Detecting system for tank bottom leakage optical fiber of atmospheric storage tank

A technology for optical fiber detection and atmospheric storage tanks, which is applied in the application of light to test fluid tightness, measuring devices, fluid tightness testing, etc. It can solve the problem of inability to achieve all-weather measurement, inability to determine the location of leaks, and spending a lot of manual work Quantity and other issues, to achieve the effect of improving reliability and accuracy, strong explosion-proof and moisture-proof performance, and convenient search and query

Inactive Publication Date: 2008-04-02
CHINA PETROLEUM & CHEM CORP
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Problems solved by technology

This method has a series of problems, such as low detection accuracy, greatly affected by environmental factors and personnel factors, requires a lot of manual work, low work efficiency, can not achieve all-weather measurement, and

Method used

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  • Detecting system for tank bottom leakage optical fiber of atmospheric storage tank
  • Detecting system for tank bottom leakage optical fiber of atmospheric storage tank

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Embodiment Construction

[0015] The sensing system uses a laser as the incident light source, and uses a single-mode fiber as the light-intensity sensing fiber. The incident light is divided into 32 paths through the fiber splitter coupler, and reaches 32 sensing heads through each path of optical fiber. The optical fiber end face of the probe is incident on oil, water or air to produce reflections of different intensities. The reflected light is detected by a photoelectric detector PIN tube and passed through an amplifying circuit. It is connected with a data acquisition card, and the data is analyzed, processed, displayed, recorded and recorded by an industrial computer. Call the police.

[0016] The system includes sensors and a complete set of devices for signal acquisition, analysis and processing. Can detect 32 sensor signals. Conduct a simulated monitoring leak test.

[0017] The number of sensor distribution points is 32, and the positions can be arranged according to the requirements of use...

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Abstract

The invention discloses a detection system for optic-fibre leakage at the bottom of a normal atmosphere storage tank, which comprises a plurality of sensing systems. lasers are adopted for the plurality of sensing systems as incoming ray sources which are connected to optical intensity style optical fibre sensing probes via optical fibres and are divided into a plurality of routes via optical-fibre couplers and reach a plurality of sensing probes, reflex detected by the sensing probes enters PIN tubes and are connected with a data collection card via a photoelectric conversion circuit and an amplifying circuit, the data collection card is connected with an industrial computer for data analysis, processing, displaying and recording. The detecting system alarms by software automatically. The system has high precision detection, rapid speed, timely alarm, accurate location, strong anti-interference capability, high safety and convenient system operation, can display where the storage tank leaks and how long the storage tank leaks in real-time by curve mode and digital mode and has aural and visual alarm. Due to the flexible system communication mode, the invention can realize off-site search and monitoring, thereby accelerating processing speed, decreasing economic loss and reducing environment pollutions.

Description

technical field [0001] The invention belongs to an oil tank detection device, in particular to an optical fiber detection system for leakage at the bottom of an atmospheric storage tank. Background technique [0002] At present, most of my country's oil storage tank leakage detection technology adopts manual observation method. This method has a series of problems, such as low detection accuracy, greatly affected by environmental factors and personnel factors, requires a lot of manual work, low work efficiency, can not achieve all-weather measurement, and can only be found when the leakage is serious , the location of the leak cannot be determined, there are serious environmental pollution problems, poor safety guarantees, etc., which will cause great losses to the management of oil products. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an optical fiber detection system for tank bottom leakage of atmospheric ...

Claims

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Application Information

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IPC IPC(8): G01M3/00G01M3/38B65D90/50
Inventor 李春树高文赵启大郭团刘丽辉赵路明董波黄桂岭吕俊峰康红闫宇陈少华高世钰
Owner CHINA PETROLEUM & CHEM CORP
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