Device and method for collecting storage tank discharged gas

Abstract

The invention discloses a device and a method for collecting storage tank discharged gas. The device comprises more than one storage tanks A for storing a medium A, and more than one storage tanks B for storing a medium B; breather valves, emergent release valves, pressure transducers and cutting valves are respectively arranged at the tops of the storage tanks; the cutting valves of the storage tanks A are communicated with storage tank A gas phase pipes through storage tank A pipe fire stoppers; the other ends of the storage tank A gas phase pipes are respectively connected with one end of a storage tank A gas phase gathering pipe; the cutting valves of the storage tanks B are communicated with storage tank B gas phase pipes through storage tank B pipe fire stoppers; the other ends of all the storage tank B gas phase pipes are respectively connected with one end of a storage tank B gas phase gathering pipe; the other end of the storage tank A gas phase gathering pipe and the other end of the storage tank B gas phase gathering pipe are respectively connected with one end of a storage tank gas phase gathering pipe main pipe; and the other end of the storage tank gas phase gathering pipe main pipe is connected with a dirty oil collecting system. The device can reduce the loss caused by direct discharge of oil into the atmosphere, and reduces the probability of generating potential safety hazards by feeding a lot of air into the tanks.

Description

technical field [0001] The invention belongs to the field of safe and environment-friendly production of petrochemical oil product storage and transportation, and relates to a device and method for collecting a plurality of storage tanks storing the same medium and storage tanks storing different media for unorganized discharge of oil and gas. Background technique [0002] Some of the gas pollutants in petrochemical enterprises come from the unorganized exhaust gas of oil storage tank farms. These pollutants are discharged into the atmosphere. Pollution can also pose a hazard to human health. In recent years, with the gradual improvement of people's awareness of environmental protection and the increasing emphasis on environmental pollution by the state and enterprises, reducing the discharge of fugitive gas pollutants in the storage tank area is an important means to protect the environment and improve the economic benefits of enterprises. It has been an important part of ...

AI Technical Summary

Problems solved by technology

This patented technology uses a water-sealed tank to control the pressure of the storage tank, and recycles the oil and gas in the oil storage tank, but it will bring a lot of inconvenience to daily operation and maintenance, and the small water-sealed tank cannot guarantee fire. In the event of an accident, the mutual influence between the oil and gas recovery device and the storage tank cannot achieve intrinsic safety

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