EP3578902A1 - Wasserboiler, der mit einem sicherungssystem gegen aufheizen im leerzustand ausgestattet ist - Google Patents

Wasserboiler, der mit einem sicherungssystem gegen aufheizen im leerzustand ausgestattet ist Download PDF

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Publication number
EP3578902A1
EP3578902A1 EP19305628.0A EP19305628A EP3578902A1 EP 3578902 A1 EP3578902 A1 EP 3578902A1 EP 19305628 A EP19305628 A EP 19305628A EP 3578902 A1 EP3578902 A1 EP 3578902A1
Authority
EP
European Patent Office
Prior art keywords
water
water heater
tank
heater according
heating
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.)
Granted
Application number
EP19305628.0A
Other languages
English (en)
French (fr)
Other versions
EP3578902B1 (de
Inventor
Pascal MONTGERMONT
Matthieu Collet
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.)
Atlantic Industrie SAS
Original Assignee
Atlantic Industrie SAS
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 Atlantic Industrie SAS filed Critical Atlantic Industrie SAS
Publication of EP3578902A1 publication Critical patent/EP3578902A1/de
Application granted granted Critical
Publication of EP3578902B1 publication Critical patent/EP3578902B1/de
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
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
    • F24H9/2021—Storage 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
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/128—Preventing overheating
    • F24H15/132—Preventing the operation of water heaters with low water levels, e.g. dry-firing
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/355—Control of heat-generating means in heaters
    • F24H15/37—Control of heat-generating means in heaters of electric 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
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/395—Information to users, e.g. alarms
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00—Details of electric heating devices
    • H05B1/02—Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227—Applications
    • H05B1/0252—Domestic applications
    • H05B1/0275—Heating of spaces, e.g. rooms, wardrobes
    • H05B1/0283—For heating of fluids, e.g. water heaters

