On-line monitoring device for leakage of buried tank field of gas station

Abstract

The invention provides an on-line monitoring device for the leakage of a buried tank field of a gas station. The on-line monitoring device comprises a sampler, a detector, a display alarm apparatus and a collecting pipe. According to the on-line monitoring device provided by the invention, the above defects of the on-line monitoring device for the leakage of the buried tank field can be overcome effectively, and the on-line continuous monitoring can be carried out on oil gas leaked in soil accurately and timely, therefore the on-line monitoring device is extensively applicable to the seepage and leakage detection of the oil in soil of the general single-layer buried tank fields used by the gas stations in China.

Description

technical field [0001] The invention relates to the field of petrochemical technology, in particular to an on-line leakage monitoring device for buried tank farms of gas stations. Background technique [0002] With the continuous development and progress of society, people's awareness of environmental protection has been continuously enhanced, and people have begun to pay more and more attention to various environmental issues. Buried oil tanks buried in the ground for a long time will leak under the action of natural disasters such as earthquakes and corrosion. The EPA statistics of the US Environmental Protection Agency show that the average age of steel buried oil tanks is 17 years. If the leakage cannot be found in time, it will not only cause direct safety hazards and economic losses, but also pollute the soil and groundwater, thereby causing serious harm to the environment and human health. Therefore, it is necessary to strengthen the leakage monitoring of buried oil ...

AI Technical Summary

Problems solved by technology

However, the use of soil oil and gas monitoring methods and groundwater monitoring methods in gas stations is often limited to establishing observation wells in buried tank farms, and artificially taking soil or groundwater samples from time to time to analyze (observe) whether there is oil, so as to determine whether there is a leak , often time-consuming and laborious and cannot be continuously detected

At present, although foreign companies have developed online soil or groundwater monitoring methods based on oil-water sensors or oil-gas sensitive polymer detectors, the installation of monitoring devices requires large-scale excavation of tank farms, which is more suitable for new gas stations Installed and used together during construction, not applicable to in-service gas stations

Moreover, since this sensor-based detection device does not have active sampling components, it is often impossible to detect oil and gas leakage in the soil far away from the sensor in a timely and rapid manner.

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