定形机余热回收板翅式换热器的设计与性能优化

曹先仲, 娄辉清, 陈骁军, 沈一峰

Design and performance optimization of plate-fin heat exchangers for waste heat recovery of stenters

CAO Xianzhong, LOU Huiqing, CHEN Xiaojun, SHEN Yifeng

表1 不同材质在不同温度下的热导率与耐腐蚀性能

Tab.1 Thermal conductivities and corrosion resistances of different materials at various temperatures

材料 热导率/(W·(m·K)-1) 耐腐蚀性能 20 ℃ 100 ℃ 200 ℃ 300 ℃ 腐蚀电流密度/ (μA·cm-2) 腐蚀速率/ (mm·a-1) 碳钢 50.2 49.2 47.9 46.5 12.45 0.144 0 304不锈钢 15.4 16.3 17.5 18.7 0.85 0.009 8 316不锈钢 14.2 16.3 20.4 22.6 0.72 0.008 3 316L不锈钢 12.1 16.1 17.3 18.6 0.68 0.007 8 钛合金(TA1) 17.0 17.5 18.1 18.8 0.05 0.000 6