EP4089331A1 - Chimney-integrated pellet furnace - Google Patents

Abstract

Heating arrangement (1) for heating buildings with a first heating device (2) which has a fireplace (22) and at least one device for removing smoke, and with a chimney (4) which is in flow connection with the fireplace (22) in order to remove the smoke in an operating state and with a connecting line which is at least partially connected to the fireplace in order to supply air to the fireplace (22), wherein the fireplace (22) and the chimney (4) are designed as a structural unit and wherein the fireplace (22) is suitable and intended for burning pellets, characterized in that the fireplace (22) can be operated without electricity.

Description

The present invention relates to a heating arrangement for heating buildings. A wide variety of heating arrangements are known from the prior art. It is also known in the prior art that a heating arrangement is already integrated in a chimney and can be installed in a building in this state. Various heating arrangements for different fuels are also known from the prior art, including heating arrangements for pellets. Ready-made pellet stoves usually require a power supply for various functions. For example, the pellets are fed into a motor-driven drive. In this embodiment, these ovens are only suitable to a limited extent for ready-to-install.

The object of the present invention is therefore to provide a heating device in the form of a pellet stove which can be easily integrated into the building and, in particular, can also be operated independently. This is achieved according to the invention by the subject matter of claim 1. Advantageous embodiments and developments are the subject of the dependent claims.

A heating arrangement according to the invention for heating buildings has a first heating device which has a fireplace and at least one device for removing smoke. In addition, the heating arrangement has a chimney which is in flow connection with the fireplace in order to discharge smoke in an operating state. In addition, a connecting line is provided, which is at least partially connected to the fireplace connected to supply air to the fireplace. The fireplace and the chimney are designed as a structural unit and the fireplace is suitable and intended for burning pellets. According to the invention, the fireplace can be operated without current.

It is therefore proposed that an electric drive, which feeds in pellets, for example, should not be provided, as is the case with conventional pellet stoves. The heating arrangement preferably has a receptacle for receiving pellets. The pellets can be ignited within this receptacle, which can be done, for example, using a wood wool igniter.

In a preferred embodiment, the heating arrangement can be operated without current or auxiliary energy.

It is possible that combustion air is passively sucked in even during continuous operation or at times, which means that no drive means such as pumps and the like are available here either. It is therefore also preferred not to supply fuel granules during operation.

It is conceivable that the storage container mentioned above is filled once with fuel granules, in particular with pellets, for operation. As mentioned above, a solid or liquid igniter can be used or ignited for ignition.

Electrically operated fans or other units for actively supplying primary combustion air and/or for removing smoke are also advantageously dispensed with. In addition, preferably no electrically operated control devices or the like or also electrically operated control means are provided.

In a further advantageous embodiment, the device has a discharge device for discharging convection air. This can be arranged above or below the fireplace.

In a further advantageous embodiment, the device has a control device and in particular a passive control device in order to control the quantity of air supplied for the combustion. In particular, this control device can be actuated manually.

In a further advantageous embodiment, the heating arrangement has a door closing the fireplace, which has a first segment and a second segment which are angled with respect to one another. These two segments are advantageously bent at an angle of essentially 90° with respect to one another.

These two segments preferably extend over a corner section of the chimney and/or the fireplace.

In a further advantageous embodiment, the fireplace has a height that is greater than 300 mm, preferably greater than 400 mm, preferably greater than 500 mm.

In a further advantageous embodiment, the height of the fireplace is less than 1200 mm, preferably less than 1000 mm and preferably less than 800 mm. These dimensions have proven to be particularly suitable for integrating the fireplace into a chimney.

In a further advantageous embodiment, the fireplace has a container which can be removed from the fireplace and is suitable and intended for receiving pellets. This container can preferably be changed manually. In this case, in particular, no feed mechanism is provided for feeding in the container.

In a further advantageous embodiment, the fireplace is arranged or integrated in a recess in the heating arrangement (and/or a jacket of the heating arrangement), which extends both in the longitudinal direction and in the width direction as well as in a depth direction of the heating arrangement, with the fireplace both in the longitudinal direction as well as in the width direction and in the depth direction is respectively shorter than the heating arrangement in its entirety.

In the longitudinal direction, the fireplace preferably has at most 80%, preferably at most 70% and preferably 60% of the length of the heating arrangement. The fireplace preferably has at least 20%, preferably at least 30% and at least 40% of the length of the heating arrangement in the longitudinal direction.

In the width direction, the fireplace particularly preferably has at most 90%, preferably at most 80%, preferably at most 70% of the width of the heating arrangement. Especially preferably the fireplace has at least 30%, preferably at least 40%, preferably at least 50% and particularly preferably at least 60% of the width of the heating arrangement in the width direction.

