Moist air strengthened finned condenser pipe and preparing method

The invention provides a moist air finned condenser pipe. The moist air finned condenser pipe comprises a pipe body and fins on the heat exchange surface of the pipe body, the fins spirally extend inthe length direction of the tube body, and grooves are formed by gaps between adjacent fins. The moist air finned condenser pipe is characterized in that the surfaces of the fins are rough surfaces formed by sand blasting, so that the hydrophilicity is improved; and the bottoms of the grooves are smooth hydrophobic surfaces, so that the fluidity of condensed liquid is improved. Therefore, a stablecondensation heat exchange pipe with the hydrophilic/hydrophobic surface combined is obtained. Under the combined action of the two mechanisms, the condensation heat exchange performance of water vapor in moist air can be greatly improved. The preparation method mainly comprises the following four steps including hydrophobic treatment, hydrophobic surface protection, surface sand blasting and cleaning treatment, the prepa