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Novel auxiliary anode fixing device

A technology for auxiliary anodes and fixing devices, which is applied in the anticorrosion field of seawater pipelines in nuclear power plants, can solve the problems of easy damage and inconvenient use, and achieve the effect of preventing the intrusion of seawater

Pending Publication Date: 2019-02-15
CNNC NUCLEAR POWER OPERATION MANAGEMENT +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a new auxiliary anode fixing device for the existing fixing device which is inconvenient to use and easily damaged when replacing the auxiliary anode

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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] This embodiment provides a novel auxiliary anode fixing device, the structure of which is as follows figure 1 As shown, it includes an auxiliary anode 1 , a sealing ring 2 , a sleeve 3 , a sleeve support 4 , a flange 5 and a sealing cover 6 .

[0021] The sleeve 3 is an "L"-shaped tubular structure made of 10CrMoAl, which is the same material as the seawater pipeline, and is used to place the auxiliary anode 1 at the center of the seawater pipeline so that the auxiliary anode 1 forms a stable current. The outer wall of the sleeve 3 is coated with an anti-corrosion coating (such as epoxy anti-corrosion coating), which can effectively prevent the seawater from corroding the sleeve and causing the auxiliary anode 1 to fail.

[0022] The end of the sleeve 3 is threadedly connected with the auxiliary anode 1. The auxiliary anode 1 ...

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Abstract

The invention belongs to the technical filed of corrosion prevention of a seawater pipeline of a nuclear power plant, and particularly relates to a novel auxiliary anode fixing device. According to the device, an L-shaped sleeve is connected with an auxiliary anode, and a sealing ring is arranged between the sleeve and the auxiliary anode; and the top end of the sleeve is fixedly connected with aflange, and provided with a sealing cover, so that the sealing of the sleeve is achieved. The outer wall of the sleeve of the device is coated with an anticorrosion coating, and the situation that thesleeve is corroded by seawater and broken, and consequently the auxiliary anode is failed can be avoided effectively. The novel auxiliary anode fixing device has the beneficial effects that the connection position between the sleeve and the anode is sealed through a silicone ring, and the situation that the sealing between the sleeve and the anode is untight due to threads can be avoided; seawater intrusion can be avoided effectively; the occurrence of the situation can be avoided by adopting a sleeve bracket; the upper part of the auxiliary anode is in atmospheric environment, and is in threaded connection with the flange through the sealing cover, so that the interior of the sleeve is in the sealed state; and water or other substances with corrosion property in environment are preventedfrom entering the sleeve.

Description

technical field [0001] The invention belongs to the technical field of seawater pipeline anticorrosion in nuclear power plants, and in particular relates to a novel auxiliary anode fixing device. Background technique [0002] In the field of nuclear power, impressed current cathodic protection is one of the most commonly used anticorrosion methods for seawater pipelines. Plays a huge role in anti-corrosion. The impressed current cathodic protection adopted by nuclear power plant seawater pipelines usually consists of three parts: auxiliary anode, reference electrode and DC power supply. The auxiliary anode is connected to the positive pole of the DC power supply to form a complete circuit loop with the protected metal pipe and the environmental medium, and the formed current loop provides cathodic protection current for the protected structure. The installation method of the auxiliary anode in the seawater pipeline is usually to open a hole in the pipeline, then weld the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F13/18C23F13/06
CPCC23F13/06C23F13/18
Inventor 文杰张维陈廷伟王霞王舜基边春华胡明磊张志林杨琪震
Owner CNNC NUCLEAR POWER OPERATION MANAGEMENT
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