EP2738504A1 - Tubing element for a heat exchanger means - Google Patents
Tubing element for a heat exchanger means Download PDFInfo
- Publication number
- EP2738504A1 EP2738504A1 EP12195014.1A EP12195014A EP2738504A1 EP 2738504 A1 EP2738504 A1 EP 2738504A1 EP 12195014 A EP12195014 A EP 12195014A EP 2738504 A1 EP2738504 A1 EP 2738504A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- side wall
- fins
- tubing element
- tubing
- heat exchanger
- 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- Withdrawn
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Classifications
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- 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
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
- F28D1/0472—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being helically or spirally coiled
- F28D1/0473—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being helically or spirally coiled the conduits having a non-circular cross-section
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- 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
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
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- 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
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/025—Tubular elements of cross-section which is non-circular with variable shape, e.g. with modified tube ends, with different geometrical features
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- 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
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
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- 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
- F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
- F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
Definitions
- EP 0 640 803 A1 relates to heat transfer coil, where a second piece of tubing is wound around the first piece of tubing while the first piece is straight and where the first piece of tubing is then formed to define the overall coil shape and then the first and second pieces of tubing internally sized by internal pressurization to also force the two pieces of tubing to intimate contact with each other.
- the surface for heat exchange is increased.
- the efficiency of the heat exchanger may be significantly improved.
- the fins are at least partially covered by covering wall and/or that the fins are monoblock fins.
- the fins are inclined arranged on the at least one of the outer surfaces of the first side wall and/or of the second side wall, whereby exemplarily the angle between the fins and the outer surface is chosen within a range of approximately 15° to 85°.
- the fins merely extend along the whole width of at least one of the outer surfaces of the first side wall and/or of the second side wall and/or are curved.
- the fins are arranged such that the medium flowing against the fins flows against a concave formed part of the fin.
- the fins may have a height chosen within a range of about 0.5 mm to about 5.0 mm, preferably about 2-3 mm.
- the tubing element may comprise at least one microchannel.
- several microchannels with a round or circular cross-section and/or several microchannels with an angular cross-section exemplarily several microchannels with a triangular cross-section and/or several microchannels with quadrangular cross-section are provided.
- At least some of the microchannels may be arranged with an off-set to each other, whereby exemplarily all microchannels are arranged with an off-set to each other.
- the off-set may result in several chamfers and/or grooves within the first side wall and/or the second side wall.
- the tubing element may comprise at its a first end and at its second end a collecting portion which is reducing the width of the first side wall and the second side wall to a smaller width.
- the heat exchanger may comprise several tubing elements and that the tubing elements are forming as a substantially overall cylindrical structure having a central longitudinal axis and that the tubing elements are spirally curved around the central longitudinal axis and interleaved in the structure.
- the heat exchanger means may be a radiator or a cooler or a condenser or an evaporator.
- a tubing element is used to manufacture at least partially a heat exchanger means according to claim 10 or 11 exemplarily by tilting and/or sloping and at least partially helically winding and/or twisting the tubing element so to form at least a part of a helical structure.
- the present invention relates to a method of manufacturing of a tubing element with the features of claim 15. Accordingly, a tubing element according to any of claims 1 to 9 is manufactured, whereby exemplarily the tubing element is received by using an extrusion process of a heat transfer material, whereby preferably the extrusion process is a single extrusion process and/or whereby preferably the heat exchanger material is at least partially aluminium or copper or an alloy thereof.
- the tubing element 10 is a rigid elongated heat exchanger tube having a first end 20 and a second end 30. There are relatively large parallel opposite side walls 40 and 50 with generally flat surfaces. The opposite parallel arranged side walls 40, 50 of the tubing element are joined with relatively small opposite edge walls 45, 55, which are rounded connection walls 45, 55.
- the tubing element 10 is partially tilted and sloped and also helically wound and twisted so as to form at least a part of a helical structure.
- the distance d between the first side wall 40 and the second side wall 50 is considerably smaller than the width W of the side walls 40, 50.
- the tubing element 10 is partially tilted and sloped and also helically wound and twisted so as to form at least a part of a helical structure.
- Figure 2 shows a perspective view of a first embodiment of the tubing element 10.
- the fins 60 follow the slope and the tilt.
- the fins 60 have two defining angles ⁇ and ⁇ .
- the angle Y is the angle which is enclosed by the fins 60 and the connection walls 45, 55 as also shown in Figures 2 , 5 and 8 .
- the angle ⁇ is the angle of the fin 60 and the outer surface 42, 52 of the first side wall 40 or the second side wall 50.
- the first distance a between two adjacent fins 60 may be larger than a second distance b of these adjacent fins 60.
- the first distance a may be used in the entry section of the gap defined by two adjacent fins 60, i.e. the section for the entry of a heat transfer media flowing through the fins. So, the fins 60 are substantially parallel.
- the fins 60 according to the embodiment shown in Figures 2 to 6 are substantially perpendicular arranged on the outer surfaces 42, 52 of the first side wall 40 and of the second side wall 50.
