WO2012136229A2

WO2012136229A2 - Sectional radiator

Info

Publication number: WO2012136229A2
Application number: PCT/EP2011/001687
Authority: WO
Inventors: Harry König
Original assignee: König, Christel
Priority date: 2011-04-05
Filing date: 2011-04-05
Publication date: 2012-10-11
Also published as: WO2012136229A3; WO2012136229A4; EP2715239A2

Abstract

The invention relates to a sectional radiator which has at least two radiator sections each having a longitudinal portion with a longitudinal channel which, on one side, opens out into a first transverse channel of a first transverse portion and, on the other side, opens out into a second transverse channel of a second transverse portion. The radiator sections are arranged one beside the other and are connected to one another via their transverse portions. An opening connector is arranged on at least one transverse portion, on a side which is directed away from the longitudinal portion, and is designed to be directed in the same way as the longitudinal channel.

Description

Sectional radiators

The invention relates to a sectional heating element, which has at least two radiator members, each having a longitudinal section with a longitudinal channel which opens on one side into a first transverse channel of a first transverse section and on the other side into a second transverse channel of a second transverse section, wherein the radiator elements side by side arranged and connected to each other via their first transverse sections and their second transverse sections, according to the preamble of claim 1.

Such sectional heating elements are used primarily in electric radiators, which have an electrical heating element. Such radiators are composed of individual members, which are connected by special threaded connectors with seals. This connection is called nipples. Since there is a relatively high risk of leakage, all radiators must be extensively tested for leaks using compressed air or water.

In general, the radiators are then filled with a thermal oil or a mixture of water and glycol as carrier media.

Normally, an electrical heating element is screwed into the nippled radiator in the lower right corner and provided with an electronic control. In this area then usually a side panel is attached to which the controls, such as knobs, display, etc. are arranged.

Furthermore, it is known to heat such electric heaters without filling with a liquid "dry".

Here, the problem of tightness and the risk of leakage is avoided. However, in these dry electric heaters, the heat distribution from the electric heater into the metallic heater is a problem To improve the heat transfer to the metallic heater, it is known to arrange firebricks within the fins of the metal heater, through which via contact line and convection, the heat is transferred from the electric heater to the metallic body. However, the insertion and placement of fireclay bricks brings considerable limitations in the appearance and a considerable difficulty of assembly with it.

The invention is based on the invention to provide a sectional heating element, which allows a simple and reliable design as an electric heater and still allows a good radiation of heat.

The object is achieved according to the invention by a sectional heating element with the features of claim 1. Preferred embodiments of the sectional heating element are specified in the dependent claims.

The sectional heating element according to the invention is characterized in that an opening stub is arranged on at least one transverse section on a side facing away from the longitudinal section, which opening is designed to be directed in the same direction to the longitudinal channel.

A first aspect of the invention is to form the individual radiator members, which are basically the same, in an open design. In this case, an opening is provided on a transverse section, which is usually directed down to the ground. Through this opening, which is the same direction or coaxially formed to the longitudinal channel, a heating element can be used subsequently to the assembly of the radiator from the individual members. Furthermore, this opening also allows replacement of any defective electrical heating elements. Thus, the sectional heating element can be configured in a simple manner to an electric heater.

Furthermore, it is preferred according to the invention that the radiator elements are the same design and cast or formed from an extruded profile. In this way, the radiator members can be manufactured in large numbers and thus cost. The radiator members are made of a metal, preferably aluminum. They basically have an elongated shape with the longitudinal section and the two shorter transverse sections. To improve the Heat radiation and optical reasons can be arranged with great variety of shapes ribs and cover plates. In cast radiator members, these are preferably formed in one piece. Alternatively, these can also be manufactured as a particularly favorable extruded profile. The extruded profile basically represents the longitudinal section, wherein the transverse sections may possibly be laterally attached as further extruded profiles.

