为了更好地解决饱和温度下蒸汽凝结水的热量回收利用问题 ,设计了一种渐缩流通面积换热器。该换热器通过缩小凝结水冷却段的管程流通面积 ,使其在管内的流速显著提高 ,从而提高凝结水冷却段的总传热系数。可更经济合理地用单台换热实现管程水蒸汽的冷凝及其凝结水的冷却、壳程介质被加热的换热过程。本文介绍其结构工作原理及特性 In order to solve the problem of heat recovery and recycling of steam condensate water at saturation temperature, a tapered flow-through area heat exchanger was designed. By reducing the flow area of ​​the pipe section of the condensing water cooling section, the heat exchanger greatly increases the flow rate in the pipe, thereby increasing the total heat transfer coefficient of the condensing water cooling section. More economical and reasonable to achieve a single tube heat exchanger condensate and condensation of its cooling water, shell-side medium is heated heat exchange process. This article describes the structure of the working principle and characteristics