EP2455666A1 - Closed stove with improved efficiency - Google Patents

Abstract

The oven comprises a cylindrical main portion (27), a furnace (1) and a closed distribution system for combustion air. The primary air is introduced to the grate at the bottom of firebox and the secondary air is introduced through firebox door (22). The upper area of the furnace is inclined in the direction of the front portion of a flame rod (14). An air deflection plate (21) is arranged to guide the secondary air towards the glass pane (23) and to abduct the flue gas from the furnace into the flue gas space (15) between the plate and the rod. The tertiary air is introduced through a pipe (10) arranged at the back of the oven. A distribution channel (32) for tertiary air is arranged behind the firebox, at the back of the oven. The vertical rear wall of the furnace is arranged at various heights designed for inlet of tertiary air. The air introduction openings are formed in the lower region of the furnace main portion. The heat discharge openings (24) are formed in the upper region of the furnace main portion. The curved sidewalls of the furnace demarcate the fire chamber insert (12).

Description

The object of the invention is a stove with improved efficiency, the operation of the stove with improved efficiency by the internal design of the furnace, and the design of the outer air ducts of the furnace body is made possible.

One of the basic problems associated with the efficiency of wood-burning stoves is that burning in the combustion chamber is not perfect, as a result of which the fuel is not utilized to a sufficient extent, a part in the form of still flammable gases is softened together with the flue gas. The other problem is that the heat generated in the combustion chamber is not utilized with the necessary effectiveness, since the flue gas, together with the heat content present in it, goes off into the chimney, and the heating efficiency is low. The efficiency of firing is usually improved by the geometry of the combustion chamber, or by the Lufteinführungsweise. The effectiveness of the heat recovery is usually improved by the most effective possible removal of the heat of the flue gas, through the use of related construction units, heat exchangers. One of the limits of increasing efficiency in any way is the geometry of the furnace, its dimensions, or its shape. This significantly limits the possibilities of the developers involved.

According to the current state of the art is in the Hungarian patent specification with the patent number HU 222 130 , as well as in the derived, under the number WO 2000/050817 published international PTC patent application set forth a stove insert, which can be used in stoves, or in tiled stoves, or in wall-mounted stoves for the design of fire rooms for heating purposes. The stove insert according to the invention consists of a trapezoidal, delimited by oblique side walls combustion chamber, and designed over the firebox flue gas duct. The stove insert has a grate for the introduction of the primary air in the lower area of the firebox, a firebox lining separating the firebox from the outside, and a refractory firebox insert delimiting it from the inside. In the front area of the firebox, a transparent firebox door, made of refractory material, in which the deashing space under the grate is a controllable primary air inlet, above the firebox door, a controllable secondary air inlet guided to the upper area of the firebox door.

It is characteristic of the hearth furnace insert set forth in this publication that tertiary air inlets may also be present approximately in the half furnace height, in the side walls and / or in the rear wall of the furnace, preferably evenly distributed in the side walls and / or in the rear wall of the furnace Height third, in preferably uniform distribution air inlets are designed for the afterburning. Over the firebox, almost parallel to each other, in an overlap with each other, is one off formed a downwardly arranged flame arm, and a smoke deflector arranged above arranged Rauchgaskanal, in such a way that the opening between the flame handlebar and the rear wall of the combustion chamber forms the flue gas hiding the firebox.

In the patent specification with the patent registration number EP 496 043 a solution is presented for a solid fuel fired heating furnace with trapezoidal cross section. The introduction of the secondary air is carried out after the previous solution, and the introduction of the tertiary air on the halfway up the rear wall of the furnace openings configured openings. The stove has a retractable base, in which a rust is present. By placing the fuel on the pedestal, the pedestal is moved downwardly, thereby actuating a closure cap which opens a downwardly located supply air opening in the direction of movement of the pedestal downwards.

In the European patent specification with the number EP 530 126 the design of a stove with a closed firebox, and a part with a glass insert is presented. The part with the glass insert is placed in the front area of the stove, expediently in the door. The stove has a built-in heat exchanger, which consists of a closed chamber, to which the air is supplied through an opening. The air supply opening is located in the upper part of the glass-equipped area. The secondary air flowing in here produces an air jacket which runs along the rear wall of the part equipped with the glass pane. The firebox is formed to include a closed box disposed on the inside of the front portion of the furnace, above the glass-equipped portion, and in which the air introduction into the secondary air duct is controlled via the openings in the front portion of the furnace becomes.

In the Hungarian patent application number HU P0600800 a chimney is presented with improved air supply, whereby the air introduction from the outer air space, and the air distribution in the closed, inner system ensures a more effective combustion process, and the type of secondary air introduction is carried out a uniform flushing of the furnace door. The stove with improved air supply has a, with introductions for the primary, secondary, tertiary and Nachbrennluft equipped, trapezoidal combustion chamber, also has the stove an outside air inlet, and a closed combustion air distribution system, as well as the primary air inlet of the stove in the lower part of the Fire grate, the secondary air inlet above the door of the firebox, as well as the introductions for the tertiary air and the Nachbrennluft are formed in the rear wall of the firebox.

