EP0631101A1 - Verbindungsvorrichtung für Wärmetauscher und Wärmetauscher mit einer solchen Vorrichtung - Google Patents

Verbindungsvorrichtung für Wärmetauscher und Wärmetauscher mit einer solchen Vorrichtung Download PDF

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Publication number
EP0631101A1
EP0631101A1 EP94870102A EP94870102A EP0631101A1 EP 0631101 A1 EP0631101 A1 EP 0631101A1 EP 94870102 A EP94870102 A EP 94870102A EP 94870102 A EP94870102 A EP 94870102A EP 0631101 A1 EP0631101 A1 EP 0631101A1
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EP
European Patent Office
Prior art keywords
assembly
segments
cavity
female
male
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.)
Withdrawn
Application number
EP94870102A
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English (en)
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GENEBREV SA
Original Assignee
GENEBREV SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GENEBREV SA filed Critical GENEBREV SA
Publication of EP0631101A1 publication Critical patent/EP0631101A1/de
Withdrawn legal-status Critical Current

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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
    • F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
    • F28F9/262—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0035—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for domestic or space heating, e.g. heating radiators

Definitions

  • the invention relates to assembly devices for heat exchangers and heat exchangers provided with such devices.
  • the invention relates to heat exchangers such as radiators or convectors made up of dissipating elements assembled between ramps parallel to each other divided into segments.
  • a known assembly method for these heat exchangers uses double threaded fittings or nipples.
  • French patent FR-1,442,606 describes heat exchangers made up of molded elements, in particular made of plastic, in which the two ramps are made up of segments which can be assembled by welding or gluing. The ends of these segments have any shape, in particular cylindrical, or conical.
  • Patent application GB-A-2 082 749 describes connection devices provided with conical male elements for connecting stamped sheet metal radiators to heat transfer fluid passage circuits.
  • these connectors are not designed a priori to take up the significant mechanical stresses likely to occur between segments of distribution ramps and are not removable.
  • the object of the invention is to obtain a reversible, simple and rapid assembly device between elements of heat exchangers; the object of the invention is also that this assembly is capable of reliably recovering the stresses due to the differential expansion of the dissipating elements assembled and this even in the case of dissipating elements of large dimensions or made of metal with a high coefficient of expansion.
  • Another object of the invention is that this assembly can be done without special tools and without calling for a particular qualification of the workforce used.
  • the invention relates to an assembly device for heat exchanger elements comprising at least two distribution ramps, through which an axial duct capable of conveying a heat transfer fluid and arranged along parallel axes between them, dissipative tubular elements of heat extending between said distribution ramps, each ramp consisting of juxtaposed ramp segments and assembled by their axial ends, characterized in that each ramp segment comprises at each of its axial ends a male or female connecting element cooperating in a sealed manner, by fitting, with a corresponding assembly element, female or male, of an axial end of a juxtaposed ramp segment, each male assembly element having an end piece with a frustoconical outer surface tapering towards its free end, each female assembly element comprising a cavity having a frustoconical surface flaring towards its free end, the assembly device comprising there, in addition to locking means capable of reversibly joining two juxtaposed ramp segments.
  • the locking means between two adjacent segments consist of at least one transverse key able to immobilize relative to the other the male and female assembly elements of two juxtaposed segments nested one in the other and in at least a light of section adapted to said key, this lumen passing through the respective side walls of the cavity of the female element and of the end piece of the male element, without contact with the axial duct.
  • These keys preferably have a trapezoidal section with rounded corners.
  • the locking means between two contiguous ramp segments are constituted by resilient metal clips tending to keep two contiguous segments close together.
  • each ramp segment then comprises two parallel segments connected by spacers, two contiguous segments of such an exchanger can be locked relative to each other by their spacers.
  • the base of the frustoconical part of the tip of a male assembly element and likewise, the mouth of the cavity of a female assembly element are preferably surrounded by an annular bearing surface.
  • a nozzle and the corresponding cavity cooperate in sealed manner by contact with their respective frustoconical side walls.
  • Sealing means can be arranged between the side wall of the frustoconical part of a tip of the male element and the frustoconical side wall of a cavity of the female element.
  • sealing means include, for example, a toroidal ring of flexible material inserted in a transverse groove formed in the side wall of the part. frustoconical tip of a male element or in the frustoconical side wall of the cavity of a female element.
  • a cylindrical intermediate section extends between the end of the ramp segment and the base of the frustoconical part of the tip of a male connecting element, the depth of the cavity of the corresponding female assembly element such that the respective annular bearing surfaces of the two segments are practically contiguous when the hermetic assembly is carried out between these two corresponding segments.
  • the cavity of a female assembly element may also include an intermediate section of substantially cylindrical shape extending between the mouth of the cavity and the frustoconical side wall of this cavity.
  • the invention also relates to a heat exchanger comprising at least two distribution ramps traversed by an axial duct capable of conveying a heat transfer fluid and arranged along axes parallel to each other, tubular heat dissipating elements extending between said ramps distribution, each ramp consisting of ramp segments, juxtaposed and assembled by their axial ends, characterized in that said juxtaposed ramp segments are assembled together by means of assembly devices as described above.
