EP2065646A1 - Stove or fireplace insert and door with brush seal - Google Patents

Abstract

The installation has a combustion chamber (1), and a sealing device for sealing the chamber against a housing space (2), where the sealing device is provided with a brush seal (6) that includes bristles. A combustion chamber door (3) e.g. sliding window, is laterally movable parallel to a door plane and is sealed by the brush seal. The bristles of the brush seal is arranged parallel or perpendicular to a plane of the combustion chamber door along a section of the brush seal, where the bristles are made of fire-resistant material such as glass fiber or ceramic fiber. An independent claim is also included for a method for manufacturing a chimney stove or chimney installation.

Description

Technical area

The invention relates to fireplace ovens and fireplace inserts and fire doors for fireplace ovens and inserts, especially on the sealing of the firebox of a fireplace stove or insert to the outside. It relates to devices, uses and methods according to the preamble of the independent claims. Fireplace stoves, also known as so-called Swedish stoves, are freestanding, whereas fireplace stovetails are installable, typically in the masonry of a home. The firebox of a fireplace stove or insert can be made accessible, for example, by pushing up or by pivoting the firebox door.

State of the art

It is known to provide the furnace door of a fire stove or insert with a circumferential, forming a bead seal, which in the closed state against the firebox door frame is pressed and thus seals the firebox of the fireplace or stove against the outside. Such a seal may be formed, for example, as a hollow gasket, which externally comprises a tube forming ceramic glass fiber fabric, which is possibly reinforced inside by a metal wire fabric forming a tube, or it may be formed as a full circular seal by a correspondingly shaped Ceramic fiberglass fabric is formed.

The inventor has discovered that such seals often suffer damage, such as dragging the seal along the furnace door frame as the furnace door closes, causing bumps on the furnace door frame, such as weld beads, holes or cracks in the seal.

In order to prevent the leaks caused by such damage to the seal, it is advantageous, particularly in view of the growing importance of energy efficiency and ecology, to provide an alternative, in particular improved sealing system for fireplace ovens and inserts.

Presentation of the invention

An object of the invention is to provide an alternative sealing system, in particular such which does not have the above-mentioned disadvantages. In particular, a corresponding fireplace stove or insert, a furnace door for a fireplace or fireplace insert and a method for producing a fireplace or fireplace insert or a furnace door for a fireplace or use to be created. Furthermore, the use of a brush seal for sealing the combustion chamber of a fireplace stove or insert is claimed against the outside.

This object is achieved by devices, methods and uses with the features of the independent claims.

The fireplace stove or insert with a furnace and a sealing device for sealing the furnace to the outside is characterized in that the sealing device has a brush seal. For example, sealing the combustion chamber to the outside means sealing the combustion chamber against the living space in which the fireplace stove or insert is located. Thereby, a good sealing effect can be achieved, which remains substantially unchanged over a long time, because the seal is not prone to the mechanical stresses typically occurring. In particular, the seal is insensitive to sliding movements along uneven surfaces, such as may occur when opening or closing the firebox door in connection with bumps on the firebox door frame.

In one embodiment, the fireplace stove or insert has a movable firebox door, and the Brush seal is arranged so that it serves the seal of the furnace door. In practice, in particular with such an arrangement of a seal increased problems occur, so that the invention can act here particularly advantageous. Preferably, the brush seal is arranged at least in part on the firebox door, but it can also be arranged completely on the firebox door frame. The firebox door may for example be a window, in particular a sliding window.

In one embodiment, the furnace door is slidably movable parallel to its door plane. The firebox door can also be moved differently between the open and closed positions. For example, the firebox door can also be parallel-displaceable along an angle to the door plane, in particular acute-angled direction between the open and closed position.

In one embodiment, the bristles of the brush are disposed at least along a portion of the brush seal substantially parallel to the plane of the furnace door.

In one embodiment, the bristles of the brush are disposed at least along a portion of the brush seal substantially perpendicular to the plane of the furnace door. As a result, it is possible, for example, to dispense with a sealing edge (of the firebox door frame) on the firebox floor level, whereby the fireplace stove or insert is easier to clean.

In one embodiment, the brush seal is at least partially disposed on the firebox door. As a result, the brush seal is better protected against damage.

