DE10252821A1 - Device for generating, storing and giving off heat to a room to be heated - Google Patents

Abstract

The invention relates to a device for generating, storing and giving off heat to a room to be heated, comprising a device which is surrounded and limited by a jacket (14) made of refractory material, in particular made of fireclay, concrete, ceramic, clay or soapstone or a combination thereof Combustion chamber (12), a combustion device (46) arranged in the combustion chamber (12), which can be supplied with gas via a first supply line (54, 54 ') and a second supply line (56, 56') and one in the lower area (80 ) of the combustion chamber (12) arranged exhaust air line (78), the exhaust line (78) with the combustion chamber (12) via an opening (84) arranged in the upper region (82) of the combustion chamber (12) of an in the combustion chamber (12) Extending exhaust duct (86) communicates.

Description

The invention relates to a device for generating, storing and giving off heat to a heatable one Room.

Such devices, such as Example a conventional one Tiled stoves are generally known. Such a device comprises a coat made of refractory material, such as fireclay, that surrounds a combustion chamber and thus limits it. In the combustion chamber the intended heating medium, for example heating oil or wood, burned, causing heat is produced. This warmth will of these devices then, if necessary after (briefly) Storage, given to a room to be heated. Indeed such devices have been found to be relatively disadvantageous in practice proved. On the one hand, these devices usually have one Efficiency of only about 60%. This goes hand in hand with being special causes high costs in the operation of such devices. On the other hand the exhaust gases generated generally have a temperature of 100 ° C and more. In order to in turn are connected great Heat losses. Last but not least, this results in devices of this type the additional Requirement, diameter of the chimney or the exhaust pipe of at least To provide 200 mm, which inevitably the size of such Devices increased and their possible uses are significantly reduced in a small space. Finally are such devices usually assembled on site from a variety of components and then permanently installed. A way of transporting these devices is therefore excluded.

The invention is therefore the object based on a device for generating, storing and dispensing Warmth to provide a room to be heated with which the above disadvantages can be prevented, extremely high efficiency and very low at the same time Operating costs, which lowers the temperature of the exhaust gas as far as possible, whereby yourself big heat loss avoid that the diameter of the exhaust air duct is essential reduce and thus significantly improve the possible uses let, as well as which are structurally particularly simple, compact, stable and transportable at the same time is.

This task will come as a surprise easily solved by the features of claim 1.

Accordingly, the design of the device according to the invention for generating, storing and giving off heat to a heatable one Space comprising one of a sheath of refractory material, in particular made of chamotte, concrete, ceramic, clay or soapstone or a combination of these, surrounded and limited combustion chamber, a arranged in the combustion chamber, about a first supply line with gas and a second supply line with air supplyable combustion device and one arranged in the lower region of the combustion chamber Exhaust duct, the exhaust duct with the combustion chamber via a opening arranged in the upper region of the combustion chamber in the combustion chamber extending exhaust duct communicates, reach a device, which has a high degree of efficiency and is pronounced as a result low operating costs. At the same time the device according to the invention the temperatures of the exhaust gas by about half the temperature more conventional Lower devices. Not least because of this, the device according to the invention size Heat loss and size Diameter of the associated Chimneys or the corresponding exhaust air duct can be avoided. Alone the latter advantage results in improved and diverse possibilities when using the device according to the invention. So can on a separate chimney connection can be completely avoided. Finally owns the device according to the invention a very simple, compact and stable construction and also allows their transport from one place to another. As far as it is possible, the device without huge Effort to move from one place to another and then again to put into operation.

Further advantageous details the device according to the invention are in claims 2 to 27 described.

Accordingly, it is within the scope of the invention that the jacket of the fireproof material delimiting the combustion chamber Claim 2 from stones made of chamotte, concrete, ceramic, clay or soapstone is formed.

In a particularly advantageous embodiment According to the invention, the combustion chamber-cladding made of refractory Material according to claim 3 additionally with an outer cladding be provided.

In this context, the technical Features of the claims 4 to 7 of very large Interest that namely the largely visible outer cladding at least partially made of stone, in particular granite, ceramic or metal, preferably cast steel, mild steel, aluminum or one Alloy thereof, or a combination thereof is formed and that possibly the back Outer cladding heat-insulating is designed, i.e. made of thermal insulation material consists.

The fact that the combustion chamber-cladding made of refractory material is accommodated and supported by a frame according to the features of claim 8, a particularly simple, compact and stable construction can be achieved, which in addition can be easily dismantled from the device according to the invention tion, the transport and subsequent assembly of the device enables elsewhere.

It is convenient in the context of the invention that the frame according to claim 9 a floor element, angular longitudinal beam elements connected to the floor element on the corner side and one connected to the side member elements, essentially to the footprint of the Floor element adapted and surrounding head element includes.

In an advantageous embodiment further provided according to the invention, that the frame correspond to the technical characteristics of the Claim 10 made of steel, in particular stainless steel, preferably made of stainless steel. In this way the frame is and with it the entire device according to the invention resistant and for example against condensation water forming in the combustion chamber insensitive.

