Oil-gas recycling device used in petrol station

Abstract

The invention discloses an oil-gas recycling device used in a petrol station. The oil-gas recycling device is characterized by comprising a gas inlet buffer tank, wherein the gas inlet buffer tank is connected with a compressor through a first pipeline; the compressor is connected with a precooling heat exchanger through a second pipeline; an ethanol injector is further connected with the second pipeline through an injection tube; the precooling heat exchanger is connected with an evaporator through a third pipeline; the evaporator is connected with a gas-liquid separator through a fourth pipeline; a gas-phase outlet in the top of the gas-liquid separator is connected with an absorption tower through a fifth pipeline; the absorption tower is connected with the precooling heat exchanger through an eighth pipeline; a cold supply outlet of the precooling heat exchanger is connected with an adsorption column through a tenth pipeline; and the adsorption column is connected with an emptying tower through a corresponding pipeline. The oil-gas recycling device has the advantages that the working efficiency is high, a good oil-gas recycling effect is achieved, oil gases can be treated in multiple modes, and the atmosphere is not polluted by discharged tail gases.

Description

technical field [0001] The invention relates to the technical field of recovery of volatile gas in gas stations, in particular to an oil gas recovery device used in gas stations. Background technique [0002] When loading and unloading oil products in oil tanks at gas stations, the discharged oil gas contains volatile components of oil products. If it is not recovered, it will not only cause great environmental pollution, but also cause great economic losses. At present, the recovery of oil and gas in the market is usually directly emptied after simple treatment, and some gas stations use the method of combining multiple equipments. After being discharged, it still causes air pollution. To sum up, it is difficult to completely recover the volatile gas of oil products in the gas station, which not only wastes the refined oil in the station, but also causes serious pollution to the atmosphere. Contents of the invention [0003] The purpose of the present invention is to sol...

AI Technical Summary

Problems solved by technology

[0002] When loading and unloading oil products in oil tanks at gas stations, the discharged oil gas contains volatile components of oil products. If they are not recovered, it will not only cause great environmental pollution, but also cause great economic losses.

At present, the recovery of oil and gas in the market is usually directly emptied after simple treatment, and some gas stations use the method of combining multiple equipments. After being discharged, it still causes air pollution. To sum up, it is difficult to completely recover the volatile gas of oil products in the gas station, which not only wastes the refined oil in the station, but also causes serious pollution to the atmosphere.

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