| 摘要 |
The invention is a pressure regulating system (1; 20; 30; 40; 50) suited to regulate the pressure of a gas, comprising: a regulating device (2) suited to regulate the pressure of a first gas stream, provided with an inlet (2a) for the gas at a supply pressure and with an outlet (2b) for the gas at a regulated pressure that is lower than the supply pressure; a vortex tube (3) suited to receive a gas stream through an inlet (3a), separate it into a hot portion and a cold portion and deliver the hot and cold portions through corresponding outlets (3b, 3c); a heat exchanger (4) coupled with the vortex tube (3) in order to heat the first gas stream before it flows into the regulating device (2); a recovery duct (5) suited to collect a first portion of the first gas stream at a collection point (5a) located downstream of the heat exchanger (4) and to convey it to the inlet (3a) of the vortex tube (3). |