Definitions

  • the invention relates to a water heater with a dry anti-heat safety system.
  • a water heater contains a reservoir and a heating element for heating the water that is stored in said reservoir.
  • a heating element for heating the water that is stored in said reservoir.
  • no information is available from outside the water heater, to indicate that the tank is empty or no automatic system is blocking the operation. It is then possible to trigger a heating phase in the tank, while there is no water in it.
  • the consequences of such an event are that the heating element can deteriorate or even completely destroy or even damage the water heater more seriously.
  • a water heater according to the invention is provided with a dry anti-heat safety system to prevent the triggering of the heating element in the absence of water in the tank.
  • the invention relates to a water heater comprising a reservoir intended to contain water and a means for heating the water stored in said tank.
  • the water heater comprises a safety device capable of detecting the presence of water in the tank, and in that said device comprises an electric circuit provided with an energy source and a sensing element. the presence of water in the reservoir, the water present in the reservoir closing said circuit and activating said element.
  • the water present in the tank of the water heater allows to close, directly or indirectly, an electrical circuit comprising a detection element able to testify to the presence of water in said tank.
  • directly means that the water will be inserted into the electrical circuit to participate directly in the electrical flow thanks to its electrical conduction properties.
  • the expression “indirectly” means that the water will act, for example by gravity, on a component of the electrical circuit in order to close said circuit and allow electrical circulation therein.
  • the detection element of the circuit for detecting the presence of water in the tank may for example be constituted by a light or a sound device for the information of the user who can then proceed to a manual shutdown of the heater . It can also be constituted by a relay in connection with the heating element, and able to trigger or close the supply of the heating element to allow the heating of the water in the tank or not in the context of a automatic system.
  • the purpose of the safety device is to ensure the presence of water in the tank and to prevent the heating element from being activated dry, that is to say in the absence of water in the tank.
  • the electrical circuit used to detect the presence of water in the tank is compact and is located in contact with or in the immediate vicinity, preferably a few centimeters from the water tank. Since the water participates in the safety device, a lack of water in the tank inactivates said circuit.
  • the water is inserted into the electrical circuit and allows the passage of the current through its electrical conduction properties.
  • the term "inserts" means that the water will constitute an element of the electric circuit.
  • the water constitutes a conduction element of the electric current and is an integral part of the electrical circuit.
  • the circuit comprises a contactor, the water present in the tank activating said contactor by gravity.
  • the water will act by gravity on a contactor, which is an integral part of the electrical circuit, to close said electrical circuit.
  • the detection element is a warning element detectable from outside said water heater.
  • this warning element is triggered as soon as the heating element is activated and makes it possible to immediately ascertain the presence or absence of water in the reservoir.
  • the detection element is a light source.
  • This light source can be of any kind and may for example be constituted by a light indicator.
  • the detection element is a sound source.
  • the detection element drives a relay for supplying the heating means.
  • the heating element when one seeks to activate the heating element to heat water that would be present inside the tank, or nothing happens because there is no water in said tank, ie the heating element reacts by raising the temperature of the water present in the tank.
  • the heating means is a heating resistor.
  • a water heater according to the invention comprises an inner tube emerging towards the outside of the tank, the safety device being placed along said tube (3) outside the tank.
  • the tube is an inner tube to the tank for detecting a complete filling of said water tank, the safety device being for example placed under the tank at an outlet of said inner tube.
  • the emerging portion of the tube outside the reservoir may be straight, or comprise a plurality of rectilinear segments between them angles.
  • the dry anti-heat safety device is inserted into a support to be chosen from a sleeve or a dielectric connection.
  • a support makes it possible to isolate the electrical circuit from the outside, and thus to protect it from any external event which would be likely to degrade or damage it, protecting the user from an electrical contact.
  • a sleeve or such a dielectric connection is already present on existing water heaters.
  • a water heater according to the invention has the advantage of having a dry anti-heat safety device through the implementation of an electrical circuit, which is safe and reliable, while being compact. Indeed, the sources of error at said safety device are almost non-existent, and the heating element can be activated only in the presence of water in the tank. It also has the advantage of having a dry anti-heat safety device directly involving the water of the tank, greatly reducing the risk of activation of the heating element in the absence of water in the tank.
  • the FIGS. 1A, 1B and 1C describe a normal use of a water heater 1.
  • the water heater 1 schematically comprises a tank 2, an inner tube 3, a cold water inlet 4, a heating means 5, a dielectric connection or a standard sleeve 6 comprising the dry anti-heat safety system, and a hot water outlet 7.
  • the tank 2 is elongated and preferably extends in a vertical direction.
  • the cold water inlet 4 opens at a lower wall 10 of said tank 2.
  • the inner tube 3 has a diameter which is much smaller than the dimensions of the tank 2, and has a main segment 11 lower which is extended by a secondary segment 12 inclined upper.
  • the main segment 11 has a lower end passing through the bottom wall 10 of the tank 2 and which opens into the dielectric connection or the sleeve 6 placed under the tank 2, said main segment 11 having an upper end, extended by the secondary segment 12.
  • the hot water outlet 7 is located at the dielectric connector or the sleeve 6.
  • the tank 2 is supplied with cold water by the inlet 4 with cold water, until it is completely filled, as shown in FIG. Figure 1A .
  • the heating means 5 which may advantageously be represented by a heating resistor, is activated in order to heat the water present in the tank 2.
  • the water has a cold zone 8 and a hot zone 9 as shown in FIG. Figure 1B .
  • the hot water outlet 7 can then be opened according to the hot water supply needs of various equipment outside the water heater 1, such as the equipment of a kitchen or a bathroom.
  • a problem often encountered with this type of water heater 1 is that the tank 2 can be empty, at startup, following a deliberate emptying or leak, or for any other reason, and that it can There is no simple way to know the state of the tank 2, empty or full.
  • the heating means 5 can then be activated when there is no more water in the tank 2, with consequent deterioration of the water heater 1 or its heating means 5.
  • a water heater 1 is provided with a dry anti-heat safety device enabling the presence of water in the tank 2 to be detected.
  • dry anti-heat safety device is advantageously housed in the dielectric connector or the sleeve 6, placed under the tank 2 of the water heater 1.
  • a first preferred embodiment of a dry heating safety device 20 of a water heater 1 is manual and comprises an electric circuit 21 provided with a power source 22 for electric current that may preferentially be a battery, a warning light 23 and two separate terminals 24, 25, placing the circuit by default 21 in an open configuration.
  • the term "separated” means that there is no electrical connection between said two terminals 24, 25.
  • the inner tube 3 opens into the dielectric connection or the sleeve 6, at the two terminals 24, 25 separate from the electrical circuit 21
  • the term “manual” means that the user realizing that there is no water in the tank 2 will not trigger the heating element 5.
  • the indicator light 23 could be replaced by an audible warning means informing a user that the tank is filled with water.
  • the electrical circuit 21 of the safety device is open and no electric current flows in it.
  • the indicator light 23 indicates that there is no water in the tank 2 of the water heater 1. The user will be notified of the absence of water.
  • a second preferred embodiment of a safety device 30 of a water heater 1 is automatic and comprises an electric circuit 31 provided with a power source 32 electric current may preferentially be a battery, a relay 33 which is connected to the heating means 5, and two terminals 34, 35 separated, by default placing the electric circuit 31 in an open configuration.
  • the term "separated" means that there is no electrical connection between said two terminals 34, 35.
  • the inner tube 3 opens into the dielectric connection or the sleeve 6, at the two terminals 34, 35 separate from the electrical circuit 31 .
  • the electric circuit 31 of the safety device is open and no electric current flows in it.
  • the relay 33 remains inactive, and the heating means 5 can not be triggered.
  • a third preferred embodiment of a dry heat-resistant security device 40 of a water heater 1 is manual and comprises an electric circuit 41 having a power source 42 for electric current it may preferentially be a battery, a warning light 43 and a mobile electric contactor 44.
  • the electric switch 44 is disjoint from the electrical circuit 41, placing said electric circuit 41 in an open configuration.
  • the inner tube 3 opens into the dielectric connection or the sleeve 6, being separated from the electrical circuit 41 by the contactor 44.
  • term “manual" means that the user realizing that there is no water in the tank 2 will not trigger the heating element 5.
  • the light bright 43 could also be replaced by an audible warning means, informing a user that the tank is filled with water.
  • the electrical circuit 41 of the safety device is open and no electric current flows in it.
  • the indicator light 43 indicates that there is no water in the tank 2 of the water heater 1. The user will be notified of the absence of water.
  • a fourth preferred embodiment of a safety device 50 of a water heater 1 is automatic and comprises an electric circuit 51 provided with a power source 52 for electric current that may preferentially be a battery , a relay 53 which is connected to the heating means 5, and a movable electric switch 54.
  • the electric switch 54 is disjoint from the electric circuit 51, placing said electric circuit 51 in an open configuration.
  • the inner tube 3 opens into the dielectric connection or the sleeve 6, being separated from the electric circuit 51 by the contactor 54.
  • the electrical circuit 51 of the safety device is open and no electric current flows in it.
  • the relay 53 remains inactive, and the heating means 5 can not be triggered.

