EP4603760B1 - Installation thermique hybride pour le chauffage de l'eau - Google Patents

Installation thermique hybride pour le chauffage de l'eau

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Publication number
EP4603760B1
EP4603760B1 EP25157324.2A EP25157324A EP4603760B1 EP 4603760 B1 EP4603760 B1 EP 4603760B1 EP 25157324 A EP25157324 A EP 25157324A EP 4603760 B1 EP4603760 B1 EP 4603760B1
Authority
EP
European Patent Office
Prior art keywords
plant
air distributor
heat exchanger
air
fumes
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.)
Active
Application number
EP25157324.2A
Other languages
German (de)
English (en)
Other versions
EP4603760A1 (fr
Inventor
Daniela Chiesa
Gianluca Ferrari
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.)
Italtherm SpA
Original Assignee
Italtherm SpA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Italtherm SpA filed Critical Italtherm SpA
Publication of EP4603760A1 publication Critical patent/EP4603760A1/fr
Application granted granted Critical
Publication of EP4603760B1 publication Critical patent/EP4603760B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H4/00—Fluid heaters characterised by the use of heat pumps
    • F24H4/02—Water heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
    • F24H1/16—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled
    • F24H1/165—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled using fluid fuel
    • 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
    • F24D12/00—Other central heating systems
    • F24D12/02—Other central heating systems having more than one heat source
    • 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
    • F24D2200/04—Gas or oil fired boiler
    • 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
    • F24D2200/12—Heat pump
    • F24D2200/123—Compression type heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation

Definitions

  • the present patent application for an industrial invention relates to a hybrid thermal plant for water heating.
  • the field of reference is that of hybrid plants, comprising a combustion cell and a heat pump.
  • Hybrid thermal plant comprising:
  • the frame comprises:
  • the known plants have a second drawback due to the fact that the heating of the refrigerant gas flowing in the second evaporator is strongly influenced by external environmental conditions, since the refrigerant gas is heated by the external air. Given the strong dependence on environmental conditions, large airflows of external air are needed, and consequently large evaporator heat exchange surfaces are required to heat the refrigerant gas using external air. Therefore, the second evaporator is usually bulky and contributes significantly to the overall size of the known hybrid thermal plant.
  • ITBO20120458 discloses a thermal plant comprising a combustion cell, a heat exchanger comprising an evaporator, a compressor, and a gas/water heat exchanger.
  • the combustion cell comprises an inlet with a first fan for the intake of external air into the combustion cell.
  • the heat exchanger comprises an inlet for the intake of external air into the heat exchanger.
  • a second fan is arranged at an outlet of the heat exchanger for exit air and fumes from the heat exchanger.
  • the flow of external air entering the combustion cell is regulated by modifying the rotational speed of the first fan.
  • the flow of external air entering the heat exchanger is regulated by modifying the rotational speed of the second fan.
  • the plant of ITBO20120458 has the drawback that the regulation of the flow of external air entering the combustion cell and the heat exchanger is regulated separately, by acting on the two fans separately.
  • the use of two fans leads to high energy consumption and large volumes.
  • the external air is not distributed between the combustion chamber and the heat exchanger according to the needs of both.
  • the flow of external air entering the heat exchanger is preferably higher than the flow of external air entering the combustion cell, since the evaporator requires a high flow of external air to heat the refrigerant gas.
  • EP4056920 discloses a thermal plant comprising a boiler, a heat pump plant, a technical water plant, an evaporator, a first fan at an inlet of the boiler, and a second fan downstream of the evaporator.
  • FR2547027 discloses a thermal plant comprising a boiler, an evaporator, a fume evacuation duct from the boiler comprising an outlet near the evaporator, a first fan at an outlet of a frame of the plant, and a second fan in the duct.
  • EP3361179 discloses a monoblock heating device obtained by integrating a gas boiler and an air-to-water heat pump.
