EP3450654A1 - Self-cooling component - Google Patents

Abstract

Construction element (1), in particular for domestic use, which extends along a longitudinal extension direction (L), comprising a body (2), a cover (4) and a cooling section (6), the body (2) extending in the longitudinal direction ( L) and together with the cover (4) surrounds an interior space (8) at least in regions, wherein the cover (4) is designed so that the combustion gases of a hearth (10) are guided indirectly or directly through this, wherein the cooling section ( 6) on a first outer surface (14) of a first wall (12) of the body (2) is arranged, wherein the cooling line (6) comprises a partition wall (16), an inlet opening (18) and an outlet opening (20), wherein the Separating wall (16) has a contact surface (22) which is designed to be arranged on a structural wall (B) in order to delimit the inner region (24) of the cooling section (6) from the surroundings (U), the inlet opening (18 ) is designed so that through this direct or indirect air from the environment (U) in the cooling section (6), wherein the at least one outlet opening (20) is adapted to the environment (U) medium or directly with the inner region (24) of the cooling section (6 ), wherein the inlet opening (18) is arranged below the outlet opening (20).

Description

The invention relates to a self-cooling component, in particular for domestic use.

Components of the type in question are used to transport the exhaust gases from a fireplace directly or indirectly and optionally additionally or alternatively still dazuzu to store the fireplace. Such devices are already known in the art by e.g. Chimney elements or fireplace support elements known. The problem with these known from the prior art devices, however, is that these components may not be placed in particular in the vicinity of combustible walls, since such an arrangement represents a significant risk of fire. However, it is desirable for practical and aesthetic reasons, to arrange the device directly to the wall.

It is therefore an object of the present invention to provide a device which is able to be arranged on a wall, without creating a fire hazard, even if it is a, in particular highly insulated, combustible wall.

This object is achieved by a component having the features of claim 1 and by an arrangement having the features of claim 10. Preferred embodiments will be apparent from the dependent claims.

According to the invention, a component, in particular for domestic use, which extends along a longitudinal direction, a body, a cover and a cooling section, wherein the body extends in the longitudinal direction and extends together with the lid an interior at least partially encloses, with the lid designed in that the combustion gases of a hearth are indirectly or directly guided by the latter, wherein the cooling section is arranged on a first outer surface of a first wall of the body or wherein the cooling section is at least partially bounded or formed by the first outer surface of a first wall, wherein the Cooling section comprises a partition wall, an inlet opening and an outlet opening, wherein the partition wall has a contact surface which is adapted to be arranged on a structural wall in order to delimit the inner region of the cooling section from the environment, wherein the inlet is designed to directly or indirectly through this air enters the cooling section from the environment, wherein the at least one outlet opening is adapted to connect the surrounding medium or directly to the inner region of the cooling section, wherein the inlet opening disposed below the outlet opening is. The component may be a chimney element, a part of a chimney element, a fireplace corpus or a combination of a chimney element and a fireplace corpus, which is particularly in the domestic field - therefore not in the industrial sector - application. The body of the component is used in particular to absorb the resulting forces. This is therefore the supporting structure of the device. The body extends mainly in the longitudinal direction. The body defines in particular for the most part the external appearance or the outer shell of the component through the outer walls of the body. Preferably, the body is made of concrete, preferably made of particular fiber-reinforced lightweight concrete, fireclay or ceramics, so that it can withstand high temperatures. The lid of the component bounds the interior of the device in the longitudinal direction. In the lid openings may be present, which provided for example for the guidance of the combustion gases are. Advantageously, the lid is made of a non-metallic material, at least for the most part, so that corrosion of the lid can be minimized or prevented. The interior is the space within the component, which is at least partially enclosed by the lid and the body. The longitudinal extension direction is the direction of the component, in which determines the length of the device itself. In this case, the longitudinal extension direction is preferably the direction in which the combustion gases also flow or are guided within the component. When installed, the longitudinal extension is in particular the direction which is directed against the vector of gravitational acceleration. The positive longitudinal extension direction is defined by the fact that the inlet opening is arranged in the longitudinal direction of extension below the outlet opening. The ratio of the minimum distance of the inlet opening to the outlet opening to the total length of the component in the longitudinal direction is preferably in a range of 0.4 to 0.9. As a result, a particularly good cooling effect can be achieved. To achieve a particularly cost-effective cooling section, it is advantageous if the ratio is in a range of 0.5 to 0.87. In order to achieve a cooling path with particularly low flow resistance, it is particularly preferred if the ratio is in a range of 0.6 to 0.85. The hearth which produces the combustion gases may in particular be a furnace for burning fossil fuels. Preferably, however, the hearth is a hearth for solid fuel, such as wood or coal. The combustion gases of this hearth can be guided within the component medium or directly. Guided here means that the combustion gases are passed through at least part of the component, in particular in the longitudinal direction of extension. This can be done directly by the interior of the device is used directly to guide or there are provided within the interior of tubes or other guide means through which the combustion gases are indirectly guided. In this case, the first outer surface is the outer surface of the first wall, wherein this first outer surface is characterized in particular by the fact that it has an outwardly pointing normal, which in the later installed state to an adjacent building wall has. At this first outer surface, the cooling section is arranged, therefore forms at least a part, in particular a boundary surface, the cooling section. The cooling section serves to cool the device. This is achieved by dissipating a heat flow from the first outer surface of the body into a fluid flow that flows through the cooling path. This, in particular self-driving, fluid flow takes place between the inlet opening and the outlet opening of the cooling section, wherein this is driven by the heating-related change in density of the working fluid, in particular air. Therefore, expediently no flow-driving elements, such as, for example, ventilators or other turbomachines are provided, which drive or force the fluid flow. The inlet opening is the opening or openings through which the working fluid enters the interior of the cooling section. The working fluid exits the cooling section through the at least one outlet opening. The interior of the cooling section is the volume which is surrounded between the inlet and the outlet opening and otherwise by the at least one partition wall, a possible further partition wall and building walls in the installed state. In other words, the interior area is the cavity which is enclosed between the body, the partition wall or partition walls, the inlet and outlet openings and the walls provided by the building (later). The partition wall of the cooling section therefore serves to separate the inner region of the cooling section from the fluid present in the environment, in particular air. In particular, the partition wall is designed such that it extends the outer wall of a side surface of the body immediately, so that externally no geometric changes, such as a forward or return between the side wall of the body and the partition can be seen. "Not recognizable" means in this context that a possible back or projection may be a maximum of 3 mm in size. Particularly preferably, the component has two partitions, which may expediently be arranged parallel to one another. So that the partitions also withstand high thermal loads, it is advantageous if these are made in one piece with the body. The width of the interior of the cooling section determined by the distance between the two partitions, in particular in the transverse direction to each other. Should there be only one partition, the width of the interior is determined by the distance, especially in the transverse direction, of a partition to the distally most distant opposite outer surface of the body extending parallel to the partition. In other words, the width of the inner region is therefore the width of the area of the cooling section through which the fluid can flow, in particular in the transverse direction. Preferably, the width of the inner region is in a range of 25 cm to 80 cm. Alternatively, preferably, the ratio of the width of the inner region to the length of the component is in a range of 0.1 to 0.4. In this way, a particularly good cooling effect of the cooling section can be achieved. The contact surface of the partition wall is designed to be applied flat on the building wall. In this context, "application" can be understood in particular to mean that the contact surface is in direct contact with the structural wall or that a small gap between the contact surface and the structural wall in the installed state of a maximum of 5 mm may exist. This small gap can be filled with building material at least partially. The building material may be, for example, plaster or spatula. Preferably, however, there is no distance between the contact surface and the building wall. Therefore, the contact surface is in the installed state directly to the wall. The building wall is a wall which belongs to the building in which the component is to be installed. This wall is preferably flat. Particularly preferably, it is a wall which is combustible and can be highly insulated, wherein the wall may preferably have a wall thickness of more than 45 cm. By the device according to the invention can be achieved that is made possible by the cooling effect of the cooling section, that the device can be arranged directly on a building wall, without a risk of fire emanating from the device.

