EP2944910A1 - Heat exchanger tube - Google Patents
Heat exchanger tube Download PDFInfo
- Publication number
- EP2944910A1 EP2944910A1 EP14167994.4A EP14167994A EP2944910A1 EP 2944910 A1 EP2944910 A1 EP 2944910A1 EP 14167994 A EP14167994 A EP 14167994A EP 2944910 A1 EP2944910 A1 EP 2944910A1
- 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.)
- Granted
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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.
- 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 may comprise 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)
Abstract
Description
- This application claims priority to and the benefit of Korean Patent Application No.
10-2013-0098292 - 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 heat exchanger tube includes an inner insertion body and an outer accommodation body for accommodating the inner insertion body. As shown in
Fig. 1 andFig.1A , 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. - However, 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.
- Korean Patent Publication No.
10-2013-0098292 (September 4,2013 - Accordingly, the present invention is conceived to solve the forgoing problems, and 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.
- In accordance with an aspect of the present invention, 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 may comprise 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.
- The above and/or other aspects of the present invention will become apparent and more readily appreciated from the following description of the exemplary embodiments, taken in conjunction with the accompanying drawings, in which:
-
Fig. 1 is a cross-section view of a conventional heat exchanger tube, -
Fig.1A shows the structure of the inner insertion body of the conventional exchanger tube, -
Fig. 2 is a cross-section view of a heat exchanger tube according to an embodiment of the present invention, -
Fig. 2A shows the structure of the inner insertion body ofFig. 2 , -
Fig. 3 is a view showing only a certain sector of the heat exchanger tube ofFig. 2 , -
Fig. 4 is a cross-section view of a heat exchanger tube according to another embodiment of the present invention; and -
Fig. 4A shows that the structure of the inner insertion body ofFig. 4 , -
Fig. 5 is a cross-section view of a heat exchanger tube according to still another embodiment of the present invention. -
Fig. 5A shows the structure of the inner insertion body ofFig. 5 . - Hereinafter, exemplary embodiments according to the present invention will be described with reference to accompanying drawings. Also, terms and words used in the following description and claims have to be interpreted by not the limited meaning of the typical or dictionary definition, but the meaning and concept corresponding to the technical idea of the present invention on the assumption that the inventor can properly define the concept of the terms in order to describe his/her own invention in the best way.
- Accordingly, the disclosure in the specification and the configurations shown in the drawings are just preferred embodiments of the present invention and do not cover all the technical idea of the present invention. Thus, it should be appreciated that such embodiments may be replaced by various equivalents and modifications at a point of time when the present application is filed.
-
Fig. 2 is a cross-section view of a heat exchanger tube according to an embodiment of the present invention, - Like a conventional heat exchanger, the heat exchanger tube according to this exemplary embodiment as shown in
Fig. 2 includes aninner insertion body 100, and anouter accommodation body 200 for accommodating theinner insertion body 100. - In particular, 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 inFig. 2A andFig. 3 , in which the sectors have the same structure. - For reference,
Fig. 3 is a view showing only a certain sector of the heat exchanger tube according to an embodiment of the present invention, - As described above, 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 anaccommodation body 200, so that an outer circumferential surface of theinsertion body 100 can be in contact with an inner circumferential surface of theaccommodation body 200. - Meanwhile, the inner circumferential surface of 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 theaccommodation body 200 being in contact with theinsertion body 100. - At this time, a plurality of
projections 112 may be formed on an outer circumferential surface of therib 111 of the insertion body so as to improve an efficiency of transferring heat from theinsertion body 100 to theaccommodation body 200. - The
foregoing insertion body 100 andinsertion bodies 100 to be described later are made of aluminum excellent in the heat transfer through extrusion molding. - In particular, as shown in
FIG. 1 , the semicircular sectors that constitute the conventional insertion body 2 are individually and separately manufactured through the extrusion molding. On the other hand, 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 inFigs. 2 ,4 and5 - As described above, if the semicircular sectors that constitute the conventional insertion body 2 are individually and separately manufactured through the extrusion molding, the conventional semicircular sectors have to be inconveniently assembled in order to insert the insertion body 2 into the accommodation body 1. On the contrary, 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 theaccommodation body 200 in such a way of folding theinsertion body 100 including the plurality of sectors to be rolled up. - According to another embodiment, the
insertion body 100 to be inserted in theaccommodation body 200 may include foursectors 110 each having a central angle of 90° as shown inFig. 4 andFig. 4A . Thus, foursectors 110 ° may be folded and then inserted in theaccommodation body 200. - For reference,
Fig. 4 is a cross-section view of a heat exchanger tube according to another embodiment of the present invention. - Likewise, the
sector 110 is formed with a plurality of 111 so that heat can be more efficiently transferred from theinsertion body 100 to theaccommodation body 200, and a plurality ofprojections 112 is formed on an outer circumferential surface of therib 111. - According to still another embodiment, the
insertion body 100 to be inserted in theaccommodation body 200 may include threesectors 110, i.e., include amiddle sector 110a positioned in the middle, and aleft sector 110b and aright sector 110c respectively positioned at left and right sides with respect to themiddle sector 110a. - For reference,
Fig. 5 is a cross-section view of a heat exchanger tube according to still another embodiment of the present invention. - Likewise, the
middle sector 110a, theleft sector 110b and theright sector 110c are formed with a plurality of 111 so that heat can be more efficiently transferred from theinsertion body 100 to theaccommodation body 200, and a plurality ofprojections 112 is formed on an outer circumferential surface of the rib 111 (seeFig. 5 andFig. 5A ). - In this exemplary embodiment, the
left sector 110b and theright sector 110c are folded toward themiddle sector 110a and thus form a cylindrical shape so that theinsertion body 100 having the cylindrical shape can be inserted and accommodated in theaccommodation body 200. - According to an exemplary embodiment, 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.