  • the purpose of the present invention is to overcome the drawbacks of the known art, providing a hybrid thermal plant that allows the distribution of external air between the combustion cell and the heat exchanger, based on the needs of both the combustion cell and the heat exchanger, and the regulation the airflow entering the combustion cell and the heat exchanger, while being simultaneously compact, lightweight, cost-effective, and easy to install.
  • Another purpose is to provide a hybrid thermal plant that allows efficient heating of the refrigerant gas of the heat pump, independently of the external air temperature.
  • the hybrid thermal plant according to the invention is defined by claim 1.
  • the plant according to the invention comprises a single fan and an air distributor, it is possible to distribute the external air entering to both the combustion cell and the heat exchanger, thereby reducing the plant's energy consumption and size.
  • the plant according to the invention comprises one fan and an air distributor. In this way, the plant according to the invention has lower energy consumption, a smaller size, and reduced noise levels.
  • a hybrid thermal plant according to the invention is disclosed, generally indicated by reference number 100.
  • the plant (100) comprises:
  • the combustion cell (1) comprises a frame (10) that defines a chamber (11).
  • the combustion cell (1) comprises a burner (12), optionally arranged in the chamber (11) of the combustion cell and designed to ignite a combustion of gas and external air, generating high-temperature fumes.
  • the combustion cell (1) comprises:
  • the chamber (11) of the combustion cell is designed to contain the fumes generated by the burner (12).
  • the combustion cell (1) comprises a mixing device arranged upstream of the burner (12) and designed to pre-mix external air and gas before said external air and gas enter the burner (12).
  • the mixing device is absent, the external air and gas enter directly the burner (12).
  • the combustion cell (1) comprises a condensing water/fumes exchanger (15) arranged in the chamber (11) of the combustion cell so that the water/fumes exchanger (15) is externally surrounded by the fumes generated by the burner (12).
  • the water/fumes exchanger (15) is connected to the technical water circuit (5), so that the water/fumes exchanger (15) is traversed by water from the technical water circuit (5).
  • the water/fumes exchanger (15) comprises an inlet (15a) connected to the first section (50) of the technical water circuit and an outlet (15b) connected to the second section (51) of the technical water circuit.
  • the water circulating in the water/fumes exchanger (15) is heated by the high-temperature fumes surrounding the water/fumes exchanger.
  • the water/fumes exchanger (15) can be any type of heat exchanger, for example, coil, plate, or tube bundle.
  • the water/fumes exchanger (15) is arranged in the chamber (11) of the combustion cell near the burner (12).
  • the heat exchanger (2) comprises a frame (20) that defines a chamber (21).
  • the heat exchanger (2) comprises an evaporator (22) arranged in the chamber (21) of the heat exchanger.
  • the evaporator (22) is connected to the compressor (3) and the gas/water exchanger (4) and is designed to be passed through by refrigerant gas.
  • the evaporator (22) comprises an inlet (22a) for the entry of refrigerant gas into the evaporator (22) and an outlet (22b) for the exit of refrigerant gas from the evaporator (22).
  • the heat exchanger (2) comprises a first inlet (23) formed in the frame (20) of the heat exchanger for the entry of external air into the chamber (21) of the heat exchanger.
  • the chamber (11) of the combustion cell and the chamber (21) of the heat exchanger are in fluid communication with each other, so that the fumes generated by the burner (12) surround both the water/fumes exchanger (15) of the combustion cell and the evaporator (22) of the heat exchanger.
  • the heat exchanger (2) comprises an outlet (24) for the discharge of an air-fumes flow from the chamber (21) of the heat exchanger.
  • the fumes produced in the combustion cell surround the water-fumes exchanger (15) in the chamber (11) of the combustion cell, heating the water circulating through the water-fumes exchanger (15), then pass into the chamber (21) of the heat exchanger, mix with external air, generating an air-fumes flow that surrounds the evaporator (22), heating the refrigerant gas circulating in the evaporator (22), and exits the chamber (21) of the heat exchanger through the outlet (24).
  • the combustion cell (1) comprises an outlet (16) for the discharge of the fumes from the chamber (11) of the combustion cell
  • the heat exchanger (2) comprises a second inlet (26) for the entry of the fumes into the chamber (21) of the heat exchanger.