- the fins 60 may be inclined arranged on the at least one of the outer surfaces 42, 52 of the first side wall 40 and/or of the second side wall 50, whereby exemplarily the angle between the fins 60 and the outer surface 42 or 52 may be chosen within a range of approximately 15° to 85°.
- the fins 60 merely extend along the whole width W of the outer surfaces 42, 52 of the first side wall 40 and/or of the second side wall 50 and are slightly curved.
- the fins 60 are arranged in a plurality of parallel rows substantially along the whole length of the tubing element 10.
- this angle ⁇ may be substantially perpendicular.
- this angle ⁇ may be chosen within range of about 15° to about 60° and may be preferably chosen within a range of about 20° to about 25°.
- An angle ⁇ of about 45° between the fins 60 at least one of the connection walls 45, 55 is considered to be substantially neutral, in particular as a neutral arrangement with respect to the interference with e.g. fans or the like, which are connected or used together with a heat exchanger means comprising such a tubing element 10.
- the fins 60 are formed slightly concave or convex, which is, however, not mandatory.
- the slightly concave or convex shape of the fins 60 may be achieved by an offset of the center part of the middle section of the fins 60 with respect to the endpoints of the fins 60 within a range of about 0.5 mm to about 5 mm, preferably of about 1 mm to about 2 mm, most preferred of about 1.5 mm.
- the offset of the center part of the middle section of the fins 60 with respect to the endpoints of the fins 60 is about 1 mm.
- the fins 60 according to the embodiment shown in Figure 2 have a height of about 2.5 mm.
- the fins 60 may have a height chosen within a range of about 0.5 mm to about 5.0 mm, preferably about 2-3 mm.
- tubing element 10 collecting elements 25, 35 are provided, which reduce width of the tubing element 10 to a broader diameter, i.e. the diameter of the tubular connectors of circular cross-sections 27, 37.
- FIG. 7 is a perspective view of a heat exchanger means 100 comprising a plurality of a first set of interlaced sloped helical microchannel tubing elements 10 with adjacent sloped and twisted similarly helically formed tubing elements 10 and a respective second set S2 inside of the first set S1.
- FIG 8 is a perspective view of the second embodiment of the tubing element according to the present invention.
- the second embodiment of the tubing element 10' is merely the same as the one shown in Figures 2 to 6 .
- a different kind of fins is used, i.e. fins 60'.
- the fins 60' are arranged along a curve extending substantially the whole width W of at least one of the outer surfaces 42, 52 of the sidewall 40 and sidewall 50 and as can be seen from Figure 9 , between each fins 60' arranged along one curve a gap is provided.
- the fins 60' are arranged in a plurality of rows which are arranged parallel.
- the fins 60' are according to the embodiment shown in Figure 8 perpendicularly arranged on the outer surfaces 42, 52 of the first side wall 40 and of the second side wall 50.
- the fins 60' may be inclined arranged on at least one of the outer surfaces 42, 52 of the first side wall 40 and/or of the second side wall 50, whereby exemplarily the angle between the fins 60' and the outer surface 40, 50 is substantially perpendicular.
- this angle ⁇ may be substantially perpendicular. Alternatively, this angle ⁇ may be chosen within range of about 15° to about 60° and may be preferably chosen within a range of about 20° to about 25°.
- An angle ⁇ of about 45° between the fins 60 at least one of the connection walls 45, 55 is considered to be substantially neutral, in particular as a neutral arrangement with respect to the interference with e.g. fans or the like, which may be connected or used together with a heat exchanger means comprising such a tubing element 10.
- the fins 60' and the curve of fins 60' is formed slightly concave.
- the slightly concave shape of the fins 60' is achieved by an offset of the center part of the middle section of the fins 60' and the curve of fins 60' with respect to the endpoints of the fins 60' and the curve of fins 60' within a range of about 0.5 mm to about 5 mm, preferably of about 1 mm to about 2 mm, most preferred of about 1.5 mm.
- the fins 60' are arranged such that the medium flowing against the fins 60' flows against a concave formed part of the fins 60'.
- the fins 60' according to the embodiment shown in Figure 8 have a height of about 3 mm.
- the fins 60' may have a height chosen within a range of about 0.5 mm to about 5.0 mm, preferably about 2-3 mm.
- the curves of fins 60' are arranged in a plurality of substantially parallel rows along the tubing element.
- Figure 9 is showing in detail embodiment of a tube 10' with fins 60' as shown in Figure 8 and having a plurality of microchannels 70 with a square cross-section.
- draining plates 80 and heat exchanger tubes 10 may be arranged to a heat exchanger means 100 comprising a plurality of interlaced sloped and tilted helical microchannel tubing elements 10 and draining plates 80 between each of the pair of adjacent tubing elements 10.
- draining plates 80 is preferred in cases where the heat exchanger means 100 is an evaporator.
