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Replaceable sacrificial anode well and its replacement method

A sacrificial anode technology to be replaced, applied in the field of sacrificial anode protection devices, can solve the problems of no economically feasible non-excavation replaceable sacrificial anode technology, laborious work, high cost, etc., achieve important social and economic benefits, and reduce replacement costs , the effect of easy operation

Active Publication Date: 2017-08-25
北京永逸舒克防腐蚀技术有限公司
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AI Technical Summary

Problems solved by technology

Laborious and costly
[0008] There is no economically feasible non-excavation replaceable sacrificial anode technology in the existing technology, and the sacrificial anode system that has been in operation for more than 10 years urgently needs to replace the failed sacrificial anode

Method used

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  • Replaceable sacrificial anode well and its replacement method
  • Replaceable sacrificial anode well and its replacement method
  • Replaceable sacrificial anode well and its replacement method

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Embodiment Construction

[0026] Such as figure 1 As shown, the replaceable sacrificial anode well of the present invention includes a well body 1 , packing material 2 , two sacrificial anodes 3 and an insulating plate 4 . The well body 1 communicates with the pipeline, and an insulating plate 4 is axially arranged in the well body 1 . The insulating plate 4 divides the well body into two cavities, both cavities are filled with packing material 2, and a sacrificial anode 3 is arranged on the upper part of the two cavities. Each sacrificial anode 3 is connected to the pipeline through wires. The bottoms of the two cavities lead to the pipeline 6, the pipeline 6 is filled with ordinary loess, and the resistivity of the packing material 2 is lower than that of the ordinary loess. The top of the packing material 2 in the well body 1 is covered with floating soil.

[0027] The wires of each sacrificial anode are connected to the pipeline 6 through the test pile 5 .

[0028] Such as figure 2 and imag...

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Abstract

The replaceable sacrificial anode well of the present invention relates to a sacrificial anode protection device, in particular to a sacrificial anode well for protecting underground pipelines and a replacement method thereof. The purpose is to provide a replaceable sacrificial anode well and its replacement method with simple structure, time-saving and labor-saving, low cost, easy operation, low excavation difficulty and long service life. The replaceable sacrificial anode well of the present invention comprises a well body (1), packing material (2), two sacrificial anodes (3) and an insulating plate (4), the well body (1) communicates with the pipeline, and the well body (1) ) is axially provided with an insulating plate (4), which divides the well body into two cavities, both cavities are filled with packing material (2), and the upper part of the two cavities Each is provided with a sacrificial anode (3), and each of the sacrificial anodes (3) is connected to the pipeline through wires.

Description

technical field [0001] The invention relates to a sacrificial anode protection device, in particular to a sacrificial anode well for protecting underground pipelines and a replacement method thereof. Background technique [0002] The sacrificial anode protection method is the main method for corrosion prevention and control of steel pipelines in urban gas pipeline networks, and is widely used in urban gas pipeline networks. The sacrificial anode protection method is to connect the protected metal with a metal or alloy with a more negative potential (that is, a sacrificial anode) to polarize the protected body cathodically to reduce the corrosion rate. [0003] Traditional sacrificial anode wells have piping at the bottom of the well. There are two sacrificial anodes next to the gas pipeline. Two sacrificial anodes are packed in cloth bags filled with packing material. The cloth bag fits tightly with the pipe. The well is filled with ordinary soil. [0004] The main comp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F13/06C23F13/22
Inventor 高顺利段蔚刘建辉尹志彪褚大军吕振国
Owner 北京永逸舒克防腐蚀技术有限公司
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