准格尔发电厂汽包水位测量装置异常的原因及改进

CAUSES LEADING TO ABNORMALITY IN MEASUREMENT USING DRUM-LEVEL GAUGE IN ZHUNGE’R POWER PLANT

对准格尔发电厂 1号、2号锅炉水位测量装置 (单室平衡容器 )准确性和可靠性差的原因进行了分析 ,并进行了将汽侧连通管与水侧连通管完全隔离的改进。经实际水位升降试验检验 ,改进后的平衡容器能实现汽包水位的正确测量 ,汽包水位指示值不再出现飞升现象。

The causes leading to poor accuracy and bad reliability of water-level measuring facility (single chamber equilibrium container) for boiler No 1 and No 2 in Zhunge’r Power Plant have been analysed, and retrofit of completely isolating the connecting pipe on the steam side and that on the water side being carried out. Through inspection of practical water-level rising and lowering test, the correct measurement of drum-level can be realized by using the equilibrium container after retrofitting, the jump phenomenon of drum-level indicating value never occurred again.