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- 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)
- Ocean & Marine Engineering (AREA)
Abstract
The present invention relates to a tubing element (10, 10') for a heat exchanger means (100, 100'), the tubing element (10, 10') being at least partially a rigid elongated heat exchanger tubing having at least a first end (20) and at least a second end (30) and having a first side wall (40) and a second side wall (50), the first side wall (40) and the second side wall (50) being arranged substantially parallel to each other and the distance (d) between the first side wall (40) and the second side wall (50) being considerably smaller than the width (W) of the first side wall (40) and the second side wall (50) resulting in a substantially overall flat tubing structure, the tubing element (10, 10') having a plurality of fins (60, 60') on at least one of the outer surfaces (42, 52) of the first side wall (40) and/or of the second side wall (50). Furthermore, the present invention relates to a heat exchanger means, the use of a tubing element (10, 10'), the use of a heat exchanger means (100, 100') and the method of manufacturing of a tubing element (10, 10') to manufacture at least partially a heat exchanger means (100, 100').
Description
- The present invention relates to a tubing element for a heat exchanger means, a heat exchanger means, the use of a tubing element to manufacture at least partially a heat exchanger means, the use of a heat exchanger means to exchange heat and the method of manufacturing of a tubing element.
- In the technical field of heat exchangers such as evaporators, condensers, radiators and coolers there have been many attempts to provide compact and energy efficient heat exchangers.
- For instance,
EP 1 840 494 A2 - Moreover,
DE 20 2008 006 379 U1 discloses an aluminium or aluminium alloy profile, which can be used for tubes for heat exchangers. The profile has a central channel and several further channels arranged around the central channel. -
DE 2 209 325DE 2 209 329 - Additionally
GB 1 390 782 - Further,
EP 0 640 803 A1 relates to heat transfer coil, where a second piece of tubing is wound around the first piece of tubing while the first piece is straight and where the first piece of tubing is then formed to define the overall coil shape and then the first and second pieces of tubing internally sized by internal pressurization to also force the two pieces of tubing to intimate contact with each other. - However, it is still desirable to improve the already known technical solutions in the field of heat exchangers.
- It is therefore an object for the present invention to improve a tubing element for a heat exchanger means, a heat exchanger, the use of a tubing element to manufacture at least partially a heat exchanger means, the use of a heat exchanger to exchange heat and a method of manufacturing of a tubing element, in particular in that the efficiency of the heat exchange is increased and that the overall structure of the tubing element and the heat exchanger is improved and simplified and allows a more compact structure of a heat exchanger.
- The above object is solved according to the present invention by a tubing element for a heat exchanger means with the features of
claim 1. Accordingly, a tubing element for a heat exchanger means is provided, the tubing element being at least partially a rigid elongated heat exchanger tubing having at least a first end and at least a second end and having a first side wall and a second side wall, the first side wall and the second side wall being arranged substantially parallel to each other and the distance between the first side wall and the second side wall being considerably smaller than the width of the first side wall and the second side wall resulting in a substantially overall flat tubing structure, the tubing element having a plurality of fins on at least one of the outer surfaces of the first side wall and/or of the second side wall. - Such a tubing element for a heat exchanger means may be an elongated heat exchanger microchannel tube. Such an elongated heat exchanger microchannel tube may have a first and a second open end. There may be relatively large parallel opposite side walls of the microchannel tube with generally flat surfaces, which are joined with relatively small opposite edge walls between the side walls. These edge walls may be convexly curved.
- Heat transfer vapor or fluid may fill a heat exchanger microchannel tube and may flow from one end of the microchannel tube to the other end. The term microchannel is also known as microport.
- A second medium such as air may flow around the outer sides of the tubing element and may transport the heat from the tube away or vice versa.
- By providing a plurality of fins on at least one of the outer surfaces of the first side wall and/or of the second side wall the surface for heat exchange is increased. Thus, also the efficiency of the heat exchanger may be significantly improved.
- Moreover, it is possible that the width of the first side wall and the second side wall is approximately at least 10 times larger than the distance between the first side wall and the second side wall and/or that the first side wall and second side wall are connected respectively on both sides by a rounded connection wall.
- Additionally, it is possible that the tubing element is at least partially tilted and/or sloped and at least partially helically wound and/or twisted so as to form at least a part of a helical structure, whereby preferably the helical structure has an overall cylindrical structure and/or that the helical structure is formed in a cylindrical shape.
- Furthermore, it is possible that the tubing element has a plurality of fins on both of the outer surfaces of the first side wall and of the second side wall. By providing a plurality of fins on both of the outer surfaces of the first side wall and of the second side wall the advantage is achieved that the surface used for the heat exchange may be increased very easily and that the volume needed for the tubing element is not increased substantially.
- It is also possible that the fins are at least partially covered by covering wall and/or that the fins are monoblock fins.
- The fins may be substantially perpendicularly arranged on at least one of the outer surfaces of the first side wall and/or of the second side wall.
