US20160313026A1 - Heat Exchanger, Heating Device, Heating System and Method for Heating Water - Google Patents

Heat Exchanger, Heating Device, Heating System and Method for Heating Water Download PDF

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Publication number
US20160313026A1
US20160313026A1 US15/102,165 US201415102165A US2016313026A1 US 20160313026 A1 US20160313026 A1 US 20160313026A1 US 201415102165 A US201415102165 A US 201415102165A US 2016313026 A1 US2016313026 A1 US 2016313026A1
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Prior art keywords
conduit circuit
heat
conducting material
conduit
fluid
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US15/102,165
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English (en)
Inventor
Peter Jan Cool
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Intergas Heating Assets BV
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Intergas Heating Assets BV
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Assigned to INTERGAS HEATING ASSETS B.V. reassignment INTERGAS HEATING ASSETS B.V. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: COOL, PETER JAN
Publication of US20160313026A1 publication Critical patent/US20160313026A1/en
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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
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/44—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40 , e.g. boilers having a combination of features covered by F24H1/24 - F24H1/40
    • 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
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • F24D11/02—Central heating systems using heat accumulated in storage masses using heat pumps
    • F24D11/0214—Central heating systems using heat accumulated in storage masses using heat pumps water heating system
    • F24D11/0221—Central heating systems using heat accumulated in storage masses using heat pumps water heating system combined with solar energy
    • 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
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
    • F24H1/41—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes in serpentine form
    • 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
    • F24H1/48—Water heaters for central heating incorporating heaters for domestic water
    • F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic 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
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F24H9/0026—Guiding means in combustion gas channels
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/08—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag
    • F28D7/082—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration
    • F28D7/085—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being otherwise bent, e.g. in a serpentine or zig-zag with serpentine or zig-zag configuration in the form of parallel conduits coupled by bent portions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element
    • F28F3/048—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F7/00—Elements not covered by group F28F1/00, F28F3/00 or F28F5/00
    • F28F7/02—Blocks traversed by passages for heat-exchange media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/14—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded
    • F28F2255/146—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded overmolded
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies

