Theoretical Analysis of Multi-Effect Multi-Stage Flash Processes

谢舜韶

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Theoretical Analysis of Multi-Effect Multi-Stage Flash Processes

更新时间：2025-12-16

- Theoretical Analysis of Multi-Effect Multi-Stage Flash Processes
- CIESC Journal Issue 1, (1980)
- 作者机构：
  
  南京化工学院化工系
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 March 1980，
  
  Published：25 March 1980
- 稿件说明：
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谢舜韶. Theoretical Analysis of Multi-Effect Multi-Stage Flash Processes[J]. CIESC Journal, 1980, (1).
DOI：

谢舜韶. Theoretical Analysis of Multi-Effect Multi-Stage Flash Processes[J]. CIESC Journal, 1980, (1). DOI：

摘要

针对多程多级闪蒸过程中的新问题

本文从理论上提出了一套分析方法和算式。本文由分析多级闪蒸开始

推敲级组中闪蒸工况（流量、浓度、压强等）的变化

然后探讨分程循环方案

确定特征参量和程端工况;最后分析处理闪蒸-传热段中多股、多级和闪蒸-传热结合等特点

确定段内的温度变化

为设计和运控两类问提供了多种解法。全部分析结果曾用一淡化装置的数据核对

符合甚好。可以充实蒸发过程内容

并供其他闪蒸工艺试用。

Abstract

Multi-effect multi-stage flash process is one of the evaporation processes in chemical engineering

yet it is somewhat different from conventional multi-effect evaporation. To meet the new problems encountered methods of analysis and formulas for calculation are presented here from the theoretical aspect. First

the multi-stage flash is analyzed in order to get the stagewise changes in flash variables such as flow rate

concentration

pressure etc. Schemes of circulation of concentrated solution in each effect are then analyzed for the determination of circulation parameters and terminal variables in each effect. The peculiarities such as double-streams

multi-stages and combination of flash and condensation in a section are then analyzed

stagewise changes in source and sink temperatures are determined

and various solutions both for design and operation problems are presented. The results thus obtained have been checked with the published data of a desalination unit and they agree well. It is suggested that these methods of analysis are applicable to all flash vapourization technologies.

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