| 摘要 |
PROBLEM TO BE SOLVED: To improve the durability of a red-heat body as compared with before by suppressing the height dimensions of a radiation-type heating machine product. SOLUTION: Outside flame is formed at the space part between a red-heat external cylinder 28 and an inner cylinder 34 of a radiation-type machine, a combustion gas and secondary air are passed through the space part, flame, the combustion gas, and the secondary air are directly brought into contact and mixed, thus improving exhaust gas characteristics. Also, since the inside of the inner cylinder 34 is blocked, the red-heat outer cylinder 28 and the inner cylinder 34 are uniformly baked. Also, by eliminating the edge of the lower end of the cylinder 34 and providing a bottom plate 36, flame heats the bottom plate 36 and circulates heat to the entire inner cylinder 34, thus preventing the temperature from being excessively raised partially. Also, the flame from the side of a burner, so that the flame is in a horizontal direction, thus suppressing the height of the flame in a vertical direction and reducing the height of a product.
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