Of particular importance for a simple, also extremely variable handling of the device according to the invention are the technical features of claim 11, according to which the burner with a device for automatic adjustment of the gas / air ratio of the gas / air mixture to be burned dependent on the heat to be generated is provided.

The constructive measures of the Claim 12 of extremely great interest, namely that Device for automatic adjustment of the gas / air ratio of the gas / air mixture to be burned on the principle of a water jet pump based, such that the gas supplied to the combustion device via the first feed line that of the burner the second supply line Air entrains.

The combustion device very preferably comprises according to claim 13, a gas radiation burner, a burner medium with a homogeneous, permeable mat structure or the like assigned. The gas radiation burner, which is used as an injector burner acts, and the burner medium, which is in the form of a mat or plate ceramic emits infrared or glows, lead to a pronounced powerful Construction of the device according to the invention as a whole. So is due to the great area the burner medium is distributed over a large area Heat transfer possible. Last but not least, this results in an extraordinary cost-effective Operation of the device.

According to the features of the claim 14, the burner medium is made of ceramic. Is preferred the burner medium is made of ceramic fibers with silicon carbide are coated and welded together. The burner medium is powerful and forms a stable, self-supporting mat structure. Seconds already after ignition full radiation is reached. After turning off the burner the radiation has ended. Their surface cools down immediately. To this Wise becomes a long glow before ignition and the generation of residual heat avoided. Precise and optimal control is guaranteed. moreover the homogeneous mat structure results in a uniform and inexpensive radiation at the same time. Finally such a mat structure has a very long service life.

Furthermore, it is within the Invention that the gas radiation burner according to claim 15 has a housing, on the top of which the burner medium is arranged facing the combustion chamber and in which the device for automatic adjustment of the Gas / air ratio of the gas / air mixture to be burned opens.

Appropriately, is accordingly the measures of claim 16 a substantially horizontal and in one plate or plane extending from the burner medium the like in the area of the bottom of the combustion chamber to form a Space is provided over which the second supply line for air supply and the device Communicate to automatically adjust the gas / air ratio.

In an alternative embodiment a gas radiation burner is the combustion device according to claim 17 designed as a gas burner.

In practice it has turned out accordingly Claim 18 proved to be advantageous in that the first feed line to feed the gas has a diameter of between approximately 4 to 12 mm, in particular of 8 mm.

For fire police in particular establish is the second feed line the air according to claim 19 preferably through a wall of the to be heated Passable through the room. About that it is just as easy in a purely constructive sense conceivable that the second supply line for supplying the air with the one to be heated Space communicates directly.

According to claim 20, the second feed line the air has a diameter of approximately between 20 and 40 mm, in particular from 30 mm.

To simplify handling the device according to the invention further serve the features of claim 21. Accordingly, the combustion device is a piezo ignition device assigned to the gas / air mixture when starting up the device to ignite according to the invention in a simple manner.

Furthermore, it is within the scope of the invention to equip the combustion device with a thermocouple which has a valve arranged in the first supply line for supplying the gas, in particular a solenoid valve, for opening and closing the first supply line for supplying the gas Gases interacts. In this way, an extremely safe device can be created receiving, storing and releasing heat. When the flame of the combustion device is extinguished, the gas supply line to the combustion device is automatically closed and the gas supply as a whole is thus interrupted.

The constructive measures of claim 23 are again of great interest. Accordingly, the exhaust air duct extends essentially in the combustion chamber perpendicular. On the one hand lets a high efficiency of the device according to the invention is thus maintained overall. on the other hand let yourself, which is not least closely related to the technology, an effective lowering of the temperature of what is to be carried out from the combustion chamber Exhaust gas and a simple fluidic Exhaustion of the exhaust gas through an exhaust air line with a particularly low level Preserve diameter, while largely avoiding it the formation of condensation.

In a further embodiment of the invention is the exhaust air duct according to claim 24 in the rear area of the combustion chamber, especially on the back, arranged. Because the back of the combustion chamber, if necessary, heat-insulated is a heat exchange excluded in this area and thus at the same time an education counteracted by condensation.

According to the measures of claims 25 and 26 it is provided according to the invention that the exhaust duct expediently a length has the same or greater than half the height of the Combustion chamber. In particular, the exhaust air duct can have a length the about 3/4 to about 9/10 of the height corresponds to the combustion chamber.

The features of claim 27, according to which Exhaust duct through part of the combustion chamber, in particular from it Back, is also used to prevent condensation. In this way, the exhaust gas to be discharged from the exhaust air line is directly at back guided along the combustion chamber.

The exhaust air duct advantageously persists the features of claim 28 made of stainless steel, whereby the exhaust air duct and thus the device according to the invention as a whole condensate formed in the combustion chamber, sometimes aggressive Residues of unburned gas / air mixture and largely insensitive to the heat generated in the combustion chamber is.

