EP3710758A1 - Module de chauffage pour un fluide caloporteur ainsi que dispositif de stockage d'énergie - Google Patents

Module de chauffage pour un fluide caloporteur ainsi que dispositif de stockage d'énergie

Info

Publication number
EP3710758A1
EP3710758A1 EP18818977.3A EP18818977A EP3710758A1 EP 3710758 A1 EP3710758 A1 EP 3710758A1 EP 18818977 A EP18818977 A EP 18818977A EP 3710758 A1 EP3710758 A1 EP 3710758A1
Authority
EP
European Patent Office
Prior art keywords
heat
heat transfer
heating module
heat exchanger
storage medium
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.)
Withdrawn
Application number
EP18818977.3A
Other languages
German (de)
English (en)
Inventor
Dieter Schluckebier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
B and S Entwicklungsgesellschaft Mbh
Original Assignee
B and S Entwicklungsgesellschaft Mbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by B and S Entwicklungsgesellschaft Mbh filed Critical B and S Entwicklungsgesellschaft Mbh
Publication of EP3710758A1 publication Critical patent/EP3710758A1/fr
Withdrawn legal-status Critical Current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
    • F24H3/00—Air heaters
    • F24H3/02—Air heaters with forced circulation
    • F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
    • F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
    • F01K3/18—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters
    • F01K3/186—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters using electric heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C1/00—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid
    • F02C1/04—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being heated indirectly
    • F02C1/05—Gas-turbine plants characterised by the use of hot gases or unheated pressurised gases, as the working fluid the working fluid being heated indirectly characterised by the type or source of heat, e.g. using nuclear or solar energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • F02C6/14—Gas-turbine plants having means for storing energy, e.g. for meeting peak loads
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/02—Induction heating
    • H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
    • H05B6/105—Induction heating apparatus, other than furnaces, for specific applications using a susceptor
    • H05B6/108—Induction heating apparatus, other than furnaces, for specific applications using a susceptor for heating a fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2220/00—Application
    • F05D2220/60—Application making use of surplus or waste energy
    • 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
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/14—Combined heat and power generation [CHP]

