CA2637845C - Heating device - Google Patents
Heating device Download PDFInfo
- Publication number
- CA2637845C CA2637845C CA2637845A CA2637845A CA2637845C CA 2637845 C CA2637845 C CA 2637845C CA 2637845 A CA2637845 A CA 2637845A CA 2637845 A CA2637845 A CA 2637845A CA 2637845 C CA2637845 C CA 2637845C
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- Prior art keywords
- spiral
- heating device
- housing
- heating medium
- sealing
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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
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
- F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
- F24H1/43—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes helically or spirally coiled
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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
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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
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
Abstract
The invention relates to a heating device comprising at least one heat exchanger (1, 2) that spirals helically around a spiral axis, is traversed by a heating medium and is configured as a flat tube comprising ends (3, 4) of the spiral on the feed flow and return flow sides and heating medium connections (5), said heat exchanger defining a corresponding spiral-shaped flow opening. According to the invention, a cap-type sealing housing (12) is attached in a fluid-tight manner to at least one end (3, 4) of the spiral and the heating medium connection (5) is situated on said housing. At least one end (3, 4) of the spiral is obliquely truncated in relation to the spiral axis and the end of the sealing housing (12) on the spiral side has a corresponding inverse oblique configuration. Preferably, the heating medium connection (5) on the cap-type sealing housing (12) runs in the direction of the spiral axis.
Description
Heating Device The invention relates to a heating device. More specifically, the present invention relates to a heating device of the type having at least one heat exchanger that spirals helically around a spiral axis.
A heating device of the type specified initially is known from DE 38 15 647 Al. This consists of at least one heat exchanger that spirals helically around a spiral axis, is traversed by a heating medium (in this case a coolant) and is configured as a flat tube comprising ends of the spiral on the feed flow and return flow sides and heating medium con-nections, said heat exchanger defining a corresponding spi-ral-shaped flow opening, wherein a cap-type sealing housing is attached in a fluid-tight manner to at least one end of the spiral and the heating medium connection is situated on said housing. Figure 1 of DE 38 15 647 Al shows a solution with a single spiral and Figure 2 shows a solution with an intertwined double spiral.
Another heating device is known from DE 102 11 489 Cl, where-in such heating devices fitted with double or multiple spi-rals as heat exchangers are particularly intended for higher power ranges. The two wound heat exchangers formed as flat tubes are intercalated in said heating device by welding to sealing walls (so-called plates) provided on both sides, in which corresponding indentations are made with reference to the gradient of the two wound flat tubes or the heat exchan-ger, wherein the open ends of the obliquely truncated flat tubes corresponding to the gradient there are connected to inlet and outlet openings in the plates (the oblique cut is necessary from the production technology aspect since the plates are produced by deep drawing so that a 900 angle is not possible). These plates must also be configured as hollow plates in order to form feed and return flow chambers with feed and return flow connections for heat consumption cir-cuits to be connected.
A heating device of the type specified initially is known from DE 38 15 647 Al. This consists of at least one heat exchanger that spirals helically around a spiral axis, is traversed by a heating medium (in this case a coolant) and is configured as a flat tube comprising ends of the spiral on the feed flow and return flow sides and heating medium con-nections, said heat exchanger defining a corresponding spi-ral-shaped flow opening, wherein a cap-type sealing housing is attached in a fluid-tight manner to at least one end of the spiral and the heating medium connection is situated on said housing. Figure 1 of DE 38 15 647 Al shows a solution with a single spiral and Figure 2 shows a solution with an intertwined double spiral.
Another heating device is known from DE 102 11 489 Cl, where-in such heating devices fitted with double or multiple spi-rals as heat exchangers are particularly intended for higher power ranges. The two wound heat exchangers formed as flat tubes are intercalated in said heating device by welding to sealing walls (so-called plates) provided on both sides, in which corresponding indentations are made with reference to the gradient of the two wound flat tubes or the heat exchan-ger, wherein the open ends of the obliquely truncated flat tubes corresponding to the gradient there are connected to inlet and outlet openings in the plates (the oblique cut is necessary from the production technology aspect since the plates are produced by deep drawing so that a 900 angle is not possible). These plates must also be configured as hollow plates in order to form feed and return flow chambers with feed and return flow connections for heat consumption cir-cuits to be connected.
For the sake of completeness, reference is also made to a heating device according to DE 10 2004 005 048 Al.
It is the object of the invention to simplify these relative-ly complex designs, especially to avoid hollow covering plates over the entire cross-section of the heating device and optionally to ensure as uniform as possible exposure of parallel-guided heat exchangers or flat tubes, and speci-fically associated with the proviso to provide overall more favourable manufacturing conditions.