It is characteristic of the solution that the outside air introduction pipe formed on the rear side of the stove is connected to the common air chamber formed under the grate from where the primary air under the grate passes through the ash chamber, and further to the air chamber via a secondary air controller Secondary air duct, and arranged behind the upper region of the firebox door arranged in a horizontal row openings secondary air distribution duct is connected to the rear of the stove, behind the firebox arranged air distribution duct for the tertiary and Nachbrennluft, which in the rear wall the firebox is connected at different heights trained tertiary air discharges and Nachbrennlufteinführungen.

In the specification with the publication number EP 0231424 a hot air oven is presented with solid fuel, which has a basically cylindrical combustion chamber lying position, the protective covering is configured from circumferentially partially extending, successively arranged in the same way elbows. The elbows are outwards and downwards, and their upper and lower ends are open. It is at the front wall of the combustion chamber, a fire door, on the upper part of its rear wall, a chimney pipe for the extraction available. The combustion chamber also has a turning device, which extends from the rear wall of the combustion chamber into the front region of the combustion chamber. It is characteristic that the secondary air is introduced against or over the turning device, the nozzles are arranged in pipe sections, and are introduced with their input ends in two arranged on both sides of the combustion chamber pipe bend.

In the numbers below WO 9964789 and GB 721369 published documents are presented in the prior art, various designs of stoves, or fire chambers.

An incompleteness of the already known solutions is that they do not ensure the effective combustion in the furnace of the stove, as well as the corresponding heat emission to the outer surface of the stove, and thereby the appropriate efficiency of the stove.

In the course of the creation of the solution according to the invention has been the technical problem to be solved, a fireplace stove interior with good efficiency installed in the cylindrical firebox of a given shape, and should be formed in this, whereby simultaneously the heat dissipation with good efficiency and with a corresponding Effectiveness is guaranteed. It has been shown that it has been our objective in the processing of the solution according to the invention, a festgeer in a cylindrical furnace built festive shape with good efficiency.

• in den Feuerraum unten Primärluft, von vorne Sekundärluft, sowie an verschiedenen Stellen in den hinteren Bereich des Feuerraums Tertiärluft zugeführt wird, dann kann die Brennung im Feuerraum mit gutem Wirkungsgrad gewährleistet werden,
• mit der speziellen Methode der Rauchgasentführung, dass über dem Feuerraum ein Rauchgaskanal ausgebildet wird,
• in dem hinteren Bereich des Kaminofens eine die weitere Wärmeabgabe gewährleistende, ferner auch zur Entsorgung der Flugasche und des Russes dienende Rauchgaskammer ausgebildet wird,

und in dem Aussenmantel des Ofenkörpers die die Wärmeabgabe auch unterstützenden Luftkanäle ausgestaltet werden,
dann werden die Wirksamkeit der Wärmeabgabe und der Wirkungsgrad des Kaminofens im wesentlichen erhöht, und die gesetzen Ziele können erreicht werden.We have found in the creation of the solution according to the invention that if

• in the combustion chamber down primary air, from the front secondary air, as well as at various points in the rear area of the furnace tertiary air is supplied, then the combustion in the furnace can be ensured with good efficiency,
• with the special method of flue gas removal that a flue gas duct is formed above the combustion chamber,
• in the rear area of the stove, a further heat dissipation ensuring, also also serving to dispose of the fly ash and soot flue gas chamber is formed,

and in the outer shell of the furnace body, the heat dissipation supportive air ducts are designed,
then the effectiveness of the heat output and the efficiency of the stove are substantially increased, and the set goals can be achieved.

The most commonly realized embodiment, the invention is a stove with improved efficiency, which stove has a furnace body, and provided with openings for primary, secondary, tertiary and Nachbrennluft combustion chamber, also the stove via an external air inlet and a closed distribution system For Combustion air, the introduction for primary air of the stove in the grate in the lower part of the firebox, the introduction of secondary air over the firebox door, introductions for tertiary and afterburning air in the rear wall of the firebox,

There is an inlet pipe for outside air in the rear wall of the stove, which is connected to the formed under the grate common air chamber, from where the introduction of the primary air via the located under the grate scrubbing chamber, to the air chamber, further for the abduction of the secondary, Tertiary and Nachbrennluft a vertical and horizontal air duct is connected, as well as a distribution channel for tertiary and Nachbrennluft behind the furnace, is formed in the rear of the stove, which to the in the rear wall of the firebox at different heights designed for tertiary air, and Introductions for afterburning air are connected,
characterized in that
the stove has a horizontal cylindrical furnace body, in which a reclining combustion chamber is formed, and the side walls of the firebox delimiting combustion chamber insert are curved, the rear wall is vertical, and in the rear wall of the firebox in the middle height of the firebox insert the introduction for tertiary air, and in the introduction of afterburning air is formed in the upper region of the combustion chamber,
in the upper region of the combustion chamber is an oblique, in the direction of the front part of the firebox rising flame control arm, above this flame handlebar, a flue gas space is formed, which via the located in the rear of the furnace body flue gas chamber to the configured at the rear of the furnace body flue gas abatement Stove is connected,
an obliquely placed air deflecting plate is disposed behind the upper part of the firebox door, the air deflecting plate serving to direct the secondary air at the glass pane of the firebox door, and abducting the flue gas from the firebox into the flue gas space between the air deflecting plate and the flame arm,
Further, formed in the outer part of the cylindrical furnace body, in the outer lining of the furnace body curved air ducts whose execution openings for the heat discharge in the upper region of the furnace body, the introduction openings in the lower region of the furnace body.

