EP0121612A1 - Wärmespeicherofen mit einer Einrichtung zur Regelung der Ventilatorgeschwindigkeit - Google Patents

Wärmespeicherofen mit einer Einrichtung zur Regelung der Ventilatorgeschwindigkeit Download PDF

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Publication number
EP0121612A1
EP0121612A1 EP83200479A EP83200479A EP0121612A1 EP 0121612 A1 EP0121612 A1 EP 0121612A1 EP 83200479 A EP83200479 A EP 83200479A EP 83200479 A EP83200479 A EP 83200479A EP 0121612 A1 EP0121612 A1 EP 0121612A1
Authority
EP
European Patent Office
Prior art keywords
fan
resistor
heat storage
core
channel
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.)
Withdrawn
Application number
EP83200479A
Other languages
English (en)
French (fr)
Inventor
Jacques Andre
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.)
Umicore NV SA
Original Assignee
Ateliers de Constructions Electriques de Charleroi SA
ACEC SA
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 Ateliers de Constructions Electriques de Charleroi SA, ACEC SA filed Critical Ateliers de Constructions Electriques de Charleroi SA
Priority to EP83200479A priority Critical patent/EP0121612A1/de
Publication of EP0121612A1 publication Critical patent/EP0121612A1/de
Withdrawn legal-status Critical Current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
    • F24H9/20—Arrangement or mounting of control or safety devices
    • F24H9/2064—Arrangement or mounting of control or safety devices for air heaters
    • F24H9/2071—Arrangement or mounting of control or safety devices for air heaters using electrical energy supply
    • F24H9/2078—Storage heaters
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/345—Control of fans, e.g. on-off control
    • F24H15/35—Control of the speed of fans

Definitions

  • the present invention relates to a heat storage stove equipped with an extremely simple device for controlling the speed of a fan.
  • the fan is used to extract a quantity of hot air from the core which is at a variable temperature, for example at 450 ° C at the end of the charging period and at 60 ° C at the end of the unloading period.
  • a variable temperature for example at 450 ° C at the end of the charging period and at 60 ° C at the end of the unloading period.
  • a variable temperature for example at 450 ° C at the end of the charging period and at 60 ° C at the end of the unloading period.
  • the core temperature is high, a small amount of air carries enough heat for heating purposes.
  • an amount of air is required which is a multiple of that at high temperature of the core.
  • the object of the invention is to increase the range of automatic adjustment of the quantity of hot air extracted from a heat accumulator stove by means of a fan sucking in hot air or to allow automatic adjustment of the quantity hot air extracted from a heat storage stove by means of a fan blowing cold air into the core.
  • a heat storage stove equipped with a fan speed control device comprising, in series with the fan motor, a resistor that can be varied manually or that can be short-circuited is already known. Such an arrangement is used in particular to allow a manually controlled choice between rapid discharge or slow discharge of the storage stove.
  • the invention is characterized in that the resistance in series with the fan motor is made of a metal whose temperature coefficient of the resistivity is very high and in that this resistance is placed in places where it is located in the current of hot air induced by the fan.
  • Figures 1 and 2 are two schematic sections through heat storage stoves.
  • a heat storage stove comprises a core 1 heated by electrical resistances 2.
  • a fan 3 driven by a motor 4 draws air in a closed circuit through a channel 5 and blows it into a channel 6 of where it passes through the channels containing the resistors 2 in the channel 5.
  • the suction of the hot air by the fan is done through an air-water exchanger 7 and a pavilion 8. Upstream of the exchanger 7 are arranged on the air guide plates 9 to which is fixed a resistor 10 placed in series with the supply 11 of the motor 4 of the fan 3.
  • the resistor 10 is for example constituted by a spiral wire of iron-nickel, pure iron or pure nickel or another metal whose electrical resistivity exhibits a significant temperature coefficient in the range of operating temperatures, that is to say between 50 ° C.
  • the resistor 10 As the resistor 10 is arranged in the lower end of the channel 5, it is subjected to the radiation emitted by the material constituting the core 1 and when the fan stops, is at a temperature approaching that of the core. It is also possible to accommodate the resistor 10 or a portion of it in a core channel, for example in place of a resistor 2. When the fan starts, it starts at slow speed. The air leaving through channel 5 communicates its temperature by convection effect to the resistor 10. As the air leaving through the channel 5 cools, the resistivity of the resistor 10 decreases and the fan motor 4 spins faster.
  • the desired adjustment characteristic can be obtained by any suitable means, for example, either by a judicious choice of the metal of the resistor 10, or by the placing in parallel and / or in series of other resistors on the resistor 10.
  • These other resistors may or may not be temperature sensitive. In the latter case, they can be placed either in a place at ambient temperature or in a place whose temperature is a function of the temperature of the nucleus.
  • the resistor 10 is mounted on guide plates 9 upstream of the exchanger 7 and thus forms part of a modular unit comprising the fan 3 and, in the case according to FIG. 1, also the guide plates 9, the exchanger 7 and the roof 8.
  • the hot air is not ejected, but circulates in a closed circuit, it is possible to have the resistor 10 at the lower end of the channel 6. At this location, the resistor 10 is also exposed to the radiation of the nucleus and is in the current of hot air. However, at the outlet of the exchanger 7 and at the outlet of the fan 3, the air is slightly less warm than at the inlet of the exchanger 7. The difference between the air temperature at the outlet of the channel 5 and the air temperature at the inlet of channel 6 is not that great and does not have an essential influence on the operation of fan 3.
  • another heat storage stove comprises a core 1 heated by electrical resistances 2.
  • a fan 3 driven by an electric motor is connected to a power supply 11.
  • the fan sends cold air through a channel 6 from which the air passes through channels containing the resistors 2 in a channel 5 for hot air outlet.
  • a resistor 10 is placed in series with the supply 11 of the fan motor 3.
  • This resistor 10 is shown here as an armored resistor of the same constitution as the resistors 2 used to charge the heat accumulator. In the case where the resistor 10 is shielded, a small delay occurs with respect to the temperature changes and the corresponding changes in the fan speed. However, such a delay is generally quite tolerable.
EP83200479A 1983-04-01 1983-04-01 Wärmespeicherofen mit einer Einrichtung zur Regelung der Ventilatorgeschwindigkeit Withdrawn EP0121612A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP83200479A EP0121612A1 (de) 1983-04-01 1983-04-01 Wärmespeicherofen mit einer Einrichtung zur Regelung der Ventilatorgeschwindigkeit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP83200479A EP0121612A1 (de) 1983-04-01 1983-04-01 Wärmespeicherofen mit einer Einrichtung zur Regelung der Ventilatorgeschwindigkeit

