Intelligent remote monitoring method for protecting cathode of underground pipeline

A technology for cathodic protection and underground pipelines, applied in the field of cathodic protection of underground pipelines, intelligent remote monitoring, and monitoring, which can solve problems such as hidden safety hazards, failure to monitor and adjust protection systems, and failure of pipelines and storage tanks to know the real status of cathodic protection in time. , to achieve the effect of rapid and accurate search, accurate data, and expansion of monitoring items and data

Active Publication Date: 2014-05-21
上海道盾科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the system still has the following problems: when the relevant data of pipeline cathodic protection is abnormal, it cannot remind the management personnel, and it cannot realize real-time monitoring and management of the protected facilities in the field and under harsh conditions; and the obtained management data is only the potentiostat Or the data of station equipment, generally there is no data of test piles, which cannot reflect the cathodic protection status of th

Method used

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  • Intelligent remote monitoring method for protecting cathode of underground pipeline
  • Intelligent remote monitoring method for protecting cathode of underground pipeline
  • Intelligent remote monitoring method for protecting cathode of underground pipeline

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0062] Example 1:

[0063] Set the interval time for data upload between the potentiostat and the test pile by issuing instructions from the monitoring host. The data upload interval of the potentiostat is short, usually 5 minutes, and the higher data upload frequency can obtain the real-time data as possible; the data upload interval of the test pile is long, usually 12 hours, for daily routine test data collection. When the data is uploaded, the potentiostat and the test pile independently perform GPS timing and time synchronization through its assembled GPS module to ensure the time accuracy of the data upload.

[0064] The potentiostat uploads its operation data and GPS data to the monitoring host through the wireless network according to the set time frequency, and the test pile uploads its potential data and GPS data to the monitoring host through the wireless network according to the set time frequency, and the monitoring host receives After the sampling signal upload...

Example Embodiment

[0066] Example 2:

[0067] Carry out the daily data sampling work according to Embodiment 1. If the sampling signal is not within the normal threshold range of the standard signal, the monitoring host determines that the sampling signal is abnormal, and the monitoring personnel manually calculate the modified value according to the sampling signal, and manually issue the modification instruction. To the potentiostat, the potentiostat modifies its working potential value after receiving the modification instruction from the monitoring host, so that the cathodic protection current of the pipeline under its jurisdiction works normally.

[0068] At the same time, the monitoring personnel can also manually issue test instructions, modify the time interval for data uploading of the test piles, increase the data uploading time frequency of the test piles, or control the test piles in real time to perform power-off tests and upload data to facilitate troubleshooting.

[0069] Adding m...

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Abstract

The invention discloses an intelligent remote monitoring method for protecting a cathode of an underground pipeline. According to the method, test piles and a potentiostat are used, the potentiostat is electrically connected with a steel pipeline to form a transmission channel for inputting electrical performance parameters (protective potential), and the test piles are arranged on the underground pipeline according to an appropriate separation distance on a pipeline required to be monitored according to a selected separation distance; a system for accurately positioning and timing the test piles and potentiostat is built through GPS (global positioning system) modules in the test piles and potentiostat by using a satellite system; an intelligent collection, processing and transmission system of real-time measured data and control data is built through a GPRS (general packet radio service) wireless network, a server and a monitoring host; a GPS is used for performing unified timing to simultaneously cut off the power supply and acquire potential values of all the test piles on the underground pipeline; the potential data of each test pile are acquired when the power supply is cut off for 0.05-0.3 second; and a monitoring center gives an instruction through a monitoring host system according to a display result of an obtained data set image curve to change a set protective potential value of the potentiostat, and transmits the change instruction to the potentiostat through a network to ensure that the underground pipeline achieves the best protected state.

Description

technical field [0001] The invention relates to an anti-corrosion technology, in particular to an intelligent remote monitoring and monitoring method for cathodic protection of underground pipelines by means of a GPRS network and a GPS timing and positioning system. Background technique [0002] Steel oil pipelines are essential container facilities for oil transportation in the petroleum and petrochemical industries. However, during operation, they are often corroded by internal and external environmental media, causing damage to underground metal pipes and burying various safety hazards. Cathodic protection technology is a technology to prevent or inhibit electrochemical corrosion of protected metal structures. By applying a certain cathodic current to the protected metal, the potential of the protected metal is negative to a certain potential value, and the anode reaction on it is suppressed, so that the corrosion of the metal is controlled. [0003] In pipeline corrosio...

Claims

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Application Information

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IPC IPC(8): C23F13/04H04L29/06G05B19/418
Inventor 黄金钊梁宇
Owner 上海道盾科技股份有限公司
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