| 摘要 |
PURPOSE:To reduce production of noise in a burner through uniformization of a secondary air, by installing a secondary air plate, having a secondary air port and a flame holding air port, between the inner frames of a burner, and between the inner frame and the outer frame of the burner. CONSTITUTION:A burner is provided with two burner inner frames 5a, integrally molded by means of an Al extruding material, each including a mixing chamber 1, clamping a burner port 2 and flame holding air 6 formed on both sides of the burner port parts 2, and secondary air plates 4a and 4b which have a number of secondary air ports 8 and flame holding air ports 7 between the burner inner frames 5a, and the burner inner frame 5a and an outer frame 5b. A secondary air is uniformly fed from a secondary air feed part 13, positioned on the upper stream side of a burner, to a secondary air chamber 3 at a low speed, and spouts out through the secondary air plates 4a and 4b. |
