WO2002054000A1 - Echangeur de chaleur a plaques brasees - Google Patents
Echangeur de chaleur a plaques brasees Download PDFInfo
- Publication number
- WO2002054000A1 WO2002054000A1 PCT/FR2001/004141 FR0104141W WO02054000A1 WO 2002054000 A1 WO2002054000 A1 WO 2002054000A1 FR 0104141 W FR0104141 W FR 0104141W WO 02054000 A1 WO02054000 A1 WO 02054000A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pattern
- sub
- exchanger according
- legs
- wave
- 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.)
- Ceased
Links
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
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0062—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements
- F28D9/0068—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by spaced plates with inserted elements with means for changing flow direction of one heat exchange medium, e.g. using deflecting zones
-
- 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
- F28F3/027—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 with openings, e.g. louvered corrugated fins; Assemblies of corrugated strips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2250/00—Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
- F28F2250/10—Particular pattern of flow of the heat exchange media
- F28F2250/108—Particular pattern of flow of the heat exchange media with combined cross flow and parallel flow
Definitions
- the present invention relates to a brazed plate heat exchanger, the passages of which contain at least one corrugated fin of the type comprising in cross section a repetitive corrugated pattern which extends between two upper and lower extreme planes defined by the plates of the 'exchanger.
- the invention applies in particular to gas-gas cryogenic exchangers of air distillation apparatuses, such as the main heat exchange line of these apparatuses, which cools the incoming air by indirect heat exchange with the cold products. from the distillation column.
- corrugated fins in question are widely used in heat exchangers with brazed plates, which have the advantage of offering a large heat exchange surface in a relatively small volume, and of being easy to manufacture.
- the fluid flows can be co-current, counter-current or crossed.
- FIG. 1 of the accompanying drawings shows in perspective, with partial cutaway, an example of such a heat exchanger, of conventional structure, to which the invention applies. It may in particular be a cryogenic heat exchanger.
- the heat exchanger 1 shown consists of a stack of parallel rectangular plates 2 all identical, which define between them a plurality of passages for fluids to be put in indirect heat exchange relationship.
- these passages are successively and cylindrically passages 3 for a first fluid, 4 " for a second fluid and 5 for a third fluid.
- Each passage 3 to 5 is bordered by closing bars 6 which delimit it, leaving free windows 7 inlet / outlet of the corresponding fluid.
- wave-spacers or corrugated fins 8 serving both as thermal fins, as spacers between the plates, in particular during brazing and to avoid any deformation of the plates when using fluids under pressure. , and for guiding the flow of fluids.
- the stack of plates, closing bars and spacer waves is generally made of aluminum or aluminum alloy and is assembled in a single operation by brazing in the oven.
- Fluid inlet / outlet boxes 9, of generally semi-cylindrical shape, are then welded to the exchanger body thus produced so as to cover the rows of corresponding inlet / outlet windows, and they are connected to pipes 10 for supplying and discharging fluids.
- spacer waves 8 There are various types of spacer waves 8. We can thus cite _ straight fins, with rectilinear generatrices, possibly perforated, so-called “herringbone” fins, with sinuous generatrices, louvered fins, including the wave legs have rows of punctures, and fins with partial offset or "serrated".
- the cross section of the wave can be square, rectangular, triangular, sinusoidal, etc.
- the subject of the invention is a heat exchanger with brazed plates, of the type comprising a stack of parallel plates which define a plurality of circulation passages for fluids of generally flat shape, closing bars which delimit these passages, and corrugated fins arranged in the passages, at least part of the corrugated fins being of the type comprising in cross section a repetitive corrugated pattern which extends between two upper and lower extreme planes defined by two adjacent plates of the exchanger, characterized in that • the pattern comprises a basic wavy pattern comprising wave legs connected by wave vertices and wave bases, this basic pattern being modified by a sub-pattern which defines, between at least certain pairs of wave legs, additional exchange surfaces located at an intermediate level between the two extreme planes.
