Uwoyela wepayipi lepayipi elingenamthungo le-tube boiler kanye nepayipi legesi
Ipayipi elinomfutho ophezulu elingenamthungo，Ishubhu likabhayela elinomfutho ophezulu liwuhlobo lweshubhu lokubhayela, liyingxenye yeshubhu lensimbi engenamthungo.Indlela yokukhiqiza iyafana nepayipi elingenamthungo, kodwa kunezidingo eziqinile ohlotsheni lwensimbi olusetshenziselwa ukwakha ipayipi lensimbi.Ishubhu le-boiler elinomfutho ophakeme livame ukusetshenziswa ekushiseni okuphezulu nasezimeni zengcindezi ephezulu, ishubhu ye-boiler enengcindezi ephezulu isetshenziswa ikakhulukazi ukwenza umfutho ophakeme kanye ne-ultra high pressure boiler superheater tube, i-reheater tube, ipayipi, ipayipi elikhulu le-steam nokunye.
Ishubhu likabhayela elinomfutho ophansi nomaphakathi GB3087-2008, ishubhu likabhayela elinomfutho ophezulu i-GB5310-2008 lisetshenziselwa ukwenza zonke izinhlobo zesakhiwo se-boiler esishisayo esishisayo, ishubhu lamanzi abilayo kanye ne-locomotive boiler eneshubhu yesitimu esishisa kakhulu, ishubhu enkulu yentuthu, ishubhu elincane lentuthu. kanye nepayipi lepayipi lezitini le-arch lekhwalithi ephezulu yekhabhoni yesakhiwo sensimbi eshisayo egoqiwe futhi ebandayo edonsa (egoqiwe) yensimbi engenamthungo.Ipayipi lensimbi elingenamthungo lesakhiwo (i-GB/T8162-2008) lisetshenziselwa isakhiwo esijwayelekile kanye nesakhiwo somshini wepayipi lensimbi engenamthungo.
Ukucaciswa nekhwalithi yokubukeka: GB5310-2008 "Ithubhu yensimbi engenamthungo kubhayela ocindezelayo" ububanzi bepayipi eligoqiwe elishisayo 22 ~ 530mm, ukujiya kodonga 20 ~ 70mm.Abandayo adonswe (okubandayo rolling) tube ububanzi 10 ~ 108mm, udonga ukujiya 2.0 ~ 13.0mm.
Ipayipi lensimbi elingenamthungo elimise okukhethekile yitemu elivamile lepayipi lensimbi elingenamthungo elinobunye ubujamo besigaba esiphambanayo ngaphandle kwepayipi eliyindilinga.Ngokusho komumo nobukhulu obuhlukene besigaba sepayipi lensimbi, lingahlukaniswa libe ukujiya okulingana odongeni ipayipi lensimbi elingenamthungo elimise okukhethekile (ikhodi D), ukushuba okungalingani kodonga olumise okwesipesheli ipayipi lensimbi elingenamthungo (ikhodi BD), ububanzi obuguquguqukayo obukhethekile- ipayipi lensimbi elimise okomthungo (ikhodi BJ).Amashubhu ensimbi angenamthungo amise okukhethekile asetshenziswa kabanzi ezingxenyeni ezihlukene zesakhiwo, amathuluzi nezingxenye zemishini.Uma kuqhathaniswa neshubhu eliyindilinga, ishubhu elibunjiwe ngokuvamile linomzuzu omkhulu we-inertia kanye ne-modulus yesigaba, inokugoba okukhudlwana nokuphikiswa kwe-torsion, inganciphisa kakhulu isisindo sesakhiwo, yonga insimbi.
Ipayipi Elingenamthungo Eliphezulu Lokucindezela, Ukwakheka Kwamakhemikhali
(1)GB3087-2008 izinhlinzeko ze-"Seamless Steel pipe for Low and medium pressure boiler" izinhlinzeko.Indlela yokuhlola ukwakheka kwamakhemikhali ngokuya nge-gb222-84 kanye ne-GB223 "Izindlela Zokuhlaziya Amakhemikhali Ensimbi Nengxubevange" ingxenye efanele.