  • the tubular heat sink elements preferably have a length greater than 1 meter.
  • the ramp segment 1 shown in section in FIG. 1 is pierced by an axial duct 2.
  • This ramp segment comprises at one of its ends, a male assembly element 3 and, at its other end, a female assembly element 4.
  • Heat sink conduits 5 are connected perpendicular to the segments 1 of a distribution manifold.
  • the male assembly element 3 which extends one of the ends of the segment 1 comprises a frustoconical end-piece 6 through which the duct 2 is extended and which tapers from a base 7, adjoining the segment, towards its top 8.
  • a peripheral groove 9 intended to receive an elastic seal of the O-ring type (not shown).
  • the female assembly element 4 disposed at the other end of the ramp segment 1 comprises a cavity 10 which widens outwards, from its bottom 11 towards its mouth 12.
  • a flexible seal (not shown) inserted in the groove 9 of the end-piece 6 makes it possible to perfect the sealing of the connection between the two respective conical surfaces of the cavity 10 and of the end-piece 6 when the two segments 1 which carry them are axially tightened one against the other.
  • peripheral groove 9 can, according to another embodiment, be formed in the side wall of the cavity 10 of the female assembly element 4.
  • a seal could also be used in the form of a flexible film inserted between the two respective frustoconical walls of the end piece 6 and of the cavity 10.
  • an essential advantage of the invention compared to conventional devices is the disappearance of any intermediate part (nipple) between two segments.
  • the periphery 13 of the mouth 12 is applied against an annular shoulder 14 formed around the base 7 of the end piece 6 on the side of the male assembly element 3, reducing any torsional effect between two segments 1.
  • the forces due to the differential expansion of the conduits 5 are rigidly distributed over all of the sections of the ramp, without the possibility of the appearance of localized weak points, with a minimum risk of breakage at the level of the fittings.
  • the maintenance of two segments 1 relative to each other is ensured by locking, as illustrated in Figs. 2 to 6.
  • the locking means illustrated here are formed Figs. 2 to 4 by transverse pins or keys 15 and corresponding slots 16 formed through male 3 and female 4 assembly elements, on either side of the axial duct 2.
  • the light 16 encroaches on both the side wall of the cavity 10 and on the side wall of the nozzle 6, in which it forms grooves 17 and 17a.
  • the lumen 16 is provided downstream with respect to the sealing means and it does not communicate with the conduit 2. It will be noted that the lumens 16 are advantageously arranged along an axis parallel to that of the dissipating conduits. 5 so that the keys 15 do not take up virtually any stress due to the differential expansion of these dissipating conduits 5.
  • the key locking system 15 allows rigorous positioning of the ramp segments and, appreciable advantage compared to a conventional assembly device, it can be disassembled quickly from the outside. In addition, once the keys 15 in place, their ends can be machined so that their presence goes completely unnoticed.
  • duct 2 is not encumbered at any point in its route by parts such as nipples which would restrict its useful section; a more regular flow is thus obtained over the entire length of the distribution manifold.
  • these keys have the advantage of not being able to be disassembled like threaded parts inconsiderately by the user; in any event, such an intervention could not go unnoticed.
  • the segment of ramp 1 can be provided with heat dissipation fins 18 which participate both in the proper functioning and in the aesthetic appearance of the heat exchanger as a whole.
  • the angle formed between the frustoconical wall of the nozzle 6 and the axis of the conduit 2 is, optimally, between 5 and 10 °.
  • This low taper allows precise positioning of the ramp segments relative to each other; in addition, it generates sufficient friction between the male and female elements engaged one in the other so that, even when a very strong stress occurs due to the difference in expansion between the dissipating elements of two ramp segments contiguous, the axial force to which the locking means are subjected remains relatively negligible.
  • the angle of the cavity 10 of the female assembly element 4 is of the same order or slightly greater, so as to encourage the end-of-travel jamming of the end piece 6 in the cavity 10 and improve the seal.
  • the dimensional accuracy of the assembly requires that, when the two male 3 and female 4 connecting elements are in the ideal position to ensure a tight connection between two segments, the periphery 13 of the mouth 12 and the shoulder 14 are almost contiguous so as to take up without tensions the tensions resulting from the differential expansion of the heat dissipating conduits 5.
  • the assembly device according to the invention is advantageously supplemented by "end pieces” allowing to finish a ramp composed of segments 1 assembled, by fixing at one of its ends, a closing piece and, at the other end, a connecting piece to a heat transfer fluid distribution installation.
  • end pieces comprise a male or female assembly element, locking means making it possible to secure them axially with the adjacent ramp segment and, depending on the case, either a plug or means for connection to a conventional fluid installation (threading , Union connector, etc ).
  • the assembly device as described here will prove to be particularly advantageous in the case where the ramp segments 1 are produced by injection, in particular of light alloys, which makes it possible to reconcile an advantageous cost price and high dimensional precision.
  • This same assembly device can however be used without problem for elements of heat exchangers produced by machining.
  • ramp segments 1 as shown in Figs. 1 and 2 could perfectly well be provided with two male assembly elements or two female elements 4; these are particular embodiments which do not depart from the scope of the invention.
  • Fig. 5 shows another embodiment of a heat exchanger provided with the assembly device according to the invention; this exchanger has double ramps whose conduits 2 are parallel.
  • the double segment 19 is composed of two parts 19a, 19b connected by spacers 20.
  • the figure shows two of these double segments 19 coupled together.
  • the two branches 22 of these clamps are provided lugs 23 which prevent their dismantling by an uninformed person.
  • the clamps 21 take almost no effort but allow very easy mounting and disassembly of the heat exchanger elements.

