EP2947398B1 - Wasserboiler, der einen oder mehrere thermoelektrische generatoren umfasst - Google Patents

Wasserboiler, der einen oder mehrere thermoelektrische generatoren umfasst Download PDF

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Publication number
EP2947398B1
EP2947398B1 EP15166357.2A EP15166357A EP2947398B1 EP 2947398 B1 EP2947398 B1 EP 2947398B1 EP 15166357 A EP15166357 A EP 15166357A EP 2947398 B1 EP2947398 B1 EP 2947398B1
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EP
European Patent Office
Prior art keywords
water heater
wall
water
thermoelectric generators
inner tank
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EP15166357.2A
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English (en)
French (fr)
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EP2947398A1 (de
Inventor
Yves Bony
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Atlantic Industrie SAS
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Atlantic Industrie SAS
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Priority to PL15166357T priority Critical patent/PL2947398T3/pl
Publication of EP2947398A1 publication Critical patent/EP2947398A1/de
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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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18—Water-storage heaters
    • F24H1/20—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes
    • F24H1/201—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply
    • F24H1/202—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes using electric energy supply with resistances
    • 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
    • F24D18/00—Small-scale combined heat and power [CHP] generation systems specially adapted for domestic heating, space heating or domestic hot-water supply
    • 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
    • F24H9/00—Details
    • F24H9/40—Arrangements for preventing corrosion
    • F24H9/45—Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means
    • 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
    • F24H9/00—Details
    • F24H9/40—Arrangements for preventing corrosion
    • F24H9/45—Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means
    • F24H9/455—Arrangements for preventing corrosion for preventing galvanic corrosion, e.g. cathodic or electrolytic means for water heaters
    • 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
    • F24D2101/00—Electric generators of small-scale CHP systems
    • F24D2101/60—Thermoelectric generators, e.g. Peltier or Seebeck elements
    • 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
    • F24D2103/00—Thermal aspects of small-scale CHP systems
    • F24D2103/10—Small-scale CHP systems characterised by their heat recovery units
    • F24D2103/17—Storage tanks
    • 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
    • F24D2105/00—Constructional aspects of small-scale CHP systems
    • 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
    • F24H2250/00—Electrical heat generating means
    • F24H2250/06—Peltier

Definitions

  • the present invention relates to the field of energy recovery, for water heaters, and relates more particularly to a water heater comprising one or more thermoelectric generators, capable in particular of supplying an anodic protection means.
  • a water heater In normal operation, a water heater produces domestic hot water (DHW) by heating, by means of a built-in heating device, water in the tank of the water heater.
  • DHW domestic hot water
  • the heater operates during off-peak hours and is switched off during peak hours (unless there is a need for hot water). So there is cold water on one side and an active power source on off-peak hours and on the other side hot water and an idle power source during peak hours.
  • a first solution is the sacrificial magnesium anode, placed in the tank of the water heater, and which dissolves slowly in the tank.
  • This first solution does not require any power supply, but on the other hand its life much lower than that of a water heater necessitates its replacement by a specialized after-sales service.
  • its performance is not homogeneous (the sacrificial magnesium anode being less effective end of life) and it is difficult for the user to know exactly when it is necessary to change it.
  • Another solution is to generate current in the tank by an independent electric battery attached to the tank.
  • This solution has the disadvantage of slightly increasing the overall volume of the water heater, the volume of the battery increasing with the desired protection time.
  • the number of charging / discharging cycles of the battery being limited, it is necessary to change the battery during the life of the water heater. It is also necessary to provide a suitable compartment within the water heater to receive the battery.
  • the performances are heterogeneous between the beginning and the end of the life of the battery.
  • Cigar utility model demand CN202303960 discloses a self-generating high efficiency water heating device which comprises a thermoelectric cell element disposed on an inner wall of a connection collection pipe near a water outlet, the thermoelectric cell element generating a thermo-electromotive force to control a water pump that adjusts the speed of the water flow in the connection collection pipe by temperature difference between the water in the pipe and the air outside the pipe.
