BACKFIRE PREVENTION DEVICE FOR A SOLID FUEL COMBUSTOR, CAPABLE OF AUTOMATICALLY CLOSING A FLOW PATH OF AN UPPER FUEL SUPPLY PIPE

摘要

PURPOSE: A backfire prevention device for a solid fuel combustor is provided to prevent the backflow of flame by automatically closing a flow path of a fuel supply pipe in case flame flows back inside a fuel transfer cylinder.;CONSTITUTION: A backfire prevention device for a solid fuel combustor comprises a fuel transfer cylinder(1), a fuel supply pipe(10), a fuel supply port(12), an upper inclined plate, an overheat sensor(4), an electric damper(20), and a blocking plate(22). A fuel transfer screw axis(2) inside the fuel transfer cylinder transfers solid fuel to a combustion head. The fuel supply pipe is cut and inclined on the upper part of the fuel transfer cylinder at 45° angle. The fuel supply port is formed on the center of the fuel supply pipe. The upper inclined plate is attached on the fuel supply pipe. The electric damper is installed on one side of the upper part of the fuel supply pipe.;COPYRIGHT KIPO 2010