Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F28—HEAT EXCHANGE IN GENERAL
  • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
  • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
  • F28F9/02—Header boxes; End plates
  • F28F9/0219—Arrangements for sealing end plates into casing or header box; Header box sub-elements
  • F28F9/0224—Header boxes formed by sealing end plates into covers
  • F28F9/0226—Header boxes formed by sealing end plates into covers with resilient gaskets

Definitions

• Plate collector for heat exchanger and heat exchanger comprising such a plate
• the invention relates to a collector plate for heat exchanger and a heat exchanger provided with such a plate.
• a header plate for a heat exchanger comprising a core provided with openings for the passage of tubes of the heat exchanger and a groove, said receiving a cover of collector box, adapted to receive a seal and a portion of the cover and having a base and two wings, respectively called internal and external and connected to the base.
• IE is known heat exchangers comprising a bundle of tubes and spacers, two collector plates and two lids,
• the bundle of tubes and inserts is first assembled. Then, the two collector plates are assembled at the ends of the tubes of the bundle. This set is then placed in a brazing furnace where these different components will be brazed together. Finally, it is secured by crimping and with the interposition of a seal positioned in the groove, a cover on each plate pickup to define a manifold for collecting the fluid flowing in the tubes of the heat exchanger .
• the receiving groove is present all around the collecting plate.
• the invention aims to improve the situation.
• a collector plate as defined above, in which the inner wing is connected to the core and is subdivided into at least two disjoint sections, said two disjoint sections being separated by at least one recess, and recess between two disjoint portions of the inner wing being at least at a location of the header plate for receiving a bent portion of the joint.
• a collector plate does not have an internal wing at least at a bend (or corner) of the outer wing.
• the inner wing is partially provided along the edges of the collecting plate,
• a collecting plate according to the invention has a larger space at least at the corners of the latter so that a seal will be placed there more easily by an operator.
• the collector plate has a periphery and said outer flange is continuous around the perimeter of the collector plate and has substantially straight portions opposite in pairs and connected by elbows and wherein the disjoint sections of the inner wing are located in screws. at least two of said opposite straight portions of the outer wing,
• said groove has at least two substantially parallel sides and the two disjointed sections are placed facing each other, each on a said parallel side,
• said core has at least two bearings, said respectively upper and lower located in two separate planes, one of said bearings being located at the recess between two disjoint portions,
• said base of said receiving groove and said lower bearing extend in a same plane, said first yoke
• an opening for the passage of an end tube is located at said lower bearing, said end tube and / or a collar of the collecting plate surrounding said end tube being able to retain a seal,
• the recess between two disjoint portions of said inner wing is placed opposite two elbows and on one side, said small side, of the outer wing, said small side being adjoining two audits elbows, - reception groove and soul are made in two different rooms,
• said outer flange comprises four opposite straight portions in pairs, each straight portion being connected to an adjacent straight portion by a bend, and wherein said inner flange is at least partially facing said four straight portions so as to define four recesses vis-à-vis each elbow, - said inner wing is connected to said base by a connecting zone having a rounded and inclined stop.
• the collecting plate for a collecting box of a heat exchanger comprises a plurality of orifices suitable for fastening tubes, a first protruding portion accommodating a majority of said orifices so as to form a peripheral groove , in which at least one of said end ports is located in a flat area and more particularly a flat area located at the peripheral groove of the header plate,
• the collector plate comprises a second part, said to be flat and / or with an inclined plane, in which the orifices have a collar,
• the inclined portion of the second part comprises a plurality of orifices, the inclined plane portion has an inclination forming an angle ⁇ between 0 and 35 "with respect to the horizontal, preferably between 15 ° and 25 °;
• the collector plate comprises two second parts, located respectively at the two opposite ends of the collector plate,
• the collector plate comprises crimping teeth or the like, situated on at least a portion of the end edges of the collector plate, capable of securing the attachment by crimping with a part of a cover,
• the invention also relates to a manifold for a heat exchanger, comprising at least one cover fixed on a collector plate as described above.
