FR2860061A1 - Heating and air-conditioning installation for dwelling premises, has chimney with furnace including evacuation pipes connected with flexible ducts of inner unit of air-conditioning apparatus to distribute cold air over premises - Google Patents

Abstract

The installation has a chimney (1) with a furnace (2) including two evacuation pipes (10) for circulating heated air. An air-conditioning apparatus has an outer unit (20) and an inner unit (21) with two flexible ducts (25) for diffusion of cooled air. The evacuation pipes are connected with the ducts of the inner unit by a Y-shaped connector (30) to distribute cold air over entire premises heated by the chimney.

Description

2860061 HEATING AND AIR CONDITIONING INSTALLATION

  The present invention relates to an installation for alternately ensuring the heating and cooling of a volume, such as a living room.

  In particular, the invention relates to such an installation arranged around a heating unit of the chimney type or tiled stove.

  The use of closed or open fireplaces, or tiled stoves to provide heating for main or complementary living quarters, especially individual, has been renewed, for various reasons of economic or social importance. aesthetic.

  This type of installation is often associated with a certain idea of quality of life and comfort.

  It is the same air conditioning facilities, which after being reserved for mainly professional uses, now arouse the enthusiasm of the general public.

  Conventionally, the air conditioning of living quarters or other outside periods of heating requires a transfer of heat between the volume to be air-conditioned and outside or another area. The known installations comprise an indoor unit, consisting of an evaporator / exchanger, a compressor, and a pressure reducer or capillary, and an outdoor unit composed of a condenser / exchanger.

  The heat transfer is achieved by successive changes of state of a refrigerant fluid, the evaporation of which is accompanied by a heat absorption and the condensation of a release of heat. The evaporator / exchanger allows the fluid to vaporize by absorbing the heat of the environment, which is returned to the outside by the condenser / exchanger when the fluid condenses. Between these two elements, the compressor ensures the circulation of the fluid while increasing its pressure and its temperature while the regulator lowers its pressure to allow its evaporation at temperature base.

  The looping repetition of these functions ensures the air conditioning of the room.

  it is therefore necessary to provide two devices and therefore two completely separate facilities to ensure, on the one hand the main or complementary heating function, and on the other hand the air conditioning function outside the heating periods.

  There are certainly so-called reversible air conditioners that offer a heating function.

  However, this type of installation may possibly be used to provide additional heat energy but it will not provide satisfactory heating of large volumes.

  In addition, it loses much of its effectiveness when the outside temperature drops beyond a certain threshold, the returns of reversible air conditioners being particularly low.

  To overcome these disadvantages, some reversible air conditioners have additional resistances in indoor units, which allows to provide additional heating even when the outside temperature is particularly low.

  It is clear, however, that these solutions remain complex, and therefore expensive, and that they imply in any case important implementation works.

  It is therefore interesting to be able to couple the heating and cooling functions in the context of a single installation, to heat the room and then ventilate it outside the heating period.

  An installation of this type is described in document FR 2 814 227, which relates to a heating installation comprising a heating boiler and a water circulation circuit provided with radiators, a cold generator being disposed in the vicinity of the boiler.

  A heat exchanger makes it possible to transfer to the water circulating in the water circulation circuit the frigories that are generated by the cold generator, and thus provide air conditioning.

  This modality, which is based on the use of the water circulation circuit of the existing central heating installation to circulate chilled water, is not, however, fully satisfactory, since it involves a modification of the heating system, to which a number of new elements must be associated to ensure the air-conditioning function.

  Moreover, this solution can be implemented only in the case where the heating function is performed through a central heating installation, and is not transferable to conventional type of heating such as a chimney or a stove.

  The present invention proposes to overcome the drawbacks mentioned above by proposing an installation combining the heating and air conditioning functions that do not require major structural modifications of the premises or appliances.

  More specifically, the invention exploits the distribution of hot air by the hot air risers of a heating unit. Advantageously, a connection is created between these ducts of hot air and the indoor unit of the air conditioner to thereby obtain a distribution of cold air on all the volumes to be heated.

