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First worldwide family litigation filedlitigationCriticalhttps://patents.darts-ip.com/?family=41396870&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ME02471(B)"Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Mitsubishi Hitachi Power Systems Europe GmbhfiledCriticalMitsubishi Hitachi Power Systems Europe Gmbh
Publication of ME02471BpublicationCriticalpatent/ME02471B/en
F22B37/00—Component parts or details of steam boilers
F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
F22B37/04—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler and characterised by material, e.g. use of special steel alloy
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Engineering & Computer Science
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Physics & Mathematics
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Thermal Sciences
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Mechanical Engineering
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General Engineering & Computer Science
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Metallurgy
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Separation Using Semi-Permeable Membranes
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Heat Treatment Of Articles
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Vaporization, Distillation, Condensation, Sublimation, And Cold Traps
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Devices For Medical Bathing And Washing
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Physical Or Chemical Processes And Apparatus
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Filling Or Discharging Of Gas Storage Vessels
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Butt Welding And Welding Of Specific Article
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Claims (15)
1.Membranski zid (l) jednog velikog proizvođača pare obuhvata veći broj spojeva cev most-cev i/ili spojeva rebrastih cevi, kod koga su dotične cevi spoja cev-most-cev ili rebraste cevi spoja rebrastih cevi izvedene od jednog čeličnog materijala sa feritno - bainitnom, martenzitnom ili austenitnom strukturom ili legurom na bazi nikla i dotične cevi spojene sa mostom u spoju cev-most-cev ili spoj rebrastih cevi je izveden ceo ili u kombinaciji sa čeličnim materijalom sa feritno- bainitnom, martenzitnom ili austenitnom strukturom ili legurom na bazi nikla, pri čemu membranski zid (l) ima delimične oblasti, u kojima su različiti čelični materijali i/ili različite legure na bazi nikla upotrebljeni kao materijal mosta ili cevi ili kao materijal rebrastih cevi jedna do druge granično i međusobno spojene, i pri čemu su jedna do druge granične i međusobno spojene oblasti gde su izvedeni mostovi ili cevi ili rebraste cevi od različitog čeličnog materijala pomoću postupka zavarivanja međusobno spojene, naznačen time, da membranski zid (l) ima jednu do druge granične oblasti sa spojevima cev-most-cev ili spojevima rebrastih cevi od različitog čeličnog materijala i ima jednu do druge granične oblasti sa spojevima cev-most-cev ili spojevima rebrastih cevi od istog čeličnog materijala, naročito sa istom metalografskom strukturom, i da različiti materijali mosta ili cevi ili rebraste cevi imaju jedan sličan koeficijent toplotnog širenja, sa maksimalnim odstupanjem jedan od drugoga± 20%.1. The membrane wall (l) of a large steam producer includes a large number of tube-bridge-tube connections and/or finned tube connections, where the tubes of the tube-bridge-tube connection or the finned tubes of the finned tube connection are made of one steel material with ferrite - with a bainite, martensitic or austenitic structure or nickel-based alloy and the pipe in question connected to the bridge in the pipe-bridge-pipe connection or the connection of ribbed pipes is made entirely or in combination with steel material with a ferrite-bainite, martensitic or austenite structure or alloy on nickel-based, wherein the membrane wall (l) has partial areas, in which different steel materials and/or different nickel-based alloys are used as bridge or tube material or as finned tube material one to the other bordering and interconnected, and wherein are one-to-one bordering and interconnected areas where bridges or pipes or ribbed pipes of different steel material are connected to each other by means of a welding process, indicated