In an embodiment, the brush seal comprises a plurality of bristles of a fire-resistant material. Advantageously, the bristles are heat-resistant or inert to at least 600 ° C, in particular up to at least 700 ° C.

In one embodiment, the bristles are formed by fibers. It is possible to form the fibers in a loop shape. In this case, the loops are preferably oriented so that the direction of movement of the furnace door is substantially parallel to the plane in which the loops lie. In general, however, fiber ends are used as bristles. The bristles of the brush seal are formed rod-shaped in this case.

In one embodiment, the brush seal includes a plurality of bundles of fibers, particularly a plurality of interwoven bundles of fibers.

In one embodiment, the brush seal comprises a plurality of glass fiber bristles or ceramic fiber bristles. It has been found that it is possible with such fibers at the same time to achieve sufficient tightness and sufficient flexibility and sufficient fire resistance of the seal.

In one embodiment, the brush seal has a plurality of thin bristles.

In one embodiment, the brush seal has a plurality of bristles, the thickness of which is typically between 1 μm and 10 μm. Glass or ceramic fibers of ≥ 3 μm, in particular 3 μm to 5 μm, meet the requirements particularly well.

In one embodiment, the brush seal has a sealing part and a holding part, the brush seal having a plurality of fibers.

In one embodiment, the two end portions of the fibers belong to the sealing portion of the brush seal, and the fibers are held in the holding portion of the brush seal.

In one embodiment, the holding part of the holder of the brush seal is used.

In one embodiment, the length of the sealing part is 2 mm to 30 mm, in particular 5 mm to 15 mm.

Brush seals may have (for example, thicknesses between 0.2 mm and 10 mm or even more, in particular between 1 mm and 4 mm (at the sealing part).

The brush seal is generally formed substantially band-shaped.

The furnace door for a fireplace stove or insert has a receptacle for receiving a brush seal.

In one embodiment, the furnace door has a brush seal, in particular a brush seal as described above.

The method of making a fireplace oven or insert or furnace door for a fireplace or oven is characterized by the provision of a brush seal to seal the furnace of the furnace or furnace. In particular, the provision of a brush seal as described above.

Further embodiments and advantages will become apparent from the dependent claims and the figures.

Brief description of the drawings

Fig. 1

ein Detail eines Cheminéeofens oder -einsatzes, geschnitten;

Fig. 2

eine in einer Halteschiene gehalterte Bürstendichtung, geschnitten;

Fig. 3

eine Detailansicht einer Bürstendichtung, perspektivisch;

Fig. 4

eine Detailansicht einer Bürstendichtung, in Aufsicht.

In the following the subject invention will be explained in more detail with reference to embodiments and the accompanying drawings. It show, partly schematically:

Fig. 1

a detail of a fireplace stove or insert, cut;

Fig. 2

a brush seal held in a retainer rail, cut;

Fig. 3

a detailed view of a brush seal, in perspective;

Fig. 4

a detailed view of a brush seal, in supervision.

For the understanding of the invention non-essential parts are not shown in part. The described embodiments are exemplary of the subject invention and have no limiting effect.

Ways to carry out the invention

Fig. 1 shows a detail of a fireplace stove or insert in cross-section. On the right is the firebox 1 of the fireplace or stove, on the left the living room 2, in which the fireplace or the fireplace insert is installed. Firebox 1 and living space 2 are separated by a firebox door 3. The furnace door 3 is a glass door with a refractory glass 4, which is supported by a window frame 5. To seal the combustion chamber 1 against the outside, a brush seal 6 cooperates with a furnace door frame 7. The brush seal 6 is held in a retaining rail 8 supported on the window frame 5.

The furnace door 3 may for example be a sliding door which is displaceable to open in the direction of A1 or in the direction A2 to its door level, or a swinging door which is pivotable about an axis parallel to the direction A1 to open in the direction S, or one for opening along a direction of the door plane angled direction V is parallel displaced.

