EP2944910B1 - Tube d'échangeur de chaleur - Google Patents

Tube d'échangeur de chaleur Download PDF

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Publication number
EP2944910B1
EP2944910B1 EP14167994.4A EP14167994A EP2944910B1 EP 2944910 B1 EP2944910 B1 EP 2944910B1 EP 14167994 A EP14167994 A EP 14167994A EP 2944910 B1 EP2944910 B1 EP 2944910B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
exchanger tube
insertion body
sectors
sector
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.)
Not-in-force
Application number
EP14167994.4A
Other languages
German (de)
English (en)
Other versions
EP2944910A1 (fr
Inventor
William Home
Young Moon Ryoo
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.)
Grand Hall Enterprise Co Ltd
Original Assignee
Grand Hall Enterprise Co Ltd
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 Grand Hall Enterprise Co Ltd filed Critical Grand Hall Enterprise Co Ltd
Priority to EP14167994.4A priority Critical patent/EP2944910B1/fr
Publication of EP2944910A1 publication Critical patent/EP2944910A1/fr
Application granted granted Critical
Publication of EP2944910B1 publication Critical patent/EP2944910B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/16—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes extruded
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2275/00—Fastening; Joining
    • F28F2275/14—Fastening; Joining by using form fitting connection, e.g. with tongue and groove

Definitions

  • the present invention relates to a heat exchanger tube, and more particularly to a heat exchanger tube which can maximize an effect on radiating heat as combustion is performed by a combustor such as a boiler or the like in an inner space of the heat exchanger tube and heat due to the internal combustion is transferred to the exterior of the heat exchanger tube.
  • a combustor such as a boiler or the like
  • a heat exchanger tube includes an inner insertion body and an outer accommodation body for accommodating the inner insertion body.
  • an inner insertion body 2 of a conventional heat exchanger tube has a structure where two semicircular sectors each having a semicircular cross-section are coupled and then accommodated in the outer accommodation body 1.
  • EP 1936315 discloses a heat exchanger tube according to the preamble of claim 1.
  • the conventional heat exchanger tube with the foregoing structure has a problem of decreasing a heat exchanging efficiency, and accordingly there is a need of maximizing the surface area of the inner insertion body to thereby enlarge an area to be in contact with combustion gas of the combustor.
  • an aspect of the present invention is to provide a heat exchanger tube, in which a surface area of an inner insertion body is maximally enlarged to improve contact with combustion gas so as to have an improved effect on transferring heat due to combustion to the exterior of the heat exchanger tube when the combustion is performed by a combustor such as a boiler or the like in an inner space of the heat exchanger tube.
  • a heat exchanger tube for transferring heat due to combustion of a combustor toward an exterior comprises an insertion body which is configured by folding up three or more sectors made of aluminum through extrusion molding; and an accommodation body which is configured to accommodate the insertion body so that an inner circumferential surface can be in contact with an outer circumferential surface of the insertion body.
  • the insertion body comprises three sectors each having a central angle of 120°.
  • the insertion body may comprise four sectors each having a central angle of 90°.
  • the insertion body may comprises a middle sector positioned in a middle, and a left sector and a right sector respectively positioned at left and right sides with respect to the middle sector.
  • Fig. 2 is a cross-section view of a heat exchanger tube according to an embodiment of the present invention
  • the heat exchanger tube according to this exemplary embodiment as shown in Fig. 2 includes an inner insertion body 100, and an outer accommodation body 200 for accommodating the inner insertion body 100.
  • the heat exchanger tube according to this exemplary embodiment is different from the conventional heat exchanger tube in that the insertion body 100 includes three sectors with a central angle of 120° as shown in Fig. 2A and Fig. 3 , in which the sectors have the same structure.
  • FIG. 3 is a view showing only a certain sector of the heat exchanger tube according to an embodiment of the present invention.
  • three sectors 110 each having the central angle of 120° are folded to form a cylindrical shape having a circular cross-section.
  • the insertion body 100 folded to have such a cylindrical shape is inserted and accommodated in an accommodation body 200, so that an outer circumferential surface of the insertion body 100 can be in contact with an inner circumferential surface of the accommodation body 200.
  • each sector 110 is formed with a plurality of 111 so that heat due to combustion performed in an inner space S can be transferred as much as possible to the accommodation body 200 being in contact with the insertion body 100.
  • a plurality of projections 112 may be formed on an outer circumferential surface of the rib 111 of the insertion body so as to improve an efficiency of transferring heat from the insertion body 100 to the accommodation body 200.
  • the foregoing insertion body 100 and insertion bodies 100 to be described later are made of aluminum excellent in the heat transfer through extrusion molding.
  • the semicircular sectors that constitute the conventional insertion body 2 are individually and separately manufactured through the extrusion molding.
  • the sectors that constitute the insertion body according to an embodiment of the present invention are manufactured to form a single body through the extrusion molding as shown in Figs. 2 , 4 and 5
  • the sectors that constitute the insertion body according to an embodiment of the present invention are manufactured to form a single body through the extrusion molding, and therefore the insertion body 100 can be easily inserted into the accommodation body 200 in such a way of folding the insertion body 100 including the plurality of sectors to be rolled up.
  • the insertion body 100 to be inserted in the accommodation body 200 may include four sectors 110 each having a central angle of 90° as shown in Fig. 4 and Fig. 4A .
  • four sectors 110 ° may be folded and then inserted in the accommodation body 200.
  • Fig. 4 is a cross-section view of a heat exchanger tube according to another embodiment of the present invention.
  • the sector 110 is formed with a plurality of 111 so that heat can be more efficiently transferred from the insertion body 100 to the accommodation body 200, and a plurality of projections 112 is formed on an outer circumferential surface of the rib 111.
  • the insertion body 100 to be inserted in the accommodation body 200 may include three sectors 110, i.e., include a middle sector 110a positioned in the middle, and a left sector 110b and a right sector 110c respectively positioned at left and right sides with respect to the middle sector 110a.
  • FIG. 5 is a cross-section view of a heat exchanger tube according to still another embodiment of the present invention.
  • the middle sector 110a, the left sector 110b and the right sector 110c are formed with a plurality of 111 so that heat can be more efficiently transferred from the insertion body 100 to the accommodation body 200, and a plurality of projections 112 is formed on an outer circumferential surface of the rib 111 (see Fig. 5 and Fig. 5A ).
  • the left sector 110b and the right sector 110c are folded toward the middle sector 110a and thus form a cylindrical shape so that the insertion body 100 having the cylindrical shape can be inserted and accommodated in the accommodation body 200.
  • the heat exchanger tube includes three or more sectors that constitute the inner insertion body to thereby maximize the surface area thereof and improve the efficiency of transferring heat due to combustion.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (6)

