EP3959478A1 - Wärmetauscher, verfahren zum herstellen eines wärmetauschers sowie kraftwerk mit einem solchen wärmetauscher - Google Patents
Wärmetauscher, verfahren zum herstellen eines wärmetauschers sowie kraftwerk mit einem solchen wärmetauscherInfo
- Publication number
- EP3959478A1 EP3959478A1 EP20728962.0A EP20728962A EP3959478A1 EP 3959478 A1 EP3959478 A1 EP 3959478A1 EP 20728962 A EP20728962 A EP 20728962A EP 3959478 A1 EP3959478 A1 EP 3959478A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- lamellae
- pipelines
- cooling
- holes
- 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.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- 239000000112 cooling gas Substances 0.000 claims abstract description 27
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 241000446313 Lamella Species 0.000 claims description 46
- 239000000498 cooling water Substances 0.000 claims description 26
- 239000003507 refrigerant Substances 0.000 claims description 16
- 239000002826 coolant Substances 0.000 claims description 15
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000002184 metal Substances 0.000 claims description 12
- 238000003825 pressing Methods 0.000 claims description 11
- 239000007769 metal material Substances 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 15
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
- F28D7/082—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
- F28D7/085—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions
- F28D7/087—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions assembled in arrays, each array being arranged in the same plane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K13/00—General layout or general methods of operation of complete plants
- F01K13/006—Auxiliaries or details not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
- F28D7/0083—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with units having particular arrangement relative to a supplementary heat exchange medium, e.g. with interleaved units or with adjacent units arranged in common flow of supplementary heat exchange medium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
- F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements
- F28F1/325—Fins with openings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
- F28F21/081—Heat exchange elements made from metals or metal alloys
- F28F21/085—Heat exchange elements made from metals or metal alloys from copper or copper alloys
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0028—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices
- F28D2021/0031—Radiators for recooling a coolant of cooling systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/004—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for engine or machine cooling systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/001—Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core
- F28F2009/004—Common frame elements for multiple cores
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2210/00—Heat exchange conduits
- F28F2210/08—Assemblies of conduits having different features
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2215/00—Fins
- F28F2215/04—Assemblies of fins having different features, e.g. with different fin densities
Definitions
- Heat exchanger method for producing a heat exchanger and power plant with such a heat exchanger
- the present invention relates to a heat exchanger through which a medium to be cooled flows in one flow direction during its operation.
- the present invention also relates to a method for producing such a heat exchanger.
- the invention relates to a power plant with a generator cooled by a generator cooling gas and a heat exchanger cooling the generator cooling gas.
- Power plants such as gas turbines, steam turbines, combined gas and steam turbines, solar power plants or the like, comprise a large number of components that require cooling in order, on the one hand, to dissipate the resulting heat loss and, on the other hand, to increase the output of the power plant.
- This also applies to the generator used to generate electricity, which is usually cooled with generator cooling gas that has been recooled via a heat exchanger.
- the heat exchanger is usually connected to a closed cooling water system of the power plant, via which other heat exchangers are also supplied with cooling water, for example those for lubricating and / or sealing oil cooling, for cooling pumps or the like.
- the recooling of the cooling water of the cooling water circuit can be done in various ways, for example by means of fresh water flow cooling, circulation cooling using a cooling tower or air-cooled coolers, etc.
- a possible achievable electrical power on the generator depends on the cold gas temperature of the generator cooling gas given for cooling the generator windings, that is to say the generator cooling gas temperature when entering the generator.
- the lower the cold gas temperature the more mechanical energy can be converted into electrical energy in the generator.
- the generator cooling gas is recooled as previously described within a heat exchanger through which cooling water from the cooling water system of the power plant flows.
- the cold gas temperature of the generator cooling gas is thus coupled to the cooling water temperature of the cooling water flowing through the heat exchanger.
- the cooling water temperature depends on the re-cooling of the cooling water and consequently cannot be reduced at will. This also places limits on the electrical power that can be achieved at the generator.
