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在同一炉具上为了加快灶事速度或土暖气的供热强度,往往采用吹风机鼓风的方法。这种方法能提高供给空气的压力,增强它对煤层的穿透能力,因而增大了空气的流量,所以强制通风是提高供热强度(每小时提供的有效热量)的有效方法。我们做了一次试验,用同一炉具,一为用25瓦风机鼓风;另一则为自然通风,其供热强度、热效率和小时耗煤量如附表的Ⅰ、Ⅱ项所示。从数据看出,采用强制通风明显地增大了供热强度(约增大80％),热效率则无差别,排烟温度相应有所提高(增30％),说明燃烧效果有所增强而排烟损失有所增大。若采用土暖气则
On the same stove, in order to speed up the cooking speed or the heating intensity of the soil heating, a blower blower is often used. This method can increase the pressure of the supply air, increase its penetrating ability to the coal seam, and thus increase the air flow, so forced ventilation is an effective method to increase the heat supply intensity (effective heat provided per hour). We have done a test with the same stove, one with a 25-watt blower; the other with natural ventilation, and its heating intensity, thermal efficiency, and hourly coal consumption are shown in Tables I and II. From the data, it can be seen that the use of forced ventilation significantly increases the heating intensity (approximately 80% increase), the thermal efficiency is no different, the exhaust temperature correspondingly increased (by 30%), indicating that the combustion effect has been enhanced and ranked Smoke losses have increased. If you use soil heating