DE1921565A1 - Electric heating element for night storage heaters - Google Patents
Electric heating element for night storage heatersInfo
- Publication number
- DE1921565A1 DE1921565A1 DE19691921565 DE1921565A DE1921565A1 DE 1921565 A1 DE1921565 A1 DE 1921565A1 DE 19691921565 DE19691921565 DE 19691921565 DE 1921565 A DE1921565 A DE 1921565A DE 1921565 A1 DE1921565 A1 DE 1921565A1
- Authority
- DE
- Germany
- Prior art keywords
- heating element
- embedded
- heating
- electric heating
- ceramic
- 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.)
- Pending
Links
- 238000003860 storage Methods 0.000 title claims description 7
- 238000005485 electric heating Methods 0.000 title claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 27
- 239000000919 ceramic Substances 0.000 claims description 14
- 239000004020 conductor Substances 0.000 claims description 9
- 239000010425 asbestos Substances 0.000 claims description 5
- 229910052895 riebeckite Inorganic materials 0.000 claims description 5
- 239000011810 insulating material Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229940126214 compound 3 Drugs 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 235000014380 magnesium carbonate Nutrition 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000011232 storage material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/20—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater
- H05B3/22—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible
- H05B3/28—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material
- H05B3/283—Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater non-flexible heating conductor embedded in insulating material the insulating material being an inorganic material, e.g. ceramic
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Resistance Heating (AREA)
Description
Elektrische Heizelemente für Nachtstromspeicheröfen Die Erfindung betrifft ein elektrisches Heizelement, wie es insbesondere für Nachtstromspeicheröfen verwendet wird. Electric heating elements for night storage heaters The invention relates to an electrical heating element, such as is used in particular for night storage heaters is used.
s)ie Entwicklung auf diesem Gebiet geht heute dahin, derartige Speicheröfen möglichst schmal und flach zu gestalten. Derartige Bauformen erfordern entsprechende Heizelemente und man verwendete bisher meist Rohrheizkörper, die zwischen dem vorzugsweise aus Magnesit-Steinen bestehenden Speichermaterial eingelagert werden.s) he development in this area is now towards such storage stoves to make it as narrow and flat as possible. Such designs require appropriate Heating elements and one used so far mostly tubular heating elements, which are preferably between the Storage material consisting of magnesite stones can be stored.
Die in derartigen Speicheröfen auftretenden hohen Betriebstemperaturen, die ungefähr zwischen 600° C und 8000 C liegen, machen es jedoch erforderlich, die genannten Rohrheizkörper mit einem Chrom-Nickelstahlmantel auszurüsten, der diese Heizkörper crheblich verteuert.The high operating temperatures occurring in such storage stoves, which are approximately between 600 ° C and 8000 C, however, require the to equip the said tubular heating element with a chrome-nickel steel jacket that covers this Radiator significantly more expensive.
Es wurde auch schon vorgeschlagen, plattenförmige Heizelemente zu verwenden, die aus einem Keramikkörper bestehen, in dessen vorgef ormten Nuten eine IIeizleiterwendel mittels Tonerde oder einer anderen Schamottemasse derart eingebettet ist, e wenigstens einen dem Durchmesser der Wendel entsprechenden Abstand von der Oberfläche des Keramikkörpers aufweist. Diese Heizelemente sind bei geringen Verlustwerten ebenfalls für hohe Temperaturbereiche geeignet, j jedoch wesentlich billiger herzustellen. In vielen Fällen sind diese Helzelemente äedoch zu dick für die oben beschriebenen schmalen Speicheröfen.It has also been proposed to use plate-shaped heating elements use, which consist of a ceramic body, in its pre-formed grooves a Ieizleiterwendel embedded in this way by means of alumina or another firebrick mass is, e at least a distance corresponding to the diameter of the helix from the Has surface of the ceramic body. These heating elements are at low loss values also suitable for high temperature ranges, but j much cheaper to manufacture. In many cases, however, these helmet elements are too thick for the ones described above narrow storage stoves.
Es ist der Zweck dieser Erfindung, die vorgenannten IsTachteile zu beseitigen und ein flaches massearmes Eleizelement zu schaffen, das bei preiswerter Herstellung auch für hohe Teinperaturbereiche geeignet ist.It is the purpose of this invention to remedy the aforementioned disadvantages Eliminate and create a flat low-mass Eleizelement that at less expensive Production is also suitable for high temperature ranges.
