Intelligent oil gas recovery system and oil gas recovery method for oil depots

Abstract

The invention relates to an intelligent oil gas recovery system and an oil gas recovery method for oil depots. The intelligent oil gas recovery system comprises a compressor, a first precooler, a second precooler, a gas-liquid separator, a membrane separation assembly, a first refrigerating system, a second refrigerating system, a liquid storage box and a control system. Oil gas sequentially flows through a one-way valve, a pressure transmitter P1 and a fire barrier through an oil gas recovery pipeline, then gets compressed by the compressor, enters the second precooler so as to be condensed and finally is separated by the gas-liquid separator, the air and the oil gas in the gas part are separated through the membrane separation assembly, the oil gas enters the compressor to be recycled, and the liquid part returns to a floating roof tank through the liquid storage box. The intelligent oil gas recovery system has the advantages that the condensation technology and the membrane separation technology are combined so as to improve the recovery efficiency of the oil gas; the network intelligence detection technology and the network intelligence control technology are adopted for achieving network data detection, the wired technology and the GPRS wireless technology, and therefore lines of a measurement and control system are simplified, message passing is reliable, response is rapid, monitoring is timely, and the safety is high.

Description

technical field [0001] The invention relates to an oil and gas recovery system, in particular to an oil depot intelligent oil and gas recovery system and an oil and gas recovery method. Background technique [0002] Oil and gas refers to the volatile organic compound gas (non-methane total hydrocarbons) produced during the storage or loading and unloading of gasoline in the oil depot. It is a mixture containing various organic hydrocarbon compounds and air. The main components are butane, pentane, benzene, xylene, Ethylbenzene, etc., are mostly carcinogens. Most of the oil terminals, refineries, oil depots and gas stations are distributed in and around the city. During the process of unloading and refueling, a large amount of oil and gas will be discharged, and the average oil and gas integral is 20% to 40%. If it is directly discharged into the atmosphere, it will endanger the safety of production and pollute the environment, and at the same time reduce the quality of oil ...

AI Technical Summary

Problems solved by technology

However, the control system is not ideal, and the lack of network intelligent detection and network intelligent control affects the recovery efficiency and quality of oil and gas, especially the safety measures in the recovery process are not perfect

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