Cogenerative ORC system

ORC system (Organic Rankine Cycle) at least partially co-generative for the production of electric energy and the heating of a user fluid, the system comprising:

• at least one main thermal source (S1) of heating of a fluid vector,
• a primary circuit covered by the fluid vector, that comes from said thermal source, put into circulation by at least a recycling pump,
• a thermal exchange group for the exchange of heat between the vector fluid and a work fluid circulating in a relative work fluid circuit by means of a pump,
• an electric expander-generator group supplied in the entrance by the work fluid exiting from said thermal exchange group, and
• at least one condenser group connected to the exit of the electric expander-generator group,
• at least two regenerative exchangers positioned in series on the path of the work fluid between the exit of the electric expander-generator group and the condenser inlet of the ORC system, and by a heat exchanger-user connected by means of an offtake line to at least one of said regenerative exchangers to receive from it a part of the rate of flow of the work fluid and crossed by the user fluid to be heated by means of a thermal exchange with said rate of work fluid, and where the part of the rate of flow of the derived work fluid is returned to the same regenerative exchanger after having crossed the exchanger user.