EP4257909A1 - Unité de stockage de chaleur - Google Patents

Unité de stockage de chaleur Download PDF

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Publication number: EP4257909A1
Authority: EP; European Patent Office
Prior art keywords: hollow; heat; hollow chambers; storage unit; heat storage
Prior art date: 2022-03-24
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.): Granted

Application number

EP23160857.1A

Other languages

German (de)

English (en)

Other versions

EP4257909C0 (fr

EP4257909B1 (fr

Inventor

Thomas Piller

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.)

Individual

Original Assignee

Individual

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.)

2022-03-24

Filing date

2023-03-09

Publication date

2023-10-11

2023-03-09 Application filed by Individual filed Critical Individual

2023-10-11 Publication of EP4257909A1 publication Critical patent/EP4257909A1/fr

2024-05-29 Application granted granted Critical

2024-05-29 Publication of EP4257909C0 publication Critical patent/EP4257909C0/fr

2024-05-29 Publication of EP4257909B1 publication Critical patent/EP4257909B1/fr

Status Active legal-status Critical Current

2043-03-09 Anticipated expiration legal-status Critical

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Classifications

- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
- F28D20/021—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material and the heat-exchanging means being enclosed in one container
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat

Definitions

the invention relates to a heat storage unit with at least one storage block, which is designed as a bundle of several mutually parallel, longitudinally elongated, z-direction, closed hollow chambers made of hollow profiles, each of which is filled with PCM material, in the xy -Direction extended cross-sectional plane both in the x-direction and in the y-direction of the storage block at least two hollow chambers with wall sections (a, b, c, d) of their peripheral walls are arranged directly next to each other or indirectly via a thin, highly heat-conducting contact layer, the peripheral walls at least in part of their pairs of opposite wall sections (a, b) are provided with troughs running in the longitudinal direction over their entire length, the troughs in the peripheral walls of two adjacent hollow chambers complement each other in cross section to form a closed, in particular circular, ring and through A line arrangement is guided through the storage block for passing a heat-transporting fluid, which has at least one line with a plurality of line sections, which
a heat storage unit of this type and also assembly steps for its assembly are in the one from the applicant WO 2021/078437 specified.
troughs are provided, particularly in edge regions of hollow chambers formed from square hollow profiles running parallel to one another, into which line sections of a line arrangement are inserted in order to pass a heat transfer fluid, in particular water.
a so-called phase change material, PCM material is filled into the hollow chambers in order to temporarily store the heat contained in the heat transfer fluid and, if necessary, to release it back to it.
the hollow chambers which are thus combined into a bundle, are surrounded on the circumference by thermal insulation material and, with regard to their vertical orientation, are accommodated in a base at the bottom and covered at the top by means of a thermally insulating cap.
This structure enables a cheap production method; However, there are still opportunities for improvement to ensure the most efficient use of energy.
a surface element is shown with a heat-conducting shell that surrounds a phase change material, the surface element being directly or indirectly in a heat-conducting connection with a heating or cooling line.
phase change material PCM material
this material can be easily integrated into heating or cooling ceilings or into wall and underfloor heating systems, with a hollow profile or plate filled with PCM material heat-conducting connection can be arranged with a concrete ceiling.
two hollow profiles can each be provided with a recess on adjacent side surfaces in order to accommodate a line for a heat-conducting fluid and to enclose it over the entire surface. The adjacent side surfaces are z. B.
Another heat storage unit is in the DE 20 2018 100 856 U1 shown.
a heat storage or buffer storage which is designed to supply process water, in particular heating and/or drinking water, is surrounded on the outside of its container wall in a heat-conducting manner with a pocket-like carrier into which a phase change material (PCM material) is filled.
PCM material phase change material
the DE 10 2017 125 669 A1 shows a bundled arrangement of z. B. rotationally symmetrical hollow bodies as heat storage elements in which latent heat storage medium is accommodated.
the heat storage elements are arranged in a first container section of a container and are open to a second container section of the container.