In an advantageous embodiment of the stove according to the invention, the oven body is arranged on a pedestal, and formed in the lower portion of the oven body above the pedestal side passages for the introduction of convection air to which side passages the insertion openings of the curved air ducts are connected.

In another advantageous embodiment of the stove according to the invention, which is preferably provided with openings for deflecting the secondary air in the upper region of the firebox air deflection plate.

In a further advantageous embodiment of the stove according to the invention, in the lower area of the firebox, behind the lower part of the firebox door one or more lower air deflector inclined position are arranged, which simultaneously serve the function of Glutfängers.

In a further advantageous embodiment of the stove according to the invention, the ash plate is arranged under the grate in the lower region of the firebox, and the primary air is guided in the Entaschungsraum from the common air chamber under the firebox (1).

In a further advantageous embodiment of the stove according to the invention, there is a regulator mechanism for primary air and a regulator mechanism for secondary air under the ash, in the upper region of the common air chamber, to which the located at the side of the furnace body primary air regulator, or secondary air regulator are connected.

In a further advantageous embodiment of the stove according to the invention, the channel for tertiary and Nachbrennluft from the upper region of the common air chamber via the controllable with the secondary air regulator opening at the rear side of the furnace body branches off, whereby the air for introducing the tertiary air and for introduction the secondary air is guided.

In a further advantageous embodiment of the stove according to the invention, the vertical secondary air duct, and the horizontal secondary air duct continues from the tertiary and post combustion duct above the post-combustion air inlet, thereby guiding the secondary air into the front of the firebox.

In a further advantageous embodiment of the stove according to the invention, the Nachbrennluft is guided over a horizontal distribution channel for Nachbrennluft to the introductions of Nachbrennluft from the vertical channel for tertiary and Nachbrennluft.

In a further advantageous embodiment of the stove according to the invention, the execution openings of the heat discharge ducts in the upper region of the furnace body, against each other, are formed at different heights.

• In der Figur 1. wird der Kaminofen nach der Erfindung in Hauptansicht dargelegt.
• In der Figur 2. ist der Kaminofen in der Hauptansicht gemäss Figur 1. ohne Tür zu sehen.
• In der Figur 3. wird der Kaminofen nach der Erfindung in Rückansicht, mit der Lufteinführung und der Rauchgasentführung dargelegt.
• In der Figur 4. wird der Kaminofen nach der Erfindung seitlich, im Längsrichtungsschnitt dargelegt.
• In der Figur 5. wird der Kaminofen nach der Erfindung im Schnitt der Figur 4., in axonometrischer Darstellung gezeigt.
• In der Figur 6. sind die Lufteinführungen, sowie die Rauchgasentführung des Kaminofens nach der Erfindung in axonometrischer Darstellung gezeigt.
• In der Figur 7. ist die Rauchgasentfürhung des Kaminofens nach der Erfindung in Rückansicht dargelegt.
• In der Figur 8. wird der Horizontalschnitt des Kaminofens nach der Erfindung annähernd in der halben Höhe des Feuerraums dargestellt.
• In der Figur 9. ist der Vertikalschnitt des Kaminofens nach der Erfindung annähernd in der halben Länge des Feuerraums dargelegt.
• In der Figur 10. wird die Untersicht des Kaminofens nach der Erfindung mit den Primär- und Sekundärreglern dargelegt.

The solution according to the invention will be explained below on the basis of the enclosed figures:

• In the FIG. 1 , the stove is set forth according to the invention in main view.
• In the FIG. 2 , the stove is in the main view according to FIG. 1 , to see without a door.
• In the FIG. 3 , the stove is set forth according to the invention in rear view, with the introduction of air and the flue gas removal.
• In the FIG. 4 , the stove is laterally set forth according to the invention, in longitudinal direction section.
• In the FIG. 5 , is the stove according to the invention in the section of FIG. 4 ., shown in axonometric representation.
• In the FIG. 6 , the air inlets, and the flue gas removal of the stove according to the invention are shown in axonometric representation.
• In the FIG. 7 , is the Rauchgasentfürhung of the stove according to the invention set forth in rear view.
• In the FIG. 8 , the horizontal section of the stove according to the invention is shown approximately at half the height of the furnace.
• In the FIG. 9 , the vertical section of the stove according to the invention is set out approximately in half the length of the firebox.
• In the FIG. 10 , the bottom view of the stove is set forth according to the invention with the primary and secondary controllers.

In the FIG. 1 , the stove is set forth according to the invention in main view.

