WO2012144744A2 - Chauffe-eau électrique muni d'un élément chauffant à régulation automatique, et procédé de fabrication dudit chauffe-eau - Google Patents

Chauffe-eau électrique muni d'un élément chauffant à régulation automatique, et procédé de fabrication dudit chauffe-eau Download PDF

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Publication number
WO2012144744A2
WO2012144744A2 PCT/KR2012/002126 KR2012002126W WO2012144744A2 WO 2012144744 A2 WO2012144744 A2 WO 2012144744A2 KR 2012002126 W KR2012002126 W KR 2012002126W WO 2012144744 A2 WO2012144744 A2 WO 2012144744A2
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WIPO (PCT)
Prior art keywords
heating element
temperature
water heater
electric water
self
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Ceased
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PCT/KR2012/002126
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English (en)
Korean (ko)
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WO2012144744A3 (fr
Inventor
김병철
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PNU Eco Energy Co Ltd
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PNU Eco Energy Co Ltd
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Publication of WO2012144744A2 publication Critical patent/WO2012144744A2/fr
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Anticipated expiration legal-status Critical
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    • 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
    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/78—Heating arrangements specially adapted for immersion heating
    • H05B3/82—Fixedly-mounted immersion 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
    • F24H1/18—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
    • 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
    • F24H15/156—Reducing the quantity of energy consumed; Increasing efficiency
    • 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
    • F24H15/246—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
    • F24H15/30—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
    • 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
    • F24H9/18—Arrangement or mounting of grates or heating 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
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1818—Arrangement or mounting of electric heating means
    • F24H9/1827—Positive temperature coefficient [PTC] resistor
    • 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
    • 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
    • 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
    • H05B3/00—Ohmic-resistance heating
    • H05B3/20—Heating elements having extended surface area substantially in a two-dimensional [2D] plane, e.g. plate-heater

