MULTIPLE-JET GAS BURNER Russian patent published in 2003 - IPC

FIELD: power mechanical engineering; burners working on natural gas at forced delivery of air intended for hot-water boilers. SUBSTANCE: proposed multiple-jet gas burner air supply chamber, flame tube and gas supply chamber arranged between them; holes found in end walls of this chamber receive mixers mounted hermetically and made in form of tubes; each tube is provided with row of cylindrical passages in its wall located inside gas supply chamber; it is provided with unit for avoidance of back-flash into mixer which is made in form of cylindrical passages whose axes are located at angle of 25-35 deg. relative to longitudinal axis of mixer tube; point of intersection of axes of passages lie inside tube at distance from outlet section of its cylindrical part equal to 0-1.5 of inner diameter of said part of tube. EFFECT: enhanced reliability; simplified construction and reduced power requirements. 2 cl, 2 dwg