Burner

摘要

The invention relates to a burner comprising several substantially concentric channels, one (1) of which is arranged outside of all fuel supply conduits and is delimited by two pipes (2,3), whose axes (4) are placed in a parallel position and which are movable with respect to each other. According to said invention, diverting members (6) used for imparting a tangential component (7) to a fluid flowing in the channel (1) are carried by the first pipe (2) and are fixed thereto, the second pipe (3) comprises a drive portion (9) for driving the fluid outside the diverting members (6) and the angle of tangential deviation of the fluid at the downstream end (8) of the channel (1) depends on the axial position of the second pipe (3) with respect to the first pipe (2).

主权项

1. A burner comprising:
a plurality of substantially concentric ducts comprising: fuel supply ducts, and an additional duct, in which another fluid flows, located at the exterior of the fuel supply ducts, the additional duct being delimited by a first pipe and a second pipe whose axes are parallel and which are mobile in relation to one another along an axial direction; diverting members defined in the additional duct by channels supplied with the other fluid and used to impart a tangential component to the other fluid, the diverting members being fixedly carried by the first pipe and the diverting members being open in the direction of the second pipe, the second pipe including a drive portion to drive from upstream towards downstream the other fluid outside the diverting members according to an angle of a tangential component at a downstream end of the additional duct which depends on axial position of the second pipe in relation to the first pipe, the drive portion being oriented, according to a radial direction, defined as an increase in a distance from the first pipe for a displacement according to the axial direction from upstream towards downstream.