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一、前言长期以来,保护加热炉气碳势控制都使用氯化锂露点仪和红外线二氧化碳分析仪。这种仪器本身结构复杂,工作时需有取气泵、冷却器、过滤器等附属装置,所以操作麻烦,反应速度慢,所测结果也只是冷却到室温后的炉气中的H_2O、或CO_2数值,并不反映高温下炉气真实情况。近年来,炉气碳势控制应用氧探头,其结构简单,使用方便,并且能灵敏、准确、快速地反映高温下炉气真实情况,为通过高温下炉气各成分间的化学反应及其平衡,更好地控制炉气碳势,发展控制理论研究提供了方便。
I. Foreword For a long time, the control of the carbon potential of heating furnace gas uses the dew point meter of lithium chloride and the infrared carbon dioxide analyzer. The structure of the instrument itself is complicated. When working, it needs attachments such as air pump, cooler, filter and so on. Therefore, the operation is troublesome and the reaction speed is slow. The measured result is only the value of H 2 O or CO 2 in the furnace gas cooled to room temperature , Does not reflect the real situation of furnace gas at high temperature. In recent years, the furnace carbon potential control oxygen probe, its simple structure, easy to use, and can sensitively, accurately and quickly reflect the real situation of high temperature gas furnace, through the high temperature furnace gas chemical reaction between the components and the balance , To better control the carbon potential of the furnace gas and to develop a control theory to provide convenience.