In a further advantageous embodiment, the depth of the fireplace is at most 90%, preferably at most 80%, preferably at most 70% of the depth of the heating arrangement. In a further advantageous embodiment, the depth of the fireplace is at least 30%, preferably at least 40%, preferably at least 50% and preferably at least 60% of the depth of the heating arrangement.

In a further advantageous embodiment, the heating arrangement is cuboid. In a further advantageous embodiment, the fireplace is also cuboid.

In a further advantageous embodiment, the fireplace has at least one and preferably a large number of screens and in particular steel screens.

In a further advantageous embodiment, the heating arrangement has a casing, and in particular a concrete casing, which forms a recess for accommodating the fireplace.

This jacket is preferably designed in such a way that flow paths for combustion gas and combustion air, i. H. the air to be supplied to the fireplace are provided.

In a preferred embodiment, the shell has a first duct which is in fluid communication with a smoke exhaust duct through which combustion gases are exhausted. This line preferably has an exhaust gas pipe which is integrated into the jacket. In a preferred embodiment, an insulating device or a damping device is also provided. This insulating device can surround said line and/or a flow channel formed by this line at least partially and preferably completely.

Therefore, the line that is used to discharge flue gases is preferably made in at least two parts and preferably exactly in two parts, with one section of this line preferably running inside the jacket and one section inside a wall delimiting the fireplace wall. These sections preferably have at least a slightly different cross section.

In a further preferred embodiment, the jacket has a further duct which is preferably in flow connection with the supply duct which supplies fresh air to the fireplace.

In this case, this channel can be designed as an air shaft, to which the feed channel is connected. This air duct can preferably have a larger cross section than the feed channel.

In a further preferred embodiment, this channel runs parallel to the line which is used to discharge the smoke gases. This channel is preferably separated from the line, which is used to discharge smoke gases, and/or spaced apart from this line by the material of the jacket.

In a further advantageous embodiment, the further duct, which serves to supply fresh air to the fireplace, is designed as a duct which at least partially surrounds and preferably completely surrounds the above-mentioned line for discharging the flue gases. In this configuration, this further channel is preferably designed as an air gap surrounding the line for exhaust gas discharge, in particular an all-round air gap. This duct preferably has a larger cross section than the duct used to discharge the exhaust gases.

In a further advantageous embodiment, this jacket has at least one and preferably at least two ventilation openings. These can be arranged in particular above the recess which serves to accommodate the fireplace. These openings are advantageously arranged in those side surfaces of the shell in which openings for forming the recess for the fireplace are also arranged.

In a preferred embodiment, grids are arranged in these openings.

In a further advantageous embodiment, the heating arrangement has a LAS chimney. Overall, therefore, the heating arrangement in its entirety without further Connections to an environment, ie neither gas connections nor electrical connections or the like are used in a building.

In a further advantageous embodiment, the jacket has a rectangular profile at least in sections. The jacket preferably has a constant profile along its height direction. However, the breakouts for the recess are not taken into account. Preferably, the jacket (disregarding the recesses) has a cuboid shape

In a further advantageous embodiment, the fireplace also has a housing with at least one housing wall. A feed opening with a door for releasing or closing the feed opening is provided in this housing wall. This feed opening is preferably provided in a region of a recess of the above-mentioned casing, within which the hearth is integrated.

This door preferably has an at least partially transparent element and in particular an at least partially transparent glass element. This housing preferably forms a combustion chamber.

The above-mentioned storage container for the material to be burned and in particular for the pellets is preferably provided below this combustion chamber. In addition, an effect body can be arranged inside the combustion chamber. This effect body fulfills the purpose of enhancing the visual impression of a fire in the combustion chamber. This effect body can be spherical and preferably consists of a fireproof material. This effect body is preferably arranged above the reservoir. The effect body can have a coated or a mechanically processed, for example a polished surface, in particular a highly reflective surface which enhances the optical impression.

Openings for supplying combustion air can be provided in the storage container and in particular in a base of the storage container. These openings are preferably in flow connection with fresh air supply lines of the jacket in which the entire fireplace is arranged, so that said supply openings are also part of the above-mentioned LAS chimney.

A wall of the housing of the fireplace located adjacent to the reservoir preferably also has passage openings which are suitable and intended for the passage of fresh air. At least one duct for conducting fresh air is preferably formed between the fireplace and the top of the chimney

The device preferably has an adjusting device and in particular a manually adjustable adjusting device for the combustion air. This advantageously allows a stepless adjustment of the supply of combustion air.

In a further preferred embodiment, the chimney device and the fireplace are designed in such a way that the combustion air can be supplied to the storage container at least partially and preferably completely from below. A collecting device for collecting combustion residues is preferably provided below the storage container.

The storage container for the fuel granules is preferably covered by a screen with at least one passage through which the flames and/or fuel gases are conducted into the combustion chamber. The through-hole can extend horizontally and vertically and serve to optimize the burn-up or to influence the flame pattern.