Furthermore, it is within the Invention that the exhaust duct according to claims 29 and 30 has a cross-sectional area, which in relation to Cross sectional area the exhaust duct is between about 5: 2 or 2: 1, preferably the exhaust air duct has a cross-sectional area of 56 mm × 100 mm and the exhaust duct has a diameter of 56 mm.

Due to the constructive design of the The device according to the invention as a whole is not necessarily so required that the exhaust duct according to claim 31 in the range of Exhaust duct a device for emptying condensed water assigned. However, such a facility leads to a more extensive one Improvement of the device according to the invention.

By the measures of claim 32, the Exhaust duct in minor Placing a distance from the floor of the combustion chamber ensures that for example, formed due to very specific operating conditions Condensed water cannot escape into the exhaust air line. That so Rather, condensed water is formed at the bottom of the exhaust air duct or the combustion chamber and until the next start-up of the device according to the invention dissolved.

The are still of particular importance Features of claim 33, according to which the exhaust duct through a wall of the room to be heated can be passed through. Not least because of the overall construction and mode of operation of the device according to the invention, the smallest dimensions of the exhaust air duct allows is not a separate one Chimney required or other constructional precautions are required Connect the exhaust air duct to one.

According to the features of the claim 34 are the second supply line and the exhaust air line at the end a windbreak or the like.

Finally, it is still in the frame of the invention that the combustion chamber according to claim 35 via an opening or The like is at least partially accessible from the outside, the opening being in particular transparent, closing device or the like Window or door can be sealed with a seal is. The opening can be used for maintenance, repair and other revision work of the arranged in the combustion chamber are used.

Other features, advantages and details of the Invention result from the following description more preferred embodiments the invention and with reference to the drawings. Here show:

1 2 shows a partially broken front view of an embodiment of a device designed according to the invention,

2 a cross-sectional view through the embodiment of the device according to the invention according to line II-II in 1 , without a plate designed according to the invention,

3 a cross-sectional view through the embodiment of the device according to the invention according to line III-III in 1 , with a plate designed according to the invention,

4 a side view of the embodiment of the device according to the arrow IV in 2 .

5 a partially broken cross sectional view through the embodiment of the device according to the invention according to section V in 3 , in an enlarged view,

6A to 6D a side view, a plan view, a bottom view and a front view of a first embodiment of a combustion device designed according to the invention 1 to 5 , in an enlarged view,

7 a partially broken side view of an embodiment of a frame of the device according to the invention 1 to 5 .

8th a plan view of the embodiment of the frame according to the invention 7 .

9 a partially broken cross-sectional view through the embodiment of the frame according to line IX-IX in 7 , in an enlarged view,

10 2 shows a partially broken front view of a further embodiment of a device designed according to the invention,

11 a cross-sectional view through the embodiment of the device according to the invention according to line XI-XI in 10 .

12 a side view of the embodiment of the device according to the arrow XII in 11 .

13 a side view of the embodiment of the device according to the arrow XIII in 11 .

14 is a schematic side view of an embodiment of a combustion device according to the invention, without a combustion chamber, in an enlarged view, and

15 is a schematic plan view of the embodiment of the combustion device according to the invention 14 ,

In the description below of embodiments devices according to the invention 10 for generating, storing and giving off heat to a heatable Space are corresponding, identical components, each with identical Provide reference numbers.

The in the 1 to 5 illustrated embodiment of the device according to the invention 10 for generating, storing and giving off heat to a room to be heated (not shown) comprises a combustion chamber 12 by a coat 14 made of refractory material, in particular chamotte, concrete, ceramic, clay or soapstone or a combination thereof, is surrounded and limited.

The combustion chamber 12 limiting coat 14 is made of refractory material in the embodiment of the device 10 after the 1 to 5 formed from stones made of chamotte, concrete, ceramic, clay or soapstone or a combination thereof. The individual stones have a thickness of about 3 cm around those in the combustion chamber 12 generated heat in the combustion chamber 12 First distribute it evenly, then record and save it and finally dispense it from the outside.

Instead of the construction of the jacket 14 from individual stones, however, it is also conceivable to form the casing 14, for example from mortar made of chamotte, mixed with water glass, which results in a largely one-piece casing 14 can be preserved.

In the in the 1 to 5 shown embodiment of the device 10 is in the area of the bottom of the combustion chamber 12 a plate 16 or the like, which extends substantially horizontally. The plate 16 can alternatively or cumulatively to the jacket 14 in the region of the bottom of the combustion chamber 12 be provided. With the record 16 it is a kind of cover plate, for example an annular sheet made of stainless steel, such as stainless steel. The plate 16 , which will be described in more detail below, separates the actual combustion chamber 12 in the region of the bottom of the combustion chamber 12 from an underlying room 18 from.

