EP0077993B1 - Chaudière à accumulation - Google Patents

Chaudière à accumulation 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
Authority
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
Other languages
German (de)
English (en)
Other versions
EP0077993A1 (fr
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kueppersbusch AG, Kuppersbusch AG filed Critical Kueppersbusch AG
Priority to AT82109632T priority Critical patent/ATE23739T1/de
Publication of EP0077993A1 publication Critical patent/EP0077993A1/fr
Application granted granted Critical
Publication of EP0077993B1 publication Critical patent/EP0077993B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • 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.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)
  • Central Heating Systems (AREA)
  • Electric Stoves And Ranges (AREA)
  • Furnace Details (AREA)

Claims (5)

1. Four à accumulation de chaleur comportant un noyau d'accumulation (2) qui, à l'intérieur d'une enveloppe, est entouré par une couche d'isolation thermique (1) et au moins un élément de chauffage (6), placé dans un évidement (5) prévu dans le noyau d'accumulation (2) qui comporte une ouverture d'extrémité (7) qui est située du côté de la paroi antérieure (8) de l'enveloppe et ne s'étend que sur une partie de la hauteur du noyau d'accumulation (2), ainsi qu'un dispositif d'obturation de l'évidement (5), caractérisé en ce que l'ouverture d'extrémité (7) se trouve à la partie inférieure du noyau d'accumulation (2), en ce que l'élément de chauffage (6), comme l'évidement (5), a une forme allongée et tourne d'à peu près 90° dans le sens de sa longueur en formant un arc partant de l'ouverture d'extrémité (7) et s'incurvant vers le haut, en ce que l'élément de chauffage (6) comporte une extrémité formant raccord (9) qui est adaptée à l'ouverture d'extrémité (7) ménagée dans le noyau d'accumulation (2) et s'engage dans l'ouverture d'extrémité (7), en ce que la couche d'isolation thermique (1) doit être ouverte dans la zone de l'ouverture d'extrémité (7) pour le passage de l'élément de chauffage (6) et en ce que la paroi (8) est amovible.
2. Four à accumulation de chaleur selon la revendication 1, caractérisé en ce que la couche d'isolation thermique (1) est subdivisée au niveau de la paroi latérale antérieure (8) et en ce que la partie de la couche isolante (11) qui correspond à l'ouverture d'extrémité (7) est amovible séparément.
3. Four à accumulation de chaleur selon la revendication 1, caractérisé en ce que la couche d'isolation thermique (1) est en matériau déformable et peut être séparée dans la zone de l'ouverture d'extrémité (7) de l'évidement (5).
4. Four à accumulation de chaleur selon l'une des revendications 1 à 3, caractérisé en ce que l'élément de chauffage (6) est rigide par lui-même.
5. Four à accumulation de chaleur selon au moins l'une des revendications 1 à 3, caractérisé en ce qu'il comporte, montée sur un support de spirale de filament constitué par des organes susceptibles d'être déplacés d'une manière limitée les uns par rapport aux autres, une spirale de filament.
EP82109632A 1981-10-22 1982-10-19 Chaudière à accumulation Expired EP0077993B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82109632T ATE23739T1 (de) 1981-10-22 1982-10-19 Waermespeicherofen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813141863 DE3141863A1 (de) 1981-10-22 1981-10-22 Waermespeicherofen
DE3141863 1981-10-22

Publications (2)

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

Family

ID=6144599

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82109632A Expired EP0077993B1 (fr) 1981-10-22 1982-10-19 Chaudière à accumulation

Country Status (3)

Country Link
EP (1) EP0077993B1 (fr)
AT (1) ATE23739T1 (fr)
DE (1) DE3141863A1 (fr)

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 (de) 1958-06-03 1958-09-11 Muckenfuss Soehne Malag Elektrischer speicherofen.
DE6930216U (de) 1969-10-01 1969-12-18 Axel G Rohde Elektroheizeinsatz fuer kohlekacheloefen
DE1535956A1 (de) 1966-03-07 1970-08-06 Christ Lud Wagner Strickwarenf Vorrichtung zum Schlagen von zweireihigen Jacquard-Karten

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH137379A (de) * 1929-01-17 1929-12-31 Therma Ag Vorrichtung zum Speichern und Ausnützen elektrisch erzeugter Wärme.
US2380545A (en) * 1943-02-23 1945-07-31 Westinghouse Electric Corp Water heating apparatus
DE1690656B1 (de) * 1967-03-13 1971-11-04 Heinrich Roos Elektrischer waermespeicherofen mit leicht auswechselbarer heizeinheit
GB1253025A (fr) * 1967-09-07 1971-11-10
CH635187A5 (fr) * 1980-04-15 1983-03-15 Battelle Memorial Institute Appareil de chauffage.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1773822U (de) 1958-06-03 1958-09-11 Muckenfuss Soehne Malag Elektrischer speicherofen.
DE1535956A1 (de) 1966-03-07 1970-08-06 Christ Lud Wagner Strickwarenf Vorrichtung zum Schlagen von zweireihigen Jacquard-Karten
DE6930216U (de) 1969-10-01 1969-12-18 Axel G Rohde Elektroheizeinsatz fuer kohlekacheloefen

Also Published As

Publication number Publication date
ATE23739T1 (de) 1986-12-15
EP0077993A1 (fr) 1983-05-04
DE3141863A1 (de) 1983-05-05

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