For example, secondary air can be prevented from entering the reservoir. For example, the screen can be disk-shaped or ring-shaped, with the passage opening being provided in the plane of the screen.

In cooperation with the effect body preferably provided in the combustion chamber, the screen placed on the reservoir serves to further adapt the flame pattern during burning of fuel granules to the classic flame pattern of firewood burning. The flame image can also appear optically enlarged when gripping around the effect body. At the same time, the splitting of the flames promotes the reaction of the combustion gases with the oxygen provided in the combustion chamber.

The specific design of a fireplace was, for example, in EP 3 404 323 described. The disclosure content of this disclosure is also explicitly made part of the disclosure content of the present application by reference. This relates in particular to the description of the figures in this publication and in particular to paragraphs [0021] - [0034] of the description there.

Fig. 1

eine Frontansicht einer erfindungsgemäßen Heizanordnung;

Fig. 2a, 2b

weitere Ansichten der in Figur 1 gezeigten Heizanordnung;

Fig. 3

eine perspektivische Ansicht der Heizanordnung;

Fig. 4a, 4b

zwei Schnittdarstellungen der in Figur 1 gezeigten Heizanordnung;

Fig. 5a, 5b

zwei weitere Schnittdarstellungen der Heizanordnungen;

Fig. 6

eine Schnittdarstellung eines Mantels für eine erfindungsgemäße Heizanordnung;

Fig. 7

eine perspektivische Darstellung des Mantels für die Heizanordnung;

Fig. 8a - 8c

drei Darstellungen zur strömungstechnischen Anbindung der Feuerstätte in einer ersten Ausgestaltung; und

Fig. 9a - 9c

drei Darstellungen zur strömungstechnischen Anbindung der Feuerstätte in einer zweiten Ausgestaltung.

Further advantages and embodiments result from the attached drawings:
Show in it:

1

a front view of a heating arrangement according to the invention;

Figures 2a, 2b

more views of the in figure 1 shown heating arrangement;

3

a perspective view of the heating assembly;

Figures 4a, 4b

two sectional views of the in figure 1 shown heating arrangement;

Figures 5a, 5b

two further sectional views of the heating arrangements;

6

a sectional view of a jacket for a heating arrangement according to the invention;

Figure 7

a perspective view of the jacket for the heater assembly;

Figures 8a - 8c

three representations of the fluidic connection of the fireplace in a first embodiment; and

Figures 9a - 9c

three representations of the fluidic connection of the fireplace in a second embodiment.

figure 1 shows a front view of a heating arrangement 1 according to the invention. This heating device 2 has a combustion chamber 22 . An effect body 24 is arranged within this combustion chamber 22 . The reference number 26 designates an aperture area and the reference number 28 an additional aperture area. Numeral 32 designates a connecting pipe which is in fluid communication with a (in figure 1 not shown) outlet of the chimney 4 is available to discharge flue gases.

The reference numerals 12 and 14 identify two openings, which are provided here with grids, through which the convection air can exit. It can be seen that the fireplace or the heating device 2 is fully integrated into the heating arrangement and is in particular designed together with the chimney 4 .

The heating device has an overall length or overall height hH which is between 1300 mm and 1700 mm, preferably between 1400 mm and 1600 mm and particularly preferably between 1450 mm and 1550 mm. The actual fireplace 22 has a length hF of between 400 mm and 800 mm, preferably between 500 mm and 700 mm and particularly preferably between 600 mm and 700 mm. The area above the fireplace 22 has a length h1 which is between 100 mm and 300 mm, preferably between 160 mm and 260 mm and particularly preferably between 200 mm and 250 mm. The area h2 below the fireplace has a length of between 300 mm and 700 mm, preferably between 400 mm and 600 mm and particularly preferably between 460 mm and 560 mm.

the Figures 2a and 2b show side views of the in figure 1 fireplace shown. It can be seen that the fireplace has an external width bH of between 300 mm and 400 mm. An inner width bHi is preferably between 260 mm and 340 mm.

Figure 2b shows a top view of the heating arrangement 1. The reference number 32 refers to a duct for discharging the flue gases and the reference number 34 to a further opening through which fresh air can be supplied to the combustion device. Numeral 16 designates an actuator for supplying room air to the heating arrangement.

figure 3 shows a perspective view of the heating arrangement 1. It can be seen that the fireplace has a smaller cross-section than the chimney itself. This can extend over more than half the width B or depth T of the chimney, preferably more than 60 % of the width and the height of the chimney.

Figure 4a Figure 12 shows a sectional view of a jacket 20 of the heater assembly. It can be seen that the recess 15 into which the actual fireplace (not shown) is inserted has a smaller width than the casing device 20 itself.