Furthermore, it is the combustion chamber 12 limiting coat 14 made of fireproof material with an outer lining 20 Mistake. The outer cladding 20 comprises at least partially slabs of stone, in particular granite, ceramic or metal, preferably cast steel, mild steel, stainless steel, aluminum or an alloy thereof, or a combination thereof. The outer cladding 20 can therefore be individually adapted to the wishes and / or needs of customers. This allows the appearance and external appearance of the device 10 design as diverse as different.

The outer cladding is preferred 20 formed from such slabs of stone, in particular granite, ceramic or metal, preferably cast steel, structural steel, aluminum or an alloy thereof, or a combination thereof, which is largely visible. The present exemplary embodiment is the front side 22 and the two side faces 24 . 26 the device 10 ,

As especially from the 2 is removable, is the outer panel 20 in the embodiment shown also at least partially heat-insulating. In particular, the outer cladding 20 at the back 28 the device 10 made of thermal insulation material 30 built up. A heat exchange on the back 28 the device 10 is counteracted.

The thermal insulation material 30 is with a back wall 32 covered from, for example, galvanized sheet metal. The back wall 32 serves on the one hand to hold the thermal insulation material 30 and on the other hand to avoid mechanical damage to the thermal insulation material 30 by external influence.

Without being shown in detail, however, it is also conceivable for the outer cladding 20 to be formed entirely from slabs of stone, in particular granite, ceramic or metal, preferably cast steel, structural steel, aluminum or an alloy thereof, or a combination thereof. It is also possible to use the outer cladding 20 to further develop heat-insulating.

Due to the fact that at least the back 28 the device 10 at the in the 1 to 5 illustrated embodiment is heat insulated, there is no heat exchange on the one hand on the back 28 to the room to be heated. On the other hand, such thermal insulation leads to an extremely even heat distribution in the combustion chamber 12 all in all. This can affect the operation of the device 10 a uniform heat profile from around 100 ° C to 120 ° C in the combustion chamber 12 form.

According to the 7 to 9 is the combustion chamber 12 limiting coat 14 made of fireproof material from a frame 34 taken up and supported. So are the individual stones made of chamotte in the frame 34 inserted, clamped and then sealed with chamotte. The individual panels of the outer cladding 20 are previously used and then also from the frame 34 held.

Through the frame 34 receives the device 10 a high stiffening according to the invention. Such a construction has the additional advantage that the device 10 overall, it can be transported very easily, so that it can be set up and put back into operation elsewhere, for example in another room to be heated.

The frame 34 includes a floor element 36 , four side members 38 and a head element 40 , The side member elements 38 are angular, ie rectangular in the embodiment shown, designed and in each case on the corner side with the base element 36 , for example by screwing or welding. The head element 40 is essentially on the base of the floor element 36 adapted and designed all around. The head element 40 is again with the side member elements 38 connected. Like in the 9 is shown are retaining plates for this purpose 42 each on the side member elements 38 welded onto which the head element 40 comes to the plant and by means of screws 44 is releasably secured. The top outer panel 20 in the form of a cover plate or the like is finally on the head element 30 applied and, if necessary, fixed or secured against displacement. This can be done, for example, by means of mortar made of chamotte etc.

The frame 34 is preferably made of steel, in particular stainless steel, such as stainless steel, to be against itself in the combustion chamber 12 forming condensate etc. to be insensitive.

The device further comprises 10 according to the invention, as in the 1 to 5 is shown, a burner 46 ,

In the in the 1 to 5 illustrated embodiment of the device according to the invention 10 is the burning device 46 as a gas radiation burner 48 educated.

The gas radiant burner 48 is a burner medium 50 assigned with a homogeneous, permeable or perforated mat structure or the like. The burner medium 50 is made of ceramic. The burner medium is preferred 50 made of ceramic fibers coated with silicon carbide and welded together. The burner medium 50 is extremely powerful and forms a stable, self-supporting mat structure. Full radiation, ie infrared radiation, is reached just seconds after ignition. After switching off the gas radiation burner 48 the radiation has ended. The surface of the burner medium 50 cools down immediately.

How clearly from the 6A to 6D the gas radiant burner points out 48 a housing 52 on the top of which the burner medium 50 is arranged, namely the combustion chamber 12 facing.

The burner 46 is via a first supply line 54 with gas and a second supply line 56 can be supplied with air.

The first supply line 54 is connected to a gas bottle, not shown, for this purpose, for example. The first supply line can also be used 54 communicate with a fixed gas pipe. Any type of gas currently available on the market can be used as gas. In this respect, natural gas and propane gas, such as natural gas north, natural gas south or propane gas at different pressures, etc., are equally necessary for operating the device according to the invention 10 suitable.

Like from the 1 to 5 the second supply line leads clearly 56 in the illustrated embodiment of the device 10 from the outside through a wall 58 of the room to be heated or of the associated building into the device 10 in order to supply sufficient air and thus oxygen. In the embodiment shown, the second feed line is 56 over the back 28 the device 10 led and opens into a supply air duct 60 on. However, it is also conceivable for the second feed line 56 directly from the floor element 32 to let out (not shown).