Conveniently, the interior is designed so that the combustion air for the fireplace is directly or indirectly guided by this. The combustion air is the air that is needed for combustion in the fireplace. In other words, this means that the device in particular is designed for room air independent fire pits. In particular, indoor air-independent fireplaces receive their combustion air from outside the building.

Preferably, the first wall, which has the first outer surface, opposite a first inner surface, wherein on the first inner surface heat conducting elements are arranged. These heat-conducting elements serve to homogenize the temperature in the first wall. In other words, this means that the heat conducting elements are designed to ensure that, especially in the longitudinal direction, no temperature gradient is present or at least minimized. The heat-conducting elements are preferably formed from a metallic material, since they have particularly good heat-conducting properties. In particular, the heat-conducting elements can be formed by surface-enlarging means.

Advantageously, the device surrounds the fireplace at least partially, and wherein the hearth is insertable through a feed opening in the interior. In other words, this means that the device can serve to store the hearth, which passes through the feed opening in the interior of the device. Preferably, the supply opening of the component is designed such that the fireplace can get completely into the interior of the device.

Reinforcements are preferably arranged in the body, which penetrate the component along the longitudinal extension direction, in particular to 90%. The reinforcements are reinforcement, which consist in particular of steel, and are designed to achieve a higher compressive or tensile strength of the device. Preferably, a plurality of independent vervariages are provided in the body of the component. This makes it possible to easily increase the mechanical strength.

In a preferred embodiment, the reinforcements each have at least one connecting portion, by means of which they can be fixed to another reinforcement. This makes it possible that further elements can be arranged on the component and the reinforcement of the other element can be connected to the reinforcement of the component, so that particularly high loads can be transmitted in this composite.

Conveniently, the body has a rectangular inner and / or outer cross-section. This allows a particularly cost-effective production of the device can be achieved. The cross section of the body is preferably determined in a plane which has a normal in the longitudinal extension direction.

