| 摘要 |
PURPOSE: A fuel injection device of an industrial boiler is provided to atomize the fuel by a fuel pressure without device for supplying steam or air, so that the structure thereof is simplified. CONSTITUTION: A fuel injection device of an industrial boiler comprises : a main body(20) having a return hole(23) at the center thereof, wherein a fuel supply hole(24) connected to the fuel supply line of a burner is formed at the outer circumference of the return hole and connected to a plurality of first distribution holes; an injection nozzle(30) including a center pipe(31) and a connection end(32) formed at a side thereof, a plurality of injection holes(36) at the other side thereof, wherein a receiving space(37) is arranged in the injection hole and composed of an extension plate, a ring type groove, and a swirl passage, and a swirler at the center thereof; a connecting element(40) arranged in a connection part of the main body and the connection end of the injection nozzle, wherein a plurality of second distribution holes are formed in equal intervals; and a cover(50) coupling the main body to the injection nozzle.
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