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Novel system for monitoring stress fatigue of pipeline structure

A pipeline and stress distribution technology, applied in pipeline systems, measuring devices, instruments, etc., can solve the problems of precise manual installation, easy corrosion, difficult to achieve satisfactory solutions, etc., to achieve the effect of monitoring structural fatigue and safety, and preventing leakage

Inactive Publication Date: 2016-07-20
SUZHOU BAORUN ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method often requires the removal of the coating on the outer wall of the pipe, as well as precise installation by hand
It is difficult to achieve a satisfactory solution in high-risk environments where corrosion is easy, high temperature and high pressure, and manual installation is difficult

Method used

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  • Novel system for monitoring stress fatigue of pipeline structure
  • Novel system for monitoring stress fatigue of pipeline structure
  • Novel system for monitoring stress fatigue of pipeline structure

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Embodiment Construction

[0011] The solution provided by the present invention is to install a special vibration sensor recorder for real-time vibration measurement. The main principle is to use the acceleration and angular velocity sensors to record the vibration reading data at the installed position, and then calculate the entire Stress and fatigue distribution of the pipeline structure, so as to achieve the purpose of monitoring the fatigue and safety of the entire pipeline structure.

[0012] figure 1 The example diagram shows a deep water mining system 10, which consists of an offshore platform 11 connected to a well head explosion-proof device 13 on the seabed through a pipeline structure 12. A cable processing system 15 and a data acquisition and processing system 14 are installed on the offshore platform. As shown in the illustration, special vibration sensor recorders 16 are installed in different positions of the pipeline structure, and are connected to the data acquisition and processing...

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Abstract

The invention discloses a novel system for monitoring stress fatigue of a pipeline structure based on real-time measured seismic acceleration data. A vibration sensing recorder is used for acquiring data in real time, and monitoring acceleration information acquired from different positions of the pipeline structure; and curvature and stress of measured potions are precisely obtained by a mode selection and superposition method, so that the purpose of monitoring the fatigue and the safety of the structure operating for a long time in a high-risk environment is achieved.

Description

technical field [0001] The invention is applied to pipeline structure safety monitoring to effectively prevent structural accidents and leakage of dangerous objects. By collecting real-time vibration data, the stress and fatigue of key weak links can be accurately obtained, so as to achieve the purpose of monitoring structural fatigue and safety of long-term operation in high-risk environments. Background technique [0002] The pipeline structure is an important medium for energy production and transportation. Due to the special requirements of high temperature and high pressure, the safety of the pipeline structure is particularly important. Due to the structural failure of pipelines, especially the structural failure caused by vibration fatigue, safety accidents have occurred from time to time both at home and abroad. A large part of the accidents have been thoroughly investigated and found that many accidents can be reasonably avoided if corresponding measures are taken ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F17D5/02
CPCF17D5/02G01H17/00
Inventor 葛龙胡颖
Owner SUZHOU BAORUN ELECTRONICS TECH