EP0077993B1 - Storage heater - Google Patents

Storage heater Download PDF

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Publication number
EP0077993B1
EP0077993B1 EP82109632A EP82109632A EP0077993B1 EP 0077993 B1 EP0077993 B1 EP 0077993B1 EP 82109632 A EP82109632 A EP 82109632A EP 82109632 A EP82109632 A EP 82109632A EP 0077993 B1 EP0077993 B1 EP 0077993B1
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EP
European Patent Office
Prior art keywords
end opening
heating element
recess
storage core
insulating layer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP82109632A
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German (de)
French (fr)
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EP0077993A1 (en
Inventor
Aloys Ing.-Grad. Feldmann
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.)
Kueppersbusch AG
Kuppersbusch AG
Original Assignee
Kueppersbusch AG
Kuppersbusch AG
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Publication date
Application filed by Kueppersbusch AG, Kuppersbusch AG filed Critical Kueppersbusch AG
Priority to AT82109632T priority Critical patent/ATE23739T1/en
Publication of EP0077993A1 publication Critical patent/EP0077993A1/en
Application granted granted Critical
Publication of EP0077993B1 publication Critical patent/EP0077993B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1854—Arrangement or mounting of grates or heating means for air heaters
    • F24H9/1863—Arrangement or mounting of electric heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H7/00—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release
    • F24H7/002—Storage heaters, i.e. heaters in which the energy is stored as heat in masses for subsequent release using electrical energy supply

