EP4390240A1 - Gray water heat exchanger assembly and device - Google Patents

Gray water heat exchanger assembly and device Download PDF

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Publication number
EP4390240A1
EP4390240A1 EP23219682.4A EP23219682A EP4390240A1 EP 4390240 A1 EP4390240 A1 EP 4390240A1 EP 23219682 A EP23219682 A EP 23219682A EP 4390240 A1 EP4390240 A1 EP 4390240A1
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EP
European Patent Office
Prior art keywords
receiver
heat exchanger
waste water
collection tank
wastewater
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP23219682.4A
Other languages
German (de)
French (fr)
Inventor
Xavier Balduini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tineko
Original Assignee
Tineko
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Filing date
Publication date
Application filed by Tineko filed Critical Tineko
Publication of EP4390240A1 publication Critical patent/EP4390240A1/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/0005—Domestic hot-water supply systems using recuperation of waste heat
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D21/0001—Recuperative heat exchangers
    • F28D21/0012—Recuperative heat exchangers the heat being recuperated from waste water or from condensates
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C2001/005—Installations allowing recovery of heat from waste water for warming up fresh water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/16—Waste heat
    • F24D2200/20—Sewage water

Definitions

  • the technical field concerns more particularly that of heat exchangers for domestic use for the recovery of heat contained in wastewater, and even more particularly gray water.
  • gray water we mean household water, that is to say commonly wastewater which comes from domestic use, such as the washing of utensils and clothes, as well as the washing of people.
  • gray water is domestic waste water excluding toilet and urinal water. They include water from bathrooms (showers, bathtubs, sinks), washing machines and water from the kitchen (sinks, dishwashers).
  • This gray water is known to be not very dirty, it contains particles or chemicals such as surfactants, food waste, dead skin, hair, etc.
  • Heat recovery in industry is done in a known manner by large, bulky, heavy heat transfer devices.
  • Such an industrial device has a large footprint and dimensions. However, there is little free space in or near a shower.
  • Such an industrial device has an interesting performance for continuous use. However, a shower only takes a few minutes. The device must be adapted to transfer calories as early as possible and as large a quantity as possible over a short period of time.
  • Such an industrial device includes filtration and maintenance means.
  • filtration and maintenance means in the context of a shower, it is already difficult to find a space to place the device, the need to fit a hatch or an access hole makes the integration of said device more difficult. This access is all the more important as the heat exchange requires the largest possible exchange surface, and any residue or film on the exchange surface impairs the performance of the device. It is therefore important to be able to clean or carry out regular maintenance on the inside of the device.
  • the document FR3106878 teaches a heat exchanger for heating cold water using the heat of waste water from a shower.
  • This heat exchanger comprises a waste water collection tank, a heat exchange member arranged in the collection tank connected on the one hand to a cold water supply network, and on the other hand to means of supply of cold water to said device, the collection tank being segmented into a first zone receiving the wastewater and flowing into a second zone, the heat exchange member comprising at least a first section proximal to the network of cold water supply housed in the first zone of the tank, and a second section proximal to the water supply means housed in the second zone of the tank.
  • This heat exchanger when the device such as the shower is used, that the waste water collected and therefore still hot, is brought into contact with the second section of the heat exchange member to heat the cold water supplying the device, the second section of the heat exchange member bathed in the hot waste water from the first zone.
  • the still relatively hot wastewater flows from the first zone into the second zone.
  • the cold water from the cold water supply network first passes through the first section of the heat exchange member where it is initially heated. Then, it passes into the second section of the heat exchange organ where it heats up again.
  • this device makes it possible to efficiently heat the cold water supplied to the device using the heat coming from the waste water. This heated water can then be brought up to a mixer.
  • This teaching can be simply applied when replacing or renovating a shower, by replacing the tray with a new tray having the characteristics taught by the document FR3106878 .
  • Another objective of the invention is to propose a heat exchanger assembly comprising such an efficient heat exchanger device, allowing simple use by a user, and simplified cleaning and dismantling.
  • Another objective of the invention is to propose a shower comprising such heat exchanger device, or even such a heat exchanger assembly.
  • the invention relates to a heat exchanger device intended to heat cold water by means of the heat of waste water, in particular gray water, coming from an appliance, in particular a shower comprising a receiver having a water receiving surface.
  • waste water the device comprising a waste water collection tank and a heat exchange member arranged in the collection tank, the member comprising connection means, on the one hand to a cold water supply network, and on the other hand to a network for supplying water to the device, said device further comprising means for recovering waste water, characterized in that the waste water collection tank is configured to be installed on the receiving surface of the receiver and by the fact that these wastewater recovery means are configured to be installed on the receiving surface of the receiver and juxtaposed with the collection tank to which they return the wastewater.
  • This heat exchanger device can be added to an already existing device very simply by placing the collection tank and the recovery means on the wastewater receiving surface, which makes it possible to recover hot wastewater as soon as possible to extract more heat.
  • This device can be installed on a walk-in shower or any other type of shower quickly. This device being removable, it allows you to not be dependent on the obligations imposed on disability-approved shower type devices. This lightweight device can be moved to be put aside while a disabled person takes a shower.
  • the wastewater recovery means are in the form of at least one plate comprising channels allowing the flow of wastewater to the collection tank.
  • the plate channels allow waste water to be returned quickly and simply to the heat exchanger.
  • the waste water recovery means are in the form of at least two retractable plates sliding at least one into another, capable of being deployed to adapt to the shape of the receiver in which they are installed, and allow the flow of wastewater to the collection tank placed in said receiver.
  • the wastewater recovery means can thus be adjusted to the dimensions of the receiver to recover more wastewater.
  • the waste water recovery means comprise at least two plates of different dimensions and surfaces, capable of being installed to adapt to the shape of the receiver in which they are installed, and allow the flow of wastewater to the collection tank placed in said receiver.
  • the means of water recovery used can thus be adjusted to a large number of types of receivers.
  • At least one plate of the wastewater recovery means is made of a deformable material, elastically or plastically, to conform to the shape of the receiver in which it is installed, while continuing to allow the flow of wastewater to the collection tank placed in said receiver.
  • the wastewater recovery means can thus adjust to the geometry, in particular to the peripheral curvatures of the receiver in which it is placed.
  • At least one plate of the wastewater recovery means is made of a material capable of being cut to adapt to the shape of the receiver in which it is installed, while continuing to allow the flow wastewater to the collection tank placed in said receiver.
  • the collection tank includes additional wastewater recovery means.
  • the wastewater recovery means and the collection tank are configured to cover more than 15 to 25% of the receiving surface of the receiver.
  • the device is then compact and takes up little space in the receiver.
  • the wastewater recovery means and the collection tank are configured to cover more than 90% of the receiving surface of the receiver.
  • the invention also relates to a heat exchanger assembly intended to heat cold water by means of the heat of waste water, in particular gray water, coming from an apparatus comprising a receiver, in particular a shower, said assembly comprising a heat exchanger device having one or more of the characteristics of the heat exchanger device described above.
  • This assembly also includes a thermostatic mixer, comprising means of connection to a network for supplying cold water and hot water, and means of connection to a network for delivering thermostatically controlled water to said device.
  • This thermostatic mixer also includes, on the one hand, means for supplying cold water to the heat exchanger device and, on the other hand, means for connecting the water supply from the heat exchanger device to the device to a network.
  • the thermostatic mixer comprises means for regulating the different networks and water supplies, in particular by valves or taps.
  • the heat exchanger member is not under pressure if the mixer is in the closed position, which facilitates installation or maintenance.
  • the invention also relates to a device, particularly of the shower type, comprising a receiver, said receiver being equipped with a heat exchanger device comprising one or more of the characteristics of the heat exchanger device described above.
  • the invention also relates to a device, particularly of the shower type, comprising a receiver, said device being equipped with a heat exchanger assembly comprising one or more of the characteristics of the heat exchanger assembly described above.
  • the invention relates to a heat exchanger device 1.
  • This heat exchanger device can equip a device supplied with cold water and which uses hot water or cold water heating means.
  • This 1 heat exchanger device heats cold water using the heat of the water gray, here the waste water from the device.
  • the device is a shower comprising a receiver Re comprising a surface Su for receiving waste water from the device, for example under a thermostatically controlled water distributor of the shower head type.
  • the device 1 is placed on the receiving surface Su of the shower tray Re and is connected to the evacuation means of the tray Re.
  • the device, the receiver Re and the device 1 are considered in their position of use.
  • the figure 1 shows a device 1 installed on the receiving surface of the receiver Re, all seen from above.
  • the device 1 here comprises, essentially, a collection tank 2 making it possible to recover part of the waste water which flows from the device towards the receiver Re, and a heat exchange member 3.
  • the device 1 may include several heat exchange members, for example connected in parallel.
  • the heat exchange member 3 can be formed of a metal pipe, for example copper or corrugated stainless steel, having an incoming open end 30 and an outgoing open end 31.
  • the direction of circulation of the water in organ 3 on the figures 1 and 2 is shown schematically by arrows.
  • the collection bin 2 is here of substantially rectangular shape.
  • the collection tank 2 here comprises means for accumulating waste water that is still hot in the form of a crenellated wall 20 forming an overflow, surrounding an orifice Oe for evacuating waste water towards the means of evacuation of the receiver Re for example bung type.
  • the collection tank 2 fills with hot wastewater, and the excess wastewater is evacuated by overflowing through the evacuation port Oe into the evacuation means of the receiver Re.
  • the heat exchange member and the collection tank can have other configurations allowing heat to be extracted from the wastewater.
  • the collection bin 2 may have an open bottom and perforated side walls.
  • the reception surface Su of the waste water of the device can form a bottom of the collection tank 2.
  • This configuration is particularly advantageous in the case of a walk-in shower comprising a rectangular evacuation orifice Oe on the entire bottom of the shower.
  • the heat element 3 then soaks in the gray water, and the water then flows by gravity into the evacuation port.
  • This configuration is inexpensive and lightweight and prevents gray water from remaining in the collection tank and hindering the subsequent operation of the device once cooled.
  • the collection tank 2 comprises means of connection to a cold water supply network, for example in the form of a flexible welded or screwed to one end to a cold water supply source.
  • the other end of the flexible opens into the collection tank 2 and may include connection means such as a threaded ring making it possible to connect this end to the incoming end 30 of the heat exchange member 3, said end inlet 30 being equipped with a pierced nut with which the threaded ring cooperates by screwing.
  • the collection tank 2 also includes means of connection to a network for supplying cold water to the device to which the device is attached.
  • the cold water supply means can be in the form for example of another flexible welded or screwed at one end to a tube of the device allowing the supply of cold water to the device.
  • the other end of this other flexible opens into the collection tank 2 and may include connection means such as a threaded ring making it possible to connect this end to the outgoing end 31 of the heat exchange member 3, said outgoing end 31 being equipped with a pierced nut with which the threaded ring cooperates by screwing.
  • connection means described above may include a welding operation, or include so-called quick connectors commonly used in plumbing.
  • the heat exchange member 3 is here in the form of a metal pipe, for example made of copper or corrugated stainless steel, which extends from the incoming open end 30 in loops to end at the open end outgoing 31, as illustrated on the figure 2 or the figure 4 .
  • the loops of the pipe are carried by the same plane parallel to a main director plane of the device 1. It is of course also possible to provide two rows of loops stacked vertically and mounted in parallel so as to increase the quantity of heat transmitted.
  • the heat exchange member 3 is placed in the collection tank 2.
  • the collection tank 2 may include side openings 21, making it possible to connect waste water recovery means 4.
  • side openings 21 can be preformed in the side walls of the collection bin2. Shutters can be provided to block these side openings 21 if they are not all connected to waste water recovery means 4.
  • These side openings 21 can alternatively or complementarily be formed from a breakable side wall portion which has been removed, or from a side wall portion cut as required.
  • wastewater recovery means 4 are juxtaposed with the collection tank 2 to which they return the wastewater through these side openings.
  • These wastewater recovery means 4 can be installed on the surface of the receiver so that the heat exchanger device 1 covers a larger surface area of the receiver 1.
  • the device 1 can include a collection tank 21 and waste water recovery means 4 configured to cover 15 to 25% of the surface of the receiver, in order to allow the heat transfer of the waste water while limiting the bulk of device 1 on receiver Re.
  • the device 1 can include a collection tank and wastewater recovery means 4 configured to cover more than 90% of the surface of the receiver, in order to further improve the collection and recovery of hot wastewater.
  • the wastewater recovery means 4 can be formed of at least one plate 5 comprising channels 50 allowing the flow of wastewater to the collection tank 2. These channels 50 may have a bottom or not, in the latter case, the bottom of the channels 50 being formed by the reception surface Su of the receiver Re.
  • the at least one plate 5 of the waste water recovery means 4 may comprise an upper wall 51 comprising one or a plurality of holes, slots or openings 52 opening into the channels 50 of said at least one plate, capable of allowing the flow of the wastewater in channels 50, as shown in the figure 1 .
  • waste water recovery means 4 can be in the form of at least two retractable 5',5" plates sliding at least one into another, capable of being deployed to adapt to the shape of the receiver Re in which they are installed, and allow the flow of wastewater to the collection tank 2 placed in said receiver Re.
  • waste water recovery means 4 can comprise at least two plates 5 of different dimensions and surfaces, able to be installed to adapt to the shape of the receiver Re in which they are installed, and allow the flow of waste water up to the collection bin 2 placed in said receiver Re.
  • At least one plate 5 of the waste water recovery means 4 may be made of a deformable material, elastically or plastically, to conform to the shape of the receiver Re in which it is installed, while continuing to allow the flow of water used up to the collection tray 2 placed in said receiver Re.
  • the at least one plate 5 can be for example made of an injectable elastomeric thermoplastic such as for example a polymer based on ethylene-propylene-diene monomer, commonly called under the acronym EPDM.
  • At least one plate 5 of the waste water recovery means 4 can be made of a material capable of being cut to adapt to the shape of the receiver Re in which it is installed, while continuing to allow the flow of wastewater to the collection tank 2 placed in said receiver Re.
  • the at least one plate 5 can be for example made of an injectable elastomeric thermoplastic such as for example a polymer based on ethylene-propylene-diene monomer, commonly called by the acronym EPDM.
  • the collection tank 2 may include a removable upper shelf 22 to facilitate access to the collection tank 2 and cleaning or maintenance of the heat exchange member.
  • This removable upper shelf 22 may include additional wastewater recovery means in the form for example of a plurality of holes, slots or openings opening 220 into the collection tank 2, as illustrated in the figure 1 .
  • the heat exchanger device 1 can cover 15 to 25% of the receiving surface Su of the receiver Re, as illustrated in the figures 1 and 2 .
  • the heat exchanger device 1 can cover more than 90% of the receiving surface Su of the receiver Re, allowing almost total treatment of wastewater as soon as possible.
  • the heat exchanger device 1 (collection tray 2 and plates 5) may include grooves or grooves under its lower face, in order to allow waste water falling into the receiving surface Su of the receiver Re to be channeled and evacuated up to at the Oe wastewater discharge port of the receiver Re.
  • the wastewater recovery means 4 can also be formed of at least one rod 40 placed on the receiving surface Su of the receiver Re making it possible to guide the flow of wastewater to the collection tank 2.
  • the at least one rod 40 can be covered by at least one upper wall 41 comprising one or a plurality of holes, slots or openings, capable of allowing the flow of waste water up to the at least one rod and up to the collection tank 2
  • This at least one upper wall 41 advantageously allows a user to walk or park on said at least one upper wall.
  • the waste water recovery means 4 can also be formed by at least one element 40 comprising a rod 41 placed on the receiving surface Su of the receiver Re making it possible to guide the flow of waste water to the collection tank 2.
  • the at least one element may comprise at least one upper wall 42 comprising one or a plurality of holes, slots or openings, capable of allowing the flow of waste water up to the at least one rod and up to the collection tank 2
  • This at least one upper wall 42 advantageously allows a user to walk or park on said at least one upper wall 42 and on the collection bin 2.
  • the waste water recovery means 4 can also be simply formed by one or more side passages, through, in one or more side walls of the collection tank 2. These passages can be formed by the side openings 21 of the collection tank 2.
  • the upper wall 51 of the at least one plate 5 or of the at least upper wall 42 of the at least one element 10, and possibly the shelf 22 can form an inclined surface Si towards a distal end of the shower.
  • This inclined surface Si may include, as mentioned above, one or more holes, slots or lights 52, 220 passing through to let the wastewater flow into the receiver Re up to the collection tank 2.
  • the invention relates to a heat exchanger assembly.
  • This heat exchanger assembly can equip a device supplied with cold water and which uses hot water or cold water heating means intended to heat cold water by means of the heat of waste water, in particular gray water from of a device, here the shower mentioned above.
  • This assembly comprises a heat exchanger device 1 as described above.
  • thermostatic mixer designates a member for regulating the outlet temperature of a liquid from said member by an action on incoming flow rates of liquids at different temperatures, capable of delivering a liquid leaving at a desired temperature.
  • This regulating body may include one or more thermostatic valves.
  • This thermostatic mixer comprises, in a known manner, means for selecting the opening/closing/outlet flow and means for selecting the outlet temperature of the water to the device, here in the form of respectively right side and side levers. left, as shown in the Figure 3 .
  • This thermostatic mixer comprises in a known manner means of connection to a cold water supply network 60, means of connection to a hot water supply network 61, for example in the form of flexibles welded or screwed at one end to a supply source of cold water and hot water respectively, and at the other end connected to said thermostatic mixer 6.
  • This thermostatic mixer 6 also comprises, in a known manner, means of connection 62 to a network for delivering thermostatically controlled water to said device, for example to more particularly a apple of water. shower not shown here.
  • This thermostatic mixer 6 further comprises means for supplying cold water to the heat exchanger device 63, for example in the form of flexibles welded or screwed to one end of the thermostatic mixer 6 and more particularly to the cold water inlet , and at another end, connected to the heat exchanger device, more particularly to the incoming end 30 of the heat exchange member 3.
  • This thermostatic mixer 6 also has means of connection to a network of the water supply 64 of the heat exchanger device 1, for example in the form of flexibles welded or screwed at one end to the heat exchanger device, more particularly at the outgoing end 30 of the heat exchange member 3, and at another end, connected to the thermostatic mixer 6.
  • the thermostatic mixer 6 can thus use hot water from the hot water network and water from the heat exchanger device to deliver thermostatically controlled water to the device.
  • the cold water supplying the heat exchanger member 3 passes through the thermostatic mixer 6, which makes it possible to cut off the cold water supply at said mixer to prevent overpressure of the networks of the device 1 when it is not used. It can then be envisaged to use quick connectors to connect the device 1 to the thermostatic mixer 6, these connectors being configured to also allow the cold water supply means of the heat exchanger device 63 to be connected to the means of connection to a water supply network 64. Thus, it is possible to simply, quickly and temporarily remove the device 1 and to be able to continue to use the shower, then to reconnect the device just as simply and quickly.
  • the thermostatic mixer 6 may include means of regulating the various networks and water supplies, in particular by valves or taps.
  • the invention also relates to an apparatus comprising a receiver Re, in particular a shower, comprising a heat exchanger device 1 as described above.
  • the invention also relates to an apparatus comprising a receiver Re, in particular a shower, comprising a heat exchanger system as described above.

