New! Search for patents from more than 100 countries including Australia, Brazil, Sweden and more

WO2014057014A1 - Storage device for temporarily storing thermal energy, and method for operating a storage device - Google Patents

Storage device for temporarily storing thermal energy, and method for operating a storage device Download PDF

Info

Publication number
WO2014057014A1
WO2014057014A1 PCT/EP2013/071116 EP2013071116W WO2014057014A1 WO 2014057014 A1 WO2014057014 A1 WO 2014057014A1 EP 2013071116 W EP2013071116 W EP 2013071116W WO 2014057014 A1 WO2014057014 A1 WO 2014057014A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat
characterized
preceding
working medium
storage
Prior art date
Application number
PCT/EP2013/071116
Other languages
German (de)
French (fr)
Inventor
Wolfram R. BAUER
Rainer HOLMIG
Michael METT
Ludwig WEISSFLOG
Original Assignee
Cm-Institute (Civilisations Matter) E.V.
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 DE201210218634 priority Critical patent/DE102012218634A1/en
Priority to DE102012218634.4 priority
Application filed by Cm-Institute (Civilisations Matter) E.V. filed Critical Cm-Institute (Civilisations Matter) E.V.
Publication of WO2014057014A1 publication Critical patent/WO2014057014A1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT GENERATING MEANS, IN GENERAL
    • F24H7/00Storage heaters, i.e. heaters in which energy is stored as heat in masses for subsequent release
    • F24H7/02Storage heaters, i.e. heaters in which energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid, e.g. air, water
    • F24H7/04Storage heaters, i.e. heaters in which energy is stored as heat in masses for subsequent release the released heat being conveyed to a transfer fluid, e.g. air, water with forced circulation of the transfer fluid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D11/00Central heating systems using heat accumulated in storage masses
    • F24D11/002Central heating systems using heat accumulated in storage masses water heating system
    • F24D11/003Central heating systems using heat accumulated in storage masses water heating system combined with solar energy
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0056Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00Heat sources or energy sources
    • F24D2200/14Solar energy
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00Heat sources or energy sources
    • F24D2200/15Wind energy
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D2020/0065Details, e.g. particular heat storage tanks, auxiliary members within tanks
    • F28D2020/0069Distributing arrangements; Fluid deflecting means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/04Constructions of heat-exchange apparatus characterised by the selection of particular materials of ceramic; of concrete; of natural stone
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/20Solar thermal
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/70Hybrid systems
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage
    • Y02E60/14Thermal storage
    • Y02E60/142Sensible heat storage

Abstract

The invention relates to a storage device (1) for temporarily storing thermal energy, comprising at least one solid heat storage device (21), in particular a concrete thermal storage device. At least one heat supply line (28, 29) for a first working medium is arranged in at least some sections of the solid heat storage device (21), and at least one heat removal line (30, 31), which is fluidically separate from the heat supply line (28, 29), for a second working medium is arranged in at least some sections of the solid heat storage device. The invention further relates to a method for operating a storage device (1).

Description

Speichereinrichtunq to Zwischenspeicherunq of thermal energy as well as methods for operating a Speichereinrichtunq

The invention relates to a storage device for intermediate storage of thermal energy, with at least one solid heat storage, in particular a concrete heat storage. The invention further relates to a method of operating a memory device. Storage devices or heat storage facilities are for storage or intermediate storage of thermal energy, such as from industrial processes and / or renewable energy sources are used. At last, the primary energy, namely solar energy is only zeitwei- se available. In case of unfavorable weather conditions and at night the solar heat input over an indefinite period of time is eliminated. By means of the memory device can be bridged without primary energy, such a period of time, so that the provision of thermal energy part of the period is also possible via at least. For temporary storage of thermal energy by means of storage devices are known different concepts for heat storage. These can be designed latent heat storage, sorption heat accumulator or solid heat storage idwärmespeicher example as Flu-. The heat storage thermal energy is supplied to and temporarily stored therein, so that it can be removed again at a later time.

In the low temperature range, for example, to about 100 ° C, especially fluid heat storage are used that work with the storage medium of water. Water has a high specific capacity Wärmeka- and a relatively low viscosity. The achievable maximum temperature when using water as the storage medium is determined by the pressure-dependent boiling point because boiling of the storage medium to be usually avoided. In NIE derdruckbereich, ie at about atmospheric pressure, therefore, only low maximum temperatures can be realized to about 95 ° C. Here are m 3 achieved average energy densities up to about 80 kW /. The fluid heat storage that use water as a storage medium such as hot water heat store, Erdson- denwärmespeicher to call gravel / water heat storage and Aquiferwärme- memory.

In the medium temperature range, ie at temperatures of at least 100 ° C to about 330 ° C, especially Latentvärmespeicher are used, the storage material is located upstream as a phase change material and hence with warming and accordingly changes its state of aggregation even with cooling in the area of ​​a certain phase change temperature. Such phase change materials, for example, of inorganic substances, such as salt hydrates, or metals, or organic materials such as fatty acids or paraffin finen exist. Latent heat storage achieve energy densities up to about 200 kW / m 3. Another alternative are fluid heat storage utilizing molten salts as a storage medium. However, this only achieve lower energy densities than thermodynamic heat storage, in particular the fluid heat storage described above.

In the high temperature range, ie at temperatures above 400 ° C, found mainly sorption heat accumulator application. This thermal storage working thermochemically and store the heat with- help of endothermic and exothermic reactions. They allow long-term heat storage with low energy losses. As a storage medium silica gels, metal hydrides or zeolites. In Sorptionswärmespeichern heat can temperatures at high tem- with extremely high energy densities of up to 500 kW / m are stored. 3

Another option for storing heat at high temperatures represent solid heat storage. As Speicherma- concrete is TERIAL used, for example, so that a concrete heat storage present. Such concrete heat storage can save m 3 at an energy density of about 30 kW / over several days heat at temperatures above 400 ° C. In the solid heat storage are for this purpose before piping which nem of egg working fluid or heat transfer fluid can flow. Using the working medium can be supplied to the solid heat storage either heat or taken from him.

It is an object of the invention to provide a storage means for intermediate storage of thermal energy to suggest that compared with the known storage devices has the advantage that the stored heat can be used more flexible. In particular, to both the supply and the removal of heat can be made arbitrarily. This is achieved according to the invention with a memory device having the features of claim 1. It is provided that at least one Wärmezuführleitung for a first working medium and at least one fluidically separate from the Wärmezuführleitung Wärmeentnahmelei- tung are arranged for a second working medium at least partially in the solid heat accumulator. The Wärmezuführleitung and the heat removal line consist of pipes and as such constitute a mehrkrei- Siges piping system is disposed in the concrete heat storage. Using this pipeline system an optimized loading and unloading of the solid heat accumulator with or thermal energy are possible. Both the Wärmezuführleitung and the heat removal line are wenigs- least partially disposed within the solid heat accumulator, in particular embedded in these or poured. The latter embodiment is provided, for example, when the solid heat accumulator is designed as a concrete heat storage; but it can also be used in other heat registers.

The Wärmezuführleitung is designed for the first working medium and the heat removal line for the second working medium. The second working medium is preferably different from the first working medium. In an alternative embodiment, however, it may correspond to the first working medium. In order to achieve the aforementioned advantages, the Wärmezuführleitung and the heat withdrawal conduit are fluidically separated from each other. Apart from possible leakage and the like, the second working medium from the first working medium is therefore still strictly separated.