- the pattern comprises a basic wavy pattern comprising wave legs connected by wave vertices and wave bases, this basic pattern being modified by a sub-pattern which defines, between at least certain pairs of wave legs, additional exchange surfaces located at an intermediate level between the two extreme planes.
- the sub-pattern defines an undulation which extends only over a fraction of the distance which separates the two extreme planes.
- the sub-motif comprises at least one n ⁇ n-vertical part situated at an intermediate level between the two extreme planes.
- the sub-motif further comprises pairs of legs which connect the non-vertical parts alternately to a wave summit and to a wave base. - the legs are vertical.
- the sub-motif comprises at least one additional oblique exchange surface.
- the sub-motif has a V-shaped section.
- the sub-motif comprises a tier adjacent to at least certain legs of the main motif.
- the fin is partially offset.
- the offset distances ensure an offset of the main pattern both relative to itself and relative to the sub-pattern. - the pattern is found every N rows of waves, with N
- At least some parts of at least some bases and / or sub-patterns include a notch on at least one leading and / or trailing edge and on at least part of their height or their width.
- the cross section of the wave is square, rectangular, triangular or sinusoidal.
- the basic wavy pattern is constant over the entire length of the two extreme planes.
- FIG. 2 shows in perspective a serrated fin according to the invention
- Figure 3 is an end view of this fin
- - Figure 4 is an end view of a variant
- FIG. 5 shows in perspective another serrated fin according to the invention
- FIG. 6 is an exploded perspective view of the fin of Figure 5;
- FIG. 7 is an end view of the fin of Figure 5; and
- FIG. 8 is an end view of another serrated fin according to the invention.
- the serrated fin 1 shown in Figures 2 and 3 has a main general direction of wave Dl and includes a large number of adjacent rows of waves all identical 12A, 12B, ..., oriented in a direction D2 perpendicular to the direction dl.
- the directions Dl and D2 are horizontal, the same as the plates 2 of one exchanger.
- Each row of waves 12 has, in cross section perpendicular to D1, a basic pattern M which includes two vertical wave legs 13. With respect to a general direction F of fluid flow in the direction Dl in the passage considered, each leg has an edge leading edge 14 and a trailing edge 15. The legs are connected alternately along their upper edge by a rectangular, planar and horizontal wave vertex 16, and along their lower edge by a wave base 17 also rectangular, flat and horizontal.
- the base pattern M is modified by a sub-pattern M1 constituted by a rectangular projection extending downwards in the middle of each vertex 16 and upwards in the middle of each base 17.
- Each sub-pattern M1 consists of a flat end portion 18 located halfway between the extreme planes defined by the adjacent plates 2, and two vertical tabs 19 which connect the edges thereof to the sum. 16 or the corresponding base 17.
- each sub-pattern forms a niche which penetrates between, the two adjacent legs 1 13.
- This slot defines three additional exchange surfaces, namely a horizontal exchange surface 20 and two vertical exchange surfaces 21.
- the rows 12 are offset with respect to each other in the direction D2, alternately in one direction and in the other.-
- step the distance £ which separates two successive legs 12 (disregarding the thickness e of the thin sheet material which constitutes the wave)
- the offset is p_ / 6 alternately in one direction and the other, while the width of the slot Ml is p / 3.
- each row 12 is connected to the next row 12 by the vertices 16, along line segments 22 of length p / 6, and by the bases 17, along line segments 23 of the same length, p / ⁇ .
- the offset planes are the vertical planes such as PAB and the offset lines, when viewed from above, are designated by 24.
- 1_ denotes the length of each row 12 in the direction Dl, this length being called “tightening length”, and by h the height of the fin.
- the shapes of the various parts of the waves may differ more or less from the theoretical shapes described above, in particular as regards the flatness and the rectangular shape of the facets 13 and 16 to 19, and the verticality of the facets 13 and 19 .
