| 摘要 |
PURPOSE:To provide a compact fuel-burning equipment having improved flame stability at flame holes by disposing fuel gas supply nozzles on the inner side of vanes of a centrifugal fan, forming multiple flame holes in the burner unit, and radially juxtaposing separator walls that divide the circumferentially- arranged flame holes in the burner unit into sections. CONSTITUTION:Multiple flame holes 2, 3 are disposed in the periphery of the burner unit 1, and a centrifugal fan 4 comprising multiple vanes 4a and an electric motor 4b is attached to the burner unit 1 with the vanes 4a situated inside the burner unit 1 and the motor 4b outside of same. An air inlet 5 opened to the inside of the vanes 4a is formed in the burner unit 1 and a fuel gas supply nozzle 6 is disposed inside the vanes 4a to cause the primary fuel gas to be mixed with air inside the vanes 4a. The mixed gas is caused to flow from the vanes 4a to the flame holes 2, 3, and the flame is formed outside the flame holes 2, 3. Separator walls 11b, 12b are radially juxtaposed at an interval less than 1 cm. By integrally forming the centrifugal fan and burner, the whole equipment can be made compact, and, by annularly arranging the flame holes with the separator interval less than 1 cm, the calorific value can be made greater for the compact size while improving the flame stability.
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