US20200049375A1 - Electric water heater having instantaneous hot water storage-type structure - Google Patents

Electric water heater having instantaneous hot water storage-type structure Download PDF

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Publication number
US20200049375A1
US20200049375A1 US16/655,155 US201916655155A US2020049375A1 US 20200049375 A1 US20200049375 A1 US 20200049375A1 US 201916655155 A US201916655155 A US 201916655155A US 2020049375 A1 US2020049375 A1 US 2020049375A1
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heat exchange
water
exchange pipe
housing
heater
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US16/655,155
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English (en)
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Young-Hwan Choi
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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
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/14—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
    • F24H1/16—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled
    • F24H1/162—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form helically or spirally coiled using electrical energy 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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/12—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium
    • F24H1/121—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using electric energy supply
    • F24H1/122—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium in which the water is kept separate from the heating medium using electric energy supply combined with 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
    • 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
    • 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
    • F24H15/20—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
    • F24H15/246—Water level
    • 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
    • F24H15/315—Control of valves of mixing 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
    • F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
    • F24H7/02—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid
    • F24H7/04—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid
    • F24H7/0408—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid using electrical energy supply
    • F24H7/0433—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid with forced circulation of the transfer fluid using electrical energy supply the transfer medium being water
    • 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
    • F24H9/0005—Details for water heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/02—Casings; Cover lids; Ornamental panels
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/0408—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids
    • F28D1/0417—Multi-circuit heat exchangers, e.g. integrating different heat exchange sections in the same unit or heat exchangers for more than two fluids with particular circuits for the same heat exchange medium, e.g. with the heat exchange medium flowing through sections having different heat exchange capacities or for heating/cooling the heat exchange medium at different temperatures
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F28D1/0472—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag the conduits being helically or spirally coiled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
    • 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
    • F24H2250/00—Electrical heat generating means
    • F24H2250/02—Resistances
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D2020/0065—Details, e.g. particular heat storage tanks, auxiliary members within tanks
    • F28D2020/0078—Heat exchanger arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D2020/0065—Details, e.g. particular heat storage tanks, auxiliary members within tanks
    • F28D2020/0086—Partitions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14—Thermal energy storage