Definitions

  • the present invention relates to a water heater, in particular a precise temperature control is possible in a specific temperature range, and by applying a self-regulation (SR) heating element capable of self-control of power and temperature over time can maintain the temperature uniformly hot water tank It is possible to quickly heat the water inside and keep it at a high temperature, and since it maintains the minimum power supply after rising to a constant boiling point temperature, it is a temperature self-regulation type that can greatly reduce the power consumption.
  • the present invention relates to a water heater to which a heating element is applied and a method of manufacturing the same.
  • a water heater is a device that generates heat energy as an energy source and then uses hot water obtained by heating water using the generated heat energy.
  • the water heater uses oil, gas, or electricity as an energy source for heating water. Doing.
  • the advantages and disadvantages of the water heater according to these energy sources are that the oil-based water heater has a high maintenance cost and a lot of noise due to the recent surge in oil prices, and there is a problem of installing an oil tank separately. There is a problem that there is a big burden, and water heaters using gas are convenient because of the high gas supply rate for cooking in each home, but problems such as the possibility of gas leakage and explosion accident and clouding of indoor air due to gas combustion are pointed out. have.
  • the biggest problem is that the heating element used for heating in the conventional water heater is not easy to precise temperature control, and maintains the same power supply even after rising to a constant boiling point temperature is excessive energy loss.
  • the present invention has been proposed to solve the conventional problems as described above, and an object of the present invention is to enable accurate temperature control in a specific temperature range, and to allow self-control of power and temperature according to time. Regulation) Since the temperature can be maintained uniformly by applying a heating element, it is possible to quickly heat the water in the hot water tank and maintain the temperature at a high temperature. It is to provide an electric water heater with a temperature self-regulating heating element that can significantly reduce.
  • the hot water tank having a cold water inlet and hot water discharge port;
  • the water is heated by the electric power installed and installed in the hot water tank to heat water, and a paste mixed with an electric resistance material component, an insulation binder component, and a temperature control material component is cured to generate heat by being supplied with power.
  • the technical configuration is characterized by including a self-regulating heating element (SR) for performing a temperature self-regulation function to maintain a constant temperature in a predetermined region.
  • SR self-regulating heating element
  • the SR heating element is formed in the form of a plate, it may be characterized in that provided with a through hole to allow the flow of water in the middle.
  • the hot water tank may be provided with a water temperature sensor for measuring the temperature of the water.
  • the hot water tank may be characterized in that the water temperature sensor for measuring the water level of water is further installed.
  • the fixing means for fixing the upper and lower portions respectively in the hot water tank, the upper and lower ends of the SR heating element in a sliding manner may be further installed.
  • the SR heating element has a conduction path (conduction path) is formed on the surface, the power line of the controller is located in the conductive path may be characterized in that it generates heat by conducting power from the controller.
  • the electric resistance material component of the SR heating element may be 50 to 75% by weight
  • the insulating binder component is 5 to 16% by weight
  • the temperature control material component may be characterized in that 10 to 40% by weight.
  • the electric resistance material component of the SR heating element may be characterized in that the paste is formed in a powder mixture state containing nickel (Ni) and aluminum (Al).
  • the nickel may be 50 to 60% by weight of the electrical resistance material component
  • the aluminum may be characterized in that 40 to 50% by weight of the electrical resistance material component.
  • the electrical resistance material component of the SR heating element may be characterized in that it further comprises a corrective ingredient (corrective ingredients) at least one selected from the group of molybdenum (Mo), boron (B), silicon (Si).
  • a corrective ingredient at least one selected from the group of molybdenum (Mo), boron (B), silicon (Si).
  • the molybdenum may be 0.05 to 0.2 at% of the paste
  • the boron may be characterized in that 0.005 to 0.02 at% of the paste.
  • the dispersion (dispersion) value between the particles constituting the electrical resistance material component of the SR heating element is 0.1 to 10 ⁇ m
  • the temperature coefficient of resistance (TCR) of the SR heating element is a particle constituting the electrical resistance material component. It may be characterized by being controlled by the liver dispersion value.
