A PLANT FOR STORING AND SUPPLYING COMPRESSED GAS

摘要

A plant for storing and supplying compressed gas comprises a storage tank (1) for gas, at least one pressurization tank (2) for gas and a buffer tank (3) for a pressure support fluid to be filled into or evacuated from lower portions of the storage and pressurization tanks. The lower portions of the storage and pressurization tanks are communicating with the buffer tank via fluid flow lines (4, 5) to fill fluid during supplying from and pressurizing gas in the plant, and a flow line (7) for evacuating fluid during refilling of the pressurization tank. According to a preferred embodiment the lower portions of the storage and pressurization tanks are communicating with one another via a fluid flow line (6) to exchange fluid between the storage and pressurization tank, whereas gas being pressurized in the pressurization tank is moved into the storage tank via a gas flow line (8) communicating the pressurization and storage tanks with one another, the gas flow line being situated between upper portions of the pressurization and storage tanks.