Definitions

  • the invention relates to a heat exchanger and to a heating device provided with such a heat exchanger, a heating system, and to a method for application thereof.
  • Heat exchangers find application in many cooling and heating devices.
  • Known heating devices are for instance a heating boiler for heating the central heating water (CH water) and a geyser or boiler for heating tap water.
  • a geyser is a throughflow water heater which heats the water as the water flows therethrough, while a boiler is a hot water supply device which has a hot water storage.
  • Combi-boilers which combine the above-mentioned heating boiler with a geyser or boiler.
  • An advantage thereof is that both the water for the CH installation and the tap water are heated with a single heat source, such as a burner. Because only a single heat source is applied, space is on the one hand saved and it is on the other hand advantageous from a cost viewpoint to dispense with a second heat source.
  • a particularly advantageous heat exchanger and hot water heating device provided therewith is proposed by applicant in their Netherlands patent NL 1035654.
  • This heat exchanger is manufactured from a heat-conducting material and comprises transverse fins and longitudinal fins for guiding a fluid and for transferring heat between the fluid and the heat exchanger, a first conduit for guiding a second fluid, a second conduit for guiding a third fluid, wherein the first and second conduits are recessed into the heat-conducting material of the heat exchanger. Because this heat exchanger combines fins and two conduits, a heat exchange can take place between three fluids.
  • the heat exchanger of NL1035654 is hereby particularly suitable for application in a combi-boiler, wherein the fluids flowing through the two conduits are CH water and tap water.
  • the invention now has for its object to provide a heat exchanger and a heating device of the above described type, wherein said drawbacks do not occur, or at least do so to lesser extent.
  • the heat exchanger for a heating device comprises according to the invention:
  • first conduit circuit and the second conduit circuit are both arranged in a heat-conducting material
  • heat-conducting material is provided on a first side with fins for transferring heat between a third fluid and at least the first conduit circuit, so that during use a heat transfer can take place between the third fluid and the first fluid flowing through the first conduit circuit;
  • first conduit circuit substantially defines a plane arranged substantially parallel to and close to the first side of the heat-conducting material
  • the second conduit circuit is arranged substantially along the first conduit circuit so that during use a heat transfer can take place between the second fluid and the first fluid flowing through the first conduit circuit;
  • the second conduit circuit extends substantially along only a limited part of the plane defined by the first conduit circuit.
  • a ‘limited part of the plane defined by the first conduit circuit’ is understood to mean that the second conduit circuit extends less far into the heat-conducting material of the heat exchanger.
  • first conduit circuit extends a height H 1 into the heat-conducting material and the second conduit circuit has a height H 2 , then H 2 ⁇ H 1 .
  • the preamble of claim 1 is known from combi-boilers supplied by applicant such as known from, among others, NL1035654. Because it is desired in the case of heat exchangers to achieve the most optimal possible heat transfer, in the heat exchanger shown in NL1035654 the conduit circuits between which heat transfer has to take place are placed close together over substantially the whole length of the heat exchanger—see in particular FIG. 2 of NL1035654.
  • the heat exchanger according to the invention is distinguished from the heat exchanger of NL1035654 precisely in that—counter-intuitively—two conduit circuits arranged adjacently of each other in heat-exchanging contact have significantly different lengths.
  • This unusual structural solution provides the option of utilizing two separate heat sources, wherein an undesired heating of the one heat source with the other heat source is prevented or significantly reduced. It is hereby possible to apply two heat sources with different capacities, without the strongest heat source heating the weaker heat source and thermal energy thereby being lost.
  • the invention particularly provides a heat exchanger which integrates a gas-liquid heat exchanger and a liquid-liquid heat exchanger. Exceptional here is that the secondary liquid of both types of heat exchanger is the same, i.e. tap water and/or CH water. Both types of heat exchanger can be used, wherein the construction is such that the heat exchangers have a minimal adverse effect on each other when one of the two is for instance not in use. It can thus be envisaged that it is possible in autumn and spring under most conditions of use to suffice with heat supplied via a heat pump, whereby the gas burner need then be employed minimally for further additional heating.
  • the gas burner can be supported by a natural heat source such as a heat pump or solar collector. Because it is however also possible to envisage that an air heat pump or solar collector will make a minimal contribution during some periods, it may occur that the fluid in the second and/or fourth conduit circuit is at a temporary standstill. In order to prevent the fluid boiling or chemically disintegrating, the second and/or fourth conduit circuit extend for only a limited part in the plane defined by the first conduit circuit and are arranged at least not directly behind the burner.
  • the heat-conducting material of the heat exchanger can be manufactured from a single piece, if desired with the fins at least partially integrated thereon.
  • the second conduit circuit is at least 20% shorter than the first conduit circuit.
  • the length of a conduit circuit is defined in this application as the total pipe length present inside the heat exchanger, so from the inlet opening of a conduit circuit to the outlet opening thereof in the heat-conducting material of the heat exchanger.
  • the first conduit circuit is arranged between the second conduit circuit and the first side of the heat-conducting material, wherein this first side is provided with the fins.
