High speed slurry flow erosion and corrosion test apparatus

Abstract

The invention relates to a high speed slurry flow erosion and corrosion test apparatus, which comprises a box comprising a variable diameter port, a flange and a cavity, and a slurry circulation control system. According to the present invention, in the box, one group of specimens form a jet flow channel , the other group of specimens are arranged at a jet flow outlet position, and the specimens can be separately electrified to from electrical corrosion so as to form the high speed erosion and corrosion under the submerged jet flow, such that the performance test and the comparison of the abrasion resistance, the corrosion resistance and the combination of the abrasion resistance and the corrosion resistance of the same or different materials in the same test environment; and with the high speed slurry flow erosion and corrosion test apparatus, the parallel erosion, the free angle erosion, and the erosion, the cavitation erosion, the electrochemical corrosion and other corrosion types comprising single corrosion or combined corrosion under the submerged jet flow of the material in the slurry environment can be efficiently completed, the test is simple and reliable, the operation is simple, the whole power is low, and the erosion, the cavitation erosion, the corrosion and the combined corrosion of the high speed slurry are especially and easily achieved.

Description

technical field [0001] The invention relates to a high-speed slurry flow erosion and corrosion test device, in particular to a single or high-speed slurry flow erosion, angle free erosion, and submerged jet erosion, cavitation erosion and electrochemical corrosion of materials under the condition of high-speed slurry flow. Combined wear test device. Background technique [0002] In marine transportation, petrochemical industry, coal mine power and other mechanical equipment involving liquid media, due to the existence of solid media in the liquid, such as sand particles, salt particle groups, etc., when the solid-liquid interface moves relative to each other, shocks may occur. Wear behaviors such as erosion, cavitation and electrochemical corrosion will cause equipment failure, bring safety hazards or generate huge economic losses; with the increase of relative motion speed, such as jet water surface, ocean surface ships, etc. The research and evaluation of the corrosion an...

AI Technical Summary

Problems solved by technology

The disclosed rotary abrasion device is to accelerate the erosion and corrosion process of the specimen by rotating the specimen at high speed in the slurry to generate a high relative speed; the jet abrasion device is to freely spray the slurry to the specimen through the nozzle to achieve high-speed erosion Corrosion, or a combination of rotary and jet, to generate a higher relative velocity, but due to the limitation of the working principle, these test methods are limited, and the actual erosion velocity cannot be controlled and monitored; water holes, pipeline cycle erosion corrosion, The size of the on-site simulation and other devices is huge, and the test conditions are difficult to stabilize, which affects the research, evaluation and development of high-performance new materials such as erosion resistance and corrosion resistance under high-speed conditions.

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