DE2306559A1 - CONVECTOR AND MANUFACTURING PROCESS - Google Patents

Description

Dipi.-ing. Ralf Minetti

Patent attorney

HAMBURGI 2306559

Balund dam 15
TeL 3351 15

Ernest Stich

84, avenue des Communes Reunies

1212 Grand Lancy, Geneve (Switzerland)

Urs Dreier-Saner

Kleinlutzel, Frohmatt Soleure (Switzerland)

Rstellungsverfahren convector and F τ

The invention relates to a convector which can be fastened to a pipe of a heating, ventilation, cooling or air conditioning system Lamellae and a method of making such a convector.

The area of application for equipped with such convectors Includes heating, ventilating, cooling or air conditioning systems for example residential or office buildings, commercial rooms or vehicles of all kinds Convector as a convector radiator, in a cooling system, on the other hand, as a convector cold exchanger to dissipate heat.

Convectors with fins attached to a pipe are already known. In the known designs, the slats provided with a central recess which has a cylindrical surface on its circumference and on this in Should be in contact with the outside of the tube passed through the recess. When used as a radiator The result for the heat transfer from the tube to the lamella is the highest value if the cylindrical surface is at all Places in contact with the pipe. In many cases, however, it can be observed that due to thermal expansion

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ORIGINAL INSPSCTED

the lamella an enlargement or deformation of the measuring by it s, -der.Ausnehmung occurs .verkleinert whereby the contact area between fin and tube, and accordingly the heat .--- transition to the sipe decreases and the convector is lowered.

Known designs of convectors with fins consist of a tube on which the generally corrugated Slats are attached parallel to each other at mutual distances of a few millimeters. These convectors are designed in a housing that is open at the bottom and top, which forms a chimney in which air flows through

vection is circulated. However, with these convectors it is necessary that each individual convector is connected, for example, to the heating system via connectors and a valve will.

The invention is based on the object, while avoiding the aforementioned disadvantages of a group consisting of lamellae Kohvektor whose slats are even after a long operating time even in perfect heat transfer contact with the flow-through of the heating or cooling medium pipe ₅ and a method for rational production of convectors To create heating, ventilation, cooling or air conditioning systems.

The proposed to solve the problem convector with a heating, ventilation, cooling or on a pipe Air conditioning attachable slats is characterized according to the invention in that at least some slats with devices are provided, which give the slat an inherent elasticity, due to which this at least partially against the Surface of the tube is held pressed.

According to a further embodiment of the invention can the convector be designed in such a way that a multitude

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slats arranged parallel to one another on a cover plate are attached and each have a cutout in which a tube intended for circulating a heating or cooling medium is inserted. The top of the cover plate can be connected to a wall by means of an upper cladding having openings.

Furthermore, the lamellae can be configured in a different manner at least partially in a plastic, in particular Poured in synthetic resin compound and held parallel to one another by this, all lamellae each have a recess extending to the edge on their free leg and the recesses of all the lamellas can be aligned with one another and slipped onto a heating pipe.

The proposed method for producing such a convector is characterized according to the invention in that first a pipe intended to circulate a heating or cooling medium is laid, then provided with a cutout Lamellas are attached to a cover plate and attached to their cutouts on the tube and the cover plate Is attached at its upper end to a cladding firmly connected to a wall or the like. When using the With the convector as a radiator, the heating pipe and the rest of the convector can first be laid during the structural work be installed during the final construction.

The convector according to the invention which can be used as a heat or cold exchanger is illustrated below with reference to the in the drawings schematically illustrated embodiments explained in more detail.

Fig. 1 is a partial perspective view of a first embodiment of the convector.

Fig. 2 is a cross section along the line II-II of Fig. 1.

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Figure 3 is an elevational cross-section through a second embodiment.

Fig. U. is an elevation cross-section through a third embodiment.

Figure 5 is a perspective, elevational cross-section through another embodiment.

FIG. 6 shows in section a detail of the convector from FIG. 5.