In accordance with an embodiment of the present invention there is provided a heating device, comprising: at least one heat exchanger that spirals helically around a spiral axis, said at least one heat exchanger being traversed by a heating medium and configured as a flat tube comprising ends of the spiral on feed flow and return flow sides; and heating medium connections, said at least one heat exchanger defining a corresponding spiral-shaped flow opening, wherein a cap-type sealing housing is attached in a fluid-tight manner to at least one end of the spiral and the heating medium connection is situated on said housing, wherein the at least one end of the spiral is obliquely truncated in relation to the spiral axis and the end of the sealing housing on the spiral side has a corresponding inverse oblique configuration.
According to the invention, it is therefore provided that at least one end of the spiral is obliquely truncated in rela-tion to the spiral axis and the end of the sealing housing on the spiral side has a corresponding inverse oblique configu-ration, wherein the heating medium connection on the cap-type sealing housing is preferably aligned to that it is oriented in the direction of the spiral axis.
In other words, the inlet and outlet openings at the spiral ends are arranged in a plane oriented obliquely in relation to the flow direction, to which the sealing or distributor housing, cut correspondingly but in the opposite direction, is attached, i.e. according to the invention, an obliquely oriented plane (connecting plane) is provided between the spiral end the sealing housing. Particularly from the produc-tion technology point of view, this oblique cut facilitates the connection of the sealing housing to the spiral end since all the connecting edges are accessible to a welding process, for example, without further spreading of the spiral, which was not possible in spirals in the sense of DE 102 11 489 Cl or DE 10 2004 005 048 Al since the flow gap (heating gas flow gap) is relatively narrow in contrast to DE 38 15 647 Al.
It is the object of the invention to simplify these relative-ly complex designs, especially to avoid hollow covering plates over the entire cross-section of the heating device and optionally to ensure as uniform as possible exposure of parallel-guided heat exchangers or flat tubes, and speci-fically associated with the proviso to provide overall more favourable manufacturing conditions.
In accordance with an embodiment of the present invention there is provided a heating device, comprising: at least one heat exchanger that spirals helically around a spiral axis, said at least one heat exchanger being traversed by a heating medium and configured as a flat tube comprising ends of the spiral on feed flow and return flow sides; and heating medium connections, said at least one heat exchanger defining a corresponding spiral-shaped flow opening, wherein a cap-type sealing housing is attached in a fluid-tight manner to at least one end of the spiral and the heating medium connection is situated on said housing, wherein the at least one end of the spiral is obliquely truncated in relation to the spiral axis and the end of the sealing housing on the spiral side has a corresponding inverse oblique configuration.
According to the invention, it is therefore provided that at least one end of the spiral is obliquely truncated in rela-tion to the spiral axis and the end of the sealing housing on the spiral side has a corresponding inverse oblique configu-ration, wherein the heating medium connection on the cap-type sealing housing is preferably aligned to that it is oriented in the direction of the spiral axis.
In other words, the inlet and outlet openings at the spiral ends are arranged in a plane oriented obliquely in relation to the flow direction, to which the sealing or distributor housing, cut correspondingly but in the opposite direction, is attached, i.e. according to the invention, an obliquely oriented plane (connecting plane) is provided between the spiral end the sealing housing. Particularly from the produc-tion technology point of view, this oblique cut facilitates the connection of the sealing housing to the spiral end since all the connecting edges are accessible to a welding process, for example, without further spreading of the spiral, which was not possible in spirals in the sense of DE 102 11 489 Cl or DE 10 2004 005 048 Al since the flow gap (heating gas flow gap) is relatively narrow in contrast to DE 38 15 647 Al.
Starting from this assumption, the sealing or distributor housing in side view are preferably configured substantially as right-angled triangles, whose hypotenuse forms the connec-ting side for the spiral ends and the heating-medium connec-tion is located on their larger side.
The solution according to the invention is particularly in-tended for heating devices whose heat exchangers consist of at least two tube spirals for which it is therefore necessary to connect the participating flat tube spirals to one another hydraulically, seal them at their ends and provide common heating medium connections. However, it has been shown that the solution according to the invention is also suitable for heating devices which manage with only one spiral tube (that is one heat exchanger), for example, as a result of lower po-wer requirements.
However, in heating devices wherein at least two helically spiralling heat exchangers which are guided parallel to one another and intertwined with one another are provided and wherein the sealing housing is configured as a distributor housing and is attached in a liquid-tight manner to the ends of the spirals, it is furthermore particularly preferably provided according to the invention that the ends of the spi-rals of the heat exchangers are each arranged in pairs flush and adjacent to one another, wherein in each case edges of their adjacently extending walls are connected to one another in a liquid-tight manner.
