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Electrochemical test device for metallic corrosion of 90-degree elbow in flowing corrosive medium

A technology of flow corrosion and metal corrosion, applied in measuring devices, weather resistance/light resistance/corrosion resistance, scientific instruments, etc.

Active Publication Date: 2017-12-08
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the deficiencies in the prior art, the object of the present invention is to provide a 90° elbow metal corrosion electrochemical test device in a flowing corrosive medium, which can pass through a glass pipe The port at the end is connected to the circulation system for electrochemical dynamic monitoring of the corrosive medium, which solves the problem that the electrochemical corrosion measurement in the prior art cannot perform real-time and effective electrochemical corrosion measurement of the metal material at the pipe elbow in the flowing corrosive medium. In order to more completely and accurately simulate and study the operation and corrosion behavior of the entire water supply pipeline, fully consider the influence of flow field distribution on different sections of the elbow on corrosion

Method used

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  • Electrochemical test device for metallic corrosion of 90-degree elbow in flowing corrosive medium
  • Electrochemical test device for metallic corrosion of 90-degree elbow in flowing corrosive medium
  • Electrochemical test device for metallic corrosion of 90-degree elbow in flowing corrosive medium

Examples

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Embodiment 1

[0044] Example 1 (P type)

[0045] Such as figure 1 As shown, it includes: a glass pipe with the same structure and size as the 90° elbow pipe to be tested (the inner diameter of the glass pipe is 50mm), the glass pipe is composed of a 90-degree curved pipe section, a first straight pipe section S1 and a second straight pipe section S2 is composed (the glass pipe between S1 and S2 is a 90-degree curved pipe section), the glass pipe is arranged horizontally, and the 90-degree curved pipe section, the first straight pipe section and the second straight pipe section are located on the same horizontal plane. The first straight pipe section is perpendicular to the second straight pipe section and the first straight pipe section and the second straight pipe section communicate with the ports at both ends of the 90-degree curved pipe section respectively, and a glass pipe is installed on the ports on both sides of the glass pipe Teflon screw fittings for connection to circulation sy...

Embodiment 2

[0061] Example 2 (L type)

[0062] Such as figure 2 As shown, it includes: a glass pipe with the same structure and size as the 90° elbow pipe to be tested (the inner diameter of the glass pipe is 50mm), and the glass pipe is composed of a 90-degree curved pipe section, a first straight pipe section and a second straight pipe section , the glass pipeline is arranged horizontally, and the 90-degree curved pipeline section, the first straight pipeline section and the second straight pipeline section are located on the same horizontal plane. The first straight pipe section is perpendicular to the second straight pipe section and the first straight pipe section and the second straight pipe section communicate with the ports at both ends of the 90-degree curved pipe section respectively, and a glass pipe is installed on the ports on both sides of the glass pipe Teflon threaded fittings. The 90-degree curved pipe section is radially symmetrical along its curved section. The lengt...

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Abstract

The invention discloses an electrochemical test device for metallic corrosion of a 90-degree elbow in a flowing corrosive medium. The device comprises a glass pipeline which is in same structure and size with a to-be-tested 90-degree elbow, wherein the glass pipeline is horizontally arranged; the glass pipeline is composed of a 90-degree bent pipeline section, a first straight pipeline section and a second straight pipeline section; the first straight pipeline section and the second straight pipeline section are vertical to each other and are respectively connected with the ports at the two ends of the 90-degree bent pipeline section; and a plurality of glass branches are connected with the glass pipeline. The electrochemical test device for metallic corrosion of the 90-degree elbow in the flowing corrosive medium disclosed by the invention is used for performing real-time electrochemical corrosion measurement on the to-be-tested metal at the pipeline elbow in the flowing corrosive medium and breaks through the limitation of the present electrochemical test device for researching the corrosion test of the straight pipe section, so that the running condition and corrosion behavior of the whole water supply pipeline can be more completely and accurately stimulated and researched.

Description

technical field [0001] The invention belongs to the technical field of electrochemical corrosion measurement, and in particular relates to an electrochemical test device for metal corrosion of a 90° elbow in a flowing corrosive medium. Background technique [0002] my country's water supply pipes and reclaimed water pipes are mainly made of metal, which will cause huge energy and economic losses every year due to the leakage of the pipe network, and the corrosion of metal pipes is one of the important reasons for the leakage and failure of the pipe network, especially the corrosion damage at the elbows. serious. As a means of observing the corrosion resistance of materials, the electrochemical measurement method is widely used in the experimental research of the corrosion of metal water supply pipes due to its advantages of rapidity and continuous monitoring. However, the existing electrochemical monitoring devices mostly focus on the corrosion test of the straight pipe sect...

Claims

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Application Information

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IPC IPC(8): G01N17/02G01N17/00
CPCG01N17/006G01N17/02Y02E30/30
Inventor 田一梅张茹芳刘星飞宋雅荣刘春彤
Owner TIANJIN UNIV
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