Furthermore, it is advantageous according to the invention that, in order to form an electroheating element, an electrical heating element is arranged in the radiator element, which is introduced into the longitudinal channel via the opening stub. In principle, heating elements can be used in the modular constructed sectional heating element from the individual radiator elements only in one or in individual radiator elements. Preferably, however, electrical heating elements are used in all radiator elements, which preferably extend over the entire length of the longitudinal channel. The heating elements can be mounted before or after the installation of the radiator elements to the sectional radiator.

A further embodiment according to the invention consists in that the electrical heating element has a heating wire device, which is surrounded by a storage body for storing heat. The storage body has an outer contour, which is suitable for use in the longitudinal channel. The disposing can be done by a press fit, by gluing or a mechanical attachment, so that there is a large area contact with the metallic radiator member. This ensures good heat transfer. The storage body may be formed of a suitable material such as fireclay, ceramic, refractory concrete, sour iron, etc., which on the one hand provide good heat conduction and on the other hand also a sufficient heat storage capacity.

A particularly preferred development according to the invention consists in that the heating wire device is inserted into the longitudinal channel for forming the electrical heating element in the heating element, wherein the storage body is formed by molding the heating wire in the longitudinal channel. After inserting the heating wire device, which is in particular a helix with a corresponding heating resistor, a liquid or swellable mass is introduced, which then hardens in the longitudinal channel to the storage body or swells for this purpose. As a result, the heating element is simultaneously adapted to the longitudinal channel in a form-fitting manner and fastened therein. It is thus achieved an intimate material connection between the metallic outer side of the radiator member and in the filled and cured storage body, so that a very good heat transfer between the two bodies is possible.

Another inventive aspect and a preferred embodiment are that the adjacent transverse channels are connected by connecting pipes, which are glued into receiving holes in transverse sections. According to the invention is thus departed from the usual connection type of the nipple with threaded connection elements. Rather, a simple connection via preferably cylindrical connecting tubes, which are inserted into corresponding receiving bores in the transverse sections fitting and glued therein. In such a bonding an additional mechanical securing of the joints is no longer necessary. In addition, with a bonding and a sufficient tightness is achieved.

Another advantage of one embodiment of the invention is that the opening stubs are closed in a fluid-tight manner to form a filled electric heater. The closing of the opening stub can be done after the final assembly by welding or preferably by inserting blind plugs, which are preferably also glued into the opening stub. The blind plugs can be made of metal or preferably of plastic. In a corresponding manner, the lateral openings of the transverse channels of the two lateral radiator members can be closed. Thus, the radiator links can be installed without much effort in addition to the formation of a dry electric radiator and a liquid-filled electric radiator.

Here, a preferred embodiment of the invention is that a plurality of interconnected transverse channels form a receiving channel in which an electrical heating element is inserted. For a fluid-filled electric radiator can thus be dispensed with individual heating elements in the longitudinal channels of the radiator elements, wherein a then differently designed electrical heating element is inserted into the receiving channel formed by the transverse channels. Preferably, this transversely mounted electrical heating element is located in the - - Bottom horizontal channel. The electric heating element does not have to completely fill the transverse channel, so that it can be flowed around by the then filled liquid. The liquid in the radiator then allows by convection a good heat distribution within the radiator and thus ensures good heat radiation over the entire surface of the radiator.

Another possibility of the design of the element heating element according to the invention is that a flow connection and a return connection for connection to a hot water heating system are arranged. The corresponding connections can be arranged laterally in the openings of the transverse channels or preferably on the opening stubs. In this way, the sectional heating element can be connected in a variety of ways in a variety of connection options, including a central connection to an existing hot water heating system with flow and return. Also in this embodiment, at least one electric heating element can additionally be arranged in the sectional heating element. In this way, the radiator can be operated approximately in winter without electrical heating support with a normal hot water connection. However, if the normal hot water heating system is switched off, as is often the case in the summer months, the radiator can then be operated with the electric heating element at the heating demand that is then necessary during this time. In such a liquid-filled embodiment, the heating element is formed with a liquid-tight envelope as a so-called heating cartridge.

