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凝汽器传热组件中的换热管是凝汽器最重要的部件之一,换热管性能的优劣会直接影响机组的运行。合理选择高性价比的换热管材料,始终是凝汽器设计中的关键点。换热管选材主要考虑其应具备优良的传热性能,同时还应有良好的耐腐蚀性能,具有适宜的强度和刚度,并需考虑经济性和易采购及易加工等性能。近年来,各种管材在凝汽器上的应用有了新的进展,特别是铁素体不锈钢管和奥氏体—铁素体双相不锈钢管的应用,将会成为凝汽器换热管材料应用的发展趋势。
Condenser heat transfer components in the heat transfer tube condenser is one of the most important components, the merits of heat transfer tube performance will directly affect the operation of the unit. Reasonable choice of cost-effective heat pipe material, the condenser has always been the key design point. Heat exchange tube material selection should mainly consider its excellent heat transfer properties, but also should have good corrosion resistance, with appropriate strength and stiffness, and the need to consider the economic and easy procurement and processing performance. In recent years, the use of various pipes in the condenser has made new progress, especially the application of ferritic stainless steel pipe and austenitic-ferritic duplex stainless steel pipe, will become the condenser heat exchanger tube Material application development trend.