I-A106gr.B umkhiqizi wamapayipi ensimbi angenamthungo ukuthengisa okuqondile
Ipayipi lensimbi elingenamthungo le-ASTM A106 lingelepayipi lensimbi elijwayelekile laseMelika, elihlanganisa i-a106-a ne-a106-b. Eyokuqala ilingana nempahla yasekhaya engu-10#, kanti lena yakamuva ilingana nempahla yasekhaya engu-20#. Ingowochungechunge olujwayelekile lwe-carbon steel futhi ingenye yezinto ezisetshenziswa kakhulu. Ipayipi lensimbi elingenamthungo le-ASTM A106 lihlanganisa izinqubo ezimbili: ukudweba okubandayo nokugoqa okushisayo. Ngaphezu kwezinqubo ezahlukene zokukhiqiza, zihlukile ngokunemba, izinga eliphezulu, ubukhulu obuncane, izakhiwo zemishini kanye nesakhiwo senhlangano. Isetshenziswa kabanzi ku-petroleum, embonini yamakhemikhali, kubhayela, esiteshini samandla, umkhumbi, ukukhiqizwa kwemishini, imoto, izindiza, i-aerospace, amandla, i-geology, ukwakhiwa, imboni yezempi nezinye izimboni.
Indlela yokubala ye-ASTM A106 yokuthwala ingcindezi yepayipi lensimbi engenamthungo
S = 8; I-P ingaphansi kuka-17.5MPa ipayipi lensimbi elingenamthungo, s iyisici sokuphepha sepayipi lensimbi elingenamthungo, futhi ukushuba kodonga kungu-3mm,
Ukucindezela okuvunyelwe kwepayipi P = (2)* σ/ S* δ) / D
Kuphi: ingcindezi ingu-p futhi ukujiya kodonga kungu-δ, Iyini ingcindezi ephezulu yepayipi lensimbi engenamthungo?
Vumela amandla aqinile wento abe ngu-σ, u-Zhan Rongrong wafunda ukuthi ububanzi obungaphandle bepayipi ngu-D;
Ukujiya kodonga lwamapayipi δ=( P*D) / (2* σ/ S)
Lapho s kuyisici sokuphepha;
Ngenxa yokuthi u-P ungaphansi kuka-7MPa, u-Zhan Jirong wafunda ukuthi u-s ukhethwa njengo-s = 4;
Sikhetha isici sokuphepha njengo-s = 6; Amandla aqinile wensimbi engama-20 yi-410mpa, imakethe yensimbi, futhi ububanzi bangaphandle bepayipi ngu-d
Ipayipi lensimbi elijwayelekile laseMelika liwumugqa omude wensimbi onengxenye engenalutho futhi awekho amalunga azungezile. Ipayipi lensimbi linendawo engenalutho futhi lisetshenziswa kabanzi njengepayipi lokudlulisa uketshezi. Izinga elijwayelekile laseMelika lensimbi engenamthungo, elifana nepayipi lokudlulisa uwoyela, igesi yemvelo, igesi, amanzi nezinye izinto eziqinile. Uma kuqhathaniswa nensimbi eqinile njengensimbi eyindilinga, ipayipi lensimbi inokugoba okufanayo namandla okugoqa kanye nesisindo esilula. Kuyinsimbi yesigaba sezomnotho. Isetshenziswa kakhulu ekwenzeni izingxenye zesakhiwo kanye nezingxenye zemishini, njengepayipi lokubhoboza uwoyela, umshini wokuhambisa imoto, uhlaka lwamabhayisikili kanye nesikafula sensimbi esisetshenziswa ekwakheni. Ukukhiqiza izingxenye zendandatho ngamapayipi ensimbi kungathuthukisa ukusetshenziswa kwezinto, kube lula izinqubo zokukhiqiza, futhi konge izinto zokwakha namahora okucubungula, njengamaringi okugingqa, imikhono kaJack, njll. Amapayipi ensimbi asetshenziswe kabanzi ekukhiqizeni. Ipayipi lensimbi liphinde libe yinto esemqoka yazo zonke izinhlobo zezikhali ezijwayelekile. Isibhamu kanye nomgqomo kufanele kwenziwe ngepayipi lensimbi. Ipayipi lensimbi lingahlukaniswa libe yipayipi eliyindilinga kanye nepayipi elimise okukhethekile ngokuya ngendawo ehlukene ye-cross-sectional kanye nokuma. Ngenxa yokuthi indawo eyindilinga inkulu kakhulu ngaphansi kwesimo somjikelezo olinganayo, uketshezi oluningi lungathuthwa ngepayipi eliyindilinga. Ukwengeza, lapho isigaba sendandatho singaphansi kokucindezela kwe-radial yangaphakathi noma yangaphandle, amandla afana kakhulu. Ngakho-ke, amapayipi amaningi ensimbi angamapayipi ayindilinga.
Phakathi kwamapayipi ensimbi ajwayelekile aseMelika, i-ASTM A53 gr. B ipayipi lensimbi engenamthungo ngenjongo evamile, i-ASTM A106 / A53 gr. Ipayipi lensimbi eline-chamfered ne-chamfered, i-bs1387-1985 ipayipi lensimbi elijwayelekile laseBrithani ERW ipayipi elishiselwe imvamisa ephezulu kanye nepayipi elinothayela, i-ASTM A333 - 40 ℃ - 101 ℃ ipayipi lensimbi elingenamthungo eliphansi, i-ASTM A179 ipayipi lensimbi elingenamthungo lokushintshanisa ukushisa ne-condenser. Ubude bepayipi lensimbi: 5.8m, 6m futhi kufika ku-12m, Lingase futhi likalwe ngokuvumelana nezidingo zomsebenzisi.
Ububanzi bangaphandle bomkhiqizo buyi-1 / 2 "- 28", 21.3-711.2mm, futhi ukujiya kodonga kungu-sch30, sch40, STD, XS, sch80, sch160, XXS, njll. ipayipi elingenamthungo lingaba ngaphansi kwe-surface anti -ukwelashwa kokugqwala njengoba kudingekile, ngezivalo zamapayipi epulasitiki emikhawulweni yomibili, i-chamfering njengoba kudingeka, nokuhlolwa kwempahla.