- Although a few exemplary embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
- A heat exchanger tube for transferring heat due to combustion of a combustor toward an exterior, the heat exchanger tube comprising:an insertion body 100 which is configured by folding up three or more sectors 110 made of aluminum through extrusion molding; andan accommodation body 200 which is configured to accommodate the insertion body 100 so that an inner circumferential surface can be in contact with an outer circumferential surface of the insertion body 100.
- The heat exchanger tube according to claim 1, wherein the insertion body 100 comprises three sectors 110 each having a central angle of 120°.
- The heat exchanger tube according to claim 1, wherein the insertion body 100 comprises four sectors 110 each having a central angle of 90°.
- The heat exchanger tube according to claim 1, wherein the insertion body 100 comprises a middle sector 110a positioned in a 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.
- The heat exchanger tube according to any one of claims 1 to 4, wherein the insertion body 100 comprises a plurality of ribs 111 standing on an inner circumferential surface thereof, and a plurality of projections 112 formed on a surface of the rib 111.
- The heat exchanger tube according to claim 1, wherein a plurality of sectors that constitute the insertion body 100 are connected to form a single body through extrusion molding.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14167994.4A EP2944910B1 (en) | 2014-05-13 | 2014-05-13 | Heat exchanger tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14167994.4A EP2944910B1 (en) | 2014-05-13 | 2014-05-13 | Heat exchanger tube |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2944910A1 true EP2944910A1 (en) | 2015-11-18 |
EP2944910B1 EP2944910B1 (en) | 2016-05-25 |
Family
ID=50685827
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14167994.4A Not-in-force EP2944910B1 (en) | 2014-05-13 | 2014-05-13 | Heat exchanger tube |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP2944910B1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9405062U1 (en) * | 1994-03-24 | 1994-05-26 | Hoval Interliz Ag, Vaduz-Neugut | Heat exchanger tube for boilers |
GB2376432A (en) * | 2000-10-27 | 2002-12-18 | Applied Systems Man Ltd | Method of making a heat exchanger tube, and heat exchanger tube made thereby |
EP1617139A1 (en) * | 2004-07-13 | 2006-01-18 | UNICAL AG S.p.A. | Pipe in a fire tube boiler |
EP1936315A1 (en) * | 2006-12-13 | 2008-06-25 | UNICAL AG S.p.A. | Protected carbon steel pipe for conveying flue gases in a heat exchange apparatus |
WO2011157495A1 (en) * | 2010-06-16 | 2011-12-22 | Unical Ag S.P.A | Tube in fire tube boiler |
-
2014
- 2014-05-13 EP EP14167994.4A patent/EP2944910B1/en not_active Not-in-force
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9405062U1 (en) * | 1994-03-24 | 1994-05-26 | Hoval Interliz Ag, Vaduz-Neugut | Heat exchanger tube for boilers |
GB2376432A (en) * | 2000-10-27 | 2002-12-18 | Applied Systems Man Ltd | Method of making a heat exchanger tube, and heat exchanger tube made thereby |
EP1617139A1 (en) * | 2004-07-13 | 2006-01-18 | UNICAL AG S.p.A. | Pipe in a fire tube boiler |
EP1936315A1 (en) * | 2006-12-13 | 2008-06-25 | UNICAL AG S.p.A. | Protected carbon steel pipe for conveying flue gases in a heat exchange apparatus |
WO2011157495A1 (en) * | 2010-06-16 | 2011-12-22 | Unical Ag S.P.A | Tube in fire tube boiler |
Also Published As
Publication number | Publication date |
---|---|
EP2944910B1 (en) | 2016-05-25 |
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