In the figure, arranged on the base 30 cylindrical furnace body 27 lying position, the furnace 1, the grate 8, which are arranged in this combustion chamber insert 12, and the Tertiärlufteinführung 10, and the firebox door 22 with the glass pane 23. It can be seen the Flammlenkplatte 25, which simultaneously fulfills the function of the Glutfängers. The flame chamber door 22 is held by the hinge 26, and it is connected to the furnace body 27 via the shutter 28 and the pawl 29. Furthermore, the secondary air regulator 6 configured in the lower region of the furnace body 27 can be seen. In the outer lining 33 of the furnace body 27, the air ducts 34 are designed, whose introductions are formed by the side passages 35 above the pedestal 30, while their execution through the execution openings 24, through which, as heat discharge openings in the side region of the furnace 27 convective air heating in the airspace flows out.

In the FIG. 2 , the stove is in the main view according to FIG. 1 , to see without a door. In the figure, the combustion chamber 1, the combustion chamber insert 12 forming its side wall with the tertiary air inlet 10, the grate 8, as well as the ash removal chamber 7 and the ash plate 31 located in it can be seen.

There are also located in the area of the combustion chamber 1 air baffle 25, which also fulfills the function of the gluten catcher, as well as arranged in the upper region of the combustion chamber 1 horizontal guide channel 19 for the secondary air to see the air deflection plate 21 with the openings 20. In the figure, the furnace body 27 arranged on the pedestal 30, in this case without the firebox door 22, and the hinge 26 holding the firebox door 22, and the secondary air regulator 6 located in the lower part of the furnace body 27 can be seen. It can be seen in the outer lining 33 of the furnace body 27 designed air channels 34, the insertion openings are connected to the above the base 30 formed side passages 35. The heat discharge openings of the air channels 34 are then the execution openings for the convection air 24th

In the FIG. 3 , the stove is set forth according to the invention in rear view, with the introduction of air and the flue gas removal. In the figure, the furnace body 27 disposed on the pedestal 30, in whose rear area the outside air introduction pipe 2 is attached, which is connected to the common air chamber 4 in the lower area of the furnace 27, can be seen. There are also the flue gas version 16, and the controller 6 for secondary air, as well as the shutter 28 and the pawl 29 of the furnace door 22 can be seen. It can also be seen the execution openings for the convection air 24, which are connected to the formed in the outer lining 33 of the furnace body 27 air channels. The side passages 35 formed above the pedestal 30 can be seen, which serve to introduce the convection air.

In the FIG. 4 , is the stove according to the invention from the side, in longitudinal section AA of the FIG. 1 , explained. In the FIG. 5 , the stove according to the invention in the same section set out, however, compared to the FIG. 4 , slightly twisted, in axononmetric representation.

In the figure, the designed in the interior of the furnace body 27 combustion chamber 1 can be seen, which are delimited laterally by the combustion chamber insert 12 and the Feuerraummantel 13. In the lower region of the combustion chamber 1, the grate 8, below which, in the ash removal chamber 7, the ash plate 31 is arranged. The combustion chamber 1 is closed from the front by the equipped with a glass 23 firebox door 22, behind the air deflector 25 is arranged, which simultaneously fulfills the function of the gluten catcher. In the rear area of the combustion chamber 1, in the combustion chamber insert 12, the introduction for the tertiary air 10, and in the upper region, the introduction for the afterburning air are designed in the middle height.

In the rear portion of the furnace body 27, the introduction pipe 2 for the outside air is arranged, which is connected to the common air chamber 4. From this branches off the controllable opening 3 of the channel 9 for the tertiary and Nachbrennluft from which the secondary air to the introduction of the tertiary air 10, and the introduction of the Nachbrennluft 11, as well as the vertical guide channel for the secondary air 18, and the horizontal guide channel for the secondary air 19 leads into the front of the furnace 1 upwards. For deflecting the secondary air, the air-deflecting plate 21 provided with openings 20 is arranged in the upper area of the combustion chamber 1 at the front. About the configured in the horizontal distribution channel for the Nachbrennluft 32 channel the Nachbrennluft from the vertical channel for tertiary and Nachbrennluft 9 is guided to the introductions for the Nachbrennluft 11.

In the upper region of the combustion chamber 1 is located in the direction of the front part of the furnace 1 obliquely rising Flammlenker 14. About the flame arm 14 of the flue gas chamber 15 is arranged, which is connected via the located in the rear region of the furnace body 27 flue gas chamber 17 to the flue gas removal 16 , In the figure, the base 30 is further seen below the furnace body 27. Above the pedestal 30 are serving for the introduction of the convection air side passages 35. In the figure, the formed in the outer lining 33 of the furnace body 27 air ducts 34, and their execution openings 24 can be seen in section.

In the case of the application of the solution according to the invention, the fire burns on the grate 8 in the combustion chamber 1, the air is introduced in such a way that the air is supplied in three places, the separately controllable primary air from below, the separately controllable secondary air for flushing the Disc from the front, the tertiary air and the Nachbrennluft from behind. The secondary, tertiary and post-combustion air can be controlled together. The tertiary air enters the rear of the furnace 1. Part of the tertiary air is separated, and fed as Nachbrennluft the upper portion of the furnace 1.