- Alternatively, the fins are inclined arranged on the at least one of the outer surfaces of the first side wall and/or of the second side wall, whereby exemplarily the angle between the fins and the outer surface is chosen within a range of approximately 15° to 85°.
- Additionally, the fins merely extend along the whole width of at least one of the outer surfaces of the first side wall and/or of the second side wall and/or are curved.
- Furthermore, the fins may be arranged along a curve extending along the whole width of at least one of the outer surfaces of the first side wall and/or of the second side wall and/or are curved, whereby between the fins being arranged along a curve is a pitch and/or gap.
- It is possible that the fins and/or the curve of fins and at least one of the connection walls are arranged such to each other that they enclose an angle. The angle may be substantially perpendicular. Alternatively, the angle may be chosen within range of about 15° to about 60° and is preferably chosen within a range of about 20° to about 25°. An angle of about 45° between the fins or the curve of fins and at least one of the connection walls is considered to be substantially neutral, in particular as a neutral arrangement with respect to the interference with e.g. fans or the like, which might be connected or used together with a heat exchanger means comprising such a tubing element.
- The fins and/or the curve of fins may be formed slightly concave or convex. In particular, the slightly concave or convex shape of the fins may be achieved by an offset of the center part of the middle section of the fins and/or the curve of fins with respect to the endpoints of the fins and/or the curve of fins within a range of about 0.5 mm to about 5 mm, preferably of about 1 mm to about 2 mm, most preferred of about 1.5 mm.
- It is preferred that the fins are arranged such that the medium flowing against the fins flows against a concave formed part of the fin.
- The fins may have a height chosen within a range of about 0.5 mm to about 5.0 mm, preferably about 2-3 mm.
- Further, it is possible that the fins are arranged in a plurality of rows, preferably substantially parallel rows and/or preferably along at least a part of the length of the tubing element.
- The tubing element may comprise at least one microchannel. Preferably several microchannels with a round or circular cross-section and/or several microchannels with an angular cross-section, exemplarily several microchannels with a triangular cross-section and/or several microchannels with quadrangular cross-section are provided.
- At least some of the microchannels may be arranged with an off-set to each other, whereby exemplarily all microchannels are arranged with an off-set to each other.
- The off-set may result in several chamfers and/or grooves within the first side wall and/or the second side wall.
- Furthermore, the tubing element may comprise at its a first end and at its second end a collecting portion which is reducing the width of the first side wall and the second side wall to a smaller width.
- Moreover, the present invention relates to a heat exchanger means with the features of
claim 10. Accordingly, a heat exchanger means is provided, the heat exchanger means having at least one tubing element according to any ofclaims 1 to 9. - Additionally, the heat exchanger may comprise several tubing elements and that the tubing elements are forming as a substantially overall cylindrical structure having a central longitudinal axis and that the tubing elements are spirally curved around the central longitudinal axis and interleaved in the structure.
- The heat exchanger means may be a radiator or a cooler or a condenser or an evaporator.
- Additionally, the present invention relates to the use of a tubing element to manufacture at least partially a heat exchanger means with the features of claim 13. Accordingly, a tubing element is used to manufacture at least partially a heat exchanger means according to claim 10 or 11 exemplarily by tilting and/or sloping and at least partially helically winding and/or twisting the tubing element so to form at least a part of a helical structure.
- Moreover, the present invention relates to the use of a heat exchanger means to exchange heat with the features of claim 14. Accordingly, a heat exchanger means is used, whereby the heat exchanger means is a heat exchanger means according to claim 10 or 11, to exchange heat, exemplarily to use a heat exchanger means as a radiator or as a cooler or as a condenser or as an evaporator.
