EP3620717A1 - Furnace module for building - Google Patents

Abstract

Oven module (1) for buildings, comprising a fireplace (2) with a flue gas outlet (3) and a smoke exhaust (4) which is connected to the flue gas outlet (3), the fireplace (2) and the flue gas outlet (3) in one Furnace casing (5) are integrated, the smoke exhaust (4) inside the casing (5) from the connection with the flue gas outlet (3) at least down to the fireplace (2) and arranged next to the fireplace (2).

Description

The invention relates to a stove module for buildings, comprising a fireplace with a flue gas outlet and a smoke exhaust that is connected to the flue gas outlet, wherein the fireplace and the flue gas outlet are integrated in a furnace casing.

Oven modules are installed in buildings and, in addition to their function as a heat source, often act as a design element in living rooms. Such oven modules are mostly referred to as Swedish ovens. Oven modules are usually connected to a chimney or chimney integrated in a building, which removes the flue gases generated during combustion. Alternatively, modern stove modules offer the option of being connected to a so-called air-flue gas fireplace system (LAS chimney), in which case fresh air is also supplied to a fireplace in the stove module via supply air ducts of the fireplace system. Such supply air shafts are particularly useful in very airtight buildings, such as passive house buildings, so that the indoor air is not used to burn the fuels. The fireplace can be, for example, a device for burning solid fuels such as wood, wood pellets, wood chips and the like. Alternatively, fireplaces for liquid or gaseous fuels can also be provided.

When using conventional stove modules, there is a need to first install a chimney or chimney in a building. A furnace or furnace module must then be installed on this - possibly with considerable effort - and connected to the chimney.

The EP 1 437 550 B1 discloses a device for operating a domestic fireplace according to the prior art. In this known solution, the fireplace is integrated directly into a chimney. The chimney can be used as a prefabricated component in prefabricated houses, where it can be installed over the roof using a crane, for example. This eliminates the need to connect a stove to the chimney afterwards. In addition, the integration of the fireplace in the chimney shaft creates a particularly space-saving stove. A disadvantage of this prior art, however, is that only small fireplaces can be provided by this integration, since their size is limited by the cross section of the chimney shaft. This limits the maximum power of the furnace and cannot be scaled arbitrarily. Another disadvantage is the construction of the EP 1 437 550 B1 disclosed linear arrangement of fireplace and Removal of the flue gas, since burning residues fall from the chimney into the fireplace, contaminate it and can only be disposed of via an access to the fireplace itself. With this disadvantageous arrangement, condensation water that forms in the chimney or rainwater that penetrates from the outside also gets directly into the fireplace.

Another disadvantage of prior art oven modules is that when using multiple oven modules in a building, each oven module must be connected separately to a chimney. This increases the space requirements and the installation costs for the furnace modules, since this often requires the laying of complex pipes for smoke extraction. Alternatively, with several oven modules, a separate chimney must be provided for each oven module, which reduces the living space available in a building and increases the construction costs of the building.

It is the object of the present invention to provide an oven module which overcomes the disadvantages of the prior art.

According to the invention, this object is achieved in that the smoke outlet within the furnace casing is led down from the connection to the flue gas outlet at least to the fireplace and is arranged next to the fireplace.

The stove module for buildings according to the invention comprises a fireplace with a flue gas outlet and a smoke vent. The smoke exhaust is connected to the smoke outlet. The fireplace and the flue gas outlet are integrated in an oven casing. The smoke outlet is guided within the furnace casing from the connection to the flue gas outlet at least down to the fireplace and is arranged next to the fireplace. In this way, the advantage is achieved that by guiding the smoke exhaust inside the furnace casing, the smoke extraction is available for connection to a further furnace module. As a result, the furnace module can be connected to a further furnace module, as a result of which no additional chimney has to be provided in the building, and a space-saving possibility for flue gas discharge for the additional furnace module is created. This also allows multiple occupancy of a chimney within the same floor of a building. Thus, both the chimney and the fireplace with chimney as a prefabricated component, in particular in prefabricated houses, can be used and installed there, for example by means of a lifting device over the roof, or the furnace module can be assembled on site using a lifting truck. The furnace casing can have different dimensions than the chimney and in particular be larger, which is why arbitrarily large fireplaces such as for tiled stoves, basic stoves, cooking stoves, heat-through stoves, combi stoves, warm air stoves, heating chimneys, heating inserts, open heating chimneys, whole house heating systems, and combi stoves with air-water heat exchangers can be used. At the same time, the stove module is also compatible with different fireplace systems from different manufacturers and can be set up with it. The chimney can also be built as a prefabricated component or in prefabricated individual parts.