by the fact that the membrane wall (l) has one-to-another bordering areas with pipe-bridge-pipe connections or finned pipe joints of different steel material and has one to the other boundary areas with pipe-bridge-pipe joints or finned pipe joints of the same steel material, especially with the same metallographic structure, and that the different materials of the bridge or pipe or finned pipe have a similar coefficient of thermal expansion, with a maximum deviation from each other ± 20%.2.Membranski zid prema Zahtevu l , naznačen time, da različiti materijali mosta ili cevi ili rebraste cevi imaju različitu metalografsku strukturu.2. Membrane wall according to Claim 1, indicated by the fact that different materials of the bridge or pipe or ribbed pipe have a different metallographic structure.3.Membranski zid prema Zahtevu l ili 2, naznačen time, da se otsečak mosta jednog spoja cev-most-cev ili spoja rebrastih cevi pruža samo preko delimične oblasti regularne širine mosta..3. Membrane wall according to Claim 1 or 2, characterized by the fact that the bridge section of one pipe-bridge-pipe connection or rib pipe connection extends only over a partial area of the regular width of the bridge.4.Membranski zid prema nekom od predhodnih Zahteva, naznačen time, da membranski zid (l) ima u bitnoj oblasti, naročito u izlaznoj delimičnoj oblast (2) velikog proizvođača pare oblast sastavljenu od spojeva cev-most-cev ili spojeva rebrastih cevi, kod koje su most i cev ili rebrasta cev izvedeni od čeličnog materijala sa feritno - bainitnom strukturom, naročito od čelika VM12 ili T92 ili 7CrMoVTiBl O - l O. ili da membranski zid (l) ima u bitnoj oblasti, naročito u prvoj delimičnoj oblasti (3) isparivača velikog proizvođača pare iznad izlazne delimične oblasti (2) oblast sastavljenu od spojeva cev-most-cev ili spojeva rebrastih cevi, u kojoj su most i cev ili rebrasta cev izvedeni od martenzitnog čeličnog materijala, naročito od čelika VM12 ili T92 ili 7CrMoVTiB10 -10.4. Membrane wall according to one of the previous Claims, characterized by the fact that the membrane wall (l) has in a significant area, especially in the exit partial area (2) of a large steam producer, an area composed of pipe-bridge-pipe joints or ribbed pipe joints, at in which the bridge and tube or ribbed tube are made of steel material with a ferrite-bainite structure, especially of steel VM12 or T92 or 7CrMoVTiBl O - l O. or that the membrane wall (l) has in a significant area, especially in the first partial area (3 ) of the evaporator of a large vapor producer above the outlet partial area (2) an area composed of tube-bridge-tube joints or finned tube joints, in which the bridge and tube or finned tube are made of martensitic steel material, especially steel VM12 or T92 or 7CrMoVTiB10 - 10.5.Membranski zid prema nekom od predhodnih Zahteva, naznačen time, da membranski zid (1), naročito u prvoj delimičnoj oblasti (3) isparivača ima, makar u oblasti spoja cev most-cev, najmanje jednu cev (9) sa martenzitnom strukturom, naročito od čelika VM12 ili T92, sa zavarenim mostom (15, 16) ili rebrastom cevi izvedenim od legure na bazi nikla, prvenstveno sa austenitnom strukturom, naročito od čelika A617 ili HR6W ili da membranski zid (1), naročito u prvoj delimičnoj oblasti (3) isparivača ima, u najmanju ruku u oblasti spoja cev-most-cev, najmanje jedan most (10), sa martenzitnom strukturom, naročito od čelika VM12 ili T92, sa zavarenim mostom (15, 16) ili rebrastom cevi izvedenim od legure na bazi nikla, prvenstveno sa austenitnom strukturom, naročito od čelika A617 ili HR6W5. Membrane wall according to one of the previous Claims, characterized by the fact that the membrane wall (1), especially in the first partial area (3) of the evaporator, has at least one pipe (9) with a martensitic structure, at least in the area of the bridge pipe-pipe connection, especially from steel VM12 or T92, with a welded bridge (15, 16) or a ribbed tube made of a nickel-based alloy, primarily with an austenitic structure, especially from steel A617 or HR6W or that a diaphragm wall (1), especially in the first partial area ( 3) the evaporator has, at least in the area of the pipe-bridge-pipe connection, at least one bridge (10), with a martensitic structure, especially made of VM12 or T92 steel, with a welded bridge (15, 16) or a ribbed pipe made of an alloy on nickel-based, primarily with an austenitic