FIG. 7 is a front view of the convector of FIG. 5.

8 is a perspective view of another embodiment of an on-board Convector element attached to the heating pipe.

FIG. 9 shows, in the same view as FIG. 8, a

Another embodiment of the convector element represent.

Figure 10 is an elevational cross-section through another Embodiment of the convector element.

Fig. 11 shows diagrammatically and in longitudinal section two lamellas of the embodiment lying next to one another of Fig. 8 before attachment of the slats to the side plate.

FIG. 12 is a section along line V-V of FIG. 8.

FIG. 13 is a plan view of part of the convector element shown in FIG.

In Figures 1-4 of the drawings, only "one or two lamellae in the assembled position on the tube of the Convector shown. It goes without saying that a complete convector consists of a large number at mutual distances from a few millimeters or possibly centimeters to one

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and fins attached to the same tube. The one shown in FIG Lamella 1 consists of a material with good thermal conductivity, such as sheet steel or aluminum, and is in shape an upper wing 2 and a lower wing 3 bent, which form an angle a with one another. The two Wings are rectangular in shape and have the same dimensions. the Lamella 1 also has a cylindrical section 4, whose axis is located at the intersection of the axes of symmetry of the lamella 1. The inside diameter of the cylindrical Section M- corresponds to the outside diameter of a pipe 5, on which the lamella 1 is attached in the Wexse that the tube is pushed through the cylindrical section M-. "Corresponding diameter" in this context means that the tube 5 is in a snug fit with frictional engagement with the cylindrical Section M- is related.

The lamella 1 is also provided with devices which this give an inherent elasticity, due to which the inner surface of the cylindrical portion U against the outer surface of the tube 5 is held pressed. These devices exist in the exemplary embodiment considered here from a, for example, rib-shaped fillet '5 in the upper wing 2, which is on the opposite side of the lamella protrudes as a projection from the lamella plane. The fillet 6 is produced, for example, by deep drawing and extends along the vertical axis of symmetry of the upper wing 2 from the upper edge of the lamella to the cylindrical Section M- (Fig. 1).

Said devices also comprise an incision 7 in the cylindrical section M on that of the groove 6 facing side and a slot 8 in the lower wing 3, that along the vertical axis of symmetry of the lower wing 3 runs from the lower edge of the lamella to the cylindrical section (Fig. 1).

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From Fig. 2 it can be seen that the air movement indicated by the arrows through the convector through the lamellar blades 2 and 3 is influenced in such a way that the air as it passes through the convector hits the louvre blades several times meets. For this reason, the lamella is more efficient than conventionally designed and lamellae aligned in a plane perpendicular to the tube 5. The one passing through the convector Air is therefore heated several times before it exits the convector due to multiple contact with the lamellas. .

According to a modified embodiment not shown here can the upper wing 2 and the lower wing 3 each one along the vertical axis of symmetry of Have lamella 1 extending fillet 6. In this case, the cylindrical section 4 is provided with two incisions 7, which are each located at the points facing the fillet 6. The two flutes 6 and the two incisions 7 give the lamella an inherent elasticity, due to which the cylindrical section 4 against the surface of the tube 5 is held down «

According to a further modified embodiment, not shown here, the devices imparting elasticity to the lamella can be made in the manner described above from an incision 7 in the cylindrical section U and a groove 6 in the upper wing 2 of the lamella, as well as a slot in the the lower wing 3 of the lamella, which extends along the vertical symmetry axis of the lower wing 3 from the cylindrical section k in the direction of the lower wing edge, but is only partially carried out.