The flue gas is abducted in such a way that the flue gas is guided in the upper region of the combustion chamber 1 at the flame arm 14 above the flame arm 14 in the flue gas chamber 15, then from there to the rear, in the flue gas chamber 17 behind the furnace 1. Here is another heat release, heat recovery. At the flue gas chamber 17 is preferably a cleaning opening, or the rear wall of the furnace body 27 can be dismantled, the flue gas chamber 17 cleaned, and the deposits are temporarily removed from there.

The air of the room or of the inner air space flows into the air ducts 34 configured in the outer lining of the furnace body 27. The air exits from the upper air space via those located in the lower region of the furnace body 27 Side passages 35 in the air channels 34, and from there above, on the execution openings 24. In this case, it is heated by the outer surface of the furnace body 27, and at the same time it comes into contact with the flue gas flowing out above the wall of the furnace body 27. As a result, the heat utilization is significantly increased.

In the FIG. 6 , are the air inlets of the stove according to the invention, and the flue gas discharge schematically, in the simplified drawing of the axonometric representation according to FIG. 5 , to see.

The air L flows from the outside space via the introduction tube of the stove 2 for the outside air into the interior of the stove 2, in the common air chamber. From here, a portion of the air passes through the primary regulator and the ash removal chamber and the grates 8 into the firebox, where it directly feeds the firing process in the firebox.

The remaining part of the air L passes from the common air chamber 4 through the opening 3 via the secondary air regulator 6 in the vertical guide channel for the secondary air. During the upward flow along the side wall of the combustion chamber 1, it heats up to a considerable extent, which substantially improves the efficiency of the combustion process. The secondary air passes through the disposed in the upper region of the furnace 1 distribution channel for secondary air 19 on the air deflector 21. Then it comes with the help of the air deflector 21 in front of the firebox door 22, where it abut on the glass plate 23 along which flows down, causing a better efficiency of the combustion, and the Rußentfernung be ensured by the glass sheet 23 of the furnace door 22.

A portion of the outside air L flows from the common air chamber 4 via the channel for tertiary air and Nachbrennluft 9 to the introductions of tertiary air 10, as well as to the introductions of Nachbrennluft 11. The tertiary and Nachbrennluft flows in the channel for tertiary and Nachbrennluft 9 behind the furnace liner 12 and the furnace shell 13 from bottom to top, whereby it heats up to a lesser extent, and by this process the efficiency of the combustion is further improved. The tertiary air enters the combustion chamber via the introductions for tertiary air 10, which are arranged approximately at half the height of the combustion chamber 1.

The flue gas R flows in front of the arranged above the firebox 1 flame guide 14 in the formed in the upper part of the stove flue gas chamber 15, then from there into the rear of the stove trained flue gas chamber 17, and it is carried out from there via the flue gas vent 16.

In the FIG. 7 , is the flue gas hiding the stove according to the invention in rear view.

It's the FIG. 7 , it can be seen that the flue gas R flows upwards from the combustion chamber 1 above the flame guide 14 and between the air deflection plate 21. Here it flows in the flue gas space 15 under the guide channel for secondary air 19 in the direction of the rear portion of the stove over. There, the flue gas enters two separate parts in the flue gas chamber 17, where it emerges from the stove with a 180 ° turn on the flue gas removal 16. As a result, the heat output is improved because the flue gas R comes into contact with the outer lining 33 of the furnace body 27 on a larger area. The spinning of the flue gas R in this way has the advantage that the possibly present in the flue gas dust and Russkörnchen be discontinued here.

In the FIG. 8 , was the horizontal section of the stove according to the invention approximately in the half furnace height, in section BB FIG. 1 , explained.

In the figure, the combustion chamber 1 can be seen, the lower part is formed by the grate 8. It is the configured in the Feurraumeinsatz introduction for tertiary air 10, and the introduction of the Nachbrennluft 11 can be seen.

The firebox door 22 can be seen in section, behind which the air-deflecting plate 25 is arranged in the interior of the firebox 1, which at the same time is a gluten catcher. The hinge 26 holding the firebox door 26, as well as the opening and closing ensuring closure 28 and pawl 29 can be seen in section. It is also the flue gas chamber 17 located in the rear area of the furnace body 27, the vertical secondary air duct 18, and the horizontal afterburner air distribution duct 32.

The furnace body 27 is arranged on the base 30, and the outer lining 33 of the furnace body 27, the air ducts 34 formed in the outer lining 33 of the furnace body 27 can be seen in section. Above the pedestal 30, the side passages 35 are formed, and he is secondary air regulator 6 can be seen.

In the FIG. 9 , the vertical section of the stove according to the invention can be seen approximately in half the length of the furnace.

