EP2297517A2 - Membrane wall of a large-scale steam generator - Google Patents
Membrane wall of a large-scale steam generatorInfo
- Publication number
- EP2297517A2 EP2297517A2 EP09772046A EP09772046A EP2297517A2 EP 2297517 A2 EP2297517 A2 EP 2297517A2 EP 09772046 A EP09772046 A EP 09772046A EP 09772046 A EP09772046 A EP 09772046A EP 2297517 A2 EP2297517 A2 EP 2297517A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pipe
- web
- membrane wall
- fin
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B21/00—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- 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
Definitions
- the invention is directed to a diaphragm wall of a large steam generator comprising a plurality of pipe-web-pipe connections and / or fin pipe connections, wherein the respective tubes of the pipe-web-pipe connection or the fin pipes of the fin pipe connection of a steel material with ferritic-bainitic , martensitic or austenitic microstructure or a nickel-based alloy, and the pipe connecting web of the pipe-web-pipe connection or the fin joint wholly or in combination of a steel material with ferritic-bainitic, martensitic or austenitic microstructure or a nickel-based alloy.
- Suitable materials for the manufacture of membrane walls are considered to be nickel-base alloys and 9-12 wt% chromium-containing martensite steels.
- nickel-base alloys are significantly more expensive than the austenitic materials used hitherto in power plant construction and are priced by 5 to 8 times more expensive than the usual austenitic materials.
- the cost of nickel-based power plant components is higher than that of austenitic materials.
- Alternate chromium-containing (9-12 wt.%) Martensitic materials must necessarily undergo heat treatment when creating a membrane wall due to the welds associated therewith, causing problems in the fabrication and assembly of membrane walls of these materials.
- the existing of such martensitic material components must be preheated and after each welding process each membrane wall element taken as a whole or the heat affected zone of the weld to reduce the hardness at about 700 0 C must be annealed.
- these martensitic steel materials with low chromium content increased oxide growth on the inside of the pipe, which may have increased pipe wall temperatures and possibly blockages of the pipes by chipped oxide during operation of the power plant result.
- the membrane wall described at the outset is characterized in that the membrane wall at least partially has regions in which different steel materials and / or nickel-base alloys are connected to one another as a respective web or tube material or as a respective fin tube material.
- the invention is based on the idea that not all
- Areas of a membrane wall must be completely formed with material that holds the respective steam parameters.
- material that holds the respective steam parameters For example, it is possible to make the tubes of the respective membrane wall regions or sections of a nickel-based alloy material, but to connect the adjacent tubes with a web of less expensive austenitic or possibly also of martensitic material. In particular, however, this makes it possible, in some cases more cost-effective than the "austenitic" nickel-based alloys martensitic
- a corresponding web or a corresponding tube of an adjacent membrane wall segment segment is then welded to the site, which also consist of a nickel-based alloy with austenitic microstructure and at its opposite end, in turn, a tube or a web is welded, which optionally also from consist of a nickel-based alloy material with austenitic structure or in turn of a steel material with a martensitic microstructure.
- the weld seam joining the contiguous webs or tubes of the two membrane wall part segments then need not be heat treated. Due to the pipes or webs with martensitic microstructure each upstream web or tube made of nickel-based alloy remains the pipe or
- Diaphragm wall occur during operation of the steam generator.
- the web and at least one adjoining tube are each formed of a different material with mutually different microstructure structure.
- the invention therefore provides in a further embodiment that the have different web or pipe materials or fins materials each having a different microstructure.
- the invention is characterized in an embodiment further characterized in that extends a web portion of a pipe-web-pipe connection or a fin pipe connection only over a portion of the web control width.
- this can be the combination of a tube with martensitic microstructure welded thereto web area of nickel-based alloy material with austenitic microstructure by welding the latter to the pipe in the assembly workshop, the web then only has half the width of the later realized on the steam generator web.
- the web rule width is understood to mean the total web width connecting two pipes each at the finished membrane wall of the large steam generator.
- the membrane wall has adjacent areas with pipe-web-pipe connections or fin pipe connections made of different materials and adjoining areas with pipe-web-pipe connections or fin pipe joints of the same, in particular structure-like, materials.