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Abstract

Dispositif (1) échangeur de chaleur entre des eaux usées et de l'eau froide d'un appareil comportant un receveur (Re) présentant une surface de réception (Su) des eaux usées, notamment une douche, le dispositif (1) comportant un bac de collecte (2) des eaux usées et un organe (3) d'échange de chaleur disposé dans le bac de collecte (2) connecté à un réseau d'alimentation en eau froide, et à un réseau d'apport d'eau vers l'appareil, ledit dispositif (1) comportant des moyens de récupération (4) des eaux usées juxtaposés sur la surface de réception (Su) du receveur (Re) au bac de collecte (2).Appareil notamment de type douche, comportant un receveur (Re), ledit receveur (Re) étant équipé d'un tel dispositif (1).Ensemble comportant un tel dispositif (1) et un mitigeur thermostatique (6).Appareil notamment de type douche, comportant un receveur (Re), ledit appareil étant équipé d'un tel ensemble.Device (1) heat exchanger between waste water and cold water of an apparatus comprising a receiver (Re) having a surface for receiving waste water (Su), in particular a shower, the device (1) comprising a collection tank (2) for waste water and a heat exchange member (3) arranged in the collection tank (2) connected to a cold water supply network, and to a water supply network towards the device, said device (1) comprising waste water recovery means (4) juxtaposed on the receiving surface (Su) of the receiver (Re) to the collection tank (2).Appliance in particular of the shower type, comprising a receiver (Re), said receiver (Re) being equipped with such a device (1). Assembly comprising such a device (1) and a thermostatic mixer (6). Apparatus in particular of the shower type, comprising a receiver (Re) , said device being equipped with such an assembly.

Description

Le domaine technique concerne celui des échangeurs de chaleur entre deux fluides, notamment deux liquides.The technical field concerns that of heat exchangers between two fluids, in particular two liquids.

Le domaine technique concerne plus particulièrement celui des échangeurs thermiques à usage domestique pour la récupération de la chaleur contenue dans les eaux usées, et encore plus particulièrement les eaux grises.The technical field concerns more particularly that of heat exchangers for domestic use for the recovery of heat contained in wastewater, and even more particularly gray water.

Mais le domaine technique peut également concerner celui des échangeurs thermiques à usage industriel pour la récupération de la chaleur contenue dans les eaux usées peu sales, notamment des eaux de lavage ou de rinçage.But the technical field can also concern that of heat exchangers for industrial use for the recovery of heat contained in slightly dirty wastewater, in particular washing or rinsing water.

