Ukukhetha okulungile kwamapayipi ensimbi angenamthungo empeleni kunolwazi olukhulu!

Yiziphi izidingo zokukhetha amapayipi ensimbi angenamthungo okuthuthwa koketshezi okusetshenziswa kakhulu embonini yethu yezinqubo? Bheka isifinyezo sabasebenzi bethu bamapayipi okucindezela:

Amapayipi ensimbi angenamthungo amapayipi ensimbi angenazo izindwangu ezishisiwe ezikhiqizwa ngezindlela zokwelapha ezishisayo njengokubhoboza kanye nokugoqa okushisayo.

Uma kudingeka, ipayipi lokwelapha elishisayo lingadonswa ngokubandayo liye esimweni, usayizi kanye nokusebenza okudingekayo. Njengamanje, amapayipi ensimbi angenamthungo (DN15-600) yiwona amapayipi asetshenziswa kakhulu emishinini yokukhiqiza i-petrochemical.

(一) Ipayipi lensimbi ye-Carbon engenamthungo

Ibanga Lensimbi Yokwenziwa: 10#、20#、09MnV、16Mnngezinhlobo ezine

Okujwayelekile:

Ipayipi Lensimbi Elingenamthungo le-GB8163 Lensizakalo Yoketshezi

GB/T9711 Izimboni zikaphethiloli negesi yemvelo—Ipayipi lensimbi lezinhlelo zokuthutha amapayipi

Ipayipi lensimbi elingenamthungo le-GB6479 lemishini yomanyolo”

Amashubhu ensimbi angenamthungo e-GB9948 okuqhekeka kwephethiloli

Ipayipi lensimbi elingenamthungo le-GB3087 lebhoyila elinomfutho ophansi nophakathi

Amapayipi ensimbi angenamthungo e-GB/T5310 ebhoyila enomfutho ophezulu

I-GB/T8163:Ibanga Lensimbi Yokwenziwa: 10#, 20#, Q345, njll.

Ububanzi bokusetshenziswa: uwoyela, uwoyela negesi kanye nemithombo yezindaba yomphakathi okunokushisa komklamo okungaphansi kuka-350℃ kanye nomfutho ongaphansi kuka-10MPa.

GB6479: Insimbi yezinto ezibonakalayo Ibanga: 10#, 20G, 16Mn, njll.

Ububanzi bokusetshenziswa: uwoyela negesi ngokushisa komklamo -40～400℃ kanye nokucindezela komklamo okungu-10.0～32.0MPa.

GB9948:

Ibanga lensimbi yezinto ezibonakalayo: 10#, 20#, njll.

Ububanzi bokusetshenziswa: izikhathi lapho ipayipi lensimbi le-GB/T8163 lingafaneleki.

GB3087:

Ibanga lensimbi yezinto ezibonakalayo: 10#, 20#, njll.

Ububanzi bokusetshenziswa: umusi oshisayo kakhulu namanzi abilayo kuma-boilers anomfutho ophansi nophakathi.

GB5310:

Insimbi Yezinto Ezibalulekile Ibanga: 20G njll.

Ububanzi besicelo: i-steam medium eshisayo kakhulu yebhoyila enomfutho ophezulu

Ukuhlolwa: Ngokuvamile amapayipi ensimbi okuthuthwa koketshezi kumele ahlolwe ukwakheka kwamakhemikhali, ukuhlolwa kokucindezelwa, ukuhlolwa kokuthamba kanye nokuhlolwa kwe-hydraulic. Amapayipi ensimbi ajwayelekile e-GB5310, GB6479, kanye ne-GB9948, ngaphezu kokuhlolwa okumele kwenziwe kumapayipi ensimbi okuthuthwa koketshezi, ukuhlolwa kokuvutha kanye nokuhlolwa komthelela nakho kuyadingeka; izidingo zokuhlolwa kokukhiqiza zala mapayipi ensimbi amathathu ziqinile. Izinga le-GB6479 liphinde lenze izidingo ezikhethekile zokuqina komthelela ophansi wezinto ezibonakalayo. Ngaphezu kwezidingo zokuhlolwa ezijwayelekile zamapayipi ensimbi okuthuthwa koketshezi, amapayipi ensimbi esezingeni le-GB3087 nawo adinga ukuhlolwa kokugoba okubandayo. Amapayipi ensimbi ajwayelekile e-GB/T8163, ngaphezu kwezidingo zokuhlolwa ezijwayelekile zamapayipi ensimbi okuthuthwa koketshezi, ngokwesivumelwano adinga ukuhlolwa kokunwetshwa kanye nokuhlolwa kokugoba okubandayo. Izidingo zokukhiqiza zalezi zinhlobo ezimbili zamapayipi aziqinile njengezinhlobo ezintathu zokuqala.