Unlike DE 38 15 647 Al, the heating device according to the invention particularly has the function of a heating boiler (see again on this matter DE 102 11 489 Cl and DE 10 2004 005 048 Al). Accordingly, it is preferably provided that that the at least one heat exchanger encloses a combustion chamber which, when viewed in the direction of the spiral axis, is delimited by respectively one sealing wall wherein a housing formed from a jacket part and the sealing walls surrounds the heat exchanger forming an exhaust gas chamber.
The solution according to the invention is particularly in-tended for heating devices whose heat exchangers consist of at least two tube spirals for which it is therefore necessary to connect the participating flat tube spirals to one another hydraulically, seal them at their ends and provide common heating medium connections. However, it has been shown that the solution according to the invention is also suitable for heating devices which manage with only one spiral tube (that is one heat exchanger), for example, as a result of lower po-wer requirements.
However, in heating devices wherein at least two helically spiralling heat exchangers which are guided parallel to one another and intertwined with one another are provided and wherein the sealing housing is configured as a distributor housing and is attached in a liquid-tight manner to the ends of the spirals, it is furthermore particularly preferably provided according to the invention that the ends of the spi-rals of the heat exchangers are each arranged in pairs flush and adjacent to one another, wherein in each case edges of their adjacently extending walls are connected to one another in a liquid-tight manner.
Unlike DE 38 15 647 Al, the heating device according to the invention particularly has the function of a heating boiler (see again on this matter DE 102 11 489 Cl and DE 10 2004 005 048 Al). Accordingly, it is preferably provided that that the at least one heat exchanger encloses a combustion chamber which, when viewed in the direction of the spiral axis, is delimited by respectively one sealing wall wherein a housing formed from a jacket part and the sealing walls surrounds the heat exchanger forming an exhaust gas chamber.
Apart from the fact that the cap-type sealing or distributor housing with its heating medium connections can first be manufactured independently of the heat exchanger spirals, and on the spirals themselves, apart from the liquid-tight con-nection of their adjacently running walls, there is no need for overflow openings or other particular manufacturing in-terventions, the configuration of the two heat exchanger spi-rals according to the invention as an essential element of the heat exchanger, fulfils a double function, i.e. firstly the hydraulic connection of the two spirals is made by the distributor housing which at the same time forms a convenient approach for the feed flow and return flow connections pre-ferably oriented in the direction of the spiral axis and secondly, the heating medium return flow is fed directly and in a concentrated manner to the two spiral ends or on the feed flow side, the heating medium feed flow is removed accordingly in a concentrated manner. In addition, since the previous hollow plates as in DE 10 2004 005 048 Al can be eliminated, no gradient-matched connection deformations for the spiral ends need be taken into account at the sealing walls for the combustion chamber, but merely simple reach-through openings for the heating medium connections which, as mentioned, run parallel to the axis of the combustion chamber on the heating device.
In the section viewed transversely to the direction of flow of the heating medium, the cap-type sealing or distributor housing is configured as substantially corresponding to the opening cross-section of the two spiral ends, i. e. the two cap-type distributor housing occupy virtually no additional space and in this respect, constitute merely a continuation of the spiral ends on the external contour side.
Furthermore, the distributor housing is arranged in relation to the return flow supply and also the outflowing feed flow starting from the lower flat tube or the lower flat tube spiral with its hypotenuse ascending.
In the section viewed transversely to the direction of flow of the heating medium, the cap-type sealing or distributor housing is configured as substantially corresponding to the opening cross-section of the two spiral ends, i. e. the two cap-type distributor housing occupy virtually no additional space and in this respect, constitute merely a continuation of the spiral ends on the external contour side.
Furthermore, the distributor housing is arranged in relation to the return flow supply and also the outflowing feed flow starting from the lower flat tube or the lower flat tube spiral with its hypotenuse ascending.
In order to optimise the flow distribution inside the distri-butor housing in relation to the spirals, the sealing walls of the distributor housing opposite to the attached spiral ends are advantageously configured as concavely curved or concavely profiled on the inside.
At the same time, the sealing or distributor housing can be configured in the form of deep-drawn parts or also in such a manner that the distributor housings are each formed from a sheet metal blank which is to be folded and corresponds to their final shape. It is preferably provided that the sealing housing is configured in the form of a cast part, in particu-lar a precision cast part.