Definitions

  • the invention relates to a heat storage furnace with a storage core, which is surrounded within a housing by a heat insulation layer, with at least one heating element in a recess provided in the storage nuclei, which has an end opening which points to the front wall of the housing and only a fraction of the height of the Has memory core, as well as with a closure for the recess.
  • a storage core which has a discharge-air duct which runs from top to bottom and which is surrounded by a heat-insulating layer of sand within a cylindrical housing designed as a sieve is.
  • Elongated heating elements are located in the storage core, one above the other, at a distance, which lie in parallel and horizontal recesses. These recesses are closed at one end within the memory core and each have an end opening at the other end, which is directed towards the front wall of the housing and measures only a fraction of the height of the memory core.
  • a pipe lying in the axial extension of the recess is inserted tightly, which is guided through the thermal insulation layer and the front wall of the housing and is also firmly connected to the latter.
  • the heating element is inserted through the tube into the recess of the storage core, the tube is filled with a poorly heat-conducting material and sealed on the outside with a cover, so that a closure is formed for the recessing of the heating element.
  • a disadvantage of such a construction is that the storage core and thus the entire heat storage furnace must consequently be made very deep due to the horizontally arranged heating elements to be inserted from the front wall, so that a flat design is not possible.
  • a special pipe with an insulating filling and a cover is required to secure the associated heating element to the outside.
  • the invention has for its object to take measures in a heat storage furnace of the type mentioned, through which the heating element arranged therein can be exchanged from the front with a heat insulating layer remaining largely on the storage core and with a recess arranged essentially vertically in the storage core, and a simple closure of the end opening the recess is reached.
  • the end opening is provided in the lower region of the storage core, that the heating element, like the recess, is elongated and is directed upwards in an arc in the longitudinal direction by approximately 90 ° from the end opening, that the heating element has a connection end which is adapted to the end opening in the storage core and inserted into the end opening, that the heat insulation layer in the region of the end opening is to be opened for the passage of the heating element, and that the wall can be removed.
  • a heat storage furnace In one embodiment of a heat storage furnace according to the invention, only the part of the heat insulation layer which is assigned to the forward opening opening needs to be removable for the replacement of the heating element which is arranged vertically in the storage core, or a slot may already be sufficient for the deformable material of the heat insulation layer, through which the heating element is passed with the connection end adapted to the end opening and then compressed again.
  • the replacement of a heating element can be carried out without any problems even with a hot storage core, since the heat insulation layer is only removed in the area of the connection piece, but is otherwise retained.
  • heat radiation therefore only occurs from a small part of the surface of the memory core.
  • the end opening of the cutout is closed during operation by the connection end connected to the heating element, so that heat radiation does not strike the heat insulation layer directly from the heating element and heated air guided through the cutout is also prevented from freely escaping.
  • the replacement of a heating element is only possible when the front wall of the housing has been removed and the storage core need only have a correspondingly small depth due to the vertical arrangement of the elongated heating element.
  • a heat insulation layer 1 surrounds a storage core made of heat-storing material.
  • the storage core 2 sits on a floor insulating brick 3 and is crossed by an inverted U-shaped discharge air duct 4.
  • In the memory core 2 there is also an essentially vertical recess 5 which is adapted to the shape of a heating element 6 inserted therein.
  • the electrical heating element 6, like the recess 5, is elongated and bent in the longitudinal direction by approximately 90 °, so that there is an essentially perpendicular arrangement in the longitudinal direction.
  • the bottom end opening 7 of the recess 5 faces the wall 8, which is at the front during operation and is directed into the space to be heated of a housing that crosses the outside of the thermal insulation layer.
  • the adapted connection end 9 of the heating element 6, which closes the end opening 7, is inserted into the end opening 7.
  • the heat insulation layer arranged on the front side wall 8 of an outer housing is divided at an inclined separation joint 10 in such a way that an independently manageable insulation layer part 11 is formed in the region of the end opening 7 or the connection end 9. This lower insulating layer part 11 can be removed independently of the remaining heat insulating layer 1, so that the storage core 2 can be exposed in the limited area of the end opening 7.
  • the heating element 6 can be pulled out of the recess 5 due to its arcuate design, only the lower section of the storage core 2 being exposed.
  • the insulating part 11 can of course also be limited to the immediate area of the end opening 7 if the heat radiation from the charged storage core 2 should otherwise be too great in the event of a repair.
  • a deformable heat insulation layer for example made of stone wool or glass wool, to slit the heat insulation layer in the region of the end opening 7, so that the slots can be opened in the event of a repair and the heating element 6 can be replaced.
  • the slitting can also only be carried out in the event of a repair.
  • the heating element 6 preferably consists of tubular heating elements which are bent essentially in the shape of a hairpin and are additionally bent in the longitudinal direction of their legs by a total of about 90 ° in a crescent shape.
  • it can also consist of a rigid ceramic support with an integrally formed connecting end 9 and a heating wire. As a result, it can be inserted from the vertical front wall 8 into the recess 5 which is directed vertically upwards.
  • the heating element 6 can thus be exchanged from the front without difficulty even when the heat storage furnace is set in a niche, the exposed radiation part of the storage core 2 being able to be reduced to a minimum by the insulating part 11. This is possible because the end opening 7 only has a height that is a fraction of the radiator length.
  • the heating element can also be constructed from individual ceramic members which can be adjusted to a limited extent, on which a heating coil is wound and which form a rod-shaped arrangement which can be bent in the axial direction.
  • the heating element designed in this way can be pushed upwards under axial deflection through the insertion opening.
  • connection end 9 and the end opening 7, which is very small in height, has the significant advantage that heat radiation from the heating element 6 does not reach the heat insulating layer 1 or to a sheet metal closing the end opening, but is absorbed inside the storage core 2.
  • the same also applies to the air conducted through the storage core 2.
  • the air duct can be routed separately from the heating element as a separate air path.

Abstract

1. Thermal storage heater with a storage core (2), which is surrounded by a thermally insulating layer (1) within a housing, with at least one heating element (6) in a recess (5), which is provided in the storage core (2) and displays an end opening (7), which faces towards the front wall (8) of the housing and displays merely a fraction of the height of the storage core (2), as well as with a closure (5) for the recess, characterised thereby, that the end opening (7) is provided in the lower region of the storage core (2), that the heating element (6) just as the recess (5) is elongate and in longitudinal direction is directed upwardly in an arc through about 90 from the end opening (7), that the heating element (6) displays a terminal end (9), which is matched to the end opening (7) in the storage core (2) and inserted into the end opening (7), that the thermally insulating layer (1) is openable for the passage of the heating element (6) in the region of the end opening (7) and that the wall (8) is removable.

