EP3155344A1 - Echangeur de chaleur à plaques - Google Patents
Echangeur de chaleur à plaquesInfo
- Publication number
- EP3155344A1 EP3155344A1 EP15732874.1A EP15732874A EP3155344A1 EP 3155344 A1 EP3155344 A1 EP 3155344A1 EP 15732874 A EP15732874 A EP 15732874A EP 3155344 A1 EP3155344 A1 EP 3155344A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plate
- channel
- group
- scales
- fluid
- 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
- 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
- F28D9/0031—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 paired plates touching each other
- F28D9/0043—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 paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
- F28D9/005—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 paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
-
- 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
- F28F2210/02—Heat exchange conduits with particular branching, e.g. fractal conduit arrangements
-
- 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
- F28F2210/10—Particular layout, e.g. for uniform temperature distribution
Definitions
- the present invention generally relates to heat exchangers.
- the invention relates more particularly to plate heat exchangers.
- a heat exchanger is a device for transferring heat energy from one fluid to another, without mixing them.
- a plate heat exchanger usually comprises a large number of plates arranged facing one another and separated in pairs from a short distance to provide between the plates, circulation spaces of a first fluid, and , alternately with the circulation spaces of the first fluid, circulation spaces of a second fluid sealed relative to the circulation spaces of the first fluid. The heat exchange is thus effected between the first and second fluids via the plates.
- each plate has a corrugated surface to generate a turbulent flow of the fluid flowing between said plate and a neighboring plate.
- the present invention aims to provide a new plate heat exchanger to solve all or part of the problems described above.
- the subject of the invention is a plate heat exchanger comprising at least a first and a second plate arranged parallel to one another and to a covering element, called a cover,
- each of the first and second plates having a fluid circulation circuit, the fluid circulation circuit of the first plate being formed in the face of the first plate facing the second plate, the second plate applying the first plate , and the fluid circulation circuit of the second plate being formed in the face of the second plate facing the cover, the cover coming from the second plate, each circulation circuit comprising:
- each circulation circuit between said inlet and outlet of each circulation circuit, at least one portion, called a ladder, comprising two parallel and spaced apart channels, respectively called first end bar and second end bar, and two other channels, called respectively first amount and second amount, which extend in a direction substantially perpendicular to the bars, the first amount interconnecting the ends of the bars located on the same side, called the first side, and the second amount connecting between they end the bars on the other side, called the second side.
- Such a design of the exchanger according to the invention makes it possible to homogenize the distribution of the fluids and to control the flow regime in the plates by using a ladder-type channel structure, and in particular a multi-type channel structure. -structs.
- Such a scale structure of the or each circuit formed in each plate makes it possible to increase the performance of the heat exchanger compared to those known from the state of the art.
- such a circuit structure makes it possible to obtain a better fluid distribution for a given pressure loss.
- the or each scale comprises one or more other bars parallel to the first and second bars whose ends are connected to the uprights.
- each circuit comprises at least one additional scale, preferably two additional scales, forming with said scale a group of scales, the scales of said group being distributed in a direction substantially parallel to the bars, and said first amounts of the scales of said group of scales are interconnected, on the side of the group, called the third side, defined by said first end bars, by a channel, called the first group channel, which extends in a direction substantially parallel to the bars, and said second uprights of the ladders of said group of ladders are connected together, on the side of the group, called the fourth side, defined by said second end bars, by a channel, called second group channel, which extends in a direction substantially parallel to the bars.
- the first group channel has a passage section which increases in a direction of travel of said first group channel from said second side of a scale towards said first side
- the second channel of group has a passage section which increases in a direction of travel of said second channel group from said first side of a ladder to said second side
- each circuit comprises at least one additional group of scales, and preferably two additional groups of scales, forming with said group of scale a set of groups of scales, the groups of scales of said set being distributed in a direction substantially parallel to the first and second uprights, and said first group channels of the groups of scales of said set of groups are interconnected by a channel, called first set channel which extends according to a direction substantially parallel to the uprights, and said second group channels groups of scales of said set of groups are interconnected by a channel, called second set channel which extends in a direction substantially parallel to the uprights.