  • the insulating binder component of the SR heating element may be made of any one selected from the group consisting of polyester (polyester), epoxy (epoxy) resin, epoxy-phenol lacquer (epoxy phenol laquer) composition.
  • the insulating binder component of the SR heating element is 10 to 16% by weight
  • the insulating binder component of the SR heating element may be characterized in that it further comprises a silicon (Si) powder of the nanostructure of the stabilizing additive.
  • the silicon may be characterized in that 0.3 to 0.7 at% of the paste.
  • the modulator component of the SR heating element may be characterized in that the paste is formed in a lead-free-glass powder mixture state.
  • the glass powder mixture may be characterized in that it comprises SiO2, BaO, B2O3, Al2O3.
  • the dispersion (dispersion) value of the particles constituting the modulator component of the SR heating element may be characterized in that 0.05 to 2 ⁇ m.
  • the modulator component of the SR heating element may further include a corrective ingredient in which one or more selected from the group ZnO, Al, TiO2, and Bi2O3BaTiO.
  • the discreteness between particles constituting the calibration component may be 0.05 to 0.4 ⁇ m.
  • the modulator component of the SR heating element is characterized in that it comprises a mixture of at least one selected from the group of niobium (Nb), antimony (Sb), yttrium (Y), lanthanum (La) as a donor (donor) can do.
  • the resistance value of the SR heating element is 0.05 to 1.0 ⁇ / ⁇ , characterized in that the resistance value of the SR heating element is changed by adjusting the weight ratio of the electrical resistance material component, the insulating binder component, the control material component constituting the SR heating element.
  • the resistance temperature coefficient of the SR heating element is 500 ⁇ 10 -6 to 50 ⁇ 10 -4 / °C, the SR heating element by adjusting the weight ratio of the electrical resistance material component, the insulating binder component, the control material component constituting the SR heating element.
  • the resistance temperature coefficient of may be characterized in that it is changed.
  • the manufacturing method of the electric water heater to which the temperature self-regulating heating element according to the present invention comprises the steps of preparing an SR heating element forming paste (paste) is mixed with the electrical resistance material component, the insulation binder component and the temperature control material component; Applying the SR heating element-forming paste to a surface of a heat resistant substrate at a predetermined thickness; Characterizing in the technical configuration comprising the step of curing the paste for forming the SR heating element.
  • the SR heating element paste may be applied to the heat resistant substrate by a screen print method.
  • the electrical resistance material component is added to the nickel, aluminum molybdenum (Mo), boron (B), silicon (Si), such as (corrective ingredients) by adding a planetary bowl mill (ball) for 4 to 12 hours without oxygen inflow It may be characterized in that the manufacturing in the closed space of the mill).
  • Electric water heater using the temperature self-regulating heating element according to the present invention it is possible to precise temperature control in a specific temperature range, by applying a self-regulation (SR) heating element capable of self-control of power and temperature over time to uniform temperature It maintains a minimum power supply after a rapid rise to a constant boiling point temperature, so that the water in the hot water tank can be heated quickly and power consumption can be greatly reduced.
  • SR self-regulation
  • the present invention is the manufacturing cost is reduced by the application of the SR heating element, the maintenance work is simple, there is no malfunction or failure does not occur, have a high reliability and durability, and can prevent the occurrence of fire.
  • the present invention is to change the resistance value and the resistance temperature coefficient of the SR heating element by adjusting the weight ratio of each component of the SR heating element is also an advantage that can be easily and easily manufactured SR heating element whose physical properties are adjusted in response to various temperature environment have.
  • the SR heating element is formed in the form of a plate, but since the flow of water is free through a plurality of through-holes formed in the middle, the heat transfer efficiency per unit time is high, and the hot water production capacity is excellent.
  • FIG. 1 is a front sectional view for explaining the configuration of the electric water heater according to the present invention.
  • FIG 2 is an operation control circuit diagram of the electric water heater according to the present invention.
  • Figure 3 is a front view for explaining the configuration of the SR heating element applied to the electric water heater according to the present invention.
  • Figure 4 is an enlarged cross-sectional view showing the structure of the SR heating element applied to the electric water heater according to the present invention.
  • FIG. 5 is a graph showing the temperature control performance according to the embodiment and the comparative example of the SR heating element applied to the electric water heater according to the present invention.
