Locating test system for leakage of gas pipeline and locating method thereof

Abstract

The invention discloses a locating test system for leakage of a gas pipeline. The locating test system comprises a CO2 gas compressor, a gas filter, a first control valve, a high pressure buffer tank, a gas-liquid separator, a leakage simulation pipeline, a second control valve, a gas recycling device and a controller, wherein a gas leakage hole is formed in a gas inlet end of the leakage simulation pipeline; a plurality of acoustic emission sensors and a first temperature sensor are arranged on a first side of the leakage simulation pipeline; a second temperature sensor and a pressure sensor are arranged on a second side of the leakage simulation pipeline; and a heating device is arranged below the leakage simulation pipeline. According to the locating test system, leakage of a CO2 conveying pipeline is located by virtue of feature extraction of a leakage signal through depending on an acoustic emission technology and combining a RBF neural network, the problem that CO2 leakage is difficult to locate can be solved, the locating accuracy is high, and the locating efficiency is high.

Description

Technical field: [0001] The invention belongs to the technical field of gas pipeline leakage location, and in particular relates to a gas pipeline leakage location test system and a location method thereof. Background technique: [0002] With the increasingly serious energy crisis and environmental problems, Carbon Capture and Storage (CCS) technology is considered to be the most effective way to deal with global warming and reduce greenhouse gases. CCS technology refers to the separation of carbon dioxide produced by industry and related energy industries through carbon capture technology, and then transports and stores it to places isolated from the atmosphere such as the seabed or underground through carbon storage means. CCS has the potential to reduce overall mitigation costs and increase flexibility in achieving GHG reductions. Wider adoption of CCS depends on technology maturity, cost, overall potential, technology diffusion and transfer in developing countries and t...

AI Technical Summary

Problems solved by technology

[0003] At present, using pipelines to transport CO2 captured by CCS technology is recognized as the most economical and reliable way. Gas transmission pipelines can be laid underground to achieve long-distance transportation, but long-distance transportation pipelines require sufficient pressure in the pipelines. Under the action of underground environment and internal pressure, there will be aging sites. Even when CO2 is transported by pipelines, there will often be leakage problems. The leaked CO2 will return to the atmosphere and affect the global climate.

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