the heat storage elements with the latent heat storage medium are surrounded in the first container section by a heat transfer medium (in particular water), which flows through a third cavity of the container, which surrounds the second container section.
the open heat storage elements are intended to enable volume changes in the heat storage medium and to achieve the same thermodynamic equilibrium states in the heat storage elements.
the DE 10 2011 004 202 A1 shows a latent heat storage element with a circular cylindrical outer shape, in which latent heat storage material is accommodated together with a matrix made of a material with increased thermal conductivity compared to the latent heat storage material.
the individual latent heat storage elements are surrounded by a heat transfer fluid.
the DE 20 2010 000 027 A1 shows a further latent heat storage with a line arrangement arranged in a container and held therein by means of a support structure, in which a heat transfer fluid is guided, the heat storage medium being arranged in heat-conducting contact with the line system in the cavity surrounded by the outer jacket.
the DE 10 2009 036 550 A1 also shows a latent heat storage system.
two subareas are formed for the pipe system carrying the heat transfer medium and the heat storage medium and the heat transfer medium (working medium) is also guided through flow spaces that are formed in the storage medium itself.
the storage medium here is e.g. B. designed as a one-piece, monolithic solid body traversed by flow spaces or as a bulk solid body.
the DE 10 2011 107 270 A1 shows a heat storage with a container in which a fluid, in particular water, is filled, in connection with an arrangement of phase change material for storing thermal energy.
the phase change material is arranged in the fluid in bodies that are in thermally conductive contact with the fluid or, in another embodiment, is accommodated in a storage extension in the form of a shell-shaped or layer-shaped additional casing on the outside of the container.
Layered heat storage is also specified, with the layers containing fluid at different temperatures have and the layers are assigned phase change materials with different conversion or transition temperatures (threshold temperatures).
a heat storage unit discloses a container with a mixture of phase change material and graphite powder.
the phase change material is introduced into a space between an inner and outer container wall.
A1 1 is an apparatus for heating water comprising a hot water storage tank, a heating assembly arranged to heat water in the storage tank, and a heat exchange device disposed in the heat storage unit in a fixed relationship relative to a position of the heating assembly, the Heat exchange device comprises a hollow object and a phase change material within the hollow object.
the present invention is based on the object of providing a heat storage unit which results in the most efficient operation possible with as little manufacturing effort and as wide a range of possible uses as possible, particularly in connection with storage containers for hot water or similar fluids, and of specifying a method for producing the heat storage unit.
a line arrangement for conducting a heat-transporting fluid is guided through the storage block, that the storage block is a bundle of several parallel, mutually parallel, with wall sections of their peripheral wall tightly adjacent to one another (directly or via a good heat-conducting thin intermediate layer), longitudinally elongated closed hollow chambers is designed, which are each filled with PCM material, that the peripheral walls are each provided with troughs running in the longitudinal direction, and that the line arrangement has at least one line with a plurality of line sections, which are heat-conductively connected to the troughs in direct contact or via a heat-conducting agent the adjacent areas of the peripheral wall and above are connected to the PCM material.
the storage block which is designed as a bundle of several closely and heat-conducting hollow chambers with their circumferential walls lying against one another and closed on all sides with the phase change material accommodated therein, results in a compact heat-storing unit, which, for. B. is not installed in a container filled with liquid and is easy to handle due to its structure and offers good spatial accommodation options.
the bundle of several hollow chambers arranged next to one another in the x and y directions can, on the one hand, be put together simply by laterally joining them together using the holding element arrangements, which also results in a tight, compact, good heat transfer contribute to the supporting position of the hollow chambers, and can also z. B. via externally applied straps or straps and / or a z. B.
the wall thicknesses of the peripheral walls of the hollow chambers can be thin, e.g. B. in the range of one or more mm, e.g. B. between 0.5 and 3 or 4 mm, and still be stable, and the cross-sectional dimensions of the chambers can z. B. with a square or rectangular cross section, approximately between 1 cm and 10 cm, e.g. B. between 3 cm and 5 cm or 8 cm, or possibly deviate from these dimensions, depending on the required size or storage capacity of the memory block.