structure, especially from steel A617 or HR6W6. Membranski zid prema Zahtevu 5, naznačen time, da je sastavljen od delimičnih segmenata 8, 8' membranskog zida, koji imaju izvedenu oblast sa zavarenim mostom (15, 16) ili sa rebrastom cevi ili sa cevi od legure na bazi nikla, na podužnoj strani od čeličnog materijala sa martenzitnom strukturom, prvenstveno od čelika Vl2 ili T92.6. Membrane wall according to Claim 5, indicated by the fact that it is composed of partial segments 8, 8' of the membrane wall, which have a derived area with a welded bridge (15, 16) or with a ribbed tube or with a tube made of a nickel-based alloy, on longitudinal side of steel material with martensitic structure, primarily steel Vl2 or T92.7.Membranski zid prema nekom od predhodnih Zahteva, naznačen time, da membranski zid (1), naročito u prvoj delimičnoj oblasti (3) isparivača, ima najmanje jednu oblast koja se sastoji od spojeva cev-most-cev ili spojeve rebrastih cevi izvedenih od materijala sa martenzitnom strukturom, naročito od čelika VM12 ili T92, ima zavareni otsečak (13) cevi ili otsečak rebraste cevi i/ili otsečak (14) mosta od legure na bazi nikla, prvenstveno sa austenitnom strukturom, naročito odA617 ili HR6W pri čemu prvenstveno oblast sa zavarenim otsečkom (13) cevi ili sa zavarenim otsečkom rebraste cevi i/ili zavarenim otsečkom (14) mosta, koji su duž gornje- i/ili donje strane (11, 12) delimičnih segmenata (8, 8') membranskog zida izvedeni od materijala sa magnezitnom strukturom, naročito od čelika VM12 ili T92.7. Membrane wall according to one of the preceding Claims, characterized by the fact that the membrane wall (1), especially in the first partial area (3) of the evaporator, has at least one area consisting of tube-bridge-tube joints or rib tube joints derived from material with a martensitic structure, especially from steel VM12 or T92, has a welded section (13) of a tube or a section of a ribbed tube and/or a section (14) of a bridge made of a nickel-based alloy, primarily with an austenitic structure, especially from A617 or HR6W, where primarily the area with a welded section (13) of the pipe or with a welded section of the ribbed pipe and/or a welded section (14) of the bridge, which along the upper and/or lower side (11, 12) of the partial segments (8, 8') of the membrane wall are derived from materials with magnesite structure, especially steel VM12 or T92.8.Membranski zid prema nekom Zahteva 5 do 7, naznačen time, da se u suštini postojeći delimični segmenti (8, 8') sastoje od čeličnog materijala sa martenzitnom strukturom, koji duž svoje gornje - i donje strane (11, 12) imaju zavaren otsečak (13) cevi i/ili otsečak (14) mosta ili otsečak rebraste cevi i duž svoje podužne strane zavarenu oblast (15, 16) ili oblast rebraste cevi ili materijal od legure nikla pri čemu prvenstveno ima od legura na bazi nikla sastavljenu cev i/ili ima jedan most izveden od legure na bazi nikla izvedene otsečke ili oblasti membranskog zida (l) ili delimični segment (8, 8'), koji obuhvataju više cevi i/ili mostova.8. Membrane wall according to one of Claims 5 to 7, characterized by the fact that essentially the existing partial segments (8, 8') consist of a steel material with a martensitic structure, which along their upper and lower sides (11, 12) have a welded pipe section (13) and/or bridge section (14) or finned pipe section and along its longitudinal side a welded area (15, 16) or a finned pipe area or a material made of a nickel alloy, wherein it primarily has a pipe composed of a nickel-based alloy and /or has one bridge derived from a nickel-based alloy derived section or area of the membrane wall (l) or a partial segment (8, 8'), which includes several tubes and/or bridges.9. Membranski zid prema nekom od predhodnih Zahteva, naznačen time, da membranski zid (l) u bitnoj oblasti, naročito u drugoj delimičnoj oblasti (4) isparivača velikih prozizvođača pare izvedene spojeve cev-most-cev ili spojeve rebrastih cevi, kod kojih su most i cev ili rebraste cevi izrađreni od legura na bazi nikla sa austenitnom strukturom, naročito od čelika A617 ili HR6W, ili membranski zid (1), naročio u prelaznom delu između prve delimične oblasti (3) isparivača i druge delimične oblasti (4) isparivača, najmanje jednu oblast sastavljenu od delimičnih segmenata (8, 8') membranskog zida izvedeni od čeličnog materijala sa martenzitnom strukturom, naročito od čelika VM12 ili T92, sa