Device for operating a fireplace for domestic use

Abstract

Device (1) for operating a domestic fireplace with a fireplace (2) which has at least one smoke extraction device (34), with a chimney (4) which is in flow connection with the fireplace (2) in order to extract the smoke in an operating state, and with a connecting pipe which is at least partially connected to the fireplace to supply air to the fireplace (2), and with a firebox door (6) which is pivotable about a predetermined pivot axis (S) for opening and closing a combustion chamber (B). According to the invention, the firebox door (6) has a first section (66) and a second section (68), which are angled relative to each other.

Description

[0001] The present invention relates to a device for operating a fireplace for domestic use. Such devices have been known in the art for a long time. For some time now, fireplaces have also been known that are directly integrated into a chimney and can, for example, be installed together with the chimney in houses. These devices function satisfactorily. However, these devices are not yet easily adaptable to all spatial conditions and sometimes do not fully meet customer requirements.

[0002] For example, such fireplaces are known from US 5,553,604 A, FR 2 692 341 A1, EP 0 335 048 A1, DE 40 02 799 A1, FR 2 764 365 A1, EP 0 059 151 A1, EP 0 855 558 A2, EP 2 918 916 A1, DE 20 2017 103 005 U1 or EP 2 105 673 A1.

[0003] The present invention is therefore based on the objective of increasing the variability of such devices. According to the invention, this is achieved by a device according to the independent claim. Advantageous embodiments and further developments are the subject of the dependent claims.

[0004] An inventive device for operating a fireplace in domestic settings comprises a fireplace which includes at least one smoke extraction device. Furthermore, the fireplace is connected to a chimney for the purpose of extracting smoke during operation. A connecting pipe is also provided, which is at least partially connected to the fireplace to supply it with air. In addition, a firebox door is provided, which can be pivoted about a predetermined axis to open and close the combustion chamber.

[0005] According to the invention, the firebox door has a first section and a second section, which are angled relative to each other. As mentioned above, the components mentioned here, i.e., the fireplace, the chimney, and also the firebox door, are preferably designed as a module, and the entire device can be installed as a module, for example, in houses.

[0006] The term "angled" means that the first section extends in a first plane, which in an installed state is particularly vertical, and the second section extends in a plane angled to this, which is also preferably vertical.

[0007] Preferably, the vestibule door has a handle for opening and closing the firebox door. In a further advantageous embodiment, the device has a locking mechanism to keep the door closed. This locking mechanism can have interlocking locking elements to keep the firebox door closed. Preferably, an actuating element is provided for locking and / or unlocking the locking mechanism. This actuating element can also be the aforementioned handle, which can be movable and, in particular, pivotable relative to the respective section of the firebox door.

[0008] In a further advantageous embodiment, the device has a pivoting mechanism for pivoting the firebox door. Preferably, the first section is arranged on this pivoting mechanism, and the second section is in turn attached to the first section. In a further advantageous embodiment, the device has a lever for opening and closing. This lever can, for example, also be hinged to the second section, which is connected to the first section.

[0009] It is possible for this boom to be hinged at both the first and second sections. In a further advantageous embodiment, the boom comprises a first boom element and a second boom element, these two boom elements being pivotable relative to each other. Thus, the boom elements can, for example, be designed as plate-shaped bodies. These boom elements can be arranged one above the other and, for example, be moved both above and relative to each other.

[0010] In a further advantageous embodiment, the vestibule door has a spring mechanism that forces the firebox door, in particular, into a closed position. This spring mechanism can, for example, be designed as a coil spring arranged around a pivot shaft of the firebox door.

[0011] In a preferred embodiment, the fireplace is at least partially, and particularly preferably completely, enclosed by a housing. This housing may include, for example, shielding plates. The locking elements, which serve to keep the firebox door closed, could be arranged on this housing.

[0012] In a particularly preferred embodiment, the chimney has, in particular, a partition wall arranged above a cavity, which separates the cavity in which the fireplace is installed from an upper section of the chimney. This separation allows for particularly advantageous and simple manufacturability of the device.