- Furthermore, the present invention relates to a method of manufacturing of a tubing element with the features of claim 15. Accordingly, a tubing element according to any of
claims 1 to 9 is manufactured, whereby exemplarily the tubing element is received by using an extrusion process of a heat transfer material, whereby preferably the extrusion process is a single extrusion process and/or whereby preferably the heat exchanger material is at least partially aluminium or copper or an alloy thereof. - Further details and advantages of the present invention shall be described hereinafter with respect to the drawings:
- Fig. 1:
- A perspective view of tubing element according to the present invention in a first embodiment;
- Fig. 2:
- A perspective view of a tubing element according to a first embodiment of the present invention;
- Fig. 3:
- A further perspective view of the tubing element shown in
Figure 2 showing the angles for the slope and the tilt of the tubing element; - Fig. 4:
- The perspective view shown in
Figure 3 with further details; - Fig. 5:
- A perspective view of a tubing element according to the present invention and as shown in
Figure 2 together with connecting elements; - Fig. 6:
- A side elevation of the tubing element as shown in
Figures 2 to 5 ; - Fig. 7:
- A perspective view of a heat exchanger comprising a plurality of tubing elements;
- Fig. 8:
- A perspective view of a tubing element according to the present invention in a second embodiment;
- Fig. 9:
- A perspective view in detail of embodiment shown in
Figure 8 . - Fig. 10 a, b:
- The perspective view of a draining plate and the respective tubing element thereto; and
- Fig. 11:
- A perspective view of a further embodiment of a heat exchanger comprising the draining plate and the tubing element according to
Figures 10a , b. -
Figure 1 shows the perspective view of a first embodiment of thetubing element 10, however, withoutfins 60 or fins 60'. - The
tubing element 10 is a rigid elongated heat exchanger tube having afirst end 20 and asecond end 30. There are relatively large parallelopposite side walls 40 and 50 with generally flat surfaces. The opposite parallel arrangedside walls 40, 50 of the tubing element are joined with relatively smallopposite edge walls connection walls tubing element 10 is partially tilted and sloped and also helically wound and twisted so as to form at least a part of a helical structure. - The distance d between the
first side wall 40 and the second side wall 50 is considerably smaller than the width W of theside walls 40, 50. - There are relatively large parallel
opposite side walls 40 and 50 with generally flat surfaces. The opposite parallel arrangedside walls 40, 50 of the tubing element are joined with relatively smallopposite edge walls connection walls tubing element 10 is partially tilted and sloped and also helically wound and twisted so as to form at least a part of a helical structure. - The
opposite side walls 40 and 50 of the heatexchanger microchannel tube 10 are oppositely disposed in general parallel planes in the helix within thetube 10 there may be one or more media flow channels, which are formed between the oppositely disposedside walls 40, 50. A heat transfer vapor or fluid such as water or oil or refrigerant fills the heatexchanger microchannel tube 10 and flows from oneend 20 of themicrochannel tube 10 to theother end 30. Preferably, the resulting helix of themicrochannel tube 10 is formed in a cylindrical shape. -
Figure 2 shows a perspective view of a first embodiment of thetubing element 10. On bothouter surfaces first side wall 40 and the second side wall 50several fins 60 are arranged. - The
fins 60 may be monoblock fins and are inclined arranged respective to theouter surface first side wall 40 and a second side wall 50. The angle between the fins and theouter surface fins 60 merely extend along the whole width W of theouter surfaces first side wall 40 and the second side wall 50. - As can be seen e.g. in
Figure 5 and6 , thefins 60 are slightly curved. -
Figure 3 shows the defining angles, i.e. angle α1 defining a slope and angle β1 defining the tilt. Furthermore,Figure 3 shows the defining axes X, Y and Z and also the radius r. The heatexchanger microchannel tube 10 may be longitudinally curved around the central axis X into a helix. This axis X is shown inFigure 3 and is the central axis X of the overall and imaginary cylindrical shape of the helix. - As can be seen in
Figure 3 , thefins 60 follow the slope and the tilt. - Angle α1 defining the slope is defined as the angle α1 between axis X and Z. Angle β1 defining the tilt is defined as to angle β1 between axis X and Y. As can be seen in
Figure 3 , the radius r is the distance from axis X to the intersection point of axis Y and axis Z. - As can be further seen from
Figure 4 , thefins 60 have two defining angles Υ and δ. The angle Y is the angle which is enclosed by thefins 60 and theconnection walls Figures 2 ,5 and8 . The angle δ is the angle of thefin 60 and theouter surface first side wall 40 or the second side wall 50. - As can be seen from the further detail shown in
Figure 4 , the first distance a between twoadjacent fins 60 may be larger than a second distance b of theseadjacent fins 60. The first distance a may be used in the entry section of the gap defined by twoadjacent fins 60, i.e. the section for the entry of a heat transfer media flowing through the fins. So, thefins 60 are substantially parallel. - The
fins 60 according to the embodiment shown inFigures 2 to 6 are substantially perpendicular arranged on theouter surfaces first side wall 40 and of the second side wall 50. - This is, however, not mandatory. Alternatively, the
fins 60 may be inclined arranged on the at least one of theouter surfaces first side wall 40 and/or of the second side wall 50, whereby exemplarily the angle between thefins 60 and theouter surface - The
fins 60 merely extend along the whole width W of theouter surfaces first side wall 40 and/or of the second side wall 50 and are slightly curved. - Further, the