Preferably, in the interior above the outlet opening and below the lid insulation material is introduced or can be introduced into this area. Through this insulation material, a heat flow through the lid can be reduced in a cost effective manner. This reduction of the heat flow, in particular upwards (in the positive longitudinal direction), thereby minimizes the risk of fire considerably. In particular, the insulation material is a different material than the material of which the body or the lid consist. The insulating material preferably has a heat conduction coefficient of less than 0.04 W / (mK). The insulating material can be formed for example by rock wool, foam glass or glass wool. By "introduced" or "insertable" is to be understood that at least 30% of the entire interior above the outlet opening and below the lid with the insulating material, in particular when installed, are filled. Preferably, however, the entire room is filled with insulation material. "Total" is to be understood that small gaps, which are caused by the assembly, and means through which the combustion gases and the supply air are guided to pass through this part of the interior, without departing from a total filling of this part of the interior becomes. In other words, this means that the entire filling of this part of the interior is fulfilled when the insulation material the space otherwise occupied by air almost completely fills, in which case "air" is not to be understood as the supply or exhaust air responsible for the combustion.

Conveniently, the first outer surface lies in a plane which is formed by the longitudinal direction of extension and a transverse direction. This allows a particularly cost-effective production of the device can be achieved. The transverse direction is that direction which is perpendicular to the longitudinal extension direction and spans with this a plane in which, in the installed state, the structural wall lies against which the contact surface of the at least one partition wall is to be arranged. Therefore, it is particularly preferred if the contact surface lies in a plane which is oriented parallel to the first outer surface.

Preferably, the ratio of the wall thickness of the first wall to the distance in the normal direction of the contact surface is between 0.2 and 2, preferably between 0.5 and 1.7 and particularly preferably between 0.8 and 1.4. The wall thickness of the first wall is the average wall thickness of the first wall over the longitudinal extension direction. The wall thickness itself is preferably determined in the normal direction. The distance is the smallest distance in the normal direction from the contact surface to the first outer surface. The normal direction is that direction which is perpendicular to the longitudinal direction and the transverse direction. As a result, a particularly good insulation can be achieved by the air layer in the intermediate space. With a ratio between 0.5 and 1.4 can be achieved that a particularly low flow resistance is achieved in the cooling section. At a ratio between 1.4 and 2 results in a particularly compact component, so that only a small space requirement is present. Alternatively preferably, the distance is at most 12 cm, preferably 6 cm and particularly preferably 4 cm.

Conveniently, a Oberflächenvergrößerndes means is disposed within the cooling section. As a result, a particularly good cooling effect of the component can be achieved. The surface enlarging agent is in particular a separate component, which is formed in one or more parts, and increases the cooling surface of the interior of the cooling section. The surface-enlarging agent is preferably formed from a metallic material so that the thermal conductivity within the surface-enlarging agent is very high. As a result, the heat flow output into the cooling fluid within the cooling section can be increased in a simple manner. Preferably, the cooling surface of the interior with the surface enlarging agents is in a ratio to the cooling surfaces without the surface enlarging agents of at least 1.25. Of course, the ratio is of course greater, and is therefore in particular above 1.5. The cooling surface is the surface in the inner region of the cooling section, which can come into contact with the flowing fluid between the inlet opening and the outlet opening. Not included in the cooling surfaces are the surfaces which are formed by building walls, in particular when installed. Preferably, the surface enlarging means are arranged only between the inlet opening and the outlet opening. To achieve a particularly good cooling effect, it is preferred if the ratio of the maximum dimension of the surface enlarging means in the longitudinal direction to the minimum distance of the inlet opening from the outlet opening in the longitudinal direction is in the range from 0.6 to 0.98. The maximum dimension in the longitudinal direction is the distance between the most widely spaced points of the surface enlarging means in the longitudinal direction to each other in several elements.

In a preferred embodiment, the surface enlarging agent is arranged or fixed on the first outer surface of the body, wherein an at least regionally indirect or direct contact between the surface enlarging means and the first outer surface exists. By placing the surface enlarging agent on the first outer surface becomes a achieved particularly good cooling effect, since the first outer surface is the warmest wall of the cooling section. The area-wise contact is used to increase the heat transfer from the outer surface into the oberflächenvergrößernde element. A surface contact is present in particular when the apparent contact surface of a geometrically connected contact is at least 4 cm ² .

The surface enlarging agent expediently consists of a metallic material, in particular of a steel. In this way, a particularly good thermal conductivity can be achieved within the surface enlarging agent. In this case, the surface-enlarging agent is preferably made of stainless steel, so that the occurrence of corrosion is prevented. Particularly preferably, the surface-enlarging agent can also be formed from black plate (non-descaled sheet). This results in a particularly cost-effective surface enlarging agent.