In the second embodiment shown in Fig. 3, the lamella 9 lies in a single plane and is of square

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shear design. The lamella 9 has a cylindrical section 10, the axis of which is perpendicular to the plane of the lamella 9 and its inner diameter corresponds to the outer diameter of the tube 5 onto which the lamella is slipped is. The devices that give the lamella its own elasticity, by means of which the inner surface of the cylindrical section 10 is pressed against the outer surface of the tube 5 is held, consist of a to the cylindrical portion 10 concentric annular groove 11, which with the cylindrical Section 10 is connected by four radial ribs 12, which, for example, along the diagonals of the lamella 9 get lost. In addition, these devices comprise four cuts 13 in the cylindrical section 10 at the connection point each radial rib 12 with the cylindrical section 10.

The second embodiment can also be modified in this regard be that the number of radial ribs 12 differs from that shown here Embodiment differs and is, for example, two, three or more than four radial ribs. That of the lamella Devices imparting exgenelasticity can also consist only of the annular groove 11 and a certain number of incisions 13, consist of at least one incision.

In the third embodiment shown in FIG the lamella IH in a plane, is rectangular and has a perpendicular to the plane of the lamella 14 extending cylindrical section IU. The inside diameter of the cylindrical Section 15 corresponds to the outer diameter of the pipe 5, on which the lamella is attached.

The inner surface of the cylindrical section 15, which gives the lamella its own elasticity, against the outer surface of the tube 5 pressing devices here consist of four straight ribs 16, which each run along

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a diagonal of the lamella IM- extend and a corner of the Connect the lamella to the cylindrical section. 15. aside from that These devices comprise four incisions 17 made in the cylindrical portion 15 each at the junction between a rectilinear rib 16 and the cylindrical portion 15 are formed.

According to a modified embodiment not shown here A plurality of incisions 17 can also be formed around the circumference of the cylindrical portion 15 in this way be that several, adjacent cylindrical sections are formed. In this case there is a cylindrical one Section on one side from the lamellar plane in front, while the subsequent cylindrical sections "protrude to the other side of the lamellar plane. The adjacent cylindrical sections can also alternate protrude from the lamella plane on one side and the other.

According to a further embodiment, the devices which give the lamellae an inherent elasticity and good heat transfer between the lamella and the tube ₃ on which it is attached can also consist only of several cylindrical sections such as 15, which are separated from one another by incisions such as 17 . In this case, however, it may be necessary to form the cylindrical sections at a certain angle of inclination in the direction of the axis of the tube 5 during folding or deep drawing. When the lamellas are slipped onto the tube 5, the cylindrical sections are then elastically deformed against their inherent elasticity. The fins of the embodiments shown in Figures 3 and H can be correspondingly Of course, Fig. 1 ₉ form by enclosing planes are angled slats in the two form an angle with each other.

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In a corresponding manner, those shown in FIG According to a modified embodiment, lamellae can also be formed in a plane which is perpendicular to the pipe 5 or is oriented inclined at an angle to this.

By means of the different devices which give the lamellae their own elasticity, it is achieved in each case, that the cylindrical section of the lamella surrounding the tube is elastic against the tube due to the elasticity of the lamella is held down. In this way, the coefficient of thermal expansion becomes independent of the temperature or untex-different values Excellent heat transfer from the fins and tubes obtained from these parts, so that the highest possible efficiency of the convector achieved and also maintained during operation.

In the convector according to the invention can all, at conventional convectors required assembly, connection., and installation work in elimination. When the convectors For example, intended as a radiator for a building, the pipes can la the heating system during of the shell construction work (see exemplary embodiments in Fig. 5-7). It is particularly important to note that the Pipes do not need to be interrupted at the points where the convectors are to be attached. the The number of connections is therefore reduced to a minimum, so that installation can be carried out much more quickly and at the same time the number of possible leaks is significantly reduced,

Convector elements j which consist of a cover plate 2a and on this attached ^ :; laniCillen 3a exist, become industrial prefabricated. The lamellas are in any way such as e.g. by gluing, brazing or welding to the back the cover plate 2a at mutual distances of a few mm

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are poured. The slats run approximately parallel to each other and are held rigidly in this position by the side plates. As FIG. 11 shows, the leg of the lamellae 1b cast into the side plate 2b has anchoring profiles 3b which ensure good anchoring of the lamellae in the side plate 2b. _t . ·

Each lamella Ib is provided with a recess 4b "into which a pipe 5b, for example, a heating system can be used can. The recesses of all the lamellae are aligned with one another and towards the free leg 6b of the lamella 1b open minded. Thus, when the convector element is finished, the slats held together by the side panels can be removed Put on a heating pipe by simply inserting the convector element perpendicular to the heating pipe is plugged onto this so that the pipe in turn is in all the recesses of the Lamellae is introduced. This basically completes the convector radiator.