- Membrane wall further characterized in that the membrane wall partially, in particular in the discharge section of the
- Flossenrohr für Flossenrohr für stowage exists in which web and tube or fin tube each consist of a steel material with ferritic-bainitic structure, in particular 7CrMoVTiBlO-IO or T24 exist.
- the designations used above and also the designations below for steel grades or steel materials correspond either to the common German material designations or the nomenclature according to ASTM (American Society for Testing Materials), unless stated otherwise.
- the membrane wall partially, especially in a first evaporator section of the large steam generator above the discharge section (in which the respective pipe withstands a Radiogrenztemperatur in a range of about 550 0 C to about equal to 600 ° C) consists of pipe-web-pipe connections or fin pipe connections, in which web and pipe or fin tube each consist of a martensitic steel material, in particular of VM12 or T92 or X10CrWMoVNb9-2 exist.
- the membrane wall of individual membrane wall segments or membrane wall part segments is composed, which consist in their very substantial part of pipe-web-pipe connections or fin pipe connections, the are made of a steel material with martensitic structure, in particular of VM12 or T92.
- these membrane wall part segments can be provided in the workshop at their top and / or bottom and / or at each of their longitudinal sides with a land area or a pipe and / or or pipe and web pieces of austenitic material, in particular of a nickel-based alloy material.
- the invention therefore further provides that the membrane wall, in particular in the first evaporator section, at least partially tube-web-pipe connections, each having at least one tube of martensitic structure, in particular of VM12 or T92, with welded web or welded fin of a Nickel-based alloy, preferably with an austenitic microstructure, in particular A617 or HR6W.
- the bridge is out. a material having an austenitic microstructure and the adjoining tube made of a material having a martensitic microstructure. Rather, it is also possible that on the outside a tube austenitic microstructure forms the conclusion to which a web was welded with martensitic microstructure in the workshop.
- the invention therefore further provides that the membrane wall, in particular in the first evaporator section, at least Pipe-web-pipe connections comprises, each comprising a web of martensitic structure, in particular of VM12 or T92, with welded tube of a nickel-based alloy, preferably austenitic microstructure, in particular A617 or HR6W.
- the areas of welded webs or fins or tubes of nickel-base alloy are formed on the longitudinal sides of a membrane wall part segment consisting essentially of steel material with a martensitic structure, in particular VM12 or T92.
- the invention provides for the butting in the vertical direction of superimposed membrane wall segments, that the membrane wall, in particular in the first evaporator section, at least partially from pipe-web-pipe connections or
- Flossenrohritatien consists, in which pipe-web pipe sections or fin pipe sections of a material with a martensitic structure, in particular VM12 or T92, pipe sections or fin pipe sections and / or web sections of a nickel-based alloy, preferably austenitic microstructure, in particular A617 or HR6W, are welded.
- Membrane walls can be constructed and manufactured in a particularly cost-effective manner if this is made up of individual membrane wall part segments which are produced in the workshop and then welded together at the construction site.
- the invention is further characterized by a substantially consisting of a steel material with a martensitic microstructure membrane wall part segment having welded along its top and bottom tube sections and / or web sections or fin tube sections and along its longitudinal sides welded bar or fin areas or tubes made of nickel-based alloy material.
- Such an advantageous embodiment may also have more than one element of nickel-based alloy material, in particular on the longitudinal sides of a membrane wall part segment.
- the invention is therefore further characterized in that the nickel-based alloy material existing pipe and / or consisting of nickel-based alloy material web portions or regions of the membrane wall or the membrane wall part segments each comprise a plurality of tubes and / or webs.
- the membrane wall partially, in particular in a second evaporator section of the large steam generator (in which the respective pipe a Radio-grenztemperatur in a range of about equal to 600 0 C to about equal to 620 0 C withstand) from tube -Steg-pipe connections or fin pipe connections exists which web and tube or fin tube each consist of a nickel-based alloy with an austenitic microstructure, in particular A617 or HR6W.
- HR6W refers to a steel coming from Japan, which is designated there with this Japanese nomenclature.
- the membrane wall in particular in the transition region from the first evaporator subregion to the second evaporator subregion, at least partially from a membrane wall part segment of a steel material with a martensitic microstructure, in particular of VM12 or T92 welded portion or portion of nickel-based alloy, preferably austenitic microstructure, in particular A617 or HR6W exists.
