| 摘要 |
PURPOSE:To provide a burner which can maintain a good burnability with a relatively small input and yet has a high efficiency of far infrared ray radiation by providing a secondary radiation mass in front of an infrared rays radiation mass with a suitable space inbetween, said secondary radiation mass having area greater than the infrared radiation mass. CONSTITUTION:When gas mixture burns all over an infrared rays radiation mass 3, the infrared radiation mass 3 becomes red-hot at a relatively high temperature (about 600-700 deg.C), and radiates infrared rays toward a secondary radiation mass 7. Due to the reflection heat by the secondary radiation mass 7, the surface of the infrared rays radiation mass 3 is maintained at a high temperature enough to present a good burnability even if the burning amount is small. Meanwhile, since the surface area of the secondary radiation mass 7 is made larger than that of the infrared rays radiation mass 3, a relatively low temperature (about 400-500 deg.C) is maintained. Therefore, a large amount of infrared rays (far infrared rays) of a long wave length are radiated from the surface of the secondary radiation mass 7 by low-temperature radiation.
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