Vacuum phase variable radiator

The utility model relates to a vacuum phase transition radiator belonging to the technical field of heating equipment, which comprises a shell and a heat source pipe; the inner of the shell is a vacuum chamber which is provided with radiating working substance; the heat source pipe is positioned at the lower part of the shell; the two ends of the heat source pipe are connected with an inlet and an outlet of the heat source working substance in the shell respectively, wherein the heat source pipe is a corrugated pipe. Compared with the prior radiator, due to the heat source pipe is changed into corrugated pipe from straight pipe, during the process that the heat source working substance inside the corrugated pipe is flowing, a turbulence will be formed easily to cause small resistance in heat transfer, and the speed of heat transfer is fast. Therefore, compared with the traditional radiator, the utility model has the advantages of high heat transfer efficiency, water saving and energy saving.