Ukukhiqiza: Amapayipi ensimbi ajwayelekile e-GB/T8163 kanye ne-GB3087 ancibilikiswa kakhulu esithandweni esivulekile noma esiguquli, futhi ukungcola kwawo kanye neziphambeko zangaphakathi kukhulu kakhulu. I-GB9948 isebenzisa kakhulu ukuncibilikiswa kwesithando sikagesi. Iningi lawo lijoyine inqubo yokucwenga ngaphandle kwesithando, futhi ukwakheka kanye neziphambeko zangaphakathi kuncane kakhulu. Izindinganiso ze-GB6479 kanye ne-GB5310 ngokwazo zibeka izidingo zokucwenga ngaphandle kwesithando, kanye nokwakheka okuncane kakhulu kweziphambeko zangaphakathi, kanye nekhwalithi ephezulu kakhulu yezinto ezibonakalayo.

Ukukhetha: Ngokuvamile, ipayipi lensimbi elijwayelekile le-GB/T8163 lifanelekela uwoyela, uwoyela negesi kanye nemidiya yomphakathi enezinga lokushisa lokuklama elingaphansi kuka-350°C kanye nengcindezi engaphansi kuka-10.0MPa; kwimidiya kawoyela, uwoyela negesi, lapho izinga lokushisa lokuklama lidlula u-350°C Noma uma ingcindezi ingaphezu kuka-10.0MPa, kufanele kusetshenziswe amapayipi ensimbi ajwayelekile e-GB9948 noma e-GB6479; kumapayipi asebenza ku-hydrogen, noma amapayipi asebenza ezindaweni ezivame ukugqwala, kufanele kusetshenziswe amazinga e-GB9948 noma e-GB6479. Wonke amapayipi ensimbi yekhabhoni asetshenziswa emazingeni okushisa aphansi (angaphansi kuka--20°C) kufanele amukele indinganiso ye-GB6479, futhi kuphela ecacisa izidingo zokuqina komthelela wokushisa okuphansi kwezinto. Izindinganiso ze-GB3087 kanye ne-GB5310 ziyizindinganiso ezibekwe ngqo kumapayipi ensimbi ebhoyila. "Imithethonqubo Yokuqapha Ukuphepha Kwamabhoyila" igcizelela ukuthi wonke amapayipi axhunywe kubhoyila angaphansi kobubanzi bokugadwa, futhi ukusetshenziswa kwezinto nezindinganiso kufanele kuhambisane nezidingo "zeMithethonqubo Yokuqapha Ukuphepha Kwamabhoyila". Ngakho-ke, asetshenziswa kumabhoyila, eziteshini zamandla, ezindaweni zokukhiqiza ukushisa kanye ne-petrochemical. Wonke amapayipi omusi womphakathi (ahlinzekwa uhlelo) kufanele amukele amazinga e-GB3087 noma e-GB5310. Kubalulekile ukuqaphela ukuthi intengo yamapayipi ensimbi anezindinganiso zamapayipi ensimbi zekhwalithi enhle iphakeme kakhulu. Isibonelo, intengo ye-GB9948 icishe ibe yi-1/5 ephezulu kunentengo yezinto ze-GB8163. Ngakho-ke, lapho kukhethwa amazinga ezinto zepayipi lensimbi, kufanele kucatshangelwe kabanzi izimo zokusetshenziswa, okumele zithembeke futhi zibe zezonga imali. Kufanele futhi kuqashelwe ukuthi amapayipi ensimbi ngokuhambisana nezindinganiso ze-GB/T20801 kanye ne-TSGD0001, GB3087 kanye ne-GB8163 akufanele asetshenziselwe amapayipi e-GC1 (ngaphandle kokuthi ngalinye ngalinye liyi-ultrasonic, ikhwalithi ayiphansi kune-L2.5, futhi ingasetshenziswa ku-GC1 enomfutho womklamo ongekho ngaphezu kwepayipi le-4.0Mpa).

