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Protection system for preventing electrochemical corrosion of metal and control method for preventing electrochemical corrosion of metal

A technology of protection system and control method, applied in the field of metal electrochemical corrosion

Pending Publication Date: 2019-03-26
北京太古行科技发展有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the embodiment of the present invention is that in the prior art, it is impossible to provide sustainable cathodic protection current to the protected metal pipeline by combining the power supply, thus affecting the normal operation of the protected metal equipment

Method used

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  • Protection system for preventing electrochemical corrosion of metal and control method for preventing electrochemical corrosion of metal
  • Protection system for preventing electrochemical corrosion of metal and control method for preventing electrochemical corrosion of metal
  • Protection system for preventing electrochemical corrosion of metal and control method for preventing electrochemical corrosion of metal

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Embodiment 1

[0047] Embodiments of the present invention provide a protection system for preventing electrochemical corrosion of metals, which is used in a control method for preventing electrochemical corrosion of metals, such as figure 1 As shown, the protection system for preventing metal electrochemical corrosion includes: a protected metal 1 arranged on the ground or underground, a power generation device 2 arranged on the ground or on the ground, an energy storage unit 3, a detection circuit 4, a conduction circuit 5, control circuit 6;

[0048]The protection system for preventing metal electrochemical corrosion further includes: a constant current circuit 7 arranged on the ground. The above-mentioned protected metal 1 usually refers to buried metal pipes, also known as buried metals.

[0049] There are many situations in which the protected metal undergoes electrochemical corrosion, and most of the electrochemical corrosion occurs because of its own loss of electrons and other curr...

Embodiment 2

[0074]The embodiment of the present invention provides a control method for preventing electrochemical corrosion of metals, which is used in the protection system for preventing electrochemical corrosion of metals in Embodiment 1, such as Image 6 shown, including the following steps:

[0075] S11. Obtain the current voltage of the protected metal, where the current voltage is the ground voltage of the protected metal. Specifically, the detection circuit obtains the current voltage of the protected metal by connecting the protected metal.

[0076] S12. Determine whether the current voltage is less than the preset voltage. Because the protection voltage preset inside the detection circuit is the preset voltage, the judgment result is obtained by comprehensively comparing the obtained current voltage of the protected metal with the preset voltage.

[0077] S13, if the current voltage is less than the preset voltage, control the conduction circuit to turn off. For example: the...

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Abstract

The invention discloses a protection system for preventing electrochemical corrosion of metal and a control method for preventing electrochemical corrosion of the metal. The protection system for preventing electrochemical corrosion of the metal comprises the protected metal arranged on the ground or underground, and further comprises power generation equipment for generating electric energy, an energy storage unit connected with the power generation equipment and used for storing and providing electric energy, a detection circuit which receives the detection voltage of the protected metal, compares the detection voltage with preset protection voltage, and outputs a control signal, a conducting circuit and a control circuit which receives the control signal and controls the on-off of the conducting circuit according to the control signal, wherein the power generation equipment is connected with the protected metal through the conducting circuit. According to the protection system for preventing the electrochemical corrosion of the metal and the control method for preventing the electrochemical corrosion of the metal, the power generation equipment arranged on the ground can provideworking current for the control circuit, enables the output current of the power generation equipment to flow into the protected metal according to preset conditions through the control circuit, so that electrochemical corrosion of the protected metal is effectively prevented, and a longer protection period is achieved.

Description

technical field [0001] The invention relates to the technical field of metal electrochemical corrosion, in particular to a protection system and a control method for preventing metal electrochemical corrosion. Background technique [0002] The damage caused by the electrochemical action between the metal surface and the ionically conductive electrolyte solution is called electrochemical corrosion. Electrochemical corrosion of metals is very common. It will significantly reduce the strength, plasticity, toughness and other mechanical properties of metal materials, destroy the geometry of metal components, increase the wear between parts, and shorten the service life of equipment. [0003] At present, for the protection of the metal pipeline, generally a lower potential active metal or alloy is connected to the protected metal pipeline to form a new corrosion galvanic cell. The low-potential metal or alloy becomes the sacrificial anode, and the metal pipeline becomes the prote...

Claims

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Application Information

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IPC IPC(8): C23F13/08
CPCC23F13/08
Inventor 不公告发明人
Owner 北京太古行科技发展有限责任公司
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