By using several, fluidly separated from each other piping and appropriate control and / or regulating the loading of heat and the removal of heat can be carried out both sequentially in time, in particular immediately successively or spaced in succession, as well as simultaneously. It may be provided for charging the solid heat accumulator to supply more heat than is taken in the same period, while this may be reversed for at least partially filled heat storage. In a further advantageous embodiment of the invention it is provided that the Wärmezuführleitung at least two Wärmezuführrohre and the heat removal line has at least two heat extracting tubes to opposite to the first face second face at least partially, in particular completely, extend through the solid heat storage from a first end face, wherein in each case two of the Wärmezuführrohre in the region of the first end face and in each case two of the Wärmeentnahmeroh- re in the area of ​​the second end face are fluidically connected together. Both the Wärmezuführrohre as well as the heat extracting tubes thus extend through the preferred solid heat storage in the longitudinal direction completely and extend at least from the first end to the second end face of the solid heat accumulator. however, they may also extend beyond the first face and / or the second end face addition, in order to facilitate the described fluidic connection of two of the Wärmezuführrohre respectively of two of the heat discharge pipes. Alternatively, however, can of course be embedded, the flow connection between the two Wärmezuführ- or -entnahmerohren also in the solid heat storage or a heat storage material of the solid heat accumulator. The Wärmezuführleitung and the heat extraction line preferably have a number of Wärmezuführrohre or heat extracting tubes which corresponds to a multiple of two. The Wärmezuführleitung thus extends if it has only two Wärmezuführrohre, zumin- of the second face least back to the first face and back. the Wärmezuführleitung has a multiple of two Wärmezuführrohre, it proceeds according to, for example, multiple meandering between the second face and the first end face to and fro. The same applies to the heat extraction line which JE but at least to the second end face and extends from the first end back to the first end face.

In a further development of the invention it is provided that several Wärmezuführleitungen and / or more heat extraction lines are provided. It is thus not only provided the heat supply of flow to separate from the heat removal line. Rather, a plurality of fluidically separated Wärmezuführleitungen or more fluidically separate heat withdrawal conduits are in addition realized to also introduce the supplied via the first working medium heat selectively to the solid heat storage and / or to be found in analogous heat also targeted by the second working medium therefrom. Particularly preferred are the plurality Wärmezuführleitungen are independently connected to the first working medium acted upon. The same applies to the plurality of heat extraction lines and the second working medium. For example, as many heat are mezuführleitungen such as heat extraction lines in the solid heat storage provided.

A further embodiment of the invention provides that at least one of the Wärmezuführleitungen, for example in the region of the second end face, via at least one valve of an Wärmezuführvertei- leinrichtung to a Wärmezuführeinlassanschluss or Wärmezuführauslassanschluss the storage device is connected. By means of the Wärmezuführverteileinrichtung, the first working medium, which is provided at the Wärmezuführeinlassanschluss be flexibly distributed among the Wärmezuführleitungen. For this purpose, the Wärmezuführverteileinrichtung on the valve that is associated with the at least one of the Wärmezuführleitungen.

Particularly preferably all Wärmezuführleitungen each have such a valve, which can for example be designed as a multi-way valve. In particular, the valve is fluidly disposed between the Wärmezuführleitung and the Wärmezuführeinlassanschluss. Alternatively, however, it may also be arranged between the Wärmezuführleitung and the Wärmezuführauslassanschluss. Even in such a configuration results in the possibility to distribute the first working medium targeted to the Wärmezuführleitungen. Preferably, the valve is designed such that not a complete enabling or complete interruption of the running via the valve flow connection is only possible but rather that setting an arbitrary selectable mass flow is realized through the valve.

A further embodiment of the invention provides that at least two of the Wärmezuführleitungen, in particular all Wärmezuführleitungen, for example in the region of the second end side, are connected to a Wärmezuführverteilleitung via a respective at least one multi-way valve, wherein the Wärmezuführverteilleitung having the Wärmezuführeinlassanschluss and Wärmezuführauslassan- circuit. Preferably, each of the at least two Wärmezuführleitungen opens on both sides into the Wärmezuführverteilleitung. At least one of these opening sites the multi-way valve is provided. Alternatively, of course, be present at each discharge point, such a multi-way valve. The multi-port valve is preferred as the 3/2-way valve. According to the mass flow of the first working fluid from the Wärmezuführverteilleitung can be set in the Wärmezuführleitung using the multi-way valve or the multi-way valves. This adjustment is preferably carried out a controlling and / or regulating. In such a configuration, the flow connection between the Wärmezuführleitung on one side and the Wärmezuführeinlassanschluss and / or the Wärmezuführauslassanschluss on the other hand can be completely interrupted. It may be, for example, provided that an immediate connection between the bare flow Wärmezuführeinlassanschluss and the Wärmezuführauslassanschluss exists, which thus does not extend over the Wärmezuführleitungen. It is also possible to combine in any combination with the Wärmezuführeinlassanschluss and the Wärmezuführauslassanschluss individually or Wärmezuführleitungen. Accordingly, heat can be supplied at the desired position by means of the first working medium to the solid heat storage highly targeted. In a further embodiment of the invention it is provided that at least one of the heat removal lines, for example in the region of the first end face, via at least one valve of a heat meentnahmeverteileinrichtung Wärmeentnahmeeinlassan- to a circuit or a Wärmeentnahmeauslassanschluss the storage device is connected. Additionally or alternatively, it is provided that at least two of Wärmezuführleitungen, in particular all Wärmezuführleitungen, for example in the region of the second end face, each have at least one multi-way valve are connected to a Wärmeentnahmeverteilleitung, wherein the Wärmeentnahmeverteilleitung having the Wärmeentnahmeeinlassan- circuit and the Wärmeentnahmeauslassanschluss. The foregoing is for Wärmezuführleitungen that Wärmezuführverteilleitung and the Wärmezuführeinlassanschluss and Wärmezuführauslassanschluss are so similar with the heat removal lines Wärmeentnahmeverteilleitung and the heat recovery inlet port and the Wärmeentnahmeauslassanschluss.

An advantageous further development of the invention provides that the Wärmezuführrohre and the heat discharge pipes are formed of pipes, which are arranged in the vertical direction in a plurality of rows in the solid heat storage, wherein at least adjacent to some of the pipes mutually opposing rows in the horizontal direction in alignment or offset from each other , So the solid heat storage in cross-section is considered. The pipes are preferably arranged over the entire longitudinal extent of the solid heat accumulator parallel to each other and extend, as already indicated above, at least from the first end face to which this gegenüberlie- constricting second end face of the solid heat accumulator. Particularly preferred, all pipes of a cycle, so the heat mezuführleitung (s) or the heat extraction line (s) in particular, all pipes of the solid heat accumulator, the same dimensions, in particular with regard to their diameter and / or their length.

The pipes can now in principle be arranged in any order in the solid heat storage. Preferably, however, they are organized in several rows, with always more of the pipes are in the horizontal direction arranged side by side at the same height, ie at the same vertical position. The pipes of one row are preferably arranged in the horizontal direction apart from each other. The pipes therefore are not directly adjoin each other so that between them is present, the heat storage material of the solid heat accumulator. The pipes of mutually immediately adjacent rows are arranged in the vertical direction are now also spaced from each other, for example aligned with each other, ie at the same position in the horizontal direction, or in this direction offset from one another. In the case of the latter embodiment, the pipes one of the rows in the horizontal direction are seen, for example, centrally between the pipes of the immediately adjacent row. Furthermore, a plurality of solid heat accumulator can be provided in a preferred embodiment of the invention, the pipes of the solid heat accumulator fluidly connected in series or connected in parallel. The memory device is thus designed modular and may be assembled in dependence on the amount of heat to be stored from any number of the solid heat accumulator. The present into the solid heat storage pipes are preferably flow-connected with each other, so that the pipes of said plurality of solid heat storage are either in series or in parallel. A combination of parallel and series connection may be provided. Preferably identical Festkörperwärme- memory are used, so that the pipes of the one of the solid heat accumulator can be fluidically connected to the corresponding in position to piping of the other one of the solid heat accumulator are connected respectively.

