ES2334737A1 - DOUBLE LAYER WALL WITH AIR CONDITIONING FUNCTIONS. - Google Patents

Abstract

Double layer wall with functions of air conditioning.

This wall allows ventilation with Little thermal jump in intermediate stations. It comprises a layer transparent outer to solar radiation and other inner layer opaque and absorbent of said radiation, being defined between both layers a chamber with a moving air flow through convection when heated by the heat absorbed by the layer inside. The camera is communicated with both the interior enclosure as with the exterior through exterior accesses and accesses interiors equipped with external control dampers and internal regulating gates respectively. It allows the chamber ventilation in hot seasons, without access to outside air to the inner enclosure and therefore prevents accumulations of  temperature in the chamber that can access the interior enclosure by radiation.

Description

Double layer wall with functions of air conditioning.

Object of the invention

The main object of the present invention is a double layer wall with air conditioning functions, optimized to provide functional advantages in any building.

Background of the invention

Currently, double walls are known layer, also called double skin walls, or Trombe walls, which are they can have on the sun-oriented facades a building, to take advantage of solar energy for the purpose of air conditioning.

These walls comprise a first outer layer of a material partially transparent to solar radiation, (typically glass), and another second opaque inner layer absorber of said solar radiation.

Between both layers a camera is defined by where an upward volume of air circulates through convection, when heated by the heat stored in the layer indoor and due to solar radiation.

The camera has a lower communication with the indoor enclosure to be heated, and superior communications paths both with said interior enclosure and with the space or environment Exterior.

In cold seasons the communication is closed upper exterior and the other two open; hot air in movement accesses the interior enclosure through the upper access interior, gives its heat to the environment and descends again to be again aspirated to the camera through the lower access.

In hot seasons the access is opened upper exterior and the upper internal access is closed. At the same time, another access to the interior of the room is opened in a Wall not exposed to the sun. As the heated air rises in the chamber is expelled outside, and the aspiration it causes through Inner lower access in turn causes the entry of air through the wall opening not exposed to the sun, at lower temperature theoretically.

However this system does not offer a good performance in areas with very high temperatures, since the air outside may be at elevated temperatures.

WO 2007/026388 is also known, where a similar constitution is described, but in this case the outer layer is configured by a plurality of portions Transparent folding, equipped with a top opaque visor outgoing in a substantially normal sense and of a drive simultaneous. In winter it works analogously to that described, if it takes air from the outside instead of recirculating the indoor air, in this case the visors are placed in a sensitive position horizontal facilitating a greater entry of solar rays.

In summer the portions are lowered configuring a kind of lattice louvers, very ventilated, which also They provide shade to the inner layer.

However this embodiment is considerably more expensive, and not very versatile, since it does not take advantage indoor air to reheat it, nor does it provide advantages of air conditioning in intermediate stations.

Description of the invention

The double layer wall with functions of air conditioning of the invention has a simple constitution that It also provides functionality in any station.

According to the invention, the wall comprises an outer layer partially transparent to solar radiation, and another opaque and absorbent inner layer of said radiation, remaining defined between both layers a chamber with an air flow that is in motion by convection when heated by the heat absorbed by the inner layer.

To allow air flow and wall functionalities, the camera is communicated with both the interior enclosure as with the exterior, through access superior interiors, superior exterior accesses and accesses interior bottoms, all equipped with floodgates regulation.

According to the invention, they have additionally arranged lower external accesses to the chamber, equipped of the corresponding regulation gates.

This arrangement allows ventilation with little thermal jump in intermediate stations, increasing the wall versatility. In addition it also allows the ventilation of the chamber in hot stations, without outside air access to the interior room and therefore avoiding temperature accumulations in the chamber that can access the interior room.

Description of the drawings

To complement the description that is being performing and in order to help a better understanding of the characteristics of the invention, according to an example preferred practical implementation of it, is accompanied as integral part of that description, a set of drawings where with an illustrative and non-limiting nature, what has been represented next:

Figures 1 to 4.- Sample paths seen in section of the wall of the invention in different possibilities of configuration, and materialized modularly.

Preferred Embodiment of the Invention

The wall of the invention comprises a layer exterior (2) partially transparent to solar radiation, such as glass, and another opaque and absorbent inner layer (3) of said solar radiation, which typically materializes in the work of factory, such as brick wall, concrete, etc.

Between both layers, interior (3) and exterior (4), a chamber (4) full of an air flow is defined and communicated, both with the inner enclosure (5) and with the outside (6), through upper interior accesses (7a), superior exterior (7b), interior inferior (8a) and exterior inferior (8b), these accesses being equipped with floodgates of regulation upper interiors (9a), upper exteriors (9b), Inner lower (10a) and outer lower (10b).

In cold seasons the configuration is adopted shown in figure 1: the floodgates are kept open upper inner (9a) and lower inner (10a), so the heated air by convection returns to the inner enclosure (5) by the  upper interior access (7a), and after giving heat to the environment inside and descend, it is again absorbed into the chamber (4) to through the lower interior access (8a), continuing indefinitely the process while receiving capable solar radiation of heating the air in the chamber (4). Can also be maintained all gates closed (9a, 9b, 10a, 10b), situation no represented. The chamber air warms slightly, configuring a buffer space that increases insulation. The transmittance of the wall decreases.

In warm seasons the configuration is adopted of figure 2, which favors heat dissipation abroad: keep the upper outer gate (9b) and the exterior lower gate (8b) allowing ventilation of the chamber (4) and preventing excessive heat from accumulating in it that can access the interior of the room (5) through the inner layer (3).

In temperate seasons the configurations of figures 3 and 4: can be opened simultaneously the upper outer gate (9b) and the lower interior (10a), or the inner upper gate (9a) and the lower outside (10b) by light ventilation and with Little temperature jump. In these cases an opening is required on another wall of the room (5) to allow air flow. In the case of figure 3, if said opening is arranged in a wall a the shadow, it has an additional cooling effect.

According to a variant of the invention can be include forced ventilation means, typically based on fans, not represented, who cooperate in the movement of the mass of air with convection.

The invention prefers a materialization modular, where each module (1) implements a framework (15) of material resistant (metal, concrete, etc.) where the two layers are mounted, as well as the accesses (7a, 7b, 8a, 8b) and their gates (9a, 9b, 10a, 10b).

Claims (5)

1. Double layer wall with air conditioning functions; comprising an outer layer (2) transparent to solar radiation and another inner layer (3) opaque and absorbent of said radiation, being defined between both layers (2, 3) a chamber (4) with a flow of air moving by convection when heated by the heat absorbed by the inner layer (3), and being said chamber (4) communicated with both the inner enclosure (5) and the exterior (6) through internal upper accesses (7a), upper exterior accesses (7b) and interior lower accesses (8a) equipped with internal upper control gates (9a), upper exterior (9b) and lower interior (10a); characterized in that it also comprises external lower accesses (8b) to the chamber (4), provided with external lower regulation gates (10b). 2. Double layer wall with air conditioning functions according to claim 1 characterized in that it additionally comprises forced ventilation means. 3. Double layer wall with air conditioning functions according to claim 2 characterized in that the forced ventilation means consists of fans. 4. Double layer wall with air conditioning functions according to claim 1, characterized in that the inner layer (3) is made of factory work. 5. Double layer wall with air conditioning functions according to claim 1 characterized in that it comprises a module (1) that implements a frame (15) of resistant material (metal, concrete, etc.) where the two layers are mounted, as well as the accesses (7a, 7b, 8a, 8b) and their gates (9a, 9b, 10a, 10b).