the line sections can be sealed and in close contact with the wall sections surrounding them, e.g. B. insert using an adhesive or sealing material, so that z. B. also prevent damage between different materials, especially metals, as a result of different electrochemical potentials while maintaining good heat transfer.
the measures according to the invention contribute to efficient functioning and a compact structure in that the hollow chambers, which are closed on all sides, are each formed from hollow profile bars that are closed all around.
the hollow profile bars can easily be provided in a suitable length (e.g. by cutting a longer hollow profile bar) and number. They are preferably tightly closed on one end side (when installed vertically on the lower side) and, when filled, are also firmly or preferably openable on the other side (when installed vertically on the upper side) with a lid part or a closure element inserted therein in an openable manner , whereby any changes in volume can also be compensated for via the lid part.
individual hollow chambers with a square or rectangular cross-section square hollow profiles are formed, by means of holding element arrangements molded on the outside of their peripheral walls with mutually complementary holding elements running longitudinally in the z direction in a row direction (x or y) to form a layer of several hollow chambers placed next to one another, with line sections in troughs between wall sections of the hollow chambers are inserted, that several layers of assembled hollow chambers are stacked with their end wall sections oriented at right angles to the direction of arrangement in alignment with one another, that the layers placed on top of one another form a bundle by means of at least one folded band and / or by means of a cap placed on top of at least one end section of the bundle and / or the base is held together at the bottom, that the line sections are connected via connecting pieces to form a line arrangement and that the storage block is encased on the circumference by means of heat-insulating material before or after placing the cap and / or the base.
the measures are advantageous that the hollow chambers formed from hollow profiles with their circumferential wall, except for the troughs and holding element arrangements and, if necessary, a recessed edge area next to the holding web, each have the same, essentially rectangular or square cross-section with the xz -Plane and have wall sections (c, d; a, b) that are plane-parallel to the yz plane and that the hollow chambers lined up in the x direction with their two wall sections (c, d) oriented in the xz plane and those lined up in the y direction Hollow chambers with their two wall sections (a, b) oriented in the yz plane are aligned with one another.
An advantageous assembly when arranging several hollow profiles or hollow chambers next to each other in a single layer is made possible by that for each hollow profile only one wall section (yz plane or xz plane) which is extended at right angles to a direction of arrangement (x or y) has a hanging groove (14) and only the other wall section (yz) which is extended at right angles to this direction of arrangement (x or y).
-plane or xz plane are provided with a retaining web, the hanging groove and the retaining web of the hollow profile being at the same distance (d) with respect to the same wall section (xz plane or yz plane) extended in the rowing direction (x or y), so that the latter wall sections lie aligned in a common plane in the alignment direction (x or y) of adjacent hollow profiles in the assembled state.
the wall section (a) in which the hanging groove is arranged, except for the groove opening has a clear opening width and at least one trough is flat and is otherwise extended up to the profile edges that delimit it and run in the z direction, possibly somewhat rounded, that the clear opening width of the hanging groove is at most one-sixth or eighth of the width of the relevant wall section and that the retaining groove is relative to the center its groove opening is arranged closer to one of these two profile edges than to the other profile edge, in particular in the outer edge-side quarter of this wall section, the distance between the edge-side opening edge of the retaining groove and the near profile edge being the distance between the side of the projection part of the retaining web adjacent to the opening edge and (essentially) corresponds to the near profile edge, so that the wall sections of adjacent hollow profiles oriented at right angles to these wall sections are aligned with one another.
the wall section (b) provided with the retaining web in the area between the edge-side attachment point of the projection part and the near profile edge of this hollow profile widens outwards towards the edge area