The heating device according to the invention will be explained in detail hereinafter with reference to the drawings of exemplary embodiments:
In the figures (partially schematic) Figure 1 shows a simplified section through the actual heat exchanger of the heating device;
Figure 2 shows a corresponding section according to Fi-gure 1 in the embodiment according to the in-vention;
Figure 2A shows a sheet metal blank for forming distri-butor housings;
Figure 3 shows a perspective view of one end of the double spiral;
Figure 4 shows the end of the double spiral according to Figure 3 with attached distributor housing (not yet welded on);
Figure 5 shows a diagram corresponding to that of Figure 4 showing one spiral end in a contour-matched embodiment of the distributor housing (preci-sion casting);
Figure 6 shows an oblique section along the line A-A in Figure 5;
Figure 7 shows a perspective overall view of the heat exchanger of the heating device;
Figure 8 also shows a perspective and simplified view of the entire heating device without external ac-cessories;
Figure 9 shows a perspective view of a heat exchanger formed from only one spiral with attached sea-ling housing; and Figure 10 shows an embodiment of the sealing housing made of precision casting.
According to the exemplary embodiment as before and with re-ference to Figures 1 to 8, the heating device according to the invention consists of two helically spiralling heat ex-changers 1, 2, traversed by a heating medium and defining a correspondingly spiralled flow gap S for heating gases, which heat exchangers are guided parallel to one another and into one another as flat tubes F or are arranged so that they are screwed into one another to a certain extent.
The heat exchangers 1, 2, which thus form a double spiral, each have two spiral ends 3, 4; 3', 4' on the return flow and feed flow sides (see Figures 1, 2), wherein the two heat exchangers 1, 2 in hydraulic communication with one another in relation to heating medium connections 5 enclose a cylindrical combustion chamber BR which, when viewed axially (i. e. in the direction of the spiral axis), is delimited at both ends by a sealing wall 6, 7, of which one serves as a connecting wall 6 for a burner B. A housing 8 formed from a jacket part 9 and the walls 6,7 (shown only schematically in Figure 1), encloses the two heat exchangers 1, 2 to form an exhaust gas chamber 11 provided with an exhaust gas connec-tion 10 (see Figure 8), which is also only indicated schema-tically in Figure 1.
At the same time, the sealing or distributor housing can be configured in the form of deep-drawn parts or also in such a manner that the distributor housings are each formed from a sheet metal blank which is to be folded and corresponds to their final shape. It is preferably provided that the sealing housing is configured in the form of a cast part, in particu-lar a precision cast part.
The heating device according to the invention will be explained in detail hereinafter with reference to the drawings of exemplary embodiments:
In the figures (partially schematic) Figure 1 shows a simplified section through the actual heat exchanger of the heating device;
Figure 2 shows a corresponding section according to Fi-gure 1 in the embodiment according to the in-vention;
Figure 2A shows a sheet metal blank for forming distri-butor housings;
Figure 3 shows a perspective view of one end of the double spiral;
Figure 4 shows the end of the double spiral according to Figure 3 with attached distributor housing (not yet welded on);
Figure 5 shows a diagram corresponding to that of Figure 4 showing one spiral end in a contour-matched embodiment of the distributor housing (preci-sion casting);
Figure 6 shows an oblique section along the line A-A in Figure 5;
Figure 7 shows a perspective overall view of the heat exchanger of the heating device;
Figure 8 also shows a perspective and simplified view of the entire heating device without external ac-cessories;
Figure 9 shows a perspective view of a heat exchanger formed from only one spiral with attached sea-ling housing; and Figure 10 shows an embodiment of the sealing housing made of precision casting.
According to the exemplary embodiment as before and with re-ference to Figures 1 to 8, the heating device according to the invention consists of two helically spiralling heat ex-changers 1, 2, traversed by a heating medium and defining a correspondingly spiralled flow gap S for heating gases, which heat exchangers are guided parallel to one another and into one another as flat tubes F or are arranged so that they are screwed into one another to a certain extent.
The heat exchangers 1, 2, which thus form a double spiral, each have two spiral ends 3, 4; 3', 4' on the return flow and feed flow sides (see Figures 1, 2), wherein the two heat exchangers 1, 2 in hydraulic communication with one another in relation to heating medium connections 5 enclose a cylindrical combustion chamber BR which, when viewed axially (i. e. in the direction of the spiral axis), is delimited at both ends by a sealing wall 6, 7, of which one serves as a connecting wall 6 for a burner B. A housing 8 formed from a jacket part 9 and the walls 6,7 (shown only schematically in Figure 1), encloses the two heat exchangers 1, 2 to form an exhaust gas chamber 11 provided with an exhaust gas connec-tion 10 (see Figure 8), which is also only indicated schema-tically in Figure 1.