• Particular embodiments of the invention provide that: - the lid is attached to the collector plate by crimping teeth, or the like, present on the periphery of the collector plate; a seal being present and disposed at least partly between the foot (or lower part) of the cover and the header plate, the seal is stretched around the end tubes.
• the invention also relates to a heat exchanger comprising a collector plate as described above. More particularly, the heat exchanger may comprise a heat exchange bundle for the exchange of heat between at least two fluids.
• the heat exchanger comprises at least one cover having an end, called a cover foot, introduced into the receiving groove and having a protuberance placed opposite the recess of the inner wing, the protuberance filling the eviction of the inner wing so as to make a junction between the two disjoint sections located on either side of the recess.
• Figure 1 schematically shows a sectional view of a header plate with a lid.
• Figure 2 shows a view of a header plate according to a first embodiment visible from the inner side of said header plate.
• Figure 3 is a view of the collecting plate of Figure 2, visible from the outer side of said pickup plate;
• FIG. 4 shows the manifold plate according to the invention, visible from the inside, in the same embodiment as that of Figures 2 and 3, the tubes being fixed in its orifices;
• Figure 5 shows the figure of the collector plate of Figure 4 with a seal disposed and fixed in particular in its groove.
• Figure 6 shows a view of a portion of a header plate according to a second embodiment.
• Figure 7 shows a detail view of a lid assembled to a collector plate according to the second embodiment.
• the invention relates to a header plate 10 for a heat exchanger.
• the collector plate 10 comprises a core 12 provided with openings for the passage of tubes 100 of the heat exchanger and a groove 14, said receiving a cover 102 of collector box, adapted to receive a seal 104 and a portion of the lid called the cover foot.
• the groove 14 allows the placement of a seal 104 or the like, and its relatively firm hold, once in place, until the attachment with a lid, and more particularly a foot of the lid.
• the collector plate 10 has a periphery, here, of substantially rectangular shape with two said large sides 22 and two so-called small sides 24.
• the body of the collector plate 10 is made of metal, for example aluminum or an aluminum alloy. In other words, the collector plate 10 is issued from a strip of metal sheet.
• header plate 10 having at least two sides located vis-à-vis one of the other, namely respectively the two long sides 22 and the two small sides 24,
• the two small sides 24 may subsequently be designated by the term "ends of the collector plate".
• the core 12 has holes (or orifices) for receiving the tube ends 100 of the heat exchanger and are adapted to the shape of their ends.
• the holes are each surrounded by a collar having two pairs of opposite sides.
• the collars are directed towards the inside of the header plate, or more precisely towards the inside of the manifold. In other words, the collars will extend, once the cover 102 mounted on the collector plate 10, inside the volume defined by the collector plate 10 and the cover 102.
• the collars may extend not towards the inside of the collector box but towards the body of the tubes 100.
• the collars will be oriented towards an exchange beam of heat comprising tubes and spacers.
• These collars can be formed by punching and lifting or puncturing the plate.
• the receiving groove 14 has, here, a U shape on at least a portion of the periphery of the header plate 10 and comprises a base 18 and two wings 16 and 20 respectively internal 16 and external 20 and connected to the base 18.
• the shape of the groove can be seen as a three-sided structure with a base 18 extending in a first plane and two wings 16 and 20 substantially perpendicular to said first plane.
• the outer wing 20 (which may still be called the peripheral wing 20) is, eile, part of the receiving groove 14 farthest from the holes for the passage of the tubes 100.
• the outer flange 20 is continuous on the around the collector plate and has a shape with substantially straight portions opposed in pairs and connected by elbows.
• the substantially straight portions correspond in the embodiments illustrated here, next to the collector plates, that is to say the long sides 22 and the small sides 24.
• the elbows coincide with the corners 26 of the collector plate 10,
• the collector plate has an outer flange 20 having four straight portions 34-1 and / or 34-2 opposed in pairs, each straight portion 34-1 and / or 34-2 being connected to a straight portion 34-1. and / or 34-2 adjacent by a bend 26.
