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低温核供热堆与高温竖直蒸发管多效蒸发(VTE-MED)耦合的方案,是国际原子能机构推荐的核能海水淡化优选方案之一。在清华大学核能技术设计研究院建立了双塔VTE-MED实验系统,其最高设计咸水温度为120℃,原料海水循环流量为3300kg/h,3效的产水量约180kg/h。该文介绍了海水蒸发器、预热器、终端冷凝器、海水箱等系统主要设备及海水淡化蒸发工艺流程。针对实验系统的运行稳定性实验研究,表明这一实验系统已能建立起稳定的工作状态,可利用该系统在真实流动参数下,进行诸如多孔孔板节流特性关键技术的热态实验研究及蒸发工艺流程等实验研究。
The scheme of multi-effect evaporation (VTE-MED) coupling between low-temperature nuclear reactor and high-temperature vertical evaporation tube is one of the recommended programs of nuclear energy desalination recommended by the International Atomic Energy Agency. The double-tower VTE-MED experimental system was set up at Tsinghua University Institute of Nuclear Energy Technology Design. The highest designed salt water temperature is 120 ℃, raw seawater circulation flow is 3300kg / h, and the 3-effect water production is about 180kg / h. This paper introduces the main equipment of seawater evaporator, preheater, terminal condenser, seawater tank and desalination evaporation process. Experimental study on the running stability of the experimental system shows that the experimental system has been able to establish a stable working condition. Under the real flow parameters, this system can be used to carry out the thermal experimental research on key technologies such as multi-orifice orifice throttling Evaporation process and other experimental research.