zavarenom oblašću ili otsečkom izvedenih od legura na bazi nikla, prvenstveno sa austenitnom strukturom, prvenstveno od čelika A617 ili HR6W, ili membranski zid (l) u bitnoj oblasti, naročito u prvoj delimičnoj oblasti (5) velikog proizvođača pare sa vertikalno raspoređenim cevima, koja se sastoji od spojeva cev most-cev ili spojeva rebrastih cevi, kod kojih su cevi ili most ili rebrasta cev izvedeni od legura na bazi nikla, prvenstveno sa austenitnom strukturom, naročito A617 ili HR6W, ili membranski zid (l) u bitnoj oblasti, naročito u drugoj delimičnoj oblasti (6) velikog proizvođača pare sa vertikalno raspoređenim cevima, naročito u oblasti pregrejača pare, obuhvata najmanje jednu oblast koja je sastavljena od spojeva cev-most-cev ili od spojeva rebrastih cevi, koja obuhvata najmanje jednu cev izvedenu od legura na bazi nikla, naročito čelik A617, sa zavarenim mostom koji je izvedenu pri tome od različite legure na bazi nikla, naročito od čelika HR6W, pri čemu oba čelična materijala imaju austenitnu strukturu, ili membranski zid (l)u bitnoj oblasti, naročito u trećoj delimičnoj oblasti (7) velikog proizvođača pare, ima najmanje jednu oblast koja je sastavljena od spojeva cev-most-cev ili od spojeva rebrastih cevi, kod koje su most i granična cev ili jedna do druge granične rebraste cevi izvedeni od čeličnog materijala sa feritno - bainitnom strukturom, naročito od čelika 7CrMoVTiB10-9. Membrane wall according to one of the preceding Claims, characterized by the fact that the membrane wall (l) in the essential area, especially in the second partial area (4) of the evaporator of large steam producers, pipe-bridge-pipe connections or finned pipe connections, where bridge and tube or finned tubes made of nickel-based alloys with an austenitic structure, especially of steel A617 or HR6W, or a membrane wall (1), especially in the transition part between the first partial area (3) of the evaporator and the second partial area (4) of the evaporator , at least one area composed of partial segments (8, 8') of the membrane wall derived from a steel material with a martensitic structure, in particular from steel VM12 or T92, with a welded area or section derived from nickel-based alloys, primarily with an austenitic structure, primarily from of steel A617 or HR6W, or a membrane wall (l) in a significant area, especially in the first partial area (5) of a large steam producer with vertically arranged pipes, which consists of pipe-bridge-pipe joints or finned pipe joints, where the pipes or bridge or ribbed tube made of nickel-based alloys, primarily with an austenitic structure, especially A617 or HR6W, or a membrane wall (l) in an essential area, especially in another partial area (6) of a large steam producer with vertically arranged tubes, especially in the area steam superheater, includes at least one area composed of tube-bridge-tube joints or finned tube joints, which includes at least one tube made of nickel-based alloys, in particular steel A617, with a welded bridge made of a different alloy nickel-based, especially HR6W steel, where both steel materials have an austenitic structure, or the membrane wall (l) in an essential area, especially in the third partial area (7) of a large steam producer, has at least one area that is composed of pipe joints - bridge-tube or from the joints of ribbed tubes, where the bridge and the boundary tube or one to the other boundary ribbed tubes are made of steel material with a ferrite - bainite structure, especially from steel 7CrMoVTiB10-10. delimičnoj oblasti (2) i/ili u prvoj delimičnoj oblasti (3) isparivača i/ili u drugoj delimičnoj oblasti (4) isparivača i/ili u prvoj delimičnoj oblasti (5) sa vertikalno raspoređenim cevima i/ili u drugoj delimičnoj oblasti (6) sa vertikalno raspoređenim cevima i/ili u trećoj delimičnoj oblasti (7) velikog proizvođača pare, izvedeni spojevi cev-most-cev ili spojevi rebrastih cevi kod kojih su međusobno zavareni most i na njemu granična cev ili dve jedna do druge granične oblasti mosta spoja cev-most--cev ili dve jedna do druge granične rebraste cevi spoja rebrastih cevi, pri čemu su ovi elementi izvedeni od različitog čeličnog materijala i/ili od različitih legura na bazi nikla i/ili od materijala sa različitom metalografskom strukturom.10. partial area (2) and/or in the first partial area (3) of the evaporator and/or in the second partial area (4) of the evaporator and/or in