EP3106775A2 - Solid fuel boiler - Google Patents

Abstract

The invention relates to a solid fuel boiler, comprising a heating gas duct (1) having a vertical, an upper end (1.1, 1.2) and a cleaning element (2) arranged in the heating gas duct (1), wherein for adjusting the cleaning element (2) in the longitudinal direction of Heizgaszuges (1) an adjusting element (3) is provided. According to the invention it is provided that the adjusting element (3) at the lower end (1.2) of the heating gas flue (1) is arranged.

Description

The invention relates to a solid fuel boiler according to the preamble of claim 1.

A solid fuel boiler of the type mentioned is from the patent document DE 10 2007 009 426 A1 known. This solid fuel boiler consists in particular of a vertical, an upper and a lower end having Heizgaszug and arranged in Heizgaszug cleaning element, wherein an adjusting element is provided for adjusting the cleaning element in the longitudinal direction of the Heizgaszuges. Apart from its cleaning function, the cleaning element embodied as a so-called turbulizer serves in particular to improve the heat transfer from a hot exhaust gas produced in a combustion chamber of the solid fuel boiler to the heating gas train, which in turn is enclosed or circulated within the solid fuel boiler, in particular by the heating circuit water of a heating system. As well as in the aforementioned prior art, even in the invention to be explained more regularly several such gas flues are arranged parallel to each other running to dissipate the total amount of exhaust gas can. The adjustment of the cleaning element, which as well as the typical manner tubular heating flue has a circular outer diameter, thereby causing the inside of the Heizgaszug adhering exhaust gas residues are scraped off and fall in Heizgaszug down into a corresponding collection chamber. The cleaning element itself is attached or suspended in the known state of the art at the adjustment element arranged above the cleaning element.

The invention has for its object to improve a solid fuel boiler of the type mentioned. In particular, the handling of the cleaning elements is to be improved or in particular facilitated in such a solid fuel boiler.

This object is achieved with a solid fuel boiler of the type mentioned by the features listed in the characterizing part of patent claim 1.

According to the invention, it is thus provided that the adjusting element is arranged at the lower end of the heating gas train.

In other words, the solution according to the invention is characterized in particular by the fact that the cleaning element is no longer actuated from above, but from below. This initially because of the cleaning process inside the Heizgaszuges gravitationally falling down exhaust residues initially seemingly absurd proviso reveals its underlying, considerable advantage only at second glance, because only thanks to this proviso, it is possible, which will be explained in more detail, the cleaning element easy to hang from above on the adjustment. An attachment as hitherto in the hanging cleaning elements, ie with corresponding small parts such as circlips, pins, etc., can be omitted, ie the cleaning element according to the invention can be easily pulled out of the Heizgaszug in a general cleaning of the solid fuel boiler without a connection between the Adjustment and the cleaning element must be solved.

Other advantageous developments of the solid fuel boiler according to the invention will become apparent from the dependent claims.

The sake of completeness is still on the patent document DE 198 28 767 A1 noted, but in which the cleaning element is not adjusted in the longitudinal direction.

The solid fuel boiler according to the invention will be explained in more detail with reference to the drawing of a preferred embodiment.

Figur 1

in Vorderansicht den erfindungsgemäßen Festbrennstoffheizkessel;

Figur 2

im Schnitt entlang der Linie A-A gemäß Figur 1 den Festbrennstoffheizkessel mit dem erfindungsgemäßen Verstellelement;

Figur 3

im Schnitt entlang der Linie B-B gemäß Figur 1 den Festbrennstoffheizkessel mit insgesamt sechs Heizgaszügen;

Figur 4

perspektivisch das erfindungsgemäße Verstellelement gemäß Figur 2 (ohne Reinigungselemente);

Figur 5

perspektivisch das erfindungsgemäße Verstellelement gemäß Figur 2 (mit Reinigungselementen);

Figur 6

in Draufsicht das erfindungsgemäße Verstellelement gemäß Figur 2 (ohne Reinigungselemente);

Figur 7

als Seitenansicht das erfindungsgemäße Verstellelement mit Reinigungselementen in gekippter Position; und

Figur 8

als Seitenansicht eine Sensoreinrichtung zur Erfassung der Position des Verstellelements.