• the header plate 10 also has an inner wing 16 at least partially at least partially opposite said four straight portions 34-1 and / or 34-2 so as to define four recesses 30 opposite each elbow 26.
• a particular embodiment proposes that the inner wing 16 is connected to the base 18 by a connecting zone comprising a rounded and inclined stop so as not to damage a seal placed in the groove 14.
• the outer flange 20 has crimping teeth or crenellations 28. These teeth 28 are distributed along the outer flange 20.
• the manifold plate includes crimping teeth 28 located on at least a portion of the end edges of the header plate, adapted to ensure the fixing by crimping with a part of the cover.
• the crimping teeth 28 may be obtained by cutting. Other ways of fixing the cover on the header plate 10 may be considered.
• the inner flange 16 is connected to the core 12. In other words, here the core 12 and the inner flange are in continuity of material. In other words, it is the part of the receiving groove 14 closest to the holes for the passage of the tubes 100.
• the inner wing 16 is subdivided into at least two disjoint sections, said two disjointed sections being separated by at least one recess 30 and the recess 30 between two disjointed portions of the inner wing 16 being at least level of a location of the header plate 10 for receiving a bent portion of a joint.
• the recess 30 between two disjoint portions of the inner flange 16 is at least placed opposite a bend 26 of the outer flange 20.
• the inner wing 16 can be seen as being formed by an alternation of slots spaced by recesses.
• the inner wing 20 is interrupted in places and, according to the invention at least at a corner of the collecting plate 10.
• the disjointed sections of the inner flange 16 are located opposite at least two of said opposite straight portions of the outer flange 20.
• the core 12 has at least two bearings, said respectively upper 12-1 and lower 12-2 located in two distinct planes and, here, connected by an intermediate portion 12- 3.
• the upper bearing 12-1 may also be called protruding part or part "medallion".
• the medallion part of the collector plate is obtained, for example, by stamping.
• the lower bearing 12-2 may, for its part, be called “flat area”.
• the term “flat area” means that one of the orifices 108 (or openings 108 for the passage of the tubes) is at the level of bottom of the header plate (as opposed to the protruding portion), that is to say at the base 18 of the peripheral groove 14 of the header plate.
• the flat area is a zone without relief, so no groove or protuberance of any kind, except the collars located around the openings / openings passage tubes.
• the intermediate portion 12-3 may, for its part, be designated by the term "part inclined plane".
• the inclined plane portion may also be obtained by stamping, preferably during the formation of the protruding portion (or upper bearing) forming a medallion.
• the upper bearing 12-1 (or the protruding part forming a medallion) is directly, and without transition, followed by the intermediate portion 12-3 (or part with an inclined plane). to end at the lower level 12-2 (or the end zone of the collecting plate formed by the flat area).
• the base 18 of the receiving groove and the lower bearing 12-2 both extend in the first plane.
• the base 18 of the receiving groove and the lower bearing 12-2 extend in the same plane (here, it is the first plane).
• the upper bearing 12-1 extends, meanwhile, in a plane parallel to the foreground.
• the recess 30 is disposed at the end of the collecting plate 10. In other words, the recess 30 is located near the small side 24 of the collector plate 10.
• the latter is placed opposite two elbows 26 and a small side 24 of the outer wing, iiedit small side 24 being adjacent audits two elbows 26.
• the interrupted portion of the inner wing 16 is U-shaped.
• one of said bearings (here, the lower bearing 12-2) is located at the recess 30 between two disjoint portions of the inner wing 16.
• the recess of the outer flange 16 is contiguous with the lower bearing 12-2.
• the lower level 12-2 and the base 18 are not distinct and form a single level located on a single plane (here, it is the foreground).
• the lower bearing 12-2 comprises, in this embodiment, a passage hole for a tube surrounded by a collar.