  The invention will be better understood from the description given below of two possible variants of embodiment and with reference to the appended figures in which: FIG. 1 is a sectional view illustrating a first embodiment of the installation according to FIG. the present invention, implementing a closed fireplace, and - Figure 2 is a sectional view of the installation according to a second embodiment, implementing a tiled stove.

  FIG. 1 represents a first embodiment of the heating and air-conditioning installation according to the present invention, in which a closed fireplace located in the room to be heated or ventilated is associated with an air-conditioning unit which is arranged in a the cellar of the living room.

  In known manner, the chimney (1) is composed of a fireplace (2) which is mounted on a tablet (3) itself arranged on a base (4) resting on the slab (5) of the room, the whole can be semi-recessed in a box (16) masonry.

  The hearth (2) is surrounded by a jamb (6) surmounted by a hood (8) forming the upper part of the chimney (1). A decorative beam (7) can be interposed between the base of the hood (8) and the jamb (6). The fireplace (2) incorporates a fairing (17) receiving in its upper part two exhaust ducts or hot air rise (10) to ensure the circulation of heated air to the upper ends that open to the outside the hood (8) through exit grilles (9).

  For this purpose, the exhaust ducts (10) have a bent shape, the angle formed in the bent portion (15) of said ducts being a function of the inclination of the side walls of the hood (8).

  In a conventional mode of operation of a chimney of this type, the hearth (2) is fed from the front with fuel, usually wood, and the hot air thus produced is conveyed through the hood (8). and discharged through the exhaust ducts (10) to warm the room and diffuse hot air through the grilles (9).

  Also known, the air conditioning unit comprises an outdoor unit (20) connected to an indoor unit (21) by a conduit of known type (22).

  The outdoor unit (20) is disposed outside the building to be equipped and the indoor unit (21) is arranged in the cellar, under the slab (5) and in correspondence with the chimney (1) arranged in the room above.

  For this purpose, the indoor unit (21) will be mounted on a support (23) itself attached to the ceiling. By arranging the indoor unit (21) on a support directly fixed to the ceiling, it reduces the distance separating it from the chimney (1) and can thus greatly limit losses and consumption.

  The indoor unit (21) is connected to a flexible sheath (24), the opposite end of which opens at the bottom of the masonry box (16), to ensure the return of heated air into the room.

  The cooled air will be diffused into the room by means of two flexible ducts (25) connected to the upper part of the indoor unit (21) and opening into the chimney (1).

  The present invention is characterized in that the outlet ducts (25) of the indoor unit (21) of the air conditioning unit are connected to the exhaust ducts (10) on the top of the hearth (2). ) of the chimney (1), by means of a Y-shaped connector (30) which will preferably be arranged at the elbow (15) of the ducts (10) of the chimney. Thanks to the insulated duct connection that is thus made between the indoor unit (21) of the air conditioning unit and the hot air ducts leaving the fireplace hearth, a cold air distribution is created on all volumes heated by the chimney.

  There is thus a particularly compact double-function installation, since it will be possible to pass the ducts (25) of ventilation connected to the indoor unit (21) of the air conditioner on either side of the hearth (2). of the chimney (1), and thus to integrate them into the chimney, so to realize a completely invisible installation in the living room.

  The air conditioning unit can thus be activated outside the heating periods, by injecting the ventilated air by the air conditioning unit into the hot air outlet ducts of the chimney, this operation being able to be carried out manually or by means of an automatic valve (not shown) associated with the connectors (30) Y. The installation according to the present invention also has the advantage of greatly reducing the sound volume of the air conditioner, and thus the inconvenience caused to the occupants of the housing. Similarly, since the air conditioning uses the same outlet as the hot air, the right-of-way work in the dwelling is reduced and it is therefore not necessary to provide a separate and independent distribution system for the conditioned air. hence a significant saving.

  The general operating principle as described with respect to a first embodiment involving a chimney as a heating unit can accommodate other applications.

  Thus, according to a second embodiment of the heating and air-conditioning system according to the present invention, the principle of connecting the air conditioner to the heating unit to an installation in which the chimney is replaced by a stove is applied. in faience.