Par eaux grises on désigne les eaux ménagères, c'est-à-dire communément des eaux usées qui proviennent d'usage domestique, tel que le lavage des ustensiles et des vêtements, ainsi que la toilette des personnes. Selon la norme NF EN 16323 de mai 2014, les eaux grises sont les eaux résiduaires domestiques à l'exclusion des eaux de toilettes et d'urinoirs. Elles incluent les eaux de salles de bain (douches, baignoires, lavabos), de lave-linge et celles provenant de la cuisine (éviers, lave-vaisselle).By gray water we mean household water, that is to say commonly wastewater which comes from domestic use, such as the washing of utensils and clothes, as well as the washing of people. According to the NF EN 16323 standard of May 2014, gray water is domestic waste water excluding toilet and urinal water. They include water from bathrooms (showers, bathtubs, sinks), washing machines and water from the kitchen (sinks, dishwashers).

Ces eaux grises sont de manière connue peu sales, elles contiennent des particules ou des produits chimiques tels que tensio-actifs, des déchets alimentaires, des peaux mortes, des cheveux, etc...This gray water is known to be not very dirty, it contains particles or chemicals such as surfactants, food waste, dead skin, hair, etc.

Il est connu de recycler ces eaux grises pour avoir un impact écologique plus faible. Cela est vrai dans le cas d'un bâtiment d'habitation, ou d'un bâtiment industriel, mais aussi pour bâtiments tertiaire à usage notamment d'hôtellerie, établissement sportif, santé, restauration, salon de coiffure, piscine, voire sur des terrains de camping comportant des blocs sanitaires collectifs.It is known to recycle this gray water to have a lower ecological impact. This is true in the case of a residential building, or an industrial building, but also for tertiary buildings used in particular for hotels, sports establishments, health, catering, hairdressing salons, swimming pools, or even on land. campsite with collective toilet blocks.

Dans la même logique de réduction de l'impact écologique, il est connu d'équiper les moyens de collecte et/ou d'évacuation des eaux grises d'un dispositif de récupération de chaleur. En effet, ces eaux grises peuvent encore être chaudes. En contrepartie, les eaux propres issues d'un réseau d'alimentation doivent être chauffées à la température désirée, qui est proche de la température des eaux grises.In the same logic of reducing the ecological impact, it is known to equip the means of collection and/or evacuation of gray water with a heat recovery device. Indeed, this gray water can still be warm. In return, clean water from a supply network must be heated to the desired temperature, which is close to the temperature of gray water.

Dans le cas d'une utilisation de l'eau sur une durée relativement longue, c'est-à-dire plusieurs minutes, plusieurs dizaines de minutes ou plus, il en découle une perte d'énergie calorifique importante.In the case of using water over a relatively long period of time, that is to say several minutes, several tens of minutes or more, this results in a significant loss of heat energy.

C'est notamment vrai dans le cas des douches, mais c'est vrai aussi pour les lave-vaisselles, ou lors d'opération de lavage en continu dans l'industrie.This is particularly true in the case of showers, but it is also true for dishwashers, or during continuous washing operations in industry.

La récupération de chaleur dans l'industrie se fait de manière connue par des dispositifs de transfert de chaleur de grande taille, encombrants, lourds.Heat recovery in industry is done in a known manner by large, bulky, heavy heat transfer devices.

La transposition de ces dispositifs de récupération de chaleur à un appareil plus compact, une douche par exemple, se heurte à plusieurs problèmes.The transposition of these heat recovery devices to a more compact device, a shower for example, encounters several problems.

Un tel dispositif industriel présente un encombrement et des dimensions importants. Or, il y a peu d'espace libre dans une douche ou à proximité.Such an industrial device has a large footprint and dimensions. However, there is little free space in or near a shower.

Un tel dispositif industriel présente un rendement intéressant pour une utilisation continue. Or, une douche ne prend que quelques minutes. Le dispositif doit être adapté pour transférer au plus tôt des calories et la plus grande quantité possible sur une durée courte.Such an industrial device has an interesting performance for continuous use. However, a shower only takes a few minutes. The device must be adapted to transfer calories as early as possible and as large a quantity as possible over a short period of time.

Un tel dispositif industriel comporte des moyens de filtration et de maintenance. Or, dans le cadre d'une douche, il est déjà difficile de trouver un espace pour y placer le dispositif, la nécessité d'aménager une trappe ou un regard d'accès rend plus ardue l'intégration dudit dispositif. Cet accès est d'autant plus important que l'échange thermique nécessite une surface d'échange la plus large possible, et que tout résidus ou film sur la surface d'échange obère le rendement du dispositif. Il est donc important de pouvoir nettoyer ou effectuer une maintenance régulière de l'intérieur du dispositif.Such an industrial device includes filtration and maintenance means. However, in the context of a shower, it is already difficult to find a space to place the device, the need to fit a hatch or an access hole makes the integration of said device more difficult. This access is all the more important as the heat exchange requires the largest possible exchange surface, and any residue or film on the exchange surface impairs the performance of the device. It is therefore important to be able to clean or carry out regular maintenance on the inside of the device.

L'implantation d'un tel dispositif industriel peut être prévue dès la conception de l'usine où il va être implanté, avec la réservation d'un emplacement dédié. Or, dans le cadre d'une douche, les dimensions du receveur, de la cabine et des réseaux d'alimentation et d'évacuation sont prédéterminées par l'habitude de construction et quasiment imposées. C'est d'autant plus le cas dans le cadre d'une rénovation, d'une salle de bain par exemple.The implementation of such an industrial device can be planned from the design of the factory where it will be installed, with the reservation of a dedicated location. However, in the context of a shower, the dimensions of the shower tray, the cabin and the supply and drainage networks are predetermined by construction habits and almost imposed. This is all the more the case in the context of a renovation, of a bathroom for example.

Pour remédier à ces problèmes, il est connu des dispositifs de transfert de chaleur entre des eaux usées et une eau alimentée par un réseau d'alimentation installés au niveau du receveur.To remedy these problems, heat transfer devices between wastewater and water supplied by a supply network installed at the level of the receiver are known.

Le document FR3106878 enseigne un échangeur de chaleur destiné à chauffer de l'eau froide au moyen de la chaleur de l'eau usée d'une douche. Cet échangeur de chaleur comporte un bac de collecte des eaux usées, un organe d'échange de chaleur disposé dans le bac de collecte relié d'une part à un réseau d'alimentation en eau froide, et d'autre part à des moyens d'apport d'eau froide audit appareil, le bac de collecte étant segmenté en une première zone recevant les eaux usées et se déversant dans une deuxième zone, l'organe d'échange de chaleur comportant au moins une première section proximale au réseau d'alimentation en eau froide logée dans la première zone du bac, et une deuxième section proximale aux moyens d'apport d'eau logée dans la deuxième zone du bac.The document FR3106878 teaches a heat exchanger for heating cold water using the heat of waste water from a shower. This heat exchanger comprises a waste water collection tank, a heat exchange member arranged in the collection tank connected on the one hand to a cold water supply network, and on the other hand to means of supply of cold water to said device, the collection tank being segmented into a first zone receiving the wastewater and flowing into a second zone, the heat exchange member comprising at least a first section proximal to the network of cold water supply housed in the first zone of the tank, and a second section proximal to the water supply means housed in the second zone of the tank.

Cet échangeur de chaleur, lorsque l'appareil tel que la douche est utilisé, que les eaux usées collectées et donc encore chaudes, soient mises en contact avec la deuxième section de l'organe d'échange de chaleur pour réchauffer l'eau froide alimentant l'appareil, la deuxième section de l'organe d'échange de chaleur baignant dans les eaux usées chaudes de la première zone. Une fois une grande partie de la chaleur transmise, les eaux usées encore relativement chaudes se déversent depuis la première zone dans la deuxième zone. De cette manière, l'eau froide issue du réseau d'alimentation en eau froide traverse d'abord la première section de l'organe d'échange de chaleur où elle se réchauffe dans un premier temps. Puis, elle passe dans la deuxième section de l'organe d'échange de chaleur où elle se réchauffe encore. Le fait d'avoir plusieurs zones successives permet d'augmenter le temps de contact entre les eaux usées et l'organe d'échange de chaleur, pour améliorer le rendement sur un temps réduit.This heat exchanger, when the device such as the shower is used, that the waste water collected and therefore still hot, is brought into contact with the second section of the heat exchange member to heat the cold water supplying the device, the second section of the heat exchange member bathed in the hot waste water from the first zone. Once a Much of the heat transmitted, the still relatively hot wastewater flows from the first zone into the second zone. In this way, the cold water from the cold water supply network first passes through the first section of the heat exchange member where it is initially heated. Then, it passes into the second section of the heat exchange organ where it heats up again. The fact of having several successive zones makes it possible to increase the contact time between the wastewater and the heat exchange member, to improve efficiency over a reduced time.

Ainsi, ce dispositif permet de réchauffer de manière efficace l'eau froide amenée à l'appareil grâce à la chaleur provenant des eaux usées. Cette eau réchauffée peut ensuite être remontée jusqu'à un mitigeur.Thus, this device makes it possible to efficiently heat the cold water supplied to the device using the heat coming from the waste water. This heated water can then be brought up to a mixer.

Il est ainsi possible de réduire l'utilisation de l'eau chaude lors de l'utilisation de l'appareil, notamment une douche.It is thus possible to reduce the use of hot water when using the device, in particular a shower.

Cet enseignement peut être appliqué simplement lors du remplacement ou la rénovation d'une douche, en remplaçant le receveur par un nouveau receveur comportant les caractéristiques enseignées par le document FR3106878 .This teaching can be simply applied when replacing or renovating a shower, by replacing the tray with a new tray having the characteristics taught by the document FR3106878 .

Cependant, il n'est pas simplement applicable dans le cas de douches à l'italienne, et plus particulièrement pour les douches agréé handicap. En effet, pour obtenir un agrément handicap, le receveur ne doit dorénavant pas comporter de ressaut.However, it is not simply applicable in the case of walk-in showers, and more particularly for handicap-approved showers. Indeed, to obtain handicap approval, the receiver must now not have a projection.

De plus, le remplacement d'un receveur est couteux, et le nettoyage de l'ensemble, bien que facilité, nécessite de nombreuses manipulations.In addition, replacing a tray is expensive, and cleaning the whole thing, although easier, requires numerous manipulations.

En outre, le démontage de l'échangeur reste complexe du fait de son branchement à l'arrivée d'eau froide de l'ensemble. Il est donc nécessaire de prévoir des vannes antérieurement sur le réseau d'alimentation en eau froide, et des moyens d'accès audites vannes.In addition, dismantling the exchanger remains complex due to its connection to the assembly's cold water inlet. It is therefore necessary to provide valves previously on the cold water supply network, and means of access to said valves.

C'est donc un objectif de l'invention que de proposer un dispositif échangeur de chaleur qui soit performant, facile, rapide et économique à installer et à adapter dans un receveur de douche neuf ou déjà existant, même dans un receveur de douche de type douche à l'italienne. Un autre objectif de l'invention est de proposer un dispositif échangeur de chaleur amovible, pouvant être déplacé et remis rapidement.It is therefore an objective of the invention to propose a heat exchanger device which is efficient, easy, quick and economical to install and adapt in a new or existing shower tray, even in a shower tray of the type Italian shower. Another objective of the invention is to provide a removable heat exchanger device, which can be moved and replaced quickly.