  • the plant (100) comprises a first connection channel (90) connected to the outlet (16) of the combustion cell and the second inlet (26) of the heat exchanger for the passage of fumes from the chamber (11) of the combustion cell to the chamber (21) of the heat exchanger.
  • the outlet (24) of the heat exchanger is formed at the bottom of a side wall of the frame (20) of the heat exchanger.
  • an ascending flow of fumes is created in the chamber (11) of the combustion cell and a descending flow of fumes and air is created in the chamber (21) of the heat exchanger.
  • the frame (9) of the plant comprises an opening (92) advantageously formed in a top wall of the frame (9) of the plant and designed to separately allows both the entry of external air into the frame (9) and the exit of the air-fumes flow from the plant (100).
  • the plant (100) comprises a single outlet channel (91) connected to the outlet (24) of the heat exchanger and passing through the opening (92) of the frame of the plant, for the discharge of the air-fumes flow from the plant (100).
  • the outlet channel (91) has a smaller size than the opening (92) of the frame of the plant, so that there is a gap between the edges of the opening (92) and the outlet channel (91) for the entry of air into the frame (9) of the plant from the outside.
  • the opening (92) is unique.
  • a splitter element (95) is arranged outside the frame (9) of the plant, on the opening (92) of the frame, and comprises the exit channel (91) and an inlet channel (93) for the entry of external air through the gap between the opening (92) of the frame of the plant and the exit channel (91).
  • the plant (100) comprises:
  • the fumes produced by the combustion in the combustion cell (1) are not free to circulate within the frame (9) of the plant and are forced to flow within the first sealing level of the plant (100) until they exit the plant (100).
  • the heat exchanger communicates with the combustion cell, the fumes generated by the combustion in the combustion cell pass from the combustion cell to the heat exchanger, heating the evaporator.
  • the first inlet of the heat exchanger it is possible to heat the refrigerant gas circulating in the evaporator of the heat exchanger with a flow that comprises both external air and the high-temperature fumes generated by combustion in the combustion cell.
  • This allows the use of a single evaporator that heats the refrigerant gas, reducing the size of the plant according to the invention, and a single exit for both the exhausted air and the fumes.
  • the fumes produced by combustion have a temperature higher than the external air and not dependent on environmental conditions.
  • the air-fumes flow has a higher, more stable, and less variable temperature compared to the temperature of external air alone. This increases the efficiency of the evaporator.
  • the increased efficiency of the evaporator means that smaller exchange surfaces can be used compared to known evaporators. Therefore, it is possible to make more compact evaporators with smaller sizes with respect to the known evaporator.
  • the plant (100) comprises:
  • the air distributor (7) is in fluid communication with the fan (6), the first inlet (12c) of the combustion chamber and the first inlet (23) of the heat exchanger, so that the air distributor receives incoming external air from the fan (6) and distributes said external air both to the combustion cell (1) and to the heat exchanger (2).
  • the air distributor (7) is separated from the first communication channel (90) of the plant.
  • the air distributor (7) comprises:
  • the second outlet (72) of the air distributor (7) is connected to the first inlet (23) of the heat exchanger through a second connecting channel (94) of the plant, to allow external air to flow from the air distributor (7) to the heat exchanger (2).
  • the first duct (71a) of the air distributor has a smaller section compared to a section of the second duct (72a) of the air distributor.
  • the plant according to the invention comprises a single fan and the air distributor.
  • the plant according to the invention comprises a single fan and an air distributor. In this way, the plant according to the invention has lower energy consumption, a smaller size, and reduced noise.
  • the frame (9) of the plant comprises a single inlet for external air and a single outlet for exhausted air and fumes, and that the combustion cell and the heat exchanger are in fluid communication with each other for the passage of fumes from the combustion cell to the heat exchanger, and the fact that the plant comprises a single fan and an air distributor, the plant has reduced energy consumption, is easy to install and maintain, is compact, and has a reduced size.