- the invention provides that the membrane wall in regions, in particular in a first portion of the large steam generator (with Vertikalberohrung in which the respective tube of a plant material limit temperature in the range of about equal to 62O 0 C to about equal to 600 0 C stands) consists of pipe-web-pipe connections or fin pipe connections, in which web and pipe or fin tube each from a
- Nickel-based alloy preferably austenitic microstructure, in particular A617 or HR6W exist.
- the invention provides for in the membrane wall in turn vertically arranged above further areas that the Membrane wall partially, in particular in a second portion of the large steam generator with vertical bore, preferably in the superheater (in which the respective pipe withstands a Radiomaterialgrenztemperatur in the range of about equal to 600 0 C) at least partially consists of pipe-web-pipe connections or fin pipe connections, each comprising at least one tube made of a nickel-based alloy, in particular A617, with a welded-on web made of a different nickel-base alloy, in particular HR6W, both materials preferably having an austenitic microstructure.
- a vertical direction of the finished membrane wall of the large steam generator last and highest range that the membrane wall partially, in particular in a third portion of the large steam generator (in which the respective pipe a Radiomaterialgrenztemperatur of up to about equal to withstand 55O 0 C) at least In some areas, it consists of pipe-web-pipe connections or fin pipe connections, in which the web and adjoining pipe or adjoining fin pipes each consist of a steel material having a ferrite-bainitic microstructure, in particular of 7CrMoVTiBlO-IO.
- the invention further provides that in the discharge section and / or in the first evaporator section and / or in the second evaporator section and / or in the first subarea with vertical guidance and / or in the second subarea with vertical guidance and / or or in the third section of the large steam generator each pipe-web-pipe connections or
- Flossenrohritatien are formed, in which a web and an adjoining pipe or two adjoining web portions of the pipe-web-pipe connection or two adjacent fin pipes of the fin pipe connection of different steel material and / or different nickel-based alloy and / or materials with different microstructure are welded together ,
- the invention provides in an embodiment that in the discharge section and / or in the first evaporator section and / or in the second evaporator section and / or in the first section with vertical bore and / or in the second section with vertical bore and / or in the third section each pipe web Pipe connections or
- Flossenrohritatien are formed, in which a web and an adjoining pipe or two adjacent web portions of the pipe web-tube
- connection or two adjacent fin tube of the fin pipe connection of the same steel material and / or the same nickel-based alloy and / or materials are welded together with the same microstructure.
- the invention is also characterized by the fact that in at least one of the evaporator subregions and the subregions with
- each pipe-web-pipe connections or fin pipe connections are formed, in which a web and an adjoining pipe or two adjoining web portions of the pipe-web-pipe connection or two adjacent fin pipes of Flossenrohritati from each different steel material and / or different
- Nickel-based alloy but are welded together with the same or similar microstructure.
- the membrane wall composed of different partial regions also has transition regions from one partial region to another vertically arranged above the other partial region.
- the invention initially provides that in the transition region from the discharge section to the first evaporator section and / or in the transition region from the first evaporator section to the second evaporator section and / or in the transition region from the second evaporator section to the first section with vertical contact and / or in the transition section from the first section Subarea with vertical contact to the second subarea with vertical contact and / or in the transition region from the second subarea with vertical contact to the third subarea of the large steam generator, each pipe-web-pipe connections or
- Flossenrohritatien are formed, in which in each case a web and / or a pipe of a partial area with an adjacent web and / or pipe of another portion of different steel material and / or different nickel-based alloy and / or made of materials with different microstructure are welded together.
- each pipe web-tube connections or fin tube connections are formed, in which in each case a web and / or a Tube of a sub-area with an adjacent web and / or tube of another portion of the same steel material and / or the same nickel-based alloy and / or are welded together from a material having the same microstructure.
- the invention finally also provides that in at least one transition region between an evaporator section or partial area with vertical contact and a partial area with vertical contact each pipe web Pipe connections or
- Flossenrohritatien are formed, in which in each case a web and / or a pipe of a partial area with an adjacent web and / or tube of another portion of two different steel materials and / or different nickel-based alloy, but with the same or similar microstructure welded together.
- FIG. 1 is a schematic representation of a side wall of a membrane wall
- FIG. 2 shows a schematic plan view of a membrane wall segment.