Definitions

  • Heating module for a fluid heat exchanger and device for energy storage
  • the invention relates to a heating module for inductive heating of a fluid according to the preamble of claim 1 and to a device for energy storage according to the preamble of claim 11.
  • Battery technology is fundamentally an alternative, as plants up to 40 MWh have already been built and larger capacities are planned.
  • battery systems are costly and polluting, especially because of the required raw material extraction. After their lifetime, batteries usually form toxic
  • thermoelectric approach in which excess electrical energy is induced by induction in
  • Heat energy is converted and stored in a heat storage.
  • An operating according to this principle device for energy storage of the type mentioned above and a heating module suitable for this purpose are known from EP 28330290 B1.
  • an energy storage device is disclosed, which at least one coupling element includes, which is inductively heated by means of a transformer circuit.
  • a fluid heat exchanger for example air, is heated directly in or on the coupling element and releases the absorbed heat to a heat storage medium, for example stones.
  • the heat storage medium is in a thermally insulated
  • Heat storage medium can be brought to a temperature of 1000 ° C and more, for example.
  • Heat exchanger the heat removed from the memory and a consumer, for example, a heat-power coupling in the form of a steam turbine, supplied when a corresponding energy demand is detected at a consumer or in a connected power grid.
  • Coupling element is guided as a secondary winding around a magnetic core.
  • the coupling element for example in the form of a metallic tube, is also part of the circuit for the fluid heat exchanger and provides the
  • Heating module of the aforementioned type and a device for
  • a heating module is used, which alternating field generating means for generating an electromagnetic
  • the heating module has at least one heat transfer element, which is electrically connected in series with the coupling element and arranged within the heat transfer volume.
  • the at least one heat transfer element is heated by means of the ohmic resistance of an electric current supplied via the coupling element.
  • Heat transfer volume flows around the fluid heat exchanger to the at least one heat transfer element and is heated in this way.
  • a very effective heating of the heat exchanger can be achieved with high efficiency.
  • the heat transfer volume may be communicated to a fluid conduit system, e.g. With
  • Fluid line elements of a fluid circuit be connected and surrounds the at least one heat transfer element, preferably with lateral walls, which extend between an inlet opening and an outlet opening for the fluid heat exchanger.
  • Inlet opening and outlet opening may be smaller than the cross section in the cross-section perpendicular to the main direction of flow of the heat exchanger
  • Heat exchanger can first hit the heat transfer element or at least one of the heat transfer elements.
  • the end of the heat transfer volume is then defined accordingly by the cross section at which the heat exchanger can not touch the heat transfer element or at least one of the heat transfer elements for the first time.
  • Heat transfer volume are arranged. It is thus given a spatial separation between at least a part of the coupling element and the at least one heat transfer element.
  • the coupling element is at least not exposed in its full extent to the fluid heat exchanger and can be operated at relatively low temperatures, whereby the specific resistance can be kept correspondingly low.
  • Heat transfer element or the heat transfer elements is dimensioned such that the ratio of all provided for the contact with the fluid surfaces of the heat transfer element or the heat transfer elements to the
  • Heat transfer volume at least 100 m 2 / m 3 , preferably at least 150 m 2 / m 3 .
  • Energy sources such as Solar systems or wind power.
  • Coupling element is guided around at least part of the magnetic coil core.
  • the coupling element forms a secondary winding, which may for example consist of a single turn or partial turn.
  • the coupling element is band-shaped, thus has a large width compared to its thickness.
  • the coupling element could have a width of 1000 mm and a thickness of 5 to 10 mm and be made of an electrically conductive metal, e.g. Copper exist. In the width direction, the coupling element, as well as the
  • Heat transfer elements be divided into separate segments to
  • the heating module according to the invention can be designed so that at least two heat transfer elements are provided. At least two of the
  • Heat transfer elements are electrically connected in series with each other. In an advantageous embodiment, at least 10, more advantageously at least 15, 20, 25, 40, 50, 100 or 150 heat transfer elements are arranged in the heat transfer volume.
  • the heating module according to the invention is designed such that the at least one heat transfer element is plate-shaped or cup-shaped. Accordingly, a heat transfer element on flat sides, which are dimensioned perpendicular to its thickness direction by at least an order of magnitude larger than the thickness. In a plate-shaped heat transfer element, the flat sides are flat, while in a shell-shaped heat transfer element, the flat sides can be curved one or more times.
  • the at least one heat transfer element can also have perforations and / or be structured on its flat sides, for example by ribs or dents, in order to further increase the heat transferring surface.
  • the fluid may alternatively flow through the tubes to flow around the outsides.
  • the tubes may e.g. at their circumferences in the axial direction
  • a plurality of welded together tubes for example, each form a wall-like structure, wherein the current flows perpendicular to the axial direction of the tubes over the peripheries of the tubes.
  • the wall-like structures can in turn be connected in series and arranged such that adjacent wall structures are passed in opposite directions from the stream.
  • the heating module according to the invention may be advantageous to design the heating module according to the invention such that at least two of the heat transfer elements are arranged with their flat sides facing each other. In this way, gaps are formed between the heat transfer elements, through which the heat exchanger can flow.
  • Gap thicknesses and thus the distances between adjacent heat transfer elements perpendicular to the flat sides may preferably be at most 30 mm, not more than 25 mm, not more than 20 mm, not more than 15 mm or not more than 10 mm.
  • the gap thicknesses can also have different values depending on the requirement. It may be advantageous if the flat sides with each other facing heat transfer elements are aligned parallel to each other. This can be uniform
  • Gap thickness can be achieved.
  • the use of the electromagnetic induction in the heating module according to the invention is particularly characterized in that the conversion of electricity to heat can be achieved almost lossless. This is made possible on the one hand by the high ohmic resistance in the series-connected heat transfer elements.
  • the induced magnetic fields largely cancel each other out and the inductive resistance is negligible.
  • a power factor of 1 results. For sinusoidal current through the alternating field generating means, this also means an effective factor in reality (ratio of active power to apparent power).
  • Gases e.g. Air as a heat exchanger increase the operational safety, as they can be used non-toxic, environmentally friendly and otherwise unproblematic.
  • gases with high storage temperatures of up to 1,000 ° C possible which in turn has a positive effect on the efficiency of a power plant, which can use the stored heat as a source.
  • a device for energy storage comprising a heat storage medium and at least one circuit for a fluid heat exchanger, wherein the at least one circuit of the heat exchanger is designed such that the
  • Heat input into the heat storage medium and / or for heat removal from the heat storage medium of the heat transfer medium flows around the heat storage medium and / or flows through, it is proposed a for heating the
  • Heat exchanger serving heating module according to one of the above
  • the device according to the invention can be designed such that the
  • Heat storage medium has a solid.
  • the solid may comprise, for example, mineral substances, in particular stones, which are characterized by a high
  • the device according to the invention can be designed so that for the heat input into the
  • Heat storage medium and / or for heat removal from the Heat storage medium of the heat exchanger directly contacted the heat storage medium. This also allows the efficiency of the device can be significantly increased.
  • Heating module and the device for energy storage illustrated by figures.
  • Fig. 1 the basic structure of a heating module
  • Fig. 2 a device for energy storage with three heating modules, a
  • Fig. 1 shows the basic structure of a heating module 1 in the form of a
  • Transformer circuit with a arranged in a transformer space 22 coil 2 as a primary winding, a magnetic core 3 and serving as a secondary winding coupling element 4, which is band-shaped and with a variety of as
  • Heat transfer elements serving heating plates 5 is electrically connected in series.
  • Fig. 1 shows a relatively small number of heating plates 5, the number of which is preferably greater in actual systems, e.g. 40 to 150.
  • the electrical contacting of the heating plates 5 with each other is shown schematically in the figure by semicircles.
  • the heating plates 5 can also be integrally connected to each other in this way, so that there is a single meandering body that forms the heating plates 5.
  • the coupling element 4 is electrically contacted at transition points 18 on the outermost heating plates 5.
  • the heating plates 5 have a depth of eg 1 m or 1.5 m measured relative to the illustration in FIG. 5, measured perpendicular to the image plane.
  • the band-shaped coupling element 4 may preferably have the same or a similar depth or bandwidth measured in the same direction.
  • the heating plates 5 and / or the coupling element 4 can also be seen perpendicular to the image plane Segments of, for example, 200 mm or 250 mm wide may be subdivided to counteract problems associated with thermal length change.
  • the beaten by the coupling element 4 to the coil 2 and the magnetic core 3 semicircle may, for example, have a diameter of about 1 m.
  • the heating plates 5 are arranged within a heat transfer volume 19, which in the image plane has a cross-section of, for example, 1 m 2 and is surrounded by side walls 20 and a demarcation wall 21.
  • the demarcation wall 21 is used for spatial demarcation with respect to the transformer room 22 and is - like the
  • the heat transfer volume 19 can be connected to fluid line elements 6 of a fluid circuit 13.
  • the region of the transition points 18 is - unlike in Figure 1 shown for clarity - preferably also largely thermally insulating and preventing or at least aggravating a mass transfer, e.g. through an insulation material.
  • the heating plates 5 can - as in other than the concrete embodiment of the heating module 1 described here - be arranged standing or hanging.
  • Alternating field in the coupling element 4 generates a heating current, which heats due to the given in the heating plates 5 high ohmic resistance.
  • the heating plates 5 in turn serve to heat a fluid, not shown here
  • the transformer space 22 preferably has thermally insulating walls 23.
  • the heating plates 5 are dimensioned and arranged in the heat transfer volume 19 such that the ratio of the total area of the heating of the fluid provided flat sides of the heating plates 5 to the heating plates 5 receiving heat transfer volume 19 at least 100 m 2 / m 3 , preferably at least 150 m 2 / m 3 . In this way it is possible to heat the fluid to be heated, preferably air, to 1000 ° C. or more.
  • Heating module according to the invention can also be used for other purposes to heat fluids. Then, depending on the temperature or power requirement entirely different dimensions may be useful. Also, the heat transfer elements need not be formed as a heating plate 5. Other forms, e.g. Pipes are in the
  • Fig. 2 shows schematically the structure of a device for energy storage with three in terms of the fluid flow in series heating modules 1, a
  • Heat storage 7 and a heat-power coupling 8 The heating modules 1 are shown here only symbolically and can the heating module 1 shown in FIG.
  • a heat storage medium 9 for example, stones in a bed, arranged.
  • the heat storage medium 9 is to be heated to a maximum temperature, for example 1000 ° C, by means of the heat transfer fluid, preferably air.
  • the fluid itself is brought by means of the heating modules 1 to a corresponding temperature.
  • the heating modules 1 are over
  • this electric power can be provided, which is not used in the power grid, that is excess, is.
  • the fluid line elements 6 each go via at least one input and output not shown here in the heat transfer volume 19 of
  • the fluid is finally brought in the heating modules 1 to a heating temperature, for example 1000 ° C, and then contacted in the heat storage 7, the heat storage medium 9, preferably immediately. This took place until the heat storage medium over the entire height of the
  • the fluid is guided by means of a second fan 11 in a second circuit 12 via the heat accumulator 7 and a heat exchanger 14.
  • the heat exchanger 14 is part of the heat e-power coupling 8, by means of which a turbine 15 electrical power is generated, which is the power grid or an immediate consumer (not shown here) is provided.
  • a gas turbine power plant is shown by way of example as a heat-power coupling 8.
  • Gas turbine power plant and steam turbine power plant can be used for energy production.
  • the gas turbine power plant shown in Fig. 2 densified by means of a
  • Compressor 17 the operating fluid, such as air coming from the environment, and it leads by means of the pipe 16 via the heat exchanger 14 to the turbine 15, where the cooled operating fluid is then supplied to the environment or used for further use.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