As can be seen from FIGS. 11 and 12, in this case the recess 4 b by deformation of the central portion of the Lamella made. During the deformation, a socket piece 7b is formed which delimits a part of the recess and is connected to the rest of the lamella by a fold 8b. The socket piece 7b is provided with slots 9b. These Training 'ensures good heat transfer from that Tube 5b on the lamellae Ib. The contact area between the fins and the pipe is significantly increased, with the socket piece is held firmly pressed against the pipe due to its inherent elasticity. For this purpose, the inside diameter of the socket piece 7b made slightly smaller than the outer diameter of the pipe 5b dimensioned during manufacture is on which the convector element is to be attached.

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To achieve the same spacing between the lamellae, each lamella has a leg 10b which is parallel to the longitudinal axis of the convector element is angled. This leg serves two purposes. First of all as a spacer by adding the front side of the leg of a lamella rests against the face of the adjacent lamella. In addition, the thigh meets an aerodynamic function during operation of the convector. The convector made from the tube 5b and the convector element described is generally on a vertical Wall attached so that the air passing through the convector only on one side of the same in the direction of arrow f is sucked in. In order to obtain an even distribution of the air flow inside the convector, a Part of the same can be deflected forwards, as this is otherwise mainly due to the rear part of the convector would pass through. This issue is fulfilled by the legs 10.

The embodiment of the convector shown in Fig. 9 consists of the pipe 5b of the heating system and two by fastening members such as screws 11b fastened to the pipe 5b on the convector elements. Each convector element has Lamellas 12b, which are cast on one leg by means of anchoring profiles in a side plate 13 made of plastic are. The recess in the lamella is on the opposite side of the leg cast into the side plate 13b Arranged legs and has an approximately semicircular shape. Just like the one described above In the exemplary embodiment, the recess can be formed by deforming the lamella 12b into a socket piece and a fold IM-b be trained. In this embodiment, each convector element forms one half of a convector. Every slat 12b can also be as described for that described in FIGS. 8 and 11-13 Embodiment be provided with a spacer leg.

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connected in parallel to each other. The slats are attached to the back of the cover plate 2a in the lower part. The cover plates 2a can optionally with (not shown) openings and / or in their upper half with an as Sound insulation serving insulation layer Ua be provided.

Each lamella 3a has a cutout 5a, which in the embodiment shown in FIG. 5 is in the lower Leg of the lamella is located. The dimensions of the cutout 5a are matched to the outer diameter of the tube la, that the lamellas 3a can be pressed onto the tube at their cutouts 5a with the exertion of a compressive force.

To manufacture the convector is then only necessary a convector of the type described above at the cutouts 5a located in the lamellas 3a onto an already installed heating pipe la. This The process opens up a wide range of possibilities, as any number of convector elements can be arranged next to one another or one behind the other in order to obtain any desired heating output within a room. The heating power can also be increased by adding further convector elements or the removal of some existing elements can be enlarged or reduced at any time.

In the embodiment shown in Figures 5-7, the upper end of the convector closes with a bracket attached to the wall, which consists of a window sill 6a and a cladding 7a with openings 8a for the passage of warm air. A connecting profile 9a connects the front edge of the cladding 7a with the upper edge of the cover plate 2a. The lateral ends of the convector can be closed by prefabricated end pieces ₅ whereby the efficiency of the convector is improved. For aesthetic reasons, cover plates ^ 2a can also be mounted on the wall that have no lamellas. At the console you can

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one or more cladding panels 10a are also provided be and close a closed space 11a, for example to accommodate electrical lines or the like. serves. The openings 8a in the upper cladding 7a can be displaced by means of a (not shown) Plate are more or less covered by the amount of hot air emerging from the convector into the room and thus the To be able to throttle the heating power at will.