- Figure 1 shows a schematic representation of a side wall of a membrane wall 1 of a large steam generator, which consists of six vertically stacked sections 2-7. In the right-hand part of the drawing, it is indicated in each case from which preferred material in the respective partial area 2-7 on the one hand the respective tubes carrying the medium and on the other of the respective two webs connecting web or welded to a pipe web portion in the embodiment.
- the material-related microstructure of the respective material is specified for each area.
- the membrane wall 1 consists of pipe-web-pipe connections, in which both the pipe and the web of ferritic-bainitic steel material 7CrMoVTiBlO- 10 exist.
- the membrane wall 1 In the vertically arranged above the first evaporator section 3 of the large steam generator, in which the respective pipe withstands a material operating temperature in the range of about 550 0 C to about equal to 600 0 C, the membrane wall 1 consists of a pipe-web-pipe connection, in which pipe and bridge made of the steel material VM12, which has a martensitic microstructure.
- Operating material limit temperature is understood as the temperature at which the respective pipe achieves a service life of at least 200,000 operating hours, taking into account its oxidation behavior (steam side), its corrosion behavior (flue gas / combustion chamber side) and its strength behavior (creep).
- the evaporator section 4, the first section 5 with vertical guidance, the second section 6 with vertical guidance and the third section 7, are altogether assembled on the construction site of a power plant from individual prefabricated segments in the workshop to the respective section and membrane wall.
- These individual membrane wall part segments 8 are usually welded to their upper and lower sides as well as at their opposite longitudinal sides with adjacent membrane wall part segments 8 '. While the adjacent segments 8 'welded to the longitudinal sides are generally each one of the same subarea 2 to 7 of the membrane wall 1, adjacent segments lying vertically and vertically above the adjacent subarea 3 to 3 may be provided on the upper and lower side 7 of the membrane wall 1 to be connected by welding.
- the individual segments 8, 8' are preferably all around, ie on their upper and lower sides 11, 12 and on the two longitudinal sides with in the Workshop welded tubes 13 or webs 14, 15, 16 or fins made of a different material, in the present example of the nickel-based alloy A617 or HR6W austenitic structure provided.
- This so-called pre-shoeing takes place in the workshop and at the top and bottom 11, 12 of a respective segment 8, 8 'of VM12 or T92 steel tubes 13 and webs 14 or fins in a length of about 100-150 mm welded from A617 or HR6W.
- a web width ie half the rule web width 15, 16, of austenitic nickel-base alloy of A617 or HR6W is welded.
- segments 8 which are then transported as a transport unit to the construction site, are produced in the workshop, which have a connection of nickel-based alloy all around, on which partial segments 8 'of the membrane wall 1 can be welded by means of a weld.
- pre-welding and welding the elements made of nickel-based alloy it is possible to perform in the workshop the necessary annealing and heat treatment of the necessarily resulting welding zones and so the individual, one Transport unit forming membrane wall part segments 8 or segments of the membrane wall 1 produce.
- connection with other membrane wall part segments 8 'constructed and manufactured in the same way is then effected via welds which are made on the sections of the upstream elements formed from nickel-base alloy materials.
- the martensitic VM12 or T92 material is no longer influenced by heat, so that a heat treatment or annealing treatment on the construction site is not necessary.
- the evaporator section 3 is assembled and mounted on the construction site.
- the material sequence of ferritic-bainitic 7CrMoVTiBlO-10 steel in the discharge section 2, nickel-base alloy in the upstream section and martensitic VM 12 or T 92 steel in the evaporator section 3 is thus present in the vertical direction.
- a weld along the respective pre-grouted land area 15, 16 made of nickel-based alloy material (A617 or HR6W) is also performed. Since it is welded here in nickel-based alloy material, again there is no influence on the martensitic structure of the pipe or fin or web material adjoining the other web side.