Zu diesem Zweck wird erfindungsgemäß vorgeschlaen, den Heizleiter in einer keramischen, kalt abbindenden Hasse einzubetten, die zwischen zwei dünnen Platten aus warmfesten Isolierstoffen sandwichartig eingelagert ist. Als besonders vorteilhaft haben sich Isolierplatten aus Asbest erwiesen.For this purpose, the invention proposes the heating conductor embed in a ceramic, cold-setting hatch between two thin Panels made of heat-resistant insulating materials is sandwiched. As special Asbestos insulating panels have proven advantageous.
Dieses neuartige Heizelement bildet eine verhältnismäßig dünne, mechanisch jedoch sehr feste Heizplatte mit hoher thermischer Belastbarkeit. Das neuartige Heizelement weist eine sehr günstige Wärmeverteilung auf und ist sehr preisgünstig herzustellen, wobei dem Element durch entsprechende Ausbildung der Preßwerkzeuge beliebige Formen gegeben werden können, so daß es sehr vielseitig verwendbar ist. Besondere keramische Formteile sind hierzu in keinem Fall notwendig.This novel heating element forms a relatively thin, mechanically but very solid heating plate with high thermal load capacity. The novel The heating element has a very favorable heat distribution and is very inexpensive produce, the element by appropriate training of the pressing tools any shapes can be given, so that it is very versatile. Special ceramic moldings are not necessary in any case.
Der Gegenstand der Erfindung ist anhand der Zeichnung in einem Ausführungsbeispiel nachfolgend erläutert. Es zeigen Figur 1 einen Grundriss des Heizelements, Figur 2 einen Querschnitt in der Ebene II : II der Figur 1 und Figur 3 einen Ausschnitt aus der Figur 2 in größerem Maßstab.The subject matter of the invention is based on the drawing in an exemplary embodiment explained below. FIG. 1 shows a plan view of the heating element, FIG 2 shows a cross section in plane II: II of FIG. 1 and FIG. 3 shows a detail from Figure 2 on a larger scale.
Das beim vorliegenden Beispiel eine ebene Platte bildende HeizeleXment besteht aus einer Heizleiterwendel 1, zwei in Abstand parallel zueinander angeordneten Isolierplatten 2 aus Asbest und einer zwischen den Isolierplatten eingelagerten Reramikmasse 3, in der der Heizleiter 1 eingebettet ist. Der Heizleiter 1 ist in zwei Anschlußdrähten 4 und 5 aus der Platte herausgeführt.The heating element forming a flat plate in the present example consists of a heating conductor coil 1, two spaced parallel to each other Insulating plates 2 made of asbestos and one embedded between the insulating plates Ceramic compound 3 in which the heating conductor 1 is embedded. The heating conductor 1 is in two connecting wires 4 and 5 led out of the plate.
Bei der Herstellung des Heizelements wird das aus den beiden gewissermaßen als Schalung dienenden Isolierplatten 2, der kalt abbindenden Reramikmasse 3 und dem in diese Hasse eingebetteten Heizleiter 1 bestehende Werkstück unter hohem Druck verpresst, wobei der Heizleiter 1 mittels eines entsprechenden Werkzeugs in der vorgesehenen Lage gehalten wird. Das Kaltabbinden der Keramikmasse kann beispielsseise durch einen geringen Zusatz von Tonerdeschmelzzement erreicht werden.During the manufacture of the heating element, this becomes, so to speak, of the two serving as formwork insulating panels 2, the cold-setting ceramic compound 3 and the heating conductor 1, which is embedded in this hatch, is under high pressure pressed, wherein the heating conductor 1 by means of a corresponding tool in the intended location is held. The cold setting of the ceramic mass can be done for example can be achieved by adding a small amount of high-alumina cement.
Um eine einwandfrei sichere Verbindung der Isolierplatten mit der Keramikmasse zu erreichen, sind die Isolierplatten 2 mit einer Mehrzahl von kleinen Bohrungen 6 versehen, in welche die Keramikmasse beim Preßvorgang hineingepreßt wird.In order to ensure a perfectly secure connection between the insulating plates and the To achieve ceramic mass, the insulating plates 2 with a plurality of small Provided holes 6 into which the ceramic mass is pressed during the pressing process will.
