DE467345C - Electric heating device for heating liquid masses - Google Patents

Electric heating device for heating liquid masses

Info

Publication number
DE467345C
DE467345C DET29668D DET0029668D DE467345C DE 467345 C DE467345 C DE 467345C DE T29668 D DET29668 D DE T29668D DE T0029668 D DET0029668 D DE T0029668D DE 467345 C DE467345 C DE 467345C
Authority
DE
Germany
Prior art keywords
protective sleeve
cartridge
heating
liquid masses
heating device
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
DET29668D
Other languages
German (de)
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
Publication date
Priority to DET29668D priority Critical patent/DE467345C/en
Application granted granted Critical
Publication of DE467345C publication Critical patent/DE467345C/en
Expired legal-status Critical Current

Links

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
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/101—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply
    • F24H1/102—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply with resistance

Landscapes

  • 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)
  • Resistance Heating (AREA)

Description

Elektrische Heizvorrichtung zur Erwärmung flüssiger massen Die Erfindung bezieht sich auf elektrische Heizvorrichtungen in Gestalt feuerfester Patronen mit in Bohrungen isoliert eingelegten Heizdrähten, die zur Erwärmung flüssiger Massen dienen. Ein Nachteil dieser bekannten Vorrichtungen besteht darin, daß große Wärmeverluste durch den mangelnden Wärmeübergang von der Patrone zu ihrer Schutzhülse entstehen. Man hat daher die Heizelemente schon in die Schutzhülse eingegossen, wobei #aber die Schutzhülse einen größeren Dehnungskoeffizienten hatte als die Eingußmasse.Electric heating device for heating liquid masses The invention refers to electrical heating devices in the form of refractory cartridges with Insulated heating wires inserted in bores, which are used to heat liquid masses to serve. A disadvantage of these known devices is that large heat losses caused by the lack of heat transfer from the cartridge to its protective sleeve. The heating elements have therefore already been poured into the protective sleeve, with #aber the protective sleeve had a greater coefficient of expansion than the casting compound.

Die Erfindung besteht nun darin, daß die in kaltem Zustande genau in die Schutzhülse einschiebbare Patrone aus einem Stoff besteht, der einen größeren Ausdehnungskoeffizienten besitzt als die ihn umgebende Schutzhülse, so daß die Patrone bei der Erwärmung durch die Heizdrähte sich dauernd gegen die Schutzhülse preßt. Dies hat den Vorteil, daß die Patrone in kaltem Zustand in die Schutzhülse leicht eingesetzt und wieder herausgenommen werden kann, was beim Ausgießen unmöglich ist. Außerdem aber wird ein vollkommener Wärmeübergang von der Patrone zur Schutzhülse erzielt.The invention now consists in the fact that the cold state exactly The cartridge that can be pushed into the protective sleeve is made of a material that has a larger size Has expansion coefficient than the protective sleeve surrounding it, so that the cartridge when heated by the heating wires is constantly pressed against the protective sleeve. This has the advantage that the cartridge can easily be inserted into the protective sleeve when cold can be inserted and removed again, which is impossible when pouring. In addition, however, there is complete heat transfer from the cartridge to the protective sleeve achieved.

Die Erfindung ist in der Zeichnung dargestellt, und zwar zeigt Abb. i einen Längsschnitt, Abb. 2 einen Querschnitt, Abb. 3 eine Außenansicht. Die Heizvorrichtung besteht aus einer Patrone i, in deren Bohrungen die Heizspiralen 2 isoliert eingelegt sind. Die Heizdrähte 2 sind mit den Zuleitungen 3 durch auf dem Verschlußdeckel 5 sitzende Klemmen 4 verbunden. Die Patrone i wird in kaltem Zustand genau passend in die Schutzhülse 6 eingeschoben. Sie besteht erfindungsgemäß aus einem Stoff, der einen größeren Ausdehnungskoeffizienten besitzt als die umgebende Schutzhülse 6. Bei der Erwärmung durch die Heizdrähte 2 preßt die sich stärker dehnende Patrone i daher satt gegen die Schutzhülse 6, wobei die etwa zwischen den beiden Flächen befindliche Luft vollkommen verdrängt wird.The invention is shown in the drawing, namely Fig. i is a longitudinal section, Fig. 2 is a cross section, Fig. 3 is an external view. The heater consists of a cartridge i, in whose bores the heating coils 2 are insulated are. The heating wires 2 are with the leads 3 through on the cover 5 seated terminals 4 connected. The cartridge i will fit exactly when cold inserted into the protective sleeve 6. According to the invention, it consists of a substance which has a greater coefficient of expansion than the surrounding protective sleeve 6. When heated by the heating wires 2, the more stretching cartridge presses i therefore fed up against the protective sleeve 6, the approximately between the two surfaces existing air is completely displaced.

Claims (1)

PATENTANSPRUCFI Elektrische Heizvorrichtung zur Erwärmung flüssiger Massen, welche aus einer Schutzhülse besteht, in die eine feuerfeste Patrone mit in Bohrungen iso-' liert eingelegten Heizdrähten eingesetzt ist, dadurch gekennzeichnet, daß die im kalten Zustande genau in die Schutzhülse einschiebbare Patrone (i) aus einem Stoff besteht, der einen größeren Ausdehnungskoeffizienten besitzt als die ihn umgebende Schutzhülse (6), so daß die Patrone bei der Erwärmung durch die Heizdrähte (2) sich dauernd gegen die Schutzhülse (6) preßt.PATENT CLAIMS Electric heating device for heating liquids Mass, which consists of a protective sleeve in which a fire-resistant cartridge insulated heating wires inserted in bores, characterized in that that the cartridge (i) which can be pushed into the protective sleeve in the cold state consists of a substance that has a greater coefficient of expansion than that surrounding protective sleeve (6), so that the cartridge is heated by the heating wires (2) constantly presses against the protective sleeve (6).
DET29668D Electric heating device for heating liquid masses Expired DE467345C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DET29668D DE467345C (en) Electric heating device for heating liquid masses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET29668D DE467345C (en) Electric heating device for heating liquid masses

Publications (1)

Publication Number Publication Date
DE467345C true DE467345C (en) 1928-10-27

Family

ID=7555060

Family Applications (1)

Application Number Title Priority Date Filing Date
DET29668D Expired DE467345C (en) Electric heating device for heating liquid masses

Country Status (1)

Country Link
DE (1) DE467345C (en)

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