| 摘要 |
FIELD: power industry. ^ SUBSTANCE: method of tangential furnace with angular multi-tier modular location of burners oriented at a tangent to conditional circle by supplying to the above burners the equal flow of fuel-air mixture and recirculation gases; at cut-out of burner assembly the flows of fuel-air mixture and recirculation gases, which are supplied to burner assemblies, are specified in compliance with the following relationships: Bi=(0.4684-0.045i)B, i=2, 3, 4; ri=0.0267i3-0.250i2+0.8033i-0.5507)r, i=1, 2, 3,4, where i - burner assembly number starting from the one that is cut-out (for which B1=0) in gas flow direction; Bi - fuel-air mixture flow supplied to i burner assembly; ri; - recirculation gas flow supplied to i burner assembly; B - total fuel-air mixture flow supplied to the furnace; r - recirculation gas flow supplied to the furnace. ^ EFFECT: invention allows improving fuel combustion quality and operating reliability by eliminating the temperature unevenness in active combustion zone and by preventing the slagging of water wall heating surfaces at cut-out of burner assembly. ^ 2 dwg |
