Paịpụ 316L nke ejiri ígwè anaghị agba nchara kpuchie | Nkwado ígwè Carbon na Alloy maka ọrụ CO₂, Boiler, Exchanger Okpomọkụ na Okpomọkụ dị ala - Womic Steel

Q1: Kedu okpomọkụ kachasị elu maka mkpuchi 316L n'ọrụ mmebi?
A: Enwere ike iji 316L ruo ihe dị ka450°C(840°F) n'ọrụ na-emebi ihe na-aga n'ihu. N'elu nke ahụ, mmetụta uche (mmiri ozuzo carbide) nwere ike ime, na-ebelata iguzogide pitting. Maka okpomọkụ dị elu, tụlee Alloy 825 ma ọ bụ 625 cladding.

Q2: Enwere ike iji paịpụ 316L kpuchie ya maka ọrụ mmiri ara ehi (H₂S)?
A: 316Lokena ọrụ mmiri ara ehi. NACE MR0175 / ISO 15156 na-enye ohere 316L na gburugburu mmiri ara ehi naanị ma ọ bụrụ na: ọdịnaya chloride dị ala (<50 ppm), pH >3.5, okpomọkụ <60°C, na nrụgide akụkụ H₂S <0.05 psi. Maka gas mmiri ara ehi a na-ahụkarị (H₂S dị elu), anyị na-akwado Incoloy 825 ma ọ bụ mkpuchi Alloy 28 kama.

Q3: Kedu ígwè nkwado m kwesịrị ịhọrọ maka mgbidi mmiri ọkụ?
A:SA-210 Gr.Cbụ ọkọlọtọ maka mgbidi mmiri na ihe ndị na-eme ka akụ na ụba sie ike. Ọ bụrụ na ihe na-agba mmiri gị dị obere ma nwee okpomọkụ ígwè <450°C, nke a bụ nhọrọ kacha mma.

Q4: Achọrọ m ike mmetụta okpomọkụ dị ala (-45°C). Enwere m ike iji ihe mkpuchi 316L?
A: Ee. Họrọ ígwè nkwadoASTM A333 Gr.6nke a nwalere mmetụta ahụ na -45°C. Ihe mkpuchi 316L anaghị emetụta ihe mmetụta ahụ; ọ na-anọgide na-agbanwe agbanwe na obere okpomọkụ. Enwere ike inye paịpụ mkpuchi ahụ dum na nnwale Charpy zuru oke.

Q5: Maka ọkpọkọ CO₂ dị elu (1500 psi, 80°C), kedu ngwakọta ị na-akwado?
A:Nkwado API 5L X65(maka ike) +Ihe mkpuchi 316L 2.5-3.0 mm(maka ihe mgbochi nchara). Nke a bụ ihe ngwọta gas dị ụtọ a na-ejikarị eme ihe n'ọtụtụ ebe na Middle East na North America.

Q6: Kedu ihe dị iche n'etiti SA-106 Gr.B na SA-210 Gr.C maka paịpụ a kpuchiri ekpuchi?
A: SA-210 Gr.C nwere ike nrụgide dị elu (485 MPa vs 415 MPa) ma e mere ya kpọmkwem maka ọkpọkọ boiler. SA-106 Gr.B bụ maka ọkpọkọ okpomọkụ dị elu n'ozuzu. Maka ngwa boiler, jiri SA-210; maka ahịrị mbufe ụlọ ọrụ mmepụta ihe, a na-anabata SA 106.

Q7: Enwere m ike ịnweta asambodo EN 10204 Ụdị 3.2 maka ọkpọkọ ndị a a kpuchiri ekpuchi?
A: Ee. Anyị na-arụ ọrụ na TÜV, BV, DNV, SGS, na ABS. A na-akwụ ụgwọ mgbakwunye ma oge ndu na-agbatị site na izu 1-2.

Q8: Njikọ dị n'etiti 316L na ígwè carbon ọ nwere ike ibute mmebi hydrogen?
A: N'ọrụ CO₂ dị ụtọ (enweghị nchekwa katodic karịa voltaji), mba. N'ọrụ sour service (H₂S), njikọ njikọ abụghị ụzọ mgbawa kacha mma ma ọ bụrụ na e mere ya nke ọma. Agbanyeghị, 316L n'onwe ya nwere oke ike. Maka H₂S dị elu, anyị na-akwado ka ejiri nickel alloy kpuchie ya.

Q9: Kedu ihe kacha nta ọkpụrụkpụ mkpuchi 316L ị na-akwado?
A: 1.5 mm bụ nke kacha nta maka njikọ a pụrụ ịtụkwasị obi na nke na-emebi emebi. Maka ọrụ CO₂ siri ike nke nwere ọsọ dị elu, anyị na-akwado 2.5-3.0 mm.

Q10: Ị nwere ike ịnye ọkpọkọ ndị a a kpara akpa na nhazi U-bent maka ihe mgbanwe okpomọkụ?
A: Ee, maka paịpụ a kpuchiri nke ọma (OD ≤168 mm). Anyị na-eji mandrel eme mgbagọ oyi, wee jiri ọgwụgwọ okpomọkụ belata nrụgide na 100% NDT nke mpaghara mgbagọ. Biko rịọ maka ọnụahịa U-bend dị iche.

