FR2982345A1 - Installation for production of warm water for single-family housing, has control units e.g. flap, for selectively directing exhaust air passing through heat exchange units to pipe and/or for directing air outwardly of housing - Google Patents

Abstract

The installation (102) has an air extraction system (106) that is associated with a single-family housing (100) for extracting air from the housing and for providing the air to outside of the housing. An air blowing pipe (124) is arranged with the air extraction system in the housing. The air blowing pipe is arranged downstream of a set of heat exchange units e.g. evaporator (112). A set of control units e.g. flap (128), is utilized for selectively directing exhaust air passing through the heat exchange units to the air blowing pipe and/or for directing air outwardly from the housing. An independent claim is also included for a method for application of a hot water generating station.

Description

The present invention relates to a plant for producing hot water and a method for implementing such an installation.

It is known, for example from application FR-A-2 941 521, a combined ventilation system of a room and water heater, for an individual dwelling, comprising an air extraction network from the housing, the network being provided with a fan adapted to create a flow of exhaust air in the network. The installation also includes a water heater adapted to contain water to be heated by means of at least a portion of the exhaust air flow. The network is adapted to modify the extraction air flow for heating water according to the operating state of the water heater. The exhaust air stream is then rejected outside the housing. This installation makes it possible to adapt its energy consumption according to the need for hot water.

Furthermore, it is known from FR-A-2 926 626, a collective installation 10 hot water production as shown in Figures 1 and 2. This collective installation 10 hot water production comprises a plurality of individual installations 12 each arranged in a housing 14 of the collective dwelling 16. Each individual installation 12 comprises a thermodynamic water heater 18 for extracting calories from the air extracted from the housing 14 by an individual extraction network 20 The air is then extracted in a conduit 22 of a common extraction network 24. The common extraction network is provided with a fan 26 for extracting the air. from dwellings 14 to the exterior of the collective dwelling 16.

The installations described in documents FR-A-2 941 521 and FR-A-2 926 626 do not allow in any case to lower the temperature of a housing or part of a housing. The object of the present invention is to provide an improved hot water production facility.

More particularly, the invention aims to provide a hot water production facility for cooling the temperature of all or part of the housing in which it is installed with low energy consumption. To this end, the present invention provides a hot water production installation for a housing, the installation comprising: - an air extraction network associated with the housing for extracting air from the housing to the outside of the housing, the air extraction network being adapted R: 333100333183 ATLC333183-111028-patent application tq filed.doc 04/11/2011 17:37:42 1/15 183 ATLC 2 to bring at least a part of the air extracted through means of heat exchange with water to be heated; - An air blowing duct in the housing, stitched on the air extraction network, downstream of the heat exchange means; and - steering means for selectively directing the extracted air passing through the heat exchange means, to the air blowing duct and / or to the outside of the housing. According to preferred embodiments, the invention comprises one or more of the following characteristics, taken alone or in combination: the heat exchange means comprise an evaporator, a condenser and a refrigerant circuit between the evaporator, where air extracted from the housing exchanges heat with the refrigerant, and the condenser, where the refrigerant exchanges heat with the water to be heated; - The steering means comprise a fan adapted to create a flow of air insufflation in the insufflation duct; the fan is further adapted to create an air extraction flow in the extraction network; the air extraction network comprises a first branch and a second branch, distinct upstream of the heat exchange means, the first branch being adapted to extract air from a first group of parts of the housing; second branch being adapted to extract air from a second group of parts of the housing, distinct from the parts of the first group of housing parts, the insufflation duct being adapted to inject air into at least one room of the second group of housing parts; - The hot water production installation comprises means for preventing the extraction of air from the housing through the second branch; the air extraction network comprises a bypass duct of the heat exchange means and second steering means for directing the flow of extracted air into the bypass duct and / or through the exchange means heat ; the second steering means are adapted to selectively direct the flow of air extracted from the first branch towards the outside of the housing and the flow of air coming from the second branch towards the heat exchange means; - The steering means for selectively directing the extracted air passing through the heat exchange means, to the air blowing duct or to the outside of the housing, comprise a valve adapted to selectively close all or part of the air supply pipe or prevent all or part of the R: 333100333183 ATLC333183-111028-patent application tq filed.doc 04/11/2011 17:37:42 2/15 183 ATLC 3 fluid communication between the means heat exchange and the outside of the housing; - The hot water production plant comprises an electronic control unit adapted to receive a set of instructions, including a heating set of water to be heated and / or cooling set of a room of the housing in which opens the air blowing duct, and to control, according to said setpoint, the steering means and / or the second steering means and / or the operation of an exhaust air fan, if appropriate.

