Fire box for tube boiler - has central ceramic sleeve in hearth with burner at one end

摘要

The boiler (1) has a hearth (2) at the lower part of the boiler. The hearth is lined with a ceramic lining (3). The upper part of the hearth has a hot water piping system (4) with the enclosed flue passages (5). The fire box (6) consists of a central tube (7) made from ceramic material. The tube is closed at the ends (8,9) by two discs (10,11) also made of a ceramic material. The plates each have a central hole (12) whose dia. is less than the interior dia. of the tube. The burner has an atomiser (13) and a mixer (14) supported on the blocks (15).