Okpu ọzọ? Ọnụ ego ezoro ezo nke ịhọrọ efere mkpuchi na-ezighi ezi
Ị hụla igwe mmiri mmiri arịa daa ka naanị afọ atọ gachara? Nrụgide nrụrụ nke Chloride chọtara ụzọ site na mkpuchi welded. Ụgwọ nrụzi ahụ gafere ọnụ ahịa nrụpụta mbụ. Atụpụtara titanium siri ike-ruo mgbe nzụta gosipụtara $2 mkpado ọnụ ahịa nde maka kọlụm 50-mita.
Nke a dịruru ná njọ na-ekwughachi. Ndị injinia na-akwụ ụgwọ na mpempe akwụkwọ mpịakọta dị ọnụ ala ma ọ bụ ihe mkpuchi weld dị mkpa. Nsonazụ ahụ? Ọnụego corrosion dị elu, nkwụsị na-enweghị atụmatụ, na efu mmepụta. Ihe kpatara ya abụghị ọnụ ahịa - ọ bụ teknụzụ njikọ na-ezighi ezi.
Titanium uwe efere ígwè maka mkpocha mmanụ ala na-edozi nke a. Njikọ mgbawa na-emepụta njikọ ọla na mgbaze efu. Enweghị intermetallics na-agbaji agbaji. Ike shiee nkekọ gafere 140 MPa. Nkwado nchara na-enye nguzosi ike n'ezi ihe na 60% obere arọ karịa titanium siri ike. Mana ịchọrọ nkọwapụta ziri ezi, usoro mmepụta nke ọma, na onye na-ebubata ihe ruru eru.
Akụkọ a na-enye data. Enweghị fluff. Nke a bụ ihe ụkpụrụ, nsonaazụ ule, na ihe ngosi ahụmịhe ọrụ.
Ihe kpatara Titanium siri ike ji ada akụ na ụba. Ihe kpatara Weld overlay ji ada na teknụzụ.
Nhọrọ n'etiti titanium siri ike, weld machie, na uwe efere abụghị agụmakwụkwọ. Ọ na-ekpebi ma ụgbọ mmiri gị ga-adịru 20 afọ ma ọ bụ 3.
| Ihe onwunwe / Sistemu | Nguzogide corrosion | Nkwenye nke nkwekọrịta | Oke oke | Ọnụ ego ikwu (kwa m² maka 25 mm ngụkọta ọkpụrụkpụ) |
|---|---|---|---|---|
| Titanium siri ike (Gr. 2) | Magburu onwe | N/A (otu) | Enweghị oke, ma arọ | 100% (ndabere) |
| Weld machie (Titanium na ígwè) | Ọ dị mma, ma dilution na interface | 15-30% iron dilution na-ebelata nguzogide corrosion | Ihe mkpuchi ≤ 5 mm ahụkarị; ihe ize ndụ nke dilution karịrị 8 mm | 55-65% |
| Efere igwe mkpuchi Titanium jikọtara mgbawa | Magburu onwe (oyi akwa titanium dị ọcha) | Ezi njikọ ọla; 0% dilution | Nkpuchi: 1.5-10 mm; Nkwado: ruo 100+ mm | 40-55% |
Data sitere na a 2023 Ọmụmụ ihe sitere na Institutelọ Ọrụ Teknụzụ Ihe (MTI) na-akwado: na simulated utoojoo ọrụ (5% H2S, 200Celsius C, pH 3.5), Weld machie gosiri localized corrosion na interface mgbe 500 awa. Ejikọtara mgbawa efere gosiri dịghị ọgụ mgbe 2,000 awa.
Arụmụka ọnụ ahịa kwụ ọtọ. Solid titanium Gr. 2 na-eri ihe dị ka $45-55 kwa kilogram. Nkwado ígwè na-efu $1-2 kwa kilogram. Ụgbọ mmiri chọrọ 25 mm ngụkọta ọkpụrụkpụ nke nwere titanium siri ike na-efu okpukpu abụọ karịa ihe mgbawa gbawara agbawa na ya 5 mm titanium + 20 mm SA516 Gr. 70. Ọdịiche dị arọ dịkwa oke egwu. Ụgbọ mmiri dị ọkụ na-ebelata ọnụ ahịa ntọala ma mee ka ọ dị mfe ibuli elu.
