贵州鸭溪电厂锅炉汽包差压式水位计改造

针对锅炉汽包差压水位的测量原理，分析在汽包水位测量中存在的问题，根据影响汽包水位测量不准的主要原因环境温度、汽包压力等，提出改变原单室平衡容器的正、负压侧取样筒的开口形状和将与正、负压侧连接的取样管水平延长的改造方案。

Improvement of drum differential pressure water level gauge in Guizhou yaxi power plant

According to the measuring principle of differential pressure water level gauge, this paper ana- lyses the problems of drum level measurement. And according to the main factors which affect the accura- cy of drum level measurement, such as ambient temperature and steam drum pressure etc, this paper pro- poses a reform scheme that changing the opening shape of sampling container in original signal cell equi- librium vessel and extending the sampling tube which connects the positive and negative pressure.