  According to this variant embodiment, the installation will comprise an air conditioning apparatus consisting as before of an outdoor unit (20) and an indoor unit (21), which is as previously mounted on a support (23) fixed to the ceiling under the slab (5), corresponding to the heating unit, which here consists of a tiled stove (40) disposed in the room. The tiled stove (40) is placed on a base (41) itself placed on the slab (5) of the room.

  The installation also comprises a wood boiler (42) arranged in the cellar, under the slab (5), and comprising a loading door (43) and a heat recovery unit (44). An air return duct (45) passing on the side of the boiler (42) opens at the base of the base (41) of the stove (40).

  The rising heat emitted by the boiler (42) is recovered in two ducts (10 ') from two openings (46) in the portion of the ceiling above the boiler and the opposite ends of which open into the boiler. interior of the stove (40) after passing through the slab (5).

  The evacuation and diffusion of hot air are ensured through two outlet orifices (47) having adjustable grilles (not shown), arranged on either side in the upper part of each of the side walls of the stove. (40), just below his faience ceiling (48).

  The indoor unit (21) of the air conditioning unit is connected to the ducts (10 ') connecting the boiler (42) and the stove (40) via two flexible ducts (25'). The junction between the ducts (10 ') and the flexible ducts (25') is carried out as previously by means of Y-shaped connectors (30 '). It is thus possible, just as in the previous variant, to create a distribution of cold air in the room, when the heating system is not in operation, thanks to the coupling of the ventilation ducts of the air conditioner and the heating air ducts of the heating unit.

  Advantageously, and regardless of the variant embodiment envisaged, the installation may include a reversible type air conditioner, which will provide the additional advantage of allowing the volume to be heated without having to activate the heating system, that is to say, the chimney or the stove. It will thus be possible in a manner that is both simple and rapid to ensure a minimum rise in the temperature of the volume, for example in the event of a moderate fall in the ambient temperature that does not require a start-up of the heating system.

  The heating and air-conditioning system according to the present invention has been described above through two variant embodiments which are however not limiting.

  It will thus easily be possible to transpose the solution proposed by the invention to the case of an installation in which the wood boiler is integrated into the tiled stove, the heating unit is then no longer dissociated. The stove will then have on the front a loading door to feed the wood boiler and a hole on the front for hot air outlet, and the rear part of a heat recovery.

  The connection between the air conditioning unit located in the cellar and the stove will be achieved by means of two flexible ducts running at the rear of the stove and opening into an upper box with an opening for the evacuation of cold air.

  Similarly, the variants described refer to the use of wood as fuel, but it should be understood that any other type of compatible fuel can be used without jeopardizing the general principles of operation of the invention. .

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Claims (9)

  1. Heating and air-conditioning plant, consisting of a heating unit with two exhaust ducts (10) for the circulation of heated air, and an air-conditioning unit consisting of an outdoor unit (20) and an indoor unit (21) having two flexible ducts (25) for diffusing the cooled air, characterized in that the exhaust ducts (10) of the heating unit are connected to the flexible ducts (25). ) of the indoor unit of the air conditioning unit.   Heating and air conditioning system according to Claim 1, characterized in that the discharge ducts (10) form a bend.   Heating and air-conditioning plant according to Claim 1 or 2, characterized in that the connection between the exhaust ducts (10) of the heating unit and the flexible ducts (25) of the indoor unit of the air conditioning unit is realized by means of a connection (30) in Y. Heating and air-conditioning system according to one of the preceding claims, characterized in that the Y-connection (30) is arranged at the elbow (15) of the exhaust ducts (10) of the heating unit. .   5. Heating and air-conditioning system according to one of the preceding claims, characterized in that the indoor unit (21) of the air-conditioning unit is mounted on a support (23) directly fixed to the ceiling.   6. Heating and air conditioning system according to one of the preceding claims, characterized in that the air conditioning unit is of the reversible type.   7. Heating and air-conditioning installation according to one of the preceding claims, characterized in that the heating unit is a fireplace (1) with a focus.   2860061 io Heating and air-conditioning plant according to Claim 7, characterized in that the flexible ducts (25) of the indoor unit of the air-conditioning unit are integrated in the chimney (1).   9. heating and air conditioning system according to one of claims 1 to 6, characterized in that the heating unit is composed of a tiled stove (40) associated with a boiler (42). 15 20 25 30