- the patterns M are offset laterally with respect to themselves and with respect to the patterns M1, that is to say that the legs 13 of a given row of tightening 12 each appear between a leg 13 of the adjacent rows and a tab 19 with a neighboring sub-pattern M1. Conversely, the legs 19 of the same row 12 each appear either between two legs 19, or between a leg 19 and a leg 13, adjacent rows 12.
- the separation of the flow is increased at each offset line 24, which increases the temperature difference between the fluid and the fin and thus increases the heat flow exchanged.
- the presence of additional leading edges 20 and 21 also generates vortices within the fluid which promote the transfer of heat by convection to the core of the flow and not by conduction through the boundary layer, which is favorable to heat exchange.
- the variant of Figure 4 differs from that of Figure 3 by a greater depth of the slots Ml, this depth going from h / 2 to 2h / 3 approximately. This reduces the preferential flow zones which escape the beneficial effect of the slots Ml described above.
- Each row has, as previously, the same rectangular base pattern M, comprising vertical legs 13 spaced apart from the step £ and connected alternately by a wave top 16 of width and by a wave base 17 of the same width p_.
- the pattern M is modified by a sub-pattern M1A to M1D.
- - sub-pattern M1A in each undulation open upwards, the lower part of the right leg 13 is deformed by a step which has a horizontal part 24 located at mid-height of the leg and a vertical part 25 located at mid -distance between this leg and the other leg of the ripple.
- the lower half of the leg and the right half of the adjacent wave base are removed, as shown in phantom.
- each sub-pattern Ml is triangular and no longer rectangular or square. It thus introduces into each wave two oblique leading edges 25, symmetrical with respect to the vertical plane of symmetry P of the wave.
- the height of the triangle is h / 2, but, as before, it can have a different value, in particular ' greater than h / 2 to reduce the preferential flow zones.
- the presence of the sub-patterns M1 causes passage restrictions at the level of the offset lines, and therefore pressure drops.
- This pressure drop may possibly be reduced by providing notches judiciously placed in at least certain leading and / or trailing edges of the patterns M and / or M1. These notches will preferably be located opposite the leading and / or trailing edges of the sub-patterns M1, or in these, as indicated by dashed lines at 26 in FIG. 2.
- fin whatever the type of fin, it can be made from either a full sheet, or a perforated sheet or otherwise provided with lights.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP01989656A EP1348100B1 (fr) | 2000-12-28 | 2001-12-21 | Echangeur de chaleur a plaques brasees |
| JP2002554461A JP3974526B2 (ja) | 2000-12-28 | 2001-12-21 | ろう付け板を有する熱交換器 |
| US10/250,434 US7059397B2 (en) | 2000-12-28 | 2001-12-21 | Heat exchanger with brazed plates |
| DE60118029T DE60118029T2 (de) | 2000-12-28 | 2001-12-21 | Wärmetauscher mit gelöteten platten |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR00/17178 | 2000-12-28 | ||
| FR0017178A FR2819048B1 (fr) | 2000-12-28 | 2000-12-28 | Ailette ondulee pour echangeur de chaleur a plaques brasees et echangeur de chaleur correspondant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2002054000A1 true WO2002054000A1 (fr) | 2002-07-11 |