According to a preferred embodiment, the smoke exhaust has a soot bag at its lower end. This has the advantage that burning residues, such as slag and soot deposits, can be removed from the smoke exhaust via the soot bag, thereby avoiding laborious manual cleaning of the smoke exhaust.

The smoke exhaust is preferably guided past the fireplace to the bottom surface of the furnace module. This has the advantage that more connection positions can be provided for the connection of further furnace modules.

According to an alternative embodiment variant of the furnace module according to the invention, the smoke exhaust is guided further down from the bottom surface of the furnace module. This offers, for example, the possibility of providing an access opening for removing the soot bag in a basement or a technical room in the building. In addition, one or more further oven modules can also be connected to the smoke exhaust of the oven module according to the invention on a floor below the oven module.

The smoke exhaust preferably has at least one cleaning door. This has the advantage of providing access to the smoke exhaust for service and cleaning work.

According to a preferred embodiment, the fireplace is equipped with a combustion air supply. When the combustion air supply is connected to a supply of outside air, it can be avoided that indoor air is used for the combustion. In addition, the combustion air supply offers the possibility of implementing a control of the oxygen supply to the fireplace.

The smoke exhaust is preferably equipped with at least one connection for a further oven. This has the advantage that a quick connection possibility is created for the connection of further furnaces or furnace modules without additional work on the furnace module according to the invention being necessary.

According to the preferred embodiment of the furnace module according to the invention, a connection piece is provided for connecting the smoke exhaust to the smoke gas outlet, into which both the smoke exhaust and the smoke gas outlet open obliquely upwards. This has the advantage that a particularly space-saving and also flow-favorable arrangement of the flue gas outlet and the smoke exhaust in the furnace jacket is achieved.

A flue gas duct or a heat accumulator through which the flue gas can flow is preferably provided between the fireplace and the flue gas outlet, the flue gas duct or the heat accumulator being arranged within the casing. This offers the possibility to use the furnace module for hot water preparation or as a central heating system, or to increase the efficiency of the furnace module.

• Figur 1 zeigt ein erfindungsgemäßes Ofenmodul in einer schematischen Darstellung.
• Figur 2 zeigt eine alternative Ausführungsvariante des erfindungsgemäßen Ofenmoduls.

Advantageous embodiments of the furnace module according to the invention are explained in more detail below with reference to the figures.

• Figure 1 shows a furnace module according to the invention in a schematic representation.
• Figure 2 shows an alternative embodiment of the furnace module according to the invention.

Figure 1 shows a furnace module 1 according to the invention in a schematic representation from the side, with a fireplace 2, a flue gas outlet 3 and a smoke outlet 4. The fireplace 2 comprises the flue gas outlet 3, which is connected to the smoke outlet 4. The fireplace 2 and the flue gas outlet 3 are integrated in an oven casing 5. The smoke vent 4 is guided within the furnace casing 5 from the connection to the flue gas outlet 3 at least down to the fireplace 2 and is arranged next to the fireplace 2. As a result, the flue gas outlet 3 is in the in Figure 1 shown preferred embodiment of the furnace module 1 according to the invention essentially completely enclosed by the furnace casing 5. This achieves the advantage that the furnace module 1 is designed to be particularly space-saving and that no tubes emerge from the furnace casing 5, which could negatively influence the visual appearance of the furnace module 1. The smoke exhaust 4 of the furnace module 1 can be made in ceramic as well as in metal or other refractory materials.

The smoke exhaust 4 preferably has a soot bag at its lower end, which is not shown in the figures. Combustion residues such as soot deposits automatically collect in the soot bag as soon as they detach from the smoke vent 4. This ensures a particularly simple and convenient disposal of combustion residues from the smoke exhaust 4.