  • this device is adapted to be installed on a pipe that heats water but is not suitable for installation inside a domestic water heater tank.
  • this device does not include anodic protection means and therefore does not protect the tank of a water heater against corrosion.
  • the present invention aims to solve the drawbacks of the prior art by proposing a water heater comprising one or more thermoelectric generators capable in particular of independently feeding an anodic protection means to protect the tank of the heater. water against corrosion, the thermoelectric generator or generators being disposed inside the water heater between the inner vessel and the metal wall of the water heater and allowing to generate a current without any connection to a power supply by difference temperature between the inner vessel and the outer metal wall of the water heater, thereby generating power autonomously by recovering a thermal energy without increasing the dimensions of the water heater.
  • the present invention also makes it possible to supply power to an anticorrosive anode, for example made of titanium, disposed inside the internal tank of the water heater via the thermoelectric generator or generators, thus making it possible to supply an electrical energy of corrosion-resistant anode protection at peak times, to save power from a grid power supply and to achieve homogeneous performance of the anode protection of the water heater tank over the life of the heater water.
  • an anticorrosive anode for example made of titanium
  • the present invention also makes it possible to dispense with the replacement or maintenance of the anode protection in the tank of the water heater, the service life of the thermoelectric generator and anode assembly. corrosion resistant titanium being greater than or equal to the service life of the water heater.
  • the present invention therefore relates to a water heater, comprising an inner vessel adapted to contain a volume of water to be heated, said volume of water being heated by a heating means disposed inside the inner vessel to heat the water, said inner vessel being further wrapped with an insulator itself wrapped with a metal cladding wall, characterized in that it comprises one or more thermoelectric generators, each comprising a hot side, a side cold and electrical connection means, arranged inside the water heater between the inner vessel and the metal cladding wall, the hot side of the thermoelectric generator or generators being disposed against the outer wall of the inner vessel and the side cold or thermoelectric generators being configured to be in thermal contact with a cold source, the electrical connection means of the thermoelectric generator (s) etan t connected to one or more loads consuming the current generated by the thermoelectric generator (s).
  • thermoelectric generator or generators make it possible to generate one or more autonomous voltage / current sources via a temperature difference between the external wall of the internal tank of the water heater and the cold source, the source or sources. of autonomous current / voltage being connected to one or more loads disposed inside or outside the water heater.
  • thermoelectric generator or generators being integrated in the water heater (that is to say, arranged between the inner vessel and metal cladding wall), the dimensions of the water heater remain unchanged.
  • the water heater according to the present invention makes it possible to supply power to one or more charges without these being connected to an electrical source of the network or battery type, thereby enabling energy savings and the realization of an insulation. functional electric compared to the electrical network.
  • thermoelectric generator (s) are located.
  • the cold source is a heat sink having a part in thermal contact with the cold side of the thermoelectric generator (s) and a part in thermal contact with the metal cladding wall, in order to create a flow heat sink in the heat sink between a hot part formed by the part in contact with the thermoelectric generator (s) and a cold part constituted by the part in contact with the metal cladding wall.
  • thermoelectric generator or generators is in thermal contact with the metal cladding wall which is substantially at ambient temperature, which makes it possible to create a greater temperature difference between the hot and cold sides of the generator (s). thermoelectric and thus provide more current to the loads.
  • thermoelectric generator in order to increase the thermal contact between the heat sink and the thermoelectric generator or generators and the metal cladding wall, a thermal paste that promotes heat flow by virtue of its good thermal conductivity can be arranged between the heat sink and the thermoelectric generator (s) and between the heat sink and the cladding metal wall.
  • the heat sink is a radiator, in particular a finned radiator.
  • the efficiency of the heat sink is improved through the fins of the radiator, the fins to increase the contact surface of the radiator with the ambient air.
