By using the statistics analysis method, the reasons for the excessive blowdown of quench water in Daqing Ethylene Plant are found and, some measures are proposed and used to solve the problem.

• 笔者运用统计学的方法分析了中国石油大庆石化分公司化工一厂乙烯装置急冷水排放量大的原因,并针对这些原因所采取的措施。