Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Detection device and detection method for external corrosion of submarine pipelines

A detection device and a technology for submarine pipelines, which are applied to measurement devices, material analysis by electromagnetic means, instruments, etc., can solve problems such as lack of detection means and affecting submarine pipeline transportation.

Inactive Publication Date: 2018-02-09
HARBIN ENG UNIV
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lack of external corrosion detection methods for submarine pipelines has become a technical barrier affecting the transportation of submarine pipelines

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Detection device and detection method for external corrosion of submarine pipelines
  • Detection device and detection method for external corrosion of submarine pipelines
  • Detection device and detection method for external corrosion of submarine pipelines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention will be described in more detail below with examples in conjunction with the accompanying drawings.

[0020] combine figure 1 and figure 2 , The submarine pipeline external corrosion detection device of the present invention mainly includes a pressure difference acquisition sensor 1 , a data acquisition and processing module 2 , a signal transmitter 3 , a remote observation control terminal 4 and a pipeline 5 . Wherein the pressure difference acquisition sensor, data acquisition and processing module, and signal transmitter are located under the seawater, and the remote observation control terminal is located on the seawater, and the signal is transmitted through the optical fiber.

[0021] The differential pressure acquisition sensor uses a platinum electrode. Platinum electrode has good stability; strong anti-polarization performance; the temperature coefficient of the electrode with good temperature response characteristics is smaller, the se...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a detection device and detection method for external corrosion of submarine pipelines. According to the invention, a voltage difference method is applied to damage detection ofouter anticorrosive coatings of oil and gas transmission pipelines in a marine environment based on analysis of the surface current density distribution characteristics of submarine pipelines under cathodic protection and the field distribution characteristics of surrounding environments thereof, and designing of a hardware part and a software part of a system is completed. In the aspect of hardware, a data acquisition card is used as a core device, and high-speed acquisition of signals is realized; an appropriate electrochemical signal measuring probe is selected; a signal amplification circuit and a data processing module for filtering and storage are designed; remote communication between overwater and underwater processors is realized via an optical fiber transmission module; and on the basis of a hardware system, a set of software for acquiring and analyzing potential signals of electric fields of submarine pipeline environments is written based on a LabVIEW development environment, thereby realizing the functions of signal acquisition and storage, morphological filtering, spectrum analysis, alarming of damage and corrosion spots, etc.

Description

technical field [0001] The invention relates to a detection device for external corrosion of a submarine pipeline. The invention also relates to a method for detecting external corrosion of a submarine pipeline. Background technique [0002] Oil and gas pipeline transportation has the characteristics of less investment in the transportation process, short transportation cycle, large transportation volume, and high efficiency, making it called "energy blood". It has very obvious advantages in the five major transportation industries and plays an important role in economic development. important role. However, frequent safety accidents caused by damage to submarine pipelines not only destroy the ecological environment, but also cause incalculable losses to the national economy, and also endanger people's lives. Therefore, all walks of life are paying more and more attention to the safety of submarine pipeline operation. [0003] At present, the external corrosion detection ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/416
CPCG01N27/416
Inventor 国强于鑫滕龙张典飞徐庆帅王强波戚连钢付文宇李高源
Owner HARBIN ENG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com