EP3230670B1 - Heat radiator - Google Patents

Description

The present invention relates to a heat radiator with a housing, on the outer edges of a sealing element for sealing a gap between the housing and a body to be dried, or a receptacle for such a sealing element is arranged. Such a heat radiator is from the DE102014102833 B3 known. Such radiant heaters are often used for drying of bodies in general and in the context of building drying to repair water damage. Known methods provide for this purpose to hang a heat radiator, for example in the form of an infrared radiator directly in front of a wall to be dried so as to bring in the heat emitted by the heat radiator in the wall. In the course of heating, the moisture stored in the wall exits via the wall surface.

Between the heat radiator and the body to be irradiated a convective zone is created, which is caused by the warm surface of the radiant warmer and by the heated body.

In particular, in a vertical arrangement, for example in the course of a wall drying, this creates the problem that very quickly a strong, chimney-like flow occurs, which cools both the infrared radiator and the surface to be heated. This is an undesirable effect, as this releases a large part of the heat energy and heats the room air instead of the body to be dried.

However, to a limited extent, convection is quite desirable, as it is helpful for the removal of moisture, which was discharged due to the heat radiation from the body to be dried.

This results in the demand for a maximum energy input in the body to be dried and a simultaneous limited flow to remove the moisture.

The present invention is therefore based on the object to provide a heat radiator with a housing that allows the setting of a convection flow and preferably at the same time ensures that the generated convection flow is equally kept away from the body to be dried and the heat radiator.

This is achieved by a heat radiator according to the features of claim 1. Further useful embodiments of such a heat radiator can be found in the respective subclaims.

According to the invention, it is therefore provided to provide a heat radiator with a housing, which is placed in front of a body to be dried, with a sealing element which seals the gap between the heat radiator and the body to be dried at the edge, preferably circumferentially. Due to such a seal initially a free flow of air through the gap is already prevented. However, the adjustment of a convection flow to remove the moisture is prevented by a complete seal at the same time, so that the sealing element is formed strip-shaped and has openings in a center zone enclosed between two air-impermeable edge zones, through which the desired convection flow can be adjusted. These openings are arranged so that they maintain a sufficient distance both to the body to be dried and to the heat radiator.

The two air-impermeable edge zones thus keep the convection flow far away from the body to be dried and the heat radiator, while the desired convection flow can be established in the central zone due to the openings arranged there. A sweeping of the body to be dried or the heat radiator by the convection flow is thus prevented.

In a concrete embodiment, the strip-shaped sealing element may be a brush element whose brushes are held in bundles in a brush casing. In this construction, the brush border constitutes an air-impermeable inner edge zone, which is preferably connected directly to the housing of the heat radiator. As such, the brush enclosure retains the convective flow away from the radiant heater.

At the same time, the brushes are bundled single bristles, which are combined in the region of the transition to the brush border. Between each two individual brushes hereby creates a distance which allows air flow. Towards the free ends of the brushes, the individual brushes arranged adjacent to one another interlace such that the free ends of the brushes form a second, largely air-impermeable edge zone.

Furthermore, the brush enclosure may be a strip of material enclosing the fixed ends of the brushes, so that the sealing element as a whole can be connected to and detached from the housing of the heat radiator.

To realize a suitable connection between the brush casing and the housing, the latter can be assigned a peripheral plug-in channel, into which the brush casing is at least partially inserted. In this case, the width of the inner edge zone, which serves for the spacing of the convection flow from the heat radiator, can also be influenced via the insertion depth of the channel.

In the plug-in channel, the brush border can be held in various ways, in particular by clamping, by a magnetic holder or by means of mechanical holding means such as screws and the like more.

As an alternative to a brush enclosure with brushes arranged thereon, a suitable configuration of a sealing element can also provide a hose arrangement or a rubber lip, which is perforated in the central zone of openings which also exists here.

In a further development of such a hose arrangement or rubber lip, the openings can be closed mechanically by means of incorporated metal strips, pneumatically, magnetically or hydraulically. For example, when metal strips are used, the metal strip may be moved by applying a magnetic field to pull the tube over the opening or to expand it into the opening to make the opening smaller or completely closed.

Moreover, the occurrence of a chimney effect can be influenced by selecting an angle between the heat radiator and the body to be dried, as a result of which the said chimney effect sets in. This is of particular interest in the case of drying or heating of a horizontally arranged object, for example in the case of a floor drying. In this case, the sealing element may have different widths at different edges of the housing, so that the sealing element sealingly closes even at an angle set between the heat radiator and the body to be dried.

In order to avoid that the heat radiator is arranged at an incorrect distance from the body to be dried and possibly when installing the sealing element could be compressed, the housing may have on its side facing in the radiation direction supports that in the length of the supernatant of the sealing element over the edge of the housing are formed. These supports can either be distributed over the circumference of the housing edge or arranged in the corners of the housing. With some advantage, the supports are separable and interchangeable to connect different width sealing elements with the heat radiator and also to allow an oblique employment of the heat radiator relative to the body to be dried.