Efere ígwè kpuchiri titanium maka nnụcha mmanụ ala abụghị nkwekọrịta. Ọ bụ injinia kacha mma.
Usoro nkwekọrịta mgbawa: Ihe Mere O Ji Mepụta Njikọ Metallurgical Kachasi Ike
Njikọ mgbawa (a na-akpọkwa ịgbado ọkụ mgbawa) bụ usoro ịgbado ọkụ siri ike. Eja mgbawa a na-achịkwa na-ebuli cladder titanium n'ọsọ dị elu na nkwado nchara. Mmetụta ahụ na-emepụta jet plasma nke na-ehichapụ elu. Njikọ ọla na-enweghị agbaze.
Nke a dị oke egwu. N'adịghị ka weld overlay — ebe titanium na-agwakọta ígwè ma na-etolite TiFe intermetallics na-agbaji agbawa—njikọ mgbawa na-ahapụghị mpaghara dilution.. The interface dị ọcha, eriri wavy.
Isi paramita maka imezi ngwa:
- Kwachaa ike: ≥ 140 MPa kwa ASTM B898. Ekwenyere.
- Nnwale Ultrasonic: Nnabata kwa ọkwa ASTM A578 1. Ọ nweghị mpaghara agbasasịwo ibu karịa 75 mm n'akụkụ ọ bụla.
- Ọkpụrụkpụ mkpuchi: Na-emekarị 3 mm maka nkwado corrosion; ruo 10 mm maka gburugburu ebe obibi siri ike.
- Nchara na-akwado: SA516 Gr. 70, SA387 Gr. 11/22 (maka ọrụ utoojoo), ma ọ bụ ASTM A105 maka akwa akwa.
Gịnị mere ike nkekọ ji dị mkpa? Na reactor nwere ịgba ígwè ọkụ ọkụ ngwa ngwa (mmalite/mmechi), Mgbasawanye thermal dị iche n'etiti titanium (8.5 µm/m·°C) na ígwè (11.7 µm/m·°C) na-ebute nrụgide shiee na interface. Njikọ na-adịghị ike na-ada. Efere ndị jikọtara mgbawa na-adị ndụ ọtụtụ puku okirikiri.
Okwu ikpe: Otu nnukwu ụlọ nrụpụta dị na Middle East dochie reactors mkpuchi mkpuchi weld jiri efere ígwè gbawara agbawa gbawara agbawa n'ime ya. 2019. Mgbe 4 afọ nke ọrụ na elu-chloride crude, ọnweghị mwepu ma ọ bụ corrosion ahụrụ. Ụgbọ mmiri na-ekpuchi weld gara aga chọrọ nrụzi ma emechaa 18 ọnwa.
Ngwa dị egwu: Ebe Titanium Clad Steel Plate Excels na Nnụcha
Ọ bụghị ụgbọ mmiri ọ bụla chọrọ mkpuchi titanium. Ma mgbe usoro iyi nwere chlorides, H2S, ma ọ bụ organic acid na elu okpomọkụ, titanium bụ naanị nhọrọ dị ọnụ ahịa.
