What is the phenomenon of vapor-liquid azeotropy in the drum, its causes, and treatment methods?

Thread Content

Phenomenon: The water level indicated by the drum level gauge fluctuates violently, making it impossible to see the actual water level； The superheated steam drops sharply; in severe cases, water hammer occurs ； Deterioration of steam and boiler water quality ； The water level alarm emits high or low alarm signals intermittently ； Reason: 1. The salt content in the boiler water is severely above the limit, and waste discharge is not carried out in a timely manner ； 2. The steam load increases sharply to its extreme limit in the boiler water ； 3. The feed water contains oil or too much chemical dosage. Treatment: 1. Reduce the boiler load to decrease gas production ； 2. Increase regular and continuous wastewater discharge, while also enhancing water supply to prevent water shortages due to low water levels ； 3. Strengthen dew analysis, discharge wastewater based on the analysis results, and improve the quality of boiler water ； 4. The water level should be kept at around 50%.