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详细介绍了用U形管检测板翅式换热器内漏的具体操作方法,分析了漏率的计算和修正方法,最后阐述了板翅式换热器内部温度变化值及大气压力值的测量等相关问题。
The method of detecting the internal leakage of plate-fin heat exchanger by U-shaped pipe is introduced in detail. The calculation and correction of leakage rate are analyzed. Finally, the variation of internal temperature and the value of atmospheric pressure in plate-fin heat exchanger And other related issues.