DE1679271A1 - Space heating system with underfloor heat storage - Google Patents

Description

1679171 Iserlohn, April 19, 1967

18o / Bo / Bie. -325ο-

WITTE HEIZTECHNIK GMBH & CO. ISERLOHN, BARBAROSSASTR * 17

Space heating system

with underfloor heat storage

Floor heating systems are known where electrical Heating conductors are laid in the floor. The heat is released upwards into the room to be heated. Such a type of heating is energy-saving, adjustable and, on top of that, recommended for health reasons. It fulfills the well-known requirement according to which the feet should be kept as warm as possible and the head "kept as cool as possible.

Since the costs of electrical heating energy are still relatively high, even with such an economic principle, it has already become common to create ^{puss floor heating systems in the form of 3 heat stores.} So here the heating cables are in contact with heat-storing masses that can store a sufficient amount of heat for a longer period of time. The supply of electrical energy takes place here in the low tariff hours, i.e. preferably at night.

Disadvantages of this embodiment are that the heat output cannot be regulated and that it is not constant

$ 10915/0471

Surface temperature can be reached. > _S sailing in the morning, the floor temperature to be relatively high, while the _s evening the temperature will be mostly dropped to an insufficient value -: Rather, in the period immediately after the completion of charging, ie in the. Especially in those rooms and apartments that are mainly to be used in the evening (apartments, working families, club rooms and the like), this working behavior of the heating system is both inefficient and uncomfortable at the same time. Controllable underfloor storage heating would therefore be ideal.

This direction has already been suggested somewhere in or a high-quality, thermally insulated room close to the room to be heated To set up a storage tank in a commercially available design and its heat content if required by means of air or liquid through a To conduct duct systems arranged in the floor · Such systems have proven themselves quite well in the experimental stage; However, their disadvantage is the additional space and space required for the actual heat storage including its thermal insulation Changing clothes. "'" "* -

In order to at least approximately avoid all these deficiencies, a system has also become known in which the floor itself has sufficient storage capacity and is electrically heated from the inside. The heat release in the ^v-room to be heated Äufiageschicht insulation is reduced slowed to an acceptable hatred by an additional · However, it is readily understood that even with this system, not a constant for many hours Öberflächentemperatur yet

109815/0471

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Savings in storage material, which ultimately translates into price, and structural aspects benefit the entire · project ·

The heat discharge of the floor according to the invention should be in the ■ most common .embodiment can be done with the help of air. * ' In this case, the feed direction is designed as a fan. which draws in room air somewhere if necessary, through the floor conducts and returns it warmed up elsewhere in the room. For the sake of convenience, a wider thought suggests This invention suggests that the air outlet is not at floor level but by using a convection shaft at a higher one. Place of the to, heating, - room takes place. From heating technology For reasons, the arrangement of such a shaft is recommended about below, the window. ; . . .- ■ ■ ..-. ·. · - - <

Such a shaft can also contain the discharge fan, whereby it should be expedient to use the electric drive motor to be arranged laterally in a thermally insulated area. For the :. Case that for the purpose of further increasing comfort and hygiene A duct of a similar type is also provided in the air intake area it is advisable to arrange the discharge fan there so it stays much cooler overall, there, just it in contact with the cool and not with the heated air comes* ,, .-

It would be possible and feasible to have a single heat extraction channel to be provided in the floor, which runs in a meander shape and on

15 / 04-71 OflKSNAL INSPECTED -

corresponding point is connected to the conveyor. Especially with large surfaces and large rooms, which therefore greater quantities of heat are required, it proves expedient, a plurality of parallel flow-through channels-use, which is likewise arranged in the floor as possible open into a common collecting chamber and opens into the conveying device.

In an inventive application of the above features, it would also be possible, an approximately annular verlaufendes.Fußboden-channel system to use that a liquid flows through you, which is passed through a radiator arranged in the space members in turn on operation of the conveyor. A closed circuit would then be formed here, from the pipe system in the floor (inner pitch circle for heat absorption) and the sectional radiator (outer pitch circle for heat dissipation); The conveying device designed as a pump would have to be arranged at a suitable point between the two. This design has the "advantage of greater hygiene, since room air is not circulated directly? -'- This special form is particularly recommended for hospitals, pharmacies, operating theaters and the like. Instead of the liquid medium, air can also be used, so that in this If a self-contained air circuit is formed that is not connected to the actual room air.

