| 摘要 |
PURPOSE:To decrease noise propagating inside of a feed and exhaust cylinder, and to facilitate to remove soot accumulated inside thereof, in a combustor of forced feed and exhaust type. CONSTITUTION:A feed and exhaust cylinder A is composed of a triple cylinder structure, consisting of an external cylinder 1, an internal cylinder 2, and a cylinder 3 for soot to be adhered. The cylinder 3 for soot is arranged to form a space 9 between it and the cylinder 2, as well as to have a number of small holes 8 on the surface thereof, and the surface of an external circumference 10 around its top end is constructed so as to be moved slidably along the inside surface of the internal cylinder 2. With such a structure, a silencing function of resonance type by a number of small holes 8 and a space 9 can be obtained. At the same time, removal of adhesives such as soot on the cylinder 3 can be facilitated by extracting the cylinder 3 out of a feed and exhaust cylinder. |
