OIL PREMIX BURNER

摘要

The invention relates to an oil premix burner, comprising a fuel element (1), a burner surface (2) on the outer lateral face, a distribution chamber (3) below the burner surface (2), a central oil injection device (4), a combustion air duct (5) connected to a fan arranged upstream, and an air heat exchanger for preheating the combustion air in the region of the burner surface (2). The aim of the invention is to optimize the combustion quality and the robustness in an oil premix burner, in particular with respect to the modulation capability. According to the invention, the air heat exchanger thus consists of at least one double tube element (6) comprising an inner tube (7) having in-line flow therethrough and an outer tube (8) concentric to the inner tube. The air heat exchanger is located above the burner surface (2) and consists of a plurality of double tube elements (6) having parallel flow therethrough, which are distributed symmetrically over the circumference and which extend axially parallel to the fuel element (1) and at least across a portion of the length thereof.