Ipayipi lensimbi elingenamthungo lenziwa ngaphandle kokushisela ngezindlela ezishisayo zokusebenza njengokuginqika okushisayo okunezimbobo. Uma kunesidingo, ipayipi elisebenza ngokushisa lingaqhutshekiselwa phambili ngokubanda-setshenzwa ngendlela oyifunayo, ubukhulu kanye nokusebenza. Njengamanje, ipayipi lensimbi elingenamthungo liyipayipi elisetshenziswa kakhulu kumayunithi wokukhiqiza we-petrochemical.

(1)Carbon steel ipayipi Seamless steel 

Ibanga lezinto ezibonakalayo: 10, 20, 09MnV, 16Mn 4 izinhlobo seziphelele

Okujwayelekile: I-GB8163 “Ipayipi lensimbi elingenamthungo lokuthutha uketshezi”

I-GB/T9711 "izimo zobuchwepheshe zokulethwa kwepayipi likawoyela negesi yemvelo"

GB6479“Ipayipi lensimbi engenamthungo ephezulu yokucindezela kwemishini kamanyolo“

GB9948"Ipayipi lensimbi elingenamthungo lokuqhekeka kwe-petroleum"

GB3087“Amashubhu ensimbi angenamthungo amaboiler anengcindezi ephansi naphakathi”

I-GB/T5310“Amashubhu ensimbi angenamthungo ama-boilers anengcindezi ephezulu“

I-GB/T8163:

Ibanga lezinto: 10, 20,Q345, njll.

Ububanzi bokusebenza: izinga lokushisa eliklanyelwe lingaphansi kuka-350 ℃, ingcindezi ingaphansi kuka-10MPa uwoyela, uwoyela kanye nendawo yomphakathi

GB6479:

Ibanga lezinto ezibonakalayo: 10, 20G, 16Mn, njll.

Ububanzi bokusebenza: uwoyela negesi enezinga lokushisa lokuklama -40 ~ 400 ℃ kanye nengcindezi yokuklama engu-10.0 ~ 32.0MPa

GB9948:

Ibanga lezinto ezibonakalayo: 10, 20, njll.

Ububanzi besicelo: ayifanele izikhathi zepayipi lensimbi ye-GB/T8163.

GB3087:

Ibanga lezinto ezibonakalayo: 10, 20, njll.

Ububanzi besicelo: i-boiler ye-pressure ephansi nephakathi nendawo eshisa kakhulu, amanzi abilayo, njll.

GB5310:

Ibanga lezinto ezibonakalayo: 20G, njll.

Ububanzi bokusebenza: i-steam medium eshisa kakhulu ye-boiler yokucindezela okuphezulu

Ukuhlola: ukuhlaziya ukwakheka kwamakhemikhali, ukuhlolwa kokuqina, ukuhlolwa kokucaba kanye nokuhlolwa komfutho wamanzi kufanele kwenziwe epayipini lensimbi elisetshenziselwa ukuthuthwa koketshezi okuvamile.

GB5310, GB6479, GB9948izinhlobo ezintathu zamapayipi ensimbi ajwayelekile, ngaphezu kweshubhu yokuthutha uketshezi kufanele ihlolwe, kodwa futhi iyadingeka ukwenza ukuhlolwa kokuvutha kanye nokuhlolwa komthelela; Izidingo zokuhlolwa kokukhiqiza zalezi zinhlobo ezintathu zamapayipi ensimbi ziqinile impela.

GB6479izinga libuye lenze izidingo ezikhethekile zokuqina komthelela ophansi wokushisa kwezinto.

Ipayipi lensimbi elijwayelekile le-GB3087, ngaphezu kwezidingo ezijwayelekile zokuhlola zepayipi lensimbi lokuthutha uketshezi, kodwa futhi lidinga ukuhlolwa kokugoba okubandayo.

Ipayipi lensimbi elijwayelekile le-GB/T8163, ngaphezu kwezidingo ezijwayelekile zokuhlolwa kwepayipi lensimbi lokuthutha uketshezi, ngokwezidingo zesivumelwano sokwenza ukuhlolwa kokuvutha nokugoba okubandayo.Izidingo zokukhiqiza zalezi zinhlobo ezimbili zamapayipi aziqinile kangako. njengalezo zezinhlobo ezintathu zokuqala.

Ukukhiqiza: I-GB/T/8163 kanye ne-GB3087 ipayipi lensimbi elijwayelekile lisebenzisa isithando somlilo esivulekile noma ukuncibilikiswa kwesiguquli, ukungcola kwalo kanye nokukhubazeka kwangaphakathi kungaphezulu kakhulu.

GB9948ukuncibilika kwesithando somlilo sikagesi. Iningi lenezelwa enqubweni yokucwenga isithando somlilo ngezithako ezimbalwa uma kuqhathaniswa namaphutha angaphakathi.