| Akụrụngwa | Ọnọdụ ọrụ | Ọnọdụ ọdịda na-enweghị mkpuchi Titanium | Titanium Clad Steel Solution |
|---|---|---|---|
| Desulfurization Reactors (RDS/VRDS) | 350-425Celsius C, 14 MPa, H₂S+H₂, chlorides si na-akpata | Sulfide nrụgide mgbawa (SSC) nke igwe anaghị agba nchara machie; polythionic acid ọgụ | Nke Gr. 2 cladding na-eguzogide SSC na polythionic acid; nkwado ígwè na-ejikwa nrụgide |
| Ogidi ndị na-ekesa (Igwe ikuku/Vacuum) | N'elu: 150Celsius C, HCl/H₂S; N'okpuru: 350Celsius C, naphthenic acid | Nnukwu corrosion HCl dị n'elu ngalaba; naphthenic acid corrosion n'etiti | Ti cladding n'elu 1/3 nke kọlụm; 317L ma ọ bụ duplex maka akụkụ dị ala maka nyocha ọnụ ahịa |
| Ndị na-agbanwe ọkụ (Nri/Nri) | Shell: 300Celsius C, usoro nke chloride; Tube: 200Celsius C, mmiri jụrụ oyi | Chloride nrụgide corrosion mgbawa nke austenitic igwe anaghị agba nchara | Titanium clad tube mpempe akwụkwọ na ọwa; siri ike Ti tubes; ígwè shei maka akụ na ụba |
| Ụgbọ mmiri Hydrocracker | 400Celsius C, 17 MPa, elu H₂, amonia, chlorides | Ammonium bisulfide corrosion; hydrogen-akpata cracking (HIC) na ígwè | Nke Gr. 12 mkpuchi (ọzọ na-eguzogide ọgwụ crevice corrosion); nkwado ígwè ruru eru maka NACE MR0175 |
Ngwa ọ bụla chọrọ nlezianya nkọwapụta ọkwa mkpuchi. Nke Gr. 2 dabara maka ọtụtụ gburugburu nnụcha. Nke Gr. 12 na-agbakwụnye 0.3% Mo na 0.8% Ọ bụ iji kwalite nguzogide corrosion crevice na ọrụ chloride okpomọkụ dị elu. ASTM B898 na-ekpuchi akara ule abụọ ahụ.
ASTM B898: Standardkpụrụ ị ga-amarịrị tupu ị nweta
ASTM B898 bụ nkọwapụta nchịkwa maka efere ígwè kpuchiri titanium maka nnụcha mmanụ ala. Ọ na-akọwa ihe niile ịchọrọ ịkọwapụta, tozuo, ma nyochaa ngwaahịa ahụ.
Isi ihe achọrọ n'okpuru B898:
- Nhazi nke nkwekọrịta: Klas 1 (ike shiee ≥ 140 MPa, njikọ zuru oke) ma ọ bụ klas 2 (ike shiee ≥ 105 MPa, anabatara maka ọrụ na-adịghị mkpa). Maka nnụcha, na-akọwa Klas mgbe niile 1.
- Nkwenye ọkpụrụkpụ nke mkpuchi: ± 0.5 mm maka nhọpụta ọkpụrụkpụ ruo 5 mm; ± 1.0 mm maka 5-10 mm.
- Nyocha Ultrasonic: Kwa ASTM A578 Ọkwa 1 ma ọ bụ Ọkwa 2. Ọkwa 1 bụ nke siri ike (enweghị onye ọ bụla na-ejikọtaghị ọnụ> 75 mm na akụkụ kachasị ogologo).
- Nnwale shear: Ihe nlele anọ kwa efere (njedebe ọ bụla na etiti). Opekempe nkezi nkpagbu ga-ezute oke klaasị.
- Bend ule: 180° ehulata na-enweghị cracking.
- Nyocha nyocha: Mkpuchi kwa ASTM B265 (Ị na-ewu 1, 2, 7, 12, wdg.); nkwado maka ASME SA-516, SA-387, wdg.
Anabatala efere efere na-enweghị akwụkwọ ASTM B898 akwadoro. Ọtụtụ ndị na-ebubata ihe na-edochi ihe ejikọtara mpịakọta (njikọ na-esighi ike, enweghị wavy interface) ma ọ bụ weld machie (nsogbu dilution). Ụkpụrụ na-egbochi nke ahụ.
Imepụta: Usoro ịgbado ọkụ nke na-eme ma ọ bụ na-agbaji ụgbọ mmiri ahụ
Ị nwere ike ịzụta efere nchara nke titanium kacha mma. Ọ bụrụ na welds adịghị mma, ụgbọ ahụ na-agbapụta n'ime ọnwa.
Titanium na-emeghachi omume na oxygen, nitrogen, na hydrogen karịrị 300 Celsius. Ekwesịrị iji gas inert kpuchie ebe weld (argon) ruo mgbe oyi dị n'okpuru 250 Celsius. Nke a bụ usoro pụtara maka ubi ma ọ bụ ụlọ ahịa ịgbado ọkụ nke efere ígwè kpuchiri titanium maka nnụcha mmanụ ala:
- Bọta akụkụ nchara na ihe nickel dabeere na alloy (eg., ERNiCrMo-3) iji mechie ígwè ahụ site na nchịkọta hydrogen n'oge ịgbado ọkụ titanium.