Definitions

  • the present invention relates to an electric water heater having an instantaneous hot water storage-type structure and, more specifically, the present invention relates to an electric water heater having an instantaneous hot water storage-type structure allowing to provide instantaneous, continuous flow of a large amount of hot water, without having to heat the water accommodated inside a housing directly.
  • FIG. 1 is a view illustrating a conventional electric water heater.
  • the conventional electric water heater 1 includes a storage tank 10 in which water is accommodated, a heater 20 provided in the lower portion of the storage tank 10 , a water supply pipe 11 provided on a lower portion side of the storage tank 10 , and a hot water providing unit 12 provided on an upper portion side of the storage tank 10 .
  • Water supplied into the storage tank 10 through the water supply pipe 11 is directly heated by the heater 20 , and then the water is provided to users through the hot water providing unit 12 .
  • the conventional electric water heater 1 is a direct heating-type water heater, in which the heater 20 directly heats a large amount of water stored in the storage tank 10 and then supplies hot water to the users.
  • the heater 20 directly heats a large amount of water stored in the storage tank 10 and then supplies hot water to the users.
  • heating stored water takes a long time.
  • An objective of the present invention for solving the problems of the related art as described above, is to provide an electric water heater having an instantaneous storage-type structure that allows providing a large amount of hot water instantaneously without having to directly heat the water accommodated in a housing of the electric water heater.
  • the electric water heater having an instantaneous hot water storage-type structure.
  • the electric water heater includes: a housing having a space to accommodate water therein, an inlet part being provided at one side of the space, and an outlet part being provided at the other side of the space; a first heat exchange pipe disposed at one side of an inside of the housing; a second heat exchange pipe disposed at the other side of the inside of the housing; a heater that applies heat to the first heat exchange pipe or the second heat exchange pipe; and a connection member having a first connection pipe connecting the inlet part to the first heat exchange pipe, a second connection pipe connecting the first heat exchange pipe to the second heat exchange pipe, and a third connection pipe connecting the second heat exchange pipe to the outlet part.
  • first heat exchange pipe and the second heat exchange pipe may be respectively provided to be wound in a coil shape, and the heater may be positioned in a center of the second heat exchange pipe.
  • first heat exchange pipe may be positioned at an upper side of the inside of the housing
  • second heat exchange pipe may be positioned at a lower side of the inside of the housing
  • the heater may apply heat to the second heat exchange pipe
  • the electric water heater may further include a separating partition provided between the first heat exchange pipe and the second heat exchange pipe, wherein the heater may be provided at a lower portion of the separating partition.
  • the separating partition may be provided to cover an outer periphery of the second heat exchange pipe, and a flow of the water heated by heat exchange with the heater or the second heat exchange pipe, which is a portion of the water provided in an inside of the housing, may be blocked by the separating partition.
  • the separating partition may include: a pair of sidewalls protruding from a bottom of the inside of the housing to an upper portion thereof, with the second heat exchange pipe and the heater provided therebetween; and an upper wall integrally connecting upper ends of the pair of the sidewalls to each other.
  • first heat exchange pipe may be configured in plural, and the connection member may further include a sub connection pipe connecting a pair of adjacent first heat exchange pipes to each other.
  • the housing may include an inner housing provided with the space and an outer housing covering an outer side of the inner housing, and each of the inlet part and the outlet part may be positioned in the space while passing through the outer housing and the inner housing.
  • the electric water heater may further include: a connection pipe in which one side thereof is connected to the inlet part or the first connection pipe and the other side thereof is connected to the outlet part or the third connection pipe; a temperature measuring sensor provided in the outlet part and measuring a temperature of the water passing through the outlet part; and a mixing valve installed in the connection pipe to open or close the connection pipe, wherein when the temperature of the water measured by the temperature measuring sensor is above a predetermined temperature, the mixing valve is opened so that the water supplied through the inlet part is allowed to be mixed with the water in the third connection pipe or the outlet part through the connection pipe.
  • the electric water heater may further include a water supply member for controlling a level of the water accommodated in the housing to be kept constant.
  • the water supply member may include: a float installed to move up or down by buoyancy of water accommodated in the housing; a float switch for controlling the supply of water on the basis of a position of the float; and a supply pipe for supplying the water to the float switch.
  • the first and second heat exchange pipes are provided in and inside a housing, the water flowed into the housing is heated while passing through the first and second heat exchange pipes. Therefore, there is an effect that a large amount of hot water is continuously, instantaneously provided without having to heat a large amount of water accommodated in the housing directly.
  • FIG. 1 is a view illustrating a conventional electric water heater.
  • FIG. 2 is a view schematically illustrating an electric water heater having an instantaneous hot water storage-type structure according to a preferred embodiment of the present invention
  • FIG. 3 is a view schematically illustrating an inside of the electric water heater having the instantaneous hot water storage-type structure according to the preferred embodiment of the present invention.
  • FIG. 4 is a view illustrating a connection member of the electric water heater having the instantaneous hot water storage-type structure according to the preferred embodiment of the present invention.
  • FIG. 5 is a view illustrating for explaining an operation of the electric water heater having the instantaneous hot water storage-type structure according to the preferred embodiment of the present invention.
  • FIG. 6 is a view schematically illustrating a state in which a first heat exchange pipe of the electric water heater having the instantaneous hot water storage-type structure according to the preferred embodiment of the present invention is configured in plural.
  • FIG. 2 is a view schematically illustrating the electric water heater having the instantaneous hot water storage-type structure according to the preferred embodiment of the present invention
  • FIG. 3 is a view schematically illustrating an inside of the electric water heater having the instantaneous water heater storage-type structure according to the preferred embodiment of the present invention.
  • the electric water heater 100 having the instantaneous hot water storage-type structure may include a housing 110 , a first heat exchange pipe 120 , a second heat exchange pipe 130 , a heater 140 , and a connection member 150 . Also, the electric water heater may further include a separating partition 160 and a water supply member 170 .
  • the housing 110 is provided with a space 112 so that water is accommodated therein.
  • the housing 110 has a double structure, specifically: an inner housing 110 a that provides the space 112 and an outer housing 110 b that covers an outer side of the inner housing 110 a .
  • An inlet part 114 and an outlet part 116 are respectively provided at one side and the other side of a lower side of the housing 110 , and a drain part 118 is positioned between the inlet part 114 and the outlet part 116 .
  • Each of the inlet part 114 , the outlet part 116 , and the drain part 118 is positioned in the space 112 while passing through the outer housing 110 b and the inner housing 110 a .
  • the inlet part 114 is configured to allow outside water to be supplied, and the outlet part 116 is configured to allow hot water passing through the second heat exchange pipe 130 , which is to be described later, to be provided to the outside of the housing 110 .
  • the drain part 118 is configured to drain the water accommodated in the space 112 to the outside.
  • the first heat exchange pipe 120 may be positioned at an upper side in the space 112