Numeral 42 denotes an exhaust pipe for exhausting flue gases. This tube is formed inside the shell 20 . Numeral 43 designates a supply pipe for supplying fresh air.

the Figures 5a and 5b show two further representations of the casing device 20. One can see here in FIG Figure 5b shown representations the wall sections 4a, 4b, 4c, 4d which form the recess into which the fireplace is used. The reference numerals 4c and 4d show two wall sections, which are used to hold the fireplace and also for anchoring.

figure 6 shows a further sectional view of the casing device 20. Here, too, the holding sections are provided again, which hold the fireplace. Numeral 46 denotes a rear wall portion of the jacket assembly 20 and reference numeral 44 denotes a front portion of the jacket assembly.

figure 7 shows a perspective view of the casing device 20. Here again the recess 15 can be seen, which is used to accommodate the fireplace, as well as the recesses 12, 14, which are used for the exit of heated air.

the Figures 8a - 8c show three views of the connection of the fireplace to the shell 20 or an outer shell 52 in a first embodiment. In this embodiment, the exhaust pipe 42 is followed by a line 56 within the casing 20 or within the outer casing.

In this case, this line preferably has an insulation or insulation device 58 .

Reference number 54 designates a line which is used to supply fresh air to the fireplace. This line is in fluid communication with the feed tube. At the in the Figures 8a - 8c shown embodiment, this line is formed as an air gap surrounding the line 56, ie the line 56 is arranged within the line 54 here.

At the in the Figures 9a - 9c shown embodiment, the line 54 runs parallel to the line 56 and is also spaced from this and in particular separated by material of the jacket.

The applicant reserves the right to claim all features disclosed in the application documents as essential to the invention, provided they are new compared to the prior art, either individually or in combination. It is also pointed out that the individual figures also describe features which can be advantageous in and of themselves. The person skilled in the art recognizes immediately that a specific feature described in a figure can also be advantageous without adopting further features from this figure. Furthermore, the person skilled in the art recognizes that advantages can also result from a combination of several features shown in individual figures or in different figures.

Claims (13)

Heating arrangement (1) for heating buildings with a first heating device (2) which has a fireplace (22) and at least one device for smoke removal, and a chimney (4) which is in flow connection with the fireplace (22) in an operating state to discharge the smoke and with a connecting line which is at least partially connected to the fireplace in order to supply air to the fireplace (22), the fireplace (22) and the chimney (4) being designed as a structural unit and the fireplace (22 ) is suitable and intended for burning pellets,
characterized in that
the fireplace (22) can be operated without current. Heating arrangement (1) according to claim 1,
characterized in that
the device has a discharge device (12, 14) for discharging convection air. Heating arrangement (1) according to at least one of the preceding claims,
characterized in that
the heating arrangement (1) has a control device, in particular a manually operable control device, in order to control the quantity of air supplied for the combustion. Heating arrangement (1) according to at least one of the preceding claims,
characterized in that
the heating assembly (1) comprises a fireplace closing door having a first segment and a second segment which are angled with respect to each other. Heating arrangement (1) according to at least one of the preceding claims,
characterized in that
the fireplace (22) has a height that is greater than 300 mm, preferably greater than 400 mm, preferably greater than 500 mm and/or the fireplace (22) has a height that is less than 1200 mm, preferably less than 1000 m, preferably less than 800 mm. Heating arrangement (1) according to at least one of the preceding claims,
characterized in that
has a removable container suitable and intended for containing pellets. Heating arrangement (1) according to at least one of the preceding claims,
characterized in that
the fireplace is integrated in a recess (40) of the heating arrangement (1), which extends both in the longitudinal direction (L) and in the width direction (B) and in a depth direction of the heating arrangement, the fireplace being both in the longitudinal direction (L) is shorter than the heater assembly (1) in both the width direction (B) and the depth direction (T). Heating arrangement (1) according to at least one of the preceding claims,
characterized in that
the fireplace has a casing (20) which forms a recess (40) for receiving the fireplace (22). Heating arrangement (1) according to the preceding claim,
characterized in that
the jacket (20) has at least one and preferably at least two ventilation openings (12, 14). Heating arrangement (1) according to at least one of the preceding claims,
characterized in that
the heating arrangement (1) has a LAS chimney (4). Heating arrangement (1) according to at least one of the preceding claims,
characterized in that
the casing (20) has a rectangular profile at least in sections. Heating arrangement (1) according to at least one of the preceding claims 8 - 11,
characterized in that
the shell (1) has at least one duct for discharging exhaust gases and/or that the shell (1) has at least one duct for supplying fresh air to the fireplace. Heating arrangement (1) according to the preceding claim,
characterized in that
the duct arranged in the shell for supplying fresh air runs parallel to the duct for discharging exhaust gases and at a distance therefrom or that the duct arranged in the shell for supplying fresh air at least partially and preferably completely surrounds the duct for discharging exhaust gases.

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