An advantageous development of the invention provides that the plurality of solid heat storing a common Wärmezuführverteileinrichtung and / or a common Wärmeentnahme- is distributing means associated with or that for at least obligations a portion of the solid heat accumulator separate Wärmezuführverteileinrich- and / or separate Wärmeentnahmeverteileinrichtungen are provided. The common Wärmezuführverteileinrichtung or Wärmeentnahmeverteileinrichtung has the advantage that the memory device has a comparatively simple assembly construction, because the plurality of solid state heat storage must be connected only to the common Wärmezuführverteileinrichtung or Wärmeentnahmeverteileinrichtung the advantage. In this way, the storage capacity of the memory device can be easily scaled. For example, are the plurality of heat storage, which are connected to the common Wärmezuführverteileinrichtung and / or Wärmeentnah- meverteileinrichtung, fluidically connected in parallel and / or series circuit before. Particularly preferably both the common Wärmezuführverteileinrichtung and the common Wärmeentnahmeverteileinrichtung is available. Between these, the solid heat storage arranged fluidically.

Are for the at least a portion of the solid heat accumulator, the separate Wärmezuführverteileinrichtungen or Wärmeentnahmeverteileinrichtungen present, the respective working medium may for example be specifically mespeichern the desired solid heat accumulator or the desired Festkörperwär- and are additionally supplied to the desired Wärmezuführleitung or heat removal line. Thus, while the common Wärmezuführverteileinrichtung or Wärmeentnahmeverteileinrichtung a simple scaling ren the memory means allows without the expenditure for the fluidic interconnect increases, the heat can ever took some facilities with the separate Wärmezuführverteileinrichtungen or heat generation are particularly targeted supplied or removed. A further development of the invention provides that the pipes are made of a material having a greater thermal conductivity than the material of the solid heat accumulator. The material of the solid heat accumulator can be referred to as heat storage material. The pipe material is preferably different from the thermal storage material. Due to the better thermal conductivity of the material of the pipes in comparison with the heat storage material, the heat can be efficiently supplied by means of the respective working medium or removed.

An advantageous embodiment of the invention provides that the solid heat storage of concrete, ceramic, mineral bulk material, steel or a mixture of these materials. Basically, the solid heat storage can be made of any material which body heat accumulator is always present in the expected during operation of the memory device temperature region of the solid as a solid, that is in the solid state. For example, concrete is as a heat storage material used so that the solid heat accumulator is designed as a concrete heat storage. The concrete may be added, of course, at least one additive, at least one filler and / or at least one additive in order to obtain a dense concrete matrix and the other a high thermal conductivity on the one hand; or even to allow a deliberate vapor permeability. The additive is in particular gravel or sand, which is chosen depending on local conditions. As additives such as heavy minerals and / or metal compounds can be used. Among the heavy minerals minerals having a density of at least 2.65 g / cm 3, or at least 2.9 g / cm 3, for example, to understand. As heavy minerals, for example metal oxides and / or siliceous compounds, in particular in any combination used.

In a further embodiment of the invention it is provided that a plurality of heat removal inlet ports and a plurality of heat are entnahmeauslassanschlüsse provided which are fluidly connected, respectively with at least one heat removal line. Via a respective heat removal inlet port and an Wärmeentnahmeauslassanschluss a heat consumer is connected to the memory device. Now there are several heat removal inlet ports and multiple outlet ports Wärmeentnahme- before, so more of these heat consumer can use the storage means of removed heat can be supplied or operated, in particular independently of each other. It is therefore not necessary, fluidically connected in parallel or in series to connect a plurality of heat consumer together to a heat recovery inlet port and a Wärmeentnahmeauslassanschluss. However, in an alternative embodiment of the invention is of course possible. It is advantageous if the heat recovery inlet ports and Wärmeentnahmeauslassanschlüsse can be connected to the heat extraction lines flow-optional or flexible. For example, in each case at least one heat extraction line connections with one of the let Wärmeentnahmeein- and one of the Wärmeentnahmeauslassanschlüsse fluidly connectable. Particularly preferably, however, each of the heat removal inlet ports and the Wärmeentnah- is meauslassanschlüsse each having a plurality of heat withdrawal conduits connectable. In a preferred embodiment, this is also possible, so that, for example, a first heat consumer via a first heat removal line of removed heat and a second heat consumer with a second heat removal line of removed heat can be supplied. Accordingly, the consumer may be connected each other simultaneously and completely independently, so long as the memory device or the solid heat storage has a sufficient charge level.

A preferred embodiment of the invention provides that only a Wärmezuführeinlassanschluss and only a drain port Wärmezuführaus- are provided. Thus, while, for example, connections the removal of the heat via the plurality Wärmeentnahmeeinlass- and the plurality Wärmeentnahmeauslassanschlüsse may be provided, the supply of heat is only realized via a circuit which runs through the Wärmezuführeinlassanschluss and Wärmezuführauslassanschluss. Are therefore more heat sources may be provided, these are connected fluidically in parallel or in series before. An independent heating of various regions of the solid heat accumulator with heat from various heat sources is therefore preferred not provided.

Advantageously, in the solid heat accumulator, at least one temperature sensor is embedded. Use of the temperature sensor, the temperature of the solid heat accumulator, or at least a portion of the solid heat accumulator can be determined. Using the determined using the temperature sensor temperature can then supplying and / or the removal of heat from the solid heat accumulator is controlled and / or regulated. Finally, it may be provided that a heating device, in particular an electric heater coupled in flow communication with at least one Wärmezuführleitung or connectable. The heating means is preferably supplied with energy from renewable sources. For example, it is connected on the side remote from the solid heat accumulator side of the Wärmezuführverteileinrichtung to these or the Wärmezuführeinlassanschluss and Wärmezuführauslassanschluss. For example, the heating device is for connection directly to both the Wärmezuführeinlass- as connected also Wärmezuführauslassanschluss. Accordingly, particularly single, heating the memory means also supplied to a plurality of solid heat storing heat, these are thus heated by means of the can. The heater may also be present to the extent of several solid heat storage as a central heating. The heating means is preferably connected in parallel or in series arranged in a further heat source. The heating device is present in particular as an electric heater, which is preferably supplied with electrical energy from a renewable energy source, for example a wind power plant or the like.

The invention further relates to a method for operating a memory means for temporarily storing thermal energy, in particular a storage device according to the above embodiments, wherein said memory means has at least one solid heat storage, in particular a concrete heat storage. It is provided that at least one Wärmezuführleitung for a first working medium and at least one fluidically separate from the Wärmezuführleitung heat removal line are arranged for a second working medium at least partially in the solid heat accumulator, wherein the mass flow of the first working medium through the Wärmezuführleitung and the mass flow of the second working medium be adjusted by the heat removal line independently. The advantages of the memory device has already been discussed. Both the method and the storage means may further be formed according to the foregoing, so that reference is made to this. By adjusting the mass flows can independently from each other - as explained - be supplied to the solid heat storage selectively heat and removed, in particular simultaneously or sequentially, for example, immediately thereafter, or with a time interval.

