Pipeline strain monitoring and early warning system and method

Abstract

The invention provides a pipeline strain monitoring and early warning system. The system comprises elastic monitoring rod pieces. The system comprises two elastic monitoring rod pieces, two sensing optical fibers, a multi-channel switching module, a distributed optical fiber strain demodulator and a connecting optical fiber; the two elastic monitoring rod pieces are symmetrically arranged on the two sides of a to-be-monitored pipe section, each elastic monitoring rod piece has a rectangular hollow section, and rectangular grooves are formed in the outer walls of the two sides of the hollow section; the two sensing optical fibers are respectively arranged in the rectangular grooves of the two elastic monitoring rod pieces; the multi-channel switching module is connected with the sensing optical fibers and is used for switching channels between the two sensing optical fibers; the distributed optical fiber strain demodulator is connected with the multi-channel switching module and is used for emitting detection laser and receiving a feedback signal; and the connecting optical fiber is used for connecting the distributed optical fiber strain demodulator with the multi-channel switching module and connecting the multi-channel switching module with the sensing optical fibers. According to the pipeline strain monitoring and early warning system and method of the invention, a layout scheme of the monitoring and early warning system is provided, the data acquired by an acquisition system is analyzed, a basis is provided for pipeline structure safety, and accurate and comprehensive pipeline structure health monitoring and safety early warning are realized.

Description

technical field [0001] The invention relates to the technical field of pipeline structure safety monitoring, in particular to a pipeline strain monitoring and early warning system and method. Background technique [0002] With the rapid development of modernization, the demand for energy is increasing day by day. As the main way of oil and gas transportation, pipeline is the "lifeline engineering" system for the development of oil and gas resources. Due to the increasing dependence of national economic and social development on oil and gas pipelines, the sensitivity of pipeline safety to economic, environmental and social stability is becoming more and more important. The service safety of oil and gas pipelines has become the focus of attention of the public, government and enterprises. [0003] However, with the increase of pipelines, the growth of pipe age, the long-term effects of various complex factors in the pipeline service process, the phenomenon of pipeline structu...

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Problems solved by technology

[0003] However, with the increase of pipelines, the growth of pipe age, the long-term effects of various complex factors in the pipeline service process, the phenomenon of pipeline structural state degradation is common, and pipeline safety accidents occur from time to time, which seriously affects people's lives, property safety and ecological environment. posed a great threat

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