a recess in particular a bevel at an angle
two hollow profiles or hollow chambers to be assembled can first be positioned obliquely to one another with respect to the rowing direction and joined together in or against the rowing direction with their holding elements (retaining groove and holding web) and then can be pivoted against each other about the z-axis until they lie close together with their facing contact surfaces of the wall sections.
a line section can simply be inserted, if necessary after applying a suitable heat-conducting contact layer.
a reliable connection between hollow profiles or hollow chambers joined together by means of their holding elements is ensured by the fact that the clear opening width of the groove opening is greater than the thickness of the projection part of the holding web measured in the same direction but less than the sum of the thickness of the projection part and the length of the in the retaining lug protruding in the same direction and engaging behind the retaining edge in the assembled state, which is at most as long as the width of the retaining edge in this direction, and that the groove depth is greater than the length of the projection part with the retaining lug in the depth direction of the hanging groove.
the joined hollow profiles cannot be pulled apart in the direction of the row.
the projection part is rounded on its side facing away from the retaining lug in the transition area to the retaining lug so that unhindered oblique insertion and pivoting of the retaining web into the retaining groove is possible during assembly.
troughs - with respect to an imaginary shape that is not troughed and not provided with a holding element arrangement - are arranged along flat wall sections of the peripheral wall.
a particularly good heat transfer between the fluid, in particular water, flowing through the line sections and the phase change material is achieved in that the peripheral walls of the hollow chambers are made of metal, in particular aluminum.
a further advantageous embodiment for production and function with good heat transfer is that the line sections are made of metal, in particular copper.
An embodiment that is advantageous for the function is that in each wall section of each polygonal hollow profile, in particular rectangular or square square hollow profile, a trough is arranged centrally with respect to the cross-sectional width of the wall section, and further in that the hollow chambers are tightly closed at the front on both sides with a cover part , in particular an upper lid part when set up is provided with an openable closure part.
the line arrangement has at least one input section and at least one output section for connection to a hot water tank.
a line can be connected to an input section or output section, which runs through the entire storage block between the hollow chambers or their peripheral walls, or several line sections can branch off in parallel from an input section or output section, so that e.g. B. a lower flow rate can be obtained through the individual line sections with flow velocities that are advantageous in accordance with the heat transfer times.
Different sizes of heat storage units in terms of geometry and/or heat storage capacity can be provided simply by combining several storage blocks adjacent to one another in the longitudinal direction (z-direction) and/or adjacent to one another in the transverse direction (xy-direction) to form a storage block unit.
PCM materials with conversion temperatures that are different relative to one another such as e.g. B can be filled in suitable groupings of hollow chambers, whereby the line arrangement can also be provided with several input sections and output sections as well as associated line sections, for example. B. to store heat appropriately or specifically according to the temperature of different fluid layers or water layers within the storage container.
the measures also contribute to precise assembly and good function: the bundle of hollow chambers of a storage block made up of several linearly lined up in a row direction (x direction or y direction perpendicular to the z direction or longitudinal direction) into one by means of the holding element arrangement Hollow chamber layer held together and several layers placed one on top of the other, with their two end wall sections aligned with one another in one plane.
the assembly and function are also facilitated by the fact that the bundle of hollow chambers of a storage block is held together by means of at least one folded, tensioned band.
the measures also contribute to an advantageous structure and good function: the bundle of hollow chambers of a storage block with a lower end section is accommodated, in particular inserted, in a heat-insulating base, and that the bundle is on the circumference and on its top side is covered by external insulation, in particular plate-shaped, thermal insulation material.
troughs are also present between the layers in the wall sections of the hollow profiles, into which line sections of the line arrangement are inserted.