• the collar and / or a tube will retain the seal 104 during the assembly of the heat exchanger, in other words, here, one of said orifices suitable for fixing tubes and located at the end of the Slip plate is located in the flat area.
• an opening for the passage of an end tube is located at the lower bearing 12-2, the tube and / or collar of the header plate surrounding the end tube being adapted to retain a seal .
• the intermediate portion 12-3 here has a slightly rounded shape and is provided with two holes for the passage of tubes.
• the inclined plane portion 12-3 comprises, in this example, a plurality of orifices.
• this portion inclined plane 12-3 has an inclination forming an angle ⁇ between 0 and 35 ° relative to the horizontal, preferably between 15 ° and 25 °.
• the angle is equal to 22 °.
• a non-illustrated embodiment proposes that the collector plate 10 comprises two lower bearings 12-2 each connected to the upper bearing 12-1 by an intermediate portion 12-3, the lower bearing members 12-1 being located respectively at the two opposite ends of the slip plate 10 (or in other words, at the two small sides 24 of the header plate 10).
• a seal 104 is positioned in the portion forming the groove 14 due to the medallion portion and against the raised edges of the collector plate 10. Due to the presence at least the one of the ends of the header plate 10 of a flat area (or bottom bearing 12-2), there is a much larger place (if there was a groove 14 to the end of the plate 10) so that the seal 104 is easily set up by an operator.
• the seal 104 preferably comprises at least at one of its ends, or on at least one of its short sides, a stop 106 intended to abut or contact with the end protruding from the tube end.
• this stop 106 exists on the two small opposite sides of the seal 106.
• the seal may be mounted in extension around the end tubes.
• the idea of the invention lies in the fact of adapting a collector plate 10 to medallion, or said peripheral groove, with all of its advantageous characteristics by overcoming its defects, at the ends of the plate collecting.
• the collector plate according to the invention consists of a medallion collector plate whose ends are of flat collector type.
• the recess 30 between two disjoint portions of the inner flange 16 is placed opposite a bend 26 of the outer flange 20.
• the inner wing 16 is interrupted at a corner 26 of the header plate 10.
• the inner wing 16 has four disjoint portions, each being placed on one side of the header plate 10.
• the disjoint portions 34-1 each located on a small side 24 of the header plate 10, are located vis-à-vis -vis one of the other.
• the disjoint portions 34-2 each located on a large side 22 of the header plate 10 are located vis-à-vis one another.
• the core 12 and the receiving groove 14 may be made in two different rooms. Both parts will be assembled when assembling the heat exchanger.
• FIG. 6 represents the part comprising the receiving groove 14. The part comprising the core 12 is not visible for the sake of simplification.
• the outer flange 20 has four straight portions 34-1 and 34-2 opposite in pairs, each straight portion being connected to an adjacent straight portion by a bend 26.
• the inner flange 16 is at least partially opposite the four straight portions 34-1 and 34-2 so as to define four recesses 30 opposite each bend 26 of the header plate.
• the invention also relates to a heat exchanger comprising at least one collector plate as previously described.
• the exchanger comprises at least one cover 102.
• the cover 102 has an end, called a cover foot, introduced into the receiving groove 14 and comprises a protuberance 32 placed opposite of the recess 30 of the inner flange 16, the protrusion 32 makes the junction between the two disjointed sections of the inner flange 16.
• the protrusion 32 fills the space created by the recess 30.
• the protrusion 32 occupies said recess 30 of the inner flange 16 so as to make a junction between said two disjointed sections lying on either side of the recess 30.

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• 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)

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• 2008
  • 2008-11-06 FR FR0806185A patent/FR2938052B1/fr not_active Expired - Fee Related
• 2009
  • 2009-11-02 US US13/127,867 patent/US9297594B2/en active Active
  • 2009-11-02 WO PCT/EP2009/064475 patent/WO2010052194A1/fr active Application Filing
  • 2009-11-02 PL PL09745043T patent/PL2344830T3/pl unknown
  • 2009-11-02 EP EP09745043A patent/EP2344830B1/de active Active

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