HRP990371A2 - Instalation for heating and7or cooling of spaces - Google Patents

Description

The invention relates to a device according to the main term of claim 1.

Such devices are known per se. They are described, for example, in GB 2 035 435 A, or in AT 381 160 B, where knots are applied to a mostly flat bearing plate, the sheaths of which are made of a passing beam perpendicular to the upper side of the bearing plate. The heating or cooling medium current lines are laid between the nodes.

DE 33 00 607 C2 refers to a liquid heating surface for the floor, which can be walked on during laying, where the heating pipes are embedded in the screed, which is why recessed channels are provided in which the pipes are laid with protection against damage and change of position.

In the GB 2 035 435 A known solution, lines relatively thickly coated with glue are laid between the nodes, and then glued to the cover plate. In doing so, the space between the lines and the cover plate is partially filled.

With the device according to AT 381 160 B, the nodes are only covered, leaving hollow spaces through which air can flow.

Via AT 403 396 B, a device of the type mentioned in the introduction is known, in which the supporting plate is provided with ribs, between which the lines are inserted. In doing so, the spaces between the ribs are filled with a hardening hydraulic binder. The ribs of the bearing plate and the laying of the lines are covered with a well thermally conductive layer of plaster, where the side walls of the ribs of the bearing plate pass, regardless of the rounding at the base and in the head, mostly vertically against the upper side of the bearing plate. Since the width of the ribs determines the distance of the lines from each other, as a rule, relatively wide areas result where mostly only a thin, well-conductive layer of plaster rests on the ribs of the heat-insulating supporting plate. This leads to zones of different temperatures appearing on the walls and ceiling surface towards the side of the device facing the air-conditioning space. These temperature differences amount to several degrees Celsius according to local conditions, which leads to uneven heat radiation and accumulation of dirt on wall or ceiling surfaces in the "heating" operating mode, and additionally condensed water appears on the wall surfaces in the cooling operating mode.

The invention, as described in the claims, has the task of avoiding the shortcomings of the state of the art in devices of the type described in the introduction, and in particular of being able to achieve fast regulation capabilities of the system with the least possible consumption of tank mass and good thermal conductivity, as well as to achieve a uniform surface temperature on the side facing the air conditioning area.

Through the proposed features, the advantage is obtained that the hollows of the bearing plate filled with the hardening hydraulic binder, fill a very large surface area with this binder. This results in a very uniform heat distribution and surface temperature of the device on the sides facing the air conditioning system, by only 0.2 to 0.3°C, which means a value that is approximately a factor of 10 lower than the state of the art. In addition, the device according to the invention is characterized by a small amount of heat accumulation, which enables quick regulation and the formation of condensed water on the surface is avoided. A further advantage lies in simple assembly in front of the destination, especially in attaching the device to the base.

Among other things, this is important for economical use in houses with low energy consumption, and also for buildings that need to be heated often only for a few hours a day, such as schools, kindergartens, churches, holiday homes and the like.

The invention is explained in more detail with pictures based on an exemplary embodiment. Shown:

Fig. 1 section through the bearing plate,

Fig. 2 device as a wall element,

Fig. 3 device as a ceiling element,

Fig. 4 view of the bearing plate according to Fig. 1.

The device according to the invention consists mainly of a load-bearing plate 1, and a thermally and acoustically poorly conductive material, for example from a pressed fibrous material, for example from hemp. Instead of hemp, mineral fibrous materials, artificial foams and the like can also be used with advantage.

This bearing plate 1 has on one side a wavy profiling, preferably in the form of rounded elevations 1a and depressions 1b. The elevations have a lateral angle of approximately 30°. These side angles can be significantly different, but they are always less than 45°. The elevations 1a and depressions 1b have a preferably rounded section, in order to avoid the formation of cracks due to temperature changes in the thinly applied plaster layer 11.

In the area of the recess 1b, conduits 4 are provided, which flow from the heating or cooling medium, and are embedded in a layer 7 of a well-heated conductive material, such as hardened hydraulic binder. This thermally conductive layer 7 can be, for example, plaster, liquid screed, concrete or facade plaster, to which metal fibers or metal particles can be added. This layer 7 is made thin, which means that the pipes 5 are only slightly covered by it, to ensure a quick response of the device, while on the other hand effective temperature regulation is possible. Thus, the temperature difference on the ceiling or wall surfaces between the elevation 1a and the depression 1b of the support plate 1 with pipes 5 with a diameter of 8 mm and the same spacing is, for approx. 60 mm, only 0.2 to 0.3 °C, compared to 3.2 °C for a flat support plate with the same pipe distances and dimensions.

In the embodiment according to Fig. 1, this thermally conductive layer 5 fills only the recesses 1b of the supporting plate 1. On the side facing the air-conditioning space, in this embodiment, a cover plate 9 made of a well thermally conductive material, such as metal, is provided, which is connected with a good thermal conductivity to the layer 7 and elevations 1a of the supporting plate 1.

