EP0518843A1 - Wärmetauscher mit Dichtung - Google Patents

Wärmetauscher mit Dichtung Download PDF

Info

Publication number
EP0518843A1
EP0518843A1 EP92870087A EP92870087A EP0518843A1 EP 0518843 A1 EP0518843 A1 EP 0518843A1 EP 92870087 A EP92870087 A EP 92870087A EP 92870087 A EP92870087 A EP 92870087A EP 0518843 A1 EP0518843 A1 EP 0518843A1
Authority
EP
European Patent Office
Prior art keywords
groove
segments
face
segment
seal
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Withdrawn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
EP92870087A
Other languages
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 EP0518843A1 publication Critical patent/EP0518843A1/de
Withdrawn legal-status Critical Current

Links

Images

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
    • F28F9/264—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators for radiators by sleeves, nipples

Definitions

  • the invention relates to sealing devices for heat exchangers which comprise two fluid distribution manifolds parallel to each other; the invention is more particularly intended for exchangers provided with dissipator tubes of dimensions greater than one meter and which can go up to several meters in length.
  • Heat exchangers in devices such as radiators, convectors etc. most often have ramps divided into segments. These segments are generally assembled using threaded fittings (or nipples). In known manner, flat and rigid seals are inserted during assembly, between the different segments. Materials such as paper are used in the case of cast iron radiators, klingerit, or compressed asbestos in the case of steel or aluminum radiators. These joints are compressed between the flanges of the segments, which must be strictly flat.
  • French patent 2,149,999 describes a radiator for a central heating installation in which the elements, made up of hollow metal profiles, are assembled by threaded connections. Elastic seals are arranged in enlargements formed in the walls of the hollow profiles. Such a design limits the length of the segments or assumes that there is practically no relative movement between two adjacent sections.
  • French patent 32,737 describes a radiator formed of juxtaposed sections each comprising a groove; a rubber seal is placed in this groove during assembly.
  • the seals are able to ensure a good seal for axial movements relative to the ramp but not at all for relative movements between two segments. In practice, this means that the length of the segments is here again limited.
  • the object of the invention is to produce a sealing device resistant to stresses severe thermal and mechanical effects involved in heat exchangers with large dissipative tubes.
  • Another object of the invention is that this sealing device also applies to exchangers provided with metal elements with a high coefficient of thermal expansion.
  • Another object of the invention is that the qualities of this device do not degrade over time.
  • Another object is that this device is easy to assemble and that it does not increase the manufacturing costs.
  • this device offers stable performance in the temperature range where the exchanger is supposed to operate (typically, from -10 to + 90 ° C).
  • the subject of the present invention is a sealing device for a heat exchanger, the said exchanger comprising at least two fluid distribution ramps parallel to each other and each comprising an axial duct, the said ramps being divided into segments, exchanger tubes s extending between the corresponding segments of the distribution ramps, the segments of the same distribution ramp having two end faces and being joined end to end by threaded connections, the end faces of these segments extending substantially in planes perpendicular to their axis; in this device, one of the end faces of each segment has a groove disposed around the axial duct of this segment, the other face being flat; an annular seal made of a flexible elastic material, of dimensions adapted to those of said groove, is inserted into this groove projecting from it, so as to apply hermetically against the flat end face of an adjacent segment .
  • the seal of the device according to the invention advantageously has a circular section.
  • it preferably has the shape of a torus.
  • This flexible seal has, in an advantageous form, a rectangular section, the groove having a corresponding rectangular shape.
  • the part of the end face surrounded by the groove is set back relative to the plane of the end face circumscribed at the groove; in this way, the flexible seal extends along this recessed part and has, after tightening, a comma-shaped section.
  • the groove is arranged at the junction between the end face and the axial duct of the segment.
  • the material constituting the flexible seal is preferably chosen from the assembly formed by synthetic elastic materials, rubber, synthetic rubber, silicone rubber.
  • the invention has the advantage of conferring silent operation on the heat exchangers.
  • Another advantage is that it is no longer necessary to polish the two end faces before assembly, in order to avoid leaks due to traces of machining, painting, etc. Indeed, the flexible seal tolerates certain irregularities in the finish of the metal and in the assembly.
  • Fig. 1 schematically shows a heat exchanger 1 comprising two distribution ramps 2,3. Each of these ramps 2,3 is divided into segments 4, the corresponding segments 4 being interconnected by dissipator tubes 5.
  • Fig. 2 shows, in axial section, the assembly of segments 4 with sealing device 6 according to the prior art.
  • the ends 7 of each segment 4 are tapped respectively one according to a straight screw pitch, the other according to a reverse pitch.
  • a threaded connection (or nipple) comprising at each of its ends a right thread and a corresponding left thread, is mounted between the segments 4, which it secures.
  • Fig. 3 is a perspective view with cutaway of a segment 4 of distribution manifold 2 or 3 provided with a sealing device according to the invention.
  • the segment 4 is pierced axially by a conduit 10 carrying an internal thread.
  • a threaded connection 8 (or nipple) carrying two reverse screw threads is inserted, for mounting the exchanger, in this conduit 10.
  • the end face 9 of segment 4 comprises a flat part in which a groove 11 is hollowed out. , better visible in Fig. 4.
  • a flexible gasket 12 In this groove 11 is inserted a flexible gasket 12. It is also seen, in FIG. 3, a dissipator tube 5 connecting together the two distribution ramps 2,3 as well as the cooling fins 13 of this tube 5.
  • Fig. 4 shows, partially in axial section, one of the embodiments of the sealing device according to the invention.
  • the end face 9 of one of the segments 4 comprises, as shown in FIG. 3, a groove 11 into which is inserted a flexible seal 12, here of round section.
  • the end face 14 of the other segment 4, which faces it, is perfectly flat, which allows the flexible ring 12 to slide smoothly on this face when the differential expansion causes a relative movement perpendicular to the axis of the segments.
  • the threaded connection (or nipple) 8 is also pierced longitudinally so as to let the heat transfer fluid through, and lined with internal support panels 15 intended to allow the use of a clamping tool (not shown).
  • the thread of the connector 8 - whose role is purely mechanical - is calculated so as to allow a certain radial clearance between the connector 8 and each segment 4 on which it is mounted.
  • This radial clearance absorbs a large part of the tensions due to the differential expansion between the segments 4.
  • This relative clearance does not give rise to any sealing problem, since the device according to the invention is precisely designed to absorb without loss the relative movements between adjacent segments 4 are effective.
  • Fig. 5 shows an enlarged detail of FIG. 4: the end face 9 of one of the facing segments 4 is hollowed out with a groove 16; a seal 17 is engaged in this groove 16 but can slide without the seal being affected on the flat face 14 so as to fully absorb the differences in size caused by the expansion.
  • Figs. 6 and 7 show other possible variants of the device according to the invention: in FIG. 6, the seal 18 has a rectangular section (the groove 19 therefore has, therefore, the shape of a rectangular groove).
  • the seal 20 shown in FIG. 7 has an initially round section but it takes, after assembly, the shape of a comma, that is to say a rounded part 21 to which a lip 22 is attached.
  • Part 24 of the end face between the groove and the axis of the segment is in fact slightly recessed relative to the plane of the end face 9.
  • the seal 20 When the seal 20 is compressed, it preferably extends in the direction of the axis, from which a lip 22 is formed constituting a particularly effective seal.
  • Fig. 8 a variant of the sealing device according to the invention: the groove 23 has been provided at the junction of the end faces and the axial cavity 10, which in particular makes it possible to simplify the assembly by simply threading the seal 12 on the threaded connection 8.
  • elastomers such as synthetic rubbers and in particular silicone rubbers.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasket Seals (AREA)
EP92870087A 1991-06-11 1992-06-11 Wärmetauscher mit Dichtung Withdrawn EP0518843A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE9100563 1991-06-11
BE9100563A BE1004933A3 (fr) 1991-06-11 1991-06-11 Dispositifs d'etancheite pour echangeurs de chaleur.