It shows

FIG. 1

in front view of the solid fuel boiler according to the invention;

FIG. 2

in section along the line AA according to FIG. 1 the solid fuel boiler with the adjusting element according to the invention;

FIG. 3

in section along the line BB according to FIG. 1 the solid fuel boiler with a total of six heating gas trains;

FIG. 4

in perspective the adjusting element according to the invention FIG. 2 (without cleaning elements);

FIG. 5

in perspective the adjusting element according to the invention FIG. 2 (with cleaning elements);

FIG. 6

in plan view the adjusting element according to the invention FIG. 2 (without cleaning elements);

FIG. 7

as a side view of the adjusting element according to the invention with cleaning elements in tilted position; and

FIG. 8

as a side view of a sensor device for detecting the position of the adjusting element.

The Festbrennstoffheizkessel shown in the figures consists in a conventional manner of a vertical, an upper and a lower end 1.1, 1.2 having, preferably tubular heating flue 1 and arranged in a hot gas 1, preferably designed as a helical coil cleaning element 2, wherein for adjustment of the cleaning element 2 in the longitudinal direction of the hot gas flue 1 preferably (not shown separately) provided motor-driven adjusting element 3 and the cleaning element 2 is made to fit the heating flue 1.

Such a solid fuel boiler works as follows: In the combustion chamber 5, a solid fuel, especially wood, burned. Resulting ash falls through a arranged at the bottom of the combustion chamber 5 combustion grate in a first ash collecting space and is transported there by means of a motor-driven auger. Hot exhaust gas from the combustion chamber 5 flows through a arranged at the upper end of the combustion chamber 5 outlet to the first three hot gas trains 1 and down into a Abgaswenderaum 6, below this space a second ash collecting space is arranged with a further motor-driven screw conveyor. After a flow reversal, the already slightly cooled exhaust gas flows through the remaining three hot gas flues 1 upwards and from there to an exhaust gas discharge port 7, wherein the cooling of the exhaust gas takes place at the surrounded by Heizkreiswasser Heizgaszügen 1. The solid fuel boiler thus serves, by the combustion of wood to heat water, which is then used in a building, especially for heating purposes.

As already explained, it is essential for the solid fuel boiler according to the invention that the adjusting element 3 is arranged at the lower end 1.2 of the heating gas flue 1.

To be able to clean the solid fuel boiler, for example, in a general cleaning particularly simple, it is particularly preferably provided that the cleaning element 2 (at each operating time) by gravity on the adjusting element 3 is formed lying. In other words, it is thus provided that the cleaning element 2 and the adjusting element 3 are designed to cooperate with one another without fastening, ie, the cleaning element 2 can simply be lifted upwards, in which context in particular with reference to FIG FIG. 2 Furthermore, it is particularly preferred that the cleaning element 2 is easily plugged into the upper end 1.1 of the heating gas train. So if the solid fuel boiler, for example, cleaned or dismantled for other reasons, it is only necessary to open a lid on a arranged at the upper end of Heizgaszuges 1 chamber 8 and merely inserted into the heating flue 1 and at its lower end only on extract the cleaning element 2 resting on the adjustment element 3 from the hot gas flue 1. Of course, the same advantages also result in the assembly of the solid fuel boiler according to the invention.

In order to ensure a reliable interaction between the cleaning element 2 and the adjusting element 3, on the adjusting element 3, a support area 3.1 for the cleaning element 2 provided. In addition, it is preferably provided that the cleaning element 2 at its Verstellelementseitigen end with the adjusting element 3, in particular with the support area 3.1, cooperating abutment 2.1 has. This abutment 2.1 is preferred, as in particular from FIG. 7 can be seen, formed annular. In addition, it is preferably provided that the support area 3.1 for guiding the cleaning element 2, in particular the abutment element 2.1, is formed like a trough, wherein moreover with reference to FIGS. 7 and 8 is preferably provided that the support area 3.1 is designed to be limited movably mounted on the adjusting element 3. Furthermore, in this context (see in particular FIG. 5 ), to exclude lateral slipping, also still on the formed as a sheet metal strip abutment element 2.1 preferably a transversely to the main extension direction arranged, also cooperating with the support area 3.1 Zusatzwiderlagerelement 2.2. Overall, results in this way and in cooperation with the heating gas 1, as without further imaginable, a good leadership of the cleaning element 2 on the adjustment. 3

In order to be able to adjust the adjusting element 3 in a simple manner, it is further particularly preferred that it (about 20 ° in both directions from the horizontal) is rotatably mounted to the hot gas flue 1. In order to avoid during the rotation of a collision of the adjusting element 3 with the Heizgaszug 1 and with its lower end 1.2 is still, as from FIG. 2 can be seen, preferably provided that the cleaning element 2 is formed projecting beyond the lower end of the 1.2 Heizgaszuges 2.