the first partial area (5) with vertically arranged pipes and/or in the second partial area (6) with vertically distributed pipes and/or in the third partial area (7) of a large steam producer, derived pipe-bridge-pipe joints or rib pipe joints where a bridge is welded to each other and on it a border pipe or two border areas one to another pipe-bridge connection bridge--pipe or two side-to-side finned pipe joint finned pipe connection, wherein these elements are made of different steel material and/or of different nickel-based alloys and/or of material with different metallographic structure.11.Membranski zid prema nekom od predhodnih Zahteva, naznačen time, da su u izlaznoj delimičnoj oblasti (2) i/ili u prvoj delimičnoj oblasti (3) isparivača i/ili u drugoj delimičnoj oblasti (4) isparivača i/ili u prvoj delimičnoj oblasti (5) sa vertikalno raspoređenim cevima i/ili u drugoj delimičnoj oblasti (6) sa vertikalno raspoređenim cevima i/ili u trećoj delimičnoj oblasti (7) velikog proizvođača pare, izvedeni spojevi cev-most-cev ili spojevi rebrastih cevi kod kojih su međusobno zavareni most i na njemu granična cev ili dve jedna do druge granične oblasti mosta spoja cev-most--cev ili dve jedna do druge granične rebraste cevi spoja rebrastih cevi, pri čemu su ovi elementi izvedeni od istog čeličnog materijala i/ili od istih legura na bazi nikla i/ili od materijala sa istom metalografskom strukturom.11. Membrane wall according to one of the preceding Claims, characterized by the fact that in the outlet partial area (2) and/or in the first partial area (3) of the evaporator and/or in the second partial area (4) of the evaporator and/or in the first partial area area (5) with vertically distributed pipes and/or in the second partial area (6) with vertically distributed pipes and/or in the third partial area (7) of a large steam producer, pipe-bridge-pipe connections or finned pipe connections where mutually welded bridge and on it a border pipe or two border areas of the bridge connecting pipe-bridge--pipe or two bordering ribbed pipes connecting ribbed pipes, where these elements are made of the same steel material and/or of the same nickel-based alloy and/or material with the same metallographic structure.12.Membranski zid prema nekom od predhodnih Zahteva, naznačen time, da je u najmanje jednoj delimičnoj oblasti (3, 4) isparivača i najmanje jednoj delimičnoj oblasti (5, 6) sa vertikalno raspoređenim cevima, izvedeni spojevi cev-most-cev ili spojevi rebrastih cevi, kod kojih su međusobno zavareni most i na njemu granična cev ili dve jedna do druge granične oblasti mosta spoja cev-most--cev ili dve jedna do druge granične rebraste cevi spoja rebrastih cevi, pri čemu su ovi elementi izvedeni naime od različitog čeličnog materijala i/ili od različitih legura na bazi nikla, ali su sa istom ili sa slične vrste metalografskom strukturom.12. Membrane wall according to one of the preceding Claims, characterized by the fact that in at least one partial area (3, 4) of the evaporator and at least one partial area (5, 6) with vertically arranged pipes, pipe-bridge-pipe connections or connections are made ribbed pipes, where a bridge is welded to each other and on it a boundary pipe or two one-to-another boundary areas of the bridge connecting pipe-bridge--pipe or two one-to-another bordering ribbed pipes of a ribbed pipe connection, whereby these elements are derived namely from different of steel material and/or of different nickel-based alloys, but with the same or a similar type of metallographic structure.13.Membranski zid prema nekom od predhodnih Zahteva, naznačen time, da su u prelaznom delu od izlazne delimične oblasti (2) do prve delimične oblasti (3) isparivača i/ili u prelaznom delu od prve delimične oblasti (3) isparivača do druge delimične oblasti (4) isparivača i/ili u prelaznom delu od druge delimične oblasti (4) isparivača do prve delimične oblasti (5) sa vertikalno raspoređenim cevima i/ili u prelaznom delu od prve delimične oblasti (5) sa vertikalno raspoređenim cevima do druge delimične oblasti (6) sa vertikalno raspoređenim cevima i/ili u prelaznom delu od druge delimične oblasti (6) sa vertikalno raspoređenim cevima do treće delimične oblasti (7) velikog proizvođača pare, izvedeni spojevi cev-most-cev ili spojevi rebrastih cevi, kod kojih su međusobno zavareni most i/ili cev jedne delimične oblasti (2 - 6) sa jednim graničnim mostom i/ili