fins 60 are arranged in a plurality of parallel rows substantially along the whole length of thetubing element 10. - The
fins 60 and theconnection walls - However, this angle γ may be substantially perpendicular. Alternatively, this angle γ may be chosen within range of about 15° to about 60° and may be preferably chosen within a range of about 20° to about 25°. An angle γ of about 45° between the
fins 60 at least one of theconnection walls tubing element 10. - The
fins 60 are formed slightly concave or convex, which is, however, not mandatory. In particular, the slightly concave or convex shape of thefins 60 may be achieved by an offset of the center part of the middle section of thefins 60 with respect to the endpoints of thefins 60 within a range of about 0.5 mm to about 5 mm, preferably of about 1 mm to about 2 mm, most preferred of about 1.5 mm. In the embodiment shown inFigure 2 , the offset of the center part of the middle section of thefins 60 with respect to the endpoints of thefins 60 is about 1 mm. - The
fins 60 are arranged such that the medium flowing against the fins flows against a concave formed part of the fin. - Furthermore, the
fins 60 according to the embodiment shown inFigure 2 have a height of about 2.5 mm. Generally, thefins 60 may have a height chosen within a range of about 0.5 mm to about 5.0 mm, preferably about 2-3 mm. - At the ends 20, 30 of the
tubing element 10 collectingelements tubing element 10 to a broader diameter, i.e. the diameter of the tubular connectors ofcircular cross-sections -
Figure 7 is a perspective view of a heat exchanger means 100 comprising a plurality of a first set of interlaced sloped helicalmicrochannel tubing elements 10 with adjacent sloped and twisted similarly helically formedtubing elements 10 and a respective second set S2 inside of the first set S1. By this, a compact structure together with an increased surface for heat exchange is received. -
Figure 8 is a perspective view of the second embodiment of the tubing element according to the present invention. The second embodiment of the tubing element 10' is merely the same as the one shown inFigures 2 to 6 . However, a different kind of fins is used, i.e. fins 60'. The fins 60' are arranged along a curve extending substantially the whole width W of at least one of theouter surfaces sidewall 40 and sidewall 50 and as can be seen fromFigure 9 , between each fins 60' arranged along one curve a gap is provided. The fins 60' are arranged in a plurality of rows which are arranged parallel. - The fins 60' are according to the embodiment shown in
Figure 8 perpendicularly arranged on theouter surfaces first side wall 40 and of the second side wall 50. - Alternatively, the fins 60' may be inclined arranged on at least one of the
outer surfaces first side wall 40 and/or of the second side wall 50, whereby exemplarily the angle between the fins 60' and theouter surface 40, 50 is substantially perpendicular. - Furthermore, the fins 60' are arranged along a curve extending along the whole width W of the
outer surfaces first side wall 40 and/or of the second side wall 50 and are also curved, whereby between the fins 60' being arranged along a curve is a gap 62. - It is possible that the fins 60' and the curve of fins 60' and the
connection walls - However, this angle γ may be substantially perpendicular. Alternatively, this angle γ may be chosen within range of about 15° to about 60° and may be preferably chosen within a range of about 20° to about 25°. An angle γ of about 45° between the
fins 60 at least one of theconnection walls tubing element 10. The fins 60' and the curve of fins 60' is formed slightly concave. In particular, the slightly concave shape of the fins 60' is achieved by an offset of the center part of the middle section of the fins 60' and the curve of fins 60' with respect to the endpoints of the fins 60' and the curve of fins 60' within a range of about 0.5 mm to about 5 mm, preferably of about 1 mm to about 2 mm, most preferred of about 1.5 mm. - The fins 60' are arranged such that the medium flowing against the fins 60' flows against a concave formed part of the fins 60'.
- Furthermore, the fins 60' according to the embodiment shown in
Figure 8 have a height of about 3 mm. Generally, the fins 60' may have a height chosen within a range of about 0.5 mm to about 5.0 mm, preferably about 2-3 mm. - The curves of fins 60' are arranged in a plurality of substantially parallel rows along the tubing element.
-
Figure 9 is showing in detail embodiment of a tube 10' with fins 60' as shown inFigure 8 and having a plurality ofmicrochannels 70 with a square cross-section. -
Figure 10a shows in a perspective view a drainingplate 80 which is helically wound such that it can be attached to the helically wound heatexchanger microchannel tube 10 as shown inFigure 10b . - As can be further seen from
Figure 11 , several drainingplates 80 andheat exchanger tubes 10 may be arranged to a heat exchanger means 100 comprising a plurality of interlaced sloped and tilted helicalmicrochannel tubing elements 10 and drainingplates 80 between each of the pair ofadjacent tubing elements 10. - The use of draining
plates 80 is preferred in cases where the heat exchanger means 100 is an evaporator.
Claims (15)
- Tubing element (10, 10') for a heat exchanger means (100, 100'), the tubing element (10, 10') being at least partially a rigid elongated heat exchanger tubing having at least a first end (20) and at least a second end (30) and having a first side wall (40) and a second side wall (50), the first side wall (40) and the second side wall (50) being arranged substantially parallel to each other and the distance (d) between the first side wall (40) and the second side wall (50) being considerably smaller than the width (W) of the first side wall (40) and the second side wall (50) resulting in a substantially overall flat tubing structure, the tubing element (10, 10') having a plurality of fins (60, 60') on at least one of the outer surfaces (42, 52) of the first side wall (40) and/or of the second side wall (50).