The invention also relates to a collective hot water production plant for a collective dwelling comprising a plurality of dwellings, the collective installation comprising: a hot water production installation as described above in all its combinations, associated with each dwelling; - An air extraction network common to the various housing, in which open air extraction networks associated with each housing, to extract the air from the housing to the outside of the collective housing. Preferably, the collective hot water production installation comprises a common air exhaust fan, disposed in the common air extraction network. The invention also relates to a method of implementing a hot water production plant as described above in all its variants, or a collective hot water production plant as described above. in all its variants, the method comprising a step of controlling at least one of the steering means, the second steering means, an exhaust fan and the heat exchange means as a function of a set point for heating the water to be heated and / or a set point for cooling the air in a room into which the air blowing duct opens.

Other features and advantages of the invention will appear on reading the following description of a preferred embodiment of the invention, given by way of example and with reference to the following appended drawings: FIGS. 2 represent a known collective hot water production facility; - Figure 3 schematically shows an individual housing with a hot water production installation according to a first example; ATLC \ 33183-111028-patent application tq filed.doc 04/11/2011 17:37:42 3/15 183 ATLC 4 - Figures 4 to 7 show details of different examples of collective production installations hot water. In the remainder of the description, identical or identical elements of the different examples bear the same reference number.

As illustrated in FIG. 3, an individual dwelling 100 is provided with a hot water production installation 102. The individual dwelling 100, in this case a single-family dwelling, comprises a plurality of rooms 104a, 104b, 104c. , 104d distinct. The hot water production installation firstly comprises an air extraction network 106. The air extraction network 106 is adapted to extract air from inside the individual housing 100, especially from the water rooms like the bathroom or sanitary, to reject it outside the individual housing 100, in this case in the atmosphere. To do this, the air extraction network 106 here comprises two branches 1061, 1062 which open into different rooms 104a, 104b, 104c, 104d, individual housing 100 through mouths 108a, 108b, 108c, 108d. These mouths can in particular make it possible to regulate the flow of extracted air as a function of the humidity or of the pollution of the air in the various rooms 104a, 104b, 104c, 104d. The extraction network 106 is provided with a fan 110 to create an air extraction flow. In this case, a first branch 1061 of the extraction network opens into rooms 104b, 104c, 104d. The second branch 1062 opens into a room 104a. A damper or damper 109, adapted to allow or interrupt the passage of air in the second leg 1062, is disposed in the second leg 1062. Furthermore, the air extraction network 106 is adapted to bring the extract air through heat exchange means with water to be heated. In this case, this is achieved because the air extraction network 106 passes through an evaporator 112 of a thermodynamic water heater 114. The thermodynamic water heater 114 is here disposed in the room 104a where the second opens branch 1062 of the extraction network 106.

