Ukhetho oluchanekileyo lwemibhobho yentsimbi engenamthungo eneneni inolwazi kakhulu!

Ziziphi iimfuno zokukhetha imibhobho yentsimbi engenamthungo yokuthutha ulwelo oluqhele ukusetyenziswa kwishishini lethu lenkqubo? Jonga isishwankathelo sabasebenzi bethu bombhobho woxinzelelo:

Imibhobho yentsimbi engenamthungo yimibhobho yentsimbi ngaphandle kweewelds ezenziwe ngeendlela zonyango ezishushu ezifana nokugqobhoza kunye nokuqengqeleka okushushu.

Ukuba kuyimfuneko, umbhobho wonyango oshushu unokuqhubeka nokubanda-ukutsalwa kwimo efunekayo, ubungakanani kunye nokusebenza. Okwangoku, iipayipi zensimbi ezingenasiphelo (i-DN15-600) ziyimibhobho esetyenziswa kakhulu kwizixhobo zokuvelisa i-petrochemical.

(一) Umthungo wentsimbi yeCarbon Umbhobho

Material Steel Grade :10#,20#,09MnV,16Mnkwiindidi ezi-4

Umgangatho:

I-GB8163 iSeamless Steel Pipe yeNkonzo yeFluid

I-GB/T9711 Amashishini ePetroleum kunye negesi yendalo-Imibhobho yentsimbi kwiinkqubo zothutho lwemibhobho

I-GB6479 umbhobho wentsimbi ongenamthungo ophakamileyo wezixhobo zesichumiso”

I-GB9948 iityhubhu zentsimbi ezingenamthungo zokuqhekeka kwepetroleum

GB3087 Umbhobho wentsimbi engenamthungo kwibhoyila yoxinzelelo oluphantsi noluphakathi

I-GB/T5310 Iityhubhu zentsimbi ezingenamthungo kunye nemibhobho yebhoyila yoxinzelelo oluphezulu

I-GB/T8163: IBanga leNsimbi leMathiriyeli: 10#, 20#, Q345, njl.

Ububanzi besicelo: i-oyile, i-oyile kunye negesi kunye neendaba zoluntu ezinobushushu bokuyila obungaphantsi kwe-350 ℃ kwaye uxinzelelo lungaphantsi kwe-10MPa.

I-GB6479: IBanga lentsimbi yezinto eziphathekayo: 10 #, 20G, 16Mn, njl.

Ububanzi besicelo: ioli kunye negesi kunye nobushushu boyilo -40～400℃ kunye noxinzelelo loyilo 10.0～32.0MPa.

GB9948:

Izinto zentsimbi yeBanga: 10 #, 20 #, njl.

Ububanzi besicelo: amaxesha apho i-GB / T8163 ipayipi yensimbi ayifanelekanga.

GB3087:

Izinto zentsimbi yeBanga: 10 #, 20 #, njl.

Ubungakanani besicelo: umphunga oshushu kakhulu kunye namanzi abilayo kwiibhoyila zoxinzelelo oluphantsi kunye oluphakathi.

GB5310:

Izinto zentsimbi yeBanga: 20G njl.

Ubungakanani besicelo: i-superheated steam medium kwibhoyila yoxinzelelo oluphezulu

Ukuhlolwa: Ngokubanzi imibhobho yentsimbi yokuthutha ulwelo kufuneka ihlalutywe ukwakheka kweekhemikhali, uvavanyo lwe-tensile, uvavanyo lokucaba kunye novavanyo lwe-hydraulic. I-GB5310, i-GB6479, kunye ne-GB9948 yemibhobho yentsimbi eqhelekileyo, ngaphezu kweemvavanyo ekufuneka zenziwe kwimibhobho yentsimbi yokuthutha ulwelo, iimvavanyo zokuvutha kunye neemvavanyo zempembelelo nazo ziyafuneka; iimfuno zokuhlolwa kwemveliso kule mibhobho emithathu yentsimbi ingqongqo. Umgangatho we-GB6479 wenza iimfuno ezikhethekileyo zokuqina kwefuthe eliphantsi lobushushu bezinto eziphathekayo. Ukongeza kwiimfuno zovavanyo ngokubanzi lwemibhobho yentsimbi yokuthutha ulwelo, imibhobho yentsimbi yomgangatho we-GB3087 nayo ifuna iimvavanyo zokugoba ezibandayo. I-GB/T8163 imibhobho yentsimbi eqhelekileyo, ukongeza kwiimfuno zovavanyo ngokubanzi kwimibhobho yentsimbi yokuthutha ulwelo, ngokwesivumelwano ifuna uvavanyo lokwandiswa kunye novavanyo lokugoba olubandayo. Iimfuno zokwenziwa kwezi ntlobo zimbini zeebhubhu azikho ngqongqo njengeentlobo ezintathu zokuqala.