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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)
EP94870102A 1993-06-22 1994-06-22 Verbindungsvorrichtung für Wärmetauscher und Wärmetauscher mit einer solchen Vorrichtung Withdrawn EP0631101A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9300639A BE1006570A5 (fr) 1993-06-22 1993-06-22 Dispositif d'assemblage pour echangeurs de chaleur.
BE9300639 1993-06-22

Publications (1)

Publication Number Publication Date
EP0631101A1 true EP0631101A1 (de) 1994-12-28

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP94870102A Withdrawn EP0631101A1 (de) 1993-06-22 1994-06-22 Verbindungsvorrichtung für Wärmetauscher und Wärmetauscher mit einer solchen Vorrichtung

Country Status (2)

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EP (1) EP0631101A1 (de)
BE (1) BE1006570A5 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0984241A1 (de) 1998-09-03 2000-03-08 Genebrev S.A. Radiator für Heizungsanlage mit Flüssigkeitsumlauf

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1442606A (fr) * 1964-05-22 1966-06-17 éléments chauffants pour chaudières, installations de chauffage à l'eau ou à la vapeur et analogues
FR2122303A1 (de) * 1971-01-19 1972-09-01 George Auguste
FR2170555A5 (de) * 1971-12-23 1973-09-14 Mariborska Livarna
FR2189698A1 (de) * 1972-06-19 1974-01-25 Pesch Radiatorenwerke Gmbh
WO1981000614A1 (en) * 1979-08-15 1981-03-05 W Offutt Modular solar collector system
GB2078361A (en) * 1980-06-24 1982-01-06 Delanair Ltd Heat exchangers and heat exchanger headers
GB2082749A (en) * 1980-08-22 1982-03-10 Myson Group Ltd Improved Radiator
GB2086030A (en) * 1980-10-29 1982-05-06 Hateley Keith Victor Heat exchanger
US4341346A (en) * 1980-07-30 1982-07-27 Alcan Aluminium (U.K.) Ltd. Radiators for use in hot water central heating systems
DE3338734A1 (de) * 1983-10-25 1985-05-02 Rudolf Dipl.-Ing. 6900 Heidelberg Thomae Gliederradiator
EP0518843A1 (de) * 1991-06-11 1992-12-16 Genebrev S.A. Wärmetauscher mit Dichtung

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1442606A (fr) * 1964-05-22 1966-06-17 éléments chauffants pour chaudières, installations de chauffage à l'eau ou à la vapeur et analogues
FR2122303A1 (de) * 1971-01-19 1972-09-01 George Auguste
FR2170555A5 (de) * 1971-12-23 1973-09-14 Mariborska Livarna
FR2189698A1 (de) * 1972-06-19 1974-01-25 Pesch Radiatorenwerke Gmbh
WO1981000614A1 (en) * 1979-08-15 1981-03-05 W Offutt Modular solar collector system
GB2078361A (en) * 1980-06-24 1982-01-06 Delanair Ltd Heat exchangers and heat exchanger headers
US4341346A (en) * 1980-07-30 1982-07-27 Alcan Aluminium (U.K.) Ltd. Radiators for use in hot water central heating systems
GB2082749A (en) * 1980-08-22 1982-03-10 Myson Group Ltd Improved Radiator
GB2086030A (en) * 1980-10-29 1982-05-06 Hateley Keith Victor Heat exchanger
DE3338734A1 (de) * 1983-10-25 1985-05-02 Rudolf Dipl.-Ing. 6900 Heidelberg Thomae Gliederradiator
EP0518843A1 (de) * 1991-06-11 1992-12-16 Genebrev S.A. Wärmetauscher mit Dichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0984241A1 (de) 1998-09-03 2000-03-08 Genebrev S.A. Radiator für Heizungsanlage mit Flüssigkeitsumlauf

Also Published As

Publication number Publication date
BE1006570A5 (fr) 1994-10-18

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