Ipayipi Lensimbi Elishiselwe Okuvunguza Ngamafutha Negesi

Incazelo emfushane:

Emkhakheni ohlale uvela wezokwakha nobunjiniyela, intuthuko yezobuchwepheshe iyaqhubeka nokuchaza kabusha indlela amaphrojekthi aqaliswa ngayo.Enye yezinto ezintsha eziphawulekayo ipayipi lensimbi elivunguzayo.Ipayipi linemithungo ebusweni balo futhi lenziwa ngokugoba amapheshana ensimbi abe yindilinga bese eyishisela, okuletha amandla akhethekile, ukuqina kanye nokuguquguquka kwenqubo yokushisela ipayipi.Lesi singeniso somkhiqizo sihlose ukukhombisa izici eziphawulekayo zepayipi elishiselwe elivunguzayo futhi sigqamise indima yalo yokuguqula embonini kawoyela negesi.


Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Yethula:

Emkhakheni ohlale uvela wezokwakha nobunjiniyela, intuthuko yezobuchwepheshe iyaqhubeka nokuchaza kabusha indlela amaphrojekthi aqaliswa ngayo.Enye yezinto ezintsha eziphawulekayo ipayipi lensimbi elivunguzayo.Ipayipi linemithungo ebusweni balo futhi lenziwa ngokugoba amapheshana ensimbi abe yindilinga bese eyishisela, okuletha amandla akhethekile, ukuqina kanye nokuguquguquka kwenqubo yokushisela ipayipi.Lesi singeniso somkhiqizo sihlose ukukhombisa izici eziphawulekayo zepayipi elishiselwe elivunguzayo futhi sigqamise indima yalo yokuguqula embonini kawoyela negesi.

Incazelo Yomkhiqizo:

Amapayipi ensimbi ashiselwe okuvunguza, ngokuklama kwazo, zinikeza izinzuzo eziningana ezihlukile kumasistimu amapayipi avamile.Inqubo yayo yokukhiqiza eyingqayizivele iqinisekisa ukushuba okungaguquki kubo bonke ubude bayo, okwenza imelane kakhulu nezingcindezi zangaphakathi nezangaphandle.Lokhu kuqina kwenza ipayipi elishiselwe elivunguzayo lilungele ukusetshenziswa kokuhambisa uwoyela negesi lapho ukuphepha nokuthembeka kubaluleke kakhulu.

Ubuchwepheshe be-spiral welding obusetshenziswa ekukhiqizeni kwabo buhlinzeka ngokuguquguquka okukhulu nokuzivumelanisa nezimo, okuvumela ipayipi ukuthi imelane nezimo ezimbi kakhulu ezifana namazinga okushisa aphezulu, umehluko wengcindezi kanye nezinhlekelele zemvelo.Ngaphezu kwalokho, lo mklamo omusha uthuthukisa ukugqwala nokumelana nokuguga, usize ekwandiseni impilo yesevisi nokunciphisa izindleko zokuyilungisa.

Ithebula 2 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 Yengeza 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 yebanga 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

Ngaphezu kwalokho, ukuxhunywa kwe-spiral weld kuqinisekisa ukusebenza okuhle kakhulu kobufakazi bokuvuza.Ngakho-ke, amapayipi ashiselwe ku-spiral ahlinzeka ngamapayipi aphephile okuthutha uwoyela negesi, anciphisa ubungozi bokuvuza kanye nobungozi bemvelo.Lokhu, kuhambisana nokusebenza kahle kokugeleza kwayo okuphezulu nokusebenza kahle kwe-hydraulic, kuyenza ilungele izinkampani zamandla ezifuna izixazululo ezinokwethenjelwa nezisimeme.

Ipayipi Legesi Elingaphansi

Ukuguquguquka kwepayipi elishiselwe okuvunguza akugcini ekuthuthweni kukawoyela negesi.Ukwakhiwa kwayo okuqinile kanye nobuqotho besakhiwo esihle kakhulu kuyivumela ukuthi isetshenziswe ezinhlelweni ezihlukahlukene, okuhlanganisa ukuhlinzekwa kwamanzi, izinhlelo zokudonsa amanzi, kanye namaphrojekthi wobunjiniyela bomphakathi.Kungakhathaliseki ukuthi asetshenziselwa ukuthutha uketshezi noma asetshenziswa njengezakhiwo ezisekelayo, amapayipi ensimbi ashiselwe ayi-spiral ahamba phambili ekunikezeni izisombululo ezinokwethenjelwa nezingabizi kakhulu.

Ukwethulwa kwamapayipi ensimbi ayi-spiral welded kuye kwathuthukisa kakhulu izinqubo zokushisela amapayipi, kwenza inqubo ibe lula futhi kunciphisa isikhathi sonke sephrojekthi.Ukufakwa kalula, kuhlanganiswe nesilinganiso esiphakeme samandla kuya kwesisindo, kuvumela inqubo yokwakha ehlelekile futhi ephumelelayo.Lokhu kusho ukonga okubalulekile ezindlekweni zomsebenzi, izidingo zemishini kanye nezindleko zokuphathwa kwephrojekthi, kuyilapho kuqinisekisa ikhwalithi ephezulu nokuphila isikhathi eside.

Ekuphetheni:

Kafushane, i-spiral welded pipe isiguqule insimu yezinqubo zokushisela amapayipi, ikakhulukazi embonini kawoyela negesi.Ukuhlanganiswa kwayo okungenamthungo kwamandla, ukuqina, ukuguquguquka kanye nokusebenza kahle kwezindleko kuyenza ibe ilungele izinkampani zamandla ezifuna izixazululo ezinokwethenjelwa.Ngomfutho ophakeme, ukugqwala nokumelana nokuvuza, amapayipi ensimbi ashiselwe okuvunguza adlula amapayipi endabuko ukuze anikeze inethiwekhi esimeme nephephile yokuthuthwa kwezinsiza ezibalulekile.Njengoba imboni yezokwakha iqhubeka nokwamukela intuthuko yezobuchwepheshe, ipayipi elishiselwe elivunguzayo liba ubufakazi bobuhlakani bomuntu kanye nokuqamba okusha, okumemezela ikusasa lokusebenza kahle, ukuphepha nokwethembeka.


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