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监测燃料燃烧工况的气体分析仪器是大型工业锅炉必备的仪表。它对于经济燃烧、节约能源起着重要的作用。磁性氧量表可以直接测量烟气的剩余含氧量,准确度较高,迟延时间较其他分析仪表短,因而得到了最广泛的应用。一般的热工仪表、电工仪表可以用比较法进行校验。但气体分析仪器没有标准表可以比较,影响因素又多,目前普遍采用向仪器通入标准气进行调校的办法,调整及刻度校正比较复杂。由于方法掌握不当,许多单位的氧量表检修工期长,维护量大,甚至经常不能正常工作。有些使用单位完全照搬制造厂家的调校办
Gas analyzers that monitor fuel burning conditions are essential instruments for large industrial boilers. It plays an important role in economic combustion and energy conservation. Magnetic oxygen gauge can directly measure the remaining oxygen content of flue gas, high accuracy, the delay time shorter than other analyzers, which has been the most widely used. General thermal instrumentation, electrical instrumentation can be used to verify the comparison method. However, there is no standard gas analysis instrument can compare the table, many influencing factors, the current universal access to the instrument to adjust the standard gas approach, adjustment and calibration calibration more complicated. Due to improper methods, many units of oxygen scale overhaul period is long, large maintenance, and often can not work properly. Some use units completely copy the manufacturer’s school to do