Q11: Ị na-enye "ngwaọrụ nhọrọ ọkpọkọ a kpara akpa" maka ígwè dị iche iche na-akwado azụ?
A: Ee. Zitere anyị ọnọdụ ọrụ gị: oke okpomọkụ, obere okpomọkụ, nrụgide, ihe mejupụtara mmiri mmiri (CO₂, H₂S, chlorides, pH). Anyị ga-akwado ezigbo ihe nkwado ígwè + ọkpụrụkpụ mkpuchi + ọkwa nyocha.

Q12: Enwere nnukwu ọdịiche dị n'ọnụ ahịa n'etiti SA-210+316L na tube siri ike nke 316L?
A: Ee. Maka ọkpọkọ mgbidi nke 63.5mm OD × 5mm, 316L siri ike dị ihe dị kaỌnụ ego dị okpukpu 2.5-3 karịakarịa paịpụ SA-210+316L (ihe mkpuchi 2mm). Ka mgbidi ahụ siri ike, otú ahụ ka nchekwa ahụ si ka ukwuu.

Q13: Gịnị mere m ga-eji họrọ ọkpọkọ a na-anaghị agbaji agbaji karịa ọkpọkọ a na-eji akwa agbanye?
A: Paịpụ a na-eji akwa kpuchie nke na-enweghị ntụpọ na-ewepụnjikọta njikọta ogologo ọ bụla, nke bara uru maka ọrụ okirikiri okpomọkụ dị elu, ọrụ hydrogen, na ebe enwere ihe egwu nke chloride SCC ịwakpo weld ahụ. Maka ọtụtụ ngwa paịpụ ahịrị (X65+316L), paịpụ a kpara akpa dị ezigbo mma ma dịkwa ọnụ ala karịa.

Q14: Ị nwere ike itinye ID na OD?
A: Anyị nwere ike, mana nke ahụ bụ ihe pụrụ iche. Dịka ọ na-adịkarị, otu oyi akwa CRA dị na ID zuru oke. Maka nchara mpụga, anyị na-akwado agba, mkpuchi, ma ọ bụ usoro mkpuchi mpụga dị iche (dịka ọmụmaatụ, mkpuchi njikọta). Biko jụọ maka mkpuchi nwere okpukpu abụọ.

Q15: Kedu ka m ga-esi nye iwu ngwakọta nke ígwè nkwado?
A: Nye ihe ahịrị maka nke ọ bụla: ọkwa ígwè nkwado, OD, isi WT, ọkpụrụkpụ ihe mkpuchi, ogologo, ọnụọgụ. Anyị ga-ekwu maka otu ngwakọta. A na-anabata iwu nnwale kacha nta maka otu nha.

Q16: Ọ dị mkpa ka a pịpịa ihe maka mkpuchi 316L?
A: Ee. Pickling na-ewepụ oke okpomọkụ e mepụtara n'oge a na-ewepụ ya na ọgwụgwọ okpomọkụ, na-eme ka oyi akwa ahụ dịghachi mma, ma na-eme ka elu dị ọcha maka nlele. A na-etinye pickled na passivate n'ọrụ anyị. Ọ bụrụ na ịchọghị pickling (dịka ọmụmaatụ, maka mkpuchi ozugbo), biko kọwaa.

Q17: Ị na-enye PMI (Positive Material Identification) na mkpuchi 316L?
A: Ee. Anyị nwere ike ime XRF n'ọtụtụ ebe n'akụkụ ọkpọkọ ọ bụla, ma tinye akụkọ ahụ na dossier dị mma. Enwere obere ụgwọ maka ọkpọkọ ọ bụla maka nnukwu iwu.

Q18: Enwere ike inye paịpụ a kpuchiri ekpuchi na njedebe beveled na CRA buttering?
A: Ee. Akuku bevel nkịtị dị 30-35° yana ọdịda 1.6 mm. A na-enweta bọta CRA (2-3 mm nke Alloy 625 ma ọ bụ ihe na-eme ka ihe dị n'ihu bevel) iji gbochie ịgbaze n'oge ịgbado ọkụ ubi. A na-atụ aro nke a karịsịa maka ịgbado ọkụ n'oge ọrụ nrụgide dị elu.

Q19: Kedụ ahụmịhe gị n'inye paịpụ 316L nke ejiri ihe mkpuchi kpuchie dịka ọkọlọtọ EN nke Europe si dị?
A: Anyị na-enye EN 10216-2 (nkwado) mgbe niile site na iji mkpuchi 1.4404 (316L). Anyị nwere ike inye asambodo EN 10204 3.2 yana akaebe TÜV na nkwupụta PED. Ọtụtụ iwu agaala na Germany, Netherlands, France, na UK.

Q20: Ị nwere ike ịkekọrịta ntụaka maka nnukwu ọkpọkọ 316L nke nwere dayameta (API 5L X65 + 316L)?
A: Ee, anyị enyela paịpụ X65+316L (OD 610mm, mkpuchi 2.5mm) maka ọrụ ntinye CO₂ nke Middle Eastern (paịpụ 200 km). Enwere ike ịchọta ntụaka na NDA.