Abstract:

Plate falling film regenerator with a film-inverting configuration is a new type of regenerator that combines the plate falling film absorption technique with the film-inverting technique.Understanding its performance is very important for industry applications.This paper used a new type regenerator and a plate falling film regenerator for comparison.The design conditions of these two regenerators were the same.By solving the mathematical model，the heat and mass transfer characteristics were calculated and compared between the two regenerators at different flow rates of solution，inlet concentrations，inlet temperatures，generation pressures，and heating conditions.The comparison revealed that these two regenerators had different changes of performance under varying operation conditions.In the case replacing the plate falling film regenerator with the new plate falling film regenerator with film-inverting configuration，the differences in the performance of the regenerators under varying conditions must be taken into consideration.

Key words:

传热传质, 再生器, 性能, 降膜, 膜反转

摘要： 膜反转板式降膜再生器是一种结合板式降膜与膜反转技术的新再生器型式。掌握其性能对今后的工业应用十分重要。本文以一个膜反转板式降膜再生器与板式降膜再生器作为比较。在相同设计条件下设计获得两个不同型式的再生器，通过对数学模型的求解，进行了不同发生压力、溶液流量、进口浓度、进口温度及加热条件下两者传热传质性能的计算与比较。结果表明在不同工况条件下，两者性能变化有所不同。由此，在膜反转板式降膜再生器替代板式降膜再生器的应用中应当考虑它们变工况性能的差异。

关键词:

传热传质, 再生器, 性能, 降膜, 膜反转