(2)GB5310-2008 izinhlinzeko ze-"Seamless Steel Tube for high pressure boiler".Indlela yokuhlola ukwakheka kwamakhemikhali ngokuya nge-GB222-84 kanye "Nendlela Yokuhlaziya Amakhemikhali E-Iron Nensimbi Ne-alloy", GB223 "Indlela yokuhlaziya amakhemikhali e-Iron ne-Steel kanye ne-Alloy".
(3) Ukuhlolwa kokwakheka kwamakhemikhali kwepayipi lensimbi likabhayela elingenisiwe kuzokwenziwa ngokuvumelana nezindinganiso ezifanele ezishiwo kwinkontileka.
I-Chemical CompositionHigh Pressure Ipayipi Elingenamthungo, Ibanga Lensimbi
(1) Ikhwalithi ephezulu ye-carbon structural steel steel 20G, 20MnG, 25MnG.
(2) Insimbi yesakhiwo se-alloy 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, njll.
3Amashubhu ensimbi alethwa esimweni sokwelashwa kokushisa.
Ngaphezu kwalokho, i-microstructure, usayizi wokusanhlamvu kanye nongqimba lwe-decarburization lwamashubhu ensimbi aphelile nawo ayadingeka.
Ipayipi Elingenamthungo Eliphezulu Lokucindezela, Izakhiwo Zomzimba Ze
(1) I-GB3087-82 "Ithubhu yensimbi engenamthungo ye-boiler yokucindezela okuphansi nokuphakathi".Ukuhlolwa kwe-tensile ngokuya nge-GB/T228-87, ukuhlolwa kwe-hydraulic ngokusho kwe-GB/T241-90, ukuhlolwa kokucaba ngokusho kwe-GB/T246-97, ukuhlolwa kwe-flaring ngokuya nge-GB/T242-97, ukuhlolwa okugoba okubandayo ngokusho kwe-GB244-97.
(2) I-GB5310-95 "I-seamless steel tube kubhayela ocindezelayo" izinhlinzeko.Ukuhlolwa kwe-tension, ukuhlolwa kwengcindezi yamanzi kanye nokuhlolwa kwe-flatening kuyafana ne-gb3087-82;Ukuhlolwa komthelela ngokuya nge-GB229-94, ukuhlolwa kwe-flaring ngokuya nge-GB/T242-97, ukuhlolwa kosayizi wokusanhlamvu ngokuya nge-YB/T5148-93;Ngokusho kwe-GB13298-91 yokuhlolwa kwe-microstructure, i-GB224-87 yokuhlola ungqimba lwe-decarburization kanye ne-GB/T5777-96 yokuhlolwa kwe-ultrasonic.
(3) Ukuhlolwa kwezinto ezibonakalayo kanye nezinkomba zamashubhu obhayela angenisiwe kuzokwenziwa ngokuvumelana nezindinganiso ezifanele ezibalulwe kwinkontileka.
Ipayipi Elingenamthungo Eliphezulu Lokucindezela, Izindlela Zokukhiqiza
Ipayipi elinomfutho ophezulu elingenamthungo，Iwuhlobo lweshubhu engenamthungo.Indlela yokukhiqiza iyafana nepayipi elingenamthungo, kodwa kunezidingo eziqinile ohlotsheni lwensimbi olusetshenziselwa ukwakha ipayipi lensimbi.Ngokusho ukusetshenziswa lokushisa ihlukaniswe ezimbili izinhlobo kubhayela jikelele tube kanye high-ingcindezi kubhayela tube.
① Ipayipi elinomfutho ophezulu, uma izinga lokushisa elisebenzayo lingaphansi kuka-450 ℃, ipayipi lasekhaya lenziwa ikakhulukazi ngo-no.10 kanye no-20 carbon bonded steel hot roll rolling pipe noma ipayipi elidonswa ngokubanda.
