管道类型对超声波防垢影响的数值研究
发布时间：2019-06-14 13:21
【摘要】：超声波应用在换热设备中已表现出显著的防垢性能,而超声空化作用又是防垢主要因素。采用数值方法对管内超声空化流场进行模拟,研究在超声波作用下圆管、横纹管、波纹管内析晶污垢的沉积过程,并引入实验除垢率对析晶污垢剥蚀率进行修正,进而对不同管内析晶污垢沉积特性进行对比探究。结果表明:超声波对横纹管的防垢效果最佳、对波纹管的防垢效果最差。因此,本研究将为工程中采用超声波防垢时对于管道类型的选择提供一定的参考依据。
[Abstract]:Ultrasonic application in heat exchanger has shown remarkable scale prevention performance, and ultrasonic cavitation is the main factor of scale prevention. The ultrasonic cavitation flow field in the tube is simulated by numerical method, and the deposition process of crystallization dirt in circular tube, transverse tube and bellows is studied under the action of ultrasonic wave. The denudation rate of crystallization dirt is modified by introducing experimental scale removal rate, and then the deposition characteristics of crystallization dirt in different tubes are compared and studied. The results show that ultrasonic wave has the best anti-scaling effect on transverse tube and the worst effect on bellows. Therefore, this study will provide a certain reference for the selection of pipeline types when ultrasonic scale prevention is used in the project.
【作者单位】： 东北电力大学能源与动力工程学院;
【分类号】：TB559;TK172
本文编号：2499416
[Abstract]:Ultrasonic application in heat exchanger has shown remarkable scale prevention performance, and ultrasonic cavitation is the main factor of scale prevention. The ultrasonic cavitation flow field in the tube is simulated by numerical method, and the deposition process of crystallization dirt in circular tube, transverse tube and bellows is studied under the action of ultrasonic wave. The denudation rate of crystallization dirt is modified by introducing experimental scale removal rate, and then the deposition characteristics of crystallization dirt in different tubes are compared and studied. The results show that ultrasonic wave has the best anti-scaling effect on transverse tube and the worst effect on bellows. Therefore, this study will provide a certain reference for the selection of pipeline types when ultrasonic scale prevention is used in the project.
【作者单位】： 东北电力大学能源与动力工程学院;
【分类号】：TB559;TK172
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