Preferably, the surface enlarging agent in the inner region of the cooling section is present such that it is in the range of the relative width of 0.3 to 0.7, preferably in the range of 0.1 to 0.37 and particularly preferably in the range of 0.63 to 0.9 is provided. The relative width is the coordinate in the transverse direction relative to the width of the inner region starting at the negative transverse direction of the inner width limiting wall. The positive transverse direction is defined by the fact that the longitudinal direction, the normal direction and the transverse direction form a right-handed coordinate system, wherein the longitudinal direction in the thumb direction, the normal direction in the index finger direction (positive from the building wall / contact surface in the interior) and the transverse direction in the middle finger direction. By "provided", it is to be understood that at least a part of the surface enlarging element is present in this area in the inner region of the cooling section. However, the term "provided" preferably means that the surface-enlarging element completely or completely preferably covers this area, as seen in the transverse direction - penetrates. By providing the surface enlarging means in the range of the relative width of 0.3 to 0.7, turbulent flow in the cooling path can be achieved because the surface enlarging means acts as a kind of turbulence generator. If the surface-enlarging agent additionally or alternatively in the range of 0.1 to 0.37 and / or in the range of 0.63 to 0.9 is provided, it is achieved that the heat input into the cooling fluid - by exploiting the In addition, the surface enlarging agent in this area can also ensure that heat is conducted from the edge region of the cooling section by conduction in the middle region. Conveniently, the ratio of a width of the surface enlarging agent to the width of the inner region is in a range of 0.05 to 0.95, preferably in a range of 0.1 to 0.9, and more preferably in a range of 0.15 to 0 , 85th Preferably, a distance in the transverse direction is provided between the surfaces forming the area of the inner region to the surface-enlarging element, in particular this distance should be at least 3 cm. In other words, this means that the surface enlarging elements in the transverse direction preferably do not extend completely to the side walls, so that the flow is not hindered in the corner or side areas of the cooling section.

In a preferred embodiment, the surface enlarging means has a plurality of support structures and a plurality of connection structures, wherein the support structures are arranged at least partially flat on the first outer surface and mounting portions, by means of which the support structures are fixable to the first outer surface, and wherein the connection structures connect the carrying structures together. As a result, a particularly light surface enlarging agent can be created, which can save costs. In other words, the surface enlarging means may be constructed by the support structures and the connection structures like a grid. The support structures are the areas of the surface enlarging agent, which serve in particular to connect the surface-enlarging agent with the body. Preferably, the extend Carrying structures along the longitudinal direction. In this way, it can be achieved that the temperature gradient in the longitudinal extension direction is compensated or at least reduced by the heat conduction of the support structures of the (usually) existing during operation of the hearth. The mounting areas serve to accomplish the attachment to the first exterior surface. The mounting areas can be formed by opening, thread or other means for fixing. The surface direct or indirect contact of the support structures with the first outer surface serves to conduct heat from the body into the support structures. For this purpose, the support structures may in particular rest completely flat or contact only partially with the first outer surface. Preferably, however, the majority of the support structures is flat. By "indirectly" or "directly" is to be understood that this surface contact by using intermediate elements or preferably directly - can take place without intermediate elements. The connection structures connect the support structures with each other, therefore serve in particular to derive by conduction heat from the support structures. The connection structures may protrude from the first outer surface in such a way that they can be flowed behind by the fluid at least in regions, so that the heat dissipation is increased. Alternatively or additionally preferably, the support structures also contact the first outer surface in a planar manner. In particular, the predominant part of the surfaces of the connecting structures, which face the first outer surface, is in surface contact with the first outer wall. Expediently, the connecting structures extend transversely to the longitudinal direction, preferably substantially in the transverse direction. By "substantially in the transverse direction" is to be understood that an angle of +/- 10 ° may be formed with the transverse direction. This ensures that a thermal expansion of the support structures causes no additional burden on the connection structures, so that they can be designed particularly thin-walled.

Preferably, the surface enlarging agent has a plurality of ribs. As a result, the transition of the heat flow is facilitated in the fluid in the cooling section. By "ribs" are to be understood in particular elements which protrude in the normal direction. The ribs preferably have at least two separate, in particular opposite, surfaces, which can be flowed around by the fluid in the cooling section. Preferably, the ribs are designed such that they form a first angle with the longitudinal extension direction, which is not equal to 0 and not equal to 180 °. As a result, a turbulence of the flow in the cooling section is achieved, so that the heat transfer can be increased. Preferably, however, the first angle is between 20 and 70 °. As a result, particularly compact ribs can be achieved, which in particular have only a small space requirement in the normal direction. It is particularly preferred if the ribs extend downwards, are therefore oriented counter to the longitudinal direction of extension. In this way, a particularly high degree of turbulence can be achieved, so that the cooling effect of the surface-enlarging elements can be increased. The ribs may be separate components or may be formed by reshaping areas of the surface enlarging agent. Preferably, however, the ribs are designed in one piece with the surface enlarging means. It is particularly advantageous if the surface enlarging means is made of sheet metal, when the ribs are formed by partial separation and forming these teilausgetrennten areas of the sheet. As a result, a production of the ribs can be achieved in a cost effective manner. Preferably, the ribs extend from a support structure of the surface enlarging agent. Alternatively or additionally, it is preferable if the ribs extend from a connection structure. In this context, the term "extending out" is to be understood as meaning that the ribs are connected to the respective structure by a material-locking connection. In particular, the ribs are originally materially bonded to the structures, this means that this material connection has not been achieved by a subsequent joining process such as welding or soldering. By this type of ribs connection a particularly high stability of the ribs can be achieved. The ratio of the maximum extent of the surface enlarging means, in particular of the ribs, in the normal direction from the first outer surface to the maximum distance of the contact surface in the normal direction to the first outer surface is preferably in a range of 0.15 to 0.87. This allows a particularly good heat dissipation can be achieved without too much heat input into the wall in the installed state. Particularly preferably, the ratio is in a range of 0.3 to 0.7, because it has been shown that this results in a particularly good turbulence of the cooling fluid flow is achieved, so that the heat flow can be increased in a simple manner.

