SK15642001A3 - Firing chamber, particularly of fire stoves or fireplace inserts - Google Patents

Abstract

The firing chamber, particularly of fire stoves or fireplace inserts, wherein the front and/or side surface of the wall (4) of the door (1) and/or the peripheral part of the fireplace firing chamber (6) is fitted with at least one dispersion chamber (2) fitted with the air inlet hole (7), wherein the dispersion chamber space (2) is filled with a porous dispersion material (3).

Description

Air ducts for heating installations

Technical field

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air guiding device for a heating device with a door having at least one glazed surface and an combustion chamber, in particular a fireplace stove and fireplace inserts.

BACKGROUND OF THE INVENTION

The simplest combustion chambers of fireplace inserts and stoves do not solve the problem of glazing of glazed surfaces. This causes very rapid soiling with the formation of soot on the glazed surfaces and hence a deterioration in the visibility of the fire in the combustion chamber. Another known solution is the fitting of heating devices with specially treated glass having a layer of catalysed material deposited on the surface. This substance only accelerates the self-cleaning of the glass, but does not solve the deposition of soot on glass surfaces. The main disadvantage of this solution is especially in the high price of the glasses, and the cleaning effect is very problematic in practice, because it is necessary to constantly maintain a high temperature in order to proceed with said cleaning. This also increases fuel consumption and the heating system cannot be operated in the economy mode. It is also necessary to use hard, well-dried wood. Woods with higher moisture content or resin completely suppress the self-cleaning effect. In addition, the catalysis layer is abraded during cleaning and is lost over time.

Another constructional solution is to separate the flue gas from the glass by a thin stream of air brought close to the glass. The air flow enters the combustion chamber space in at least one full length of the glazing. This creates a screen that prevents contamination. A disadvantage of this most commonly used solution is that the air enters the combustion chamber as a thin stream of high velocity generated by the vacuum in the combustion chamber, thereby creating the effect of an injector which intensifies and attracts flue gas near the glass with increased intensity. Thus, this injector effect greatly aggravates the result of the separation of the flue gas from the glass itself. As a result, the glass in the form of black strips (tongues) is again contaminated and the visibility in the combustion chamber is subsequently impaired. Since the intake air is at the same time the air required for secondary combustion, its intake is limited. Again, this contamination is stronger when the decaying fuel burns out.

SUMMARY OF THE INVENTION

The aforementioned drawbacks are largely eliminated by an air guiding device for a heater having a door with at least one glazed surface and a combustion chamber, wherein the combustion chamber, in particular the fireplace stoves or the fireplace inserts, is provided with a leakage chamber with a fresh air inlet and the scattering chamber is optionally filled with a porous scattering material according to the invention, characterized in that the device comprises at least one scattering chamber located on the front and / or side face of the door wall and / or the peripheral part of the combustion chamber and wherein the at least one scattering chamber is provided with a perforated bottom at its bottom.

The air sucked into the combustion chamber passes through a scattering chamber filled with a porous scattering material, in which the intake air is dispersed over a larger area, thereby slowing it considerably. The dispersed and slowed air results in the proximity of the glass surfaces, where it creates a coarse screen of slow flowing clean air with a very weak injector effect, while maintaining the amount of air required for secondary combustion within optimal limits. Not even a small amount of flue gas passes through the thick layer of clean air. This means that an optimum amount of secondary air is available for combustion, while at the same time a sufficiently coarse and slowly flowing screen of clean air is available with a slight injector effect.

The main advantage of the present invention is visible in keeping the glass of the glass fireplace or tiled door or other solid glass surfaces of these devices clean.

For proper functionality, it is preferred that the dispersion material is metal wool and / or metal filings and / or mineral wool and / or filter material and that the apertured bottom is made of a fine mesh metal material.

BRIEF DESCRIPTION OF THE DRAWINGS

BRIEF DESCRIPTION OF THE DRAWINGS The invention will be explained in more detail with reference to the drawing, in which FIG. shows a front view of the fireplace insert, including the location of the dispersion chamber in the front upper wall of the fireplace door; 2 is a side view of a partial cut fireplace insert when the dispersion chamber is located in the front upper wall of the fireplace door; FIG. 3 shows a detail of the scattering chamber with a possible air intake indicated and dispersed in the combustion chamber itself; and FIG. 4 is a side view of the fireplace, including the location of the dispersion chamber in the peripheral portion of the fireplace combustion chamber.

EXAMPLES

The combustion chamber, in particular of the fireplace stoves or fireplace inserts, as an integral part of the fireplace, according to FIG. 1 to 4 are structurally arranged such that the front surface of the wall 4 of the door 1 in its upper frame is provided with a dispersion chamber 2. In FIG. 4 shows the location of the scattering chamber 2 in the peripheral part of the fireplace combustion chamber 6. The scattering chamber 2 is provided with a fresh air inlet 7. The lower part of the dispersion chamber 2 is provided with a perforated bottom 5, preferably made of a fine mesh metal material.

The space of the scattering chamber 2 is filled with a porous scattering material 3 consisting of metal wool and / or metal filings and / or other non-combustible porous material. The combustion chamber, in particular the fireplace stoves or fireplace inserts, with the dispersion chamber 2 serves to keep the glass of the glazed fireplace or tiled door 1 and / or the solid glazed surfaces of these devices clean.

Industrial usability

An air guiding device for a heating device according to the present invention, i. with a diffusion chamber are industrially applicable especially for fireplace stoves or fireplaces with glass front, side or opposite surface.

Claims (2)

Air guiding device for a heating device with a door (1), with at least one glazed surface and with a combustion chamber (6), wherein the combustion chamber (6), in particular of the fireplace stoves or fireplace inserts, is provided with a dispersion chamber (2) a fresh air inlet (7) and wherein said scattering chamber (2) is optionally filled with a porous scattering material (3), characterized in that it comprises at least one scattering chamber (2) located on the front and / or side surfaces of the wall (4) a door (1) and / or a peripheral portion of the combustion chamber (6) and wherein the at least one scattering chamber (2) is provided with a perforated bottom (5) at its bottom. Device according to claim 1, characterized in that the perforated bottom (5) is made of a fine mesh metal material.