In principle, the opening stubs can be cylindrical or with any other desired cross section. To achieve a particularly compact radiator, it is provided according to the invention that the opening stubs are formed oval. Such a shape is also particularly well suited for the insertion of heating elements with a corresponding cross-section. Heating elements with an oval cross-section, according to a finding of the invention, provide for a particularly expedient relationship between the volume of the storage body and the outside relevant for the heat release.

The invention will be further elucidated on the basis of preferred exemplary embodiments, which are illustrated schematically in the attached drawings. In the drawings show: Fig. 1 is a side view of a link radiator according to the invention;

FIG. 2 shows a first cross-sectional view of a radiator element according to the invention; FIG.

Fig. 3 is a further cross-sectional view of Figure 2 folded by 90 °.

Fig. 4 is a cross-sectional view of Figure 2 of another embodiment of a radiator member.

Fig. 5 is a further cross-sectional view of the radiator member of Figure 4 folded by 90 °.

6 shows a partial cross-sectional view through a lateral lower region of a sectional heating element according to the invention;

7 is a partial cross-sectional view of a dummy plug;

Fig. 8 is a plan view of the blind plug of Fig. 7;

9 is a side view of a further element heating element according to the invention;

FIG. 10 is a side view of the link radiator of FIG. 9 from the narrow side; FIG.

11 is an enlarged and partially sectioned detail view B of the link heating element of FIG. 9;

FIG. 12 shows a further enlarged detail view A of the sectional heating element of FIG. 9; FIG.

13 shows an enlarged detail view of a hot water connection device of a sectional heating element according to the invention;

14 shows a partial cross-sectional view through an upper region of a sectional heating element according to the invention;

FIG. 15 shows a partial cross-sectional view corresponding to FIG. 14 through a further embodiment of a sectional heating element according to the invention; FIG. and

16 is a partially sectioned side view of a further element heating element according to the invention. According to Fig. 1, the basic of a sectional radiator 10 according to the invention is shown. In the embodiment shown, a total of five radiator members 20 are arranged in series next to each other and connected to each other. On both sides in each case a side panel 14a, 14b made of plastic or sheet metal is attached. Furthermore, a cover 16 made of sheet metal or plastic is arranged on the top.

The structure of a single radiator member 20 will be explained in connection with FIGS. 2 and 3. A radiator member 20 has a longitudinal tubular portion 22 in which a longitudinal channel 24 is formed. In the present embodiment, the longitudinal channel 24 is arranged vertically. At its upper end, the longitudinal channel 24 opens into a horizontal first transverse channel 28 of a first transverse section 26. In a corresponding manner, the longitudinal channel 24 opens at its lower end into a horizontal second transverse channel 32 of a second transverse section 30. The transverse sections 26, 30 each have their lateral openings inner receiving holes 42, which each have an inwardly projecting shoulder 44 at their inner end surfaces.

At the lower second transverse section 30, an opening stub 34 with an opening 36 is formed on its lower side, which faces away from the longitudinal section 22. The opening 36 of the opening nozzle 34 corresponds in its cross section to the cross section of the longitudinal channel 24, which is oval in the present embodiment. The opening nozzle 34 extends like the longitudinal channel 24 along its longitudinal axis 38.

To form an electric heating element, which is operated dry, ie without liquid filling, a heating element 50 is inserted into each heating element member 20. The heating element 50 extends over the entire length of the longitudinal channel 24 between the two transverse channels 28, 32nd

The heating element 50 has a storage body 56, for example of a fireclay material, whose outside is shaped to match the longitudinal channel 24, so that a planar contact between the storage body 56 and the inside of the longitudinal channel 24 is achieved. Within the storage body 56 extends a heating wire 52 formed as a heating wire. At the two ends of the heating wire, respective electrical connections 54a, 54b are provided, which extend into the region of the first th transverse channel 28 and the second transverse channel 32 protrude. The power connections 54a, 54b serve for connection to a power supply, which is arranged along the two transverse channels 28, 32.