  • Figure 6 is a graph showing the power test results of the SR heating element applied to the electric water heater according to the present invention.
  • Figure 7 is a graph showing the impedance test results of the SR heating element applied to the electric water heater according to the present invention.
  • Figure 8 is a graph showing the results of the temperature change experiment of the SR heating element applied to the electric water heater according to the present invention.
  • the electric water heater according to the present invention has a configuration having an SR heating element which can greatly reduce the power consumption because it maintains a minimum power supply after rapidly rising to a high temperature and rising to a constant boiling point temperature.
  • FIG. 1 is a front sectional view for explaining the configuration of the electric water heater according to the present invention
  • Figure 2 is an operation control circuit diagram of the electric water heater according to the present invention
  • Figure 3 is a configuration of the SR heating element applied to the electric water heater according to the present invention. It is a front view for demonstrating.
  • the electric water heater 1 is provided with a hot water tank 2, the hot water tank 2 is connected to a water pipe or the like to introduce cold water into the hot water tank (2) (3) And a hot water outlet 5 introduced through the cold water inlet 3 and discharging the hot water 4 heated in the hot water tank 2 to a place where the hot water tank 2 is heated.
  • the cover 6 is attached so that water does not overflow to the outside.
  • the SR heating element 7 is formed in a plate shape, and has a through hole 7a allowing water flow in the middle thereof. Since the SR heating element 7 is in constant contact with water in the hot water tank 2, the surface of the SR heating element 7 is coated with an insulating waterproof layer.
  • an insulation waterproof layer it is preferable to use resin with large insulation and water resistance, for example, an epoxy, a Teflon resin, etc.
  • the SR heating element (7) is fixed in the hot water tank (2), the upper and lower ends of the rail-shaped fixing means (16) with sliding grooves are respectively supported by sliding.
  • the fixing means 16 is made of an insulating material and installed in the upper and lower portions of the hot water tank 2 in accordance with the number of the SR heating elements 7.
  • the motor pump 20 is installed to be connected to the cold water inlet 3 in the hot water tank (2).
  • the power supply controller 22 supplies electric power from the power supply source 13 to the motor pump 20.
  • the motor pump 20 is operated.
  • water cold water
  • the motor pump 20 is controlled to stop driving.
  • two water level detection sensors 21 may be used for adjusting the water level
  • the motor pump 20 may be driven only for a predetermined time using a timer.
  • a water temperature sensor 23 is installed to detect the water temperature in the hot water tank 2, and when the water temperature detected by the water temperature sensor 23 reaches the designed lower limit, the power supply controller 22 is connected to the SR heating element 7. Electricity is supplied from the power supply source 13 to generate heat, and the water in the hot water tank 2 is quickly heated by this heat.
  • the relay switch 24 drops to turn off the power supply.
  • the relay switch 24 may be a separate mechanism or may be provided inside the power supply controller 22.
  • AC power or solar electric power or battery power may be used as the power supply source 13.
  • the electric water heater according to the present invention may be used for hot water or for shower or heating. .
  • the SR heating element 7 is capable of precise temperature control in a specific temperature range, self-control of power and temperature over time, and after rising to a constant boiling point temperature. It maintains a minimum power supply and is configured to greatly reduce power consumption. Therefore, the water in the hot water tank 2 is rapidly heated to increase the temperature, but the power consumption can be minimized.
  • Figure 4 is a cross-sectional view showing an enlarged structure of the SR heating element applied to the electric water heater according to the present invention
  • Figure 5 is a graph showing the temperature control performance according to the embodiment and comparative example of the SR heating element applied to the electric water heater according to the present invention.
  • 6 is a graph showing a power test result of the SR heating element applied to the electric water heater according to the present invention
  • FIG. 7 is a graph showing an impedance test result of the SR heating element applied to the electric water heater according to the present invention
  • FIG. Is a graph showing the results of a temperature change experiment of the SR heating element applied to the electric water heater.
  • the SR heating element 7 is supplied with power from the power supply of the power supply controller 22 to generate heat.
  • Such SR heating element 7 is to perform a temperature self-regulation function, so that the temperature is kept constant in the set temperature range while adjusting the heating state in response to the ambient temperature environment. That is, the SR heating element 7 keeps the predetermined temperature of the region around the SR heating element 7 continuously at a set temperature, so that the predetermined region temperature around the SR heating element 7 is lower than a temperature value set due to external influences or the like.
