Air circulation nozzle device for fluidized bed combustor

• Main Authors: BE DAL HEE, RYU SEONG HYEON, KIM SIN JU, YU JIWEON
• Format: Patent
• Language: Chinese; English
• Published: 01.11.2019
• Subjects: AIR; BLASTING; COMBUSTION APPARATUS; COMBUSTION PROCESSES; HEATING; LIGHTING; MECHANICAL ENGINEERING; METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN; WEAPONS

The present invention relates to an air circulation nozzle device for a fluidized bed combustor of a fluidized bed boiler. According to the present invention, an air injection nozzle supplying air toa fluidized bed combustion furnace of a fluidized bed boiler is protected by a nozzle protection member, and thus deformation attributable to a high temperature generated in the fluidized bed combustion furnace can be prevented. The present invention includes an air supply pipe (100) supplying air in a state of communicating with a fluidized bed combustion furnace (10) of a fluidized bed boiler, an air injection nozzle (200) provided in the air supply pipe (100) and injecting the supplied air to the fluidized bed combustion furnace (10), and a nozzle protection member (300) installed in the air injection nozzle (200) and protecting the air injection nozzle (200) from a collision with a solid fuel burned in the fluidized bed combustion furnace (10) or a flow medium for heat transfer. The air injection nozzle (200)