Preferably, transverse reinforcements are arranged on the reinforcements, to which in turn connecting elements are arranged, by means of which the surface-enlarging means is fastened. In other words, this means that the reinforcement with the transverse reinforcements form a kind of conductor, to which connecting elements are arranged, by means of which the determination of the surface enlarging agent takes place. By this type of attachment of the surface enlarging agent on the one hand creates a particularly strong mechanical loadable connection and on the other also allows that the heat conductivity can be increased by the particularly good heat conducting reinforcements and transverse reinforcements, so that the heat dissipation is favored in the cooling section.

Preferably, more than one surface enlarging agent is arranged in the cooling section. By arranging a plurality of surface enlarging means within the cooling section, the heat transfer can be positively influenced.

The inlet opening preferably connects the cooling section to the interior in a fluid-conducting manner, and the inlet opening connects the interior space to the surroundings in a fluid-conducting manner. This makes it possible that the inlet opening is not directly connected to the environment and the existing fluid there. As used herein, "fluid conducting" means that the aperture or aperture is adapted to allow fluid to flow between the introducing portion of the aperture or the aperture to the diverting portion of the aperture or aperture.

In a preferred embodiment, the lower edge of the inlet opening is arranged above the lower edge of the feed opening. As a result, the flow resistance is minimized because the guided through the interior of the device air heats up there when the fireplace is operated and thus flows already in the direction of the longitudinal direction. The lower edge is that part or surface of the respective opening which delimits it in the negative direction of elongation. The positive direction of elongation is defined by the position of the inlet opening relative to the outlet opening in the longitudinal direction of extension.

Conveniently, the cross-sectional area of the inlet opening in the normal direction away from the interior of the component, to. In other words, this means that the inlet opening has an increased cross-sectional area from the interior to the cooling section. As a result, a kind of nozzle effect can be achieved so that the flow into the cooling section is favored. The cross-sectional area is the area of the cross section. The cross section is determined in a plane which is perpendicular to the extension direction of the respective opening (inlet / outlet opening). The direction of extension of the opening is, inter alia, the direction perpendicular to the walls - at least partially - surrounding walls. In particular, the extension direction can therefore also be the idealized direction of fluid flow through the openings. In order to ensure a sufficient fluid flow, it is advantageous if the sum of all cross-sectional areas of the inlet openings does not fall below 30 cm ² . Preferably, the upper edge of the inlet opening forms an angle of 30 ° to 60 ° with the longitudinal direction, wherein the relevant angle is to be measured away from the positive direction of elongation. This results in a particularly cost-effective increase in the cross-sectional area, since this angular range can be produced in a simple manner. The upper edge of the opening is the edge or surface which limits the opening in the positive longitudinal direction.

Preferably, the cross-sectional area of the inlet opening is rectangular. This allows a particularly simple production of the device can be achieved, so that costs can be saved. Alternatively or additionally, it is preferred if the cross-sectional area of the outlet openings (also) is rectangular. Appropriately, in particular an edge of the rectangular cross section may be oriented parallel to the longitudinal direction. This type of alignment of the cross-section facilitates the manufacture considerably, so that costs can be saved.

Conveniently, the cross-sectional area of the outlet opening is designed such that it has a transverse extent of at least 3 cm. In this way it can be ensured that the exiting fluid flow is not impeded in such a way that a cooling effect of the cooling section is prevented. The transverse extent is the average extent of the cross-sectional area of the outlet opening (also applies to the inlet opening) perpendicular to the longitudinal direction of extension. If several outlet openings are present, then it is preferred if all outlet openings have a transverse extent of at least 3 cm.

Preferably, the sum of the cross-sectional areas of all exit openings is greater than or equal to the sum of the cross-sectional areas of all entrance openings. The sum of the cross-sectional areas is the sum of the individual cross-sectional areas of the inlet and outlet openings. In the case of an opening which has a variable cross-section along the direction of extent, the sum of the smallest and the largest cross-sectional area of this opening is decisive for the summation. By designing at least equal outlet cross-sectional areas to the inlet cross-sectional areas, unfavorable stagnation of the cooling fluid in the cooling section can be prevented.

Advantageously, the cooling section has two outlet openings, which connect the cooling section fluidically directly with the environment. Through the use of two cooling holes can be achieved that these in their cross section smaller dimensions than would be possible with the use of only one outlet opening. In this way, the cross-sectional area of the entire outlet opening can be increased in a simple manner, and thus the advantages of the increased heat transfer in the cooling section that can be achieved thereby can be realized in a simple manner. By directly connecting with the environment, the running distance of the fluid can be reduced within the opening and thus flow optimized.

