Combustion chamber apparatus for combustion installations, especially for combustion chambers of gas turbine installations, and a method of operating the same

USRE33896E · kind E · reissue

Assignee

• Siemens Aktiengesellschaft · DE

Inventors

• Helmut Maghon · Mülheim an der Ruhr, DE
• Bernard Becker · Neheim, DE

Key dates

• Filing date: Oct 2, 1989
• Grant date: Apr 21, 1992
• Expiry date: Oct 2, 2009

Classification

• Technology area (CPC —): General

Abstract

In a combustion chamber having a substantially cylindrical housing and a flame tube .[.therein at an annular gap from a housing of the chamber,.]. .Iadd.with an end face, the flame tube being thermally movable and disposed in the combustion chamber and the flame tube being spaced from the cylindrical housing defining an annular gap therebetween, the improvement includes .Iaddend.a burner apparatus .Iadd.having a burner axis and .Iaddend.including at least one pilot burner .[.near an.]. .Iadd.having a head and being disposed in the vicinity of the .Iaddend.end face of the flame tube for generating a pilot flame .[.from.]. .Iadd., the pilot burner operating with at least one fuel from the group consisting of .Iaddend.natural gas .[.and/or.]. .Iadd.and .Iaddend.heating oil, an air supply channel surrounding the head .[.of the pilot burner.]., a premixing device for .[.natural gas.]. .Iadd.mixing gas and air .Iaddend.in the form of a ring channel system surrounding the head.Iadd., the ring channel system .Iaddend.including flow conduction walls defining an inflow cross section at an air inflow side of the ring channel system .Iadd.being .Iaddend.open toward the annular gap for conducti…