Family
ID=8858307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2001/004141 Ceased WO2002054000A1 (fr) | 2000-12-28 | 2001-12-21 | Echangeur de chaleur a plaques brasees |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7059397B2 (fr) |
| EP (1) | EP1348100B1 (fr) |
| JP (1) | JP3974526B2 (fr) |
| CN (1) | CN1284958C (fr) |
| DE (1) | DE60118029T2 (fr) |
| FR (1) | FR2819048B1 (fr) |
| WO (1) | WO2002054000A1 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2895493A1 (fr) * | 2005-12-22 | 2007-06-29 | Air Liquide | Nouvelles ondes d'echange de chaleur et leurs applications |
| FR3071595A1 (fr) * | 2017-09-28 | 2019-03-29 | Elyt 3 | Echangeur air/air a double flux a contre-courant |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2471969A1 (fr) * | 2004-06-23 | 2005-12-23 | Lionel Gerber | Echangeur de chaleur pour utilisation dans une machine a glace |
| US7434765B2 (en) * | 2005-02-16 | 2008-10-14 | The Boeing Company | Heat exchanger systems and associated systems and methods for cooling aircraft starter/generators |
| FR2887020B1 (fr) * | 2005-06-09 | 2007-08-31 | Air Liquide | Echangeur de chaleur a plaques avec structure d'echange formant plusieurs canaux dans un passage |
| JP4881583B2 (ja) * | 2005-06-27 | 2012-02-22 | 株式会社豊田自動織機 | パワーモジュール用ヒートシンク |
| EP1996891B1 (fr) * | 2006-03-13 | 2011-08-24 | Volvo Lastvagnar AB | Echangeur de chaleur pour gaz de système de recirculation des gaz d'échappement |
| JP4818044B2 (ja) * | 2006-09-28 | 2011-11-16 | 三洋電機株式会社 | 熱交換器の製造方法 |
| JP2009204182A (ja) * | 2008-02-26 | 2009-09-10 | Denso Corp | 熱交換器 |
| FR2938904B1 (fr) * | 2008-11-24 | 2012-05-04 | Air Liquide | Echangeur de chaleur |
| US8726691B2 (en) * | 2009-01-30 | 2014-05-20 | Praxair Technology, Inc. | Air separation apparatus and method |
| US20100192628A1 (en) * | 2009-01-30 | 2010-08-05 | Richard John Jibb | Apparatus and air separation plant |
| US20100192629A1 (en) * | 2009-01-30 | 2010-08-05 | Richard John Jibb | Oxygen product production method |
| KR100938802B1 (ko) * | 2009-06-11 | 2010-01-27 | 국방과학연구소 | 마이크로채널 열교환기 |
| FR2950682B1 (fr) * | 2009-09-30 | 2012-06-01 | Valeo Systemes Thermiques | Condenseur pour vehicule automobile a integration amelioree |
| US9303925B2 (en) | 2012-02-17 | 2016-04-05 | Hussmann Corporation | Microchannel suction line heat exchanger |
| JP6305412B2 (ja) * | 2012-10-09 | 2018-04-04 | リンデ アクチエンゲゼルシャフトLinde Aktiengesellschaft | プレート式熱交換器における光導波路を用いた温度測定 |
| DE212015000203U1 (de) * | 2014-08-21 | 2017-04-05 | Trane International, Inc. | Wärmetauscherspule mit versetzten Lamellen |
| CN106762018A (zh) * | 2016-12-05 | 2017-05-31 | 蚌埠市国乐汽配有限公司 | 一种箱式机油冷却器 |
| CN111433552A (zh) * | 2017-11-27 | 2020-07-17 | 达纳加拿大公司 | 增强的传热表面 |
| DE102018003479A1 (de) * | 2018-04-27 | 2019-10-31 | Linde Aktiengesellschaft | Plattenwärmetauscher, verfahrenstechnische Anlage und Verfahren |
| WO2020245876A1 (fr) * | 2019-06-03 | 2020-12-10 | 三菱電機株式会社 | Échangeur de chaleur du type à plaques et dispositif de transfert de chaleur |
| CN114383445A (zh) * | 2020-10-20 | 2022-04-22 | 浙江三花汽车零部件有限公司 | 换热器 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3016921A (en) * | 1958-04-14 | 1962-01-16 | Trane Co | Heat exchange fin element |
| DE3227146A1 (de) * | 1982-07-21 | 1984-01-26 | Schäfer Werke GmbH, 5908 Neunkirchen | Waermetauscher, insbesondere plattenheizkoerper |