Un autre objectif de l'invention est de proposer un ensemble échangeur de chaleur et comportant un tel dispositif échangeur de chaleur performant, permettant une utilisation simple par un utilisateur, et un nettoyage et un démontage simplifié.Another objective of the invention is to propose a heat exchanger assembly comprising such an efficient heat exchanger device, allowing simple use by a user, and simplified cleaning and dismantling.

C'est un autre objectif de l'invention de proposer un dispositif ou un ensemble permettant d'assurer une récupération de chaleur importante, supérieure à 35%, et répondant aux exigences au projet de norme NF EN ISO/IEX 17025.It is another objective of the invention to propose a device or an assembly making it possible to ensure significant heat recovery, greater than 35%, and meeting the requirements of the draft standard NF EN ISO/IEX 17025.

Un autre objectif de l'invention est de proposer une douche comportant un tel dispositif échangeur de chaleur, voire un tel ensemble échangeur de chaleur.Another objective of the invention is to propose a shower comprising such heat exchanger device, or even such a heat exchanger assembly.

A cet effet l'invention concerne un dispositif échangeur de chaleur destiné à chauffer de l'eau froide au moyen de la chaleur des eaux usées notamment grises issues d'un appareil, notamment une douche comportant un receveur présentant une surface de réception d'eaux usées, le dispositif comportant un bac de collecte des eaux usées et un organe d'échange de chaleur disposé dans le bac de collecte, l'organe comportant des moyens de connexion, d'une part à un réseau d'alimentation en eau froide, et d'autre part à un réseau d'apport d'eau vers l'appareil, ledit dispositif comportant en outre des moyens de récupération des eaux usées, caractérisé par le fait que le bac de collecte des eaux usées est configuré pour être installé sur la surface de réception du receveur et par le fait que ces moyens de récupération des eaux usées sont configurés pour être installés sur la surface de réception du receveur et juxtaposés au bac de collecte vers lequel ils renvoient les eaux usées.For this purpose the invention relates to a heat exchanger device intended to heat cold water by means of the heat of waste water, in particular gray water, coming from an appliance, in particular a shower comprising a receiver having a water receiving surface. waste water, the device comprising a waste water collection tank and a heat exchange member arranged in the collection tank, the member comprising connection means, on the one hand to a cold water supply network, and on the other hand to a network for supplying water to the device, said device further comprising means for recovering waste water, characterized in that the waste water collection tank is configured to be installed on the receiving surface of the receiver and by the fact that these wastewater recovery means are configured to be installed on the receiving surface of the receiver and juxtaposed with the collection tank to which they return the wastewater.

Ce dispositif échangeur de chaleur peut être rajouté à un appareil déjà existant très simplement en plaçant le bac de collecte et les moyens de récupération sur la surface de réception d'eaux usées, ce qui permet de récupérer une eau usée chaude au plus tôt pour extraire plus de chaleur. Ce dispositif peut être installé sur une douche à l'italienne ou tout autre type de douche rapidement. Ce dispositif étant amovible, il permet de ne pas être tributaire des obligations imposées aux appareils de type douche agréé handicap. Ce dispositif léger peut notamment être déplacé pour être mis de côté le temps qu'une personne handicapée prenne une doucheThis heat exchanger device can be added to an already existing device very simply by placing the collection tank and the recovery means on the wastewater receiving surface, which makes it possible to recover hot wastewater as soon as possible to extract more heat. This device can be installed on a walk-in shower or any other type of shower quickly. This device being removable, it allows you to not be dependent on the obligations imposed on disability-approved shower type devices. This lightweight device can be moved to be put aside while a disabled person takes a shower.

Selon une caractéristique de l'invention, les moyens de récupération des eaux usées se présentent sous la forme d'au moins une plaque comportant des canaux permettant l'écoulement des eaux usées jusqu'au bac de collecte.According to one characteristic of the invention, the wastewater recovery means are in the form of at least one plate comprising channels allowing the flow of wastewater to the collection tank.

Les canaux des plaques permettent de renvoyer les eaux usées rapidement et simplement vers l'organe échangeur de chaleur.The plate channels allow waste water to be returned quickly and simply to the heat exchanger.

Selon une caractéristique de l'invention, les moyens de récupération des eaux usées se présentent sous la forme d'au moins deux plaques escamotables et coulissant au moins une dans une autre, aptes à être déployées pour s'adapter à la forme du receveur dans lequel elles sont installées, et permettre l'écoulement des eaux usées jusqu'au bac de collecte placé dans ledit receveur.According to one characteristic of the invention, the waste water recovery means are in the form of at least two retractable plates sliding at least one into another, capable of being deployed to adapt to the shape of the receiver in which they are installed, and allow the flow of wastewater to the collection tank placed in said receiver.

Les moyens de récupération des eaux usées peuvent ainsi s'ajuster aux dimensions du receveur pour récupérer plus d'eaux usées.The wastewater recovery means can thus be adjusted to the dimensions of the receiver to recover more wastewater.

Selon une caractéristique de l'invention, les moyens de récupération des eaux usées comportent aux moins deux plaques de dimensions et de surfaces différentes, aptes à être installées pour s'adapter à la forme du receveur dans lequel elles sont installées, et permettre l'écoulement des eaux usées jusqu'au bac de collecte placé dans ledit receveur.According to one characteristic of the invention, the waste water recovery means comprise at least two plates of different dimensions and surfaces, capable of being installed to adapt to the shape of the receiver in which they are installed, and allow the flow of wastewater to the collection tank placed in said receiver.

En combinant les plaques entre elles, les moyens de récupération des eaux usées peuvent ainsi s'ajuster à un grand nombre de types de receveurs.By combining the plates together, the means of water recovery used can thus be adjusted to a large number of types of receivers.

Selon une caractéristique de l'invention, au moins une plaque des moyens de récupération des eaux usées est en un matériau déformable, élastiquement ou plastiquement, pour se conformer à la forme du receveur dans lequel elle est installée, tout en continuant de permettre l'écoulement des eaux usées jusqu'au bac de collecte placé dans ledit receveur.According to one characteristic of the invention, at least one plate of the wastewater recovery means is made of a deformable material, elastically or plastically, to conform to the shape of the receiver in which it is installed, while continuing to allow the flow of wastewater to the collection tank placed in said receiver.

Les moyens de récupération des eaux usées peuvent ainsi s'ajuster à la géométrie, notamment aux courbures périphériques du receveur dans lequel il est placée.The wastewater recovery means can thus adjust to the geometry, in particular to the peripheral curvatures of the receiver in which it is placed.

Selon une caractéristique de l'invention, au moins une plaque des moyens de récupération des eaux usées est en un matériau apte à être découpé pour s'adapter à la forme du receveur dans lequel il est installé, tout en continuant de permettre l'écoulement des eaux usées jusqu'au bac de collecte placé dans ledit receveur.According to one characteristic of the invention, at least one plate of the wastewater recovery means is made of a material capable of being cut to adapt to the shape of the receiver in which it is installed, while continuing to allow the flow wastewater to the collection tank placed in said receiver.

Selon une caractéristique de l'invention, le bac de collecte comporte des moyens de récupération complémentaires des eaux usées.According to one characteristic of the invention, the collection tank includes additional wastewater recovery means.

Il est ainsi plus simple de récupérer les eaux usées qui tombent sur le bac de collecte.This makes it easier to recover the wastewater that falls into the collection tank.

Selon une caractéristique de l'invention, les moyens de récupération des eaux usées et le bac de collecte sont configurés pour recouvrir plus de 15 à 25% de la surface de réception du receveur.According to one characteristic of the invention, the wastewater recovery means and the collection tank are configured to cover more than 15 to 25% of the receiving surface of the receiver.

Le dispositif est alors compact et peu encombrant dans le receveur..The device is then compact and takes up little space in the receiver.

Selon une caractéristique de l'invention, les moyens de récupération des eaux usées et le bac de collecte sont configurés pour recouvrir plus de 90% de la surface de réception du receveur.According to one characteristic of the invention, the wastewater recovery means and the collection tank are configured to cover more than 90% of the receiving surface of the receiver.

Par la combinaison des plaques, et éventuellement leur découpe ou leur conformation, il est alors possible de recouvrir quasiment toute la surface de réception des eaux usées du receveur, ce qui améliore les performances de récupération de chaleur issue de l'eau usée.By combining the plates, and possibly cutting or shaping them, it is then possible to cover almost the entire wastewater reception surface of the receiver, which improves the heat recovery performance from the wastewater.

L'invention concerne également un ensemble échangeur de chaleur destiné à chauffer de l'eau froide au moyen de la chaleur des eaux usées notamment grises issues d'un appareil comportant un receveur, notamment une douche, ledit ensemble comportant un dispositif échangeur de chaleur présentant une ou plusieurs des caractéristiques du dispositif échangeur de chaleur décrit ci-avant. Cet ensemble comporte également un mitigeur thermostatique, comportant des moyens de branchement à un réseau d'apport en eau froide et en eau chaude, et des moyens de branchement à un réseau de délivrance d'une eau thermostatée vers ledit appareil. Ce mitigeur thermostatique comporte également d'une part des moyens d'alimentation en eau froide du dispositif échangeur de chaleur et d'autre part des moyens de connexion à un réseau de l'apport d'eau du dispositif échangeur de chaleur vers l'appareil. The invention also relates to a heat exchanger assembly intended to heat cold water by means of the heat of waste water, in particular gray water, coming from an apparatus comprising a receiver, in particular a shower, said assembly comprising a heat exchanger device having one or more of the characteristics of the heat exchanger device described above. This assembly also includes a thermostatic mixer, comprising means of connection to a network for supplying cold water and hot water, and means of connection to a network for delivering thermostatically controlled water to said device. This thermostatic mixer also includes, on the one hand, means for supplying cold water to the heat exchanger device and, on the other hand, means for connecting the water supply from the heat exchanger device to the device to a network. .

Ainsi, en actionnant l'ouverture de l'eau au niveau du mitigeur, un utilisateur met en marche le dispositif échangeur de chaleur sans changer ses mouvements habituels.Thus, by activating the water opening at the level of the mixer, a user turns on the heat exchanger device without changing his usual movements.

Selon une caractéristique de l'invention, le mitigeur thermostatique comporte des moyens de régulation des différents réseaux et des apports d'eau, notamment par des vannes ou des robinets. According to one characteristic of the invention, the thermostatic mixer comprises means for regulating the different networks and water supplies, in particular by valves or taps.

Ainsi, lors du montage ou du démontage du dispositif échangeur de chaleur, l'organe échangeur de chaleur n'est pas sous pression si le mitigeur est en position fermée, ce qui facilite l'installation ou la maintenance.Thus, during assembly or disassembly of the heat exchanger device, the heat exchanger member is not under pressure if the mixer is in the closed position, which facilitates installation or maintenance.