To achieve a perfect engagement of the slats 3a against the tube la and a good heat transfer between these parts, a bracket 12a can be provided with their Ends at the slots between the slats is inserted, covers the cutout 5a and, if necessary, clamped on the tube la will. A bracket can be provided for each lamella, or bracket strips can be used for an entire convector getting produced. In the latter case, such a clip bar is provided with openings to allow air to circulate offers as little resistance as possible.

In the modified embodiment shown in FIG. 6, the cutout edge which is in engagement with the tube la of the lamellae 3a is drawn outwards in the axial direction out of the plane of the lamellae. The cutout edge 13a is therefore due to its inherent elasticity with firm engagement on the pipe la.

According to a modified embodiment not shown here An adjustable flap can be attached to the bracket 12a, which is used to regulate the amount of air circulated and thus is used to control the room temperature.

The convector element of the embodiment shown in Figures 8 and 11-13 consists of a plurality of slats Ib ,. on opposite legs in side plates 2b made of plastic, in particular made of a synthetic resin potting compound

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According to the embodiment shown in Fig. 10, the convector also consists of convector element halves, in which the lamellae 15b are approximately triangular. Each lamella 15b is fixed as described above connected to a side plate 16b and has a fold .17b on which a socket piece delimiting the recess connects. In this case, the recess is towards the lamella leg open, which forms an angle with the side plate 16b for fastening the two convector element halves on the tube 5b springs 18b are provided, which either as shown on the lamellae or on can be attached to the side plates 16b.

The cover plate for a convector can finally accordingly a modified embodiment not shown here also only from a side plate 2b, 13b or 16b exist.

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Claims (36)

