burner

Abstract

The burner comprises a supporting body having a first and a second tubular elements (2a, 2b), where the volume positioned between the first and the second tubular elements (2a, 2b) defines at least a first duct (3) for the flow of a combustive fluid and where the second tubular element (2b) defines at least a second duct (4) for the flow of a combustion fluid; the second tubular element (2b) comprising a union element (12) defining an extremity section of said second duct (4); a combustion head (15) associated with the supporting body (2) and comprising diffusing means (9), communicating with the first duct (3) and having a plurality of openings (16) for the flow of the combustive fluid towards a combustion area (17), where the diffusing means (9) comprise at least two diffusing elements (9a, 9b, 9c) having relative openings for the flow of the combustive fluid and mobile reciprocally the one to the other to change the relative position of the openings, and dispensing means (11) of the combustion fluid, communicating with the second duct (4) and having a plurality of gaps (18) for the flow of the combustion fluid itself towards the combustion area (17); the diffusing elements (9a, 9b, 9c) are fitted around the union element (12), each of them has a plurality of openings defined by respective through cuts extending along a portion of the relative diffusing element (9a, 9b, 9c), where the openings have a substantially curvilinear extension and have a growing section proceeding outwards, and the union element (12) has at least a section (12a) which diverges proceeding towards the diffusing elements (9a, 9b, 9c), where the diverging section (12a) protrudes inside the first duct (3) and is suitable for directing the combustive fluid flow towards the outer portions of the openings.

Description

technical field [0001] The present invention relates to a burner that can be used in the industrial field and the civil field. Background technique [0002] Burners are used, for example, in the ceramics industry, in plants for the heat treatment of ceramic products, such as kilns and dryers. [0003] Burners of known type are generally made of a support body defining air supply ducts and combustion gas supply ducts, and a combustion head, said ducts being placed in communication with the combustion zone through the combustion head. [0004] The combustion head in turn includes an air diffuser having a plurality of openings which communicate with the air supply ducts to direct air to the combustion zone, and a gas distribution member having a plurality of flow gaps which communicate with the A gas supply conduit communicates to deliver gas toward the combustion zone. [0005] Thus, in the combustion zone, air is mixed with combustion gases. [0006] The diffuser of the co...

AI Technical Summary

Problems solved by technology

All this inevitably translates into increased investment costs, and more complex inventory management and maintenance

[0013] Another drawback of the known type of burner is that the holes formed near the central seat of the diffuser tend to become dirty and clogged over time, requiring periodic maintenance and / or replacement work, and in one working and Experience a rapid drop in performance between jobs

[0014] Another drawback of known types of burners consists in that they do not allow any flow regulation of the combustion fluid distributed towards the combustion zone

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