Ukuvelisa: I-GB/T8163 kunye ne-GB3087 imibhobho yentsimbi esemgangathweni idla ngokunyibilikiswa kwiziko elivulekileyo okanye isiguquli, kwaye ukungcola kwayo kunye neziphene zangaphakathi zinkulu. I-GB9948 ikakhulu isebenzisa ukunyibilikiswa kweziko lombane. Uninzi lwabo luye lwajoyina inkqubo yokucoca ngaphandle kwesithando somlilo, kwaye ukubunjwa kunye neziphene zangaphakathi zincinci. Imigangatho ye-GB6479 kunye ne-GB5310 ngokwayo ichaza iimfuno zokusulungekiswa ngaphandle kweziko, kunye nokubunjwa kokungcola okuncinci kunye neziphene zangaphakathi, kunye nomgangatho ophezulu wezinto eziphathekayo.

Ukukhethwa: Ngokuqhelekileyo, i-GB / T8163 ipayipi yensimbi eqhelekileyo ifanelekile kwioli, ioli kunye negesi kunye neendaba zoluntu kunye nobushushu bokuyila obungaphantsi kwe-350 ° C kunye noxinzelelo olungaphantsi kwe-10.0MPa; kwi-oyile, ioli kunye ne-gas media, xa iqondo lokushisa loyilo lidlula i-350 ° C Okanye xa uxinzelelo lungaphezu kwe-10.0MPa, i-GB9948 okanye i-GB6479 ibhobho yensimbi eqhelekileyo kufuneka isetyenziswe; kwimibhobho esebenza kwi-hydrogen, okanye imibhobho esebenza kwiindawo ezinoxinzelelo lwe-corrosion, imigangatho ye-GB9948 okanye ye-GB6479 nayo kufuneka isetyenziswe. Yonke imibhobho ye-carbon steel esetyenziswe kumaqondo okushisa aphantsi (ngaphantsi kwe-20 ° C) kufuneka yamkele umgangatho we-GB6479, kwaye kuphela ichaza iimfuno zobunzima befuthe eliphantsi lobushushu bezinto eziphathekayo. Imigangatho ye-GB3087 kunye ne-GB5310 yimigangatho ebekwe ngokukodwa kwiibhobho zensimbi zebhoyili. "Imigaqo yokuPhathwa koKhuseleko lweBoiler" igxininisa ukuba yonke imibhobho eqhagamshelwe kwibhoyila iphantsi kolawulo, kwaye ukusetyenziswa kwezixhobo kunye nemigangatho kufuneka kuhambelane neemfuno "zeMimiselo yokuLawula uKhuseleko lweBhola". Ngoko ke, zisetyenziselwa kwiibhoyili, izikhululo zamandla, ukufudumeza kunye nezixhobo zokuvelisa i-petrochemical. Yonke imibhobho yomphunga kawonke-wonke (enikezelwe yinkqubo) kufuneka yamkele imigangatho ye-GB3087 okanye i-GB5310. Kuyafaneleka ukuba uqaphele ukuba ixabiso lemibhobho yensimbi enemigangatho emihle yombhobho yensimbi iphezulu kakhulu. Ngokomzekelo, ixabiso le-GB9948 liphantse libe yi-1/5 ephezulu kunexabiso lezinto ze-GB8163. Ngoko ke, xa ukhetha imigangatho yezinto zombhobho wensimbi, ingqwalasela ebanzi kufuneka inikwe kwiimeko zokusetyenziswa, okufuneka zithembeke kwaye zibe noqoqosho. Kufuneka kwakhona kuqatshelwe ukuba iipayipi zensimbi ngokuhambelana ne-GB/T20801 kunye ne-TSGD0001, i-GB3087 kunye nemigangatho ye-GB8163 ayiyi kusetyenziselwa imibhobho ye-GC1 (ngaphandle kokuba enye enye i-ultrasonic, umgangatho awukho ngaphantsi kwe-L2.5, kwaye ingaba isetyenziselwa i-GC1 ngoxinzelelo loyilo olungekho mkhulu kunombhobho we-4.0Mpa).