  • the third fluid flowing along the fins on the first side of the heat-conducting material as well as the second fluid flowing through the second conduit circuit can be utilized as heat source for heating the first fluid flowing through the first conduit circuit during use.
  • the second conduit circuit which is arranged on the side of the first conduit circuit remote from the first side of the heat-conducting material, to be shielded to some extent here by the first conduit circuit from the heat generated by the third fluid.
  • the third fluid is combustion gases and the second conduit circuit is connected to a natural heat source such as a heat pump or a solar collector, it is hereby possible to prevent thermal energy extracted from the third fluid being discharged.
  • the proposed arrangement of conduit circuits thus increases the energy efficiency of the heat exchanger.
  • the heat exchanger further comprises a third conduit circuit for guiding a fourth fluid which is also arranged in the heat-conducting material of the heat exchanger.
  • the invention can if desired be provided with further conduit circuits configured for connection of a further heat source thereto.
  • the device according to a further preferred embodiment thus comprises a fourth conduit circuit for guiding a fifth fluid which is also arranged in the heat-conducting material of the heat exchanger. Because the device is now provided with a fourth conduit circuit, two additional heat sources, for instance the above discussed heat pump and solar collector, can be connected simultaneously.
  • the third conduit circuit is arranged between the first side of the heat-conducting material, which side is provided with the fins, and the second conduit circuit and/or the fourth conduit circuit.
  • the third conduit circuit which is intended for the purpose of connection to a water consumer of a hot water device, has the advantage just as the first conduit circuit that it can be heated individually, or if desired together, via two or even three different heat sources.
  • the first conduit circuit and the third conduit circuit are arranged substantially in the same plane and define an interwoven pattern.
  • both the first conduit circuit and the third conduit circuit which are both intended for connection to a hot water consumer in a hot water device, are in optimal heat-exchanging contact with the heat sources of this same hot water device: respectively the third fluid flowing along the fins and the second fluid flowing through the second conduit circuit.
  • the first conduit circuit and the third conduit circuit together shield the second and/or fourth conduit circuit, which can for instance be intended for a heat pump, from the fins. The energy efficiency is further improved with this configuration: on the one hand owing to this shielding, and on the other hand there is a better heat transfer from respectively the second and third fluid to the first and fourth fluid.
  • the length of the third conduit circuit is substantially the same as the length of the first conduit circuit.
  • the length of the third conduit circuit is greater than the length of the second conduit circuit and/or the length of the fourth conduit circuit inside the heat-conducting material, and the length of the second and/or the fourth conduit circuit differs by at least 10% from the length of the first conduit circuit.
  • the longest conduit circuit is connected to the water consumer for which the greatest capacity is desired. If as in the case of the above-mentioned trend there is a greater need for hot tap water than for hot CH water, the longest conduit circuit is connected to the tap water circuit.
  • the invention further relates to a heating device, comprising:
  • a first heat source arranged in the housing and comprising at least one burner, wherein the burner is arranged close to the first side of the heat-conducting material provided with the fins and wherein the combustion gases of the at least one burner form the third fluid, which flows during use from the burner side via the fins and along the first side of the heat-conducting material to a discharge side of the housing, and heat transfer can take place here between the third fluid and the heat-conducting material;
  • first conduit circuit arranged in the heat-conducting material for guiding the first fluid is provided with a first inlet opening and a first outlet opening;
  • the second conduit circuit arranged in the heat-conducting material for guiding the second fluid is provided with a second inlet opening and a second outlet opening.
  • the fins extend from a first side, which is arranged close to one or more burners in a situation in which the heat exchanger is mounted in a hot water appliance, in longitudinal direction along the first side of the heat-conducting material and in the direction of a combustion gas discharge side of the hot water appliance.
  • the second inlet opening and the second outlet opening of the second conduit circuit are arranged close to the discharge side of the housing lying opposite the burner side, and wherein the second conduit circuit extends therefrom to a distance from the one or more burners such that the second medium flowing through the second conduit circuit remains substantially unaffected by the heat generated by the one or more burners.
  • This construction achieves that the second conduit circuit extends only in the relatively cold part of the heat exchanger. This prevents the one or more gas burners heating the second conduit circuit, which may for instance be intended for coupling to a heat pump, and the second fluid present therein during use.
  • the heating device further comprises a fourth conduit circuit arranged in the heat-conducting material for guiding a fifth fluid, which is provided with a fourth inlet opening and a fourth outlet opening.
  • a fourth conduit circuit arranged in the heat-conducting material for guiding a fifth fluid, which is provided with a fourth inlet opening and a fourth outlet opening.
  • Two additional heat sources such as a heat pump and a solar collector, can thus be connected to the heating device in addition to the gas burner.