- 16 comprises a plurality of tubes and / or webs of nickel-based alloy material, may vary depending on
- membrane part segments 8, 8 ' Another possibility of the design of the membrane part segments 8, 8 ' is that the pre-shoes on the top and bottom 11, 12 includes only the attachment of the short tubes 13. A at its top and bottom 11, 12 so vorgeuhtes membrane segment 8, 8 ', which may be provided on its longitudinal sides otherwise in one of the other ways with a material portion of nickel-based alloy material is produced in the workshop and then transported to the site. At the construction site, the upstream pipes are then welded, each with an adjoining membrane segment, and which in the area of the
- a second evaporator portion 4 of the steam generator is arranged, in which the respective tube of an operating material limit temperature in the range of about equal to 600 0 C to approximately equal to 62O 0 C withstand.
- the tubes and webs are made of nickel-based alloy material A617 or HR6W, each having an austenitic microstructure.
- these webs 14 and tubes 13 are then welded to a corresponding web or at least web portion and with a corresponding tube of the material A617 or HR6W of the second evaporator section 4, in which case a heat treatment of the martensitic tubes 9 and webs 10 of VM12 or T92 is no longer necessary.
- a welding in the second evaporator section 4 laterally juxtaposed wall parts or segments is not a problem, since they have an austenitic structure and a special heat treatment after welding adjacent membrane wall sections on the job site is not necessary.
- a first section 5 of the large steam generator is then arranged with vertical guidance, in which the respective pipe withstands an operating material limit temperature in the range from approximately equal to 620 ° C. to approximately 600 ° C.
- the pipes and the webs of the nickel-based alloy A617 austenitic structure are then welded together without any problem here. In particular, this is also possible because no materials with martensitic microstructure are used or are present in these areas.
- first portion 5 with vertical bore then joins a second portion 6 of the large steam generator with Vertikalberohrung, in which the respective pipe withstands an operating material limit temperature in the range of approximately equal to 550 ° C.
- pipes and webs of the pipe-web-pipe connection also do not consist of different nickel-based alloy materials, namely the nickel-based alloys A617 and HR6W, but both have an austenitic microstructure. Again, the transition region between the first portion 5 and second portion 6 is therefore easily realized by means of welded joints.
- the third partial area 7 of the large steam generator adjoins the second partial area 6 of the vertical steam generator at the top in the membrane wall 1, in which the respective pipe can withstand an operating material limit temperature in a range of up to approximately 600 ° C.
- the material 7CrMoVTiBlO-IO which has a ferritic-bainitic structure, is used both for the pipe and for the web of the respective pipe-web-pipe connection. This material can easily be welded together at the construction site, but also with the nickel-base alloy material A617 and HR6W with austenitic microstructure, so that special measures, such as the attachment and provision of pre-fabricated material is not necessary here.
- different materials are used between pipe and fin in the respective horizontal membrane wall region, for example in the membrane part segments of the second subregion 6 of the large steam generator with vertical bore.
- membrane part segments 8, 8 'use in their area in the Substantially consist of a material with a martensitic structure (VM12 in the evaporator section 3) and with smoke-side exclusion areas from the other hand, in particular a higher strength and / or corrosion resistance and / or
- Oxidation resistant material are equipped.
- these exclusion areas are made up of inferred elements
- Nickel-based alloy material material formed. These regions can be formed and arranged both on the longitudinal sides 15, 16 and on the respective upper and lower sides 11, 12 of a membrane wall part segment 8, 8 '.
- the membrane wall 1 also provides different materials seen over the vertical extent of the membrane wall 1, in particular also the use of materials having a ferritic-bainitic and martensitic structure.
- Fin tubes are tubes that are deformed by a continuous process, such as hot extrusion, so that two fin regions protrude diametrically opposite the cylindrical body. Fin tubes can thereby be joined together to form a membrane wall such that in each case a fin region of adjacent fin tubes is welded to a fin region of the opposite tube.
- omega or double omega tubes can be used.
- the membrane wall part segment 8 is one that is used in the first evaporator section 3. It consists essentially of longitudinally alternately juxtaposed and juxtaposed tubes 9 and webs 10 of the steel material VM12 or T92 with martensitic microstructure. In the longitudinal direction of the tubes 9 and webs 10 each short tube pieces 13 or web pieces 14 are each welded to a tube 9 or a web 10 at the top and bottom 11, 12 of the membrane wall part segment 8.
- the tube and web pieces 13, 14 have a length of about 100-150 mm. These tube and web pieces 13, 14 are made of a nickel-based alloy material, in particular A617 or HR6W, which is an austenitic structure having.
- A617 or HR6W which is an austenitic structure having.