L'invention concerne également un appareil notamment de type douche, comportant un receveur, ledit receveur étant équipé d'un dispositif échangeur de chaleur comportant une ou plusieurs des caractéristiques du dispositif échangeur de chaleur décrit ci-avant. The invention also relates to a device, particularly of the shower type, comprising a receiver, said receiver being equipped with a heat exchanger device comprising one or more of the characteristics of the heat exchanger device described above.

L'invention concerne également un appareil notamment de type douche, comportant un receveur, ledit appareil étant équipé d'un ensemble échangeur de chaleur comportant une ou plusieurs des caractéristiques de l'ensemble échangeur de chaleur décrit ci-avant. The invention also relates to a device, particularly of the shower type, comprising a receiver, said device being equipped with a heat exchanger assembly comprising one or more of the characteristics of the heat exchanger assembly described above.

D'autre buts et avantages de la présente invention apparaîtront au cours de la description qui va suivre se référant aux dessins ci-joints illustrant des exemples de réalisation et dans lesquels :

  • [Fig 1] est une vue schématique de dessus d'un dispositif échangeur de chaleur selon un premier mode de réalisation selon l'invention, posé sur un receveur ici de douche.
  • [Fig 2] est une vue schématique en coupe horizontale du dispositif échangeur de chaleur de la figure 1.
  • [Fig 3] est une vue schématique d'un mitigeur thermostatique d'un ensemble échangeur de chaleur selon l'invention, ledit ensemble comportant en outre un dispositif échangeur de chaleur.
  • [Fig 4] est une vue schématique de dessus d'un autre mode de réalisation d'un dispositif échangeur de chaleur selon l'invention, posé sur un receveur ici de douche de type douche à l'italienne.
  • [Fig 5] est une vue schématique en coupe du dispositif échangeur de chaleur de la figure 4.
  • [Fig 6] est une vue schématique de côté d'encore un autre mode de réalisation d'un dispositif échangeur de chaleur selon l'invention, posé sur un receveur ici de douche de type douche à l'italienne.
Other aims and advantages of the present invention will become apparent during the description which follows, referring to the attached drawings illustrating exemplary embodiments and in which:
  • [ Figure 1 ] is a schematic top view of a heat exchanger device according to a first embodiment according to the invention, placed on a shower tray here.
  • [ Figure 2 ] is a schematic view in horizontal section of the heat exchanger device of the figure 1 .
  • [ Figure 3 ] is a schematic view of a thermostatic mixer of a heat exchanger assembly according to the invention, said assembly further comprising a heat exchanger device.
  • [ Figure 4 ] is a schematic top view of another embodiment of a heat exchanger device according to the invention, placed on a shower tray here of the Italian shower type.
  • [ Figure 5 ] is a schematic sectional view of the heat exchanger device of the figure 4 .
  • [ Figure 6 ] is a schematic side view of yet another embodiment of a heat exchanger device according to the invention, placed on a shower tray here of the Italian shower type.

L'invention a trait à un dispositif 1 échangeur de chaleur. Ce dispositif 1 échangeur de chaleur peut équiper un appareil alimenté en eau froide et qui utilise de l'eau chaude ou des moyens de chauffage de l'eau froide. Ce dispositif 1 échangeur de chaleur chauffe l'eau froide au moyen de la chaleur des eaux grises, ici les eaux usées issues de l'appareil. Dans l'exemple décrit ici, l'appareil est une douche comportant un receveur Re comportant une surface de réception Su des eaux usées de l'appareil, par exemple sous un distributeur d'eau thermostaté de type pomme de douche. Le dispositif 1 est placé sur la surface de réception Su du receveur Re de la douche et est connecté aux moyens d'évacuation du receveur Re.The invention relates to a heat exchanger device 1. This heat exchanger device can equip a device supplied with cold water and which uses hot water or cold water heating means. This 1 heat exchanger device heats cold water using the heat of the water gray, here the waste water from the device. In the example described here, the device is a shower comprising a receiver Re comprising a surface Su for receiving waste water from the device, for example under a thermostatically controlled water distributor of the shower head type. The device 1 is placed on the receiving surface Su of the shower tray Re and is connected to the evacuation means of the tray Re.

L'appareil, le receveur Re et le dispositif 1 sont considérés dans leur position d'utilisation. Ainsi, la figure 1 montre un dispositif 1 installé sur la surface de réception du receveur Re, le tout vu de dessus.The device, the receiver Re and the device 1 are considered in their position of use. Thus, the figure 1 shows a device 1 installed on the receiving surface of the receiver Re, all seen from above.

Le dispositif 1 ici comporte, de manière essentielle, un bac de collecte 2 permettant de récupérer une partie des eaux usées qui coulent de l'appareil vers le receveur Re, et un organe d'échange de chaleur 3. Bien sûr, le dispositif 1 peut comporter plusieurs organes d'échange de chaleur, par exemple branchés en parallèle.The device 1 here comprises, essentially, a collection tank 2 making it possible to recover part of the waste water which flows from the device towards the receiver Re, and a heat exchange member 3. Of course, the device 1 may include several heat exchange members, for example connected in parallel.

L'organe d'échange de chaleur 3 peut être formé d'un tuyau en métal, par exemple en cuivre ou en inox annelé, présentant une extrémité ouverte entrante 30 et une extrémité ouverte sortante 31. Le sens de circulation de l'eau dans l'organe 3 sur la figure 1 et 2 est schématisé par des flèches.The heat exchange member 3 can be formed of a metal pipe, for example copper or corrugated stainless steel, having an incoming open end 30 and an outgoing open end 31. The direction of circulation of the water in organ 3 on the figures 1 and 2 is shown schematically by arrows.

Le bac de collecte 2 est ici de forme sensiblement rectangulaire. Le bac de collecte 2 comporte ici des moyens d'accumulation des eaux usées encore chaudes sous la forme d'un muret crénelé 20 formant déversoir, entourant un orifice Oe d'évacuation des eaux usées vers les moyens d'évacuation du receveur Re par exemple de type bonde.The collection bin 2 is here of substantially rectangular shape. The collection tank 2 here comprises means for accumulating waste water that is still hot in the form of a crenellated wall 20 forming an overflow, surrounding an orifice Oe for evacuating waste water towards the means of evacuation of the receiver Re for example bung type.

Ainsi, le bac de collecte 2 se remplit des eaux usées chaudes, et le trop plein des eaux usées s'évacue par débordement par l'orifice d'évacuation Oe dans les moyens d'évacuation du receveur Re.Thus, the collection tank 2 fills with hot wastewater, and the excess wastewater is evacuated by overflowing through the evacuation port Oe into the evacuation means of the receiver Re.

Bien entendu, l'organe d'échange de chaleur et le bac de collecte peuvent présenter d'autres configurations permettant une extraction de la chaleur des eaux usées.Of course, the heat exchange member and the collection tank can have other configurations allowing heat to be extracted from the wastewater.

Ainsi, comme illustré sur la figure 4 et 5, le bac de collecte 2 peut comporter un fond ouvert et des parois latérales ajourées. Ainsi, la surface de réception Su des eaux usées de l'appareil peut venir former un fond de bac de collecte 2. Cette configuration est particulièrement avantageuse dans le cas d'une douche à l'italienne comportant un orifice d'évacuation Oe rectangulaire sur tout le fond de la douche. L'organe de chaleur 3 trempe alors dans les eaux grises, et les eaux s'écoulent ensuite par gravité dans l'orifice d'évacuation. Cette configuration est peu coûteuse et légère et permet d'éviter que des eaux grises restent dans le bac de collecte et obèrent le fonctionnement ultérieur du dispositif une fois refroidies.Thus, as illustrated in the figure 4 And 5 , the collection bin 2 may have an open bottom and perforated side walls. Thus, the reception surface Su of the waste water of the device can form a bottom of the collection tank 2. This configuration is particularly advantageous in the case of a walk-in shower comprising a rectangular evacuation orifice Oe on the entire bottom of the shower. The heat element 3 then soaks in the gray water, and the water then flows by gravity into the evacuation port. This configuration is inexpensive and lightweight and prevents gray water from remaining in the collection tank and hindering the subsequent operation of the device once cooled.

Le bac de collecte 2 comporte des moyens de connexion à un réseau d'alimentation en eau froide, sous la forme par exemple d'un flexible soudé ou vissé à une extrémité à une source d'alimentation en eau froide. L'autre extrémité du flexible débouche dans le bac de collecte 2 et peut comporter les moyens de connexion tels qu'une bague filetée permettant de connecter cette extrémité à l'extrémité entrante 30 de l'organe d'échange de chaleur 3, ladite extrémité entrante 30 étant équipée d'un écrou percé avec lequel la bague filetée coopère par vissage.The collection tank 2 comprises means of connection to a cold water supply network, for example in the form of a flexible welded or screwed to one end to a cold water supply source. The other end of the flexible opens into the collection tank 2 and may include connection means such as a threaded ring making it possible to connect this end to the incoming end 30 of the heat exchange member 3, said end inlet 30 being equipped with a pierced nut with which the threaded ring cooperates by screwing.

Le bac de collecte 2 comporte aussi des moyens de connexion à un réseau d'apport d'eau froide à l'appareil auquel le dispositif est rattaché. Les moyens d'apport d'eau froide peuvent être sous la forme par exemple d'un autre flexible soudé ou vissé à une extrémité à un tube de l'appareil permettant l'alimentation de l'appareil en eau froide. L'autre extrémité de cet autre flexible débouche dans le bac de collecte 2 et peut comporter les moyens de connexion tels qu'une bague filetée permettant de connecter cette extrémité à l'extrémité sortante 31 de l'organe d'échange de chaleur 3, ladite extrémité sortante 31 étant équipée d'un écrou percé avec lequel la bague filetée coopère par vissage.The collection tank 2 also includes means of connection to a network for supplying cold water to the device to which the device is attached. The cold water supply means can be in the form for example of another flexible welded or screwed at one end to a tube of the device allowing the supply of cold water to the device. The other end of this other flexible opens into the collection tank 2 and may include connection means such as a threaded ring making it possible to connect this end to the outgoing end 31 of the heat exchange member 3, said outgoing end 31 being equipped with a pierced nut with which the threaded ring cooperates by screwing.

Alternativement, les moyens de connexion décrits précédemment peuvent comporter une opération de soudure, ou comporter des raccords dit rapides communément utilisés en plomberie.Alternatively, the connection means described above may include a welding operation, or include so-called quick connectors commonly used in plumbing.

L'organe d'échange de chaleur 3 se présente ici sous la forme d'un tuyau métallique, par exemple en cuivre ou en inox annelé, qui s'étend depuis l'extrémité ouverte entrante 30 en boucles pour aboutir à l'extrémité ouverte sortante 31, comme illustré sur la figure 2 ou la figure 4. Les boucles du tuyau sont portées par un même plan parallèle à un plan directeur principal du dispositif 1. Il est bien sûr aussi possible de prévoir deux rangées de boucles empilées verticalement et montés en parallèle de manière à augmenter la quantité de chaleur transmise.The heat exchange member 3 is here in the form of a metal pipe, for example made of copper or corrugated stainless steel, which extends from the incoming open end 30 in loops to end at the open end outgoing 31, as illustrated on the figure 2 or the figure 4 . The loops of the pipe are carried by the same plane parallel to a main director plane of the device 1. It is of course also possible to provide two rows of loops stacked vertically and mounted in parallel so as to increase the quantity of heat transmitted.