  • the fourth inlet opening and the fourth outlet opening of the fourth conduit circuit are arranged close to the discharge side of the housing lying opposite the burner side, and the fourth conduit circuit extends therefrom to a distance from the one or more burners such that the fifth medium flowing through the fourth conduit circuit remains substantially unaffected by the heat generated by the one or more burners.
  • the invention further relates to a heating system, comprising:
  • first conduit circuit is connected via the first inlet opening and first outlet opening to a hot water consumer
  • the hot water consumer connected to the first conduit circuit is a CH water consumer or a tap water consumer.
  • the heat source connected to the second conduit circuit comprises a solar collector or a heat pump, in particular an air heat pump or a ground heat pump.
  • the heating device By providing the heating device with a second heat source in the form of a heat pump a natural and inexhaustible energy source can be utilized to heat or preheat CH water and/or tap water. A further energy-saving is realized in environmentally friendly manner by utilizing heat in the ambient air or ground heat. The heat generated with a heat pump moreover has no CO2 emission.
  • the heat exchanger further comprises a third conduit circuit for guiding a fourth fluid which is also arranged in the heat-conducting material of the heat exchanger, wherein the third conduit circuit is provided with a third inlet opening and a third outlet opening with which it is connected to a hot water consumer.
  • the heating system is connectable simultaneously to two hot water consumers, so both a CH water consumer and a tap water consumer, a second heat source can thus be added to a conventional combi-boiler.
  • the heating device can hereby utilize as required one heat source chosen from the available heat sources or, if desired, even both at the same time for the heat exchange between the different fluids.
  • the hot water consumers connected to the first conduit circuit and the second conduit circuit comprise a CH water consumer and a tap water consumer.
  • the CH water consumer can be connected to the first conduit circuit and the tap water consumer to the second conduit circuit, or vice versa. If the two circuits have a differing length and/or flow rate, the water consumer for which the greatest capacity is desired is connected to the circuit with the greatest length and/or the highest flow rate.
  • the heat exchanger further comprises a fourth conduit circuit for guiding a fifth fluid which is also arranged in the heat-conducting material of the heat exchanger;
  • the fourth conduit circuit is provided with a fourth inlet opening and a fourth outlet opening with which it is connected to a heat source.
  • the heat source connected to the fourth conduit circuit comprises a heat pump or a solar collector.
  • the invention relates to a method for heating water of a water consumer using a heating system described in the foregoing, comprising the steps of:
  • a natural and inexhaustible energy source is utilized by providing the heating device with a second heat source in the form of a heat pump or a solar collector.
  • the method further comprises the step of transferring heat via the heat-conducting material to a third conduit circuit which is likewise arranged in the heat-conducting material close to the second conduit circuit and to which a further hot water consumer is connected.
  • the method further comprises the step of heating the heat-conducting material with at least one burner in order to heat the first fluid flowing through the first conduit circuit and/or the fourth fluid flowing through the third conduit circuit.
  • the water to be heated can be preheated using a heat pump, after which it flows past a burner which heats the water further to the desired water temperature.
  • the burner can for this purpose switch on for several seconds in pulse-wise manner so as to impart an extra heat boost to water already preheated by the heat pump.
  • FIG. 1 is a schematic view provided with a heating system according to the invention
  • FIG. 2 is a cut-away perspective view of a heating device according to a first embodiment of the invention
  • FIG. 3 is a schematic view of the heating device shown in FIG. 2 ;
  • FIG. 4 is a cross-sectional view of the heating device shown in FIGS. 2 and 3 ;
  • FIG. 5 is a cut-away perspective view of a heating device according to a second embodiment of the invention.
  • FIGS. 6 and 7 are side views of the heating device shown in FIG. 5 ;
  • FIGS. 8 and 9 are perspective views of the conduit circuits of the embodiment shown in FIG. 5 ;
  • FIG. 10 is a side view of a further preferred embodiment with a fourth conduit circuit.
  • a heating system 70 according to the invention is arranged in the building 80 shown in FIG. 1 .
  • Heating system 70 is connected to a heat pump 72 and a solar collector 74 , which function as environmentally friendly heat sources for heating water which can then be used by hot water consumers, such as the CH system with heating radiator 82 , and shower 84 and bath 86 .
  • Solar collector 74 is preferably provided with a buffer vessel 76 .
  • heat pump 72 and solar collector 74 can be applied separately of each other or in combination as heat source.
  • heating system 70 is formed by a heating device 50 which comprises a heat exchanger 1 received in a housing 52 .
  • Heat exchanger 1 can be heated with one or more gas burners 54 .
  • a fan 58 draws in via a gas mixing pipe 60 a gas mixture prepared by a gas block 62 .
  • Gas block 62 obtains gas via gas feed pipe 64 .
  • An air feed 56 is provided on the upper side of housing 52 ( FIG. 2 ).
  • the heat-conducting material 2 of heat exchanger 1 is shown transparently in the figure, whereby the conduit circuits 28 and 38 arranged therein are visible.
  • the third conduit circuit 38 in the shown embodiment is intended for hot tap water and comprises a third inlet opening 40 , through which relatively cool tap water enters heat exchanger 1 , and a third outlet opening 42 through which the tap water heated in heat exchanger 1 exits heat exchanger 1 .
  • FIG. 3 shows a hot water appliance which supplies only hot tap water, but that a hot water device 50 which supplies only hot CH water can be assembled in similar manner
