Sinopec has been granted an invention patent in the field of technology for corrosion protection of oil and gas pipelines: \"An intelligent experimental device and method for corrosion testing of sacrificial anodes in coastal and marshland soils\"”
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Sinopec has been granted an invention patent in the field of corrosion protection technologies for oil and gas pipelines: “An intelligent experimental device and method for testing the corrosion of sacrificial anodes in soil along tidal flats, seas, and coasts.” According to data from the Tianyancha app, Sinopec (600028) has obtained a new invention patent, titled “An intelligent experimental device and method for testing the corrosion of sacrificial anodes in soil along tidal flats, seas, and coasts.” The patent application number is CN202111530482.8, and it was granted on October 14, 2025. Patent Abstract: The present invention provides an intelligent experimental device for the corrosion of sacrificial anodes in coastal and shore soil, and belongs to the technical field of corrosion protection for oil and gas pipelines. The technical solution is: an intelligent corrosion experiment device for sacrificial anodes in coastal and shallow marine soils, which includes an experimental chamber and a seawater circulation system. The experimental chamber comprises a water storage tank and a wet-dry alternating chamber; the water storage tank consists of an inner tank and an outer tank, with a gap existing between the inner wall of the inner tank and the inner wall of the outer tank ； The internal space of the alternating wet-dry chamber is divided into several separate areas for sacrificial anode corrosion experiments; these areas can hold soil, and each area is equipped with a water inlet grille, with waterproof strips surrounding each of these water inlet grilles ； The dry-wet alternating box is capable of moving up and down within the inner box; when the dry-wet alternating box is raised, the water inlet grille can be blocked by the inner box. The beneficial effect of this invention is that it enables the simulation of a corrosive environment through alternating dry and wet conditions ； It features multiple independent experimental areas, allowing multiple sets of experiments to be conducted simultaneously.
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