| 摘要 |
PURPOSE:To arbitrarily regulate an amount of consuming specified fuel by providing a number of working burners computing device, a quantity of income heat computing device, a multiplier, a subtractor, a divider, and a number of working burners computing device. CONSTITUTION:The number 8 of working burners for burners 7 for specified fuel is determined by means of an amount 5 of consuming specified fuel set by a number of working burners computing device 6, a burner 7 for specified fuel effects combustion according to the number of working burners, and an amount of consuming specified fuel is arbitrarily regulated. Meanwhile, a necessary quantity 12 of income heat is determined by a quantity of income heat computing device 11 by means of a boiler load command 1. A quantity 16 of income heat by the burner 7 for specified fuel is determined by multiplying an amount 5 of consuming fuel with a calorific value 15 of specified fuel by means of a multiplier 13. An amount 18 of income heat by a burner 24 for a non-specified fuel is determined by subtracting the amount 16 of income heat from the necessary amount 12 of income heat by means of a subtractor 17. An amount 22 of consuming non-specified fuel is determined by dividing the quantity 18 of income heat by a calorific value 21 of non-specified fuel by means of divider 19. The number 25 of working burners for burners 24 for non-specified fuel is determined from an amount 22 of comsuming non-specified fuel by means of a number of working burners comput ing device 23. The burners 24 for non-specified fuel effect combustion according to the deter mined number of working burners, and an amount of consuming non-specified fuel is automati cally regulated according to the amount 5 of consuming specified fuel. |
