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WO2025191458A1 - Dispositif de chauffage pour chauffer un liquide, en particulier de l'eau - Google Patents

Dispositif de chauffage pour chauffer un liquide, en particulier de l'eau

Info

Publication number
WO2025191458A1
WO2025191458A1 PCT/IB2025/052576 IB2025052576W WO2025191458A1 WO 2025191458 A1 WO2025191458 A1 WO 2025191458A1 IB 2025052576 W IB2025052576 W IB 2025052576W WO 2025191458 A1 WO2025191458 A1 WO 2025191458A1
Authority
WO
WIPO (PCT)
Prior art keywords
volume
liquid
pump
function
flow rate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/IB2025/052576
Other languages
English (en)
Inventor
Valentino CASAGRANDE
Christian Ceotta
Antonio DE MOLINER
Stefano Zanella
Federico ZOPPAS
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.)
IRCA SpA Industria Resistenze Corazzate e Affini
Original Assignee
IRCA SpA Industria Resistenze Corazzate e Affini
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 IRCA SpA Industria Resistenze Corazzate e Affini filed Critical IRCA SpA Industria Resistenze Corazzate e Affini
Publication of WO2025191458A1 publication Critical patent/WO2025191458A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • 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
    • F24H15/104—Inspection; Diagnosis; Trial operation
    • 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
    • F24H15/212—Temperature of the water
    • F24H15/219—Temperature of the water after heating
    • 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
    • F24H15/212—Temperature of the water
    • F24H15/223—Temperature of the water in the water storage tank
    • 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
    • F24H15/238—Flow rate
    • 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
    • F24H15/242—Pressure
    • 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
    • F24H15/246—Water level
    • F24H15/248—Water level of water storage tanks
    • 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
    • F24H15/269—Time, e.g. hour or date
    • 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
    • F24H15/305—Control of valves
    • F24H15/31—Control of valves of valves having only one inlet port and one outlet port, e.g. flow rate regulating valves
    • 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
    • F24H15/335—Control of pumps, e.g. on-off control
    • F24H15/34—Control of the speed of 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
    • 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
    • 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
    • F24H15/40—Control of fluid heaters characterised by the type of controllers
    • F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
    • F24H15/421—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data
    • 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
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/042—Temperature sensors
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/044—Flow sensors
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/046—Pressure sensors
    • 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
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/04—Sensors
    • F24D2220/048—Level sensors, e.g. water level sensors
    • 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
    • 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
    • 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
    • F24H9/2028—Continuous-flow heaters