Fig. 1A shows a storage block 3 of a heat storage unit 1 extending along a longitudinal axis (in direction z) with a bundle of closely grouped hollow profile bars 10 forming hollow chambers and a line arrangement 2 with line sections 23 running in the longitudinal direction between the hollow profile bars 10 (cf. enlarged detail A in Fig. 1B ).
a fluid heat transfer fluid
the formation of the hollow chambers from the hollow profile bars 10 results in design options for storage blocks 3 that can be easily adapted to the respective requirements.
the hollow profile bars 10 can be cut to the desired length from longer hollow profiles. They are filled with a phase change material (PCM material) in their cavity 11 and, after filling in the PCM material, sealed at the front side, with the end of one end (lower when installed vertically) advantageously being firmly attached and the end on the other (at vertical installation, the upper end face is advantageously at least partially removable as a cover part.
a closure part is inserted into the cover part, e.g. B. screwed in with a thread, fixed with bayonet fittings or snapped in or pressed in.
the lid part e.g. B. in the area of the closure part, is preferably designed or attached so that it can react to changes in volume of the PCM material.
the entire storage block 3 can be positioned, for example, standing on or in a stable base 5 or lying on support struts or
the line sections 23 are inserted into troughs 13 in the peripheral walls 12 of the hollow profile bars 10 and connected to one another via the intermediate pieces, for example arcuate sections, and connected in a fluid-conducting manner at their input ends to the input section 21 and at their output ends to the output section 22.
the threshold temperature at which the phase transformation or heat storage and heat release takes place without a change in temperature depends on the type of PCM material and e.g. B. in a temperature range between z. B. 35 °C and 80 °C. In the context of a solar heated hot water tank, it is advantageous to choose one or more PCM materials with a threshold temperature in the range between 55 °C and 80 °C.
the hollow profile bars 10 consist of a good heat-conducting material, in particular metal, preferably aluminum, and are advantageously polygonal, preferably rectangular or square, or z.
the depressions 13 are in the present case formed in the wall sections of the hollow profile bars 10 which are closely opposite each other in pairs (directly or indirectly via a contact layer that transfers heat well) (cf. Fig. 2A ).
the line sections 23, which are correspondingly adapted in the cross section, in the present case also rounded, namely circular, are inserted tightly in order to ensure good heat conduction from the fluid via the line wall, if necessary the contact layer, and the peripheral wall 12 of the hollow profile bars 10 to produce the PCM material.
good heat-conducting sealing material or adhesive material is introduced in the transition area between the peripheral surfaces of the line sections 23 and the troughs 13 in order to exclude moisture retention. This means that negative influences from electrochemical potentials between different metals of the line sections 23 and the hollow profile bars 10 can be avoided if, for example.
the line sections 23 or lines 20 are made of copper and the hollow profile bars 10 are made of aluminum.
the hollow profile bars 10 and the lines 20 can also be made from the same or similar metals, which are at least highly heat-conducting.
the hollow profile bars 10 lie close to one another with the flat wall sections a/b, c/d of their peripheral wall 12 along their adjacent sides, directly or indirectly via a contact layer, in a good heat-conducting manner and, with their opposite pairs of complementary troughs 13, form the receptacles for the associated line sections 23, which, in cross-section, enclose them completely (except for a gap that can practically not be completely avoided), if necessary together with the contact layer.
the storage block 3 can be connected to a fluid reservoir, in particular a hot water tank, for supplying or removing the fluid to be tempered, in particular water.
the input section or possibly several input sections 21 and/or the or possibly several output sections 22 can or can be arranged protruding from the front or on one or more sides of a storage block 3, so that a simple connection option is provided.
Memory blocks 3 can be constructed with different lengths L in the z direction and width or thickness in the x and y directions. Storage blocks 3 can thus be provided, which overall result in a cavity volume of the cavities 11 with the filled PCM material that is appropriate for the respective heat storage purpose and thus an appropriate storage capacity.
the cross section of the cavities 11 of the individual hollow profile bars 10 as well as the thickness of the peripheral wall 12 can also be selected appropriately, with the width or thickness of the individual hollow profile bars 10 z. B. in the range between 1 cm and 10 cm, such as. B. can be between 3 cm and 5 or 6 cm or 8 cm and the thickness of the peripheral wall 12 in the mm range, e.g. B. can be between 0.5 and 3 mm.
