| 摘要 |
FIELD: power industry.SUBSTANCE: rear casing for air flow control, which is meant for being used in a burner, includes a housing, the first inlet hole, an annular collecting chamber, an annular mixing chamber, an annular wall and the first and the second air flow holes. The housing has front and rear ends and a longitudinal axis passing between the above ends. The first air inlet hole is made in the housing. The annular collecting chamber for air collection is located in the housing and interacts with the first inlet hole. The annular mixing chamber for mixing of air flow is located in the housing. The annular wall divides collecting and mixing chambers. The first and the second airflow holes pass between the collecting and mixing chambers and have the first and the second height respectively, which are the part of the annular wall height. Height of the first air flow hole is larger than height of the second air flow hole.EFFECT: invention allows improving efficiency and reducing hazardous emissions.19 cl, 8 dwg |
