DE2822383A1 - HEAT EXCHANGERS, IN PARTICULAR FOR CHIMNEYS AND THE LIKE - Google Patents

Description

DESCRIPTION

The present invention relates to a heat exchanger, especially for chimneys and the like.

At present, fireplaces for burning wood for heating living spaces are still widely used. These fireplaces have the peculiarity of lending a special touch to the room in which they are installed, and for the I.
direction element,

make a nice decorative setting for the

One disadvantage of current fireplaces, however, is the extremely low heating output, as the heat is emitted into the room essentially only by radiation. Most of the chimneys are therefore not able to heat the room as required.

As a result, these chimneys have lost their function as heating elements and are only becoming flat because of this used their aforementioned pleasant properties.

The object of the invention is to eliminate the specified disadvantages and to create a heat exchanger, which can be used in such fireplaces and the heating capacity of the conventional fireplace significantly increased by having those from combustion

of wood, coal or the like. generated heat is almost completely used .

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In the context of the above object, the invention proposes the creation of a heat exchanger that is extremely can be installed easily and quickly and, above all, is constructed in such a way that the property of cosiness of the conventional fireplace is not affected.

The invention further proposes the creation of a heat exchanger which is easily made from commercially available Materials can be manufactured and moreover, from an economic point of view, competitive is.

The task is performed by a heat exchanger, in particular for chimneys and the like, which is characterized in that it has a body which can be arranged in the opening of the chimney and has an upper collector and a lower collector with a supply line or a return line for the heating fluid are in communication and with each other through a variety of pipe elements are connected, which are arranged so that they are swept by the flame and the combustion gases will.

Further features and advantages are clearer from the following description of a preferred exemplary embodiment of a heat exchanger according to the invention referring to the accompanying drawing. Show in it:

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1 shows an inventive inserted into a chimney Heat exchanger schematises in perspective Depiction;

Fig. 2 is a side view of the heat exchanger; 3 the heat exchanger seen from below;

Fig. 4 is a view of the heat exchanger in elevation seen from behind;

FIG. 5 shows a schematic illustration in section along the line V-V in FIG. 4.

According to the drawing, the heat exchanger according to the invention, in particular for chimneys and the like., a body generally designated by the reference number 1 on, which can be arranged in the opening of the chimney 2.

The body 1 has an upper collector 3 and a lower header 4, which usually, but not necessarily, consist of straight parts, which extend parallel to the chimney opening.

The upper collector 3 is preferably designed in such a way that it is located in the area of the lower edge of the extractor hood of the chimney 2 can be arranged and is therefore not visible.

The collectors 3 and 4 are provided with a feed line and a return line 6 for the heating fluid tied together. The lines 5 and 6 are connected to a heating network

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connected, that of radiators or radiators more conventional Type exists and can, if necessary, also be connected to a domestic hot water system.

The collectors 3 and 4 are connected to each other by a plurality of pipe elements 7, which are next to each other and in the Distance from each other, connected.

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The tubular elements 7 are preferably formed substantially C-shaped, so that their lower part the Fireplace on which the firewood is placed forms and also functions as a grate.

The outer tubular elements 7 are dimensioned such that they are at least partially in the area of the side ends the chimney opening so that in a certain sense they enclose the zone in which the combustion takes place.

In order to improve the heating capacity, the pipe elements 7 ', as shown schematically in FIG. 5, can be oval be formed with its major axis opposite the combustion zone.

To enable the chimney to be cleaned, the axis to be removed and to improve the chimney's draft, support feet 8 are provided below, which can be designed in various ways and the lower Keep part of the C-shaped pipe elements raised from the base of the chimney 2.

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In the area of the upper section of the pipe elements 7 a generally designated 10 air flap is provided, which at its lower end with a rod 11 is connected, which is preferably but not necessarily rotatably mounted on the tubular elements 7 and extends parallel to the collectors 3 and 4. The air flap 10 shown schematically in FIG. 2 has a dual function, namely to act as an element for regulating the draft of the chimney and on the one hand on the other hand, what is no less important is to divert the combustion gases so that they are in a Way to be performed, in which they again coat the pipe elements 7, whereby the heat exchange is improved.