Description

Die Erfindung betrifft einen Wärmespeicherofen mit einem Speicherkern, der innerhalb eines Gehäuses von einer Wärmeisolierschicht umgeben ist, mit mindestens einem Heizelement in einer im Speicherkeim vorgesehenen Aussparung, die eine Endöffnung aufweist, welche zur vorn liegenden Wand des Gehäuses hinweist und lediglich einen Bruchteil der Höhe des Speicherkerns aufweist, sowie mit einem Verschluss für die Aussparung.The invention relates to a heat storage furnace with a storage core, which is surrounded within a housing by a heat insulation layer, with at least one heating element in a recess provided in the storage nuclei, which has an end opening which points to the front wall of the housing and only a fraction of the height of the Has memory core, as well as with a closure for the recess.

Bei einem bekannten Wärmespeicherofen dieser Art, wie er aus der CH-A-137 379 hervorgeht, ist ein Speicherkern vorgesehen, der einen von oben nach unten verlaufenden Entlade-Luftkanal aufweist und der innerhalb eines als Sieb ausgebildeten zylindrischen Gehäuses von einer Wärmeisolierschicht aus Sand umgeben ist. Im Speicherkern befinden sind übereinander mit Abstand angeordnete langgestreckte Heizelemente, die in parallel zueinander und waagerecht verlaufenden Aussparungen liegen. Diese Aussparungen sind einendig innerhalb des Speicherkerns abgeschlossen und weisen am anderen Ende je eine Endöffnung auf, die zur vorn liegenden Wand des Gehäuses gerichtet ist sowie lediglich einen Bruchteil der Höhe des Speicherkerns misst. In die Endöffnung ist ein in der axialen Verlängerung der Aussparung liegendes Rohr dicht eingesetzt, das durch die Wärmeisolierschicht und die vordere Wand des Gehäuses geführt und mit letzterer ebenfalls fest verbunden ist. Bei durch das Rohr in die Aussparung des Speicherkerns eingesetztem Heizelement wird das Rohr mit einem schlecht wärmeleitenden Material gefüllt und aussen mit einem Deckel abgedichtet, so dass ein Verschluss für die Ausparung des Heizelementes gebildet ist. Von Nachteil ist bei einem derartigen Aufbau, dass durch die waagerecht angeordneten und von der vorn liegenden Wand aus einzuschiebenden Heizelemente folglich der Speicherkern und damit der gesamte Wärmespeicherofen sehr tief ausgebildet werden muss, eine flache Bauweise also nicht möglich ist. Zudem ist ein besonderes Rohr mit einer wärmedämmenden Füllung und einem Deckel erforderlich, um das jeweils zugeordnete Heizelement nach aussen abzusichern.In a known heat storage furnace of this type, as can be seen from CH-A-137 379, a storage core is provided which has a discharge-air duct which runs from top to bottom and which is surrounded by a heat-insulating layer of sand within a cylindrical housing designed as a sieve is. Elongated heating elements are located in the storage core, one above the other, at a distance, which lie in parallel and horizontal recesses. These recesses are closed at one end within the memory core and each have an end opening at the other end, which is directed towards the front wall of the housing and measures only a fraction of the height of the memory core. In the end opening, a pipe lying in the axial extension of the recess is inserted tightly, which is guided through the thermal insulation layer and the front wall of the housing and is also firmly connected to the latter. When the heating element is inserted through the tube into the recess of the storage core, the tube is filled with a poorly heat-conducting material and sealed on the outside with a cover, so that a closure is formed for the recessing of the heating element. A disadvantage of such a construction is that the storage core and thus the entire heat storage furnace must consequently be made very deep due to the horizontally arranged heating elements to be inserted from the front wall, so that a flat design is not possible. In addition, a special pipe with an insulating filling and a cover is required to secure the associated heating element to the outside.

Der Erfindung liegt die Aufgabe zugrunde, bei einem Wärmespeicherofen der eingangs erwähnten Art Massnahmen zu treffen, durch die bei weitgehend am Speicherkern verbleibender Wärmeisolierschicht und bei im wesentlichen senkrecht im Speicherkern angeordneter Aussparung das darin angeordnete Heizelement von vorn ausgetauscht werden kann und ein einfacher Verschluss der Endöffnung der Aussparung erreicht wird.The invention has for its object to take measures in a heat storage furnace of the type mentioned, through which the heating element arranged therein can be exchanged from the front with a heat insulating layer remaining largely on the storage core and with a recess arranged essentially vertically in the storage core, and a simple closure of the end opening the recess is reached.