- the welding of the respective tubes 9 and webs 13 with the pipe sections 10 and web pieces 14 takes place in the workshop in the preparation of the membrane wall part segment 8, so that there the necessary heat and annealing treatment can be performed.
- a web strip 15, 16 is welded to the respective outside pipe 9, which preferably has half the width of the rule web width.
- These ⁇ teg Societye 15, 16 are formed of the same nickel-based alloy material as the tube and web pieces 13, 14.
- the membrane wall part segment 8 is thus all around, ie at all its longitudinal sides and longitudinal edges vorgeschht with a material of nickel-based alloy material.
- the membrane wall part segment 8 is then welded to these regions via a respective adjoining membrane wall part segment 8 ', wherein the membrane wall part segments 8, 8' formed within the first evaporator part region 3 are preferably identical to the illustrated membrane wall part segment 8 with respect to the material composition.
- the connection of an identical membrane wall part segment 8 ' is indicated.
- the respective membrane wall part segment 8 can then upwards and / or downwards either with identically constructed membrane wall part segments 8, 8 'or in the transition region of, for example, the first evaporator section 3 to the vertically arranged above the second evaporator section 4 with a membrane wall part segment of the second evaporator section 4 are welded, in which the pipe-web-pipe connection is made entirely of a nickel-based alloy, for example A617.
- the pipe-web-pipe connection is made entirely of a nickel-based alloy, for example A617.
- the membrane wall 1 is constructed overall such that it has at least one evaporator section, in the present exemplary embodiment the evaporator section 3, which consists of a martensitic material.
- the evaporator section 3 which consists of a martensitic material.
- pipe-web-pipe connections or fin pipe connections are formed, in which a tube of VM12 or T12, which materials have a martensitic structure, with a fin from VM12 or T12 or T92 (martensitic structure) or A617 (nickel-based alloy, austenitic structure) or HR6W (nickel-base alloy, austenitic structure).
- these two-dimensional membrane wall regions in one of the evaporator subregions 2-7 may consist of a tube of T24 with a ferritic-bainitic structure or of 7CrMoVTiBlO-10 of ferritic-bainitic structure, on which in each case at least one fin likewise made of T24 or 7CrMoVTiBlO-10 or of VM12 or from 13CrMo4 - 4 is attached.
- Another possibility is to attach a T92 or VM12 or A617 or HR6W fin to a T92 tube of martensitic structure.
- flat diaphragm wall regions in one of the evaporator sections 2 - 7 may consist of a tube made of HR6W with a fin attached to it also made of HR6W or A617.
- Another possibility is to pre-fabricate membrane walls consisting of VM12 material laterally with A617 or HR6W and to connect to T24 existing diaphragm wall areas with admiruhter fin or vorschhtem web of A617 or HR6W, here also preferably the fin or the web half the rule web width having. It is also possible in each case to provide diaphragm wall regions, which consist of T92 material, in each case with Vorschuh Schemeen A617 or HR6W or diaphragm wall regions, which consist of T92 material with vorgeuhten material areas of A617 or HR6W respectively with membrane wall areas to be welded, the T24 material with laterally advanced material of A617 or HR6W (fin / bar or possibly tube). Again, the fin or the web can each have half the rule web width.
- the material combinations VM12 pipe, pre-fitted with pieces of pipe from A617 or HR6W with pipes made of VM12, which also have advanced pipe sections from A16 or HR6W or the connection of VM12 Pipes intended with pipe pieces from A617 or HR6W are provided with pipes from T24 for welding.
- Another The combination of materials for this application consists of welding T92 material pipes with A617 or HR6W pre-grouted pipe fittings with identically constructed T92 pipes with pre-grouted pipe sections from A617 or HR6W or with T24 pipes.
