The potential for efficiency improvement depends mainly on the fuel type fired, the exit flue-gastemperature, the process fluid temperature, the low-level heat required, and the excess air etc.
The diameter of actual tangent circle is an important parameter for safety of boiler, the residual rotation is the key factor of fluegastemperature deviation at furnace exit.
实际切圆直径是锅炉稳定安全运行的一个重要参数，炉膛出口残余旋转是造成烟温偏差的主要原因。
3
Fluegastemperature fuzzy control dimly deduces turndown ratio of mixer valve according to temperature values of multipoints and their variations.