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

A method and device for arranging local grounding points of buried pipelines

A technology of buried pipelines and grounding points, which is used in measuring devices, instruments, measuring electrical variables, etc., can solve the problems of lack of standardized operation procedures and low accuracy, avoid subjective factors, and reduce subsequent engineering volume and material loss. , optimize the effect of accurate results

Active Publication Date: 2018-08-03
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method and device for arranging local grounding points of buried pipelines, which is used to solve the problems of low accuracy and lack of standardized operating procedures for the method of arranging local grounding points for buried pipelines based on experience

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
  • A method and device for arranging local grounding points of buried pipelines
  • A method and device for arranging local grounding points of buried pipelines
  • A method and device for arranging local grounding points of buried pipelines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] The buried pipeline 7 is a hollow buried cylindrical conductor covered with an insulating anti-corrosion layer 5. After the buried pipeline 7 is divided into several small sections through the local grounding point, the entire buried pipeline 7 is equivalent to being divided into several small sections. The hollow buried cylindrical conductor; the ground electrode 6 is a conductor or a combination of several conductors buried in the ground to be connected to the ground, which can also be regarded as a buried cylindrical conductor; because any point in the soil around the buried conductor The potential of the buried conductor is jointly generated by the leakage current of all buried conductors; therefore, when calculating the pipe-to-ground potential of the buried pipeline 7, it is necessary to obtain the leakage current of each buried conductor at the corresponding position on the buried pipeline 7 distributed.

[0060] see image 3 , the buried pipeline 7 is divided i...

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 discloses a method and a device for arranging buried pipeline local grounding points, which relate to the technical field of buried pipeline protection and aim at solving the problems of low accuracy and lacked standard operation process when local grounding point arrangement is carried out on the buried pipeline according to experience. The method of arranging buried pipeline local grounding points comprises steps: an initial pipe-ground potential difference and pipe-ground potential differences from a first to an Hth are acquired; the minimal pipe-ground potential difference and the corresponding position vector are then acquired; the minimal pipe-ground potential difference is then compared with the maximal pipe-ground potential allowed by the buried pipeline, and when conditions are met, the acquired position vector corresponding to the minimal pipe-ground potential difference is the target result; or otherwise, one is added to the number of local grounding points and the minimal pipe-ground potential difference is then acquired again until the conditions are met. The method of arranging buried pipeline local grounding points provided by the invention is used for optimally arranging the buried pipeline local grounding points.

Description

technical field [0001] The invention relates to the technical field of buried pipeline protection, in particular to a method and a device for arranging local grounding points of buried pipelines. Background technique [0002] With the continuous development of the power system, there are more and more long-distance and large-capacity power transmission projects. For such power transmission projects, in the prior art, power transmission is generally realized through a high-voltage DC grounded transmission system. This HVDC grounded power transmission system adopts a single-pole-ground operation mode at the initial stage of operation, annual maintenance, and troubleshooting. The current can be as high as thousands of amperes; therefore, in this case, when the DC ground electrode is relatively close to the buried pipeline used to transport oil and gas resources, the DC current flowing in the ground will make the pipe-ground potential distribution of the buried pipeline Unbalan...

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 Patents(China)
IPC IPC(8): G01R19/00
CPCG01R19/00
Inventor 廖永力张波孟晓波曾嵘邹林李锐海何金良曹方圆陈晓张巍吴新桥张贵峰张曦龚博朱烨
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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