  • the predetermined area temperature around the SR heating element 7 quickly reaches the set temperature.
  • the predetermined area temperature around the SR heating element 7 increases, the predetermined area around the SR heating element 7 is turned off. Allow the temperature to lower.
  • the heat generating state of the SR heating element 7 is adjusted according to the difference between the predetermined region temperature around the SR heating element 7 and the set temperature, and as the difference between the predetermined region temperature and the set temperature around the SR heating element 7 increases, the temperature is increased. It has the ability to generate heat and allow rapid temperature rise.
  • the self-regulation function of the SR heating element 7 has a predetermined thickness produced by curing a paste in which an electric resistance material component, an insulation binder component, and a temperature control material component are mixed. It is implemented by a film or a coating film.
  • the SR heating element 7 is formed in the form of a plate as mentioned above, and has a through hole 7a in the middle thereof to allow the flow of water. And it is stably supported by the fixing means 16 in the hot water tank (2).
  • a conduction path 72 is formed on the surface of the SR heating element 7, and the power line 71 of the power supply device of the controller 22 is located in the conduction path 72.
  • the SR heating element 7 receives power through the conductive path 72 to generate heat in the range of approximately 150 to 450 ° C.
  • the SR heating element 7 is made by curing a paste in which an electric resistance material component, an insulating binder component, and a control material component are mixed.
  • the SR heating element 7 may be formed by being applied to a heat resistant substrate by a screen print method.
  • the SR heating element 7 may be heat-treated in a conveyor furnace that emits infrared rays for 8 to 12 minutes at 130 to 160 ° C., and then heat-treated at 180 ° C. for 20 minutes.
  • the conductive path 72 is formed on the surface of the SR heating element 7 so that the power line 71 of the power supply device of the controller 22 is positioned in the conductive path 72 to conduct electricity to generate heat.
  • SR heating element 7 is configured to have 50 to 75% by weight of the electrical resistance material component, 5 to 16% by weight of the insulating binder component, 10 to 40% by weight of the temperature control material component do.
  • the content of the electrical resistance material component is less than 50% by weight is not preferable to realize the heat generating performance of the heating element, when it exceeds 75% by weight is not preferable because the stability of the temperature control is lowered.
  • the content of the insulating binder component is less than 5% by weight, it is not preferable because the bonding strength of the composition is lowered.
  • the content of the insulating binder component is more than 16% by weight, the component content of other compositions such as the resistance component is low, so that the exothermic performance is lowered. I can't.
  • the content of the temperature control material component is less than 10% by weight, it is not desirable to be insufficient to realize the function of adjusting to a specific temperature, and when the content of the temperature control material exceeds 40% by weight, the content of other components such as the resistance component is too small. Not preferred.
  • the SR heating element 7 forms a paste in a powder mixture state in which the electrical resistance material component includes nickel (Ni) and aluminum (Al).
  • the electrical resistivity component is composed of nickel 50 to 60% by weight of the electrical resistance material component, aluminum 40 to 50% by weight of the electrical resistive material component, nickel 53% by weight of the electrical resistive material component, aluminum It is preferably configured to have 47% by weight of this electrical resistive substance component.
  • the electrical resistance material component of the SR heating element 7 may include molybdenum (Mo), boron (B), silicon (Si), and the like as corrective ingredients.
  • Mo molybdenum
  • B boron
  • Si silicon
  • the molybdenum is 0.05 to 0.2 at% of the paste
  • the boron is to be composed of 0.005 to 0.02 at% of the paste
  • the molybdenum is preferably composed of 0.1 at% of the paste
  • the boron is composed of 0.01 at% of the paste.
  • the electrical resistive substance is added to nickel and aluminum by adding corrective ingredients such as molybdenum (Mo), boron (B), and silicon (Si) for 4 to 12 hours (preferably 6- 10 hours) in a closed space of a planetary ball mill.
  • Mo molybdenum
  • B boron
  • Si silicon
  • the dispersion value between particles constituting the electrical resistance material component of the SR heating element 7 is formed in the range of 0.1 to 10 ⁇ m, more preferably, the dispersion value between particles in the range of 0.5 to 5 ⁇ m.
  • the specific surface area is preferably 200 m 2 / g or less.
