DE8520831U1 - Central heating boiler - Google Patents

Description

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BUDERUS AKTIENGESELLSCHAFT '
G 16-375 TP / F / St

Central heating boiler

The innovation concerns a central heating boiler with a reversing combustion chamber and several from the front area Heating gas pipes leading to a rear exhaust manifold.

In such a heating boiler, the heating gases are first returned to the front end of the reversing combustion chamber. here enter the hot gas pipes, which are parallel to the reverse combustion chamber lie, and then get to the exhaust gas painter.

The heating gas pipes are preferred as smooth pipes or one Form designed as tubes with embossments. It is common to them to be welded into a front, ring-shaped tube sheet that surrounds the front end of the reversing combustion chamber. As a result of one a certain distance between the tube sheet and the front wall thereby a front reversing chamber to be covered by the boiler door 1st.

The design and manufacture of the front turning chamber is relatively complex and expensive. A front tube sheet is required which is to be connected to the combustion chamber. Especially when it is made of stainless steel to produce a condensing boiler, high costs are incurred here. In addition, a very large and expensive boiler must be used. A heating boiler has also become known «in which the front reversible chamber was dispensed with (DE-AS 12 03 935). Here-

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at the heating gas pipes run through to the front wall. You are also through the boiler door from the front covered. They are connected to the combustion chamber via short pipe sockets. With this construction, the pipe socket adjusted and welded. The KesseltUr is still like before quite big.

The connection of the heating gas pipes to the combustion chamber should be simplified and made cheaper than all known constructions will. The aim is to create a door construction that is as small and inexpensive as possible.

According to the innovation, this is achieved in that the front Ends of the heating gas pipes bent in the direction of Umkehrbrennkaamer and old are directly connected to the cylindrical jacket of the same.

The bend of the hot gas pipes in the right or slightly blunt The angle allows it to be connected directly to the dumbbell of the reverse combustion chamber. There is no front tube sheet for Generation of the front yend chamber. There are also no additional pipe sockets required. The boiler door only has to be cover the reversal combustion chamber yourself, as there are no Yendekaaaer and there are no front pipe openings. This makes it simple, small and inexpensive.

A particular advantage is offered when using the heating boiler according to the innovation as a condensing boiler. Because of the resulting condensate, the heat exchange surfaces consist of expensive, corrosion-resistant material. By dispensing with the front tube sheet or additional tube sockets, savings are made here. By a slight The inclination of the heating gas pipes in the direction of flow, for example as a result of an inclination of the entire boiler, can be the result Condensate flows to the exhaust manifold and from there to the drain.

\ D. the attached drawing represents a single figure Example of the innovation as a longitudinal section through a heating boiler.

The boiler has a Umkehrbrennkamaer 1, with their cylindrical jacket 2 heating gas pipes 3 over bent front In the end. A di? #Kt are connected- In their straight area, the heating gas pipes have 3 indentations 5 for swirling the Heating gases. They open into a rear exhaust gas collector 6. The reversing combustion chamber 1 is up to the front wall 7 of the heating boiler pulled through, where it is covered by a boiler door 8. Of the The heating boiler has a certain incline towards the floor so that the condensate can flow off to the rear.

Claims (2)

BUDERUS AKTIENGESELLSCHAFT G 16-375 TP / F / St protection claims 1. Central heating boiler with a reversing burner and several from the front area of the reverse combustion chamber hot gas pipes leading to a rear exhaust collector, characterized in that the front ends (4) of the heating gas pipes (3) are bent in the direction of Uakehrburnkamner (1) and are directly connected to the cylindrical dumbbell (2) of the same. 2. Zentralheizun & akessel according to claim 1, characterized in that the heating gas pipes (3) run inclined in the direction of flow and are made of corrosion-resistant material exist.