DE2540678A1 - MIXED OPERATED STORAGE RADIATORS - Google Patents

Description

CA.EM Construction d'Appareils Electriques et Mecaniques, SA, 29-30, rue du Chemin de Fer,
STRASBOURG-KOENIGSHOFFEN (Bas-Rhin, France)

Mixed operated storage heater

The present invention relates to the field of heating living spaces, in particular by means of electrical heating, and refers in detail to a mixed operated storage heater

In the field of household electrical heating by individual A main distinction is made between devices in every room the direct heating radiators and the storage radiators.

The direct heating radiators generate heat very quickly as soon as it is needed, for everyone Moment, both day and night. The intended heating output is taking into account the climatic factors, the Location and construction work. This power corresponds to 1.2 times the heat loss in order to achieve rapid production to enable heating operation.

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This direct heating method is quite expensive to run, especially for the earlier, traditional residential buildings Design and without thermal insulation.

The storage radiators have the advantage of consuming night-time electricity at a reduced tariff.

They store the heat during the night in order to return it as needed the following day. The calculation of the The intended heating output takes place on the same basis as that of direct heating, but it also has to take into account the daily heating time of the room.

This type of heating, which is cheap to operate, requires a fairly high investment, since the connection values are often very important and up to three times that Can achieve the value of the heat loss. These high installation costs prevent this type of heating from becoming widespread.

The present invention aims to remedy the disadvantages of these known electric radiators.

It has a mixed-operated storage heater to the subject, which essentially consists of a part that during the night heat accumulates to this the following day return, and the one consumer circuit with Resistors, a current-limiting thermostat and, if necessary, an electronic one that is dependent on the outside temperature Controller or an hour programmer, as well as a discharge circuit with a ventilation device for the Includes heat return, flow regulating thermostats, and an additional device for direct heating.

According to one characteristic of the invention, there is direct Heating device made up of direct resistances and a two-pole

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gen ambient temperature thermostat with offset contacts, which provides the necessary heat for complete heating is delivered as soon as the heat accumulator reaches the end of the heat release.

According to another exemplary embodiment of the invention, the resistors are from the consumer circuit by a relay device separated, if the heating takes place through the direct resistances during the time of the heat storage.

For a better understanding of the invention, the following description serves, which is based on an unlimited specified, preferred embodiment, which is explained with reference to the accompanying schematic drawings.

Show it :

Fig. 1 shows the circuit diagram of the inventive, mixed operated storage heater, and

Fig. 2 shows the operating diagram of this storage heater.

According to the exemplary embodiment according to the invention shown in FIG. 1, there is a mixed-operated storage heater essentially from a part 1, which stores the heat at night and releases it during the day. It contains on this a consumer circuit 5 with three equal resistors 6, 7, 8, a current-limiting thermostat 9 and if necessary an electronic controller 10 dependent on the outside temperature or an hour programmer 11, and also one Discharge circuit 12 with a ventilation device 13 for the heat return, and the current-regulating thermostats 15 and 16, as well as a device 2 for direct heating.

This device 2 consists of the direct resistors 3 and 4 and a two-pole room temperature thermostat

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complete

14, with staggered contacts to ensure / heating when the heat accumulator reaches the end of heat emission.

The thermostats 15 and 16 automatically cause the switching on of one or the two direct resistors 3 and 4, as soon as the remaining heat supplied by the storage tank is insufficient and the room temperature is the one set on the thermostat 14 Value falls below (setpoint contact 2O ° C closed and misaligned contact 19 ° C also closed).

The operating principle of the storage heater according to the invention is explained in more detail below with reference to the diagram in FIG.

In this diagram, the abscissa axis represents the time and the ordinate axis the heating power. A period of 24 hours divided into two sections is entered on the abscissa axis; one goes from 10 p.m. to 6 a.m. and is intended for storing heat, while the other is used for heat return from 6 a.m. to 10 p.m.

During the period of heat storage, i.e. from 10 p.m. to 6 a.m., the storage capacity Pi is equal to that of Pd, which füi / direct heating would be installed by radiator, and is equal to 1.2 times the heat loss D, therefore:

Pi = Pd = 1.2 D

For the first heating hours, for example from 6 a.m. to 12 p.m., the returned power is regulated by means of the room temperature thermostat 14 so that it is at least equal to D = 0.83 Pi. If at 12 o'clock the stored and returned heating output is insufficient to ensure the desired room temperature, e.g. 20 ⁰ C, which therefore drops by 1 ° C, i.e. to 19 ° C, then a first direct resistor 3 with output P3d = 1 / 3 Pi through the thermostat 15

switched on.

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Since the temperature of the storage tank continues to fall, the heating output is reduced despite the supply through the resistor 3 again to less than 0.83 pi, for example at 5 p.m., whereupon the second direct resistance 4 of the power P4d = 1/3 Pi is switched on by the thermostat 16 will.

When the outside temperature is minimal, it is possible to regulate the room temperature throughout the day, even in variable way, preferably using the heat that was stored between 10 p.m. and 6 a.m. with night electricity.

The invention also provides for the possibility of direct heating after 10 p.m. To get the power consumed Pi not to be exceeded, this is done by a relay device 17 and 18 the switching off of the resistors 6 and 8 is carried out if the direct heating by the resistors 3 and 4 is in operation.

The present invention is used in the field of heating of living spaces, public spaces, etc.

The invention is not limited to the exemplary embodiments described and shown in the accompanying drawings. Changes remain possible, especially with regard to the structure of the various elements, without thereby exceeding the scope of the invention.

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Claims (5)

] \ Mixed operated storage heater, characterized in that that it essentially consists of a part that stores the heat at night and returns it during the day, and the a consumer circuit with resistors, a current-limiting one Thermostat, and if necessary an electronic controller or one that is dependent on the outside temperature Hour programmer possesses, as well as a discharge circuit with a ventilation device for heat return, flow regulating thermostats, and from a device for direct heating that is located in the discharge circuit that supplements the heating with storage heat or enables rapid heating between the seasons when the storage tank is not in operation. 2. Storage heater according to claim 1, characterized in that the device for direct heating from direct resistances and consists of a two-pole room temperature thermostat with offset contacts that allow the to supply the necessary heat to ensure a complete heating system when the heat output of the storage tank has ended achieved. 3. Storage heater according to claim 1-2, characterized in that that a relay device switches off the resistances of the consumer circuit when the heating is through the direct resistances during the heat storage is in operation to the total absorbed by the storage heater Short-term power to the nominal power of the storage part to limit. 4. Storage heater according to claim 1-2, characterized in that the fractional switching on of the direct resistances takes place automatically depending on the heat collected in the memory. 5. Storage heater according to claims 1-4, characterized in that that the direct resistances turn on only when the fan device is for the return 6098 1 3/0961 -Sr- the storage heat remains switched on without interruption (closing of the setpoint contact 20 ° C), whereby the direct Resistors then with total or reduced power in a variable cycle ratio from 0 to 100% (repeated Closing and opening of the offset contact 19 ° C depending on the current room temperature), for the purpose of preferential wise use of the storage heat. 6098 1 3/0961