  • the radiator is preferably made of a metal having good thermal conduction properties, the metal being, for example, aluminum.
  • the cold source is the metal cladding wall stamped so that it is in thermal contact with the cold side of each thermoelectric generator, the cladding metal wall being substantially at room temperature .
  • thermoelectric generator or generators are directly in thermal contact with the metal cladding wall which is substantially at ambient temperature, which makes it possible to dispense with the cost and the installation of the heat sink on the thermoelectric generator, the extruded profile finned radiators being relatively expensive.
  • thermoelectric generator s
  • cladding wall may be disposed between the cold side of the thermoelectric generator (s) and the cladding wall to increase thermal contact therebetween.
  • the water heater further comprises an aluminum interface strip disposed between the cold side of each thermoelectric generator and the metal cladding wall in order to improve the heat transfer.
  • thermoelectric generator or generators are arranged on the hottest part of the external wall of the internal tank at the end of a complete heating cycle of the volume of water in the internal tank, the complete heating cycle of the volume of water in the inner vessel being the cycle necessary for the heating means to heat to a desired minimum temperature the entire volume of water in the inner vessel (without hot water draw until the minimum temperature is reached).
  • the hottest part of the inner tank is the highest part of the inner tank, that is to say the part where the hot water is the longest present in the inner tank .
  • thermoelectric generator (s) the temperature difference between the hot and cold sides of the thermoelectric generator (s) is greater, which makes it possible to obtain a power delivered by the thermoelectric generator (s) towards the greater load (s).
  • thermoelectric generator the temperature difference between the hot and cold sides of the thermoelectric generator (s) persists for a longer time, until all the hot water present in the water heater is withdrawn, if the thermoelectric generator or generators are arranged at the same level. from the highest part of the inner tank.
  • the water heater comprises several thermoelectric generators arranged on the same isotherm on the outer wall of the inner vessel or on different isotherms on the outer wall of the inner vessel, at least one said thermoelectric generators being preferably disposed on the higher isotherm temperature at the end of the cycle of complete heating of the volume of water in the inner vessel, an isotherm being a line on the outer wall of the inner vessel connecting all the points of the outer wall of the inner vessel at the same temperature.
  • thermoelectric generators can all be arranged on the same isotherm, preferably the isotherm having the highest temperature to provide a maximum current, that is to say the highest isotherm on the inner vessel, or the thermoelectric generators can be arranged at different heights on the inner vessel to, for example, be closer to their respective loads: a load consuming more current will be connected to a thermoelectric generator on an isotherm of higher temperature than a load consuming less current, which can be connected to a thermoelectric generator on a lower temperature isotherm.
  • the isotherms in traditional water heaters where the temperature gradient is vertical, correspond to the same height on the tank. Each isotherm corresponds to a height of the tank.
  • thermoelectric generators can signal the level of hot water in the inner vessel, the presence of a voltage at the output of a thermoelectric generator indicating that the water is hot at the height where the thermoelectric generator is located and the absence of a voltage at the output of a thermoelectric generator indicating that the water is cold at the height where the thermoelectric generator.
  • the water heater further comprises an electronic card for processing the current generated by the thermoelectric generator (s) to supply the charge (s).
  • the electronic card can be used to process the power generated by the thermoelectric generator (s) in order to put said generated power in a desired form and then deliver it to one or more loads.
  • the electronic card comprises a DC-DC voltage booster and optionally a pulse generator.
  • the electronic card can be used to raise the voltage of the thermoelectric generator (s), and / or chop the current with an adequate duty cycle (by creating high voltage pulses) so that the size and thus the cost of the generator (s) thermoelectric properties are minimal.
  • the charge or loads connected to the thermoelectric generator or generators are one or more of a corrosion protection device in the inner vessel, a control device, a display device (for example, a light or a display) and a communication device.