  • the second heat exchange pipe 130 may be positioned at a lower side in the space 112 so as to be spaced apart from a lower portion of the first heat exchange pipe 120 .
  • the first and second heat exchange pipes 120 and 130 are provided such that the pipes are wound in, for example, a coil shape.
  • the coil shape increases heat exchange efficiency by widening an area of heat exchange contacting with water accommodated in the space 112 .
  • the heater 140 applies heat to the first heat exchange pipe 120 or the second heat exchange pipe 130 , and is configured to generate heat from, for example, electricity.
  • the heater 140 may be, for example, positioned at a center of the second heat exchange pipe 130 to supply heat to the second heat exchange pipe 130 .
  • a temperature measuring sensor (not shown) is provided in a third connection pipe 156 or the outlet part 116 , and a power switch (not shown), which turns on and off power of the heater 140 on the basis of a temperature measured by the temperature measuring sensor, may be further provided.
  • connection member 150 will be described in FIG. 4 .
  • the separating partition 160 is provided between the first heat exchange pipe 120 and the second heat exchange pipe 130 and is configured to cover an outer periphery of the second heat exchange pipe 130 .
  • the separating partition 160 includes a pair of sidewalls 162 protruding from a bottom of the inside of the inner housing 110 a to an upper portion thereof, with the second heat exchange pipe 130 and the heater 140 provided therebetween; and an upper wall 164 integrally connecting upper ends of the pair of the sidewalls 162 to each other.
  • the sidewall 162 and the upper wall 164 are provided in a plate shape, and the second heat exchange pipe 130 and the heater 140 are provided in a space formed by the sidewall 162 and the upper wall 164 .
  • a flow of hot water heated by heat exchange with the heater 140 or the second heat exchange pipe 130 which is the water accommodated in the space 112 of the housing 110 , is blocked by the separating partition 160 .
  • a temperature of the water located at the lower portion of the separating partition 160 is configured to be higher than the temperature of the water located around the first heat exchange pipe 120 . This will be described again in FIG. 5 .
  • the water supply member 170 controls a level of the water accommodated in the space 112 of the housing 110 to be kept constant.
  • the water supply member 170 may include: a float 172 installed to move up or down on the basis of the level of the water accommodated in the space 112 ; a float switch 174 that is hinge-coupled to the float 172 and adjusts a supply of water on the basis of a position of the float 172 ; and a supply pipe 176 for supplying water to the float switch 174 .
  • the float 172 is configured to float on a surface of the water accommodated in the space 112 by buoyancy of water.
  • the supply pipe 176 is connected to the inlet part 114 and supplies the water flowing into the housing 110 to the float switch 174 .
  • the float switch 174 blocks the water of the supply pipe 176 from being supplied to the space 112 when the float 172 rises above a predetermined height of the space 112 , whereas the water of the supply pipe 176 is supplied to the space 112 when the float 172 falls below the predetermined height of the space 112 .
  • the level of water accommodated in the space 112 by the water supply member 170 is kept constant.
  • FIG. 4 is a view illustrating the connection member of the electric water heater having the instantaneous hot water storage-type structure according to the preferred embodiment of the present invention
  • FIG. 5 is a view illustrating an operation of the electric water heater having the instantaneous hot water storage-type structure according to the preferred embodiment of the present invention.
  • connection member 150 may include: a first connection pipe 152 connecting the inlet part 114 to the first heat exchange pipe 120 ; a second connection pipe 154 connecting the first heat exchange pipe 120 to the second heat exchange pipe 130 ; and the third connection pipe 156 connecting the second heat exchange pipe 130 to the outlet part 116 .
  • the outside water supplied into the housing 110 through the inlet part 114 that is, direct water, such as tap water, is moved to the first heat exchange pipe 120 through the first connection pipe 152 .
  • direct water such as tap water
  • the water is accommodated in the space 112 of the housing 110 , and the water in the space 112 is configured to have a temperature higher than the direct water by the heater 140 .
  • the water moved to the first heat exchange pipe 120 undergoes heat exchange with the water accommodated in the space 112 of the housing 110 , and in the first place, the temperature thereof is increased.
  • the water moved along the first heat exchange pipe 120 is moved to the second heat exchange pipe 130 through the second connection pipe 154 .
  • the second heat exchange pipe 130 is provided with the heater 140
  • the water moved to the second heat exchange pipe 130 undergoes heat exchange with the heater 140 , and in the second place, the temperature thereof is increased.
  • the separating partition 160 is provided on an outer side of the second heat exchange pipe 130 , the flow of hot water heated by heat exchange with the heater 140 or the second heat exchange pipe 130 , which is the water accommodated in the housing 110 , is blocked by the separating partition 160 .
  • the heat of the hot water generated between the separating partition 160 and the second heat exchange pipe 130 does not transmit to an upper portion of the housing 110 , and heat exchange is performed with the second heat exchange pipe 130 .
  • the temperature of the water moving along the second heat exchange pipe 130 is increased.
  • the temperature of the water moved to the second heat exchange pipe 130 is doubly increased by the heater 140 and the separating partition 160 , and thus there is an effect that the temperature of the water flowing out from the outlet part 116 through the second heat exchange pipe 130 reaches a high temperature of 40° C. or more.
  • the water supplied into the housing 110 through the inlet part 114 is heated as hot water while passing through the first and second heat exchange pipes 120 and 130 . Therefore, there is an effect that a large amount of hot water is continuously, instantaneously provided without having to heat a large amount of water accommodated in the housing directly.
  • the present invention may further include: a connection pipe (not shown) in which one side thereof is connected to the inlet part 114 or the first connection pipe 152 and the other side thereof is connected to the outlet part 116 or the third connection pipe 156 ; a temperature measuring sensor (not shown) provided in the outlet part 116 and measuring a temperature of water passing through the outlet part 116 ; and a mixing valve (not shown) installed in the connection pipe to open or close the connection pipe.
  • a connection pipe (not shown) in which one side thereof is connected to the inlet part 114 or the first connection pipe 152 and the other side thereof is connected to the outlet part 116 or the third connection pipe 156 ; a temperature measuring sensor (not shown) provided in the outlet part 116 and measuring a temperature of water passing through the outlet part 116 ; and a mixing valve (not shown) installed in the connection pipe to open or close the connection pipe.
  • the mixing valve may be opened so that the cold water supplied through the inlet part 114 is allowed to be mixed with the water in the third connector 156 or the outlet part 116 .
  • FIG. 6 is a view schematically illustrating a state in which the first heat exchange pipe of the electric water heater having the instantaneous hot water storage-type structure according to the preferred embodiment of the present invention is configured in plural.
  • the electric water heater 102 having the instantaneous hot water storage-type structure may be provided with the first heat exchange pipes 120 and 122 in plural in order to further increase an efficiency of heat exchange of the first and second heat exchange pipes 120 and 122 on the basis of an internal size of the housing 110 and the like.
  • the connection member 150 may further include a sub connection pipe 153 which interconnects a pair of the adjacent first heat exchange pipes 120 and 122 to each other.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
US16/655,155 2017-06-16 2019-10-16 Electric water heater having instantaneous hot water storage-type structure Abandoned US20200049375A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1020170076724A KR101964605B1 (ko) 2017-06-16 2017-06-16 순간 저탕식 구조를 갖는 전기 온수기
KR10-2017-0076724 2017-06-16
PCT/KR2018/003229 WO2018230817A1 (ko) 2017-06-16 2018-03-20 순간 저탕식 구조를 갖는 전기 온수기

