Adjustable symmetric multi-channel diversion erosion corrosion test system and method

Abstract

The invention discloses an adjustable symmetric multi-channel diversion erosion corrosion test system and method. The adjustable symmetric multi-channel diversion erosion corrosion test system comprises a gas bottle, a solution tank, a centrifugal pump, a scour runner and an electrochemical workstation, wherein the solution tank is internally provided with a cooling coil; a scour fluid inlet and ascour fluid outlet are formed in the scour runner; the scour runner is internally provided with a movable deflector; two sample mounting ports which are symmetric to each other relative to the centerof an axis of the deflector are formed in the runner wall of the scour runner; a gas outlet of the gas bottle is communicated with the solution tank through a connecting pipeline; the scour fluid outlet of the scour runner is connected with the solution tank through a return pipeline; an input port of the centrifugal pump is connected with the solution tank through a connecting pipeline; an output port of the centrifugal pump is connected with each of the scour fluid inlet of the scour runner and the return pipeline through connecting pipelines; and two electrodes mounted on samples in the sample mounting ports are respectively connected with corresponding electrode wires on the electrochemical workstation through the electrode leads.

Description

technical field [0001] The invention relates to an adjustable symmetrical multi-channel diversion erosion corrosion test system, which is mainly used for electrochemical test experiments of pipeline erosion corrosion. The invention also relates to a test method of the erosion corrosion test system. Background technique [0002] In petroleum, chemical, mining and other industries, corrosion and erosion often cause accelerated damage to equipment. For example, in the production of wet-process phosphoric acid, the erosion and corrosion of moving equipment and static equipment by phosphoric acid slurry has always been a difficult problem. The high solid content and high-speed erosion often cause grooves, gaps, thinning and even fractures in equipment such as slurry pumps, stirring paddles, pipes and pipe parts. [0003] Metal materials under the action of fluid are prone to erosion corrosion. This kind of corrosion is very common in marine environments and oil pipeline transpo...

AI Technical Summary

Problems solved by technology

The above-mentioned experts have made specific studies on the distribution of flow field changes in pipelines, but there is no actual experimental device that can effectively control the influence of flow field changes caused by angle changes on corrosion products.

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