A deep-sea on-site corrosion electrochemical testing device and testing method thereof

Abstract

The invention belongs to the field of ocean engineering technology, and specifically relates to a deep-sea field erosion electrochemical testing device and a testing method thereof. The deep-sea field erosion electrochemical testing device comprises a pressure-proof watertight electronic cabin, an erosion electrochemical testing system arranged in the pressure-proof watertight electronic cabin, a plug-in type electrode system integrated outside one end of the pressure-proof watertight electronic cabin, and a porous screening cover; the erosion electrochemical testing system is connected with the plug-in type electrode system through a wire; and the porous screening cover is arranged at one end of the pressure-proof watertight electronic cabin, and the plug-in type electrode system is covered by the porous screening cover. The deep-sea field erosion electrochemical testing device can be used for developing in-situ real-time rapid detection operation under deep-see conditions, and has characteristics of high pressure resistance, water seepage prevention, erosion resistance, strong anti-jamming capability, small size, high strength, good insulating and sealing properties and the like.

Description

technical field [0001] The invention belongs to the technical field of marine engineering, and in particular relates to a deep-sea on-site corrosion electrochemical test device and a test method thereof. Background technique [0002] The marine environment is a harsh and corrosive environment. Metal structures such as port facilities, oil platforms, submarine pipelines, marine vessels, and deep submersibles must carefully consider the corrosion problems brought about by the marine environment during the design and use process. In order to grasp the corrosion behavior and law of various materials in the marine environment, and to provide the basis and basis for the design, material selection, protection and development of new materials for fixed or mobile marine steel structures, it is necessary to carry out corrosion tests in real sea environments and accumulate various The corrosion data of the material in the actual use environment. At present, standard test methods and t...

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Problems solved by technology

However, most of the current electrochemical testing methods can only be applied under the conditions of indoor atmospheric pressure and simulated deep sea water quality. There are still some difficulties in electrochemical testing under high hydrostatic pressure conditions, and it is difficult to measure accurately while maintaining high hydrostatic pressure in the electrolytic cell. and control various seawater quality conditions that affect the corrosion process

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