In the figure, the combustion chamber 1, the grate 8 in its lower portion, and the Entaschungsraum 7. Among these is the joint with the introduction tube for the outside air 2 common air chamber 4. It is in the rear wall of the combustion chamber 1 in the furnace insert 12 configured introduction for the tertiary air, and to see the introductions for the Nachbrennluft 11. Furthermore, the flame guide 14, which is arranged above the combustion chamber 1, can be seen above the flue gas chamber 15 above which the horizontal guide channel for the secondary air 19 is arranged. Further, the air passages 34, the side passages 35 connected to the pedestal 30, the introduction ports for the air passage 38, and the execution ports for the convection air 24 are provided.

In the FIG. 10 , is the bottom view of the stove according to the invention with the primary and secondary controls to see.

In the figure, the upper part of the common air chamber 4 located in the lower portion of the furnace body 27 with the primary air regulator 5 and the secondary air regulator 6, as well as the mechanism for the primary air control 36 and the secondary air control mechanism 37 connected thereto are shown which the opening 3 in the lower region of the furnace body 27 up or close. In the figure, equipped with the glass pane 23 the firebox door 22, and behind the flame arm 14, a part of the flue gas chamber 15, as well as located in the upper region of the firebox 1 provided with openings 20 Luftumlenkungsplatte 21, as well as in the lower region of the firebox 1 arranged air deflector 25, which is also an ash trap. There are the hinge 26 of the furnace door 22, and the shutter 28 and the pawl 29 can be seen. Further, the air passages 34 formed in the outer lining 33 of the furnace body 27, as well as the side passageways 38 with the introduction openings for the air passage 38, are formed above the pedestal 303.

In the case of an advantageous concrete realization of the solution according to the invention, the furnace body 27 has a horizontal cylindrical shape, the combustion chamber 1 in this has a cylindrical shape, its side walls are curved slightly. The material of Lining of the firebox 1 is heat resistant concrete thermotte. The material of the stove is steel plate, the rust is cast iron.

The air supply of the stove according to the invention comes from the outside space, in such a way that the air passes through the wall of the building in the located in the interior of the stove common air chamber 4 passes through the formed in the rear wall of the stove inlet pipe for external air 2 , The air entering the common air chamber 4 is subsequently distributed to primary, secondary, tertiary and afterburner air. The primary air flows through the primary air regulator 5, via the deashing chamber 7, through the grate 8 from bottom to top into the combustion chamber 1. The secondary air flows before entering the combustion chamber 1 through the secondary air regulator 6 from bottom to top on the located on both sides of the combustion chamber guide channel for secondary air 18. In the meantime, it is significantly preheated, thereby improving the efficiency of combustion.

The secondary air is fed into the combustion chamber 1, or the distribution takes place via the openings with an externally reducing cross section 20. The further path of the secondary air leads from the distribution channel for secondary air 19 through the openings 20 behind the heat-resistant glass pane 23 of the combustion chamber door 22, from top down. By this flow, the glass sheet is simultaneously "flushed" by the secondary air, whereby their distraction, or the deterioration of the offered by the stove aesthetic experience is prevented.

In the case of a further advantageous concrete realization of the solution according to the invention, the tertiary and Nachbrennluft flows together with the secondary air, thanks to the suction of the chimney in a controlled manner behind the rear wall of the furnace 1, in the tertiary and Nachbrennkanal 9, from below above. Meanwhile, the tertiary and post-combustion air - to a lesser extent than the secondary air - also preheated. The preheated Tertiärluft, and the Nachbrennluft enter via the configured in the rear wall of the combustion chamber 1 openings into the firebox. In the case of a further advantageous concrete realization of the solution according to the invention, the tertiary air flows into the combustion chamber 1 via an introduction for tertiary air 10 designed in the rear wall of the combustion chamber 1 in the combustion chamber 13, while the afterburner air flows over the five upper introductions for afterburning air 11 the distribution channel for Nachbrennluft 32 flows into the furnace.

• Der Ofenkörper 27 hat eine liegende zylindrische Form, in welchem auch der Feuerraum 1 liegend ausgestaltet ist, die Erreichung des entsprechenden Wirkungsgrades erfordert die Lösung von speziellen technischen Aufgaben.
• Es gibt hinten, hinter der Rückwand des Feuerraums 1 einen Verteilerkanal für Nachbrennluft 32, daraus öffnen sich die Einführungen für die Nachbrennluft 11.
• Eine Rauchgasentführung vor dem Flammlenker 14, und darüber ein Rauchgasraum 15, welcher zu der in dem hinteren Bereich des Ofenkörpers 27 ausgebildeten Rauchgaskammer 17 angeschlossen ist, und die Gasentführung 17 im hinteren Bereich des Kaminofens ist mit der Rauchgaskammer verbunden.
• Die Öffnungen 20 auf der Flammlenkplatte 21 leisten ein wenig Luftrückführung in den Rauchgasraum 15. Dadurch wird eine mehr vollkommene Verbrennung der in dem aus dem Feuerraum 1 auströmenden Gasen vorhandenen brennbaren Gasen unterstützt, und dadurch die Staub- und Russemission effektiv verringert. Der Staub- und Russwert werden verbessert.
• Die sich über dem Untersatz 30 in den Raumluft anschliessenden Öffnungen 35 öffnen sich aus dem unteren Bereich des Ofenkörpers 27, sie sind mit den Luftkanälen 34 verbunden.
• Die Luft des Raumes strömt unten, über die Seitendurchgänge 35 hinein, sie wird in dem Luftkanal 34 erwärmt, und strömt oben durch die Ausführungsöffnungen für Konvektionsluft 24 aus dem Raum aus. Dadurch wird eine verbesserte Wärmeabgabe, und ein erhöhter Wirkungsgrad gewährleistet.