cevi jedne druge delimične oblasti (3 - 7), pri čemu su ovi elementi izvedeni od različitog čeličnog materijala i/ili od različitih legura na bazi nikla i/ili od materijala sa različitom metalografskom strukturom. ;13. Membrane wall according to one of the previous Claims, indicated by the fact that they are in the transitional part from the outlet partial area (2) to the first partial area (3) of the evaporator and/or in the transition part from the first partial area (3) of the evaporator to the second partial area area (4) of the evaporator and/or in the transitional part from the second partial area (4) of the evaporator to the first partial area (5) with vertically arranged pipes and/or in the transitional part from the first partial area (5) with vertically arranged pipes to the second partial area area (6) with vertically distributed pipes and/or in the transitional part from the second partial area (6) with vertically distributed pipes to the third partial area (7) of a large steam producer, derived pipe-bridge-pipe connections or finned pipe connections, where are a mutually welded bridge and/or pipe of one partial area (2 - 6) with one boundary bridge and/or pipes of another partial area (3 - 7), whereby these elements are made of different steel material and/or of different alloys nickel-based and/or materials with a different metallographic structure. ;14.Membranski zid prema nekom od predhodnih Zahteva, naznačen time, da su u prelaznom delu od druge delimične oblasti (4) isparivača do prve delimične oblasti (5) sa vertikalno raspoređenim cevima i/ili u prelaznom delu od prve delimične oblasti (5) sa vertikalno raspoređenim cevima do druge delimične oblasti (6) sa vertikalno raspoređenim cevima, izvedeni spojevi cev-most-cev ili spojevi rebrastih cevi, kod kojih su međusobno zavareni most i/ili ceva jedne delimične oblasti (4, 5) sa jednim graničnim mostom i/ili cevi jedne druge delimične oblasti (5, 6), pri čemu su ovi elementi izvedeni od različitog čeličnog materijala i/ili od različitih legura na bazi nikla i/ili od materijala sa različitom metalografskom strukturom.14. Membrane wall according to one of the previous Claims, indicated by the fact that they are in the transitional part from the second partial area (4) of the evaporator to the first partial area (5) with vertically arranged pipes and/or in the transitional part from the first partial area (5) with vertically distributed pipes to another partial area (6) with vertically distributed pipes, pipe-bridge-pipe joints or ribbed pipe joints, where the bridge and/or pipe of one partial area (4, 5) with one boundary bridge are welded to each other and/or pipes of another partial area (5, 6), whereby these elements are made of different steel material and/or of different nickel-based alloys and/or of material with a different metallographic structure.15.Membranski zid prema nekom od predhodnih Zahteva, naznačen time, da je u najmanje jednom prelaznom delu između delimične oblasti (4) isparivača ili delimične oblasti (5) sa vertikalno raspoređenim cevima i jedne delimične oblasti (5, 6) sa vertikalno raspoređenim cevima, izvedeni spojevi cev-most-cev ili spojevi rebrastih cevi, kod kojih su međusobno zavareni most i/ili cevajedne delimične oblasti (4, 5) sa jednim graničnim mostom i/ili cevi jedne druge delimične oblasti (5, 6), pri čemu su ovi elementi izvedeni od različitog čeličnog materijala i/ili od različitih legura na bazi nikla ali su sa istom strukturom ili su sa strukturom slične vrste.15. Membrane wall according to one of the preceding Claims, characterized by the fact that in at least one transitional part between partial area (4) of the evaporator or partial area (5) with vertically arranged pipes and one partial area (5, 6) with vertically arranged pipes , pipe-bridge-pipe joints or ribbed pipe joints, in which the bridge and/or pipes of one partial area (4, 5) are welded together with one boundary bridge and/or pipes of another partial area (5, 6), whereby are these elements derived from different steel material and/or from different nickel-based alloys but with the same structure or with a structure of a similar type.
MEP-2016-179A2008-07-022009-04-21Membrane wall of a large-scale steam generator
ME02471B
(en)
Pipe wall production process for steam generator comprises producing pipe wall register, heat-treating weld seams, connecting up register and joining planes