摘要
半圆柱面涡流发生器具有较好的强化传热效果,在换热器设备上具有较大的应用前景。为了获得半圆柱面涡流发生器的抑垢特性,采用离线称重法,研究了在流速为0.2m/s、体积质量为3 500mg/L、温度为50℃下不同排列间距、不同高度下的半圆柱面涡流发生器对CaSO4污垢结垢量的变化。结果表明:半圆柱面涡流发生器具有抑垢性,总结垢量要少于光片;相同高度下间距20mm的试片结垢量最少;相同间距下高为5mm的试片结垢量最小。
Semi-circular vortex generators has good heat transfer enhancement effect, and thus great application prospect in heat exchanger equipments. In order to get the characteristic restraining fouling of semi-circular vortex generators, the effect of different height of the c m/s, a concentration of yli 3 nder on the GAS04 dirt fouling was inves 500 mg/L, and a temperature of 50 ℃. has of different arrangement spacing and tigated with a flow volecity of 0.2 Result shows that： semi-circular vortex generators have the characteristic of restraining fouling ,and those fouling quantity that on the test pieces with noney; the same height below spacing 20 mm specimen scaling least; under the same distance high for 5 mm specimen scaling quantity minimum. is less than quantity at
出处
《热科学与技术》
CAS
CSCD
北大核心
2013年第1期52-56,共5页
Journal of Thermal Science and Technology
基金
国家自然科学基金资助项目(51076025)