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)
  • Resistance Heating (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Control Of Resistance Heating (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
EP19305628.0A 2018-06-06 2019-05-16 Wasserboiler, der mit einem sicherungssystem gegen aufheizen im leerzustand ausgestattet ist Active EP3578902B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1854920A FR3082292B1 (fr) 2018-06-06 2018-06-06 Chauffe-eau dote d'un systeme de securite anti-chauffe a sec

Publications (2)

Publication Number Publication Date
EP3578902A1 true EP3578902A1 (de) 2019-12-11
EP3578902B1 EP3578902B1 (de) 2023-01-11

Family

ID=62816845

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19305628.0A Active EP3578902B1 (de) 2018-06-06 2019-05-16 Wasserboiler, der mit einem sicherungssystem gegen aufheizen im leerzustand ausgestattet ist

Country Status (6)

Country Link
EP (1) EP3578902B1 (de)
ES (1) ES2941309T3 (de)
FR (1) FR3082292B1 (de)
PL (1) PL3578902T3 (de)
PT (1) PT3578902T (de)
UA (1) UA126765C2 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2360124A1 (fr) * 1976-07-30 1978-02-24 Amiens Const Electro Mecan Procede de controle de commutation de la puissance de chauffage dans un appareil electrodomestique a programmateur et dispositif pour la mise en oeuvre dudit procede
JPS5661865U (de) * 1979-10-17 1981-05-26
JPS60219516A (ja) * 1984-04-16 1985-11-02 Matsushita Electric Ind Co Ltd 水位検知装置付風呂釜
EP0933602A1 (de) * 1998-01-26 1999-08-04 Atlantic Industrie Elektronische Verwaltungsanlage für elektrischen Warmwasserspeicher
DE10145575A1 (de) * 2001-09-15 2003-04-03 Electolux Haustechnik Gmbh Warmwasserspeicher

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2360124A1 (fr) * 1976-07-30 1978-02-24 Amiens Const Electro Mecan Procede de controle de commutation de la puissance de chauffage dans un appareil electrodomestique a programmateur et dispositif pour la mise en oeuvre dudit procede
JPS5661865U (de) * 1979-10-17 1981-05-26
JPS60219516A (ja) * 1984-04-16 1985-11-02 Matsushita Electric Ind Co Ltd 水位検知装置付風呂釜
EP0933602A1 (de) * 1998-01-26 1999-08-04 Atlantic Industrie Elektronische Verwaltungsanlage für elektrischen Warmwasserspeicher
DE10145575A1 (de) * 2001-09-15 2003-04-03 Electolux Haustechnik Gmbh Warmwasserspeicher

Also Published As

Publication number Publication date
PL3578902T3 (pl) 2023-05-29
EP3578902B1 (de) 2023-01-11
ES2941309T3 (es) 2023-05-19
FR3082292B1 (fr) 2020-05-08
RU2019115636A (ru) 2020-11-24
PT3578902T (pt) 2023-03-22
FR3082292A1 (fr) 2019-12-13
UA126765C2 (uk) 2023-02-01

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