Wie schon erwähnt, können dem Heizelement beliebige Umrißformen und auch beliebige Raumformen durch entsprechende Gestaltung der Preßwerkzeuge verliehen werden.As already mentioned, the heating element can have any shape and shape also given any spatial shapes by appropriate design of the pressing tools will.
Anstelle von Asbest können gegebenenfalls auch Asbestgewebe, Quarzmatten oder andere wärmebeständige flexible Isolierstoffe für die beiden Isolierplatten verwendet werden.Instead of asbestos, asbestos fabric, quartz mats can also be used or other heat-resistant flexible insulating materials for the two insulating plates be used.
kls wesentlicher Vorteil, der mit zu der hohen thermischen Belastbarkeit des Heizelements beiträgt, wäre noch zu erwähnen, daß wie die Erfahrung gezeigt hat, die beiden Isolierplatten auch die bei hohen Temperaturen fast unvermeidbar auftretenden Härterisse in der Keramikmasse unwirksam machen und ausgleichen, so daß das Heizelement auch für Temperaturbereiche bis 10000 C voll geeignet ist.This is one of the main advantages of the high thermal load capacity of the heating element, it should be mentioned that as experience has shown has, the two insulating plates are almost unavoidable even at high temperatures make hardening cracks in the ceramic mass ineffective and compensate, see above that the heating element is also fully suitable for temperature ranges up to 10000 C.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691921565 DE1921565A1 (en) | 1969-04-28 | 1969-04-28 | Electric heating element for night storage heaters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691921565 DE1921565A1 (en) | 1969-04-28 | 1969-04-28 | Electric heating element for night storage heaters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1921565A1 true DE1921565A1 (en) | 1970-10-29 |
Family
ID=5732619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19691921565 Pending DE1921565A1 (en) | 1969-04-28 | 1969-04-28 | Electric heating element for night storage heaters |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1921565A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0007021A1 (en) * | 1978-07-19 | 1980-01-23 | Siemens Aktiengesellschaft | Drive for rail-guided electric motor vehicle |
| DE3033649A1 (en) * | 1980-09-06 | 1982-04-15 | Fritz 3041 Neuenkirchen Heuer | Electrical room storage heater - has stone container for electric heating elements with storage capacity side walls |
| DE3731546A1 (en) * | 1987-09-19 | 1989-04-06 | Hurth Masch Zahnrad Carl | DRIVE UNIT FOR RAIL VEHICLES |
| DE4137234A1 (en) * | 1991-11-13 | 1993-05-19 | Abb Patent Gmbh | DRIVE UNIT FOR RAIL VEHICLES |
| DE4137233A1 (en) * | 1991-11-13 | 1993-05-19 | Abb Patent Gmbh | Hollow transmission shaft drive for electric rail vehicle - has brake disc at flanged end of motor-driven shaft surrounding hollow shaft of coupling clutch |
| KR100796259B1 (en) * | 2000-07-07 | 2008-01-21 | 보이트 터보 게엠베하 운트 콤파니 카게 | Drive device for driving at least one wheel drive shaft for railway vehicles |
-
1969
- 1969-04-28 DE DE19691921565 patent/DE1921565A1/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0007021A1 (en) * | 1978-07-19 | 1980-01-23 | Siemens Aktiengesellschaft | Drive for rail-guided electric motor vehicle |
| DE3033649A1 (en) * | 1980-09-06 | 1982-04-15 | Fritz 3041 Neuenkirchen Heuer | Electrical room storage heater - has stone container for electric heating elements with storage capacity side walls |
| DE3731546A1 (en) * | 1987-09-19 | 1989-04-06 | Hurth Masch Zahnrad Carl | DRIVE UNIT FOR RAIL VEHICLES |
| DE4137234A1 (en) * | 1991-11-13 | 1993-05-19 | Abb Patent Gmbh | DRIVE UNIT FOR RAIL VEHICLES |
| DE4137233A1 (en) * | 1991-11-13 | 1993-05-19 | Abb Patent Gmbh | Hollow transmission shaft drive for electric rail vehicle - has brake disc at flanged end of motor-driven shaft surrounding hollow shaft of coupling clutch |
| DE4137233C2 (en) * | 1991-11-13 | 2000-04-20 | Abb Patent Gmbh | Drive unit for rail locomotives |
| KR100796259B1 (en) * | 2000-07-07 | 2008-01-21 | 보이트 터보 게엠베하 운트 콤파니 카게 | Drive device for driving at least one wheel drive shaft for railway vehicles |
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