  • the corrosion protection device protects the inner tank of the water heater full of hot liquid against corrosion with an autonomous power supply generated by the thermoelectric generator or generators, no connection to an electrical network or a battery to the limited shelf life necessary to supply power to the corrosion protection device.
  • thermoelectric generators can power one or more other devices autonomously, for example, to light a light or a display on the water heater or to transmit by radio frequency (RF) information about the water heater (filling level, liquid temperature, pressure ...) to a remote display, no connection to a power grid or a battery with limited life is necessary to power these devices.
  • RF radio frequency
  • an accumulator or supercapacity could be used to temporarily power the corrosion protection device and / or one or more other devices in order to compensate for short calls of strong current, without departing of the scope of the present invention.
  • the corrosion protection device is an anticorrosion anode, the anticorrosion anode preferably being of titanium.
  • anticorrosion anode could also be steel, cast iron, graphite, metal oxides or platinum, or other metal, without departing from the scope of the present invention.
  • the anticorrosion anode is disposed at the highest part of the inner tank of the water heater, near the thermoelectric generator or generators.
  • thermoelectric generators can be associated to obtain the voltage and current required for the size of the inner tank of the water heater to be protected.
  • the water heater 1 comprises an inner vessel 2 adapted to contain a volume of water 3 being heated by a heating means 4 disposed inside the inner vessel 2 to heat the water, said inner vessel 2 being furthermore wrapped with an insulator 5 itself wrapped with a metal cladding wall 6.
  • the inner vessel 2 is, without limitation, of cylindrical shape with two ends in the longitudinal direction in the form of cap and is sealed, the height of the inner vessel 2 promoting the formation of stable water layers of different temperatures.
  • the inner vessel 2 could also be of parallelepipedal shape, without departing from the scope of the present invention.
  • the inner vessel 2 is made of metal such as steel but could also be plastic.
  • the insulation 5 is an insulating foam such as polyurethane enveloping the entire outer wall of the inner vessel 2.
  • insulation 5 could also be expanded polystyrene, without departing from the scope of the present invention.
  • the thickness of the insulator 5 is preferably between 20 mm and 60 mm, in order to obtain an effective thermal insulation.
  • the cladding metal wall 6 surrounding the insulator 5 has substantially the same shape as the inner tank 2 of the water heater 1 and is also sealed substantially sealingly.
  • the cladding metal wall 6 is made of metal such as painted steel.
  • the water heater 1 also comprises a cold water supply pipe 7 and a hot water outlet pipe 8, the cold water supply pipe 7 and the hot water outlet pipe 8 penetrating into the water pipe.
  • the inner tank 2 of the water heater 1 through respectively two holes 9, 10 formed in the lower wall of the metal cladding wall 6, the lower layer of the insulator 5 and the bottom wall of the inner vessel 2.
  • the inlet end 11 of the hot water outlet pipe 8 is located at the upper part of the inner vessel 2 and the outlet end 12 of the cold water supply pipe 7 is located at the lower part of the inner vessel 2.
  • the heating means 4 consists of a heating resistor 4a disposed at the lower part of the inner vessel 2, near the outlet end 12 of the cold water supply pipe 7, and penetrating into the the inner vessel 2 through a hole 13 formed in the lower wall of the metal cladding wall 6, the lower layer of the insulator 5 and the lower wall of the inner vessel 2, and a feed 4b electrical connected to the heating resistor 4a and disposed under the lower wall of the cladding metal wall 6, the power supply 4b is connected to a domestic electrical network.
  • the heating resistor 4a of the heating means 4 is preferably a steatite resistance, but can also be a shielded heating body directly in contact with the water.
  • the water heater 1 further comprises a thermoelectric generator 14 disposed between the outer wall of the inner vessel 2 and the metal cladding wall 6, the water heater 1 having no insulator 5 at the location of the thermoelectric generator. 14.
  • thermoelectric generator 14 has a hot side 14a, a cold side 14b and electrical connection means 14c.