- the present invention creates a heat exchanger comprising a first lamella pack which has a plurality of first lamellae stacked in a stacking direction extending transversely to the flow direction, the first lamellae each being provided with a plurality of first through holes which are stacked direction are aligned with each other, at least one arranged in the flow direction adjacent to the first disk pack further disk pack, which has a plurality of stacked in the stacking direction second lamellae, the second lamellae each with a plurality of second
- Through holes are provided which are aligned in the stacking direction with each other, first pipes, which lensecs extend through the first through holes of the first lamellae of the first lamellae and are pressed with the first lamellae, second pipes, which extend through the second through holes of the second lamellae extend at least one further lamella set and connect with the second lamellae are pressed, wherein the first pipelines and the second pipelines are not fluidically connected to one another and are provided for the passage of a first and a second cooling medium, the cooling media being different from one another, and at least one connecting the first plate pack and the at least one further plate pack to one another Cover, which is placed in the stacking direction on an outer first lamella of the first lamella set and on the adjacent outer second lamella of the at least one further lamella set and covers these lamellae, where the at least one cover with corresponding to the first through holes of the first lamellae of the first
- Lamellar set arranged and formed first through openings is provided through which the first Rohrlei lines are guided, and is provided with corresponding to the second through holes of the second lamellae of the at least one further lamella set arranged and formed two th through openings through which the two th pipelines passed are.
- Such a heat exchanger is advantageous in that it can be operated with two different cooling media.
- the first cooling medium can, for example, be cooling water.
- a refrigerant that is recooled in a refrigeration machine can be used as the second cooling medium.
- the medium to be cooled is generator cooling gas
- its cold gas temperature when entering the generator is not limited by the degree of re-cooling of the cooling water of the cooling water system of the power plant. Rather, the cold gas temperature of the generator cooling gas can be further reduced by the heat exchange with the refrigerant flowing through the heat exchanger, so that it can be flexibly adapted to the cooling requirements of the generator if, for example, performance-enhancing measures are taken on the turbine.
- Another advantage of the heat exchanger according to the invention is that, due to the mechanical coupling of the plate packs through which the different cooling media flow, which via the at least At least one cover takes place, both lamella packs are given very good mechanical rigidity with a very inexpensive and small-volume structure at the same time, even if one of the lamella packs, for example, should only have a very low inherent rigidity due to a small overall depth. This is particularly important if an existing heat exchanger, in which the generator cooling gas has previously only been recooled using cooling water, is to be replaced by a heat exchanger according to the invention in order to lower the cold gas temperature of the generator cooling gas by additional cooling using a refrigerant.
- the first fins have a larger area than the second fins.
- the dimensions of the lamellae of the respective plate packs are adapted to the respective cooling medium.
- the formation of the surface of the first lamellae is preferably different from the formation of the surface of the second lamellae. In this way, too, the disk packs can be adapted to the respective cooling medium.
- the first lamellae and the second lamellae are advantageously made from sheet metal, for example from aluminum, in order to achieve good thermal conductivity.
- a distance between the first lamellae in the stacking direction is different from the distance between the second lamellae in the stacking direction, preferably greater.
- the first lamellae and the second lamellae can in accordance with the invention be produced from a sheet metal material that has a coating on one or both sides.
- the first pipes are preferably connected to one another via U-shaped connecting lines and the first cooling medium flows through them one after the other and / or the second pipes are connected to one another via U-shaped connecting lines and the second cooling medium flows through one after the other.
- the flow cross section of the first pipelines is different from the flow cross section of the second pipelines, preferably larger.
- the first pipelines and the second pipelines are made from a metallic material, preferably from copper, as a result of which good thermal conductivity is achieved.
- the inner surfaces of the first pipelines and / or the inner surfaces of the second pipelines advantageously have a structure in order to enlarge them, which is conducive to better heat transfer.
- an arrangement pattern of the first through holes differs from the arrangement pattern of the second through holes.
- the at least one cover is advantageously made from a metallic material, preferably from a metal sheet. This leads to a simple and inexpensive construction of the at least one cover.
- the at least one cover advantageously grips the first disk pack and the at least one further disk pack opposite sides, whereby the mechanical rigidity of the construction is further increased.
- the first disk pack and the at least one further disk pack are connected to one another via at least one side part.
- Such a side part is also very beneficial to the mechanical rigidity of the construction.
- the present invention provides a method for producing a heat exchanger designed according to the invention, in which the first lamellae and the second lamellae are produced simultaneously on a single lamella pressing device, for example using a lamella pressing tool which has both features of the first lamellae and features of the second lamella defined. In this way a very effective production of the heat exchanger according to the invention is achieved.
