A corrosion test device capable of simulating complex environments and its test method

Abstract

The invention discloses a corrosion testing device capable of simulating the complex environment and a testing method thereof. The device comprises a dynamic high-temperature autoclave system, a medium circulation system and a gas mixing system which can be used for conducting corrosion tests on a sample; the medium circulation system cooperates with the dynamic high-temperature autoclave system so that the medium in the testing environment can be replaced or circulated, and thus the solution medium or flow velocity under the actual working condition is simulated; the gas mixing system is communicated with and cooperate with the dynamic high-temperature autoclave system to simulate the gas composition and pressure environment required by the tests; the dynamic high-temperature autoclave system is internally provided with a medium temperature controller which is used for simulating the temperature under the actual working condition. According to the testing device, multiple types of testing parameters are considered comprehensively, an expansion interface is provided, multiple types of actual working conditions can be effectively simulated, corrosion performance evaluation and research of multiple types of materials, such as stress corrosion, uniform corrosion, erosion corrosion, pitting corrosion, crevice corrosion, electrochemical corrosion, coating corrosion resistance evaluation and corrosion inhibitor efficiency evaluation, in the complex environment are completed, and correctness and scientificity of the test result are guaranteed.

Description

technical field [0001] The invention belongs to the field of material corrosion performance detection, and in particular relates to a corrosion test device capable of simulating complex environments and a test method thereof. Background technique [0002] In recent years, with the rapid development of the energy industry, the operating conditions of nuclear power, petroleum, chemical, coal chemical and other industries have become more and more stringent, and equipment serving in complex corrosive environments has become more and more common. However, the ensuing corrosion damage of equipment not only caused huge economic losses, but also caused environmental damage and casualties. [0003] At present, commercial nuclear power plants mainly use light water reactors (LWR), which are divided into boiling water reactors (BWR) and pressurized water reactors (PWR). More than 90% of the nuclear reactor coolants are high temperature and high pressure water. Many power plants aroun...

AI Technical Summary

Problems solved by technology

On the one hand, CO 2 、H 2 In the complex mining environment where S and other multi-phase acidic corrosive media coexist, the interaction of various corrosive media makes the corrosion law extremely complicated and difficult to grasp; on the other hand, CO 2 、H 2 The existence of S often causes severe corrosion of equipment and pipelines, which can lead to major safety accidents, resulting in serious casualties and major economic losses.

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