In the evaporator 112, located downstream of the fan 110 to ensure the flow of air passing through the evaporator, the hot extracted air loses calories in favor of a refrigerant which goes into the gaseous state. The refrigerant circulates in a circuit 116. This circuit, well known to those skilled in the art, integrates, in the order of the circulation of the refrigerant between two passages in the evaporator 112: - a compressor 118, to implement circulates the refrigerant by increasing its pressure and temperature; R: 333100333183 ATLC333183-111028-patent application tq filed.doc 04/11/2011 17:37:42 4/15 183 ATLC - a condenser where the refrigerant yields calories to the water to be heated contained in a tank 120 ; and a regulator 122 for reducing the pressure of the refrigerant. The condenser can either be immersed in the tank 120 or surround the tank 120. It should be noted here that, in a variant of the installation shown in FIG. 3, the damper or the damper 109 can be integrated inside. thermodynamic water heater 114. The hot water production system 102 also comprises an air insufflation conduit 124 extracted to the housing. In this case, the insufflation duct 124 opens into the room 104a where opens the second branch 1062 of the extraction network 106. The insufflation duct 124 is stitched on the extraction network 106 downstream of the evaporator 112. The network 124 thus allows recycling, recirculation of the extracted air to one or more rooms of the housing from which the air has been extracted. By insufflation is meant here that the air is blown into the housing and not extracted. The extraction network 102 further comprises a conduit 126 opening out of the housing 100. In this case, the conduit 126 opens into the atmosphere. The hot water production installation 102 finally comprises a valve or flap 128 for selectively directing the extracted air passing through the evaporator 112 to the insufflation duct 124 or to the duct 126 opening out of the housing 100. Here, the fan 110 is also used to direct the extracted air to the insufflation duct 124. In other words, the hot water production installation 102 comprises steering means for selectively directing extract air passing through the evaporator 112 to the air blowing duct, which steering means comprise in the example of Figure 3 a valve 128 and the fan 110. The insufflation duct 124 allows directing the extracted air previously cooled during its passage through the evaporator 112 to at least one part of the housing 100. This allows the interior of this part of the housing to be cooled. According to the example given here, the insufflation duct 124 opens into the room 104a where opens the second branch 1062 of the extraction network 106. Therefore, only this room is cooled by the hot water production installation . Alternatively, the insufflation duct 124 can be arranged to open in more than one room of the housing and / or in another part of the housing that the room in which opens the second branch 1062 of the extraction network 106. The flap 128 can be in different positions. R: 333100333183 ATLC333183-111028-patent application tq deposited.doc 04/11/2011 17:37:42 5/15 183 ATLC 6 In a first position, the valve 128 closes the stitching of the insufflation duct 124. In In other words, the valve 128 prevents extracted air from passing into the insufflation duct 124. In this first position of the valve 128, all of the extracted air is evacuated outside the housing 100 via the duct 126, after at least a portion of the extracted air has passed through the evaporator 112 of the thermodynamic water heater 114. This position of the valve 128 thus makes it possible to extract a large amount of air from the housing, which allows a renewal of the air important. On the contrary, in a second position, the valve 128 prevents extracted air from passing into the conduit 126 opening out of the housing 100. In this case, all the extracted air, of which only a part may have passed through the evaporator 112 is blown into the room 104a, via the insufflation duct 124. This position of the valve 128 allows to cool more quickly or parts 104a in which or in which the insufflation duct 124 opens.

To obtain these two extreme positions, a valve 128 with two positions can be implemented. However, the valve is preferably a proportional valve, that is to say it is adapted to take at least a number of intermediate positions between the two end positions described above. In these intermediate positions of the valve 128, a compromise is obtained between the cooling of a housing part and the renewal of the air in the housing. Furthermore, the installation 102 may comprise an electronic control unit adapted to receive a setpoint, in particular a set point for heating the water to be heated contained in the tank 120 and / or a set point for cooling the piece 104a, and order, depending on the setpoint, the position of the valve 128 and / or the operation of the fan 110. By way of non-limiting example, the setpoint received may be binary (either the water must be heated, or no, or It is necessary to cool the part 104a (either no) or to be a target value to be reached for the temperature of the water or the temperature in the part 104a. In the latter case, the electronic control unit can receive from at least one temperature sensor a water heating set point temperature and / or a cooling set point temperature of the room (s) 104a, and to be controlled the position of the valve 128 and / or the operation of the fan 110 as a function of the temperature or the corresponding temperatures measured.

