FR2800861A1 - Condensation collector for building walls has capture plate with gutter and collection tube for condensed water - Google Patents

Abstract

The condensation collector for building walls has a capture plate (1) having a lower temperature than ambient air and connected to a collection tube. The capture plate has a gutter (2) to collect water running down it and have a drain opening at its base. The plate and gutter are curved inwardly at their base to prevent accumulation of stagnant water

Description

In the building, and more particularly, in the dwelling, the water vapor contained in the ambient air cannot be eliminated completely with the existing systems currently on the market. The excess therefore tends to deposit the cold spots of the external walls commonly called thermal bridges. The absorption of condensed water the support gives rise to biological and chemical reactions with materials whose effects are unsightly and unhealthy for humans: molds cause allergic reactions in some subjects.

The present invention consists in causing the condensation of this excess water vapor and in evacuating it, in selected places, by means of the system described below. This system can be used both in the case of new construction, as a preventive measure, as in the case where the phenomenon of condensation has already occurred in existing construction for curative purposes.

The principle consists in protecting the cold spots on the internal surface of the premises by adding a collecting surface at a lower temperature than that of the points to be protected. The water vapor will condense first on the latter.

Since the interior surface temperature of the walls is always higher than the exterior temperature, the collecting surface must be at a temperature close to that of the exterior. It will therefore be connected to the outside via a material that is very heat conductive and will transmit this temperature to it.

For reasons of reliability and maintenance, this material must remain insensitive and unalterable with water.

 For the two reasons explained above (conductive and unalterable), this material may be stainless steel or aluminum.

A collecting plate (1) with a surface area of the order of a square decimeter is attached to the interior wall of the room to be protected. It has a device (channel 2) for collecting the condensed water to discharge it outside via a tube (3) which passes through the wall. facilitate the runoff of water on the plate (1) it can be striated with the point of competition, the bottom of the channel (2).

to avoid stagnation of water, the channel (2) is preferably semi-circular with its low point in perfect agreement with the low point of the tube (3). Therefore, the sensor plate (1) can have any shape subject to a gravity flow of water in the channel (2).

tube (3), inclined outwards for the gravity drainage of the water, will be dimensioned in length to overflow from the external wall in order to prevent the water from infiltrating. It is integral with the plate (1), described above to transmit the outside cold to it so that it is at a lower temperature than any point on the inside surface of the room to be protected.

primary use is to evacuate the water, but it can be fitted with mosquito nets to prevent the passage of insects, non-return valve to prevent backflow of water under wind pressure, storm shield or deflector at the outer end.

diameter of the tube (3) can be adapted to the regulated air flow rates in the construction in the case of use in the presence of forced ventilation. in this case, this device will combine air intake and evacuation of the condensation.

its basic form, the device can be incorporated into the masonry during construction.

in the case of existing masonry, the device can be modified as follows: the tube (3) will then consist of two concentric tubes split longitudinally, forced into a hole drilled in the wall; one from outside to inside, the other from inside to outside.

accompanying drawings illustrate the invention in its basic form Figure 1 shows the block diagram of the invention.

The figure shows, in section the device of the invention. FIG. 3 represents the interior face view of the device. Figure 4 shows the device in place in a wall.

The dimensioning of this device and the number of parts to be installed in a room will depend on the interior temperature of the room and the water content of its ambient air. For aesthetic reasons, in housing, the square decimetre has been proposed above.

Such a device can effectively replace a moisture absorber which requires product replacement and often manual water evacuation.

Manufactured in series, its cost can be lower compared to the costs of repairing damaged places.

Claims (6)

1) Device for causing and removing condensation of excess water vapor in a room, characterized by a collecting plate (), brought to a temperature lower than the ambient air or the surrounding surfaces, by its connection with the atmosphere external means of a tube () which also serves to evacuate the condensed water. 2) Device according to claim 1 characterized in that the sensor plate (1) is provided with a channel (2) for collecting the dripping water from the plate and an outlet orifice in its lower part. 3) Device according to claims 1 and 2 characterized in that this collecting plate (I) and its channel (2) are curved in their lower part to avoid stagnation of water. 4) Device according to claim 1 characterized in that the tube (3) is slightly inclined to facilitate the gravitational evacuation of water from the channel (2). 5) Device according to claim 1 characterized in that the tube (3) is integral with the plate (1) to transfer the outside temperature and to seal the evacuation system. 6) Device according to claim 1 characterized in that the material used is very heat transferable and unalterable for reasons of efficiency, reliability and maintenance.