While the electrical heating element 50 according to FIGS. 2 and 3 can be inserted individually in the individual heating element members 20 and mounted prior to assembly of the heating element elements 20 to the sectional heating element 10, an embodiment with another electric heating element 50 is shown in FIGS. 4 and 5. This electrical heating element 50 is introduced only after the installation of the individual radiator members 20 via a connecting tube 40. In this case, a heating wire device 52 is first introduced through the opening 36 of the opening nozzle 34 into the longitudinal channel 24 of the longitudinal section 22. In this case, this heating-wire device 52 has a feed line 58 and a discharge line 60, which are connected to one another via an upper connection 62. An improved power line between the supply line and the discharge line 60 can take place via a channel 64, in which approximately mica is introduced as an electrical conductor. A terminal 54a for supplying power and a terminal 54b for discharging the current at the drain 60 both project into the lower second transverse channel 32. In this way, the power supply is possible only through the lower second transverse channels 32.

After insertion of the heating wire 52, a flowable mass is filled through the opening 36 of the opening stub 34, which then hardens in the longitudinal channel and the upper first transverse channel 28 to the storage body 56. For this purpose, the radiator is placed upside down during filling and curing, with the openings 36 projecting upwards. The heating energy of the heating wire device 52 is forwarded via the storage body 56 in the longitudinal channel 24 and the upper first transverse channel 28 to the metallic outer housing. This preferably made of aluminum outer housing has heating ribs 18, through which the heat can then be released over a large area to the surrounding air.

Another designed as a dry electric heater limb heater 10 is shown in Fig. 6. In this case, a total of three radiator members 20 are arranged side by side and connected to each other. In this case, in the lower second transverse channel 32 into the respective receiving bore 42, a matching connecting tube 40 is used up to the axial shoulder 44 and glued therein fluid-tight. The same takes place on the opposite side, wherein the length of the connecting tube 40 corresponds to exactly twice the length of the receiving bores 42. In this way, a receiving channel 12 is formed by the lower second transverse channels 32, in which the power lines 13 extend to the power supply of the individual heating elements 50. In the present embodiment, the solid storage body 56 of the electric heating element 50, an adhesive bond 57 in the longitudinal channels 24 are glued surface.

Even if it is not absolutely necessary in a design as a dry radiator, so in the embodiment of FIG. 6, the openings 36 of the lower opening nozzle 34 are closed by a blind plug 38 with sealing ring 39. In a corresponding manner may be provided with a side plug 46 on the side radiator members 20, the respective lateral opening.

In the figures 7 and 8, an embodiment of a dummy plug 38 for the opening 36 of the opening piece 34 is shown schematically greatly enlarged. The outside of a projecting wall 37 corresponds to the inner contour of the opening stub 34 or of the longitudinal channel 24 with the side diameter D. It can be seen in particular the oval shape, which corresponds to the oval cross-sectional shape of the longitudinal channel 24.

FIGS. 9 to 14 show a further embodiment of a sectional heating element 10 according to the invention, which can be operated filled with liquid. The sectional heating element 10 is composed of a multiplicity of radiator elements 20 of the same design. In contrast to the embodiments described above, only a single heating element 50 is inserted into the lower receiving channel 12. The longitudinal channels 24 of the individual radiator members 20 thus remain free and can be filled with liquid. The electrical heating element 50 designed as a so-called heating cartridge has on its outwardly projecting side a mains connection 82, which is arranged in a box-shaped control element 80 with the operating elements. In this arrangement, the opening nozzles are sealed fluid-tight. The remaining three lateral openings on the transverse channels are closed fluid-tight by side plugs 46. If the sectional radiator 10 is completed, this can be operated as a liquid-filled electric radiator. As indicated in FIG. 9, the radiator may additionally be formed with a flow connection 70 and a return connection 72 in a side connection arrangement shown. This connection arrangement is shown in more detail in FIGS. 12 and 13. Warm heating water of a central hot water system flows into the longitudinal channel 24 of the radiator element 20 via the feed connection 70 with an inflow pipe 71, which is fastened in a fluid-tight manner to the opening stub 34 of a radiator element 20 via a connection 73 and a seal 74. According to the flow direction marked by arrows the warm heating water upwards. At the upper end of this second or penultimate radiator member 20 in the arrangement of the sectional heating element 10 then flows the hot water to the left and right in the upper receiving channel 12, as shown in Figures 11 and 14. The hot water flowing to the left is then distributed via the left-hand upper receiving channel 12 via the left-side radiator elements 20 and flows downwardly into the lower receiving channel 12 and back to the return connection 72. The returning heating water can flow around the inflow pipe 71, which has a smaller diameter than the inner diameter of the lower second transverse channel 32 is formed.