Die Lösung dieser Aufgabe erfolgt gemäss der Erfindung dadurch, dass die Endöffnung im unteren Bereich des Speicherkerns vorgesehen ist, dass das Heizelement wie die Aussparung langgestreckt und in Längsrichtung um etwa 90° von der Endöffnung aus in einem Bogen nach oben gerichtet ist, dass das Heizelement ein Anschlussende aufweist, das der Endöffnung im Speicherkern angepasst und in die Endöffnung eingesetzt ist, dass die Wärmeisolierschicht im Bereich der Endöffnung für den Durchtritt des Heizelementes zu öffnen ist, und dass die Wand abnehmbar ist.This object is achieved according to the invention in that the end opening is provided in the lower region of the storage core, that the heating element, like the recess, is elongated and is directed upwards in an arc in the longitudinal direction by approximately 90 ° from the end opening, that the heating element has a connection end which is adapted to the end opening in the storage core and inserted into the end opening, that the heat insulation layer in the region of the end opening is to be opened for the passage of the heating element, and that the wall can be removed.

Bei einer Ausgestaltung eines Wärmespeicherofens gemäss der Erfindung braucht für den Austausch des senkrecht im Speicherkern stehend angeordneten Heizelementes lediglich der Teil der Wärmeisolierschicht entfernbar zu sein, welcher der nach vorn gerichteten Endöffnung zugeordnet ist, bzw. kann bei verformbarem Material der Wärmeisolierschicht bereits ein Schlitz genügen, durch den das Heizelement mit dem der Endöffnung angepassten Anschlussende hindurchgeführt und anschliessend wieder zusammengedrückt wird. Dadurch ist das Auswechseln eines Heizelementes selbst bei heissem Speicherkern problemlos ausführbar, da die Wärmeisolierschicht nur im Bereich des Anschlussstückes entfernt wird, im übrigen aber erhalten bleibt.In one embodiment of a heat storage furnace according to the invention, only the part of the heat insulation layer which is assigned to the forward opening opening needs to be removable for the replacement of the heating element which is arranged vertically in the storage core, or a slot may already be sufficient for the deformable material of the heat insulation layer, through which the heating element is passed with the connection end adapted to the end opening and then compressed again. As a result, the replacement of a heating element can be carried out without any problems even with a hot storage core, since the heat insulation layer is only removed in the area of the connection piece, but is otherwise retained.

Eine Wärmeabstrahlung tritt daher im Reparaturfall nur von einem geringen Teil der Oberfläche des Speicherkerns auf. Dabei ist die Endöffnung der Aussparung im Betrieb durch das mit dem Heizelement verbundene Anschlussende verschlossen, so dass Wärmestrahlung nicht direkt vom Heizelement auf die Wärmeisolierschicht auftrifft und auch durch die Aussparung geführte erhitzte Luft am freien Austritt gehindert ist. Ausserdem ist der Austausch eines Heizelementes erst möglich, wenn die vorn liegende Wand des Gehäuses abgenommen ist und der Speicherkern braucht aufgrund der senkrechten Anordnung des langgestreckten Heizelementes nur eine entsprechend geringe Tiefe aufzuweisen.In the event of repair, heat radiation therefore only occurs from a small part of the surface of the memory core. The end opening of the cutout is closed during operation by the connection end connected to the heating element, so that heat radiation does not strike the heat insulation layer directly from the heating element and heated air guided through the cutout is also prevented from freely escaping. In addition, the replacement of a heating element is only possible when the front wall of the housing has been removed and the storage core need only have a correspondingly small depth due to the vertical arrangement of the elongated heating element.

Vorteilhafte Ausgestaltungen der Erfindung sind in den weiteren Ansprüchen angegeben.Advantageous embodiments of the invention are specified in the further claims.

