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Dynamic environment microorganism electrochemical corrosion experimental device

A technique for microbial electrochemical and corrosion experiments, applied in the field of corrosion experiments and electrochemical tests

Inactive Publication Date: 2008-07-09
UNIV OF SCI & TECH BEIJING
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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 microbial corrosion electrochemical test device in a suitable microbial living environment, which solves the problem of monitoring the electrochemical signal of the microbial corrosion process in the past, and can conveniently and accurately measure the surface of the sample under dynamic conditions. electrochemical signal

Method used

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Embodiment Construction

[0011] The sample is fixed on the sample holder plate, wherein the electrochemical test sample is in good contact with the copper sheet 34 through the pressure of the compression spring 33, and is connected to the working electrode connector 4 through the signal conduction path. Adjust the positions of the annular platinum wire 19 and the Lukin capillary mouth of the salt bridge 20 so that the three electrodes are at the same level. Cover the box cover 10, tighten the container with bolts 13 to seal it, inject the pre-configured solution containing bacteria into the airtight container through the bacteria solution injection switch 21, and put the container into a constant temperature water bath to control the experimental temperature. The rotating shaft is connected to the speed-controllable motor through the coupling 27 so as to adjust and meet the speed of different experimental requirements. Connect the working electrode connector 4, reference electrode connector 5, and aux...

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Abstract

The invention belongs to the field of corrosion test and electrochemical test technology and particularly provides an electrochemical corrosion and test device of dynamic microbial corrosion process, which is suitable for metal microbial corrosion behavior and mechanism study under normal pressure and dynamic operating condition of corrosion medium, in particular to electrochemical signal test of microbial corrosion process under dynamic condition. The device is characterized in that the device is composed of a motor, a shaft, a carbon brush, a fixture, a three-electrode system, a signal transduction path, an external electrochemical test apparatus, a sealed test chamber, a thermostatic water bath, a bacteriological incubator and a waste collection box, wherein the motor is connected with the shaft through a shaft coupler; the shaft is fixed on the upper cover of the sealed test chamber through a bearing; a sample fixture is fixed on the other end of the shaft; and the three-electrode system is connected with an external electromagnetic test instrument through the signal transduction path. The device can monitor electrochemical signals of a work electrode under the dynamic conditions and provide a sample for corrosion weight loss and profile observation. The box body (11) of the device is made of transparent organic glass, so that the change in color and turbidity degree of the corrosion medium containing microbes can be observed. Two out-laid containers can achieve update of bacterial liquid in the test process, so that the invention is more suitable for study of microbial corrosion behavior and mechanism.

Description

technical field [0001] The invention belongs to the technical field of corrosion experiment and electrochemical test, and in particular provides an electrochemical corrosion and test device for dynamic microbial corrosion process, which is suitable for the research on the behavior and mechanism of metal microbial corrosion under normal pressure and dynamic working conditions of corrosive media, especially It is suitable for electrochemical signal testing of microbial corrosion process under dynamic conditions. Background technique [0002] Microbial corrosion widely exists in petroleum, chemical industry, steel, food processing, construction, electric power, communication, mining, nuclear energy, marine transportation, water supply and other fields, and its harmfulness has attracted more and more people's attention. The electrochemical test of microbial corrosion process in dynamic environment is of great significance to the study of microbial corrosion behavior and mechanis...

Claims

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Application Information

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IPC IPC(8): G01N17/02
Inventor 柳伟路民旭赵艳亮
Owner UNIV OF SCI & TECH BEIJING
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