For such a heating device having two spirals it is now essen-tial that the spiral ends 3, 4, 3', 4' of the two flat tubes F forming the heat exchangers 1, 2 are each arranged in pairs flush and adjacent to one another and the edges R (Figure 3) of their adjacently extending walls W are connected to one another in a liquid-tight manner, preferably welded (the thick black line represents the welded seam).
For the purpose of hydraulic connection of the two flat tubes F, the spiral ends 3, 4, 3', 4' on the feed and return flow sides are jointly attached in a liquid tight manner to respectively one cap-type sealing housing 12 which is open toward the flat tubes F and is configured as a distributor housing, each distributor housing being provided with respec-tively one of the heating medium connections 5.
As can be seen from Figures 2 to 5 in particular, the cap-type distributor housings are configured in the section viewed transversely to the direction of flow of the heating medium as substantially corresponding to the opening cross-section of the two spiral ends 3, 4, 3', 4' in order to take up as little space as possible.
Likewise with reference to Figures 4 to 6, the inlet and outlet openings 14 at the spiral ends 3, 4, 3', 4' are arran-ged according to the invention in a plane E oriented ob-liquely in relation to the direction of flow (see Figure 2), to which the distributor housings cut correspondingly ob-liquely in the opposite direction are attached, i.e. pre-ferably welded on.
Thus, in side view the sealing housings 12 substantially form right-angled triangles whose hypotenuse H forms the connec-ting side for the spiral ends 3, 4, 3', 4', the relevant hea-ting medium connection 5 being disposed on the larger side K
in each case.
For the purpose of hydraulic connection of the two flat tubes F, the spiral ends 3, 4, 3', 4' on the feed and return flow sides are jointly attached in a liquid tight manner to respectively one cap-type sealing housing 12 which is open toward the flat tubes F and is configured as a distributor housing, each distributor housing being provided with respec-tively one of the heating medium connections 5.
As can be seen from Figures 2 to 5 in particular, the cap-type distributor housings are configured in the section viewed transversely to the direction of flow of the heating medium as substantially corresponding to the opening cross-section of the two spiral ends 3, 4, 3', 4' in order to take up as little space as possible.
Likewise with reference to Figures 4 to 6, the inlet and outlet openings 14 at the spiral ends 3, 4, 3', 4' are arran-ged according to the invention in a plane E oriented ob-liquely in relation to the direction of flow (see Figure 2), to which the distributor housings cut correspondingly ob-liquely in the opposite direction are attached, i.e. pre-ferably welded on.
Thus, in side view the sealing housings 12 substantially form right-angled triangles whose hypotenuse H forms the connec-ting side for the spiral ends 3, 4, 3', 4', the relevant hea-ting medium connection 5 being disposed on the larger side K
in each case.
At the same time, in order to optimise the inflow and outflow relationships for the heating medium, the sealing housing 12 is preferably arranged with reference to the return flow gui-dance and Figure 2, starting from the lower flat tube F or the heat exchanger 2, with its hypotenuse H ascending.
For the same reason, i.e. for optimisation, the sealing walls 13 of the distributor housing 12 opposite to the spiral ends 3, 4, 31, 4' are configured as concavely curved or concavely profiled on the inside, as is illustrated in the oblique sec-tion view according to Figures 6 and 10.
The previously explained sealing housing 12 can easily be ma-nufactured as deep-drawn parts on account of their simplicity but can also be formed from a sheet metal blank which is to be folded to correspond to their final shape, one of which is shown in Figure 2A for a sealing housing 12 which is triangular in side view, this being the preferred shape, since an optimised distribution of the return flow and the feed flow of the heating medium at the two spiralled heat ex-changers 1, 2 is thereby obtained with reference to Figure 2.
As already mentioned, however, it is also possible to produce or form the distributor caps of precision casting, for examp-le, wherein the respective heating medium connection 5 is ad-vantageously formed in one piece at the same time (see Figure 10).
The same applies to heating device whose heat exchanger con-sists of only a single flat tube spiral 1 which is illustra-ted in Figure 9 for completeness, wherein this representation comprises the embodiment according to the invention in which the spiral ends 3, 4 of the flat tube F on the return and feed slow sides are obliquely truncated and the sealing hou-sing 12 attached thereto has a corresponding inverse ob-liquely truncated configuration, forming a flat triangle in side view. Figure 10 shows a preferred embodiment of the sea-ling housing 12 as a precision casting including the heating medium connection 5.