Related Parent Applications (1)

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PCT/KR2018/003229 Continuation WO2018230817A1 (ko) 2017-06-16 2018-03-20 순간 저탕식 구조를 갖는 전기 온수기

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US16/655,155 Abandoned US20200049375A1 (en) 2017-06-16 2019-10-16 Electric water heater having instantaneous hot water storage-type structure

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US (1) US20200049375A1 (zh)
EP (1) EP3640563A4 (zh)
KR (1) KR101964605B1 (zh)
CN (1) CN110546439A (zh)
WO (1) WO2018230817A1 (zh)

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USD896934S1 (en) * 2018-10-11 2020-09-22 Kyungdong Navien Co., Ltd. Hot water boiler for hot water mat
USD896933S1 (en) * 2018-10-11 2020-09-22 Kyungdong Navien Co., Ltd. Hot water boiler for hot water mat
USD906037S1 (en) * 2019-07-11 2020-12-29 Houbing Yuan Constant temperature heater

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* Cited by examiner, † Cited by third party
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USD896934S1 (en) * 2018-10-11 2020-09-22 Kyungdong Navien Co., Ltd. Hot water boiler for hot water mat
USD896933S1 (en) * 2018-10-11 2020-09-22 Kyungdong Navien Co., Ltd. Hot water boiler for hot water mat
USD906037S1 (en) * 2019-07-11 2020-12-29 Houbing Yuan Constant temperature heater

Also Published As

Publication number Publication date
EP3640563A1 (en) 2020-04-22
KR101964605B1 (ko) 2019-04-02
KR20180137275A (ko) 2018-12-27
WO2018230817A1 (ko) 2018-12-20
EP3640563A4 (en) 2021-03-03
CN110546439A (zh) 2019-12-06

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