Publications (1)

Publication Number Publication Date
EP0518843A1 true EP0518843A1 (de) 1992-12-16

Family

ID=3885558

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92870087A Withdrawn EP0518843A1 (de) 1991-06-11 1992-06-11 Wärmetauscher mit Dichtung

Country Status (4)

Country Link
EP (1) EP0518843A1 (de)
BE (1) BE1004933A3 (de)
DE (1) DE518843T1 (de)
ES (1) ES2041235T1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1006570A5 (fr) * 1993-06-22 1994-10-18 Genebrev Sa Dispositif d'assemblage pour echangeurs de chaleur.
EP0984241A1 (de) 1998-09-03 2000-03-08 Genebrev S.A. Radiator für Heizungsanlage mit Flüssigkeitsumlauf
EP1043560A1 (de) * 1999-04-06 2000-10-11 S.I.R.A. Spa Heizkörper für Heizungsanlage
FR2918165A1 (fr) * 2007-06-29 2009-01-02 Dupraz En Soc Par Actions Simp Enchangeur atmospherique
ES2343616A1 (es) * 2008-10-27 2010-08-04 Industrias Royal Termic, S.L. Radiador electrico.
ITMI20110345A1 (it) * 2011-03-04 2012-09-05 Fondital Spa Dispositivo adattatore per collegare un elemento di radiatore ad un impianto idraulico

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1679371A1 (de) * 1967-02-27 1971-03-18 Kirsch Fa Bernhard Vorrichtung zum Verbinden von zwei oder mehreren Radiatorengliedern
FR2149999A5 (de) * 1971-08-04 1973-03-30 Sas Italtermo Simonato