- the first pipelines and the second pipelines are preferably expanded simultaneously in a pipeline expansion machine. Such a simultaneous expansion is also very conducive to effective production of the heat exchanger according to the invention.
- the present invention creates a power plant with a generator cooled by a generator cooling gas and a heat exchanger according to the invention that cools the generator cooling gas.
- the first cooling medium flowing through the heat exchanger is cooling water and the second cooling medium flowing through the heat exchanger is a refrigerant, for example tetrafluoroethane (R-134a) or carbon dioxide.
- a refrigerant for example tetrafluoroethane (R-134a) or carbon dioxide.
- FIG. 1 shows a schematic view of a power plant according to an embodiment of the present invention
- FIG. 2 is a schematic view of an embodiment
- Figure 3 is a schematic side view in the direction of
- Figure 4 is a plan view of a first lamella of a first
- FIG. 5 shows a top view of a second lamella of a further lamella set of the heat exchanger shown in FIG. 2;
- FIG. 6 shows a schematic view of a lamella production machine for producing the lamellae shown in FIGS. 4 and 5;
- Figure 7 is a schematic perspective view of a
- Lamella pressing tool of the lamella manufacturing machine shown in Figure 6
- FIG. 8 shows a schematic view of pipeline expansion tools of a pipeline expansion machine.
- Figure 1 shows a power plant 1 according to an embodiment of the present invention.
- the power plant 1 is a gas turbine power plant, which in principle can also be any other type of power plant.
- the power plant 1 comprises an air compressor 2, a gas turbine 3, a generator 4 and a transformer 5.
- air compressed by the air compressor 2 is mixed with fuel in a known manner and the fuel-air mixture is ignited.
- the resulting combustion gas is fed to the gas turbine 3 and expanded there by driving a gas turbine rotor 6.
- the gas turbine rotor 6 drives the rotor 46 of the generator 4, which converts the kinetic energy into electrical energy.
- the transformer 5 transforms the electrical energy in such a way that it can be fed to a power supply network.
- the generator 4 is supplied with direct current during operation via slip rings or a brushless exciter 47.
- a heat exchanger 8 according to one embodiment of the present invention is provided for recooling the generator cooling gas.
- the generator cooling gas is cooled on the one hand using cooling water that circulates in a cooling water circuit 9, and on the other hand by a refrigerant that circulates in a refrigerant circuit 10.
- the cooling water circuit 9 is the so-called intermediate cooling water circuit of the power plant 1, to which further heat exchangers are also connected, via which, for example, lubricating oil, sealing oil, pumps and / or other components of the power plant 1 are cooled.
- the refrigerant circuit 10 through which the refrigerant flows comprises a refrigeration machine for recooling the refrigerant. Tetrafluoroethane (R-134a) is used here as refrigerant.
- the generator cools gas from the generator 4, is cooled back in the heat exchanger 8 and then fed back into the generator 4.
- the heat extracted from the generator cooling gas is transferred on the one hand to the cooling water flowing through the cooling water circuit 9 and on the other hand to the refrigerant flowing through the refrigerant circuit 10.
- An essential advantage of the power plant 1 shown in FIG. 1 is that the cooling of the generator cooling gas flowing through the generator cooling gas circuit 7 does not only take place via cooling water, but also via a refrigerant. In this way, the cold gas temperature of the generator cooling gas when it enters the generator 4 can be set or controlled very flexibly and as required.
- Another advantage is that the generator cooling gas is recooled by the cooling water and the Käl tesch in a single heat exchanger 8, since 8 space is saved by using a single heat exchanger. This is particularly important if an existing heat exchanger of a power plant, in which the re-cooling takes place solely using cooling water, is to be replaced by a heat exchanger according to the invention, since the available space is then defined by the dimensions of the old heat exchanger and is limited accordingly.
- FIG. 2 shows a possible design of a heat exchanger 8 according to the invention.
- the heat exchanger 8 which flows through the heat exchanger 8 in a direction of flow marked by the arrows 11, comprises a first lamella pack 12, which has a plurality of plates extending transversely to the flow direction, indicated by the arrow 13 marked stacking direction has stacked first lamellae 14.
- the first lamellae 14 are each provided with a plurality of first through holes 15 which are aligned with one another in the stacking direction.