  • the dispersion value between the particles constituting the electrical resistance material component is linked to the temperature coefficient of resistance (TCR) of the SR heating element 7, and the resistance temperature coefficient of the SR heating element 7 is the electrical resistance material component. It is controlled by the dispersion value between particles.
  • the dispersion value between the particles constituting the electrical resistance material component is controlled by the time the electrical resistance material component stays in the closed space of the planetary ball mill.
  • the insulating binder component of the SR heating element 7 is selected from a polyester, an epoxy resin, an epoxy-phenol lacquer composition, and the like.
  • the insulating binder component is composed of 10 to 16% by weight of the paste
  • nanostructured silicon (Si) powder which is a stabilizing additive, may be added to the insulating binder component.
  • Si may be composed of 0.3 to 0.7 at% of the paste, preferably 0.4 to 0.6 at%.
  • Such silicon shortens the structure formation time of the SR heating element 7 when manufacturing the SR heating element 7, and allows the resistance temperature coefficient of the SR heating element 7 which is set and implemented to be maintained for a long time.
  • the SR heating element (7) serves to adjust to about 150 ⁇ 450 °C in the energized state through the temperature control material component.
  • a specific material must be included as an appropriate temperature control material component to prevent overheating of the heating element and to contribute to the proper power consumption.
  • the temperature control material of the SR heating element 7 forms a paste in the form of a lead-free-glass powder mixture.
  • the glass powder mixture is obtained from the group consisting of SiO2, BaO, B2O3, and Al2O3. It is preferred that it is at least one oxide selected.
  • the temperature control material component of the SR heating element 7 may be manufactured in a closed space of a planetary ball mill for 4-12 hours (preferably 6-10 hours) without oxygen inflow.
  • the temperature control material component of the SR heating element 7 is such that the dispersion (dispersion) value between particles is formed in the range of 0.05 to 2 ⁇ m, preferably to form the dispersion value between particles in the range of 0.1 to 1.0 ⁇ m .
  • the dispersion value between particles constituting the thermostat component is controlled by the time that the thermostat component stays in the closed space of the planetary ball mill.
  • the temperature control material component of the SR heating element 7 may add a corrective ingredient including ZnO, Al, TiO2, Bi2O3BaTiO, etc., the discrete particles between the particles forming the correction component of such a temperature control material component (discretisation) can be formed in the range of 0.05 to 0.4 ⁇ m, preferably to be formed in the range of 0.1 to 0.3 ⁇ m.
  • the temperature control material component of the SR heating element 7 has a mixture including niobium (Nb), antimony (Sb), yttrium (Y), lanthanum (La), and the like as a donor. Such donors are added to obtain high volume conductivity.
  • SR heating element 7 according to an embodiment of the present invention configured as described above has a resistance value of 0.05 to 1.9 ⁇ / ⁇ (preferably 0.09 to 0.9 ⁇ / ⁇ ), SR according to an embodiment of the present invention
  • the heating element 7 changes the resistance value of the SR heating element 7 by adjusting the weight ratio of the electrical resistance material component, the insulation binder component, and the temperature control material component.
  • the SR heating element 7 according to the embodiment of the present invention configured as described above is a resistance thermometer of 500 to 50 ⁇ 10 -4 / °C (preferably 560 ⁇ 10 -6 to 40 ⁇ 10 -4 / °C) It has a number (TCR), the SR heating element 7 according to the embodiment of the present invention changes the resistance temperature coefficient of the SR heating element 7 by adjusting the weight ratio of the electrical resistance material component, the insulation binder component, the temperature control material component Let's go.
  • Figure 5 is a graph showing the temperature control performance according to Example 1 and Comparative Example 1, the line segment 1 shows a temperature increase curve according to Comparative Example 1, the line segment 2 of the SR heating element 7 according to the present invention As the temperature is increased, the SR heating element 7 (Example 1) of the present invention can be seen that the resistance increases rapidly when the temperature is above a certain value.
  • Example 1 the resistance value (impedance) increases with time, and thus the power usage decreases.
  • Comparative Example 1 the impedance is almost constant and the power consumption is almost constant. Therefore, the SR heating element 7 of the present invention can increase the resistance value with time to reduce the power consumption, and the power and temperature self-regulation with time due to the increase in the resistance value (material characteristics). You can see that this is possible.
  • the electric water heater of the present invention allows the SR heating element 7 to maintain a constant temperature while controlling the heat generation state in response to the surrounding temperature environment, the water in the hot water tank 2 is quickly heated to a temperature. It can increase the temperature and maintain the elevated temperature with low power consumption.

