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热风炉是冶金工业中广泛使用的设备。如图1所示的热风炉燃烧装置,由鼓风量大小不同的两台鼓风机向U型风管中鼓进冷风两只经过整定的压力计用来检测U型风管中不同测点的压力,它们分别在P_1和P_2时动作。当U型风管中的压力达到P_1时,停止鼓风机A的鼓风,当压力达到P_2时。(P_2>P_1)同时停止鼓风机A和B的鼓风。由
Hot stove is widely used in metallurgical industry equipment. As shown in Figure 1 of the hot blast furnace combustion device, the two blowers of different sizes of blast air into the U-shaped duct blowing cold air two set pressure gauge used to detect the U-duct pressure at different measuring points, They act on P_1 and P_2, respectively. When the pressure in the U-shaped duct reaches P_1, the blower of the blower A is stopped, and when the pressure reaches P_2. (P_2> P_1) to stop the blower blower A and B at the same time. by