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Corrosion-resistant construction process for bracelet type anode

A construction technique and corrosion-resistant technology, which is applied in the field of anti-corrosion construction of underwater pipelines, can solve the problems of anode material consumption, large number of bracelet-type anode installations, and cumbersome disassembly and assembly, so as to increase the reaction contact area, enhance the anti-corrosion protection effect, and facilitate construction. The effect of easy operation

Pending Publication Date: 2021-10-15
SHANGHAI JIANYE TECH ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When constructing underwater pipelines, the bracelet anode is usually assembled on the pipeline to protect the pipeline from corrosion; since the bracelet anode is used as a sacrificial anode material, the anode material is continuously consumed as the current continues to flow, so the bracelet needs to be periodically At present, the bracelet-type anodes are mostly installed outside the tube body one by one through the fixing parts. Due to the large number of bracelet-type anodes installed, the disassembly and assembly are very cumbersome

Method used

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  • Corrosion-resistant construction process for bracelet type anode
  • Corrosion-resistant construction process for bracelet type anode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1: See figure 1 The bracelet anode 1 is a circular arc-shaped surface structure adapted to the circumferential surface of the tubular 5, and the outer arched surface is provided with a pleated surface 2 having a continuous corrugated shape, and the bracelet anode 1 is vertically disposed vertically. The ear plate 3, each of the ear plate 3 opens a positioning hole 4, respectively.

[0035] In the present embodiment, the flange 6 is a circular structure made of two semi-circular cyclics, and one guide hole 7 is opened at both ends of each semicircular ring.

[0036] The abutment surface of the bracelet anode 1 is provided with a pleated surface 2 having a continuous corrugated shape, and it is possible to increase the reaction contact area, enhance the anti-corrosion protection effect, and vertically vertically on both ends of the bracelet anode 1, and can be used with tubes The screw 8 on both sides of the body 5 mates, which is convenient for batch disassembly to t...

Embodiment 2

[0037] Example 2: The specific production process of the bracelet anode 1 is as follows:

[0038] Step 1: Secure the same length of the wire in the inside of the core, and the outer side of the core is fixed to the same positioning rod;

[0039] Step 2: Place the outer mold, heat the core to 300 ° C ± 50 ° C, and place the iron core in the outer mold, so that the iron rods are in contact with the outer mold, ensuring that the core is in the same center with the outer mold, and then arranges the mold. After the mold, after the mold, each positioning rod is in contact with the inner mold;

[0040] Step 3: An anodic melt of 680 ° C to 750 ° C is cast in the mold, the outer mold.

[0041] Step 4: Cool molding, obtain the bracelet anode 1 having a circular arc-shaped curved surface structure having a continuous corrugated shape 2;

[0042] Step 5: Welding the ear plate 3 after the molded bracelets 3, resulting in the final finished product.

[0043] A hardcore is fixed in the inside of...

Embodiment 3

[0044] Example 3: See 1-2: The corrosion resistant construction process of the bracelet anode 1 on the tubular 5 includes the following specific steps:

[0045] S1: The flange ring 6 is customized according to the outer diameter size of the tube 5, so that the flange 6 can be attached to the tubular body 5, and two guiding holes 7 are respectively opened on both sides of the flange ring;

[0046] S2: First determine the mounting section of the bracelet anode 1 on the pipe body 5, and then weld the multi-group flange 6 in the corresponding mounting segment, and perform anti-corrosion treatment on the weld;

[0047] S3: Each set of flanges 6 is set to two, controlling the distance between the two flanges 6 per group, so that it can be placed in 3-5 pair of bracelet anode 1 distributed up and down;

[0048] S4: The tubular 5 of each pair of engagement between the bracelet anode 1 is connected between the two flanges 6, and then inserted between the two guide holes 7 corresponding to ...

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Abstract

The invention belongs to the field of underwater pipeline corrosion-resistant construction, and particularly discloses a corrosion-resistant construction process for a bracelet type anode. The bracelet type anode is of an arc-shaped curved surface structure matched with the circumferential surface of a tube body, the outer side arched surface of the bracelet type anode is provided with a continuous corrugated wrinkle surface, and the four corners of the bracelet type anode are each vertically provided with a lug plate; and a positioning hole is formed in each lug plate. According to the bracelet type anode of the special structure, the corrugated surface in the continuous corrugated shape is arranged on the arched surface of the outer side of the bracelet type anode, so that the reaction contact area can be increased, and the corrosion-resistant effect can be enhanced; meanwhile, the vertical lug plates are vertically arranged at the two ends of the bracelet type anode and can be matched and positioned with screw rods on the two sides of the tube body, so that batch disassembly and assembly of the bracelet type anodes are facilitated, and operation is convenient; a flange ring is welded on the tube body, and a mounting section of the bracelet type anode, the flange ring, a welding seam, the screw rods, a nut and the lug plates are subjected to anti-corrosion treatment, so that the corrosion of a mounting part is avoided, and the whole construction operation is convenient.

Description

Technical field [0001] The present invention relates to the field of anti-corrosion construction in underwater pipelines, and is specifically a bracelet anode corrosion resistant construction process. Background technique [0002] Bracelet anode is a sacrificial anode cathode protection product having low drive voltage, light weight, and high current efficiency. It is mainly suitable for the anti-corrosion protection of oil, air supply, and drainage lines, underground cables, chemicals, communications, harbor, ships, reservoirs, etc. in freshwater. [0003] When the underwater pipeline is applied, the bracelet anode is usually assembled to the pipe to prevent corrosion protection; due to the bracelet anode as a sacrificial anode material, with the constant flow of the current, the anode material is constantly consumed, so it is necessary to periodically on the bracelet. The anode is replaced; the current bracelet anode is installed outside the tube body by the fixture, since the ...

Claims

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Application Information

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IPC IPC(8): C23F13/02C23F13/10
CPCC23F13/02C23F13/10C23F2213/31C23F2213/32
Inventor 宋逸王登堂
Owner SHANGHAI JIANYE TECH ENG
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