EP3521746B1 - Tube plat pour échangeur de chaleur - Google Patents
Tube plat pour échangeur de chaleur Download PDFInfo
- Publication number
- EP3521746B1 EP3521746B1 EP18461516.9A EP18461516A EP3521746B1 EP 3521746 B1 EP3521746 B1 EP 3521746B1 EP 18461516 A EP18461516 A EP 18461516A EP 3521746 B1 EP3521746 B1 EP 3521746B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- layer
- flat
- flat tube
- curved portion
- 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.)
- Active
Links
- 239000000463 material Substances 0.000 claims description 11
- 239000012530 fluid Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 238000005219 brazing Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
- F28D1/0391—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits a single plate being bent to form one or more conduits
-
- 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
- F28F1/003—Multiple wall conduits, e.g. for leak detection
-
- 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
- F28F1/02—Tubular elements of cross-section which is non-circular
-
- 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
- F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2225/00—Reinforcing means
- F28F2225/04—Reinforcing means for conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2275/00—Fastening; Joining
- F28F2275/06—Fastening; Joining by welding
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/025—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being corrugated, plate-like 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
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
- F28F3/06—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being attachable to the element
Definitions
- the invention relates to a tube for a heat exchanger. More particularly, the present invention relates to a flat tube for a heat exchanger used in the automotive industry.
- the heat exchange can take place between two fluids.
- the first fluid can be guided through a conduit formed by elements of the heat exchanger.
- These can be two manifolds connected fluidically by means of tubes.
- One of the fluids travels through these tubes between said manifolds.
- the tubes conduct the heat of the first fluid which is then transferred to the second fluid, or vice versa.
- the tubes can comprise inner fins, for example in form of corrugated sheets, the bent portions of which are in contact with said flat parallel walls of the flat tubes. These fins facilitate the heat exchange.
- inner fins for example in form of corrugated sheets, the bent portions of which are in contact with said flat parallel walls of the flat tubes.
- US2009166020A1 describes a fin with both end parts forming a second wall. Each end part of the fin formed a conduit with the corresponding wall of the tube. This solution implies forming the fin with these end parts, and thus a more complex process.
- JP2012229853A describes a tube which upper and lower walls form two ducts at a side wall. Such a solution solves part of the problem but requires more material, as the wall is generally thicker than the fin.
- US2009/014164A1 describes numerous configurations, some of which have a duct in a side wall. The fins are formed by the wall itself, which, in addition to generating process costs, involves an increase in material compared to the use of fins.
- the object of the invention is a flat tube for a heat exchanger, formed by a sheet material and defined by a bottom wall, a top wall and two side walls, wherein at least one of the side walls comprises a first layer and a second layer of the sheet material, characterized in that the first layer has an curved portion forming a conduit together with the second layer.
- the curved portion has a circular cross-sectional shape defined by radius R.
- the first layer comprises brazed portions which form a connection with the second layer at the opposing sides of the conduit.
- the tube further comprises a fin in the space defined by its walls.
- the figures show a flat tube 10 for a heat exchanger.
- the heat exchanger can be a charge air cooler, water charge air cooler, condenser, radiator and the like.
- the flat tube 10 is formed by a sheet material and is defined by a bottom wall 11, a top wall 12 and two side walls 13.
- the side walls can be completely arcuate or can comprise a flat middle section.
- the distance between the bottom wall 11 and the top wall 12 defines the height direction H.
- the distance between the side walls 13 defines the width direction W. This width direction is to be understood to run parallel to the flat, parallel walls 11, 12, while the height direction is to be understood to run perpendicular to the flat, parallel walls 11, 12.
- At least one of the side walls 13 comprises a first layer 13a and a second layer 13b of the sheet material. This is achieved when the tube is manufactured by folding the sheet material into the shape of the flat tube, wherein two opposing ends of the sheet overlap onto each other.
- the tube can also be manufactured from two parts, i.e. a bottom part and a upper part, the side walls being created when respective walls are connected in a layered manner. In either case, the layers can be connected by brazing.
- the first layer 13a has an curved portion 14 forming a conduit 15 together with the second layer 13b.
- This conduit can be closed so that it can guide the fluid between the first layer 13a and the second layer 13b.
- the curved portion 14 protrudes into the inner space of the tube in the width direction and thereby prevents creation of the air bypass when a corrugated fin is placed in the tube.
- the degree of protrusion of the curved portion can be selected depending on the tube and dimensions, so that the unoccupied space between the fin 16 and side wall 13 is minimized.
- the curved portion 14 can have a circular cross-sectional shape defined by radius R.
- the R can be 2,4 mm.