The attached drawing shows two basic features

109815/0471 ORiGiNAi

1673271

management examples for the features of the invention shown: ^r Figure 1 shows a system with direct room air circulation,

FIG. 2 shows a modified system with an internal fluid circuit.

The Fufibodenechicht 1 shown in Figure 1 has heat-storing properties such as found in magnesite, olivine and also in concrete, and the like. In this floor layer there are electrical heating devices * 2, with which these storage masses are heated to a relatively high temperature, preferably at night. The heat dissipation towards the top is almost completely prevented with the help of the insulating layer 3. Nevertheless, compared to the conventional unheated, ie quite cold-looking floors , there is a comfortable and physiologically advantageous effect for the common user. On top of that, the sound insulation is improved from floor to floor with this type of construction.

The thickness and quality of the insulation layer 3 is chosen so that if the associated room is not to be heated for several hours, a certain basic safety temperature control is guaranteed is. For the purpose of the actual room heating, the fan 5 can be put into operation if necessary, with the

• then sucked in cool room air through the channels 4, 4a, 4b and heated from the vertical shaft 6 out into the

. Space is returned for the air vent 6 a should

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are expediently arranged below the window parapet; i, Mä , it goes without saying, that., the longitudinal section - of the shaft can be kept much narrower than the corresponding total dimension - of the floor.

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Collecting space 11 is provided, in which the storage channels in turn and the discharge fan on the other hand Mneinmunden * ■. -

In thick lines it is indicated that a similar shaft 61 can also be provided on the suction side and that in this. If that. Entladegebiäse 51 are housed there, could. which makes it cooler and accordingly a bit smaller and cheaper can be chosen »:

Figure 2 shows a self-contained, closed circuit that of a liquid flows through it and proceeds as follows:

From the right partial collecting pipe 1, 1 a through the right channel group 4 b into the front collecting pipe 11 c, from there through the left channel group 4 e back to the left part collecting pipe 11 b then through: * the conveying device 52 through out of the floor, through the room heating element heater ^ J ^^ and finally back into the floor. So there is nothing here. The room air to be heated flows directly through the floor., * ,,.

It goes without saying that in all mentioned and shown Execution of the conveyor device e.g. via a room thermostat can be controlled automatically so that the room heating takes place in the correct and economical dosage.

10981S / Q471

ORIGINAL INSPECTED

Säiiitliciie Märfcfiäley those included in the description Assumption and iit the claims were opened, Itöiinöii |, e ftii.-si.oiii as stitch, in. den v-ersöhiedfensten, 'not i e ± wähüt & n Koeniijinationen · for the> Vei-wlrlchüng the of the present invention. The following "coveted ..Seiiütz should- be.- äüeh on expertly naheliegönöe e 'means extend *

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IMSPECTEO

Claims (1)

Claims ' € k ■ J b / 9 2 / t IJ Floor heat storage, in particular with electrical heating, equipped with an upper thermal insulation layer, characterized in that the thermal insulation layer (3) is dimensioned so that it can only let a fraction of the ■ storage _{heat through r} further characterized by heat extraction ducts (4) » which 'are arranged in the area of the storage medium (1) and • are connected to an unloading conveyor. 2. Floor heat storage according to claim 1, characterized in that that the heat extraction channels (4) for the flow of room air are set up and that the conveyor device (5) as Fan, in particular designed as a roller fan. 5. floor heat accumulator according to claim 1, characterized in that that the heat extraction channels (4). to flow through with a Liquid are set up as the conveying device Pump is designed and is connected to a space heater, preferably with a sectional radiator (7). 4 * floor heat storage according to claim 2, characterized in that that with the Karialsystem (4; 4a; 4b) of the memory (l) at least a vertical convection chimney (6) is connected, the air outlet openings (6a) of which open into the room to be heated. 5. Floor heat storage according to claim 4, characterized in that that the discharge fan (5.) is arranged in the convection chimney (6). 6. Floor heat storage according to one or more of the aforementioned Protection claims, characterized by an intake duct (61) for the room air to be heated, which is connected to the duct system (4; 4a; 4b) is connected and contains a discharge fan (51). 7. Floor heat storage according to one or more of the aforementioned Protection claims, characterized in that between the conveying device (5; 51) and the channel system a collecting space (11) is arranged. 109815/0471 WITTE 3250 ORIGINAL INSPECTED / 70 Blank page