- Weld nchara n'azụ iji ndochi akwadoro (eg., E7018 maka SA516). Gbaa mbọ hụ na ntinye zuru oke. Back-gouge nchara n'akụkụ wepụ buttering tupu ikpeazụ ngafe.
- Wepu eriri nkwado (ọ bụrụ na ejiri ya). Hichaa elu titanium. Ejila wiil emetọ eme ihe egweri—jiri ngwaọrụ igwe anaghị agba nchara raara onwe ya nye.
- Weld ihe mkpuchi titanium iji ERTi-2 filler maka ọkwa 2, ma ọ bụ ERTi-12 maka ọkwa 12. Wepu ya na argon (n'akụkụ abụọ). Jiri ọta na-eso ụzọ chebe mpaghara weld dị ọkụ.
- Mee welds akara n'ọnụ ọnụ iji gbochie ntinye nke usoro mmiri n'etiti mkpuchi na nkwado.
- Nyochaa: Anya (agba anụnụ anụnụ na-egosi mmetọ-ajụ), agba penetrant (niile titanium weld elu), ultrasonic (maka disbonding n'okpuru weld HAZ), na ntapu ule (helium).
Dị oke egwu: Ejila ihe nchara welọ titanium ozugbo na carbon steel. TiFe intermetallic na-agbaji ma na-agbawa ozugbo. Jiri oyi akwa na-agba agba ma ọ bụ ihe mgbanwe nickel.
Onye nrụpụta ruru eru nke maara usoro ndị a dị ụkọ. Sisie ike na nkọwapụta Usoro ịgbado ọkụ (WPS) tozuru oke na ngalaba ASME IX yana ngwakọta ihe gị. Anabatala usoro ọ bụla.
Isi mmalite: Ajụjụ ise ị ga-ajụ tupu ị tinye iwu
Isi mmalite efere ígwè kpuchiri titanium maka nnụcha mmanụ ala site na ASTM mejupụtara panel mbupụ chọrọ nleba anya nke ọma. Ọ bụghị ndị niile na-ebupụ bụ nhata. Nke a bụ ndepụta nlele:
| Ajụjụ | Ihe Mere O Ji Dị Mkpa | Azịza anabatara |
|---|---|---|
| 1. Ị nwere asambodo ASTM B898 maka klaasị 1 efere? | Na-eme ka ike ejikọta na ụkpụrụ nnwale. | Ee, jiri asambodo nso nso a sitere na ụlọ nyocha enwetara ikike. |
| 2. Kedu ikike nyocha ultrasonic gị? | Ị chọrọ 100% nyochaa kwa A578 Ọkwa 1. | UT n'ime ụlọ nwere nyocha akpaaka yana ndekọ C-scan. |
| 3. Ị nwere ike ịnye ọkpụrụkpụ mkpuchi > 6 mm? | Ọrụ corrosion dị elu ma ọ bụ nke na-eguzogide abrasion chọrọ mkpuchi ka ukwuu. | Ee, ruo 10 mm Ti na 100 mm nkwado. |
| 4. Kedu akara akara nchara nkwado ị na-enye maka ọrụ utoojoo? | NACE MR0175/ISO 15156 nrubeisi bụ iwu maka H2S. | SA516 Gr. 70 na ule HIC; SA387 Gr. 11/22. |
| 5. Ị na-enye nkwado nnwale weld ma ọ bụ ọzụzụ ịgbado ọkụ ubi? | Ịmepụta ihe na-adịghị mma na-emebi efere kacha mma. | Ee, anyị na-enye nduzi ịgbado ọkụ na nkwado saịtị. |
Ị tụkwasịghị onye ọ bụla obi na-enweghị anya nke akwụkwọ ntuziaka ha dị mma, ule akụkọ, ma ọ dịkarịa ala otu ọrụ ntụaka na nnụcha. Ọnụ ego nke efere mkpuchi nke dara ada—mmepụta efu, rụkwaa, ihe omume nchekwa nwere ike - karịrị 10-15% ọnụahịa dị n'etiti onye na-ebubata ihe ruru eru na erughi eru..
