Heat exchanging tube, heat exchanging system and controlling method for heat exchanging tube

The invention provides a heat exchanging tube , a heat exchanging system and a controlling method for the heat exchanging tube. The heat exchanging tube comprises a heat exchanging tube body and a turbulence protrusion, wherein the turbulence protrusion is arranged in the heat exchanging tube body and protruding toward the inside of the heat exchanging tube body; by arranging the turbulence protrusion in the heat exchanging tube body, turbulence level of fluid flowing through the heat exchanging tube can be increased, the longitudinal shear force can be increased, the dirt cleaning effect can be improved, and self-cleaning of the heat exchanging tube can be realized. 本发明提供种换热管、换热系统及其控制方法。该换热管包括换热管体和设置在换热管体内并向换热管体内凸出的湍流凸起。通过在换热管体内设置湍流凸起可以增加流经换热管内流体湍流度，增加纵向剪切力，提高污垢清洁效果，实现换热管的自清洁。