Conveniently, at least one of the outlet openings extends in the transverse direction. In other words, this means that this outlet opening can extend laterally away from the cooling section. As a result, a particularly short distance between the inner region of the cooling section and the environment is achieved, so that the flow resistance is reduced. The outlet opening may thus be oriented substantially perpendicular to the inlet opening. Preferably, however, all the outlet openings extend in the transverse direction, so that all these outlet openings have a low flow resistance due to the short run length. Preferably, at least two identical outlet openings each extend in a positive and a negative transverse direction. These two identical outlet openings are in particular seen at the same height in the longitudinal direction. In other words, this may mean that two equal outlet openings are led laterally outwards at the same height. Through this symmetrical arrangement of the outlet openings is achieved that they are equally flowed through, so that a homogeneous flow as possible / cooling of the inner region of the cooling section is achieved.

Preferably, an upper guide rail is arranged between two outlet openings and above the same. In this case, the upper guide strip is a component which is in particular formed integrally with the body of the component and projects from the body in a normal direction and in particular delimits the interior of the cooling section by this projection. By providing the upper guide bar can be achieved that an underflow of the Can be prevented above the outlet opening area. Preferably, the upper guide rail extends in the transverse direction and can connect two outlet openings with each other. "Connect" means that the upper guide rail is part of the two outlet openings or at least forms or surrounds part of these outlet openings. The upper guide rail expediently also has a contact surface, which is designed to be able to come into contact with a structural wall, whereby "contact" also means that these contact surfaces have a maximum distance to the structural wall of 5 mm when installed may, but preferably is arranged flat on the wall. By preferably integrally forming the guide rail with the body of the component, a secure mechanical fixation of the guide bar can be achieved on the body, which can withstand high thermal loads.

In a preferred embodiment, the upper guide rail on two guide surfaces, which are designed such that these guide surfaces are arranged to each other V-shaped. The guide surfaces limit the cooling section upwards, therefore form a kind of upper edge for the cooling section. Each of these guide surfaces preferably also forms an upper edge for the outlet openings. The upper guide rail can therefore connect the two outlet openings. "V-shaped" means in particular that the two guide surfaces have an outwardly facing normal, which has at least one component opposite to the longitudinal direction. In other words, this means that the two guide surfaces can form the legs of a V, wherein the V is closed in the longitudinal direction down. The two legs of the V formed by the guide surfaces need not necessarily be flat or straight, but may also be curved or bent. By this V-shape of the guide surfaces to each other, a flow resistance reduction can be achieved, which leads to that the flow velocity in the cooling section is increased. Preferably, the upper guide rail is constructed mirror-symmetrically, so that the flow resistance the two outlet openings, which are interconnected by the guide strips are the same size. As a result, as homogeneous a flow velocity profile as possible is achieved in the cooling section.

Furthermore, according to the invention an arrangement of a component is provided on a building wall, wherein the component extends along a longitudinal extension direction, and comprises a body, a cover and a cooling section, wherein the body extends in the longitudinal direction and encloses an interior at least partially together with the lid, wherein the lid is adapted to indirectly or directly guide the combustion gases of a hearth, the cooling passage being disposed on a first outer surface of a first wall of the body, the cooling path comprising a partition wall, an inlet opening, and an outlet opening Partition wall has a contact surface which is arranged on the structural wall, and wherein the inner region of the cooling section is formed by the gap between the structural wall and the first bearing surface, wherein the inlet opening is designed to be indirectly through this or direct air from the environment passes into the cooling section, wherein the at least one outlet opening is adapted to connect the environment directly or indirectly to the inner region of the cooling section, wherein the inlet opening is arranged below the outlet opening. By "formed is" is to be understood in this context that the inner region is at least partially formed by this gap, preferably completely through this gap. "Arrangement on the wall" is to be understood that this preferably rests completely flat on the building wall or that at least no gap greater than 5 mm between the wall and the contact surfaces or the contact surface is present. It is understood that the aforementioned features or development of the device can also find application for the device in the arrangement.

Fig. 1

eine Seitenansicht eines Bauelements;

Fig. 2

einen Schnitt durch ein Bauelement;

Fig. 3

einen weiteren Schnitt einer Ausführungsform des Bauelements;

Fig. 4

einen Schnitt durch eine alternative Ausführungsform des Bauelements;

Fig. 5

einen Ausschnitt aus einem Bauelement im Bereich der Auslassöffnungen;

Fig. 6

einen Schnitt durch einen Bereich des Bauelements;

Further advantages and features of the present invention will become apparent from the following description with reference to the accompanying figures. Single in Features disclosed in the embodiments shown may also be employed in other embodiments unless expressly excluded. Show it:

Fig. 1

a side view of a device;

Fig. 2

a section through a component;

Fig. 3

a further section of an embodiment of the device;

Fig. 4

a section through an alternative embodiment of the device;

Fig. 5

a section of a component in the region of the outlet openings;

Fig. 6

a section through a portion of the device;

