• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The present invention relates to a spacer (1) for heat exchanger, said spacer (1) being intended to be disposed between exchange walls (3) within said heat exchanger, said spacer (1) having fins (5). ) connecting the exchange walls (3), said fins (5) extending a certain length (La) in the direction of flow (100) of a fluid passing through said spacer (1), said fins (5) ) being arranged on the one hand in rows perpendicular to the flow of the fluid flow and on the other hand staggered, within each row, the fins (5) being parallel to each other, of identical length (La) and spaced apart a spacing (E) constant, the insert (1) being formed of at least two sections (A, B, C, D), each section (A, B, C, D) having a row of fin or grouping together at least two contiguous rows of fins of equal length (La) and spacing (E), and at least the length (La) of fins (5) being different from one section (A, B, C, D) to another.
    公开号:FR3027662A1
    申请号:FR1460361
    申请日:2014-10-28
    公开日:2016-04-29
    发明作者:Nicolas Francois；Serge Russeil；Ephraim Toubiana；Daniel Bougeard
    申请人:Valeo Systemes Thermiques SAS；
    IPC主号:
    专利说明:

    [0001] Intercalaire heat exchanger. The present invention relates to the field of heat exchangers and more particularly interleaves present within said heat exchangers.
    [0002] In the field of heat exchangers, in particular heat exchangers between two fluids, it is known to equip them with spacers that allow the homogenization of a fluid and the increase of heat exchange surfaces.
    [0003] For example, in heat exchangers with tubes or plates, a first fluid circulates within said tubes or plates and a second fluid circulates between said tubes or plates. The spacers are placed between the tubes or plates in the flow of the second fluid to homogenize and increase the heat exchange surfaces with the tubes or plates.
    [0004] The spacers may more particularly be composed of rows of fins arranged parallel to the fluid flow and connecting two walls between which said fluid flows. Nevertheless, the presence of these spacers can generate pressure losses in the flow of fluid therethrough which can adversely affect said circulation and therefore the performance of the heat exchanger. One of the aims of the invention is therefore to at least partially overcome the disadvantages of the prior art and to propose improved spacers.
    [0005] The present invention therefore relates to a spacer for a heat exchanger, said spacer being intended to be disposed between exchange walls within said heat exchanger, said spacer having fins connecting the exchange walls, said fins extending from a certain length in the direction of flow of a fluid passing through said spacer, said fins being arranged on the one hand in rows perpendicular to the fluid flow flow and on the other hand staggered, within each row, the fins being parallel to each other, of identical length and spaced from a constant spacing, the spacer being formed of at least two sections, each section having a row of fins or grouping at least two contiguous rows of fin length and spacing identical, and at least the length of the fins being different from one section to another. The fact that the length of the fins are different from one section to another, makes it possible to modulate the pressure losses of the fluid flow flow within the interlayer and to keep them as low as possible and this harm to the changes physical properties of the fluid. It is thus possible to obtain at equivalent volume a more powerful heat exchanger (capable of exchanging more heat energy) with reduced pressure losses.
    [0006] According to one aspect of the invention, the length of the fins of a section i is defined with respect to the length of the fins of a contiguous section i-1, according to the following arithmetic-geometric sequence: La (= Rg x La 1 + Ra where Rg is a reason between 0.6 and 1.5 and Ra is a reason between -5 and 5 and where i is a natural number defining a given section According to another aspect of the invention, the spacing between two fins also differs from section to section.
    [0007] According to another aspect of the invention, at least one section comprises a multitude of rows of fins. According to another aspect of the invention, the length of the sections is identical. According to another aspect of the invention, the length of the sections differs from section to section. According to another aspect of the invention, at least one section comprises a single row of fins and the length of said section is equal to the length (La) of said fin. According to another aspect of the invention, the length of the fins from one section to another decreases along the flow of fluid circulation.
    [0008] According to another aspect of the invention, the length of the fins from one section to another increases along the flow of fluid circulation. According to another aspect of the invention, the spacer is composed of crenellations whose side walls form the fins and the upper and lower walls are intended to come into contact with the exchange walls between which the fluid flows. The present invention also relates to a heat exchanger comprising at least one interlayer as described above.
    [0009] Other features and advantages of the invention will appear more clearly on reading the following description, given by way of illustrative and non-limiting example, and the appended drawings in which: FIG. 1 shows a schematic representation in perspective of FIG. 2 shows a diagrammatic representation in plan view of a spacer portion according to a first embodiment, FIG. 3 shows a schematic representation in plan view of a spacer portion according to a first embodiment. FIG. a second embodiment, Figure 4 shows a schematic representation in perspective of a sectional insert portion in section along its length, Figure 5 shows a schematic representation in front of a spacer.