(二)Ipayipi lensimbi elingenamthungo eliphansi

Emishinini yokukhiqiza i-petrochemical, amazinga epayipi lensimbi engenamthungo asetshenziswa kakhulu yi-GB9948 “Ipayipi lensimbi elingenamthungo lokuqhekeka kwephethiloli” GB6479 “Ipayipi lensimbi elingenamthungo elinomfutho ophezulu lemishini yomanyolo” GB/T5310 “Ipayipi lensimbi elingenamthungo lebhoyila elinengcindezi ephezulu》I-GB9948 iqukethe amazinga ezinto zensimbi ze-chromium-molybdenum: 12CrMo, 15CrMo, 1Cr2Mo, 1Cr5Mo, njll. Amabanga ezinto zensimbi ze-chromium-molybdenum afakiwe ku-GB6479: 12CrMo, 15CrMo, 1Cr5Mo, njll. I-GB/T5310 iqukethe insimbi ye-chromium molybdenum kanye namazinga ezinto zensimbi ze-chromium molybdenum vanadium: 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12Cr1MoVG, njll. Phakathi kwazo, evame ukusetshenziswa kakhulu yi-GB9948, bheka ngenhla ukuze uthole izimo zokukhetha.

(三) Ipayipi lensimbi engagqwali elingenamthungo

Izindinganiso zamapayipi ensimbi engenasici asetshenziswa kakhulu yilezi:

Kunezindinganiso ezinhlanu: GB/T14976, GB13296, GB9948, GB6479, kanye ne-GB5310. Phakathi kwazo, kunezigaba ezimbili noma ezintathu kuphela zensimbi engagqwali ezibalwe ezindinganisweni ezintathu zokugcina, futhi azizona izigaba zezinto ezisetshenziswa kakhulu.

Ngakho-ke, uma kusetshenziswa amazinga epayipi lensimbi engenasici engenamthungo kwezobunjiniyela, amazinga e-GB/T14976 kanye ne-GB13296 asetshenziswa ngokuyisisekelo.

GB/T14976 “Ipayipi lensimbi engenasici elingenamthungo lokuthuthwa koketshezi”:

Amabanga ezinto: 304, 304L kanye nezinye izinhlobo ezingu-19 zilungele ukuthuthwa koketshezi olujwayelekile.

GB13296 “Amashubhu ensimbi angenamthungo ensimbi engagqwali yama-boilers kanye nama-heat exchanger”:

Amabanga ezinto: 304, 304L kanye nezinye izinhlobo ezingu-25.

Phakathi kwazo, insimbi engagqwali enekhabhoni ephansi kakhulu (304L, 316L) inokumelana okuhle kakhulu nokugqwala. Ngaphansi kwezimo ezithile, ingathatha indawo yensimbi engagqwali eqinile (321, 347) ukuze ikwazi ukumelana nokugqwala kuma-media; insimbi engagqwali enekhabhoni ephansi kakhulu inezakhiwo zomshini eziphansi kakhulu zokushisa okuphezulu, ngokuvamile isetshenziswa kuphela emazingeni okushisa angaphansi kuka-525℃; insimbi engagqwali eqinile enekhabhoni eqinile inezakhiwo zomshini eziqinile zokumelana nokugqwala kanye nezakhiwo zomshini ezishisa kakhulu, kodwa i-Ti ku-321 i-oxidized futhi ilahleke kalula ngesikhathi sokushisela, Ngakho-ke kunciphisa ukusebenza kwayo kokulwa nokugqwala, intengo yayo iphakeme kakhulu, lolu hlobo lwezinto luvame ukusetshenziswa ezikhathini ezibaluleke kakhulu, i-304, 316 inokusebenza okujwayelekile kokulwa nokugqwala, intengo ishibhile, ngakho-ke isetshenziswa kabanzi.