Metal microorganism corrosion electrochemical testing device under flowing system

Abstract

The invention belongs to the field of metal electrochemical corrosion testing, and provides a metal microorganism corrosion electrochemical testing device under a flowing system to solve the problemsthat microorganisms cannot grow on a metal surface in a gathered manner in a short time, electrochemical corrosion of metal materials cannot be measured under the flowing system in real time and the like. The steps and the cost of manufacturing special working electrodes are omitted, and practicability is enhanced. The metal microorganism corrosion electrochemical testing device under the flowingsystem comprises a cylindrical glass cavity, an upper end polytetrafluoroethylene sealing cover, a lower end polytetrafluoroethylene sealing cover, a reference electrode, a salt bridge, an auxiliary electrode, a platinum sheet, a dosing hole, a sampling hole, a working electrode, a working electrode contact hole, a working electrode contact, a copper wafer, a screw, a water inlet and a water outlet, wherein the cylindrical glass cavity is a device body, the polytetrafluoroethylene sealing covers are arranged at the upper end and the lower end of the cavity, the upper end of the cavity is provided with the reference electrode, the auxiliary electrode, the dosing hole and the sampling hole, and the lower end of the cavity is provided with the working electrode. The metal microorganism corrosion electrochemical testing device is mainly applied to metal electrochemical corrosion testing places.

Description

technical field [0001] The invention belongs to the field of metal electrochemical corrosion testing and can be used for real-time electrochemical monitoring of the metal microbial corrosion process in a fluid system. Specifically, it relates to an electrochemical test device for metal microbial corrosion in a fluid system. Background technique [0002] At present, more than 90% of the water supply pipelines in service in my country are metal pipelines. Corrosion of metal pipelines is one of the important reasons for the leakage and failure of pipeline networks, and about 20% of them are caused by the action of microorganisms. The electrochemical test method is widely used in the experimental research of metal pipeline corrosion due to its advantages of rapid continuous and in-situ monitoring. The electrochemical analysis technology can obtain the corrosion data and the growth of microorganisms more comprehensively and accurately. The existing electrochemical monitoring dev...

AI Technical Summary

Problems solved by technology

Solve the problems in the prior art that microorganisms cannot gather and grow on the metal surface in a short period of time and the real-time electrochemical corrosion measurement of metal materials under the flow system cannot be carried out; in addition, the working electrode of the device can directly use the metal material test piece under study. The steps and costs of making a dedicated working electrode are eliminated, which enhances the practicability of the device

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