CZ33679U1 - Lamella for a wall or ceiling heating and cooling system - Google Patents

Description

Lamella for wall or ceiling heating and cooling system

Field of technology

The technical solution concerns a lamella for a wall or ceiling room heating and cooling system

Prior art

Metal radiant suspension panels are known from the prior art. Their construction consists in that auxiliary metal surfaces of the heat exchange are pressed onto straight copper pipes, arranged in the plane with the spacing. A typical shape for these bodies is, where the length of the body is significant in the dimensions of the installation. As high temperatures are used for heating, with a large panel length, there is a significant difference in the heating water temperature at the beginning and end of the panel, resulting in an unevenly heated space. In order to maintain turbulent fluid flow, it is necessary to prevent the flow from falling below the minimum values. Laminar flow significantly reduces heat exchange and thus the performance of ceiling radiant panels. When mounted vertically without the use of flow restrictors, the radiative to total heat output ratio is negligible at the high temperatures used and the heat transfer by the convection predominates.

Another prior art is planar radiant heating systems which are formed by planar arrangements of heating pipes. The installation of surface systems can be dry or wet. In the wet method, the heating pipes are mounted on the wall, on the ceiling under the plaster and then plastered. When installed in the floor, they are poured with a concrete screed or are attached to steel reinforcements and concrete mats during the construction of the reinforced concrete skeleton of the building. During heating, hot water flows through the main heating pipes, the heat transfers to the plaster or concrete and, after overcoming the thermal resistance of the materials, radiates to the opposite surfaces of the interior. In the dry mounting method, the pipes are inserted into the milled grooves of the plasterboard. Heat transfer is affected by the thermal resistance of the material that is in contact with the heating pipe. Surface radiant systems are conservative in terms of possible layout changes of the building and the large storage capacity does not allow immediate changes in interior temperature, which causes thermal discomfort, especially in the transition period.

Hitherto known radiant systems use auxiliary surfaces for the realization of radiation, while the heat from the main copper pipes is transferred by a transfer with a loss of temperature to the auxiliary surfaces. The difference in the mean heating temperature and the mean temperature of the radiant surface normally reaches 10% to 20%, which results in increased heat consumption.

From the state of the art there are also signs of systems where the pipes with the heat transfer medium are led between profiles (CD profile) for plasterboard, resp. gypsum fiber boards.

As for the management of the system between the profiles, this system is aimed at subcontractors who supply already finished parts or directly ordered to measure. And according to these parts, the profiles must be prepared so that they fit between them. Tailor-made parts are more expensive, and generally finished parts are also more expensive than supplied rolls, from which we can take as many meters as we need. These parts must then be interconnected by couplings, there is a possibility of possible leakage of liquid, this possibility increases with the number of connections. CD profiles are made of galvanized bent sheet metal, their thermal conductivity is lower than the system we supply. Managing the system directly in the boards is more costly.

- 1 CZ 33679 U1

The essence of the technical solution

The above disadvantages are eliminated by a lamella for a wall or ceiling heating and cooling system. The essence of the technical solution lies in the fact that it comprises two vertically guided sides which are connected by a horizontally guided side in which an open clamping groove is formed, the three closed sides of the clamping groove being recessed below the plane of the horizontally guided side. In order for the heat transfer medium pipes, which snap into the clamping groove to hold in this clamping groove, the clamping groove is designed in such a way that the first two adjacent sides form an angle "a" of less than 90 ° with each other and the other two adjacent sides form angle 90 °. According to another advantageous solution, in each case two adjoining sides of the clamping groove form an angle "a" of less than 90 ° with one another. For the transfer of heat from the lamella to the surroundings, it is advantageous to form openings in the vertically guided sides of the clamping groove.

The advantages of the technical solution are that there is no lengthy assembly of CD profiles. The slats are simply attached to the ceiling or wall next to each other. The pipe system is snapped into the slats from the supplied roll, ie the pipe system is complete and there are no unnecessary connections, which can be weak points. There is also no need to consume large pipes, because heat and cold are transferred through the lamella and its surfaces.

Explanation of drawings

The technical solution is explained in more detail in the attached drawings, which show:

GIANT. 1 - axonometric view of the lamella

GIANT. 2 and 3 - shape solutions of the clamping groove

GIANT. 4 shows the mounting of the slats on a ceiling or wall with placed pipes carrying a heat transfer or cooling medium

Examples of technical solution

The lamella 10 for a wall or ceiling heating and cooling system is made of aluminum or another material with good thermal conductivity. The lamella 10 is formed as a profile element which consists of two vertically guided sides 1, which are connected by a horizontally guided side 2. An open clamping groove 4 is formed in the horizontally guided side 2, three closed sides 4,1 being recessed below the horizontally guided plane. sides 2. Fastening sides 3 with openings 3,1 are connected to the open ends of the vertically guided sides 1, by means of which the lamella 10 is fixed to the ceiling or to the wall. Pipes 5 are fastened to the clamping groove 4, in which water for heating or cooling circulates (FIG. 4). In order to hold the tubes 5 in the clamping groove 4, the clamping groove 4 is formed so that at least the first two consecutive sides 4,1 form an angle α of less than 90 ° and the second two consecutive sides form an angle of 90 ° (Fig. 2). ). The ideal state for snapping and fixing the pipes in the clamping groove 4 is when the first two and the second two consecutive sides 4,1 of the clamping groove 4 always form an angle "a" of less than 90 ° with each other (Fig. 3). For radiant heat transfer from the lamella 10 to the surroundings, it is suitable to create circular openings 1,1 in the vertically guided sides. Gypsum plasterboard or gypsum fiber boards are mounted on the horizontally guided sides 2, from which heat or cold, depending on the water temperature, is transferred to the surroundings.

Claims (4)

CLAIMS FOR PROTECTION A lamella (10) for a wall or ceiling heating and cooling system, characterized in that it comprises two vertically guided sides (1) which are connected by a horizontally guided side (2), -2GB 33679 U1 in which an open clamping groove (4) is formed, the three closed sides (4.1) of the clamping groove (4) being recessed below the plane of the horizontally guided side (2). Slat according to claim 1, characterized in that the first two consecutive sides (4.1) 5 the clamping grooves (4) form an angle of less than 90 ° with each other and the other two adjoining sides (4.1) of the clamping groove (4) form an angle of 90 °. The lamella according to claim 1, characterized in that in each case two adjoining sides (4.1) of the clamping groove (4) form an angle α of less than 90 ° with one another. it Slat according to Claims 1 to 3, characterized in that openings (5) are formed in the vertically guided sides (1).