  • the heat exchanger requires a greater quantity of air than the combustion cell. Thanks to the fact that the first duct of the air distributor has a smaller cross-section than the second duct of the air distributor, the air distributor allows a smaller quantity of air to flow to the combustion cell compared to the amount of air that is directed to the heat exchanger. In other words, the ducts and outlets of the air distributor are sized based on the air flow required for the operation of the combustion cell and the heat exchanger.
  • the ratio between a width of the section of the first duct (71a) of the air distributor and the second duct (72a) of the air distributor is at least 1:10.
  • the amount of air entering the combustion cell (1) and the heat exchanger (2) depends on the width of the first duct (71a) and the second duct (72a), respectively.
  • the fan (6) is adjustable, meaning that it is possible to modify the fan speed, thereby adjusting the flow of incoming external air to the air distributor (7).
  • the air distributor (7) can be:
  • This air distributor (7) comprises:
  • first duct (71a) and the second duct (72a) of the air distributor have axes inclined relative to each other in a "V" shape and inclined with respect to the axis of the inlet (70) of the air distributor.
  • said air distributor (7) has a fixed external air distribution ratio, dependent on the width of the first duct (71a) and the second duct (72a) of the air distributor and proportional to the fan speed.
  • FIG. 6 a first variant of the air distributor (7) is shown, in which this air distributor (7) is of the constant throttling mechanical type, differing from the air distributor in Figs. 4 and 5 in that the first duct (71a) of the air distributor branches off from the second duct (72a) of the air distributor.
  • the first duct (71a) of the air distributor and the second duct (72a) of the air distributor have axes that are perpendicular to each other, and the axis of the second duct (72a) of the air distributor is coaxial with the inlet (70) of the air distributor.
  • a second variant of the air distributor (7) is shown, in which said air distributor (7) is of the variable geometry mechanical type, differing from the air distributor in Figs. 4 and 5 in that it comprises a mechanical regulation valve (75), for example of the flap type, arranged on the first outlet (71) of the air distributor.
  • the regulation valve (75) comprises a movable element. Based on a pressure exerted on said movable element by the airflow generated by the fan (6), the regulation valve (75) modifies the quantity of air flowing out of the first outlet (71a).
  • the air distributor (7) may comprise a mechanical regulation valve on the second outlet of the air distributor.
  • the regulation valve on the first outlet (71) of the air distributor allows:
  • this air distributor (7) is of the electrically/electronically driven type, differing from the air distributor in Figs. 4 and 5 in that it comprises an electrically/electronically controlled regulation valve (76), for example of motorized damper type, in the first duct (71a) of the air distributor.
  • the electronic/electronical control of the regulation valve (76) can occur in an open loop or closed loop with a sensor inserted inside the first duct (71a) of the air distributor to detect the air flow passing through the first duct (71a) of the air distributor.
  • the air distributor (7) may comprise an electrically/electronically controlled regulation valve in the second duct of the air distributor.
  • the regulation valve (76) with electronic control allows direct control of the airflow distribution towards the first and second outlets of the air distributor, and consequently direct control of all the airflows within the plant (100).
  • the compressor (3) comprises an inlet (30) connected by a pipe to the outlet (22b) of the evaporator of the heat exchanger, and an outlet (31).
  • the gas/water exchanger (4) comprises a first inlet (40) connected by a pipe to the outlet (31) of the compressor and a first outlet (41) connected by a pipe to the inlet (22a) of the evaporator of the heat exchanger.
  • the gas/water exchanger (4) also comprises a second inlet (42) connected to the first section (50) of the technical water circuit and a second outlet (43) connected to the technical water circuit (5).
  • the technical water circuit (5) comprises a pump (52) arranged in the first section (50) to enable the circulation of the technical water.
  • the refrigerant gas heated in the evaporator (22), and then by the compressor (3), is condensed in the gas/water exchanger (4), releasing heat and consequently heating the technical water in the technical water circuit (5) circulating in the gas/water exchanger (4).