Furthermore, the insufflation duct 124 may, alternatively, open into an isolated volume to cool within the housing 100, such as a wine cellar, a vegetable refrigerator or even a cold room. R: 333100333183 ATLC333183-111028-patent application tq filed.doc 04/11/2011 17:37:42 6/15 183 ATLC 7 FIG. 4 represents a detail of a collective installation 200 for the production of hot water for a collective dwelling comprising a plurality of dwellings. This collective installation 200 includes a hot water production installation 100 as described above with reference to FIG. 3, associated with each of the dwellings 100 of the collective dwelling. However, in the case of the collective installation 200, the duct 126, instead of opening directly into the atmosphere, opens into a common air extraction duct 202 of a common air extraction network, to allow the extraction of air in individual dwellings. The common air extraction network may be provided with a common air exhaust fan to facilitate the extraction of air from the different housing. This makes it possible in particular to limit the dimensioning of the fans 110, which can be implemented for extracting air from the individual dwellings, which constitutes a gain in energy consumption and a reduction in the noise nuisance caused by the operation of the fans. 110.

FIGS. 5 to 7 show the same detail of a collective hot water production installation 300. Only the elements differentiating this installation 300 from the installation described with reference to FIG. 4 are described in detail in the following. The installation 300 differs from the installation 200 by: - a duct 302 bypassing the evaporator 112, and - a register 304 disposed in the bypass duct 302, which allows or on the contrary prevents the passage of air to through the bypass duct 302, by means of the valve 109, directing the flow of extracted air via the first branch 1061 of the extraction network 106.

Figures 5 to 7 correspond to different configurations of the valves 109, 128 and the register 304. In the configuration of Figure 5, the valve 109 prevents the extraction of air from the housing via the second branch 1062. Air is extracted from the housing only via the first branch 1061. The valve 128 prevents it from blowing air into the housing via the insufflation duct 124. Finally, the damper 304 allows the passage of extracted air into the bypass duct 302. In this configuration, the extracted air tends not to pass through the evaporator 112. This configuration is therefore preferred when there is no need to heat the water present in the tank 120. The losses of load between the upstream and downstream of the thermodynamic water heaters 114 are considerably reduced in this configuration, because the extracted air passes through the evaporator 112. The fan 110 can be stopped, the extraction of air from the indi housing viduals being realized by means of the R: 333100333183 ATLC333183-111028-patent application tq filed.doc 04/11/2011 17:37:42 7/15 183 ATLC 8 common fan. The electronic unit mentioned above in the installation can thus control the fan 110, either all or nothing (on / off) or discrete or continuous. The configuration of Figure 6 differs from the configuration of Figure 5 only in that the damper 304 is in its blocking position, in which it prevents the passage of air through the bypass duct 302. In this configuration, the air extracted from the housing, via the first branch 1061 of the extraction network 106 is guided in the evaporator 112 where it will lose calories. This configuration therefore allows the extraction of air from the housing and the heating of the water contained in the tank 120 of the thermodynamic water heater. Finally, in the configuration of FIG. 7, the valve 109 directs the flow of extracted air via the second branch 1062 of the extraction network 106 to the evaporator and the flow of air extracted via the first branch 1061 towards the bypass duct 302, - the damper 304 is passing to direct the flow of air extracted via the first branch 1061 directly to the conduit 126 opening into the common air extraction network, without going through the evaporator 112 of the heater thermodynamic water, and - the valve 128 directs the flow of exhaust air through the evaporator 112 to the insufflation duct 124. This configuration thus allows: - to cool the room or rooms into which the insufflation duct opens 124, the air which is extracted via the second branch 1062 being cooled in the evaporator, - to ensure the extraction of air in the other parts of the housing, via the first branch 1061 of the extraction network, this air extract being rejected in the common network 202. Of course the facilities described above are only examples and many variations thereof can be imagined. It should be noted, in this respect, that the installations described with reference to FIGS. 4 to 7 can be adapted to an individual housing by opening conduit 126 directly outside the housing 100 rather than in an extraction duct. common air. In the latter case, an additional fan, which can be controlled according to the state of the register 304, can be integrated in the conduit 126.