The in the FIG. 1 illustrated embodiment of a component 1 comprises a body 2, which extends in the longitudinal direction L and is connected to a cover 4. That in the FIG. 1 illustrated component 1 in this case has a cooling section 6, which is limited in the transverse direction Q by two partitions 16 and up through the planar guide surface 42 of the upper guide rail 40. Above the guide rail 40 externally on the body 2, an insulating material 32 is attached, which serves to to reduce the heat transfer. The two parallel partitions 16 of the component 1 each have a planar contact surface 22, which has a normal in the normal direction N. The width of the inner region BI is determined in the illustrated embodiment by the minimum distance, which the two partition walls 16 have in the transverse direction Q to each other. The cooling section 6 is fluidly connected in the above area through the two outlet openings 20 with the environment U. The inlet opening 18 in the lower region of the component 1 has a cross-sectional area A _e , which is bounded below by the flat lower edge 19. Within the cooling section 6, a surface enlarging means 26 is arranged on the first outer surface 14 of the first wall 12. For fastening, this surface enlarging means 26 has an even number, in particular at least 6, 8 or 10, of mounting areas 35 in the form of oblong holes which extend in the longitudinal direction L. These Mounting regions 35 are arranged in the two support structures 34, which connect the oberflächenvergrößernde means 26 surface with the first outer surface 14. In each case extending in the transverse direction Q, the surface enlarging means 26 has a plurality of connecting structures 36, which connect the two support structures 34 together. In the illustrated embodiment, lamella-like ribs 38, which are aligned counter to the longitudinal direction L, are arranged on these connection structures 36.

In the FIG. 2 is a section through a component 1, wherein this sectional plane is defined by the normal direction N and the longitudinal extension direction L. The illustrated section in the FIG. 2 through the device 1 could be to the in the FIG. 1 illustrated embodiment fit. The illustrated embodiment has a first wall 12, which has the wall thickness WS. In the above back region of this first wall 12 extends in a negative normal direction N insulation material 32, which is bounded below by the upper guide rail 40. The upper guide rail 40 has a guide surface 42, which forms the upper edge for the outlet opening 20. In the interior 8, which is partially enclosed by the body 2 and the lid 4, is located in the area above the outlet opening 20 and below the lid 4 also insulation material 32 to hinder a heat flow. In the body 2 and the lid 4 reinforcements BE are arranged, which each have connecting portions 30. The cooling section 6 of the component 1 extends in the longitudinal direction L from the outlet opening 20 to the inlet opening 18 and the lower edge 19. In a negative normal direction, the cooling section 6 is limited by the contact surfaces 22 of the partition 16. Within this cooling section 6, a surface enlarging means 26 is arranged on the first outer surface 14 of the first wall 12, which ends flush with the upper edge of the outlet opening 18 downwards. On the first outer surface 14 opposite first inner surface 15 of the first wall 12 is a heat-conducting element 25, which in the illustrated embodiment - up to the length in the longitudinal direction L - identical to that in the cooling section 6 located surface enlarging means 26 is. In the first wall 12 opposite wall of the body 2, a feed opening 28 is provided, which is bounded below by the lower edge of the feed opening 29. Through this feed opening 28, a fireplace, not shown, 10 are inserted into the interior 8 of the device 1.

In the FIG. 3 is a section through a device 1 in a plane which is spanned by the normal direction N and the transverse direction Q, shown in the installed state. The component 1 has a total of at least four reinforcements BE, which are each located in a corner of the rectangular body 2. In the interior 8 of the component 1, a hearth 10 is arranged, which is pushed through the feed opening 28 into the interior 8. In the intermediate space between the wall B and the first outer surface 14 of the first wall 12 is the cooling section 6. The width of the inner region BI of the cooling section 6 is determined in the transverse direction Q by the distance between the two partitions 16 to each other. In order to prevent the fluid from escaping from the cooling section 6, the respective contact surfaces 22 of the two partition walls 16 lie flat against the structural wall B directly. In the cooling section 6, a fluid flow along the idialized flow direction S is to be achieved for cooling.

In the FIG. 4 a further section through a device 1 according to the invention is shown. The in the FIG. 4 illustrated embodiment is similar to the strong already in the FIG. 3 shown embodiment. Basically, these two embodiments differ in that in the FIG. 4 embodiment shown only has a partition 16. The width of the inner region BI of the inner region 24 of the cooling section 6 is determined in the illustrated embodiment by the minimum distance of the partition wall 16 in the transverse direction Q to the distal opposite outer surface of the body 2, which is in contact with the building wall B.

In the FIG. 5 is a part of a rear view of an embodiment of the device in the region of the two outlet openings 20 shown. The two identical outlet openings 20 are located at the same height and are interconnected by the upper guide bar 40. The two guide surfaces 42 of the upper guide rail 40 are V-shaped to each other, so that in this way a particularly low flow resistance deflection of the flow direction S is possible.

In the FIG. 6 an enlarged area of a section in the region of the outlet opening 20 is shown in the installed state, wherein the component 1 shown is arranged on a building wall B. In the FIG. 6 the transverse extent QS of the outlet opening 20 is shown. The contact surface 22 of the partition 16 in this case has a distance A in the normal direction N to the first outer surface 14 of the first wall 12.

