Catalytic burner arrangement

Catalytic burner arrangement comprising

• a catalytic burner unit with a housing having a reaction chamber in which a catalyst is arranged, wherein the catalyst is adapted to react a fuel with an oxidant for producing heat, the housing having a fluid inlet for supplying a fluid stream into the housing and a fluid outlet for exiting a fluid stream from the housing,
• a mixing unit forming a mixing chamber in which fuel and oxidant are mixed, wherein the mixing unit comprises a fuel inlet, an oxidant inlet separate from the fuel inlet, and a fuel-oxidant-mixture outlet, and
• wherein the fluid inlet of the catalytic burner unit merges with the fuel-oxidant-mixture outlet of the mixing unit for transferring the fuel-oxidant-mixture from the mixing chamber to the reaction chamber of the catalytic burner unit thereby establishing a main fluid flow direction,
• wherein the mixing chamber is prismatically or cylindrically shaped, having two basis plates and at least three side surfaces sides or a mantel side, wherein the fuel inlet and the oxidant inlet are arranged at the side surfaces or the mantel side, and the fuel-oxidant-mixture outlet is arranged at one of the basis plates,
• wherein the fuel-oxidant-mixture outlet of the mixing chamber is pipe-shaped and extends into the mixing chamber of the mixing unit, and wherein a length of the pipe-shaped fuel-oxidant-mixture outlet extends over the oxidant inlet and/or the fuel inlet, and
• wherein the fuel inlet of the mixing chamber is arranged upstream of the oxidant inlet of the mixing unit with regard to the direction of the main fluid stream from the mixing unit to the catalytic burner unit.