Membrane method oil and gas recovery group control device and using method thereof

Abstract

The invention discloses a membrane-method oil-gas recycling and grouping control device and an application method thereof. The membrane-method oil-gas recycling and grouping control device comprises an oil-gas inlet and a plurality of groups of membrane assemblies, wherein the plurality of groups of membrane assemblies are connected in parallel, each group of membrane assembly is formed by connecting a plurality of rubber-state membrane assemblies in parallel, the oil-gas inlet is connected to an inlet end of each rubber-state membrane assembly by virtue of a pipeline I, each rubber-state membrane assembly comprises two outlet ends, i.e. a permeation-side outlet end and a seepage-side outlet end, the permeation-side outlet end of each rubber-state membrane assembly is connected with a vacuum pump by virtue of a pipeline II, and the vacuum pump is connected with an absorption tower or a gasoline storage tank; the seepage-side outlet end of each rubber-state membrane assembly is connected to an exhaust opening by virtue of a pipeline, and the gas is discharged by reaching the standard by virtue of the exhaust opening. By grouping the membrane assemblies and variable-frequency controlling the vacuum pump, the flux of the membrane assemblies can be precisely matched with the oil-gas flow rate, so that the oil-gas separation efficiency of the membrane assemblies can be improved, and the operation abnormality of the device can be avoided.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a membrane method oil and gas recovery grouping control device and a use method thereof. Background technique [0002] Oil and gas recovery refers to the process of airtightly collecting the oil and gas that evaporates into the atmosphere during gasoline storage, transportation and sales, and recovering them through various processes. In recent years, with the increasingly serious situation of air pollution in my country, the State Environmental Protection Administration has successively issued GB20950 "Emission Standards of Air Pollutants for Oil Storage Depots" and GB20952 "Emission Standards of Air Pollutants for Gas Stations", requiring all oil storage depots and gas stations to Complete oil and gas recovery transformation before the specified time. [0003] Traditional oil and gas recovery methods mainly include condensation method, absorption me...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a membrane method oil and gas recovery grouping control device and its use method, which mainly solves the problem of large oil flow and oil gas flow fluctuation caused by oil depots and refineries sending oil to tank cars. The present invention can It better matches the fluctuation of oil and gas flow at the inlet of oil depots and refineries in the process of sending oil to vehicles, and has the characteristics of simple principle and stable performance

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