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Buoyant suspension type impressed current cathodic protection device

A technology of impressed current and cathodic protection, which is applied in the field of corrosion protection devices, can solve problems affecting the reliability of corrosion protection, affecting the safety and service life of ships or offshore working platforms, and difficult inspection and maintenance, so as to achieve safe and reliable corrosion protection

Inactive Publication Date: 2013-07-17
SHANGHAI CYECO ENVIRONMENTAL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Since the auxiliary anode, the key component, is fixed and installed underwater, it is very difficult to replace, maintain, and inspect the auxiliary anode of the system, especially for offshore steel structures such as working platforms that have been working in the ocean for a long time, and ocean-going ships that are sailing. Or it is necessary to enter the dock to inspect and replace the anode body, which seriously affects the reliability of corrosion protection, and even affects the safety and service life of the ship or offshore working platform

Method used

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  • Buoyant suspension type impressed current cathodic protection device

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Embodiment Construction

[0022] The guide rail (1) is a tubular guide tube with a smooth inner wall and insulation. Its upper opening is fixed to the deck or maintenance platform (9) through the guide rail fixing bracket (7), and its lower opening is deep into the submerged position in the liquid to ensure that the anode body (2) And control its immersion depth in the liquid. At the same time, the tubular guide rail (1) acts as a guiding function for the anode body to lift up and down; the anode body (2) is a bar-shaped anode, which plays a role of anti-corrosion protection for the steel structure in seawater under the action of an applied current . Its upper end is connected with the buoyancy device (4), and its lower end is positioned in the guide plate of the device in the guide rail in a cone shape; the upper end of the buoyancy device (4) is equipped with a soft rope-shaped cable and a lifting mechanism (5). Or manpower or mechanical lifting on the maintenance platform can easily lift the anode ...

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Abstract

The invention relates to an impressed current cathodic protection device installed by a buoyant suspension way. The device is characterized in that: an anode body is arranged in a guide rail, the immersion depth of the anode body in seawater is controlled by a buoyant apparatus and is not affected by the draft of a ship or seawater fluctuation, so that the system can be in a relatively stable working state. The anode body is lifted to a ship deck or examination and repair platform through a lifting device, thus solving the phenomenon that a working platform permanently working in the ocean and an underway ocean-going ship need diving or docking so as to realize examination and replacement of the anode body. The product has the characteristics of simple and reasonable structure, easy construction, low cost, long service life, convenient operation and maintenance, no pollution to the environment and the like, and has extensive practical applicability.

Description

1. Technical field [0001] The invention relates to a corrosion protection device for steel structures in seawater. In particular, it is an impressed current cathodic protection device installed in a buoyant suspension mode. 2. Background technology [0002] The traditional impressed current cathodic protection device provides corrosion protection for steel structures in seawater by fixedly installing auxiliary anodes. Since the auxiliary anode, the key component, is fixed and installed underwater, it is very difficult to replace, maintain, and inspect the auxiliary anode of the system, especially for offshore steel structures such as working platforms that have been working in the ocean for a long time, and ocean-going ships that are sailing. Or it is necessary to enter the dock to inspect and replace the anode body, which seriously affects the reliability of corrosion protection, and even affects the safety and service life of the ship or offshore working platform. 3. Co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F13/06
Inventor 计明曾晓燕陆岚孙红波姜文强马牧野
Owner SHANGHAI CYECO ENVIRONMENTAL TECH
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