EP3827205A1 - New type water heater with buffer tank - Google Patents

New type water heater with buffer tank

Info

Publication number
EP3827205A1
EP3827205A1 EP19708355.3A EP19708355A EP3827205A1 EP 3827205 A1 EP3827205 A1 EP 3827205A1 EP 19708355 A EP19708355 A EP 19708355A EP 3827205 A1 EP3827205 A1 EP 3827205A1
Authority
EP
European Patent Office
Prior art keywords
water heater
container
buffer tank
water
new type
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP19708355.3A
Other languages
German (de)
French (fr)
Inventor
Makarios TSOPOULIDIS
Original Assignee
Tsopoulidis, Makarios
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to GR20180100343A priority Critical patent/GR20180100343A/en
Application filed by Tsopoulidis, Makarios filed Critical Tsopoulidis, Makarios
Priority to PCT/GR2019/000005 priority patent/WO2020021293A1/en
Publication of EP3827205A1 publication Critical patent/EP3827205A1/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/18—Water-storage heaters
    • F24H1/181—Construction of the tank
    • F24H1/182—Insulation
    • 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
    • F24D11/002—Central heating systems using heat accumulated in storage masses water heating system
    • F24D11/004—Central heating systems using heat accumulated in storage masses water heating system with conventional supplementary heat source
    • 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
    • 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
    • F24H1/208—Water-storage heaters with immersed heating elements, e.g. electric elements or furnace tubes with tubes filled with heat transfer fluid
    • 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
    • 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
    • F24H7/0208—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 using electrical energy supply
    • F24H7/0233—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 using electrical energy supply the transfer fluid 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
    • 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
    • F24H9/06—Arrangement of mountings or supports for heaters, e.g. boilers, other than space heating radiators
    • 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
    • F28D20/0039—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 with stratification of the heat storage material
    • 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
    • F28D7/02—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 helically coiled
    • F28D7/022—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 helically coiled the conduits of two or more media in heat-exchange relationship being helically coiled, the coils having a cylindrical configuration
    • 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
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/08—Electric heater
    • 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
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/32—Heat sources or energy sources involving multiple heat sources in combination or as alternative heat sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2220/00—Components of central heating installations excluding heat sources
    • F24D2220/08—Storage tanks
    • 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
    • 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
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Abstract

The invention relates to a water heater with buffer tank, which consists of an outer container (1) and an inner container (2) with an insulating material (3) between them. The containers are sealed with a lid (13). The containers have electrical and hydraulic ends for connection to existing systems. Inside the inner container there are individual or combined heat exchangers for hot water use (9), a hot water boiler (10), geothermal energy and heat pump (11), as well as a solar energy exchanger (12). Internally, there are one or more single-phase or three-phase resistors (4).