Insofar as it is intended to simplify the removal of the convection flow from the wall in a simplified manner, it is provided to provide a heat radiator with a housing, which is placed in front of a body to be dried, with a sealing element, which adjoins the space created between the heat radiator and the body to be dried the vertical edges against the surrounding space seals. Due to such a seal is an influx of air prevented from the side areas, which could cool the radiator and the wall.

It is also envisaged to provide only one receptacle for such a sealing element in order, if appropriate, to join together a plurality of heat radiators to form a common space and in order to be able to use sealing elements of various lengths and variously formed.

Between the lateral sealing elements can be adjusted in this way a convection flow, which can remove the heated and laden with moisture up air.

In a concrete embodiment, the strip-shaped sealing element may be a brush element whose brushes are held in bundles in a brush casing.

In order to realize a suitable connection between the brush mount or another sealing element and the housing, the latter can be assigned a peripheral receptacle into which the sealing element is at least partially inserted.

In the receptacle, which may for example be designed as a Einsteckrinne, the sealing element can be maintained in various ways, in particular by clamping, by a magnetic holder or by means of mechanical holding means such as screws and the like.

As an alternative to a brush enclosure with brushes disposed thereon, a suitable configuration of a sealing member may also provide a hose assembly or a rubber lip which seals the space between the side edges of the housing and the body to be dried from the surrounding space.

Moreover, the occurrence of a chimney effect can be influenced by selecting an angle between the heat radiator and the body to be dried, as a result of which the said chimney effect sets in. This is special also in a drying or heating of a horizontally disposed article of interest, such as in a soil drying. In this case, the sealing element at different positions at the edges of the housing may have different widths, thus be formed tapering, so that the sealing element sealingly closes even at an angle set between the heat radiator and the body to be dried.

In order to avoid that the heat radiator is arranged at an incorrect distance from the body to be dried and optionally when installing the sealing element could be upset, the housing may have on its pointing in the direction of radiation side supports that in the length of the projection of the sealing element on the edge of the housing are formed. These supports can either be distributed over the circumference of the housing edge or arranged in the corners of the housing. With some advantage, the supports are separable and interchangeable to connect different width sealing elements with the heat radiator and also to allow an oblique employment of the heat radiator relative to the body to be dried.

The invention described above will be explained in more detail below with reference to an embodiment.

Figur 1

einen Wärmestrahler mit einem umlaufenden Dichtelement in einer perspektivischen Darstellung von schräg oben,

Figur 2

eine Anordnung aus zwei Wärmestrahlern gemäß Figur 1, ebenfalls in einer perspektivischen Darstellung von schräg oben,

Figur 3

einen Wärmestrahler mit einem Dichtelement in Form einer Gummilippe in einer Trocknungsposition bezüglich einer zu trocknenden Wand in einer seitlichen Darstellung, sowie

Figur 4

einen Wärmestrahler mit einem Dichtelement in Form einer Bürstenanordnung in einer Trocknungsposition bezüglich einer zu trocknenden Wand in einer seitlichen Darstellung.

Show it:

FIG. 1

a heat radiator with a peripheral sealing element in a perspective view obliquely from above,

FIG. 2

an arrangement of two heat radiators according to FIG. 1 , also in a perspective view obliquely from above,

FIG. 3

a heat radiator having a sealing member in the form of a rubber lip in a drying position with respect to a wall to be dried in a side view, as well

FIG. 4

a heat radiator with a sealing element in the form of a brush assembly in a drying position with respect to a wall to be dried in a side view.

FIG. 1 shows a heat radiator 1, which is installed in a housing 2. In the direction of the heat radiation of the heat radiator 1 protrudes from the housing 2, a circumferential sealing element 4 perpendicular, which is interrupted at the corners of the housing 2 of supports 10. Due to such a seal at the edge of the housing 2, this can occupy a defined distance in a curtain before a wall to be dried 3, so that an efficient drying can be done. This shows the FIG. 1 the sealing element 4 not in its details but only schematically. The individual parts of the sealing element 4 can be removed separately from the housing 2 in order to make the sealing of the housing adaptable.

FIG. 2 shows an arrangement of two heat radiators 1, which are interconnected along a longitudinal edge. In this configuration, the side-by-side sealing elements 4 have been removed to create a continuous convection flow. The sealing elements 4 are for this purpose easily removable from the housing 2, since the sealing elements 4 are inserted and clamped in a specially designated groove on the edge of the housing 2. As a result, the sealing elements 4 can be easily removed or added if necessary, depending on which configuration of sealing elements 4 is required to form different patterns of heat radiators 1.