  • the refrigerant gas helps preheat the technical water in the technical water circuit before it reaches the combustion cell (1). Therefore, the combustion cell (1) will need to supply less energy to heat the technical water, reducing gas consumption and CO2 emissions.
  • a three-way valve (44) is arranged in the first section (50) of the technical water circuit, downstream of the gas/water exchanger (4) and upstream of the water/fumes exchanger (15) of the combustion cell.
  • the three-way valve (44) is connected at the inlet to the second outlet (43) of the gas/water exchanger and at the outlet to the inlet (15a) of the water/fumes exchanger and to the second section (51) of the technical water circuit.
  • the presence of the three-way valve (44) and the electrically/electronically controlled air distributor (7) is particularly advantageous because it is possible to close the first duct (71a) of the air distributor, preventing air from passing to the combustion cell (1), when the three-way valve (44) prevents the flow of water to the combustion cell (1).
  • the plant (100) comprises a control unit and sensors connected to the control unit, so that the control unit manages and regulates the activation and deactivation of the fan (6), the air distributor (7), the combustion chamber (1), the compressor (3), the three-way valve (44), and the pump (52).
  • the control unit manages and regulates the thermal exchange and air flow within the frame (9).
  • a variant of the plant (100) is shown, which optionally also comprises:
  • the technical water/sanitary water heat exchanger (59) and the additional three-way valve (58) allow for the heating of sanitary water.
  • the additional three-way valve (58) is designed to divert the flow of technical water, heated through the combustion cell (1), directly to the supply section of the technical water plant or to the technical water/sanitary water exchanger (59) to heat the sanitary water of the sanitary water circuit.
  • the frame (9) of the plant may comprise two openings that are not in communication with each other, comprising a first opening for the exit of the air-fumes flow from the plant and a second opening designed to allow the entry of external air in the frame of the plant.
  • the frame (9) of the plant comprises at most two openings to separately allow the entry of external air into the frame of the plant and the exit of fumes from the plant.
  • the air-fumes flow exiting is isolated from the incoming external air flow into the frame (9) of the plant.
  • the burner is located outside the chamber of the combustion cell housing the water/fumes exchanger.
  • the burner is in communication with the chamber of the combustion cell to allow the passage of fumes from the burner to the chamber of the combustion cell.
  • the chamber of the combustion cell housing the water/fumes exchanger and the chamber of the heat exchanger housing the evaporator are formed within a single two-stage component.
  • the burner is also arranged within this component, in the chamber of the combustion cell.
  • the burner is positioned outside this component, in communication with the chamber of the combustion cell.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Claims (13)

  1. Installation thermique hybride (100) comprenant :
    - un châssis (9) ;
    - une cellule de combustion (1), disposée à l'intérieur du châssis (9) ;
    - un échangeur de chaleur (2), disposé à l'intérieur du châssis (9) ;
    - un circuit d'eau technique (5) disposé à l'intérieur du châssis (9) et conçu pour être raccordé à une installation d'eau technique ;
    - un compresseur (3), disposé à l'intérieur du châssis (9) et raccordé à l'échangeur de chaleur (2) ;
    - un échangeur gaz/eau (4), disposé à l'intérieur du châssis (9) et raccordé au compresseur (3), à l'échangeur de chaleur (2) et au circuit d'eau technique (5) ;
    dans laquelle ladite cellule de combustion (1) comprend :
    - un brûleur (12) conçu pour enflammer une combustion d'air extérieur et de gaz, générant des fumées à haute température ;
    - une première entrée (12c) pour l'entrée d'air extérieur ;
    - une deuxième entrée (12d) destinée à être raccordée à une installation de gaz pour l'entrée de gaz ;
    - une chambre (11) pour contenir les fumées générées par le brûleur (12) ;