- the first overall channel has a passage section which increases in a direction from said second end bar towards said first end bar of a scale of the set of groups
- the second channel of together has a passage section which increases in a direction from said first end bar towards said second end bar of a ladder of the set of groups.
- each circuit comprises at least one set of additional groups of scales, and preferably two sets of additional groups of scales, forming with said set of scale group, a set composition group of scales, the sets of groups of scales of said composition being distributed in a direction substantially parallel to said first and second bars, and the first overall channels are interconnected by a channel, called first composition channel, which extends in a direction substantially parallel to the first and second bars, and the second overall channels are interconnected by a channel, called second composition channel, which extends in a direction substantially parallel to the bars.
- the realization of the circuit in the form of a pattern corresponding to a scale group set composition further enhances the heat exchange.
- the first overall composition channel has a passage section which increases in a direction from said second overall channel of a set of the composition towards said first overall channel of said set
- the second channel of overall composition has a passage section which increases in a direction from said first overall channel of a set of composition to said second overall channel of said set.
- said exchanger comprises at least a third and a fourth plate arranged parallel to one another, each of the third and fourth plates having a fluid circulation circuit, the circulation circuit of the third plate being formed in the face of the third plate facing the fourth plate, the fourth plate applying the third plate, and the fluid circulation circuit of the fourth plate being formed in the face of the third plate; the fourth plate facing the first plate, the first plate applying the fourth plate, each circulation circuit of said third and fourth plates comprising:
- said exchanger comprises first fluid supply means arranged to feed the inlet of the circulation circuit of the first and third plates, and second fluid supply means arranged to feed the inlet.
- the circulation circuit of the second and fourth plates and said exchanger comprises first fluid discharge means arranged to collect the fluid from the circulation circuit outputs of the first and third plates, and second means of fluid evacuation arranged to collect the fluid from the outputs of the circulation circuit of the second and fourth plates.
- each circulation circuit associated with a plate is formed in the thickness of the plate, preferably by etching.
- connection zones between two circuit portions of different orientations are curved.
- the input and the output of the circuit of each plate are situated on two opposite sides of the plate.
- FIG. 1 is a perspective view of a plate heat exchanger according to one embodiment of the invention.
- FIG. 2 is an exploded view of a plate heat exchanger according to one embodiment of the invention.
- FIG. 3 is a perspective view of a plate of the exchanger of FIG. 2;
- FIG. 4 is a front view of the plate of FIG. 3;
- FIG. 5 is a diagram of an alternative circulation circuit of a plate of an exchanger according to one embodiment of the invention.
- the invention relates to a plate heat exchanger 1.
- the exchanger comprises four plates 10, 20, 30, 40 and a covering element, called a cover, which comes into application of the plate 20.
- the exchanger can understand a larger number of plates.
- N being a natural number greater than 4
- the exchanger can be designed so that the n-th plate, with n between 1 and N, has the characteristics of the plate 20 or 40 as described hereinafter, and the n + 1-th plate comprises the characteristics of the plate 10 or 30 as described hereinafter.
- said plates include first and second plates 10, 20 arranged parallel to one another.
- the second plate also extends next to the CVR coverage as explained above.
- Said plates also comprise third and fourth plates 30, 40 arranged parallel to one another.
- the fourth plate 40 also extends opposite the first plate 10.
- Each of the plates 10, 20, 30, 40 has a fluid circulation circuit 100, 200, 300, 400 formed of different channels.
- Each circulation circuit associated with a plate is formed in the thickness of the plate, preferably by etching.
- the face of the other adjacent plate which extends opposite the channels formed in the thickness of said plate closes the peripheral contour of said channels so that the fluid flows well along the channels of the circuit between the inlet and the exit.
- the flat portions of the plate distinct from the recessed portions which form the channels of the circuit of the plate, are arranged to apply against the flat face of the plate opposite so that each channel of the circuit of circulation has in cross section a closed peripheral contour formed on the one hand by the recessed portions of the plate and, on the other hand, by the facing plate, in order to prevent the fluid from spreading between the two plates. outside the circulation circuit thus defined.