LIST OF REFERENCE NUMBERS

1

- Component

2

- Body

4

- Lid

6

- Cooling section

8th

- Inner space

10

- Fireplace

12

- first wall

14

- first outer surface

15

- first inner surface

16

- Partition wall

18

- inlet opening

19

- Lower edge of the inlet opening

20

- outlet opening

22

- contact surface

24

- Interior

25

- Wärmeleitelemente

26

- Surface enlarging agent

28

- Feed opening

29

- Lower edge of the feed opening

30

- Connection sections

32

- insulation material

34

- Carrying structures

35

- Mounting area

36

- Connection structures

38

- ribs

40

- upper guide rail

42

- Guide surfaces

A

- distance

A _a

- Cross-sectional area of the outlet opening

A _E

- Cross-sectional area of the inlet opening

B

- Building wall

BE

- Reinforcement

BI

- Width of the interior

L

- Longitudinal direction

N

- normal direction

Q

- Transverse direction

QS

- transverse extension

S

- Flow direction

U

- Surroundings

WS

- wall thickness of the first wall (12)

Claims (15)

Component (1), in particular for domestic use, which extends along a longitudinal direction (L),
comprising a body (2), a cover (4) and a cooling section (6), wherein the body (2) extends in the direction of longitudinal extent (L) and encloses an interior (8) at least in regions, together with the cover (4),
wherein the cover (4) is designed so that the combustion gases of a hearth (10) are indirectly or directly guided by this, wherein the cooling section (6) on a first outer surface (14) of a first wall (12) of the body (2) is arranged
the cooling section (6) comprising a partition wall (16), an inlet opening (18) and an outlet opening (20),
the partition wall (16) having a contact surface (22) which is designed to be arranged on a structural wall (B) in order to delimit the inner region (24) of the cooling section (6) from the environment (U),
wherein the inlet opening (18) is designed so that through this directly or indirectly air from the environment (U) enters the cooling section (6), wherein the at least one outlet opening (20) is adapted to the environment (U) or medium directly to the inner region (24) of the cooling section (6) to connect
wherein the inlet opening (18) is arranged below the outlet opening (20). Component (1) according to one of the preceding claims,
wherein the first wall (12) having the first outer surface (14) has a first inner surface (15) opposite thereto,
wherein on the first inner surface (15) heat conducting elements (25) are arranged. Component (1) according to one of the preceding claims,
wherein the component (1) surrounds the hearth (10) at least partially, and
wherein the hearth (10) is insertable through a feed opening (28) into the interior space (8). Component (1) according to one of the preceding claims,
wherein the body (2) has a rectangular inner and / or outer cross-section. Component (1) according to one of the preceding claims,
wherein the first outer surface (14) lies in a plane,
which is formed by the longitudinal direction (L) and a transverse direction (Q). Component (1) according to one of the preceding claims,
wherein inside the cooling section (6) a surface enlarging means (26) is arranged. Component (1) according to claim 6,
wherein the surface enlarging means (26) consists of a metallic material, in particular a steel. Component (1) according to one of claims 6 or 7,
wherein the surface enlarging means (26) comprises a plurality of ribs (38). Component (1) according to one of the preceding claims,
wherein the cross-sectional area (A _E ) of the inlet opening (18) in the normal direction (N) from the interior (8) of the component (1) increases away. Component (1) according to one of the preceding claims,
wherein the cross-sectional area (A _E ) of the inlet opening (18) is rectangular. Component (1) according to one of the preceding claims,
wherein the cross-sectional area (A _E ) of the outlet openings (20) is designed such that it has a transverse extent (QS) of at least 3 cm. Component (1) according to one of the preceding claims,
wherein the cooling section (6) has two outlet openings (20) which connect the cooling section (6) fluidly directly with the environment (U). Component (1) according to claim 12,
wherein between two outlet openings (20) an upper guide rail (40) is arranged. Component (1) according to one of the preceding claims,
wherein at least one of the outlet openings (20) extends in the transverse direction (Q). Arrangement of a component (1) on a building wall (B),
the component (1) extending along a longitudinal extension direction (L) and comprising a body (2), a cover (4) and a cooling section (6),
wherein the body (2) extends in the longitudinal direction of extension (L) and, together with the cover (4), encloses an interior space (8) at least in regions,
wherein the cover (4) is designed so that the combustion gases of a hearth (10) are indirectly or directly guided by this, wherein the cooling section (6) on a first outer surface (14) of a first wall (12) of the body (2) is arranged
the cooling section (6) comprising a partition wall (16), an inlet opening (18) and an outlet opening (20),
the partition wall (16) having a contact surface (22) which is arranged on the structural wall (B),
and wherein the inner region (24) of the cooling section (6) is formed by the gap between the structural wall (B) and the first outer surface (14),
wherein the inlet opening (18) is designed so that through this directly or indirectly air from the environment (U) enters the cooling section (6), wherein the at least one outlet opening (20) is adapted to the environment (U) or medium directly to the inner region (24) of the cooling section (6) to connect
wherein the inlet opening (18) is arranged below the outlet opening (20).

Images