    - un échangeur eau/fumées (15) disposé dans la chambre (11) de la cellule de combustion, de sorte que l'échangeur eau/fumées (15) est entouré extérieurement par les fumées générées par le brûleur (12) ; ledit échangeur eau/fumées (15) étant raccordé au circuit d'eau technique (5), de sorte que l'échangeur eau/fumées (15) est traversé par l'eau provenant du circuit d'eau technique (5) ;
    ledit échangeur de chaleur (2) comprenant :
    - un évaporateur (22) disposé dans une chambre (21) de l'échangeur de chaleur ; ledit évaporateur (22) étant relié au compresseur (3) et à l'échangeur gaz/eau (4) et étant conçu pour être traversé par un gaz réfrigérant ;
    - une première entrée (23) pour l'entrée d'air extérieur dans la chambre (21) de l'échangeur de chaleur ;
    où ladite chambre (11) de la cellule de combustion et ladite chambre (21) de l'échangeur de chaleur sont en communication fluidique l'une avec l'autre, de sorte que les fumées générées par le brûleur (12) entourent à la fois l'échangeur eau/fumées (15) et l'évaporateur (22) de l'échangeur de chaleur ; ledit échangeur de chaleur (2) comprenant une sortie (24) pour l'évacuation d'un flux d'air-fumées de la chambre (21) de l'échangeur de chaleur ; ledit châssis (9) de l'installation comprenant au moins une ouverture (92) conçue pour permettre séparément l'entrée d'air extérieur dans le châssis (9) de l'installation et la sortie du flux d'air-fumées de l'installation (100) ;
    ladite installation (100) comprenant :
    - un distributeur d'air (7) disposé dans le châssis (9) ;
    - un ventilateur (6) disposé dans le châssis (9) en amont dudit distributeur d'air (7), de sorte que ledit ventilateur (6) est configuré pour aspirer de l'air extérieur et acheminer ledit air extérieur à l'intérieur du distributeur d'air (7) ; ledit ventilateur (6) étant un ventilateur unique ;
    ledit distributeur d'air (7) étant en communication fluidique avec le ventilateur (6), la première entrée (12c) de la cellule de combustion, et caractérisé par le fait que ledit distributeur d'air est en outre en communication fluidique avec la première entrée (23) de l'échangeur de chaleur, de sorte que le distributeur d'air (7) est configuré pour recevoir l'air extérieur provenant du ventilateur (6) et distribuer ledit air extérieur à la fois à la cellule de combustion (1) et à l'échangeur de chaleur (2) ; ledit distributeur d'air (7) comprenant :
    - une entrée (70) reliée au ventilateur (6) pour l'entrée d'air extérieur dans le distributeur d'air (7) ;
    - un premier conduit (71a) se terminant par une première sortie (71) reliée à la première entrée (12c) de la cellule de combustion ;
    - un deuxième conduit (72a) se terminant par une deuxième sortie (72) reliée à la première entrée (23) de l'échangeur de chaleur ;
    ledit premier conduit (71a) du distributeur d'air ayant une section plus petite que la section du deuxième conduit (72a) du distributeur d'air.
  2. Installation (100) selon la revendication 1, où le rapport entre la largeur de la section du premier conduit (71a) du distributeur d'air et celle du deuxième conduit (72a) du distributeur d'air est d'au moins 1:10.
  3. Installation (100) selon la revendication 1 ou 2, où la deuxième sortie (72) du distributeur d'air (7) est reliée à la première entrée (23) de l'échangeur de chaleur par un deuxième canal de raccordement (94) de l'installation, afin de permettre à l'air extérieur de s'écouler du distributeur d'air (7) vers l'échangeur de chaleur (2).
  4. Installation (100) selon l'une des revendications 1 à 3, où le distributeur d'air (7) est de type mécanique à étranglement constant ; ledit premier conduit (71a) du distributeur d'air et le deuxième conduit (72a) du distributeur d'air ayant des axes inclinés l'un par rapport à l'autre et inclinés par rapport à un axe de l'entrée (70) du distributeur d'air.
  5. Installation (100) selon l'une des revendications 1 à 3, où le distributeur d'air (7) est de type mécanique à étranglement constant et ledit premier conduit (71a) du distributeur d'air bifurque à partir du deuxième conduit (72a) du distributeur d'air ; ledit premier conduit (71a) du distributeur d'air et ledit deuxième conduit (72a) du distributeur d'air ayant des axes perpendiculaires l'un par rapport à l'autre, et l'axe du deuxième conduit (72a) du distributeur d'air étant coaxial à l'entrée (70) du distributeur d'air.