Definitions

  • the present invention relates to the field of heating devices for heating a liquid, in particular water.
  • the invention relates to a heating device, such as a boiler or a flow through heater, for example, provided with means for detecting the quantity of liquid to be heated in a volume of the heating device.
  • a heating device such as a boiler or a flow through heater, for example, provided with means for detecting the quantity of liquid to be heated in a volume of the heating device.
  • the device is preferably configured to generate steam.
  • the invention also relates to a method for operating the device.
  • Devices for heating water such as boilers, for example, are often provided with a level sensor adapted to detect the level of water in a tank of the device fed by a pump. Detecting the water level in the tank is particularly important when the device is designed to generate steam. In fact, it is important that the water level remains within a predetermined range. The water level must be high enough to generate steam and must be below a predetermined level, so that there is enough empty space above the water level.
  • FTH flow through heater
  • the present invention achieves at least one of such objects, and other objects which will become apparent in light of the present description, by means of a device for heating a liquid, in particular water, comprising
  • - heating means adapted to heat the liquid
  • said measuring means comprise an electronic control unit; wherein a database is provided, in which there are stored data of reference flow rate of the pump as a function of the counter-pressure downstream of the pump, in particular wherein said data were obtained by means of preliminary experimental tests and/or data characteristic of the pump; wherein, while the pump is active for introducing liquid into the volume, the electronic control unit is configured to
  • the invention also relates to a method for operating a device according to claim
  • a device and a method according to the invention offer the possibility of controlling the pump according to said at least one first coefficient and/or of detecting a pump anomaly and/or calculating a time for performing a maintenance operation on the pump, according to said at least one first coefficient.
  • the device and the method offer the possibility of controlling the pump according to said at least one first coefficient so as to keep the quantity, in particular the mass, of liquid in said volume above a predetermined quantity, preferably within a predetermined range.
  • the invention also relates to a household appliance according to claim 15.
  • Figure 1 diagrammatically shows an example of device according to the invention
  • Figure 2 shows a graph of the temperature trend over time for four different quantities of liquid while it is heated
  • FIG. 3 diagrammatically shows another example of device according to the invention.
  • a device 1 for heating a liquid, in particular water, are described.
  • the device 1 is preferably configured to generate steam.
  • the device 1 comprises
  • a pump 6 for introducing liquid into the volume 20, for example by means of a duct 61 ;
  • said measuring means 40 comprise an electronic control unit 5;
  • a database 51 in particular electronic, is provided, in which there are stored data of reference flow rate Qr6 as a function of the counter-pressure downstream of the pump 6, in particular wherein said data were obtained by means of preliminary experimental tests and/or data characteristic of the pump 6;
  • the electronic control unit 5 is configured to
  • the aforesaid database 51 is connected to the electronic control unit 5.
  • Said characteristic data of the pump 6 preferably comprise flow rate data as a function of the counter-pressure provided by the manufacturer of the pump 6.
  • Said characteristic data of the pump 6, for example, are characteristic data of the pump 6.
  • the device 1 comprises a valve 7 adapted to control the release of fluid from said volume 20; said fluid being, in particular, steam generated by the evaporation of the liquid.
  • the valve 7 is preferably a solenoid valve, although it can also be a tap.
  • said calculation of said at least one coefficient a is performed for each restart of the device 1 , i.e., each time the device 1 is switched on, in particular to heat the liquid in the volume 20.
  • the electronic control unit 5 can calculate a coefficient a, or it can optionally calculate more than one coefficient, obtained differently from each other, as a function of the actual flow rate Qe6 and of the reference flow rate Qr6 of the pump 6.
  • the electronic control unit 5 and the pump 6, in particular, are electronically connected to each other.
  • the electronic control unit 5 is preferably configured to control the pump 6 as a function of said at least one coefficient a (or, more generally, of at least one coefficient of the one or more coefficients related to the pump 6 which the electronic control unit 5 can calculate); preferably so as to keep the quantity, in particular the mass, of liquid in said volume 20 above a predetermined quantity, in particular a mass, preferably within a predetermined range.
  • the electronic control unit 5 can be configured to control the activation and deactivation of the pump 6, i.e. , the control is of the on/off type, as a function of said at least one coefficient a.
  • the electronic control unit 5 can, for example, be configured to adjust the flow rate of the pump 6 as a function of said at least one coefficient a.
  • data of the reference flow rate Qr7 crossing the valve 7 as a function of the temperature are stored in the database 51 , in particular wherein said data were obtained by means of preliminary experimental tests and/or data characteristic of the valve 7, and the electronic control unit 5 is configured to
  • the characteristic data of the valve 7 depend, in particular, on the geometric features of the valve 7, in particular the fluid passage cross-section (when the valve 7 is open) and the geometry of the passage duct defined by the valve 7.
  • said calculation of the coefficient [3 is performed for each restart of the device 1 , i.e., each time the device 1 is switched on, in particular to heat the liquid in the volume 20.
  • the electronic control unit 5 is configured to control the valve 7 (in particular the opening and closing of the valve 7) as a function of said coefficient (3, preferably so as to keep the quantity, in particular the mass, of liquid in said volume 20 above a predetermined quantity, in particular a mass, preferably within a predetermined range.
  • the electronic control unit 5 is configured to detect and preferably report an anomaly in the pump 6 and/or to calculate a time for carrying out a maintenance operation on the pump 6, as a function of said at least one coefficient a (or, more generally of at least one coefficient of the one or more coefficients related to the pump which the electronic control unit 5 can calculate as a function of the actual flow rate Qe6 and the theoretical flow rate Qr6).
  • the electronic control unit 5 is configured to detect and preferably report an anomaly in the valve 7 and/or to calculate a time for carrying out a maintenance operation on the valve 7 as a function of said coefficient [3.
  • the anomaly can for example be reported by means of acoustic and/or luminous means and/or displayed on a display which the device 1 is optionally provided with.
  • the electronic control unit 5 can detect and preferably report an anomaly of the pump 6 if the value of said coefficient a is greater than a predetermined value.
  • the predetermined value can be, for example, a coefficient aO, calculated with the same method as the coefficient a, related to a perfectly functioning pump, similar to the pump 6.
  • the anomaly can be due, for example, to a bottleneck, whereby the coefficient a can be very different from the coefficient aO.