The valves and / or registers may be replaced by valves or any other device to prevent the passage of an air flow in a conduit and / or to direct a flow of air between two ducts. R: 333100333183 ATLC333183-111028-patent application tq deposited.doc 04/11/2011 17:37:42 8/15 183 ATLC 9 The valves and / or registers can be controlled simultaneously, by a single common mechanical device, or, on the contrary, be controlled separately from each other, each being associated with a particular actuator. These valves may also not be of the binary type but have a multitude of positions and be controlled by an electronic control unit according to the need for heating water, the need for cooling in a room of the housing. The described installations may further comprise an electronic control unit adapted to receive a setpoint and to control, as a function of this setpoint, the position of the various valves and / or registers and / or the operation of the various extraction fans. The setpoint can correspond to a manual setpoint, or to an estimated setpoint or determined by measurement. The set point can in particular be representative of a need for heating the water to be heated in the tank 120 or a need for cooling of at least one part of the housing. The setpoint can be binary (need or not need to heat the water, need or not need to cool a room) or take the form of a set value, that is to say a target value to reach for the temperature of the water to be heated and / or a target value to reach for the temperature of the air in a room to be cooled.

Thus, the electronic control unit can be adapted to receive at least one water temperature probe, the temperature of the water to be heated and to control the position of the different valves and / or registers and / or the operation different fans to heat the water or, on the contrary, to refresh one or more rooms, or simply limit the pressure drop in the extraction network.

The installations described above can make it possible to implement the following method, which comprises a step of controlling at least one of the valves, the registers, the fan or fans, the opening of the evaporator and the operation of the compressor of the refrigerant circuit in the thermodynamic water heater according to a set point for heating the water to be heated and / or an air cooling set point in a room into which the duct opens. air insufflation. In the case where the water heating set point and the air cooling set point are zero, that is to say that there is no need to heat the water or cool the water. the air, we can control the various elements mentioned above to: - direct all or almost all of the air flow extracted from the first branch 1061 of the extraction network to the outside of the housing, and R: The ATLC333183-111028-patent application tq filed.doc 04/11/2011 17:37:42 9/15 183 ATLC 10 - prevent the extraction of air through the second branch 1062 of the extraction network, the heat exchange between the extracted air and the water to be heated being preferably prevented.

In the case where the water heating setpoint is positive and the air cooling setpoint is positive or zero, that is to say that there is need to heat the water but that it it is not necessary to cool the air in a room), it is possible to control the various elements mentioned above to direct the totality of the extracted air flow through the first branch towards the means of heat exchange, then to the outside of the housing, the extraction through the second branch being preferably prevented. Finally, in the case where the water heating set point is positive and the air cooling setpoint is negative, ie there is a need for heating the water and air cooling in a room, we can order the various elements mentioned above to: - direct the flow of air extracted through the first branch of the extraction network to the outside of the housing, without going through the means of heat exchange, and - directing the extracted air flow through the second branch of the extraction network to the heat exchange means and the air blowing duct. The water heater is advantageously of the type described above but can also be a simple exchanger or any other type suitable for installation. The hot water installation can be arranged in any room of the dwelling. The vents of the branches of the extraction network and the insufflation duct, can then lead into any room of the housing. Furthermore, it should be noted that the fans 110 are here used to perform the extraction of air from the individual housing and to blow the cooled air into the housing. To perform this latter function only, the fans 110 can be arranged in the insufflation duct 124. In this case, the extraction of air from the individual housings can be performed by the common air exhaust fan, in the case of a collective installation provided with such a fan. The extraction of air can also be carried out by means of individual fans provided in the duct 126. Finally, the air blowing in the individual housings 100 is carried out elsewhere, either by air inlets at the windows. or by a mechanized network RA33100 ATLC \ 33183-111028-patent application tq filed.doc 04/11/2011 17:37:42 10/15 183 ATLC 11 (dual-flow mechanical ventilation system) equipped with a fan that can be slaved to that of the thermodynamic water heater. RA33100 \ 33183 ATLC \ 33183-111028-patent application tq filed.doc 04/11/2011 17:37:42 11/15

Claims (13)