- the heat exchanger 8 comprises at least one in the flow direction adjacent to the first disk pack 12 arranged further disk pack 16, which has a plurality of ge in the stacking direction stacked second lamellae 17, the second lamellae 17 are each provided with a plurality of second through holes 18 which are aligned in the stacking direction with each other.
- the first lamellae 14 and the second lamellae 17 are each made from sheet metal material, in the present case from aluminum, wherein the first lamellae 14 and / or the second lamellae 17 can be provided with a coating on one or both sides.
- the first lamellae 14 differ from the second lamellae 17 in that they have a larger area.
- apart from the first through holes 15, the surfaces of the first lamellae 14 are smooth in the present case, while the surfaces of the second lamellae 17 are structured.
- the structuring is defined in the illustrated embodiment by upwardly provided, laterally slotted raised areas 19, whereby the surfaces of the second lamellae 17 are enlarged and the flow of the generator cooling gas through the further lamellae pack 16 is influenced.
- first lamellae 14 and the second lamellae 17 can in principle vary as required. Another difference is that a distance a ⁇ between the first lamellae 14 in the stacking direction is greater than a distance a2 between the second lamellae 17 in the stacking direction.
- arrangement pattern of the first through holes 15 differ from the arrangement pattern of the second through holes 18 from one another, as can be seen from FIGS. 3 and 4.
- the heat exchanger 8 further comprises first pipelines 20, which extend through the first through holes 15 of the first lamellas 14 of the first lamella set 12 and are pressed with the first lamellas 14, as well as second Rohrlei lines 21, which extend through the second through holes 18 of the second lamellae 17 of the at least one further lamella set 16 extend and are pressed with the second lamellae 17.
- the first pipelines are each connected to one another via U-shaped connecting lines 22 and the cooling water flows through one after the other, which enters the first disk pack 12 in the direction of the arrow 23 and exits it in the direction of the arrow 24.
- the two th pipes 21 are each connected via U-shaped connecting lines 25 and are successively traversed by the refrigerant that enters the further lamella pack 16 in the direction of the arrow 26 and exits it in the direction of the arrow 27.
- the first pipelines 20 and the second pipelines 21 are each made of a metallic material, in the present case copper, the flow cross section of the first pipelines 20 being greater than the flow cross section of the second pipelines 21.
- the inner surfaces of the first pipelines 20 and / or the inner surfaces of the second pipelines 21 can have a structure in order to increase their surface area.
- the heat exchanger 8 also comprises an upper and a lower cover 28, which each connect the first plate pack 12 and the further plate pack 16 to one another.
- the covers 28 are placed in the stacking direction from below or from above on the outer first lamellae 14 of the first lamella set 12 and on the adjacent outer second lamellae 17 of the further lamella set 16 and cover these lamellae 14 and 17.
- the covers 28 are arranged and designed to correspond to the first through holes 15 of the first lamellae 14 of the first lamella set 12
- the covers 28 are made of a metallic material, each in the present case from a metal sheet made of aluminum. On the one hand, they have bevels 31 pointing in the direction of the plate packs 12 and 16, which enclose them on opposite sides, and on the other hand, outward-facing bevels 32 that serve to protect the pipelines 20, 21 or the connecting lines 22, 25 connecting them to one another. From the covers 28 are presently connected to each other via struts 33, which give the heat exchanger a good mechanical stiffness.
- Figure 6 shows schematically a lamellar manufacturing machine 34 with a sheet metal roll receiving device 36 receiving a sheet metal roll 35, a sheet metal conveying device 37, a lamellar pressing device 38 which has an upper lamellar press tool 39 and a lower lamellar pressing tool 40, a lamellar transport device 41 and a lamellar stacking device 42.
- both the first lamellae 14 and the second lamellae 17 are formed in that the lamella pressing tools 39 and 40 are moved towards and away from one another.
- the lamellar pressing tools 39 and 40 have different areas Al, A2, A3, A4, B1, B2, B3 and B4 which form the features of the lamellae 14 and 17.
- the first lamellae 14 and second lamellae 17 produced in this way in the lamella pressing device 38 are then used the lamella transport device 41 is moved to the Lamellenstapelein direction 42, where the first lamellae 14 and the second lamellae 17 are each stacked one on top of the other.