The bristles of the brush seal 6 can, as in Fig.1 shown to be oriented predominantly perpendicular to the door plane. In this case, the furnace door frame 7 advantageously has a bent plate 7a, at least if the furnace door 3 is movable along the direction A1 Sliding door is. Since the access to the combustion chamber 1 is made difficult by such a plate 7a, it may be advantageous to omit this and, in order to achieve the sealing effect, install the brush seal 6 in such a way that the bristles are rotated by 90 ° in the clockwise direction (cf. Fig.2 ), so that the brush seal 6 sealingly cooperates with sheet 7b (in Fig. 1 not shown). This way of installing the brush seal 6 is compatible with the above-mentioned types of variously movable furnace doors. Possibly. the disc frame 5 must be designed to hold the brush seal 6 slightly different than in Fig. 1 shown.

Typically, the brush seal is provided only at the firebox door. In principle, however, the brush seal can also be provided wholly or partly on the firebox door frame 7.

It is possible to provide a brush seal only at individual sections to be sealed, but typically all four sides of a firebox door are sealed by a brush seal. In this case, for example, in the case of a sliding door which can be opened in the direction A1, the lower (and possibly also the upper) side by a brush seal with approximately parallel to the door plane aligned bristles, for the other sides but a brush seal with approximately perpendicular to the door plane aligned bristles be used.

Fig. 2 shows cut a held in a support rail 8 brush seal 6. The brush seal 6 can For example, be pressed into a holding rail 8 forming metal, in particular steel profile.

Fig. 3 shows a detailed view of a brush seal 6, which can be used for example in the embodiments described above. The brush seal 6 has a holding part approximately indicated by 6a and a sealing part indicated approximately by 6b.

The sealing part can, as in Figs. 2 and 3 shown to be clamped in a clamping device 9, which is formed for example by a corresponding metal profile. The sealing part 6b has a length L of typically between 8 and 15 mm, for example about 10 mm.

To produce the brush seal, glass or ceramic fibers, in particular combined into fiber bundles, can be bent over in the region of the holding part 6a so that their end regions form the sealing part 6b.

Fig. 4 schematically shows a detail of a brush seal 6, for example, such as in Fig. 3 provided with the clamping device 9 is shown. The fiber bundles 6c shown in black are interwoven in the holding area 6a with fiber bundles or threads shown in white. A secure attachment of the fiber bundles 6c and a good sealing function of the brush seal 6 can be achieved in this way.

Claims (13)

Cheminéeofen or use with a furnace (1) and a sealing device for sealing the furnace (1) from the outside (2), characterized in that the sealing device comprises a brush seal (6). Chimney oven or insert according to claim 1, comprising a movable firebox door (3), characterized in that the brush seal (6) is arranged such that it serves the seal of the firebox door (3). Chimney oven or insert according to claim 2, wherein the firebox door (3) is movable in a sliding manner parallel to its door plane. A fireplace oven or insert according to claim 2 or claim 3, wherein the bristles of the brush are arranged at least along a portion of the brush seal (6) substantially parallel to the plane of the furnace door (3). Chimney oven or insert according to one of claims 2 to 4, wherein the bristles of the brush at least along a portion of the brush seal (6) in are arranged substantially perpendicular to the plane of the furnace door (3). Chimney oven or insert according to one of the preceding claims, characterized in that the brush seal (6) has a plurality of bristles of a fire-resistant material. Chimney oven or insert according to one of the preceding claims, characterized in that the brush seal (6) comprises a plurality of Glasfaserborsten or Keramikfaserborsten. Cheminéeofen or use according to one of the preceding claims, characterized in that the brush seal (6) has a plurality of bristles of a thickness between 0.5 .mu.m and 20 .mu.m, in particular between 3 .mu.m and 10 .mu.m. A fireplace oven or insert according to any one of the preceding claims, wherein the brush seal (6) has a sealing part (6b) and a holding part (6a), and wherein the brush seal (6) has a plurality of fibers whose two end portions are to the sealing part (6b) of the brush seal, and wherein the fibers are held in the holding portion (6a) of the brush seal. Furnace door for a fireplace or a fireplace use, characterized in that it has a receptacle for receiving a brush seal. A firebox door according to claim 10, characterized in that it comprises a brush seal (6). Use of a brush seal for sealing the combustion chamber (1) of a fire-place furnace or insert to the outside (2). Process for the production of a fireplace furnace or insert or a furnace door (3) for a fireplace stove or insert, characterized by the provision of a brush seal (6) for sealing the combustion chamber (1) of the fireplace stove.

Images