  • the third conduit circuit 38 is a circuit for tap water and the first conduit circuit 18 is a circuit for CH water. It is expressly noted that the skilled person will appreciate that within the inventive concept these types of hot water can be switched whereby third conduit circuit 38 and first conduit circuit 18 are wholly interchangeable.
  • a second conduit circuit 28 through which flows hot water supplied by a heat pump 72 .
  • This hot water enters heat exchanger 1 via second inlet opening 30 .
  • this hot water relinquishes heat via second conduit circuit 28 to heat-conducting material 2 , which conducts the heat to a conduit circuit of a hot water consumer 82 , 84 , 86 .
  • the heat coming from the second fluid F 2 flowing through second conduit circuit 28 is transferred to the fourth fluid, i.e. the tap water, flowing through third conduit circuit 38 .
  • FIG. 4 shows in cross-section how third conduit circuit 38 , through which the water of the water consumer—in this case the tap water—flows, is arranged between second conduit circuit 28 and the first side 4 of the heat-conducting material 2 of heat exchanger 1 .
  • the first side 4 of heat exchanger 1 heated by the third fluid F 3 coming from gas burners 54 and the second conduit circuit 28 are both arranged close to third conduit circuit 38 due to this intermediate placing of third conduit circuit 38 . They can thus both function, individually or together, as heat source for heating the fourth fluid F 4 flowing through this third conduit circuit 38 .
  • third conduit circuit 38 has the further advantage that second conduit circuit 28 is shielded by third conduit circuit 38 from the first side 4 of heat exchanger 1 heated by third fluid F 3 .
  • First side 4 of heat exchanger 1 is provided with transverse fins 10 and longitudinal fins 12 which guide the hot combustion gases coming from burners 54 and forming third fluid F 3 along this first side 4 such that an optimal heat transfer from third fluid F 3 to heat-conducting material 2 of heat exchanger 1 is obtained.
  • Combustion gases F 3 flow here from a burner side 6 of first side 4 to a discharge side 8 of first side 4 .
  • a combustion gas outlet opening 66 is provided close to this discharge side 8 .
  • FIG. 5 A particularly advantageous embodiment is shown in FIG. 5 , where two conduit circuits 18 , 38 connected to water consumers are provided.
  • the operation of the embodiment shown in FIGS. 5-9 is similar to that of the already described embodiment, but is further expanded.
  • a combi-boiler is hereby obtained which can have the advantages of being augmented with an additional heat source, preferably in the form of an environmentally friendly heat pump.
  • a first conduit circuit 18 is now also provided through which a first fluid Fl flows.
  • This first fluid F 1 is CH water which flows via a first inlet opening 20 into and—after having been heated—exits heat exchanger 1 via a first outlet opening 22 .
  • FIGS. 6 and 7 show how the two conduct circuits 18 , 38 connected to water consumers are both arranged substantially in the same plane 44 .
  • they are hereby both in good heat-exchanging contact with the two heat sources: the first side 4 of heat exchanger 1 heated by the hot third fluid F 3 , and the second conduit circuit 28 .
  • they also shield second conduit circuit 28 from undesired heating.
  • conduit circuits 18 , 28 , 38 are arranged as close together as possible and that second conduit circuit 28 is considerably shorter than conduit circuits 18 , 38 which are in contact with hot water consumers.
  • second conduit circuit 28 is considerably shorter than conduit circuits 18 , 38 ( FIGS. 8 and 9 ) and extends substantially only along a limited part of the plane defined by first conduit circuit 18 and/or third conduit circuit 38 ( FIGS. 4, 7 and 8 ), an undesired heating of the one heat source by the other heat source is prevented or significantly reduced. It is hereby possible to apply two heat sources with different capacities without the stronger heat source heating the weaker heat source and thermal energy thereby being lost. Also prevented is that the fluid F 2 , F 5 associated with a weaker heat source—which may be temporarily switched off—begins to boil or is heated such that a chemical disintegration takes place.
  • FIGS. 4, 7 and 9 show how far the different conduit circuits 18 , 28 , 38 extend into heat-conducting material 2 of heat exchanger 1 .
  • First conduit circuit 18 thus extends over a height H 1
  • second conduit circuit 28 and third conduit circuit 38 extend over a height of respectively H 2 and H 3 .
  • height H 2 is smaller than height H 1 , i.e. H 2 ⁇ H 1 .
  • H 2 ⁇ H 3 It is also the case that H 2 ⁇ H 3 .
  • heat exchanger 1 is provided with transverse fins 10 and longitudinal fins 12 .
  • Longitudinal fins 12 have a variation in height: at the position of burner 54 they have a relatively limited height, and this height of longitudinal fins 12 increases the further longitudinal fins 12 are removed from burner 54 .
  • the fin height of longitudinal fins 12 is designed such that the maximum allowable operating temperature is reached in substantially the whole upper part of heat exchanger 1 . Measured at the position of plane 44 of first conduit circuit 18 and third conduit circuit 38 , this is typically about 120° C.
  • height H 2 to which second conduit circuit 28 extends into heat-conducting material 2 of heat exchanger 1 extends in a further preferred embodiment substantially within the range in which longitudinal fins 12 of heat exchanger 1 have their maximum height.
  • FIG. 10 shows a side view greatly resembling that of FIG. 7 , with the understanding that a fourth conduit circuit 46 for guiding a fifth fluid F 5 is also arranged in heat-conducting material 2 of heat exchanger 1 .
  • heat exchanger 1 of FIG. 10 comprises both a second conduit circuit 28 and a fourth conduit circuit 46 , it is possible in heat exchanger 1 to connect to two different heat sources: for instance a heat pump 72 and a solar collector 74 , or two heat pumps of different types, such as an air heat pump and a ground heat pump.
  • the height to which the fourth conduit circuit extends into heat-conducting material 2 of heat exchanger 2 substantially corresponds to the height H 2 of second conduit circuit 28 .