In a preferred embodiment of the invention it is provided that the mass flow rates are adjusted so that the maximum temperature of the first working medium is different from the maximum temperature of the second working medium, in particular even if the solid heat storage fed simultaneously heat via the first working medium and removed via the second working medium is , Below the maximum temperature is the highest temperature is to be understood that occurs under normal operating conditions of the memory device in the respective working medium in the region of the memory device. The maximum temperature of the first working medium is so meauslassanschluss occur for example at the Wärmezuführein- drain port and the maximum temperature of the second working medium in the heat removal line and / or the Wärmeentnah-.

Preferably, the maximum temperature of the first working medium is greater than the maximum temperature of the second working medium. Examples of play is the maximum temperature of the first working medium at least 300 ° C, at least 350 ° C or at least 400 ° C, while the maximum temperature of the second working medium is at most 100 ° C. The mass flows of the first working fluid and second working fluid will now be set such that the above condition is met. This will especially be the case when the solid heat storage at the same time - is removed, so the mass flows of the two working media through the solid heat storage are each greater than zero - supplied heat and - - via the first working medium through the second working medium.

A development of the invention provides that the first working medium from the second working medium different, chosen in particular as a first working fluid, a first oil, preferably a thermal oil, and as the second working medium is water, a water-containing solution or a second oil, in particular a thermal oil, is used. As already indicated above, the temperature-to raturbereiche which occur in the two working media, different from each other. This is especially true for the maximum temperatures encountered in the first and the second working medium. For this reason, the working media are matched to the different temperature ranges. In this manner, operating the memory device at a low pressure both in the Wärmezuführleitung as well as in the heat removal line is possible particularly in the intermediate temperature range and in the high temperature range. Preferably, the pressures correspond to both the Wärmezuführleitung and in the Wärmeentnahmelei- tung at least approximately to the ambient pressure or soft only slightly from this starting. According to the solid heat storage or arranged in this piping must not be rated for pressure containment.

However, this means that there should be no phase transition of the working media during operation of the Speicherein- direction. For this reason, is chosen as the first working medium, for example, the first oil. This preferably has a boiling point which, particularly preferably considerably higher than this is above the maximum temperature of the first working medium. For example, the boiling point at a temperature which is by a factor of at least 1: 1; at least 1, 25; or at least 1, 5 is greater than the maximum temperature. This property is for example filled with the thermal oil. While thermal oil than any high temperature-resistant oil can be used in principle, oils, either mineral oils (for cost reasons), synthetic oils (because of their low corrosivity) or biological preferred. The ERS te working medium is for example a high-temperature thermal oil.

As a second working medium, for example water or a water-containing solution can be used. This is particularly the case when the maximum temperature of the second working medium is low, that is for example less than 100 ° C, especially less than 95 ° C, is. Alternatively, the second oil can be used as the second working medium. The second oil may correspond to the first oil, that is exemplified as thermal oil. Specifically, the second working medium is a Mitteltempe- temperature thermal oil. An advantageous development of the invention provides that the solid heat accumulator is divided into several logical heat storage segments each have at least one Wärmezuführleitung and at least one heat removal conduit, the temperature of each heat storage segment is determined by at least egg nes temperature sensor. Thereby to heat each memory segment be adjustable independently of the mass flows of the further heat storage segments by Wärmezuführleitung and the heat removal line the mass flows of working media. The at least one heat extraction line is forthcoming Trains t thermally coupled to the at least one Wärmezuführleitung, in particular the heat removal line is that of the Wärmezuführleitung - at least in cross-section - closest heat removal line.

Each heat storage segment also includes a temperature sensor on. This is preferably arranged such that it will minimize the effects from the further heat storage segments or the temperature thereof. For example, the temperature-is ratursensor - seen in cross section - is arranged centrally in the respective heat spoke segment. From the determined by the temperature sensor, in particular measured, temperature may be the present in the respective heat storage segment heat quantity or the remaining heat capacity determined or at least approximately estimated. In this case, an ambient temperature in the vicinity of the storage device, for example, taken into account. Thus, adjusting the mass flows of working media can be carried out in such a manner based on the temperature, for example, that no thermal overloading of the heat storage segment occurs and / or the conditions described above are met with respect to the maximum temperatures.

An advantageous development of the invention provides that zumin- least in a first mode for a cooler of the heat storage segments of the mass flow increases through the respective Wärmezuführleitung and / or the mass flow is reduced by the respective heat removal line and / or a warmer, the heat storage segments of the mass flow through the respective heat supply conduit reduced and / or the mass flow is increased by the respective heat removal line. This expands and contracts the mass flow takes place in each case with respect to the corresponding mass flow of the at least one further heat storage segment. Is so determined that at least one of the heat storage segments having a lower temperature than the other heat storage segment, a greater amount of heat per unit time it is at least temporarily supplied to or a smaller amount of heat per unit of time removed as this further heat storage segment. This is done by adjusting the mass flow through the Wärmezuführleitung and / or the mass flow through the heat removal line of the heat storage segment. Analogously to this procedure can be understood when it is determined that at least one of the heat storage segments is warmer than at least one other. In this case, the heat storage segment can be supplied to a smaller amount of heat per unit of time and / or a greater amount of heat to be removed per unit time. This is also done by adjusting the mass flow through the Wärmezuführleitung or the heat removal line. With the above procedure, a uniform temperature distribution over the heat storage segments is achieved in particular of time, so that the second working medium at equal mass flows can be taken for different heat storage segments each with the same or at least a similar temperature. In a preferred embodiment of the invention it is provided that is set at least in a second mode of the mass flow through the Wärmezuführleitung for supplying a certain heat supply in a first of the heat storage segments, wherein the mass flow through the heat extraction WE- nigstens of another of the heat storage segments for removal of a certain heat removal amount that is greater than or equal to the heat supply, is adjusted. The said further heat storage segments extracted in the form of heat removal quantity amount of heat is thus at least partially to the ERS of the heat storage segments th supplied in the form of heat supply. The heat removal rate can be greater than the heat supply so that the heat storage segment in this stored heat - is taken - when there is sufficient charge level. For example, it can be provided that is set for the other of the heat storage segments of the mass flow through the Wärmezuführleitung such that the directly introduced into the further heat supply, the heat storage segments is smaller than the heat extracted from this discharge amount. In particular, the power supplied to the further heat supply, the heat storage segments equal to zero and thus the mass flow through the Wärmezuführleitung also equal to zero.

The heat storage segments describe as already stated, only a logical division of the solid heat accumulator. Accordingly, the individual heat storage segments are each connected to transfer heat or gekop- pelt. Preferably, the first and the further the heat storage segments are arranged directly adjacent to each other, so that the power supplied to the first heat storage segments heat supply can pass through heat conduction in the other of the heat storage segments, where it is ge in the form of Wärmeentnahmemen- removed.

It is only in front of an indirect supply of heat to the other heat storage segments from the first heat storage segments. In this way the first heat storage segments can for example be done overall to a high temperature, yet the second working medium are only subjected to a lower temperature, so that its predetermined maximum temperature is not reached even with only a small mass flow, namely because it is not the first of the undergoes heat storage segments, but only the more the heat storage segments.