  • the water heater 1 also comprises a heat sink 15 which is a finned radiator and which is arranged between the thermoelectric generator 14 and the metal cladding wall 6, the water heater 1 having no insulation 5 to the location of heat sink 15.
  • a heat sink 15 which is a finned radiator and which is arranged between the thermoelectric generator 14 and the metal cladding wall 6, the water heater 1 having no insulation 5 to the location of heat sink 15.
  • heat sink 15 could also be a sheet aluminum interface strip or a cold water circulation tube, without departing from the scope of the present invention.
  • the hot side 14a of the thermoelectric generator 14 is disposed against the outer wall of the inner vessel 2, at the upper part of the inner vessel 2 which is the hottest part of the outer wall of the inner vessel 2 at the end. a complete heating cycle of the volume of water 3 in the inner vessel 2, the complete heating cycle of the volume of water 3 in the inner vessel 2 being the cycle necessary for the heating means 4 to heat to a temperature the minimum desired total water volume 3 in the inner vessel 2, without drawing hot water until the minimum temperature is reached.
  • the heat sink 15 has a portion in thermal contact with the cold side 14b of the thermoelectric generator 14 and a portion in thermal contact with the metal cladding wall 6, in order to create a heat flux in the heat sink 15 between a hot part constituted by the part in contact with the thermoelectric generator 14 and a cold part constituted by the part in contact with the cladding metal wall 6, the cladding metal wall 6 being substantially at the ambient temperature of the room where the heater is located water 1.
  • the water heater 1 could comprise several thermoelectric generators 14, arranged on the same isotherm (that is to say, a line on the outer wall of the inner vessel 2 connecting all the points of the outer wall of the inner vessel 2 at the same temperature) on the outer wall of the inner vessel 2 or on different isotherms on the outer wall of the inner vessel 2, at least one of said thermoelectric generators 14 being preferably disposed on the isotherm of higher temperature at the end of the complete heating cycle of the volume of water 3 in the inner vessel 2, without departing from the scope of the present invention.
  • the water heater 1 could comprise a heat sink 15 for all the thermoelectric generators 14 or several heat sinks 15 respectively for each thermoelectric generator 14.
  • thermoelectric generator 14 By temperature difference between the outer wall of the inner vessel 2 and the isotherm on which the thermoelectric generator 14 and the metal cladding wall 6 are located, the thermoelectric generator 14 generates a current, the current being conveyed to a load consuming it through the electrical connection means 14c of the thermoelectric generator 14 which connect said load to the thermoelectric generator 14.
  • the water heater 1 further comprises an anticorrosive titanium anode 16 as a corrosion protection device in the inner vessel 2, the anticorrosion titanium anode 16 being disposed inside the inner vessel 2, in the upper part of the inner vessel 2, near the thermoelectric generator 14, and being connected to the thermoelectric generator 14 via the electrical connection means 14c of the thermoelectric generator 14, the electrical connection means 14c passing through a hole 17 formed in a sealed manner in the inner vessel 2 in order to connect the anticorrosive titanium anode 16 to the thermoelectric generator 14.
  • an anticorrosive titanium anode 16 as a corrosion protection device in the inner vessel 2
  • the anticorrosion titanium anode 16 being disposed inside the inner vessel 2, in the upper part of the inner vessel 2, near the thermoelectric generator 14, and being connected to the thermoelectric generator 14 via the electrical connection means 14c of the thermoelectric generator 14, the electrical connection means 14c passing through a hole 17 formed in a sealed manner in the inner vessel 2 in order to connect the anticorrosive titanium anode 16 to the thermoelectric generator 14.
  • thermoelectric generator 14 a current is generated between the anticorrosive titanium anode 16 and the inner tank 2 of the water heater 1 in order to protect the internal tank 2 from corrosion via the thermoelectric generator 14, this solution being almost indestructible and without maintenance, unlike a sacrificial anode.
  • anticorrosive anode 16 could also be made of a material different from titanium, such as, for example, steel, cast iron, graphite, metal oxides or platinum, or another metal, without depart from the scope of the present invention.