PCM materials with different threshold temperatures can also be filled into the cavities 11 of different hollow profile bars 10 within a storage block 3, the line arrangement 2 being provided with assigned input sections 21, output sections 22 and line sections 23 as well as adapted intermediate pieces.
Another design variant or possibility of adapting to different heat storage capacities results from several storage blocks 3 being combined to form a larger heat storage unit 1, for example.
Another or additional variation possibility results from combining individual line sections within a storage block through fixed or (e.g. via valves) controlled parallel and/or series connection by means of an appropriate arrangement or design of the intermediate pieces.
the bundles of hollow profile bars 10 are z. B. held together by means of circumferential straps or a sheath.
the heat storage unit 1 or a storage block 3 can be surrounded by a heat-insulating jacket, such as. B. a thermal external insulation made of four flat, plate-shaped thermal insulation panels, which are attached, for example, by means of Velcro fasteners Memory block 3 can be attached detachably.
a heat storage unit 1 comprises hollow profile bars 10 into which PCM materials with different threshold temperatures are filled, those with a lower threshold temperature can be arranged more on the outside and those with a higher threshold temperature more on the inside in order to keep heat transfer to the environment as low as possible.
FIG. 1A, 1B shown structure of the memory block 3, in particular with those in the Figures 2A and 2B Hollow profiles shown in cross section result in a clear, exact arrangement with simple assembly steps and close, well heat-conducting contact between adjacent wall sections a/b or c/d and the line sections 23 carrying the heat-transporting fluid.
FIG. 2A based on a bundle of four hollow profile bars 10 (or hollow profiles) in a cross-sectional plane, two in the x direction and two in the y direction, the hollow profiles 10 consist largely (neglecting smaller contours in their peripheral wall 12) in square hollow profiles, and although in the present case with a square cross section. A similar structure with rectangular hollow profiles would also be possible.
each of the four wall sections a, b, c and d there is a semicircular depression 13 in the middle with respect to the extent in the cross-sectional plane, which is complemented by an opposite depression of an immediately adjacent hollow profile to form a complete free space which is circular in cross-section, wherein the wall sections of adjacent hollow profiles running in the direction of alignment are aligned with one another or lie in the same plane.
respective line sections 23 are inserted into the resulting circular free spaces, which are then completely surrounded by the adjacent hollow profiles in close contact after the adjacent hollow profiles have been placed against one another, as shown Fig. 1B visible.
each hollow profile 10 which are oriented at right angles to the rowing direction x, are close its profile edge K1, which merges into the same profile side, is provided with holding elements, which consist of a hanging groove 14 on one wall section a and a holding web 15 on the other wall section b.
holding elements consist of a hanging groove 14 on one wall section a and a holding web 15 on the other wall section b.
the holding elements in the form of the hanging groove 14 on the one hand and the holding web 15 on the other hand preferably run continuously in the z direction over the entire length of the hollow profile 10 (although interruptions are not excluded, but would be less favorable for the profile formation) and are designed in such a way that they are in one
a combination of a translational movement and a rotational movement can be inserted into one another, the two wall sections a, b first being placed into one another in an oblique orientation to one another in the cross-sectional plane and then pivoted against one another in a hinge-like manner by a pivoting movement until they come into flat contact with their wall sections a, b, after A respective line section 23 has previously been inserted into the circular free space between the relevant troughs 13.
the hollow profile provided with the retaining web 15 is between the retaining web 15 and its (imaginary) adjacent profile edge are beveled at an angle ⁇ compared to the further (in cross-section) rectilinear course of the wall section b, so that a recess bb results between the wall section a provided with the hanging groove 14 and the bevel.
the hollow profile having the retaining web 15 can be inserted with its wall section b with an oblique orientation to the adjacent wall section a of the hollow profile having the hanging groove 14 with the retaining web 15 without hindrance into the hanging groove 14 and then pivoting with its wall section b into flat contact with the wall section a can be moved.
