BURNER NOZZLE, BURNER AND A SURFACE TREATMENT DEVICE

摘要

A burner nozzle is disclosed, comprising a nozzle body that includes a slit such that a line passage to the slit opens in an outlet face surface at the surface of the burner nozzle body. A plurality of channels is connected to the slit. A group of first channels is connected to a source of oxidizing substance, and a group of second channels is connected to a fuel source. Each of the first channels and second channels have a circumferential passage to the slit at a non-zero distance from the outlet face surface. Furthermore, each of the first channels and second channels is formed to output a directed tubular flow towards a side wall of the slit, or towards a circumferential passage in a side wall of the slit. A safe pre-mixed burner configuration is achieved. A burner and a surface treatment device incorporating the burner nozzle are also disclosed.

主权项

1. A burner nozzle (100) that comprises:
a nozzle body (102) that includes a slit (106), a line passage (104) to the slit opening in an outlet face surface (150); a plurality of channels (112,114) connected to the slit (106), characterized in that a group of first channels (112) is connected to a source of oxidizing substance (120), and a group of second channels (114) is connected to a fuel source (122); each of the first channels (112) and second channels (114) have a circumferential passage (110) to the slit at a non-zero distance from the outlet face surface (150); each of the first channels (112) and second channels (114) is formed to output a directed tubular flow towards a side wall of the slit (106), or towards one or more circumferential passages (110) in a side wall of the slit (106).