In a further development of the invention it is provided that the mass flows are adjusted by the Wärmezuführleitungen and the heat withdrawal conduits in such a way at least in the second mode, that the sum of Wärmezuführmengen the sum of the heat extraction amounts equal to or greater than this. Such a procedure is in particular in the case of the second mode described above, in which no memory segments is fed directly via the corresponding Wärmezuführleitungen heat all heat, sensible. For example, it is now provided at least one heat storage segment, preferably a plurality of heat storage segments, each supplying a heat supply recirculation amount, said Wärmezuführmengen in sum are greater than the total, the heat storage, so all heat storage segments extracted heat removal quantity. In this way, a heat storage segment is at least, preferably a plurality of heat storage segments is kept at a constant temperature or further heated, while another of the thermal storage heat segments is taken to supply heat directly particular without him.

In other words, it can be provided that is set only for a portion of the heat storage segments is greater than zero at least in the second mode, the mass flow through the Wärmezuführleitung, while the mass flow through the heat removal line for at least one of the heat storage segments for which the mass flow through the Wärmezuführleitung equal is zero, greater than zero is set. The invention is explained below with reference to the embodiment shown in the drawings exemplary embodiments without limiting the invention is carried out. In which:

Figure 1 is a schematic representation of a Speicherein- direction for the intermediate storage of thermal energy in a first embodiment, a first switching configuration is present,

2 shows the storage device in a second embodiment,

3, the known from the Figure 1 memory means in a second switching configuration, Figure 4 is known from the Figure 1 memory means in a third switching configuration

5 shows the storage device in a third embodiment, Figures 6 to 8 a cross section through a portion of a solid heat storage unit of the memory device with a first pipe line configuration, and

Figures 9 to 1 1 is a cross section through the solid heat accumulator comprising a second conduit configuration. 1 shows a schematic representation of a memory device 1 in a first embodiment. In addition, two heat sources 2 and 3, which are fluidly connected to the memory device. 1 The heat source 2 serves as a primary heat source, mequelle the heat source 3 as Sekundärwär-. Shown is further a heat load 4, which is also connected fluidically to the storage device. 1 The primary heat source 2 is located, for example in the form of at least one solar collector 5, which is through pipes 6 and 7 connected to a Wärmezuführeinlassanschluss 8 and a heat supply führauslassanschluss 9 of the memory device. 1 The pipes 6 and 7 are connected on the secondary heat source 3 fluidically to one another or connected.

In the pipes 6 and 7 and consequently also in the solar collector 5, a first working medium is present, which is supplied and removed via the Wärmezuführauslassanschluss 9 of the storage device 1 via the Wärmezuführeinlassanschluss. 8 The first working medium can be heated in the solar collector. 5 In addition, it can be passed for further heating by the Sekundärwärmequel- le. 3 Alternatively, the first working medium is heated exclusively by means of the secondary heat source. 3 The secondary heat source 3 is present for example in the form of a heater 10th The heater 10 is operated in particular electrically and is formed as far as electric heater. The heater 10 is preferably supplied with electric energy, which comes from renewable energy sources 1 1 and 12. FIG.

The load 4 is inlet port via pipes 13 and 14 with a Wärmeentnahmeauslassanschluss 15 and a Wärmeentnahme- 16 of the memory device 1 is flow-connected. In the pipes 13 and 14, a second working medium is present, which is removed via 15 and supplied via the Wärmeentnahmeauslassanschluss Wärmeentnahmeein- drain port 16 of the memory device. 1 The present in the pipes 6 and 7 and 15 and 16 main flow directions are indicated by way of example by the arrows 17, 18, 19 and 20th

The storage device 1 is used for intermediate storage of thermal energy. For this purpose it has at least one solid heat storage 21, which is formed for example as concrete heat storage. The solid heat accumulator 21 is made of egg nem heat storage material 22, in which pipes are embedded 23rd A portion of these pipes 23 now forms Wärmezuführrohre 24, another part heat extraction pipes 25 are preferably as many as 24 Wärmezuführrohre heat extraction pipes 25 are provided. The pipes 23 - thus the Wärmezuführroh- re 24 and the heat extracting tubes 25 - pass through the solid heat storage from a first end face 26 to an opposite second end face 27. The end faces 26 and 27 are penetrated in each case both of each of the pipelines 23rd In the shown schematic illustration of the solid heat accumulator 21 has two Wärmezuführrohre 24 form a first Wärmezuführleitung 28 and two Wärmezuführrohre 24 a second Wärmezuführleitung 29. For this purpose, the two Wärmezuführrohre

24 each of the first Wärmezuführleitung 28 and the second Wärmezuführleitung 29 is connected to the first end 26 fluidically to each other. Thus, each of the Wärmezuführleitungen 28 and 29 extends from the second end face 27 to the first front side 26 and back to the second end face 27. The representation chosen here is merely exemplary. Thus, the Wärmezuführleitungen 28 and 29 may each consist of more than two Wärmezuführrohren 24, which are, for example, before and / or behind the chenebene newspaper. Also, each of Wärmezuführleitungen 28 and 29 extend, contrary to several times between the second end face 27 and the first end face and made for this purpose of a corresponding number Wärmezuführrohren 24th Analogously, two of the heat removal tubes 25, a first heat removal line 30 and two more of the heat extracting tubes 25, a second heat removal line 31st The heat extraction pipes

25 each of the first heat removal line 30 and the second heat removal line 31 are fluidically connected together in the region of the second end face 27th Accordingly, the heat extraction lines run 30 and 31 respectively from the first end face 26 to the second end face 27 and back to the first end face 26, here too, the heat removal lines may have 30 and 31 more heat extraction pipes 25, which are present, for example, before or behind the plane , The explanations of the Wärmezuführleitungen 28 and 29 are supplementary reference for the heat withdrawal conduits 30 and 31st And vice versa.

Of course, alternatively, only a tung Wärmezuführlei- or more than two Wärmezuführleitungen and / or only a sample line heat or more than two heat withdrawal conduits are present in the solid heat storage 21st The solid heat accumulator 21 is both a Wärmezuführvertei- leinrichtung 32 as associated with a Wärmeentnahmeverteileinrichtung 33rd The Wärmezuführverteileinrichtung 32 has at least one valve 34, which Wärmeentnahmeverteileinrichtung 33 via at least one valve 35. Valve 34 is fluidically between the Wärmezuführleitungen 28 and 29, for example, thus on the second end face 27, before. The valve 35, however, is fluidically between the heat withdrawal conduits 30 and 31, so, for example, on the first end face 26, is provided. On the side facing away from the valve 34 the first Wärmezuführleitung 28 is, for example, directly following the Wärmezuführeinlass- 8 is connected. The second Wärmezuführleitung 29 is on the other hand 34 side facing away from the valve immediately concluded on its fluidically reasonable to Wärmezuführauslassanschluss. 9