- Tubing element (10, 10') according to claim 1,
characterized in that
the width (W) of the first side wall (40) and the second side wall (50) is approximately at least 10 times larger than the distance (d) between the first side wall (40) and the second side wall (50) and/or that the first side wall (40) and second side wall (50) are connected respectively on both sides by a rounded connection wall (45, 55). - Tubing element (10, 10') according to claim 1 or 2,
characterized in that
the tubing element (10, 10') is at least partially tilted and/or sloped and at least partially helically wound and/or twisted so as to form at least a part of a helical structure, whereby preferably the helical structure has an overall cylindrical structure and/or that the helical structure is formed in a cylindrical shape. - Tubing element (10, 10') according to any of the preceding claims, characterized in that
the tubing element (10, 10') has a plurality of fins (60, 60') on both of the outer surfaces (42, 52) of the first side wall (40) and of the second side wall (50). - Tubing element (10, 10') according to any of the preceding claims, characterized in that
the fins (60, 60') are at least partially covered by covering wall (80) and/or that the fins are monoblock fins (60, 60'). - Tubing element (10, 10') according to any of the preceding claims, characterized in that
the fins (60, 60') are substantially perpendicularly arranged on at least one of the outer surfaces (42, 52) of the first side wall (40) and/or of the second side wall (50). - Tubing element (10, 10') according to any of claims 1 to 5, characterized in that
the fins (60, 60') are inclined arranged on the at least one of the outer surfaces (42, 52) of the first side wall (40) and/or of the second side wall (50), whereby exemplarily the angle between the fins (60, 60') and the outer surface (42, 52) is chosen within a range of approximately 15° to 85° and/or that the fins (60, 60') and/or the curve of fins (60') and at least one of the connection walls (45, 55) are arranged such to each other that they enclose an angle. - Tubing element (10, 10') according to any of the preceding claims, characterized in that the fins (60) merely extend along the whole width (W) of at least one of the outer surfaces (42, 52) of the first side wall (40) and/or of the second side wall (50) and/or are curved.
- Tubing element (10') according to any of the preceding claims,
characterized in that
the fins (60') are arranged along a curve extending along the whole width (W) of at least one of the outer surfaces (42, 52) of the first side wall (40) and/or of the second side wall (50) and/or are curved, whereby between the fins (60') being arranged along a curve is a pitch and/or gap and/or that the fins (60, 60') are arranged in a plurality of rows, preferably substantially parallel rows and/or preferably along at least a part of the length of the tubing element (10'). - Heat exchanger means (100, 100') having at least one tubing element (10, 10') according to any of the preceding claims.
- Heat exchanger means (100, 100') according to claim 10,
characterized in that
several tubing elements (10, 10') and that the tubing elements (10) are forming an overall substantially cylindrical structure having a central longitudinal axis (X) and that the tubing elements (10, 10') are spirally curved around the central longitudinal axis (X) and interleaved in the structure. - Heat exchanger means (100, 100') according to claim 10 or 11,
characterized in that
the heat exchanger means (100, 100') is a condenser or an evaporator or a radiator or a cooler. - The use of a tubing element (10, 10') to manufacture at least partially a heat exchanger means (100, 100') according to claim 10 or 11, exemplarily by tilting and/or sloping and at least partially helically winding and/or twisting the tubing element (10, 10') so as to form at least a part of a helical structure.
- The use of a heat exchanger means (100, 100') according to claim 10 or 11 to exchange heat, exemplarily to use the heat exchanger means (100, 100') as a radiator or as a cooler as a condenser or as an evaporator.
- Method of manufacturing of a tubing element (10, 10') according to any of claims 1 to 9, whereby exemplarily the tubing element (10, 10') is received by using an extrusion process of a heat transfer material, whereby preferably the extrusion process is a single extrusion process and/or whereby preferably the heat transfer material is at least partially aluminium or copper or an alloy thereof.