  • the electronic control unit 5 can be configured to calculate a time for carrying out a maintenance operation on the pump 6 (i.e., for a scheduled maintenance operation) as a function of the trend over time of said coefficient a, which can, for example, vary gradually over time with respect to the coefficient aO due to the wear of the pump 6.
  • the time for the aforesaid scheduled maintenance can for example be displayed on a display which the device 1 is optionally provided with.
  • the electronic control unit 5 can detect and preferably report an anomaly in the valve 7 and/or calculate a time for the scheduled maintenance of the valve 7 if the value of said coefficient [3 is greater than a predetermined value.
  • the predetermined value can be, for example, a coefficient (30, calculated with the same method as the coefficient [3, related to a perfectly functioning valve, similar to the valve 7.
  • Said measuring means 40 comprise a sensor 4.
  • the sensor 4 can, for example, be a level sensor adapted to measure the level of liquid in said volume 20, or a temperature sensor (e.g., a Negative Temperature Coefficient sensor, NTC) adapted to measure the temperature in said volume 20, or a pressure sensor adapted to measure the pressure in said volume 20.
  • a temperature sensor e.g., a Negative Temperature Coefficient sensor, NTC
  • a pressure sensor adapted to measure the pressure in said volume 20.
  • the electronic control unit 5 is configured to calculate the quantity, in particular the mass, of liquid in said volume 20 as a function of the trend over time of the temperature or pressure measured by means of said sensor 4, in particular while said heating means 3 generate heat to heat the liquid in said volume 20.
  • the senor 4 can directly measure the temperature or pressure in the volume 20 if the sensor 4 is arranged inside said volume 20 (as in the device 1 in Figure 1 ).
  • the senor 4 can indirectly measure the temperature or pressure in the volume 20 if the sensor 4 is arranged outside said volume 20.
  • an indirect measurement of the temperature in the volume 20 can be obtained, for example, when the sensor 4 is a temperature sensor and is arranged in contact with an outer surface which delimits said volume 20 (as in the device T in Figure 3), whereby the temperature inside the volume 20 can be derived or calculated, for example by means of the electronic control unit 5.
  • An indirect measurement of the pressure in the volume 20 can be obtained, for example, when the sensor 4 is a pressure sensor and is arranged in a duct adapted to introduce liquid into said volume 20, for example the duct 61 .
  • the senor 4 is a temperature sensor.
  • the temperature sensor is a Negative Temperature Coefficient (NTC) sensor.
  • a temperature sensor can advantageously be used since the heating time depends on the amount of liquid in the tank.
  • a pressure sensor can alternatively be used since the temperature and pressure in the volume 20 can be correlated to each other.
  • Figure 2 shows a graph of the temperature trend over time for four different quantities of liquid while it is heated.
  • Curve A relates to a quantity of liquid of about 400 ml
  • curve B relates to a quantity of liquid of about 500 ml
  • curve C relates to a quantity of liquid of about 600 ml
  • curve D relates to a quantity of liquid of about 700 ml.
  • the electronic control unit 5 is configured to detect and preferably report an anomaly and/or to deactivate the heating means 3 if the speed of temperature or pressure variation over time, detected by means of said at least one sensor 4, is greater than a predetermined variation speed value.
  • the senor 4 is a level sensor, it can for example comprise a metal rod extending into the volume 20 for the liquid to be heated, for example defined by a tank. When the water wets the rod, an electrical circuit closes, so that the water level is detected.
  • a device according to the invention can however be provided with one or more level sensors and/or one or more temperature sensors and/or one or more pressure sensors.
  • the device 1 can for example be a boiler (as diagrammatically shown in Figure 1 and 3), and in this case the aforesaid volume 20 can be defined by a tank 2 of the boiler.
  • the device can be a flow through heater (FTH), or flow heater, i.e. , a device adapted to heat the liquid as it flows in a duct of the device.
  • FTH flow through heater
  • flow heater i.e. , a device adapted to heat the liquid as it flows in a duct of the device.
  • the aforesaid volume is defined by a duct of the flow through heater.
  • the aforesaid volume can be defined by a component of a household appliance, in particular by a component of a dishwasher or a washing machine.
  • the volume can be defined by a compartment of the household appliance.
  • the invention also relates to a household appliance comprising a device 1 .
  • the invention also relates to a method for operating a device 1 , wherein the following steps are provided a) activating the pump 6 to introduce liquid into the volume 20; b) calculating the actual flow rate Qe6 of the pump 6 as a function of the variation in the quantity, in particular in the mass, of liquid in said volume 20 obtained by means of said measuring means 40; c) calculating at least one coefficient a as a function of the actual flow rate Qe6 of the pump 6 and the reference flow rate Qr6.
  • the pump 6 is controlled according to said at least one coefficient a.
  • the pump 6 is controlled according to said at least one coefficient a so as to keep the quantity, in particular the mass, of liquid in said volume 20 above a predetermined quantity, preferably within a predetermined range.
  • an anomaly in the pump 6 is detected and preferably reported and/or a time for performing a maintenance operation on the pump 6 is calculated, as a function of said at least one coefficient a.
  • a valve 7 is provided, adapted to control the fluid leakage from said volume 20; and data of reference flow rate Qr7 crossing the valve 7 as a function of the temperature are stored in the database 51 , in particular wherein said data were obtained by means of preliminary experimental tests and/or data characteristic of the valve 7, wherein there are provided the steps of
  • valve 7 is controlled according to said at least one coefficient (3, preferably so as to keep the quantity, in particular the mass, of liquid in said volume 20 above a predetermined quantity, in particular a mass, preferably within a predetermined range.
  • an anomaly of the valve 7 is detected and preferably reported and/or a time for performing a maintenance operation on the valve 7 is calculated, as a function of said at least one coefficient [3.
  • said measuring means 40 comprise a sensor 4, wherein said sensor is a temperature sensor adapted to measure the temperature of the liquid in said volume 20 or a pressure sensor adapted to measure the pressure of the liquid in said volume 20; and wherein, by means of the electronic control unit 5, the quantity, in particular the mass, of liquid in said volume 20 is calculated as a function of the trend over time of the temperature or pressure measured by means of said sensor 4, in particular while said heating means 3 generate heat to heat the liquid in said volume 20; preferably wherein, by means of the electronic control unit 5, an anomaly is detected and preferably reported and/or the heating means 3 are deactivated, if the speed of temperature or pressure variation over time, detected by means of said at least one sensor 4, is greater than a predetermined variation speed value.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fluid Mechanics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Computer Hardware Design (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Control Of Non-Positive-Displacement Pumps (AREA)