- the fluid circulation circuit 100 of the first plate 10 is formed in the face of the first plate 10 facing the second plate 20.
- the flat face of the second plate 20 is applied to the first plate 10 to close the peripheral contour of each channel of the circuit 100.
- the fluid circulation circuit 200 of the second plate 20 is formed in the face of the second plate 20 facing the CVR cover.
- the cover is in the form of a plate whose flat face comes into application of the second plate 20.
- the fluid circulation circuit 300 of the third plate 30 is formed in the face of the third plate 30 and the flat face of the fourth plate 40 comes into application of the third plate 30 to close the peripheral contour of each channel of said circuit.
- the fluid circulation circuit 400 of the fourth plate 40 is formed in the face of the fourth plate 40 opposite the flat face of the first plate 10. Said flat face of the first plate 10 comes into application of the fourth plate 40 to close the peripheral contour of each channel of said circuit.
- each plate can be made of different types of material, depending on the nature of the fluids and the operating conditions. According to a particular embodiment, each plate may be made of stainless steel.
- connection zones between two channels of different orientations are preferably curves.
- each fluid inlet of a fluid circulation circuit is formed by a through orifice formed near an edge of the plate.
- the fluid outlet of said circuit is formed by a through hole formed near an opposite edge of the plate.
- the inlet and outlet of each plate are located on a diagonal of the plate, preferably near two diagonally opposite corners of the plate.
- each circuit has, as detailed below, a Z-type ladder structure.
- Each circulation circuit comprises a fluid inlet and a fluid outlet which are distinct from one another and between said inlet and outlet of each circulation circuit a ladder channel structure ECH1, ECH2, ECH3.
- the circulation circuit described above is that of the plate 20 with reference to FIG. 3.
- the description also applies to the circuit of the plate 40.
- the description also applies to the circulation circuit of each of the plates. 10, 30 with the following feature: the circulation circuits of the plates 10, 30 are oriented in opposition to the circulation circuits 20, 40.
- the circuit of a plate geometrically corresponds to the circuit of the or each directly adjacent plate which would have applied a rotation of 180 ° around an axis passing through the center of the plate and perpendicular to the plate.
- each circuit comprises a plurality of scales which form groups of scales themselves grouped into sets of scales.
- Each scale comprises two parallel channels B1, B2 and spaced apart from each other, called respectively the first end bar B1 and the second end bar B2.
- Each scale also includes two other channels, called respectively first amount M1 and second amount M2.
- These amounts M1, M2 extend in a direction substantially perpendicular to the bars B1, B2.
- the first amount M1 interconnects the ends of the bars B1, B2 located on the same side, called the first side.
- the second amount M2 connects the ends of the bars on the other side, called the second side.
- each scale ECH1 may comprise one or more other bars B3 parallel to the first and second bars B1, B2 whose ends are connected to the uprights M1, M2.
- each scale comprises three bars and in the embodiment illustrated in FIG. 5 each scale of the circuit 100 'comprises eight bars.
- each channel has a section that varies from one end to the other of said channel.
- the variation of each channel section is continuous.
- each circuit comprises two additional scales ECH2, ECH3 forming with said scale ECH1 a group of scales GECH1.
- the scales of said group GECH1 are distributed next to each other in a direction substantially parallel to the bars.
- Said first amounts M1 of the scales of said group of scales GECH are interconnected, on the side of the group defined by said first end bars B1 (third side), by a channel, called the first group channel CG1.
- Said first group channel CG1 extends in a direction substantially parallel to the bars.
- Said second amounts M2 of the scales ECH1, ECH2, ECH3 of said group of scales GECH are connected together, on the side of the group defined by said second end bars B2 (fourth side), by a channel, called second group channel CG2 which extends in a direction substantially parallel to the bars.
- the first group channel CG1 has a passage section that grows along its entire length in a direction of travel of said first group channel from said second side of a ladder to said first side.
- the second group channel CG2 has a passage section which increases along its entire length in a direction of travel of said second group channel from said first side of a ladder to said second side.
