Pipe flow type inner wall erosion corrosion test device

Abstract

The invention relates to the field of erosion corrosion tests, and particularly relates to a pipe flow type inner wall erosion corrosion test device which can be used for simulating the tangential force structure flow pattern on the pipeline surface at different flow speeds in pipe flow in an inner wall erosion corrosion test and used for realizing weight loss measurement of a material, real-time measurement of electrochemical parameters and the like. The pipe flow type inner wall erosion corrosion test device is composed of a power pump, a frequency converter, an electromagnetic flowmeter, a special clamp, a stirring pump, a cooler, a heater, a thermocouple, a slurry tank and the like; and the key lies in that tubular samples with different diameters can be adopted and are connected with a pipeline system by the special clamp, and the tubular samples are used as working electrodes which cooperate with reference and auxiliary electrode experimental tubular samples to realize real-time measurement of the electrochemical parameters. The device provided by the invention can be used as a small test device for simulating the inner wall erosion corrosion of a pipeline, and is used for evaluating the erosion corrosion resistance of a real pipe, and solves the problem of high construction cost of a traditional pipe flow type erosion corrosion test device.

Description

Technical field [0001] The invention relates to the field of erosion corrosion test, in particular to a pipe flow type inner wall erosion corrosion test device. Background technique [0002] In the prior art, scouring and corrosion mostly use rotating, tube-flow, and jet experimental devices. The rotating device generates tangential force based on the sample rotating on the sample holder and the stationary liquid, thereby causing corrosion and wear. However, most of the pie-shaped or cylindrical samples used in the rotary type can not well simulate the erosion and corrosion behavior of the fluid along the axial direction of the pipe inner wall; the spray type experimental device is based on the circulating pump and the nozzle to generate high-speed flowing medium to perform the sample The structure of the impact can accurately control the flow rate of the impact liquid flow and change the angle of attack of the scouring, but it cannot simulate the actual working conditions very w...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a pipe-flow type inner wall erosion corrosion test device, which can be used as a small test device for simulating pipeline inner wall erosion corrosion, and is used to evaluate the erosion-corrosion resistance of actual pipes, and at the same time solve the problem of the traditional pipe-flow type erosion corrosion test device. The problem of high construction cost of erosion corrosion experimental device

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