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通过对锅炉汽包的就地连通式水位计 (可视水位计、电接点水位计 )和差压补偿式水位计测量显示误差原理的分析 ,阐述了几个水位计误差产生的方式和修正原则。为了得到一个可信的水位显示数据和可靠的水位保护 ,必须采取如下措施 :改进测量装置 ;精确测量各水位计的安装位置 ,消除安装偏差 ;保持水位计显示的一致性 ;改进汽包水位保护 ;多台水位计显示核对等。采取上述措施后 ,可避免锅炉汽包干锅事故的发生
Based on the analysis of the principle of error indication of the measurement of boiler water drum (water level gauge, electric contact water level gauge) and differential pressure compensation type water level meter, the way and principle of error correction of several water level meters are expounded . In order to obtain a reliable water level display data and reliable water level protection, the following measures must be taken: improving the measuring device; accurately measuring the installation position of each water level gauge to eliminate the installation deviation; maintaining the consistency displayed by the water level gauge; ; Multiple water level indicator check and so on. After taking the above measures, to avoid boiler drum accident occurred