Die Erfindung ist nachfolgend anhand der Zeichnungen eines Ausführungsbeispiels näher erläutert.The invention is explained in more detail below with reference to the drawings of an exemplary embodiment.

Es zeigen:

  • Fig. 1 eine schematische Schnittdarstellung eines Wärmespeicherofens mit eingesetztem Heizelement,
  • Fig. 2 eine Konturendarstellung des Heizelementes und
  • Fig. 3 den Wärmespeicherofen bei herausgenommenem Heizelement.
Show it:
  • 1 is a schematic sectional view of a heat storage furnace with an inserted heating element,
  • Fig. 2 is a contour representation of the heating element and
  • Fig. 3 shows the heat storage furnace with the heating element removed.

Eine Wärmeisolierschicht 1 umgibt einen Speicherkern aus wärmespeicherndem Material. Der Speicherkern 2 sitzt auf einem Bodenisolierstein 3 auf und ist von einem umgekehrt U-förmigen Entladeluftkanal 4 durchzogen. Im Speicherkern 2 befindet sich auch eine im wesentlichen senkrecht verlaufende Aussparung 5, die der Form eines darin eingesetzten Heizelementes 6 angepasst ist. Das elektrische Heizelement 6 ist wie die Aussparung 5 langgestreckt ausgebildet und in Längsrichtung um etwa 90° gebogen, so dass sich eine im wesentlichen in Längsrichtung senkrecht verlaufende Anordnung ergibt.A heat insulation layer 1 surrounds a storage core made of heat-storing material. The storage core 2 sits on a floor insulating brick 3 and is crossed by an inverted U-shaped discharge air duct 4. In the memory core 2 there is also an essentially vertical recess 5 which is adapted to the shape of a heating element 6 inserted therein. The electrical heating element 6, like the recess 5, is elongated and bent in the longitudinal direction by approximately 90 °, so that there is an essentially perpendicular arrangement in the longitudinal direction.

Die untenliegende Endöffnung 7 der Aussparung 5 weist zu der im Betrieb vorn liegenden, in den zu beheizenden Raum gerichteten Wand 8 eines die Wärmeisolierschicht aussen übergreifenden Gehäuses hin. In die Endöffnung 7 ist das angepasste Anschlussende 9 des Heizelementes 6 eingefügt, das die Endöffnung 7 verschliesst. Die an der vorderen Seitenwand 8 eines äusseren Gehäuses angeordnete Wärmeisolierschicht ist an einer schräg verlaufenden Trennfuge 10 so geteilt, dass im Bereich der Endöffnung 7 bzw. des Anschlussendes 9 ein selbständig handhabbarer Isolierschichtteil 11 gebildet ist. Dieser untere Isolierschichtteil 11 kann unabhängig von der übrigen Wärmeisolierschicht 1 entfernt werden, so dass der Speicherkern 2 im begrenzten Bereich der Endöffnung 7 freigelegt werden kann. Dadurch kann das Heizelement 6 aufgrund seiner bogenförmigen Gestaltung aus der Aussparung 5 herausgezogen werden, wobei dann lediglich der untere Abschnitt des Speicherkerns 2 freigelegt ist. Dabei kann der Isolierteil 11 selbstverständlich auch auf den unmittelbaren Bereich der Endöffnung 7 beschränkt werden, wenn andernfalls die Wärmeabstrahlung des aufgeladenen Speicherkerns 2 im Reparaturfalle zu gross sein sollte. Es ist dabei jedoch auch möglich, bei Anwendung einer verformbaren Wärmeisolierschicht z.B. aus Steinwolle oder Glaswolle, im Bereich der Endöffnung 7 die Wärmeisolierschicht zu schlitzen, so dass die Schlitze im Reparaturfalle geöffnet und das Heizelement 6 ausgetauscht werden kann. Dabei kann das Schlitzen auch erst im Reparaturfall vorgenommen werden. Das Heizelement 6 besteht vorzugsweise aus Rohrheizkörpern, die im wesentlichen haarnadelförmig gebogen sind und zusätzlich in Längsrichtung ihrer Schenkel insgesamt um etwa 90° sichelförmig gebogen sind. Es kann jedoch auch aus einem in sich starren keramischen Träger mit angeformtem Anschlussende 9 und einem Heizdraht bestehen. Dadurch kann es von der senkrechten vorderen Wand 8 aus ein die senkrecht nach oben gerichtete Aussparung 5 eingesetzt werden.The bottom end opening 7 of the recess 5 faces the wall 8, which is at the front during operation and is directed into the space to be heated of a housing that crosses the outside of the thermal insulation layer. The adapted connection end 9 of the heating element 6, which closes the end opening 7, is inserted into the end opening 7. The heat insulation layer arranged on the front side wall 8 of an outer housing is divided at an inclined separation joint 10 in such a way that an independently manageable insulation layer part 11 is formed in the region of the end opening 7 or the connection end 9. This lower insulating layer part 11 can be removed independently of the remaining heat insulating layer 1, so that the storage core 2 can be exposed in the limited area of the end opening 7. As a result, the heating element 6 can be pulled out of the recess 5 due to its arcuate design, only the lower section of the storage core 2 being exposed. The insulating part 11 can of course also be limited to the immediate area of the end opening 7 if the heat radiation from the charged storage core 2 should otherwise be too great in the event of a repair. However, it is also possible, when using a deformable heat insulation layer, for example made of stone wool or glass wool, to slit the heat insulation layer in the region of the end opening 7, so that the slots can be opened in the event of a repair and the heating element 6 can be replaced. The slitting can also only be carried out in the event of a repair. The heating element 6 preferably consists of tubular heating elements which are bent essentially in the shape of a hairpin and are additionally bent in the longitudinal direction of their legs by a total of about 90 ° in a crescent shape. However, it can also consist of a rigid ceramic support with an integrally formed connecting end 9 and a heating wire. As a result, it can be inserted from the vertical front wall 8 into the recess 5 which is directed vertically upwards.