Via the valve 34 an additional flow connection is now produced at the Wärmezuführeinlassanschluss 8, which opens out between the Wärmezuführleitungen 28 and 29th For this purpose the valve 34 is, for example, as a multi-way valve, in particular a 3/2-way valve. By means of the valve 34, only the Wärmezuführleitung 28 or alternatively both Wärmezuführleitungen 28 and 29 are acted upon by the supplied through the Wärmezuführeinlassanschluss 8 first working medium in accordance with either. The same applies to the heat withdrawal conduits 30 and 33 and the valve 35. This is fluidly disposed between the heat withdrawal conduits 30 and 31 and also as a multi-way valve, in particular a 3/2-way valve is formed. The first heat extraction line 30 is connected directly to the heat recovery inlet port 16, the second heat extraction line 31 on the other hand to the Wärmeentnahme- outlet port 15. The valve 35 is fluidly disposed between the heat extraction lines 30 and 31 and allows the production of an additional flow connection between the heat withdrawal conduits 30 and 31 has its starting point and leads to the Wärmeentnahmeauslassanschluss 15th The introduced through the heat recovery inlet port 16 second working medium can according to 30 and 31 pass through prior to its subsequent leakage through the Wärmeentnahmeauslassanschluss 15, only the first heat removal line 30, or both, heat extraction lines. The secondary heating source 3 and the heater 10 can either, as shown, between the Wärmezuführein- drain port 8 and be arranged the Wärmezuführauslassanschluss 9 on one side and the heat source 2 on the other side. In this case, it can be connected either in series or in parallel to the source of heat. 2 It may alternatively also on the the solid heat accumulator 21 facing side of the Wärmezuführ- inlet port 8 and the terminal 9 be Wärmezuführauslass-. If a plurality of solid heat accumulator 21 in front of, the heater 10 may be installed as a central for this Zusatzhei- wetting. For adjusting the mass flow of the first working medium through the secondary heat source 3 is at least one valve 36, but preferably two valves are provided 36 and 37, which are formed for example as a multi-way valves, particularly as a 3/2-way valves. In addition, in each case a conveyor, for example an electrically driven pump or the like not illustrated here, for the first working medium and the second working medium is provided.

2 shows a second embodiment of the memory device. 1 In the following, only the difference from the first embodiment, so that is always made to the above description of the first embodiment, the description of the second embodiment. The difference is that instead of the valve 34 are provided valves 38, 39, 40 and 41 and in place of the valve 35. Valves 42, 43, 44 and 45th The valves 38 to 45 are again preferably as a multi-way valves, particularly as a 3/2-way valves running. Via the valves 38 and 39, the Wärmezuführleitung 28 and via the valves 40 and 41, the second Wärmezuführleitung connected to a Wärmezuführverteilleitung 46 29, which at its one end the Wärmezuführeinlassanschluss 8 and at its other end the Wärmezuführauslassanschluss. 9 Thus, each of Wärmezuführleitungen via two valves 38 and 39 or 40 and 41 connected to the Wärmezuführverteilleitung 46 28 and 29th It should be noted that even only one valve per Wärmezuführleitung 28 or 29 is sufficient. For example, therefore, one of the valves 38 and 39 and / or one of the valves 40 and 41 omitted without that the functionality of the memory device is deteriorated. 1

Use of the valves 38 to 41 which belong to the processing Wärmezuführverteileinrich- 32, each of the Wärmezuführleitungen can be applied individually or in any combination with the supplied through the Wärmezuführeinlassanschluss 8 first working medium 28 and 29th In contrast to the first embodiment, so only the first Wärmezuführleitung 28 may also be flowed through during operation of the memory device 1 of the first working medium. The same applies to the heat withdrawal conduits 30 and 31 which tung a Wärmeentnahmeverteillei- via the valves 42 to 45 are connected 47 having on its one side the heat entnahmeauslassanschluss 15 and on its other side the heat removal inlet port sixteenth Here, too, can in turn on at least one of the valves to dispense 42 and 43 respectively 44 and 45, because even one valve per heat generation acquisition circuit 30 or 31 is sufficient to ensure the desired functionality.

Reference to the figures 3 and 4, different switching configurations for the first embodiment of the storage device 1, are discussed below. While in the Figure 1 is a circuit configuration is shown in which is present by appropriately adjusting the valve 34 both through both Wärmezuführleitungen 28 and 29 and through both heat removal lines 30 and 31 respectively, a mass flow greater than zero, for the embodiment illustrated in the figure 3 switching the valve 34 configuration is set such that only the second Wärmezuführleitung 29 is supplied with the first working medium. The first Wärmezuführleitung 28 on the other hand does not flow through the mass flow for these so at least approximately equal to zero. The same applies to the heat extraction lines 30 and 31st Here, the valve 35 is set such that only the first heat removal line 30, but the second heat extraction line is passed through 31 to the second working medium. Thus the mass flow of the second working medium in the second heat meentnahmeleitung 31 is equal to zero.

The pipes 23 are provided such in the solid heat accumulator 21 or to each other such flow-connected such that the first Wärmezuführleitung 28 with the second heat removal line 31, and the second Wärmezuführleitung 29 present with the first heat removal line 30, respectively in a heat accumulator segment 48 and 49th The present in the heat accumulator segments 48 and 49 Wärmezuführrohre 24 and heat extracting tubes 25 are thermally associated with each other. Example is at least one of Wärmezuführrohre 24 of the heat accumulator segment 48 between two heat extracting tubes 25 of the same heat storage segment 48 or 49. Conversely, NATURALLY also lent at least one of the heat removal tubes 25 to be 48 and 49 respectively arranged between two Wärmezuführrohren 24 of each heat storage segment. This is true at least for those illustrated longitudinal section of the solid heat accumulator 21st In the illustrated circuit configuration is only supplied to the heat storage segment 49 and heat removed. In the heat storage segment 48 either is introduced (directly) heat, nor it is removed (immediately) of it. Naturally, however, can pass through heat conduction the heat from the heat accumulator segment 49 in segment 48, the thermal storage and vice versa. Accordingly, an indirect feeding or removal of heat can result.

Figure 4 shows another circuit configuration for the first embodiment of the memory device. 1 The valve 34 is in the same switching position as for the above-described circuit configuration. Accordingly, it is only supplied to the heat storage segment 49 heat, namely 29 by means of the Wärmezuführleitung In contrast to that described with reference to the Figure 3 circuit configuration, it is now provided to adjust the valve 35 such that both the heat storage segment 48 and the heat storage segment 49 of the second working medium flow through, even though the heat storage segment 48 is not heated. In this manner, for example - depending on the temperature of the heat storage segment 48 - the heat storage segment to be heated 48 indirectly using the second working medium and / or by thermal conduction from the thermal storage segment 49, while the second working medium during the passage of the heat storage segment 48 a for the heat consumer 4 suitable temperature are brought structure, which is lower than after passing through the heat storage segment 49. in such a circuit configuration, it also may be provided that a total heat removal quantity, which is composed of the individual, available for the heat storage segments 48 and 49 heat takeout amounts is greater than the overall samtwärmezuführmenge, which is composed of the Wärmezuführmengen for the individual heat storage segments 48 and 49th Accordingly, the present in the solid heat storage 21 stored heat decreases. However, this is only possible if the heat storage segment 48, example as the result of a previous charge has a higher temperature than the second working medium as it enters the heat storage segment 48th

5 shows another embodiment of the memory device 1, which is basically similar as those formed from the figure 1 upstream asked embodiment. Below deals only for this reason the differences and otherwise made to the above statements.

In this embodiment, it is now provided that in addition to the heat consumer 4, a further heat consumer is present 50, which is a Wärmeentnahmeauslassanschluss 51 and a heat recovery inlet port 52 and pipes 53 and 54 connected fluidically to the storage device. 1 In the Wärmeentnahmeverteileinrichtung 33 a further valve 55 is also provided adjacent the valve 35th Via the valve 35, the second heat removal line 31 is connected to the Wärmeentnahmeauslassanschluss 15 and consequently the heat load 4 fluidly connectable. Via the valve 55, the heat removal line 30 to the Wärmeentnahmeauslassanschluss 51 and finally the heat consumer 50 is fluidly connectable. Each of the heat consumer 4 and 50 thus each have a heat sampling lines associated with 30 and 31, in particular exclusively assigned. This means that with one of the heat consumer 4 and 50 fluidly connectable heat removal line 30 or 31 is not connected to the respectively other heat consumer 50, respectively. 4 However, in an alternative execution form (not shown here), this can be provided by a suitable design of the Wärmeentnahmeverteileinrichtung 33rd In this case, each of the heat consumer 4 and 50 with any and / or any combination of heat extraction lines 30 and 31 and possibly further provided heat removal lines can be fluidically connected.