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Metallurgy (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Heat Treatment Of Articles (AREA)
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Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RS20160627A RS55108B1 (en) | 2008-07-02 | 2009-04-21 | Membrane wall of a large-scale steam generator |
MEP-2016-179A ME02471B (en) | 2008-07-02 | 2009-04-21 | Membrane wall of a large-scale steam generator |
HRP20161007TT HRP20161007T1 (en) | 2008-07-02 | 2016-08-10 | Membrane wall of a large-scale steam generator |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008030953 | 2008-07-02 | ||
DE102008047784A DE102008047784A1 (en) | 2008-07-02 | 2008-09-17 | Membrane wall of a large steam generator |
PCT/EP2009/002888 WO2010000346A2 (en) | 2008-07-02 | 2009-04-21 | Membrane wall of a large-scale steam generator |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2297517A2 true EP2297517A2 (en) | 2011-03-23 |
EP2297517B1 EP2297517B1 (en) | 2016-05-11 |
Family
ID=41396870
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09772046.0A Revoked EP2297517B1 (en) | 2008-07-02 | 2009-04-21 | Membrane wall of a large-scale steam generator |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP2297517B1 (en) |
CY (1) | CY1117894T1 (en) |
DE (1) | DE102008047784A1 (en) |
DK (1) | DK2297517T3 (en) |
ES (1) | ES2587855T3 (en) |
HR (1) | HRP20161007T1 (en) |
HU (1) | HUE030359T2 (en) |
LT (1) | LT2297517T (en) |
ME (1) | ME02471B (en) |
PL (1) | PL2297517T3 (en) |
PT (1) | PT2297517T (en) |
RS (1) | RS55108B1 (en) |
WO (1) | WO2010000346A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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EP3623700A1 (en) | 2018-09-12 | 2020-03-18 | Balcke-Dürr GmbH | Steam boiler, power plant or waste incinerator and method for securing maintenance work on a steam boiler |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4060272B1 (en) | 2021-03-19 | 2023-08-02 | Steinmüller Engineering GmbH | Tube / membrane wall comprising longitudinally welded tubes |
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DD393A (en) * | ||||
DE1074806B (en) * | 1960-02-04 | Deutsche Babcock &. Wilcox-Dampfkessel-Werke Aktien-Gesellschatt, Oberhausen (RhId.) | Gas-tight pipe wall for combustion chambers | |
NL30859C (en) * | 1930-09-02 | |||
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-
2008
- 2008-09-17 DE DE102008047784A patent/DE102008047784A1/en not_active Withdrawn
-
2009
- 2009-04-21 WO PCT/EP2009/002888 patent/WO2010000346A2/en active Application Filing
- 2009-04-21 RS RS20160627A patent/RS55108B1/en unknown
- 2009-04-21 HU HUE09772046A patent/HUE030359T2/en unknown
- 2009-04-21 ES ES09772046.0T patent/ES2587855T3/en active Active
- 2009-04-21 EP EP09772046.0A patent/EP2297517B1/en not_active Revoked
- 2009-04-21 LT LTEP09772046.0T patent/LT2297517T/en unknown
- 2009-04-21 PL PL09772046.0T patent/PL2297517T3/en unknown
- 2009-04-21 ME MEP-2016-179A patent/ME02471B/en unknown
- 2009-04-21 PT PT97720460T patent/PT2297517T/en unknown
- 2009-04-21 DK DK09772046.0T patent/DK2297517T3/en active
-
2016
- 2016-08-10 HR HRP20161007TT patent/HRP20161007T1/en unknown
- 2016-08-11 CY CY20161100800T patent/CY1117894T1/en unknown
Non-Patent Citations (1)
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See references of WO2010000346A2 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3623700A1 (en) | 2018-09-12 | 2020-03-18 | Balcke-Dürr GmbH | Steam boiler, power plant or waste incinerator and method for securing maintenance work on a steam boiler |
Also Published As
Publication number | Publication date |
---|---|
CY1117894T1 (en) | 2017-05-17 |
PL2297517T3 (en) | 2016-11-30 |
RS55108B1 (en) | 2016-12-30 |
ES2587855T3 (en) | 2016-10-27 |
DE102008047784A1 (en) | 2010-01-07 |
HRP20161007T1 (en) | 2016-10-21 |
HUE030359T2 (en) | 2017-05-29 |
WO2010000346A3 (en) | 2010-05-20 |
EP2297517B1 (en) | 2016-05-11 |
WO2010000346A4 (en) | 2010-07-08 |
LT2297517T (en) | 2016-09-12 |
DK2297517T3 (en) | 2016-08-29 |
PT2297517T (en) | 2016-08-18 |
WO2010000346A2 (en) | 2010-01-07 |
ME02471B (en) | 2017-02-20 |
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