Cela permet d'avoir un ratio encombrement/efficacité avantageux pour équiper une douche.This allows you to have an advantageous size/efficiency ratio for equipping a shower.

L'organe d'échange de chaleur 3, est placé dans le bac de collecte 2.The heat exchange member 3 is placed in the collection tank 2.

Le bac de collecte 2 peut comporter des ouvertures latérales 21, permettant de connecter des moyens de récupération des eaux usées 4.The collection tank 2 may include side openings 21, making it possible to connect waste water recovery means 4.

Ces ouvertures latérales 21 peuvent être préformées dans les parois latérales du bac de collecte2. Des obturateurs peuvent être prévus pour venir boucher ces ouvertures latérales 21 si elles ne sont pas toutes connectées à des moyens de récupération des eaux usées 4.These side openings 21 can be preformed in the side walls of the collection bin2. Shutters can be provided to block these side openings 21 if they are not all connected to waste water recovery means 4.

Ces ouvertures latérales 21 peuvent alternativement ou complémentairement formées d'une partie de paroi latérale sécable qui a été retirée, ou d'une partie de paroi latérale découpée selon les besoins.These side openings 21 can alternatively or complementarily be formed from a breakable side wall portion which has been removed, or from a side wall portion cut as required.

En fait des moyens de récupération des eaux usées 4 sont juxtaposés au bac de collecte 2 vers lequel ils renvoient les eaux usées par le biais de ces ouvertures latérales.In fact, wastewater recovery means 4 are juxtaposed with the collection tank 2 to which they return the wastewater through these side openings.

Ces moyens de récupération des eaux usées 4 peuvent être installés sur la surface du receveur pour que le dispositif 1 échangeur de chaleur recouvre une plus grande surface du receveur 1.These wastewater recovery means 4 can be installed on the surface of the receiver so that the heat exchanger device 1 covers a larger surface area of the receiver 1.

Avantageusement, le dispositif 1 peut comporter un bac de collecte 21 et des moyens de récupération des eaux usées 4 configurés pour recouvrir 15 à 25% de la surface du receveur, afin de permettre le transfert de chaleur des eaux usées tout en limitant l'encombrement du dispositif 1 sur le receveur Re.Advantageously, the device 1 can include a collection tank 21 and waste water recovery means 4 configured to cover 15 to 25% of the surface of the receiver, in order to allow the heat transfer of the waste water while limiting the bulk of device 1 on receiver Re.

Avantageusement encore, le dispositif 1 peut comporter un bac de collecte et moyens de récupération des eaux usées 4 configurés pour recouvrir plus de 90% de la surface du receveur, afin d'améliorer encore la collecte et la récupération des eaux usées chaudes.Advantageously, the device 1 can include a collection tank and wastewater recovery means 4 configured to cover more than 90% of the surface of the receiver, in order to further improve the collection and recovery of hot wastewater.

Les moyens de récupération des eaux usées 4 peuvent être formés d'au moins une plaque 5 comportant des canaux 50 permettant l'écoulement des eaux usées jusqu'au bac de collecte 2. Ces canaux 50 peuvent comporter un fond ou non, dans ce dernier cas, le fond des canaux 50 étant formés par la surface de réception Su du receveur Re.The wastewater recovery means 4 can be formed of at least one plate 5 comprising channels 50 allowing the flow of wastewater to the collection tank 2. These channels 50 may have a bottom or not, in the latter case, the bottom of the channels 50 being formed by the reception surface Su of the receiver Re.

La au moins une plaque 5 des moyens récupération des eaux usées 4 peut comporter une paroi supérieure 51 comportant une ou une pluralité de trous, fentes ou lumières débouchant 52 dans les canaux 50 de ladite au moins une plaque, aptes à permettre l'écoulement des eaux usées dans les canaux 50, comme illustré sur la figure 1.The at least one plate 5 of the waste water recovery means 4 may comprise an upper wall 51 comprising one or a plurality of holes, slots or openings 52 opening into the channels 50 of said at least one plate, capable of allowing the flow of the wastewater in channels 50, as shown in the figure 1 .

Ces moyens de récupération des eaux usées 4 peuvent se présenter sous la forme d'au moins deux plaques 5',5" escamotables et coulissant au moins une dans une autre, aptes à être déployées pour s'adapter à la forme du receveur Re dans lequel elles sont installées, et permettre l'écoulement des eaux usées jusqu'au bac de collecte 2 placé dans ledit receveur Re.These waste water recovery means 4 can be in the form of at least two retractable 5',5" plates sliding at least one into another, capable of being deployed to adapt to the shape of the receiver Re in which they are installed, and allow the flow of wastewater to the collection tank 2 placed in said receiver Re.

Ces moyens de récupération des eaux usées 4 peuvent comporter aux moins deux plaques 5 de dimensions et de surfaces différentes, aptes à être installées pour s'adapter à la forme du receveur Re dans lequel elles sont installées, et permettre l'écoulement des eaux usées jusqu'au bac de collecte 2 placé dans ledit receveur Re.These waste water recovery means 4 can comprise at least two plates 5 of different dimensions and surfaces, able to be installed to adapt to the shape of the receiver Re in which they are installed, and allow the flow of waste water up to the collection bin 2 placed in said receiver Re.

Au moins une plaque 5 des moyens de récupération des eaux usées 4 peut être est en un matériau déformable, élastiquement ou plastiquement, pour se conformer à la forme du receveur Re dans lequel elle est installée, tout en continuant de permettre l'écoulement des eaux usées jusqu'au bac de collecte 2 placé dans ledit receveur Re. La au moins une plaque 5 peut être par exemple en un thermoplastique élastomère injectable tel que par exemple un polymère à base d'éthylène-propylène-diène monomère, appelé communément sous l'acronyme EPDM.At least one plate 5 of the waste water recovery means 4 may be made of a deformable material, elastically or plastically, to conform to the shape of the receiver Re in which it is installed, while continuing to allow the flow of water used up to the collection tray 2 placed in said receiver Re. The at least one plate 5 can be for example made of an injectable elastomeric thermoplastic such as for example a polymer based on ethylene-propylene-diene monomer, commonly called under the acronym EPDM.

Au moins une plaque 5 des moyens de récupération des eaux usées 4 peut être en un matériau apte à être découpé pour s'adapter à la forme du receveur Re dans lequel il est installé, tout en continuant de permettre l'écoulement des eaux usées jusqu'au bac de collecte 2 placé dans ledit receveur Re. La au moins une plaque 5 peut être par exemple en un thermoplastique élastomère injectable tel que par exemple un polymère à base d'éthylène-propylène-diène monomère, appelé communément sous l'acronyme EPDM.At least one plate 5 of the waste water recovery means 4 can be made of a material capable of being cut to adapt to the shape of the receiver Re in which it is installed, while continuing to allow the flow of wastewater to the collection tank 2 placed in said receiver Re. The at least one plate 5 can be for example made of an injectable elastomeric thermoplastic such as for example a polymer based on ethylene-propylene-diene monomer, commonly called by the acronym EPDM.

Le bac de collecte 2 peut comporter une tablette supérieure 22 amovible pour faciliter l'accès au bac de collecte 2 et le nettoyage ou la maintenance de l'organe d'échange de chaleur. Cette tablette supérieure amovible 22 peut comporter des moyens de récupération complémentaires des eaux usées sous la forme par exemple d'une pluralité de trous, fentes ou lumières débouchant 220 dans le bac de collecte 2, comme illustré sur la figure 1.The collection tank 2 may include a removable upper shelf 22 to facilitate access to the collection tank 2 and cleaning or maintenance of the heat exchange member. This removable upper shelf 22 may include additional wastewater recovery means in the form for example of a plurality of holes, slots or openings opening 220 into the collection tank 2, as illustrated in the figure 1 .

La figure 1 et la figure 2 présentent différents exemples de moyens de récupération des eaux usées 4 et de plaques 5 correspondantes.There figure 1 and the figure 2 present different examples of wastewater recovery means 4 and corresponding plates 5.

En combinant différente plaques avec le bac de collecte, le dispositif échangeur de chaleur 1 peut recouvrir 15 à 25% de la surface de réception Su du receveur Re, comme illustré sur les figures 1 et 2.By combining different plates with the collection tray, the heat exchanger device 1 can cover 15 to 25% of the receiving surface Su of the receiver Re, as illustrated in the figures 1 and 2 .

En fait, comme illustré sur les figures 1 et 2, le dispositif échangeur de chaleur 1 peut recouvrir plus de 90% de la surface de réception Su du receveur Re, permettant un traitement quasi-total des eaux usées au plus tôt.In fact, as illustrated in the figures 1 and 2 , the heat exchanger device 1 can cover more than 90% of the receiving surface Su of the receiver Re, allowing almost total treatment of wastewater as soon as possible.

Le dispositif échangeur de chaleur 1 (bac de collecte 2 et plaques 5) peut comporter des cannelures ou gorges sous sa face inférieures, afin de permettre aux eaux usées tombées dans la surface de réception Su du receveur Re d'être canalisées et évacuées jusqu'à l'orifice Oe d'évacuation des eaux usées du receveur Re.The heat exchanger device 1 (collection tray 2 and plates 5) may include grooves or grooves under its lower face, in order to allow waste water falling into the receiving surface Su of the receiver Re to be channeled and evacuated up to at the Oe wastewater discharge port of the receiver Re.

Les moyens de récupération des eaux usées 4 peuvent également être formés d'au moins une baguette 40 posée sur la surface de réception Su du receveur Re permettant de guider l'écoulement des eaux usées jusqu'au bac de collecte 2. La au moins une baguette 40 peut être recouverte par au moins une paroi supérieure 41 comportant un ou une pluralité de trous, fentes ou lumières débouchant, aptes à permettre l'écoulement des eaux usées jusqu'à la au moins une baguette et jusqu'au bac de collecte 2. Cette au moins une paroi supérieure 41 permet avantageusement à un utilisateur de marcher ou de stationner sur ladite au moins une paroi supérieure.The wastewater recovery means 4 can also be formed of at least one rod 40 placed on the receiving surface Su of the receiver Re making it possible to guide the flow of wastewater to the collection tank 2. The at least one rod 40 can be covered by at least one upper wall 41 comprising one or a plurality of holes, slots or openings, capable of allowing the flow of waste water up to the at least one rod and up to the collection tank 2 This at least one upper wall 41 advantageously allows a user to walk or park on said at least one upper wall.