Convector with a heating, ventilation, Cooling or air conditioning attachable slats, characterized in that at least some Slats (1, 9, 14, 3a, Ib, 12b, 15b) are provided with devices (6, 7, 8, 11, 12, 13, 16, 17, 13a) which give the lamella its own elasticity, due to which this at least partially against the surface of the tube (5, la, 5b) is held pressed. 2. Convector according to claim 1, characterized in that the slats have a cylindrical section (4, 10, 15) have, the inner surface of which is held against the pipe surface due to the inherent elasticity of the lamella. 3. Convector according to claim 2, characterized in that the slats each have two, an angle Ca) with each other forming enclosing wings (2, 3). 4. Convector according to claim 2, characterized in that the devices imparting elasticity to the lamellae in at least one of the cylindrical ones Section consisting of a radially outwardly extending groove (6). 5. Convector according to claim 2 or 4, characterized in that that each lamella has at least one slot (8) extending radially outward from the cylindrical section having. 6. Convector according to claim U, characterized in that the groove (6) carried out to the outer edge of the lamella is. ■. 7. Convector according to claim 5, characterized in that each slat is only one continuous to the outer edge of the slats Has slot (8). 309834/0879 8. Convector according to claim 2 ₅ 5 or 6, characterized in that the lamellae are divided into two or more parts at their cylindrical portion by incisions (7). 9. Convector according to claims H and 8, characterized in that that the fillets (6) are straight. 10. Convector according to claim 9, characterized in that '- the fillets (6) run along axes of symmetry of the slats. 11. Convector according to claim 2 or 8, characterized in that that the devices imparting elasticity to the lamellae consist of one to the cylindrical lamella section (4) consist of concentric annular groove (11). 12. Convector according to claim 11, characterized in that the devices also consist of each incision (13) exist in the cylindrical section (10) with the annular groove (11) connecting radial ribs (12). 13. Convector according to claim 10, characterized in that between each incision in the cylindrical portion and a groove is arranged on the outer edge of the lamp. 14. Convector according to claim 8, characterized in that the cylindrical portion of each lamella is divided into two opposing parts. 15. Convector according to claim 8, characterized in that the parts of the cylindrical section of the lamella acted against the tube due to their inherent elasticity are. 30983 ^ / 0079 16. Convector according to one of claims 2 -.IS, thereby ge. indicates that the cylindrical lamella portion is formed centrally in the lamella. 17. Convector according to one of claims 1-16, characterized in that a plurality of lamellae (3a) arranged parallel to one another are attached to a cover plate (2a) and each have a cutout (5a) in which one for circulating a heating or Cooling medium
certain pipe (la) is used. 18. Convector according to claim 17, characterized in that the upper end of the cover plate (2a) by means of a
Upper cladding having openings (8a)
(7a) is connected to a wall. 19. Convector according to claim 18, characterized in that the openings (8a) in the upper cladding (7a) by means of an adjusting device partially or completely
are lockable. 20. Convector according to claim 19, characterized in that the upper cladding (7a) in one piece with an as
Window sill (6a) formed and a space (lla) for receiving electrical lines or the like. Enclosing console is formed. 21. Convector according to claim 18, characterized in that the slats (3a) at their cutouts (5a) by means of at least one clamp (12a) against the heating pipe (la)
are pressed. 22. Convector according to claim 17, characterized in that the slats are corrugated. 309834/0879 23. Convector according to claim 17 _9, characterized in that the slats (3a) over the lower part of the cover plate (2a) extend 3 and the upper part of the cover plate rear side carries an insulating layer (4a). 24. Convector according to claim 23, characterized in that the cover plate (2a) over its entire surface in certain Has distribution arranged openings. 25. Convector according to claim 17, characterized in that the edges of the cutouts (5a) in the slats from the The lamellar level protrudes outwards. 26. Convector according to one of claims 1 - 25, characterized in that that the lamellae are at least partially cast in a plastic, in particular synthetic resin, compound and are held parallel to each other by this, all slats on their free legs each one up to Have edge carried out recess (4b) and the recesses all lamellas are aligned with one another and can be plugged onto a heating pipe (5). ' 27. Convector according to claim 26, characterized in that all the slats (Ib, 12b) on; one leg into one made of plastic side plate (2b, 13b, 16b) are used. 28. Convector according to claim 26, characterized in that all the slats on opposite legs each are cast in a side plate made of plastic. 29. Convector according to one of claims 2 6-28, characterized in that that the lamella legs cast in plastic are provided with anchoring profiles (3b). 309834/0879 30. Convector according to claims 2 6 and 28, characterized in that that the recesses (4b) bounded by a cylindrical sleeve piece (7b) and to the lower edge of the Lamella are open. 31. Convector according to claims 26 and 27, characterized in that that the recess (Ub) bounded by a semicircular cylindrical surface and that of the in the Plastic cast lamella edge opposite lamella edge is open. 32. Convector according to claim 26, characterized in that the slats are square. 33. Convector according to claim 26, characterized in that the slats are triangular. 34. Convector according to claim 30 or 31, characterized in that the cylindrical sleeve piece (7b) has a slot (9b) and is connected to the lamella via a fold (8b) which serves to give the socket piece a To give inherent elasticity. 35. Process for the manufacture of a convector according to one of the Claims 1 - 34, characterized in that first of all a pipe intended for circulating a heating or cooling medium (5, la, 5b) is laid, then slats (3a, Ib) provided with a cutout (5a) on a cover plate (2a) be and are attached to their cutouts on the tube and the cover plate at its upper end on a is firmly attached to a wall or the like. Connected cladding (7a). 36. The method according to claim 35, characterized in that the pipe, in particular heating pipe during the shell 309834/0879 work is relocated and the remaining part of the convector is installed during the final construction. 309834/0879 to Blank page