the retaining web 15, which protrudes with a projection part 151 on the wall section b, is provided with a retaining lug 150 which is directed parallel to the wall section b and points outwards (in the direction of the profile edge).
the hanging groove 14 is provided with a retaining edge 140 (in the form of a profile section) directed in the same direction as the adjoining wall section a and pointing away from the profile edge K1, which limits the groove opening to the groove space formed by the hanging groove 14 to a clear width w, which is slightly larger than the thickness s of the projection part 151 of the retaining web 15, which runs parallel to the wall section a or b.
the length I of the retaining lug 150 which runs parallel to the wall section a or b (in the bayed state), is approximately as long (or slightly shorter) than the holding edge 150 of the hanging groove 14 pointing in the same direction.
the groove depth t (between the outside of the wall section a and the groove base) is slightly larger than the extension of the projection part 151 pointing in the depth direction and the sum of the thickness of the projection part s and the length of the retaining lug I is slightly less than the extent of the groove space in the direction of the wall section a behind the retaining edge 140.
the distance d of the edge of the projection part 151 pointing towards the profile edge is approximately as large as the distance between the profile edge K1 and the
the edge of the retaining edge 140 delimits the clear width of the groove opening, so that in the assembled state of the lined up hollow profiles 10, they run in the line up direction (here x direction).
Wall sections c, d lie aligned with one another in the same plane (the hollow profile bars 10 each having the same cross-sectional contour).
the holding elements, hanging groove 14 and holding web 15, with their above-mentioned components are coordinated with one another in such a way that the adjacent hollow profiles 10, which are lined up next to one another, lie closely together with their mutually facing wall sections a, b, which is supported by the pivoting process.
the profiles cannot be pulled apart in the direction of arrangement because the retaining lug 150 engages behind the retaining edge 140.
the projection part 151 of the holding web 15 is rounded off towards the bottom of the groove on its side remote from the holding nose 150.
the pivoting process is also supported by the fact that the holding element arrangement 16 and the recess bb in the embodiment mentioned are close to one profile edge K1 and away from the other profile edge K2 delimiting the same wall section.
the next layer can be formed from correspondingly lined up hollow profiles 10 (e.g. in the y direction ) are placed on the previous layer in such a way that the end wall sections c, d of the layers placed one on top of the other are aligned with one another in one plane. If enough layers of lined up hollow profiles in the desired number or thickness of the storage block 3 have been placed on top of each other, the bundle can be secured with tapes, such as. B. Velcro straps, tied together and then covered with thermal insulation.
the memory block can be inserted into an adapted base 5, which has a receiving space adapted to the outer contour of the memory block 3.
an adapted cap made of heat-insulating material can be placed on the upper end section of the storage block 3, through which connecting cables can be guided.
the outer sides of the storage block 3 can be covered with heat-insulating material.
the illustrated structure of the heat storage unit 1 with at least one storage block 3 results in a compact, easy-to-handle design that can also be advantageously adapted to different spatial conditions.

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Engineering & Computer Science (AREA)
Physics & Mathematics (AREA)
Thermal Sciences (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Central Heating Systems (AREA)
Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

EP23160857.1A 2022-03-24 2023-03-09 Unité de stockage de chaleur Active EP4257909B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DE102022106951.6A DE102022106951A1 (de)	2022-03-24	2022-03-24	Wärmespeichereinheit

Publications (3)

Publication Number	Publication Date
EP4257909A1 true EP4257909A1 (fr)	2023-10-11
EP4257909C0 EP4257909C0 (fr)	2024-05-29
EP4257909B1 EP4257909B1 (fr)	2024-05-29

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EP23160857.1A Active EP4257909B1 (fr)	2022-03-24	2023-03-09	Unité de stockage de chaleur

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DE (1)	DE102022106951A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE102024109352A1 (de) *	2024-04-03	2025-10-09	MELT-Ing GmbH	Mit Phasenwechselmaterial gefülltes Element und Verfahren zur Herstellung
CN121477285A (zh) *	2025-12-15	2026-02-06	山东蓝孚高能物理技术股份有限公司	一种电子加速器束流标定水吸收靶装置

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