According to an alternative embodiment variant of the oven module 1 according to the invention, the smoke exhaust 4 is guided past the fireplace 2 down to the bottom surface 6 of the oven module 1. This offers the advantage that a particularly large number of connection options for further ovens or oven modules 1 can be provided on the smoke exhaust 4.

Figure 2 shows the furnace module 1 according to the invention in accordance with a further alternative embodiment variant, the smoke exhaust 4 being guided further downward from the bottom surface 6 of the furnace module 1. As a result, the smoke exhaust 4 can also be used in a storey located below the furnace module 1. For example, a central heating system installed in a basement could be connected to the smoke exhaust 4 of the oven module 1 according to the invention.

The smoke exhaust preferably comprises 4, as in FIG Figure 2 shown, at least one cleaning door 7, which can be used to carry out cleaning and service work. In addition, the fireplace 2 in the preferred embodiment of the furnace module 1 according to the invention has a combustion air supply 8. The combustion air supply 8 can be supplied with room air, for example, or can be connected to a supply air shaft of a fireplace system. This has the advantage that a particularly clean and controlled combustion is achieved.

As shown in the figures, the smoke exhaust 4 preferably has at least one connection 9 for a further furnace or a further furnace module 1. This connection 9 can be provided, for example, over the area of the fireplace 2 of the furnace module 1 on an outer wall of the furnace casing 5, or in the case of a furnace module 1 according to the in FIG Figure 2 shown embodiment variant in a floor lying below the furnace module 1. As a result, the furnace module 1 according to the invention offers a large number of connection options for further furnaces or furnace modules 1 without additional modifications to the furnace module 1 according to the invention having to be carried out. This eliminates the need to provide additional smoke traps or complex pipes in a building in order to discharge flue gas from further furnace modules 1.

As shown in the figures, a connecting piece 10 is provided for connecting the smoke exhaust 4 to the smoke gas outlet 3. The smoke gas outlet 3 and the smoke exhaust 4 both open, preferably at an angle upwards, into the connecting piece 10.

The connecting piece 10 also preferably has a coupling piece 11 for a chimney or a chimney 12, as a result of which the furnace module 1 according to the invention can be connected to an existing chimney 12 of a building.

According to the preferred embodiment of the furnace module 1 according to the invention, there is a flue gas duct or a heat accumulator 13 through which the flue gas can flow, between the fireplace 2 and the flue gas outlet 3. The flue gas duct or the heat accumulator 13 are arranged inside the furnace casing 5.

Claims (9)

Oven module (1) for buildings, comprising a fireplace (2) with a flue gas outlet (3) and a smoke exhaust (4) which is connected to the flue gas outlet (3), the fireplace (2) and the flue gas outlet (3) in one Furnace casing (5) are integrated, characterized in that the smoke exhaust (4) within the furnace casing (5) from the connection with the flue gas outlet (3) is led down at least to the fireplace (2) and is arranged next to the fireplace (2) . Oven module (1) according to claim 1, characterized in that the smoke exhaust (4) has a soot bag at its lower end. Furnace module (1) according to claim 1, that the smoke exhaust (4) past the fireplace (2) to the bottom surface (6) of the furnace module (1) is led down. Oven module (1) according to claim 3, characterized in that the smoke exhaust (4) from the bottom surface (6) of the oven module (1) is guided downwards. Oven module (1) according to one of the preceding claims, characterized in that the smoke exhaust (4) has at least one cleaning door (7). Oven module (1) according to one of the preceding claims, characterized in that the fireplace (2) is equipped with a combustion air supply (8). Oven module (1) according to one of the preceding claims, characterized in that the smoke exhaust (4) is equipped with at least one connection (9) for a further oven. Oven module (1) according to one of the preceding claims, characterized in that a connecting piece (10) is provided for connecting the smoke exhaust (4) to the smoke outlet (3), into which both the smoke outlet (4) and the smoke outlet (3) open diagonally upwards. Oven module (1) according to one of the preceding claims, characterized in that a flue gas duct or a heat accumulator (13) through which the flue gas can flow is provided between the fireplace (2) and the flue gas outlet (13), the flue gas duct or the heat accumulator (13 ) is arranged inside the furnace casing (5).

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