- the first layer 13a comprises brazed portions 16 which form a connection with the second layer 13b at the opposing sides of the conduit 15, that is on the bottom and the top of the side wall 13 along the height direction. This provides improves the rigidness of the tube.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Geometry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Claims (3)
- Tube plat pour un échangeur de chaleur, formé par un matériau en tôle et défini par une paroi inférieure (11), une paroi supérieure (12) et deux parois latérales (13), dans lequel ledit tube plat comprend en outre une ailette ondulée (16) dans l'espace défini entre ses parois (11, 12, 13), dans lequel au moins une des parois latérales (13) comprend une première couche (13a) et une seconde couche (13b) du matériau en tôle,
dans lequel la première couche (13a) a une partie incurvée (14) formant un conduit (15) conjointement avec la seconde couche (13b), la partie incurvée (14) faisant saillie dans l'espace intérieur du tube dans le sens de la largeur et ainsi empêchant la création d'une dérivation d'air lorsque l'ailette ondulée (16) est placée dans le tube, dans lequel la première couche (13a) comprend des parties brasées qui forment une liaison avec la seconde couche (13b) sur les côtés opposés du conduit (15). - Tube plat selon la revendication 1, dans lequel la partie incurvée (14) a une forme de section transversale circulaire définie par un rayon R.
- Tube plat selon la revendication 2, dans lequel le tube a une hauteur H = 7,5 mm et une largeur W = 100 mm, et une partie incurvée (14) a un rayon R = 2,4 mm.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18461516.9A EP3521746B1 (fr) | 2018-02-06 | 2018-02-06 | Tube plat pour échangeur de chaleur |
CN201910106696.9A CN110118504B (zh) | 2018-02-06 | 2019-02-02 | 扁平管 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP18461516.9A EP3521746B1 (fr) | 2018-02-06 | 2018-02-06 | Tube plat pour échangeur de chaleur |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3521746A1 EP3521746A1 (fr) | 2019-08-07 |
EP3521746B1 true EP3521746B1 (fr) | 2023-04-19 |
Family
ID=61187256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18461516.9A Active EP3521746B1 (fr) | 2018-02-06 | 2018-02-06 | Tube plat pour échangeur de chaleur |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3521746B1 (fr) |
CN (1) | CN110118504B (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
LU101492B1 (en) * | 2019-11-25 | 2021-05-26 | Ht Holding Luxembourg S A | Flat heat exchanger tube |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090014164A1 (en) * | 2006-01-19 | 2009-01-15 | Werner Zobel | Flat tube, flat tube heat exchanger, and method of manufacturing same |
EP3623738A1 (fr) * | 2017-07-14 | 2020-03-18 | Japan Climate Systems Corporation | Tube d'échangeur de chaleur |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2690233B1 (fr) * | 1992-04-21 | 1994-06-03 | Valeo Thermique Moteur Sa | Tube d'echangeur de chaleur a dispositif perturbateur integre. |
US6192977B1 (en) | 1999-09-29 | 2001-02-27 | Valeo Thermique Moteur | Tube for heat exchanger |
DE10219867A1 (de) * | 2002-05-03 | 2003-11-20 | Behr Gmbh & Co | Wärmetauscher, insbesondere Ladeluftkühler |
CN101061362B (zh) * | 2004-07-28 | 2011-11-09 | 瓦莱奥公司 | 具有内部翅片的汽车换热器装置及其制造方法 |
US20080078536A1 (en) | 2006-09-29 | 2008-04-03 | International Truck Intellectual Property Company, Llc | Corrosion resistant bi-metal charge air cooler |
DE102007006664A1 (de) * | 2007-02-10 | 2008-08-14 | Modine Manufacturing Co., Racine | Flachrohr für Wärmetauscher |
JP2012229853A (ja) * | 2011-04-26 | 2012-11-22 | Showa Denko Kk | 熱交換器 |
DE102012211350A1 (de) * | 2012-06-29 | 2014-01-02 | Behr Gmbh & Co. Kg | Flachrohr und Wärmeübertrager mit einem solchen Flachrohr |
-
2018
- 2018-02-06 EP EP18461516.9A patent/EP3521746B1/fr active Active
-
2019
- 2019-02-02 CN CN201910106696.9A patent/CN110118504B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090014164A1 (en) * | 2006-01-19 | 2009-01-15 | Werner Zobel | Flat tube, flat tube heat exchanger, and method of manufacturing same |
EP3623738A1 (fr) * | 2017-07-14 | 2020-03-18 | Japan Climate Systems Corporation | Tube d'échangeur de chaleur |
Also Published As
Publication number | Publication date |
---|---|
EP3521746A1 (fr) | 2019-08-07 |
CN110118504A (zh) | 2019-08-13 |
CN110118504B (zh) | 2023-04-28 |
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