The interior of the fir tree 1 differs from that of the earlier development significant stove with improved air supply in the following:

• The furnace body 27 has a horizontal cylindrical shape, in which also the combustion chamber 1 is designed lying, the achievement of the corresponding efficiency requires the solution of special technical tasks.
• There are behind, behind the rear wall of the combustion chamber 1, a distribution channel for Nachbrennluft 32, from which open the introductions for the Nachbrennluft 11th
• A flue gas vent in front of the flame arm 14, and above a flue gas space 15, which is connected to the formed in the rear portion of the furnace body 27 flue gas chamber 17, and the gas vent 17 in the rear of the stove is connected to the flue gas chamber.
• The openings 20 on the Flammlenkplatte 21 afford a little air return into the flue gas chamber 15. This is a more perfect combustion in which from the Combustion chamber 1 supports the flow of existing combustible gases, effectively reducing dust and soot emissions. The dust and soot values are improved.
• The adjoining the base 30 in the room air openings 35 open out of the lower portion of the furnace body 27, they are connected to the air channels 34.
• The air of the room flows down through the side passages 35, is heated in the air passage 34, and flows up through the convection air outlets 24 from the room. This ensures improved heat dissipation and increased efficiency.

A technical advantage resulting from the solution according to the invention is that, compared with the cylindrical combustion chamber of a given shape, one with the air additions ensures combustion of increased efficiency, and heat release, and the safety of combustion in the combustion chamber is increased.

• Umweltfreundlich
• Eine geringe CO-, CnHm- und Staubemission, ein guter Wirkungsgrad
• Die in Deutschland in 2015 in Kraft tretenden Vorschriften für Bundesemissionsschutzverordnung BlmSchV 2. Stufe erfüllen. Das auf Grund der Lösung nach der Erfindung hergestellte Produkt entspricht auch den österreichischen und schweizerischen sicherheitstechnischen und Umweltschutznormen.
• Die verwendbaren Brennmethoden sind: Holz, Braunkohlenbrikett.

Other advantages are as follows:

• environmentally friendly
• Low CO, CnHm and dust emissions, good efficiency
• The German Federal Emission Protection Ordinance BlmSchV 2 nd Stage, which comes into effect in 2015 in Germany. The product produced on the basis of the solution according to the invention also corresponds to the Austrian and Swiss safety and environmental standards.
• The usable firing methods are: wood, brown coal briquette.

The advantage of the solution according to the invention is that the air feeding the combustion from the outside space leads into the combustion chamber, thereby no air is extracted from the almost perfectly isolated interior. Thus, the oxygen used by the stove should not be ensured from the air of the heated interior. The air distribution, including the air control support the more effective combustion processes and a more effective delivery of the amount of heat generated. By distributing and discharging the primary, secondary, tertiary and post-combustion air, the air preheats into the combustion chamber, thereby significantly improving the efficiency of combustion.

Due to the design of the furnace and the heat-emitting surfaces heat dissipation higher efficiency can be ensured, whereby the heat sensation of the person staying in the vicinity of the stove is substantially increased. The solution according to the invention, the effective and uniform distribution of the oxygen supply of the stove ensuring air, and a corresponding flushing of the glass pane of the furnace door are secured.

Thanks to the obliquely arranged flame handlebar no smoke drum is required because the heat of the smoke produced is distributed several times, namely the smoke is directed by the flame arm up, to the upper wall of the firebox, where the smoke from reaching further back. The heat is distributed better in this way, so the wall behind the rear wall of the stove does not overheat, which is important from a safety point of view, because behind the stove, which has a warmer wall, the wall, the wallpaper, the Lambrie brown will burn, in an extreme case too.

List of reference symbols:

1. 1 - firebox
2. 2 - Inlet pipe for outside air
3. 3 - opening
4. 4 - Common air chamber
5. 5 - Primary air regulator
6. 6 - Secondary air regulator
7. 7 - Dusting room
8. 8 - rust
9. 9 - channel for tertiary and post-combustion air
10. 10 - Introduction to tertiary air
11. 11 - Introduction to afterburning air
12. 12 - combustion chamber insert
13. 13 - Fire room coat
14. 14 - Flame handlebar
15. 15 - flue gas room
16. 16 - Abduction of flue gas
17. 17 - smoke gas chamber
18. 18 - secondary air duct (vertical)
19. 19 - secondary air duct (horizontal)
20. 20 - opening
21. 21 - Air deflection plate
22. 22 - firebox door
23. 23 - glass pane
24. 24 - execution opening (convection air)
25. 25 - air deflector (at the same time also glut catcher)
26. 26 - hinge
27. 27 - furnace body
28. 28- lock
29. 29 - latch
30. 30 - pedestal
31. 31 - ash plate
32. 32 - Distribution channel for afterburning air (horizontal)
33. 33- Outer lining (furnace body)
34. 34 - air duct (in the outer lining of the furnace body)
35. 35 - side passage (formed above the pedestal)
36. 36 - Regulator mechanism for primary air
37. 37 - Regulator mechanism for secondary air
38. 38 - Air duct inlet

