Oil and gas monitoring system and method

Abstract

The invention discloses an oil and gas monitoring system. The oil and gas monitoring system includes a first collection module, a second collection module, a gas chromatograph and a data processing module, wherein the first collection module is used for collecting first oil and gas samples at an inlet of an oil and gas recovery device and diluting the first oil and gas samples, and first oil and gas is obtained; the second collection module is used for collecting second oil and gas samples at an outlet of the oil and gas recovery device and diluting the second oil and gas samples, and second oil and gas is obtained; the gas chromatograph is connected with the first collection module and the second collection module separately and used for performing parallel monitoring analysis on the concentration of the first oil and gas and the concentration of the second oil and gas, and a first analysis result and a second analysis result are obtained; and the data processing module is connected with the gas chromatograph and used for performing data processing and display on the first analysis result and the second analysis result. The invention further provides an oil and gas monitoring method, continuous online monitoring of high-concentration oil and gas can be performed, and parallel monitoring of the concentration of the first oil and gas at the inlet and the concentration of the second oil and gas at the outlet of the oil and gas recovery device is realized.

Description

technical field [0001] The invention relates to the technical field of environmental monitoring, in particular to a system and method for monitoring oil and gas generated or discharged from an oil storage depot. Background technique [0002] Oil gas is one of the main characteristic pollutants of VOCs, and it is also an important cause of air pollution such as smog and photochemical smog. Oil depots are bases for receiving, storing, transferring, and distributing crude oil and petroleum products. The volatilized oil and gas seriously pollute the ambient air and require oil and gas recovery treatment. In order to better monitor the processing efficiency of the oil and gas recovery device and whether the oil and gas discharge is up to standard, it is necessary to continuously monitor the concentration of oil and gas volatilized by the oil and gas recovery device in the oil depot. [0003] At present, oil and gas are generally monitored by the national standard monitoring meth...

AI Technical Summary

Problems solved by technology

However, the oil and gas monitoring system in the prior art uses a non-explosion-proof gas chromatograph, and all equipment realizes explosion-proof by adding a positive pressure fume hood, which actually does not play an explosion-proof role, and there are potential safety hazards; High, especially the oil and gas concentration at the inlet of the oil and gas recovery device can reach 1000mg / m 3 , the range of conventional gas chromatography is difficult to meet the measurement requirements. Generally, the concentration at the outlet of the oil and gas recovery device is mainly monitored online; at the same time, the monitoring system cannot monitor the concentration of the inlet and outlet of the oil and gas recovery device at the same time, and the processing efficiency of the oil and gas recovery device cannot be calculated online.

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