Isi ala: Nchekwa ọnụ ahịa, Ogologo ndụ, na Nhọrọ nke Data chụpụrụ
Carbon ígwè na-efu $1-2 kwa n'arọ. Titanium na-efu $45-55 kwa kilogram. Reactor nwere tọn 50 na titanium siri ike ga-eri $2.5 nde naanị maka ihe. Otu reactor wuru na titanium kpuchiri efere ígwè (5 mm Ti + 20 mm ígwè) akwụ ụgwọ $1.1 nde—a 56% ego ego.
Mana ezigbo metrik bụ ngụkọta ọnụ ahịa nke onye nwe (TCO). Efere mkpuchi na-adịgide 20+ afọ na utoojoo ọrụ. Weld machie na-adị afọ 5-10 tupu corrosion emebere ya na mpaghara dilution nnọchi ike. Ntụnyere TCO doro anya:
- titanium siri ike: Ọnụ ego mbụ dị elu, obere mmezi, mana oke ibu na-achọ ntọala ntọala siri ike.
- Weld machie: Ọnụ ego mbụ dị obere, elu mmezi (nnyocha, rụkwaa nke ọ bụla 2-3 afọ), ihe ize ndụ nke ọdịda ọdachi.
- Titanium kpuchiri ihe mgbawa nchara: TCO kacha ala n'ihi ogologo ndụ, enweghị corrosion n'okpuru mkpuchi, na structural arụmọrụ.
Data ụlọ ọrụ sitere na a 2022 nyocha nke 12 Ụlọ ọrụ nnụcha nke United States gosiri na ụlọ ọrụ na-eji ígwè gbawara agbawa nke titanium kpuchiri maka akụkụ chloride ha dị elu enwetaghị mmechi na-enweghị atụmatụ corrosion na-enweghị atụmatụ na oge nyocha nke afọ 10.. Ndị na-eji ụzọ mkpuchi mkpuchi ndị ọzọ gbakọrọ 2.5 shutdowns kwa unit.
Usoro a na-eme ngwa ngwa. Ka refineries usoro esiwanye utoojoo crude (sọlfọ dị elu, Ọnụahịa kasị elu nke TAN), efere ígwè kpuchiri titanium maka nnụcha mmanụ ala na-aghọ nkọwa ndabara maka ihe nrụpụta ọhụrụ na nrụgharị. Teknụzụ egosila onwe ya maka 30+ afọ. O tozuru oke. A pụrụ ịdabere na ya. Ọ bụ ugbu a na-eri-asọmpi.
Mee nkọwapụta nke ọzọ gị mfe. Budata ntuziaka nhọrọ n'efu maka efere titanium na ọrụ nchacha. Ma ọ bụ ka mma-kpọọ otu injinia ngwa anyị. Anyị ga-enyere gị aka gbakọọ kpọmkwem TCO maka ụgbọ mmiri gị. Enweghị ọrịre ahịa. Naanị data.
Onye na-ebu ihe
Metal Plate 4U bụ onye na-eweta panel metal composite panel zuru ụwa ọnụ ntụkwasị obi & emeputa nwere ahụmahụ dị ukwuu n'inye igwe anaghị agba nchara dị oke elu, nickel alloy, ọla kọpa ígwè, na titanium ígwè mejupụtara efere. Ụlọ ọrụ ahụ na-ebupụ n'ọtụtụ mba, dị ka USA, Canada, Europe, UAE, South Africa, wdg. Dị ka onye na-eduga mgbawa bonded kpuchiri efere onye mmepụta, Metal Plate 4U na-achị ahịa. Ndị otu ọrụ ọkachamara anyị na-enye ngwọta zuru oke iji nyere aka melite arụmọrụ nke ụlọ ọrụ dị iche iche, dị ka arịa nrụgide, ndị na-ekpo ọkụ, ụgbọ mmiri, na nhazi kemịkal, mepụta uru, na mfe ịnagide nsogbu dị iche iche. Ọ bụrụ na ị na-achọ ogwe ihe mejupụtara igwe ma ọ bụ efere bimetal, biko nweere onwe gị ịkpọtụrụ anyị!