DE8016060U1 - BOILER - Google Patents

Description

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DRt FRIEDRICH MAYER Zuüolnssßne · Representative before the European Patent Office

. ~. λι ₍ ι> ^, -. rf »λ Ui / I'foinssional RpprosontalivpB before tile European Pal. Office

DIPLt ^- PHYSt Qt FRANK Mandalalresaureos pres tofflce euföpoen des brevets

PATENT LAWYERS

Dieter Walter Koch * 7271 Bösingen Boiler

The invention relates to a heating boiler, particularly for solids, with one in thermal contact with the wall of the combustion chamber standing water jacket.

Such boilers are well known. The Heat is given off to the surrounding water jacket and this hot water is then used for heating purposes.

The chimney connection is located on the back of the boiler, from which the flue gases leave the combustion chamber.

It has now been found that boilers constructed in this way have an unsatisfactory degree of efficiency, as the flue gases are still at a temperature when they leave the boiler through the chimney connection, which is well above the minimum that is required,

IM does not cause any damage to the chimney *

Therefore boilers are well known, where an additional « Liehe heating surface is provided »in the Metalsinäätae used as a heat exchanger between the flue gases on the one hand and the surrounding water jacket on the other will. However, these additional heating surfaces are difficult to access for cleaning and, as a result of the indirect Heat transfer not yet a satisfactory improvement in Kossei efficiency *

In contrast, the object of the invention is to develop a boiler of the type mentioned in such a way that the exhaust gas temperatures are low and thus the efficiency is increased, while at the same time simple cleaning and maintenance is ensured.

This solves the invention according to the feature of the characterizing Part of claim 1.

By extending the lamellas directly into the combustion chamber, the heat exchanger surface is between the exhausting Flue gases and the surrounding water jacket increased. This ensures that the exhaust gas temperature drops, so that the efficiency of the boiler is increased.

A particularly advantageous embodiment of the invention is specified in subclaims 2 and 3.

The forced guidance of the smoke gases by means of the smoke guide plate around the slats on the one hand and the direct connection of the slats to the water jacket on the other ensure a further improvement in the degree of efficiency, because of the forced guidance of the flue gases

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By means of the smoke guide plate, a very good heat transfer between the exhausting smoke gases and the Iiämelled. erreiölit \ IIRD * The combination of this EaUoh- ¹ führüngsbieöheö NIIT the slats ensures ßenkung the exhaust gas temperature to the minimum necessary and an increase in the efficiency of the boiler to values between 80 and 90%.

Further refinements of the invention are the under spraying refer to.

Two exemplary embodiments of the invention will now be explained in more detail on the basis of drawings.

Show it:

FIG. 1: a longitudinal section through the first exemplary embodiment of the boiler according to the invention,

Figure 2: a longitudinal section through the second embodiment of the boiler according to. the lines I- I in Figures 3 and 4-,

Figure 5i shows a cross section through the boiler

along the line II-II in Figure 2 and

Figure M- : another cross-section through the

Boiler according to line III-III in Figure 2.

The combustion chamber 10 of the solid fuel boiler shown is of the combustion chamber walls 20 compared to the surrounding

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Water jacket 11 demarcated. On the floor of the combustion chamber 10 - the material to be fired 30 is burned off. The emerging Flue gases flow to the chimney connection 15

According to the first embodiment of the invention (Fig. 1) extend from the surrounding water jacket 11 two lamellae 12 and 14 vertically into the combustion chamber 10, so that the exhausting flue gases find an increased heat exchanger surface.

This means that the flue gases can give off a larger part of their heat content to the water jacket directly because the lamellas 12 and 14 are directly connected to the water jacket 11 are connected without the interposition of heat exchangers.