For the same reason, i.e. for optimisation, the sealing walls 13 of the distributor housing 12 opposite to the spiral ends 3, 4, 31, 4' are configured as concavely curved or concavely profiled on the inside, as is illustrated in the oblique sec-tion view according to Figures 6 and 10.
The previously explained sealing housing 12 can easily be ma-nufactured as deep-drawn parts on account of their simplicity but can also be formed from a sheet metal blank which is to be folded to correspond to their final shape, one of which is shown in Figure 2A for a sealing housing 12 which is triangular in side view, this being the preferred shape, since an optimised distribution of the return flow and the feed flow of the heating medium at the two spiralled heat ex-changers 1, 2 is thereby obtained with reference to Figure 2.
As already mentioned, however, it is also possible to produce or form the distributor caps of precision casting, for examp-le, wherein the respective heating medium connection 5 is ad-vantageously formed in one piece at the same time (see Figure 10).
The same applies to heating device whose heat exchanger con-sists of only a single flat tube spiral 1 which is illustra-ted in Figure 9 for completeness, wherein this representation comprises the embodiment according to the invention in which the spiral ends 3, 4 of the flat tube F on the return and feed slow sides are obliquely truncated and the sealing hou-sing 12 attached thereto has a corresponding inverse ob-liquely truncated configuration, forming a flat triangle in side view. Figure 10 shows a preferred embodiment of the sea-ling housing 12 as a precision casting including the heating medium connection 5.
Reference list 1 Heat exchanger 2 Heat exchanger 3 Spiral end 3' Spiral end 4 Spiral end 4' Spiral end 5 Heating medium connection 6 Sealing wall 7 Sealing wall 8 Housing 9 Jacket part 10 Exhaust gas connection 11 Exhaust gas chamber 12 Sealing housing 13 Sealing wall 14 Inlet and outlet opening = Burner BR Combustion chamber = Plane = Flat tube H Hypotenuse = Side = Edge RL Return flow = Flow gap VL Feed flow = Wall
Claims (14)
1. A heating device, comprising: at least one heat exchanger that spirals helically around a spiral axis, said at least one heat exchanger being traversed by a heating medium and configured as a flat tube comprising ends of the spiral on feed flow and return flow sides; and heating medium connections, said at least one heat exchanger defining a corresponding spiral-shaped flow opening, wherein a cap-type sealing housing is attached in a fluid-tight manner to at least one end of the spiral and the heating medium connection is situated on said housing, wherein the at least one end of the spiral is obliquely truncated in relation to the spiral axis and the end of the sealing housing on the spiral side has a corresponding inverse oblique configuration.
2. The heating device according to claim 1, wherein at least two helically spiraling heat exchangers which are guided parallel to one another and inter-twined with one another are provided, wherein the sealing housing is configured as a distributor housing and is set in a liquid-tight manner against the ends of the spirals, wherein the ends of the spirals of the heat exchangers are each arranged in pairs flush and adjacent to one another, wherein in each case edges of adjacently extending walls of the heat exchangers are connected to one another in a liquid-tight manner.
3. The heating device according to claim 2, wherein the edges are connected flush to one another.
4. The heating device according to claim 3, wherein the edges are connected flush to one another by welding.
5. The heating device according to any one of claims 1 to 4, wherein the heating medium connection on the cap-type sealing housing is aligned so that it is oriented in the direction of the spiral axis.
6. The heating device according to any one of claims 1 to 5, wherein the sealing housing in side view and therefore perpendicular to the spiral axis is configured substantially as a right-angled triangle, wherein the hypotenuse of the triangle is connected in a liquid-tight manner to the end of the spiral.
7. The heating device according to claim 6, wherein the heating medium connection is arranged on a larger side of the triangle.
8. The heating device according to any one of claims 1 to 7, wherein the sealing housing including the heating medium connection is configured in the form of a cast part.
9. The heating device according to claim 8, wherein the cast part is a precision cast part.
10. The heating device according to any one of claims 1 to 9, wherein the sealing housing is configured as sheet metal parts and the heating medium connection is configured as connecting pieces set against the sheet metal parts.
11. The heating device according to any one of claims 1 to 7, wherein the sealing housing is configured in the form of a deep-drawn part.
12. The heating device according to any one of claims 1 to 11, wherein when viewed in section transversely to the flow direction of the heating medium, the cap-type sealing housing is configured as substantially corresponding to one or a multiple of the spiral-end opening cross-section.
13. The heating device according to any one of claims 1 to 12, wherein sealing walls are provided opposite to the spiral ends in the sealing housing, said sealing walls configured as concavely curved at least on the heating medium side.