Les moyens de récupération des eaux usées 4 peuvent également être formés par au moins un élément 40 comportant une baguette 41 posée sur la surface de réception Su du receveur Re permettant de guider l'écoulement des eaux usées jusqu'au bac de collecte 2. Le au moins un élément peut comporter au moins une paroi supérieure 42 comportant un ou une pluralité de trous, fentes ou lumières débouchant, aptes à permettre l'écoulement des eaux usées jusqu'à la au moins une baguette et jusqu'au bac de collecte 2. Cette au moins une paroi supérieure 42 permet avantageusement à un utilisateur de marcher ou de stationner sur ladite au moins une paroi supérieure 42 et sur le bac de collecte 2.The waste water recovery means 4 can also be formed by at least one element 40 comprising a rod 41 placed on the receiving surface Su of the receiver Re making it possible to guide the flow of waste water to the collection tank 2. The at least one element may comprise at least one upper wall 42 comprising one or a plurality of holes, slots or openings, capable of allowing the flow of waste water up to the at least one rod and up to the collection tank 2 This at least one upper wall 42 advantageously allows a user to walk or park on said at least one upper wall 42 and on the collection bin 2.

Les moyens de récupération des eaux usées 4 peuvent aussi être formé tout simplement d'un ou plusieurs passages latéraux, traversantes, dans une ou des parois latérales du bac de collecte 2. Ces passages peuvent être formés par les ouvertures latérales 21 du bac de collecte 2.The waste water recovery means 4 can also be simply formed by one or more side passages, through, in one or more side walls of the collection tank 2. These passages can be formed by the side openings 21 of the collection tank 2.

Comme illustré sur la figure 6, la paroi supérieure 51 de la au moins une plaque 5 ou de la au moins paroi supérieure 42 du au moins un élément 10, et éventuellement la tablette 22 peuvent former une surface inclinée Si vers une extrémité distale de la douche. Cela permet de laisser une plus grande place au bac de collecte 2 et à l'organe échangeur de chaleur 3, tout en évitant de former un ressaut dans la douche. Cette surface inclinée Si peut comporter comme évoqué précédemment un/une ou plusieurs trous, fentes ou lumières 52, 220 traversant pour laisser couler les eaux usées dans le receveur Re jusqu'au bac de collecte 2.As illustrated on the Figure 6 , the upper wall 51 of the at least one plate 5 or of the at least upper wall 42 of the at least one element 10, and possibly the shelf 22 can form an inclined surface Si towards a distal end of the shower. This leaves more room for the collection tank 2 and the heat exchanger member 3, while avoiding forming a projection in the shower. This inclined surface Si may include, as mentioned above, one or more holes, slots or lights 52, 220 passing through to let the wastewater flow into the receiver Re up to the collection tank 2.

L'invention a trait à un ensemble échangeur de chaleur. Cet ensemble échangeur de chaleur peut équiper un appareil alimenté en eau froide et qui utilise de l'eau chaude ou des moyens de chauffage de l'eau froide destiné à chauffer de l'eau froide au moyen de la chaleur des eaux usées notamment grises issues d'un appareil, ici la douche évoquée ci avant.The invention relates to a heat exchanger assembly. This heat exchanger assembly can equip a device supplied with cold water and which uses hot water or cold water heating means intended to heat cold water by means of the heat of waste water, in particular gray water from of a device, here the shower mentioned above.

Cet ensemble comporte un dispositif échangeur de chaleur 1 tel que décrit ci avant.This assembly comprises a heat exchanger device 1 as described above.

Cet ensemble comporte également un mitigeur thermostatique 6. Par le terme « mitigeur thermostatique », on désigne un organe de régulation de la température de sortie d'un liquide dudit organe par une action sur des débits entrants de liquides à différentes température, apte à délivrer un liquide sortant à une température désirée. Cet organe de régulation peut comporter une ou plusieurs vannes thermostatiques.This assembly also includes a thermostatic mixer 6. The term "thermostatic mixer" designates a member for regulating the outlet temperature of a liquid from said member by an action on incoming flow rates of liquids at different temperatures, capable of delivering a liquid leaving at a desired temperature. This regulating body may include one or more thermostatic valves.

Ce mitigeur thermostatique comporte de manière connue des moyens de sélection de l'ouverture/fermeture/débit de sortie et des moyens de sélection de la température de sortie de l'eau vers l'appareil, sous la forme ici de manettes respectivement latérales droite et gauche, comme illustré sur la figure 3.This thermostatic mixer comprises, in a known manner, means for selecting the opening/closing/outlet flow and means for selecting the outlet temperature of the water to the device, here in the form of respectively right side and side levers. left, as shown in the Figure 3 .

Ce mitigeur thermostatique comporte de manière connue des moyens de branchement à un réseau d'apport en eau froide 60, des moyens de branchement à un réseau d'apport en eau chaude 61, par exemple sous la forme de flexibles soudés ou vissés à une extrémité à une source d'alimentation respectivement en eau froide et en eau chaude, et à l'autre extrémité reliés audit mitigeur thermostatique 6.This thermostatic mixer comprises in a known manner means of connection to a cold water supply network 60, means of connection to a hot water supply network 61, for example in the form of flexibles welded or screwed at one end to a supply source of cold water and hot water respectively, and at the other end connected to said thermostatic mixer 6.

Ce mitigeur thermostatique 6 comporte également de manière connue des moyens de branchement 62 à un réseau de délivrance d'une eau thermostatée vers ledit appareil, par exemple vers plus particulièrement une pomme de douche non illustrée ici.This thermostatic mixer 6 also comprises, in a known manner, means of connection 62 to a network for delivering thermostatically controlled water to said device, for example to more particularly a apple of water. shower not shown here.

Ce mitigeur thermostatique 6 comporte de plus des moyens d'alimentation en eau froide du dispositif échangeur de chaleur 63, par exemple sous la forme de flexibles soudés ou vissés à une extrémité du mitigeur thermostatique 6 et plus particulièrement à l'arrivée d'eau froide, et à une autre extrémité, reliés au dispositif échangeur de chaleur, plus particulièrement à l'extrémité entrante 30 de l'organe d'échange de chaleur 3.This thermostatic mixer 6 further comprises means for supplying cold water to the heat exchanger device 63, for example in the form of flexibles welded or screwed to one end of the thermostatic mixer 6 and more particularly to the cold water inlet , and at another end, connected to the heat exchanger device, more particularly to the incoming end 30 of the heat exchange member 3.

Ce mitigeur thermostatique 6 présente également des moyens de connexion à un réseau de l'apport d'eau 64 du dispositif échangeur de chaleur 1, par exemple sous la forme de flexibles soudés ou vissés à une extrémité au dispositif échangeur de chaleur, plus particulièrement à l'extrémité sortante 30 de l'organe d'échange de chaleur 3, et à une autre extrémité, reliés à au mitigeur thermostatique 6.This thermostatic mixer 6 also has means of connection to a network of the water supply 64 of the heat exchanger device 1, for example in the form of flexibles welded or screwed at one end to the heat exchanger device, more particularly at the outgoing end 30 of the heat exchange member 3, and at another end, connected to the thermostatic mixer 6.

Le sens de circulation de l'eau est schématisé sur la figure 3 par des flèches.The direction of water circulation is shown schematically on the Figure 3 by arrows.

Le mitigeur thermostatique 6 peut ainsi utiliser l'eau chaude issue du réseau d'eau chaude et l'eau issue du dispositif échangeur de chaleur pour délivrer une eau thermostatée à l'appareil.The thermostatic mixer 6 can thus use hot water from the hot water network and water from the heat exchanger device to deliver thermostatically controlled water to the device.

L'eau froide alimentant l'organe échangeur de chaleur 3 passe par le mitigeur thermostatique 6, ce qui permet de couper l'arrivée d'eau froide au niveau dudit mitigeur pour empêcher une surpression des réseaux du dispositif 1 quand il n'est pas utilisé. Il peut alors être envisagé d'utiliser des raccords rapides pour connecter le dispositif 1 au mitigeur thermostatique 6, ces raccords étant configurés pour permettre de connecter également les moyens d'alimentation en eau froide du dispositif échangeur de chaleur 63 aux moyens de connexion à un réseau de l'apport d'eau 64. Ainsi, il est possible de retirer simplement, rapidement et temporairement le dispositif 1et de pouvoir continuer à utiliser la douche, puis de rebrancher le dispositif tout aussi simplement et rapidement.The cold water supplying the heat exchanger member 3 passes through the thermostatic mixer 6, which makes it possible to cut off the cold water supply at said mixer to prevent overpressure of the networks of the device 1 when it is not used. It can then be envisaged to use quick connectors to connect the device 1 to the thermostatic mixer 6, these connectors being configured to also allow the cold water supply means of the heat exchanger device 63 to be connected to the means of connection to a water supply network 64. Thus, it is possible to simply, quickly and temporarily remove the device 1 and to be able to continue to use the shower, then to reconnect the device just as simply and quickly.

Le mitigeur thermostatique 6 peut comporter des moyens de régulation des différents réseaux et des apports d'eau, notamment par des vannes ou des robinets.The thermostatic mixer 6 may include means of regulating the various networks and water supplies, in particular by valves or taps.

L'invention concerne également un appareil comportant un receveur Re, notamment une douche, comportant un dispositif échangeur de chaleur 1 tel que décrit précédemment.The invention also relates to an apparatus comprising a receiver Re, in particular a shower, comprising a heat exchanger device 1 as described above.

L'invention concerne aussi un appareil comportant un receveur Re, notamment une douche, comportant un système échangeur de chaleur tel que décrit précédemment.The invention also relates to an apparatus comprising a receiver Re, in particular a shower, comprising a heat exchanger system as described above.

