Burner tip and burner

Abstract

A burner tip having a burner outlet opening includes a burner tip part (21) which surrounds the burner outlet opening and has a burner tip wall (21A) with an end wall (67) forming a closed end of the burner tip part (21). The burner tip part (21) has in its interior a hollow space extending to the end wall (47), wherein the burner tip wall (21A) has an inner side facing towards the hollow space. A displacement body in the hollow space has an outer side facing towards the inner side of the burner tip wall (21A), forming at least one flow channel between the inner side of the burner tip wall (21A) and the outer side of the displacement body. In a first aspect, the displacement body (15) is connected to the inner side of the burner tip wall (21A) by supporting structures (56), which extend from the outer side of the displacement body to the inner side of the burner tip wall (21A). In a second aspect, swirl blades (32) project at least partially into the burner outlet opening (3), and the burner tip wall (21A). The swirl blades are each a single piece with that wall.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application is a 35 U.S.C. §§371 national phase conversion of PCT / EP2013 / 072422, filed Oct. 25, 2013, which claims priority of European Patent Application No. 12197209.5, filed Dec. 14, 2012, the contents of which are incorporated by reference herein. The PCT International Application was published in the German language.TECHNICAL FIELD[0002]The present invention relates to a burner tip, especially to a burner tip for high-temperature applications in synthesis gas production. In addition, the invention relates to a burner, especially to a burner for synthesis gas production.TECHNICAL BACKGROUND[0003]A burner for a synthesis gas reactor is described schematically in DE 10 2008 006 572 A1. This comprises an outer burner element having a tip with a cavity and with a displacement body arranged in the cavity. Guided around the displacement body is a cooling water passage for cooling the burner tip. The burner also comprises an inne...

AI Technical Summary

Benefits of technology

This patent describes a method to improve the stability and efficiency of a burner by using support structures to fix the position of a displacement body inside the burner-tip wall. Additionally, the use of specific manufacturing processes can create swirl vanes that form a blading assembly, which reduces the flow cross section for specific regions of a gas mixture flowing through the blading assembly. These technical effects can result in a more stable and efficient burner for industrial applications.

Problems solved by technology

Furthermore, the burner tips are relatively large, and therefore heavy, which reduces their manageability, for example in the course of maintenance.

For production engineering reasons, the wall thicknesses of the tubes or of the tip parts are typically at least 3 mm, which makes heat dissipation difficult and increases the susceptibility to temperature fluctuations.

Furthermore, suspended particles and cooling water can lead over time to a constriction of the cooling water passages in the region of the burner tip or even to blocking of the cooling water passages, which entails an increased maintenance requirement so that such constrictions can be discovered in good time.

Moreover, the materials from which the burner tips are produced are expensive and time consuming in processing since the parts of which the burner tips consist have to be welded together.

The welding of the parts for forming the respective burner tip is not simple since the typically used nickel-based superalloys require special welding procedures.

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