According to the 1 the plate extends 16 in the area of the bottom of the combustion chamber 12 essentially horizontally and in one of the burner medium 50 spanned level. The plate 16 is for the formation of space 18 is provided. The space 18 , in which at the same time the first supply line 54 for the gas, communicates with a supply air duct on the one hand with intermediate arrangement 60 with the second supply line 56 for feeding the air and on the other hand with a device 62 Communicate to automatically adjust the gas / air ratio. The device 62 for automatically adjusting the gas / air ratio of the gas / air mixture to be burned opens into the housing 52 of the gas radiation burner 48 on.

Provide the device 62 for automatically adjusting the gas / air ratio of the gas / air mixture to be burned depending on the heat to be generated. In particular, the device 62 for automatically adjusting the gas / air ratio of the gas / air mixture to be burned is based on the principle of a water jet pump. In this respect, the gas radiation burner tears 48 via the first supply line 54 gas supplied to the gas radiant burner 48 via the second supply line 56 , the supply air duct 60 and the room 18 supplied air automatically with. When the gas supply is increased or decreased, the correspondingly required amount of air is automatically adjusted in accordance with the characteristics of the gas radiation burner 48 sucked. The gas / air mixture is therefore the gas radiant burner for the heating power required in a corresponding gas / air ratio 48 fed and burned by this. To increase the desired heating output, more gas is supplied via the first supply line 54 fed that automatically more air through the second supply line 56 sucked in, and vice versa. In this way, ideal combustion can be obtained. With the gas radiant burner 48 it is almost an injector burner. The gas radiant burner 48 preferably has a lambda value of 1.2, so it sucks in a mixture of gas and air of a total of about 120%. The pressure of the gas is in a range from about 10 to 60 mbar. In particular, the gas pressure is 18 mbar for natural gas, 30 mbar for international propane gas or 50 mbar for propane gases across Europe, depending on the type of gas used.

The burner 46 is still a piezo ignition device 64 assigned to ignite the gas / air mixture. The piezo ignition device 64 is over a line 66 with an ignition button 68 connected.

Finally, the burner 46 still with a thermocouple 70 equipped with a valve 72 , in particular a solenoid valve, cooperates. The valve 72 is in the first supply line 54 arranged to supply the gas and serves to open and close the first feed line 54 depending on the respective need for gas.

The operation of the burner according to the invention 46 is briefly described below:
The first supply line 54 for supplying gas to the combustion device 46 is through the valve 72 initially interrupted. Using a regulator 74 which is the valve 72 operated, the first supply line 54 released so that gas into the burner 46 through a nozzle 76 can flow in. The nozzle 76 is as a facility 62 intended. By means of facility 62 for automatic setting of the gas / air ratio of the burner 46 tears the gas introduced through the second feed line 56 supplied or in the room 18 existing air with. The gas / air mixture reaches the housing premixed 52 , then flows under the burner medium 50 and then through the plurality of openings and passages of the burner medium 50 , At the top of the case 52 the gas / air mixture becomes the combustion chamber 12 facing when the ignition button is pressed 68 via the piezo ignition device 64 inflamed. The gas / air mixture is burned evenly. The temperature of the burner 46 is from the thermocouple 70 constantly measured. The thermocouple controls depending on the measured temperature 70 then the valve 72 to the burner 46 the required amount of gas through the first supply line 54 supply. When the flame goes out, the first supply line 54 therefore promptly through the valve 72 shut off.

In addition, the device according to the invention comprises 10 an exhaust duct 78 , As especially from the 1 and 4 emerges, the exhaust air line 78 is in the lower region 80 , ie close to the floor element 36 , arranged. The exhaust air pipe communicates 78 with the combustion chamber 12 over one in the upper area 82 of the combustion chamber 12 arranged opening 84 one in the combustion chamber 12 extending exhaust duct 86 , The opening 84 of the exhaust air duct 86 is therefore in accordance with 1 and 4 to the head element 40 adjacent.

The exhaust air duct 86 is still in the back area 88 of the combustion chamber 12 and preferably on the back 28 arranged. The exhaust air duct 86 has a length that is equal to or greater than half the height of the combustion chamber 12 , The length of the exhaust air duct preferably corresponds 86 about 3/4 to about 9/10 of the height of the combustion chamber 12 , This ensures that the combustion device 46 generated heat initially in the combustion chamber 12 is stowed, which results in an even heat distribution. The heat is then transferred to the jacket 14 of the combustion chamber 12 delivered and over this and the outer cladding 20 forwarded to or into the room to be heated. Thus, at most, only a very small proportion of residual heat is removed via the exhaust air duct 78 dissipated or discharged to the outside. Not least because of this, the device 10 according to the invention, an efficiency of up to 99%, ie an efficiency that is more than half that of a conventional tiled stove, is obtained.