L'invention concerne un module de chauffage pour un fluide caloporteur, comprenant des moyens de génération de champ alternatif servant à générer un champ électromagnétique alternatif, un élément de couplage (4) destiné à être couplé par induction au champ électromagnétique alternatif, et un volume de transfert de chaleur (19) servant à chauffer le fluide calopoteur. Le module de chauffage est caractérisé en ce qu'au moins un élément de transfert de chaleur (5) est monté électriquement en série avec l'élément de couplage (4) et agencé à l'intérieur du volume de transfert de chaleur (19). L'invention concerne également un dispositif de stockage d'énergie comprenant un milieu de stockage de chaleur (9) et au moins un circuit (12, 13) pour un fluide caloporteur, le ou les circuits (12, 13) du caloporteur étant conçus de telle manière que, pour l'introduction de chaleur dans le milieu de stockage de chaleur (9) et/ou pour le prélèvement de chaleur dans le milieu de stockage de chaleur (9), le caloporteur circule autour du milieu de stockage de chaleur et/ou traverse ce dernier. Le dispositif est caractérisé par un module de chauffage (1) du type ci-dessus servant au chauffage du caloporteur.
EP18818977.3A 2017-11-16 2018-11-02 Module de chauffage pour un fluide caloporteur ainsi que dispositif de stockage d'énergie Withdrawn EP3710758A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017126959.2A DE102017126959A1 (de) 2017-11-16 2017-11-16 Heizmodul für einen fluiden Wärmeüberträger sowie Vorrichtung zur Energiespeicherung
PCT/DE2018/100890 WO2019096344A1 (fr) 2017-11-16 2018-11-02 Module de chauffage pour un fluide caloporteur ainsi que dispositif de stockage d'énergie