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Details Of Fluid Heaters (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Sorption Type Refrigeration Machines (AREA)
US15/102,165 2013-12-13 2014-12-12 Heat Exchanger, Heating Device, Heating System and Method for Heating Water Abandoned US20160313026A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL2011960 2013-12-13
NL2011960A NL2011960C2 (nl) 2013-12-13 2013-12-13 Warmtewisselaar, verwarmingsinrichting, verwarmingssysteem en werkwijze voor de toepassing daarvan.
PCT/NL2014/050854 WO2015088343A1 (fr) 2013-12-13 2014-12-12 Échangeur de chaleur, dispositif de chauffage, système de chauffage et procédé pour chauffer de l'eau

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US20160313026A1 true US20160313026A1 (en) 2016-10-27

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US (1) US20160313026A1 (fr)
EP (1) EP3090213B1 (fr)
JP (1) JP6531099B2 (fr)
KR (1) KR102238465B1 (fr)
CA (1) CA2931503A1 (fr)
ES (1) ES2940237T3 (fr)
NL (1) NL2011960C2 (fr)
PL (1) PL3090213T3 (fr)
PT (1) PT3090213T (fr)
RU (1) RU2665196C1 (fr)
UA (1) UA118690C2 (fr)
WO (1) WO2015088343A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190234653A1 (en) * 2016-07-26 2019-08-01 Noritz Corporation Heating and hot water supply device
US10767898B2 (en) * 2017-11-30 2020-09-08 Hong Yuan International Co., Ltd. Portable hot water supply tank
US11029039B2 (en) * 2016-11-25 2021-06-08 Noritz Corporation Heating and hot water supplying device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11359837B2 (en) 2016-02-01 2022-06-14 Intergas Heating Assets B.V. Hot water appliance, flue gas discharge therefor and method for heating a fluid

