Sectional Boiler

Abstract

A sectional boiler is described as made of cast iron or aluminum, in particular a condensing boiler, having essential annular sections, a front section, at least one rear section and at least one center section being provided, which form a combustion chamber having an essentially surrounding heat exchanger made of a sectional block, whose annular water chambers are connected to one another and which has gap-like heating gas flues, which extend between two adjacent sections with a mutually adapted geometry approximately radially and empty into an exhaust gas collection chamber, and having a return port and a feed port. The present system is based on the objective of optimizing a sectional boiler made of cast iron or aluminum as a condensing boiler particularly with respect to compactness and robustness. The present system provides that the return port and the feed port are located on opposite sides of the sectional block, the flow passes through the water chambers of the sections in series starting from the return port, and the individual sections are respectively provided hydraulically with overflow openings in only one place on the periphery and are connected by these on at least one side with an adjacent section.

Description

FIELD OF THE INVENTION[0001]The present invention relates to a sectional boiler, in particular a condensing boiler made of cast iron or aluminum materials.BACKGROUND INFORMATION[0002]Sectional boilers of this kind are made up of multiple boiler sections cast in one piece, which are arranged one behind the other and are normally connected to one another on the water side by hubs. A flow is thus created through the water channels and water pockets formed by the boiler sections between the return port and the feed port. Normally, generic sectional boilers have a lower return port and a feed port situated on top, which may be in the respective hub. The heating gases flow from the combustion chamber via downstream heating gas flues to an exhaust gas connection and on their way give off heat to the boiler water.[0003]In all existing boilers of this kind, the sections are arranged in series one behind the other. There is an annular front section, on which a combustion chamber door or a bur...

AI Technical Summary

Benefits of technology

[0009]The exemplary embodiments and / or exemplary methods of the present invention are based on the objective of optimizing a sectional boiler made of cast iron or aluminum as a condensing boiler particularly with respect to compactness and robustness.

Problems solved by technology

Disadvantages are the high costs associated with the material as well as the less favorable scaling conditions especially in welded constructions of sheet metal, and the greater sizes, which are difficult to assemble in tight spatial conditions.

In today's form and design, cast iron is not suitable for condensing heating operation, however, where condensed water is produced for a longer period.

All boilers having a heat exchanger connected downstream have the disadvantages of increasing the assembly costs because of the required pipe pieces and of raising the resistance on the water side.

The arrangement as a separate exterior component also results in cooling losses, which must be reduced by a suitable thermal barrier.

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