  6. Installation (100) selon l'une des revendications 1 à 3, où ledit distributeur d'air (7) est de type mécanique à géométrie variable, comprenant une soupape de régulation mécanique (75) disposée sur la première sortie (71) du distributeur d'air.
  7. Installation (100) selon la revendication 6, où le distributeur d'air (7) comprend une soupape de régulation mécanique sur la deuxième sortie du distributeur d'air.
  8. Installation (100) selon l'une des revendications 1 à 3, où ledit distributeur d'air (7) est de type à commande électrique/électronique, comprenant une soupape de régulation à commande électrique/électronique (76) dans le premier conduit (71a) du distributeur d'air.
  9. Installation (100) selon la revendication 8, où le distributeur d'air (7) comprend une vanne de régulation à commande électrique/électronique dans le deuxième conduit du distributeur d'air.
  10. Installation (100) selon l'une des revendications précédentes, où la cellule de combustion (1) comprend une sortie (16) pour l'évacuation des fumées de la chambre (11) de la cellule de combustion et l'échangeur de chaleur (2) comprend une deuxième entrée (26) pour l'entrée des fumées dans la chambre (21) de l'échangeur de chaleur; ladite installation (100) comprenant un premier canal de raccordement (90) relié à la sortie (16) de la cellule de combustion et à la deuxième entrée (26) de l'échangeur de chaleur pour le passage des fumées de la chambre (11) de la cellule de combustion vers la chambre (21) de l'échangeur de chaleur.
  11. Installation (100) selon l'une des revendications précédentes, où une vanne à trois voies (44) est disposée dans la première section (50) du circuit d'eau technique, en aval de l'échangeur gaz/eau (4) et en amont de l'échangeur eau/fumées (15) de la cellule de combustion ; ladite vanne à trois voies (44) étant raccordée à l'entrée à l'échangeur gaz/eau (4) et à la sortie à l'échangeur eau/fumées (15) et à la deuxième section (51) du circuit d'eau technique.
  12. Installation (100) selon l'une des revendications précédentes, où ladite installation (100) comprend un seul canal de sortie (91) relié à la sortie (24) de l'échangeur de chaleur pour l'évacuation du flux d'air-fumées de l'installation (100).
  13. Installation (100) selon la revendication 12, où le canal de sortie (91) de l'installation passe à travers l'ouverture (92) du châssis de l'installation (100) ; ledit canal de sortie (91) de l'installation ayant une taille inférieure à celle de l'ouverture (92) du châssis de l'installation, de sorte qu'il existe un espace entre les bords de ladite ouverture (92) et ledit canal de sortie (91) pour permettre l'entrée d'air dans le châssis (9) de l'installation depuis l'extérieur.
EP25157324.2A 2024-02-16 2025-02-12 Installation thermique hybride pour le chauffage de l'eau Active EP4603760B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT102024000003388A IT202400003388A1 (it) 2024-02-16 2024-02-16 Impianto termico ibrido per il riscaldamento di acqua

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EP4603760A1 EP4603760A1 (fr) 2025-08-20
EP4603760B1 true EP4603760B1 (fr) 2026-03-18

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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2547027B1 (fr) * 1983-05-31 1985-09-06 Gouyou Beauchamps Jacques Pompe a chaleur avec appoint au gaz
ITBO20120458A1 (it) * 2012-08-29 2014-03-01 Gas Point S R L Apparecchiatura di riscaldamento comprendente una caldaia a condensazione ed una pompa di calore
IT201700015408A1 (it) * 2017-02-13 2018-08-13 Gas Point S R L Apparecchiatura di riscaldamento ad alta efficienza
ES2987247T3 (es) * 2021-03-12 2024-11-14 Immergas Spa Sistema combinado y proceso para calentar un circuito principal de agua

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