Priority Applications (14)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12195014.1A EP2738504A1 (en) | 2012-11-30 | 2012-11-30 | Tubing element for a heat exchanger means |
PL13820973T PL2941610T3 (en) | 2012-11-30 | 2013-12-02 | Tubing element for a heat exchanger means |
KR1020157017245A KR102025459B1 (en) | 2012-11-30 | 2013-12-02 | Tubing element for a heat exchanger means |
MX2015006902A MX369021B (en) | 2012-11-30 | 2013-12-02 | Tubing element for a heat exchanger means. |
JP2015544607A JP6377628B2 (en) | 2012-11-30 | 2013-12-02 | Finned tube element, method for manufacturing the same, and heat exchanger provided with finned tube element |
PCT/IB2013/060570 WO2014083552A1 (en) | 2012-11-30 | 2013-12-02 | Tubing element for a heat exchanger means |
TR2018/08459T TR201808459T4 (en) | 2012-11-30 | 2013-12-02 | Piping element for a heat exchanger means. |
CA2893104A CA2893104C (en) | 2012-11-30 | 2013-12-02 | Tubing element for a heat exchanger means |
EP13820973.9A EP2941610B1 (en) | 2012-11-30 | 2013-12-02 | Tubing element for a heat exchanger means |
CN201380062801.4A CN104823012B (en) | 2012-11-30 | 2013-12-02 | Tube element for heat exchanger |
BR112015012635-9A BR112015012635B1 (en) | 2012-11-30 | 2013-12-02 | pipe element for heat exchanger means, heat exchanger means and method of manufacturing a pipe element |
ES13820973.9T ES2672642T3 (en) | 2012-11-30 | 2013-12-02 | Pipe element for a heat exchanger medium |
DK13820973.9T DK2941610T3 (en) | 2012-11-30 | 2013-12-02 | Pipe element for a heat exchanger |
CR20150333A CR20150333A (en) | 2012-11-30 | 2015-06-23 | TUBE ELEMENT FOR A HEAT EXCHANGE MEDIA |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP12195014.1A EP2738504A1 (en) | 2012-11-30 | 2012-11-30 | Tubing element for a heat exchanger means |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2738504A1 true EP2738504A1 (en) | 2014-06-04 |
Family
ID=47594339
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12195014.1A Withdrawn EP2738504A1 (en) | 2012-11-30 | 2012-11-30 | Tubing element for a heat exchanger means |
EP13820973.9A Active EP2941610B1 (en) | 2012-11-30 | 2013-12-02 | Tubing element for a heat exchanger means |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13820973.9A Active EP2941610B1 (en) | 2012-11-30 | 2013-12-02 | Tubing element for a heat exchanger means |
Country Status (12)
Country | Link |
---|---|
EP (2) | EP2738504A1 (en) |
JP (1) | JP6377628B2 (en) |
KR (1) | KR102025459B1 (en) |
CN (1) | CN104823012B (en) |
BR (1) | BR112015012635B1 (en) |
CA (1) | CA2893104C (en) |
DK (1) | DK2941610T3 (en) |
ES (1) | ES2672642T3 (en) |
MX (1) | MX369021B (en) |
PL (1) | PL2941610T3 (en) |
TR (1) | TR201808459T4 (en) |
WO (1) | WO2014083552A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2985546A3 (en) * | 2014-08-13 | 2016-06-29 | Mefa Befestigungs- und Montagesysteme GmbH | Heat transfer element; arrangement of a heat exchanging element for the production of an energy storage device |
WO2019064067A3 (en) * | 2017-09-26 | 2019-05-16 | Carlos Quesada Saborio | Tube joining |
EP3470743B1 (en) * | 2015-08-10 | 2023-07-19 | Mefa Befestigungs- und Montagesysteme GmbH | Heat transfer element |
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2013
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- 2013-12-02 TR TR2018/08459T patent/TR201808459T4/en unknown
- 2013-12-02 DK DK13820973.9T patent/DK2941610T3/en active
- 2013-12-02 JP JP2015544607A patent/JP6377628B2/en active Active
- 2013-12-02 BR BR112015012635-9A patent/BR112015012635B1/en active IP Right Grant
- 2013-12-02 CA CA2893104A patent/CA2893104C/en active Active
- 2013-12-02 ES ES13820973.9T patent/ES2672642T3/en active Active
- 2013-12-02 MX MX2015006902A patent/MX369021B/en active IP Right Grant
- 2013-12-02 KR KR1020157017245A patent/KR102025459B1/en active IP Right Grant
- 2013-12-02 CN CN201380062801.4A patent/CN104823012B/en active Active
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- 2013-12-02 WO PCT/IB2013/060570 patent/WO2014083552A1/en active Application Filing
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EP2985546A3 (en) * | 2014-08-13 | 2016-06-29 | Mefa Befestigungs- und Montagesysteme GmbH | Heat transfer element; arrangement of a heat exchanging element for the production of an energy storage device |
EP3156740A1 (en) * | 2014-08-13 | 2017-04-19 | Mefa Befestigungs- und Montagesysteme GmbH | Arrangement of a heat exchanging element for the production of an energy storage device |
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WO2019064067A3 (en) * | 2017-09-26 | 2019-05-16 | Carlos Quesada Saborio | Tube joining |
Also Published As
Publication number | Publication date |
---|---|
EP2941610B1 (en) | 2018-03-28 |
MX2015006902A (en) | 2015-11-16 |
CN104823012B (en) | 2018-08-21 |
TR201808459T4 (en) | 2018-07-23 |
CA2893104A1 (en) | 2014-06-05 |
MX369021B (en) | 2019-10-25 |
EP2941610A1 (en) | 2015-11-11 |
BR112015012635B1 (en) | 2020-12-29 |
WO2014083552A1 (en) | 2014-06-05 |
ES2672642T3 (en) | 2018-06-15 |
KR102025459B1 (en) | 2019-09-25 |
JP2015535591A (en) | 2015-12-14 |
CN104823012A (en) | 2015-08-05 |
CA2893104C (en) | 2019-08-20 |
JP6377628B2 (en) | 2018-08-22 |
BR112015012635A2 (en) | 2017-07-11 |
DK2941610T3 (en) | 2018-06-14 |
KR20150092210A (en) | 2015-08-12 |
PL2941610T3 (en) | 2018-10-31 |
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