Durch die Anordnung der Endöffnung 7 und des Isolierteils 11 kann somit selbst bei in eine Nische eingestelltem Wärmespeicher- ofen das Heizelement 6 ohne Schwierigkeiten von vorn ausgetauscht werden, wobei durch das Isolierteil 11 der freigelegte Strahlungsteil des Speicherkerns 2 auf ein Minimum reduziert werden kann. Das ist möglich, weil die Endöffnung 7 nur eine Höhe aufweist, die einen Bruchteil der Heizkörperlänge beträgt.Due to the arrangement of the end opening 7 and the insulating part 11, the heating element 6 can thus be exchanged from the front without difficulty even when the heat storage furnace is set in a niche, the exposed radiation part of the storage core 2 being able to be reduced to a minimum by the insulating part 11. This is possible because the end opening 7 only has a height that is a fraction of the radiator length.

Anstelle einer in sich starren Anordnung kann das Heizelement auch aus einzelnen begrenzt gegeneinander verstellbaren keramischen Gliedern aufgebaut sein, auf welche eine Heizwendel aufgewickelt ist und die eine stabförmige, in Achsrichtung biegbare Anordnung bilden. Das so ausgeführte Heizelement kann unter axialer Durchbiegung durch die Einstecköffnung nach oben geschoben werden.Instead of an inherently rigid arrangement, the heating element can also be constructed from individual ceramic members which can be adjusted to a limited extent, on which a heating coil is wound and which form a rod-shaped arrangement which can be bent in the axial direction. The heating element designed in this way can be pushed upwards under axial deflection through the insertion opening.

Im übrigen hat das Anschlussende 9 und die von der Höhe her sehr klein haltbare Endöffnung 7 den wesentlichen Vorteil, dass Wärmestrahlung vom Heizelement 6 nicht bis zur Wärmeisolierschicht 1 oder bis zu einem die Endöffnung verschliessenden Blech gelangt, sondern im Inneren des Speicherkerns 2 absorbiert wird. Das gleiche trifft auch für die durch den Speicherkern 2 geleitete Luft zu. Dabei kann der Luftkanal als separater Luftweg getrennt vom Heizelement geführt werden.Otherwise, the connection end 9 and the end opening 7, which is very small in height, has the significant advantage that heat radiation from the heating element 6 does not reach the heat insulating layer 1 or to a sheet metal closing the end opening, but is absorbed inside the storage core 2. The same also applies to the air conducted through the storage core 2. The air duct can be routed separately from the heating element as a separate air path.