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US3295598A (en) * 1965-01-14 1967-01-03 Stanley Knight Corp Heat exchanger assembly and method of forming same
US5941238A (en) * 1997-02-25 1999-08-24 Ada Tracy Heat storage vessels for use with heat pumps and solar panels
US6047767A (en) * 1998-04-21 2000-04-11 Vita International, Inc. Heat exchanger
US20050092472A1 (en) * 2003-11-03 2005-05-05 Larry Lewis Heat exchange system
US20110108253A1 (en) * 2008-07-03 2011-05-12 Peter Jan Cool Heat Exchanger
US20130206374A1 (en) * 2010-03-15 2013-08-15 The Trustees Of Dartmouth College Geometry of heat exchanger with high efficiency
EP2896920A1 (fr) * 2014-01-17 2015-07-22 Daikin Europe N.V. Échangeur de chaleur et chauffage comprenant l'échangeur de chaleur

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EP0190572A3 (fr) * 1985-01-31 1988-05-11 Joh. Vaillant GmbH u. Co. Source de chaleur chauffée par combustible
FR2681670B1 (fr) * 1991-09-19 1993-12-03 Elm Leblanc Echangeur mixte chauffage-eau chaude, a serpentin de rechauffage sanitaire sans soudure.
NL1003215C2 (nl) * 1996-05-28 1997-12-03 Apparatenfabriek Warmtebouw B Uit een geheel bestaande, gecombineerde warmtewisselaar.
DE19628818A1 (de) * 1996-07-17 1998-01-22 Alois Sauter Heizungsanlage
JP2000304352A (ja) * 1999-04-23 2000-11-02 Matsushita Electric Ind Co Ltd 燃焼装置
DE102005033682A1 (de) * 2004-11-15 2006-05-24 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Wärmespeicher sowie Verwendung des Wärmespeichers in einem Heizungssystem mit Solaranlage und Wärmepumpe
JP2008076002A (ja) * 2006-09-23 2008-04-03 Noritz Corp 熱交換器
ES2665566T3 (es) * 2010-12-08 2018-04-26 Daikin Europe N.V. Calefacción

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3295598A (en) * 1965-01-14 1967-01-03 Stanley Knight Corp Heat exchanger assembly and method of forming same
US5941238A (en) * 1997-02-25 1999-08-24 Ada Tracy Heat storage vessels for use with heat pumps and solar panels
US6047767A (en) * 1998-04-21 2000-04-11 Vita International, Inc. Heat exchanger
US20050092472A1 (en) * 2003-11-03 2005-05-05 Larry Lewis Heat exchange system
US20110108253A1 (en) * 2008-07-03 2011-05-12 Peter Jan Cool Heat Exchanger
US20130206374A1 (en) * 2010-03-15 2013-08-15 The Trustees Of Dartmouth College Geometry of heat exchanger with high efficiency
EP2896920A1 (fr) * 2014-01-17 2015-07-22 Daikin Europe N.V. Échangeur de chaleur et chauffage comprenant l'échangeur de chaleur

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190234653A1 (en) * 2016-07-26 2019-08-01 Noritz Corporation Heating and hot water supply device
US11029039B2 (en) * 2016-11-25 2021-06-08 Noritz Corporation Heating and hot water supplying device
US10767898B2 (en) * 2017-11-30 2020-09-08 Hong Yuan International Co., Ltd. Portable hot water supply tank

Also Published As

Publication number Publication date
UA118690C2 (uk) 2019-02-25
EP3090213A1 (fr) 2016-11-09
CA2931503A1 (fr) 2015-06-18
ES2940237T3 (es) 2023-05-04
JP2017503138A (ja) 2017-01-26
KR20160097207A (ko) 2016-08-17
PT3090213T (pt) 2023-03-29
JP6531099B2 (ja) 2019-06-12
RU2665196C1 (ru) 2018-08-28
PL3090213T3 (pl) 2023-04-17
WO2015088343A1 (fr) 2015-06-18
EP3090213B1 (fr) 2023-02-01
KR102238465B1 (ko) 2021-04-09
NL2011960C2 (nl) 2015-06-16

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