  • a display device such as a light or a display and / or to a communication device
  • RF radio frequency
  • thermoelectric generator 14 of the water heater 1 it can be seen that there is shown the part comprising the thermoelectric generator 14 of the water heater 1 according to the first embodiment of the present invention.
  • thermoelectric generator 14 comprises a hot side 14a, a cold side 14b and electrical connection means 14c, and is arranged between the inner vessel 2 and the metal cladding wall 6 of the water heater 1 the hot side 14a of the thermoelectric generator 14 being disposed against the outer wall of the inner vessel 2.
  • the heat sink 15 which is a finned radiator, is disposed between the thermoelectric generator 14 and the metal cladding wall 6.
  • the portion of the water heater 1, between the inner vessel 2 and the cladding metal wall 6, comprising the thermoelectric generator 14 and the heat sink 15 does not include insulation 5.
  • the heat sink 15 which is a finned radiator, has a portion in thermal contact with the cold side 14b of the thermoelectric generator 14 and a portion 18 in thermal contact with the metal cladding wall 6, a thermal paste 19 being disposed between the heat sink 15 and the cold side 14b of the thermoelectric generator 14 and between the heat sink 15 and the cladding metal wall 6 to increase the thermal contact therebetween.
  • a thermal paste 19 is also to be disposed between the outer wall of the inner vessel 2 and the hot side 14a of the thermoelectric generator 14.
  • the thermal paste may be, for example, a contact grease of the registered trademark DOW CORNING type 340 Heat Sink Compound.
  • the heat sink 15 further comprises a plurality of fins 20 arranged in parallel from the portion of the heat sink 15 in thermal contact with the cold side 14b of the thermoelectric generator 14 towards the metal cladding wall 6, making it possible to increase the surface of the heat sink. heat sink 15 thermal contact with the ambient air, thereby improving the efficiency of the heat sink 15.
  • the finned radiator is preferably made of a metal having good thermal conduction properties, the metal being, for example, anodized aluminum.
  • thermoelectric generator 14 of a water heater 1 it can be seen that there is shown the part comprising the thermoelectric generator 14 of a water heater 1 according to a second embodiment of the present invention.
  • the water heater 1 has no heat sink 15 and the cold side 14b of the thermoelectric generator 14 is directly in thermal contact with the metal cladding wall 6, the cladding metal wall 6 being pressed at the location of the thermoelectric generator 14 to come into contact with the cold side 14b of the thermoelectric generator 14, the wall cladding metal 6 being substantially at room temperature.
  • a thermal paste 19 is disposed between the cold side 14b of the thermoelectric generator 14 and the embossed metal cladding wall 6 in order to increase the thermal contact therebetween.
  • thermoelectric generator set a thermoelectric generator set, electronic card and anticorrosive titanium anode according to the present invention.
  • the water heater 1 may also comprise an electronic card 21 for processing the current generated by the thermoelectric generator 14 for supplying the anticorrosion titanium anode 16, the electronic card 21 being disposed near the thermoelectric generator 14 between the inner tank 2 and the metal cladding wall 6 of the water heater 1 or in a clipped plastic case.
  • the electronic card 21 comprises a DC-DC voltage booster 22 and a pulse generator 23, the DC-DC voltage booster 22 making it possible to raise the voltage generated by the thermoelectric generator 14 and the pulse generator 23 enabling then chopping the current with an adequate duty cycle (by creating high voltage pulses) to minimize the size and therefore the cost of the thermoelectric generator 14, the anti-corrosion titanium anode 16 needing to receive pulses of strong tension in order to be effective.
  • thermoelectric generator 14 The voltage generated by the thermoelectric generator 14 is injected at the input of the DC-DC voltage booster 22 of the electronic card 21, the high voltage at the output of the voltage booster continuous-DC 22 is then injected at the input of the pulse generator 23 of the electronic card 21, then the high-voltage pulses at the output of the pulse generator 23 are injected at the inlet of the titanium anode anticorrosion 16 to protect the inner tank 2 of the water heater 1 against corrosion.