    [0010] In the different figures, the identical elements bear the same reference numbers. Figure 1 shows a schematic representation of a portion of a heat exchanger. More specifically, Figure 1 shows a portion of an insert 1 placed between two exchange walls 3 between which flows a fluid, for example air. The flow flow of the fluid is represented in the various figures by arrows 100. The exchange walls 3 between which the fluid circulates, may for example be external walls of flat tubes or exchange plates in which can flow a second fluid. The insert 1 comprises fins 5 connecting the exchange walls 3. The fins 5 extend by a certain length La in the direction of flow of a fluid 100 passing through said insert 1. The fins 5 are arranged in rows perpendicular to the fluid flow. These rows are itself arranged in staggered relation to each other. Within each row, the fins 5 are parallel to each other, of identical length and spaced from a constant spacing E, the interlayer 1 is formed of at least two sections A, B each section A, B comprising a row of fins 5 or grouping at least two adjacent rows of fin 5 of length L and spacing E identical. In addition the length of the fins 5 differs from one section A, B to another. Along its path, the physical properties of the fluid changes because of its temperature variation and therefore the pressure losses also change. The fact that the length La of the fins 5 are different from one section A, B to another, makes it possible to modulate the pressure losses of the flow of fluid flow within the interlayer and to keep them as low as possible and this despite the changes in the physical properties of the fluid. It is thus possible to obtain, at equivalent volume, a more powerful heat exchanger (capable of exchanging more heat energy) with reduced head losses.
    [0011] As shown in Figure 5, the spacer 1 may be composed of crenellations whose side walls form the fins 5 and whose upper and lower walls 7 are intended to come into contact with the exchange walls 3 between which the fluid flows.
    [0012] Preferably, the length Lai of the fins 5 of a section iA, B, C, D is defined with respect to the length Lai_i of the fins 5 of a section i-1A, B, C, D contiguous, according to the following arithmetic-geometric sequence: Lai = Rgx Lai i + Ra where Rg is a reason between 0.6 and 1.5 and Ra is a reason between -5 and 5 and where i is a natural number defining a section (A, B, C, D) given. La, here corresponds to the desired length of the fin 5 and Lai corresponds to the length of the previous fin 5. According to a first embodiment, illustrated in Figures 1 and 2, the fins 5 of the same row may also have a different spacing E between two sections A, B. For example, in the fluid flow direction 100, the gap E may increase between two consecutive sections. On the other hand, the gap can also decrease between two consecutive sections. In the exemplary embodiment illustrated in FIGS. 1 and 2, at least one section A, B has a plurality of fin rows 5. In the example shown in FIG. 2, the sections A, B have a length Ls identical. However, the sections A, B may also have lengths Ls different from one section A, B to another as illustrated in FIG.
    [0013] According to a second embodiment illustrated in FIG. 3, at least one section A, B, C, D has only one row of fins 5. in this case, the length Ls of section A, B , C, D is equal to the length La of the fin 5. In the example illustrated in Figure 3, the insert 1 has four sections A, B, C, D and each of which comprises only a single row of fin 5. Further in this example, the spacing E between the fins 5 is constant from one section A, B, C, D to another. As shown in FIGS. 1, 2 and 3, and in more detail in FIG. 4, the lengths La of the fins 5 of each section A, B, C, D decrease along the flow of fluid flow within the However, it is also quite possible to imagine, without departing from the scope of the invention, that the lengths of the fins 5 of each section A, B, C, D increase along the flow of the fluid circulation. within tab 1.
    [0014] Thus, it is clear that the interlayer according to the invention due to the variability of the lengths of the fins 5, the possible variation of the spacing between said fins 5, as well as the possibility of defining sections with characteristics The components, which can differ from one section to another, can be adapted to variations in the physical properties of the fluid because of its temperature changes, in order to increase the power of the heat exchanger while limiting the losses of loads.
    权利要求:
    Claims (11)
    [0001]
    REVENDICATIONS1. Intercalaire (1) for heat exchanger, said spacer (1) being intended to be disposed between exchange walls (3) within said heat exchanger, said spacer (1) having fins (5) connecting the walls of the heat exchanger exchange (3), said fins (5) extending a certain length (La) in the direction of flow (100) of a fluid passing through said spacer (1), said fins (5) being arranged to a part in rows perpendicular to the fluid circulation flow and secondly staggered, within each row, the fins (5) being parallel to each other, of identical length (La) and spaced apart ( E) constant, characterized in that the insert (1) is formed of at least two sections (A, B, C, D), each section (A, B, C, D) having a row of fin or comprising at least two contiguous rows of fins of the same length (La) and spacing (E), and that at least the length (La) of the fins (5) is different from one section (A, B, C, D) to another.