[0013] In another advantageous embodiment, the cavity is provided with a lining that at least partially surrounds the fireplace.

[0014] In a further advantageous embodiment, ventilation grilles for air convection can be provided above and / or below the fireplace in this casing.

[0015] According to the invention, as mentioned above, the chimney and fireplace are designed as a prefabricated component and can be installed as such in a building. This prefabricated component is a single, integrated unit. In other words, the chimney and fireplace are designed as a single structural unit.

[0016] It would be possible to arrange additional accessories or components in a cavity above the fireplace, for example a pellet storage area and / or a hot water storage tank or a heat exchanger.

[0017] According to the invention, the first and second sections are angled relative to each other such that, with the firebox door open, the combustion chamber is accessible from at least two points. This means that, for example, a user can feed fuel such as firewood from two sides, and also via a corner section connecting these two sides. According to the invention, the firebox door can be opened to an angle greater than 50°, preferably greater than 60°, preferably greater than 70°, and particularly preferably greater than 80°. It can be seen that even at a pivot angle of 50°, at least one side of the fireplace is very easily accessible, for example, to feed in fuel or to remove combustion residues such as ash.

[0018] In a further advantageous embodiment, the first section and the second section are angled at an angle greater than 20°, preferably greater than 30°, preferably greater than 40°, preferably greater than 50°, particularly preferably greater than 60°, and particularly preferably greater than 70° and particularly preferably greater than 80°. This angle is defined such that at an angle of 0° the two sections lie in the same plane.

[0019] Furthermore, the first and second sections are angled at an angle less than 170°, preferably less than 150°, preferably less than 130°, preferably less than 120°, particularly preferably less than 110°, and particularly preferably less than 100°. These opening angles allow, in particular, sufficient opening of the access door and, on the other hand, ensure that the opened door does not unnecessarily damage surrounding structures such as walls.

[0020] According to the invention, the first section and the second section have similar dimensions. Specifically, the two dimensions or cross-sectional areas of the first section and the second section preferably differ from each other by no more than 60%, preferably by no more than 50%, preferably by no more than 40%, preferably by no more than 30%, and preferably by no more than 20%.

[0021] In a further advantageous embodiment, a viewing area is arranged in at least one section, through which the fireplace can be observed from the outside. This viewing area can be formed, in particular, by glass, glass-ceramic, or the like, which both allows for viewing and is appropriately fire-resistant. Preferably, a corresponding viewing area is arranged in both sections. In this way, the fireplace can be viewed from two different sides, and in particular from two mutually perpendicular directions.

[0022] In a further preferred embodiment, the fireplace is suitable and intended for burning wood and / or pellets. Preferably, the device includes a combustion residue removal device, in particular an ash disposal device. This can be an ash box known per se from the prior art, which is preferably arranged below the fireplace and can be pulled out of the device for emptying. Advantageously, this ash box can be pulled out in a direction perpendicular to one of the two surfaces of the fireplace that can be opened.

[0023] However, it is also conceivable that the device is suitable and intended for other fuels, such as oil, gas and the like.

[0024] In a further advantageous embodiment, the device has a baffle provided below the fireplace, in which, in particular, a grille for combustion air supply is arranged. Advantageously, the cross-sectional area of ​​the air passing through this grille can be varied.

[0025] In a further advantageous embodiment, a convection air outlet is also provided. This is located, in particular, above the fireplace and leads, especially, into a room to be heated. In a further advantageous embodiment, the combustion air outlet into the chimney is integrated. As mentioned above, at least one ventilation grille, and preferably several ventilation grilles, for air convection are preferably arranged in the casing above and / or below, and preferably above and below, the fireplace.