The heating water flowing to the right according to FIGS. 11 and 14 is conducted downwards via the right individual heating element member 20 to the return connection 72. In order to avoid a short-circuit flow through this single radiator member 20, a throttle tube 76 is arranged with radial throttle bores 78 in the upper first transverse channel 28. The throttle tube 76 has an extended left side portion that includes the function of the connecting tube for connecting the two adjacent radiator members 20 with.

According to FIG. 15, a modified variant for a so-called center connection is shown. In this case, the heating water flows from the flow connection according to the direction of the arrow upwards and is distributed in the upper transverse channel to the left and right. In the case of a central connection, a plurality of radiator elements 20 are arranged on both sides in relation to this flow. The return port is located below the right side radiator member 20. In order to prevent excessive short-flow flow through its longitudinal channel 24, a throttle tube 76 is arranged with radial throttle bores 78 in the upper first transverse channel 28. The throttle tube 76 assumes on both sides the function of the connecting tube 40 for attaching and sealing the side radiator links 20.

Referring to FIG. 16, the attachment of a side trim 14 is shown via plugs 67 which are fluid tightly secured in the transverse channels 26, 30 of the outer radiator member 20. The connection plugs 67 have a holder 68 to which the side cover 14 can be made of sheet metal. At the same time, a power line can be guided through the connecting plug 67 through a corresponding passage opening to the control element 80, which is arranged in the side panel 14.

Claims

claims

1. limb radiator, which has at least two radiator members (20), each having a longitudinal portion (22) with a longitudinal channel (24), which on one side in a first transverse channel (28) of a first transverse portion (26) and on the other side into a second transverse channel (32) of a second transverse section (30), the radiator links (20) being arranged next to one another and being connected to one another via their first transverse sections (26) and their second transverse sections (30),

characterized,

in that on at least one transverse section (30) on an end remote from the longitudinal section (22) an opening stub (34) is arranged which is rectilinear to the longitudinal channel (24).

2. limb radiator according to claim 1,

characterized,

the heating element members (20) are of the same design and cast or formed from an extruded profile.

3. limb radiator according to claim 1 or 2,

characterized,

in that an electric heating element (50), which is introduced into the longitudinal channel (24) via the opening stub (34), is arranged in the radiator element (20) to form an electric radiator.

4. limb radiator according to claim 3,

characterized, in that the electrical heating element (50) has a heating wire device (52) which is surrounded by a storage body (56) for storing heat.

5. panel radiator according to claim 4,

characterized,

in that the heating wire device (52) is inserted into the longitudinal channel (24) for forming the electrical heating element (50) in the heating element member (20), wherein the storage body (56) is formed by molding the heating wire device (52) in the longitudinal channel (24) ,

6. panel radiator according to one of claims 1 to 5,

characterized,

in that the adjacent transverse channels (28, 32) are connected to one another via connecting tubes (40) which are glued into receiving bores (42) in the transverse sections (26, 30).

7. panel radiator according to one of claims 1 to 6,

characterized,

in that the opening stubs (34) are closed in a fluid-tight manner in order to form a fluid-filled electric heating element.

8. limb radiator according to one of claims 1 to 7,

characterized,

in that a plurality of interconnected transverse channels (28) form a receiving channel (12) in which an electrical heating element (50) is inserted.

9. panel radiator according to one of claims 1 to 8,

characterized,

in that a flow connection (70) and a return connection (72) are arranged for connection to a hot water heating system.

10. panel radiator according to one of claims 1 to 9,

characterized,

that the opening stubs (34) are oval.