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本装置是由卡门流量计及流量差报警器两部分组成的。在高炉风口冷却水的进出口分别装一台卡门流量计,这两台流量计分别发出频率与流速成正比的脉冲信号,而流量差报警器则对这两列脉冲的频率进行比较,当风口漏水时,根据两列信号的差值,发出报警信号。 一、问题的提出 伸进高炉炉壁内的风口,虽有冷却水进行冷却,但也经常烧漏,有时大量的冷却水流入炉内,这不但影响冶炼正常进行,而且由于有时不能及时发现破损风口而发生爆
This device is composed of two parts of Carmen flowmeter and flow difference alarm. In the blast furnace tuyere cooling water import and export respectively equipped with a Carmen flowmeter, the two flow meter were issued a frequency and flow rate proportional to the pulse signal, while the flow difference alarm pulse frequency of these two columns are compared, when the tuyere Leakage, according to the difference between the two signals, an alarm signal. First, the problem raised into the blast furnace wall tuyere, although the cooling water for cooling, but also often burn, and sometimes a lot of cooling water flow into the furnace, which not only affect the normal smelting, and sometimes can not be found in time damaged Blast and burst