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

Abstract

La présente invention concerne un chauffe-eau électrique muni d'un élément chauffant à régulation automatique, la température pouvant être régulée avec précision à l'intérieur d'une plage de température donnée ; l'eau contenue dans le réservoir d'eau chaude peut être chauffée rapidement et la température élevée de l'eau peut être maintenue du fait que l'élément chauffant à régulation automatique (élément chauffant SR) peut temporairement réguler uniformément l'énergie et la température et maintenir une température uniforme ; la consommation d'énergie peut être nettement réduite du fait que la température de l'eau peut être maintenue avec une alimentation minimale en énergie une fois que l'eau a chauffé au-delà d'un point d'ébullition fixé. Le chauffe-eau électrique comprend : un réservoir d'eau chaude muni d'une entrée d'eau froide et d'une sortie d'eau chaude ; et un élément chauffant SR qui est agencé dans le réservoir d'eau chaude, est formé d'un mélange pâteux durci d'un matériau à résistance électrique, d'un liant isolant et d'un matériau de thermorégulation, génère de la chaleur avec l'énergie qui lui est fournie, et régule automatiquement la température de sorte qu'elle est maintenue uniformément à l'intérieur d'une plage définie.
PCT/KR2012/002126 2011-04-20 2012-03-23 Chauffe-eau électrique muni d'un élément chauffant à régulation automatique, et procédé de fabrication dudit chauffe-eau Ceased WO2012144744A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2011-0036810 2011-04-20
KR1020110036810A KR20120119066A (ko) 2011-04-20 2011-04-20 온도 자가조절형 발열체를 적용한 전기 온수기 및 그 제조방법

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WO2012144744A3 WO2012144744A3 (fr) 2013-01-17

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CN103017340A (zh) * 2013-01-11 2013-04-03 山东澳华新能源有限公司 一种采用碳纤维电加热器的储热水箱
CN103994567A (zh) * 2013-02-14 2014-08-20 松下电器产业株式会社 贮热水式热水器
CN105928210A (zh) * 2016-04-28 2016-09-07 珠海格力电器股份有限公司 水加热设备的控制方法、装置和水加热设备
CN114001462A (zh) * 2021-02-06 2022-02-01 李高峰 供水系统和混水装置以及供水方法
CN115468301A (zh) * 2022-10-26 2022-12-13 中国核动力研究设计院 一种发电机组耗能装置

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WO2015200646A1 (fr) * 2014-06-25 2015-12-30 Mag Aerospace Industries, Llc Dispositif de chauffage en ligne à régulation autonome
CN106016706A (zh) * 2016-07-15 2016-10-12 武夷山欧卡工业设计有限公司 一种蓄能沸腾式开水炉
CN108361994B (zh) * 2018-02-05 2021-10-22 广东美的暖通设备有限公司 热水器及其控制方法和控制装置
AU2024335358A1 (en) * 2023-08-28 2026-03-05 Channing Street Copper Company Battery-integrated water heater system and method

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JPS63107695U (fr) * 1986-09-05 1988-07-11
JP3633329B2 (ja) * 1998-11-18 2005-03-30 東陶機器株式会社 瞬間加熱式温水装置
KR100369565B1 (ko) * 1999-12-17 2003-01-29 대주정밀화학 주식회사 전기발열체용 저항 페이스트 조성물
KR20050113148A (ko) * 2005-11-14 2005-12-01 손영호 내장형 온수저장 장치 및 설치·사용방법

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CN103017340A (zh) * 2013-01-11 2013-04-03 山东澳华新能源有限公司 一种采用碳纤维电加热器的储热水箱
CN103994567A (zh) * 2013-02-14 2014-08-20 松下电器产业株式会社 贮热水式热水器
CN103994567B (zh) * 2013-02-14 2017-12-29 松下电器产业株式会社 贮热水式热水器
CN105928210A (zh) * 2016-04-28 2016-09-07 珠海格力电器股份有限公司 水加热设备的控制方法、装置和水加热设备
CN114001462A (zh) * 2021-02-06 2022-02-01 李高峰 供水系统和混水装置以及供水方法
CN115468301A (zh) * 2022-10-26 2022-12-13 中国核动力研究设计院 一种发电机组耗能装置

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