• L - AIR
• R - SMOKE GAS

Claims (10)

A stove with improved efficiency, which stove has a furnace body, and provided with openings for primary, secondary, tertiary and Nachbrennluft combustion chamber, also the stove has an external air inlet and a closed distribution system for combustion air, the introduction for primary air of the Stove in the grate at the bottom of the firebox, the secondary air intake above the firebox door, the tertiary and afterburner intakes are formed in the back wall of the firebox,
There is an inlet pipe for outside air in the rear wall of the stove, which is connected to the formed under the grate common air chamber, from where the introduction of the primary air via the located under the grate scrubbing chamber, to the air chamber, further for the abduction of the secondary, Tertiary and Nachbrennluft a vertical and horizontal air duct is connected, as well as a distribution channel for tertiary and Nachbrennluft behind the firebox, formed in the rear of the stove, which to the in the rear wall of the firebox at different heights designed for tertiary air, and Introductions for afterburning air are connected,
characterized in that
the stove has a horizontal cylindrical furnace body (27) in which a horizontal combustion chamber (1) is formed, and the side walls of the firebox (1) delimiting combustion chamber insert (12) are curved, the rear wall is vertical, and in the rear wall of the combustion chamber (1) in the middle height of the firebox insert (12) the introduction for tertiary air (10), as well as in the upper part of the firebox (1) the introduction of afterburning air (11) are formed,
in the upper region of the firebox (1) there is an oblique firing link (14) rising in the direction of the front part of the firebox (1), above this firing link (14) a flue gas space (15) is formed, which over the in the rear area the flue gas chamber (17) located in the furnace body (27) is connected to the flue gas vent (16) of the stove, which is designed to be at the rear part of the furnace body (27),
an inclined air deflecting plate (21) is disposed behind the upper part of the firebox door (22), the air deflecting plate (21) serving to supply the secondary air to the glass pane (23) of the firebox door (22) and discharging the flue gas out of Combustion chamber (1) in the flue gas space (15) between the air deflection plate (21) and the flame arm (14).
Further, in the outer part of the cylindrical furnace body (27), in the outer lining (33) of the furnace body (27) curved air ducts (34) are formed, whose execution openings for the heat release (24) in the upper region of the furnace body (27), the insertion openings (38) are in the lower region of the furnace body (27). The stove according to claim 1, characterized in that the furnace body (27) is arranged on a pedestal (30), and in the lower portion of the furnace body (27) above the pedestal (30) side passages (35) for the introduction of convection are formed, to which side passages (35) the insertion openings (38) of the curved air ducts (34) are connected. The stove according to claim 1, or 2, characterized in that the deflection of the secondary air in the upper region of the combustion chamber (1) arranged air deflection plate (21) is preferably provided with openings (20). The stove according to claim 1 to 3, characterized in that in the lower region of the firebox (1), behind the lower part of the firebox door (22) one or more lower air deflecting plate (25) are arranged obliquely, which simultaneously serve the function of the Glutfängers. The stove according to claim 1 to 4, characterized in that the ash plate (31) under the grate (8) in the lower region of the combustion chamber (1) is arranged, and the primary air in the ash removal chamber (8) from the common Air chamber under the firebox (1) is guided. The stove according to claims 1 to 5, characterized in that there is a primary air regulating mechanism (36) and a secondary air regulating mechanism (37) under the scavenging chamber (8) in the upper region of the common air chamber (4) to which the primary air regulator (5) or secondary air regulator (6) located at the side of the furnace body (27) are connected. The stove according to Anschpruch 1 to 6, characterized in that the channel for tertiary and Nachbrennluft (9) from the upper region of the common air chamber (4) via the with the secondary air regulator (6) controllable opening (3) at the rear Branched off side of the furnace body (27), whereby the air for introducing the tertiary air (10) and for introducing the secondary air (6) is guided. The stove according to claim 1 to 7, characterized in that the vertical guide channel for secondary air (18), and the horizontal channel for secondary air (19) from the channel for tertiary and Nachbrennluft (9) on the introduction of Nachbrennluft (11 ), whereby the secondary air is led into the front area of the combustion chamber (1). The stove according to claim 1 to 8, characterized in that the Nachbrennluft via a horizontal distribution channel for Nachbrennluft (32) to the introductions of Nachbrennluft (11) from the vertical channel for tertiary and Nachbrennluft (9) is guided. The stove according to claim 1 to 9, characterized in that the execution openings (24) of the heat discharge channels (34) in the upper region of the furnace body (27), against each other, are formed at different heights.

Images