Claims (5)

1. Thermal storage heater with a storage core (2), which is surrounded by a thermally insulating layer (1) within a housing, with at least one heating element (6) in a recess (5), which is provided in the storage core (2) and displays an end opening (7), which faces towards the front wall (8) of the housing and displays merely a fraction of the height of the storage core (2), as well as with a closure (5) for the recess, characterised thereby, that the end opening (7) is provided in the lower region of the storage core (2), that the heating element (6) just as the recess (5) is elongate and in longitudinal direction is directed upwardly in an arc through about 90° from the end opening (7), that the heating element (6) displays a terminal end (9), which is matched to the end opening (7) in the storage core (2) and inserted into the end opening (7), that the thermally insulating layer (1) is openable for the passage of the heating element (6) in the region of the end opening (7) and that the wall (8) is removable.
2. Thermal storage heater according to claim 1, characterised thereby, that the thermally insulating layer (1) is divided at the front side wall (8) and that the insulating layer part (11), which is associated with the end opening (7), is removable on its own.
3. Thermal storage heater according to claim 1, characterised thereby, that the thermally insulating layer (1) consists of deformable material and is severable in the region of the end opening (7) of the recess (5).
4. Thermal storage heater according to claim 1 or one of the following, characterised thereby, that the heating element (6) in itself is rigid.
5. Thermal storage heater according to at least one of the claims 1 to 3, characterised thereby, that a heating coil is mounted on a heating coil carrier built up of individual members which are within limits displaceable one relative to the other.
EP82109632A 1981-10-22 1982-10-19 Storage heater Expired EP0077993B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82109632T ATE23739T1 (en) 1981-10-22 1982-10-19 HEAT STORAGE STOVE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3141863 1981-10-22
DE19813141863 DE3141863A1 (en) 1981-10-22 1981-10-22 HEAT STORAGE STOVE

Publications (2)

Publication Number Publication Date
EP0077993A1 EP0077993A1 (en) 1983-05-04
EP0077993B1 true EP0077993B1 (en) 1986-11-20

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AT (1) ATE23739T1 (en)
DE (1) DE3141863A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5042081A (en) * 1987-11-24 1991-08-20 Steffes Manufacturing, Inc. Electrical thermal storage heating unit with easily replaced heating

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1773822U (en) 1958-06-03 1958-09-11 Muckenfuss Soehne Malag ELECTRIC STORAGE OVEN.
DE6930216U (en) 1969-10-01 1969-12-18 Axel G Rohde ELECTRIC HEATING INSERT FOR COAL TILED STOVES
DE1535956A1 (en) 1966-03-07 1970-08-06 Christ Lud Wagner Strickwarenf Device for beating double-row jacquard cards

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH137379A (en) * 1929-01-17 1929-12-31 Therma Ag Device for storing and using electrically generated heat.
US2380545A (en) * 1943-02-23 1945-07-31 Westinghouse Electric Corp Water heating apparatus
DE1690656B1 (en) * 1967-03-13 1971-11-04 Heinrich Roos ELECTRIC HEAT STOVE WITH EASILY REPLACEABLE HEATING UNIT
GB1253025A (en) * 1967-09-07 1971-11-10
CH635187A5 (en) * 1980-04-15 1983-03-15 Battelle Memorial Institute HEATING APPLIANCE.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1773822U (en) 1958-06-03 1958-09-11 Muckenfuss Soehne Malag ELECTRIC STORAGE OVEN.
DE1535956A1 (en) 1966-03-07 1970-08-06 Christ Lud Wagner Strickwarenf Device for beating double-row jacquard cards
DE6930216U (en) 1969-10-01 1969-12-18 Axel G Rohde ELECTRIC HEATING INSERT FOR COAL TILED STOVES

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EP0077993A1 (en) 1983-05-04
DE3141863A1 (en) 1983-05-05
ATE23739T1 (en) 1986-12-15

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