（二）Umbhobho wentsimbi ephantsi ingenamthungo

Kwizixhobo zokuvelisa i-petrochemical, intsimbi ye-chromium-molybdenum esetyenziswa ngokuqhelekileyo kunye ne-chromium-molybdenum-vanadium imigangatho yentsimbi engenamthungo yentsimbi yi-GB9948 "Ipayipi yentsimbi engenamthungo yokuqhekeka kwepetroleum" GB6479 "Uxinzelelo oluphezulu lwentsimbi engenamthungo kwisixhobo sochumisi" GB/T5310 "I-Seamless umbhobho wentsimbi kwibhoyila yoxinzelelo oluphezulu》I-GB9948 iqulethe amabakala e-chromium-molybdenum impahla yensimbi: 12CrMo, 15CrMo, 1Cr2Mo, 1Cr5Mo, njl. I-chromium-molybdenum izinto zentsimbi ezibandakanyiweyo zifakwe kwi-GB6479: 12CrMo, 15CrMo, 1Cr / Tr5Molyb0 kunye ne-GB ye-molybdenum, njl. i-chromium molybdenum vanadium imigangatho yensimbi yensimbi: 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, njl. Phakathi kwabo, eyona isetyenziswa ngokuqhelekileyo yi-GB9948, jonga ngasentla kwiimeko zokukhetha

(三) umbhobho wentsimbi engenamthungo

Imigangatho yemibhobho yentsimbi engenamthungo edla ngokusetyenziswa yile:

Kukho imigangatho emihlanu: GB/T14976, GB13296, GB9948, GB6479, kunye ne-GB5310. Phakathi kwabo, kuphela amabakala amabini okanye amathathu ensimbi engenasici adweliswe kwimigangatho emithathu yokugqibela, kwaye ayiqhelekanga amanqanaba ezinto eziphathekayo.

Ngoko ke, xa imigangatho yemibhobho yentsimbi engenamthungo isetyenziswa kubunjineli, imigangatho ye-GB/T14976 kunye ne-GB13296 isetyenziswa ngokusisiseko.

I-GB/T14976 "Intsimbi engenamthungo yombhobho yokuthutha ulwelo":

Amanqaku ezinto eziphathekayo: 304, 304L kunye nezinye iintlobo ze-19 zilungele ukuthuthwa kwamanzi ngokubanzi.

I-GB13296 "Iibhubhu zentsimbi engenamthungo yentsimbi yeebhoyila kunye nabatshintshisi bobushushu":

Amanqaku ezinto eziphathekayo: 304, 304L kunye nezinye iindidi ezingama-25.

Phakathi kwabo, i-ultra-low-carbon stainless steel (304L, 316L) inokumelana nokugqwala okugqwesileyo. Ngaphantsi kweemeko ezithile, inokuthi ithathe indawo yensimbi ezinzileyo (321, 347) yokumelana nokubola kwimidiya; I-ultra-low-carbon steel stainless ineempawu ezisezantsi zobushushu obuphezulu, ngokuqhelekileyo Isetyenziswa kuphela kumaqondo obushushu angaphantsi kwe-525℃; I-austenitic stainless steel stainless steel stainless steel stainless steel stainless steel stainless steel stainless steel stainless stainless iyakwazi ukumelana nobushushu kunye nobushushu obuphezulu, kodwa iTi in 321 ifakwe ioksijini ngokulula kwaye ilahleke ngexesha lokuwelda. Izihlandlo ezibalulekileyo, i-304, i-316 inomsebenzi wokulwa nokubola jikelele, ixabiso lincinci, ngoko lisetyenziswa ngokubanzi.