GB6479futhiGB5310izindinganiso ngokwazo zicacisa izidingo zokucwenga ngaphandle kwesithando somlilo, ngokungcola okuncane kanye namaphutha angaphakathi kanye nekhwalithi ephezulu kakhulu yezinto ezibonakalayo.

Izindinganiso zamapayipi ensimbi ambalwa angenhla akhiqizwa ngokulandelana kwekhwalithi ukusuka kokuphansi kuye phezulu:

I-GB/T8163＜GB3087＜GB9948＜GB5310＜GB6479

Ukukhethwa: ngaphansi kwezimo ezijwayelekile, ipayipi lensimbi elijwayelekile le-GB/T8163 lifanele izinga lokushisa lokuklama lingaphansi kuka-350 ℃, ingcindezi ingaphansi kuka-10.0mpa imikhiqizo kawoyela, uwoyela negesi kanye nezimo zomphakathi eziphakathi;

Ngemikhiqizo kawoyela, i-oyela negesi medium, lapho izinga lokushisa lokuklama lingaphezu kuka-350 ℃ noma ingcindezi inkulu kuno-10.0mpa, kufanelekile ukukhethaGB9948 or GB6479ipayipi lensimbi elijwayelekile;

GB9948 or GB6479izinga kufanele futhi lisetshenziselwe amapayipi asebenza eduze kwe-hydrogen noma ezindaweni ezithandwa ukugqwala kwengcindezi.

Izinga lokushisa eliphansi elijwayelekile (ngaphansi kuka -20 ℃) ​​kusetshenziswa ipayipi lensimbi ye-carbon kufanele kusetshenzisweGB6479ejwayelekile, kuphela icacisa izidingo zokuqina komthelela ophansi wokushisa kwezinto.

GB3087 futhiGB5310amazinga amiselwe ngokukhethekile izindinganiso zamapayipi ensimbi yokubhayela. "Imithetho yokuqondisa ukuphepha kwebhoyili" igcizelele ukuthi konke okuxhunywe kumashubhu kabhayela kungokwendawo yokuqondisa, ukusetshenziswa kwento kanye nezinga kufanele kuhambisane nemithetho yokuphepha kukabhayela, ngakho-ke, ubhayela, isiteshi sikagesi, ukushisisa nokukhiqizwa kwe-petrochemical. idivayisi esetshenziswa epayipini lesitimu somphakathi kufanele isetshenziswe (ngokunikezwa kwesistimu) GB3087 noma okujwayelekileGB5310.

Kuyaphawuleka ukuthi ikhwalithi yezindinganiso ezinhle zamapayipi ensimbi, amanani epayipi ensimbi aphakeme kakhulu, njengeGB9948kune-GB8163 intengo yezinto ezibonakalayo icishe ibe yi-1/5, ngakho-ke, ekukhetheni izindinganiso zezinto ezibonakalayo zamapayipi ensimbi, kufanele kucatshangelwe ngokuvumelana nemibandela yokusetshenziswa, kokubili okuthembekile nezomnotho. Kufanele futhi kuqashelwe ukuthi amashubhu ensimbi ngokuhambisana ne-GB/T20801 ne-TSGD0001, GB3087 kanye ne-GB8163 ngeke asetshenziswe ku-GC1 piping (ngaphandle uma i-ultrasonic ngayinye, ikhwalithi engekho ngaphansi kwe-L2.5, ingasetshenziswa ekwakhiweni kwamapayipi e-GC1(1) ingcindezi engenkulu kune-4.0Mpa).

(2) Ipayipi yensimbi engenamthungo ephansi ingxubevange yensimbi

Ezikhungweni zokukhiqiza i-petrochemical, amazinga epayipi lensimbi engenamthungo avame ukusetshenziswa ensimbi ye-chromium-molybdenum ne-chromium-molybdenum vanadium steel

GB9948"Ipayipi lensimbi engenamthungo ye-petroleum Cracking“

GB6479 "Ipayipi lensimbi engenamthungo ephezulu yokucindezela kwemishini kamanyolo“

I-GB/T5310 “Amashubhu ensimbi angenamthungo ama-boilers anengcindezi ephezulu“

GB9948iqukethe amamaki ensimbi e-chromium molybdenum: 12CrMo, 15CrMo, 1Cr2Mo, 1Cr5Mo njalonjalo.

GB6479iqukethe i-chromium molybdenum steel grade: 12CrMo, 15CrMo, 1Cr5Mo njalonjalo.

I-GB/T5310iqukethe insimbi ye-chromium-molybdenum kanye namabanga wensimbi ye-chromium-molybdenum vanadium: 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, njll.

Phakathi kwazo,GB9948isetshenziswa kakhulu.