At the same time it is guaranteed that the through the exhaust air duct 78 exhaust gases to be discharged a temperature of about 50 ° C, that is about a half lower temperature than a conventional kachelo fen, own. At the same time, such a temperature is still high enough to prevent condensation in the exhaust air duct 86 reliably prevent.

As in the 1 to 4 is shown is the exhaust duct 86 expediently through part of the combustion chamber 12 , especially from the back 28 , educated. The exhaust air duct 86 is therefore approximately U-shaped in cross section and with two laterally projecting tabs 90 provided (cf. 5 ) which on the coat 14 are made of fireproof material. The exhaust air duct 86 is therefore extremely simple in its construction, but at the same time compact. At the same time there is condensation in the area of the back 28 of the combustion chamber 12 counteracted.

The exhaust air duct 86 is also made of stainless steel, especially stainless steel, to prevent any rust in the combustion chamber 12 excluded.

In operation of the device according to the invention 10 From a fluidic point of view, it has proven particularly advantageous that the exhaust air duct 86 has a cross-sectional area which is in relation to the cross-sectional area of the exhaust air duct 78 is between about 5: 2 to 2: 1.

The supply air duct is used to simplify the construction 60 and the exhaust duct 86 integrally formed. In the area of the second feed line 56 and the exhaust duct 78 is however a divider 92 or the like.

According to the 1 and 4 is the exhaust duct 78 at a slight distance from the floor of the combustion chamber 12 arranged. This can result in the combustion chamber 12 unexpectedly forming condensate are retained without this with the exhaust gas to be discharged through the exhaust pipe 78 can leak. The condensed water thus formed is rather below the exhaust air line 78 in the exhaust duct 86 collected and pressed out during the next heating process.

Alternatively, as in the embodiment shown in Figs 1 to 5 shown device 10 , a valve 94 be provided for emptying condensed water.

Finally, the second lead 56 and the exhaust duct 78 at the end, ie outside the wall 52 of the room to be heated, with a windbreak 96 or the like. The windbreak 96 can for example comprise baffle plates (not shown) such that in the second feed line 56 , the supply air duct 60 and the separated room 18 any flow is excluded. In the room 18 it is absolutely windless. The space 18 is insensitive to external pressure. In the room 18 there is atmospheric pressure, ie no wind overpressure or underpressure.

Furthermore, the 1 and 4 removable that the combustion chamber 12 through an opening 98 or the like is at least partially accessible from the outside. In particular for maintenance, repair or revision purposes, access to the combustion chamber is possible 12 or that in the combustion chamber 12 arranged burner 46 to be required. The opening 98 is a, in particular transparent, locking device 100 , for example in the form of a window or a door, can be sealed.

In the 10 to 13 is another embodiment of a device designed according to the invention 10 shown.

So the burner is 46 as a gas burner 102 trained of a first lead 54 ' with gas and a second supply line 56 ' is supplied with air.

The first supply line 54 ' is again connected to a gas bottle, not shown, for this purpose. The second supply line 56 ' leads from the outside of the device 10 through the combustion chamber 12 to the gas burner 102 to supply room air from the room to be heated.

The gas burner 102 who in the 14 and 15 is shown schematically in an enlarged view, is again a piezo ignition device 64 assigned to ignite the gas / air mixture. The piezo ignition device 64 is over a line 66 with an ignition button 68 connected.

Furthermore, the gas burner 102 still with a thermocouple 70 equipped with a valve 72 , in particular a solenoid valve, cooperates. The valve 72 is in the first supply line 54 ' arranged to supply the gas and serves to open and close the first feed line 54 ' depending on the respective need for gas.

The first supply line 54 ' for supplying gas to the gas burner 102 is through the valve 72 initially interrupted. Using a regulator 74 which is the valve 72 operated, the first supply line 54 ' released so that gas in the gas burner 102 can flow in through a nozzle, not shown. On the lower part of the gas burner 102 tears the gas introduced through the second feed line 56 ' supplied air with. The gas / air mixture reaches the top of the gas burner 102 and is in this area when the ignition button is pressed 68 via the piezo ignition device 64 inflamed. The gas / air mixture is burned evenly. The temperature of the gas burner 100 is from the thermocouple 70 constantly monitored. The thermocouple controls depending on the measured temperature 70 then the valve 72 to the gas burner 102 the required amount of gas through the first supply line 54 ' supply. When the flame goes out, the first supply line 54 ' therefore promptly through the valve 72 shut off.