② Ipayipi elingenamthungo eliphakeme lokucindezela, Uma lisetshenziswa, ipayipi livame ukuba ngaphansi kwezinga lokushisa eliphezulu nokucindezela okukhulu.Ngaphansi kwesenzo sokushisa okuphezulu kwegesi ye-flue kanye nomhwamuko wamanzi, i-oxidation kanye nokugqwala kuzokwenzeka.Ipayipi lensimbi liyadingeka ukuze libe namandla ahlala isikhathi eside, ukumelana nokugqwala okuphezulu kwe-oxidation kanye nokuzinza okuhle kwe-microstructure.
| Okujwayelekile | Ibanga lensimbi | Ukwakheka kwamakhemikhali (%) | |||||||||||||
| C | Si | Mn | P | S | Cr | Mo | Cu | Ni | V | AL | W | Nb | N | ||
| ASME SA106 | I-SA106B | 0.17 ~0.25 | ≥0.1 | 0.7 ~1.0 | ≤0.03 | ≤0.03 | |||||||||
| I-SA106C | 0.23 ~0.27 | ≥0.1 | 0.7 ~1.0 | ≤0.03 | ≤0.03 | ||||||||||
| ASME SA333 | SA333I | 0.09 ~0.12 | / | 0.7 ~1.0 | ≤0.02 | ≤0.01 | |||||||||
| SA333II | 0.09 ~0.12 | ≥0.1 | 0.9~ 1.1 | ≤0.02 | ≤0.01 | ||||||||||
| ASME A335 | I-SA335P11 | 0.05 ~0.15 | 0.5 ~1.0 | 0.3 ~0.6 | ≤0.03 | ≤0.03 | 1.0 ~1.5 | 0.5 ~1.0 | |||||||
| I-SA335P12 | 0.05 ~0.15 | ≤0.5 | 0.3~ 0.6 | ≤0.03 | ≤0.03 | 0.8 ~1.25 | 0.44 ~0.65 | ||||||||
| I-SA335P22 | 0.05 ~0.15 | ≤0.5 | 0.3~ 0.6 | ≤0.03 | ≤0.03 | 1.9 ~2.6 | 0.87 ~1.13 | ||||||||
| I-SA335P5 | ≤0.15 | ≤0.5 | 0.3~ 0.6 | ≤0.03 | ≤0.03 | 4.0 ~6.0 | 0.45 ~0.65 | ||||||||
| I-SA335P91 | 0.08 ~0.12 | 0.2 ~0.5 | 0.3~ 0.6 | ≤0.02 | ≤0.01 | 8.0 ~9.5 | 0.85 ~1.05 | ≤0.4 | 0.18 ~0.25 | ≤0.015 | 0.06 ~0.1 | 0.03 ~0.07 | |||
| I-SA335P92 | 0.07 ~0.13 | ≤0.5 | 0.3~ 0.6 | ≤0.02 | ≤0.01 | 8.5 ~9.5 | 0.3~ 0.6 | B0.001 0.006 | ≤0.4 | 0.15 ~0.25 | ≤0.015 | 1.5 ~2.0 | 0.04 ~0.09 | 0.03 ~0.07 | |
| I-DIN 17175 | ST45.8III | ≤0.21 | 0.1 ~0.35 | 0.4 ~1.2 | ≤0.04 | ≤0.04 | ≤0.3 | ||||||||
| 15Mo3 | 0.12 ~0.2 | 0.1 ~0.35 | 0.4 ~0.8 | ≤0.035 | ≤0.035 | 0.25 ~0.35 | |||||||||
| 13CrMo44 | 0.1 ~0.18 | 0.1 ~0.35 | 0.4 ~0.7 | ≤0.035 | ≤0.035 | 0.7 ~1.1 | 0.45 ~0.65 | ||||||||
| 10CrMo910 | 0.08 ~0.15 | ≤0.5 | 0.3 ~0.7 | ≤0.025 | ≤0.02 | 2.0 ~2.5 | 0.9 ~1.1 | ≤ 0.3 | ≤0.3 | ≤0.015 | 0.015 ~0.045 | ||||
| EN10216 -2 | WB36 | ≤0.17 | 0.25 ~0.5 | 0.8 ~1.2 | ≤0.025 | ≤0.02 | ≤0.3 | 0.25 ~0.5 | 0.5 ~0.8 | 1.0 ~1.3 | ≤0.015 | ||||
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