CAJ | 학술논문

为了探究三角翼涡流发生器的纳米氧化镁颗粒污垢特性，选用粒径为50 nm的氧化镁颗粒配制的胶体溶液为研究对象，研究了在不同水浴温度、颗粒浓度、流速、三角翼间距以及不同布置等工况下三角翼涡流发生器的污垢特性。结果表明：三角翼涡流发生器具有抑垢特性，水浴温度、浓度、流速对其抑垢能力及结垢速率均有影响，水浴温度升高、颗粒浓度降低以及工质流速升高都会导致三角翼的抑垢能力增强。三角翼不同列间距的抑垢能力随着布置方式的改变而改变，采用均匀分布布置形式时40 mm列间距的抑垢能力最强，而采用同列数布置时80 mm列间距的抑垢能力最强。
위료탐구삼각익와류발생기적납미양화미과립오구특성，선용립경위50 nm적양화미과립배제적효체용액위연구대상，연구료재불동수욕온도、과립농도、류속、삼각익간거이급불동포치등공황하삼각익와류발생기적오구특성。결과표명：삼각익와류발생기구유억구특성，수욕온도、농도、류속대기억구능력급결구속솔균유영향，수욕온도승고、과립농도강저이급공질류속승고도회도치삼각익적억구능력증강。삼각익불동렬간거적억구능력수착포치방식적개변이개변，채용균균분포포치형식시40 mm렬간거적억구능력최강，이채용동렬수포치시80 mm렬간거적억구능력최강。
In order to explore the characteristics of nanometer magnesia particle fouling in delta wing vortex generator, colloidal solutions made of magnesia particles of 50 nm were used in the experiments. The fouling characteristics of the delta wing vortex generator under different conditions were investigated, including water bath temperature, particle concentration, flow velocity, spacing and arrangement of delta wings. The results show that the delta wing vortex generator can inhibit the fouling. The longitudinal vortex and stagnation zone produced by delta wing vortex generator and the characteristics of magnesia colloidal solution have a great influence on the fouling characteristics. Higher water bath temperature, lower magnesia solution concentration, and higher flow velocity can reduce the fouling rate. The fouling characteristics also depend on the arrangement of delta wings, which results in different longitudinal vortexes. With the uniform layout of delta wings, 40 mm spacing is the best for inhibition of dirt. With the same number of columns, 80 mm spacing is the best.