Natural coolant refrigerating plant

摘要

A natural coolant refrigerating plant comprising a motor-driven compressor with two compression stages, at least one jacket for heating and/or cooling a product being processed, an intercooler located upstream of the second compression stage and a gas-cooler located downstream of the outlet from the second compression stage. Moreover, the plant comprises a first branch, connecting the outlet of the gas-cooler with the inlet of the first stage of the motor-driven compressor for recovering a predetermined quantity of coolant.