Of course, more than two heat consumer may be 4 and 50 are provided, wherein preferably the number of heat withdrawal conduits 30 and 31 corresponds at least to the number of heat consumers 4 and 50 or greater, in particular is an integral multiple. Of course, can be transmitted to each of the embodiments described above, an embodiment of the memory device 1, to which a plurality of heat consumer can be connected, so in particular to the embodiment of FIG. 2

Figures 6 to 1 1 show two different pipeline configurations, a portion of said solid heat accumulator 21 is shown in cross section. Seen the pipes only partially indicated by reference numeral 23, which are present in the heat storage material 22 are. The pipes 23 are in a plurality of rows 56, 57 and 58 are arranged, which are merely in exemplary. It is clear that in the pipe line configuration of Figure 6, the conduits 23 of immediately adjacent each opposing rows 56, 57 and 58 aligned with each other in horizonta- ler direction.

7 shows the assignment of the known from the figure 6 pipes 13. The pipes 23 of the rows 56 and 58 are as Wärmezuführrohre 24 formed while the pipes 23 of the row 57, so the row lying between the rows 56 and 58 as heat discharge pipes be the 25th

Figure 8 shows a further configuration in which a portion of the piping 23 are formed as a further heat removal tubes 59 or alternatively, as a further Wärmezuführrohre. These can be independent of the Wärmezuführrohren 24 and 25 the first of the working medium or the second working medium to flow through. For example, the heat extraction pipes 25, 59 associated with the heat consumer 50 for the embodiment illustrated in the Figure 5 embodiment, the heat consumer 4 and the heat extracting tubes.

The figure 9 shows an alternative conduit configurations. Again, the conduits 23 are arranged in rows 56, 57 and 58th Here, however, the pipes 23 are of immediately adjacent each side rows 56 and 57 or 57 and 58 in the horizontal direction are arranged offset to one another. It may additionally be provided that the pipelines are in turn again arranged 23 are not directly adjacent rows 56 and 58 in the horizontal direction in alignment with each other.

Different distributions of the pipes 23 in Wärmezuführrohre 24 and heat extracting tubes 25 and, optionally, heat extracting tubes 59 are shown in Figures 10 and 1. 1 These this applies to Figures 7 and 8 applies accordingly.

Claims

claims
1 . Memory means (1) for intermediate storage of thermal energy, with at least one solid heat storage (21), in particular a concrete heat storage, characterized gekennzeich- net that in the solid heat accumulator (21) at least one Wärmezuführleitung (28,29) for a first working medium and at least one fluidically from the Wärmezuführleitung (28,29) separate heat removal pipe (30,31) are arranged for a second working medium at least partially.
2. Memory device according to claim 1, characterized in that the Wärmezuführleitung (28,29) has at least two Wärmezuführrohre (24) and the heat extraction line (30,31) at least two heat extracting tubes (25) that the solid heat accumulator (21) from a first end face (26) opposite second end face (27) at least partially, in particular completely, by grab (26) to one of the first end face, wherein in each case two of the Wärmezuführrohre (24) in the region of the first end face (26) and two of the heat extracting tubes (25) are connected together in the region of the second end face (27) fluidically.
3. Memory device according to one of the preceding claims, characterized in that a plurality Wärmezuführleitungen (28,29) and / or more heat extraction lines (30,31) are provided.
4. Memory device according to one of the preceding claims, characterized in that at least one of heat supply lines (28,29) via at least one valve (34) zuführverteileinrichtung a heat (32) to a Wärmezuführeinlassanschluss (8) or a Wärmezuführauslassanschluss (9) said memory means (1) is connected.
5. Memory device according to one of the preceding claims, characterized in that at least two of the Wärmezuführleitungen (28,29), in particular all Wärmezuführleitungen (28,29), in each case via at least one multi-way valve (38,39,40,41) (a Wärmezuführverteilleitung 46) are connected, wherein the Wärmezuführverteilleitung (46) comprises the Wärmezuführeinlassanschluss (8) and the Wärmezuführauslassanschluss (9).
6th memory device according to one of the preceding claims, characterized in that at least one of the heat extraction lines (30,31) via at least one valve (35) of a Wärmeentnahmeverteileinrichtung (33) to a Wärmeentnahme- inlet port (16) or a Wärmeentnahmeauslassanschluss (15) the storage means (1) is connected.
7. Memory device according to one of the preceding claims, characterized in that at least two of the Wärmezuführleitungen (28,29), in particular all Wärmezuführleitungen (28,29), in each case via at least one multi-way valve (42,43,44,45) to a Wärmeentnahmeverteilleitung (47) are connected, wherein the Wärmeentnahmeverteilleitung (47) comprises the Wärmeentnahmeein- drain port (16) and the Wärmeentnahmeauslassanschluss (15).
8. The memory device according to one of the preceding claims, characterized in that the Wärmezuführrohre (24) and said heat extracting tubes (25) of pipes (23) are formed which in the vertical direction in a plurality of rows (56,57,58) (in the solid heat storage 21) are arranged, wherein at least some of the pipes (23) lying adjacent to each other rows (56,57; 57,58) in the horizontal direction in alignment or offset from each other.
9. Memory device according to one of the preceding claims, characterized in that a plurality of solid heat accumulator (21) are provided, wherein the pipes (23) of the solid heat accumulator (21) fluidly connected in series or connected in parallel.
10. Memory device according to one of the preceding claims, characterized in that the plurality of solid state heat accumulators (21) have a common Wärmezuführverteileinrichtung and / or common Wärmeentnahmeverteileinrichtung is assigned, or that separate Wärmezuführverteileinrichtungen and / or Wärmeentnahmeverteileinrichtungen are provided for at least a portion of the solid heat accumulator (21).
1. 1 Memory means che according to any preceding Ansprü-, characterized in that the pipes (23) consist of a material having a greater thermal conductivity than the material of the solid heat accumulator (21).
12. The memory device according to any one of the preceding claims, characterized in that the solid heat accumulator (21) of concrete, ceramic, mineral bulk material, steel or a mixture of these materials.
13. The memory device according to one of the preceding claims, characterized in that a plurality Wärmeentnahmeein- let terminals (16) and a plurality Wärmeentnahmeauslassan- connections (15) are provided which are fluidly connected, respectively with at least one heat extraction line (30,31).
14. The memory device according to any one of the preceding claims, characterized in that only a Wärmezuführeinlass- connection (8) and only one Wärmezuführauslassanschluss (9) is provided.
15. The memory device according to any one of the preceding claims, characterized in that in the solid heat accumulator (21) at least one temperature sensor is embedded.
16. The memory device according to any one of the preceding claims, characterized in that a heating device (10), in particular an electric heater coupled in flow communication with at least one Wärmezuführleitung (28,29) or is connectable.
17. A method of operating a memory device (1) for intermediate storage of thermal energy, in particular a storage device (1) according to one or more of the preceding claims, wherein said storage means (1) at least one solid heat storage (21), in particular a concrete heat accumulator, characterized in that in the solid heat accumulator (21) at least one Wärmezuführleitung (28,29) for a first working medium and at least one of flow of the Wärmezuführleitung (28,29) separate heat removal pipe (30,31) are arranged for a second working medium comprises at least loading rich example wherein the mass flow of the first working medium through the Wärmezuführleitung (28,29) and the mass flow of the second working medium through the heat removal pipe (30,31) can be adjusted independently.
18. The method according to claim 17, characterized in that the mass flow rates are adjusted so that the maximum temperature of the first working medium is different from the maximum temperature of the second working medium, in particular even if the solid heat accumulator (21) at the same time heat is supplied via the first working medium and on the second working medium is removed.
19. A method according to any one of the preceding claims, characterized in that the first working medium from the second working medium selected differently, especially as a first working fluid, a first oil, preferably a thermal oil, and as the second working medium is water, a water-containing solution or a second oil , in particular a thermal oil is used.
20. The method according to any one of the preceding claims, characterized in that the solid heat accumulator (21) into a plurality of logical heat storage segments (48,49) is divided, each having at least one Wärmezuführleitung (28,29) and at least one heat extraction line (30,31) wherein the temperature of a temperature sensor is determined each heat storage segment (48,49) by at least.
21st Method according to one of the preceding claims, characterized in that at least in a first mode for a cooler of the heat storage segments (48,49) increases the mass flow through the respective Wärmezuführleitung (28,29) and / or the mass flow through the respective heat removal line ( 30,31) is reduced and / or (for a warmer, the heat storage segments 48,49) of the mass flow through the respective heat supply line (30,31) is reduced and / or the mass flow through the respective heat removal pipe (30,31) is increased.
22. The method according to any one of the preceding claims, characterized in that at least in a second mode of the mass flow through the Wärmezuführleitung (28,29) for supplying a certain heat supply in a first of the heat storage segments (48,49) is set, wherein the mass flow through the heat removal pipe (30,31) is set at least one other of the heat storage segments (49,48) for extracting a specific heat removal amount that is greater than or equal to the heat supply.
23. The method according to any one of the preceding claims, characterized in that at least in the second operating mode the mass flows through the Wärmezuführleitungen (28,29) and the heat withdrawal conduits (30,31) are adjusted such that the sum of Wärmezuführmengen the sum of the heat extracting amounts corresponding or greater than this.
24. The method according to any one of the preceding claims, characterized in that at least in the second mode, the mass flow through the Wärmezuführleitung (28,29) only for a part of the heat storage segments (48,49) greater than zero is set, while the mass flow through the heat removal pipe (30,31) for at least one of the heat storage segments (48,49) for which the mass flow through the Wärmezuführleitung (28,29) is equal to zero, is set greater than zero.
PCT/EP2013/071116 2012-10-12 2013-10-10 Storage device for temporarily storing thermal energy, and method for operating a storage device WO2014057014A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE201210218634 DE102012218634A1 (en) 2012-10-12 2012-10-12 Memory means for temporary storage of thermal energy as well as methods of operating a memory device
DE102012218634.4 2012-10-12