In the second embodiment of the invention Boiler (Fig.2- A-) is in addition to the fins 12, 13, and 14, a smoke guide plate 16 is provided, which ensures that the resulting smoke gases do not directly and in an uncontrolled manner from the material to be fired 30 to the Lamellae 12 and 14 (Figure 1) can get to the chimney connection 15, but a forced guidance the flue gases around the lamellas.

The smoke guide plate 16 is guided in the combustion chamber 10 in such a way that the smoke gases are only those indicated by arrows in FIG Can take away around the side surfaces of the slats 14, 13 and 12 and possibly still can give off existing heat directly to the water jacket 11.

In this second embodiment, the lamellae protrude

len in such a way into the combustion chamber 10 that between the smoke guide plate 16 and the undersides 121, 141 of the "two outer lamellas 12 and 14 on the one hand and lead between the combustion chamber wall 20 and the top 131 of the lamella 13 spaces 40 ″ or 50, through which the smoke gases can pass from one side of the lamellas to the other.

The lamellas extend so far into the combustion chamber 10 that the undersides 121, 132, 141 are offset in terms of height that the smoke guide plate 16 can consist of a flat bottom part 161, which is on the lower side 121 of the deeper located lamella 13 is applied. This automatically creates the desired flue gas path.

So that the smoke gases also flow past the front of the first lamella 14, the front part 162 of the Smoke guide plate 16 arranged at a distance from this first lamella, in addition, the smoke guide plate 16 still has an inlet part 163.

The smoke guide plate 16 can easily be pulled out in the direction of the opening of the boiler, see above that combustion residues can be easily removed and also the side surfaces of the lamellae 12 to be easily accessible to 14.

For this purpose, in the second embodiment, the bottom part 161 is laterally rails (not shown in C) or brackets.

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In the illustrated second embodiment are

3 slats provided, but it is also possible

already with one slat or with two slats 12 · «

and 14 as in the first embodiment (Fig. i) ■ \

a significant improvement in efficiency

achieve. An increase over more than 3 slats

however, as a rule, it only shows up to a limited extent

economical, as only with an increasing number of lamellas

a slight improvement in efficiency

is attainable.

In the second embodiment, it can still useful j

be, in the bottom part 161 of the smoke guide plate 16 i-, to provide a suitable recess in order to

combustion residues of the flue gases in the form of ash ^:

to collect. ; '

Xn considering the fact that all fuels, including - \

Solid fuels, on the increase in energy are concerned, the invention provides, as a con- V

ßtructively simple but highly effective solution for
Improvement of the efficiency with high maintenance friendliness and thus to reduce the consumption of
fossil fuels.

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Claims (5)

Protection claims: 1. Boiler, especially for solids, with a standing in thermal contact with the combustion chamber wall Water jacket, characterized in that the water jacket (11) in the area of the chimney connection (15) has at least one lamella (12, 14) which extends into the combustion chamber (10) (FIG. 1). 2. Boiler according to claim 1, characterized in that ice smoke guide plate (16) the lamella (12) so shields from the combustion chamber (10) so that the exhaust gases flow around the lamella (12) under forced control. 3 · Boiler according to claim 1 and 2, characterized in that that several lamellas (12,13,14 ·) are provided, which are arranged such that every second lamella (13) with her & r Uncereite (132) on the smoke guide plate (16) butts t; jd between its top (131) and the combustion chamber wall (20) leaves an opening (40) free. 4. Boiler according to claims 1-3 »thereby characterized in that the smoke guide plate (16) contains a flat bottom part (161) and a front part (162), the bottom part (161) lying horizontally in the combustion chamber (10) and the front part (162) at a distance runs vertically in front of the foremost lamella (14), (Figure 2). 3. Boiler according to Claim 2, characterized in that the smoke guide plate (16) can be removed from the combustion chamber (10). I Iff> I I I I I · II ·> Il I «· 1 (1 II * I · • III • »ι 5. Boiler according to claim. 4, characterized by that the smoke guide plate (16) in its floor hatchet (161) has a recess for receiving combustion residues.