Mapaipi Ozungulira Ozungulira Kwa Mipope Yaikulu Yamadzi

Kufotokozera Kwachidule:

Pomanga zomangamanga, zipangizo zomwe zimagwiritsidwa ntchito zimagwira ntchito yofunika kwambiri pa moyo wautali komanso kugwira ntchito kwa polojekitiyi.Chinthu chimodzi chomwe chili chofunikira kwambiri pamakampani opanga zomangamanga ndi chitoliro chozungulira chozungulira.Mapaipiwa amagwiritsidwa ntchito mosiyanasiyana m'njira zosiyanasiyana monga mapaipi amadzi ndi mapaipi a gasi, ndipo mafotokozedwe ake, kuphatikiza mapaipi otchingidwa ndi ma spiral seam, ndi ofunikira kuti awonetsetse kuti akugwira ntchito.Mu blog iyi, tiwona mozama zaspiral welded pipe specification ndi kufunika kwawo pantchito yomanga.


Tsatanetsatane wa Zamalonda

Zolemba Zamalonda

Pomanga zomangamanga, zipangizo zomwe zimagwiritsidwa ntchito zimagwira ntchito yofunika kwambiri pa moyo wautali komanso kugwira ntchito kwa polojekitiyi.Chinthu chimodzi chomwe chili chofunikira kwambiri pamakampani opanga zomangamanga ndi chitoliro chozungulira chozungulira.Mapaipiwa amagwiritsidwa ntchito mosiyanasiyana m'njira zosiyanasiyana monga mapaipi amadzi ndi mapaipi a gasi, ndipo mafotokozedwe ake, kuphatikiza mapaipi otchingidwa ndi ma spiral seam, ndi ofunikira kuti awonetsetse kuti akugwira ntchito.Mu blog iyi, tiwona mozama zaspiral welded pipe specificationndi kufunika kwawo pantchito yomanga.

Schitoliro cha piralsamamangidwa pogwiritsa ntchito njira yotchedwa spiral welding process.Njirayi imaphatikizapo kugwiritsa ntchito zitsulo zopindika zotentha kuti zipangidwe kukhala cylindrical, kenako kumangiriza mozungulira msoko.Chotsatira chake ndi chitoliro chokhala ndi mphamvu zambiri komanso kukhazikika, zomwe zimapangitsa kuti zikhale zoyenera pa ntchito zosiyanasiyana.Mapaipi awa amagwiritsa ntchitowelded chubuteknoloji panthawi yomanga, kuonetsetsa kuti ikugonjetsedwa ndi zinthu zosiyanasiyana zachilengedwe ndi zovuta, zomwe zimapangitsa kuti zikhale zoyenera kuti zigwiritsidwe ntchito pansi pa nthaka ndi pansi pa madzi.

Katundu Wakuthupi ndi Wamankhwala Wamapaipi Achitsulo (GB/T3091-2008, GB/T9711-2011 ndi API Spec 5L)

       

Standard

Kalasi yachitsulo

Zamankhwala (%)

Tensile Property

Charpy (V notch) Impact Test

c Mn p s Si

Zina

Yield Strength (Mpa)

Mphamvu Yamphamvu (Mpa)

(L0 = 5.65 √ S0 (mphindi Wotambasula) (%)

max max max max max min max min max D ≤ 168.33mm D > 168.3mm

GB/T3091 -2008

Q215A ≤ 0.15 0.25 < 1.20 0.045 0.050 0.35

Kuwonjezera Nb\V\Ti molingana ndi 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  

Posankha kuwonjezera chimodzi mwazinthu za Nb\V\Ti kapena kuphatikiza kulikonse

175   310  

27

Chimodzi kapena ziwiri mwazowonetsa mphamvu zamphamvu ndi malo ometa zitha kusankhidwa.Kwa L555, onani muyezo.

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  

Kwa kalasi B chitsulo, Nb+V ≤ 0.03%; zitsulo ≥ kalasi B, kusankha kuwonjezera Nb kapena V kapena kuphatikiza kwawo, ndi Nb+V+Ti ≤ 0.15%

172   310  

(L0 = 50.8mm) kuti iwerengedwe motsatira ndondomeko iyi: e=1944·A0 .2/U0 .0 A: Dera lachitsanzo mu mm2 U: Mphamvu zochepa zotchulidwa mu Mpa

Palibe kapena chilichonse kapena zonse ziwiri zomwe zimakhudzidwa ndi gawo lometa zomwe zimafunikira ngati muyeso wolimba.

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

Poganizira zofunikira za chitoliro cha spiral seam, ndikofunikira kuyang'ana pazinthu zazikulu monga mainchesi, makulidwe a khoma ndi kalasi yazinthu.Kutalika kwa chitoliro kumatsimikizira kuthekera kwake kunyamula madzi kapena gasi, pomwe makulidwe a khoma amatenga gawo lofunikira pakukhazikika kwake komanso kukana kupanikizika.Kuonjezera apo, kalasi yazinthu imayimira ubwino ndi mawonekedwe a zitsulo zomwe zimagwiritsidwa ntchito ndipo ndizofunikira kwambiri poonetsetsa kuti moyo wautali ndi ntchito ya chitoliro mu ntchito yoperekedwa.

Pakumanga kwamapaipi akuluakulu amadzi, mapaipi ozungulira ozungulira ali ndi maubwino ambiri.Mphamvu zawo zolimba kwambiri komanso kukana kwa dzimbiri zimawapangitsa kukhala abwino kunyamula madzi mtunda wautali, pomwe kusinthasintha kwawo kumalola kukhazikitsa kosavuta kuzungulira zopinga komanso malo ovuta.Kuphatikiza apo, kugwiritsa ntchito mapaipi ozungulira ozungulira m'mapaipi a gasi achilengedwe kumapangitsa kuti gasi aziyenda bwino komanso motetezeka, ndikupereka chithandizo chofunikira kwa magawo okhala, malonda ndi mafakitale.

chitoliro chachitsulo chozungulira

Kumbali ya zomangamanga, mawonekedwe a chitoliro cha spiral seam amayendetsedwa ndi miyezo ndi malamulo amakampani kuti awonetsetse kuti ntchito yawo ndi yabwino.Mwachitsanzo, American Petroleum Institute (API) yakhazikitsa miyezo yopangira ndi kugwiritsa ntchito chitoliro cha spiral-seam chomwe chimafotokoza zofunikira pakukula, mphamvu, ndi njira zoyesera.Kuphatikiza apo, American Society for Testing and Equipment (ASTM) imapereka mawonekedwe azinthu komanso mawonekedwe amtundu wamakina a mapaipi ozungulira kuti awonetsetse kudalirika kwawo komanso kutsatira miyezo yamakampani.

Mwachidule, mawonekedwe a spiral welded pipe ndi ofunika kwambiri pa ntchito yawo yomanga zomangamanga.Kaya amagwiritsidwa ntchito popangira madzi kapenamizere ya gasi, mapaipiwa amapereka mphamvu zosayerekezeka, kulimba komanso kusinthasintha, zomwe zimapangitsa kuti zikhale zofunikira kwambiri masiku ano.Potsatira miyezo ndi malamulo amakampani, kugwiritsa ntchito mapaipi ozungulira ozungulira kumatsimikizira chitetezo ndi mphamvu zamakina ofunikira, ndikutsegulira njira yachitukuko chokhazikika komanso kupita patsogolo kwa anthu.

 


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