Publications (1)

Publication Number Publication Date
WO2014057014A1 true WO2014057014A1 (en) 2014-04-17

Family

ID=49382402

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2013/071116 WO2014057014A1 (en) 2012-10-12 2013-10-10 Storage device for temporarily storing thermal energy, and method for operating a storage device

Country Status (2)

Country Link
DE (1) DE102012218634A1 (en)
WO (1) WO2014057014A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104266340A (en) * 2014-10-23 2015-01-07 海南大学 Wind-power rotary disc type viscous friction water heater
BE1024015B1 (en) * 2016-07-29 2017-10-27 Cesi Power Exchanger A heat exchanger for solar thermal collector

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013201251B4 (en) 2013-01-25 2016-03-24 Cm-Institute (Civilisations Matter) E.V. A method of operating a water treatment system, corresponding water treatment plant, as well as use of the method for treatment of raw water

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19826625A1 (en) * 1998-06-17 1999-12-23 Lieselotte Glas Low-energy building using solar energy
DE19944438A1 (en) * 1999-09-16 2001-03-22 Hdb Weissinger Gmbh heat storage
DE10101622A1 (en) * 2001-01-16 2001-12-06 Frank Koehne Heat energy store with warm water tank takes energy from heating and cooling of solid body, e.g. of concrete, stores it and yields it in controlled manner

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19826625A1 (en) * 1998-06-17 1999-12-23 Lieselotte Glas Low-energy building using solar energy
DE19944438A1 (en) * 1999-09-16 2001-03-22 Hdb Weissinger Gmbh heat storage
DE10101622A1 (en) * 2001-01-16 2001-12-06 Frank Koehne Heat energy store with warm water tank takes energy from heating and cooling of solid body, e.g. of concrete, stores it and yields it in controlled manner

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104266340A (en) * 2014-10-23 2015-01-07 海南大学 Wind-power rotary disc type viscous friction water heater
CN104266340B (en) * 2014-10-23 2016-08-17 海南大学 A wind viscous friction rotary disc-type water heater
BE1024015B1 (en) * 2016-07-29 2017-10-27 Cesi Power Exchanger A heat exchanger for solar thermal collector
WO2018019858A1 (en) * 2016-07-29 2018-02-01 Cesi Power Exchanger Heat exchanger for a thermal solar collector

Also Published As

Publication number Publication date
DE102012218634A1 (en) 2014-04-30

Similar Documents

Publication Publication Date Title
US4286141A (en) Thermal storage method and system utilizing an anhydrous sodium sulfate pebble bed providing high-temperature capability
US2933885A (en) Heat storage accumulator systems and method and equipment for operating the same
Ataer Storage of thermal energy
DE102011000655A1 (en) Heat transporting method, involves changing volume of chambers, so that total capacity of chambers is constant, and connecting chambers with connection pieces, such that filling and draining of chambers takes place temporarily at same time
US20110286724A1 (en) Modular Thermal Energy Retention and Transfer System
US20110174296A1 (en) Solar-thermal energy storage system and methods of making and using same
WO1998040684A1 (en) Equipment and process for heat energy storage
EP0987510A2 (en) Heat storage
CN1391074A (en) Method and equipment for using solar energy to accumulate heat and provide heat or cold
US20100287933A1 (en) Thermal energy storage apparatus
US20120048259A1 (en) Solar installation
US20130240171A1 (en) Method and apparatus for storing thermal energy
WO2008135100A1 (en) All-purpose heat store for storing different types of energy
CN203383888U (en) Waste heat recycling device for automobile exhaust
Jian et al. Design and optimization of solid thermal energy storage modules for solar thermal power plant applications
RU85989U1 (en) Combined heating system
EP0028512B1 (en) Storage and recovery systems for electrically generated energy
US20080092575A1 (en) Solar air conditioning system
CN200955863Y (en) Heat pipe type flue gas residual heat fuel heater
WO2002012814A1 (en) Latent heat storage device
KR101219315B1 (en) Hybrid geothermal system for geotherm restoration and efficiency enhancement and operation method thereof
WO1997041395A1 (en) Low temperature heating system
DE10108152A1 (en) Latent heat storage device used for storing latent heat comprises a heat exchanger for heating and cooling a latent storage medium arranged in a first storage container located within a second, outer storage container
WO2002065034A1 (en) Inter-region thermal complementary system by distributed cryogenic and thermal devices
NL1018449C2 (en) Heat exchange in boilers by using heat pipes.

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13777256

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct app. not ent. europ. phase

Ref document number: 13777256

Country of ref document: EP

Kind code of ref document: A1