Abstract: The invention consists of a central tube (1) manufactured of high thermal conductivity materials in which a liquid or gas is made to pass at low temperature thus refrigerating other tubes (2) around its periphery also made of high conductivity materials which are in contact with the central tube. The system may be joined and insulated by an external tube (4) of insulating material and which forms a cold chamber (3) among the internal tube (1) and the peripherals (2) which assists the heat exchange. The number and the diameter of the peripheral tubes (2) for heat exchange is a function of the desired capacity and of the number of liquids and/or gases that it is desired to refrigerate at the same time. In order to further increase the efficiency of the system, the peripheral tubes (2) may be wound around the central tube (1), thereby increasing the total difference of the length between the tubes and the performance of the system.