  1. Tube d'échangeur de chaleur pour transférer de la chaleur à cause de la combustion d'une chambre de combustion vers un extérieur, le tube d'échangeur de chaleur comprenant:
    un corps d'insertion (100) en aluminium par moulage par extrusion; et
    un corps de logement (200) qui est configuré pour accueillir le corps d'insertion (100) de façon qu'une surface circonférentielle intérieure puisse être en contact avec une surface circonférentielle extérieure du corps d'insertion (100) caractérisé en ce que le corps d'insertion est configuré en repliant trois secteurs (110) ou plus.
  2. Tube d'échangeur de chaleur selon la revendication 1, où le corps d'insertion 100 comprend trois secteurs 110 chacun ayant un angle central de 120°.
  3. Tube d'échangeur de chaleur selon la revendication 1, où le corps d'insertion 100 comprend quatre secteurs 110 chacun ayant un angle central de 90°.
  4. Tube d'échangeur de chaleur selon la revendication 1, où le corps d'insertion 100 comprend un secteur moyen 110a positionné dans un milieu, et un secteur gauche 110b et un secteur droit 110c respectivement positionnés du côté droit et gauche par rapport au secteur moyen 110a.
  5. Tube d'échangeur de chaleur selon l'une quelconque des revendications 1 à 4, où le corps d'insertion 100 comprend une pluralité de nervures 111 positionnées sur une surface circonférentielle intérieure de cela, et une pluralité de saillies 112 formées sur une surface de la nervure 111.
  6. Tube d'échangeur de chaleur selon la revendication 1, où une pluralité de secteurs qui constituent le corps d'insertion 100 sont connectés pour former un seul corps par moulage par extrusion.
EP14167994.4A 2014-05-13 2014-05-13 Tube d'échangeur de chaleur Not-in-force EP2944910B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14167994.4A EP2944910B1 (fr) 2014-05-13 2014-05-13 Tube d'échangeur de chaleur

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14167994.4A EP2944910B1 (fr) 2014-05-13 2014-05-13 Tube d'échangeur de chaleur

Publications (2)

Publication Number Publication Date
EP2944910A1 EP2944910A1 (fr) 2015-11-18
EP2944910B1 true EP2944910B1 (fr) 2016-05-25

Family

ID=50685827

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14167994.4A Not-in-force EP2944910B1 (fr) 2014-05-13 2014-05-13 Tube d'échangeur de chaleur

Country Status (1)

Country Link
EP (1) EP2944910B1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9405062U1 (de) * 1994-03-24 1994-05-26 Hoval Interliz Ag, Vaduz-Neugut Wärmetauscherrohr für Heizkessel
GB0026411D0 (en) * 2000-10-27 2000-12-13 Pierce David B Method of making a heat exchanger tube and heat exchanger tube made thereby
ITMN20040019A1 (it) * 2004-07-13 2004-10-13 Unical Ag Spa Tubo in caldaia a tubi di fumo
ITMN20060071A1 (it) * 2006-12-13 2008-06-14 Unical Ag Spa Tubo in acciaio al carbonio protetto per il convogliamento di fumi in apparecchio di scambio termico.
IT1401296B1 (it) * 2010-06-16 2013-07-18 Unical Ag Spa Tubo in caldaia a tubi di fumo.

Also Published As

Publication number Publication date
EP2944910A1 (fr) 2015-11-18

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