摘要:

阐述了煤制甲醇工程中甲醇合成装置副产的次中压蒸汽的阶梯利用，通过技改解决工厂现有热力系统能源浪费的问题，既产生了较大的经济效益，同时也符合国家节能减排的产业政策。

关键词: ​次中压蒸汽 / 阶梯利用 / 减温减压 / 循环水泵 / 汽轮机驱动

Abstract:

In this paper,the step-wise utilization of secondary medium pressure steam by-produced by the methanol synthesis unit of the coal-to-methanol project is described. The problem of energy waste in the existing thermal power system of the factory is solved through technical transformation, which not only brings about considerable ecnomic benefits,but also conforms to the national industrial policy of energy conservation and emission reduction.

Keywords: ​secondary medium pressure steam / step-wise utilization / temperature reduction and decompression / circulating water pump / steam turbine driven