EP0393107A1 - Recuperateur d'energie. - Google Patents
Recuperateur d'energie.Info
- Publication number
- EP0393107A1 EP0393107A1 EP89900271A EP89900271A EP0393107A1 EP 0393107 A1 EP0393107 A1 EP 0393107A1 EP 89900271 A EP89900271 A EP 89900271A EP 89900271 A EP89900271 A EP 89900271A EP 0393107 A1 EP0393107 A1 EP 0393107A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- plates
- energy
- module
- aforementioned
- channels
- 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
- F28D9/0081—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 a single plate-like element ; the conduits for one heat-exchange medium being integrated in one single plate-like 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
- F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
- F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
- F28F13/12—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by creating turbulence, e.g. by stirring, by increasing the force of circulation
-
- 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
- F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
- F28F21/065—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material the heat-exchange apparatus employing plate-like or laminated conduits
Definitions
- the subject of the present invention is a new energy recuperator, which finds particular application in ventilation or air conditioning installations for loudspeakers, such as for example offices, cinema, theater and conference halls, sports halls, individual dwellings. or collective, factories, etc., whose indoor temperature is different from the outdoor temperature.
- recuperators have therefore been designed, in particular to reduce the energy losses resulting from the use of such ventilation or air conditioning systems.
- the basic idea is to recover part of the lost calories transported by the air leaving the enclosure, to transfer it to the air entering the enclosure.
- Such known recuperators generally comprise one or more energy exchanger modules, capable of being crossed by two gas streams circulating in a crossed fashion, and intended for the transfer of part of the calories from one of said gas streams to the other. .
- Many designs have been envisaged for the production of these exchangers, the problem consisting in finding materials, and a configuration guaranteeing an optimal yield (quantity of energy recovered and transferred), and a satisfactory overall mechanical resistance.
- the solution adopted for the production of these energy exchanger modules consists of assembling plates having an internal configuration allowing the cross circulation of the two gas streams.
- a module comprising two sets of plates joined together alternately, each plate being provided with channels internal gas circulation extending substantially longitudinally, parallel and unidirectionally ent inside said plate, the channels of the plates of one of the assemblies being oriented in the same direction, forming with the direction of orientation of the channels of the plates of the other of the two sets at a predetermined angle.
- such plates generally comprise two external walls, between which the aforementioned channels are defined, and it is understood that the two gas streams circulating, in a crossed fashion, in two consecutive plates, are in fact separated by a double thickness, which decreases the efficiency of the exchanger.
- the object of the present invention is to solve the aforementioned drawbacks by proposing an energy recuperator of a new design, with improved efficiency, and the mechanical strength of which remains satisfactory.
- the solution in accordance with the present invention, to solve this technical problem consists of a recuperator of the aforementioned type, characterized in that a certain number of plates of the energy exchanger module have at least one recess, obtained in particular by cutting, and allowing thus a better exchange of energy between the gas streams.
- all the plates of one of the assemblies forming said energy exchanger module have at least one such recess.
- all the plates constituting the energy exchanger module have at least one such recess; two consecutive plates being further separated by a sheet made of a gas-impermeable material, chosen in particular according to its thermal characteristics, possibly bonded to one of these two plates.
- the exchanger module further comprises means for modifying the flow rate of the gas streams and / or for creating a turbulence of the gases.
- the through these means being preferably arranged at the recessed parts of the plates.
- the aforementioned means for modifying the flow rate of the gas streams and / or for creating a turbulence of the gases passing through the module are formed by an element of the same constitution as the plates, which can be attached or obtained during the aforementioned cutting of the plates aiming to create at least one recess.
- FIG. 1 is a general view in principle, in perspective with cutaway, of an energy exchanger module of a cross flow recuperator according to the prior art
- FIG. 2 is a partial exploded view of an energy exchanger module of a recuperator according to a first embodiment of the invention, showing three plates, one of which is hollowed out;
- FIG. 3a to 3d illustrate four alternative embodiments of a hollow plate as shown in Figure 2 or in Figure 4;
- FIG. 1 therefore shows an energy exchanger module of a recuperator according to the state of the art closest to the invention.
- the energy recuperators known up to now generally comprise one or more energy exchanger modules, arranged and assembled according to arrangements vary.
- the module M shown in Figure 1 comprises two sets of plates 1a, 1b, joined together, for example by gluing or by means of threaded rods passing through all the plates, and bolts.
- Each plate 1a, 1b has two plane external walls 2, 3, identical and spaced, extending substantially parallel, between which are arranged a set of walls 4a, 4b, longitudinal, parallel and spaced forming a network of internal channels 5a, 5b, gas circulation extending unidirectly inside of each plate 1a, 1b, respectively.
