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Double-host distributed optical fiber type prestressed pipeline running safety prewarning system

A distributed optical fiber and safe operation technology, which is applied in alarms, measuring devices, instruments, etc., can solve the problems of complicated operation and real-time warning of emergencies, and achieve the effect of reducing noise and vibration interference outside the pipe

Active Publication Date: 2014-03-26
TIANJIN KEEP RUNNING TECH DEV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

Although the free-swimming detector can detect under the working state of the pipeline, it still has the disadvantages of complicated operation and no real-time early warning for emergencies

Method used

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  • Double-host distributed optical fiber type prestressed pipeline running safety prewarning system
  • Double-host distributed optical fiber type prestressed pipeline running safety prewarning system

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Embodiment Construction

[0018] The present invention will be described in further detail below through specific examples. The following examples are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0019] A dual-host distributed optical fiber prestressed pipeline operation safety warning system, including an indoor module 1 and an outdoor module 2, the indoor module is connected to the outdoor module through an optical fiber, the outdoor module is installed on the prestressed pipeline 4, and a butterfly valve is arranged on the prestressed pipeline 7. An optical fiber 5 is arranged on the inner wall of the prestressed pipeline, and (1) the outdoor module includes a pipeline end coupler 3, an inlet end coupler 6 and an outlet end coupler 8, and matching outlets are arranged outside the butterfly valve of the prestressed pipeline. The end coupler and the lead-in coupler, the lead-out coupler and the lead-in coupler are connected by optical fibers, the ...

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Abstract

The invention relates to a double-host distributed optical fiber type prestressed pipeline running safety prewarning system which comprises an indoor module and an outdoor module, wherein the outdoor module comprises a pipeline-end coupler, a leading-in-end coupler and a leading-out-end coupler; the leading-out-end coupler and the leading-in-end coupler which are matched with each other are arranged outside a butterfly valve of a prestressed pipeline respectively and connected through an optical fiber; the optical fiber distributed on the inner wall of the prestressed pipeline is guided to the outside of the prestressed pipeline through the leading-out-end coupler and guided to the inside of the prestressed pipeline through the leading-in-end coupler; the indoor module comprises two computers, two data acquisition cards, two photoelectric detectors, two semiconductor lasers and two indoor couplers. The system is simple in structure, scientific and reasonable in design, very high in monitoring sensitivity and positioning accuracy for steel wire breakage, easy to realize, reliable in running and more suitable for long-distance prestressed pipelines.

Description

technical field [0001] The invention belongs to the field of pipeline safety early warning systems, in particular to a double host distributed optical fiber prestressed pipeline operation safety early warning system. Background technique [0002] Prestressed pipelines include prestressed steel cylinder concrete pipelines. As the main pipe for long-distance and large-diameter water transportation, it has the advantages of wide application range, high cost performance, long service life, good seismic performance, corrosion resistance, convenient installation, and low operating cost. It is precisely because of these advantages that prestressed pipelines are widely used in hydraulic power, hydropower, municipal water supply, drainage and other fields by developed countries such as Europe and the United States. The application of prestressed pipelines in China began in the late 1980s. In recent years, the large-scale water transmission projects that have been built or are under c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B21/18G01H9/00
Inventor 周钊名靳志刚
Owner TIANJIN KEEP RUNNING TECH DEV
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