Combustion burner and boiler

• Main Authors: TAKAYAMA AKIMASA, MATSUMOTO KEIGO, YUASA ATSUSHI, TOMINAGA YUKIHIRO, DOMOTO KAZUHIRO, TSUKAHARA KEITA
• Format: Patent
• Language: Chinese; English
• Published: 28.11.2017
• Subjects: AIR; BLASTING; BURNERS; COMBUSTION APPARATUS; COMBUSTION PROCESSES; HEATING; LIGHTING; MECHANICAL ENGINEERING; METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN; WEAPONS

In this combustion burner and boiler, interference of ignition in a flame stabilizer is suppressed and flame stabilization performance is improved by providing: a fuel nozzle (61) which ejects a fuel gas that is a mixture of pulverized coal and air; a combustion air nozzle (62) which ejects a fuel gas combustion air from outside of the fuel nozzle (61); a secondary air nozzle (63) which ejects secondary air from the outside of the combustion air nozzle (62); and a flame stabilizer (64) which comprises a first flame stabilizer main body (71) which is arranged at the leading end of the fuel nozzle (61) and separated by a prescribed space from the inner wall surface (61a) of the fuel nozzle (61) and which forms a ring shape having as the center (O) an axial line along the ejection direction of the fuel gas. 在燃烧器和锅炉中，设置有：燃料喷嘴(61)，喷出混合有煤粉和空气的燃料气体；燃烧用空气喷嘴(62)，从燃料喷嘴(61)的外侧喷出燃料气体燃烧用空气；二次空气喷嘴(63)，从燃烧用空气喷嘴(62)的外侧喷出二次空气；以及稳焰器(64)，具有与燃料喷嘴(61)的内壁面(61a)隔开规定间隔地配置在燃料喷嘴(61)的顶端部并且呈以沿着燃料气体的喷出方向的轴线为中心(O)的环状的第稳焰器主体(71)，由此抑制稳焰器彼此发