Gas station oil gas treatment system and method

Abstract

The invention discloses a gas station oil gas treatment system and method. The treatment system comprises a control device, a plurality of gasoline storage tanks, a first treatment system, a second treatment system, a vacuum pump and a pressure vacuum valve. The pressure vacuum valve is connected with the gasoline storage tanks. The first treatment system comprises a first adsorption tank, a first electromagnetic valve and a second electromagnetic valve for achieving adsorption and exhaust of the first adsorption tank, and a third electromagnetic valve for achieving desorption of the first adsorption tank. The second treatment system comprises a second adsorption tank, a four electromagnetic valve, a fifth electromagnetic valve and a sixth electromagnetic valve, wherein the four electromagnetic valve and the fifth electromagnetic valve are used for achieving adsorption and exhaust of the second adsorption tank, and the sixth electromagnetic valve is used for achieving desorption of the second adsorption tank. The third electromagnetic valve and the sixth electromagnetic valve are connected with the vacuum pump. The vacuum pump is connected to the position below the oil liquid level of the lowest-grade gasoline storage tank through a pipeline. According to the treatment system, gasoline in the gasoline storage tanks is used as an absorbent so that high-concentration oil gas can be effectively recycled.

Description

technical field [0001] The invention relates to the technical field of oil and gas discharge, in particular to an oil and gas treatment system and a treatment method of a gas station. Background technique [0002] When oil and gas are discharged into the atmosphere, there will be hazards such as polluting the environment, damaging human health, and being flammable and explosive; the existing installation and connection schemes for oil and gas treatment devices in gas stations generally include two types: one is the ventilation pipe of each gasoline storage tank All are equipped with pressure vacuum valves, the air inlet of the processing device is connected to the oil and gas main pipe between multiple gasoline storage tanks of the secondary oil and gas recovery system, and the desorption port of the processing device is connected to the breather pipe of the lowest grade gasoline storage tank; the other The vent pipe of each gasoline storage tank shares a pressure vacuum val...

AI Technical Summary

Problems solved by technology

[0002] When oil and gas are discharged into the atmosphere, there will be hazards such as polluting the environment, damaging human health, and being flammable and explosive; the existing installation and connection schemes for oil and gas treatment devices in gas stations generally include two types: one is the ventilation pipe of each gasoline storage tank All are equipped with pressure vacuum valves, the air inlet of the processing device is connected to the oil and gas main pipe between multiple gasoline storage tanks of the secondary oil and gas recovery system, and the desorption port of the processing device is connected to the breather pipe of the lowest grade gasoline storage tank; the other The vent pipe of each gasoline storage tank shares a pressure vacuum valve, the air inlet of the processing device is connected to the vent pipe of the highest-marked gasoline storage tank, and the desorption port of the processing device is connected to the vent pipe of the lowest-marked gasoline storage tank; the existing The processing device generally adopts adsorption method or membrane separation method to process oil and gas, but based on the above two installation and connection schemes of the gas station, the high-concentration oil and gas after vacuum desorption enters the processing device again through the oil and gas main pipe between gasoline storage tanks , if the high-concentration oil and gas enter the operating treatment device together with the volatile gas from the buried oil tank, the processing load will increase. After multiple cycles, the treatment device will reach adsorption saturation and the adsorption tank will fail; If it is discharged into the atmosphere, it will pollute the environment, that is, the purpose of oil and gas recovery will not be achieved

Images