Process and device for treating tail gas of high-condensation-point volatile liquid storage tank

The invention relates to the technical field of environmental protection, and discloses a process and device for treating tail gas of a high-condensation-point volatile liquid storage tank, and the process and device for treating the tail gas of the high-condensation-point volatile liquid storage tank comprise the following steps: S1, valves of medium storage tanks D-1001 and D-1002 are opened, and the pressures of the two tanks are in a balanced state; s2, pressure regulating valves 1-3 are controlled; s3, a valve, connected with a safety pipeline VG1002, at the bottom of the tail gas cleaning tower T-1001 is kept in an open state all the time; s4, enabling the nitrogen in the nitrogen storage tank to pass through a self-operated regulating valve PV10101 so as to always keep the storage tanks D-1001 and D-1002 and the safety pipeline VG1002 in a nitrogen sealing state; s5, the tail gas cleaned by the tail gas cleaning tower T-1001 is subjected to gas-liquid separation by S-1001 and then is sent out of the de