Oil leakage detecting device as well as oil leakage detecting cable thereof and detecting method

Abstract

The invention discloses an oil leakage detecting device as well as an oil leakage detecting cable thereof and a detecting method. The cable comprises an oil absorbing and expanding main body, an optical fiber which is embedded into the oil absorbing and expanding main body, and at least two limiting rings at the periphery of the oil absorbing and expanding main body for radial limiting, wherein under an expanding state, the outer diameter of the oil absorbing and expanding main body between adjacent two limiting rings is greater than that of the oil absorbing and expanding main body within theradial limiting range of each limiting ring. According to the oil leakage detecting cable disclosed by the invention, detecting stability is relatively high, response time is short, oil absorbing andexpanding rubber absorbs oil to quickly expand, and optical fiber signal propagation speed is high; moreover, the oil leakage detecting device is only sensitive to oil, is strong in physical vibration resistance, is relatively low in false alarm rate, can accurately detect an leakage position according to light propagation speed, is relatively precise in calculation, is relatively high in position detecting precision; and the oil leakage detecting cable is simple to operate.

Description

technical field [0001] The invention relates to the technical field of oil leakage detection, in particular to an oil leakage detection cable used for an oil leakage detection device. The present invention also relates to an oil leakage detection device comprising the oil leakage detection cable, and a detection method based on the oil leakage detection device. Background technique [0002] The oil pipeline system, that is, the pipeline system used to transport oil and petroleum products, is mainly composed of oil pipelines, oil stations and other auxiliary related equipment. For transportation equipment, compared with railway and highway oil transportation, which are also land transportation methods, pipeline oil transportation has the characteristics of large transportation volume, good airtightness, low cost and high safety factor. [0003] During long-term use, due to the erosion of the external environment, oil pipelines or oil storage tanks may leak. Leakage accidents...

AI Technical Summary

Problems solved by technology

However, the existing oil leakage detection cable is easily squeezed to generate false alarms, and the lack of insulation outside the detection line is likely to cause leakage hazards, and there are unsafe factors in flammable and explosive environments

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