Description

DESCRIPTION
NEW TYPE WATER HEATER WITH BUFFER TANK
FIELD OF ART
The invention relates to water heating systems, more particularly to hot water production systems and more particularly to hot water production systems that heat and store hot water for exploitation and use.
BACKGROUND OF THE INVENTION
The water heater with buffer tank disclosed in the present invention has not been disclosed in the prior art.
It is known that buffer tanks are reservoirs that act as additional spaces for storing water in heating installations. Buffer tanks are connected in series with the boiler or with the solar panels, and because of their very good thermal insulation they maintain the high water temperature for a long time. The purpose of the buffer tanks is to store hot water when it is produced during the operation of a boiler of any type, heat pump or solar collector and to supply hot water when the boiler or heat pump stops operating or when the sun sets and the solar collector now stops producing hot water. To date, most buffer tanks are made of metal and enamelled, that is, carry a glass coating that is chemically bonded to the metal at high temperatures, about 850 degrees Celsius. However, enamel can often detach, resulting in difficult repair and ultimate corrosion of the tank. A further disadvantage of water heaters with buffer tanks placed on the market is that the water contained therein is water which is intended either for use or for heating. The result is that water continuously circulates inside the water heater and the buffer tank. This continuous circulation results in the accumulation, over time, of both salts and sediments, mainly sludge, inside the tanks. In addition, the water inside the tanks is under pressure, resulting in component stress and shorter life span.
Finally, a further drawback, mainly due to the need for manufacturing pressurized containers, is the need to manufacture them in a cylindrical shape. This, especially in applications requiring thousands of litres, such as hotel units, is often a problem both in installing and possibly replacing the tanks as they cannot easily pass through to the installation site.
It is therefore an object of the present invention to advantageously overcome the aforementioned disadvantages and shortcomings of the prior art by proposing a new type of water heater with buffer tank.
It is a further object of the present invention to provide a water heater with buffer tank which exploits the solar energy, a boiler’s hot water, the electricity, a heat pump or the thermal energy derived from geothermal energy, offering a variety of alternatives.
It is a further object of the present invention to provide a new type of water heater with buffer tank which can perfectly meet the needs of heating, energy and hot water storage for any home or business premises such as a hotel.
It is a further object of the invention to provide a new type of water heater with buffer tank, wherein the two containers are separated by means of thermal insulation, such as cast glass wool polyurethane, stone wool, ceramics, expanded polystyrene or any other suitable insulation.
It is a further object of the invention to provide a water heater with buffer tank, which is filled with water stored therein permanently, without requiring any change or further filling.
Another feature of the invention is the addition to the water, for reasons of usability, of materials that improve its energy transmission behaviour and its clarity, or that are added for aesthetic reasons as well as antifreeze to improve its resistance to low temperatures.
An advantage of the present invention is also the operation of the system at atmospheric pressure, resulting in longer life span due to reduced stress. A further advantage, resulting from the above, is the possibility of constructing a water heater and buffer tank in the shape of a rectangular parallelepiped, which can pass through doors, and not just of a cylindrical shape, as is done to date.
It is also an advantage of the present invention that the hydraulic and electrical connections of the water heater are compatible with the state-of- art common heaters and common buffer tanks, thus ensuring the easy connection and the trouble-free installation of the heater of the present invention to existing plants.
These and other objects, features and advantages of the invention will become apparent in the following detailed description.
BRIEF DESCRIPTION OF THE DRAWINGS
The invention will become apparent to those skilled in the art with reference to the accompanying drawings in which the invention is illustrated in an exemplary, non-limiting manner.
Figure 1 is a cross-sectional view of the new type water heater with buffer tanks of the invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring now to the accompanying drawing, we will illustrate exemplary embodiments of the new type water heater with a buffer tank of the invention in order to disclose its features and advantages. The new type water heater, with buffer tanks, of the invention consists of an outer container (1), Fig. 1, and an inner container (2). The two containers are made of a suitable plastic material, such as polyethylene or polypropylene, or any other plastic raw material. A suitable insulating material (3) is put in the space between the two containers. Examples of such materials are cast polyurethane, glass wool, stone wool, ceramic wool, as well as expanded polystyrene or any other suitable insulation. The capacity of this water heater and thus of the containers thereof can range from 300 litres to, for example, 5000 litres, but there is no limitation in constructing a water heater with a smaller or larger capacity. The outer container (1) body can also be made of a new technology two-component polyethylene feedstock, allowing the container with the insulating material (3) to be made in one step.
One or more, single-phase or three-phase, resistors (4) with an output power of 1,5 to 100 kW, are placed inside the inner container (2). Between the two tanks there are hydraulic sockets to place a thermometer (5), but also a sensor cup (6). Finally there is a hydraulic drainage mouth (7) at the bottom of the containers. The new water heater system with the buffer tank of the invention is installed on supports (8) which are individually adjustable for fitting in every space, regardless of the inclination of the respective floor. Inside the container (2) heat exchangers are located. They can take advantage of different energy production methods, representing a hot water production heat exchanger (9), an exchanger for energy produced by a hot water boiler (10), an exchanger for geothermal energy and a heat pump (11), as well as an exchanger for solar energy (12). All of the above may exist individually or in combination, depending on the requirements and application of the system. The exchangers to be used may be metallic, copper or plastic, and their shape may be varied, being round or square, or of any other suitable shape serving the heat transfer process. At the top of the containers there is a lid (13) which insulates and seals the containers while allowing easy access for possible service, extension or conversion in general of the system. Further, all the hydraulic and electrical connections of the new water heater of the invention have side edges that are compatible with all conventional components and systems of current technology, making it easy to place the system in existing as well as in new installations.
The inner container (2) is filled with water, which acts as a storage and energy carrier between the exchangers. This water remains in the container permanently and is not used for heating or as use water. For reasons of usability, various materials can be mixed in the water, which will improve its behaviour for energy transmission, its clarity, for cosmetic reasons, and also anti-freezing agents for its low temperature resistance. Alternatively, the inner container (2) may be filled with other liquids, such as oil-based fluids, high heat-capacity liquids, non-volatile ones and with a gasification point above 100°C. Alternatively, special salts with a freezing point and a melting point of 45-75°C can be placed in the inner container (2), having high special heat and high latent heat characteristics in phase change.
It is to be noted here that the description of the invention has been made by reference to exemplary embodiments, not limited thereto. Therefore, any change or modification in terms of shape, dimensions, morphology, construction and assembly materials and components used, unless they constitute a novel inventive step and contribute to the technical development of the already known one, are considered to be within the scope of the present invention.