REVENDICATIONS1. Hot water production installation (102; 200; 300) for a housing (100), the installation comprising: - an air extraction network (106) associated with the housing (100) for extracting air from the housing (100) towards the outside of the housing, the air extraction network (106) being adapted to bring at least a portion of the air extracted through means (112, 116) for exchanging air. heat with water to heat; - An air supply duct in the housing (124), stitched on the air extraction network (106), downstream of the heat exchange means (112, 116); and - steering means (110, 128) for selectively directing the exhaust air passing through the heat exchange means (112, 116) to the air supply duct (124) and / or to the outside the dwelling. The hot water production plant according to claim 1, wherein the heat exchange means (112, 116) comprises an evaporator (112), a condenser and a refrigerant circuit (116) between the evaporator (112), where air extracted from the housing exchanges heat with the refrigerant, and the condenser, where the refrigerant exchanges heat with the water to be heated. 3. Hot water production plant according to claim 1 or 2, wherein the steering means (110, 128) comprises a fan (110) adapted to create a flow of air blowing into the insufflation duct. (124). The hot water production plant according to claim 3, wherein the fan (110) is further adapted to create an exhaust air flow in the extraction network (106). 5. Hot water production plant according to one of claims 1 to 4, wherein the air extraction network (106) comprises a first branch (1061) and a second branch (1062), distinct upstream. heat exchange means (112, 116), the first leg (1061) being adapted to extract air from a first group of parts (104b, 104c, 104d) of the housing, the second leg (1062) being adapted to extract air from a second group of parts (104a) of the housing, distinct from the parts (104b, 104c, 104d) of the first group of housing parts, the insufflation duct (124) being adapted to RA33100 \ In this invention, air is blown into at least one part (104a) of the second group of housing parts. Hot-water production plant according to claim 5, comprising means (109) for preventing the extraction of air from the housing (100) through the second branch (1062). Hot water production plant according to any one of the preceding claims, wherein the air extraction network (106) comprises a duct (302) for bypassing the heat exchange means (112, 116). and second steering means (109, 304) for directing the flow of extracted air into the bypass duct (302) and / or through the heat exchange means (112, 116). The hot water production plant according to claims 5 and 7, wherein the second steering means (109, 304) is adapted to selectively direct the flow of air extracted from the first branch (1061) outwardly. housing and air flow from the second leg (1062) to the heat exchange means (112, 116). 9. hot water production plant according to any one of the preceding claims, wherein the steering means (110, 128) for selectively directing the extracted air passing through the heat exchange means (112, 116). , towards the air supply duct (124) or outwardly of the housing, comprise a valve (128) adapted to selectively close all or part of the air supply duct (124) or to prevent all or part of fluid communication between the heat exchange means (112, 116) and the outside of the housing. 10. Hot water production installation according to any one of the preceding claims, comprising an electronic control unit adapted to receive a setpoint, in particular a heating setpoint of the water to be heated and / or a cooling setpoint of a piece (104a) of the housing into which the air blowing duct (124) opens out, and to control, according to said setpoint, the steering means (110, 128) and / or the second steering means ( 109, 304) and / or the operation of an exhaust fan (110), if appropriate. RA33100 \ 33183 ATLC \ 33183-111028-patent application tq filed.doc 04/11/2011 17:37:42 13/15183 ATLC 14 11. Collective installation (200; 300) of hot water production for a collective dwelling comprising a plurality of housings, the collective installation comprising: a hot water production installation according to any one of claims 1 to 10; associated with each dwelling; a network (202) for extracting air common to the various dwellings, into which the air extraction networks associated with each of the dwellings open, to extract the air coming from the dwellings towards the outside of the dwelling; collective. 12. Collective hot water production plant according to claim 11, comprising a common air exhaust fan disposed in the common air extraction network. 13. A method of implementing a hot water production plant according to any one of claims 1 to 10, or a collective hot water production plant according to claim 11 or 12, the method comprising a step of controlling at least one of the steering means (110, 128), the second steering means (103, 304), an exhaust fan and the heat exchange means (112). , 116) as a function of a set point for heating the water to be heated and / or a set point for cooling the air in a room (104a) in which the air supply duct (124) opens out . RA33100 \ 33183 ATLC \ 33183-111028-patent application tq filed.doc 04/11/2011 17:37:42 14/15