14. The heating device according to any one of claims 1 to 13, wherein the at least one heat exchanger encloses a combustion chamber which, when viewed in the direction of the spiral axis, is delimited by respectively one sealing wall, wherein a housing formed from a jacket part and the sealing wall surrounds the heat exchanger forming an exhaust gas chamber.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006004900.4 | 2006-02-03 | ||
| DE102006004900A DE102006004900A1 (en) | 2006-02-03 | 2006-02-03 | heater |
| PCT/DE2007/000216 WO2007087801A2 (en) | 2006-02-03 | 2007-02-02 | Heating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2637845A1 CA2637845A1 (en) | 2007-08-09 |
| CA2637845C true CA2637845C (en) | 2014-10-07 |
Family
ID=38229686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2637845A Active CA2637845C (en) | 2006-02-03 | 2007-02-02 | Heating device |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20100044011A1 (en) |
| EP (1) | EP1979696B1 (en) |
| AT (1) | ATE553346T1 (en) |
| CA (1) | CA2637845C (en) |
| DE (1) | DE102006004900A1 (en) |
| WO (1) | WO2007087801A2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008014523A1 (en) * | 2008-03-15 | 2009-09-17 | Robert Bosch Gmbh | heater |
| DE102008035852A1 (en) * | 2008-08-01 | 2010-02-04 | Herbert Kannegiesser Gmbh | Device for heating a heat carrier for in particular laundry machines and preferred uses of the device |
| DE102009043288A1 (en) | 2009-09-29 | 2011-04-14 | Viessmann Werke Gmbh & Co Kg | heater |
| DE102010051663A1 (en) | 2010-11-17 | 2012-05-24 | Liebherr-Hydraulikbagger Gmbh | implement |
| DE102010051664A1 (en) * | 2010-11-17 | 2012-05-24 | Liebherr-Hydraulikbagger Gmbh | implement |
| DE102011010444A1 (en) | 2011-02-04 | 2012-08-09 | Viessmann Werke Gmbh & Co Kg | Heating boiler has coil tube having coil tube ends for hydraulically connecting coil tube portions to supply and discharge ports and terminating hydraulic connection of coil tube portions respectively |
| RU2553007C1 (en) * | 2013-12-25 | 2015-06-10 | Юрий Яковлевич Печенегов | Waste heat recovery unit |
| WO2016095293A1 (en) * | 2014-12-15 | 2016-06-23 | 刘坚 | Barrel-shaped component and container and electric motor housing based thereon |
| DE102015118094A1 (en) | 2015-10-23 | 2017-04-27 | Viessmann Werke Gmbh & Co Kg | Heat transfer device |
| IT202100025346A1 (en) * | 2021-10-04 | 2023-04-04 | Condevo S P A | TUBE WINDING FOR A GAS HEAT EXCHANGE CELL FOR A BOILER |
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| US1485770A (en) * | 1922-03-20 | 1924-03-04 | Mare Baltzar E L De | Regenerator |
| US1968890A (en) * | 1932-11-05 | 1934-08-07 | Cutter Mfg Company | Fire screen |
| US2566310A (en) * | 1946-01-22 | 1951-09-04 | Hydrocarbon Research Inc | Tray type heat exchanger |
| NL6801838A (en) * | 1967-03-07 | 1968-09-09 | ||
| CA878266A (en) * | 1969-04-21 | 1971-08-17 | Brants Henry | Heat exchanger |
| SE423147B (en) * | 1977-04-28 | 1982-04-13 | Elof Viktor Asman | DEVICE FOR HEALTHMASTERS INCLUDING HEATING SWITCHING WHICH Separates A HEATING GAS FROM ANOTHER MEDIUM TO BE HEATED |
| NL8102795A (en) * | 1981-06-10 | 1983-01-03 | Parca Norrahammar Ab | EQUIPPED TUBES OF HEAT EXCHANGER. |
| SE467321B (en) * | 1982-02-08 | 1992-06-29 | Elge Ab | SPIRAL HEAT EXCHANGER THEN MOVED HAS AATMINSTONE PARTIAL PLANA SIDOYTOR |
| US4484561A (en) * | 1982-09-14 | 1984-11-27 | Crescent Metal Products, Inc. | Gas convection oven |
| US5191911A (en) * | 1987-03-18 | 1993-03-09 | Quality Tubing, Inc. | Continuous length of coilable tubing |
| US4863091A (en) * | 1987-03-18 | 1989-09-05 | Quality Tubing, Inc. | Method and apparatus for producing continuous lengths of coilable tubing |
