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Multi-channel leakage monitoring method for buried tank area of gas station

A technology for gas stations and buried tanks, which is applied in the field of multi-channel leakage monitoring in buried tank farms of gas stations, can solve the problems of poor accuracy, poor applicability, time-consuming and labor-intensive, etc., and achieves convenient use, high accuracy, and good technical effects. Effect

Active Publication Date: 2014-08-13
CHINA PETROLEUM & CHEM CORP QINGDAO RES INST OF SAFETY ENG +1
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AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is the problems of poor applicability, time-consuming and laborious, and poor accuracy existing in the prior art. It provides a new multi-channel leakage monitoring method for buried tank farms in gas stations.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The invention provides a multi-channel leakage monitoring method in the buried tank area of ​​the gas station. The sample collected by at least one sampling pipe arranged in the buried tank area of ​​the gas station flows through one of the sample channels of the multi-position valve under the action of the sampling pump. Enter the photoionization combustible gas detector, if the sample amount measured by the detector exceeds the set upper limit of the leaked gas amount, an alarm will be given through a display alarm connected to the detector. Among them, the sampling pump, multi-position valve, and detector are all explosion-proof, the sampling pump is a micro-vacuum pump, the sampling tube is a porous pressure-resistant tube made of metal or plastic, and the detector is a high-sensitivity photoionized combustible gas The detector and the display alarm are digital display devices with sound and light alarm functions.

[0018] When the device is installed, connect the s...

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Abstract

The invention relates to a multi-channel leakage monitoring method for a buried tank area of a gas station and mainly solves the problems of poor applicability, time conservation and labor conservation in the prior art. According to the multi-channel leakage monitoring method for the buried tank area of the gas station, a sample collected by at least one sampling pipe which is arranged in the buried tank area of the gas station flows through one of sample channels of a multi-way valve under the action of a sampling pump and then enters a photoionization combustible gas detector; when the detector detects that the content of volatile organic gas in the sample exceeds the lower sensitivity limit value of the photoionization combustible gas detector and exceeds the upper gas leakage amount setting limit value of a sampling point; a display alarm which is connected with the detector gives an alarm to prompt leakage. According to the technical scheme, the problems are better solved. The method can be applied to leakage monitoring of the buried tank area of the gas station.

Description

technical field [0001] The invention relates to a multi-channel leakage monitoring method for a buried tank area of ​​a gas station. 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 tanks and take effective measures to prevent le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D90/50
Inventor 肖安山邹兵姜素霞胡绪尧
Owner CHINA PETROLEUM & CHEM CORP QINGDAO RES INST OF SAFETY ENG
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