- the stacked fins 14 and 17 are then moved to a pipe expansion machine 43. There are the pipes 20 and 21, which meanwhile in the associated through holes 15, 18 of the stacked lamellas
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Thermal Sciences (AREA)
- Geometry (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019208619.5A DE102019208619A1 (de) | 2019-06-13 | 2019-06-13 | Wärmetauscher, Verfahren zum Herstellen eines Wärmetauschers sowie Kraftwerk mit einem solchen Wärmetauscher |
| PCT/EP2020/063124 WO2020249340A1 (de) | 2019-06-13 | 2020-05-12 | Wärmetauscher, verfahren zum herstellen eines wärmetauschers sowie kraftwerk mit einem solchen wärmetauscher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3959478A1 true EP3959478A1 (de) | 2022-03-02 |
Family
ID=70918384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20728962.0A Withdrawn EP3959478A1 (de) | 2019-06-13 | 2020-05-12 | Wärmetauscher, verfahren zum herstellen eines wärmetauschers sowie kraftwerk mit einem solchen wärmetauscher |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20220228809A1 (de) |
| EP (1) | EP3959478A1 (de) |
| DE (1) | DE102019208619A1 (de) |
| WO (1) | WO2020249340A1 (de) |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4411309A (en) * | 1981-03-16 | 1983-10-25 | Ex-Cell-O Corporation | Heat exchanger assembly |
| JP2002130743A (ja) * | 2000-10-30 | 2002-05-09 | Mitsubishi Heavy Ind Ltd | 室外熱交換器ユニット構造、室外機ユニット及びガスヒートポンプ式空気調和機 |
| DE102004006276A1 (de) * | 2004-02-09 | 2005-08-25 | Linde Kältetechnik GmbH & Co. KG | Teilstrukturierte Wärmetauscherlamellen |
| JP3807410B2 (ja) * | 2004-04-28 | 2006-08-09 | ダイキン工業株式会社 | 吸着熱交換器 |
| JP4991904B2 (ja) * | 2010-04-26 | 2012-08-08 | シャープ株式会社 | 熱交換装置 |
| KR20140106493A (ko) * | 2011-12-09 | 2014-09-03 | 파나소닉 주식회사 | 공기 조화기 |
| DE102012007063B4 (de) * | 2012-04-03 | 2020-07-09 | Technische Universität Ilmenau | Lamellen-Rohr-Wärmetauscher mit verbesserter Wärmeübertragung |
| WO2014130281A1 (en) * | 2013-02-21 | 2014-08-28 | Carrier Corporation | Tube structures for heat exchanger |
| US10337799B2 (en) * | 2013-11-25 | 2019-07-02 | Carrier Corporation | Dual duty microchannel heat exchanger |
| DE102014212085A1 (de) * | 2014-06-24 | 2015-12-24 | BSH Hausgeräte GmbH | Wärmetauscher für ein Haushaltsgerät, Verfahren zum Herstellen eines solchen sowie Haushaltsgerät mit einem solchen |
| KR101619135B1 (ko) * | 2015-05-08 | 2016-05-11 | 한국에너지기술연구원 | 이젝터 냉동 사이클을 이용한 발전 시스템 |
| DE102015210398A1 (de) * | 2015-06-05 | 2016-12-08 | Bombardier Transportation Gmbh | Thermoelektrischer Generator zur Umwandlung von Wärme eines heißen Gasstroms in elektrische Energie |
| DE102015120334A1 (de) * | 2015-11-24 | 2017-05-24 | Valeo Klimasysteme Gmbh | Wärmetauscher |
| CN106091742A (zh) * | 2016-06-21 | 2016-11-09 | 四川长虹空调有限公司 | 变管径热交换装置及管路系统 |
| US10165668B2 (en) * | 2017-02-16 | 2018-12-25 | Dell Products, Lp | Heat exchanger for an information handling system |
-
2019
- 2019-06-13 DE DE102019208619.5A patent/DE102019208619A1/de not_active Withdrawn
-
2020
- 2020-05-12 WO PCT/EP2020/063124 patent/WO2020249340A1/de not_active Ceased
- 2020-05-12 US US17/616,653 patent/US20220228809A1/en not_active Abandoned
- 2020-05-12 EP EP20728962.0A patent/EP3959478A1/de not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| US20220228809A1 (en) | 2022-07-21 |
| DE102019208619A1 (de) | 2020-12-17 |
| WO2020249340A1 (de) | 2020-12-17 |
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