Different in the embodiment of the device 10 according to the 10 to 13 to that after the 1 to 5 is finally the arrangement of the exhaust air duct 78 at the back area 88 , So there is exhaust air duct 78 not like the Embodiment according to the 1 to 5 approximately in the middle of the back, but on the right side in the corner area.

example

A device according to the invention has been used in practice 10 proven to be particularly advantageous in a surprisingly simple manner. The device 10 According to the invention, for example, the following dimensions and characteristics can have:
The external dimensions of the device 10 are about 1000 mm × 740 mm × 740 mm. The coat 14 consists of a 34 mm thick refractory material, such as chamotte, and a 10 mm thick outer cladding 20 , The side member elements 38 of the frame 30 have a thickness of 1.5 mm. The burner 46 is equipped with a burner output of approximately 340 W to approximately 3.5 kW, in particular approximately 500 W to 2.3 kW. The first supply line 54 for supplying the gas has a diameter of 8 mm, but can also vary in a range from about 4 to 12 mm. The second supply line 56 for the supply of air has a diameter of 34 mm, but can also vary in a range between about 20 and 40 mm. The exhaust air duct 86 has a length of 750 mm and a cross-sectional area of 50 mm × 100 mm. The exhaust duct 78 has a diameter of 50 mm.

The efficiency of the device according to the invention 10 is 98% to 99%. The temperature in the combustion chamber 12 is about 100 to 120 ° C over a uniformly distributed heat profile. The temperature of the through the exhaust duct 86 guided and the exhaust duct 78 exhaust gas to be discharged is about 35 ° C to 50 ° C. The CO ₂ emissions are around 4.7%.

Operation of the combustion device has proven to be extremely economical 46 with or, with a heating power between about 800 W to about 1 kW inclusive. With a heating period of almost 12 hours, heat is emitted due to the storage of the heat by the device 10 according to the invention by another 6 hours.

As a result, the device 10 according to the invention is a heat accumulation gas storage furnace which is simple, compact and reliable and, as a result of a specially designed exhaust system, ensures that the heat in the device 10 remains and is not led out through the chimney or chimney, as in a conventional tiled stove. The efficiency of the device 10 according to the invention is extremely high. This is accompanied by the operating costs of the device according to the invention 10 low. Not least because of the specific construction and mode of operation of the device according to the invention 10 properties of a conventional tiled stove with regard to the radiant heat can advantageously be combined with those of a so-called external wall heater. So is the device 10 according to the invention because of the small dimensions of the exhaust duct 78 no separate chimney necessary. The device 10 can rather be passed through a wall of the room to be heated, such as an outer wall heater, to the outside without much effort. Finally, the device according to the invention 10 due to the proposed frame 30 Can be transported anytime and anywhere.

Claims (35)

