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铝传热性好,又适用于纯水等介质,因此在一定的热力参数范围内用铝作热交换器比用铬镍不锈钢有较大的优越性。在反应堆释热元件包壳为铝时,热交换器用铝制作尤为适宜。本文所述反应堆铝热交换器虽曾发生过列管振动磨损引起泄漏以及传热系数严重降低等问题,但对比了国内外铝热交换器的发展趋势与使用情况,通过解决这些问题,我们认为:在低热力参数的反应堆冷却系统中使用铝热交换器没有不可克服的技术困难。使用铝热交换器是合理的。
Aluminum heat transfer is good, but also for pure water and other media, so within a certain range of thermal parameters with aluminum as a heat exchanger than with chrome-nickel stainless steel have greater advantages. Heat exchangers made of aluminum are particularly suitable when the reactor heat-generating element is cladded with aluminum. The reactor aluminum heat exchanger described in this article has experienced some problems, such as leakage caused by vibration and vibration of the tube and severe decrease of heat transfer coefficient. However, compared with the development trend and application of aluminum heat exchangers at home and abroad, we think : There are no insurmountable technical difficulties in using aluminum heat exchangers in reactor cooling systems with low thermal parameters. It is reasonable to use aluminum heat exchangers.