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作者将蒸汽喷射器与汽水混合加热器两者相结合，构成蒸气喷射两级加热器，用于工程，效果良好。本文介绍了蒸气喷射两级加热器的构造、工作原理、试验情况和试验结果分析，指出了它的应用范围和经济性
The author combines the steam ejector and the soda-hybrid heater to form a two-stage steam injection heater, which is used in engineering and has a good effect. This article describes the structure, working principle, test conditions and test results of steam injection two-stage heater, and points out its application scope and economy.