Rotary type erosion wearing electrochemical corrosion testing device

Abstract

The invention discloses a rotary type erosion wearing electrochemical corrosion testing device. The rotary type erosion wearing electrochemical corrosion testing device comprises a water tank, a slurry tank, a test sample, a rotary motor, a work electrode column, an auxiliary electrode, a rubber hose, a three way valve, a beaker, a reference electrode, a cover plate, a rotation shaft, a mixing impeller, a stand pillar, a motor control cabinet, a constant potential current analyzer and a circulating water system. The rotary type erosion wearing electrochemical corrosion testing device solves the problem that electrodes are easy to damage and deform during the erosion wearing process by designing an erosion wearing resistance protection mode for a work electrode, the reference electrode and the auxiliary electrode, performs an electrochemical corrosion test by connecting the three electrodes with the external constant potential current analyzer through guide wires, and draws an electrochemical erosion curve of the test sample during the erosion wearing process through a computer. The rotary type erosion wearing electrochemical corrosion testing device can simulate actual work conditions of erosion wearing, specially can accurately analyze and test a real situation of pure erosion amount during the erosion wearing process and influences of the pure erosion amount on a test sample material erosion wearing rule, and can be used in a site test in a real industrial environment.

Description

technical field [0001] The invention relates to a rotary erosion wear electrochemical corrosion test device. Background technique [0002] Liquid-solid two-phase flow or single-phase fluid erosion and wear is an important cause of rapid damage to various pipelines, impurity pumps, valves and other flow-passing components in petrochemical, metallurgy, water conservancy and hydropower industries. For liquid-solid two-phase flow erosion wear, since there are both erosion wear and corrosion in the erosion wear process, and there is also an interaction between erosion wear and corrosion, sometimes the material loss rate caused by the interaction is higher than that of pure corrosion. The sum of corrosion and pure scouring wear is even greater, and its degree of harm is greater than pure corrosion or pure scouring wear. Therefore, it is necessary to correctly test and characterize the total material loss rate, pure corrosion, pure wear rate, and corrosion-wear interaction rate in...

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Problems solved by technology

[0013] In order to solve the problem of protection and fixation of the electrode system, the invention solves the problem of easy damage and deformation of the electrodes in the process of erosion and wear through the design of the wear and corrosion protection of the working electrode, reference electrode and auxiliary electrode, and develops the erosion and wear resistance Electrode protective sleeve or electrode material and electrode system structure design, so that electrochemical online test can be carried out in the process of erosion and wear, and the change of pure corrosion amount in the process of erosion and wear can be recorded by computer

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