The embodiment according to Fig. 2 shows that the well-conducting thermal layer 7 also covers the upper sides of the elevation 2 of the load-bearing plate 1. At the same time, this layer 7 is, for example, covered with glass fiber fabric 9 or similar, and a plaster layer 11 is applied to it. The fabric 9 made of glass fibers is purposefully placed on the still wet layer 7, and a thin layer 11 of plaster or screed is applied to this when the layer 7 is still wet.

Since, on the basis of the relatively small lateral angle and the high distances between the pipes 5, the upper sides of the elevations 1a of the bearing plate 1, which is made of a good heat-insulating material, form only narrow bands, resulting in a very uniform temperature on the side facing the air-conditioning space of the device.

Inserts 8, for example, are guided through the openings 2 in the support plate, and the support plate 1 is attached to the wall with them.

The fastening of the load-bearing plate 1 to its base can be achieved as shown in Fig. 3 on the basis of the element for fastening the ceilings by having the liquid screed, concrete or plaster flow from the back through the openings 3 to fill the wave profile of the load-bearing plate, whereby the pipes 5 are also watered and thereby embedded. For the implementation of this embodiment, a wooden formwork 12 or the like is useful, which is laid on the elevations 1a of the load-bearing plate 1, and after hardening of the concrete or the like, removed and replaced on the side of the space with a cover plate 10. Instead of the cover plate 10, a single-layer thin plaster 11. The grid of equipment embedded in the ceiling concrete is marked with 6.

The load-bearing plate 1 is shown in Fig. 4. This plate made of thermally poorly conductive material is provided with openings for attachment, for example penetrations 2 for fastening means to the wall W, for example insert 8 and penetrations 3 for the passage of liquid concrete or the like. Pipes 5 for guiding heating or cooling media are preferably embedded on the support plate 1, preferably in turns in liquid concrete, plaster or the like, in such a way that they do not touch the floor recesses 1b, which is the purpose of the retaining ribs 4 arranged at intervals along the support plate 1. the retaining ribs 4 can hold the pipe pivots 5 additionally against the vertical grooves and the horizontal grooves for turning bends. The load-bearing plate 1 is mainly made of fibrous material, such as hemp or mineral wool and so on, or foam made of artificial substances, and on the working side is equipped with pipes 5 on the retaining ribs 4. Such a load-bearing plate can be equipped along the entire height and/ or width, with pipes 5, and it can also, depending on the conditions, be equipped only partially.

The bearing plate 1 can be connected on all four sides with further such bearing plates in a large pipe register, whereby the pipes 5 are guided through the gaps 1c towards the adjacent bearing plates, i.e. to the supply or return lines. Walls and/or ceilings, as well as floors, can be equipped with pipe registers produced in this way with the proposed device for heating and cooling rooms.

The invention is self-evidently not limited to the described examples. Thus, for example, instead of fluid-conducting pipes 5, electric heating cables or combinations of these can be laid on the supporting plate 1 or, for special applications, piezoelectric elements and the like and so on.

Claims (10)

1. A device for heating and/or cooling rooms, for example for residential and office rooms, with a supporting plate, on which heating or cooling media are laid through lines (5), the so-called pipe register, which are embedded in a well thermally conductive layer 7, for example with a hardened hydraulic binder, characterized by the fact that the supporting plate (1) of the device is formed by a wavy profile, that the cross section of the supporting plate (1) on the side facing the air-conditioning space has elevations (1a) and depressions (1b) that cross over the flat side corner (a) into each other, where the lines (5) pass in the area of the depression (1b) of the supporting plate (1) at a certain distance opposite its deepest point, and are covered with a thin layer of mass. 2. Device according to claim 1, characterized in that the thermally conductive layer (7), in which the lines (5) are embedded, together with the elevations (1a) of the supporting plate (1) on their free sides, is covered with a thin layer of plaster or screed. 3. Device according to claims 1 and 2, characterized in that a fabric (9) made of glass fibers is embedded in the plaster layer (11). 4. Device according to claims 1 to 3, characterized in that the supporting plate (1) is made of pressed fibrous material. 5. Device according to claim 4, characterized in that hemp is placed in the material for the supporting plate (1). 6. Device according to claims 1 to 5, characterized in that the supporting plate (1) consists of a foam substance. 7. Device according to claim 1 and one of the following, characterized in that the side angle (a) is < 45°. 8. Device according to claim 1 and one of the following, characterized in that the distance between the lines (5) and the lowest point of the recess (1b) is about 20% of the pipe diameter. 9. Device according to claim 1 and one of the following, characterized in that penetrations (2) and (3) are provided in the area of elevation (1a) of the supporting plate (1). 10. Device according to claim 1 and one of the following, characterized in that the elevations (1a) and depressions (1b) are rounded.