Interlocking device and method for monitoring and alarming of main line pipe burst in gas pipeline distribution station

Abstract

The invention discloses an interlocking device for monitoring and alarming the explosion of a trunk line pipeline in a distribution station of a gas transmission pipeline. The two ends are connected; the inbound pipeline, one end of which is provided with two branches and is connected to both ends of the first bypass pipeline, and the other end of the inbound pipeline is connected to the pipeline in the station; the first pressure transmission, which is arranged in parallel with the second pressure transmission , one end of the first pressure transmitter and the second pressure transmitter are both connected to the upstream section of the first bypass line, and the other ends of the first pressure transmitter and the second pressure transmitter are connected to the junction box; the third pressure transmitter is connected to the first pressure transmitter Four pressure transmissions are arranged in parallel, one end of the third pressure transmission and the fourth pressure transmission are connected to the downstream section of the first bypass line, and the other ends of the third pressure transmission and the fourth pressure transmission are connected to the junction box; the controller, It is connected with the junction box by a seventh cable.

Description

technical field [0001] The invention relates to the technical field of gas transmission pipeline systems, in particular to an interlocking device and method for monitoring and alarming of pipe bursts in main line pipelines of distribution stations of gas transmission pipelines. Background technique [0002] During the operation of the pipeline, due to pipeline corrosion, third-party damage, construction quality and other reasons, the natural gas pipeline ruptures or breaks, resulting in natural gas leakage, which eventually brews into an oil and gas pipeline safety accident, causing great adverse effects on society and enterprises. It has also brought a serious threat to the safety of life and property of the people around the pipeline. If the relevant information such as whether the pipeline is broken or broken is not grasped in time and dealt with in time, the consequences of the accident will continue to increase, causing serious environmental pollution and significant pe...

AI Technical Summary

Problems solved by technology

[0002] During the operation of the pipeline, due to pipeline corrosion, third-party damage, construction quality and other reasons, the natural gas pipeline ruptures or breaks, resulting in natural gas leakage, which eventually brews into an oil and gas pipeline safety accident, causing great adverse effects on society and enterprises. It also poses a serious threat to the life and property safety of the people around the pipeline.

If the relevant information such as whether the pipeline is broken or broken is not grasped in time and dealt with in a timely manner, the consequences of the accident will continue to increase, causing serious environmental pollution and major personal and property losses.

[0003] For gas pipeline leakage caused by pipeline corrosion, third-party damage, construction quality, etc., since natural gas is a compressible fluid, previous projects could not use the oil pipeline method for leakage monitoring, and it was impossible to realize emergency shutdown of the transmission system in case of abnormal conditions The emergency shutdown function of entering and exiting stations, so that only when there are major accidents such as natural gas leakage, fire or explosion that can be observed by human eyes, relevant problems can be found

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