- each circuit comprises two groups of additional scales GECH2, GECH3 forming with said group of scale GECH1 a set of groups of scales EG1.
- the groups of scales of said set EG1 are distributed one above the other in a direction substantially parallel to the first and second uprights M1, M2.
- Said first group channels CG1 of the groups of scales of said set of groups EG1 are interconnected by a channel, called first set channel CE1 which extends in a direction substantially parallel to the uprights.
- said second group channels CG2 of the groups of scales of said set of groups EG1 are interconnected by a channel, called second set channel CE2 which extends in a direction substantially parallel to the uprights.
- Said set channel CE1 is located on the side of the set of groups corresponding to the first side of each group.
- Said set channel CE2 is located on the side of the set of groups corresponding to the second side of each group.
- the first set channel CE1 has a passage section which increases along its length in a direction from said second end bar B2 towards said first end bar B1 of a scale of the set of groups EG1.
- the second assembly channel CE2 has a passage section which grows along its entire length in a direction from said first end bar B1 towards said second end bar B2 of a scale of the set of groups EG1. In the example illustrated in FIGS.
- each circuit comprises two additional groups of scales EG2, EG3 forming with said set of scale group EG1 a set composition of group of scales CEG.
- the groups EG1, EG2, EG3 of scale groups of said composition CEG are distributed one beside the other in a direction substantially parallel to said first and second bars B1, B2.
- the first set channels CE1 of said sets EG1, EG2, EG3 of groups of scales are interconnected by a channel, called the first composition channel CC1, which extends in a direction substantially parallel to the first and second bars B1, B2.
- the second set channels CE2 of said sets EG1, EG2, EG3 of groups of scales are interconnected by a channel, called the second composition channel CC2, which extends in a direction substantially parallel to the bars.
- the first composition channel CC1 extends to the group set composition corresponding to the third side of each group set.
- the second composition channel CC2 extends to the group set composition corresponding to the fourth side of each group set.
- the first overall composing channel CC1 has a passage section which increases throughout its length in a direction from said second set channel CE2 of a set of the composition towards said first set channel CE1 of said set.
- the second overall composing channel CCE has a passage section which grows throughout its length in a direction from said first set channel CE1 of a set of the composition towards said second set channel CE2 of said set.
- Said exchanger 1 comprises first fluid feed means AL1 arranged to feed the inlet E1, E3 of the circulation circuit of the first and third plates 10, 30, and second fluid supply means AL2 arranged to supplying the input E2, E4 of the circulation circuit of the second and fourth plates 20, 40.
- Said first supply means comprise a supply duct which extends orthogonally to said plates and feeds the inputs of the plates having the first type of circuit.
- the plates having the second type of circuit also have through orifices OE1, OS1 allowing the inputs, respectively outputs, of neighboring plates to communicate with each other and thus to be fed by said conduit of the first supply means .
- said second supply means comprise a supply duct which extends orthogonally to said plates and feeds the inputs of the plates having the second type of circuit.
- the plates having the first type of circuit also have through holes allowing the inputs, respectively outputs, adjacent plates, which have a circuit of the second type, to communicate with each other and thus to be fed by said conduit feeding the second feed means.
- Said supply means also comprise a fluid circulation system such as a circulator.
- Said exchanger 1 comprises first evacuation means EV1 in fluid arranged to collect the fluid from the outlets S1, S3 of the circulation circuit of the first and third plates 10, 30.
- Said exchanger 1 also comprises second evacuation means EV2 arranged to collect the fluid from the outlet S2 of the circulation circuit of the second plate 20 and from the outlet (not shown) of the circulation circuit of the fourth plates 40.
- Said evacuation means are in the form of a leads orthogonal to the plates and communicating with the outputs of the circuits corresponding. Orifices are provided through the plates to allow the outputs of the same type of circuit to communicate with each other.
- a first configuration corresponds to the configuration of the ducts.
- the second locally concurrent and counter-current configuration corresponds to a configuration (not shown) in which the feed pipe position EV2 will be reversed with the exhaust pipe position AL2 relative to the configuration of Figure 2.