- the walls 4a, 4b are arranged, in the example shown, transversely to the external walls 3, 4, of each plate, in order to ensure better rigidity.
- the walls 4 can also be arranged by forming any acute angle with the outer walls 3, 4, mentioned above.
- the plates 1a, 1b can be made of various materials, but, for reasons of rigidity, it will be preferred to use rigid plastics, such as for example polyethylene or polycarbonate. In that case.
- the plates can be obtained relatively easily by extrusion. As shown in FIG. 1, the plates 1a, 1b, are assembled in an alternating manner, the channels 5a of the plates 1a being oriented in a direction which is substantially normal to the direction of orientation of the channels 5b of the plates 1b.
- iL is only an embodiment given by way of example, since the angle formed between the directions of orientation of the channels 5a and 5b can of course be different from a right angle.
- the module M is capable of being crossed by two gas streams circulating in a crossed fashion, in directions A and B which correspond to the respective directions of orientation of the channels 5a, 5b, of the plates 1a, 1b.
- This module therefore allows the recovery and transfer of calories from one of the gas streams, for example hot stale air leaving an overheated enclosure, to the other gas stream, for example fresh air entering the pregnant. It is obvious that the two gas streams must in no case be brought into contact, and provision will therefore be made for sealing means of the module, well known to those skilled in the art.
- all the sheets 1a, 1b, forming the module M are identical, and in the example shown have the shape of a square.
- the plates will have a general shape of a regular polygon symmetrical with respect to a diagonal, for example a square, a hexagon or a rhombus, the production of the module thus requiring the manufacture of only one type of plates.
- the plates can also be different, for example in the form of a rectangle.
- the originality of the invention consists in that a certain number of plates of the exchanger module M have at least one recess, obtained in particular by cutting, which will allow better heat exchange between the gas streams, by eliminating the double thickness. mentioned above.
- the thermal energy savings will be all the more important as said recesses will be important.
- all the plates 1b of one of the two above-mentioned assemblies forming the exchanger module H have at least one recess E, extending over a major part. of the plate surface.
- this recess which will preferably be obtained by cutting a plate 1b, as described with reference to FIG. 1, can be quite arbitrary, for example circular (FIG. 2), rectangular, square, polygonal, etc.
- the number of recesses can be arbitrary and will essentially depend on the dimensions of the plate.
- these hollowed parts obtained by cutting in the case where the plates are identical, one will choose symmetrical shapes with respect to the plane perpendicular to said plates, containing the diagonal relative to which said plates are symmetrical.
- This embodiment is particularly simple since it only requires the use of two types of plates. It also makes it possible to easily obtain the desired seal both at the level of the entire recuperator and at the level of the plate recesses.
- all the plates 1a, 1b, constituting the heat exchanger module M, with the exception of the end plates (not shown) have at least one recess E; two consecutive sheets 1a, 1b, being separated by a sheet 7 covering the above-mentioned recess (s), and made of a gas-impermeable material, chosen according to its thermal characteristics, for example treated or untreated paper, treated or untreated fabric , nonwoven, metallized or non-metallized plastic films, or metallic films, in particular aluminum.
- This sheet 7 can be inserted between two sheets, then sealed, for example by gluing or welding, to one of the two sheets, during the assembly of the sheets in module, or previously sealed, for example by gluing or welding, on one of these plates before assembly.
- the nature of the sheet 7 can also be chosen as a function of specific objectives relating to the separation of the gas streams. Thus, one can choose a sheet impermeable to gases, but which will allow moisture to pass through, to intervene in particular on the humidity level.
- This particular aspect of the invention is not limited to the energy exchanger module of the type represented in FIG. 1, and which constitutes the closest state of the art to the invention, but can be transposed to any type. energy exchanger module, and in particular to exchangers comprising rigid U-shaped plates.
- the sheet 7 of treated paper is sealed by bonding, before assembly, on one of the external walls of each plate 1a, 1b, so that a single wall (in fact constituted by The sheet 7 ) separates two successive plates 1a, 1b.
- the recuperator module M also comprises means for modifying the flow rate of the gas streams and for creating turbulence of the gases passing through it, and these means are preferably arranged at the level of recessed portions E of the sheets.
- the module are preferably formed by an element of the same constitution as a plate, that is to say comprising two parallel external walls in which there is a network of internal channels.
- These means can be shaped differently from the plates, and produced for example in the form of a strip or bar of cellular material, whether or not honeycombed.
- FIGS. 3a to 3d show four alternative embodiments of hollow plates comprising such means respectively referenced 8a to 8d.
