초록 ▼

A method and device are provided to enable optimizing combustion conditions of a continuous combustion device to produce low emissions of nitric oxide, carbon monoxide and hydrocarbons at all operative conditions. The continuous combustion device includes a slidable baffle to regulate, according to

A method and device are provided to enable optimizing combustion conditions of a continuous combustion device to produce low emissions of nitric oxide, carbon monoxide and hydrocarbons at all operative conditions. The continuous combustion device includes a slidable baffle to regulate, according to power levels, not only an airflow directly into a primary combustion zone and a secondary combustion zone but also an airflow into a fuel/air premix device to maintain the fuel/air ratio in the primary combustion zone optimized both at an average level and in local areas. Such that, low objectionate or harmful emissions can be reached without performance penalties of the combustion device, such as anti-ignition, flashback or flameout.

대표청구항 ▼

[ We claim:] [10.]10. A method of regulating an airflow in a continuous combustion device for optimizing combustion conditions for minimum pollutants and maximum efficiency comprising: regulating a fuel/air ratio in a primary combustion zone of the combustion device using a single adjustable baffle

[ We claim:] [10.]10. A method of regulating an airflow in a continuous combustion device for optimizing combustion conditions for minimum pollutants and maximum efficiency comprising: regulating a fuel/air ratio in a primary combustion zone of the combustion device using a single adjustable baffle in a joint area of air passages to a fuel/air premix device, a secondary combustion zone of the combustion device and the primary combustion zone respectively, to effect a substantially optimum proportionate distribution of an airflow to the fuel/air premix device, the primary combustion zone and the secondary combustion zone of the combustion device at all power levels the baffle being adjustable between a first position where air passes relatively unimpeded to the primary combustion zone, the secondary combustion zone and the premix device, and a second position where a larger portion of the air is deflected to the secondary combustion zone and less to the primary combustion zone and the premix device so that a total amount of air entering the primary combustion zone both directly or through the premix device is in substantially stoichiometric proportion to fuel fed into the primary combustion zone from the premix device.