[0026] In a further advantageous embodiment, the chimney is a LAS chimney (air-exhaust system). In an air-exhaust system (also called an air-exhaust chimney (LAS)), the warm exhaust gases and the cool intake air of a heating system are preferably guided through two surface-connected, but preferably separate, pipes. In this way, residual heat can be extracted from the warm exhaust gases. This chimney can also have an additional air duct through which air for combustion can be supplied to the combustion chamber (at least partially, but possibly also exclusively).

[0027] According to the invention, the device includes a control unit for regulating the amount of air supplied for combustion. This control unit is a mechanically actuated control device, such as a mechanically actuated ventilation flap. For example, an operating lever for the combustion air supply can be provided.

[0028] In a further advantageous embodiment, the device can be operated with or without room air supply. In room air-independent operation, the combustion air is supplied or drawn in via the shaft and / or chimney. In room air-dependent operation, the combustion air is supplied and / or drawn in from the (interior) room. For example, an inlet opening can be provided below the fireplace to supply the combustion air from the room.

[0029] In another preferred embodiment, the combustion air can be supplied either via the shaft and / or chimney or to the combustion chamber. An actuating device can be provided to enable this selective supply of combustion air. This actuating device can, in particular, be mechanically operated. It would also be possible for the actuating device to allow a partial supply of room air and a partial supply of air from the shaft and / or chimney. In particular, the respective percentage proportions could be regulated and / or controlled.

[0030] Also disclosed is the operation of a fireplace for the domestic sector in particular, comprising a fireplace which has at least one device for smoke extraction, a chimney which is in flow connection with the fireplace in order to extract the smoke in an operating state, a connecting pipe which is at least partially connected with the fireplace in order to supply air to the fireplace, and a firebox door which is pivotable about a predetermined pivot axis for opening and closing a combustion chamber.

[0031] The firebox door has a first section and a second section, which are angled relative to each other. Operation can be carried out with all the features described above in connection with the device and / or the fireplace and / or, in particular, in connection with its operation, either individually or in combination. Furthermore, the fireplace (to be operated) can be equipped with all the features described above in connection with the device and / or the fireplace, either individually or in combination.

[0032] In an advantageous embodiment of the operation, the amount of air supplied for combustion is controlled.

[0033] In a further advantageous embodiment, the fireplace is operated in a room air-dependent and / or room air-independent manner.

[0034] In a further advantageous embodiment, the combustion air is optionally supplied via the shaft and / or chimney or the combustion chamber.

[0035] Further advantages and embodiments are shown in the accompanying drawings. These show: Fig. 1a, 1b Two side views of a device according to the invention; Fig. 2 A detailed view of the device shown in Fig. 1 device shown.

[0036] The Figures 1a and 1b Figure 1 shows two side views of a device 1 according to the invention for operating a fireplace. Reference numeral 2 refers to the actual fireplace, which is shown as in the figures. Figure 1 As shown in a and 1b, the insert is installed in the chimney 4. In this way, the entire device can be installed in buildings. This fireplace can, for example, be suitable and intended for holding firewood.

[0037] Reference symbol 6, in its entirety, depicts a firebox door which, as mentioned above, can be pivoted to open and close around an axis that runs vertically in this case. This firebox door has a first section 66 and a second section 68, which are angled at 90° to each other. Reference symbol 46 denotes a handle element with which firebox door 6 can be opened or pivoted. Reference symbol S in this context denotes... Fig. 1a The corresponding pivot axis around which the firebox door can pivot. The reference numeral 48 indicates a locking mechanism for locking the firebox door.

[0038] Reference symbol 26 indicates a first grille for drawing in convection air, and reference symbol 28 indicates a second grille through which, for example, convection air can be released. The firebox door 6 has a glass-ceramic door stop, allowing the user to see into the fireplace and, in particular, to observe the burning fire of wood or similar material.