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE521661C (de) * 1931-03-27 Radiateurs Du Docteur Sa Verbindungsnabe fuer Gliederheizkoerper aus Blech
US1340289A (en) * 1918-01-09 1920-05-18 Vincent R O'brien Nipple-coupling for radiators and similar structures
FR32737E (fr) * 1926-12-10 1928-02-21 élément de radiateur en tôle d'acier
US3439732A (en) * 1964-11-28 1969-04-22 Mario Andreoli Die-casting process using magnetic core to position preform
CH612748A5 (en) * 1975-01-20 1979-08-15 Alfer Alu Fertigbau Hot water radiator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1679371A1 (de) * 1967-02-27 1971-03-18 Kirsch Fa Bernhard Vorrichtung zum Verbinden von zwei oder mehreren Radiatorengliedern
FR2149999A5 (de) * 1971-08-04 1973-03-30 Sas Italtermo Simonato

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1006570A5 (fr) * 1993-06-22 1994-10-18 Genebrev Sa Dispositif d'assemblage pour echangeurs de chaleur.
EP0631101A1 (de) * 1993-06-22 1994-12-28 Genebrev S.A. Verbindungsvorrichtung für Wärmetauscher und Wärmetauscher mit einer solchen Vorrichtung
EP0984241A1 (de) 1998-09-03 2000-03-08 Genebrev S.A. Radiator für Heizungsanlage mit Flüssigkeitsumlauf
EP1043560A1 (de) * 1999-04-06 2000-10-11 S.I.R.A. Spa Heizkörper für Heizungsanlage
FR2918165A1 (fr) * 2007-06-29 2009-01-02 Dupraz En Soc Par Actions Simp Enchangeur atmospherique
ES2343616A1 (es) * 2008-10-27 2010-08-04 Industrias Royal Termic, S.L. Radiador electrico.
ITMI20110345A1 (it) * 2011-03-04 2012-09-05 Fondital Spa Dispositivo adattatore per collegare un elemento di radiatore ad un impianto idraulico

Also Published As

Publication number Publication date
ES2041235T1 (es) 1993-11-16
DE518843T1 (de) 1993-09-23
BE1004933A3 (fr) 1993-03-02

Similar Documents

Publication Publication Date Title
FR2788580A1 (fr) Raccord pour tubes
EP0854997B1 (de) Zusammengesetzter dichtring und konstruktion mit einem solchen dichtring
EP0241347B1 (de) Vorrichtung zum dichten Verbinden zweier Elemente einer Rohrleitung
FR2829219A1 (fr) Raccord d'etancheite pre-assemble
FR2651294A1 (fr) Unite d'etancheite.
CA2489516A1 (fr) Joint filete tubulaire renforce pour etancheite amelioree apres expansion plastique
FR2468058A1 (fr) Joint d'etancheite, notamment pour raccord a brides sous v ide
EP0473474A1 (de) Wasserkasten für einen Hauptwärmetauscher, insbesondere für Kraftfahrzeuge, der einen zweiten Wärmetauscher enthält
BE1004933A3 (fr) Dispositifs d'etancheite pour echangeurs de chaleur.
EP0376772A1 (de) Bewegliche Rohrverbindung, insbesondere für Auspuffrohre an Kraftfahrzeugen
WO2001007801A1 (fr) Appareil d'accouplement hydrocinetique, notamment pour vehicule automobile
EP1291568B1 (de) Schnellkupplung für verformbare Rohre
EP0375515B1 (de) Demontierbare Verbindung zwischen zwei stark beanspruchten Teilen
BE1008705A3 (fr) Raccord de fixation pour un tube annele.
FR2757260A1 (fr) Echangeur de chaleur pour fluides liquides a raccords visses
EP1621751A1 (de) Konvergente Schubdüse eines Strahltriebwerks
EP4127541B1 (de) Spannsystem zum verbinden von rohren mit einem bund und einer dichtung
FR2790303A1 (fr) Dispositif d'etancheite pour raccordement etanche entre un tube rigide et un element de connexion femelle dans un circuit de transfert de fluide, et raccord equipe d'un tel dispositif
CH618258A5 (de)
FR2910110A3 (fr) Dispositif encliquetable de raccord de reseau de transfert de fluide
FR2929642A1 (fr) Tube d'alimentation en lubrifiant d'un turbocompresseur.
BE1006570A5 (fr) Dispositif d'assemblage pour echangeurs de chaleur.
FR2555285A1 (fr) Groupe de raccordement a tubulure pour tuyauteries, appareils hydrauliques avec compensation des erreurs de montage
FR2921142A1 (fr) Joint pour raccord d'installation de distribution de fluide notamment gazeux
FR2789148A1 (fr) Dispositif pour le raccordement de deux conduits

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE DE ES FR GB IT NL

17P Request for examination filed

Effective date: 19921106

17Q First examination report despatched

Effective date: 19930408

ITCL It: translation for ep claims filed

Representative=s name: CALVANI SALVI VERONELLI

GBC Gb: translation of claims filed (gb section 78(7)/1977)
TCNL Nl: translation of patent claims filed
TCAT At: translation of patent claims filed
DET De: translation of patent claims
REG Reference to a national code

Ref country code: ES

Ref legal event code: BA2A

Ref document number: 2041235

Country of ref document: ES

Kind code of ref document: T1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19940921