- the perimeter of the plates is lined with a seal that allows compression of all the plates to prevent leakage.
- the plates can be welded together to seal.
- the exchanger comprises a multi-scale pipe network.
- the geometrical parameters of the network guide and control the path of the fluid in order to obtain a homogeneous fluid distribution and a low pressure drop.
- Channel size ranges may vary from application to application.
- the characteristic dimension of the smallest channel that is to say the ladder rungs, may for example be of the order of one millimeter.
- the width of the supply channel (distribution) and the evacuation channel (collection) and the length and width dimensions of each plate are functions of the number of channels and the number of scales.
- the fluid flows through the circulation circuit formed between two plates from one corner to another of all the two plates.
- Each circulation circuit of the first fluid formed between two plates extends between two other circulation circuit of the second fluid and vice versa.
- the first circulation circuits are distributed alternately with the second circulation circuits of the second fluid.
- Each pipe thus allows the fluid flowing along the circuit etched in a plate to pass through the adjacent plate in which is etched a circulation circuit of the other fluid, and to open into the fluid circulation circuit etched in the next plate.
- the fluid passes from one space between two plates to another by jumping a space or the fluid passes from the space n to the space n + 2, where n is the number of spaces formed between the plates.
- the design of the exchanger according to the invention thus makes it possible to obtain a compact and inexpensive exchanger, and having a good heat transfer coefficient.
- the heat exchanger has little heat loss and is flexible because of the possibility of adding or removing plates.
- the number of scales can also be modified during the design of the exchanger.
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)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1455465A FR3022335B1 (fr) | 2014-06-16 | 2014-06-16 | Echangeur de chaleur a plaques |
| PCT/FR2015/051578 WO2015193600A1 (fr) | 2014-06-16 | 2015-06-15 | Echangeur de chaleur à plaques |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3155344A1 true EP3155344A1 (fr) | 2017-04-19 |
| EP3155344B1 EP3155344B1 (fr) | 2018-08-22 |
Family
ID=51485691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP15732874.1A Not-in-force EP3155344B1 (fr) | 2014-06-16 | 2015-06-15 | Echangeur de chaleur à plaques |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3155344B1 (fr) |
| DK (1) | DK3155344T3 (fr) |
| FR (1) | FR3022335B1 (fr) |
| WO (1) | WO2015193600A1 (fr) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10739085B2 (en) * | 2016-07-11 | 2020-08-11 | T.Rad Co., Ltd. | Laminated heat sink core |
| CN108112218B (zh) * | 2017-12-06 | 2019-12-10 | 上海交通大学 | 一种双向流路的分形微槽道冷板 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07225094A (ja) * | 1994-02-10 | 1995-08-22 | Oomiya Kasei Kk | 浸漬型熱交換器 |
| WO1999066279A2 (fr) * | 1998-06-19 | 1999-12-23 | Zess Technologies, Inc. | Echangeur de chaleur a microcanaux |
| US6420061B1 (en) * | 1999-02-23 | 2002-07-16 | Honda Giken Kogyo Kabushiki Kaisha | Fuel cell stack |
| DE102007058182A1 (de) * | 2007-12-04 | 2009-06-10 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | System zur Solarenergienutzung mit Vorrichtung zur Wärmeabgabe an die Umgebung, Verfahren zum Betreiben des Systems sowie Verwendung |
-
2014
- 2014-06-16 FR FR1455465A patent/FR3022335B1/fr not_active Expired - Fee Related
-
2015
- 2015-06-15 DK DK15732874.1T patent/DK3155344T3/en active
- 2015-06-15 EP EP15732874.1A patent/EP3155344B1/fr not_active Not-in-force
- 2015-06-15 WO PCT/FR2015/051578 patent/WO2015193600A1/fr not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| DK3155344T3 (en) | 2018-12-10 |
| WO2015193600A1 (fr) | 2015-12-23 |
| FR3022335A1 (fr) | 2015-12-18 |
| FR3022335B1 (fr) | 2019-04-05 |
| EP3155344B1 (fr) | 2018-08-22 |
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