  • the voltage at the output of the thermoelectric generator 14 is equal to 350 mV
  • the voltage at the output of the DC-DC voltage booster 22 is 1.5 V
  • the voltage of the pulses at the output of the pulse generator 23 is 10 V.
  • the electronic card 21 of the water heater 1 could comprise only a DC-DC voltage booster 22, without departing from the scope of the present invention.
  • the electronic card 21 could comprise other electronic processing circuits such as Harvesting Integrated Circuits, without departing from the scope of this document. invention.
  • thermoelectric generators 14 each comprising an electronic card 21, each electronic card 21 being designed to deliver a voltage / current adapted to the consumption of the charge to which the thermoelectric generator is connected. 14 associate.
  • thermoelectric generators 14 could also be associated in order to obtain the voltage and the current necessary for the size the inner tank 2 of the water heater 1 to protect against corrosion.
  • the present invention can be applied by anyone wishing to protect a tank or metal container full of liquid against corrosion, or anyone who would like to light by a light (eg, illuminating red to indicate that the liquid is hot), or anyone who would like to transmit by radio frequency (RF) information specific to the container (filling level, liquid temperature, pressure %) towards for example a remote display, without any connection to a source of electricity type EDT network, battery, accumulator or battery.
  • RF radio frequency

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  • 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)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Claims (11)

  1. Boiler (1), der eine Innenwanne (2) umfasst, die ein zu erwärmendes Wasservolumen (3) enthalten kann, das von einem Erwärmungsmittel (4) erwärmt wird, das in der Innenwanne (2) angeordnet ist, um das Wasser zu erwärmen, wobei die Innenwanne (2) außerdem von einem Isolator (5) umhüllt ist, der seinerseits von einer Metallwand (6) umhüllt ist, gekennzeichnet dadurch, dass er einen oder mehrere thermoelektrische Generatoren (14) umfasst, mit jeweils einer warmen Seite (14a), einer kalten Seite (14b) und Mitteln für den elektrischen Anschluss (14c), die im Innern des Boilers (1) zwischen der Innenwanne (2) und der Metallwand (6) angeordnet sind, wobei die warme Seite (14a) des oder der thermoelektrischen Generatoren (14) gegen die Außenwand der Innenwanne (2) angeordnet ist und die kalte Seite (14b) des oder der thermoelektrischen Generatoren (14) gestaltet ist, um in thermischem Kontakt mit einer kalten Quelle zu stehen, wobei die Mittel für den elektrischen Anschluss (14c) des oder der thermoelektrischen Generatoren (14) mit einer oder mehreren Lasten verbunden ist, die den von dem oder den thermoelektrischen Generatoren (14) erzeugten Strom verbrauchen.
  2. Boiler (1) nach Anspruch 1, gekennzeichnet dadurch, dass der Boiler die kalte Quelle umfasst, die ein Kühlkörper (15) mit einem Teil in thermischem Kontakt mit der kalten Seite (14b) des oder der thermoelektrischen Generatoren (14) und einem Teil in thermischem Kontakt mit der Metallwand (6) ist, um einen Wärmestrom in dem Kühlkörper (15) zwischen einem warmen Teil, bestehend aus dem Teil in Kontakt mit der oder den thermoelektrischen Generatoren (14), und einem kalten Teil, bestehend aus dem Teil in Kontakt mit der Metallwand (6), zu schaffen.
  3. Boiler (1) nach Anspruch 2, gekennzeichnet dadurch, dass der Kühlkörper (15) ein Kühler ist, vor allem ein Rippenkühler.
