Abstract:In this paper,the structural design and optimization results of some new heat exchangers in the industry are reviewed,and the structure of the new heat exchangers and the enhancement mechanism of the heat transfer effect are mainly introduced.The conclusions are as follows:Although the use of foam metal and heat pipe will inhibit natural convection,it will greatly improve the thermal conductivity,and the heat transfer enhancement effect is remarkable.Due to the larger heat exchange area,the quadruple tube has more heat transfer advantages than the triple tube.The helical tube pitch changes with the temperature gradient to have better temperature uniformity.The bent plate heat exchanger has excellent performance and small footprint,and the shell and tube heat exchanger have good heat exchange effect,simple structure and wider industrial application prospects.