokushiswa zibalulekile kumapayipi ensimbi ajikelezayo asetshenziswa emigqeni yamanzi angaphansi komhlaba. Ukushisa kusiza ukunciphisa ingozi yokuqhekeka futhi kuthuthukise ikhwalithi yokushiswa iyonke, kuyilapho ukwelashwa kokushisa ngemva kokushiswa kunciphisa ukucindezeleka okusele futhi kuqinisekisa isakhiwo esincane esifanayo kuyo yonke indawo yokushiswa.

    Ngaphezu kwalokho, ukusetshenziswa kobuchwepheshe bokushisela obuthuthukisiwe njengezinqubo zokushisela ezenzakalelayo kanye nokuhlolwa okungonakalisi kungathuthukisa kakhulu ikhwalithi nokuthembeka kokushisela. Lobu buchwepheshe buyasiza ekuqinisekiseni ukuthi amajoyinti ashiselwe ahlangabezana namandla adingekayo kanye namazinga ekhwalithi ukuze kunikezwe ukuthula kwengqondo mayelana nokusebenza kwesikhathi eside kwemigqa yamanzi angaphansi komhlaba.

    Ngamafuphi, izinqubo ezifanele zokushisela amapayipi zibalulekile ekuqinisekiseni ubuqotho kanye nobude besikhathi sepayipi lensimbi elijikelezayo elisetshenziswa emigqeni yamanzi angaphansi komhlaba. Ngokulandela imingcele yokushisela edingekayo, amasu kanye nezinyathelo zokulawula ikhwalithi, ingozi yokukhubazeka kokushisela kanye nokwehluleka ingancishiswa kakhulu. Umphumela uba umugqa wamanzi angaphansi komhlaba onokwethenjelwa nohlala isikhathi eside ongamelana novivinyo lwesikhathi futhi unikeze izinsizakalo zokulethwa kwamanzi eziphephile nezisebenzayo. Emigqeni yamanzi angaphansi komhlaba, ukutshala imali ohlelweni lokushisela olufanele kuyisinyathelo esibalulekile ekuqinisekiseni ukuthembeka kanye nobude besikhathi sepayipi.

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