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Data acquisition method and device

A technology for data acquisition and current acquisition, applied in the field of cathodic protection, which can solve the problems of poor reliability of potential correspondence

Active Publication Date: 2020-08-11
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problem of poor reliability of the potential correspondence relationship obtained in the prior art, the present invention provides a data acquisition method and device

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  • Data acquisition method and device

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Embodiment Construction

[0053] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0054] The embodiment of the present invention provides a data acquisition method, such as Picture 1-1 As shown, the method includes:

[0055] Step 101: The acquisition component acquires multiple currents on the current acquisition module in each current acquisition component of the monitoring component, and the polarization potential of the protective electrode in each current acquisition component under the action of the corresponding current.

[0056] Step 102: The acquisition component establishes a corresponding relationship between current and potential based on the acquired current and polarization potential.

[0057] Among them, such as Figure 1-2 As shown, the monitoring component 300 includes a porous structure 310 and at least two curr...

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Abstract

The invention discloses a data acquisition method and a data acquisition apparatus, and belongs to the technical field of cathode protection. The data acquisition method comprises that an acquisitionassembly acquires a plurality of currents on the current acquisition modules in each current acquisition component of a monitoring assembly, and the polarization potentials of the protection electrodes in each current acquisition component under corresponding current effects; the acquisition assembly establishes the corresponding relationship between the current and the potential according to theacquired currents and the acquired polarization potentials, wherein the monitoring assembly comprises a porous structure and at least two current acquisition components. According to the present invention, with the method and the apparatus, the problems that the reliability of the corresponding relationship between the current and the potential is poor, and the reliability of the polarization potential test method in the cathode protection technology is poor can be solved, the reliability of the corresponding relationship between the current and the potential can be improved, and the method and the apparatus are used for the detecting and the monitoring of the cathode protection effect of buried or underwater metal structure objects.

Description

Technical field [0001] The invention relates to the technical field of cathodic protection, in particular to a data acquisition method and device. Background technique [0002] Cathodic protection system is a system that reduces the corrosion degree of buried pipelines. The cathodic protection system includes pipelines, potentiostat and auxiliary anode ground bed connected in sequence. In order to ensure the protection effect of the cathodic protection system, it is necessary to measure the polarization potential of the cathodic protection system in real time (that is, the potential at the moment of power failure of the cathodic protection system). In order to measure the polarization potential of the cathodic protection system, you can first obtain the current supplied by the potentiostat to the pipeline through the auxiliary anode bed, and then query the polarization potential corresponding to the current in the corresponding relationship between the current and the potential,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F13/04
CPCC23F13/04C23F2213/10
Inventor 徐华天毕武喜蓝卫陈洪源滕延平王禹钦郭正虹孙伶盖健楠张丰徐承伟
Owner PETROCHINA CO LTD
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