| DE3815647A1 (en) * | 1987-06-05 | 1988-12-22 | Sueddeutsche Kuehler Behr | Round heat exchanger, in particular for refrigerants (refrigerating media) of air conditioners |
| JPH01179813A (en) * | 1988-01-09 | 1989-07-17 | Daikichi Hajiki | Waste tire combustion method and its device |
| DE3902025A1 (en) * | 1988-01-26 | 1989-07-27 | Vaillant Joh Gmbh & Co | Method and devices for producing a mixture composed of burnable gas and combustion air which is to be supplied to a combustion process |
| JP2679930B2 (en) * | 1993-02-10 | 1997-11-19 | 昇 丸山 | Hot water supply device |
| US5607487A (en) * | 1993-03-17 | 1997-03-04 | Taylor; Leland T. | Bottom feed - updraft gasification system |
| DE10026548C1 (en) * | 2000-05-27 | 2001-11-22 | Viessmann Werke Kg | Coil gap heat exchanger, especially for boilers, has coil mounted on ring shaped support with gas flow openings |
| US6918882B2 (en) * | 2001-10-05 | 2005-07-19 | Scimed Life Systems, Inc. | Guidewire with stiffness blending connection |
| US6702762B2 (en) * | 2001-12-27 | 2004-03-09 | Advanced Cardiovascular Systems, Inc. | Apparatus and method for joining two guide wire core materials without a hypotube |
| DE10211489C1 (en) * | 2002-03-15 | 2003-06-26 | Viessmann Werke Kg | Calorific value heating boiler has feed and return coils connected to end plates of housing which have water connections |
| US6866642B2 (en) * | 2002-11-25 | 2005-03-15 | Advanced Cardiovascular Systems, Inc. | Enhanced method for joining two core wires |
| FR2847972B1 (en) * | 2002-11-29 | 2005-03-04 | Realisation Mecaniques Engenee | HEAT EXCHANGER AND DEVICE FOR PRODUCING HOT WATER |
| DE102004005048A1 (en) * | 2004-01-30 | 2005-09-01 | Viessmann Werke Gmbh & Co Kg | heater |
| ATE472080T1 (en) * | 2004-04-23 | 2010-07-15 | Aarhuskarlshamn Denmark As | SYSTEM AND HEAT EXCHANGER FOR INCREASING THE TEMPERATURE OF A SUBSTANCE THAT INITIALLY OCCURS IN AN AT LEAST PARTIALLY SOLID STATE IN A CONTAINER |
| DE102004023711B3 (en) * | 2004-05-11 | 2005-10-13 | Viessmann Werke Gmbh & Co Kg | Heating apparatus for space heating has heat exchanger with connectors running axially at both ends, to which at least two hydraulic turning regions are connected |
| US7998090B2 (en) * | 2004-08-31 | 2011-08-16 | Abbott Cardiovascular Systems Inc. | Guide wire with core having welded wire segments |
| JP2006234254A (en) * | 2005-02-24 | 2006-09-07 | Sanyo Electric Co Ltd | Heat exchanger and heat pump type hot water supply device using the same |
| DE202005011633U1 (en) * | 2005-07-20 | 2006-11-30 | Viessmann Werke Gmbh & Co Kg | heater |
| FR2929389B1 (en) * | 2008-03-27 | 2013-01-18 | 2 C | HEAT EXCHANGER FOR HYDROTHERMAL OXIDATION TREATMENT FACILITY |
-
2006
- 2006-02-03 DE DE102006004900A patent/DE102006004900A1/en not_active Withdrawn
-
2007
- 2007-02-02 AT AT07721886T patent/ATE553346T1/en active
- 2007-02-02 EP EP07721886A patent/EP1979696B1/en active Active
- 2007-02-02 US US12/278,065 patent/US20100044011A1/en not_active Abandoned
- 2007-02-02 WO PCT/DE2007/000216 patent/WO2007087801A2/en active Application Filing
- 2007-02-02 CA CA2637845A patent/CA2637845C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007087801A3 (en) | 2007-09-20 |
| DE102006004900A1 (en) | 2007-08-16 |
| ATE553346T1 (en) | 2012-04-15 |
| EP1979696B1 (en) | 2012-04-11 |
| US20100044011A1 (en) | 2010-02-25 |
| CA2637845A1 (en) | 2007-08-09 |
| EP1979696A2 (en) | 2008-10-15 |
| WO2007087801A2 (en) | 2007-08-09 |
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Legal Events
| Date | Code | Title | Description |
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| EEER | Examination request |