[0039] Figure 2Figure 1 shows a detailed representation of the device according to the invention. Here, the fireplace 2 is again shown, more precisely the actual combustion chamber or firing chamber B, into which wood can be placed for burning. An ash collection device, such as an ash pan 14, is provided below the fireplace. Reference numeral 16 designates an operating element for a fire grate. The baffle 27 for the convection air is preferably also pivotable and particularly preferably pivotable about a vertical axis. Preferably, this baffle is pivotable about an axis that preferably runs parallel to the pivot axis about which the firebox door is pivotable. These geometric pivot axes can also coincide.

[0040] Reference numerals 42 and 44 denote two supports that can be pivoted relative to each other to hold the firebox door 6 during its pivoting motion. Reference numerals 67 and 69 denote viewing areas located in the respective sections 66 and 68 of the firebox door.

[0041] Reference numeral 72 designates a radiation shield and reference numeral 38 a further shield, which is preferably removable. The combustion air supply can be controlled by means of an operating lever 12.

[0042] Reference numeral 34 designates an exhaust gas outlet, and reference numeral 36 a combustion air outlet. Reference numeral 32 designates a trim frame. Reference numerals 62 and 64 designate frame elements of the firebox door 6. Reference symbol list

[0043] 1 Device 2 Fireplace 4 Chimney 6 Firebox door 12 Operating lever 14 Ash pan 16 Control element 26 Grate 27 Cover plate 28 Grate 32 Cover frame 34 Exhaust pipe 36 Air intake pipe 38 Additional cover plate 42, 44 Projection 46 Handle element 48 Locking mechanism 62, 64 Frame elements 66 First section of the firebox door 6 68 Second section of the firebox door 6 67, 69 Viewing areas 72 Shielding plate S Swing axis of the firebox door 6 B Combustion chamber

Claims

1. Apparatus (1) for operating a fireplace for domestic use, with a fireplace (2) which has at least one device (34) for smoke extraction, with a chimney (4) which is in flow connection with the fireplace (2) in order to extract the smoke in an operating state, and with a connecting line which is connected to the fireplace in order to supply air to the fireplace (2), and with a firebox door (6) which can be pivoted about a predetermined pivot axis (S) to open and close a combustion chamber (B), wherein the firebox door (6) has a first section (66) and a second section (68) which are angled relative to each other, and the first section (62) and the second section (64) are angled relative to each other in such a way that when the firebox door (6) is open, the combustion chamber (B) is accessible from at least two sides and also via a corner area connecting these two sides, so that the user can feed combustion material from two sides, wherein the firebox door (6) can be opened to an angle greater than 50° and the apparatus (1) has a control device (12) for controlling the amount of air supplied for combustion, wherein the control device is a mechanically operable control device and the first section (62) and the second section (64) are of similar size and the cross-sectional areas of the first section (62) and the second section (64) differ by no more than 60% from each other, characterized in that the fireplace (2) is designed together with the chimney (4) as a one-piece prefabricated component.

2. Apparatus (1) according to at least one of the preceding claims, characterized in that the first section (62) and the second section (64) are angled by an angle greater than 20°, preferably greater than 30°, preferably greater than 40°, preferably greater than 50°, particularly preferably greater than 60°, and particularly preferably greater than 70°, and particularly preferably greater than 80°, and / or that the first section (62) and the second section (64) are angled by an angle that is less than 100°.

3. Apparatus (1) according to at least one of the preceding claims, characterized in that at least one section (66, 68) has a viewing area (67, 69) through which the fireplace (2) can be observed from the outside.

4. Apparatus (1) according to at least one of the preceding claims, characterized in that the fireplace is suitable and intended for burning wood and / or pellets.

5. Apparatus (1) according to at least one of the preceding claims, characterized in that the apparatus (1) has a supply device for supplying convection air.

6. Apparatus (1) according to at least one of the preceding claims, characterized in that the apparatus (1) can be operated dependent on ambient air.

7. Apparatus (1) according to at least one of claims 1-5, characterized in that the apparatus (1) can be operated independently of ambient air.

8. Apparatus (1) according to at least one of the preceding claims, characterized in that the combustion air can be supplied either via the shaft and / or chimney or the combustion chamber.

Images