  4. Boiler (1) nach Anspruch 1, gekennzeichnet dadurch, dass der Boiler besagte kalte Quelle umfasst, die die Metallwand (6) ist, die derart tiefgezogen ist, dass sie in thermischem Kontakt mit der kalten Seite (14b) jedes thermoelektrischen Generators steht (14), wobei die Metallwand (6) im wesentlichen Umgebungstemperatur aufweist.
  5. Boiler (1) nach Anspruch 4, gekennzeichnet dadurch, dass er außerdem ein Zwischenband aus Aluminium zwischen der kalten Seite (14d) jedes thermoelektrischen Generators (14) und der Metallwand (6) umfasst, um die Wärmeübertragung zu verbessern.
  6. Boiler (1) nach einem der Ansprüche 1 bis 5, gekennzeichnet dadurch, dass der oder die thermoelektrischen Generatoren (14) auf dem höchsten Teil der Außenwand der Innenwanne (2) angeordnet sind.
  7. Boiler (1) nach einem der Ansprüche 1 bis 5, gekennzeichnet dadurch, dass er mehrere thermoelektrische Generatoren umfasst (14), die in derselben Höhe an der Außenwand der Innenwanne (2) angeordnet sind oder in verschiedenen Höhen an der Außenwand der Innenwanne (2), wobei mindestens einer der genannten thermoelektrischen Generatoren (14) vorzugsweise im höchsten Teil der Außenwand der Innenwanne (2) angeordnet ist.
  8. Boiler (1) nach einem der Ansprüche 1 bis 7, gekennzeichnet dadurch, dass er außerdem eine elektronische Karte (21) zur Behandlung des von dem oder den thermoelektrischen Generatoren (14) erzeugten Stroms umfasst, um die Last(en) zu versorgen.
  9. Boiler (1) nach Anspruch 8, gekennzeichnet dadurch, dass die elektronische Karte (21) einen Gleichstrom/Gleichstrom-Spannungserhöher (22) und gegebenenfalls einen Impulsgenerator (23) umfasst.
  10. Boiler (1) nach einem der Ansprüche 1 bis 9, gekennzeichnet dadurch, dass die Last(en) eine oder mehrere der folgenden sind: eine Schutzvorrichtung gegen Korrosion in der Innenwanne (2), eine Steuervorrichtung, eine Anzeigevorrichtung (zum Beispiel eine Anzeige oder Anzeigeeinheit) und eine Kommunikationsvorrichtung.
  11. Boiler (1) nach Anspruch 10, gekennzeichnet dadurch, dass die Schutzvorrichtung gegen Korrosion eine Korrosionsschutzanode (16) ist, wobei die Korrosionsschutzanode (16) vorzugsweise aus Titan ist.
EP15166357.2A 2014-05-20 2015-05-05 Wasserboiler, der einen oder mehrere thermoelektrische generatoren umfasst Active EP2947398B1 (de)

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FR1454536A FR3021397B1 (fr) 2014-05-20 2014-05-20 Chauffe-eau comprenant un ou plusieurs generateurs thermoelectriques

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CN107581890B (zh) * 2017-09-25 2022-07-08 中山市斯乐得电器有限公司 一种智能式控制的节能型电饭煲
CN107726602B (zh) * 2017-10-24 2020-08-18 杭州九阳小家电有限公司 一种集气排放的电热水器
IT201900007587A1 (it) * 2019-05-30 2020-11-30 Luca Tomasini Sistema e metodo di produzione di acqua calda ibrido con pompa di calore statica
CN113251657A (zh) * 2020-02-12 2021-08-13 青岛海尔新能源电器有限公司 热泵热水器及其控制方法
CN211695424U (zh) * 2020-02-20 2020-10-16 芜湖美的厨卫电器制造有限公司 一种内胆结构以及储水式热水器

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PL2947398T3 (pl) 2017-07-31
PT2947398T (pt) 2017-06-02
FR3021397A1 (fr) 2015-11-27
ES2630808T3 (es) 2017-08-24
EP2947398A1 (de) 2015-11-25

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