    [0002]
    2. Intercalary (1) according to the preceding claim, characterized in that the length (Lai) fins (5) of a section i (A, B, C, D) is defined with respect to the length (Lai) of fins (5) of a contiguous section i-1, according to the following arithmetic-geometric sequence: La i = Rgx The i + Ra where Rg is a reason between 0.6 and 1.5 and Ra is a reason between -5 and 5 and where i is a natural integer defining a given section (A, B, C, D).
    [0003]
    3. spacer (1) according to one of the preceding claims, characterized in that the spacing (E) between two fins (5) also differs from one section (A, B, C, D) to another.
    [0004]
    4. Spacer (1) according to one of the preceding claims, characterized in that at least one section (A, B, C, D) comprises a plurality of rows of fins (5).
    [0005]
    5. Intercalary (1) according to the preceding claim, characterized in that the length (LS) of the sections (A, B, C, D) is identical.
    [0006]
    6. spacer (1) according to claim 5, characterized in that the length (LS) sections (A, B, C, D) differs from one section (A, B, C, D) to another.
    [0007]
    7. Spacer (1) according to one of claims 1 to 3, characterized in that at least one section (A, B, C, D) has a single row of fins (5) and the length (Ls ) of said section (A, B, C, D) is equal to the length (La) of said fin (5).
    [0008]
    8. spacer (1) according to one of the preceding claims, characterized in that the length (La) of the fins (5) of a section (A, B, C, D) to another, decreases along the flow circulation (100) fluid.
    [0009]
    9. Spacer (1) according to one of claims 1 to 7, characterized in that the length (La) of the fins (5) of a section (A, B, C, D) to another, increases along flow flow (100) fluid.
    [0010]
    10. Intercalary (1) according to one of the preceding claims, characterized in that it is composed of crenellations whose side walls form the fins (5) and the upper and lower walls (7) are intended to come into contact with exchange walls (3) between which flows the fluid.
    [0011]
    11. Heat exchanger characterized in that it comprises at least one spacer (1) according to one of the preceding claims.
    类似技术:
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    同族专利:
    公开号 | 公开日
    FR3027662B1|2019-03-22|
    EP3015807A1|2016-05-04|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JP2002174495A|2000-12-07|2002-06-21|Matsushita Electric Ind Co Ltd|Heat exchanger|
    JP2002228265A|2001-01-31|2002-08-14|Denso Corp|Heat exchanger for water heater|
    WO2014037122A1|2012-09-10|2014-03-13|Valeo Systemes Thermiques|Heat exchanger insert|US20170241721A1|2016-02-19|2017-08-24|Enzotechnology Corp.|Heat sink with designed thermal conudctor arrangement|
    FR3058510B1|2016-11-10|2019-08-16|Safran|HEAT EXCHANGER|
    FR3099557B1|2019-08-01|2021-07-30|Air Liquide|Natural gas liquefaction process with improved circulation of a mixed refrigerant stream|
    FR3099563B1|2019-08-01|2021-07-30|Air Liquide|Heat exchanger with passage configuration and improved heat exchange structures|
    法律状态:
    2015-11-02| PLFP| Fee payment|Year of fee payment: 2 |
    2016-04-29| PLSC| Publication of the preliminary search report|Effective date: 20160429 |
    2016-10-28| PLFP| Fee payment|Year of fee payment: 3 |
    2017-10-31| PLFP| Fee payment|Year of fee payment: 4 |
    2018-10-30| PLFP| Fee payment|Year of fee payment: 5 |
    2019-10-31| PLFP| Fee payment|Year of fee payment: 6 |
    2020-10-30| PLFP| Fee payment|Year of fee payment: 7 |
    2021-10-29| PLFP| Fee payment|Year of fee payment: 8 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1460361A|FR3027662B1|2014-10-28|2014-10-28|THERMAL EXCHANGER INTERCONNECT.|
    FR1460361|2014-10-28|FR1460361A| FR3027662B1|2014-10-28|2014-10-28|THERMAL EXCHANGER INTERCONNECT.|
    EP15191989.1A| EP3015807A1|2014-10-28|2015-10-28|Heat exchanger spacer|
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