Sectional boiler made from cast iron - has joints with draining features preventing corrosion-inducing condensate formation

摘要

The sectional heating boiler is made of cast iron. The individual sections are stacked horizontally and carry liq. and the segments enclose the combustion chamber. The latter is closed at the top and bottom by corresp. water carrying closing elements up to the flue gas removal section. The sectional boiler can be operated without any condensate appearing on horizontal joints which could be corroded by condensate. No marked condensate is collected in the bottom region. The individual sections (1, 2, 3, 4, 5) are provided in their connection gaps (6) with ridge shaped covering draining edges. The elements (1) forming the combustion chamber floor are provided with ribs (10) which run in the combustion chamber (9) longitudinal direction and which form over the whole length an enclosed surface. The floor elements (1) form a tray which is concave on the side facing the combustion chamber.