分析了影响管式加热炉热效率的因素，主要包括过剩空气系数、不完全燃烧、排烟温度等。
Influencing factors on heat efficiency of tubular heaters are analyzed, which mainly include excess air factor, imperfect combustion and exhaust temperature.
使烟道吸力与煤气压力相适应，测量分烟道中废气的含氧量并加以校正，以保持一定的空气过剩系数，使燃烧处于最佳状态。
Gas flue suction and pressure to adapt, measuring points in the flue gas exhaust and the oxygen content to be corrected in order to maintain a certain excess air ratio, so that burning at its best.
在燃磷量不变情况下，最高燃烧温度、壁面最大热流和平均热流均随过剩空气系数的增大而减小，但烟气出口温度缓慢增加。
Under the condition of constant phosphorus mass flow rate, the smog exit temperature would increase slowly while other parameters would decrease with increasing excess air coefficient.
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