Publications (1)

Publication Number Publication Date
EP0121612A1 true EP0121612A1 (de) 1984-10-17

Family

ID=8190944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83200479A Withdrawn EP0121612A1 (de) 1983-04-01 1983-04-01 Wärmespeicherofen mit einer Einrichtung zur Regelung der Ventilatorgeschwindigkeit

Country Status (1)

Country Link
EP (1) EP0121612A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0247278A1 (de) * 1986-05-27 1987-12-02 KKW Kulmbacher Klimageräte-Werk GmbH Schaltung für ein elektrisches Wärmespeicher-Heizgerät

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1942678A1 (de) * 1968-08-21 1970-05-21 Rca Corp Anordnung zur Signalspeisung bei einer in mehreren Modes arbeitenden Einzelimpulsanlage
DE1765919A1 (de) * 1968-08-07 1971-07-15 Stiebel Werke Gmbh & Co Dr Steuereinrichtung zur raumtemperaturabhaengigen Steuerung eines Warmlufterzeugers
DE1790190A1 (de) * 1968-09-25 1971-08-05 Licentia Gmbh Regelanordnung fuer einen elektrischen Waermespeicherofen
DE2328858A1 (de) * 1972-06-07 1973-12-13 Nissan Motor Heizvorrichtung
DE2233738A1 (de) * 1972-07-08 1974-01-24 Licentia Gmbh Anordnung zur steuerung der frischluftzufuhr und regelung der ausblastemperatur bei einem raumheizgeraet mit einem waermespeicherofen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1765919A1 (de) * 1968-08-07 1971-07-15 Stiebel Werke Gmbh & Co Dr Steuereinrichtung zur raumtemperaturabhaengigen Steuerung eines Warmlufterzeugers
DE1942678A1 (de) * 1968-08-21 1970-05-21 Rca Corp Anordnung zur Signalspeisung bei einer in mehreren Modes arbeitenden Einzelimpulsanlage
DE1790190A1 (de) * 1968-09-25 1971-08-05 Licentia Gmbh Regelanordnung fuer einen elektrischen Waermespeicherofen
DE2328858A1 (de) * 1972-06-07 1973-12-13 Nissan Motor Heizvorrichtung
DE2233738A1 (de) * 1972-07-08 1974-01-24 Licentia Gmbh Anordnung zur steuerung der frischluftzufuhr und regelung der ausblastemperatur bei einem raumheizgeraet mit einem waermespeicherofen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0247278A1 (de) * 1986-05-27 1987-12-02 KKW Kulmbacher Klimageräte-Werk GmbH Schaltung für ein elektrisches Wärmespeicher-Heizgerät

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19841219

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Effective date: 19860303

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Inventor name: ANDRE, JACQUES