As a result, the functioning of the inventive Heat exchanger explained. The firewood is placed on the fire parts, which, as already was mentioned, from the lower part of the C-shaped tubular elements 7 is formed, during the combustion, the flames sweep the tubular elements 7 through which circulates a heating fluid, usually water. In this way, the heating power becomes significant without impairing the pleasant properties typical of such chimneys. The flames and the combustion gases, which otherwise are withdrawn without utilizing their thermal energy, paint the pipe elements and release their Heat to the heating fluid circulating in the latter. In this way, over the upper collector 3 and

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.11

the feed line 5 heating fluid to the heating network fed, which consists of radiators or other similar Elements can exist in adjacent rooms or in the same room in which the fireplace is located located, can be installed.

The heat exchanger according to the invention naturally has the same effect in heating systems with natural circulation standard expansion vessel and can be used as an additional element a normal heating system equipped with a boiler or burner.

In this way, the thermal energy that would otherwise be lost is removed from the heat exchanger according to the invention exploited and recovered, which is consequently an obvious economic and practical one Represents advantage for the user.

An important feature of the heat exchanger according to the invention is that it can be used in a simple manner in chimneys of conventional design, without its aesthetic features to change, can be installed, since it is practically invisible because it is more or less is very close to the rear wall of the chimney opening and also not an obstacle for certain work, such as lighting and normal cleaning of the fireplace.

It also requires the installation of the heat exchanger The latter cannot be modified in the chimney, besides

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Heat exchangers can easily be removed or placed in another chimney when not in use «If required by the system to which the heat exchanger is connected, control instruments can also be installed.

The above statements show that the object set at the beginning is achieved by the present invention it should be emphasized in particular that the functionality of the conventional Fireplaces is much improved.

The invention can be modified in many ways and

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can be varied without going beyond their limits, Furthermore, all technical details, such as the connections between the headers and the pipe elements, as well as all structural details, as well the materials and dimensions used can be chosen at will depending on the requirements.

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Claims (7)

PATEN TANvVALT O. BERNHARD RICHTER 85 NÜRNBEKQ Beeihovenstru "s10 - Telephone (0911) 595015 <■ * ■> Μδί 1S78 -Jf- Silvio CIACCONI - Via Alcuino, i8 ~ MILANO - ITALY HEAT EXCHANGERS, IN PARTICULAR SPECIALIST CUSTOMERS 1.J heat exchangers, especially for chimneys and the like, characterized in that it has a body (1), which can be arranged in the opening of the chimney (2) and an upper collector (3) and a has lower collector (4) with a supply line (5) or a return line (6) for the heating fluid are in communication and are connected to one another by a plurality of tubular elements (7), which ' are arranged so that they are swept by the flame and the combustion gases. 2, heat exchanger according to claim 1, characterized in that that the pipe elements (7) are arranged next to one another and at a distance from one another. 3. Heat exchanger according to claim 1 or 2, characterized in that the tubular elements are substantially Are C-shaped, the lower section 809849/0744 the pipe elements (7) can serve as a fireplace and as a grate for the support of the firewood. 4. Heat exchanger according to one of claims 1 to 3, characterized in that the outer tubular elements (7) are designed such that they are at least for * If Part of lying on the side wall of the opening of the chimney (2). 5. Heat exchanger according to one of claims 1 to 4, characterized in that the tubular elements (7) have a substantially oval cross-section, the larger of which Axis d < sit. Axis of the fireplace runs opposite, 6. Heat exchanger according to one of claims 1 to 5, characterized in that support feet (8) are provided in the area of the lower part of the body (1), to keep the pipe elements (7) raised with respect to the chimney tray and thus improve the draft and to facilitate cleaning of the chimney (2). 7. Heat exchanger according to one of claims 1 to 6, characterized in that an air flap (10) is provided in the region of the upper portion of the pipe elements (7), which is connected at the bottom to a rod (11) rotatably mounted on the pipe elements (7) and is adjustable in order to regulate the draft of the chimney (2) and to direct the combustion gases onto the pipe elements (7) for the purpose of improving the heat exchange. 809849 / 07U 8 heat exchanger according to one of claims 1 to 7, characterized in that the upper collector (3) is so arranged in the area of the lower edge of the chimney hood is. that it is not visible. 809849/0744