Claims (15)

Dispositif (1) échangeur de chaleur destiné à chauffer de l'eau froide au moyen de la chaleur des eaux usées notamment grises issues d'un appareil qui comporte un receveur (Re) présentant une surface de réception (Su) d'eaux usées, ledit appareil pouvant être utilisé indépendamment dudit dispositif (1), ledit appareil étant notamment une douche, le dispositif (1) comportant un bac de collecte (2) des eaux usées et un organe (3) d'échange de chaleur disposé dans le bac de collecte (2), l'organe (3) comportant des moyens de connexion, d'une part à un réseau d'alimentation en eau froide, et d'autre part à un réseau d'apport d'eau vers l'appareil lorsque ledit dispositif (1) est installé sur un tel appareil, ledit dispositif (1) comportant en outre des moyens de récupération des eaux usées (4), caractérisé par le fait que le bac de collecte (2) des eaux usées est configuré pour être installé sur la surface de réception (Su) du receveur (Re) lorsque ledit dispositif (1) est installé sur un tel appareil et par le fait que ces moyens de récupération des eaux usées (4) sont configurés pour être installés sur la surface de réception (Su) dudit receveur (Re) lorsque ledit dispositif (1) est installé sur un tel appareil et juxtaposés au bac de collecte (2) vers lequel ils renvoient les eaux usées.Device (1) heat exchanger intended to heat cold water by means of the heat of waste water, in particular gray waste water coming from a device which comprises a receiver (Re) having a surface for receiving (Su) waste water, said apparatus being able to be used independently of said device (1), said apparatus being in particular a shower, the device (1) comprising a waste water collection tank (2) and a heat exchange member (3) arranged in the tank collection (2), the member (3) comprising means of connection, on the one hand to a cold water supply network, and on the other hand to a water supply network to the device when said device (1) is installed on such a device, said device (1) further comprising wastewater recovery means (4), characterized in that the wastewater collection tank (2) is configured to be installed on the receiving surface (Su) of the receiver (Re) when said device (1) is installed on such a device and by the fact that these waste water recovery means (4) are configured to be installed on the surface reception (Su) of said receiver (Re) when said device (1) is installed on such a device and juxtaposed to the collection tank (2) to which they return the wastewater. Dispositif (1) échangeur de chaleur selon la revendication 1,
caractérisé par le fait que les moyens de récupération des eaux usées (4) se présentent sous la forme d'au moins une plaque (5) comportant des canaux (50) permettant l'écoulement des eaux usées jusqu'au bac de collecte (2).Heat exchanger device (1) according to claim 1,
characterized by the fact that the wastewater recovery means (4) are in the form of at least one plate (5) comprising channels (50) allowing the flow of wastewater to the collection tank (2 ). Dispositif (1) échangeur de chaleur selon l'une des revendications 1 à 2, caractérisé par le fait que les moyens de récupération des eaux usées (4) se présentent sous la forme d'au moins deux plaques (5', 5") escamotables et coulissant au moins une dans une autre, aptes à être déployées pour s'adapter à la forme du receveur (Re) dans lequel elles sont installées lorsque ledit dispositif (1) est installé sur un tel appareil, et permettre l'écoulement des eaux usées jusqu'au bac de collecte (2) placé dans ledit receveur (Re) lorsque ledit dispositif (1) est installé sur un tel appareil.Heat exchanger device (1) according to one of claims 1 to 2, characterized in that the waste water recovery means (4) are in the form of at least two plates (5', 5") retractable and sliding at least one into another, capable of being deployed to adapt to the shape of the receiver (Re) in which they are installed when said device (1) is installed on such a device, and allow the flow of waste water to the collection tank (2) placed in said receiver (Re) when said device (1) is installed on such a device. Dispositif (1) échangeur de chaleur selon l'une des revendications 1 à 3, caractérisé par le fait que les moyens de récupération des eaux usées (4) comportent aux moins deux plaques (5) de dimensions et de surfaces différentes, aptes à être installées pour s'adapter à la forme du receveur (Re) dans lequel elles sont installées lorsque ledit dispositif (1) est installé sur un tel appareil, et permettre l'écoulement des eaux usées jusqu'au bac de collecte (2) placé dans ledit receveur (Re) lorsque ledit dispositif (1) est installé sur un tel appareil.Heat exchanger device (1) according to one of claims 1 to 3, characterized in that the waste water recovery means (4) comprise at least two plates (5) of different dimensions and surfaces, capable of being installed to adapt to the shape of the receiver (Re) in which they are installed when said device (1) is installed on such a device, and allow the flow wastewater to the collection tank (2) placed in said receiver (Re) when said device (1) is installed on such a device. Dispositif (1) échangeur de chaleur selon l'une des revendications 1 à 4, caractérisé par le fait que au moins une plaque (5,5',5") des moyens de récupération des eaux usées (4) est en un matériau déformable, élastiquement ou plastiquement, pour se conformer à la forme du receveur (Re) dans lequel elle est installée lorsque ledit dispositif (1) est installé sur un tel appareil, tout en continuant de permettre l'écoulement des eaux usées jusqu'au bac de collecte (2) placé dans ledit receveur (Re) lorsque ledit dispositif (1) est installé sur un tel appareil.Heat exchanger device (1) according to one of claims 1 to 4, characterized in that at least one plate (5.5',5") of the waste water recovery means (4) is made of a deformable material , elastically or plastically, to conform to the shape of the receiver (Re) in which it is installed when said device (1) is installed on such a device, while continuing to allow the flow of wastewater to the tank. collection (2) placed in said receiver (Re) when said device (1) is installed on such a device. Dispositif (1) échangeur de chaleur selon l'une des revendications 1 à 5, caractérisé par le fait que au moins une plaque (5,5',5") des moyens de récupération des eaux usées (4) est en un matériau apte à être découpé pour s'adapter à la forme du receveur dans lequel il est installé, tout en continuant de permettre l'écoulement des eaux usées jusqu'au bac de collecte (2) placé dans ledit receveur (Re) lorsque ledit dispositif (1) est installé sur un tel appareil.Heat exchanger device (1) according to one of claims 1 to 5, characterized in that at least one plate (5.5',5") of the waste water recovery means (4) is made of a suitable material to be cut to adapt to the shape of the receiver in which it is installed, while continuing to allow the flow of wastewater to the collection tank (2) placed in said receiver (Re) when said device (1 ) is installed on such a device. Dispositif (1) échangeur de chaleur selon la revendication 1,
caractérisé par le fait que les moyens de récupération des eaux usées (4) sont formés par au moins un élément (40) comportant une baguette (41), posée sur la surface de réception (Su) du receveur (Re) lorsque ledit dispositif (1) est installé sur un tel appareil, permettant de guider l'écoulement des eaux usées jusqu'au bac de collecte (2).Heat exchanger device (1) according to claim 1,
characterized by the fact that the waste water recovery means (4) are formed by at least one element (40) comprising a rod (41), placed on the receiving surface (Su) of the receiver (Re) when said device ( 1) is installed on such a device, making it possible to guide the flow of wastewater to the collection tank (2). Dispositif (1) échangeur de chaleur selon la revendication 1,
caractérisé par le fait que les moyens de récupération des eaux usées (4) sont formés par un ou plusieurs passages latéraux, traversants, dans une ou des parois latérales du bac de collecte (2).Heat exchanger device (1) according to claim 1,
characterized by the fact that the wastewater recovery means (4) are formed by one or more lateral, through passages in one or more side walls of the collection tank (2). Dispositif (1) échangeur de chaleur selon l'une des revendications 1 à 8, caractérisé par le fait que le bac de collecte (2) comporte des moyens de récupération complémentaires des eaux usées (220).Heat exchanger device (1) according to one of claims 1 to 8, characterized in that the collection tank (2) comprises additional means for recovering waste water (220). Dispositif (1) échangeur de chaleur selon l'une des revendications 1 à 9, caractérisé par le fait que les moyens de récupération des eaux usées (4) et le bac de collecte (2) sont configurés pour recouvrir 15 à 25% de la surface de réception du receveur (Re) lorsque ledit dispositif (1) est installé sur un tel appareil.Heat exchanger device (1) according to one of claims 1 to 9, characterized in that the waste water recovery means (4) and the collection tank (2) are configured to cover 15 to 25% of the receiving surface of the receiver (Re) when said device (1) is installed on such a device. Dispositif (1) échangeur de chaleur selon l'une des revendications 1 à 10, caractérisé par le fait que les moyens de récupération des eaux usées (4) et le bac de collecte (2) sont configurés pour recouvrir plus de 90% de la surface de réception du receveur (Re) lorsque ledit dispositif (1) est installé sur un tel appareil.Heat exchanger device (1) according to one of claims 1 to 10, characterized in that the waste water recovery means (4) and the collection tank (2) are configured to cover more of 90% of the receiving surface of the receiver (Re) when said device (1) is installed on such a device. Ensemble échangeur de chaleur destiné à chauffer de l'eau froide au moyen de la chaleur des eaux usées notamment grises issues d'un appareil comportant un receveur (Re), ledit appareil pouvant être utilisé indépendamment dudit dispositif (1), ledit appareil pouvant être notamment une douche, ledit ensemble comportant un dispositif (1) échangeur de chaleur selon l'une des revendications 1 à 11, ledit ensemble comportant également un mitigeur thermostatique (6), comportant des moyens de branchement à un réseau d'apport en eau froide (60) et en eau chaude (61), et des moyens de branchement (62) à un réseau de délivrance d'une eau thermostatée vers ledit appareil, caractérisé par le fait que le mitigeur thermostatique (6) comporte d'une part des moyens d'alimentation en eau froide (63) du dispositif échangeur de chaleur (1) et d'autre part des moyens de connexion (64) à un réseau de l'apport d'eau du dispositif (1) échangeur de chaleur vers l'appareil.Heat exchanger assembly intended to heat cold water by means of the heat of waste water, in particular gray water, coming from an apparatus comprising a receiver (Re), said apparatus being able to be used independently of said device (1), said apparatus being able to be in particular a shower, said assembly comprising a heat exchanger device (1) according to one of claims 1 to 11, said assembly also comprising a thermostatic mixer (6), comprising means of connection to a cold water supply network (60) and hot water (61), and means of connection (62) to a network for delivering thermostatically controlled water to said device, characterized in that the thermostatic mixer (6) comprises on the one hand means for supplying cold water (63) to the heat exchanger device (1) and on the other hand means for connecting (64) to a network for supplying water from the heat exchanger device (1) to the 'device. Ensemble échangeur de chaleur selon la revendication 12,
caractérisé par le fait que mitigeur thermostatique (6) comporte des moyens de régulation des différents réseaux et des apports d'eau, notamment par des vannes ou des robinets.Heat exchanger assembly according to claim 12,
characterized by the fact that the thermostatic mixer (6) includes means for regulating the various networks and water supplies, in particular by valves or taps. Appareil notamment de type douche, comportant un receveur (Re), ledit receveur (Re) étant équipé d'un dispositif (1) échangeur de chaleur selon l'une des revendications 1 à 11, ledit appareil pouvant être utilisé indépendamment dudit dispositif (1),.Apparatus in particular of the shower type, comprising a receiver (Re), said receiver (Re) being equipped with a heat exchanger device (1) according to one of claims 1 to 11, said apparatus being able to be used independently of said device (1). ),. Appareil notamment de type douche, comportant un receveur (Re), ledit appareil étant équipé d'un ensemble échangeur de chaleur selon l'une des revendications 12 à 13.Apparatus in particular of the shower type, comprising a receiver (Re), said apparatus being equipped with a heat exchanger assembly according to one of claims 12 to 13.
EP23219682.4A 2022-12-22 2023-12-22 Gray water heat exchanger assembly and device Pending EP4390240A1 (en)

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FR2214208A FR3144262A1 (en) 2022-12-22 2022-12-22 device and heat exchanger assembly for gray water

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100270009A1 (en) * 2009-04-22 2010-10-28 Gomyung-Enertech Co., Ltd. Apparatus for recycling wasted heat using waste hot water
WO2015183155A1 (en) * 2014-05-27 2015-12-03 Recalor Ab Floor drain
FR3106878A1 (en) 2020-02-05 2021-08-06 Tineko Heat exchanger especially for shower tray

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100270009A1 (en) * 2009-04-22 2010-10-28 Gomyung-Enertech Co., Ltd. Apparatus for recycling wasted heat using waste hot water
WO2015183155A1 (en) * 2014-05-27 2015-12-03 Recalor Ab Floor drain
FR3106878A1 (en) 2020-02-05 2021-08-06 Tineko Heat exchanger especially for shower tray

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