- these means can be added (8b) and positioned during the assembly of the plates intended to constitute the module, or obtained during the cutting of the plate (8a, 8c, 8d ) .
- the shape and arrangement of the elements 8a, 8b, 8c, 8d, can be any, for example straight line (8b, 8c) or inverted V (8a).
- an energy recovery teL can be used in particular as a condenser, for example in combination with machines such as a dryer.
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)
- Separation By Low-Temperature Treatments (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
- Materials For Medical Uses (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT89900271T ATE88557T1 (de) | 1987-12-10 | 1988-12-09 | Energierueckgewinnungsvorrichtung. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8717238 | 1987-12-10 | ||
FR8717238A FR2624594B1 (fr) | 1987-12-10 | 1987-12-10 | Recuperateur d'energie |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0393107A1 true EP0393107A1 (fr) | 1990-10-24 |
EP0393107B1 EP0393107B1 (fr) | 1993-04-21 |
Family
ID=9357733
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89900271A Expired - Lifetime EP0393107B1 (fr) | 1987-12-10 | 1988-12-09 | Recuperateur d'energie |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0393107B1 (fr) |
AT (1) | ATE88557T1 (fr) |
DE (1) | DE3880500D1 (fr) |
FR (1) | FR2624594B1 (fr) |
NO (1) | NO168730C (fr) |
WO (1) | WO1989005433A1 (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0637727A3 (fr) * | 1993-08-05 | 1997-11-26 | Corning Incorporated | Echangeur de chaleur à courants croisés et méthode de fabrication |
US6983788B2 (en) | 1998-11-09 | 2006-01-10 | Building Performance Equipment, Inc. | Ventilating system, heat exchanger and methods |
AUPP329298A0 (en) * | 1998-04-29 | 1998-05-21 | Morris, Geoffrey R. | Heat exchange assembly |
GB2434633A (en) * | 2006-01-27 | 2007-08-01 | Boc Group Plc | Freeze dryer shelf comprising a corrugated sheet defining a flow channel |
US8162042B2 (en) | 2007-01-22 | 2012-04-24 | Building Performance Equipment, Inc. | Energy recovery ventilator with condensate feedback |
NL1034648C2 (nl) * | 2007-11-07 | 2010-04-20 | Marcellus Franciscus Maria Ter Beek | Water/lucht warmtewisselaar. |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2290646A1 (fr) * | 1974-11-06 | 1976-06-04 | Commissariat Energie Atomique | Echangeur a plaques |
FR2469684A1 (fr) * | 1979-11-13 | 1981-05-22 | Thermo Electronique France Sa | Echangeur de chaleur |
EP0044561A3 (fr) * | 1980-07-21 | 1982-07-14 | MüANYAGIPARI KUTATO INTEZET | Echangeur de chaleur, particulièrement pour échange de chaleur entre fluides gazeux |
DE3137296A1 (de) * | 1981-09-18 | 1983-04-14 | Karl-Heinz Ing.(Grad.) 4715 Ascheberg Beckmann | Platten-waermetauscher |
FR2519579A1 (fr) * | 1982-01-14 | 1983-07-18 | Commissariat Energie Atomique | Procede de fabrication des plaques d'un echangeur de chaleur, par assemblage d'elements bout a bout, en matiere plastique |
-
1987
- 1987-12-10 FR FR8717238A patent/FR2624594B1/fr not_active Expired - Lifetime
-
1988
- 1988-12-09 AT AT89900271T patent/ATE88557T1/de not_active IP Right Cessation
- 1988-12-09 DE DE8989900271T patent/DE3880500D1/de not_active Expired - Lifetime
- 1988-12-09 EP EP89900271A patent/EP0393107B1/fr not_active Expired - Lifetime
- 1988-12-09 WO PCT/FR1988/000600 patent/WO1989005433A1/fr active IP Right Grant
-
1989
- 1989-08-04 NO NO893156A patent/NO168730C/no unknown
Non-Patent Citations (1)
Title |
---|
See references of WO8905433A1 * |
Also Published As
Publication number | Publication date |
---|---|
NO168730C (no) | 1992-03-25 |
NO893156D0 (no) | 1989-08-04 |
NO893156L (no) | 1989-09-29 |
FR2624594B1 (fr) | 1990-04-13 |
NO168730B (no) | 1991-12-16 |
DE3880500D1 (de) | 1993-05-27 |
FR2624594A1 (fr) | 1989-06-16 |
EP0393107B1 (fr) | 1993-04-21 |
ATE88557T1 (de) | 1993-05-15 |
WO1989005433A1 (fr) | 1989-06-15 |
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