Abstract

L'invention concerne un dispositif (1) pour chauffer un liquide, en particulier de l'eau, comprenant - un volume (20) pour le liquide à chauffer ; - des moyens de chauffage (3) conçus pour chauffer le liquide ; - des moyens de mesure (40) pour déterminer la quantité de liquide dans ledit volume (20) ; - une pompe (6) pour introduire du liquide dans le volume (20) ; lesdits moyens de mesure (40) comprenant une unité de commande électronique (5) ; une base de données (51) étant prévue, dans laquelle sont stockées des données de débit de référence (Qr6) en fonction de la contre-pression en aval de la pompe (6) ; tandis que la pompe (6) est active pour introduire du liquide dans le volume (20), l'unité de commande électronique (5) étant configurée pour - calculer le débit réel (Qe6) de la pompe (6) en fonction de la variation de la quantité, en particulier de la masse, de liquide dans ledit volume (20) obtenu au moyen desdits moyens de mesure (40) ; - calculer au moins un premier coefficient (a) en fonction du débit réel (Qe6) et du débit de référence (Qr6).
PCT/IB2025/052576 2024-03-12 2025-03-11 Dispositif de chauffage pour chauffer un liquide, en particulier de l'eau Pending WO2025191458A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102024000005500 2024-03-12
IT202400005500 2024-03-12

Publications (1)

Publication Number Publication Date
WO2025191458A1 true WO2025191458A1 (fr) 2025-09-18

Family

ID=91185174

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69708580T2 (de) * 1996-11-13 2002-07-04 Seb S.A., Ecully Dampferzeuger
US20170016173A1 (en) * 2014-03-31 2017-01-19 Koninklijke Philips N.V. Apparatus including a steam generator and method of controlling the same
US9572474B2 (en) * 2013-01-17 2017-02-21 Indesit Company S. P. A. Method for controlling filling with water of a water-conducting electric household appliance
EP3440412B1 (fr) * 2016-04-05 2020-11-18 Smart Global B. Energy Ltd Système de chauffage d'eau à chaudière intelligente et procédé associé
GB2600398A (en) * 2020-10-21 2022-05-04 Otter Controls Ltd Liquid heating and dispensing apparatus and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69708580T2 (de) * 1996-11-13 2002-07-04 Seb S.A., Ecully Dampferzeuger
US9572474B2 (en) * 2013-01-17 2017-02-21 Indesit Company S. P. A. Method for controlling filling with water of a water-conducting electric household appliance
US20170016173A1 (en) * 2014-03-31 2017-01-19 Koninklijke Philips N.V. Apparatus including a steam generator and method of controlling the same
EP3440412B1 (fr) * 2016-04-05 2020-11-18 Smart Global B. Energy Ltd Système de chauffage d'eau à chaudière intelligente et procédé associé
GB2600398A (en) * 2020-10-21 2022-05-04 Otter Controls Ltd Liquid heating and dispensing apparatus and method

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