Device for generating, storing and giving off heat to a room to be heated, comprising a jacket ( 14 ) made of fireproof material, in particular fireclay, concrete, ceramic, clay or soapstone or a combination thereof, surrounding and limited combustion chamber ( 12 ), one in the combustion chamber ( 12 ) arranged via a first feed line ( 54 . 54 ' ) with gas and a second supply line ( 56 . 56 ' ) Air-supplied burner ( 46 ) and one in the lower area ( 80 ) of the combustion chamber ( 12 ) arranged exhaust duct ( 78 ), with the exhaust duct ( 78 ) with the combustion chamber ( 12 ) in the upper area ( 82 ) of the combustion chamber ( 12 ) arranged opening ( 84 ) one in the combustion chamber ( 12 ) extending exhaust duct ( 86 ) communicates. Apparatus according to claim 1, characterized in that the combustion chamber ( 12 ) limiting coat ( 14 ) is made of fireproof material made of chamotte, concrete, ceramic, clay or soapstone. Apparatus according to claim 1 or 2, characterized in that the combustion chamber ( 12 ) limiting coat ( 14 ) made of fireproof material with an outer cladding ( 20 ) is provided. Device according to claim 3, characterized in that the outer lining ( 20 ) at least partially comprises slabs of stone, in particular granite, ceramic or metal, preferably cast steel, structural steel, aluminum or an alloy thereof, or a combination thereof. Device according to claim 4, characterized in that the largely visible outer lining ( 20 ) made of stone, in particular granite, ceramic or metal, preferably cast steel, mild steel, aluminum or an alloy thereof, or a combination thereof. Device according to one of claims 3 to 5, characterized in that the outer cladding ( 20 ) at least partially heat-insulating det. Apparatus according to claim 6, characterized in that the rear outer lining ( 20 ) made of thermal insulation material ( 26 ) consists. Device according to one of claims 1 to 7, characterized in that the combustion chamber ( 12 ) limiting coat ( 14 ) made of fireproof material from a frame ( 34 ) is absorbed and supported. Apparatus according to claim 8, characterized in that the frame ( 34 ) a floor element ( 36 ), on the corner with the floor element ( 36 ) connected, angular longitudinal beam elements ( 38 ) and one with the side member elements ( 38 ) connected, essentially to the base of the floor element ( 36 ) adapted and circumferential head element ( 40 ) includes. Apparatus according to claim 8 or 9, characterized in that the frame ( 34 ) made of steel, in particular stainless steel, preferably stainless steel. Device according to one of claims 1 to 10, characterized in that the combustion device ( 46 ) with one facility ( 62 ) is provided for automatically adjusting the gas / air ratio of the gas / air mixture to be burned depending on the heat to be generated. Device according to claim 11, characterized in that the device ( 62 ) for automatically adjusting the gas / air ratio of the gas / air mixture to be burned based on the principle of a water jet pump, such that that of the combustion device ( 46 ) via the first supply line ( 54 . 54 ' ) gas supplied to the combustion device ( 46 ) via the second supply line ( 56 . 56 ' ) entrains the supplied air. Device according to one of claims 1 to 13, characterized in that the combustion device ( 46 ) a gas radiation burner ( 48 ) to which a burner medium ( 50 ) is associated with a homogeneous, permeable mat structure or the like. Device according to claim 13, characterized in that the burner medium ( 50 ) made of ceramic, in particular ceramic fibers, which are coated with silicon carbide and welded together. Device according to claim 13 or 14, characterized in that the gas radiation burner ( 48 ) a housing ( 52 ), on the top of which the burner medium ( 50 ) the combustion chamber ( 12 ) is arranged facing and into which the device ( 62 ) for automatic adjustment of the gas / air ratio of the gas / air mixture to be burned opens. Device according to one of claims 13 to 15, characterized in that a plate which extends essentially horizontally and in a plane spanned by the burner medium ( 16 ) or the like in the area of the bottom of the combustion chamber ( 12 ) to form a room ( 18 ) is provided, via which the second feed line ( 56 . 56 ' ) to supply air and the device ( 62 ) communicate to automatically adjust the gas / air ratio. Device according to one of claims 1 to 16, characterized in that the combustion device ( 46 ) includes a gas burner. Device according to one of claims 1 to 17, characterized in that the first feed line ( 54 . 54 ' ) for supplying the gas has a diameter of approximately between 4 to 12 mm, in particular 8 mm. Device according to one of claims 1 to 18, characterized in that the second feed line ( 56 . 56 ' ) to supply air through a wall ( 58 ) of the room to be heated can be passed through. Device according to one of claims 1 to 19, characterized in that the second feed line ( 56 . 56 ' ) for supplying the air has a diameter of approximately between 20 and 40 mm, in particular 30 mm. Device according to one of claims 1 to 20, characterized in that the combustion device ( 46 ) a piezo ignition device ( 64 ) is assigned to ignite the gas / air mixture. Device according to one of claims 1 to 21, characterized in that the combustion device ( 46 ) with a thermocouple ( 70 ) is equipped with one in the first supply line ( 54 . 54 ' ) arranged valve for supplying the gas ( 72 ), in particular a solenoid valve, for opening and closing the first supply line ( 54, 54 ' ) cooperates to supply the gas. Device according to one of claims 1 to 22, characterized in that the exhaust air duct ( 86 ) in the combustion chamber ( 12 ) extends essentially vertically. Device according to one of claims 1 to 23, characterized in that the exhaust air duct ( 86 ) in the back area ( 88 ) of the combustion chamber ( 12 ), especially on the back ( 28 ), is arranged. Device according to claim 24, characterized in that the exhaust air duct ( 86 ) has a length that is equal to or greater than half the height of the combustion chamber ( 12 ). Device according to claim 25, characterized in that the exhaust air duct ( 86 ) has a length that is approximately 3/4 to approximately 9/10 of the height of the combustion chamber ( 12 ) corresponds. Device according to one of claims 1 to 26, characterized in that the exhaust air duct ( 86 ) through part of the combustion chamber ( 12 ), especially from the back ( 28 ), is formed. Device according to one of claims 1 to 27, characterized in that the exhaust air duct ( 86 ) made of stainless steel, especially stainless steel. Device according to one of claims 1 to 28, characterized in that the exhaust air duct ( 86 ) has a cross-sectional area which is in relation to the cross-sectional area of the exhaust air duct ( 78 ) is between about 5: 2 to 2: 1. Apparatus according to claim 29, characterized in that the exhaust air duct ( 86 ) a cross-sectional area of 50 mm × 100 mm and the exhaust air duct ( 78 ) have a diameter of 50 mm. Device according to one of claims 1 to 30, characterized in that the exhaust air duct ( 86 ) in the area of the exhaust air duct ( 78 ) An institution ( 94 ) is assigned to drain condensate. Device according to one of claims 1 to 31, characterized in that the exhaust air line ( 78 ) at a slight distance from the floor of the combustion chamber ( 12 ) is arranged. Device according to one of claims 1 to 32, characterized in that the exhaust air line ( 78 ) can be passed through a wall of the room to be heated. Device according to one of claims 1 to 33, characterized in that the second feed line ( 56 . 56 ' ) and the exhaust air duct ( 78 ) with a windbreak at the end ( 96 ) or the like are provided. Device according to one of claims 1 to 33, characterized in that the combustion chamber ( 12 ) through an opening ( 98 ) or the like is at least partially accessible from the outside, the opening ( 98 ) via a, in particular transparent, closing device ( 100 ) or the like window or door can be sealed.