Publications (1)

Publication Number Publication Date
EP3710758A1 true EP3710758A1 (fr) 2020-09-23

Family

ID=64664551

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18818977.3A Withdrawn EP3710758A1 (fr) 2017-11-16 2018-11-02 Module de chauffage pour un fluide caloporteur ainsi que dispositif de stockage d'énergie

Country Status (3)

Country Link
EP (1) EP3710758A1 (fr)
DE (1) DE102017126959A1 (fr)
WO (1) WO2019096344A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3390251A (en) * 1965-10-22 1968-06-25 Joshua D. Lowenfish Heating device
EP0062706B1 (fr) * 1981-04-10 1986-10-15 Robert Bosch Gmbh Dispositif de chauffage
US6901213B2 (en) * 2001-05-23 2005-05-31 Bai Bing Electric heater
EP2101051A1 (fr) * 2008-03-12 2009-09-16 Siemens Aktiengesellschaft Stockage d'énergie électrique dans un accumulateur thermique et rétro-électrification à l'aide d'un cycle thermodynamique
EP2830290B1 (fr) 2013-07-26 2016-10-12 Sap Se Communication des pages via un réseau de télécommunication cellulaire numérique
DE102013108319B4 (de) 2013-08-01 2016-10-20 B + S Entwicklungsgesellschaft Mbh Verfahren sowie Vorrichtung zur Energiespeicherung

Also Published As

Publication number Publication date
WO2019096344A1 (fr) 2019-05-23
DE102017126959A1 (de) 2019-05-16

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