Claims

1. A new type water heater with buffer tank, comprising an outer container (1), an inner container (2) with intermediate insulating material (3), adjustable supports (8) and a lid (13), characterized in that it has at least one resistor (4) and at least one heat exchanger in the inner container (2), which is filled with a liquid for transferring heat to and from the resistor (4) and the exchanger.
EP19708355.3A 2018-07-25 2019-01-25 New type water heater with buffer tank Pending EP3827205A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GR20180100343A GR20180100343A (en) 2018-07-25 2018-07-25 New-type geyser with inert tank
PCT/GR2019/000005 WO2020021293A1 (en) 2018-07-25 2019-01-25 New type water heater with buffer tank

Publications (1)

Publication Number Publication Date
EP3827205A1 true EP3827205A1 (en) 2021-06-02

Family

ID=65628800

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19708355.3A Pending EP3827205A1 (en) 2018-07-25 2019-01-25 New type water heater with buffer tank

Country Status (3)

Country Link
EP (1) EP3827205A1 (en)
GR (1) GR20180100343A (en)
WO (1) WO2020021293A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111503892B (en) * 2020-04-15 2021-05-18 山东齐昊新能源科技有限公司 Special water storage tank for low heat energy dissipation of air source heat pump water heater

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2287020A2 (en) * 1974-10-04 1976-04-30 Saule Ste Civile Immob Petit Electric storage heater - has double shell with heat insulating material between skins
FR2370239A1 (en) * 1976-11-04 1978-06-02 Lopez Chantal Hot water generator for central heating and consumption - has electrically heated insulated water tank to indirectly heat two sets of coils
DE8703409U1 (en) * 1987-03-06 1987-04-16 Buderus Ag, 6330 Wetzlar, De
JPH11166767A (en) * 1997-12-02 1999-06-22 Kyushu Henatsuki Kk Horizontal hot water storage type electric water heater
GB0514800D0 (en) * 2005-07-19 2005-08-24 Rbr Associates Ltd Heating system
US20100037888A1 (en) * 2008-08-12 2010-02-18 Bradford White Corporation Solar heating system with back-up electric heating
GB2465806A (en) * 2008-12-01 2010-06-02 Malcolm Boultby Oil based boiler
US20110283993A1 (en) * 2010-05-20 2011-11-24 Jeffrey Rex Winegar Water heater with insulating layer
US8358920B2 (en) * 2010-11-18 2013-01-22 A. O. Smith Corporation Water heater tank with convex heads
DE202013003098U1 (en) * 2013-04-03 2014-02-03 Armin Köpf Pressure-free, corrosion-resistant solar storage tank for heating support and domestic water heating in residential buildings, public buildings and industrial buildings
JP6405144B2 (en) * 2014-08-01 2018-10-17 日立アプライアンス株式会社 Hot water storage tank unit
CN204043227U (en) * 2014-08-04 2014-12-24 李渊 A kind of solar energy accumulation boiler

Also Published As

Publication number Publication date
WO2020021293A1 (en) 2020-01-30
GR20180100343A (en) 2020-03-18

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