FIG. 3 shows a heat radiator 1, which is suspended in front of a wall 3. On the housing 2 of the heat radiator 1 in this case also a set of supports 10 is arranged, which define a suitable distance between the housing 2 with the heat radiator 1 on the one hand and the wall 3 on the other. Between the supports 10, a rubber seal is provided, which has an inner, the heat radiator 1 immigrated edge zone 5, an outer edge zone 6, which is the wall so inclined and a central zone, which openings for the passage of the convection having. The middle zone 7 is in this case bounded by the inner edge zone 5 and the outer edge zone 6, which creates the air flow, which is within the gap which is enclosed between wall 3 and housing 2 by the sealing element 4, due to the heating of the air in this area, obstruct and allow flow only in the area bounded by the openings 11 in the middle between the heat radiator 1 and the wall 3.

Due to this construction, the heat radiator 1 will now radiate the heat in the direction of the wall 3 and thereby both heat itself and bring about a heating of the wall 3 in the irradiated area. Due to the above measures, it does not come to a directly on the heat radiator 1 or the wall 3 stroking passing convection air flow, but a stemming from the wall 3 air flow can only initially move away from the wall and then in the middle of the gap between heat radiator 1 and wall 3 rise to the openings 11 and exit through this out of the considered area. A cooling of both the wall 3 and the heat radiator 1 is thus effectively prevented.

FIG. 4 finally shows a useful alternative to the solution in FIG. 3 in which a brush arrangement is used as sealing element 4. This consists of a plurality of brushes 8, which are combined at a fixed end in a brush enclosure 9. The brush enclosure 9 in this case initially forms an inner edge zone 5, which is impermeable to air due to the nature of the brush enclosure. Between the combined, fixed ends of the individual brushes 8 there are gaps through which ascending air streams can leave the gap between the heat radiator 1 and the wall 3. The free ends of the brushes 8, however, entangle to an outer edge zone 6, which is also largely impermeable to air and represents a barrier to the rising air currents.

FIG. 5 shows a heat radiator 1, which is installed in a housing 2. In the direction of the heat radiation of the heat radiator 1 protrude from the housing 2, two lateral sealing elements 4 perpendicular, which are bounded at the corners of the housing 2 of supports 10. Due to such a seal at the edge of the housing 2, this can in a curtain in front of a wall to be dried occupy a defined distance, so that an efficient drying can take place. This shows the FIG. 5 the lateral sealing elements 4 not in all details but only schematically. The individual sealing elements 4 can be removed separately from the housing 2 in order to make the sealing of the housing 2 adaptable.

FIG. 6 shows an arrangement of two heat radiators 1, which are interconnected along a longitudinal edge. In this configuration, a continuous convection flow is generated across several radiant heaters. The sealing elements 4 are removable from the housing 2, since the sealing elements 3 are inserted and clamped in a specially provided insertion channel at the edge of the housing 2. As a result, the sealing elements 4 can be easily removed or added if necessary, depending on which configuration of sealing elements 4 is required to form different patterns of heat radiators 1.

Thus, described above is a heat radiator with a housing, which has a sealing element for sealing a gap between the housing and a body to be dried, wherein the sealing element is formed strip-shaped and, if necessary, can form an air-impermeable center zone between two air-impermeable edge zones.

LIST OF REFERENCE NUMBERS

1.

Radiant heaters

Second

casing

Third

wall

4th

sealing element

5th

inner border zone

6th

outer edge zone

7th

Central zone

8th.

brush

9th

brush border

10th

support

11th

opening

Claims (10)

1. Heat radiator comprising a housing (2), characterised in that it has, along at least one of the outer edges of the housing, at least one strip-shaped sealing element (4) for sealing a gap between the housing (2) and a body to be dried, the sealing element (4) forming at least approximately airtight peripheral zones (5, 6) in the longitudinal direction on both sides, which peripheral zones define an intermediate air-permeable middle zone (7).
2. Heat radiator according to claim 1, characterised in that the sealing element (4) is a brush element, the brushes (8) of which are held in bundles in a brush surround (9) that forms an inner peripheral zone (5) on the housing side and interleave in the direction of the free ends thereof to form a free outer peripheral zone (6).
3. Heat radiator according to claim 2, characterised in that the brush surround (9) is a material strip which encloses the fixed ends of the brushes (8).
4. Heat radiator according to either claim 2 or claim 3, characterised in that the brush surround (9) is at least partially inserted in a peripheral insertion groove in the housing (2).
5. Heat radiator according to claim 4, characterised in that the brush surround (9) is held in the insertion groove by clamps, magnetism or mechanical holding means.
6. Heat radiator according to claim 1, characterised in that the sealing element (4) is a tube assembly or rubber lip, which is perforated by openings (11) in the middle zone (7).
7. Heat radiator according to claim 6, characterised in that the openings (11) can be closed mechanically, pneumatically, magnetically or hydraulically.
8. Heat radiator according to any of the preceding claims, characterised in that the sealing element (4) has a different width on different edges of the housing (2) or widens or tapers in the longitudinal extension.
9. Heat radiator according to any of the preceding claims, characterised in that the housing (2) has supports (10) in the length of the projecting end of the sealing element (4) across the housing periphery, which supports are distributed over the edges of the housing (2).
10. Heat radiator according to claim 9, characterised in that the supports (10) are arranged in the corners of the housing (2).

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