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模拟电厂凝汽器工况,采用自行研制的磨蚀试验机对板材304、316L、444、44660、日本钛板和管材Sea-Cure、444、44660、白铜管B30、中国钛管进行了冲刷磨蚀性能试验,通过一次回归正交试验法分析了冲刷磨蚀的影响因素。结果表明:板材的耐磨蚀性依次为44660>444>日本钛>304>316L,管材依次为Sea-Cure>44660>444>中国钛>B30;其中挡板面积、转速以及砂水比对材料冲刷磨蚀有显著性影响。建议沿海含砂量较大区域的电厂凝汽器冷却管可优先选用不锈钢Sea-Cure或44660,而内陆电厂凝汽器可选用444作为冷却管材。
Simulated power plant condenser conditions, the use of self-developed abrasion testing machine on the plate 304,316 L, 444,44660, Japan, titanium and pipe Sea-Cure, 444,44660, white brass tube B30, China titanium tube erosion erosion Performance test, through a regression orthogonal test method to analyze the impact of erosion erosion factors. The results show that the corrosion resistance of the plates is 44660> 444> Ni> 304> 316L, and the order of the pipes is Sea-Cure> 44660> 444> Ti> B30. Scour erosion has a significant effect. It is recommended that power plant condenser cooling pipes with a high sand content in the coastal area should be preferentially made of stainless steel Sea-Cure or 44660, whereas inland power plant condensers may use 444 as cooling pipe.