A HEAT EXCHANGER FOR USE IN A GEO-THERMAL PLANT, AND THE RELATIVE PLANT, FOR THE EXPLOITATION OF RENEWABLE ENERGY SOURCES

摘要

A heat exchanger for use in a geo-thermal plant for the exploitation of renewable energy sources includes a pack of metal plates arranged side by side, each plate being provided with channeling for the circulation of a fluid, with the entry and the exit of said channeling arranged at the opposite ends of the plate. The entries and exits of said plates, on the same ends of the pack, are arranged at intervals amongst each other, with the entry in a plate adjacent to the exit of the sided plate. All entries and all exits, on the same end of the pack are connected together in such a way as to converge respectively in a single entry channel and in a single exit channel. An entry channel and the corresponding exit channel on the opposite end of the pack are connected with a device adapted for receiving cold fluid to be heated, while the other entry channel, and the corresponding exit channel on the opposite end of the pack, are connected with a device adapted for receiving hot fluid to be cooled. The above heat exchanger is placed in a geo-thermal plant for the exploitation of renewable energy and operates located three meters deep in the ground.