As is already apparent from the above explanations for the figures, it is furthermore particularly preferably provided that the adjusting element 3 is designed to actuate at least two (here six) cleaning elements 2, in which case it is further particularly preferred that the adjusting element 3 rocker-like manner about a rotation axis 3.2 is formed pivotable. In this case, support areas 3.1 for the cleaning elements 2 are also provided on both sides of the axis of rotation 3.2 (parallel to the axis of rotation). As can be seen, it is thus possible with several cleaning elements 2 in a simple manner to move them back and forth with a single drive (not shown separately), by a corresponding pivoting of the rocker (see in particular FIGS. 7 and 8 ). For pivoting the rocker is in the FIGS. 7 and 8 shown provided on the axis of rotation 3.2 beginning and beyond the right side of the rocker protruding lever 9.

As continues from the FIGS. 7 and 8 can be seen, finally, for control technical monitoring of a possible cleaning process or the like preferably provided that the adjusting element 3, a transmitter element 3.3 is arranged for a device 4 for detecting the position of the adjusting element 3. This encoder element 3.3 is preferably formed as a rotationally connected to the adjusting element 3 cams. In addition, the device 4 for detecting the position of the adjusting element 3 preferably has a cooperating with the cam sensor element 4.1, in particular a displaceable and rotatably mounted roller on.

LIST OF REFERENCE NUMBERS

1

heating gas

1.1

Upper end of Heizgaszuges

1.2

lower end of the heating gas train

2

cleaning element

2.1

Abutment member

2.2

Additional abutment member

3

adjustment

3.1

support area

3.2

axis of rotation

3.3

transmitter element

4

Device for detection

4.1

sensor element

5

combustion chamber

6

Exhaust turning space

7

Exhaust gas discharge port

8th

chamber

9

lever

Claims (10)

Solid fuel boiler, comprising a vertical, an upper and a lower end (1.1, 1.2) having Heizgaszug (1) and a Heizgaszug (1) arranged cleaning element (2), wherein for adjusting the cleaning element (2) in the longitudinal direction of the Heizgaszuges (1) an adjusting element (3) is provided,
characterized,
that the adjusting element (3) at the lower end (1.2) of the Heizgaszuges (1) is arranged. Solid fuel boiler according to claim 1,
characterized,
that the cleaning element (2) is formed by gravity on the adjusting element (3) resting. Solid fuel boiler according to claim 1 or 2,
characterized,
that the cleaning element (2) is inserted into the upper end (1.1) of the Heizgaszuges. Solid fuel boiler according to one of claims 1 to 3,
characterized,
in that the adjusting element (3) is designed to be rotatable with respect to the hot gas flue (1). Solid fuel boiler according to one of claims 1 to 4,
characterized,
that the cleaning element (2) cooperating at its end a verstellelementseitigen to the adjusting element (3), abutment member (2.1). Solid fuel boiler according to one of claims 1 to 5,
characterized,
that a support area (3.1) for the cleaning element (2) is provided on the adjusting element (3). Solid fuel boiler according to one of claims 1 to 6,
characterized,
in that the adjusting element (3) is designed to actuate at least two cleaning elements (2). Solid fuel boiler according to one of claims 1 to 7,
characterized,
that the adjusting element (3) is rocker-like about a rotation axis (3.2) pivotable. Solid fuel boiler according to claim 7 and 8,
characterized,
that support areas (3.1) for the cleaning elements (2) are provided on both sides of the axis of rotation (3.2). Solid fuel boiler according to one of claims 1 to 9,
characterized,
that a transmitter element (3.3) for a device (4) for detecting the position of the adjusting element (3) is arranged on the adjustment element (3).

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