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Impressed current catholic protection device for ship

An applied current and cathodic protection technology, which is applied in the field of material corrosion protection, can solve problems such as cathodic protection of propellers and propeller shafts, and achieve good protection and uniform distribution of protection potentials

Inactive Publication Date: 2012-05-30
725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the embodiment of the present application provides a ship impressed current cathodic protection device to solve the problem that the existing external cathodic protection device cannot provide effective cathodic protection for the propeller and the propeller shaft, so that the protection potential of each part of the hull is uniform

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  • Impressed current catholic protection device for ship
  • Impressed current catholic protection device for ship
  • Impressed current catholic protection device for ship

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Embodiment Construction

[0022] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0023] figure 1 It is a structural schematic diagram of the ship impressed current cathodic protection device provided in the embodiment of this application.

[0024] Such as figure 1 As shown, in the figure 4 is the hull, 5 is the propeller, and the ship's impressed current cathodic protection device includes: a power supply device 1, ...

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Abstract

The application discloses an impressed current catholic protection device for a ship. The device comprises a power supply unit, a reference electrode, a plurality of auxiliary anodes and an automatic grounding controller, wherein the power supply unit comprises an output unit with a plurality of output terminals and a control unit connected with the output unit; the automatic grounding controlleris arranged between a propeller axis and a ship body; the auxiliary anodes are arranged on the outside of the ship body and are respectively connected with the output terminals of the output unit; the ship body is connected with the input terminals of the output unit; the reference electrode is arranged on the ship body between each two adjacent auxiliary anodes; and the control unit is used for regulating the output current of the output unit. According to the impressed current catholic protection device for the ship, the automatic ground controller arranged between propeller axis and the ship body is not only capable of detecting the potential difference between the ship body and the propeller axis, but also capable of automatically outputting proper current to remove the potential difference when detecting the potential difference and consequently keeping the potential difference between the ship body and the propeller axis close to zero.

Description

technical field [0001] The present application relates to the technical field of anti-corrosion materials, in particular to a ship impressed current cathodic protection device. Background technique [0002] As we all know, the salt content of seawater is quite large, about 3% to 3.5%, so ships sailing in the ocean for a long time will be corroded by seawater, resulting in damage to the hull. [0003] At present, cathodic protection technology is usually used to protect ships from corrosion. Cathodic protection technology can be divided into two methods: sacrificial anode and impressed current. Because the driving potential of the sacrificial cathodic protection technology is low, the adjustment range of the protection current is narrow, and the protection range is small, while the driving voltage of the impressed current cathodic protection technology is high, which can flexibly control the cathodic protection current output in a wide range, and the protection range is relat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F13/06
Inventor 马力闫永贵李亮张海兵
Owner 725TH RES INST OF CHINA SHIPBUILDING INDAL CORP
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