| EP0106262A1 (fr) * | 1982-10-07 | 1984-04-25 | Schäfer Werke GmbH | Echangeur thermique en particulier radiateur |
| DE9101494U1 (de) * | 1991-02-09 | 1991-05-02 | Buderus Heiztechnik GmbH, 6330 Wetzlar | Plattenheizkörper |
| US5636685A (en) * | 1996-08-16 | 1997-06-10 | General Motors Corporation | Plate and fin oil cooler with improved efficiency |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1216306A (en) * | 1967-03-31 | 1970-12-16 | Marston Excelsior Limiited | Plate-type heat exchangers |
| US3451473A (en) * | 1967-04-11 | 1969-06-24 | United Aircraft Corp | Heat exchanger construction |
| GB1601952A (en) * | 1977-02-17 | 1981-11-04 | Covrad Ltd | Apparatus for making corrugated sheet material |
| US4246963A (en) * | 1978-10-26 | 1981-01-27 | The Garrett Corporation | Heat exchanger |
| US5107922A (en) * | 1991-03-01 | 1992-04-28 | Long Manufacturing Ltd. | Optimized offset strip fin for use in contact heat exchangers |
| US6247523B1 (en) * | 1999-07-30 | 2001-06-19 | Denso Corporation | Exhaust gas heat exchanger |
| US6729388B2 (en) * | 2000-01-28 | 2004-05-04 | Behr Gmbh & Co. | Charge air cooler, especially for motor vehicles |
-
2000
- 2000-12-28 FR FR0017178A patent/FR2819048B1/fr not_active Expired - Fee Related
-
2001
- 2001-12-21 CN CNB018213693A patent/CN1284958C/zh not_active Expired - Fee Related
- 2001-12-21 JP JP2002554461A patent/JP3974526B2/ja not_active Expired - Fee Related
- 2001-12-21 US US10/250,434 patent/US7059397B2/en not_active Expired - Fee Related
- 2001-12-21 EP EP01989656A patent/EP1348100B1/fr not_active Expired - Lifetime
- 2001-12-21 WO PCT/FR2001/004141 patent/WO2002054000A1/fr not_active Ceased
- 2001-12-21 DE DE60118029T patent/DE60118029T2/de not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3016921A (en) * | 1958-04-14 | 1962-01-16 | Trane Co | Heat exchange fin element |
| DE3227146A1 (de) * | 1982-07-21 | 1984-01-26 | Schäfer Werke GmbH, 5908 Neunkirchen | Waermetauscher, insbesondere plattenheizkoerper |
| EP0106262A1 (fr) * | 1982-10-07 | 1984-04-25 | Schäfer Werke GmbH | Echangeur thermique en particulier radiateur |
| DE9101494U1 (de) * | 1991-02-09 | 1991-05-02 | Buderus Heiztechnik GmbH, 6330 Wetzlar | Plattenheizkörper |
| US5636685A (en) * | 1996-08-16 | 1997-06-10 | General Motors Corporation | Plate and fin oil cooler with improved efficiency |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2895493A1 (fr) * | 2005-12-22 | 2007-06-29 | Air Liquide | Nouvelles ondes d'echange de chaleur et leurs applications |
| WO2007074290A1 (fr) * | 2005-12-22 | 2007-07-05 | L'air Liquide Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Nouvelles ondes d'echange de chaleur et leurs applications |
| FR3071595A1 (fr) * | 2017-09-28 | 2019-03-29 | Elyt 3 | Echangeur air/air a double flux a contre-courant |
Also Published As
| Publication number | Publication date |
|---|---|
| US7059397B2 (en) | 2006-06-13 |
| EP1348100B1 (fr) | 2006-03-15 |
| FR2819048B1 (fr) | 2005-08-19 |
| DE60118029T2 (de) | 2006-12-28 |
| DE60118029D1 (de) | 2006-05-11 |
| JP2004517293A (ja) | 2004-06-10 |
| EP1348100A1 (fr) | 2003-10-01 |
| JP3974526B2 (ja) | 2007-09-12 |
| CN1483134A (zh) | 2004-03-17 |
| CN1284958C (zh) | 2006-11-15 |
| FR2819048A1 (fr) | 2002-07-05 |
| US20040144525A1 (en) | 2004-07-29 |
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