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为研究圆形楞涡流发生器结构对换热面污垢和综合换热的影响,分别选取CaSO4过饱和溶液和去离子水作为流动工质,采用数值模拟方法对布置有圆形楞涡流发生器矩形通道内壁面CaSO4析晶污垢的沉积特性和综合换热特性进行了研究.分析了在两种不同工质下,圆形楞涡流发生器的楞长、间距和半径分别对矩形通道的污垢热阻Rf值和综合特性R值的影响.研究结果表明,当流动工质为CaSO4过饱和溶液时,圆形楞涡流发生器的污垢热阻Rf值随着楞长的增加先减小后增大,且在4/8H楞长处出现最小值;而当流动工质为去离子水时,圆形楞涡流发生器的综合特性R值随着楞长的增加先增大后减小,且在4/8H楞长处出现最大值;无论流动工质是CaSO4过饱和溶液还是去离子水时,污垢热阻Rf值和综合特性R值均随着间距的增大而增大,随着半径的增大而减小.最终,通过综合对比可以认为,当楞长为4/8H、间距在35～50mm、半径在4～5mm时,圆形楞涡流发生器都能保持一个较好的抑垢和综合换热效果.“,”In order to study the influence of structure in heat exchange surface fouling and comprehensive heat transfer for circular stare blankly vortex generator,CaSO4 supersaturated solution and deionized water was selected separately as working medium flow,numerical simulation method was used to study the internal wall which was decorated with circular stare blankly vortex generator of rectangular channels in the CaSO4 crystallization fouling of the sedimentary features and the comprehensive heat transfer characteristics.Two different working medium was analyzed,the influence of circular going a while,interval and radius in rectangular channel fouling resistance Rf value and comprehensive properties of the R value for vortex generator.The results showed that,when the flow of working medium is CaSO4 supersaturated solution,the fouling resistance decreased and then increased with the length of the vortex generator increased and appear minimum at 4/8H shocked strengths.When the flow of working medium is deionized water,the comprehensive characteristics increased and then decreased with the length of the vortex generator increased and appear maximum at 4/8H shocked strengths.Whether working medium flow CaSO4 supersaturated solution or deionized water,Fouling resistance Rf value and comprehensive characteristics of R value increases with the increase of distance,and decreases with the increase of the radius.At last,through the comprehensive comparison can be found,when long stare blankly is 4/8H,spacing in 35-50mm and radius in 4-5mm,circular stare blankly vortex generator can keep a good scale inhibition and the comprehensive heat transfer effect.